Re: Live image preview, huge memory usage...
Thanks a lot for this code Rob!
Quick question (2 actually), right now Im drawing my CIImage in a
custom view... would drawing the CIImage in my view's drawRect method
achieve the same (leak-free) result as your piece of code??? i.e.
something simple like:
// previewImage is an NSBitmapImageRep that exists already..
- (void)drawRect:(NSRect)rect {
CIImage *outputImage = [[CIImage alloc] initWithData:[previewImage
TIFFRepresentation]];
[outputImage drawInRect: NSMakeRect(0, 0, [previewImage pixelsWide],
[previewImage pixelsHigh])
fromRect:NSMakeRect(0, 0, [previewImage pixelsWide],
[previewImage pixelsHigh])
operation:NSCompositeSourceOver
fraction:1.0];
[outputImage release];
}
Second question; my app does batch image processing so eventually I
will have to draw those CIImage offscreen.. (only for the Color
Control Filter actually)... I assume I have to live with the leak??
J-N
On 3-Dec-08, at 3:10 AM, Rob Keniger wrote:
On 03/12/2008, at 5:34 PM, Jean-Nicolas Jolivet wrote:
Hmm I just found an older post that mentions a big memory leak
problem when drawing CIImage offscreen I guess I'll have to do
this differently...
Ah, you've just reminded me. There is a major leak in drawing
CIImage offscreen but you can work around it by rendering to a
CGImageRef in the context of the current window.
Here's the code:
//theImage is an existing NSImage
CIImage *outputImage = [CIImage imageWithData:[theImage
TIFFRepresentation]];
//to draw the image processed by Core Image, we need to draw into
an on-screen graphics context
//this works around a bug in CIImage where drawing in off-screen
graphics contexts causes a huge memory leak
//get the current window's graphics context so that we have an on-
screen context
//usually we would use any view's window but generically you can
just ask for the main window
CIContext *ciContext = [[[NSApp mainWindow] graphicsContext]
CIContext];
if(ciContext == nil)
{
NSLog(@The CIContext of the main window could not be accessed.
Bailing out of the image creation process.);
return;
}
CGAffineTransform transform;
transform = CGAffineTransformMakeTranslation(0.0,[outputImage
extent].size.height);
transform = CGAffineTransformScale(transform, 1.0, -1.0);
outputImage = [outputImage imageByApplyingTransform:transform];
//render the CIIimage into a CGImageRef in the on-screen context
CGImageRef cgImage = [ciContext createCGImage:outputImage fromRect:
[outputImage extent]];
// Draw the CGImageRef into the current context
if (cgImage != NULL)
{
CGContextDrawImage ([[NSGraphicsContext currentContext]
graphicsPort], [outputImage extent], cgImage);
CGImageRelease (cgImage);
}
--
Rob Keniger
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Jean-Nicolas Jolivet
[EMAIL PROTECTED]
http://www.silverscripting.com
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Controlled Font Substitution
When NSTextView and its friends try to display characters and encounter a character not present in the current font (e.g. THAI CHARACTER MO MA in Monaco 10pt.) then they have to get a corresponding glyph from some other font. The problem: they sometimes pick up a font which is not suitable. Is there a way (system wide, per user, per application or using code) to control the order of fonts being searched for missing glyphs? In my case Thai characters get displayed in UPC-Angsana (first font in ~/Library/Fonts), which is a nice font, but rather small (Angsana 10pt. looks rather like 6pt.). Kind regards, Gerriet. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Customizing menu drawing
I'm attempting to draw custom menus as part of a kiosk application where normal Mac OS X menus would look out of place. I can customize drawing of the individual menu items using a custom view (through -[NSMenuItem setView:]). However, there remains a region above and below the items where I can't draw. So I'm left with a menu with portions of the aqua appearance, and portions of my appearance - which is definitely not what I'm after. http://sirg3.homeip.net/tmp/menus.png I have a hunch it can be done by dropping down into the Carbon menu manager, but that's not supported and will break in 64-bit... Does anyone have any ideas? -- Joe Ranieri ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
NSPersistentDocument packages update
I'm looking for the current best practice for convincing NSPersistentDocument to work with document packages. I've found quite a few references online[1] which indicate this is/was a known issue and there seem to be a few workarounds. What I'm wondering is if the stuff I've discovered is 'current', since I don't seem to be able to find anything circa 2008. The current Apple docs still state that NSPD doesn't play nice with file wrappers, so I assume you still need to work around this issue and I've not seen an Apple Approved (tm) example. A quick pointer to somewhere would be completely sufficient, I'm really just Googled out now :) Thanks, Paul [1] http://acaro.wordpress.com/2007/07/19/core-data-persistent-packages-revisited/ [1] http://acaro.wordpress.com/2007/07/09/packages-and-core-data-documents/ [1] http://lists.apple.com/archives/cocoa-dev/2007/Jul/msg00103.html [1] http://www.cocoadev.com/index.pl?NSPersistentDocumentAsPackage ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Get an Specific sublayer of a view.
Hello , well I dunno if this message will arrive to you guys, I have place 2 but got no answer, anyway with those 2 I managed to solve the problem. I have a view which has 5 sub-layers, 6 in total with 1st layer which contains the other 5. Now I want to make a drag and drop operation, each of the 5 layers mentioned above contains an image, so I want to drag that image in another view of the app, so how can I get the exact layer im clicking on?, should I make some if-else statements to know where the mouse was clicked and see which layers has those points or is there any simple workaround to achieve this goal. Thanks a lot,. Best regards Gustavo ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Killing a Thread
On 11/27/08 9:52 PM, Scott Ribe [EMAIL PROTECTED] wrote:
When I'm calling the thread for second time, the animation speed of progress
bar get increased.
It seems pretty clear that your function never terminates. As we all have
been telling you, if the function returns the thread will exit. You need to
examine things in the debugger and determine what the function is doing and
why it does not end.
I'm using an NSTimer to fire the thread in regular intervals and I was not
released the timer after sending mails to all email id's. Now I release the
timer from connectionTerminated: method. Now the thread is exiting.I used
one stop and continue button in the progress window to to stop and continue
the animation. When I'm calling the thread second time and then clicking
stop button, then it is not stopping animation and then clicking continue,
the animation speed get increased abnormally. And also it take more time to
send emails.
I did the code like :
timer = [[NSTimer scheduledTimerWithTimeInterval:(double)[txtTimeinterval
doubleValue] target:self selector:@selector(send:) userInfo:nil
repeats:YES]retain]; //to start the timer
And to invalidate I used
- (void) connectionTerminated: (NSNotification *) theNotification
{
NSLog(@Connection Terminated);
if(stopProgressWindow)
{
[timer invalidate];
[timerrelease];
[self backgroundThreadTerminate]
[deliveryProgressWindow close];
}
RELEASE(_smtp);
}
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Re: NSPersistentDocument packages update
My advice is not to bother. Just subclass NSDocument directly and implement the Core Data side of things there. It really isn't too much work. Mike. On 3 Dec 2008, at 09:42, Paul Tomlin wrote: I'm looking for the current best practice for convincing NSPersistentDocument to work with document packages. I've found quite a few references online[1] which indicate this is/ was a known issue and there seem to be a few workarounds. What I'm wondering is if the stuff I've discovered is 'current', since I don't seem to be able to find anything circa 2008. The current Apple docs still state that NSPD doesn't play nice with file wrappers, so I assume you still need to work around this issue and I've not seen an Apple Approved (tm) example. A quick pointer to somewhere would be completely sufficient, I'm really just Googled out now :) Thanks, Paul [1] http://acaro.wordpress.com/2007/07/19/core-data-persistent-packages-revisited/ [1] http://acaro.wordpress.com/2007/07/09/packages-and-core-data-documents/ [1] http://lists.apple.com/archives/cocoa-dev/2007/Jul/msg00103.html [1] http://www.cocoadev.com/index.pl?NSPersistentDocumentAsPackage ___ 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/cocoadev%40mikeabdullah.net This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Cant Load an Image into a CALayer
Hello, me again,
I have another problem I hadn't been able to solve, Im trying to load
an image which is in my bundle, and then put it in a sublayer of the
Custom View of my app.
I have been readign the previous posts and nothing seem to be working
for me, I dunno what Im doing wrong, here is what Im doing.
- (id)initWithFrame:(NSRect)frame {
self = [super initWithFrame:frame];
if (self) {
// Initialization code here.
NSLog(@Initializing the shps view panel);
shipsContainerLayer = [CALayer layer];
NSRect aux = [self convertRect:[self bounds] toView:nil];
CGRect aux2;
aux2.origin.x=aux.origin.x;
aux2.origin.y=aux.origin.y;
aux2.size.width=aux.size.width;
aux2.size.height=aux.size.height;
shipsContainerLayer.frame = aux2;
NSImage * image = [[NSImage alloc]
initByReferencingFile:@Destroyer.png];
if (image)
{
NSLog(@got image);
CGImageRefimageRef = NULL;
CGImageSourceRef sourceRef;
sourceRef = CGImageSourceCreateWithData((CFDataRef)[image
TIFFRepresentation], NULL);
if(sourceRef) {
imageRef =
CGImageSourceCreateImageAtIndex(sourceRef, 0, NULL);
CFRelease(sourceRef);
[shipsContainerLayer setContents:(id)imageRef];
}
}
}
return self;
}
Trying to track down the problem I see there after I create the
CGImageSourceRef it doesnt go into the if statement, I dunno what its
wrong.
Thanks if someone can help me in this one please.
Best regards
Gustavo
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Re: Button title irregularities
On Dec 2, 2008, at 7:15 PM, Randall Meadows wrote: On Dec 2, 2008, at 5:31 PM, Aki Inoue wrote: You're using Helveitca 12.0 as your label font. Actually, it's: (gdb) po labelFont ArialMT 12.00 pt. P [] (0x001c0e30) fobj=0x162670a0, spc=3.33 Use [NSFont systemFontOfSize:[NSFont systemFontSizeForControlSize: [yourButton controlSize]]] instead. And I'm using that because that's what my client used on their iPhone app, and they want the Mac app to have the exact same look and feel. Please don't do this; the iPhone and desktop experience are _way_ different and what you're doing makes no sense. I recently had my iPhone app reviewed by some members of Apple's UI team at one of the tech talk conferences. My situation was the opposite; moving an app from desktop to iPhone. In some places, I fell into the trap of providing a UI that contained desktop-style metaphors. Also keep in mind that an iPhone OS app is much more simplified in terms of functions than for the desktop. Having said all that, on the iPhone OS, use the defined system controls, system fonts, etc. Then, do the same for the desktop. However, there are definitely some things you can do to both apps to ensure they come from the same tree. Color schemes are very useful here. For example, for my math app, Each mathematical operation was given a color. These colors are used in various parts of the app. Some other purely graphical elements are also shared. Finally, make sure to read both the Macintosh and iPhone Human Interface Guideline documents. ___ Ricky A. Sharp mailto:[EMAIL PROTECTED] Instant Interactive(tm) http://www.instantinteractive.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Creating a Bottom Bar on NSWindow
There's also some info on bottom bars in the HIG. http://developer.apple.com/documentation/UserExperience/Conceptual/AppleHIGuidelines/XHIGWindows/chapter_18_section_4.html On Dec 2, 2008, at 9:32 PM, Brandon Walkin wrote: You can use my BWToolkit plugin for Interface Builder to add a bottom bar. The advantage to using the plugin rather than doing it programmatically (as Andre suggested) is that you'll be able to see the bottom bar in IB which makes it easy to position UI elements on or above it. Here's a link: http://www.brandonwalkin.com/blog/2008/11/13/introducing-bwtoolkit/ -Brandon On 2-Dec-08, at 7:59 PM, Mike Chambers wrote: I am working on an app, and need to create a bottom bar for it. I could not find any control or info on how to do this, but I noticed that if I set the Appearance : Texture attribute to true in Interface Builder (for the window), I seemed to get a bottom bar. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Any reason to avoid GCC-4.2 for Leopard and later targeted code?
How about with Tiger users? Do the applications work there, too? Bob Sent from my iPhone On Dec 3, 2008, at 6:47 AM, Luca Ciciriello [EMAIL PROTECTED] wrote: No Idea, but I use currently GCC-4.2 for my Apps. I've to say that my applications are C++ and Objective-C++ apps. I haven't found any problem using GCC-4.2 on Leopard. Luca. www.mitosrl.com From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Date: Wed, 3 Dec 2008 09:31:35 -0500 Subject: Any reason to avoid GCC-4.2 for Leopard and later targeted code? I've run into an apparent codegen bug (related to Obj-C properties) that appears to be fixed in GCC-4.2. GCC-4 is still the system compiler on Leopard. For code targetting Leopard and later (linked against the 10.5 SDK) are there any gotchas or other issues I should be aware of before I switch over to using 4.2 to build? Jim ___ Do not post admin requests to the list. They will be ignored. Xcode-users mailing list ([EMAIL PROTECTED]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/xcode-users/luca_ciciriello%40hotmail.com This email sent to [EMAIL PROTECTED] Take your friends with you with Mobile Messenger. Click Here! ___ Do not post admin requests to the list. They will be ignored. Xcode-users mailing list ([EMAIL PROTECTED]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/xcode-users/bob%40gluetools.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
RE: Any reason to avoid GCC-4.2 for Leopard and later targeted code?
Probably not. But we are speaking about linking against 10.5 SDK and in this framework I don't see any restriction to use GCC-4.2. Luca. From: [EMAIL PROTECTED]: [EMAIL PROTECTED]; [EMAIL PROTECTED]: Re: Any reason to avoid GCC-4.2 for Leopard and later targeted code?Date: Wed, 3 Dec 2008 07:00:00 -0800 How about with Tiger users? Do the applications work there, too? BobSent from my iPhone On Dec 3, 2008, at 6:47 AM, Luca Ciciriello [EMAIL PROTECTED] wrote: No Idea, but I use currently GCC-4.2 for my Apps. I've to say that my applications are C++ and Objective-C++ apps.I haven't found any problem using GCC-4.2 on Leopard. Luca.www.mitosrl.com From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Date: Wed, 3 Dec 2008 09:31:35 -0500 Subject: Any reason to avoid GCC-4.2 for Leopard and later targeted code? I've run into an apparent codegen bug (related to Obj-C properties) that appears to be fixed in GCC-4.2. GCC-4 is still the system compiler on Leopard. For code targetting Leopard and later (linked against the 10.5 SDK) are there any gotchas or other issues I should be aware of before I switch over to using 4.2 to build? Jim ___ Do not post admin requests to the list. They will be ignored. Xcode-users mailing list ([EMAIL PROTECTED]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/xcode-users/luca_ciciriello%40hotmail.com This email sent to [EMAIL PROTECTED] Take your friends with you with Mobile Messenger. Click Here! ___Do not post admin requests to the list. They will be ignored.Xcode-users mailing list ([EMAIL PROTECTED])Help/Unsubscribe/Update your Subscription:http://lists.apple.com/mailman/options/xcode-users/bob%40gluetools.comThis email sent to [EMAIL PROTECTED] _ Get a bird’s eye view of the world with Multimap http://clk.atdmt.com/GBL/go/115454059/direct/01/___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Cant Load an Image into a CALayer
NSImage * image = [[NSImage alloc] initByReferencingFile:@Destroyer.png]; Your conditional statement is failing because the image can't be located; you need to pass the path to your image relative to the current working directory; see the documentation: http://developer.apple.com/DOCUMENTATION/Cocoa/Reference/ApplicationKit/Classes/NSImage_Class/Reference/Reference.html#//apple_ref/occ/instm/NSImage/initByReferencingFile: If this image is in your resources directory, you can use either [NSImage imageNamed:@Destroyer.png] or [[NSImage alloc] initByReferencingFile:[[NSBundle mainBundle] pathForResource:@Destroyer ofType:@png]] -Ben ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Rollover on custom Cells
Am 29.11.2008 um 21:44 Uhr schrieb Gustavo Pizano: Can somebody please give me and advise of what Im might be doing wrong? No, because you didn't give any relevant information (aka source code). or any efficient method to achieve this purpose ? You may want to have a look at my AMButtonBar control which does something similar: http://www.harmless.de/cocoa-code.php Andreas ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSURL bug with IPv6 addresses
I've opened radar #6414752. - lc On Dec 3, 2008, at 12:34 AM, Kyle Sluder wrote: On Tue, Dec 2, 2008 at 10:59 PM, Larry Campbell [EMAIL PROTECTED] wrote: The first line is the correct, desired result; the next two are totally borked. So is this just known to be broken? Or is there some way to get it to work? Interestingly enough, the documentation only refers to RFC 1808, which in turn refers to RFC 1738, which only allows for IPv4 addresses. This seems like it's just a matter of the standard being behind the times. File a bug! --Kyle Sluder smime.p7s Description: S/MIME cryptographic signature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Customizing menu drawing
I can offer you just two options: – Use Aqua menus. – Draw a custom view instead of a menu. Other people may have more ideas. On 3 Dec 2008, at 08:57:35, Joe Ranieri wrote: I'm attempting to draw custom menus as part of a kiosk application where normal Mac OS X menus would look out of place. I can customize drawing of the individual menu items using a custom view (through -[NSMenuItem setView:]). However, there remains a region above and below the items where I can't draw. So I'm left with a menu with portions of the aqua appearance, and portions of my appearance - which is definitely not what I'm after. http://sirg3.homeip.net/tmp/menus.png I have a hunch it can be done by dropping down into the Carbon menu manager, but that's not supported and will break in 64-bit... Does anyone have any ideas? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
re: Size of the resize indicator
I posted this question awhile ago, but never received a response. I asked the same question on another mailing list and received the answer that what I want to do is simply not possible. If anyone has a solution that involves being able to use a NSPanel, I would be very interested. I have filed a bug report - rdar://6414772 I'm pretty sure this cannot be done in Cocoa windows. If you see it in some panels, those are either using SPI or they aren's Cocoa windows. Also drawing it yourself is not possible using API, as the resize indicator is part of a private view class. On 3 Dec 2008, at 4:29 PM, Eric Gorr wrote: I would like to be able to use the mini version of a NSScrollView and have that scroll view extend into the bottom right corner of a resizable NSPanel where the resize indicator for the window is drawn. Unfortunately, the resize indicator only seems to fit the regular sized version of a NSScrollView. Now, I have seen palettes in other applications with a resize indicator which would fit nicely with the small version of a NSScrollView. Does anyone know how to get a smaller resize indicator to automatically appear? Is this something I will have to draw myself? Are NSScrollViews only meant to be the 'regular' size? If you need to see an example of what I am talking about, the problem can be easily reproduced using just interface builder. I have placed an example at: http://ericgorr.net/resizeindicator.zip Thank you. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Determining unreleased objects after Quit
Namaste! In my application, when I choose File-Quit, the application appears to terminate. HOWEVER, it doesn't. SOMETHING(s) is(are) left unreleased. Is there a handy way to determine what the object(s) is(are)? Peace, Love, and Light, Jon C. Munson II And Jesus looking upon them saith, With men it is impossible, but not with God: for with God all things are possible. [Mark 10:27; KJV] I sign Peace, Love, and Light for at least two reasons. First, it is my truest desire for this planet and her people to live in Peace, with Love, and in the Light of God. Second, to be an Ascended Master, one must Be. As I wish to Be an Ascended Master (someday if not sooner), I must also Be - thus I choose to Be Peace, Love, and Light as much as I can for everyone and am therefore reflecting those thoughts to you. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Determining unreleased objects after Quit
On Dec 3, 2008, at 9:38 AM, Jon C. Munson II wrote: In my application, when I choose File-Quit, the application appears to terminate. HOWEVER, it doesn't. SOMETHING(s) is(are) left unreleased. Is there a handy way to determine what the object(s) is(are)? Can you please elaborate? When you quit an app, all of its memory is released. Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Determining unreleased objects after Quit
On Wed, Dec 3, 2008 at 11:38 AM, Jon C. Munson II [EMAIL PROTECTED] wrote: Namaste! In my application, when I choose File-Quit, the application appears to terminate. HOWEVER, it doesn't. SOMETHING(s) is(are) left unreleased. Is there a handy way to determine what the object(s) is(are)? Absolutely impossible. When your application process terminates, the operating system frees all memory associated with it. If you tell us what you're observing which makes you think that some memory remains, perhaps we can tell you what's really going on. Mike ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Rollover on custom Cells
Hey Hello, thanks for the reply. Well after a day of reading and working on it I figure it out how to do it. I dunno if I did it good, but so far its working, and the Leaks instrument program is showing no leaks, what Im concerned now its another issue with the images I want to show in the CALayers, I post the message, this time with code of what Im doing. Thanks again. Gustavo On 3.12.2008, at 16:40, Andreas Mayer wrote: Am 29.11.2008 um 21:44 Uhr schrieb Gustavo Pizano: Can somebody please give me and advise of what Im might be doing wrong? No, because you didn't give any relevant information (aka source code). or any efficient method to achieve this purpose ? You may want to have a look at my AMButtonBar control which does something similar: http://www.harmless.de/cocoa-code.php Andreas ___ 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/gustavxcodepicora%40gmail.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Determining unreleased objects after Quit
On Dec 3, 2008, at 9:38 AM, Jon C. Munson II wrote: Namaste! In my application, when I choose File-Quit, the application appears to terminate. HOWEVER, it doesn't. SOMETHING(s) is(are) left unreleased. Is there a handy way to determine what the object(s) is(are)? When your app quits, all of its memory used it released back to the system. However, your deallocs and such will NOT be called, since that would be a waste of time since everything's going to be released back to the system anyway. It's a shortcut, and usually is in your best interest. It can, however, bite you in certain situations, specifically non- memory resources that you need to do something with at termination. In my case, I needed to release access to a camera, so I had to do some of my cleanup work in -applicationWillTerminate:. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Controlled Font Substitution
Mac OS X ships with Thonburi as the Thai system font, and that's the font usually you get for Thai character substitution. The font substitution system is applying sophisticated algorithm to closely match font traits, and it appears it's causing the random fallback. Probably the system should be smarter to offer more consistent fallback behavior so that apps are free from such worries. Please file an enhancement request. In the meantime, if you want to control the font substitution behavior, you can create fonts with NSFontDescriptor that has custom NSFontCascadeListAttribute. Alternatively, you can post-process the system fallback result by overriding -[NSTextStorage fixFontAttributeInRange:]. Aki On 2008/12/03, at 15:41, Gerriet M. Denkmann wrote: When NSTextView and its friends try to display characters and encounter a character not present in the current font (e.g. THAI CHARACTER MO MA in Monaco 10pt.) then they have to get a corresponding glyph from some other font. The problem: they sometimes pick up a font which is not suitable. Is there a way (system wide, per user, per application or using code) to control the order of fonts being searched for missing glyphs? In my case Thai characters get displayed in UPC-Angsana (first font in ~/Library/Fonts), which is a nice font, but rather small (Angsana 10pt. looks rather like 6pt.). Kind regards, Gerriet. ___ 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/aki%40apple.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Custom Window Resize Image
Hello, I'm writing a custom window for my application, but I can't figure out how to make a custom resize image... Any help? Thanks, Mr. Gecko ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Cant Load an Image into a CALayer Solved
I just wanted to say tha tI solved the problem, I realize where I was
making my mistake, I guess I was trying to put the image in the init
method, and somehow it wasn't working (my guess is that in the init
the view wasn't initialized yet), so I put it in the awakeFromNib
method and it did Work.
thanks
Gustavo
On 3.12.2008, at 14:36, Gustavo Pizano wrote:
Hello, me again,
I have another problem I hadn't been able to solve, Im trying to
load an image which is in my bundle, and then put it in a sublayer
of the Custom View of my app.
I have been readign the previous posts and nothing seem to be
working for me, I dunno what Im doing wrong, here is what Im doing.
- (id)initWithFrame:(NSRect)frame {
self = [super initWithFrame:frame];
if (self) {
// Initialization code here.
NSLog(@Initializing the shps view panel);
shipsContainerLayer = [CALayer layer];
NSRect aux = [self convertRect:[self bounds] toView:nil];
CGRect aux2;
aux2.origin.x=aux.origin.x;
aux2.origin.y=aux.origin.y;
aux2.size.width=aux.size.width;
aux2.size.height=aux.size.height;
shipsContainerLayer.frame = aux2;
NSImage * image = [[NSImage alloc]
initByReferencingFile:@Destroyer.png];
if (image)
{
NSLog(@got image);
CGImageRefimageRef = NULL;
CGImageSourceRef sourceRef;
sourceRef = CGImageSourceCreateWithData((CFDataRef)[image
TIFFRepresentation], NULL);
if(sourceRef) {
imageRef =
CGImageSourceCreateImageAtIndex(sourceRef, 0, NULL);
CFRelease(sourceRef);
[shipsContainerLayer setContents:(id)imageRef];
}
}
}
return self;
}
Trying to track down the problem I see there after I create the
CGImageSourceRef it doesnt go into the if statement, I dunno what
its wrong.
Thanks if someone can help me in this one please.
Best regards
Gustavo
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Special Characters Edit Menu Item
I searched the archives and found no useful information on how to remove the Special Characters menu item from the edit menu. I want to remove this item ... is removing this item a good or bad practice? If bad, why? David Blanton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[NSTextView complete:] popup menu delay before hiding
When I hit F5 to do complete: in text edit the menu of completions shows indefinitely, until I select an item or type a new letter. Same thing happens when I do F5 in Safari's search field. But if I do F5 in Xcodes's toolbar search field the popup of choices only shows for about a second, and then automatically hides. This leads to my problem. My application has the autohide behavior of the completions list, but I want it to have the stay visible indefinitely behavior. I assume that Text Edit has the default behavior, but I can't seem to find where in my code I've set things up so that the completions list hides after a few seconds. Does anyone know how to make sure that NSTextViews popup menu of completions stays visible until the user presses a new key? Thanks, Jesse ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Special Characters Edit Menu Item
On Dec 3, 2008, at 2:09 PM, David Blanton wrote: I searched the archives and found no useful information on how to remove the Special Characters menu item from the edit menu. I want to remove this item ... is removing this item a good or bad practice? If bad, why? I can't make any appeal to authority, but I can say that I personally find it a bad choice in most situations. If your app allows the entry of any relatively unconstrained text by the user, then the user may have many reasons for wanting to enter special characters. That menu item is the most direct way to do that. (By constrained I mean, for example, a phone number or other purely numeric input. Or, I don't know, DNA sequences where only ATGC are legal.) Why would you want to frustrate your users? Regards, Ken ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Special Characters Edit Menu Item
On Dec 3, 2008, at 12:09 PM, David Blanton wrote: I searched the archives and found no useful information on how to remove the Special Characters menu item from the edit menu. There is no sure fire way to remove this menu item. I want to remove this item ... is removing this item a good or bad practice? If bad, why? It is not recommended, as it is part of the Mac OS X user experience, as it is provided to allow the user to easily enter special characters. Why do you want to remove it? -- David Duncan Apple DTS Animation and Printing ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Special Characters Edit Menu Item
I do not understand why you would want to remove something that is put in place by Apple for a reason. All of my OS X apps have that menu item, if I were to use that menu item and be used to all apps having it I would hate your app for not having it. Is there a real reason you wish to remove it or just because you dont find a use for it personally? On Dec 3, 2008, at 3:24 PM, Ken Thomases wrote: On Dec 3, 2008, at 2:09 PM, David Blanton wrote: I searched the archives and found no useful information on how to remove the Special Characters menu item from the edit menu. I want to remove this item ... is removing this item a good or bad practice? If bad, why? I can't make any appeal to authority, but I can say that I personally find it a bad choice in most situations. If your app allows the entry of any relatively unconstrained text by the user, then the user may have many reasons for wanting to enter special characters. That menu item is the most direct way to do that. (By constrained I mean, for example, a phone number or other purely numeric input. Or, I don't know, DNA sequences where only ATGC are legal.) Why would you want to frustrate your users? Regards, Ken ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/codebowl%40gmail.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Special Characters Edit Menu Item
There is no text entry capability in my app so this menu item looks like I don't know what I am doing. On Dec 3, 2008, at 1:30 PM, Joseph Crawford wrote: I do not understand why you would want to remove something that is put in place by Apple for a reason. All of my OS X apps have that menu item, if I were to use that menu item and be used to all apps having it I would hate your app for not having it. Is there a real reason you wish to remove it or just because you dont find a use for it personally? On Dec 3, 2008, at 3:24 PM, Ken Thomases wrote: On Dec 3, 2008, at 2:09 PM, David Blanton wrote: I searched the archives and found no useful information on how to remove the Special Characters menu item from the edit menu. I want to remove this item ... is removing this item a good or bad practice? If bad, why? I can't make any appeal to authority, but I can say that I personally find it a bad choice in most situations. If your app allows the entry of any relatively unconstrained text by the user, then the user may have many reasons for wanting to enter special characters. That menu item is the most direct way to do that. (By constrained I mean, for example, a phone number or other purely numeric input. Or, I don't know, DNA sequences where only ATGC are legal.) Why would you want to frustrate your users? Regards, Ken ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/codebowl%40gmail.com This email sent to [EMAIL PROTECTED] ___ 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/airedale% 40tularosa.net This email sent to [EMAIL PROTECTED] David Blanton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Special Characters Edit Menu Item
To any familiar mac user they will know ;) it's the newcomers that will probably wonder, then again they will probably understand once they see that ever app has it. On Dec 3, 2008, at 3:35 PM, David Blanton wrote: There is no text entry capability in my app so this menu item looks like I don't know what I am doing. On Dec 3, 2008, at 1:30 PM, Joseph Crawford wrote: I do not understand why you would want to remove something that is put in place by Apple for a reason. All of my OS X apps have that menu item, if I were to use that menu item and be used to all apps having it I would hate your app for not having it. Is there a real reason you wish to remove it or just because you dont find a use for it personally? On Dec 3, 2008, at 3:24 PM, Ken Thomases wrote: On Dec 3, 2008, at 2:09 PM, David Blanton wrote: I searched the archives and found no useful information on how to remove the Special Characters menu item from the edit menu. I want to remove this item ... is removing this item a good or bad practice? If bad, why? I can't make any appeal to authority, but I can say that I personally find it a bad choice in most situations. If your app allows the entry of any relatively unconstrained text by the user, then the user may have many reasons for wanting to enter special characters. That menu item is the most direct way to do that. (By constrained I mean, for example, a phone number or other purely numeric input. Or, I don't know, DNA sequences where only ATGC are legal.) Why would you want to frustrate your users? Regards, Ken ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/codebowl %40gmail.com This email sent to [EMAIL PROTECTED] ___ 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/airedale%40tularosa.net This email sent to [EMAIL PROTECTED] David Blanton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Customizing menu drawing
On Dec 3, 2008, at 12:57 AM, Joe Ranieri wrote: I'm attempting to draw custom menus as part of a kiosk application where normal Mac OS X menus would look out of place. I can customize drawing of the individual menu items using a custom view (through -[NSMenuItem setView:]). However, there remains a region above and below the items where I can't draw. So I'm left with a menu with portions of the aqua appearance, and portions of my appearance - which is definitely not what I'm after. http://sirg3.homeip.net/tmp/menus.png I have a hunch it can be done by dropping down into the Carbon menu manager, but that's not supported and will break in 64-bit... Does anyone have any ideas? There's no way to do this in Cocoa yet, sorry. -Peter ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
NSSavePanel mishandling extensions
I have a NSSavePanel set up for the user to select a file name to store a file. The user can store it in several different formats. I have a NSPopUpButton configured to allow the user to select the desired format; upon a change, it calls the setRequiredFileType function with that single file type. But the panel does not seem to pay attention to any of this, it never displays or returns a file name with a file extension. The state of the Show extension checkbox does not matter. I've checked that the popup delegate is getting called and setting the required filetype to the string with no dot. I would implement a bit of the desired functionality myself, but NSSavePanel's -filename function is labeled such that it should only be called after the dialog has completed, and there appears to be no way to change the filename once the panel has started (ie to show the correct extension). How is NSSavePanel supposed to work? I could try groping around in the panel to locate the NSTextView or NSTextField for the file name, but that is crass and prone to problems later if not sooner. Do I HAVE to implement the delegate methods (isValidFilename?) to check the file extension for it if I supply an accessory view? In a spot where there is only a single valid file type, my code doesn't do the setAccessoryView and then the extension is showing up OK. It's using the same file extension array in both cases. The only change as far as the panel is concerned is whether or not an accessory view is set --- the behavior changes even if I don't change the popup button. There are no calls sent to the NSSavePanel -- the behavior has changed just based on the presence of the accessory view. (A bunch of calls get made to the popup button, but that doesn't do anything to the save panel---it only does the setRequiredFileType when the user changes the popup.) If all else fails, I guess I'll have to prevent the panel from showing the Show Extensions box (never an extension visible), and tack on the correct extension manually upon completion. But that will mess up the existing-file checks I'd guess, so I'll have to waste some more time to replicate that too. It does not check a user-supplied extension against the specified one either. And the cocoa version will have to be less functional than the carbon version. 10.5/64bit ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Special Characters Edit Menu Item
OK. I'll leave it. Thanks all. On Dec 3, 2008, at 1:29 PM, David Duncan wrote: On Dec 3, 2008, at 12:09 PM, David Blanton wrote: I searched the archives and found no useful information on how to remove the Special Characters menu item from the edit menu. There is no sure fire way to remove this menu item. I want to remove this item ... is removing this item a good or bad practice? If bad, why? It is not recommended, as it is part of the Mac OS X user experience, as it is provided to allow the user to easily enter special characters. Why do you want to remove it? -- David Duncan Apple DTS Animation and Printing David Blanton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[MEET] CocoaHeads Mac Developer Meetings
Greetings, CocoaHeads is an international Mac programmer's group. We specialize in Cocoa, but everything Mac programming related is welcome. Why Should I Attend? Meeting other Mac OS X developers in person is both fun and immensely useful. There's no better way to learn Cocoa or get help with problems than being around other people who are writing Mac software. We usually have several Cocoa experts hanging around that are happy to answer whatever questions they can. Bring your laptop and any code you're working on. Everyone is Welcome Meetings are free and open to the public. Feel free to drop in even if you've never attended or aren't currently using Cocoa. We usually have a few new faces, so don't worry about being the odd one out. Upcoming meetings: Canada Ottawa/Gatineau- Thursday, December 11, 2008 19:00. Germany Berlin- Thursday, December 11, 2008 19:00. Frankfurt - Monday, December 1, 2008 20:00. Munich- Thursday, December 11, 2008 19:30. Malaysia Kuala Lumpur- Saturday, December 20, 2008 17:30. Netherlands Amsterdam- Wednesday, December 10, 2008 19:00. Sweden Stockholm- Monday, December 1, 2008 18:30. United States Boston- Thursday, December 11, 2008 19:00. Boulder- Tuesday, December 9, 2008 19:00. Cleveland- Tuesday, December 12, 2006 19:00. Colorado Springs- Thursday, December 11, 2008 19:00. Des Monies- Thursday, December 11, 2008 19:00. Fort Lauderdale- Wednesday, December 17, 2008 19:00. Lake Forest- Wednesday, December 10, 2008 19:00. New York- Thursday, December 11, 2008 18:00. Portland- Wednesday, December 10, 2008 19:00. San Diego- Thursday, December 11, 2008 19:00. Silicon Valley- Possible meeting this month. St. Louis- Saturday, December 27, 2008 14:00. Please check the web site at http://cocoaheads.org for more information including last-minute changes. Some chapters may have yet to post their meeting for this month. Steve Silicon Valley CocoaHeads http://cocoaheads.org ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSSavePanel mishandling extensions
Have you tried: [savePanel setRequiredFileType:@txt]; [savePanel setAllowsOtherFileTypes:YES]; This is what TextEdit does. Does TextEdit work in a way similar to what you want to do? -corbin Le Dec 3, 2008 à 12:58 PM, Russ a écrit : I have a NSSavePanel set up for the user to select a file name to store a file. The user can store it in several different formats. I have a NSPopUpButton configured to allow the user to select the desired format; upon a change, it calls the setRequiredFileType function with that single file type. But the panel does not seem to pay attention to any of this, it never displays or returns a file name with a file extension. The state of the Show extension checkbox does not matter. I've checked that the popup delegate is getting called and setting the required filetype to the string with no dot. I would implement a bit of the desired functionality myself, but NSSavePanel's -filename function is labeled such that it should only be called after the dialog has completed, and there appears to be no way to change the filename once the panel has started (ie to show the correct extension). How is NSSavePanel supposed to work? I could try groping around in the panel to locate the NSTextView or NSTextField for the file name, but that is crass and prone to problems later if not sooner. Do I HAVE to implement the delegate methods (isValidFilename?) to check the file extension for it if I supply an accessory view? In a spot where there is only a single valid file type, my code doesn't do the setAccessoryView and then the extension is showing up OK. It's using the same file extension array in both cases. The only change as far as the panel is concerned is whether or not an accessory view is set --- the behavior changes even if I don't change the popup button. There are no calls sent to the NSSavePanel -- the behavior has changed just based on the presence of the accessory view. (A bunch of calls get made to the popup button, but that doesn't do anything to the save panel---it only does the setRequiredFileType when the user changes the popup.) If all else fails, I guess I'll have to prevent the panel from showing the Show Extensions box (never an extension visible), and tack on the correct extension manually upon completion. But that will mess up the existing-file checks I'd guess, so I'll have to waste some more time to replicate that too. It does not check a user- supplied extension against the specified one either. And the cocoa version will have to be less functional than the carbon version. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Determining unreleased objects after Quit
On Dec 3, 2008, at 9:06 AM, Randall Meadows wrote: On Dec 3, 2008, at 9:38 AM, Jon C. Munson II wrote: Namaste! In my application, when I choose File-Quit, the application appears to terminate. HOWEVER, it doesn't. SOMETHING(s) is(are) left unreleased. Is there a handy way to determine what the object(s) is(are)? When your app quits, all of its memory used it released back to the system. However, your deallocs and such will NOT be called, since that would be a waste of time since everything's going to be released back to the system anyway. It's a shortcut, and usually is in your best interest. It can, however, bite you in certain situations, specifically non- memory resources that you need to do something with at termination. In my case, I needed to release access to a camera, so I had to do some of my cleanup work in -applicationWillTerminate:. This is correct. I'm not sure exactly the mechanism -- and I suspect it has something to do with Mach ports owned by the process which are not shut down correctly -- but I've encountered a case where my app appears open in the Dock, but does not appear in the bsd, Process Manager, or Mach process lists. This only happens when the app terminates abnormally, and our shutdown sequence does not execute. I've also noticed that aborting a Debug session in Xcode 3.1.1 will sometimes result in the app not quite going away, I presume also as a result of having mach ports in a weird state. Joe K. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Binding/KVO question
This might be an obvious question but I don't think I've ever had to do it...I'll try to keep the example as simple as possible: I have 2 classes; An AppController with a bunch of properties (lets say propA, probB and probC, all integers) that are bound to my main window's controls... (all sliders..) when the main windows sliders are changed, the properties of AppControllers are changed... In the same NIB file I have a second window with a custom view inside (Let's call it MyCustomView, in MySecondWindow) is there a way for MyCustomView to have properties that will be bound to my AppController's propA, propB and propC so that MyCustomView is also notified when those properties are changed? I am reading on Key-Value observing right now but it seems like if I want to add an observer on my AppController's properties in my CustomView's code I would need an instance to my AppController, which I haven't! (both MySecondWindow and MyCustomView are outlets of my AppControllers...) I'm sure there is an obvious way of doing it but right now I just can't see it... Any help would be appreciated... Jean-Nicolas Jolivet [EMAIL PROTECTED] http://www.silverscripting.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Setting NSTableView column header with Cocoa bindings
I'm having trouble setting the column header title in an NSTableView using Cocoa bindings. No matter what my value method returns, the header title displays as a single open parenthesis. I know, by setting a breakpoint, that my value method is getting called. All other uses of bindings within the table (text color, value cell contents, etc.) behave as expected. Has anyone else run into this? Is it a known bug? - lc smime.p7s Description: S/MIME cryptographic signature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSSavePanel mishandling extensions
It works as desired when only a single permissible file extension is involved. (I have setAllowsOtherFileType:NO) But the issue is that the user has the option to save jpg, tif, bmp, png etc files---a specific supported list of types; the popup selects which type will be saved, and the extension needs to be modified accordingly, immediately if the Show Extension box is on, and at the very least, later when the filename is being locked in and the overwrite tests done. Users can change the desired file type several times when the panel is open. This is a builtin feature in Windows, btw, it's a bit silly to have to spend my time to reproduce such a common function. Something like setAllowedFileTypes that takes an NSDictionary of extensions and user-readable equivalents would let NSSavePanel do this all by itself. You can see somebody else having problems with this on Mac Firefox, do a File/Save Page As--- you can change the type, but they aren't updating the extension if you change to text. - Original Message Sent: Wednesday, December 3, 2008 4:10:07 PM Subject: Re: NSSavePanel mishandling extensions Have you tried: [savePanel setRequiredFileType:@txt]; [savePanel setAllowsOtherFileTypes:YES]; This is what TextEdit does. Does TextEdit work in a way similar to what you want to do? -corbin ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Binding/KVO question
On Dec 3, 2008, at 2:35 PM, Jean-Nicolas Jolivet wrote: In the same NIB file I have a second window with a custom view inside (Let's call it MyCustomView, in MySecondWindow) is there a way for MyCustomView to have properties that will be bound to my AppController's propA, propB and propC so that MyCustomView is also notified when those properties are changed? Yes. I am reading on Key-Value observing right now but it seems like if I want to add an observer on my AppController's properties in my CustomView's code I would need an instance to my AppController, which I haven't! Yes. Since they are in the same nib, why not set an outlet to AppController? HTH, Keary Suska Esoteritech, Inc. Demystifying technology for your home or business ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Binding/KVO question
On Wed, Dec 3, 2008 at 4:35 PM, Jean-Nicolas Jolivet [EMAIL PROTECTED] wrote: An AppController with a bunch of properties (lets say propA, probB and probC, all integers) that are bound to my main window's controls... (all sliders..) when the main windows sliders are changed, the properties of AppControllers are changed... You probably shouldn't be doing this. You should instead bind your UI elements to an instance of an NSController subclass, and then bind that controller to the AppController. Speaking of which, is AppController really a good name for what it's doing? Or is it really just an NSApplication delegate? In the same NIB file I have a second window with a custom view inside (Let's call it MyCustomView, in MySecondWindow) is there a way for MyCustomView to have properties that will be bound to my AppController's propA, propB and propC so that MyCustomView is also notified when those properties are changed? A few things here: 1) This second window should probably be in a separate nib. 2) In order to expose bindings on a custom view, you have to package that custom view in an IB plugin. Good news is that IB3 is much better about single-project plugins than IB2 was. In those days, you had to bundle and install your custom views in an IB palette; IB3 should see your plugin in your project and make it available for you right away. 3) Once you've got that down, you would then bind this view's properties to an NSController as well. I am reading on Key-Value observing right now but it seems like if I want to add an observer on my AppController's properties in my CustomView's code I would need an instance to my AppController, which I haven't! If you were able to get to your AppController instance when binding your sliders, and your other window is in the same nib, how could you not be able to get a reference to the AppController when setting up KVO in your custom view? The worst you would have to do is add an outlet on your view. (both MySecondWindow and MyCustomView are outlets of my AppControllers...) Aha. Following my advice above will introduce a retain cycle unless you're careful. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Writing Array of Dictionaries to Defaults (CFPreferences)
I will begin by saying that I figured this out at about 9:30 last night.
On Dec 1, 2008, at 7:08 PM, [EMAIL PROTECTED] wrote:
// Notifies of change of data in table view. Make sure to reflect
changes in datasource.
- (void)tableView:(NSTableView *)aTableView setObjectValue:
(id)anObject forTableColumn:(NSTableColumn *)aTableColumn row:
(NSInteger)rowIndex
{
NSString *columnID = [aTableColumn identifier];
NSMutableArray *scheduleArray = [NSMutableArray
arrayWithArray:_schedules];
// If deactivate time was edited, we create a new schedule with
just that changed.
if ([columnID isEqualToString:kScheduleDeactivateString]) {
NSLog(@Deactivate anObject = %@, anObject);
[[scheduleArray objectAtIndex:rowIndex] setDeactivate:(NSNumber *)
[anObject intValue]];
What are you doing here? You have an object (anObject). Presumably
you think it's an NSNumber. Then, you ask for its intValue, which
returns... an int. An int is _not_ an object, of course. You then
cast that int to an NSNumber*, which is almost certainly wrong. You
then pass it to some method which is probably expecting a pointer to
an actual object, not an int posing as a pointer.
The reason for the undefined object here (anObject) is that this
method is actually a delegate method of NSTableView. I was under the
impression that the delegate methods must be used as is (the prototype
anyway) because that's the message NSTableView is going to send to the
delegate. Depending on what table column was edited (as per the
aTableColumn parameter) I need the object (presumably an NSString*
since all of the table fields are text fields) to be either an
NSString* or an NSNumber*. I know intValue returns an int, and I'm
perfectly aware that an int is not an object, that's obvious. I did
think there was some bridging in place, however, for NSNumber, but you
are right, there isn't. What I really needed was:
[NSNumber numberWithInt:[anObject intValue]]
After changing that part of the line, this part of the method worked
without incident.
}
// If activate time was edited, we create a new schedule with just
that changed.
else if ([columnID isEqualToString:kScheduleActivateString]) {
NSLog(@Activate anObject = %@, anObject);
[[scheduleArray objectAtIndex:rowIndex] setActivate:(NSNumber *)
[anObject intValue]];
You do the same here.
}
// If name was edited, we create a new schedule with just that
changed.
else if ([columnID isEqualToString:kScheduleNameString]) {
NSLog(@Title anObject = %@, anObject);
[[scheduleArray objectAtIndex:rowIndex] setTitle:(NSString
*)anObject];
}
// Iterate through the array to create a new one of
NSDictionaries, not schedules.
NSMutableArray *tmpArray;
You have declared a pointer, but you haven't set it to point to
anything, let alone anything meaningful. It just contains garbage
at this point.
for (Schedule *schedules in scheduleArray) {
[tmpArray addObject:[schedules toDictionary]];
You're calling methods on an uninitialized pointer. This will
probably crash. If you're unlucky, the bug will be hidden by
happenstance (tmpArray may happen to be nil because that's what was
left on the stack).
You needed to initialize tmpArray to point to an actual
NSMutableArray:
NSMutableArray* tmpArray = [NSMutableArray array];
NSLog(@Adding this to array %@, [schedules toDictionary]);
}
// Write the array to preferences in /Library/Preferences.
CFPreferencesSetValue(ScheduleKey, (CFArrayRef)tmpArray,
ApplicationID, kCFPreferencesAnyUser, kCFPreferencesCurrentHost);
Again, tmpArray doesn't contain anything meaningful. So, attempting
to write it out will have undefined results -- probably the crash
you're seeing.
CFPreferencesSynchronize(ApplicationID, kCFPreferencesAnyUser,
kCFPreferencesCurrentHost);
}
The pref pane runs fine. I can add items which calls my
addSchedule method and just adds a blank item to the array. When I
edit the title, it appears to work fine from the gui, but nothing
is written to the plist. If I edit the activate or deactivate
fields then I get the following error and System Preferences crashes.
12/1/08 6:39:59 PM System Preferences[2301] Adding this to array {
activate = 100;
deactivate = 1130;
name = New Schedule;
}
12/1/08 6:39:59 PM System Preferences[2301] *** -[NSCFString
stringValue]: unrecognized selector sent to instance 0x16e63740
Does anyone have any insight about writing array's of dicts to
preferences?
You were also right about the array, I forgot those two little
keywords, a simple oversight. Instead of going through the mess of
making an NSMutableArray and casting as a CFArrayRef, I decided to
just make a CFArrayRef from the get go and ended
Re: Binding/KVO question
Well I'm trying to declare an outlet to my app controller in my custom view but as soon as I added it, the app wouldn't build anymore... (I get 2 errors, one where AppController declares an outlet to my custom view, and one where my custom view declares an outlet to my AppController) Not sure why... there's no specific error messages (just Syntax Error before AppController and Syntax Error before CustomView On 3-Dec-08, at 5:26 PM, Keary Suska wrote: On Dec 3, 2008, at 2:35 PM, Jean-Nicolas Jolivet wrote: In the same NIB file I have a second window with a custom view inside (Let's call it MyCustomView, in MySecondWindow) is there a way for MyCustomView to have properties that will be bound to my AppController's propA, propB and propC so that MyCustomView is also notified when those properties are changed? Yes. I am reading on Key-Value observing right now but it seems like if I want to add an observer on my AppController's properties in my CustomView's code I would need an instance to my AppController, which I haven't! Yes. Since they are in the same nib, why not set an outlet to AppController? HTH, Keary Suska Esoteritech, Inc. Demystifying technology for your home or business Jean-Nicolas Jolivet [EMAIL PROTECTED] http://www.silverscripting.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Special Characters Edit Menu Item
David, I think there must be a way since this menu item doesn¹t show up in my Entourage compose mail window.To be honest, I never noticed this before. It seems to me that there are many cases where special characters are not appropriate. If it really bothered me I guess I would try to delete all the menu items at windowDidLoad or some such and then repopulate. I searched the archives and found no useful information on how to remove the Special Characters menu item from the edit menu. There is no sure fire way to remove this menu item. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Special Characters Edit Menu Item
On Dec 3, 2008, at 3:41 PM, Randy Bradley wrote: David, I think there must be a way since this menu item doesn’t show up in my Entourage compose mail window.To be honest, I never noticed this before. It seems to me that there are many cases where special characters are not appropriate. If it really bothered me I guess I would try to delete all the menu items at windowDidLoad or some such and then repopulate. I'm guessing Entourage is not a Cocoa app? That's probably why. (And a mail compose window would definitely be a place where you'd want to be able to insert special characters...)___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Trouble with array controller - array
Namaste! OK, I'm confounded... I've got an outlet (tblUser) that's an NSArrayController. It is pointing at an Array Controller in my NIB called tblUser. That is point at an Entity called tblUser. The MOC is set up correctly. In my code, I've assigned an (NSArray *) aUser to [tblUser arrangedObjects]. I then proceed to get a count of objects from the array ([aUser count]). For some reason, I get a value of zero. Yet, in another screen, same app, same instance, the count is correct at 1. Same bits of code, only the names are a little different, but the syntax is the same. Anyone care to posit theories as to why this might be happening? Did I miss an intermediate step somewhere? Thanks! Peace, Love, and Light, /s/ Jon C. Munson II ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Binding/KVO question
On Dec 3, 2008, at 3:39 PM, Jean-Nicolas Jolivet wrote: Well I'm trying to declare an outlet to my app controller in my custom view but as soon as I added it, the app wouldn't build anymore... (I get 2 errors, one where AppController declares an outlet to my custom view, and one where my custom view declares an outlet to my AppController) Not sure why... there's no specific error messages (just Syntax Error before AppController and Syntax Error before CustomView There was some really good advice provided by other respondents, so I would take those into serious consideration. Anyway, do you declare a forward class (using @class directive) in each header file? If you don't do this or #import, the compiler won't know what classes you are referring to, and you will get the message you mention. On 3-Dec-08, at 5:26 PM, Keary Suska wrote: On Dec 3, 2008, at 2:35 PM, Jean-Nicolas Jolivet wrote: In the same NIB file I have a second window with a custom view inside (Let's call it MyCustomView, in MySecondWindow) is there a way for MyCustomView to have properties that will be bound to my AppController's propA, propB and propC so that MyCustomView is also notified when those properties are changed? Yes. I am reading on Key-Value observing right now but it seems like if I want to add an observer on my AppController's properties in my CustomView's code I would need an instance to my AppController, which I haven't! Yes. Since they are in the same nib, why not set an outlet to AppController? HTH, Keary Suska Esoteritech, Inc. Demystifying technology for your home or business Jean-Nicolas Jolivet [EMAIL PROTECTED] http://www.silverscripting.com Keary Suska Esoteritech, Inc. Demystifying technology for your home or business ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Adding an application to the login items
I'm writing an installer that adds an application to the login items, but my script (see below) keeps failing, with a bus error, like this: Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Codes: KERN_PROTECTION_FAILURE at 0x Crashed Thread: 0 Thread 0 Crashed: 0 com.apple.CoreFoundation0x96318aa7 CFStringGetLength + 39 1 com.apple.CoreFoundation0x963254b2 CFStringCompare + 18 2 com.apple.LaunchServices0x904e4b61 LSSharedFileListInsertItemURL + 73 3 _objc.so0x00231855 ffi_call_SYSV + 53 4 _objc.so0x00231d6c ffi_call + 147 5 _objc.so0x0023f528 PyObjCFormalProtocol_ForProtocol + 1551 6 org.python.python 0x0011fd3d PyObject_Call + 50 7 org.python.python 0x0018db1a PyEval_EvalFrameEx + 17904 8 org.python.python 0x0018f45b PyEval_EvalCodeEx + 1638 9 org.python.python 0x0018f548 PyEval_EvalCode + 87 10 org.python.python 0x001a69ec PyErr_Display + 1896 11 org.python.python 0x001a7016 PyRun_FileExFlags + 135 12 org.python.python 0x001a8982 PyRun_SimpleFileExFlags + 421 13 org.python.python 0x001b3c03 Py_Main + 3095 14 org.python.pythonapp0x1fca 0x1000 + 4042 Thread 0 crashed with X86 Thread State (32-bit): eax: 0xa07444ec ebx: 0x96318a8a ecx: 0x edx: 0x0007 edi: 0x01f10690 esi: 0x ebp: 0xbfffe8c8 esp: 0xbfffe8b0 ss: 0x001f efl: 0x00010283 eip: 0x96318aa7 cs: 0x0017 ds: 0x001f es: 0x001f fs: 0x gs: 0x0037 cr2: 0x Here's the script -- any advice would be appreciated! TIA, Bill - #!/usr/bin/python # -*- mode: Python -*- import os, sys from Foundation import * from AppKit import * from LaunchServices import * pool = NSAutoreleasePool.alloc().init() try: if len(sys.argv) 2: sys.stderr.write(Usage: %s APPLICATIONPATH\n % sys.argv[0]) sys.exit(1) if not os.path.isdir(sys.argv[1]): sys.stderr.write(Specified application %s not an application.\n % sys.argv[1]) sys.exit(1) url = CFURLRef.alloc().initWithString_(sys.argv[1]) props = NSDictionary.dictionaryWithObject_forKey_(True, kLSSharedFileListItemHidden) login_items = LSSharedFileListCreate( kCFAllocatorDefault, kLSSharedFileListSessionLoginItems, None) NSLog(login_items are %s, url is %s, props are %s % (login_items, url, props)) v = LSSharedFileListInsertItemURL(login_items, kLSSharedFileListItemLast, None, None, url, props, None) NSLog(v is %s % v) finally: del pool ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Adding an application to the login items
On Dec 3, 2008, at 19:36 , Bill Janssen wrote: I'm writing an installer that adds an application to the login items, but my script (see below) keeps failing, with a bus error, like this: You're dereferencing a null pointer. Assert that url is not null after CFURLRef.alloc()... returns. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Live image preview, huge memory usage...
On 03/12/2008, at 6:22 PM, Jean-Nicolas Jolivet wrote: Quick question (2 actually), right now Im drawing my CIImage in a custom view... would drawing the CIImage in my view's drawRect method achieve the same (leak-free) result as your piece of code??? i.e. something simple like: snip As far as I know, as long as you are drawing the CIImage to an on- screen context there will be no memory leak, so this should be fine if the view is in an on-screen window. Second question; my app does batch image processing so eventually I will have to draw those CIImage offscreen.. (only for the Color Control Filter actually)... I assume I have to live with the leak?? No, just use the code I posted which will prevent the leak from occurring when drawing offscreen, you just have to get an existing on- screen context to draw into. The drawing itself happens offscreen, you are just borrowing the on-screen context. You could get the context from anywhere as long as it's a valid on-screen context - in the example I posted I used the main window's context ([[NSApp mainWindow] graphicsContext]) but this is not the only way to do it. -- Rob Keniger ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Adding an application to the login items
Jason Coco [EMAIL PROTECTED] wrote: I'm writing an installer that adds an application to the login items, but my script (see below) keeps failing, with a bus error, like this: You're dereferencing a null pointer. Assert that url is not null after CFURLRef.alloc()... returns. I believe you think url is NULL? I write it to stdout, and it seems good then. Bill ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Live image preview, huge memory usage...
Mmm I guess I was doing something wrong then! When I tried the code you posted, my image covered my main window... which, I assumed was not the expected behavior hehe (I did modify it a bit though... the thing is, I need to get a BitmapImageRep out of it and I'm not so sure how to do it with the code you posted...) J-N On 3-Dec-08, at 8:27 PM, Rob Keniger wrote: On 03/12/2008, at 6:22 PM, Jean-Nicolas Jolivet wrote: Quick question (2 actually), right now Im drawing my CIImage in a custom view... would drawing the CIImage in my view's drawRect method achieve the same (leak-free) result as your piece of code??? i.e. something simple like: snip As far as I know, as long as you are drawing the CIImage to an on- screen context there will be no memory leak, so this should be fine if the view is in an on-screen window. Second question; my app does batch image processing so eventually I will have to draw those CIImage offscreen.. (only for the Color Control Filter actually)... I assume I have to live with the leak?? No, just use the code I posted which will prevent the leak from occurring when drawing offscreen, you just have to get an existing on-screen context to draw into. The drawing itself happens offscreen, you are just borrowing the on-screen context. You could get the context from anywhere as long as it's a valid on-screen context - in the example I posted I used the main window's context ([[NSApp mainWindow] graphicsContext]) but this is not the only way to do it. -- Rob Keniger ___ 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/silvertab%40videotron.ca This email sent to [EMAIL PROTECTED] Jean-Nicolas Jolivet [EMAIL PROTECTED] http://www.silverscripting.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Trouble with array controller - array
Ne'er mind, it somehow fixed itself... And I didn't change the code... Weird... Quoting [EMAIL PROTECTED]: Namaste! OK, I'm confounded... I've got an outlet (tblUser) that's an NSArrayController. It is pointing at an Array Controller in my NIB called tblUser. That is point at an Entity called tblUser. The MOC is set up correctly. In my code, I've assigned an (NSArray *) aUser to [tblUser arrangedObjects]. I then proceed to get a count of objects from the array ([aUser count]). For some reason, I get a value of zero. Yet, in another screen, same app, same instance, the count is correct at 1. Same bits of code, only the names are a little different, but the syntax is the same. Anyone care to posit theories as to why this might be happening? Did I miss an intermediate step somewhere? Thanks! Peace, Love, and Light, /s/ Jon C. Munson II ___ 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/jmunson%40his.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Insertion bug in NSTreeController?
Hi all, I have a very simple model object that I want to use as a tree node in an NSTreeNode hierarchy. It has a NSMutableArray that I am using as the children key for NSTreeController. I'm having a problem when I call - insertObject:atArrangedObjectIndexPath: on NSTreeController where the new object is not inserted at the correct location in the model object's hierarchy if the indexPath has a length greater than 1 (i.e. for any levels lower than the root level). What happens is that the new item is always added as the last item in the array of child objects, no matter what index path I set it to. So if I have this hierarchy: Item 1 Sub Item 1 Sub Item 2 Item 2 And I call -insertObject:atArrangedObjectIndexPath: with an indexPath of [0][0], the tree should look like this: Item 1 New Item Sub Item 1 Sub Item 2 Item 2 What's weird is that the new item is added in the correct location in the NSTreeController's arrangedObjects hierarchy of NSTreeNodes, but the underlying children array always adds the item at the end of the array: Item 1 Sub Item 1 Sub Item 2 New Item Item 2 The backtrace at insertion time is interesting because it's clear that the private class NSTreeControllerTreeNode is calling - insertObject:inSubNodesAtIndex: which is then calling the -addObject: method of NSKeyValueNotifyingMutableArray when it should really be called -insertObject:atIndex:, but of course I have no control over that. #0 -[Item insertObject:inChildrenAtIndex:] #1 -[NSKeyValueFastMutableArray insertObject:atIndex:] #2 -[NSKeyValueFastMutableArray addObject:] #3 -[NSKeyValueNotifyingMutableArray addObject:] #4 -[NSTreeControllerTreeNode insertObject:inSubNodesAtIndex:] #5 -[NSKeyValueFastMutableArray insertObject:atIndex:] #6 -[NSTreeController _insertObject:atArrangedObjectIndexPath:objectHandler:] #7 -[NSTreeController insertObject:atArrangedObjectIndexPath:] #8 -[ItemTreeController add:] Is this a bug, or am I doing something wrong in my implementation? You can see the problem in action in this project: http://menumachine.com/quickies/TreeControllerFail.zip The project uses a very simple model object with an NSMutableArray to hold the children of the object, and a subclass of NSTreeController that modifies the -add: method. To see the problem: 1. Disclose the second level of both outline views 2. Select SubItem 0 3. click the Add Item button. Any help would be much appreciated, I have spent a long time trying to work out what I might be doing wrong. -- Rob Keniger ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSSavePanel mishandling extensions
On 04/12/2008, at 8:09 AM, Russ wrote: This is a builtin feature in Windows, btw, it's a bit silly to have to spend my time to reproduce such a common function. Something like setAllowedFileTypes that takes an NSDictionary of extensions and user-readable equivalents would let NSSavePanel do this all by itself. Seems like a good idea to me, you should file a bug. -- Rob Keniger ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSSavePanel mishandling extensions
On Wed, Dec 3, 2008 at 10:05 PM, Rob Keniger [EMAIL PROTECTED] wrote: Seems like a good idea to me, you should file a bug. To be honest, NSSavePanel and NSOpenPanel should be using UTIs for this by now. I don't know why they're not. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Big picture relationships between NSConnection, NSInputStream, NSOutputStream etc
Hi I'm working my way through the Distributed Objects documentation and am confused about when to use NSConnection, NSInputStream, NSOutputStream etc. The PictureBrowser example project doesn't even seem to use NSConnection and does its thing just fine. Reading the NSConnection docs, I notice the conspicuous absence of any method that actually allows the transfer of messages and data. It just seems like something that allows you to connect to something ... and then has not a single method to actually do anything with that connection. I looked at several of the example projects but they're all over the map. Some use CF functions, some use raw BSD sockets, PictureBrowser uses NSNetService (something not even mentioned in the Distributed Object docs) So what is the overview of the function and interrelationships between these different parts and importantly, what exactly does one do with an NSConnection? Thanks for any 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 [EMAIL PROTECTED]
Programmatically loading an NSImage via other field
Namaste! OK, I'm beat for the day... I'm struggling with how to load an image into an NSImage via another field's value. I have a field that contains a path name of an image file. The user can type it in or select it via OpenFile sheet. This works just fine and I'm setting the underlying data object so the value persists. Now, my question: how do I get that value to propagate over to the image? In Windows, I can monitor via the onChange event for the textbox. Piece of cake. Here, though, I'm a bit perplexed. I thought perhaps the textDidChange delegate method might do it (I put that in my File's Owner, and made the File's Owner a delegate of the NSTextField that contains the image name). However, it doesn't fire e'en though the text clearly changes (onscreen). So, how do I accomplish this should-be-easy feat? Thanks! Peace, Love, and Light, /s/ Jon C. Munson II ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
How to make a RunLoop patiently do nothing?
I want to have a separate thread in my app which does time consuming things. I want to assign tasks to this thread using performSelector:onThread. Now you can't have a runloop with no input sources, or it exits immediately. So how do I start a thread with a runloop that does nothing except patiently wait for performSelector:onThread: calls? Start your day with Yahoo!7 and win a Sony Bravia TV. Enter now http://au.docs.yahoo.com/homepageset/?p1=otherp2=aup3=tagline ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Programmatically loading an NSImage via other field
[EMAIL PROTECTED] ([EMAIL PROTECTED]) on 2008-12-03 10:23 PM said: I'm struggling with how to load an image into an NSImage via another field's value. I have a field that contains a path name of an image file. The user can type it in or select it via OpenFile sheet. This works just fine and I'm setting the underlying data object so the value persists. Now, my question: how do I get that value to propagate over to the image? When do you want it to? on every keypress? or when the user presses return? If the latter, use the action method. The former could be problematic from a usability point of view. What if the folder has files named Picture1 and Picture12? When I have typed Picture1 you would start a slow operation before I want. The latter is also problematic because it requires the user to press return, and it's not necessarily obvious that that is required. Might I suggest using an NSPathControl (with NSPathStylePopUp) instead of a textfield? It would allow the user to drag and drop a file, or choose one through an open panel. It sends an action to its target when the user provides a new file. You could update your NSImage from the action method. Sean ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How to make a RunLoop patiently do nothing?
could you stick a useless, firing in a million years, timer in it? how willl you eventually make it shut down even if you do do that, or will it just hang out there until the application terminates? Chris Idou wrote: I want to have a separate thread in my app which does time consuming things. I want to assign tasks to this thread using performSelector:onThread. Now you can't have a runloop with no input sources, or it exits immediately. So how do I start a thread with a runloop that does nothing except patiently wait for performSelector:onThread: calls? Start your day with Yahoo!7 and win a Sony Bravia TV. Enter now http://au.docs.yahoo.com/homepageset/?p1=otherp2=aup3=tagline ___ 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/rols%40rols.org This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How to make a RunLoop patiently do nothing?
Chris Idou ([EMAIL PROTECTED]) on 2008-12-03 10:44 PM said: I want to have a separate thread in my app which does time consuming things. I want to assign tasks to this thread using performSelector:onThread. Now you can't have a runloop with no input sources, or it exits immediately. So how do I start a thread with a runloop that does nothing except patiently wait for performSelector:onThread: calls? Could you just add a timer to the runloop? The timer could be periodic, firing every 42 years. Sean ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Programmatically loading an NSImage via other field
Something like this should get you in the ballpark
MyController : NSObject
{
IBOutlet NSTextField*imagePathField;
IBOutlet NSImageView*imageView;
}
// register controller to receive messages from the text field
- (void) awakeFromNib
{
[imagePathField setDelegate: self];
}
// when user hits return key, the text field calls this handler
allowing you to respond
- (void) controlTextDidEndEditing:(NSNotification *) inNotification
{
// check message type
if ([[inNotification name] isEqualToString:
NSControlTextDidEndEditingNotification])
{
// type OK, check which object sent message. (can be used to respond
to multipe text fields)
if ([inNotification object] == imagePathField)
{
// get text from field and try to load it into a new
image
NSImage *tempImage = [NSImage imageWithContentsOfFIe:
[imagePathField stringValue]];
// set the image in the image view
if (tempImage != nil)
[imageView setImage: tempImage];
}
}
}
On Dec 3, 2008, at 10:23 PM, [EMAIL PROTECTED] wrote:
Namaste!
OK, I'm beat for the day...
I'm struggling with how to load an image into an NSImage via another
field's value.
I have a field that contains a path name of an image file. The
user can type it in or select it via OpenFile sheet. This works
just fine and I'm setting the underlying data object so the value
persists.
Now, my question: how do I get that value to propagate over to the
image?
In Windows, I can monitor via the onChange event for the textbox.
Piece of cake.
Here, though, I'm a bit perplexed.
I thought perhaps the textDidChange delegate method might do it (I
put that in my File's Owner, and made the File's Owner a delegate of
the NSTextField that contains the image name). However, it doesn't
fire e'en though the text clearly changes (onscreen).
So, how do I accomplish this should-be-easy feat?
Thanks!
Peace, Love, and Light,
/s/ Jon C. Munson II
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Re: How to make a RunLoop patiently do nothing?
--- On Wed, 3/12/08, Roland King [EMAIL PROTECTED] wrote: could you stick a useless, firing in a million years, timer in it? Ok. how will you eventually make it shut down even if you do do that, or will it just hang out there until the application terminates? Good question. I had assumed that something like [myThread performSelector:@selector(exit) onThread:myThread ... would do the trick. Would this be a nice way to do it? Chris Idou wrote: I want to have a separate thread in my app which does time consuming things. I want to assign tasks to this thread using performSelector:onThread. Now you can't have a runloop with no input sources, or it exits immediately. So how do I start a thread with a runloop that does nothing except patiently wait for performSelector:onThread: calls? Start your day with Yahoo!7 and win a Sony Bravia TV. Enter now http://au.docs.yahoo.com/homepageset/?p1=otherp2=aup3=tagline ___ 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/rols%40rols.org This email sent to [EMAIL PROTECTED] Start your day with Yahoo!7 and win a Sony Bravia TV. Enter now http://au.docs.yahoo.com/homepageset/?p1=otherp2=aup3=tagline ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
How to display simple dialog at application startup?
Hi all, From the 'should be easy department'... :) I'd like my app to (sometimes) display a modal dialog at launch. It should appear before anything else, and no other interaction should be possible until it is dismissed. Something like the licence agreement each new version of iTunes makes you accept... So from applicationWillFinishLaunching:, I've tried NSAlert's runModal and NSApplication's runModalForWindow. Both mostly work. But with the latter, the initial untitled document never appears, and with the former it appears before my dialog is dismissed. My problem is, seemingly, with AppleEvents. The 'application open' event is either being handled too early or is discarded. Surely there is a clean way to achieve this? Thanks, Sean ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How to make a RunLoop patiently do nothing?
Chris Idou ([EMAIL PROTECTED]) on 2008-12-03 11:00 PM said: how will you eventually make it shut down even if you do do that, or will it just hang out there until the application terminates? Good question. I had assumed that something like [myThread performSelector:@selector(exit) onThread:myThread ... would do the trick. Would this be a nice way to do it? Well, the docs for exit say Invoking this method should be avoided as it does not give your thread a chance to clean up any resources it allocated during its execution. You said you wanted your thread to 'patiently wait for performSelector:onThread: calls'? When do you want it to stop waiting? If at app quit time, then just leave it around. If earlier, then just send it a message to clean itself up (dealloc memory, etc.) and invalidate the timer. Then you are back to having no runloop sources and voila. Sean ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Big picture relationships between NSConnection, NSInputStream, NSOutputStream etc
Thanks John. That cleared up a few things.
Ultimately, what I want to do, is talk directly to a MySQL database
without the need for the MySQL libraries. The libraries target
specific processors and OS versions which makes maintenance a royal
pain. I was thinking I could bypass the whole library zoo by doing
something ike the following
#define DEFAULT_MYSQL_PORT_NUMBER 3306
#define DEFAULT_HOST_NAME @locahost
NSSocketPort *socket = [[NSSocketPort alloc] initRemoteWithTCPPort:
DEFAULT_MYSQL_PORT_NUMBER host: DEFAULT_HOST_NAME];
NSConnection *connection = [[NSConnection alloc] initWithReceivePort:
nil sendPort: socket];
In tests, this seemed to connect OK, but I take it from your
explanation, that I would need to send objective C messages which MySQ
doesn't grok. In this case, would I need to set up one or both of
NSInputStream, NSOutputStream to send and receive data? Or would I
have to go even lower into BSD socked land (a la PictureBrowser) to do
this sort of thing?
On Dec 3, 2008, at 10:54 PM, John Pannell wrote:
Hi Ken-
I have spent a lot of time in those docs :-) In a nutshell, here's
how I see NSConnection and DO... properly set up, NSConnections on
the server and client side can enable you to pretty much ignore the
fact that two objects live in separate processes. You'll just use
regular obj-c messaging between them. On the server side, you get a
connection, assign it a root object, and advertise its presence:
NSConnection *theConnection = [NSConnection defaultConnection];
[theConnection setRootObject:myServerController];
if(![theConnection registerName:@myServerName]){
// undesirable, but unlikely
}
On the client side, you need to grab the server-side object (the
vended object in the docs) like so...
id myServerObject = [[NSConnection
rootProxyForConnectionWithRegisteredName:@myServerName host:nil]
retain];
You might typically specify a communications protocol to use (an obj-
c protocol that you create defining the messages that the server
object understands), and also message the server with a reference to
self (the client object) so the server can hang on to a reference to
it...
[(NSDistantObject *)myServerObject
setProtocolForProxy:@protocol(myServerProtocol)];
[myServerObject setClientObject:self];
(Note that setClientObject is something you implement yourself,
can be named as desired, and its function is to retain a reference
to the client object). Now the server can send regular objective-c
messages to the client object, and the client can send regular
objective-c messages to the server object. Both objects are
represented by a stand-in instance of NSDistantObject in each
other's address spaces.
Using NSConnection as above, you really don't need any of the other
classes you mentioned.
Some caveats: Distributed Objects is not present in the iPhone OS,
and I have encountered troubles (that did not have workarounds last
I heard) when using DO with garbage collection.
Also to clarify, NSNetService is not directly related to DO, but
might be more familiar to you as Bonjour - it is used to discover
other processes that advertise their presence on the network.
Hope this helps!
John
Positive Spin Media
http://www.positivespinmedia.com
On Dec 3, 2008, at 8:22 PM, Ken Tozier wrote:
Hi
I'm working my way through the Distributed Objects documentation
and am confused about when to use NSConnection, NSInputStream,
NSOutputStream etc. The PictureBrowser example project doesn't even
seem to use NSConnection and does its thing just fine. Reading the
NSConnection docs, I notice the conspicuous absence of any method
that actually allows the transfer of messages and data. It just
seems like something that allows you to connect to something ...
and then has not a single method to actually do anything with that
connection.
I looked at several of the example projects but they're all over
the map. Some use CF functions, some use raw BSD sockets,
PictureBrowser uses NSNetService (something not even mentioned in
the Distributed Object docs) So what is the overview of the
function and interrelationships between these different parts and
importantly, what exactly does one do with an NSConnection?
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Re: How to display simple dialog at application startup?
Maybe you could launch your own untitled document, if that's what you need? --- On Wed, 3/12/08, Sean McBride [EMAIL PROTECTED] wrote: From: Sean McBride [EMAIL PROTECTED] Subject: How to display simple dialog at application startup? To: cocoa-dev@lists.apple.com Received: Wednesday, 3 December, 2008, 8:07 PM Hi all, From the 'should be easy department'... :) I'd like my app to (sometimes) display a modal dialog at launch. It should appear before anything else, and no other interaction should be possible until it is dismissed. Something like the licence agreement each new version of iTunes makes you accept... So from applicationWillFinishLaunching:, I've tried NSAlert's runModal and NSApplication's runModalForWindow. Both mostly work. But with the latter, the initial untitled document never appears, and with the former it appears before my dialog is dismissed. My problem is, seemingly, with AppleEvents. The 'application open' event is either being handled too early or is discarded. Surely there is a clean way to achieve this? Thanks, Sean ___ 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/idou747%40yahoo.com This email sent to [EMAIL PROTECTED] Start your day with Yahoo!7 and win a Sony Bravia TV. Enter now http://au.docs.yahoo.com/homepageset/?p1=otherp2=aup3=tagline ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Special Characters Edit Menu Item
On Wed, Dec 3, 2008 at 5:41 PM, Randy Bradley [EMAIL PROTECTED] wrote: David, I think there must be a way since this menu item doesn¹t show up in my Entourage compose mail window.To be honest, I never noticed this before. It seems to me that there are many cases where special characters are not appropriate. If it really bothered me I guess I would try to delete all the menu items at windowDidLoad or some such and then repopulate. Consider that the special characters palette is system-wide, not app-specific. A user may activate it in another app and then bring yours up with the palette still available, even though it's not appropriate. A user may also wish to activate it within your app before switching to another app where it is appropriate, and will be annoyed to find that you've removed the command. Also consider that there's more to your app than just your code. For example, it would be reasonable to use this palette to ender text into the search box in the Help menu (although this doesn't actually work on Leopard, it would seem) and there may be other text fields around that you haven't explicitly created. Mike ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How to make a RunLoop patiently do nothing?
On Wed, Dec 3, 2008 at 11:11 PM, Sean McBride [EMAIL PROTECTED] wrote: You said you wanted your thread to 'patiently wait for performSelector:onThread: calls'? When do you want it to stop waiting? If at app quit time, then just leave it around. If earlier, then just send it a message to clean itself up (dealloc memory, etc.) and invalidate the timer. Then you are back to having no runloop sources and voila. Don't do this. When the docs say that your runloop will exit when no sources are installed on the runloop, this is a warning, not a guide for how to make it exit. The system may install its own sources and not remove them just because you want to exit, in which case your thread will run forever. Worse, this may happen on an OS release later than the one you tested with, causing your app to leak threads after you've already shipped it. The best way would probably be to do something like this: NSDate *distantFuture = [NSDate distantFuture]; NSThread *myThread = [NSThread currentThread]; NSRunLoop *runLoop = [NSRunLoop currentRunLoop]; while(![myThread isCancelled]) [runLoop runMode:NSDefaultRunLoopMode beforeDate:distantFuture]; Then to kill the thread, do [thread cancel] and then you'll have to jog its runloop, so fire off a dummy message to it as well to make it fall out and hit the while again and exit cleanly. Mike ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Windows-Friendly Attachments
I have the following NSAppleScript code that works as part of a loop
that goes through an array to send emails with an attachment:
[emailStriptString setString:[NSString stringWithFormat:@tell
application \Mail\\n set newMessage to make new outgoing message
with properties {subject:\[EMAIL PROTECTED], content:\[EMAIL PROTECTED] return}\n tell
newMessage\n set visible to true\n make new attachment with properties
{file name:\[EMAIL PROTECTED]} at after last paragraph\n make new to recipient at
end of to recipients with properties {name:\\, address:\[EMAIL PROTECTED]}\n end
tell\n end tell\n, subject_String, body_String, [[email_Array
objectAtIndex:i]objectAtIndex:email_PathTo_Attachment],
recipient_String]];
First question: After Mail starts and creates the emails, I cannot
determine from the email itself if the attachment is windows-
friendly. That option is checked in the mail program under the Edit-
Attachments menu. However, can one tell from looking at the email
that it is windows-friendly?
Second, is there an attachment property that I can add to the above
code to ensure that the attachment is windows-friendly?
Thanks,
John
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Re: Big picture relationships between NSConnection, NSInputStream, NSOutputStream etc
Hi Ken-
You've got it: the intent with NSConnection is to vend proxy objects
and get proxy objects for the DO system, facilitating communication
via obj-c messaging.
I can't speak from much experience on your other options. Apple seems
to provide a number of levels of networking abstraction - I can't
speak to which would be best for your task... hopefully some others
have better expertise!
John
On Dec 3, 2008, at 9:14 PM, Ken Tozier wrote:
Thanks John. That cleared up a few things.
Ultimately, what I want to do, is talk directly to a MySQL database
without the need for the MySQL libraries. The libraries target
specific processors and OS versions which makes maintenance a royal
pain. I was thinking I could bypass the whole library zoo by doing
something ike the following
#define DEFAULT_MYSQL_PORT_NUMBER 3306
#define DEFAULT_HOST_NAME @locahost
NSSocketPort *socket = [[NSSocketPort alloc]
initRemoteWithTCPPort: DEFAULT_MYSQL_PORT_NUMBER host:
DEFAULT_HOST_NAME];
NSConnection *connection = [[NSConnection alloc]
initWithReceivePort: nil sendPort: socket];
In tests, this seemed to connect OK, but I take it from your
explanation, that I would need to send objective C messages which
MySQ doesn't grok. In this case, would I need to set up one or both
of NSInputStream, NSOutputStream to send and receive data? Or would
I have to go even lower into BSD socked land (a la PictureBrowser)
to do this sort of thing?
On Dec 3, 2008, at 10:54 PM, John Pannell wrote:
Hi Ken-
I have spent a lot of time in those docs :-) In a nutshell, here's
how I see NSConnection and DO... properly set up, NSConnections on
the server and client side can enable you to pretty much ignore the
fact that two objects live in separate processes. You'll just use
regular obj-c messaging between them. On the server side, you get
a connection, assign it a root object, and advertise its presence:
NSConnection *theConnection = [NSConnection defaultConnection];
[theConnection setRootObject:myServerController];
if(![theConnection registerName:@myServerName]){
// undesirable, but unlikely
}
On the client side, you need to grab the server-side object (the
vended object in the docs) like so...
id myServerObject = [[NSConnection
rootProxyForConnectionWithRegisteredName:@myServerName host:nil]
retain];
You might typically specify a communications protocol to use (an
obj-c protocol that you create defining the messages that the
server object understands), and also message the server with a
reference to self (the client object) so the server can hang on to
a reference to it...
[(NSDistantObject *)myServerObject
setProtocolForProxy:@protocol(myServerProtocol)];
[myServerObject setClientObject:self];
(Note that setClientObject is something you implement yourself,
can be named as desired, and its function is to retain a reference
to the client object). Now the server can send regular objective-c
messages to the client object, and the client can send regular
objective-c messages to the server object. Both objects are
represented by a stand-in instance of NSDistantObject in each
other's address spaces.
Using NSConnection as above, you really don't need any of the other
classes you mentioned.
Some caveats: Distributed Objects is not present in the iPhone OS,
and I have encountered troubles (that did not have workarounds last
I heard) when using DO with garbage collection.
Also to clarify, NSNetService is not directly related to DO, but
might be more familiar to you as Bonjour - it is used to discover
other processes that advertise their presence on the network.
Hope this helps!
John
Positive Spin Media
http://www.positivespinmedia.com
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custom view binding to NSTreeController
I am creating a custom view which I would like to bind to NSTreeController. I have tried observing both [treeController arrangedObjects] and [[treeController arrangedObjects] childNodes]. Both seem to only notify that a change has occurred and do not provide any details about the change (insertion, removal, etc). If this is the case, you would have to walk the entire tree every time a change happens in order to detect changes. This seems like a pretty bad idea. There must be a better way to do this. I am hoping somebody can share an example of how to implement the observation necessary to create a custom view that binds to NSTreeController. Does anybody have sample code? Is anyone able to provide a high level idea of how NSOutlineView and NSBrowser do this? Is it even possible to do this efficiently with public API? Thanks, Matthew ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Beginner memory management question
I am not sure how one would go about working this, Im writing my first
test os/x applications and I am thinking this is probably not right.
Am I doing the retain in the correct place? I tried reading the
documentation on NSTextField but it didnt give me a clue about if I
needed to retain. (Infact stringValue is not even mentioned in the
NSTextField documentation).
@interface StockListController : NSObject {
IBOutlet NSTextField* stockName;
NSString *newName;
}
-(IBAction) addStockItem:(id)sender;
@end
@implementation StockListController
-(IBAction) addStockItem:(id)sender {
if(newName == nil) [newName release];
newName = [stockName stringValue];
[newName retain];
}
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Correct location to store application data.
I have an application which contains a dictionary file of sorts. Users can add/alter/and remove entries from a dictionary. I assume I will have the default dictionary stored as part of the application bundle somehow, and I should be saving a copy of some sort in a second hidden location, ie it doesnt make sense to store it in the Documents folder. Best regards, Jacob ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Linking CFBundle with static libraries
Hi All, I'm developing a CFBundle plugin and would like to link it with some static libraries as I want only to distribute the CFBundle without the need to also distribute shared libraries (.dylib). The reason I have elected to use CFBundle is that I require the ability to load and unload plugins and as far as I have seen, this is not possible with NSBundle. See: http://developer.apple.com/documentation/CoreFoundation/Reference/CFBundleRef/Reference/reference.html My plugin, written in C++, builds without any problems when I link to dynamic libraries but when I try to link to static equivalents I get the following error from gcc: ld: absolute addressing (perhaps -mdynamic-no-pic) used in ___tcf_0 from /Users/botmanx/Documents/src/trunk/Build/Debug/libboost- filesystem.a(error_code.o) not allowed in slidable image. Use '- read_only_relocs suppress' to enable text relocs On seeing this, I added the '-read_only_relocs suppress' CFlag to my build options as the compiler suggested but the error remains. Does anyone know how I might get around this problem? Thanks in advance, Frank ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
self = [super init];
self = [super init]; Why does the above line of code not cause a memory leak or memory fault? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
NSOutlineView initial expansion
I've trolled through the archives looking for help on this, but I
can't seem to find anything that quite works. I'm trying to set it up
such that an NSOutlineView starts out fully expanded. In the
delegate, I have the following code:
- (void)awakeFromNib
{
[outline expandItem:nil expandChildren:YES];
}
I feel like I'm missing something rather obvious, since the same code
works when it's attached to a button. Is there a better place to put
it than in awakeFromNib:?
Thank you so much both for your help and your patience.
Peace,
Andy
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Re: Custom Window Resize Image
Hi, NSDrawNinePartImage may do the job... Regards Abin On 12/4/08, Mr. Gecko [EMAIL PROTECTED] wrote: Hello, I'm writing a custom window for my application, but I can't figure out how to make a custom resize image... Any help? Thanks, Mr. Gecko ___ 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/abinthomas.parecattil%40gmail.com This email sent to [EMAIL PROTECTED] -- Aby ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: self = [super init];
On Wed, Dec 3, 2008 at 1:14 PM, EVS [EMAIL PROTECTED] wrote: self = [super init]; Why does the above line of code not cause a memory leak or memory fault? Why do you think it should leak memory or cause a memory fault? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Big picture relationships between NSConnection, NSInputStream, NSOutputStream etc
On Wed, Dec 3, 2008 at 11:14 PM, Ken Tozier [EMAIL PROTECTED] wrote: Thanks John. That cleared up a few things. Ultimately, what I want to do, is talk directly to a MySQL database without the need for the MySQL libraries. The libraries target specific processors and OS versions which makes maintenance a royal pain. I was thinking I could bypass the whole library zoo by doing something ike the following #define DEFAULT_MYSQL_PORT_NUMBER 3306 #define DEFAULT_HOST_NAME @locahost NSSocketPort*socket = [[NSSocketPort alloc] initRemoteWithTCPPort: DEFAULT_MYSQL_PORT_NUMBER host: DEFAULT_HOST_NAME]; NSConnection*connection = [[NSConnection alloc] initWithReceivePort: nil sendPort: socket]; In tests, this seemed to connect OK, but I take it from your explanation, that I would need to send objective C messages which MySQ doesn't grok. In this case, would I need to set up one or both of NSInputStream, NSOutputStream to send and receive data? Or would I have to go even lower into BSD socked land (a la PictureBrowser) to do this sort of thing? NSConnection is for distributed objects and nothing else. Despite the name it is *not* a general-purpose IPC mechanism. As such, it only works for talking to other Cocoa programs (and only if they're prepared to accept distributed objects connections), so using it for MySQL is Right Out. If you create a pair of NSStreams with a socket then it provides you with essentially a direct wrapper for the BSD socket stuff. (It is so direct that the -read: and -write: methods have the exact same semantics as the read() and write() functions despite not being documented this way for at least one or two OS revisions.) I've found NSStream to be the most convenient way for dealing with sockets in a Cocoa app in most situations, but you can certainly feel free to hit the BSD layer or use one of the other free sockets wrappers if you prefer. Mike ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Beginner memory management question
On Dec 3, 2008, at 3:13 AM, Jacob Rhoden wrote:
I am not sure how one would go about working this, Im writing my
first test os/x applications and I am thinking this is probably
not right. Am I doing the retain in the correct place?
Yes, but that's not your problem.
I tried reading the documentation on NSTextField but it didnt give
me a clue about if I needed to retain.
That's because the documentation has assumed you've read the rules for
memory management. Read those rules ASAP, or turn on garbage
collection and let the collector manage memory.
(Infact stringValue is not even mentioned in the NSTextField
documentation).
That's because it's a method of NSControl, of which NSTextField is a
subclass. And it's mentioned in the NSControl documentation.
-(IBAction) addStockItem:(id)sender {
if(newName == nil) [newName release];
I think you meant to make that a !=, not a ==. Right now your code is
calling -release if it is nil, which makes no sense.
Nick Zitzmann
http://www.chronosnet.com/
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Re: Beginner memory management question
What you should do is declare newName as a property and then do
self.newName = [stockName stringValue];
The synthesized property will take care of retaining and releasing for
you.
Luke
Sent from my iPhone.
On Dec 3, 2008, at 2:13 AM, Jacob Rhoden [EMAIL PROTECTED] wrote:
I am not sure how one would go about working this, Im writing my
first test os/x applications and I am thinking this is probably
not right. Am I doing the retain in the correct place? I tried
reading the documentation on NSTextField but it didnt give me a clue
about if I needed to retain. (Infact stringValue is not even
mentioned in the NSTextField documentation).
@interface StockListController : NSObject {
IBOutlet NSTextField* stockName;
NSString *newName;
}
-(IBAction) addStockItem:(id)sender;
@end
@implementation StockListController
-(IBAction) addStockItem:(id)sender {
if(newName == nil) [newName release];
newName = [stockName stringValue];
[newName retain];
}
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Re: self = [super init];
What makes you think that it would? Sent from my iPhone. On Dec 3, 2008, at 11:14 AM, EVS [EMAIL PROTECTED] wrote: self = [super init]; Why does the above line of code not cause a memory leak or memory fault? ___ 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/luketheh%40apple.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Linking CFBundle with static libraries
On Dec 3, 2008, at 7:33 AM, frank wrote: The reason I have elected to use CFBundle is that I require the ability to load and unload plugins and as far as I have seen, this is not possible with NSBundle. See: It doesn't matter; CFBundle and NSBundle are two sides of a coin. They aren't toll-free bridged, however. And C and C++ bundles can be unloaded. In Tiger and earlier, Objective- C bundles couldn't be unloaded in any way whatsoever. I'm not sure if this was addressed in Leopard. ld: absolute addressing (perhaps -mdynamic-no-pic) used in ___tcf_0 from /Users/botmanx/Documents/src/trunk/Build/Debug/libboost- filesystem.a(error_code.o) not allowed in slidable image. Use '- read_only_relocs suppress' to enable text relocs On seeing this, I added the '-read_only_relocs suppress' CFlag to my build options as the compiler suggested but the error remains. Does anyone know how I might get around this problem? Are you sure the static library was built correctly? Libraries of any sort cannot contain position-independent code, and that linker error suggests that the static library was compiled with the -mdynamic-no- pic option. Do you have the source code for the static library? Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: self = [super init];
Usually self does not change, when the instance returned is different to the initially self then it is because the super init has decided that the initial self is not what it whats so it releases the initially self and returns a different object. This can happen for singltons or cluster object or perhaps in a suation where the object represents some resource and if there is already an object for that resource the new instance is released and a retained version of the original instance is returned in its place. On 04/12/2008, at 06:14 , EVS wrote: self = [super init]; Why does the above line of code not cause a memory leak or memory fault? ___ 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/nathan_day%40mac.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: custom view binding to NSTreeController
On 03/12/2008, at 11:51 AM, Matthew Johnson wrote:
I am creating a custom view which I would like to bind to
NSTreeController. I have tried observing both [treeController
arrangedObjects] and [[treeController arrangedObjects] childNodes].
Both seem to only notify that a change has occurred and do not
provide any details about the change (insertion, removal, etc). If
this is the case, you would have to walk the entire tree every time
a change happens in order to detect changes. This seems like a
pretty bad idea. There must be a better way to do this.
Not as far as I know, there's a bit of manual work in implementing
this. I'd love to hear if anyone has a better way to do it.
I am hoping somebody can share an example of how to implement the
observation necessary to create a custom view that binds to
NSTreeController. Does anybody have sample code? Is anyone able to
provide a high level idea of how NSOutlineView and NSBrowser do
this? Is it even possible to do this efficiently with public API?
You can definitely do it as I am doing it at present, although you can
only do it in 10.5+ as NSTreeController is horribly broken in 10.4.
Here is some code, edited in mail:
@implementation NSTreeController (Additions)
//returns a flattened array of all the real objects in the tree.
//We use this to handle registration and deregistration of observers
of the objects that are being managed
-(NSArray *) treeNodesAsArray:(NSArray*)nodes
{
NSMutableArray* theObjectArray=[NSMutableArray array];
for(NSTreeNode *node in nodes)
{
[theObjectArray addObject:[node representedObject]];
if([[node childNodes] count])
{
[theObjectArray addObjectsFromArray:[self treeNodesAsArray:[node
childNodes]]];
}
}
return theObjectArray;
}
-(NSArray*) representedObjects
{
if([self childrenKeyPath]==nil)
return nil;
NSArray* arrangedObjects=[self arrangedObjects];
if(arrangedObjects==nil)
return nil;
NSArray* childNodes=[[self arrangedObjects]childNodes];
if(childNodes==nil)
return nil;
return [self treeNodesAsArray:childNodes];
}
@end
Then, in your controller:
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object
change:(NSDictionary *)change context:(void *)context
{
if (context == MyObservationContext)
{
NSArray *items = [treeController representedObjects];
//if there has been no change, don't do anything
if([items isEqualToArray:self.oldItems])
return;
//get the items that have been added to the array
NSMutableArray *newItems = [items mutableCopy];
[newItems removeObjectsInArray: self.oldItems];
NSMutableArray *removedItems = [self.oldItems mutableCopy];
[removedItems removeObjectsInArray:items];
//stop observing the removed items
[self stopObservingOldItemProperties:removedItems];
//start observing the new items
[self startObservingNewItemProperties:newItems];
//store the current array of items as the old array so we can
compare it next time
self.oldItems=items;
//do whatever UI adjustments you need to do
}
--
Rob Keniger
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Re: How to make a RunLoop patiently do nothing?
On Dec 3, 2008, at 11:24 PM, Michael Ash wrote: On Wed, Dec 3, 2008 at 11:11 PM, Sean McBride [EMAIL PROTECTED] wrote: You said you wanted your thread to 'patiently wait for performSelector:onThread: calls'? When do you want it to stop waiting? If at app quit time, then just leave it around. If earlier, then just send it a message to clean itself up (dealloc memory, etc.) and invalidate the timer. Then you are back to having no runloop sources and voila. Don't do this. When the docs say that your runloop will exit when no sources are installed on the runloop, this is a warning, not a guide for how to make it exit. The system may install its own sources and not remove them just because you want to exit, in which case your thread will run forever. Worse, this may happen on an OS release later than the one you tested with, causing your app to leak threads after you've already shipped it. The best way would probably be to do something like this: NSDate *distantFuture = [NSDate distantFuture]; NSThread *myThread = [NSThread currentThread]; NSRunLoop *runLoop = [NSRunLoop currentRunLoop]; while(![myThread isCancelled]) [runLoop runMode:NSDefaultRunLoopMode beforeDate:distantFuture]; Then to kill the thread, do [thread cancel] and then you'll have to jog its runloop, so fire off a dummy message to it as well to make it fall out and hit the while again and exit cleanly. In addition to what Mike said, you should add an NSPort to ensure the runloop has at least one source, or it may exit immediately: [runLoop addPort:[NSPort port] forMode:NSDefaultRunLoopMode]; while ( )... Adding a timer as others suggested may work, but adding an NSPort is a fairly standard way to do this (the archives give examples of this). -- Adam smime.p7s Description: S/MIME cryptographic signature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
How to draw rounded Images
Hi, How to draw rounded images (like application icons) for iPhone. Regards, SRIDHAR. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSOutlineView initial expansion
If your outline's data is being populated from an NSTreeController
then the fetch isn't happening until the next iteration of the event
loop. If I understand it correctly this is done so that it can present
any errors as a sheet on your window.
Try delaying your call to expandItem: in your awakeFromNib.
- (void)expandAllItems {
[outline expandItem:nil expandChildren:YES];
}
- (void)awakeFromNib {
/* snip */
[self performSelector:@selector(expandAllItems) withObject:nil
afterDelay:0.0];
}
I believe that should work.
Ashley
On Dec 3, 2008, at 3:36 PM, Andrew Shamel wrote:
I've trolled through the archives looking for help on this, but I
can't seem to find anything that quite works. I'm trying to set it
up such that an NSOutlineView starts out fully expanded. In the
delegate, I have the following code:
- (void)awakeFromNib
{
[outline expandItem:nil expandChildren:YES];
}
I feel like I'm missing something rather obvious, since the same
code works when it's attached to a button. Is there a better place
to put it than in awakeFromNib:?
Thank you so much both for your help and your patience.
Peace,
Andy
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Re: NSOutlineView initial expansion
Ahh, brilliant!! It worked a treat.
Thanks so much!
Try delaying your call to expandItem: in your awakeFromNib.
- (void)expandAllItems {
[outline expandItem:nil expandChildren:YES];
}
- (void)awakeFromNib {
/* snip */
[self performSelector:@selector(expandAllItems) withObject:nil
afterDelay:0.0];
}
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Re: Correct location to store application data.
If the data in the dictionary is simple you could perhaps look at NSUserDefaults, you could use your dictionary file to initialise NSUserDefaults, alternatively you could create a separate file in preferences. Be warned that you can only stick property list types in NSUserDefaults. On 03/12/2008, at 21:20 , Jacob Rhoden wrote: I have an application which contains a dictionary file of sorts. Users can add/alter/and remove entries from a dictionary. I assume I will have the default dictionary stored as part of the application bundle somehow, and I should be saving a copy of some sort in a second hidden location, ie it doesnt make sense to store it in the Documents folder. Best regards, Jacob ___ 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/nathan_day%40mac.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[MEET] Cocoa Heads Sydney - Inaugural Christmas Drinks - Wednesday 17th at 6:30 pm
Hi all, You are cordially invited to the Cocoa Heads Sydney Inaugural Christmas Drinks event with the following details. Wednesday December 17th at 6:30 pm Redoak Boutique Beer Cafe 201 Clarence Street, Sydney, NSW 2000 Australia Map: http://is.gd/aakN Bar food menu: http://www.redoak.com.au/03_00.html Beer menu: http://www.redoak.com.au/02_00.html The first planned regular meetup will be in January, so if you want to help decide what night to meet on in addition to enjoying specialty beers and tasting plates, you need to be there! A gleaming pile of laptops will surely guide you, else call me on my mobile: 0438 700 647. The Sydney CocoHeads mailing list/google group/calendar etc. is at http://groups.google.com/group/sydney-cocoaheads Hope to see you there! Cheers, Mark. -- Mark Aufflick contact info at http://mark.aufflick.com/about/contact ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Big picture relationships between NSConnection, NSInputStream, NSOutputStream etc
Thanks Mike Still trying to get my head around this stuff, but here's how I interpret what I need to do... Create a connection to MySQL #define DEFAULT_MYSQL_PORT_NUMBER 3306 socket = [[NSSocketPort alloc] initRemoteWithTCPPort: DEFAUT_MYSQL_PORT_NUMBER host: @some host]; Register as the delegate of the port [socket setDelegate: self]; Add to run loop [[NSRunLoop mainRunLoop] addPort: socket forMode: NSDefaultRunLoopMode]; Here's where I lose the thread. As the delegate, do I need to implement - (void) handlePortMessage:(NSPortMessage *) inPortMessage Or, because I'm dealing with something that has no concept of NSPortMessage, do I need to use NSInput/NSOutput streams? If so, where in the process do I squeeze those in? Also very confused about which stream I would receive replies from MySQL (assuming I could successfully connect) If I send a message through an NSOutputStream, wouldn't MySQL send the reply back through the same stream? I don't see how it could do otherwise as it has no idea who the client app is, or how to connect and build it's own NSOutput stream with which to reply. On Dec 4, 2008, at 12:23 AM, Michael Ash wrote: NSConnection is for distributed objects and nothing else. Despite the name it is *not* a general-purpose IPC mechanism. As such, it only works for talking to other Cocoa programs (and only if they're prepared to accept distributed objects connections), so using it for MySQL is Right Out. If you create a pair of NSStreams with a socket then it provides you with essentially a direct wrapper for the BSD socket stuff. (It is so direct that the -read: and -write: methods have the exact same semantics as the read() and write() functions despite not being documented this way for at least one or two OS revisions.) I've found NSStream to be the most convenient way for dealing with sockets in a Cocoa app in most situations, but you can certainly feel free to hit the BSD layer or use one of the other free sockets wrappers if you prefer. Mike ___ 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/kentozier%40comcast.net This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How to draw rounded Images
How to draw rounded images (like application icons) for iPhone.
The normal way is to create a rounded NSBezierPath, set the clipping,
and then do your drawing.
I believe rounded rect NSBezierPath was added in 10.5. I use the
following category code for 10.4.
NSBezierPath* myRoundedIconRect = [NSBezierPath
bezierPathWithRoundedRect:NSInsetRect(itemRect,-0.5,-0.5)
cornerRadius:kIAIconRadius];
[myRoundedIconRect fill];
or
[myRoundedRect addClip];
// do whatever drawing you want
Don't forget to save and restore the NSGraphicsContext
CGContextRef context = (CGContextRef)[[NSGraphicsContext
currentContext] graphicsPort];
CGContextSaveGState( context );
and
CGContextRef context = (CGContextRef)[[NSGraphicsContext
currentContext] graphicsPort];
CGContextRestoreGState( context );
Sorry about the code formatting.
@implementation NSBezierPath (RoundedRect)
+ (NSBezierPath *)bezierPathWithRoundedRect:(NSRect)rect
cornerRadius:(float)radius {
NSBezierPath *result = [NSBezierPath bezierPath];
[result appendBezierPathWithRoundedRect:rect cornerRadius:radius];
return result;
}
- (void)appendBezierPathWithRoundedRect:(NSRect)rect
cornerRadius:(float)radius {
if (!NSIsEmptyRect(rect)) {
if (radius 0.0) {
// Clamp radius to be no larger than half the rect's width or height.
float clampedRadius = MIN(radius, 0.5 * MIN(rect.size.width,
rect.size.height));
NSPoint topLeft = NSMakePoint(NSMinX(rect), NSMaxY(rect));
NSPoint topRight = NSMakePoint(NSMaxX(rect), NSMaxY(rect));
NSPoint bottomRight = NSMakePoint(NSMaxX(rect), NSMinY(rect));
[self moveToPoint:NSMakePoint(NSMidX(rect), NSMaxY(rect))];
[self appendBezierPathWithArcFromPoint:topLeft
toPoint:rect.origin radius:clampedRadius];
[self appendBezierPathWithArcFromPoint:rect.origin
toPoint:bottomRight radius:clampedRadius];
[self appendBezierPathWithArcFromPoint:bottomRight
toPoint:topRightradius:clampedRadius];
[self appendBezierPathWithArcFromPoint:topRight
toPoint:topLeft radius:clampedRadius];
[self closePath];
} else {
// When radius == 0.0, this degenerates to the simple case of a
plain rectangle.
[self appendBezierPathWithRect:rect];
}
}
}
@end
Enjoy,
Peter.
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Re: Special Characters Edit Menu Item
On 4 Dec 2008, at 04:17:22, Michael Ash wrote: Consider that the special characters palette is system-wide, not app-specific. A user may activate it in another app and then bring yours up with the palette still available, even though it's not appropriate. A user may also wish to activate it within your app before switching to another app where it is appropriate, and will be annoyed to find that you've removed the command. Also consider that there's more to your app than just your code. For example, it would be reasonable to use this palette to ender text into the search box in the Help menu (although this doesn't actually work on Leopard, it would seem) and there may be other text fields around that you haven't explicitly created. In addition to what Michael wrote, it is possible for the user to open the character palette from the Input Menu. It is impossible to stop the user getting at the character palette. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Help Menu
I have been required to develop and build with Xcode 2.41 on 10.4.11. In testing on 10.5.5 I get two help menus. Is there something I need to do for Help on 10.5.x ? David Blanton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
