Re: Rendering big PDF into thumbnail bitmap - too blurry
Eurica! Two things were wrong: 1) There was a 0.5 pixel shift transform in my graphics context imposed earlier in the stack. I use this to render bezier curves to integer pixels, but for rendering bitmaps this offset needs to be reset. After fixing this, however, there was still a little blur, but way less than before. 2) I switched to using NSBitmapImageRep and +[NSGraphicsContext graphicsContextWithBitmapImageRep] instead of the offscreen NSImage and lockFocus. The latter is obsolete BTW. See the example: http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaDrawingGuide/Images/chapter_7_section_5.html#//apple_ref/doc/uid/TP40003290-CH208-BCICHFGA (the Drawing Directly to a Bitmap section) On Wed, Sep 24, 2008 at 8:48 AM, Oleg Krupnov [EMAIL PROTECTED] wrote: Yes, I tried it and it doesn't seem to have any effect. I have just double-checked regarding - [NSBitmapImageRep initWithFocusedViewRect]. For an experiment I saved the bitmap to a tiff file right after capturing the bitmap from screen, and it appears that the tiff is sharp, not blurry. It looks like the temporary thumbnail NSImage spoils the whole thing, but I can't figure out how to bypass it. On Wed, Sep 24, 2008 at 8:41 AM, Ken Thomases [EMAIL PROTECTED] wrote: On Sep 24, 2008, at 12:33 AM, Oleg Krupnov wrote: What could be the problem? Have you tried using -[NSGraphicsContext setImageInterpolation:] after locking focus? Cheers, 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: Rendering big PDF into thumbnail bitmap - too blurry
On 24.09.2008, at 08:24, Oleg Krupnov wrote: The latter is obsolete BTW. See the example: http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaDrawingGuide/Images/chapter_7_section_5.html#/ /apple_ref/doc/uid/TP40003290-CH208-BCICHFGA (the Drawing Directly to a Bitmap section) What, specifically, are you referring to? I see nowhere that it says anything was obsolete. Just suggest certain solutions for certain OS versions. Or am I missing something here? Cheers, -- Uli Kusterer The Witnesses of TeachText are everywhere... http://www.zathras.de ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: Converting from Carbon Event Manager to NSTimer
On 24.09.2008, at 01:20, Dan Birns wrote: My application needs to set a timer that causes a function to be called at a time in the future. This is non-repeating, and sometimes has be immediate. I need it to be as efficient as possible, because it's called frequently. Have you checked out the various performSelector: methods available? Particularly performSelector:withObject:afterDelay: seems to be a shorthand that might work much better. In any case though, watch out for Cocoa's run loop modes. By default, timers only get scheduled on NSDefaultRunLoopMode, so if you want your timer to also fire in NSModalPanelRunLoopMode or NSTrackingRunLoopMode (names from memory, may vary slightly), you may need to use the appropriate calls (the inModes: variant, or do an addTimer for the additional modes). self.timer = [NSTimer scheduledTimerWithTimeInterval: t // seconds target: self selector: @selector (mainLoopTimer:) userInfo: nil repeats: NO]; This is working fine, but our performance is poor. It's not so poor that it's obviously broken, but I'm looking for ways to improve it. I've been try to alloc one NSTimer that I reuse, and I've had no success doing so. How did you measure this? What value is 't' ? I've tried timer = [NSTimer alloc]; [timer initWithFireDate:[NSDate date] interval:t target:self selector:@selector(mainLoopTimer:) userInfo:halTimer repeats:NO]; [[NSRunLoop currentRunLoop] addTimer:timer forMode:NSDefaultRunLoopMode]; Why are you discarding the result of initWithFireDate:? You could be talking to the completely wrong object here. You really should use the ObjC [[NSClass alloc] init] idiom here, everything is engineered towards that, and timer is not guaranteed to be valid after the init call, you're supposed to re-set it to whatever the init returned. Cheers, -- Uli Kusterer The Witnesses of TeachText are everywhere... http://www.zathras.de ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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 make a cocoa lib wich create a window ?
Hi,
thanks, when I launch a simple app with this code it works :
#import Cocoa/Cocoa.h
#import MyOgView.h
int main(int argc, char *argv[])
{
//use TransformProcessType to transform non gui processs in gui process
//voir -[NSApplication runModalForWindow:].
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
NSWindow *window;
MyOgView *ogView;
ogView = [[MyOgView alloc] initWithFrame:NSMakeRect(0,100,500,375) ];
window = [[NSWindow alloc]
initWithContentRect:NSMakeRect(50,100,640,480)
styleMask:NSTitledWindowMask |
NSResizableWindowMask
backing:NSBackingStoreBuffered
defer:TRUE];
const ProcessSerialNumber psn = { 0, kCurrentProcess };
TransformProcessType(psn, kProcessTransformToForegroundApplication);
SetFrontProcess(psn);
//add title to the window
[window setTitle:@toto gl];
//attach glview on the window
[[window contentView] addSubview:ogView];
//[[window contentView] addSubview:button];
[NSApplication sharedApplication];
[window makeKeyAndOrderFront: nil];
[pool release];
[NSApp run];
return 0;
}
But when I use this code in a dynamic library it not work, I can't see the
window, have you got an idea ?
Regards,
tmator.
2008/9/19 Ken Thomases [EMAIL PROTECTED]
On Sep 18, 2008, at 11:38 PM, rouanet brice wrote:
I work on a projetc where the executable haven't GUI but I can launch
somme
gui window with plugins.
test - no gui application
-plugin
-triangle - this plugin display a triangle in a cocoa window
-rectangle - this plugin display a rectangle in a cocoa window
All plugins works in standolone applications, but when I launch test, I
cant
see the window.
You need a couple of things. First, you will need to use
TransformProcessType to turn your non-GUI process into a GUI process.
Second, you will need to initialize an NSApplication and its connection to
the window server. Read the class overview for NSApplication. You will
also need to run the event loop somehow. Normally, this would be done using
-[NSApplication run], but you may be able to get away with just
-[NSApplication runModalForWindow:].
Cheers,
Ken
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Re: CGLayer questions
Le 24 sept. 08 à 06:04, Alex Reynolds a écrit : Is it possible to take a CGLayer and turn it into a bitmap representation? Create a CGBitmapContext and draw you layer into it. Also, is it possible to grab a CGRect subset of a CGLayer and append that to a new CGLayer, so that it isn't necessary to recalculate the entirety of a new CGLayer? CGContextRef ctxt = CGLayerGetContext(mySecondLayer); CGContextClipToRect(ctxt, …) CGContextDrawLayerInRect(ctxt, myFirstLayer, …); Thanks, Alex ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Rendering big PDF into thumbnail bitmap - too blurry
Well, it's my interpretation that because the new technique was introduced in Mac OS 10.4 and later, the older technique has become obsolete. Not deprecated or invalid though. Here's the original quote: In Mac OS X v10.4 and later, it is possible to create a bitmap image representation object and draw to it directly. This technique is simple and does not require the creation of any extraneous objects, such as an image or window. If your code needs to run in earlier versions of Mac OS X, however, you cannot use this technique. On Wed, Sep 24, 2008 at 9:59 AM, Uli Kusterer [EMAIL PROTECTED] wrote: On 24.09.2008, at 08:24, Oleg Krupnov wrote: The latter is obsolete BTW. See the example: http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaDrawingGuide/Images/chapter_7_section_5.html#//apple_ref/doc/uid/TP40003290-CH208-BCICHFGA (the Drawing Directly to a Bitmap section) What, specifically, are you referring to? I see nowhere that it says anything was obsolete. Just suggest certain solutions for certain OS versions. Or am I missing something here? Cheers, -- Uli Kusterer The Witnesses of TeachText are everywhere... http://www.zathras.de ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: Rendering big PDF into thumbnail bitmap - too blurry
On 24.09.2008, at 09:50, Oleg Krupnov wrote: Well, it's my interpretation that because the new technique was introduced in Mac OS 10.4 and later, the older technique has become obsolete. Not deprecated or invalid though. Ah! Sorry, brain-freeze there... somehow I ended up in 'creating a bitmap'... thanks. Cheers, -- Uli Kusterer The Witnesses of TeachText are everywhere... http://www.zathras.de ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: Very basic Bindings question
On Sep 24, 2008, at 04:21 , Adil Saleem wrote:
Hi,
I am trying to use bindings for the first time. So this is a pretty
basic question.
As an example what i am trying to do is that i have a NSTextField in
which user enters some numeric value. I have a int type variable in
my class that is binded to the value field of this text field. I get
the value in the variable correctly. But the problem is that the
accessor method that i have written are not called. If i print
something in the accessor methods, it is not printed on the console.
Here is the code.
I have declared in myClass.h
@interface myClass: NSObject {
int Var;
}
-(void)setVar:(int)aNumber;
-(int)getVar;
Don't use getVar (also, don't start a variable with a capital
letter)... the correct naming convention is this:
@interface MyClass : NSObject { // the convention is to start class
names with a capital letter
int var;
}
-(void)setVar:(int)aNumber; // the setter message should be the word
set + [capital first letter] + rest of variable name
-(int)var; // the getter message should have the same name as
the variable
HTH, Jason
smime.p7s
Description: S/MIME cryptographic signature
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Re: Very basic Bindings question
file:///Developer/Documentation/DocSets/com.apple.ADC_Reference_Library.CoreReference.docset/Contents/Resources/Documents/documentation/Cocoa/Conceptual/KeyValueCoding/Concepts/Compliant.htmlfile:///Developer/Documentation/DocSets/com.apple.ADC_Reference_Library.CoreReference.docset/Contents/Resources/Documents/documentation/Cocoa/Conceptual/KeyValueCoding/Concepts/Compliant.html
Hi,
here is how accessors should be defined. Watch the case too.
file:///Developer/Documentation/DocSets/com.apple.ADC_Reference_Library.CoreReference.docset/Contents/Resources/Documents/documentation/Cocoa/Conceptual/KeyValueCoding/Concepts/Compliant.html
HTH
Raphael
On Wed, Sep 24, 2008 at 10:21 AM, Adil Saleem [EMAIL PROTECTED]wrote:
Hi,
I am trying to use bindings for the first time. So this is a pretty basic
question.
As an example what i am trying to do is that i have a NSTextField in which
user enters some numeric value. I have a int type variable in my class
that is binded to the value field of this text field. I get the value in the
variable correctly. But the problem is that the accessor method that i have
written are not called. If i print something in the accessor methods, it is
not printed on the console.
Here is the code.
I have declared in myClass.h
@interface myClass: NSObject {
int Var;
}
-(void)setVar:(int)aNumber;
-(int)getVar;
In the myClass.m i have
@implementation myClass
-(void)setVar:(int)aNumber {
Var = aNumber;
}
-(int)getVar
{
return Var;
}
Why are these functions not being called ? Am i missing something in the
syntax or is it something else.
Thanx
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Image processing in Cocoa
Hi guys, is there some good tutorial around about how to manipulate bitmaps in Cocoa? I would be interested on: - copy portion of image over another with a mask (this should be pretty straight forward with quartz2d) - apply threshold - apply effects like blur Not sure if some of this, like the blur, is recommended to do from an higher level instead of doing it pixel by pixel. In case of the latter, how to get the bytearray with all the pixels info? Thanks a lot, chr ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: lauchd and svnserve
On Sep 24, 2008, at 10:24 AM, René v Amerongen wrote: [...] 1.)While svnserve is running, in my Subversion_SVNserve.log log I see. svnserve: Root path '/Volumes/Development_Current/_CodeRepository' does not exist or is not a directory. svnserve: Root path '/Volumes/Development_Current/_CodeRepository' does not exist or is not a directory. svnserve: Can't bind server socket: Address already in use svnserve: Can't bind server socket: Address already in use svnserve: Can't bind server socket: Address already in use ... and at the console I see the Launchd log 24-09-08 10:06:36 com.apple.launchd[1] (subversion.svnserve[684]) Exited with exit code: 1 24-09-08 10:06:36 com.apple.launchd[1] (subversion.svnserve) Throttling respawn: Will start in 10 seconds 24-09-08 10:06:46 com.apple.launchd[1] (subversion.svnserve[685]) Exited with exit code: 1 24-09-08 10:06:46 com.apple.launchd[1] (subversion.svnserve) Throttling respawn: Will start in 10 seconds . Yesterday I did have a huge PID number a little scary. Why is it trying to start again? Because that's launchd designed behavior. How can I stop that? Remove your launchd script and restart the Mac. or use the launchctl(1) tool 2.) When I unmount the drive, then the svnserve keeps running. I thought the the daemon will get killed. However it restart when the drive is mounted back online. But how can I get this killed when unmounting the drive. 3.) Actualy I would like to have it start at demand and kills after 10 minutes. I notice that the OnDemand key is gone in 10.5. But how should I do it now? 4.) I did see a few sample script with ip socket info in the plist, what is that for? Do I need that? You should probably ask these questions on the darwin-dev mailing list. Cocoa-dev is for Cocoa-MacOnly questions. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: Image processing in Cocoa
On 24 Sep 2008, at 10:50, Christian Giordano wrote: Hi guys, is there some good tutorial around about how to manipulate bitmaps in Cocoa? I would be interested on: - copy portion of image over another with a mask (this should be pretty straight forward with quartz2d) [[NSImage alloc] initWithSize:] [image lockFocus] [sourceImage drawAtPoint:point fromRect:imagePortionRect operation:operation fraction:1.0] [image unlockFocus] - apply threshold - apply effects like blur Core Image is your friend Not sure if some of this, like the blur, is recommended to do from an higher level instead of doing it pixel by pixel. In case of the latter, how to get the bytearray with all the pixels info? Thanks a lot, chr ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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]
Re: lauchd and svnserve
don't run it like that. the 'd' argument means daemon-ize and it's a requirement of launchd that processes do NOT do that. What's happening is the process is starting, it immediately backgrounds itself, which means the process launchd starts dies, then launchd tries to start it up again but it can't because there is a background daemon process (the one you just started) hogging the socket. Eventually launchd gives up trying to respawn it and the error messages in the console stop, and the daemon one is still there. launchd cannot control processes which do that. You're also clearly trying to start it up too early, so the first few really do actually just die and launchd starts them up again, but it doesn't really know what it's doing. You could run it in foreground mode by changing that '-d' to '-- foreground'. That will stop launchd going totally nuts trying to keep starting it up again because it will stay up, and if it does fall down, launchd will correctly start it for you again. however a much better idea is to put it into inetd mode and only start up on demand when someone asks for it, I don't know about you but I don't use my repository very much. For that you need the file which follows. That will start one in inetd mode when someone makes a request on the svn port. In that way the process will be down most of the time which is less strain on the server and it won't start until someone asks for it, which means you shouldn't have all those volume mounting issues. ?xml version=1.0 encoding=UTF-8? !DOCTYPE plist PUBLIC -//Apple Computer//DTD PLIST 1.0//EN http://www.apple.com/DTDs/PropertyList-1.0.dtd plist version=1.0 dict keyDisabled/key false/ keyLabel/key stringorg.tigris.subversion.svnserve/string keyProgramArguments/key array string/usr/local/bin/svnserve/string string--inetd/string string--root=Volumes/Development_Current/_CodeRepository/ string /array keyServiceDescription/key stringSubversion Standalone Server/string keySockets/key dict keyListeners/key array dict keySockFamily/key stringIPv4/string keySockServiceName/key stringsvn/string keySockType/key stringstream/string /dict /array /dict keyinetdCompatibility/key dict keyWait/key false/ /dict /dict /plist On Sep 24, 2008, at 4:24 PM, René v Amerongen wrote: Dear list Not sure where to put this question, but I did see here more of launchd questions. I got svnserve running with the following plist. ?xml version=1.0 encoding=UTF-8? !DOCTYPE plist PUBLIC -//Apple//DTD PLIST 1.0//EN http://www.apple.com/DTDs/PropertyList-1.0.dtd plist version=1.0 dict keyKeepAlive/key dict keyPathState/key dict key/Volumes/Development_Current/_CodeRepository/key true/ /dict /dict keyLabel/key stringsubversion.svnserve/string keyProgramArguments/key array string/usr/local/bin/svnserve/string string-d/string string-r/string string/Volumes/Development_Current/_CodeRepository/string /array keyRunAtLoad/key true/ keyStandardErrorPath/key string/Library/Logs/Subversion_SVNserve.log/string /dict /plist My Volumes/Development_Current/ volume is a firewire disk and when the plist get fired the drive isn't ready yet. But when it comes up the svnserve starts up en works ok. Just a second but with two or three does not exist or is not a directory lines Some questions however. 1.)While svnserve is running, in my Subversion_SVNserve.log log I see. svnserve: Root path '/Volumes/Development_Current/_CodeRepository' does not exist or is not a directory. svnserve: Root path '/Volumes/Development_Current/_CodeRepository' does not exist or is not a directory. svnserve: Can't bind server socket: Address already in use svnserve: Can't bind server socket: Address already in use svnserve: Can't bind server socket: Address already in use ... and at the console I see the Launchd log 24-09-08 10:06:36 com.apple.launchd[1] (subversion.svnserve[684]) Exited with exit code: 1 24-09-08 10:06:36 com.apple.launchd[1] (subversion.svnserve) Throttling respawn: Will start in 10 seconds 24-09-08 10:06:46 com.apple.launchd[1] (subversion.svnserve[685]) Exited with exit code: 1 24-09-08 10:06:46 com.apple.launchd[1] (subversion.svnserve) Throttling respawn: Will start in 10 seconds . Yesterday I did have a huge PID number a little scary. Why is it trying to start again? How can I stop that? what is wrong with my plist? 2.) When I unmount the drive, then the svnserve keeps running. I thought the the daemon will get killed. However it restart when the drive is mounted back online. But how can I get this killed when
Re: lauchd and svnserve
Hi Roland, thanks for the explaining. Your script is allmost 100% that what I did use with 10.4, except I did have also ipv6 sockets there. But it did stop working under 10.5. I will try yours. Otherwise I will fall back with the foreground option. thanks René Op 24 sep 2008, om 12:49 heeft Roland King het volgende geschreven: don't run it like that. the 'd' argument means daemon-ize and it's a requirement of launchd that processes do NOT do that. What's happening is the process is starting, it immediately backgrounds itself, which means the process launchd starts dies, then launchd tries to start it up again but it can't because there is a background daemon process (the one you just started) hogging the socket. Eventually launchd gives up trying to respawn it and the error messages in the console stop, and the daemon one is still there. launchd cannot control processes which do that. You're also clearly trying to start it up too early, so the first few really do actually just die and launchd starts them up again, but it doesn't really know what it's doing. You could run it in foreground mode by changing that '-d' to '-- foreground'. That will stop launchd going totally nuts trying to keep starting it up again because it will stay up, and if it does fall down, launchd will correctly start it for you again. however a much better idea is to put it into inetd mode and only start up on demand when someone asks for it, I don't know about you but I don't use my repository very much. For that you need the file which follows. That will start one in inetd mode when someone makes a request on the svn port. In that way the process will be down most of the time which is less strain on the server and it won't start until someone asks for it, which means you shouldn't have all those volume mounting issues. ?xml version=1.0 encoding=UTF-8? !DOCTYPE plist PUBLIC -//Apple Computer//DTD PLIST 1.0//EN http://www.apple.com/DTDs/PropertyList-1.0.dtd plist version=1.0 dict keyDisabled/key false/ keyLabel/key stringorg.tigris.subversion.svnserve/string keyProgramArguments/key array string/usr/local/bin/svnserve/string string--inetd/string string--root=Volumes/Development_Current/_CodeRepository/ string /array keyServiceDescription/key stringSubversion Standalone Server/string keySockets/key dict keyListeners/key array dict keySockFamily/key stringIPv4/string keySockServiceName/key stringsvn/string keySockType/key stringstream/string /dict /array /dict keyinetdCompatibility/key dict keyWait/key false/ /dict /dict /plist On Sep 24, 2008, at 4:24 PM, René v Amerongen wrote: Dear list 2.) When I unmount the drive, then the svnserve keeps running. I thought the the daemon will get killed. However it restart when the drive is mounted back online. But how can I get this killed when unmounting the drive. Thanks in advance René ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: lauchd and svnserve
I hope you don't mind sharing my plist. Please note the 'PathState', that avoids the mentioned mount issues. In addition, I use User/Group settings and decimal umask 23 (027 octal). ?xml version=1.0 encoding=UTF-8? !DOCTYPE plist PUBLIC -//Apple//DTD PLIST 1.0//EN http://www.apple.com/DTDs/PropertyList-1.0.dtd plist version=1.0 dict keyDebug/key false/ keyGroupName/key string_svn/string keyKeepAlive/key dict keyPathState/key string/opt/sw/var/lib/svn/string /dict keyLabel/key stringlocal.svnserve/string keyOnDemand/key false/ keyProgramArguments/key array string/opt/sw/bin/svnserve/string string--daemon/string string--foreground/string string--root/string string/opt/sw/var/lib/svn/string string--listen-host/string string0.0.0.0/string /array keyRunAtLoad/key true/ keyUserName/key string_svn/string keyUmask/key integer23/integer /dict /plist On 24.09.2008, at 12:49, Roland King wrote: don't run it like that. the 'd' argument means daemon-ize and it's a requirement of launchd that processes do NOT do that. What's happening is the process is starting, it immediately backgrounds itself, which means the process launchd starts dies, then launchd tries to start it up again but it can't because there is a background daemon process (the one you just started) hogging the socket. Eventually launchd gives up trying to respawn it and the error messages in the console stop, and the daemon one is still there. launchd cannot control processes which do that. You're also clearly trying to start it up too early, so the first few really do actually just die and launchd starts them up again, but it doesn't really know what it's doing. You could run it in foreground mode by changing that '-d' to '-- foreground'. That will stop launchd going totally nuts trying to keep starting it up again because it will stay up, and if it does fall down, launchd will correctly start it for you again. however a much better idea is to put it into inetd mode and only start up on demand when someone asks for it, I don't know about you but I don't use my repository very much. For that you need the file which follows. That will start one in inetd mode when someone makes a request on the svn port. In that way the process will be down most of the time which is less strain on the server and it won't start until someone asks for it, which means you shouldn't have all those volume mounting issues. ?xml version=1.0 encoding=UTF-8? !DOCTYPE plist PUBLIC -//Apple Computer//DTD PLIST 1.0//EN http://www.apple.com/DTDs/PropertyList-1.0.dtd plist version=1.0 dict keyDisabled/key false/ keyLabel/key stringorg.tigris.subversion.svnserve/string keyProgramArguments/key array string/usr/local/bin/svnserve/string string--inetd/string string--root=Volumes/Development_Current/_CodeRepository/ string /array keyServiceDescription/key stringSubversion Standalone Server/string keySockets/key dict keyListeners/key array dict keySockFamily/key stringIPv4/string keySockServiceName/key stringsvn/string keySockType/key stringstream/string /dict /array /dict keyinetdCompatibility/key dict keyWait/key false/ /dict /dict /plist On Sep 24, 2008, at 4:24 PM, René v Amerongen wrote: Dear list Not sure where to put this question, but I did see here more of launchd questions. I got svnserve running with the following plist. ?xml version=1.0 encoding=UTF-8? !DOCTYPE plist PUBLIC -//Apple//DTD PLIST 1.0//EN http://www.apple.com/DTDs/PropertyList-1.0.dtd plist version=1.0 dict keyKeepAlive/key dict keyPathState/key dict key/Volumes/Development_Current/_CodeRepository/key true/ /dict /dict keyLabel/key stringsubversion.svnserve/string keyProgramArguments/key array string/usr/local/bin/svnserve/string string-d/string string-r/string string/Volumes/Development_Current/_CodeRepository/string /array keyRunAtLoad/key true/ keyStandardErrorPath/key string/Library/Logs/Subversion_SVNserve.log/string /dict /plist My Volumes/Development_Current/ volume is a firewire disk and when the plist get fired the drive isn't ready yet. But when it comes up the svnserve starts up en works ok. Just a second but with two or three does not exist or is not a directory lines Some questions however. 1.)While svnserve is running, in my Subversion_SVNserve.log log I see. svnserve: Root path
How to track Slider's value while dragging the mouse?
NSSlider only changes its value (and fires its target/action and the binding) when the user releases the mouse button. Whereas I need to track the current value of the slider while the mouse is being dragged, with the button held down -- like thumbnail size in iPhoto. I can't believe I have to implement my own slider to get this behavior. Neither I can find the property of NSSlider that would make it behave like this. Am I missing something? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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 track Slider's value while dragging the mouse?
Hi Oleg, The property you want is setContinuous:YES, or check the Continuous checkbox in Interface Builder. (The method is defined on NSSilder's superclass, NSControl.) Hope this helps, - Greg On Sep 24, 2008, at 7:08 AM, Oleg Krupnov wrote: NSSlider only changes its value (and fires its target/action and the binding) when the user releases the mouse button. Whereas I need to track the current value of the slider while the mouse is being dragged, with the button held down -- like thumbnail size in iPhoto. I can't believe I have to implement my own slider to get this behavior. Neither I can find the property of NSSlider that would make it behave like this. Am I missing something? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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/greg%40omnigroup.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: Creating alias programatically
On Wed, Sep 24, 2008 at 1:43 AM, Charles Srstka [EMAIL PROTECTED] wrote: [source appendFormat:@set theAlias to make alias at POSIX file \[EMAIL PROTECTED] to POSIX file \[EMAIL PROTECTED]\n, NSTemporaryDirectory(), originalPath]; Please never do anything like this. This will fail horribly if either one of these two paths contains certain perfectly legal characters, such as . It's best to use something like the scripting bridge or objc-appscript. If you must use AppleScript, then you should write the script as a subroutine which takes the paths as parameters, then invoke it using something like the code on this page: http://www.cocoadev.com/index.pl?CallAppleScriptFunction 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 track Slider's value while dragging the mouse?
- setContinuous: setContinuous: Sets whether the receiver’s cell sends its action message continuously to its target during mouse tracking. - (void)setContinuous:(BOOL)flag Parameters flag YES if the action message should be sent continuously; otherwise, NO. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: CALayers inside NSSplitView (clipping issue)
Hi All, Someone kindly suggested that I post the question again, but that this time I make some sense :-) Good idea I say... So - step by step, first a series of facts to set the scene: 1. i have an NSSplitView 2. both of the views that this split view contains use CALayer instances 3. in the lower view is a track-view style control, it allows one to drag tracks up and down 4. the track view in the lower part of the NSSplitView is contained in an NSScrollView instance (which is usual for splitters of course - nothing abnormal so far). next: here's a screen shot of the app working properly - in this screenshot, I've started the app but not resized anything or moved anything yet. http://skitch.com/johnclayton/s5fr/picture-1 now, imagine that I take the mouse, and I use it to drag that horribly purple coloured track straight down. the desired effects are: - the layer is moved downwards - the view expands in the vertical direction (gets larger, but thats ok right - cos its in a scrollview) - the vertical scrollbar should appear in the NSScrollView - the NSScrollView / NSClipView should clip the contents view now, here's a screenshot of the bug: http://skitch.com/johnclayton/s5fa/picture-3 so I wonder what is causing the calayer instance to NOT be clipped in this case. The NSClipView inside the scrollview should be clipping, right? Thanks -- John Clayton Skype: johncclayton On 24/09/2008, at 5:58 AM, John Clayton wrote: Hi All, I have a vertically laid out NSSplitView which is hosting two NSViews, both of which contain CALayer instances. In the bottom view, there's a scroll view - and I can drag stuff within the view - which in turn causes the view to grow. Sometimes, the splitview doesn't clip the CALayer *at all*, and I see this: http://skitch.com/johnclayton/s4gc/picture-2 I resize the contents of the split-view during mouseDragged: (along with its layers), does anyone know of issues with this or perhaps has an idea of whats going wrong? Thanks -- John Clayton Skype: johncclayton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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/john_clayton %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: Image processing in Cocoa
Thanks Mike, I can't use NSImage (guess why) but a subset. Btw, the problem I have is that I have a view which contains an image. I would like to draw in the image, not in the container view so I need to provide to the draw method the image context. Is this a good approach or all the drawing should happen in the view context? Should I extend the image view and handle the routing internally? Thanks, chr On Wed, Sep 24, 2008 at 11:08 AM, Mike Abdullah [EMAIL PROTECTED] wrote: On 24 Sep 2008, at 10:50, Christian Giordano wrote: Hi guys, is there some good tutorial around about how to manipulate bitmaps in Cocoa? I would be interested on: - copy portion of image over another with a mask (this should be pretty straight forward with quartz2d) [[NSImage alloc] initWithSize:] [image lockFocus] [sourceImage drawAtPoint:point fromRect:imagePortionRect operation:operation fraction:1.0] [image unlockFocus] - apply threshold - apply effects like blur Core Image is your friend Not sure if some of this, like the blur, is recommended to do from an higher level instead of doing it pixel by pixel. In case of the latter, how to get the bytearray with all the pixels info? Thanks a lot, chr ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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]
What does @loader_path refer to when loading ibplugins from a linked-in framework?
Greetings, I have followed the Interface Builder Plug-in Programmation Guide in order to make my first ibplugin and there is one problem I haven't been able to solve yet. It is stated that when opening a nib file, interface builder looks at every linked-in framework from the associated xcode project and automatically loads all the ibplugins located in the resources folder of these frameworks. And this is the only behaviour which I can't reproduce. I have already searched a lot in order to make this work and up to now, I am using @loader_path/../Frameworks as the installation directory for my framework. I have added a run script build phase which creates a symbolic link in the Contents folder of my ibplugin file so that it points to the location where my Framework resides (6 folders higher in the folder hierarchy: ../../../../../..) and this way I have been able to load up my plugin both in my application and through the plugins tab in Interface Builder's preferences. Although, if I start Interface Builder without having the plugin already installed and that I open up a nib from a xcode project which links with my framework, it fails to load the nib file saying that the required plug-ins aren't installed. I have tried running Interface Builder from the command line in order to see any error messages but nothing is being printed to the console unlike what happens if I try to manually install the plug-in. In fact I used these console errors to figure out how to create my symbolic link. Now that I've presented my problem, here is my question. Is it possible that @loader_path is different when Interface Builder loads up ibplugins from linked-in frameworks than when one manually adds a plugin through the preferences window? If that is the case, maybe another well placed symbolic link could finally allow my plugin to work in every use case I can imagine. thanks -Dalzhim ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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]
NSOperation NSOperationQueue
Greetings. I need a clarification about the NSOpration ans NSOperationQueue I read in the documentation that the NSOperation itself is non concurrent. and that i can program it to be, if I override this and that method. and configure the runtime env. I assume that means create my own threads(NSTasks). But the NSOperationQueue can be set to execute X number of NSOperations at the same time. in fact you have to set a limit to this guy or else he executes all of them at the same time. when execute and look at my logs strings they are all mixed up as if everything was running concurrently. so is this the right assumption:) If I use NSOperation, override only the main method, I get a non concurrent object to run a particular piece of code. Stack these lovely objects in an operationQueue and set setMaxConcurrentOperationCount to 4. The Queue itself is the one managing the concurrency. and I will have 4 operations runing at the same time? thank you! Sandro ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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 to static text
Am Do,11.09.2008 um 02:38 schrieb James Walker: I have a static text item whose value is bound to an NSUserDefaultsController. It correctly shows the value stored as a default. However, if I programmatically change the text (with - [NSControl setStringValue:]), the new value does not get saved. What am I missing? -- James W. Walker, Innoventive Software LLC http://www.frameforge3d.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/negm-awad%40cocoading.de This email sent to [EMAIL PROTECTED] The bound property (stringValue) of the bound object (instance of NSControl) is set automatically, when the observed property (dont' know) of the observed object (instance of NSUserDefaultsController) changes. Nothing is done in the opposite direction (changing the bound property programmatically) cheers, Amin Negm-Awad [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: NSOperation NSOperationQueue
On Wed, Sep 24, 2008 at 11:56 AM, Sandro Noel [EMAIL PROTECTED] wrote: I need a clarification about the NSOpration ans NSOperationQueue ... If I use NSOperation, override only the main method, I get a non concurrent object to run a particular piece of code. Stack these lovely objects in an operationQueue and set setMaxConcurrentOperationCount to 4. The Queue itself is the one managing the concurrency. and I will have 4 operations runing at the same time? I'm not sure exactly what you're asking, but might it have something to do with the topic covered in the Concurrent Versus Non-Concurrent Operations section here? http://developer.apple.com/documentation/Cocoa/Reference/NSOperation_class/Reference/Reference.html -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSOperation NSOperationQueue
On Wed, Sep 24, 2008 at 8:56 AM, Sandro Noel [EMAIL PROTECTED] wrote: Greetings. I need a clarification about the NSOpration ans NSOperationQueue I read in the documentation that the NSOperation itself is non concurrent. and that i can program it to be, if I override this and that method. and configure the runtime env. I assume that means create my own threads(NSTasks). I am not sure if the last sentence above shows some confusion on thread and task or was just noting either could be used but just in case... NSTasks are processes each of which may have one or more threads. NSThreads are threads each of which has a thread stack, thread context, etc. A concurrent operation is called from the managing thread of the operation queue and it is left up to the operation on how it wants to execute its operation. For example it could do the computation directly when main is called but that would prevent the operation queue from moving on to another operation (likely defeats the purpose of using a queue and run contrary to the intent of returning true to isConcurrent). Or it could startup a thread or task to do the operation or fire off an async request, etc (more inline with the intent of isConcurrent) and return back to the operation queue (allowing it to move onto the next operation). A non-concurrent operation is called by a worker thread that the operation queue manages. This operation will then run in this worker thread and the operation queue can move onto other operations (since the operation queue managing thread isn't blocked). It basically means does the operation manage its own concurrency (isConcurrent = YES) or does the operation queue need to do it for the operation (isConcurrent = NO). If I use NSOperation, override only the main method, I get a non concurrent object to run a particular piece of code. Stack these lovely objects in an operationQueue and set setMaxConcurrentOperationCount to 4. The Queue itself is the one managing the concurrency. and I will have 4 operations runing at the same time? Correct assuming your operations don't state dependencies that prevent concurrency, the system has the ability to execute 4 threads (enough physical or virtual cores, aka hyper threading) and current system pressure doesn't prevent reaching max concurrency. -Shawn ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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 alias programatically
At 18:15 -0500 23/09/08, Ken Thomases wrote: On Sep 23, 2008, at 5:54 PM, Rainer Brockerhoff wrote: That's news to me... I really can't recall right now where the alias file format was officially documented, but in the Classic days it was quite acceptable to create them yourself... From the legacy Inside Macintosh http://developer.apple.com/documentation/mac/Toolbox/Toolbox-459.html: ... From legacy Technical Note TB535: Finder QAa http://developer.apple.com/technotes/tb/tb_535.html: ... Once again, DTS urges that you not create alias files from within an application. Just because the format was documented doesn't mean that Apple supported the creation of alias files by third-party applications. Thanks for setting me straight on that (also to Charles Srstka). I dug out my paper copy of Inside Mac VI from last millenium's stratum in my office, and indeed it confirms what you say. However, it also says storing alias records in files for private use was already generally allowed. Since the format of the alias record itself isn't documented, even today, this indicates that Apple still can introduce new formats (as they have done since then), but on the other hand, for all practical purposes, stored records should work until alias records become completely unsupported. In other words, the Finder may even change its current implementation of alias files, but the old format should still work. In Mac OS X 10.1.x days and up to now, my XRay utility had commands to create alias files in various formats; no problems ever were reported. In the present situation, where the legacy resource file format, etc. is for all intents set in stone, but many things still depend on it (custom icons, icon badges, alias files, and so forth), I would say that, for most purposes, _today_ it's safe to create an alias file on HFS volumes, despite those old warnings. I hasten to add this is my personal, perhaps cynically pragmatic, view. ;-) -- Rainer Brockerhoff [EMAIL PROTECTED] Belo Horizonte, Brazil In the affairs of others even fools are wise In their own business even sages err. Weblog: http://www.brockerhoff.net/bb/viewtopic.php ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: NSOperation NSOperationQueue
Shawn. Very clear, thank you Sandro. On 24-Sep-08, at 12:18 PM, Shawn Erickson wrote: On Wed, Sep 24, 2008 at 8:56 AM, Sandro Noel [EMAIL PROTECTED] wrote: Greetings. I need a clarification about the NSOpration ans NSOperationQueue I read in the documentation that the NSOperation itself is non concurrent. and that i can program it to be, if I override this and that method. and configure the runtime env. I assume that means create my own threads(NSTasks). I am not sure if the last sentence above shows some confusion on thread and task or was just noting either could be used but just in case... NSTasks are processes each of which may have one or more threads. NSThreads are threads each of which has a thread stack, thread context, etc. A concurrent operation is called from the managing thread of the operation queue and it is left up to the operation on how it wants to execute its operation. For example it could do the computation directly when main is called but that would prevent the operation queue from moving on to another operation (likely defeats the purpose of using a queue and run contrary to the intent of returning true to isConcurrent). Or it could startup a thread or task to do the operation or fire off an async request, etc (more inline with the intent of isConcurrent) and return back to the operation queue (allowing it to move onto the next operation). A non-concurrent operation is called by a worker thread that the operation queue manages. This operation will then run in this worker thread and the operation queue can move onto other operations (since the operation queue managing thread isn't blocked). It basically means does the operation manage its own concurrency (isConcurrent = YES) or does the operation queue need to do it for the operation (isConcurrent = NO). If I use NSOperation, override only the main method, I get a non concurrent object to run a particular piece of code. Stack these lovely objects in an operationQueue and set setMaxConcurrentOperationCount to 4. The Queue itself is the one managing the concurrency. and I will have 4 operations runing at the same time? Correct assuming your operations don't state dependencies that prevent concurrency, the system has the ability to execute 4 threads (enough physical or virtual cores, aka hyper threading) and current system pressure doesn't prevent reaching max concurrency. -Shawn ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: Receiving mouseEnter and mouseExit events.
On Tue, Aug 19, 2008 at 23:50, David Alter [EMAIL PROTECTED] wrote: I just realized that NSTrackingArea is 10.5 and up. I need to support 10.4. mouseEntered and mouseExited have been part of NSResponder from 10.0. To receive these events in 10.4 what should I do? Sorry for the very late reply, but you might still be interested in MATrackingArea, which can be found at http://mattgemmell.com/source. It's almost identical in functionality to NSTrackingArea, and supports 10.4+ (which seems to be just be what you need). Regards Mattias ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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]
Handling User Generated Tablet Events
Hi, I am develop an application that must manage tablet event. For exactly I have a wacom tablet, and I read and study all possible documentation that I found. I am able to manage the tablet event, but I could not disable cursor moving from tablet. In other word I want: - receive tablet event (proximity, point tablet event) - disable mouse movement from tablet. I find this doc : http://www.wacomeng.com/devsupport/downloads/mac/macosx/EN0056-NxtGenImpGuideX.pdf that explain how talk with tablet driver and change settings, but I have some trouble like: - I must send and apple event to wacom driver - I want use cocoa.. Thanks. -- | [D]-o Ing. Daniele Basile - [EMAIL PROTECTED] | ||}-o Develer S.r.l., RD dept. | [B]-o http://www.develer.com - http://www.bertos.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]
Just how accurate is timeIntervalSinceReferenceDate ?
Hi, NSDate's timeIntervalSinceReferenceDate returns a double value, that has changing decimal places up to 10e-23, but we all know that is not possible, because that would be even more than attoseconds precision. And the docs just speak of sub-milliseconds precision. So, just how accurate is it? Can it be used as replacement for counting nanoseconds/per instruction as with UpTime() ? André ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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]
unable to break out of runloop because timers are fired and then the loop waits
Hey folks, I have a runloop on a thread that looks like this:
while (! _cancelled) {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
[runloop runMode:NSDefaultRunLoopMode beforeDate:[NSDate
distantFuture]];
[pool release];
}
And I put a timer in the loop that sets _cancelled to true, the
runloop never stops. What's the proper way to do this?
Thanks,
Jason
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Re: Unable to launch about panel for the 2nd time
On Wed, Sep 24, 2008 at 6:17 AM, Arun [EMAIL PROTECTED] wrote: First time i am to see the panel being launched and if i close the panel and try yo launch it one more time, the panel is not vsible. Your question was answered yesterday ... check the archives or your spam filter. -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
setPrimitiveValue:forKey: and to-many relationships
Hi all,
Apple's documentation[1] on -setPrimitiveValue:forKey: is vague in two
ways when using it to manage to-many relationships.
First they state:
If you try to set a to-many relationship to a new NSMutableSet object,
it will (eventually) fail.
Eventually?! What does that even mean? Will it fail later during -
[NSManagedObjectContext save:]? When an managed object is turned into a
fault and then paged back in? When? Can I write a test case to
consistently recreate the failure on-demand?
Second, providing sample code to correctly handle this case, they write:
first get the existing set using primitiveValueForKey: (ensure the
method does not return nil)...
What should I do if/when the method does return nil? assert() it and
fail immediately because that means the entire object graph is corrupted
and saving will lead to data loss? NSAssert() on it as a warning to the
caller but press on (silently doing nothing)?
Right now I'm simply directly assigning my desired NS[Mutable]Set in
that case, like so:
- (void)setChildren:(NSSet*)value_
{
[self willChangeValueForKey:@children];
NSMutableSet *mutableRelationshipSet = [[[self
primitiveValueForKey:@children] mutableCopy] autorelease];
if (mutableRelationshipSet) {
[mutableRelationshipSet setSet:value_];
[self setPrimitiveValue:mutableRelationshipSet forKey:@children];
} else {
[self setPrimitiveValue:value_ forKey:@children];
}
[self didChangeValueForKey:@children];
}
Is that wrong?
Thanks,
[1] http://developer.apple.com/documentation/Cocoa/Reference/
CoreDataFramework/Classes/NSManagedObject_Class/Reference/
NSManagedObject.html#//apple_ref/occ/instm/NSManagedObject/
setPrimitiveValue:forKey:
--
Sean McBride, B. Eng [EMAIL PROTECTED]
Rogue Researchwww.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
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Re: unable to break out of runloop because timers are fired and then the loop waits
On Sep 24, 2008, at 1:15 PM, Jason Bobier wrote:
Hey folks, I have a runloop on a thread that looks like this:
while (! _cancelled) {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
[runloop runMode:NSDefaultRunLoopMode beforeDate:[NSDate
distantFuture]];
[pool release];
}
And I put a timer in the loop that sets _cancelled to true, the
runloop never stops. What's the proper way to do this?
Don't run it until the distant future; that'll cause the call to block
until some time in 400X, by which time you probably won't be using
your current Mac anymore. :) Instead, you should run shorter intervals
(like a second from now), and if you need NSEvents to trigger during
the time, then you should probably use -[NSApplication
nextEventMatchingMask:...] instead with dequeueing. That method also
runs the specified run loop.
Nick Zitzmann
http://www.chronosnet.com/
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Re: Creating alias programatically
On Sep 24, 2008, at 9:19 AM, Michael Ash wrote: On Wed, Sep 24, 2008 at 1:43 AM, Charles Srstka [EMAIL PROTECTED] wrote: [source appendFormat:@set theAlias to make alias at POSIX file \[EMAIL PROTECTED] to POSIX file \[EMAIL PROTECTED]\n, NSTemporaryDirectory(), originalPath]; Please never do anything like this. This will fail horribly if either one of these two paths contains certain perfectly legal characters, such as . It's best to use something like the scripting bridge or objc-appscript. If you must use AppleScript, then you should write the script as a subroutine which takes the paths as parameters, then invoke it using something like the code on this page: Agh, you're right, I hadn't thought about that. :-/ Charles ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: unable to break out of runloop because timers are fired and then the loop waits
Thanks Nick. I'm trying to avoid polling tho (since that is the whole
point of runloops and mach ports).
Jason
On Sep 24, 2008, at 3:38 PM, Nick Zitzmann wrote:
On Sep 24, 2008, at 1:15 PM, Jason Bobier wrote:
Hey folks, I have a runloop on a thread that looks like this:
while (! _cancelled) {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
[runloop runMode:NSDefaultRunLoopMode beforeDate:[NSDate
distantFuture]];
[pool release];
}
And I put a timer in the loop that sets _cancelled to true, the
runloop never stops. What's the proper way to do this?
Don't run it until the distant future; that'll cause the call to
block until some time in 400X, by which time you probably won't be
using your current Mac anymore. :) Instead, you should run shorter
intervals (like a second from now), and if you need NSEvents to
trigger during the time, then you should probably use -
[NSApplication nextEventMatchingMask:...] instead with dequeueing.
That method also runs the specified run loop.
Nick Zitzmann
http://www.chronosnet.com/
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Re: unable to break out of runloop because timers are fired and then the loop waits
On Sep 24, 2008, at 3:35 PM, Jason Bobier wrote: Thanks Nick. I'm trying to avoid polling tho (since that is the whole point of runloops and mach ports). Take a look a message I posted a few days ago that uses a Mach port to wake up the run loop: http://lists.apple.com/archives/Cocoa-dev/2008/Sep/msg01155.html I never got any replies, but it's working well for me. What you'd do is install a DDRunLoopPoker and then call -pokeRunLoop in your timer callback. That'll force runMode:beforeDate: to return. -Dave ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Unable to launch about panel for the 2nd time
On Sep 24, 2008, at 15:16 , I. Savant wrote: On Wed, Sep 24, 2008 at 6:17 AM, Arun [EMAIL PROTECTED] wrote: First time i am to see the panel being launched and if i close the panel and try yo launch it one more time, the panel is not vsible. Your question was answered yesterday ... check the archives or your spam filter. Yeah, how rude :) J 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: unable to break out of runloop because timers are fired and then the loop waits
On Sep 24, 2008, at 15:15 , Jason Bobier wrote:
Hey folks, I have a runloop on a thread that looks like this:
while (! _cancelled) {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
[runloop runMode:NSDefaultRunLoopMode beforeDate:[NSDate
distantFuture]];
[pool release];
}
And I put a timer in the loop that sets _cancelled to true, the
runloop never stops. What's the proper way to do this?
The run loop only returns from this call when one of the following
happens: 1) it has no input sources or timers left; 2) the
beforeDate: date expires; or 3) an input source has been triggered and
processed.
Timers don't count as input sources, they are handled at a different
part of the event loop. Also, even if you haven't added
any timers or input sources to the run loop, many of the high-level
frameworks (like AppKit) do, so you can't be sure that
the call will return just because you haven't put anything.
Your options, then, are to use a shorter date, as was suggested, or to
have an actual input source that gets triggered (the Mach Port Poke),
also
suggested already. I just wanted to let you know why this happens :)
HTH, J
smime.p7s
Description: S/MIME cryptographic signature
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Re: setPrimitiveValue:forKey: and to-many relationships
On Sep 24, 2008, at 12:34, Sean McBride wrote:
First they state:
If you try to set a to-many relationship to a new NSMutableSet
object,
it will (eventually) fail.
Eventually?! What does that even mean? Will it fail later during -
[NSManagedObjectContext save:]? When an managed object is turned
into a
fault and then paged back in? When? Can I write a test case to
consistently recreate the failure on-demand?
Why would you do that? The documentation says you must NOT call
setPrimitiveValue with an arbitrary set, if the property is a to-many
relationship.
Second, providing sample code to correctly handle this case, they
write:
The sample code isn't handling this case. It's showing you how to
avoid this case (how to create a set that you can validly use with
setPrimitiveValue).
first get the existing set using primitiveValueForKey: (ensure the
method does not return nil)...
What should I do if/when the method does return nil? assert() it and
fail immediately because that means the entire object graph is
corrupted
and saving will lead to data loss? NSAssert() on it as a warning to
the
caller but press on (silently doing nothing)?
primitiveValueForKey might fail and return nil; mutableCopy might fail
and return nil; your method might do other things that can fail. Since
there's no error return, there's not a lot you can do. Either log an
error and exit early, or throw an exception.
Right now I'm simply directly assigning my desired NS[Mutable]Set in
that case, like so:
- (void)setChildren:(NSSet*)value_
{
[self willChangeValueForKey:@children];
NSMutableSet *mutableRelationshipSet = [[[self
primitiveValueForKey:@children] mutableCopy] autorelease];
if (mutableRelationshipSet) {
[mutableRelationshipSet setSet:value_];
[self setPrimitiveValue:mutableRelationshipSet
forKey:@children];
} else {
[self setPrimitiveValue:value_ forKey:@children];
}
[self didChangeValueForKey:@children];
}
Is that wrong?
I think so. Your else statement does what the documentation tells
you not to do.
IAC, it's not clear why you need to use setPrimitiveValue: at all. Why
not something like:
- (void)setChildren:(NSSet*)value_
{
[[self mutableSetValueForKey:@children] removeAllObjects];
[[self mutableSetValueForKey:@children] unionSet: value_];
}
or:
@dynamic addChildren;
@dynamic removeChildren;
- (void)setChildren:(NSSet*)value_
{
[self removeChildren: [NSSet setWithSet: self.children]];
[self addChildren: value_];
}
both of which have the advantage of maintaining the inverse
relationship properly, which your original (according to the
documentation) does not.
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Re: unable to break out of runloop because timers are fired and then the loop waits
This works fine:
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
mTimer = [[NSTimer alloc] initWithFireDate: ... interval: ...
target:self selector:@selector(...:) userInfo:nil repeats:YES];
[[NSRunLoop currentRunLoop] addTimer:mAudioIdleTimer
forMode:NSDefaultRunLoopMode];
[[NSRunLoop currentRunLoop] addTimer:mAudioIdleTimer
forMode:NSModalPanelRunLoopMode];
[[NSRunLoop currentRunLoop] addTimer:mAudioIdleTimer
forMode:NSEventTrackingRunLoopMode];
while (...) [[NSRunLoop currentRunLoop] runUntilDate:[NSDate
dateWithTimeIntervalSinceNow:1.]];
[pool release];
On 24.09.2008, at 23:15, Jason Bobier wrote:
Hey folks, I have a runloop on a thread that looks like this:
while (! _cancelled) {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
[runloop runMode:NSDefaultRunLoopMode beforeDate:[NSDate
distantFuture]];
[pool release];
}
And I put a timer in the loop that sets _cancelled to true, the
runloop never stops. What's the proper way to do this?
Thanks,
Jason
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Merging 3 JPG images into one panoramic image
I'm extremely new to Cocoa - I'm going through Aaron Hillegass's book now, actually, so I thought I would come here to ask for some hints. I have thousands of worship background images that are single 1024x768 JPG images and they come in sets of 3 to form triptychs when placed side by side. I am submitting these images to sell through a stock photography distributor, and we want to distribute them as 3072x768 single images. Instead of merging the 3 images into 1 using photoshop (I did this already with 133 triptychs and it was a pain), I figured I could take advantage of Cocoa and the CoreImage technology. So my question is this: How easy would this task be for a total n00b at Cocoa and Objective-C programming? If y'all think it is a simple task, could someone provide me with perhaps some high-level guidance to get me started in the right direction? Also, would this potentially noticeably damage my images due to JPG artifacts? Thanks! Paul Brown ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: unable to break out of runloop because timers are fired andthen the loop waits
He said in another message that he didn't want to poll... In that case the only
option is to ensure an input source fires or to use a CFRunLoop instead.
Sent via BlackBerry from T-Mobile
-Original Message-
From: Muraviev Dmitry [EMAIL PROTECTED]
Date: Wed, 24 Sep 2008 23:30:45
To: Jason Bobier[EMAIL PROTECTED]
Cc: Cocoa Developerscocoa-dev@lists.apple.com
Subject: Re: unable to break out of runloop because timers are fired and
then the loop waits
This works fine:
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
mTimer = [[NSTimer alloc] initWithFireDate: ... interval: ...
target:self selector:@selector(...:) userInfo:nil repeats:YES];
[[NSRunLoop currentRunLoop] addTimer:mAudioIdleTimer
forMode:NSDefaultRunLoopMode];
[[NSRunLoop currentRunLoop] addTimer:mAudioIdleTimer
forMode:NSModalPanelRunLoopMode];
[[NSRunLoop currentRunLoop] addTimer:mAudioIdleTimer
forMode:NSEventTrackingRunLoopMode];
while (...) [[NSRunLoop currentRunLoop] runUntilDate:[NSDate
dateWithTimeIntervalSinceNow:1.]];
[pool release];
On 24.09.2008, at 23:15, Jason Bobier wrote:
Hey folks, I have a runloop on a thread that looks like this:
while (! _cancelled) {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
[runloop runMode:NSDefaultRunLoopMode beforeDate:[NSDate
distantFuture]];
[pool release];
}
And I put a timer in the loop that sets _cancelled to true, the
runloop never stops. What's the proper way to do this?
Thanks,
Jason
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Re: setPrimitiveValue:forKey: and to-many relationships
On 9/24/08 3:56 PM, Quincey Morris said:
Is that wrong?
I think so. Your else statement does what the documentation tells
you not to do.
Indeed.
IAC, it's not clear why you need to use setPrimitiveValue: at all.
Thank you for your fresh perspective. That did not occur to me, no
doubt due to looking at this for too long. :)
Why
not something like:
- (void)setChildren:(NSSet*)value_
{
[[self mutableSetValueForKey:@children] removeAllObjects];
[[self mutableSetValueForKey:@children] unionSet: value_];
}
or:
@dynamic addChildren;
@dynamic removeChildren;
- (void)setChildren:(NSSet*)value_
{
[self removeChildren: [NSSet setWithSet: self.children]];
[self addChildren: value_];
}
both of which have the advantage of maintaining the inverse
relationship properly, which your original (according to the
documentation) does not.
Those look good. After looking at Custom To-Many Relationship Accessor
Methods yet again, another implementation comes to mind, which fits
nicely with Apple's examples:
- (void)setChildren:(NSSet *)value_
{
[self willChangeValueForKey:@children
withSetMutation:NSKeyValueSetSetMutation
usingObjects:value_];
[[self primitiveChildren] setSet:value];
[self didChangeValueForKey:@children
withSetMutation:NSKeyValueSetSetMutation
usingObjects:value_];
}
The reason I bring this up, is because I noticed that mogenerator 1.10
is generating code that incorrectly uses setPrimitiveValue:forKey: as
originally described.
Thanks Quincey!
--
Sean McBride, B. Eng [EMAIL PROTECTED]
Rogue Researchwww.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
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Re: setPrimitiveValue:forKey: and to-many relationships
On Sep 24, 2008, at 16:34, Sean McBride wrote:
- (void)setChildren:(NSSet *)value_
{
[self willChangeValueForKey:@children
withSetMutation:NSKeyValueSetSetMutation
usingObjects:value_];
[[self primitiveChildren] setSet:value];
[self didChangeValueForKey:@children
withSetMutation:NSKeyValueSetSetMutation
usingObjects:value_];
}
This is more direct than either of my suggestions. However, my guess
is that [[self primitiveChildren] setSet:value] does not maintain the
inverse relationship, if you have one.
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Re: Merging 3 JPG images into one panoramic image
On Sep 24, 2008, at 5:25 PM, Paul Brown wrote: So my question is this: How easy would this task be for a total n00b at Cocoa and Objective-C programming? Easy, and you don't need CoreImage for that. If y'all think it is a simple task, could someone provide me with perhaps some high-level guidance to get me started in the right direction? Create a new NSImage with three times the width of each image, lock focus on the image, composite each sub-image into the appropriate point in the final image, and unlock focus. Also, would this potentially noticeably damage my images due to JPG artifacts? Only if the final image is being saved as a JPEG or in some other lossy format. 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: setPrimitiveValue:forKey: and to-many relationships
On 9/24/08 5:01 PM, Quincey Morris said:
- (void)setChildren:(NSSet *)value_
{
[self willChangeValueForKey:@children
withSetMutation:NSKeyValueSetSetMutation
usingObjects:value_];
[[self primitiveChildren] setSet:value];
[self didChangeValueForKey:@children
withSetMutation:NSKeyValueSetSetMutation
usingObjects:value_];
}
This is more direct than either of my suggestions. However, my guess
is that [[self primitiveChildren] setSet:value] does not maintain the
inverse relationship, if you have one.
You're suspicion may be correct, but considering how this doc implements
addEmployee: I'm not so sure:
http://developer.apple.com/documentation/Cocoa/Conceptual/CoreData/
Articles/cdAccessorMethods.html#//apple_ref/doc/uid/TP40002154-SW6
Surely their example would not screw up inverse relationships, since
they also recommend one always have inverses...
--
Sean McBride, B. Eng [EMAIL PROTECTED]
Rogue Researchwww.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
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Re: setPrimitiveValue:forKey: and to-many relationships
On Sep 24, 2008, at 17:30, Sean McBride wrote: Surely their example would not screw up inverse relationships, since they also recommend one always have inverses... I guess [self primitiveChildren] could be some kind of proxy instead of a plain set, which might explain it. That would also explain why 'setPrimitiveChildren: aPlainSet' isn't allowed. Let us know the answer if you find it during your testing. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: setPrimitiveValue:forKey: and to-many relationships
Sean, Jon,
The documentation is correct for 10.4. On 10.5, things are more
forgiving, and you can call -setPrimitiveValue:forKey: with a public
set. We won't use that object, but we will use its contents. It does
no inverse maintenance, so unless it's part of the public setter for
the relationship, it's a pretty awful idea.
If you try to set a to-many relationship to a new NSMutableSet
object,
it will (eventually) fail.
Eventually?! What does that even mean? Will it fail later during -
[NSManagedObjectContext save:]? When an managed object is turned
into a
fault and then paged back in? When? Can I write a test case to
consistently recreate the failure on-demand?
The to-many relationship object is itself a private subclass of NSSet,
so eventually will occur when someone gets back the improperly
assigned set, and tries to use it. With -mutableSetValueForKey: or
any number of other operations. eventually == implementation
dependent behavior == answer is still no I suppose you could write a
test case on Tiger that failed on-demand.
On Leopard, it's important to realize that you won't get back the
object you assigned if you try to do this. In general, the Xcode
template generation in the Design menu is the recommended form.
Second, providing sample code to correctly handle this case, they
write:
first get the existing set using primitiveValueForKey: (ensure the
method does not return nil)...
What should I do if/when the method does return nil? assert() it and
fail immediately because that means the entire object graph is
corrupted
and saving will lead to data loss? NSAssert() on it as a warning to
the
caller but press on (silently doing nothing)?
It should never return nil, unless you do something very wrong, like
try to set values in the faulting callbacks (will or
didTurnIntoFault). Within the scope of turning the object into a
fault, you should send such messages to nil (e.g. /dev/null )
Right now I'm simply directly assigning my desired NS[Mutable]Set in
that case, like so:
- (void)setChildren:(NSSet*)value_
{
[self willChangeValueForKey:@children];
NSMutableSet *mutableRelationshipSet = [[[self
primitiveValueForKey:@children] mutableCopy] autorelease];
if (mutableRelationshipSet) {
[mutableRelationshipSet setSet:value_];
[self setPrimitiveValue:mutableRelationshipSet
forKey:@children];
} else {
[self setPrimitiveValue:value_ forKey:@children];
}
[self didChangeValueForKey:@children];
}
Is that wrong?
The recommended form of implementing a custom accessor with a Core
Data property can be created in Xcode using the Design menu - Data
Model - Copy ObjC 2.0 Method Implementation when you have that
property(ies) selected in the model view.
You are strongly encouraged to use the built in accessor methods, and
the templates provided as much as possible. For example, this setter
will cause a lot of KVO notifications to get generated. It is very
inefficient compared to -addChildren, -removeChildren, and -
addChildrenObject, and -removeChildrenObject. Examining the template
generation for those methods should give you an idea why.
In this case, you're not doing anything custom at all, and should just
use Core Data's default -setChildren method, which you will get with a
dynamic property declaration. Actually, you get it anyway, the
property declaration just tells the compiler not to warn.
Quincey's suggestions are apt.
As repeated in the Core Data documentation, the primitive accessor
methods are intended exclusively as building blocks for the creation
of custom public accessors, and should not be used for other
purposes. The relationship maintenance (inverses) may be maintained
via KVO, so directly using the primitive setter on a relationship
without issuing the correct KVO notifications is dangerous and wrong.
- Ben
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NSDate/Tokens for Calendar Format String Question
I have a problem. Basically, I want to take the time, and set the text field to that time, only the time with 12 Hours. How do you do this? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: NSDate/Tokens for Calendar Format String Question
Eric Lee ([EMAIL PROTECTED]) on 2008-9-24 10:21 PM said: I have a problem. Basically, I want to take the time, and set the text field to that time, only the time with 12 Hours. How do you do this? Have you read about NSDateFormatter? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: NSDate/Tokens for Calendar Format String Question
Wow...never saw that...can't believe it Thanks! I'll look into it On Sep 24, 2008, at 10:13 PM, Sean McBride wrote: Eric Lee ([EMAIL PROTECTED]) on 2008-9-24 10:21 PM said: I have a problem. Basically, I want to take the time, and set the text field to that time, only the time with 12 Hours. How do you do this? Have you read about NSDateFormatter? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post 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: What does @loader_path refer to when loading ibplugins from a linked-in framework?
On Wed, Sep 24, 2008 at 11:15 AM, Dalzhim Dalzhim [EMAIL PROTECTED] wrote: Greetings, I have followed the Interface Builder Plug-in Programmation Guide in order to make my first ibplugin and there is one problem I haven't been able to solve yet. It is stated that when opening a nib file, interface builder looks at every linked-in framework from the associated xcode project and automatically loads all the ibplugins located in the resources folder of these frameworks. And this is the only behaviour which I can't reproduce. I have already searched a lot in order to make this work and up to now, I am using @loader_path/../Frameworks as the installation directory for my framework. I have added a run script build phase which creates a symbolic link in the Contents folder of my ibplugin file so that it points to the location where my Framework resides (6 folders higher in the folder hierarchy: ../../../../../..) and this way I have been able to load up my plugin both in my application and through the plugins tab in Interface Builder's preferences. Although, if I start Interface Builder without having the plugin already installed and that I open up a nib from a xcode project which links with my framework, it fails to load the nib file saying that the required plug-ins aren't installed. I have tried running Interface Builder from the command line in order to see any error messages but nothing is being printed to the console unlike what happens if I try to manually install the plug-in. In fact I used these console errors to figure out how to create my symbolic link. Now that I've presented my problem, here is my question. Is it possible that @loader_path is different when Interface Builder loads up ibplugins from linked-in frameworks than when one manually adds a plugin through the preferences window? If that is the case, maybe another well placed symbolic link could finally allow my plugin to work in every use case I can imagine. I would have thought that @loader_path would be the same thing each time, namely the path of the plugin binary (minus the last path component, of course). I'm not sure exactly what your problem might be, but if you type 'man dyld' you'll find a bunch of debugging environment variables you can set which might help you track it down. 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]
