Official or correct explanation of numbers on the 1st column for every method/function call in process sample?
Hello, I know that questions on tools are not relevant for this cocoa-dev, but I couldn’t find any relevant mailing list for tools like ‘sample’ or sampling using Activity Monitor GUI tool. So, let me ask it here, because all Cocoa programmers use such tools whenever needed. I have a process sample like this. Call graph: 1379 Thread_839846: Main Thread DispatchQueue_multiple + 1379 start (in Wirecast) + 52 [0x100a31074] + 1379 main (in Wirecast) + 1070 [0x100b3e16a] + 1379 eApp::Run(bool, zRecord*) (in libeva.dylib) + 779 [0x101033225] + 1379 eWindowManager_cocoa::MessageLoop() (in libeva.dylib) + 70 [0x101037932] + 1379 -[NSApplication run] (in AppKit) + 594 [0x7fff88cd2593] I can guess the number on the 1st (2nd?) on every row after + sign. It should be number of samples or how long a method/function take. According to MAN page for ‘sample’, it samples at every 1 msec. And http://stackoverflow.com/questions/10709577/spindump-analysis-instructions http://stackoverflow.com/questions/10709577/spindump-analysis-instructions says, it’s the number of samples. By looking at the numbers on children nodes, I guess so too. But is it really so? If there is a better mailing list for this kind of inquiry, please let me know. Thanks, JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Official or correct explanation of numbers on the 1st column for every method/function call in process sample?
Well, it’s not the one I’m asking for. + 1379 start (in Wirecast) + 52 [0x100a31074] ^^ | | This is not the number I asked for. | | This is the number I asked for Thanks, On Mar 17, 2015, at 2:58 PM, Steve Mills sjmi...@mac.com wrote: On Mar 17, 2015, at 15:52, JongAm Park jongamp...@sbcglobal.net wrote: Call graph: 1379 Thread_839846: Main Thread DispatchQueue_multiple + 1379 start (in Wirecast) + 52 [0x100a31074] + 1379 main (in Wirecast) + 1070 [0x100b3e16a] + 1379 eApp::Run(bool, zRecord*) (in libeva.dylib) + 779 [0x101033225] + 1379 eWindowManager_cocoa::MessageLoop() (in libeva.dylib) + 70 [0x101037932] + 1379 -[NSApplication run] (in AppKit) + 594 [0x7fff88cd2593] I can guess the number on the 1st (2nd?) on every row after + sign. It should be number of samples or how long a method/function take. The number after the + is the distance after the function named before the +. That's all I know. :) Steve via iPad ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Official or correct explanation of numbers on the 1st column for every method/function call in process sample?
Yup! Thank you, :) On Mar 17, 2015, at 3:41 PM, Scott Ribe scott_r...@elevated-dev.com wrote: On Mar 17, 2015, at 4:26 PM, JongAm Park jongamp...@sbcglobal.net wrote: Then can the number of samples be interpreted as how long it took there... It can be taken as a very rough approximation of that. -- Scott Ribe scott_r...@elevated-dev.com http://www.elevated-dev.com/ (303) 722-0567 voice ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Official or correct explanation of numbers on the 1st column for every method/function call in process sample?
Hello, Thank you very much for your explanation. Then can the number of samples be interpreted as how long it took there, because sampling rate in (num of samples / sampling rate) is given? This is from the process sample. Sampling process 6803 for 3 seconds with 1 millisecond of run time between samples = from this line sampling rate is 6803/3 Sampling completed, processing symbols… I intentionally omitted information here… Load Address:0x100a2f000 Version: 6.0.2 (23678) Code Type: X86-64 Parent Process: ??? [1] Date/Time: 2015-03-11 15:08:13.780 -0700 OS Version: Mac OS X 10.10.2 (14C109) Report Version: 7 Analysis Tool: /usr/bin/sample So, 1379 can mean 1379 / (6803/3) = (1379 * 3)/6803 sec. Thanks, On Mar 17, 2015, at 3:11 PM, Greg Parker gpar...@apple.com wrote: On Mar 17, 2015, at 1:52 PM, JongAm Park jongamp...@sbcglobal.net wrote: Hello, I know that questions on tools are not relevant for this cocoa-dev, but I couldn’t find any relevant mailing list for tools like ‘sample’ or sampling using Activity Monitor GUI tool. So, let me ask it here, because all Cocoa programmers use such tools whenever needed. I have a process sample like this. Call graph: 1379 Thread_839846: Main Thread DispatchQueue_multiple + 1379 start (in Wirecast) + 52 [0x100a31074] + 1379 main (in Wirecast) + 1070 [0x100b3e16a] + 1379 eApp::Run(bool, zRecord*) (in libeva.dylib) + 779 [0x101033225] + 1379 eWindowManager_cocoa::MessageLoop() (in libeva.dylib) + 70 [0x101037932] + 1379 -[NSApplication run] (in AppKit) + 594 [0x7fff88cd2593] I can guess the number on the 1st (2nd?) on every row after + sign. It should be number of samples or how long a method/function take. According to MAN page for ‘sample’, it samples at every 1 msec. And http://stackoverflow.com/questions/10709577/spindump-analysis-instructions http://stackoverflow.com/questions/10709577/spindump-analysis-instructions says, it’s the number of samples. By looking at the numbers on children nodes, I guess so too. But is it really so? If there is a better mailing list for this kind of inquiry, please let me know. In the trace above, 1379 is the number of samples at that location. The total number of samples and the sampling rate should be listed at the top of the report: Duration:10.01s Steps: 1001 (10ms sampling interval) Everything else is a description of the instruction's location. Symbol name (in library name) + byte offset [absolute address]. A symbolicated trace may add source file and line numbers. If multiple samples hit the same symbol at different offsets (i.e. they were at different places in the same function) then they may be aggregated into a single line with multiple offsets listed. -- Greg Parker gpar...@apple.com Runtime Wrangler ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Official or correct explanation of numbers on the 1st column for every method/function call in process sample?
Ah.. I’m sorry. The sample rate should not be 6803/3, because the 6803 is just process number. The 1st line says just : Sampling process 6803 for 3 seconds with 1 millisecond of run time between samples So, sampling frequency is every 1 millisecond, and the whole sampling duration was 3 sec. Anyway.. Thank you very much for you explanation. JongAm Park On Mar 17, 2015, at 3:11 PM, Greg Parker gpar...@apple.com wrote: On Mar 17, 2015, at 1:52 PM, JongAm Park jongamp...@sbcglobal.net wrote: Hello, I know that questions on tools are not relevant for this cocoa-dev, but I couldn’t find any relevant mailing list for tools like ‘sample’ or sampling using Activity Monitor GUI tool. So, let me ask it here, because all Cocoa programmers use such tools whenever needed. I have a process sample like this. Call graph: 1379 Thread_839846: Main Thread DispatchQueue_multiple + 1379 start (in Wirecast) + 52 [0x100a31074] + 1379 main (in Wirecast) + 1070 [0x100b3e16a] + 1379 eApp::Run(bool, zRecord*) (in libeva.dylib) + 779 [0x101033225] + 1379 eWindowManager_cocoa::MessageLoop() (in libeva.dylib) + 70 [0x101037932] + 1379 -[NSApplication run] (in AppKit) + 594 [0x7fff88cd2593] I can guess the number on the 1st (2nd?) on every row after + sign. It should be number of samples or how long a method/function take. According to MAN page for ‘sample’, it samples at every 1 msec. And http://stackoverflow.com/questions/10709577/spindump-analysis-instructions http://stackoverflow.com/questions/10709577/spindump-analysis-instructions says, it’s the number of samples. By looking at the numbers on children nodes, I guess so too. But is it really so? If there is a better mailing list for this kind of inquiry, please let me know. In the trace above, 1379 is the number of samples at that location. The total number of samples and the sampling rate should be listed at the top of the report: Duration:10.01s Steps: 1001 (10ms sampling interval) Everything else is a description of the instruction's location. Symbol name (in library name) + byte offset [absolute address]. A symbolicated trace may add source file and line numbers. If multiple samples hit the same symbol at different offsets (i.e. they were at different places in the same function) then they may be aggregated into a single line with multiple offsets listed. -- Greg Parker gpar...@apple.com Runtime Wrangler ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
How to add a window to a window list(or open document list) on a dock tile menu?
Hello, all. It has been long time for me to write anything in this mailing list, but I prefer this than web based one Apple now pushes. Anyway.. I have some issue with “Window list” If a window is created, it’s added to a window list under the “Window” menu and its equivalent counter part on the Dock menu. However, in a project I work on nowadays, ( which is heavily customized on top of Cocoa and old Carbon ), it has a window list menu items under “Window” menu, but somehow there is no such thing on the Dock menu. It’s not document based app. (Well.. I mean it’s not based on NSDocument. We have our own mechanism for managing our in-house document type. ) I tried setExcludedFroWindowsMenu: of NSWindow to see if it has any effect on the Dock menu, but it didn’t. Is there anyway to have Dock menu contain the window list menu items? I searched Apple’s documents, but there looks to be no explicit way to remove/add window list. Thank you. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to add a window to a window list(or open document list) on a dock tile menu?
:) Thank you very much for your reply. I need the recent documents list. So, I will not remove it. I am still curious how the window list doesn’t appear on the dock menu of the interested app. Probably they removed Window menu from “menu bar”? I checked if a window is excluded from window list with isExcludedFromWindowsMenu:, but it returned false. So, windows I queried are in a window list. Anyway, yup! I’ll try with the delegation message you told me. Thank you. ;) On Jan 27, 2015, at 12:55 PM, Lee Ann Rucker lruc...@vmware.com wrote: -[NSApplicationDelegate applicationDockMenu:] You can customize everything except the recent documents; you get that for free and can't get rid of it - no, not even if the user clears recent documents from the main menu. On Jan 27, 2015, at 10:38 AM, JongAm Park jongamp...@sbcglobal.net wrote: Hello, all. It has been long time for me to write anything in this mailing list, but I prefer this than web based one Apple now pushes. Anyway.. I have some issue with “Window list” If a window is created, it’s added to a window list under the “Window” menu and its equivalent counter part on the Dock menu. However, in a project I work on nowadays, ( which is heavily customized on top of Cocoa and old Carbon ), it has a window list menu items under “Window” menu, but somehow there is no such thing on the Dock menu. It’s not document based app. (Well.. I mean it’s not based on NSDocument. We have our own mechanism for managing our in-house document type. ) I tried setExcludedFroWindowsMenu: of NSWindow to see if it has any effect on the Dock menu, but it didn’t. Is there anyway to have Dock menu contain the window list menu items? I searched Apple’s documents, but there looks to be no explicit way to remove/add window list. Thank you. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.apple.com_mailman_options_cocoa-2Ddev_lrucker-2540vmware.comd=AwIGaQc=Sqcl0Ez6M0X8aeM67LKIiDJAXVeAw-YihVMNtXt-uEsr=ie7S-J__EKnfyVOBV7-jV2rZ--p47O6vkyTklpDM3h4m=hjEqDZ8jEpHgyNJtfaA4FaxGdsZAsosDKscQglYgNj8s=8RSNVk4UJgxTxrQv7wfY3bFC1h_KbfGPw4gqQBO3jfce= This email sent to lruc...@vmware.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to add a window to a window list(or open document list) on a dock tile menu?
I solved my problem and would like to share how I did it. I’m working on a heavily customized app on top of Cocoa/Carbon. So, general paradigm of Cocoa and Carbon is partially applied : how to enable menu items, how to make windows, and so on. However, there is a link to Cooca at the bottom of our S/W architecture. It means that there was some missing stuff in terms of the Window list on a Dock menu. I found out that the Window list ( may called open document list ) is the same to those under Window menu bar item on a genuine Cocoa app (why not) It turned out that if NSApp.windowsMenu returns nil ( means there is no Windows menu associated with it ), when a new Window is created, it can’t be added to the “Windows list”. I played with a skeletal Cocoa app and tried to remove menu items from default Windows menu, deleted the Windows menu, replaced with other menu, etc. With Interface builder module, the title “Windows” plays significant role. Based on the name, Interface Builder looks to treat it as “Windows” menu and associate with NSApplication as such. Anyway, even without any menu items under the menu, it populated with new window names whenever a new window is created and displayed. So, in our own very customized code to generate our own menu bar and its sub items, I found out that we didn’t set “Window” menu as Windows menu of NSApp. Once I set it, it started to display on the Dock tile menu. Because we added window names manually to the menu, I worried if same window names may appear twice : one by our manual insertion/addition and the other by automatic addition of Cocoa when displaying an instance of NSWindow. However, it didn’t. Luckily our “Window” menu also had the window list at the end, not anymore in its middle. So, there was no further work required. Anyway, thank you for your hint. Although I asked about dock menu and I was so soaked with dock menu, but your mentioning of applicationDockMenu: gave me some idea, and started to think differently. :) (BTW, It can be better if Apple name the portion of Dock menu as Windows name list and mention that it’s linked to Windows menu’s window name list. Without it, yes.. we can guess. However, I first thought it as “Opened Document List” and looked up NSDocumentController. There I found addDocument:. It mentioned about “open document list”. So, I lost my direction there at first. But a small icon in front of Window list items gave me a clue. The icon was for “window” not “document”. So, I guessed that it may be called “current window list” instead of “open document list”. With your hint and such guess made me to look at “Windows” menu. :) Well.. it’s how I solved. If someone work on their own framework written on top of Cocoa and run into similar problem like mine, I hope he would be able to find a clue from this post. :) Happy coding~ JongAm Park On Jan 27, 2015, at 12:55 PM, Lee Ann Rucker lruc...@vmware.com wrote: -[NSApplicationDelegate applicationDockMenu:] You can customize everything except the recent documents; you get that for free and can't get rid of it - no, not even if the user clears recent documents from the main menu. On Jan 27, 2015, at 10:38 AM, JongAm Park jongamp...@sbcglobal.net wrote: Hello, all. It has been long time for me to write anything in this mailing list, but I prefer this than web based one Apple now pushes. Anyway.. I have some issue with “Window list” If a window is created, it’s added to a window list under the “Window” menu and its equivalent counter part on the Dock menu. However, in a project I work on nowadays, ( which is heavily customized on top of Cocoa and old Carbon ), it has a window list menu items under “Window” menu, but somehow there is no such thing on the Dock menu. It’s not document based app. (Well.. I mean it’s not based on NSDocument. We have our own mechanism for managing our in-house document type. ) I tried setExcludedFroWindowsMenu: of NSWindow to see if it has any effect on the Dock menu, but it didn’t. Is there anyway to have Dock menu contain the window list menu items? I searched Apple’s documents, but there looks to be no explicit way to remove/add window list. Thank you. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.apple.com_mailman_options_cocoa-2Ddev_lrucker-2540vmware.comd=AwIGaQc=Sqcl0Ez6M0X8aeM67LKIiDJAXVeAw-YihVMNtXt-uEsr=ie7S-J__EKnfyVOBV7-jV2rZ--p47O6vkyTklpDM3h4m=hjEqDZ8jEpHgyNJtfaA4FaxGdsZAsosDKscQglYgNj8s=8RSNVk4UJgxTxrQv7wfY3bFC1h_KbfGPw4gqQBO3jfce= This email sent to lruc...@vmware.com ___ Cocoa-dev mailing list (Cocoa-dev
[Q] Difference in terms of when it sense that it's rotated?
Hello, I noticed that iOS 5.x. has very strange problems in rotation especially in launching time. While an app is being launched, it presents a logo image inside of a UIImageView and presents a main GUI screen. It's always on landscape mode. What is weird with iOS 5 is that it works as intended on iOS 5 simulator, but on a real iOS 5 device ( with iOS 5.1.1 ), the rotation for displaying the main GUI is not applied at all. However, once it is out ouf the chain of code processed for launching, it works as expected. What I mean is that once the GUI is laid out ( wrongly at first ) and finished launching and if you click buttons on it and add a subview ( to a view of a root view) which has UI for the new screen and eventually go back to the wrongly rotated view by re-adding it to the root view, now the rotation is applied correctly. So, on a simulator, even the initial presentaiton of the main UI is done correctly. But on a real iOS 5.1.1 device, it doesn't. After googling, I found out that iOS 5 has many problems especially with its simulators. However, in this case the simulator looks to work more well than real one. On iOS 6, whether it's simulator or a real one, it works well. The project is bulit with iOS 6.0.1 and targeted for iOS 5.0.x to support that as minimal requirement. Any thought on this? Thank you. BTW, I have seen that many people asked question on iOS to this mailing list and Apple doesn't provide any mailing link for iOS specifically. Well, kind of understanding that, because whether it's Mac or iOS, they are basically Cocoa. Actually I noticed more iOS questions or discussion is going on here than ever. So, is it Ok to ask question on iOS even though this mailing list description still says The Cocoa Development list is for discussions regarding native Mac OS X application development using the Cocoa Frameworks:? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] a view is associated with more than one view controller?
Hello,
I'm having a problem while rebuilding old project which was made with iOS 3.x
SDK at first.
Currently I'm building it with iOS 6.0 SDK and can be targeted for 4.3.
There is a central controller, RootViewController.
And when the app is loaded, it creates an instance of UIImagePickerController.
And finally, it tries to assign the view of UIImagePickerController, i.e.
imagePickerController.view, to the RootViewController's view.
Brief code lines are like this.
if([UIImagePickerController
isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
self.camera = [[UIImagePickerController alloc] init];
[self.camera setSourceType:UIImagePickerControllerSourceTypeCamera];
self.camera.allowsEditing = NO;
self.camera.navigationBarHidden = YES;
self.camera.toolbarHidden = YES;
self.camera.wantsFullScreenLayout = YES;
...
self.view == self.camera.view; // This is where it throws the exception.
// self is RootViewController
The error message is this :
A view can only be associated with at most one view controller at a time! View
UILayoutContainerView: 0x1ddbee60; frame = (0 0; 320 480); autoresize = W+H;
layer = CALayer: 0x1ddbeed0 is associated with UIImagePickerController:
0x1dd510b0. Clear this association before associating this view with
RootViewController: 0x1dd32f20. : A view can only be associated with at most
one view controller at a time! View UILayoutContainerView: 0x1ddbee60; frame =
(0 0; 320 480); autoresize = W+H; layer = CALayer: 0x1ddbeed0 is associated
with UIImagePickerController: 0x1dd510b0. Clear this association before
associating this view with RootViewController: 0x1dd32f20.
The UILayoutContainerView: 0x1ddbee60 is self.camera.view.
According to this StackOverFlow page, its sounds like that it was possible to
assign a view controller's view to other controller's view with previous iOS
SDK, but looks to be changed recently.
Does Apple recommend other approach to achieve the same goal?
If anyone knows how to solve this problem, please show me your guidance.
Thank you.
JongAm Park
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Re: [Q] a view is associated with more than one view controller?
On 10/25/2012 7:05 AM, Julius Oklamcak wrote: If anyone knows how to solve this problem, please show me your guidance. From some work I did earlier this year for a client, UIImagePickerController needs to be presented modally or in a UIPopoverController. It also doesn't handle being a root view controller very well (window.rootViewController = imagePickerController Thanks for the information. I was off from iOS dev. for a while to focus more on Mac and Windows. However, I kept monitoring what were being added and changed in iOS SDK. What is embarrassing is that Apple started to push some guide line ( if we think of them positively ) or restriction ( if we think of them negatively ) and it broke things. For the specific line of code, I put in my original message, I think it was wrong to assign UIImagePickerController's view to other (Root) controller view at first. I think so, not because it was not possible to do, but because it is kind of against of idea that Apple introduced view controllers with and the gut feeling how Apple people wanted us to use it. Anyway, because presentModalViewController:animated is deprecated in iOS 6, i may need to use presetnViewControlle:animated:completion. However, I also think the target iOS device can have iOS 4.x still. So, I need to decide which one to sacrifice, the use of latest message or target audience who doesn't upgrade their iOS to iOS 5.0+ yet. or probably I can use some gestalt/introspection method to figure out branch into to identical code utilizing different messages. Without going the route of using the various AV Foundation APIs to implement your own camera controller class, the solution I used was to present the UIImagePickerController modally in the root view controller's -viewDidAppear: method (you could try in -viewWillAppear:). One thing I'm worry is that they customized the view so much that I have to rearchitect overall programming structure. The current code is in -videDidLoad. But it heavily depends on rootController.view = UIImagePickerController.view assignment. However, people just brought me this outsourced project because the company which was contracted for this project was departed from us a while ago. And they are saying it's urgent... I saw lots of s***dity in the source code, where they even didn't release object properly; they implemented -(id)init messages without calling its init of its super class; I would like to zip my mouth Probably I need to consider addChildViewController also, because of this line of explanation for view property in UIViewController. Each view controller object is the sole owner of its view. You must not associate the same view object with multiple view controller objects. The only exception to this rule is that a container view controller implementation may add this view as a subview in its own view hierarchy. Before adding the subview, the container must first call its |addChildViewController: http://developer.apple.com/library/ios/documentation/UIKit/Reference/UIViewController_Class/Reference/Reference.html#//apple_ref/occ/instm/UIViewController/addChildViewController:| method to create a parent-child relationship between the two view controller objects. Actually I tried it yesterday night, but it complaint that the view ( probably mean the view of UIImagePickerController ) doesn't support the orientation the app is running. I would like to read View controller guide line more calmly tonight... Thank you. Thank you for your help. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] a view is associated with more than one view controller?
Thank you, Baoming. I tried but it didn't work. Probably I need to chores around it more. I have a few things to do in mind. So, I will retry that. However, UIImagePickerController's view looks to be special as others said. Best, On 10/25/2012 12:53 AM, Baoming Tian wrote: Why not just add the camera view as sub view of the root ? from my iPhone ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] a view is associated with more than one view controller?
On 10/25/2012 7:18 AM, Roland King wrote: On 25 Oct, 2012, at 10:05 PM, Julius Oklamcak juli...@icodemonks.com mailto:juli...@icodemonks.com wrote: If anyone knows how to solve this problem, please show me your guidance. From some work I did earlier this year for a client, UIImagePickerController needs to be presented modally or in a UIPopoverController. It also doesn't handle being a root view controller very well (window.rootViewController = imagePickerController). Without going the route of using the various AV Foundation APIs to implement your own camera controller class, the solution I used was to present the UIImagePickerController modally in the root view controller's -viewDidAppear: method (you could try in -viewWillAppear:). That is all true - on top of that, after introducing view controller containment in iOS5 to give people a proper way of doing what was always not recommended, taking a view from ViewController B and slapping it into ViewController A, iOS 6 is finally strict about it. You just can't do this any more. That's good. :) I don't like people who just write code which just looks to work because their managers or people at asked-company-if-contracted don't know about programming. I have seen so many people in Windows and Mac, and now even in iPhone world who didn't understand paradigm of a framework and just write code without knowing that it violated the paradigm. When something doesn't abide by the paradigm, it may work now, but can break seriously soon. Also, it's highly possible that it is not even properly implemented. What I'm saying is just like this : a guy just implemnted 1+1 = 2 like : 1 + (uh... i don't know what to do ) + 2 + 3 - 3 - 1 (hmm.. it looks working.. ) = 1 However, welll... cruel world. I got such source code on my hand. If you want to mix views from different VCs on the screen, you now *must* use View Controller Containment (and that's the right thing to look for in the documentation). The advice above about UIImagePickerController is I believe also true, that thing really wants to be modal (I hope they change that one day). by using.. like.. addChildViewController: right? I found this explanation in Apple's document. ( view property in UIViewController class reference. ) Each view controller object is the sole owner of its view. You must not associate the same view object with multiple view controller objects. The only exception to this rule is that a container view controller implementation may add this view as a subview in its own view hierarchy. Before adding the subview, the container must first call its |addChildViewController: http://developer.apple.com/library/ios/documentation/UIKit/Reference/UIViewController_Class/Reference/Reference.html#//apple_ref/occ/instm/UIViewController/addChildViewController:| method to create a parent-child relationship between the two view controller objects. It sounds like that if I add UIImagePicker controller using addChildViewController:, it's possible to set the view of a root view controller to the view of UIImagePicker. but it didn't work last night. Probably I missed something. I would like to read their document more. There are a few things I would like to try (again) : 1. |presentViewController:animated:completion: http://developer.apple.com/library/ios/documentation/UIKit/Reference/UIViewController_Class/Reference/Reference.html#//apple_ref/occ/instm/UIViewController/presentViewController:animated:completion: 2. addChildViewController: What do you think about it? I'm switching to Windows mode by launching Visual Studio... :( Thank you. JongAm Park | ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] Cocoa Binding for filters applied to CALayer
Hello,
I'm trying to refresh my knowledge on Core Animation, and reading Addison
Wesley's Simplified Animation.
I created a new project from the scratch to mimic what is explained in Chapter
6, which has a NSView on a main window.
On that instance of NSView, a CALayer is added and it is the layer where an
image is displayed. Also a CIFilter is applied to that layer.
On the right of the NSView instance, there are a few slider controls to change
parameters of CIFilters.
Here is a method/message for creating filters.
@synthesize imageLayer;
- (NSArray *)filters
{
CIFilter *blurFilter = [CIFilter filterWithName:@CIGaussianBlur];
[blurFilter setDefaults];
[blurFilter setValue:[NSNumber numberWithFloat:1.0]
forKey:@inputRadius];
[blurFilter setName:@blur];
// CIFilter *hueFilter = [CIFilter filterWithName:@CIHueAdjust];
// [hueFilter setDefaults];
// [hueFilter setValue:[NSNumber numberWithFloat:0.0f]
forKey:@inputAngle];
// [hueFilter setName:@hue];
//
// CIFilter *colorFilter = [CIFilter filterWithName:@CIColorControls];
// [colorFilter setDefaults];
// [colorFilter setName:@color];
// return [NSArray arrayWithObjects:blurFilter, hueFilter, colorFilter,
nil];
// return [NSArray arrayWithObjects:blurFilter, hueFilter, nil];
return [NSArray arrayWithObject:blurFilter];
}
The filters are added to the instance of CALayer using setFilters:.
And a slider control, for example, is bound to
imageLayer.filters.blur.inputRadius using the binding property in IB resource
editing mode.
Once it is bound, it complaints this error.
*** Terminating app due to uncaught exception 'NSInvalidArgumentException',
reason: '[__NSArrayI 0x10340 addObserver:forKeyPath:options:context:] is
not supported. Key path: blur.inputRadius'
What is really funny is that AW's sample project for that are the same, and it
doesn't complain that. I checked settings for target, project, xib version
number, whether to use ARC or not just in case, and so on.
Somehow, it doesn't seem to recognize the added filter, blur. The IB module
suggests imageLayer.filters. However it doesn't do so after that. However, in
the AW's sample project, it's the same. So, I don't think it is the problem.
The AW's project was created when there was no ARC. So, I even changed the
project setting to use ARC and others.
So, I don't think that the filter is released somehow in my own project.
So, can I ask what can be wrong with my project?
Thank you.
P.S. Personally I don't use Cocoa Binding much. I did use when it was
introduced. But it turned out that it's very hard to debug if there is
something wrong. I turned on NSBindingDebugLogLevel to 1 also. But it doesn't
tell much about this problem.
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Re: [Q] Cocoa Binding for filters applied to CALayer
Hmm.. I found an interesting case here.
I tried to add this message for a newly created button to set the inputRadius
in code.
- (IBAction)blurIt:(id)sender
{
[self setValue:@10.0f
forKeyPath:@imageLayer.filters.blur.inputRadius];
}
Then it works. It's very interesting that the binding property using IB
resource editing doesn't work...
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Re: [Q] Cocoa Binding for filters applied to CALayer (JongAm Park)
I found somewhat interesting behavior. When it doesn't use property to set an instance of CALayer like this : m_imageLayer = [CALayer layer]; instead of self.imageLayer = [CALayer layer]; it doesn't cause the problem anymore. Instead of using property, I tried to use a setter and a getter methods for being sure like : - (void)setImageLayer:(CALayer *)layer; - (CALayer *)imageLayer; [self setImageLayer:[CALayer layer]]; Then it presented the same problem. So, somehow CALayer looks to be assigned directly instead of using properties. Once assigned directly, it doesn't matter whether to set filter by [self.imageLayer setFilter:...] or [m_imageLayer setFilter...] Is there any reason why it works like that? Thank you. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Cocoa-dev Digest, Vol 9, Issue 176
Yes. That is exactly the case why I tried to find a better and elegant solution. I'm sorry that I didn't read digest version of Cocoa-dev email yesterday. To me it was a busy day yesterday and when I went back home, I literally went to bed ( after writing one email. ) So, I missed your great post. Some people would say we don't need to clean up at that moment, but generally speaking there can be a necessity of cleaning up, which is not only about releasing memory ( well, garbage collector helps here a lot. ) but also closing network ports, or serial ports. ( Mac and iOS devices don't have serial ports, but I put it here as an example. ) Back in 1990's I noticed that if a terminal program on one computer, i.e. my PowerBook 140, Mac LC, IBM-compatible PC 386 processor machine I assembled, quits without closing a port, it or the program on the other sides could hang. Modern OS or language RunTimes seem to handle those well compared how things were in late 80's and early 90s. But still we want to make sure things are to be cleaned up properly, right? But as with Cocoa and .NET, I noticed that threading model evolved to have one main thread ( which is responsible for UI ) take the whole role in managing UI, while other threads generally take care of more dedicated chores which don't need to handle UI widgets. But because sometimes it will be required, Apple provides performSelectorOnMainThread() and MS provides Invoke() mechanism. However, this left the problem I noticed and you described here. MS seems to have its RunTime handles things sufficiently well. If I don't assign a thread variable to null ( to prevent calling a method of a null object like myThread.Join() or myTread.DoCleanUp() or whatever, the C# .NET runtime doesn't raise an exception for accessing a member function of a non-existing object. Also, it seems to close a serial port. However, this may not ensure something, like proper hand-off for the opponent on the other side of communication channel. Or the opponent codes can be written to handle a case when its opponent doesn't respond anything. But.. anyway point here is.. yes.. as we can see it, it can be a problem under some situation. Anyway, I will go through this mailing list digest email when I go back home. I don't want to miss others' great insight posted here. :) Have a nice day, and I'm sorry for people I didn't reply to yet.. JongAm Park On 3/13/2012 5:00 PM, cocoa-dev-requ...@lists.apple.com wrote: Message: 11 Date: Tue, 13 Mar 2012 16:49:33 -0700 From: Jay Reynolds Freemanjay_reynolds_free...@mac.com To: Cocoa-Dev (Apple)cocoa-dev@lists.apple.com Subject: Re: [Q] Why is the threading and UI updating designed to be done only on a main thread? Message-ID:7de60fad-f19f-4b03-aff9-88a781420...@mac.com Content-Type: text/plain; CHARSET=US-ASCII Notwithstanding the good advice about parallel programming given earlier in this thread, there are still possible problems. By way of illustration, a year or two ago I submitted a bug report (#8338166) about a problem of this sort in iOS. I will describe the problem here. (I am not looking for a workaround, I have one -- here I am just providing a real example from the past that may be of interest.) Consider UIApplicationDelegate method applicationWillTerminate:: Multithreaded applications may not be able to use it to shut down, because of the possibility of deadlock in communications between the main thread and other application threads. Suppose we have a multithreaded iOS application whose non-main threads occasionally use performSelectorOnMainThread:withObject:waitUntilDone: to interact with the main thread. Now suppose the following things happen, in this order: 1) applicationWillTerminate: is called (by the OS, on the main thread). 2) Immediately thereafter, before applicationWillTerminate has completed, some other thread calls performSelectorOnMainThread:withObject:waitUntilDone:, with waitUntilDone:'s value set to YES. 3) Suppose the application needs to get the other thread to do some shut-down work -- the kind of thing that is supposed to happen in applicationWillTerminate: 4) We now have a problem with deadlock. The application*cannot* communicate with the other thread from inside applicationWillTerminate:, because the other thread is waiting for performSelector ... to run, and that won't happen until applicationWillTerminate: has itself returned. And if the application posts an event to the other thread and then returns from applicationWillTerminate:, it is highly likely that the OS will terminate the application before the other thread has had a chance to act. So there is no reliable way to get the other thread to do its cleanup. The point here is that since applicationWillTerminate: is called asynchronously from the point of view of the app, the app can*NEVER* communicate with any thread that may have to do clean-up work, by any communication
Re: [Q] Why is the threading and UI updating designed to be done only on a main thread?
Umm.. Mr Lambert.. It's OK. I'm not offended. If I confess, I felt a little uncomfortable, because I understand pretty well this kind of stuff but he put an emphasis by saying mess. But we are talking in a text based media which doesn't convey facial expression or tone of voice. So, based on my experience with chatting programs, the speaker may not have any intention to offend. So, I'm a kind of neutral. Probably it was his style of talking but.. you know.. it didn't sound harsh in a jungle with full of male creatures. :) I appreciate your concern though. :) JongAm Park On 3/14/2012 9:07 AM, Brian Lambert wrote: Scott, it's not that any one thing is hard to get correct. Arrogantly calling someone stupid, as you've done here, doesn't help. It's the subtlety of getting *everything* correct. A GUI system, and the programs that are layered on top of it, embody a great deal of complexity. Allowing multiple threads to operate on the GUI causes this complexity to permute. On Wed, Mar 14, 2012 at 6:43 AM, Scott Ribe scott_r...@elevated-dev.com mailto:scott_r...@elevated-dev.com wrote: On Mar 13, 2012, at 3:09 PM, JongAm Park wrote: In other words, the thread function may want to update UI like inserting a log message to a text field on a window and thus asking main thread to do so, and main thread is waiting to acquire a lock or waiting using Join, then either the main thread and the other thread can't progress. Ouch. If you think that's a problem, then trust me, you would really make a mess with multiple UI threads. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] Why is the threading and UI updating designed to be done only on a main thread?
Umm.. Mr Lambert.. It's OK. I'm not offended. If I confess, I felt a little uncomfortable, because I understand pretty well this kind of stuff but he put an emphasis by saying mess. But we are talking in a text based media which doesn't convey facial expression or tone of voice. So, based on my experience with chatting programs, the speaker may not have any intention to offend. So, I'm a kind of neutral. Probably it was his style of talking but.. you know.. it didn't sound harsh in a jungle with full of male creatures. :) I appreciate your concern though. :) JongAm Park P.S. I hit a reply button instead of reply all habitually. So, to provide continuity to the mailing list, I reply here again. :) On 3/14/2012 9:17 AM, Brian Lambert wrote: Ouch. If you think that's a problem, then trust me, you would really make a mess with multiple UI threads. That isn't calling someone stupid? Really? Ah, OK. My inference processor must be in error. On Wed, Mar 14, 2012 at 9:14 AM, Scott Ribe scott_r...@elevated-dev.com mailto:scott_r...@elevated-dev.com wrote: On Mar 14, 2012, at 10:07 AM, Brian Lambert wrote: Scott, it's not that any one thing is hard to get correct. Arrogantly calling someone stupid, as you've done here, doesn't help. I didn't call anyone stupid--that's your inference, not mine. I did point out that someone who thinks he can solve a thread deadlock problem by throwing more threads at it is really headed in the wrong direction. -- Scott Ribe scott_r...@elevated-dev.com mailto:scott_r...@elevated-dev.com http://www.elevated-dev.com/ (303) 722-0567 tel:%28303%29%20722-0567 voice ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] Why is the threading and UI updating designed to be done only on a main thread?
On 3/14/2012 9:14 AM, Scott Ribe wrote: On Mar 14, 2012, at 10:07 AM, Brian Lambert wrote: Scott, it's not that any one thing is hard to get correct. Arrogantly calling someone stupid, as you've done here, doesn't help. I didn't call anyone stupid--that's your inference, not mine. I did point out that someone who thinks he can solve a thread deadlock problem by throwing more threads at it is really headed in the wrong direction. No, that is not my idea. My idea is always to reduce dependency on threads and best if it can be removed altogether. I think you didn't understand my initial question and the extra stuff I put there. It's Ok though. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] Why is the threading and UI updating designed to be done only on a main thread?
On 3/14/2012 9:19 AM, Wade Tregaskis wrote: Threads themselves are very useful; multiple threads taking user input and updating the display to the user are not really useful, and the request for them more often than not betrays a lack of understanding of threading. So you think it'd be great it every GUI app shared the same serial queue for all interactivity and drawing? Boy do I have a Mac Classic to sell you... The reality is of course more of a compromise. It's quite common to do drawing across multiple threads, though you still synchronise the final blits around a single thread (i.e. the main thread). Likewise even event handling is often effectively multi-threaded, because you dispatch from the main thread to a variety of tasks, queues or worker threads. Having a UI framework that either offloads some of this for you can actually be very useful. It would also be closer to the user experience we're trying to portray - for example, that each document on an app is totally independent. Having all documents hang because one is having issues (Safari I'm looking at you, you evil bastard) completely breaks that illusion. That's good point. One of the reason in the 90's those were allowed was to achieve the goal you are concerned about, I think. From sometime in 2000's, it seems to me that philosophy behind language design and framework design were changed to be like current model. Because, as you said, there can be some situation where it is a lot easier and better to allow accessing GUI widgets from any threads, we can feel sorry about it, but if language and framework designers changed their mind to design like how they are now, there should be a workaround for this kind of case. I guess that allowing it will make distributing work unit, i.e. in the form of blocks or lamda functions, difficult because there will be many issues. So, I understand that and as Mr. Alfke said, there did exist some difficulties in multithreaded programming. So, it is trade-off between two conflicting idea. Currently reducing complexity of maintaining and architecting thread-based S/W architecture looks to be the main virtue. In the case of the Safari thing, if WebKit or Apple developers create each window as processes rather than threads, they can reduce dependency between documents or windows more than using threading, although data sharing is still needed between processes. I remember sometime during 1990's there were debate between process model vs. thread model. Usually Unix society preferred process model, because it is safer and death of one software processing unit doesn't make the whole program dies. However, somehow thread model which were more popular in PC world got the popularity more. ( thanks to its light-weight? and.. for me, it was due to less confusing model for threading. ) Whatever the history is, we need to find some workaround when we reach a point where one model is not as great as others. :) JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] Why is the threading and UI updating designed to be done only on a main thread?
Well, Mr. Ribe. I'm sorry but I'm not inexperience with this domain. I'm not trying to solve this problem with more complicated model. I was to find out any rationale, I may not think of, behind the new model, and a well-established code pattern to solve it. JongAm Park On 3/14/2012 9:23 AM, Scott Ribe wrote: On Mar 14, 2012, at 10:17 AM, Brian Lambert wrote: Ouch. If you think that's a problem, then trust me, you would really make a mess with multiple UI threads. That isn't calling someone stupid? Really? No, it's calling someone inexperienced with the domain and unprepared to deal with a problem by pursuing a more complex solution. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] Why is the threading and UI updating designed to be done only on a main thread?
Yes. I agree. That is one of the approach I'm thinking of when I handled similar issue with QuickTime. Thanks, On 3/14/2012 10:05 AM, Gary L. Wade wrote: On Mar 13, 2012, at 2:09 PM, JongAm Parkjongamp...@sbcglobal.net wrote: In other words, the thread function may want to update UI like inserting a log message to a text field on a window and thus asking main thread to do so, and main thread is waiting to acquire a lock or waiting using Join, then either the main thread and the other thread can't progress. To solve your thinking on this matter, conceptualize the background thread as a (M)odel object, the main thread a (V)iew object, and possibly an NSMutableArray of NSStrings each having an individual log message being a (C)ontroller object. By breaking your logic up accordingly, it should be more obvious why things are the way they are. A simple way to update the UI is to add a timer to your main thread that checks to see if the controller object has been changed; if so, it can update the UI. To accommodate a full UI thread and fit within a user's visual update time, a time interval of 1/120 second should be fine. Naturally, you'll want to lock the controller object while being updated by the model or being (quickly) read by the view. You don't want your background thread wasting time waiting on the user to see its data; let it keep working and let the main thread check for updates when it can. -- Gary L. Wade (Sent from my iPhone) http://www.garywade.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] Why is the threading and UI updating designed to be done only on a main thread?
Well, I'm sorry if I confused you. BTW, common advice to avoid threading doesn't mean that threading should not be used. Just like salt, if it is used for right occasion, it is very good. However, when there are another way not to use thread but just to use threading because it can be used is not right. I think that is the meaning of common advice to avoid threading. So is Necessary Evil. I saw this expression in one of Microsoft's Windows Programming book in early 90's. :) On 3/14/2012 10:25 AM, Scott Ribe wrote: When you said just like threading itself it seemed to me that you were echoing common advice to avoid threading, and I don't necessarily agree with that because threading can be very useful and I use it extensively. I guess I would agree with advice to always consider carefully before going to multi (or more) threads. On Mar 14, 2012, at 11:09 AM, JongAm Park wrote: Well.. Yes. I understand what you mean. I just added the threading stuff in the discussion. Probably it is due to my English? I thought just like... could serve to express my understanding of your concern for UI main thread and other threads and just provided analogous thing. ( Arr.. my English.. ) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] Why is the threading and UI updating designed to be done only on a main thread?
On 3/14/2012 10:27 AM, Scott Ribe wrote: On Mar 14, 2012, at 11:23 AM, JongAm Park wrote: it didn't sound harsh in a jungle with full of male creatures. LOL! And you said your English was not so good. That was great! Well, I was not born in English-speaking country. So, sometimes my English can sound (very) abnormal and sometimes doesn't follow your culture, etc. So, it's possible that I don't catch your idea or doesn't express my idea culturally correctly. I apologize if I made you feel bad. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] Why is the threading and UI updating designed to be done only on a main thread?
Hello, While doing projects with Cocoa and Objective-C, I have always thought that allowing UI update only on main thread was a weak point of Cocoa/Objective-C. Especially, when gracefully terminating threads which would be better update some UI stuff and if main thread is required to wait until those threads finishes for clean exit, it can cause dead lock condition. In other words, the thread function may want to update UI like inserting a log message to a text field on a window and thus asking main thread to do so, and main thread is waiting to acquire a lock or waiting using Join, then either the main thread and the other thread can't progress. But, I also noticed the same pattern with C# .NET. Unlike Win32/MFC and like Objective-C/Cocoa, it also asks a main thread to update UI widgets. Is there any reason to design threading and UI update model like this? At first I thought it was due to somehow Obj-C/Cocoa sticks to some old model, but C# .NET is fairly new architecture. They could have avoided it if doing so was better. So, I guess there must be some reason behind it. Can anyone explain the rationale behind it? Also, is there a way to gracefully terminate an app by quitting threads and main thread? Thanks, JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] loadView doesn't return?
Hello,
I tried to use AV Foundation's playback capability.
So, by following AV Foundation Programming Guideline, it wrote codes for Mac. (
The document is written for iOS. )
Also, I looked up View Controller sample codes and AnimatedTableView.
What is strange is that it doesn't return after loadView was called in my
testing project, although it does in those sample codes.
I didn't find any semantic difference yet.
This is from my sample codes :
An app delegate class :
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
// Insert code here to initialize your application
NSLog( @AppDelegate applicationDidFinishLaunching );
[_placeholderView addSubview:_viewController.view]; = calls loadView
of a child class of NSViewController
[_viewController.view setFrame:_placeholderView.frame];
[_viewController setRepresentedObject:[NSNumber
numberWithUnsignedLong:[[_viewController.view subviews] count]]];
}
The child class of NSViewController
- (void)loadView
{
[self viewWillLoad];
[super loadView]; = doesn't return
[self viewDidLoad];
}
Does anyone know why the loadView doesn't return?
Can you spare me your idea?
Thank you.
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Re: [Q] loadView doesn't return?
It turned out that it didn't like to instantiate an NSViewControl class in its
xib.
So, instead, I created it in the code and it made loadView returns.
However, I still have some problems.
Although audio is played, video is not played.
So, I changed its view class for setting player like this ( by refering
ViewController sample codes )
- (void) setPlayer:(AVPlayer *)player
{
// [(AVPlayerLayer *)[self layer] setPlayer:player];
AVPlayerLayer *playerLayer = [AVPlayerLayer
playerLayerWithPlayer:player];
[playerLayer setFrame:[self.layer bounds]];
[playerLayer setAutoresizingMask:(kCALayerWidthSizable |
kCALayerHeightSizable)];
[self setLayer:playerLayer];
}
However, it still doesn't display any video frame.
Any ideas?
FYI, This is how it looks in ViewController sample codes :
Thank you.
- (void)awakeFromNib
{
NSString* moviePathStr = [[NSBundle mainBundle] pathForResource:@adam
ofType:@mov];
player = [[AVPlayer alloc] init];
AVURLAsset *file = [AVURLAsset assetWithURL:[NSURL
fileURLWithPath:moviePathStr isDirectory:NO]];
[file loadValuesAsynchronouslyForKeys:nil completionHandler:^(void) {
// The asset invokes its completion handler on an arbitrary
queue when loading is complete.
// Because we want to access our AVPlayer in our ensuing
set-up, we must dispatch our handler to the main queue.
dispatch_async(dispatch_get_main_queue(), ^(void) {
// Create an AVPlayerLayer and add it to the player
view if there is video, but hide it until it's ready for display
AVPlayerLayer *newPlayerLayer = [AVPlayerLayer
playerLayerWithPlayer:player];
[newPlayerLayer setFrame:[[self.view layer] bounds]];
[newPlayerLayer setAutoresizingMask:kCALayerWidthSizable |
kCALayerHeightSizable];
[[self.view layer] addSublayer:newPlayerLayer];
// Create a new AVPlayerItem and make it our player's current item.
AVPlayerItem *playerItem = [AVPlayerItem playerItemWithAsset:file];
[player replaceCurrentItemWithPlayerItem:playerItem];
playingForward = YES;
[[NSNotificationCenter defaultCenter]
addObserverForName:AVPlayerItemDidPlayToEndTimeNotification object:playerItem
queue:nil usingBlock:^(NSNotification *note) {
if(playingForward) {
[player
seekToTime:CMTimeMultiplyByFloat64(playerItem.duration, 0.99f)];
[player play];
player.rate = -1;
playingForward = NO;
} else {
[player seekToTime:kCMTimeZero];
[player play];
player.rate = 1;
playingForward = YES;
}
}];
[player play];
[player release];
});
}];
}
On Nov 4, 2011, at 9:46 AM, JongAm Park wrote:
Hello,
I tried to use AV Foundation's playback capability.
So, by following AV Foundation Programming Guideline, it wrote codes for Mac.
( The document is written for iOS. )
Also, I looked up View Controller sample codes and AnimatedTableView.
What is strange is that it doesn't return after loadView was called in my
testing project, although it does in those sample codes.
I didn't find any semantic difference yet.
This is from my sample codes :
An app delegate class :
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
// Insert code here to initialize your application
NSLog( @AppDelegate applicationDidFinishLaunching );
[_placeholderView addSubview:_viewController.view]; = calls loadView
of a child class of NSViewController
[_viewController.view setFrame:_placeholderView.frame];
[_viewController setRepresentedObject:[NSNumber
numberWithUnsignedLong:[[_viewController.view subviews] count]]];
}
The child class of NSViewController
- (void)loadView
{
[self viewWillLoad];
[super loadView]; = doesn't return
[self viewDidLoad];
}
Does anyone know why the loadView doesn't return?
Can you spare me your idea?
Thank you.
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[Q] how to tell NSNotificationCenter to send posted noti?
Hello, I have this kind of code. For NSComboBox, I defined to messages : 1. selectionDidChange 2. selectionIsChanging When a user selects other item in a combo box ( for containing list of tasks ) after changing the current one, I would like to have selectionIsChanging saves the new task info, and switch to the new task in selectionDidChange. However, when a modal dialog box is displayed in a message called in selectionIsChanging, the selectionDidChange is not called after things are done in selectionIsChanging. However, strangely if I click on other widgets like NSTableView, it suddenly sends the notification to selectionDidChange at that moment. Is there a way to enforce sent NSComboBoxSelectionDidChangeNotification notification delivered to selectionDidChagne notification message I defined? Thanks, JongAm Park___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] Handling cancel or stop button for NSProgressIndicator and on-going task
Hello, I wrote codes to processing images on a second thread and the main thread displays and handles progress dialog box. Because it is not possible to create a UI thread according to Cocoa framework, I had the main thread process the progress dialog box, while a second thread process images. However, a problem occurred when I decided to create QuickTime movie files with the processed images on the second thread. It turned out that QuickTime movie can't be created on a second thread, which is not a main thread. An uncaught exception was raised QTMovie_QuickTime class must be initialized on the main thread. *** Terminating app due to uncaught exception 'QTMovieInitializedOnWrongThread', reason: 'QTMovie_QuickTime class must be initialized on the main thread.' Then, is there any code pattern or example to handle progress dialog and time consuming tasks in a main thread without blocking user interaction? Or a solution doesn't need to be confined in that model. If it can utilize a second thread, it is better. Can anyone share his/her idea with me? Thank you. JongAm Park___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] Handling cancel or stop button for NSProgressIndicator and on-going task
Oh. Thank you for the information. I would like to make this message short because this is Cocoa mailing list not QuicTime mailing list. ( The topic was changed from Cocoa related question to QT one. ) BTW, I think I can create QTMovie in my case : This is from Tech Note TN2138 / Using QTMovie objects on background threads? (1) allocate all QTMovie objects on the main thread. The reason for this is quite simple: a QTMovie is always associated with a movie controller component instance, and currently no movie controller components are thread-safe. While a non-nil QTMovie can indeed be created on a background thread, the associated movie controller will always be NULL. This by itself is not fatal; many operations can be performed on a QTMovie object that has been initialized on a background thread. But certain operations will not work correctly, including most all of the notifications and even asynchronous movie-loading. That's why allocating a QTMovie on a background thread is not advised. / Thank you. JongAm Park On Sep 1, 2011, at 11:15 AM, Robert Martin wrote: No - creating the QT Movie must happen on the main thread - but after it's created, you can pass it off to secondary threads for processing… Rob On Sep 1, 2011, at 1:13 PM, JongAm Park wrote: Hmmm.. probably.. enterQTKitOnThread allows to create and initialize QTMovie objects on threads? On Sep 1, 2011, at 9:33 AM, JongAm Park wrote: Hello, I wrote codes to processing images on a second thread and the main thread displays and handles progress dialog box. Because it is not possible to create a UI thread according to Cocoa framework, I had the main thread process the progress dialog box, while a second thread process images. However, a problem occurred when I decided to create QuickTime movie files with the processed images on the second thread. It turned out that QuickTime movie can't be created on a second thread, which is not a main thread. An uncaught exception was raised QTMovie_QuickTime class must be initialized on the main thread. *** Terminating app due to uncaught exception 'QTMovieInitializedOnWrongThread', reason: 'QTMovie_QuickTime class must be initialized on the main thread.' Then, is there any code pattern or example to handle progress dialog and time consuming tasks in a main thread without blocking user interaction? Or a solution doesn't need to be confined in that model. If it can utilize a second thread, it is better. Can anyone share his/her idea with me? Thank you. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/robmartin%40frontiernet.net This email sent to robmar...@frontiernet.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] including omp.h?
It didn't. That is why I asked. Thank you. On Aug 6, 2011, at 1:31 AM, Marcus Karlsson wrote: --On July 31, 2011 4:49:34 PM -0700 JongAm Park jongamp...@sbcglobal.net wrote: Hello, Because gcc now supports OpenMP, we can use pragmas for OpenMP without doing any special steps except for setting Enable OpenMP and - fopenmp. However, when I tried to use OpenMP functions like : int omp_get_max_threads(void) omp.h should be included. However the location of omp.h is not /usr/inlcude, /usr/local/ include ( if any ) etc. It was under /usr/lib/gcc/i686-apple-darwin10/4.2.1/include/omp.h /usr/lib/gcc/powerpc-apple-darwin10/4.2.1/include/omp.h /usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin10/4.2.1/include/omp.h However, as you can see, they are under /usr/lib. It means that Apple or GCC people wanted to hide the include directory , i.e. lib/gcc/i686-apple-darwin10/4.2.1/include for example, under a specific compiler's folder under /usr/lib. So, although it would be possible to set a header path, but to make the compiler choose appropriate one ( as you can see, those three are for different gcc versions, intel, powerpc and llvm-gcc ), I believe there should be some mechanism to include them in directory-path-free way. Is there any such way to include the omp.h? Or should their include path set just like other header path? The reason why the header file is located in a per-compiler directory is that OpenMP has to be implemented by the compiler itself. That way, omp.h may change from compiler to compiler. It will also assure that an error is generated if OpenMP is not supported. In general you shouldn't have to deal with where exactly the file is located. Just include omp.h and give the compiler the -fopenmp option. In Xcode setting Enable OpenMP Support should be sufficient. The compiler will find the correct header file. Marcus ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] including omp.h?
Hello, Because gcc now supports OpenMP, we can use pragmas for OpenMP without doing any special steps except for setting Enable OpenMP and -fopenmp. However, when I tried to use OpenMP functions like : int omp_get_max_threads(void) omp.h should be included. However the location of omp.h is not /usr/inlcude, /usr/local/include ( if any ) etc. It was under /usr/lib/gcc/i686-apple-darwin10/4.2.1/include/omp.h /usr/lib/gcc/powerpc-apple-darwin10/4.2.1/include/omp.h /usr/llvm-gcc-4.2/lib/gcc/i686-apple-darwin10/4.2.1/include/omp.h However, as you can see, they are under /usr/lib. It means that Apple or GCC people wanted to hide the include directory , i.e. lib/gcc/i686-apple-darwin10/4.2.1/include for example, under a specific compiler's folder under /usr/lib. So, although it would be possible to set a header path, but to make the compiler choose appropriate one ( as you can see, those three are for different gcc versions, intel, powerpc and llvm-gcc ), I believe there should be some mechanism to include them in directory-path-free way. Is there any such way to include the omp.h? Or should their include path set just like other header path? Thank you. JongAm Park___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] calling OpenMP functions in a thread function for NSThread?
Hello, I'm using a GraphicsMagick library in my project. However, there I found a very interesting behavior. If I create an instance of Magick::Image in a normal method, it works OK. However, if it is implemented in a thread function, it crashes when it calls omp_get_max_threads(). I tried these : 1. Declare a pointer to Magick::Image in a class definition and created it dynamically using new when I needed it in a thread method. = When it is being created, it reaches where omp_get_max_threads() is called, and it crashes saying EXC_BAD_ACCESS. 2. Declare an instance of Magick::Image in a thread function/method = Same crash 3. Declare the instance of Magick::Image as a global variable and try to use it in a thread function. = It crashes when reading a file like image.read( file_name ). Where it crashes is the same to the case 1. So, I thought it could be due to stack size. So, I increased the stack size for the thread, but it did'nt solve the problem. is there a problem in calling OpenMP functions in a thread function? Thank you. JongAm Park___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [GM-help] [Q] calling OpenMP functions in a thread function for NSThread?
On Jul 29, 2011, at 2:03 PM, Bob Friesenhahn wrote: On Fri, 29 Jul 2011, JongAm Park wrote: is there a problem in calling OpenMP functions in a thread function? Possibly there is, however, I recall that your main program uses Objective C. Perhaps the Objective C runtime does not properly initialize with OpenMP? OpenMP does not provide any way to explicitly initialize it. Bob Thanks for your reply. Right,there is no function like InitializeOpenMP(), which should be called at the beginning. I set the project to use OpenMP, and if it is just declared statically like : Magick::Image myImage; in a normal method, there is no problem. Only when they are either created or accessed in a thread function, it causes the problem. Apple's GCC has support for OpenMP and it can be turned on/off from a project setting, and I turned it on. The last time I worked with OpenMP was about 3~5 years ago, and at that moment, there was no problem. Let me do some more experiment. Maybe current version of GCC/LLVM is broken. ( I tested with GCC, LLVM-GCC, LLVM already. ) Thanks again, ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Does anyone else dislike Xcode 4?
I don't know how this thread was started but, yeah, I don't like the Xcode 4. The reason is : - Requires too much scree real-estate Also, waste of screen real-estate - Different shortcut from those of Xcode 3 - Useless tool bar - Not flexible assistant editor Simple split view is better - Still lots of bugs Annoying bugs : [Bug 1] I reported this yesterday, but try to put an NSPathControl on an instance of NSWindow ( resource editor ) Make sure if your project is to be built for 10.6, for example. It will throw an error message saying that NSPathControl and NSPathControl cell are not available in Mac OS X prior to 10.5 [Bug 2] Prints out many Warning message saying that this and that property of widgets are not supported in Mac OS X prior to 10.5. Again, just like the Bug 1 case, the project is not built for pre-10.5 [Bug 3] Lots of memory usage - Just open Xcode 4.2, for example. Don't use Xcode 4 and just leave it as it is. - It will start to use lots of memory ( thus eats more HDD space due to increase of VM size or swap files. ) ( Is this because Xcode provide more features? I don't think so. ) [Bug 4] Error/Warning of previous built remains there sometimes. So, although it says Successfully built, it also shows red/yellow error/warning message. = this confuses a lot. [Enhancement Required] Use of contextual menu more wisely : to reveal the actual name of each project settings, contextual menu works better. I didn't understand where the feature was gone, and found under Editor menu. ( Why is it under Editor menu? ) Instead of using keyboard combination, it is better to use contextual menu to open a file into a new window/tab etc. Providing keyboard combination will work for some people, but also providing contextual menu for them will make things a lot easier How the search result is laid out Search result are source lines. To put those on the left most pane is not good idea. It is better to be laid out horizontally rather than vertically. Confined panes of debuggers Even Visual Studio 2010 allows users to detach panes to utilize multiple window or bigger window more well. I pointed the weak point of previous Visual Studio was MainFrame confined panes and children windows. Compared to that Xcode 3 was much better. I know how the initial and Xcode 2 was bad about user configuration. Even Project Builder was very confusing. However, Xcode 3 was very nice. Probably MS people acknowledged their shortcomings. But Xcode 4 went to the past instead of the future. Even though you can make one window filled with debug panes only, it is inconvenient to make existing window that way and open another window for source code, for example. It is much better to detach panes from existing one, if they really want to push one window approach. However, my point is why they give up already working, better approach delivered by Xcode 3? To people who uses All-in-one configuration only, they would think that Xcode 4 is same to Xcode 3!. But.. no. I have used its compact layout more, because it was more flexible especially when I needed to work with multiple projects. To name a few I have liked Xcode ( pre Xcode 4 ). I'm a long time Windows programmer while at the same time a Mac programmer. So, I have enough knowledge to compare the both. I really want Apple to make Xcode 4 make better. However, I also notice that there are many people who just like Xcode 4 because Apple made it. I don't like that kind of attitude. My 2 cents... JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Does anyone else dislike Xcode 4?
Oh... BTW who started this thread in cocoa-dev mailing list? It should be go to xcode-users! ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] Directory File enumeration order?
Hello, I wrote lines of code to enumerate files folders under a given folder.
NSFileManager *fileManager = [[[NSFileManager alloc] init] autorelease];
NSDirectoryEnumerator *directoryEnumerator;
NSURL *candidateURL = nil;
for( theURL in m_URLs_folders )
{
directoryEnumerator = [fileManager enumeratorAtURL:theURL
includingPropertiesForKeys:enumerationKey
options:enumerationMask
errorHandler:nil];
while( candidateURL = [directoryEnumerator nextObject] )
{
The order [directoryEnumerator nextObject] gives is :
file://localhost/Users/jongampark/Sample%20Video/Upper/Reel/Clip_0016/Media/Clip_0016_01.dpx,
file://localhost/Users/jongampark/Sample%20Video/Upper/Reel/Clip_0016/Media/Clip_0016_02.dpx,
file://localhost/Users/jongampark/Sample%20Video/Upper/Reel/Clip_0016/Media/Clip_0016_00.dpx
How can I make it retrieve in this order?
Clip_0016_00.dpx,
Clip_0016_01.dpx,
Clip_0016_02.dpx,
Thank you.
JongAm Park
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Re: [Q] Directory File enumeration order?
Yeah.. that was what I thought, but I thought nextObject is too vague and
doing that additional step is too time-consuming, because I need to work on
contents in directories in my current project very frequently.
If the NSDirectoryEnumerator supports how the next object is to be chosen, it
can be great.
Thank you.
On Jul 20, 2011, at 2:12 PM, Evadne Wu wrote:
Maybe instead of using the directory enumerator, fetch all the contents as an
NSArray and sort that?
-ev
On Jul 21, 2011, at 05:09, JongAm Park wrote:
Hello, I wrote lines of code to enumerate files folders under a given
folder.
NSFileManager *fileManager = [[[NSFileManager alloc] init] autorelease];
NSDirectoryEnumerator *directoryEnumerator;
NSURL *candidateURL = nil;
for( theURL in m_URLs_folders )
{
directoryEnumerator = [fileManager enumeratorAtURL:theURL
includingPropertiesForKeys:enumerationKey
options:enumerationMask
errorHandler:nil];
while( candidateURL = [directoryEnumerator nextObject] )
{
The order [directoryEnumerator nextObject] gives is :
file://localhost/Users/jongampark/Sample%20Video/Upper/Reel/Clip_0016/Media/Clip_0016_01.dpx,
file://localhost/Users/jongampark/Sample%20Video/Upper/Reel/Clip_0016/Media/Clip_0016_02.dpx,
file://localhost/Users/jongampark/Sample%20Video/Upper/Reel/Clip_0016/Media/Clip_0016_00.dpx
How can I make it retrieve in this order?
Clip_0016_00.dpx,
Clip_0016_01.dpx,
Clip_0016_02.dpx,
Thank you.
JongAm Park
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Re: [Q] Directory File enumeration order?
I understood what you said. For the performance, well.. it depends on what kind of S/W it is and how often it needs to sort internally. In my case, I don't think it will be too slow, but I always consider fast performance. Without testing, I can think that it is slow. But whether it is practically fast or not is.. yeah.. it will be OK for the project I work on now. Thank you. JongAm Park On Jul 20, 2011, at 3:28 PM, Jens Alfke wrote: On Jul 20, 2011, at 2:09 PM, JongAm Park wrote: How can I make it retrieve in this order? Clip_0016_00.dpx, Clip_0016_01.dpx, Clip_0016_02.dpx, I don’t think you can. In general, file systems do not have to store directory contents sorted by name. It happens that HFS+ does, but other common filesystems like FAT and SMB don’t. And the API isn’t going to do extra work to sort the filenames for you, because these enumeration APIs are often performance bottlenecks (when run over entire filesystems) and need to be fast. Yeah.. that was what I thought, but I thought nextObject is too vague and doing that additional step is too time-consuming, because I need to work on contents in directories in my current project very frequently. Have you actually benchmarked and determined that doing the sorting is too slow, or are you just guessing? Guesses about performance are very often wrong. The evidence from many UIs that show directory contents in sorted order (Finder, NSOpenPanel, etc.) is that this isn’t noticeably slow. —Jens ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] Using GraphicsMagic++ in a thread method?
Hello, all. I decided to use GraphicsMagic++ in my Objective-C++/Cocoa project. When I created Magick::Image variable statically in a method which is to be called by NSInvocationOperation, it receives EXC_BAD_ACCESS error. However, if it is declared outside of the thread method, there is no such problem. If there are anyone who uses GraphicsMagic++ in their Cocoa/Objective-C(++) project and are aware of this problem, can you share your idea with me? Thank you. JongAm Park___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] Will the be any problem in implementing an NSArray method using fast enumeration?
Hello,
I wrote a method for NSArray.
- (NSArray *)objectsForKey:(id)key
{
NSMutableArray *objectsArray = [NSMutableArray arrayWithCapacity:10];
for( id item in self )
{
[objectsArray addObject:[item objectForKey:key]];
}
return [[objectsArray copy] autorelease];
}
What I'm curious is if it is OK to use fast enumeration to implement an NSArray
method itself.
Because the mechanism for fast enumeration is already there, I basically think
it will be OK.
However, wouldn't it better to rely on the most fundamental mechanism like
objectAtIndex:?
I found someone's implementation here at
http://svn.opengroupware.org/SOGo/inverse/trunk/SoObjects/SOGo/NSArray+Utilities.m
Approaching such a way looks reasonable to me, because it should work whatever
underlying mechanism is supported by Objective-C.
Will there be any good/bad aspect in using fast enumeration in this case?
Thank you.
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Re: [Q] Will the be any problem in implementing an NSArray method using fast enumeration?
Um... Thanks for your reply. The last time I used that was about 5 or 6 years ago, and I wondered yesterday where it went away. :) Thanks for pointing out that method. BTW, my actual question was if it is meant to use fast enumeration in a collection class implementation. Although I tried to add objectsForKey: to existing NSArray, it should be OK, because it is to rely on existing, fully functional one. However, let's say we write a class like NSArray that supports fast enumeration, block based enumeration, numerator based enumeration and finally index based iteration. The rationale behind enumerator pattern is to unify the way to access collection classes no matter what they actually look like. So, enumerator pattern is actually written in index based iteration wrapped with enumerator pattern. Similarly, I guessed fast enumeration was based on either index iteration or enumerator pattern. Also, fast enumeration is a language feature. So, if Objective-C without fast enumerator is used, methods written with fast enumerator would not work. So, my question was originally for that. :) Anyway, it's not big deal now. Thank you :) JongAm Park On Jun 30, 2011, at 12:02 PM, Dave DeLong wrote: Yeah, that should be fine, but it's unnecessary. You can just do: NSArray *objectsArray = [theArray valueForKey:key]; And it'll do pretty much the same thing (except that it'll call -valueForKey: on each item in the array, and not objectForKey:. However, if the objects are NSDictionaries, that's pretty much the same thing). Dave ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] Will the be any problem in implementing an NSArray method using fast enumeration?
Wow.. great information! Thank you very much for sharing your idea! It definitely helped me! JongAm Park On Jun 30, 2011, at 2:41 PM, Quincey Morris wrote: On Jun 30, 2011, at 13:51, JongAm Park wrote: The rationale behind enumerator pattern is to unify the way to access collection classes no matter what they actually look like. So, enumerator pattern is actually written in index based iteration wrapped with enumerator pattern. Similarly, I guessed fast enumeration was based on either index iteration or enumerator pattern. No, not necessarily, if by index iteration you mean 'objectAtIndex:'. NSArray has 2 primitive methods (count and objectAtIndex:) that a concrete subclass must implement. It also conforms to NSFastEnumeration, so a concrete subclass must also implement 'countByEnumeratingWithState:objects:count:'. That's three primitive methods you know for sure are implemented in any concrete subclass. There's no way of knowing (in general) whether these primitive implementations make use of each other. I'm virtually certain, for example, that in NSCFArray (the standard but private concrete subclass of NSArray), countByEnumeratingWithState:objects:count: doesn't use objectAtIndex:, because part of the point of fast enumeration is to eliminate per-object method calls if possible. I'm also virtually certain that NSCFArray's enumerator uses the fast enumeration method countByEnumeratingWithState:objects:count: directly, rather than using objectAtIndex:. The method you wrote is non-primitive. However, you know that all of the primitive methods and protocols are implemented, so it's safe to use those directly (as others already replied). It's also safe to use all of the standard non-primitive methods, because the abstract NSArray class provides default implementations of all of them, regardless of whether a subclass overrides them for performance reasons. Also, fast enumeration is a language feature. So, if Objective-C without fast enumerator is used, methods written with fast enumerator would not work. If an older Objective-C runtime is used, you'll get an invalid selector exception for 'countByEnumeratingWithState:objects:count:', so yes it would not work in that sense. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] What options to use to display menu bar in a full screen mode
Hello, For PDFView, I used enterFullScreenMode:WithOptions: After looking up some sample codes, I found out that what they used in examples, • From A View to A Movie • From A View to A Picture are different from what is explained in the document. Anyway, I tried many options include no option. Passing nil to the options parameter displays PDF document, while passing NSFullScreenModeWindowLevel option doesn't display anything. Passing NSFullScreenModeSetting with YES as a value displays the PDF document. ( This is the way From A View to ... sample is written. ) However, I would like to display the menu bar when a mouse is near the menu bar area or the top of the screen. Can anyone tell me how to do so? Are there some sample codes? Thanks, ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] Using NSInvocation vs. selector with NSTimer
On 10/17/2010 4:11 PM, Joar Wingfors wrote: On 17 okt 2010, at 15.51, JongAm Park wrote: Although I know that NSInvocation was added (from Leopard?), I didn't use it much. NSInvocation predates Mac OS X... Oh. right. I forgot that. Is there any benefit in using it? My guess is that an NSInvocation instance is used repeatedly, but using the selector based method is not inconvenient for the most of cases. Is there any other benefit in using the NSInvocation? NSInvocation is a very flexible class, and can be used for a wide variety of tasks, but it is also (therefore) more cumbersome to setup and use for the simpler things that you mention. It is not often used, so if you don't know that you need it, you probably don't. j o a r Well, what I asked actually is about the design philosophy and what the intention of creating of that was. Your last statement can't fulfill my curiosity. :) Thanks anyway to spare your time to answer my question. -- -- 子曰 不而不改 是謂過矣니라 공자께서 말씀하시길, 잘못을 하고도 고치지 않는 것, 그것을 잘못이라 한다. - 論語 衛 靈 公편 JongAm Park jongamp...@sbcglobal.net Visit my personal blog at http://jongampark.blogspot.com Visit my technical blog at http://jongampark.wordpress.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] Using NSInvocation vs. selector with NSTimer
On 10/18/2010 9:45 AM, Keary Suska wrote: On Oct 18, 2010, at 9:00 AM, JongAm Park wrote: Is there any benefit in using it? My guess is that an NSInvocation instance is used repeatedly, but using the selector based method is not inconvenient for the most of cases. Is there any other benefit in using the NSInvocation? NSInvocation is a very flexible class, and can be used for a wide variety of tasks, but it is also (therefore) more cumbersome to setup and use for the simpler things that you mention. It is not often used, so if you don't know that you need it, you probably don't. Well, what I asked actually is about the design philosophy and what the intention of creating of that was. Your last statement can't fulfill my curiosity. :) The common design use would be situations where the method you wish the timer to call requires additional data that would be passed as arguments. Essentially the point of using invocations is to permit the timer to call any method whatsoever, regardless of the method signature. Keary Suska Esoteritech, Inc. Demystifying technology for your home or business Thank you. So, it is about decoupling.. -- -- 子曰 不而不改 是謂過矣니라 공자께서 말씀하시길, 잘못을 하고도 고치지 않는 것, 그것을 잘못이라 한다. - 論語 衛 靈 公편 JongAm Park jongamp...@sbcglobal.net Visit my personal blog at http://jongampark.blogspot.com Visit my technical blog at http://jongampark.wordpress.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] How to handle mouseDown when PDFView is in full screen mode?
Hello,
I would like to implement on-screen buttons like the ones Preview presents in
its full screen mode.
I used this to enter full screen mode.
enterFullScreenMode: withOptions:
When it becomes full screen mode, I pressed mouse button, but it is not
processed.
@implementation PDFView ( FullScreenExt )
- (void)mouseDown:(NSEvent *)theEvent
{
NSLog( @mouseDown handling...);
if( [self isInFullScreenMode] )
{
NSLog( @Is in full screen mode...);
[self exitFullScreenModeWithOptions:[NSDictionary
dictionaryWithObject:[NSNumber numberWithInt:NSNormalWindowLevel]
forKey:NSFullScreenModeWindowLevel]];
}
else
NSLog( @Is not in full screen mode...);
[super mouseDown:theEvent];
}
@end
Is there a way to handle mouseDown in fullscreen mode?
are there also some sample codes for on-screen buttons of Preview?
Thanks,
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[Q] Is this a bug in MPMoviePlayerController? Then how to work around?
Hello, all. My acquaintance told me that he found a strange problem while using MPMoviePlayerController. According to him, from second play of a movie file located on a server, a server said that there was a cached movie clip on a client and guided to use the locally cached one, but on the client side, i.e. MPMoviePlayerController, it said that the server information was wrong and rejected it. Is this a bug? How to work around it, then? Thank you. -- JongAm Park Visit my technical blog at http://jongampark.wordpress.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Proposal for category in plugin environment
Hello, I'm not not sure if it should be only implemented on language side in gcc or cocoa also need to handle it, but I posted a proposal to my blog about category under plugin environment. ( http://jongampark.wordpress.com/2010/04/04/proposal-for-category-in-plugin-environment/ ) Are Apple people thinking about the same or similar mechanism? If not, what do you think about my proposal. ( I don't mean that I will implement it, but... just suggesting.. ) Thank you. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] copy operation and authorization
Hello,
I'm trying to copy a file from a desktop to a /Library/Application
Supports/../Plugins directory.
Because the directory requires to obtain system administrator's
privilege I should be authorized.
so, I wrote codes like this.
- (void)awakeFromNib
{
[self authorize];
}
- (void) applicationWillTerminate:(NSNotification *)aNotification
{
OSStatus myStatus;
NSLog( @applicationWillTerminate);
myStatus = AuthorizationFree( mAuthorizationRef,
kAuthorizationFlagDestroyRights );
}
-(IBAction)copyWithNSFileManager:(id)sender
{
NSString *PlugInPath = [NSString
stringWithString:@/Library/Application Support/Final Cut Pro System
Support/Plugins/test3.valm];
NSString *sourceFile = [NSString
stringWithFormat:@%@/Desktop/test3.valm, NSHomeDirectory()];
BOOL isSuccessful;
isSuccessful = [[NSFileManager defaultManager] copyPath:sourceFile
toPath:PlugInPath handler:nil];
}
-(IBAction)copyWithNSWorkspace:(id)sender
{
NSString *PluginPath = [NSString
stringWithString:@/Library/Application Support/Final Cut Pro System
Support/Plugins];
NSString *sourceDirectory = [NSString
stringWithFormat:@%@/Desktop, NSHomeDirectory()];
NSArray *files = [NSArray arrayWithObject:@test3.valm];
NSInteger tag;
BOOL isSuccessful = [[NSWorkspace sharedWorkspace]
performFileOperation:NSWorkspaceCopyOperation
source:sourceDirectory
destination:PluginPath
files:files
tag:tag];
NSLog(@isSuccessful = %@, isSuccessful? @YES:@NO );
}
- (void)authorize
{
OSStatus myStatus;
myStatus = AuthorizationCreate(NULL, kAuthorizationEmptyEnvironment,
kAuthorizationFlagDefaults, mAuthorizationRef);
AuthorizationItem myItems[1];
myItems[0].name = com.greenleaf.FileCopyTest.myRight1;
myItems[0].valueLength = 0;
myItems[0].value = NULL;
myItems[0].flags = 0;
AuthorizationRights myRights;
myRights.count = sizeof( myItems ) / sizeof( myItems[0] );
myRights.items = myItems;
AuthorizationFlags myFlags = kAuthorizationFlagDefaults |
kAuthorizationFlagInteractionAllowed | kAuthorizationFlagExtendRights;
myStatus = AuthorizationCopyRights(mAuthorizationRef, myRights,
kAuthorizationEmptyEnvironment, myFlags, NULL);
if( myStatus == errAuthorizationSuccess )
{
NSLog(@Successful in authorizing.. );
}
}
Although it returns errAuthorizationSuccess in authorize method,
when a file is to be copied, it returns fail state and the file is not
copied.
Can anyone help me to figure out why?
Should I use AuthorizationExecuteWithPrivileges() and invoke an external
command like cp?
I think it should be possible to copy files with proper privilege with
Cocoa calls.
Thank you.
JongAm Pawrk
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Re: [Q] copy operation and authorization
I'm sorry, but the scenario doesn't apply to mine. Thank you. Sherm Pendley wrote: On Thu, Nov 12, 2009 at 12:44 PM, JongAm Park joshua_park2006-applel...@yahoo.com wrote: NSString *sourceFile = [NSString stringWithFormat:@%@/Desktop/test3.valm, NSHomeDirectory()]; Have you tried this? [[NSWorkspace sharedWorkspace] openFile:sourceFile]; Many apps register their plugin extensions as document types, so you can simply open them and let the app handle the installation for you. The screen saver app, for example, does this with .saver plugins. sherm-- ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] copy operation and authorization
Nick Zitzmann wrote: On Nov 12, 2009, at 10:44 AM, JongAm Park wrote: NSString *PlugInPath = [NSString stringWithString:@/Library/Application Support/Final Cut Pro System Support/Plugins/test3.valm]; Apologies for being a little pedantic here, but calling +stringWithString: is almost never necessary and in this case is just cluttering the autorelease pool/garbage collector. You can set NSString pointers to NSString constants with no problems. It's intermediate code. I have good reason to use stringWithString or stringWithFormat. It was revised to hide something from original code, but I didn't want to change much to post the code to the mailing list. So, I used remainder from the original code. Although it returns errAuthorizationSuccess in authorize method, when a file is to be copied, it returns fail state and the file is not copied. Can anyone help me to figure out why? You cannot escalate the privileges of a running task on Mac OS X. So if a running task does not have root privileges, then it never will. Then how? Should I use AuthorizationExecuteWithPrivileges() and invoke an external command like cp? I think it should be possible to copy files with proper privilege with Cocoa calls. Yes. Apple actually wants you to use AEWP() to run your own helper tool for security reasons, though it's highly unlikely you'll run into problems by doing direct invocations. Check the list archives for details. Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] copy operation and authorization
Hi,
I already took a look at it. It is to use factored approach.
Thank you.
Volker in Lists wrote:
Hi,
I am using this and I guess it is the recommended way of doing. Works
well:
http://developer.apple.com/mac/library/samplecode/BetterAuthorizationSample/index.html
Volker
Am 12.11.2009 um 18:44 schrieb JongAm Park:
Hello,
I'm trying to copy a file from a desktop to a /Library/Application
Supports/../Plugins directory.
Because the directory requires to obtain system administrator's
privilege I should be authorized.
so, I wrote codes like this.
- (void)awakeFromNib
{
[self authorize];
}
- (void) applicationWillTerminate:(NSNotification *)aNotification
{
OSStatus myStatus;
NSLog( @applicationWillTerminate);
myStatus = AuthorizationFree( mAuthorizationRef,
kAuthorizationFlagDestroyRights );
}
-(IBAction)copyWithNSFileManager:(id)sender
{
NSString *PlugInPath = [NSString
stringWithString:@/Library/Application Support/Final Cut Pro System
Support/Plugins/test3.valm];
NSString *sourceFile = [NSString
stringWithFormat:@%@/Desktop/test3.valm, NSHomeDirectory()];
BOOL isSuccessful;
isSuccessful = [[NSFileManager defaultManager] copyPath:sourceFile
toPath:PlugInPath handler:nil];
}
-(IBAction)copyWithNSWorkspace:(id)sender
{
NSString *PluginPath = [NSString
stringWithString:@/Library/Application Support/Final Cut Pro System
Support/Plugins];
NSString *sourceDirectory = [NSString
stringWithFormat:@%@/Desktop, NSHomeDirectory()];
NSArray *files = [NSArray arrayWithObject:@test3.valm];
NSInteger tag;
BOOL isSuccessful = [[NSWorkspace sharedWorkspace]
performFileOperation:NSWorkspaceCopyOperation
source:sourceDirectory
destination:PluginPath
files:files
tag:tag];
NSLog(@isSuccessful = %@, isSuccessful? @YES:@NO );
}
- (void)authorize
{ OSStatus myStatus;
myStatus = AuthorizationCreate(NULL,
kAuthorizationEmptyEnvironment, kAuthorizationFlagDefaults,
mAuthorizationRef);
AuthorizationItem myItems[1];
myItems[0].name = com.greenleaf.FileCopyTest.myRight1;
myItems[0].valueLength = 0;
myItems[0].value = NULL;
myItems[0].flags = 0;
AuthorizationRights myRights;
myRights.count = sizeof( myItems ) / sizeof( myItems[0] );
myRights.items = myItems;
AuthorizationFlags myFlags = kAuthorizationFlagDefaults |
kAuthorizationFlagInteractionAllowed | kAuthorizationFlagExtendRights;
myStatus = AuthorizationCopyRights(mAuthorizationRef, myRights,
kAuthorizationEmptyEnvironment, myFlags, NULL);
if( myStatus == errAuthorizationSuccess )
{
NSLog(@Successful in authorizing.. );
}
}
Although it returns errAuthorizationSuccess in authorize method,
when a file is to be copied, it returns fail state and the file is
not copied.
Can anyone help me to figure out why?
Should I use AuthorizationExecuteWithPrivileges() and invoke an
external command like cp?
I think it should be possible to copy files with proper privilege
with Cocoa calls.
Thank you.
JongAm Pawrk
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Re: [Q] copy operation and authorization
Thank you. I will try AuthorizationExecuteWithPrivileges(). JongAm Park Nick Zitzmann wrote: On Nov 12, 2009, at 11:34 AM, JongAm Park wrote: You cannot escalate the privileges of a running task on Mac OS X. So if a running task does not have root privileges, then it never will. Then how? That's what AEWP() is for. Once you've pre-authorized, you pass your authorization ref to AEWP(), and it will run the program you want it to run with root privileges. But you can never elevate the privileges of an unprivileged app, not even for one call. Note that AEWP() does not run tasks _as_ root (and yes, there's a difference). If you need that, then you need to invoke AEWP() with a wrapper that sets the uid. Search the archives for details. Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] copy operation and authorization
Thank you all. It works now. What is interesting was that it didn't require to use PreAuthoriazation flag when invoking cp. I think the Factored Application case in the document was about an external program which are not Unix commands but something else. Thank you again. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] How to populate custom button of QuickTime media control?
Hello, I would like to add number of audio tracks menu item under custom button on QuickTime media control. What I mean by saying custom button is the triangle button which is at the right most side if you open a QuickTime movie using Web browser. I'm currently using QTKit and found some old sample code, QTCustomButton.c/h. But I don't know how to know if the custom button is clicked. Also, I would like to know if there is a way to do it with Cocoa. QTKit or MovieController don't seem to support the custom button directly. Also, QuickTime X doesn't seem to have the custom button. if it doesn't have one, is there any other alternative way? Thank you. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] CFStringGetCStringPtr( ..., kCFStringEncodingUTF8)
Hello.
I didn't find any CoreFoundation mailing list, so I post my question
about CFStringEtCStringPtr() here in Cocoa mailing list.
My problem is that CFStringGetCStringPtr( ..., kCFStringEncodingUTF8)
doesn't convert a string passed through its first parameter and returns
0 on English system.
However, on Japanese system, it returns a pointer to converted string
correctly.
The first parameter points to a string which is a path in English. There
is no Japanese characters.
Because the 2nd parameter is one of 8 bit encoding, it didn't work
before on Japanese system, where it was called like :
CFStringGetCStringPtr( ..., CFStringGetSystemEncoding() )
The encoding method on a Japanese system is
kCFStringEncodingMacJapanese
http://developer.apple.com/documentation/CoreFoundation/Reference/CFStringRef/Reference/reference.html#//apple_ref/doc/c_ref/kCFStringEncodingMacJapanese
So, I forced the 2nd parameter to kCFStringEncodingUTF8 and thought that
it would work on English system also.
However, on an English system, of which system encoding is
kCFStringEncodingMacRoman
http://developer.apple.com/documentation/CoreFoundation/Reference/CFStringRef/Reference/reference.html#//apple_ref/doc/c_ref/kCFStringEncodingMacRoman
It doesn't convert its 1st parameter and returned 0.
So, I had to call another CFStringGetCStringPtr() with
CFStringGetSystemEncoding() as its 2nd parameter.
Is it a bug? Usually English encoding is the most trouble-free encoding
method which can be converted to UTF8. So, I expected that it would work
with kCFStringEncodingUTF8.
Or.. can anyone tell me why it doesn't work?
My whole source code which contains this fix is like
char *fullPath;
char outPath[512];;
Boolean conversionResult;
CFStringEncoding encodingMethod;
// This is for ensuring safer operation. When
CFStringGetCStringPtr() fails,
// it tries CFStringGetCString().
encodingMethod = CFStringGetSystemEncoding();
// 1st try for English system
fullPath = (char*)CFStringGetCStringPtr(mstr, encodingMethod);
if( fullPath == NULL )
{
// 2nd try for Japanese system
encodingMethod = kCFStringEncodingUTF8;
fullPath = (char*)CFStringGetCStringPtr(mstr, encodingMethod);
}
// for safer operation.
if( fullPath == NULL )
{
CFIndex length = CFStringGetLength(mstr);
fullPath = (char *)malloc( length + 1 );
conversionResult = CFStringGetCString(mstr, fullPath, length,
kCFStringEncodingUTF8 );
strcpy( outPath, fullPath );
free( fullPath );
}
else
strcpy( outPath, fullPath );
Thank you.
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Re: [Q] CFStringGetCStringPtr( ..., kCFStringEncodingUTF8)
Thanks for your reply.
However, even with CFStringGetCString() with the 2nd parameter
kCFStringEncodingUTF8 doesn't work correctly.
Laurent Cerveau wrote:
According to the doc it is completely OK for the CFStringPtr to
return NULL.
CFStringGetCStringPtr()
CFStringGetCharactersPtr()
These functions are provided for optimization only. They will either
return the desired
pointer quickly, in constant time, or they return NULL. They might
choose to return NULL
for many reasons; for instance it's possible that for users running in
different
languages these sometimes return NULL; or in a future OS release the
first two might
switch to always returning NULL. Never observing NULL returns in your
usages of these
functions does not mean they won't ever return NULL. (But note the
CFStringGetCharactersPtr()
exception mentioned further below.)
What you do with falling back to CFStringGetCString is right
laurent
On Jun 23, 2009, at 7:26 PM, JongAm Park wrote:
Hello.
I didn't find any CoreFoundation mailing list, so I post my question
about CFStringEtCStringPtr() here in Cocoa mailing list.
My problem is that CFStringGetCStringPtr( ..., kCFStringEncodingUTF8)
doesn't convert a string passed through its first parameter and
returns 0 on English system.
However, on Japanese system, it returns a pointer to converted string
correctly.
The first parameter points to a string which is a path in English.
There is no Japanese characters.
Because the 2nd parameter is one of 8 bit encoding, it didn't work
before on Japanese system, where it was called like :
CFStringGetCStringPtr( ..., CFStringGetSystemEncoding() )
The encoding method on a Japanese system is
kCFStringEncodingMacJapanese
http://developer.apple.com/documentation/CoreFoundation/Reference/CFStringRef/Reference/reference.html#//apple_ref/doc/c_ref/kCFStringEncodingMacJapanese
So, I forced the 2nd parameter to kCFStringEncodingUTF8 and thought
that it would work on English system also.
However, on an English system, of which system encoding is
kCFStringEncodingMacRoman
http://developer.apple.com/documentation/CoreFoundation/Reference/CFStringRef/Reference/reference.html#//apple_ref/doc/c_ref/kCFStringEncodingMacRoman
It doesn't convert its 1st parameter and returned 0.
So, I had to call another CFStringGetCStringPtr() with
CFStringGetSystemEncoding() as its 2nd parameter.
Is it a bug? Usually English encoding is the most trouble-free
encoding method which can be converted to UTF8. So, I expected that
it would work with kCFStringEncodingUTF8.
Or.. can anyone tell me why it doesn't work?
My whole source code which contains this fix is like
char *fullPath;
char outPath[512];;
Boolean conversionResult;
CFStringEncoding encodingMethod;
// This is for ensuring safer operation. When
CFStringGetCStringPtr() fails,
// it tries CFStringGetCString().
encodingMethod = CFStringGetSystemEncoding();
// 1st try for English system
fullPath = (char*)CFStringGetCStringPtr(mstr, encodingMethod);
if( fullPath == NULL )
{
// 2nd try for Japanese system
encodingMethod = kCFStringEncodingUTF8;
fullPath = (char*)CFStringGetCStringPtr(mstr, encodingMethod);
}
// for safer operation.
if( fullPath == NULL )
{
CFIndex length = CFStringGetLength(mstr);
fullPath = (char *)malloc( length + 1 );
conversionResult = CFStringGetCString(mstr, fullPath, length,
kCFStringEncodingUTF8 );
strcpy( outPath, fullPath );
free( fullPath );
}
else
strcpy( outPath, fullPath );
Thank you.
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Re: [Q] CFStringGetCStringPtr( ..., kCFStringEncodingUTF8)
Oh.. one more thing...
I think you didn't catch what I wanted to say.
It will be OK to return NULL if it can't convert a given string to a
string in a given text encoding method.
( But, yes.. Apple's document mentioned that its behaviour can be
changed, so don't rely on it. )
What I wanted to say was Why does it return a meaningful address when
the system encoding is Japanese while it doesn't when the system
encoding is English?.
(When UTF8 is used for a target. )
Can't MacRoman be converted to UTF8 while MacJapanese can be?
I assumed that MacRoman code page is almost identical to UTF8, because
UTF8 is compatible with ASCII and MacRoman is extended form for ASCII.
Anyway.. I will go around the problem...
Thank you anyway.
Laurent Cerveau wrote:
According to the doc it is completely OK for the CFStringPtr to
return NULL.
CFStringGetCStringPtr()
CFStringGetCharactersPtr()
These functions are provided for optimization only. They will either
return the desired
pointer quickly, in constant time, or they return NULL. They might
choose to return NULL
for many reasons; for instance it's possible that for users running in
different
languages these sometimes return NULL; or in a future OS release the
first two might
switch to always returning NULL. Never observing NULL returns in your
usages of these
functions does not mean they won't ever return NULL. (But note the
CFStringGetCharactersPtr()
exception mentioned further below.)
What you do with falling back to CFStringGetCString is right
laurent
On Jun 23, 2009, at 7:26 PM, JongAm Park wrote:
Hello.
I didn't find any CoreFoundation mailing list, so I post my question
about CFStringEtCStringPtr() here in Cocoa mailing list.
My problem is that CFStringGetCStringPtr( ..., kCFStringEncodingUTF8)
doesn't convert a string passed through its first parameter and
returns 0 on English system.
However, on Japanese system, it returns a pointer to converted string
correctly.
The first parameter points to a string which is a path in English.
There is no Japanese characters.
Because the 2nd parameter is one of 8 bit encoding, it didn't work
before on Japanese system, where it was called like :
CFStringGetCStringPtr( ..., CFStringGetSystemEncoding() )
The encoding method on a Japanese system is
kCFStringEncodingMacJapanese
http://developer.apple.com/documentation/CoreFoundation/Reference/CFStringRef/Reference/reference.html#//apple_ref/doc/c_ref/kCFStringEncodingMacJapanese
So, I forced the 2nd parameter to kCFStringEncodingUTF8 and thought
that it would work on English system also.
However, on an English system, of which system encoding is
kCFStringEncodingMacRoman
http://developer.apple.com/documentation/CoreFoundation/Reference/CFStringRef/Reference/reference.html#//apple_ref/doc/c_ref/kCFStringEncodingMacRoman
It doesn't convert its 1st parameter and returned 0.
So, I had to call another CFStringGetCStringPtr() with
CFStringGetSystemEncoding() as its 2nd parameter.
Is it a bug? Usually English encoding is the most trouble-free
encoding method which can be converted to UTF8. So, I expected that
it would work with kCFStringEncodingUTF8.
Or.. can anyone tell me why it doesn't work?
My whole source code which contains this fix is like
char *fullPath;
char outPath[512];;
Boolean conversionResult;
CFStringEncoding encodingMethod;
// This is for ensuring safer operation. When
CFStringGetCStringPtr() fails,
// it tries CFStringGetCString().
encodingMethod = CFStringGetSystemEncoding();
// 1st try for English system
fullPath = (char*)CFStringGetCStringPtr(mstr, encodingMethod);
if( fullPath == NULL )
{
// 2nd try for Japanese system
encodingMethod = kCFStringEncodingUTF8;
fullPath = (char*)CFStringGetCStringPtr(mstr, encodingMethod);
}
// for safer operation.
if( fullPath == NULL )
{
CFIndex length = CFStringGetLength(mstr);
fullPath = (char *)malloc( length + 1 );
conversionResult = CFStringGetCString(mstr, fullPath, length,
kCFStringEncodingUTF8 );
strcpy( outPath, fullPath );
free( fullPath );
}
else
strcpy( outPath, fullPath );
Thank you.
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Re: [Q] CFStringGetCStringPtr( ..., kCFStringEncodingUTF8)
Hello, Aki
Oh.. I see. when it can do efficiently is the key!
Thank you very much for pointing that out.
Aki Inoue wrote:
JongAm,
The keyword here is that the function returns non-NULL when it can do
so efficiently.
It all depends on a particular CFString instance's internal
representation and the encoding being passed.
The best encoding for a particular string is
CFStringGetFastestEncoding().
Aki
On Jun 23, 2009, at 12:13 PM, JongAm Park wrote:
Oh.. one more thing...
I think you didn't catch what I wanted to say.
It will be OK to return NULL if it can't convert a given string to a
string in a given text encoding method.
( But, yes.. Apple's document mentioned that its behaviour can be
changed, so don't rely on it. )
What I wanted to say was Why does it return a meaningful address
when the system encoding is Japanese while it doesn't when the system
encoding is English?.
(When UTF8 is used for a target. )
Can't MacRoman be converted to UTF8 while MacJapanese can be?
I assumed that MacRoman code page is almost identical to UTF8,
because UTF8 is compatible with ASCII and MacRoman is extended form
for ASCII.
Anyway.. I will go around the problem...
Thank you anyway.
Laurent Cerveau wrote:
According to the doc it is completely OK for the CFStringPtr to
return NULL.
CFStringGetCStringPtr()
CFStringGetCharactersPtr()
These functions are provided for optimization only. They will either
return the desired
pointer quickly, in constant time, or they return NULL. They might
choose to return NULL
for many reasons; for instance it's possible that for users running
in different
languages these sometimes return NULL; or in a future OS release the
first two might
switch to always returning NULL. Never observing NULL returns in
your usages of these
functions does not mean they won't ever return NULL. (But note the
CFStringGetCharactersPtr()
exception mentioned further below.)
What you do with falling back to CFStringGetCString is right
laurent
On Jun 23, 2009, at 7:26 PM, JongAm Park wrote:
Hello.
I didn't find any CoreFoundation mailing list, so I post my
question about CFStringEtCStringPtr() here in Cocoa mailing list.
My problem is that CFStringGetCStringPtr( ...,
kCFStringEncodingUTF8) doesn't convert a string passed through its
first parameter and returns 0 on English system.
However, on Japanese system, it returns a pointer to converted
string correctly.
The first parameter points to a string which is a path in English.
There is no Japanese characters.
Because the 2nd parameter is one of 8 bit encoding, it didn't work
before on Japanese system, where it was called like :
CFStringGetCStringPtr( ..., CFStringGetSystemEncoding() )
The encoding method on a Japanese system is
kCFStringEncodingMacJapanese
http://developer.apple.com/documentation/CoreFoundation/Reference/CFStringRef/Reference/reference.html#//apple_ref/doc/c_ref/kCFStringEncodingMacJapanese
So, I forced the 2nd parameter to kCFStringEncodingUTF8 and thought
that it would work on English system also.
However, on an English system, of which system encoding is
kCFStringEncodingMacRoman
http://developer.apple.com/documentation/CoreFoundation/Reference/CFStringRef/Reference/reference.html#//apple_ref/doc/c_ref/kCFStringEncodingMacRoman
It doesn't convert its 1st parameter and returned 0.
So, I had to call another CFStringGetCStringPtr() with
CFStringGetSystemEncoding() as its 2nd parameter.
Is it a bug? Usually English encoding is the most trouble-free
encoding method which can be converted to UTF8. So, I expected that
it would work with kCFStringEncodingUTF8.
Or.. can anyone tell me why it doesn't work?
My whole source code which contains this fix is like
char *fullPath;
char outPath[512];;
Boolean conversionResult;
CFStringEncoding encodingMethod;
// This is for ensuring safer operation. When
CFStringGetCStringPtr() fails,
// it tries CFStringGetCString().
encodingMethod = CFStringGetSystemEncoding();
// 1st try for English system
fullPath = (char*)CFStringGetCStringPtr(mstr, encodingMethod);
if( fullPath == NULL )
{
// 2nd try for Japanese system
encodingMethod = kCFStringEncodingUTF8;
fullPath = (char*)CFStringGetCStringPtr(mstr, encodingMethod);
}
// for safer operation.
if( fullPath == NULL )
{
CFIndex length = CFStringGetLength(mstr);
fullPath = (char *)malloc( length + 1 );
conversionResult = CFStringGetCString(mstr, fullPath, length,
kCFStringEncodingUTF8 );
strcpy( outPath, fullPath );
free( fullPath );
}
else
strcpy( outPath, fullPath );
Thank you.
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[Q] inconsistent naming for Core Graphics and Foundation?
Hello, all I'm just curious about the naming convention for Core Graphics and Foundation. For example, NSMakeRect and CGRectMake are similar but different about where the Rect is in its method name. What is even worse is NSPointInRect and CGRectContainsPoint. So, if a person is used to the Foundation convention, it is not intuitive to find proper method in Core Graphics. Is there any reason they are named like that? Thank you. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] inconsistent naming for Core Graphics and Foundation?
Yeah.. I agree with you in the point of view. But if we take a look at it from different angle, NSMakeRect is better, because it is more understandable due to its resemblance to spoken English. NSPointInRect vs. CGRectContainsPoint is more subtle. Is it Rect- related method or Point-related method? Whatever they are, it would be great if there is consistency or if the document mentions those in related functions or methods. part. On Mar 15, 2009, at 12:04 AM, Andy Lee wrote: I noticed the differences too, and my guess was that it makes it easier to find functions related to CGRects, by searching the API for terms that contain CGRect. I actually prefer it this way. --Andy On Mar 15, 2009, at 2:43 AM, JongAm Park wrote: Hello, all I'm just curious about the naming convention for Core Graphics and Foundation. For example, NSMakeRect and CGRectMake are similar but different about where the Rect is in its method name. What is even worse is NSPointInRect and CGRectContainsPoint. So, if a person is used to the Foundation convention, it is not intuitive to find proper method in Core Graphics. Is there any reason they are named like that? Thank you. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] inconsistent naming for Core Graphics and Foundation?
Thank you for your reply. So, I understood that the naming convention was changing. And.. yes.. I know I should accept what Apple makes, but I just was just curious. Thank you. On Mar 15, 2009, at 1:21 AM, Ken Thomases wrote: On Mar 15, 2009, at 2:39 AM, JongAm Park wrote: On Mar 15, 2009, at 12:04 AM, Andy Lee wrote: On Mar 15, 2009, at 2:43 AM, JongAm Park wrote: I'm just curious about the naming convention for Core Graphics and Foundation. For example, NSMakeRect and CGRectMake are similar but different about where the Rect is in its method name. What is even worse is NSPointInRect and CGRectContainsPoint. So, if a person is used to the Foundation convention, it is not intuitive to find proper method in Core Graphics. Is there any reason they are named like that? I noticed the differences too, and my guess was that it makes it easier to find functions related to CGRects, by searching the API for terms that contain CGRect. I actually prefer it this way. Whatever they are, it would be great if there is consistency or if the document mentions those in related functions or methods. part. I think the division isn't Core Graphics vs. Foundation (or, more generally, one framework vs. another). I think it's between legacy and new APIs. It seems fairly clear to me that Apple has adopted a convention that new APIs should be centered around a type, and that names within such an API are to start with the name of the type. However, large portions of Cocoa predate the adoption of this convention, coming as they do from NeXTStep/OpenStep. Those parts aren't going to be just gratuitously renamed to conform to the new convention. That would be massively disruptive. Unfortunately, there's just no way to generalize one way to think about all things. You have to accept things as they are and cope with the fact that there isn't just one rule. Regards, Ken ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] efficient or good model for send/receive with streams scheduled in runloop?
Thank you for your comment. Shawn Erickson wrote: A lock? As in NSLock, etc.? Why do you think you need a lock here given it isn't multi-thread and the fact that IO appears to be driven by a runloop which will serialize access for you. At first, I was not sure if the Run-Loop was implemented using thread or signal. So, I tried locking, but it turned out that it was not multithreaded from app programmer's point of view. It seems to be implemented using signal, so using lock was not helpful. You gave us very little actionable information, we can only guess at your implementation. You will have to provide more details and ideally sample code. -Shaw Yeah... I know. I also often say so if someone asks me and information he gives me is not sufficient. However, I also understand that sometimes there is no way to provide more information. So, by discussing I can figure out what he really wants. By the way I asked somewhat general design using a delegate message triggered by a run-loop. You see such kind of model from many books on network programming. Anyway, thank you for your comment again. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] efficient or good model for send/receive with streams scheduled in runloop?
Hello, I would like to write a network program which is scheduled in runloop. According to Stream Programming Guide for Cocoa, there are two scheduling, one is polling, and the other is run-loop scheduling. Because I don't want it to block things, the run-loop scheduling would be a nice an convenient way to go. ( Probably using thread with polling or signaling is more flexible. Actually it looks like that the run-loop scheduling is implemented with thread and signaling. ) With run-loop scheduling, it is very handy to send data to others only when there is space in a buffer, and receive only when there are data in a buffer. ( NSStreamEventHasSpaceAvailable and NSStreamEventHasBytesAvailable ) However, I have difficulty in making it to send data and receive ack from a server. Sometimes, it receives some meaningful data about changed information from a server, if a client send a request to change some data. But sometimes it also receives ack. So, I would like to make it do next job after receiving an ack. So, I embraced a send routine with a lock. But the whole client process is in dead-lock status, because it is not multi-threaded. ( a receive routine already locked. ) Under this situation, is there a good network programming model or pattern? How should I solve this issue? Thank you. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] disposing of a stream object when NSStreamEventEndEncounterered is received?
Hello. According to Stream Programming Guide for Cocoa : Writing to Output Streams, it says : When an NSOutputStream object concludes writing data to an output stream, it sends the delegate a |NSStreamEventEndEncountered| event in a |stream:handleEvent:| message. At this point the delegate should dispose of the stream object by doing the mirror-opposite of what it did to prepare the object. In other words, it should first close the stream object, remove it from the run loop, and finally release it. However, I have a system with which a server send back a notification when a client registers that it want to get some notification to the server. For the system, a stream or a channel which requested the notification should be remained open to get notifications from the server afterwards. Under this scenario, can't I use the Run-Loop based meachanism? is there any way to keep the stream open? Thanks, JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] How to let the pasteboard know a file type?
Hello. I found out that NSCreateFilenamePboardType() would help. So, I
tried it like :
My code example is :
In awakeFromNib
NSString
http://developer.apple.com/documentation/Cocoa/Reference/Foundation/ObjC_classic/Classes/NSString.html
*quicktimeFileNamesPboardType = NSCreateFilenamePboardType(@mov);
[myNSTableView registerForDraggedTypes:[NSArray
http://developer.apple.com/documentation/Cocoa/Reference/Foundation/ObjC_classic/Classes/NSArray.html
arryWithObject:quickTimeFileNamesPboardType]];
In -tableView:writeRowsWithIndexes:toPasteboard:
NSString
http://developer.apple.com/documentation/Cocoa/Reference/Foundation/ObjC_classic/Classes/NSString.html
*quicktimeFileNamesPboardType = NSCreateFilenamePboardType(@mov);
anIndex = [selectedRowsIndexSet firstIndex];
while( anIndex != NSNotFound )
{
fileName = [NSString
http://developer.apple.com/documentation/Cocoa/Reference/Foundation/ObjC_classic/Classes/NSString.html
stringWithFormat:@%@/%...@.mov, configPath, [[dataArray objectAtIndex:anIndex]
name]];
[fileNamesArray addObject:fileName];
// Next index
anIndex = [selectedRowIndexSet indexGreaterThanIndex:anIndex];
}
[pboard declareTypes:[NSArray
http://developer.apple.com/documentation/Cocoa/Reference/Foundation/ObjC_classic/Classes/NSArray.html
arrayWithObjects:quicktimeFilenamesPboardType, nil] owner:nil];
isSuccessful = [pboard setPropertyList:fileNamesArray
forType:quicktimeFilenamesPboardType];
...
When I check what information is exported from my program with the Drag
Peeker X, it shows :
Item Reference: 19884c10
Item Bounds (tlbr): { 86, 1, 104, 191 }
Number of flavors: 0
Strangely, it doesn't have any flavor of data.
Is there anything wrong how I use the NSCreateNSFilenamePboardType? How
to use it properly?
Thank you in advance.
P.S. By the way, is it normal to put 'furl' and 'hfs' flavor when
NSFilenamesPboardType is used? Because an array of file names are added
to the pasteboard, I thought that only file name strings were added. But
it turned out no-so-true.
JongAm Park wrote:
Hi,
Thanks to a utility program, called DragPeeker X, I found out some
clue why the FCP treated dragged file as a file with unknown type.
When I dragged the same file from the Finder to the FCP, it shows :
Number of Items: 1
1. Item Reference: 19884c10
Item Bounds (tlbr): { 86, 1, 104, 191 }
Number of flavors: 2
1.Flavor Type: 'furl'
Flavor Flags: 0
Length: 54
Data:
66 69 6C 65 3A 2F 2F 6C 6F 63 61 6C 68 6F 73 74
file://localhost
2F 56 6F 6C 75 6D 65 73 2F 31 37 32 2E 31 36 2E
/Volumes/172.16.
32 34 36 2E 31 34 36 2F 4D 4F 56 2F 30 30 30 33
246.146/MOV/0003
59 42 2E 6D 6F 76
YB.mov2.Flavor Type: 'hfs '
Flavor Flags: 300
Length: 80
Data:
4D 6F 6F 56 3F 3F 3F 3F 00 00 FF 98 00 00 00 13
MooV
0A 30 30 30 33 59 42 2E 6D 6F 76 DC 00 00 00 00
.0003YB.mov.
FF FF FF FF 00 00 00 00 00 25 F0 A0 A0 31 60 34
.%...1`4
91 F6 C0 A0 BF FF DA 80 84 04 20 42 91 F6 6B 44
.. B..kD
91 F6 C0 A0 00 86 B4 00 17 BB 17 FC BF FF DA C4
But if I drag one from my application to the FCP, it shows :
Number of Items: 1
1. Item Reference: c0c0a
Item Bounds (tlbr): { 219, 244, 219, 244 }
Number of flavors: 2
1.Flavor Type: 'furl'
Flavor Flags: 0
Length: 54
Data:
66 69 6C 65 3A 2F 2F 6C 6F 63 61 6C 68 6F 73 74
file://localhost
2F 56 6F 6C 75 6D 65 73 2F 31 37 32 2E 31 36 2E
/Volumes/172.16.
32 34 36 2E 31 34 36 2F 4D 4F 56 2F 30 30 30 33
246.146/MOV/0003
59 42 2E 6D 6F 76
YB.mov2.Flavor Type: 'hfs '
Flavor Flags: 0
Length: 80
Data:
00 00 00 00 00 00 00 00 00 00 FF 98 00 00 00 13
0A 30 30 30 33 59 42 2E 6D 6F 76 FC 00 25 DB A0
.0003YB.mov..%..
00 00 00 06 00 18 80 00 00 00 00 60 00 25 8E B0
...`.%..
90 10 7A 44 BF FF DA 70 44 04 20 42 90 10 7D EC
..zD...pD. B..}.
00 00 00 02 BF FF DA 90 00 00 00 20 BF FF DC F4
...
( I also tried NSURLPboardType and NSFileContentsPboardType. But they
didn't make information like above appear. )
The PboardType I used was NSFilenamesPboardType.
The major difference between those are in the 2nd flavor type 'hfs'.
Their flavor flags are different: one is 300, while the other is 0.
What actually matters, I think, is the data of the 2nd flavor.
The one using the Finder starts with MooV, which says that the
dragged item is a QuickTime movie, while the one from my application
doesn't contain
[Fwd: Re: [Q] How to let the pasteboard know a file type?]
Because my previoius post contains extra href link, it was not readable.
So, I am posting it by removing all format.
Original Message
Hello. I found out that NSCreateFilenamePboardType() would help. So, I
tried it like :
My code example is :
In awakeFromNib
NSString *quicktimeFileNamesPboardType = NSCreateFilenamePboardType(@mov);
[myNSTableView registerForDraggedTypes:[NSArray
arryWithObject:quickTimeFileNamesPboardType]];
In -tableView:writeRowsWithIndexes:toPasteboard:
NSString *quicktimeFileNamesPboardType = NSCreateFilenamePboardType(@mov);
anIndex = [selectedRowsIndexSet firstIndex];
while( anIndex != NSNotFound )
{
fileName = [NSString stringWithFormat:@%@/%...@.mov, configPath,
[[dataArray objectAtIndex:anIndex] name]];
[fileNamesArray addObject:fileName];
// Next index
anIndex = [selectedRowIndexSet indexGreaterThanIndex:anIndex];
}
[pboard declareTypes:[NSArray
arrayWithObjects:quicktimeFilenamesPboardType, nil] owner:nil];
isSuccessful = [pboard setPropertyList:fileNamesArray
forType:quicktimeFilenamesPboardType];
...
When I check what information is exported from my program with the Drag
Peeker X, it shows :
Item Reference: 19884c10
Item Bounds (tlbr): { 86, 1, 104, 191 }
Number of flavors: 0
Strangely, it doesn't have any flavor of data.
Is there anything wrong how I use the NSCreateNSFilenamePboardType? How
to use it properly?
Thank you in advance.
P.S. By the way, is it normal to put 'furl' and 'hfs' flavor when
NSFilenamesPboardType is used? Because an array of file names are added
to the pasteboard, I thought that only file name strings were added. But
it turned out no-so-true.
JongAm Park wrote:
Hi,
Thanks to a utility program, called DragPeeker X, I found out some
clue why the FCP treated dragged file as a file with unknown type.
When I dragged the same file from the Finder to the FCP, it shows :
Number of Items: 1
1. Item Reference: 19884c10
Item Bounds (tlbr): { 86, 1, 104, 191 }
Number of flavors: 2
1.Flavor Type: 'furl'
Flavor Flags: 0
Length: 54
Data:
66 69 6C 65 3A 2F 2F 6C 6F 63 61 6C 68 6F 73 74
file://localhost
2F 56 6F 6C 75 6D 65 73 2F 31 37 32 2E 31 36 2E
/Volumes/172.16.
32 34 36 2E 31 34 36 2F 4D 4F 56 2F 30 30 30 33
246.146/MOV/0003
59 42 2E 6D 6F 76
YB.mov2.Flavor Type: 'hfs '
Flavor Flags: 300
Length: 80
Data:
4D 6F 6F 56 3F 3F 3F 3F 00 00 FF 98 00 00 00 13
MooV
0A 30 30 30 33 59 42 2E 6D 6F 76 DC 00 00 00 00
.0003YB.mov.
FF FF FF FF 00 00 00 00 00 25 F0 A0 A0 31 60 34
.%...1`4
91 F6 C0 A0 BF FF DA 80 84 04 20 42 91 F6 6B 44
.. B..kD
91 F6 C0 A0 00 86 B4 00 17 BB 17 FC BF FF DA C4
But if I drag one from my application to the FCP, it shows :
Number of Items: 1
1. Item Reference: c0c0a
Item Bounds (tlbr): { 219, 244, 219, 244 }
Number of flavors: 2
1.Flavor Type: 'furl'
Flavor Flags: 0
Length: 54
Data:
66 69 6C 65 3A 2F 2F 6C 6F 63 61 6C 68 6F 73 74
file://localhost
2F 56 6F 6C 75 6D 65 73 2F 31 37 32 2E 31 36 2E
/Volumes/172.16.
32 34 36 2E 31 34 36 2F 4D 4F 56 2F 30 30 30 33
246.146/MOV/0003
59 42 2E 6D 6F 76
YB.mov2.Flavor Type: 'hfs '
Flavor Flags: 0
Length: 80
Data:
00 00 00 00 00 00 00 00 00 00 FF 98 00 00 00 13
0A 30 30 30 33 59 42 2E 6D 6F 76 FC 00 25 DB A0
.0003YB.mov..%..
00 00 00 06 00 18 80 00 00 00 00 60 00 25 8E B0
...`.%..
90 10 7A 44 BF FF DA 70 44 04 20 42 90 10 7D EC
..zD...pD. B..}.
00 00 00 02 BF FF DA 90 00 00 00 20 BF FF DC F4
...
( I also tried NSURLPboardType and NSFileContentsPboardType. But they
didn't make information like above appear. )
The PboardType I used was NSFilenamesPboardType.
The major difference between those are in the 2nd flavor type 'hfs'.
Their flavor flags are different: one is 300, while the other is 0.
What actually matters, I think, is the data of the 2nd flavor.
The one using the Finder starts with MooV, which says that the
dragged item is a QuickTime movie, while the one from my application
doesn't contain anything. ( all 0's. )
So, is there any way to mark that the interested file is in a
specific type, i.e. QuickTime movie file?
Thank you.
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[Q] How will the Pasteboard manager be changed?
Hello. I'm implementing some logic to enable drag from my application's NSTableView and drop on the Final Cut Pro's project. I found out that it was not possible with NSFilenamesPboardType. When I compared it a dragdrop from the Finder to the FCP, the one between the Finder and the FCP contained fURL and hfs flavors and its hfs flavor data showed that the dragged item was a QuickTime movie, while the one between from my program and the Finder contained same kind of data but its hfs flavor didn't show that it was a QuickTime movie. So, I tried using NSCreateFilenamePboardType( @mov ) and NSCreateFilenamePboardType( (NSString *)kUTTypeQuickTimeMovie ); but they didn't allow the dragdrop. Although the default NSFilenamesPboardType generates fURL and hfs flavor, the one from NSCreateFilenamePboardType() doesn't generate them. So, I started thinking that mechanism using NSCreateFilenamePboardType() is on its way to death. So, I read Apple's document further, and found out that the Carbon's pasteboard manager dropped many functions like something related to flavors. Almost all functions are deprecated, and it gave me feeling that probably the Carbon's pasteboard manager would work like that of Cocoa. (Well, eventually Carbon would die, but.. at least 64bit support on the Carbon and GUI support look so. ) So, I wonder if I really give up dragdrop from my application and the FCP. The FCP looks like a Carbon app. So, I may need to write carbon code to put hfs flavor. But I doubt if it is worth while to doing so. So, can anyone tell me how the Carbon's pasteboard manager will change, and why Cocoa's pasteboard manager doesn't reveal some methods which handles flavors easily? Probably flavors are being deprecated also? ( Although there should be some similar mechanism.. ) I will appreciate any comment. Thank you. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] How will the Pasteboard manager be changed?
Thanks for your comment. Although the AppKit supports UTIs, but I couldn't find a way to generate pasteboard type for 'hfs'. So, probably for this, I think Carbon functions should be used. There are only two functions in the AppKit for making file type specific Pboard : NSCreateFileContentsPboardType() and NSCreateFilenamePboardType(). Although NSFilenamesPboardType yield 'fURL' and 'hfs' flavors, using returned string by calling NSCreateFileContentsPboardType() doesn't generate any flavors. So, I had to find a way to generate the 'hfs' using the Cocoa, but I guess I need to use Carbon functions. By the way, can the Pasteboard type and NSPasteboard be intermixed like CFStringRef and NSString? Thanks, JongAm Park Jim Correia wrote: On Dec 19, 2008, at 5:39 PM, JongAm Park wrote: So, can anyone tell me how the Carbon's pasteboard manager will change, and why Cocoa's pasteboard manager doesn't reveal some methods which handles flavors easily? Probably flavors are being deprecated also? ( Although there should be some similar mechanism.. ) The preferred, mechanism independent way, to describe types on Mac OS X is to describe them via a Uniform Type Identifier (UTI). Most places in AppKit should transparently support UTIs on 10.5 and later. If you need to interact with the pasteboard on earlier releases, you'll have to drop down to the procedural API in Pasteboard.h. If you have a four char code that you need to represent as a UTI, you can do the conversion using the functions in UTType.h. Jim ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[Q] What type the Final Cut Pro expect when a file is dragdropped to its project?
Hello.
I wrote some codes which will enable dragdrop from my application to
FCP's project.
Before implementing it, I tried dragging and dropping a file from a
Finder to an FCP's project which was opened with the FCP.
After confirming that the FCP supports dragdrop from the Finder, I
started implementing codes like below.
In awakeFromNib
/
// Registering the drag type for Drag Drop support
[mClipTable registerForDraggedTypes:[NSArray
arrayWithObjects:NSFilenamesPboardType,NSURLPboardType, nil]];
// Allow that the drag target or where it drops is other application,
// especially the Final Cut Pro.
[mClipTable setDraggingSourceOperationMask:NSDragOperationEvery
forLocal:NO];
- (BOOL)tableView:(NSTableView *)aTableView
writeRowsWithIndexes:(NSIndexSet *)rowIndexes toPasteboard:(NSPasteboard
*)pboard
{
JALog(@--[Initiation of Drag]--);
JALog(@rowIndexes : %@, rowIndexes);
NSMutableArray *fileNamesArray = [NSMutableArray array];
NSURL *draggedFileURL;
// The pasteboard is for NSFilenamesPboard
[pboard declareTypes:[NSArray arrayWithObjects:NSFilenamesPboardType, NSURLPboardType, nil]
owner:self];
NSString *configPath = [preferenceSetting configPath];
NSIndexSet *selectedRowsIndexSet = [mClipTable selectedRowIndexes];
unsigned int anIndex;
int indexInClipsArray;
NSString *fileName;
anIndex = [selectedRowsIndexSet firstIndex];
while( anIndex != NSNotFound )
{
// For NSFilenamesPboardType
indexInClipsArray = [self getClipsArrayIndex:anIndex];
fileName = [NSString stringWithFormat:@%@/%@, configPath,
[[mClipArray objectAtIndex:indexInClipsArray] longName]];
[fileNamesArray addObject:fileName];
// For NSURLPboardType
draggedFileURL = [[NSURL alloc] initFileURLWithPath:fileName];
[draggedFileURL writeToPasteboard:pboard];
[draggedFileURL release];
// next index
anIndex = [selectedRowsIndexSet indexGreaterThanIndex:anIndex];
}
[pboard setPropertyList:fileNamesArray forType:NSFilenamesPboardType];
return YES;
}
When I drag and dropped a file which is shown in my application to the
FCP, the FCP displayed a dialog box which said File Error: Unknown
file.. Because the paste board type to use is NSFilenamesPboardType, I
populate file names with its path prefixed. But it didn't work.
Also, I tried NSURLPboardType, but it didn't work also.
Two options left are file content and File Promise, but I am not sure if
which one will work.
Can anyone tell me what paste board type the FCP can accept?
Thank you.
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[Q] availableTypeFromArray returns NXFileContentsPboardType instead of NSFileContentsPboardType
Hello, all.
I'm struggling to enable dragdropping to Final Cut Pro's project window
from my application.
While I was trying to figure out how to, I found this strange thing.
NSArray *supportedTypes = [NSArray
arrayWithObject:NSFileContentsPboardType];
NSString *matchingType = [pboard availableTypeFromArray:supportedTypes];
if( [matchingType compare:@NSFileContentsPboardType] == NSOrderedSame )
{
outputFileName = [NSString stringWithFormat:@%@/Desktop/test.mov,
NSHomeDirectory()];
outputFileNameResult = [pboard
readFileContentsType:NSFileContentsPboardType toFile:outputFileName];
}
I expected that the matchingType returned by calling
availableTypeFromArray is @NSFileContentsPboardType.
But, in fact, it returns @NXFileContentsPboardType.
So, it doesn't reach the body of the if clause.
Is this a bug?
For other pboard types, it seems to return NS*PboardType, according to
this document.
http://developer.apple.com/documentation/Cocoa/Reference/ApplicationKit/Classes/NSPasteboard_Class/Reference/Reference.html#//apple_ref/doc/uid/2328-availableTypeFromArray_
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[Q] How to let the pasteboard know a file type?
Hi,
Thanks to a utility program, called DragPeeker X, I found out some clue
why the FCP treated dragged file as a file with unknown type.
When I dragged the same file from the Finder to the FCP, it shows :
Number of Items: 1
1. Item Reference: 19884c10
Item Bounds (tlbr): { 86, 1, 104, 191 }
Number of flavors: 2
1.Flavor Type: 'furl'
Flavor Flags: 0
Length: 54
Data:
66 69 6C 65 3A 2F 2F 6C 6F 63 61 6C 68 6F 73 74
file://localhost
2F 56 6F 6C 75 6D 65 73 2F 31 37 32 2E 31 36 2E
/Volumes/172.16.
32 34 36 2E 31 34 36 2F 4D 4F 56 2F 30 30 30 33
246.146/MOV/0003
59 42 2E 6D 6F 76
YB.mov
2.Flavor Type: 'hfs '
Flavor Flags: 300
Length: 80
Data:
4D 6F 6F 56 3F 3F 3F 3F 00 00 FF 98 00 00 00 13
MooV
0A 30 30 30 33 59 42 2E 6D 6F 76 DC 00 00 00 00
.0003YB.mov.
FF FF FF FF 00 00 00 00 00 25 F0 A0 A0 31 60 34
.%...1`4
91 F6 C0 A0 BF FF DA 80 84 04 20 42 91 F6 6B 44
.. B..kD
91 F6 C0 A0 00 86 B4 00 17 BB 17 FC BF FF DA C4
But if I drag one from my application to the FCP, it shows :
Number of Items: 1
1. Item Reference: c0c0a
Item Bounds (tlbr): { 219, 244, 219, 244 }
Number of flavors: 2
1.Flavor Type: 'furl'
Flavor Flags: 0
Length: 54
Data:
66 69 6C 65 3A 2F 2F 6C 6F 63 61 6C 68 6F 73 74
file://localhost
2F 56 6F 6C 75 6D 65 73 2F 31 37 32 2E 31 36 2E
/Volumes/172.16.
32 34 36 2E 31 34 36 2F 4D 4F 56 2F 30 30 30 33
246.146/MOV/0003
59 42 2E 6D 6F 76
YB.mov
2.Flavor Type: 'hfs '
Flavor Flags: 0
Length: 80
Data:
00 00 00 00 00 00 00 00 00 00 FF 98 00 00 00 13
0A 30 30 30 33 59 42 2E 6D 6F 76 FC 00 25 DB A0
.0003YB.mov..%..
00 00 00 06 00 18 80 00 00 00 00 60 00 25 8E B0
...`.%..
90 10 7A 44 BF FF DA 70 44 04 20 42 90 10 7D EC
..zD...pD. B..}.
00 00 00 02 BF FF DA 90 00 00 00 20 BF FF DC F4
...
( I also tried NSURLPboardType and NSFileContentsPboardType. But they
didn't make information like above appear. )
The PboardType I used was NSFilenamesPboardType.
The major difference between those are in the 2nd flavor type 'hfs'.
Their flavor flags are different: one is 300, while the other is 0.
What actually matters, I think, is the data of the 2nd flavor.
The one using the Finder starts with MooV, which says that the
dragged item is a QuickTime movie, while the one from my application
doesn't contain anything. ( all 0's. )
So, is there any way to mark that the interested file is in a specific
type, i.e. QuickTime movie file?
Thank you.
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Re: [Q] How to add nested items to NSOutlineView?
Thank you for your answer. I found same question asked by other person in Cocoa mailing list. http://www.cocoabuilder.com/archive/message/cocoa/2008/4/7/203440 and an answer refers http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaBindings/Concepts/Troubleshooting.html#//apple_ref/doc/uid/TP40002148-182809 Benjamin Stiglitz wrote: However, if I get reference of an item in existing view and insert new item in its data source, NSMutableArray, it can't display the newly added nested items. I tried NSTreeController's rearragneObjects and the NSOutlineView's reloadItem:reloadChildren, but it doesn't seem to work for me. Can anyone tell me how to add new items? Since you’re using NSTreeController, you should modify the array in a KVO-compatible way. Take a look at http://developer.apple.com/documentation/Cocoa/Reference/Foundation/Protocols/NSKeyValueCoding_Protocol/Reference/Reference.html#//apple_ref/occ/instm/NSObject/mutableArrayValueForKeyPath: -Ben ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[Q] How to add nested items to NSOutlineView?
Hello. I'm writing a Source List View using the NSOutlineView and an NSTreeController. It should work on Mac OS X 10.4 Tiger, so I can't use NSTreeNode. My Source List View is based on Mark Alldritt’s source list view, http://www.latenightsw.com/blog/?p=29. Problem is that when a data source for the view is set up at first, it can even display nested items. However, if I get reference of an item in existing view and insert new item in its data source, NSMutableArray, it can't display the newly added nested items. I tried NSTreeController's rearragneObjects and the NSOutlineView's reloadItem:reloadChildren, but it doesn't seem to work for me. Can anyone tell me how to add new items? Thank you. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: IB plugins
Ken, Step 2 of this section says: In the library window, select the Library IB SDK group. This group contains a single entry, which is a library object template. It is referring to the Interface Builder Kit category of items (as opposed to, for example, the Cocoa or WebKit groups) in the Library window. When I create a new IB project using Xcode, I can't see any files, groups, categories or resources labeled Interface Builder Kit. Which application should I be looking in? Xcode or InterfaceBuilder? If you create a new IB plugin at your end, do you see this Interface Builder Kit category? If not, which of the automatically generated files is it contained in? Hello. The current Interface Builder Plug-in project template contains a bug and I reported it. But you should not have problem in the step you have trouble. For comparison, my project string formatter IB plugin project contains these. I didn't add any new files, except for an image. JAStringFormatter ( the project) - Plugin ( This is a directory for a plugin which will be built ) - Class Descriptions - Classes - Other Sources - Resources - JAStringFormatterLibrary.nib ( This *contains *the *LIBRARY OBJECT!* So, open this one. ) - JAStringFormatterInspector.xib - JAStringFormatter-picture.tif - Framework ( This is a directory for a framework to be built. Other project which will use your plugin will be linked to this framework. ) - Classes - Resources - Products ( will contain built IB plugin and its framework ) - Frameworks ( frameworks which are linked to the your IB plugin/framework) -- Now, if you open your *.nib file which I wrote in red, or commented as (This contains the LIBRARY OBJECT!.. ), you will be able to locate some icons : File's owner, First Responder, Application, Library Object The Library Object there is the one you are mentioning. The document shows the default one, and you can edit it or you can remove it and add a new one. If you want to locate the Library Object, which is IBLibraryObjectTemplate, bring a Library panel under Tools menu of the Interface Builder. Under its Objects tab, and under Library=Cocoa, you will be able to locate Interface Builder Kit. If you click it, there is only one item, Library Template which is subtitled as IBLibraryObjectTemplate. It is the one you want. I hope this clarify your question. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[Q] Which mailing list is for the functions like valloc()?
Hello, all. I think I found a bug in the valloc(). However, before reporting it to Apple, I would like to ask if it is really a bug or if anyone also noticed the problem. So, I tried figuring out what mailing list is for, but couldn't determined it. Can it be here, Cocoa-dev, or others like *Darwin-x86* http://lists.apple.com/mailman/listinfo/darwin-x86 or *Darwin-dev* http://lists.apple.com/mailman/listinfo/darwin-dev? Thanks ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[Q] Custom NSFormatter and IB's Cocoa Simulator
Hello. I tried making my own custom NSFormatter by following the guide, Interface Builder Plug-In Programming Guide However, when I tried my NSFormatter subclass using the Simulate Interface menu item of the Interface Builder, it rasied : An uncaught exception was raised *** - [NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class (JAStringFormatter) *** Terminating app due to uncaught exception 'NSInvalidUncarchiveOperationException', reason: '*** - [NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class (JAStringFormatter)' Can anyone tell me how to solve this problem? Also, I would like to ask if attributedStringForObjectValue:withDefaultAttributes: is really requried to be overriden. The document says, To subclass NSFormatter, you must, at the least, override the three primitive methods:. Thank you in advance. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[Q] How to enable Copy Paste in a text field of a Final Cut Pro plugin window?
How are you doing, all? I wrote a Final Cut Pro plugin which had a few NSTextFields on it. What I figured out is that the Final Cut's Edit=Copy Paste menu are not enabled and it doesn't allow copy and paste text for the text fields on the plugin window. I tried checking how other FxP plugins work and they work Ok with the copy and paste. Can any one explain me how to enable the Copy Paste for my plugin? I checked the First Responder's methods and found copy:, paste:, cut: there. Some plugin like Cinema Tools Audio EDL... has its own menu bar while EDL shares the menu of the FCP. Because my plugin doesn't have menu resource, if there is a way to share the FCP's, it would be better. Thank you. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: [Q] How to enable Copy Paste in a text field of a Final Cut Pro plugin window?
Darrin Cardani wrote: On Sep 5, 2008, at 11:26 AM, JongAm Park wrote: How are you doing, all? I wrote a Final Cut Pro plugin which had a few NSTextFields on it. What I figured out is that the Final Cut's Edit=Copy Paste menu are not enabled and it doesn't allow copy and paste text for the text fields on the plugin window. I tried checking how other FxP plugins work and they work Ok with the copy and paste. Can any one explain me how to enable the Copy Paste for my plugin? I checked the First Responder's methods and found copy:, paste:, cut: there. Some plugin like Cinema Tools Audio EDL... has its own menu bar while EDL shares the menu of the FCP. Because my plugin doesn't have menu resource, if there is a way to share the FCP's, it would be better. What sort of plugin is this? If it's an FxPlug, you can just use a text edit parameter, and it should behave correctly. This has the added bonus of not needing to write your own code to handle an NSTextView. There is no published way for 3rd parties to add menu items to FCP. Darrin -- Darrin Cardani [EMAIL PROTECTED] Hi! Thank you for your reply. By the way, I will not add a custom menu items to the FCP. The Final Cut Pro plugin I'm working on will display a dialog box or a window. There are a few NSTextField, not NSTextView, instance. When a user types some text in the text field instances, he can want to copy/cut and paste text. It was a kind of a free bread for usual Cocoa app. program, but I found out that it was not for the plugin. So, I took a look at other plugins and if it was possible to copy/paste text. There was a plugin, called EDL, in the export menu of the FXP, and it doesn't have its own menu items like Copy, Cut, and Paste. However, the FXP's menu items under the Edit menu were enabled properly. So, I would like to know how to do so. I tried searching about the text edit prarameter mentioned, but I couldn't figure out what it is for and how to use it. FYI, the FXP plugin's super class is NSObject conforms PRODataInterchange protocol. Thank you. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[Q] SFPreferenceView and authorize as admin?
I don't think it is not possible.. but.. does anyone know how to?
Thank you.
Original Message
Subject:[Q] SFPreferenceView and authorize as admin?
Date: Wed, 20 Aug 2008 14:53:34 -0700
From: JongAm Park [EMAIL PROTECTED]
To: cocoa-dev cocoa-dev@lists.apple.com
Hello, all.
Does any of you know how to authorize a user as an admin user using the
SFPreferenceView?
I'm writing a preference pane for the System Preference.
What this custom preference pane does are :
- Display system wide setting, but until a user clicks the lock icon,
a user is not allowed to change it.
When the user clicks the lock icon, it asks ID and password. ( This
is done by the SFPreferenceView. )
- Display user-specific setting and allows changing them
- When the user choose other preference pane, it saves the system-wide
setting and the user-specific setting.
To save the system-wide setting, I used :
CFPreferenceSetValue( CFSTR(System Name, [systemNameField
stringValue], kAppID, kCFPreferencesAnyUser, kCFPreferencesAnyHost );
isSuccessful = CFPreferencesSynchronize( kAppID,
kCFPreferencesAnyUser, kCFPreferencesAnyHost );
Currently the SFPreferenceView is initialized like :
[authView setDelegate:self];
[authView setString:appID_UTF8_CString];
[authView updateStatus:self];
[authView setEnabled:YES];
For being sure, I also obtain the authorization from the authView and
tried setting kAuthorizationRuleAuthenticateAsAdmin.
SFAuthorization *authorization = [authView authorization];
AuthorizationRef authRef = [authorization authorizationRef];
AuthorizationRights *authRights = [authView authorizationRights];
CFStringRef keys[2] = { CFSTR(kAuthorizationRightRuel),
CFSTR(kAuthorizationComment)};
CFStringRef values[2] = {
CFSTR(kAuthorizationRuleAuthenticateAsAdmin), CFSTR(Authorize as
Admin) };
CFDictionaryRef dictRef = CFDictionaryCreate( NULL, (void *)keys,
(void *)values, 2, kCFCopyStringDictionaryKeyCallBacks,
kCFTypeDictionaryValueCallBacks);
// To modify the authorization of the authView, the authRef is used.
result = AuthorizationRightSet( authRef, authRights-items[0].name,
dictRef, CFSTR(Authorize as an admin), NULL, NULL );
Although it returns 1 for the isSuccessful, it doesn't create a plist
file in /Library/Preferences directory for the system-wide setting.
Can anyone help me?
Thank you.
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[Q] Using SFAuthorizationView in a Preference Pane project
How are you doing? I write a sample preference pane in which there are a few text fields and check boxes. They are organized as two groups: one for system-wide setting, and the other for a user-specific setting. I use the SFAuthorizationView for restricting users to access a system-wide setting. However, it should be able to retrieve a system wide setting and display it in grayed-out text in the text fields and set the state of the check boxes in that way. There are two things I would like to do. 1. Without asking a user's ID and password, which is done by the SFAuthorizationView, can it get the system wide setting? It would be nice if a user can see the existing system-wide setting, although they are grayed-out. (Only when a user unlocks the lock icon provided by the SFAuthorizationView, he/she can change the setting.) 2. The system-wide setting doesn't seem to be saved in /Library/Preferences directory, although the user-specific setting is saved in ~/Library/Preferences directory. The code looks like : CFPreferencesSetValue( CFSTR(System Name), [systemNameField stringValue], kAppID, kCFPreferencesAnyUser, kCFPreferencesAnyHost ); isSuccessful = CFPreferencesSynchronize(kAppID, kCFPreferencesAnyUser, kCFPreferencesAnyHost); The isSuccessful contains YES, when the CFPreferencesSynchronize() is called. However, there is no com.GreenLeaf.JAPreferencePaneTest.plist file in /Library/Preferences for the system-wide setting! I checked if the system wide setting is saved in other places already, but I couldn't find it. Can someone give me some advice? Thank you. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[Q] SFPreferenceView and authorize as admin?
Hello, all.
Does any of you know how to authorize a user as an admin user using the
SFPreferenceView?
I'm writing a preference pane for the System Preference.
What this custom preference pane does are :
- Display system wide setting, but until a user clicks the lock icon,
a user is not allowed to change it.
When the user clicks the lock icon, it asks ID and password. ( This
is done by the SFPreferenceView. )
- Display user-specific setting and allows changing them
- When the user choose other preference pane, it saves the system-wide
setting and the user-specific setting.
To save the system-wide setting, I used :
CFPreferenceSetValue( CFSTR(System Name, [systemNameField
stringValue], kAppID, kCFPreferencesAnyUser, kCFPreferencesAnyHost );
isSuccessful = CFPreferencesSynchronize( kAppID,
kCFPreferencesAnyUser, kCFPreferencesAnyHost );
Currently the SFPreferenceView is initialized like :
[authView setDelegate:self];
[authView setString:appID_UTF8_CString];
[authView updateStatus:self];
[authView setEnabled:YES];
For being sure, I also obtain the authorization from the authView and
tried setting kAuthorizationRuleAuthenticateAsAdmin.
SFAuthorization *authorization = [authView authorization];
AuthorizationRef authRef = [authorization authorizationRef];
AuthorizationRights *authRights = [authView authorizationRights];
CFStringRef keys[2] = { CFSTR(kAuthorizationRightRuel),
CFSTR(kAuthorizationComment)};
CFStringRef values[2] = {
CFSTR(kAuthorizationRuleAuthenticateAsAdmin), CFSTR(Authorize as
Admin) };
CFDictionaryRef dictRef = CFDictionaryCreate( NULL, (void *)keys,
(void *)values, 2, kCFCopyStringDictionaryKeyCallBacks,
kCFTypeDictionaryValueCallBacks);
// To modify the authorization of the authView, the authRef is used.
result = AuthorizationRightSet( authRef, authRights-items[0].name,
dictRef, CFSTR(Authorize as an admin), NULL, NULL );
Although it returns 1 for the isSuccessful, it doesn't create a plist
file in /Library/Preferences directory for the system-wide setting.
Can anyone help me?
Thank you.
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Re: [Q] is NSFileHandle's writeData method faster than the FSWriteFork?
Thank you very much for the valuable information. I will try the 1st and the 3rd options, because the 2nd option will not be easily applicable withouth refactoring the current code a lot. Thank you again, Regards, JongAm Park On Aug 2, 2008, at 7:51 AM, James Bucanek wrote: JongAm Park mailto:[EMAIL PROTECTED] wrote (Friday, August 1, 2008 7:27 PM -0700): The function will write about 19200 bytes per every call. I'm going to write XDCAM 35 or 50 video data. What is curious was that saving files as QuickTime movie format from the Final Cut Pro takes about 20 secs for 1 minutes of XDCAM 35 video source, but if it does so using a FCP plug-in of which source codes I work with takes about 35 seconds. There is a call back function which is called by th FCP, and I even tried converting it to multithreaded version, but it is still much slower than the FCP's own scheme. I measured the performance and found out that the most of the time were spent with the FSWriteFork() function. Probably other parts should be streamlined also, but it would impact significantly if the file write can be faster. Writing 19,200 bytes per call is going to add a significant amount of overhead. FSWriteFork() can be blindingly fast, but degrades when given small and/or misaligned chunks of data to deal with. In my experience, the keys to making FSWriteFork() fly are - Align the data to be written in memory to page boundaries (man valloc). - Write data in multiples of page size blocks (man getpagesize) - Turn off caching (see Cache Constants of FSWriteFork) This allows FSWriteFork to avoid maintaining and copying your data into a buffer, which then gets written to disk in pieced. If all of the above prerequisites are met, the file system can perform a DMA transfer directly from your address space to the disk controller. In my application, I was primarily interested in increasing read performance. Aligning the data buffers and reading large blocks (2MB) at a time more than doubled the read performance while simultaneously dropping CPU overhead. Ultimately, I ended up creating a separate thread to read the data from the file into a set of circular buffers, while a second thread processed the data that had already been read. Between the faster I/ O and the reduced CPU overhead (which could then be utilized by the thread processing the data) I was able to improve the performance of my application by 350%. -- James Bucanek ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[Q] is NSFileHandle's writeData method faster than the FSWriteFork?
Hello.. I have some codes which were written in Carbon and we want to make its performance faster. I found out that most of the time is spent by a series of FSWriteFork() function. So, I would like to use any method which is faster than that. fwrite is one option but I also looked up a Cocoa method, writeData message of the NSFileHandle. Does anyone know if the writeData's performance compared to the FSWriteFork()? Or can anyone suggest other methods to take? Thank you. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: [Q] is NSFileHandle's writeData method faster than the FSWriteFork?
Thank you, Jens Alfke for your reply.
The function will write about 19200 bytes per every call. I'm going
to write XDCAM 35 or 50 video data.
What is curious was that saving files as QuickTime movie format from
the Final Cut Pro takes about 20 secs for 1 minutes of XDCAM 35 video
source, but if it does so using a FCP plug-in of which source codes I
work with takes about 35 seconds. There is a call back function which
is called by th FCP, and I even tried converting it to multithreaded
version, but it is still much slower than the FCP's own scheme.
I measured the performance and found out that the most of the time
were spent with the FSWriteFork() function.
Probably other parts should be streamlined also, but it would impact
significantly if the file write can be faster.
Thank you.
On Aug 1, 2008, at 6:04 PM, Jens Alfke wrote:
On 1 Aug '08, at 3:33 PM, JongAm Park wrote:
I have some codes which were written in Carbon and we want to make
its performance faster.
I found out that most of the time is spent by a series of
FSWriteFork() function. So, I would like to use any method which
is faster than that.
fwrite is one option but I also looked up a Cocoa method,
writeData message of the NSFileHandle.
All of those end up going through the same filesystem calls
('write', primarily) in the kernel, so one's not going to be faster
than another. I would expect fwrite to be a tiny bit slower because
of the extra buffering that stdio does, and NSFileHandle will also
be a little slower because of the overhead of calling Objective-C
methods. But generally that wouldn't be noticeable.
What really makes a difference is how much data you write on each
call — the more the better. It may also help to use uncached
writes, if the file's not going to be read again soon.
The fs_usage tool can help you see what filesystem calls you're
making and how much data is being sent in every call.
—Jens
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[Q] [NSValue valueWithBytes: objCType:]
recover message's point of view, it is declared in the stack area of other message! ) There are couple of interesting things, anyway. 1. Whether the dataDesc is statically declared or not, although it is freed in the end of the encode action handler, it is still maintained and could be accessed from another message, recover. And with the Memory browser, I could confirm that the memory content was still there. Why is it so? Does the NSData or NSArray just retains them? 2. However, when I intentionally bzero it, the content is nullified, and the recover message sees the content as zeros. So, it is not caches in the NSArray. It seems to me that it just uses by referencing. 3. Should they be also freed in the recover function although it is done so in the encode action handler? 4. Should the dataDesc also be transformed separately as the data is? 5. for the data, I used dataWithBytes: length: thinking that it will copy the contents, instead of just referencing the original. However, it turns out that it just references it. I figured that out by bzeroing the original, and how it is seen in the recover function. There is another message, dataWithBytesNoCopy:length:. It made me think that the dataWithBytes:length copies, while the dataWithBytesNoCopy:length just references it. The explanation on the dataWithBytes:length: is : The number of bytes to 'copy' from bytes. But as I described, it doesn't seem to copy. Can anyone help me? Thank you. JongAm Park ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: [Q] [NSValue valueWithBytes: objCType:]
Hello. Well, I did review the code as usual. It is interesting that the exactly same memory blocks were allocated for the interested data and dataDesc. So, it looked like that it is referenced, although they were not. Thanks. Jens Alfke wrote: Something's fundamentally wrong with your code, in that data you think you're copying is really just being referenced through a pointer. I'm sorry, but you posted a lot of stuff and I'm not going to read through it all to debug it for you. You need to do some code review on your own. —Jens ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: [Q] Any document that shows differences of Cocoa, programmiing for Mac and for the iPhone/iPod touch?
Thanks for the reply, Mr. Arentz. Yeah.. I read the document but it doesn't really give me some idea on why it is made and why we need to use it. Until the Tiger, views in a NIB file could be loaded, couldn't it? So, I agree with your last comment. :) The NSViewController documentation does a good job. The Overview section outlines three things that the NSViewController will handle for you. I have not used the NSViewController in my project. But I think it is mostly useful when you want to load a (custom) view from a NIB/XIB file and hook it up to a bindings enabled data source. For me the class reference is a bit dry. I would love to read more in the style of WHY you would want to use a certain class. A more pragmatic 'recipe' style documentation. S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: [Q] Any document that shows differences of Cocoa, programming for Mac and for the iPhone/iPod touch?
Oh.. Thank you very much for the links. Actually I know the KATI blog. I even bookmarked it before, but I didn't noticed the article! I found her blog from flickr link at Cocoa Head LA! http://www.flickr.com/photos/kepi/2586194046/ What is more interesting here is that our beloved phone from a stripestar and a fruit company seems to be heavily modeled on the sibling of NSViewController, and I was curious if the design of Cocoa for the desktop also moves to that direction. From: Stefan Arentz [EMAIL PROTECTED] Just found this, should be interesting for other people ... http://katidev.com/blog/2008/04/09/nsviewcontroller-the-new-c-in-mvc-pt-1-of-3/ http://katidev.com/blog/2008/04/17/nsviewcontroller-the-new-c-in-mvc-pt-2-of-3/ http://katidev.com/blog/2008/05/26/nsviewcontroller-the-new-c-in-mvc-pt-3-of-3/ S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[Q] Any document that shows differences of Cocoa programming for Mac and for the iPhone/iPod touch?
Hello, all.
Because the final SDK for the iPhone came out, I started to take a look
at it.
Although I knew that Window/View hierarchies are different on the Mac
and the iPhone, I found that there were some fundamental difference in
programming model.
For example, this code from
http://developer.apple.com/iphone/gettingstarted/docs/creatingiphoneapps.action,
it creates a view controller and add its view as a window's sub view.
Listing 2. Creating the content view
- (void) applicationDidFinishLaunching:(UIApplication *)application
{
// Set up the view controller
UIViewController *aViewController = [[UIViewController alloc]
initWithNibName:@MoveMeView
bundle:[NSBundle
mainBundle]];
self.viewController = aViewController;
[aViewController release];
// Add the view controller's view as a subview of the window
UIView *controllersView = [viewController view];
[window addSubView:controllersView];
[window makeKeyAndVisible];
}
However, for the Mac, something like the view controller was not
necessary, right? and a content view is not added manually like the code
above. ( I don't mean that Oh, there is no UIViewController and
UIView. I know that those are made for the iPhone. )
When a window and its view are made using the Interface Builder, they
were handled automatically for the Mac.
Isn't this true for the iPhone?
(Well, I just looked up NSViewController document and it says that it
was added to the Leopard.
Is there any document which explains why it is added and how the
programming model is changed due to the addition of it? )
Thank you.
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Re: [Q] Any document that shows differences of Cocoa programming for Mac and for the iPhone/iPod touch?
I'm sorry. I thought that the announcement of the final Xcode 3.1 also covered the iPhone SDK issue automatically. Thanks for reminding me of that. Waqar Malik wrote: http://lists.apple.com/archives/Xcode-users/2008/Jul/msg00276.html Still under NDA. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[Q] How to add Find feature for an NSTextView?
Hello.
I'm trying to write codes that searches a given text in an NSTextView.
Currently, a window has an NSSearchField and an NSTextView. Some text
will be loaded into the NSTextView and I expect users type into the
NSSearchField to search some words in the NSTextView.
I connected -(IBAction)searchSource:(id)sender to the NSSearchField.
-(IBAction)searchSource:(id)sender
{
NSString *searchString = [searchField stringValue];
NSRange stringRange = NSMakeRange(0, [searchString length] );
// xmlSourceView is the NSTextView in which the given string will be
searched
[xmlSourceView showFindIndicatorForRange:stringRange];
[xmlSourceView performFindPanelAction:self];
}
According to the document, the performFindPanelAction performs some
actions based on its tag.
However, there is no explanation how to set the tag.
Also, I tried Command-F to display a Find dialog box, but all of its
buttons are disabled.
I thought Find feature was automatically enabled without writing any
code before, but it doesn't work for me now.
Can anyone help me?
Thank you.
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[Q] How to highlighted text remained as highlighted?
Hello. With the Safari, when users search some text in a HTML document, the found text is remained highlighted until they click Done button. I tried using the showFindIndicatorForRage for NSTextView, but the yellow highlight just disappears after it blinks. Is there any way to leave it highlighted? Thank you. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: [Q] How to highlighted text remained as highlighted?
Oh.. I see. Thank you for the information. On Jul 9, 2008, at 4:14 PM, Douglas Davidson wrote: On Jul 9, 2008, at 4:07 PM, JongAm Park wrote: With the Safari, when users search some text in a HTML document, the found text is remained highlighted until they click Done button. I tried using the showFindIndicatorForRage for NSTextView, but the yellow highlight just disappears after it blinks. Is there any way to leave it highlighted? There is no support for Safari-style highlighting. Various forms of highlighting were considered, and the one implemented is the one considered to be appropriate for most NSTextView usage. Douglas Davidson ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[Q] Status Bar icon and Tiger
Hello, all. Can anyone help me to figure out an issue regarding to a status menu width issue on Tiger? The project I work on is for the Tiger and the Leopard. I used this code to set an icon, which is longer horizontally than vertically, and it worked on the Leopard. NSStatusBar *statusBar = [NSStatusBar systemStatusBar]; // Because it is a eps version of our company's name, it is longer horizontally. So, I used // NSVariableStatusItemLength instead of NSSquareStatusItemLength statusBarItem = [[statusBar statusItemWithLength: NSVariableStatusItemLength] retain]; [statusBarItem setImage:inactiveCompanyImage]; [statusBarItem setEnabled:YES]; [statusBarItem setToolTip:@Blah blah..]; [statusBarItem setHighlightMode:YES]; It works nicely with the Leopard, but our support team people say that it doesn't with the Tiger. I'm suspicious if they use a small status bar program for displaying CPU temperature, etc. (During the ToolBox era, I noticed such a case.. ) I would appreciate any help. Thank you. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[Q] Regression of setSize for NSImage?
Hello, all. On the Leopard, I set a status bar item an icon with an eps image. Because the eps image is somewhat big, I used the NSImage's size method to retrieve the size and multiplied by 0.3 for its width and height. And setSize method is called for the NSImage. It works well on a Leopard machine, but on a Tiger it doesn't resized. According to the document, the setSize has existed from 10.0.0. Is this a bug? regression? Thank you. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: [Q] Status Bar icon and Tiger
Hello. Thanks for your comment. The problem is about scaling. So, on a leopard, the big eps image was scaled to its 30% size correctly, but on a Tiger, it doesn't. it seems to be displayed as is. (Peter Ammon, I'm sorry that I posted somewhat half-written inquiry. I hit a return key while I was moving my stuff. ) A screenshot taken on a Tiger is attached, so I hope it would reveal the problem. Thank you. inline: Snapshot 2008-07-01 13-21-01.tiff___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: [Q] Status Bar icon and Tiger
Hello. Thanks for your comment. The problem is about scaling. So, on a leopard, the big eps image was scaled to its 30% size correctly, but on a Tiger, it doesn't. it seems to be displayed as is. (Peter Ammon, I'm sorry that I posted somewhat half-written inquiry. I hit a return key while I was moving my stuff. ) A screenshot taken on a Tiger is attached, so I hope it would reveal the problem. Thank you. inline: Snapshot 2008-07-01 13-21-01.tiff___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
