Re: Embedding resources in Static Cocoa Library
On Oct 9, 2012, at 1:00 AM, Simone Tellini wrote:
this is way overkill. You can simply write a simple utility to dump the
content of your resource in a C file:
static char foo[] = {
0x01, 0x02, 0x03,
...
};
You don't need to use assembly nor to create bogus functions to get the
address of foo.
Oops… You haven't caught the idea… Everybody knows how to create a _data_ but
I've described, how to _embed_ data into the _code_ segment. This way can be
used if it's necessary to hide some data against patching.
This code sample is related to software protection area.
Best regards,
Alexander
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Re: Embedding resources in Static Cocoa Library
On Oct 7, 2012, at 1:00 AM, koko k...@highrolls.net wrote: I want to make a static cocoa library that is an NSTableView and allots data is contained in the library. I want images in the rows of the table. Where would one get these images as their is no bundle where that can be stored? Or the question is where are resources for a static coco library stored? All suggestions here are reduced to an external file (bundle) usage. Just for a case, if you really wish to store any data (non-executable code, like images, etc.) within the executable (regardless of the type: the main project, a static library, a dynamic library) there is a way to do it. But you'll need to know how to use assembler in the Cocoa project. If you know it, this way is for you. I used it in my Windows project, but never in Cocoa. AFAIK, you need to create a .s file and add it to your Xcode sources. Then Xcode will know what to do with this file. And you need to write something like this within the .s file: .text .globl _MyFunc pushl %ebx callL1 jmp L2 .align 1 .byte 0x0,0x1,0x2,0x3,0x4 .byte 0x5,0x6,0x7,0x8,0x9 L1: popl%eax movleax, ebx pushl %eax ret L2: addl5, %ebx movl%ebx,%eax popl%ebx ret As a result, you'll have the address of the embedded information in the eax register. I.e. you just need to create the function declaration like this one: (void *) myFunc(void); and call it. Hope this code is close to correct one, as I never dealt with Mac OS assembler. And please take it into account, that 5, mentioned in the code above, means the size of the jmp L2 instruction, which is five in 32-bit assembler, but it will take nine bytes in the 64-bit one. And of course, I'm talking only about x86/64 assembler. Don't know anything about PowerPC one. The only what is left out is how to fill out the .byte with a useful information. Personally I used a specially written simple utility, transcoding any binary file into the fixed length lines of .byte hex codes. You can use decimal or octal codes too. as far as the assembler allows it. HTH! ___ 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: Embedding resources in Static Cocoa Library
On Oct 7, 2012, at 1:00 AM, koko k...@highrolls.net wrote: I want to make a static cocoa library that is an NSTableView and allots data is contained in the library. I want images in the rows of the table. Where would one get these images as their is no bundle where that can be stored? Or the question is where are resources for a static coco library stored? All suggestions here are reduced to an external file (bundle) usage. Just for a case, if you really wish to store any data (non-executable code, like images, etc.) within the executable (regardless of the type: the main project, a static library, a dynamic library) there is a way to do it. But you'll need to know how to use assembler in the Cocoa project. If you know it, this way is for you. I used it in my Windows project, but never in Cocoa. AFAIK, you need to create a .s file and add it to your Xcode sources. Then Xcode will know what to do with this file. And you need to write something like this within the .s file: .text .globl _MyFunc pushl %ebx callL1 jmp L2 .align 1 .byte 0x0,0x1,0x2,0x3,0x4 .byte 0x5,0x6,0x7,0x8,0x9 L1: popl%eax movleax, ebx pushl %eax ret L2: addl5, %ebx movl%ebx,%eax popl%ebx ret As a result, you'll have the address of the embedded information in the eax register. I.e. you just need to create the function declaration like this one: (void *) myFunc(void); and call it. Hope this code is close to correct one, as I never dealt with Mac OS assembler. And please take it into account, that 5, mentioned in the code above, means the size of the jmp L2 instruction, which is five in 32-bit assembler, but it will take nine bytes in the 64-bit one. And of course, I'm talking only about x86/64 assembler. Don't know anything about PowerPC one. The only what is left out is how to fill out the .byte with a useful information. Personally I used a specially written simple utility, transcoding any binary file into the fixed length lines of .byte hex codes. You can use decimal or octal codes too. as far as the assembler allows it. HTH! ___ 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: NSFileHandle readInBackground vs threading?
On 09.11.2011, at 19:25, Scott Ribe wrote: I'm not arguing the OP isn't seeing data lost, just that it cannot be happening the way he thinks it is if he's using any normal networking calls. Thanks to everybody for your useful comments! My local socket is opened in the client process just as socket(AF_LOCAL, SOCK_STREAM, 0) I'm getting the socket file handle, and use it for writing to the host process. I've tested the write process and as far as I can see, the data are written completely. The socket is never blocked by host process. So, I believe I need to dig the sending side. 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
Files DragDrop - target file icon problems
Hi, Everyone, In my Cocoa app, I use file saving by dragdrop into Finder window (Desktop is one particular case). I'm trying to do it just as docs tell me: I use namesOfPromisedFilesDroppedAtDestination message to create a list of files being saved (one file at least) then I create and write real files in the draggedImage:endedAt: just as docs tell me to do it. Files are saved, but the problem is that the file icon is created at the default location but not at the mouse pointer location, when the mouse is released. I've noticed that everything goes correctly, when I save files in the namesOfPromisedFilesDroppedAtDestination message handler. But my files are large and I can't do file saving there, because target Finder window is blocked. Now I create a zero length file (if it not exists) in the namesOfPromisedFilesDroppedAtDestination message handler then save the real file in the draggedImage:endedAt: message. The problem with icon location is resolved now, but another problem appears: Finder somehow remembers the zero-sized state of the file, so its icon is not changed into thumbnail for example for MP4 or MOV files. Standard QuickTime icon is shown instead. Is there any really correct solution to avoid such problems? Thanks 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 arch...@mail-archive.com
NSFileHandle readInBackground vs threading?
Hi, All,
I have a need to read some data from a local socket, which serves for
IPC. And data may come very quickly, so (AFAIU) inner socket buffer
might overflow, so a portion of data might be lost. I don't see a way
how to define an inner system buffer size, so the only I can is to do
my best to read from the socket quickly enough. The problem is that I
need yet to process the incoming data, not only to read them. Now I'm
doing the next:
- (void) readPacket:(NSNotification *)aNotification {
[packetBuffer appendData:[[aNotification userInfo]
objectForKey:NSFileHandleNotificationDataItem]];
[sockFileHandle readInBackgroundAndNotifyForModes:modesArray];
[self processPacket];
}
where packetBuffer is the storage for incoming data and processPacket
is where data are processed.
My question is:
Isn't it better to do it in this way:
- (void) readPacket:(NSNotification *)aNotification {
[packetBuffer appendData:[[aNotification userInfo]
objectForKey:NSFileHandleNotificationDataItem]];
[sockFileHandle readInBackgroundAndNotifyForModes:modesArray];
[self performSelector:@selector(processPacket) withObject:nil
afterDelay:0];
}
Or is the multithreaded processing the only (or at least much better)
solution here? If yes, then may I be sure that NSData appendData (see
above) will never relocate the initial portion of the data buffer, but
only will add new data to the end of buffer? My data processing
routine looks like the next:
len = [packetBuffer length];
ptr = [packetBuffer bytes];
while (len = MIN_PACKET_SZ) {
/// doing something with data pointed by ptr-
ptr += _some_value;
len -= _some_value;
}
So, I need be sure that once reading the ptr, then increasing it, step
by step up to the len value, I'll always have valid data despite of
how many times append data will be called in another thread. What
about this?
Thanks in advance.
-Alex
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Re: NSFileHandle readInBackground vs threading?
On 09.11.2011, at 0:50, Scott Ribe wrote: On Nov 8, 2011, at 9:54 AM, Alexander Bokovikov wrote: I have a need to read some data from a local socket, which serves for IPC. And data may come very quickly, so (AFAIU) inner socket buffer might overflow, so a portion of data might be lost. What makes you think that? If the buffers fill up, writes will block. OK, then the same problem will appear at the other end of the socket. One way or another I need to read from the socket as fast as possible. And I have a real problem now. Sometimes data are lost when they come with high speed. Though I agree, that first I need to investigate what end of the socket has a bottle neck. 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
AuthorizationServices - what is wrong here?
Hi, All,
Here is a piece of code where I'm trying to customize the password
input box.
Nevertheless I can see nothing but generic icon and default prompt text.
The rights are assigned and my helper tool is working correctly.
The problem is just in the interface customization.
Could anybody tell me what I'm doing wrong here?
Thanks in advance.
..
lpath = [launchPath fileSystemRepresentation];
//
AuthorizationItem right = {system.privilege.root,
strlen(lpath),
(void *)lpath,
0};
AuthorizationRights rights = {1, right};
//
char *prompt = My custom prompt text;
iconFile = [[NSBundle mainBundle] bundlePath];
iconFile = [iconFile stringByAppendingPathComponent:@Contents/
Resources/icon.png];
iconPath = [iconFile fileSystemRepresentation];
AuthorizationItem envItem[2];
envItem[0].name = kAuthorizationEnvironmentPrompt;
envItem[0].valueLength = strlen(prompt);
envItem[0].value = prompt;
envItem[0].flags = 0;
envItem[1].name = kAuthorizationEnvironmentIcon;
envItem[1].valueLength = strlen(iconPath),
envItem[1].value = (void *)iconPath,
envItem[1].flags = 0;
AuthorizationItemSet envItems;
envItems.count = 2;
envItems.items = envItem[0];
//
AuthorizationFlags flags = kAuthorizationFlagInteractionAllowed |
kAuthorizationFlagPreAuthorize |
kAuthorizationFlagExtendRights;
//
err = AuthorizationCreate(rights,
envItems,
flags,
authorizationRef);
.
Best regards,
-Alex
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Re: Strange autoreleased with no pool in place message
On 18.04.2010, at 1:59, Ken Thomases wrote: Run Manage Breakpoints Add Symbolic Breakpoint. Type the name of the function to break on. In general, you should familiarize yourself with the Xcode Debugging Guide: http://developer.apple.com/mac/library/documentation/DeveloperTools/Conceptual/XcodeDebugging/ Thank you, though I've found the reason. A friend of mine shared this code snippet with me: #ifdef DEBUG #define NSLog( s, ... ) NSLog( @%s : (%d) %@,__FUNCTION__, __LINE__, [NSString stringWithFormat:(s), ##__VA_ARGS__] ) #else #define NSLog( s, ... ) #endif This macro is helpful when it is in correct hands :) I didn't take it into account that such redefined NSLog can't be used without a NSAutoReleasePool, being previously initialized. Usual NSLog can be used wherever you wish unless it is not using autoreleased objects. For example, NSLog(@Hello); can be inserted wherever you wish, right? I've removed NSLog call from one improper location, and the problem has disappeared. What is interesting, this error didn't lead to crash in 10.5+, but leads to crash in 10.4. Most likely you started an NSThread without putting an autorelease pool in the thread’s main function, or you got a callback on some thread and are making Cocoa calls on it without wrapping your callback in an autorelease pool. Start NSThread even BEFORE main() ? Is it possible? It is possible, with something like +load. It's also possible log lines are somehow out of order. In any case, there's no reason to speculate. The debugger can show you exactly where/when this is happening. As for threads, it's definitely not my case. all my threads are initialized in FreePascal back-end stuff, because FPC doesn't support Cocoa threads for some reason. Of course I'm using NSAutoReleasePool in all Cocoa methods, called from FPC thread procedures. Fortunately this part of my project works OK. 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
Strange autoreleased with no pool in place message
Hi, All, Am trying to debug an app, which crashes in 10.4 when I build it with 10.5 SDK and 10.4 deployment target, but works OK when is built with 10.4 SDK and 10.4 deployment target. All builds are performed in 10.5 I'm getting these lines in crash log: Thread 0 Crashed: 0 libSystem.B.dylib 0x9010c812 _malloc_initialize + 992 1 libSystem.B.dylib 0x90002417 malloc + 29 2 com.apple.Foundation0x927dffbf _NSAPDataCreate + 26 3 com.apple.Foundation0x927df93d NSPushAutoreleasePool + 37 4 com.apple.AppKit0x93274621 NSApplicationMain + 62 .. AFAIU, the problem is in autoreleasing of already released object or something like that. Then I'm running the same app in 10.5, where it is working OK, and look at the console log. I see this line: *** _NSAutoreleaseNoPool(): Object 0x209fa0 of class NSCFString autoreleased with no pool in place - just leaking OK, then I'm launching the app with leaks tool and look what is this 0x209fa0. And what I see is this: # Object Address Category Creation Time Size Responsible Library Responsible Caller 0 0x209fa0 CFString 00:00.235 32 Foundation -[NSPlaceholderString initWithFormat:locale:arguments:] I can't find where it is used. What is strange, this is the first message in the log, appearing even before main(), because I've inserted debug print in main() and I see it later in the log. My OS is 10.5.8 Any ideas, please! ___ 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: Strange autoreleased with no pool in place message
On 18.04.2010, at 1:30, Jens Alfke wrote: On Apr 17, 2010, at 12:18 PM, Alexander Bokovikov wrote: *** _NSAutoreleaseNoPool(): Object 0x209fa0 of class NSCFString autoreleased with no pool in place - just leaking Set a breakpoint at _NSAutoreleaseNoPool and start the app. That should show you where it’s happening. I'm sorry... but how to do it? Where can I find this line? AFAIU, it is out of my source code... Sorry, I'm a newbie... Most likely you started an NSThread without putting an autorelease pool in the thread’s main function, or you got a callback on some thread and are making Cocoa calls on it without wrapping your callback in an autorelease pool. Start NSThread even BEFORE main() ? Is it possible? 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: How to find all clipping siblings for a view?
On 18.04.2010, at 1:29, Jonathan Hess wrote: On Apr 16, 2010, at 10:47 AM, Kyle Sluder wrote: On Fri, Apr 16, 2010 at 10:37 AM, Corbin Dunn corb...@apple.com wrote: You can't control it in IB (short of removing the view and adding it back in). But in code, you can just call - addSubview:positioned:relativeTo: to move views around in the Z order. IB has Send Forward/Backward items on its Layout menu. Whether they work or not is another question entirely... :) They work. You can also change the z-order of a view-hierarchy with drag-and- drop in the document outline view since version 3.1. Of course I used these features of IB. The only what I can tell -- it is very ugly. I'd say, IB is just fails to work with many overlapped objects. For example any imprudent dragging of an overlapping view automatically inserts it into a lower view. And there is no way to return it back but to drag it in the tree-shaped window view. Really this was designed not for overlapping objects... 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: How to find all clipping siblings for a view?
On Friday, April 16, 2010 at 2:40 PM Norbert M. Doerner wrote: NSView *rootView; NSArray *mySubViews rootView = [theWindow contentView]; mySubViews = [rootView subviews]; Thanks, it looks like I've found it. The only question is why Cocoa has no Z-order term? I've read in the doc that it is implicitly defined by the sequence of objects within the [rootView subviews], but it is not the Z-order itself, but the order in which objects are stored in the NIB file. I've tried it and it is working OK for my particular case. Best regards, Alexander ___ 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
How to find all clipping siblings for a view?
Hi, All, For some reason I need to do a job which NSWindow usually does, when it redraws itself (AFAIU) - I need to find all its views, which have z- order higher than my view, then get their bounding rectangles, unite them, subtract from the window content view bounding rectangle and sect the result with my view bounding rectangle. This is because my view uses QuickDraw to redraw itself, but those functions draw on screen directly (AFAIU) and don't take into account other views, located above current view. Could anybody show the right way to go? Thanks 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 arch...@mail-archive.com
Re: How to catch modal window appearance?
On 30.03.2010, at 2:27, Lee Ann Rucker wrote: Well, if you're using runModalForWindow: and relying on it to show the window, it goes away before the method returns, so there is no point in the code after show and before hide. I understand it of course. I told about the window controller class code, not about the calling procedure code. But you can always do makeKeyAndOrderFront: explicitly: [myWindow makeKeyAndOrderFront:self]; // Stuff I need to do [NSApp runModalForWindow:myWindow]. Now I understand it. Initially I believed that there is an appropriate notification to do it. 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: How to catch modal window appearance?
On 26.03.2010, at 23:10, Fritz Anderson wrote: On 26 Mar 2010, at 11:12 AM, Alexander Bokovikov wrote: Is there any notification or NSWindow delegate method, called immediately after the modal window is shown on screen? It looks like windowDidExposed doesn't come to a modal window. Is there any solution? Just to check on the obvious points: * Have you set a delegate for the window, which would receive the windowDidExpose: message? * Have you named the method windowDidExpose: (without d, with :)? Yes, it's all done. That was just a typo in the email. I've copy/ pasted method declaration from the API Reference, so it's written correctly in the project. Nevertheless it is never called. I suppose that the problem is just the same as with other notifications - I need to do some actions to get them from a modal window message loop. But I have no idea of how to do it in this particular case. 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: How to catch modal window appearance?
On 27.03.2010, at 12:48, Ken Thomases wrote: I'm not really sure what you're asking for. A modal window being shown on screen is not something that happens spontaneously _to_ your application, it's something that your application does. So, whatever you want to do after the window is shown, just do it after the point in your code where you show it. I tried to achieve the next effect: some automatic process should be started on the modal window appearance on screen. A popup panel with progress indicator appears, etc. My idea was not to initiate such process from the calling code (where modal window is called from), but do it asynchronously, as soon as the modal window will appear on the screen. Of course, I've solved the problem by calling this process from the calling code just before [NSApp runModalForWindow:] call. But it is not pretty correct from the OOP philosophy point of view, at least as I understand it. What is over my mind is why Apple split main loop and modal loop. I see none of benefits but headaches.. There may be only one modal window at a time, isn't it? 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: How to catch modal window appearance?
On 27.03.2010, at 1:59 PM, Ken Thomases wrote: I can't see how this is either correct or incorrect from the point of view of OOP philosophy. OOP involves encapsulation, separation of concerns, polymorphism, etc. separation of concerns is just the case. I would say it's the other way around: the window's appearance should be in response to the initiation of the process. My modal window's purpose is not just to show this initial process. It's a dialog, which does something more complicated, but this initial process should be completed to activate its subsequent functionality. Of course, we could show this progress before the modal window appearance. But I don't like it. Well, first, you should consider whether a modal window is the best design of your GUI. I would say there's a mild recommendation that they be avoided in favor of document-modal sheets and the like. It's not a document-based app. This dialogue does some thing which can't be shared in time with other functionality. It's just like Save File As... but more complex In MustDie all messages, addressed to the application, go through the window procedure of the modal window. Modal window is the key window, the main window, and whatever you do you do within it. Therefore I don't understand why notifications should be queued in the main loop while they can't be processed by the modal window messages loop. 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: How to catch modal window appearance?
On 27.03.2010, at 16:57, Ken Thomases wrote: separation of concerns is just the case. Except the timing does not impact on separation of concerns. I'm not about timing. I'm just about code separation. Initialization is a part of dialogue, so its window controller is the right place, where this code should be located and where it should be called. But now it is called from the main AppController, where the dialogue is created and where runModalForWindow sits. Usually only initialization methods, using some data from the calling object, should be called from the calling object. At least we must do our best to minimize their number. In my case I have to call a pure inner, I'd even say, private object method from outside of the object code. In my opinion it's not correct, though it's not so meaningful in this particular case. I'm just about a good style. The controller, the C in MVC, should be responsible for the process, whether it is initiated before the window is show or after. Is C the window controller in my case? I believe, it is. If the modal event loop processed all of the same events as the main event loop, then it wouldn't be modal -- the user would be able to do things outside of the modal window, like clicking on buttons in another window, or selecting menus not related to the modal window. So, I don't know how you expect that to work differently. But this has _nothing_ to do with notifications. Of course, I had in mind all events, related to the modal window. All other events should be ignored. But windowDidExpose: notification is related to the window, and it is called after I call runModalForWindow: Isn't it? Then why it doesn't reach my window controller, which is set as a window delegate? Where is the logic? It looks as a bug rather than as a feature... As we saw with NSFileHandle, where necessary it is usually quite easy to ask for an event or runloop source to operate in the modal runloop mode. It's just not a big problem. It seems like you're inventing aggravation for yourself. There was an explicit method how to call a notification, when we talked about NSFileHandle. But In the case of windowDidExpose: I don't see any way how to tell it to Cocoa that I'd like to get this notification. 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: How to catch modal window appearance?
On 27.03.2010, at 19:39, Joanna Carter wrote: Every window is managed by a Controller and it is from this Controller that you can run any process you want, as well as creating and showing a window. This is correct of course, and this was just what I tried to reach for. But I had to call this private code from the main AppController, rather than from a window controller of the modal window. Probably I was not too clear with my terms. I think you are used to Windows programming. Cocoa modal sheets are modal to the owning form, not the whole app. Modal sheet is not so suitable here. Modal sheet is located within the window which owns it. In my case popup window may be larger than parent window. Therefore I've chosen a real modal window. 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: How to catch modal window appearance?
On 27.03.2010, at 20:36, Ken Thomases wrote: The app controller should just send a message to the window controller asking it to do the whole thing. Then, the window controller can create the window, initiate the process, and invoke - runModalForWindow:, in whichever order it prefers. There's no need to expose the inner/private stuff to the app controller, if you think it doesn't belong there. OK, Finally I've come to some understanding. Finally, one extra question. When modal window runloop starts? Does it start after the window is shown on screen or before that? If it starts after window showing then I'd use performSelector:withObject:afterDelay: to be sure that my procedure will start to execute itself when window is already visible. 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
How to catch modal window appearance?
Hi, All, Is there any notification or NSWindow delegate method, called immediately after the modal window is shown on screen? It looks like windowDidExposed doesn't come to a modal window. Is there any solution? 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
NSNotificationCenter and a modal window - a problem
Hi, All, I have a project where a progress of NSTask is indicated through this code: if ([self popup] != nil) anObj = [self popup]; else anObj = self; [[NSNotificationCenter defaultCenter] addObserver:anObj selector:@selector(getData:) name:NSFileHandleReadCompletionNotification object:[[mytask standardError] fileHandleForReading]]; [[NSNotificationCenter defaultCenter] addObserver:anObj selector:@selector(taskTerminated:) name:NSTaskDidTerminateNotification object:mytask]; [[[mytask standardError] fileHandleForReading] readInBackgroundAndNotify]; All is going OK when I have a progress bar in the main window, so anObj = self. But I'd like to use just the same code to show a progress of the same NSTask by a NSProgressIndicator, placed in a modal NSPanel, opened through [NSApp runModalForWindow:]. In this case NSTask is launched and is executed OK, And it does what it should. But none of notifications are going to my popup modal window.At least getData method is never called, as debugger shows it. self is AppController, popup is a subclass of NSWindowController. What is the problem reason? Is it possible to receive notifications in a modal window? 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: NSNotificationCenter and a modal window - a problem [solved]
On 24.03.2010, at 12:48, Ken Thomases wrote: You need to invoke -readInBackgroundAndNotifyForModes: and pass an array of modes which includes NSModalPanelRunLoopMode (or NSRunLoopCommonModes, which includes NSModalPanelRunLoopMode by default). Many thanks! Really I should look at that method, but I looked at the notification center, which has minimum of methods. Don't know why but I decided that this aspect should be taken into account when an observer is added. Now it's obvious for me, that I should look at the notification generator too. NSTask termination is caught without any problems. The problem was just in reading from pipe. 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: Cocoa-dev Digest, Vol 7, Issue 307
On Sat, 13 Mar 2010 at 20:23:40 -0800 Quincey Morris wrote: You might want to choose a different run loop mode, if you have special requirements. NSEventTrackingRunLoopMode is sufficient to allow keystrokes and mouse clicks to be processed, so that you can have a UI (say, Esc key or button) to cancel the procedure if you want. What is the difference between different modes? Is it performance or whatever else? On Sat, 13 Mar 2010 at 22:49:45 -0600 Ken Thomases wrote: You should also see if -beginModalSessionForWindow:/- runModalSession:/-endModalSession: makes sense for your situation. It does require that you can do the time-consuming task in discrete chunks. Do you have in mind that user can close a modal window while this task is executed? OK. I'll disable the Close button of the window and leave Cancel button active. Clicking on Cancel my time-consuming task will be aborted after the nearest iteration. Hope it will be enough. 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
How to show a progress without multithreading?
Hi, All, I have a time-consuming procedure, and I'd like to show its progress. I can't use multi-threading for some technical reason. I'm looking for a way to update a progress indicator from this procedure, As far as I understand my task is to cause message loop processing. And my question is - how to do it? 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
performSelector doesn't work for modal window
Hi, All, Unfortunately NSButton click is called when button is pressed, but not when it is released. Therefore any timeconsumming process, executed on the button click, will keep the button pressed. To avoid it I've decided to use performSelector:withObject:afterDelay: message. This approach works OK for main window, but it doesn't work for a modal popup panel. More exactly, this message is sent only when modal window is closed and NSApplication is returned to the main messages loop. It looks like this is a fundamental Cocoa specifics, though I don't understand it. So, how to send a message to a modal window messages loop? I don't like to use multithreading here, though I will do it if I'll can't find another solution. Any ideas? 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
NSTableView _dataSourceValueForColumn:row: failure
Hi, All. I have a table view in the main window, where it works fine. And have yet another very similar table view in a popup modal panel. where it fails immediately after panel is closed. Debugger shows subj, as the failure point. In both cases dataSource for table view is assigned in the IB statically. The problem disappears if I clear dataSource assignment in the IB and include this assignment into awakeFromNib of the window controller. Also I include [myTableView setDataSource:nil] into -windowWillClose event handler of the same window controller. I tried to manipulate with release when closed option of the window - no effect. What it could be? 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: NSTableView _dataSourceValueForColumn:row: failure
On Thursday, March 11, 2010 at 10:11 PM Fritz Anderson wrote: 1. You don't say what fail means. A crash? What error code? What stack trace? EXC_BAD_ACCESS. Assembler call stack view shows line next to the subj call. OS X 10.5.8 Never tried it in 10.6.X 2. This is all moot, because, as the leading underscore shows, _dataSourceValueForColumn:row: is a private method. It is not meant to be called by anyone but Apple. It is likely that only Apple knows what the preconditions and postconditions for calling it are; and they can change those conditions at any time. Of couse, I never called it directly. I never implemented it. I just _use_ NSTableView. Nothing more. The fact is that it is working nice in the main app, where it is never destroyed explicitly. But it doesn't work correctly in a modal window, which I create and then release. As I've described the only way I've found is to assign the datasource explicitly in awakeFromNib and set it to nil explicitly in windowWillClose handler. Really my question was - is this a known bug, a feature or my mistake? 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: NSTableView _dataSourceValueForColumn:row: failure
On Thursday, March 11, 2010 at 10:29 PM Corbin Dunn wrote: Break on objc_exception_throw. Could you explain it? What does it mean? 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: NSTableView _dataSourceValueForColumn:row: failure
On 11.03.2010, at 23:25, Corbin Dunn wrote:
http://www.corbinstreehouse.com/blog/2008/08/your-most-important-breakpoint-in-cocoa/
I've done what was told there. No difference. I just get
EXC_BAD_ACCESS in XCode status line and debugger's call stack list
shows:
objc_msgSend
- [NSTableView _dataSourceValueForColumn:row: ]
and a long chain is below, but there are no my project lines there.
All lines are from Cocoa itself. It looks like the window requires for
update after dataSource is already released.
This is how I call the modal window:
- (void) doModalWnd{
MyWnd *wnd = [[MyWnd alloc] init];
[[NSApplication sharedApplication] runModalForWindow:[wnd window]];
[wnd release];
}
- (IBAction) myBtnClick:(NSButton *)sender {
[self performSelector:@selector(doModalWnd)
withObject:nil
afterDelay:0];
}
There is such code within MyWnd.m:
- (void)windowWillClose:(NSNotification *)notification {
[[NSApplication sharedApplication] stopModalWithCode:NSCancelButton];
}
Is there anything criminal here?
Thanks.
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Transparent background for controls - some problems
Hi, All,
I'm trying to create a NSView descendent which could draw a custom
bitmap background and which could contain other subviews (like labels
and buttons) . The problem that all goes perfectly unless controls
will change their state or any another event will cause my view
redrawing.
When any control changes its state (e.g. label changes its caption)
its background is drawn in some incorrect way, which you can see here:
http://68.178.246.102/etc/cocoa/test.png
Here an empty label is shown after its caption was changed to . I've
created a special striped background with holes, randomly set to
visualize this effect.
Please note, that initially (on startup) all looks just perfectly.
Here is my code (its essential part) of my custom view, drawing the
background:
Here buf is a temporary NSImage, where rectangular piece is created,
and bg is the original background of the whole NSView in size.
- (void)drawRect:(NSRect)rect {
..
rep = [[[NSBitmapImageRep alloc]
initWithBitmapDataPlanes:nil
reps = [buf representations];
if (reps != nil [reps count] 0)
[buf removeRepresentation:[reps objectAtIndex:0]];
[buf setSize:NSZeroSize];
[buf addRepresentation:rep];
r = rect;
r.origin.x = 0;
r.origin.y = 0;
[buf lockFocus];
[bg drawInRect:r
fromRect:rect
operation:NSCompositeCopy
fraction:1.0];
[buf unlockFocus];
ctx = [NSGraphicsContext currentContext];
[ctx saveGraphicsState];
[ctx setShouldAntialias:YES];
[ctx setPatternPhase:NSMakePoint(0, 0)];
[[NSColor colorWithPatternImage:buf] set];
NSRectFill(rect);
[ctx restoreGraphicsState];
}
I've tried to save both buf and bg as TIFF's and apply buf on bg in
PhotoShop with appropriate shift - all looks exactly, as it should be.
The problem is that some controls, like labels, checkboxes and
buttons, are drawn somehow outside of this procedure. At least I could
not find their rectangles, when I logged rect parameter.
Any help would be appreciated.
Thanks
-Alexander
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Re: NSWindow - makeKeyAndOrderFront problem
Hi, All, I'm sorry for an offtopic, so I'm writing just to close the thread. On 02.03.2010, at 7:37, Andy Lee wrote: If I feel my app should come forward in both cases I do think it should be okay to implement it that way, but there *is* precedent for not activating the app. I'd even say, there were no precedents (I could not find them at least) of doing anything else. Though I can't explain it for myself... On 02.03.2010, at 7:37, Matthew Lindfield Seager wrote: For more guidance see what other popular or Apple apps do (e.g. QuickTime Player, etc) or do some usability testing with some target users. On 02.03.2010, at 7:37, Andreas Mayer wrote: Dragging something onto an application icon - either in the Finder or in the Dock - is an explicit request to bring that application to the front. Dragging something inside another application's window is not. As for something, I could agree, moreover, I'd hate it if iTunes would activate itself each time I drop a link into the playlist. But as for my case, when we can expect nothing but the only result - a playback beginning, it looks as surprise for me, when ALL video players, I saw, behave in the same silent manner -- they do not activate themself. or do some usability testing with some target users. If you do that, please make sure they are actually Mac users, not Windows users sitting in front of a Mac. :P Perhaps I'm still a Windows user :( And as this is rather off-topic for cocoa-dev, I'll leave it at that. I just tried to give some advice. Do what you think is best. It looks like the best modus operandi here is: Lord, grant me the serenity to accept the things I cannot change Thanks to all who answered! Best regards, Alex ___ 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
NSWindow - makeKeyAndOrderFront problem
Hi, All, Perhaps it's my misunderstanding, but I can't activate window title when I apply [mainWindow makeKeyAndOrderFront:nil] to main app window in the performDragOperation dragdrop handler. The content is dropped into the window, and window goes to the top of screen, but its title bar remains to be inactive. I need yet click it to activate it. What is strange, the same message produces required result at some another place of code, where a popup window is closed, and this method is called to activate the same main app window. Any help would be appreciated! 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: NSWindow - makeKeyAndOrderFront problem
On 28.02.2010, at 17:48, jonat...@mugginsoft.com wrote: Try scheduling it for the next iteration of the run loop. [mainWindow performSelector:@selector(makeKeyAndOrderFront:) withObject:nil afterDelay:0.0]; I tried it too as well as performSelectorOnMainThread:(SEL)aSelector withObject:(id)arg waitUntilDone:(BOOL)wait Also I tried to insert these lines into concludeDragOperation: handler. No effect. The window goes to the top, but the title is still inactive and I need to click it to activate it. I believe the problem is covered just in the dragdrop process, as I had no problems with this message at some another place. 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: NSWindow - makeKeyAndOrderFront problem
On 28.02.2010, at 17:48, jonat...@mugginsoft.com wrote: Try scheduling it for the next iteration of the run loop. [mainWindow performSelector:@selector(makeKeyAndOrderFront:) withObject:nil afterDelay:0.0]; It looks like I've understood why it is not working. Here is the message description: his action method moves the receiver to the front of the screen list, within its level, and makes it the key window; that is, it shows the window. What is within its level? What is the level? Does it mean that this message brings a window to front within the same application/process only? If yes, then how to do the same when the process (application is not the active (hasn't keyboard input)? For example, in my case I have Finder's window and my app's window. Finder's window is active. I drop a file into my app's window. And the question is how to switch the global system focus to my app? Then I believe I'll see my app's window in active state, as it's the only window in the application at that moment. Any ideas? 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: NSWindow - makeKeyAndOrderFront problem - solved
On 28.02.2010, at 17:48, jonat...@mugginsoft.com wrote: Try scheduling it for the next iteration of the run loop. [mainWindow performSelector:@selector(makeKeyAndOrderFront:) withObject:nil afterDelay:0.0]; Really the problem was not in the scheduling but just in the scope of the message - it works only within the same process. Therefore what we need to do is to activate the process itself. To do it we must use activateIgnoringOtherApps: message of the NSApplication class. In my case this is the only what is required, as I have only one window, when I drop a file into it. 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: NSWindow - makeKeyAndOrderFront problem
On 28.02.2010, at 22:38, Andreas Mayer wrote: Hm. You don't? Just dragging should not switch the focus to another application. What do you have in mind? Is it incorrect to create such behavior? My app is a player. Dropping file into it I'd expect its activation. Am I wrong? Without activation all visual controls are not reachable unless you'll click the window. This is not a case when user could drop file- by-file into the same window, as I believe. Therefore my app should activate itself after every single file drop. Am I wrong? 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: NSWindow - how to resize it keeping aspect ratio?
On 25.02.2010, at 15:17, Ariel Feinerman wrote:
there is of the matter is that -setAspectRatio: sets the window`s
aspect ratio, but when window has been loaded from nib and not
resized yet, its size is taken from content size that was written
in IB with it own aspect. Then when window has been resized it
instantly get size to conform aspect. Can you suggest something?
In general I don't care about IB settings overriding, as my window
initially has correct aspect ratio. The only my care was about its
manual resizing at runtime. Don't know if this a correct solution or
not, but I've written this code:
- (NSSize)windowWillResize:(NSWindow *)sender toSize:(NSSize)frameSize {
NSRect r;
r = NSMakeRect([sender frame].origin.x, [sender frame].origin.y,
frameSize.width, frameSize.height);
r = [sender contentRectForFrameRect:r];
r.size.height = r.size.width * 422 / 674;
r = [sender frameRectForContentRect:r];
return r.size;
}
And it works perfectly for me. 674 x 422 - is my original content view
size, defined in IB. Unfortunately IB operates by window's content
view size, whereas the message above operates by window's frame size,
which is not the same. Therefore it's required to recalculate the size
between window frame and content view sizes, if we have a care about
content view aspect ratio keeping.
Thanks.
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Re: NSWindow - how to resize it keeping aspect ratio?
On Thursday, February 25, 2010 at 5:57 PM Ariel Feinerman wrote: You calculate view`s aspect from it size, but I mean content frame (not window frame) from constant aspect, for example 4/3, then set size. I don't understand what is the problem. Isn't my 422/674 ratio not a constant? What is a principal difference between it and yours 4/3? Just substitute my digits to whatever you need. You'll get just the same result. This constant, used in the message, will keep the aspect ratio. Now you can (if you wish to) set an initial width of the window (e.g. in the awakeFromNib), and window height will be adjusted respectively. You don't need to store both width and height in the preferences. Just save width. Height will be adjusted automatically. At least it works for me. 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
NSWindow - how to resize it keeping aspect ratio?
Hi, All, I'm sorry if this is a stupid question, but I don't see an evident answer... I need the subj, but don't see appropriate NSWindow method... Am I missing something? Any help would be appreciated. Best regards, Alexander ___ 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
NSView : Background bitmap drawing issue
I've written a subclass of NSView, which draws a NSImage, as the
background. All is working, but the only problem is in different
behavior on different Macs / OS versions. Here is the drawing code:
@interface BGSkinView : NSView {
NSImage *bg;
BOOL isLeo, isSnowLeo;
}
..
- (void)drawRect:(NSRect)rect {
NSGraphicsContext *ctx;
CGFloat y;
ctx = [NSGraphicsContext currentContext];
[ctx saveGraphicsState];
y = [self bounds].size.height;
///
if (!isLeo)
y++;
///
[ctx setPatternPhase:NSMakePoint(0, y)];
//
[[NSColor colorWithPatternImage:bg] set];
NSRectFill([self bounds]);
//
[ctx restoreGraphicsState];
}
isLeo is true on 10.5 and isSnowLeo is true on 10.6
I tested this code on my Mac with both 10.4, 10.5 and 10.6 and have
got a shift of the image for one pixel down on 10.4 and 10.6.
Therefore I've added the condition, selected above. But now I've got a
report from another 10.6 Mac, where my code shifts the background for
one pixel up. Thus, my patch with y++ should be disabled there.
As far as I understand, this effect is caused not by OS version, but
by some graphic subsystem feature. Could anybody tell me, what is this
one-pixel shift? Maybe it's some border, drawn outside of my view,
which I don't see?
Any help would be appreciated.
Thanks.
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Re: NSView : Background bitmap drawing issue
On Monday, February 15, 2010 at 11:50 PM Steve Christensen wrote:
While there could be a drawing but in the OS, it's probably best to rule
out issues with your code first. How do you determine the OS version?
I've used a code from the Net, which adds a category to NSApplication. This
code was tested in both 10.4, 10.5 and 10.6 and works perfectly. No problems
here. Moreover, I've changed the drawing code to make it to be more clear.
My initial goal was just to draw the upper part of background image (the
same for several windows), whereas windows have different height. Therefore
I calculate an offset value, which is used in setPatternPhase, as
[myView bounds].size.height - [myBgImage size].height
And I've tried to exclude version checking from the code. A person, who
reported a bug in 10.6, now tells that all is OK. But I've tested this
version in 10.6 and in 10.4 and in both versions there is a shift for 1
pixel down. It looks like my NSView is shifted for 1 pixel. But its frame
top is zero. Its height is the same in every OS... Just a weird problem...
Best regards,
Alexander
- Original Message -
From: Steve Christensen puns...@mac.com
To: Alexander Bokovikov openwo...@uralweb.ru
Cc: cocoa-dev@lists.apple.com
Sent: Monday, February 15, 2010 11:50 PM
Subject: Re: NSView : Background bitmap drawing issue
While there could be a drawing but in the OS, it's probably best to rule
out issues with your code first. How do you determine the OS version? I
ask because that's the only version-specific test in your drawing code. I
would do something like this to initialize the variables:
double majorOSVersionNumber = floor(NSAppKitVersionNumber);
isLeo = NO;
isSnowLeo = NO;
if (majorOSVersionNumber NSAppKitVersionNumber10_4)
{
if (majorOSVersionNumber NSAppKitVersionNumber10_5)
isSnowLeo = YES;
else
isLeo = YES;
}
You should not being doing tests like if (NSAppKitVersionNumber ==
NSAppKitVersionNumber10_5) since that will only be true for 10.5.0, but
will fail for 10.5.1, 10.5.2, etc. The value of NSAppKitVersionNumber is
incremented by an integer amount for 10.x releases and by a fractional
amount for 10.x.x releases.
On Feb 15, 2010, at 1:26 AM, Alexander Bokovikov wrote:
I've written a subclass of NSView, which draws a NSImage, as the
background. All is working, but the only problem is in different
behavior on different Macs / OS versions. Here is the drawing code:
@interface BGSkinView : NSView {
NSImage *bg;
BOOL isLeo, isSnowLeo;
}
..
- (void)drawRect:(NSRect)rect {
NSGraphicsContext *ctx;
CGFloat y;
ctx = [NSGraphicsContext currentContext];
[ctx saveGraphicsState];
y = [self bounds].size.height;
///
if (!isLeo)
y++;
///
[ctx setPatternPhase:NSMakePoint(0, y)];
//
[[NSColor colorWithPatternImage:bg] set];
NSRectFill([self bounds]);
//
[ctx restoreGraphicsState];
}
isLeo is true on 10.5 and isSnowLeo is true on 10.6
I tested this code on my Mac with both 10.4, 10.5 and 10.6 and have got
a shift of the image for one pixel down on 10.4 and 10.6. Therefore I've
added the condition, selected above. But now I've got a report from
another 10.6 Mac, where my code shifts the background for one pixel up.
Thus, my patch with y++ should be disabled there.
As far as I understand, this effect is caused not by OS version, but by
some graphic subsystem feature. Could anybody tell me, what is this
one-pixel shift? Maybe it's some border, drawn outside of my view, which
I don't see?
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Re: Weird exception
On 24.01.2010, at 14:08, vincent habchi wrote: Under XCode, you select 'run with performance tool' - 'zombies'. This will launch your app with the 'zombie instrument' attached, that will signal you if you app tries to message a released entity. I'm sorry, but I don't see zombies item within Start with Performance Tool menu. I'm using XCode 3.1.4. Also it's not clear how to launch the app. Is it enough to set the target SDK to 10.4 or should I transfer my project into 10.4 system completely, then build it and run? Thanks for your help. ___ 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: Cocoa-dev Digest, Vol 7, Issue 107
On 25.01.2010, at 19:14, James Montgomerie wrote: I think you're on a wild goose chase here - the most likely explanation to me is that something somewhere is deliberately calling -[NSString boolValue] (and it may not be 'your' code - I wouldn't put it out of the realms of possibility that a call to it sneaked into Sparkle), which didn't exist until 10.5. I believe you're right. I've commented some lines related to Sparkle, and now the same call occurs in a more clear location, definitely related to Sparkle. If this is the problem, and you want to target Tiger, the best solution would be to find the use of boolValue in the code base and replace it with something that will work on 10.4. I don't know how to do it, as I have no sources for Sparkle. I could make a post at the Sparkle bug tracker, indeed. The category method you made on NSString is not the right solution - it almost certainly does less than the 10.5+ framework implementation, and it'll replace that method when system frameworks call it, which could cause all sorts of problems (this hit me in the past - the SYCK YAML parsing framework implemented -[NSString boolValue], and it caused problems with, of all things, the iPhone keyboard in iPhone OS 3.0). As far as I've checked now, all calls go with the same true value. Therefore there is a chance that my simple patch will fix the issue. Of course, I understand that it would be better to replace this code with the full implementation of this method. Best, Alex ___ 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: Weird exception
On 22.01.2010, at 20:50, Keary Suska wrote:
I would put my money on bindings. It shouldn't be too difficult to
isolate the issue with the debugger.
I've created a category and set a breakpoint within this method. Call
stack leads me to NSApplication applicationWillFinishLaunching method,
but what can I do with it? Really, I'm using this delegate method, but
I don't use any boolValue calls there.
Now I've written this one:
@implementation NSString (MissingMethods)
-(BOOL) boolValue {
return [self value] == @true;
}
@end
Because debugger shows just true value, when this method is called.
I have no idea how to switch between OS versions, because this
category is useless (if not worse) in 10.5+, but it does something
useful in 10.4. I can build release with 10.4 SDK, but it will be not
correct, as I believe.
Any ideas?
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Re: Weird exception
On 24.01.2010, at 1:12, Kyle Sluder wrote:
You should turn on zombies and run your app in the debugger on 10.4.
Could you please describe it more particularly, as it's not clear for
me what should I do exactly. Should I transfer all my sources into
10.4 OS? Or should I use Terminal to run gdb then launch my app? And
how to turn zombies on?
Thanks in advance.
P.S. Now I've fixed this issue as follows:
@implementation NSString (MissingMethods)
-(BOOL) boolValue {
return strcmp([self UTF8String], true) == 0;
}
@end
and I don't see any exceptions now. Doesn't it mean the problem is
fixed?
-Alex
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Weird exception
Hi, All, Browsing the console log I've found that my app raises an exception, when it is launched in Mac OS X 10.4. I built it in 10.5 with 10.4 as a target setting. I didn't see any problems there. The exception is caused by unsupported selector calling [NSString boolValue]. I've scanned all my project but couldn't find any reference to boolValue. What could cause the problem? Visually my app is working nice in 10.4. BTW, I'm using Sparkle framework, but AFAIK it is compatible with 10.4. Any ideas? -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
Application help window size
Hi, All, Does anybody know how could I define default help window width? I've created a navigation menu, which is too wide for default window, so horizontal scrollbar appears. Or should I adjust my help design to the existing help window default size? Thanks, Alexander ___ 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
AppController dealloc is never called. Why?
Hi, All, Perhaps my question is stupid, but this is my first Cocoa project, so I'll try to ask. I've noticed that my main window controller (usually named AppController) is never freed. I don't know where it is allocated, but suppose it happens somewhere within NSApplication. All other windows, used in the program, are freed OK, as I'm doing it explicitly, as well as their initialization. On the other hand, I'm getting BAD_ACCESS exception, if I insert [self release] within applicationWillTerminate delegate method of my AppController. So, what is the correct way to free AppController? Thanks, Alexander ___ 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
NSWindow delegate messages question
Hi, All,
I'm rather new in Cocoa development, so I have some misunderstanding after
API manuals reading. In particular I have a popup panel, opened by a button
click in the main window:
- (IBAction) btnClick:(id)sender {
[popupPanel showWindow];
}
I'd like to launch some process (no matter what exactly, it will work in
different thread) as soon this popup panel will appear on screen. Of
course, I could launch this process from within the same click handler
above, but I believe it will be better to do it all in the
WindowController's module, related to the popup panel. My question is: what
window delegate message should I use? Will it be OK to use
windowDidBecomeKey message or should I use windowDidExposed? Or whatever
else?
Another question is what notification could I use to display an alert box,
appearing _after_ this popup window will disappear from screen? For example,
I have a Cancel button on this popup panel, which should terminate the
launched process and (as a result of NSTask termination notification) panel
should be closed. For the sake of simplicity let's imagin, we're closing the
panel by button directly:
- (IBAction) btnCancelClick:(id)sender {
[[self window] close];
}
My question is: what window delegate message should I use to show an
NSAlert, in order my alert box would appear on screen already _after_ hiding
of the popup panel? As far as I can see, there is no windowDidClosed
message, but there is only windowWillClose. Is there any easy solution here?
Thanks in advance.
Best regards,
Alexander
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Re: [IB] - can't assign keyboard shortcut to a menu item - closed
On 04.08.2009, at 12:43, Graham Cox wrote: The shortcut item always does look grey however - you have to select it and type the desired shortcut - it's not a normal text field. Understood! My thumbdown to whom designed that screen... Probably I could yet find a way how to do it if I wouldn't see those grayed up/ down arrows... Choosing such grey design could they at least use a simple input box without any arrows? A hint below the control, where we can see a lot of free space, also would help... 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
NSPathControl + PopUp style - is it a bug or feature?
Hi, All, I'm using NSPathControl with Popup style. The question is - why can't I change the path by selecting existing paths in the popup paths list panel? I click the control, panel appears with the target path and all its parent paths below. I click on any of parent paths and have no result - panel disappears and the same path is shown, as the destination, as it was before. I walked across all properties I can see in the Inspector, but can't see anything suitable to resolve the problem. Is this popup panel selectable? If not, then what it appears for? 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
[IB] - can't assign keyboard shortcut to a menu item
Hi, All, It's my first attempt to assign a popup menu to a view, so perhaps my question is stupid, but I can't find an explanation in the Apple's docs... The Key Equiv. field is grayed, and don't see any obvious solution to activate it. I've created a menu, associated it with a view, associated a menu item with action, but this field is still gray. Where is the problem? 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: [IB] - can't assign keyboard shortcut to a menu item
On 03.08.2009, at 17:45, Graham Cox wrote: the view may have many objects any of which could be the menu's target - only the click location can tell you which one, Can't agree. If we setup a control, as capable to have keyboard focus, then, activating this control, we activate all hierarchy of its parents, and we definitely can apply the lowest level parent's popup menu (if any) with its shortcuts. Of course, we can't do it, if we have no focusable controls, so we can work by mouse only in this case. But in this case we even can't speak about keyboard shortcuts. In any other cases we can. 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
NSPathControl - popup panel doesn't work
Hi, All, I can't understand why, but target path is not changed when I click on NSPathControl's popup panel. The control shows the same path, as was chosen earlier. I can click Choose... item and NSOpenPanel will appear, where I can choose a new directory, and these changes will be saved. But none of other items in the popup panel work. Why? I don't see any options in the Inspector, which could help here. NSPathControl has style set to PopUp. Please help. 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: [IB] - can't assign keyboard shortcut to a menu item
On 03.08.2009, at 19:00, Graham Cox wrote: There's much more to life than controls. Completely agree. But I don't like to say that _every_ popup menu _must_ have keyboard shortcuts. I'd just like to say, that it would be good to give such possibility to the coder. But back to your question - feel free to implement it if you feel it does make sense in your app. But it would be _not_ a _popup_menu_ shortcuts, but just a keyboard events handling by the view, if I understand it correctly. In any case we can close this discussion unless it will not transform itself into a pure flood... :) 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: [IB] - can't assign keyboard shortcut to a menu item
On 03.08.2009, at 20:58, Alastair Houghton wrote: If the options in question are useful enough to merit a keyboard shortcut, then they're useful enough to appear in the application's main menu hierarchy. If not, then they aren't. I'm sorry, but as I can see now, main menu shortcuts are also gray... I can delete them but I can't assign them. Why? I've created controller actions and have connected actions of menu items with the controller. 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: How to change focus ring color?
On 01.08.2009, at 4:42, Joel Norvell wrote: You didn't say what objects you are drawing, so I should add this caveat: I'm not sure what variations, if any, would be induced by generalizing my approach to NSCell objects. OK, maybe I provided not so clear problem description. I have _standard_ NSPathControl. It's style is set to PopUp. And I see a light blue rounded rectangle around the control. I'm not sure exactly, if it's a focus ring, because this border does not disappear, if I'm selecting (by mouse) other controls on the same panel. At least this border disappears if choose none in IB properties inspector for the Focus Ring. My question was exactly can I subclass NSPathControl to override this border drawing procedure to change the color of the border? If yes, then what method should I override? I'm not so skilled yet in controls inner structure yet, so I don't know if there is a special procedure, drawing the border, or it's drawn within the same method, which draws the control itself. It looks like your code really draws focus ring, related to keyboard focus. But I'm not sure, if it's what I need for my case. Please advise if you can. Another related problem is that checkbox has the same light-blue background in the checked state. And I don't see what property could change it. I'd like to change it to some grayscale value. 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: How to set the name of open-with application for a specific file?
On 31.07.2009, at 21:41, MATSUMOTO Satoshi sato...@mac.com wrote: I want to do this programmatically. The direct answer to this question is very easy - it's impossible. Why? Take a look here: http://developer.apple.com/technotes/tn/tn2017.html#Section3 Nevertheless, if I understand it correctly, you need to create a situation, when your app will be shown within the Open With menu for appropriate file type, after user has installed your app on his/her computer. If this is the case, then all what you need to do is the next: - provide appropriate info.plist with your app bundle; - place your app into Applications folder (with app installer's help). I did it manually (the second part) and it works without any problems. Going ahead, a question raises, how to make our great app to be the default application for this file type? First of all read the topic, next to the above mentioned. Then... really I never did it yet. As I believe, a specific API function is required here. I never tried it yet, though I will need to resolve the same problem soon. Therefore I'd like to ask you to let me know, if you'll have any success here. 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: How to change focus ring color?
On 02.08.2009, at 0:14, Joel Norvell framewor...@yahoo.com wrote:
If your object is always the First Responder, that would account for
its focus ring always being redrawn.
As I've tested it with the code samples from your links, it's NOT the
first resonder. I don't see any drawings if I surround the drawing
code by if ([self showsFirstResponder]) operator.
There's a lot of good information available, but you have to look
around a bit to find it.
I've checked the links. Thanks. At least I see the way now.
Nevertheless my main problem is still unresolved - I can't change the
color of the focus ring. I used this code:
- (void)drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView {
[super drawWithFrame:cellFrame inView:controlView];
//if ([self showsFirstResponder]) {
// showsFirstResponder is set for us by the NSControl that is
drawing us.
NSRect focusRingFrame = cellFrame;
focusRingFrame.size.height -= 2.0;
[NSGraphicsContext saveGraphicsState];
NSSetFocusRingStyle(NSFocusRingOnly);
[[NSColor brownColor] setStroke];
[[NSBezierPath bezierPathWithRect: NSInsetRect(focusRingFrame,
4,4)] stroke];
^
^
^
^
^
^
^^
//[[self focusRingPath] stroke];
[NSGraphicsContext restoreGraphicsState];
//}
// other stuff might happen here
}
I don't see any ring if I comment the line above, marked with ^.
And I see just the same blue ring, if I uncomment it. I tried NSColor
set, NSColor setFill, NSBezierPath fill - all with the same result. I
can't set another color. What is wrong in my code?
Thanks.
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Re: NSURL fileURLWithPath doesn't produce a valid URL
On 31.07.2009, at 11:51, Dave Keck wrote: Check out CFURLCreateStringByAddingPercentEscapes(), and note that CFURL is toll-free bridged with NSURL. Just have tried it. No difference. I've used: surl = CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, spath, NULL, NULL, kCFStringEncodingUTF8); where spath was the source string with + signs. I've set NULL's, as it was described (at least as I've understood what was written) to escape any possible characters. Is + sign not considered by Apple, as a character, which requires escaping? In my opinion, all codes since 0x20 to 0x2F require escaping. Am I incorrect? 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: NSURL fileURLWithPath doesn't produce a valid URL
On 31.07.2009, at 14:02, Richard Frith-Macdonald wrote: Why do you think that's not a valid URL? It's because another code (Flash plugin) doesn't want to work if I provide a path (as a part of URL), containing + characters. At least I don't see other reasons, why the same function work for path with my home directory, and doesn't work with path, provided by _CS_DARWIN_USER_DIR. If you look at RFC1738 you will see it explicitly says that a '+' is allowed. Say it to Macromedia... or to Adobe?... Though I work with Flash directly (not by WebKit), so maybe the error is within my code, I leave such chance. Nevertheless, even in that case the error is just in the need of URL encoding, as I believe. I suspect what you are actually looking for is a mechanism to encode a string for use as a field name or field value in a form encoded as the query string of a URL. If thats the case, you need to encode the '+' '=' and '' characters yourself. I was just about that. I've created a simple function, encoding necessary characters - blanks, pluses, etc., but I just would like to know if there is a standard way to do it by API usage. But you say - do it yourself. Therefore I believe, the question is closed. Isn't it? 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: NSURL fileURLWithPath doesn't produce a valid URL
On 31.07.2009, at 14:57, Dave Keck wrote: I'm confused: NSLog(@%@, CFURLCreateStringByAddingPercentEscapes(nil, CFSTR(http://www.example.com?a+b c = d), nil, CFSTR(+=), kCFStringEncodingUTF8)); That doesn't do what you want? I've misunderstood. It was said do it yourself in the previous answer, but not use CFURLCreateStringByAddingPercentEscapes with the necessary characters, included into the fourth argument, so I thought this function doesn't do what I need. Of course, I was not too careful when I read its description, where it was said, that fourth argument is just for my case. 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
Application Preferences - a general question
Hi, All, Hope this is not an offtopic here... I'm quite new in Mac world, and one of essential differences from Windows, which I've noticed, is how Preferences changes are applied. Unlike to usual Windows GUI, preferences are applied instantly on Mac, i.e. just as user changes a value. There is no Cancel button resetting values to the state, which they had at the moment, when Preferences panel was opened. Though there is Restore Defaults button, but it does just what it says - it restores so called factory defaults, which are not the same, as previously saved values. I'm reading Cocoa Programming by Aaron Hillegass, now, and he describes just the same Preferences functionality, as above. Am I missing something? Or is this the general user interface building strategy for Cocoa applications or for Mac OS? Is it assumed that user will never wish to return to previously saved values? 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: Application Preferences - a general question
On 31.07.2009, at 23:09, Daniel DeCovnick wrote: Correct in practice, although the principle is more that preferences shouldn't be that onerous to change back to how they were. The lack of needing to click Apply helps here too: since each change is reflected instantly, if something goes horribly wrong, the user knows EXACTLY what made it go horribly wrong. Feel free to implement the Windows way (just keep an NSMutableDictionary in your app delegate that updates whenever the preferences window is opened, and syncs back to the user defaults when cancel is clicked) if your preferences are extensive enough or changes to them destructive enough that you need it. OK, understood it. I just would like to know what is the usual approach here. I believe I know it now. 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
How to change focus ring color?
Hi, All, I can't find how I could change the focus ring color, for example, of NSPathControl. The IB only lets me disable it. Is the color defined by the color scheme hardly? 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
NSURL fileURLWithPath doesn't produce a valid URL
Hi, All, I've found that [NSURL fileURLWithPath] doesn't convert such symbols as + into URL-encoded format. It only converts blanks into %20. As a result, such path, as _CS_DARWIN_USER_DIR, will not be converted into a valid URL. Is there any method or function here to produce a valid URL-encoded strings? Of course, I can do it by hands, but I'd just like to know if there is a correct standard way. 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
DragDrop to desktop - file icons layout problem
Hi, All, Maybe it's a stupid question, but I can't find a solution... I'm dragging files from my app to desktop. All goes OK, but file icons are located one exactly above another if I'm dragging many items. As a result, few extra clicks on desktop are required to be able to split these icons. The question is, how could I assign icons location for dropped items? I believe, though didn't yet tested it, that similar problem will be with Finder window, when it is in icons mode. The only point where I could get such information (as I believe) could be tableView::namesOfPromisedFilesDroppedAtDestination: method, but it doesn't contain any information about icons location. Any ideas? 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: NSTableView cell editing begin / end notifications?
Hi, All,
As soon as I have no replies, I will try to reduce my problem scope...
As far as I can see now, there are no suitable messages/notifications
in standard Cocoa classes, which could serve, as notifiers of the cell
editor session start/stop. I've found a code snipped, showing, how to
create my own cell editor subclass:
-(id) windowWillReturnFieldEditor:(NSWindow *)sender toObject:
(id)anObject {
if ([anObject isKindOfClass:[NSTextField class]]) {
return [[[myCustomFieldEditor alloc] init] autorelease];
}
return nil;
}
I've assigned my AppController, as the main window delegate, then
created my own cell editor, as a derivative from NSTextView, and am
trying to create it, as it is shown above.
There is a problem - if operator, shown above, is never true. So, my
cell editor is never created and the result of this method is always
nil.
Am I missing something?
Thanks.
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Re: NSTableView cell editing begin / end notifications?
Hi, All,
I'm sorry for flood, it's all is pretty new for me, therefore I do too
many mistakes...
Here is, what I'm trying to do:
- (id) windowWillReturnFieldEditor:(NSWindow *)sender toObject:
(id)anObject {
MyTitleEditor *ed;
if ([anObject isKindOfClass:[NSTextField class]]) {
ed = [[[MyTitleEditor alloc] init] autorelease];
[ed setDelegate:self];
return ed;
}
return nil;
}
As far as debugger shows it, this procedure is called for every
control in my main window. I don't understand it why, but it is called
twice for every control, if I understand it correctly.
OK, the IF operator is true for some objects like text field (a
label), but not only for the NSTableView cell editor. So, first of all
I need to distinguish somehow, when this procedure is called for the
table cell editor. How to do it? What is the TextField object at the
moment, when this method is called for the table cell editor?
Another question is that my approach with the NSTextView subclassing
seems to be not working. What I wrote, is this:
in .h file:
..
@interface MyTitleEditor : NSTextView {
}
- (BOOL)acceptsFirstResponder;
- (BOOL)becomeFirstResponder;
- (BOOL)resignFirstResponder;
@end
in .m file:
.
- (BOOL)acceptsFirstResponder {
return [super acceptsFirstResponder];
}
- (BOOL)becomeFirstResponder {
if(([self delegate] != nil)
([[self delegate]
respondsToSelector:@selector(cellEditorWasActivated:)]))
[[self delegate] cellEditorWasActivated:self];
return [super becomeFirstResponder];
}
- (BOOL)resignFirstResponder {
if(([self delegate] != nil)
([[self delegate]
respondsToSelector:@selector(cellEditorWasDeactivated:)]))
[[self delegate] cellEditorWasActivated:self];
return [super resignFirstResponder];
}
None of these methods is called when I click in the NSTableView cell.
Editor appears, but I suppose, it's somehow not my customized editor,
but just generic cell text editor.
Where is my mistake?
Thanks.
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Re: NSTableView cell editing begin / end notifications - solved (?)
Hi, All, To whom is may be interesting: As I wrote initially, my problem is that the table is updated on a timer, so cell editor was cancelled automatically, as the timer fires. First I started to seek for a solution to learn about cell editor appearing / hiding events. And that was very hard way. Occasionally, walking through NSView methods I've found currentEditor method, resolving all my problem. Really, what I need to know, is whether cell editor is active or not. And the method, pointed above just shows it. Nevertheless I'd be just happy to learn about how to detect cell editor appearing / hiding. Though this question comes into a theoretical plane now. 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
NSTableView - strange behaviour after cell text color assignment
Hi, All,
I'm trying to color my table's rows depending on some value, returning
from a function like this:
int GetState(int rowIndex);
I've searched around the Net and the only clear way I've found is to
set my AppController, as a tableView delegate and respond to the message
- (void)tableView:(NSTableView *)aTableView
willDisplayCell:(id)aCell
forTableColumn:(NSTableColumn *)aTableColumn
row:(int)rowIndex;
I've created this method as the next:
if (rowIndex == selRow)
color = [NSColor selectedTextColor];
else
switch (st = GetState(rowIndex)) {
case 1 : { color = [NSColor colorWithCalibratedRed:0
green:0
blue:0.5
alpha:1.0]; break; }
case 2 : { color = [NSColor colorWithCalibratedRed:0
green:0.5
blue:0
alpha:1.0]; break; }
case 3 : { color = [NSColor colorWithCalibratedRed:0.5
green:0
blue:0
alpha:1.0]; break; }
}
[aCell setTextColor:color];
I've got a strange effect: a new row is selected OK, when I change
selection in the tableview, but the row, which was selected, remains
being drawn with the same selected color unless reloadData will
appear. Therefore, changing selection quickly I can change color of
many rows to selected color, unless update will come. Selection bar
itself looks OK, and selected row background and text color changes
immediately, but how to update the row, which was previously selected?
I believed it will be done by my delegate method. It looks like this
method is called at some not appropriate time. Is there a solution?
Thanks.
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Re: NSTableView - strange behaviour after cell text color assignment
Replying to myself: - (void)tableView:(NSTableView *)aTableView willDisplayCell:(id)aCell forTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex; The function above works perfectly, but the problem reason was in the incorrect receiving of the selected row index. I wrongly assigned it, as a global variable, within a function, which updated my table data on timer. therefore the selected row index value was changed on timer, but not on real selection change. why didn't 5 set the assignment in the tableViewSelected: action, going from tableView? Really, I did it. But unfortunately this action raises on the mouse clicks only. Keyboard clicks are passing by this action. Fortunately I've found a solution, that really works. I've registered an observer for NSTableViewSelectionDidChangeNotification notification, and now every change of selection is processed. I believe, the question is closed. 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
NSTableView cell editing begin / end notifications?
Hi, All, In my app I have a table, populated by some periodic procedure, working on a timer. At the same time I need to add a cell editing capability. But periodic updating procedure calls [tableView reloadData], which resets the cell editor, if it is active. Therefore I need to stop this update procedure for a time, when cell editor is active. I've searched over the Net, but can't find any simple solution or description, how to catch editor appearance and hiding. Could anybody point me any sample or at least what notifications should I use? I don't like the idea to subclass a cell editor, but of course I'll do it (though don't know how to do it yet) if there will no other simpler solutions. 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
NSButton setImage in runtime : where is template image?
Hi, All, I'm trying to create a simple switch button, showing something like Show blablabla / Hide blablabla depending on the state of blablabla. I've found that it would be most suitable to use rounded textrured button and change its title, image and image position in the onClick: handler. Everything is OK, but I can't find how to set an image from template, which we can see in the IB. We can choose several images there, in particular, I've chosen NSCoLeftTemplate and NSCoRightTemplate for button states. But how to change them in runtime? As far as I can understand, I should write something like this: [myButton setImage:[NSImage .]] but the question is what messages to use here and how to reach those templates, as we can see in the IB? I tried imageNamed, but it does not find an image. I tried to search in Google for NSCoLeftTemplate / NSCoRightTemplate, but they're not found. 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: NSButton setImage in runtime : where is template image?
On 26.07.2009, at 16:31, Brandon Walkin wrote: There's a typo in your image names. Use NSGoLeftTemplate and NSGoRightTemplate (Go instead of Co). I'm so sorry! I was just blind and used Cmd+C too often... sorry. 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
How to use NSTimer correctly?
Hi, All,
In my app I have a timer, created in the awakeFromNib and living until
the app terminates. And I have some problem when I close the
application. Here are my code snippets:
- (void) awakeFromNib {
...
processingTimer = YES;
timer = [NSTimer scheduledTimerWithTimeInterval:0.5
target:self
selector:@selector(onTimer:)
userInfo:nil
repeats:YES];
...
}
As I believe, everything is OK here...
- (void) dealloc {
processingTimer = NO;
[timer invalidate];
..
}
I'm not sure, if I must invalidate the timer, but think I should do it.
- (void)onTimer:(NSTimer*)timer {
...
//
if (!processingTimer) return;
//
some procedure is going here, which updates the data for NSTableView
//
if (!processingTimer) return;
//
// Update results list in the NSTableView
[fileView reloadData];
^
here we had an exception within obc_msg_send()
}
Here is the onTimer: procedure, where I had an exception after I
closed the application. I tried to remove timer invalidation from the
dealloc, but nothing helped unless I've inserted a boolean var
processingTimer, which should indicate whether our app still lives or
it is slosing now. First I've added this var check only at the top of
onTimer procedure, yet before the main calculating procedure call.
That didn't helped. Then I've added yet another check right before the
call of [NSTable reloadData]. And this helped. At least I've tried to
run and close my app several times and I didn't see an exception.
Also I tried to change timer interval, believing that my main
procedure runs too slowly, so overlapped onTimer calls occur. But it
makes no sense.
So, what is the _correct_ way to do all that?
Thanks.
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Re: How to use NSTimer correctly?
On 25.07.2009, at 18:48, Dave Keck wrote: First off, your object's -dealloc is never going to get called, because NSTimers retain their targets. If so, then where should I dealloc everything, I created in the awakeFromNib? I believed that dealloc will be called when my AppController will be released. But you say it is never released. Then what should I do? Is your suggestion about applicationWillTerminate etc. the correct way to go in this case? And where my AppController will be released? As far as I can understand I can't release it within applicationWillTerminate handler. Am I wrong? Should I write [self release] there? 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: How to use NSTimer correctly?
On 25.07.2009, at 19:56, Scott Ribe wrote: If so, then where should I dealloc everything, I created in the awakeFromNib? I believed that dealloc will be called when my AppController will be released. But you say it is never released. Then what should I do? In dealloc, as you do now. But you need to arrange for dealloc to be called, by making sure nothing (the timer) still retains you. Could you explain it, how should I make the [dealloc] to be called? I've described, how I create a timer, so how should I free it to call dealloc? Should I explicitly call [self release] somewhere or should I do whatever else? 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: NSTableView - populating from C procedure
On 23.07.2009, at 11:52, Graham Cox wrote: BTW, watch out for a potential buffer overflow in getString(...), this is the sort of thing viruses readily exploit. OK, thanks, though I'd like to ask, if it's not a big offtopic, how viruses can exploit my internal function? I can it understand, when viruses send something illegal to a webserver, which has flaws in the request processing routine, but in my case it's an internal function, which, of course, should check the buffer size, but how it could be accessible for a virus? Thanks to all others, who replied. ___ 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: NSTableView - populating from C procedure
On 23.07.2009, at 12:55, Marco S Hyman wrote: On Jul 22, 2009, at 11:38 PM, Graham Cox wrote: My warning was of a very general nature, and may not apply to your app. But every time you declare buffer space as a stack array, you should mentally consider whether a buffer exploit might be possible there. It was a good warning. Agree completely with all you said below! Indeed, I'm doing a check. Since the author can rarely guarantee that some data field will not be filled from an untrusted source *forever* it is always best to check for and not allow overflow. The function getString in the sample code might be safe today, but will it be safe after the nth code change in the future? Does it get or generate its code as a result of user action? Will it always be that way? Easier to ensure that an overflow can't cause harm today then to worry about all future failures. Remember, most security problems stem from abuse of simple bugs. /\/\arc ___ 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
NSTableView is not updated on [reloadData]
Hi, All,
So, I'm continuing :)
I've connected my NSTableView with AppController (in IB) setting
AppController, as NSTableView's datasource. Then I've added a couple
of methods to the AppController to implement NSTableDataSource protocol:
- (int)numberOfRowsInTableView:(NSTableView *)tableView;
- (id)tableView:(NSTableView *)tableView
objectValueForTableColumn:(NSTableColumn *)tableColumn
row:(int)row;
Also I have a timer in my app, which should recalculate something from
time to time and, as a result of this procedure, table row count (as
well as values) should be updated. onTimer: method is like this one:
- (void)onTimer:(NSTimer*)timer {
//
// here we do some actions, leading to actual changes in the table
content.
//
[myTable reloadData];
}
It all is correct for the first look. Isn't it? Now what is
happening. numberOfRowsInTableView: is called only once, yet before
AppController's awakeFromNib is called. At that moment nothing yet is
initialized (initialization goes in awakeFromNib), so
numberOfRowsInTableView: returns zero.
Nothing happens when [myTable reloadData] is called within onTimer:
procedure. None of delegated methods are called, so my table is always
empty, though new data (of nonzero length) are created.
So, my question is - how to make table view to change its row count
and update the data?
Thanks.
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Re: closed - NSTableView is not updated on [reloadData]
On 23.07.2009, at 21:25, I. Savant wrote: Is your myTable outlet connected to the table view? I'm fool... :( sorry... I was pretty sure it is, but really it isn't. Also I was sure that BAD_ACCESS exception should occur if not initialized outlet is used to send a message to. Fixed it. Thanks for so quick reply! ___ 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
NSTableView - populating from C procedure
Hi, All,
This is my first attempt to deal with Cocoa container class, so I have
some unclear points. I've found one of many tutorials here:
http://www.cocoadev.com/index.pl?NSTableViewDataSource
where it is said, among other, that NSTableView items may be filled
out like this:
- (id)tableView:(NSTableView *)aTableView
objectValueForTableColumn:(NSTableColumn *)aTableColumn
row:(int)rowIndex {
return [[myTableViewArray objectAtIndex: rowIndex] objectForKey:
[aTableColumn identifier]]
}
My specifics is that the data (strings) are delivered by an external
procedure, located out of ObjC stuff, and returning C-style strings.
My table has only one column. My question is, as usual, about memory
manager: May I write something like this:
exern void getString(int row, char *s, int *len);
- (id)tableView:(NSTableView *)aTableView
objectValueForTableColumn:(NSTableColumn *)aTableColumn
row:(int)rowIndex {
char buf[255];
int len;
getString(rowIndex, buf, len);
return [NSString stringWithCString:buf length:len
encoding:NSUTF8StringEncoding];
}
I.e. is it possible to return a NSString without its preliminary
retaining?
Or should I add [... retain] to the returning string?
All examples operate by some values, stored in retained structures,
like NSArray. Here my question originates from.
Thanks.
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Re: [IB] - possible bug [was: how to delete action or outlet?]
On 21.07.2009, at 4:07, Kelly Keenan wrote: Have you figured out what is going on here? If not, can you please file a bug and send me the bug number? If possible, it would be really handy to have a very simple project with this same problem. OK, I've found a time to recall what and how I did it. Finally I've discovered the reason. Here is the actions sequence, leading to the bug. - create a new project; I used Cocoa-FPC template, recently created by Jonas Maebe (see the list for the link) though I don't think the template itself does a matter. - click BuildGo to compile, though I don't think it does a matter too. I'm just too lazy to repeat it all again without that step. I just remember that I did it earlier. - open Interface Builder; - select Object Controller in the Library and drag it into Main Menu.XIB window; - PRINCIPAL STEPS ARE HERE: - rename the Object Controller instance, i.e. click on the Object name label below the blue cube, causing its inline editor appearance, and type something. I used AppController name. - DO NOT change NSObject class name at the top of Info page of the Inspector. - add a new action in the Actions panel of the Info page, and call it onClick:. - drag a push button from Library to the Window - connect (Ctrl+Mouse Down) the push button instance with AppController object in the XIB window; a popup list appears, where we choose onClick: action. - CHANGE the AppController object instance CLASS NAME to AppController (was NSObject) in the Object Inspector; the action, we just created DISAPPEARS, so Actions panel is EMPTY. - right-click on the AppController object instance in the XIB window and look at the actions list - we can see, that onClick: action still exists and it's still connected to the push button; screenshot is here: http://home.bokovikov.com/etc/mac/xcode/IB-bug_01.png - click on the cross and disconnect this action from button; now it's empty - add new onClick: action in the Actions panel of Object Info page. - we can see, that AppController popup window has two actions, but Info page now contains only one action. http://home.bokovikov.com/etc/mac/xcode/IB-bug_02.png That's all, what I did now. Earlier I yet created appropriate code in the AppController.m file. Finally I came to the situation, when Actions page in the Inspector contained one onClick: action (though AppController's popup shew two actions) and Minus button was grayed. Now I did not reproduce it, but I believe the problem reason is revealed pretty enough. I demonstrated it all for object actions, though the same situation is with object outlets. Fixing this bug I'd suggest to save all existing actions and outlets, rather than remove them completely, because initial class is NSObject, which is the base one, so any actions, added to NSObject definitely can be added to any of its descendants. Indeed, it would be more advanced solution, when a warning will be generated, when object class is downgraded. Though I can't provide an exact sample, as I'm not so skilled yet in XCode/Cocoa. 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: [IB] - possible bug [was: how to delete action or outlet?]
On 21.07.2009, at 12:20, Graham Cox wrote: Setting the name automatically when you set the class is a convenience, but equally you can change the name to make it clear to you what the object is. The name has no effect on anything. I can agree, but the bug is, that I can't correctly change the class name _after_ I've added some actions/outlets. I definitely would like to have such ability. Adding a new object I could name its class by mistake then add a couple of tens actions/outlets, then discover my mistake in class naming (remember, all this we do in IB, so none of code files could yet be created!), and come face to face with the problem. This is a sort of problem similar to inability of XCode project renaming. It's not clear why not to add such feature? 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: [IB] - possible bug [was: how to delete action or outlet?]
On 21.07.2009, at 13:19, Graham Cox wrote: I don't make up controllers as I go along in IB - they always pre- exist in code and I just use IB to, er, build the interface. I'm not against of the above. I can agree with your approach, moreover, it's an approach, described in Cocoa classic books. In most of cases authors just suggest to create classes (at least their skeletons) in code and then open IB for the first time. Though it may be not so usual for a newbie to write these magic clauses like (IBAction) and IBOutlet, but it is not so fearful. I only would like to say, that really good and stable software should at least be stable to some more or less incorrect user's actions. Is it not allowed to change class name after actions/outlets have been added? OK, just say that! Or, if it's allowed, just fix a bug. Nothing more. 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
Open Recent menu - how to populate it?
Hi, All, I'm writing a simple (in GUI) application, where NSDocument is not used. I use NSOpenPanel to get a file name, then process file and close it. There is no UI, related to file, where NSDocument could help significantly. At least I believe so. My problem is that Recent menu is empty, because in Cocoa (AFAIK) it is maintained automatically by NSDocumentController, which is absent in my app. So, my question is - how to create and update the Open Recent menu manually? Where to store its items? How to populate this submenu when my app is loaded? Or should I use NSDocumentController anyway? 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: Open Recent menu - how to populate it?
On 20.07.2009, at 21:47, Graham Cox wrote: ... and use a menu delegate to update the menu from this. This is just what is unclear for me, as I'm still learning Cocoa :) Do you have in mind that I must: 1 - create an outlet, pointing to Open Recent menu item 2 - create an outlet, pointing to the Main Menu itself (or is there any ready-to-use one?) 3 - set my AppController, as a Main Menu delegate (e.g. in awaikFromNib, using outlet, created in #2) 4 - add some delegate message to my AppController class (what message should I intercept?) 5 - write some code like populating submenu of the menu item referenced by outlet, created in #1 If the sequence above is correct, then, OK, I'll try to do it, though I have one unclear point - will newly created menu items respond to onClick: action automatically, or should I assign onClick: action for each dynamically created item? If I should, then how to do it? For extra credit, check the validity/existence of the file when updating the menu and remove bad ones and disambiguate duplicates. Someone might have written a class to do this already. This is obvious, but my problem is in the menu dynamic creation. On 20.07.2009, at 21:55, Tony S. Wu wrote: i'd store the plist file in Library/Application support folder, and just process the file upon startup. Am I correct in my understanding, that my application can create a subdirectory within /Library/Application Support/ directory? Or should it be done through an installer, where Administrator's password is asked? 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: Open Recent menu - how to populate it?
On 20.07.2009, at 23:13, Ali Ozer wrote: You probably want to call this when you open a doc, or revert, or do save as... (if you have any of these commands in your app, of course). Das ist fantastisch... 8-( ) [[NSDocumentController sharedDocumentController] noteNewRecentDocumentURL:[NSURL URLWithString:filename]]; Just one line of code Thank you very much! ___ 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: [IB] - how to delete action or outlet?
On 19.07.2009, at 18:05, Graham Cox wrote: Delete the actions/outlets from the source file, save, and in IB they'll show up with a yellow colour and a 'x' in the list views (right-click on the target object to show the HUD view of the connections). Then clicking the yellow x deletes the phantom connection. Thanks to all, who replied, but nothing helps :( I tried to reload (synchronize) IB with sources, but without luck. All what I have now is illustrated at screenshots: http://home.bokovikov.com/etc/mac/xcode/Picture1.png http://home.bokovikov.com/etc/mac/xcode/Picture2.png As you can see, bindings panel has four outlets, two of which are connected and other two are free. At the same time Outlets panel at Info page shows only two outlets. AppController's popup menu also shows four outlets. And I don't see any way to delete two free outlets. Moreover, I don't understand, how it could happen, that IB allows existence of more than one object's outlet with the same name. I don't like the idea to clear the XIB and create it all again, but definitely I will be more careful next time I'll have a deal with it! 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
How to intercept/reroute API call in loaded plugin?
I'm sorry, if it's offtopic here, then please tell me, what should be correct list. The problem is the next. I'm working on a Cocoa app, playing Flash content from a specially structured files. The problem with SWF playback is (as I believe) is resolved by movie loading from memory rather than from file. There is no problems here. But what is the problem is FLV (Flash video) playback. It looks like its opening goes despite to all rules directly from a file, but not through plugin=host app communication interface. At least I can't detect any public plugin functions calls, when FLV file is loaded. So, the task is - how to intercept this I/O call and patch it by my own procedure, providing a file handle, as well as file pointer navigation. I'm walking around Apple's sample of mach-o module manual launching: http://developer.apple.com/SampleCode/MemoryBasedBundle/index.html It is more or less clear, how to do it, but I can't find a way to intercept the process of import table loading of the loaded module. Did anybody similar things ever? Any help would be appreciated. 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: [IB] - how to delete action or outlet?
On 19.07.2009, at 19:11, Graham Cox wrote: So, have you tried what I suggested? Right-click on the target object that you've changed *in the main view*. In the HUD window that pops up, look for yellow text with a 'x' button. Click it to delete. This should update what you are seeing in the bindings panel. It may not be possible to do the same thing directly in the bindings panel's list, but I do know the above does work, I use it frequently. I'm sorry, I don't know what is HUD window, but it is what is shown in this screenshot: http://home.bokovikov.com/etc/mac/xcode/Picture3.png If so, I don't see any yellow text here. Could you please provide a similar screenshot? You could email it to me directly, but not to the public list. 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: [IB] - how to delete action or outlet?
On 18.07.2009, at 11:51, Chase Meadors wrote: IB should sync with it's relative Xcode project if they are both open. Are you actually saving changes to the AppController source files after you edit them? As I wrote, when I opened IB for the first time, Actions panel already had AppController.h title and contained my previously declared action. Therefore I thought IB was synchronized with the source file. Am I incorrect? On a second note, the - button is gray because you can only remove actions in IB that you've added in IB. Nice! And how to remove that action or at least how to rename it? For example I've done it by mistake, for testing or similar purposes. Now I can't remove such action or outlet, though I've closed IB, removed the action from the source file, then opened IB again. The action (or outlet) still exists in the object properties list. I think the only way to remove it is to edit XIB file manually - not a simple way, isn't it? 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
[IB] - how to delete action or outlet?
Hi, All, I have no idea of how to remove an action or an outlet from AppController object, once added. For example, I've created appropriate modules AppController.h and .m, then wrote necessary code lines to declare an action stub and/or outlet. Then I open IB and drag necessary objects, like AppController, a text field or label or whatever else, connect them with AppController and look at the AppController's Info page. I see a header AppController.h and action (as well as outlet), I just created for it. OK. Now I'd like to remove that action and/or outlet. But I can't do it from IB, because - button is always gray unless I'll add a new (yet another) action or outlet. What to do now? I close IB, go to AppController.h and .m and remove the code. Then I open IB again, expecting to see previous action being disappeared... Oops... They're still in place, connected to nothing, but - button in appropriate panel is still gray. I can add a new action or outlet, but those, initially created, will be stay unremovable. Recently I've upgraded XCode to 3.1.3, but have still the same problem. Is this a bug or just my misunderstanding? 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
10.4 vs 10.5 SDK - some problems in compilation
Hi, All, I'm rather new in XCode and Cocoa, so maybe it's my misunderstanding. Am I correct in my understanding, that I need to select 10.4 SDK in XCode project menu to create an application, compatible with both Tiger and Leo? I've got few errors in compilation when I choose 10.4 SDK. Some of these errors, like NSUInteger and CGFloat missing, I've fixed by appropriate basic types substituting. Nevertheless I still have one uresolved problem - kVK_ constants are not found in 10.4 SDK, though they're OK with 10.5. I've tried to search in Google, but the only I've found was some FAQ, where it was suggested to use absolute path to the header file. I've tried it, but without luck. Though I use #import/System/Library/.../Events.h (what is shown in Get Info for that header in Finder) I still get the same error. What is strange for me, all works OK even without this #import clause when I'm using 10.5 SDK. Any help would be appreciated. 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
How to share Cocoa classes?
Hi, All, Maybe it's a dummy question, but I can't find a way to share some ObjC classes with several XCode projects. I've created a set of Cocoa classes (.h and .m files) What I'd like to get is the ability to write something like this: #import MyDir/MyClass.h I don't want to distribute these classes, as a framework, but I would like just to link them directly into every executable, which refers them. As I heard, a static library, having ObjC classes inside, may cause some problems in linking. Therefore I yet didn't try this way. My question is: can I copy these shared files (.h + .m) into some system directory to make them being visible for any Cocoa project through the import directive, like above? If no, then what is the correct way to go besides manual inclusion of the same files into every XCode project? -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
Subject: Re: How to share Cocoa classes?
Thank you, Jesse, but just a couple of points to clarify: Static library linking with ObjC class, most likely could be done successfully by only adding -ObjC and -all_load to the Other Linker Flags in the build configuration. Is this option applicable to library project settings or to a project where this library is called from? To be able to use #import MyDir/MyClass.h, you need to add a header search path, that refers to that global directory (or system directory, if you prefer) in your project settings. Could you please give an example of particular directories, where I could put headers as well as the library? All directories at root level are write-protected. What is the correct location to put my own libraries? Also what particular settings are responsible for headers (and libraries) search path? 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: How to share Cocoa classes?
Thank you for the reply, It looks like your case is just what I'd like to have, though my situation is simpler, as my shared code is the same for different projects (though different projects may include other different pieces). Therefore the problem of code stripping (which you described) should not appear for me. Nevertheless, I'd appreciate it highly, if you'll guide me through the XCode project settings adjustment, as it sounds foggy for me, how to make static library to rebuild itself when main project is built. What particular settings should I add to the main project? Also it's not clear, where to put that common header file? What is the correct location for that? Am I correct in my understanding, that placing this .h file into the right place I'll have the ability to include my classes (stored in static library) by single #importmysubdir/myincfile.h ? If yes, then it is just, what I'd like to get! The same question is about static library itseklf -- where it should be located? Should I create my own directory system or is it better to use some standard (system) directories for that? If I must use my own directories, then where should I add a path to them to avoid the necessarity to add this path to every new XCode project manually? Thank you. - Original Message - From: Steve Christensen puns...@mac.com To: Alexander Bokovikov openwo...@uralweb.ru Cc: cocoa-dev@lists.apple.com Sent: Monday, July 06, 2009 9:30 PM Subject: Re: How to share Cocoa classes? I build a number of plugins and ended up with a lot of shared code so I ended up creating a project that builds a static library with all those pieces, then make all my plugin targets dependent on it so that it gets [re-]built first. I created a common include file that includes all the headers for the code in the static library and then include that header in all my plugins. That keeps the included headers list in the various plugins neat, plus makes it easy to add new stuff to the library without having to update headers all over. As for linking, so far I haven't had any problems. The only issue I've ever run into is the case where I have a custom NSView class that doesn't get directly referenced in the code because it's being managed from the nib via bindings. In that case I've just added a if ([MyViewClass class] != NULL)... to a window controller's +initialize method to force that code not to be stripped, since I do want any classes in the library that I'm not using for a particular plugin to be stripped out. steve On Jul 6, 2009, at 1:23 AM, Alexander Bokovikov wrote: Maybe it's a dummy question, but I can't find a way to share some ObjC classes with several XCode projects. I've created a set of Cocoa classes (.h and .m files) What I'd like to get is the ability to write something like this: #import MyDir/MyClass.h I don't want to distribute these classes, as a framework, but I would like just to link them directly into every executable, which refers them. As I heard, a static library, having ObjC classes inside, may cause some problems in linking. Therefore I yet didn't try this way. My question is: can I copy these shared files (.h + .m) into some system directory to make them being visible for any Cocoa project through the import directive, like above? If no, then what is the correct way to go besides manual inclusion of the same files into every XCode project? ___ 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
