Re: CoreData, SyncServices NSURL ...
One of the reasons I use a transformer is so that I can bind the resulting string to a column in a tableview. How would I go about doing this if I didn't use a transformer, as you suggest ? Also, I think I may have got somewhere with this. I was under the impression that it was the stored managed object that was pushed to sync services, but it turns out that it's not. It's a dictionary containing keys and values/objects that represent that managed object. So if I implement the following method in my delegate persistentStoreCoordinator:willPushRecord:forManagedObject:inSyncSession: It gives me access to that dictionary before it's pushed, which means that I should be able to remove the URL string that's currently being passed and replace it with an instance of NSURL. All this is just theory though as I've not yet had time to test it out. -Mic 2009/3/6 Kyle Sluder kyle.slu...@gmail.com: Do you even need to write your own transformer? If you are targeting Leopard and later, you could just use a transformable attribute and leave it all up to the default NSKeyedArchiver transformer. --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 arch...@mail-archive.com
Extract components from PDF page
Hello guys Is possible to get the components of a PDFPage? I should to take images and text from the page and put each of these inside a file. Any suggestion? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] NSObject's poseAsClass - Replacement?
On 5 Mar 2009, at 21:00, Eric Gorr wrote: I have a need to use poseAsClass, but I see that it has been deprecated in 10.5 and won't be available for 64-bit applications. and then you said: I am working on a Carbon - Cocoa conversion. In the carbon part, the cursor is being set to a 64x64 cursor constantly - via NSCursor set. The problem comes when I move the cursor over a cocoa view which I believe, by default, changing the cursor to what it wants - which I believe is a 32x32 cursor. Well, if you are worried about 64-bit then your Carbon UI code won't work anyway so you'd have to be all Cocoa, at which point the normal NSCursor handling should suffice. The fact that it is deprecated in 10.5 is just a heads-up to not use it if possible, but if you still do need to use it in your Carbon-Cocoa hybrid, then use it. I imagine that 32-built Carbon UI will disappear from the OS before 32-bit Cocoa support. Matt ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSToolbar EXC_BAD_ACCESS after configuration (leopard)
Hello everybody, I have a problem with NSToolbar in leopard. May be I am using it in a wrong way. In order to mutually enable/disable two toolbar items, I created a boolean variable in the delegate class and bound the toolbar items to it using Enabled entry in the Interface Builder Inspector. The two toolbar items are then bound to selectors where the state of the boolean variable is modified. In this way when one item is enabled the other one is disabled. Something similar to Play and Pause in a media player. The toolbar items are enabled/disabled according with the variable value and their behavior is correct. But after a toolbar customization (just display the customization panel is enough) any operation on toolbar that involves a modification of the boolean variable produces a EXC_BAD_ACCESS. Any idea about this? I created a simple test that can be downloaded from: http://www.savefile.com/files/2029001 (this file will be deleted in 30 days). regards john -- John Boydon ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] NSObject's poseAsClass - Replacement?
On Mar 6, 2009, at 12:03 AM, Michael Ash wrote: On Thu, Mar 5, 2009 at 3:00 PM, Eric Gorr mail...@ericgorr.net wrote: On Mar 5, 2009, at 2:47 PM, Benjamin Stiglitz wrote: I have a need to use poseAsClass, but I see that it has been deprecated in 10.5 and won't be available for 64-bit applications. So, is there a replacement? WAYTTD: What are you trying to do? Maybe you don’t need to pose. Well, sadly, I am pretty sure I do...at least for now. Although, this bug is not quite confirmed yet, but I suspect I know what the problem is. I am working on a Carbon - Cocoa conversion. In the carbon part, the cursor is being set to a 64x64 cursor constantly - via NSCursor set. The problem comes when I move the cursor over a cocoa view which I believe, by default, changing the cursor to what it wants - which I believe is a 32x32 cursor. So, in the constantly fighting over what the cursor should be, there is some weird cursor behavior...it flickers - moves quickly to a nearby location and then back again. I figure I could write my own NSCursor subclass, pose it as the normal NSCursor class and make sure that it is always trying to set cursor in the same way in every situation. Yes, I know, this isn't a good situation any way you slice it...but I need a quick fix and poseAsClass: seems to be the best option - assuming the bug is what I think it is. Sounds to me like what you actually need is for your views to stop fighting over the cursor. At most, a subclass of whatever Cocoa view is screwing with your cursor might be called for. Posing as NSCursor for this is like swatting a fly with a grenade. Ultimately, yes. At the moment, it may actually be possible...still looking into it. But, I am still curious what alternatives there are to poseAsClass: ... ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [Q] NSObject's poseAsClass - Replacement?
On Mar 6, 2009, at 2:05 AM, Quincey Morris wrote: On Mar 5, 2009, at 21:17, John C. Randolph wrote: On Mar 5, 2009, at 12:00 PM, Eric Gorr wrote: On Mar 5, 2009, at 2:47 PM, Benjamin Stiglitz wrote: Although, this bug is not quite confirmed yet, but I suspect I know what the problem is. I am working on a Carbon - Cocoa conversion. In the carbon part, the cursor is being set to a 64x64 cursor constantly - via NSCursor set. The problem comes when I move the cursor over a cocoa view which I believe, by default, changing the cursor to what it wants - which I believe is a 32x32 cursor. So, in the constantly fighting over what the cursor should be, there is some weird cursor behavior...it flickers - moves quickly to a nearby location and then back again. That's a band-aid, not a solution. Figure out why the carbon code is constantly trying to change the cursor, and fix it. Or, go back one more step and try to figure out why it flickers. It flickers because of the switch between using a standard NSCursor and a cursor based on a 64x64 NSImage. I believe this is a known bug or at least behavior that has been seen before by others. In any case, it is fairly easy to reproduce and I do plan to write a simple test app and submit a bug report. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to create a modal dialog that blocks on start-up?
On Mar 6, 2009, at 12:01 AM, Graham Cox wrote: On 06/03/2009, at 3:50 PM, Graham Cox wrote: Implement -applicationShouldOpenUntitledFile: in your app delegate to return a flag variable. Make sure that flag starts out as NO until your EULA is dismissed. --Kyle Sluder OK. Then after closing the dialog the app doesn't open an untitled window. Actually the problem is more complicated than this. The app might have been launched with a file or files, or just by double-clicking. So if the EULA needs to be displayed this should just defer opening the required documents. By stopping the untitled or other files from opening, they never do. The apple events that supply the launch files or otherwise need to be captured (for later resending) or deferred, a the moment they are either discarded or processed, neither of which is appropriate. This is WAY too hard. NSApplication should either provide a delegate hook for the purpose of displaying a modal window at startup or else detect that a modal window was put up during launch and defer the launch events until later. I need a workaround, and fast - I've got to get this in before the end of the weekend. I believe there is a technique where by your write a separate application which does nothing but show your dialog and then launches your real application. Of course, you would have to find a way to forward document open AppleEvents and perhaps other things, but it should work. Unfortunately, I don't have the link to this kind of technique in front of me at the moment... ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to search for mop3 files, retrieve those file and play these file into apps
Problem is solved now its giving all the mp3 files which are stored in my machine. But another problem is also there. Like, i have stored my favorites songs on desktop and then i transferred these songs to iTunes, so all these songs are also available on iTunes music, So when i search then it gives me same songs twiceThen i thought that i will separate based on songs name. But when i downloaded songs that time the name of song is 4onetwothree.mp3 means strating from moview name, but when i moved to iTunes it has stored name based on orignal name, so name also differenet, so i cant check that this is same or not? is there any solution for that? On Fri, Mar 6, 2009 at 11:11 AM, haresh vavdiya vavdiyahar...@gmail.comwrote: I tried SpotLight examples. Its working but the problem is that it search mp3 file in /user/emp/Music directorynot for all directoriesactually i stored my songs oon Desktop/Songs/*.mp3but it doesn't search for that..what should i do for full search. On Fri, Mar 6, 2009 at 10:48 AM, Kyle Sluder kyle.slu...@gmail.comwrote: On Thu, Mar 5, 2009 at 4:41 AM, haresh vavdiya vavdiyahar...@gmail.com wrote: So i have to search for .mp3 files in all folders and then display into table. Can anyone tell me that how can i search, retrieve .mp3 file and play this particular file into my apps. We have this amazing technology called Spotlight, have you thought of using it? --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 arch...@mail-archive.com
Re: NSStatusItem when clicked shows custom view
Matt Gemmell has MAAttachedWindow, a sub class of NSWindow listed here: http://mattgemmell.com/source it comes with a sample project that shows it working with an NSStatusItem. See if that will suit your needs +Clint On Thu, Mar 5, 2009 at 1:03 PM, Chris Purcell haroldthehun...@mac.comwrote: I'm looking to do something similar to this app: http://transmissionapps.com/ (Logbook). I've seen that done in a handful of apps, a custom window/view invoked when the NSStatusItem is clicked. My two quesitons: 1) How is that window created. Is it a custom NSWindow or a regular NSWindow with a custom view? 2) How can I position the window so that it is directly below the NSStatusItem? Or am I going about this the wrong way. Thanks! --Chris ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cts3e1%40gmail.com This email sent to cts...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: A question about NSPredicateEditor and NSPredicateEditorRowTemplate
[following up to a Jan 08 thread]
is it possible to modify the width of the NSTextField representing
a Number in a NSPredicateEditorRowTemplate ?
Yes, but not yet in Interface Builder. To do so programatically, get
the row template, get the text field as the last member of the row
template's templateViews array, and set its frame to the size you want.
I hope that helps,
-Peter
Peter, I tried to do as you suggest - set the frames to what I want,
but it has no effect. Any other suggestions?
David
PS: code
-applicationDidFinishLaunching
...
int i = 0;
NSArray *temps = [predicateEditor rowTemplates];
for(NSPredicateEditorRowTemplate *temp in temps) {
NSArray *views = [temp templateViews];
int j = 0;
int x = 0;
for(NSControl *view in views) { // I know, view is not a good
name for this :-)
NSLog(@temp=%@ view=%@ frame: %@, temp, view,
NSStringFromRect([view frame])); // verify all is connected
if(i==0) continue; // don't touch first one
NSRect r = [view frame];
r.origin.x = 0; // just for testing impact...
[view setFrame:r];
NSLog(@ mod frame=%@, NSStringFromRect([view frame]));
// yes, it took
++j;
}
++i;
}
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Newbie query re notifications
I have been using notifications in a simple document app that processes data
from a datafile. This app has a document window and an appDelegate, both of
which appear in IB with the proper connections. The document can
successfully send notifications to the appDelegate and the latter can send
notifications to itself. All of this is OK.
Today, I realized that I should have a separate class for some of the data
processing. This separate class, SatManager, has no GUI elements and does
not appear in IB in any way. Its implementation includes
- (id)init
{
self = [super init];
if (self) {
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
[nc addObserver:self selector:@selector(getGPS) name:@fetchGPS
object:nil];
}
return self;
}
The appDelegate includes
- (void)initCase
{
...
[[NSNotificationQueue defaultQueue] enqueueNotification: [NSNotification
notificationWithName:@fetchGPS
object:nil] postingStyle:NSPostWhenIdle];
}
This enqueueing worked fine when getGPS() was a method of appDelegate but
not now when getGPS() is a method of SatManager. Now, the notification does
not reach getGPS() even though the SatManager addObserver() call gave no
errors.
Am I oversimplifying something? Do I need to do more to pass notifications
around -- like add something in IB, perhaps?
TIA.
--
Mike McLaughlin
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Supported platforms?
I will try to tread carefully around NDA boundaries with this remark. Perhaps someone in authority can e-mail me privately with the information I need -- or at least make sure that future announcements to qualified NDA signatories like me are revised to contain the information. Here goes: The seed notes for a certain rumored system software upgrade that we're all interested in do not specify -- and they never have specified, in my memory -- the minimum supported platform, namely, PPC vs. Intel. I don't yet own an Intel machine. So the only way I can find out if it will be worth my while to download the 6 Gig file, burn it to a dual-layer DVD and install it is, well, to download the 6 Gig file, burn it to a dual-layer DVD and install it. The answer to my question will be conveyed by the presence or absence of an error message after I've done all that. That isn't a very user-friendly way to convey the information I need. Since the seed notes are available via a tiny RTF file, it would be helpful to people like me and harmless to Apple if the seed notes were to contain this information. (I am aware that the rumor sites like to treat this question as a hot issue. If Apple sees this as a problem, the seed note could deal with the rumor sites by including a disclaimer warning that the ability or inability to install the seed release on a PPC machine implies nothing about the final release.) -- Bill Cheeseman b...@cheeseman.name ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
interpretKeyEvents not handling HOME and END keys?
I found this old thread: http://lists.apple.com/archives/cocoa-dev/2004/Sep/msg00161.html which discusses the same problem I am currently experiencing. As near as I can tell, interpretKeyEvents: does not call any method to handle these key presses. Has something changed that I am unaware of or should I just go off and file what I am sure is a duplicate bug report? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Doing NSStringDrawingTruncatesLastVisibleLine with NSLayoutManger
On Mar 5, 2009, at 9:32 AM, Eric Gorr wrote:
On Mar 4, 2009, at 4:57 PM, Eric Gorr wrote:
I am drawing a string with a NSLayoutManager by doing:
[layoutManager drawGlyphsForGlyphRange:glyphRange
atPoint:NSMakePoint( [self bounds].origin.x,[self
bounds].origin.y )];
What I would like is if the string I am drawing goes beyond the
last visible line, is for the string to draw a truncated form of
itself with an elipses at the last visible part of the string.
As near as I can tell, this is what the NSString drawing option
NSStringDrawingTruncatesLastVisibleLine will do.
The paragraph style NSLineBreakByTruncatingTail comes close, but I
have a single string that can be drawn over multiple lines and
still be visible. The NSLineBreakByTruncatingTail style restrict my
drawing to just a single line which isn't enough.
Anyone tried to emulate NSStringDrawingTruncatesLastVisibleLine
with NSLayoutManager drawing?
Is there any sample code out there demonstrating the technique?
Here is the start of something that I think will work, but I have a
strange problem...
NSRange glyphRange = [layoutManager
glyphRangeForTextContainer:container];
NSUInteger index = 0;
NSUInteger x;
NSUInteger numberOfGlyphs = glyphRange.length;
NSMutableArray *visibleLines = [NSMutableArray array];
NSRect bounds = [self bounds];
if ( numberOfGlyphs 0 ) {
//
// Find visible lines
//
for ( x = 0, index = 0; index numberOfGlyphs; x++) {
NSRange lineRange;
NSRect lineRect= [layoutManager
lineFragmentRectForGlyphAtIndex:index
effectiveRange:lineRange];
if ( NSContainsRect( bounds, lineRect ) ) {
[visibleLines addObject:[NSDictionary
dictionaryWithObjectsAndKeys:[NSValue valueWithRange:lineRange],
@range,
[NSValue
valueWithRect:lineRect], @rect,
nil
]];
}
index = NSMaxRange(lineRange);
}
//
// draw visible lines
//
if ( [visibleLines count] 0 ) {
NSDictionary *visibleLine;
for ( visibleLine in visibleLines ) {
NSRange visibleRange= [[visibleLine
objectForKey:@range] rangeValue];
NSRect visibleRect = [[visibleLine
objectForKey:@rect] rectValue];
NSLog( @%@, NSStringFromRect( visibleRect ) );
[layoutManager drawGlyphsForGlyphRange:visibleRange
atPoint:visibleRect.origin];
}
}
}
My text container is of unlimited height, so glyphRange will hold
the range for all of the glyphs. I cycle through all of the lines of
text remembering those lines which are visible. I then cycle through
the visible lines to draw them.
My thought was that since I can obtain the range of characters for
the glyphs on the last visible line
(characterRangeForGlyphRange:actualGlyphRange:), I could set the
NSLineBreakByTruncatingTail NSParagraphStyle for the the characters
which appear on the last visible line to the end of the string. This
should cause the ellipsis to appear for the last visible line of text.
However, the strange problem is that while I can see the
visibleRect.origin's are all correct, the drawing appears to be
double spaced which one can see at:
http://ericgorr.net/cocoadev/outlinetable/doublespace.png
The visibleRect.origin's are:
2009-03-05 09:24:50.723 OutlineCollection-VB[29692:813] {{0, 0},
{70, 12}}
2009-03-05 09:24:50.731 OutlineCollection-VB[29692:813] {{0, 12},
{70, 12}}
2009-03-05 09:24:50.732 OutlineCollection-VB[29692:813] {{0, 24},
{70, 12}}
2009-03-05 09:24:50.733 OutlineCollection-VB[29692:813] {{0, 36},
{70, 12}}
2009-03-05 09:24:50.738 OutlineCollection-VB[29692:813] {{0, 48},
{70, 12}}
But, the characters which should be drawn at {{0, 12}, {70, 12}} are
being drawn at {{0, 24}, {70, 12}} and I don't know why. I be
interested in learning what I am doing wrong...anyone have any ideas?
My other thought is to use
characterRangeForGlyphRange:actualGlyphRange: and
glyphRangeForCharacterRange:actualCharacterRange: to figure out
where I should clip the string and manually insert an ellipsis. If I
do this, I can just use drawGlyphsForGlyphRange:atPoint: on the
entire string.
This ended up being the solution...
I make a duplicate of the string I am about to draw, remove characters
from it and insert an ellipsis at the end of the string until the
string fits into a container which is the same size as the view I am
drawing into.
I am still curious why drawing the string line by line wasn't working
as expected. Is it is bug?
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Re: How to search for mop3 files, retrieve those file and play these file into apps
On Fri, Mar 6, 2009 at 9:21 AM, haresh vavdiya vavdiyahar...@gmail.com wrote: Problem is solved now its giving all the mp3 files which are stored in my machine. But another problem is also there. Like, i have stored my favorites songs on desktop and then i transferred these songs to iTunes, so all these songs are also available on iTunes music, So when i search then it gives me same songs twiceThen i thought that i will separate based on songs name. But when i downloaded songs that time the name of song is 4onetwothree.mp3 means strating from moview name, but when i moved to iTunes it has stored name based on orignal name, so name also differenet, so i cant check that this is same or not? is there any solution for that? 1) Figure out what definition of same you want to use. 2) Write code that implements a check for your definition of same. 3) Place that code in your app to filter out files that match your definition of same. 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 arch...@mail-archive.com
Re: Newbie query re notifications
On Fri, Mar 6, 2009 at 11:18 AM, McLaughlin, Michael P. mp...@mitre.org wrote: Today, I realized that I should have a separate class for some of the data processing. This separate class, SatManager, has no GUI elements and does not appear in IB in any way. Its implementation includes Classes whose names end in Manager are often signs of bad architecture. Be careful how you approach this factorization. This enqueueing worked fine when getGPS() was a method of appDelegate but not now when getGPS() is a method of SatManager. Now, the notification does not reach getGPS() even though the SatManager addObserver() call gave no errors. From your use of parentheses, it looks like you're more familiar with Java or C# or other such languages. In Objective-C, you can send any message you want to any object you want. I could send an instance of your SatManager class a method called -jumpOffABridge if I wanted to. Are you sure you've defined -[SatManager getGPS]? Check the run console for messages about unrecognized selectors. --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 arch...@mail-archive.com
Re: EXC_BAD_ACCESS in _class_changeInfo
After some rather indepth testing, I found out that I hadn't declared the static arrays correctly (sigh...). Fixing the declarations fixed the crashing problem, but led to other ones (unrelated, I think). I was eventually able to fix it. Dave On Mar 3, 2009, at 9:04 AM, Greg Parker wrote: Most likely, you've sent a message to an invalid object, or to a valid object that was mangled by a memory error elsewhere. Usually that will crash inside objc_msgSend() itself, but if your bogus object happens to include dereferenceable pointers in the right places then the Objective-C runtime will happily traverse the object and isa and method cache and class info and finally fall over somewhere like the +initialize machinery as seen here. Debug it as if it had crashed in objc_msgSend() itself. Make sure the memory management of the receiver is good, and if it is then look for other memory errors that might have clobbered it. NSZombie and Guard Malloc are probably your new best friends. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSStatusItem when clicked shows custom view
Thanks Clint and Ben, MAAttachedWindow is exactly what I needed! --Chris On Mar 6, 2009, at 6:21 AM, Clint Shryock wrote: Matt Gemmell has MAAttachedWindow, a sub class of NSWindow listed here: http://mattgemmell.com/source it comes with a sample project that shows it working with an NSStatusItem. See if that will suit your needs +Clint On Thu, Mar 5, 2009 at 1:03 PM, Chris Purcell haroldthehun...@mac.com wrote: I'm looking to do something similar to this app: http://transmissionapps.com/ (Logbook). I've seen that done in a handful of apps, a custom window/view invoked when the NSStatusItem is clicked. My two quesitons: 1) How is that window created. Is it a custom NSWindow or a regular NSWindow with a custom view? 2) How can I position the window so that it is directly below the NSStatusItem? Or am I going about this the wrong way. Thanks! --Chris ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cts3e1%40gmail.com This email sent to cts...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Determine colorlist/-name after NSColorPanel
Hi! I think of redesigning the way colors can be selected in one of my apps: Currently I use NSPopupButtons an entry for every color and I'd like to move to NSColorWalls / NSColorPanel with predefined lists. These lists should represent color palettes, here threads of different vendors or different materials. Is there any way to determine if a selected color was picked from a list? If so, can I identify the list and the color's key (or index) within this list? For the user e. g. Red from list A is not the same as Red from list B, so I need this information ... Today I tested a bit with catalogNameComponent and colorNameComponent, but always received an exception. I tried to convert the selected color into NSNamedColorSpace, but didn't get it work. Has anybody got an example or a hint? Any help is appreciated, Mattes ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Newbie query re notifications -- SOLVED
Error was of the typo variety. Too embarrassing to describe further :-( -- Mike McLaughlin ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to create a modal dialog that blocks on start-up?
On 3/6/09 4:01 PM, Graham Cox said: Actually the problem is more complicated than this. The app might have been launched with a file or files, or just by double-clicking. So if the EULA needs to be displayed this should just defer opening the required documents. By stopping the untitled or other files from opening, they never do. The apple events that supply the launch files or otherwise need to be captured (for later resending) or deferred, a the moment they are either discarded or processed, neither of which is appropriate. This is WAY too hard. I actually used a DTS incident on this very issue. As you say, it is hard to get exactly right (if you want finesse). In the end, I got about 90% of the way to perfect. I ended up doing the following: - subclassing NSDocumentController - giving it 2 modes: normal and queuing - in normal mode it works like super - in queuing mode, I queue any kAEPrintDocuments and kAEOpenDocuments that I receive - I set it to queue mode in applicationWillFinishLaunching (which is before any kAEPrintDocuments/kAEOpenDocuments arrive) - in applicationDidFinishLaunching I show my splash screen - at this point the user may try to open or print documents, but I don't want them to appear, but nor do I want them to be lost - when OK is clicked in the splash screen, I end queuing mode and process items in the queue - if there are no items in the queue I call [self openUntitledDocumentAndDisplay:error:] - if there are items in the queue I call [super openDocumentWithContentsOfURL:display:error:] - also I implement applicationShouldOpenUntitledFile to return yes if I'm in normal mode, and no if I'm in queuing mode. This all works well for kAEOpenDocuments, but not so well for kAEPrintDocuments. The problem is that in openDocumentWithContentsOfURL:display:error: (where I conditionally add to the queue) I have no way to know if its an kAEPrintDocuments or a kAEOpenDocuments. My app doesn't actually print, so I gave up at that point. Would be nice if NSApplication had a delegate message like applicationWillFinishLaunching that gives you a chance to show a modal ok/cancel dialog at launch. Please create a dupe. :) -- Sean McBride, B. Eng s...@rogue-research.com Rogue Researchwww.rogue-research.com Mac Software Developer Montréal, Québec, Canada ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: interpretKeyEvents not handling HOME and END keys?
On 3/6/09 11:46 AM, Eric Gorr said: I found this old thread: http://lists.apple.com/archives/cocoa-dev/2004/Sep/msg00161.html which discusses the same problem I am currently experiencing. On 10.5? I don't know when it started, but the home and end keys 'do the right thing' with NSTableView for me in 10.5 (they didn't used to). -- Sean McBride, B. Eng s...@rogue-research.com Rogue Researchwww.rogue-research.com Mac Software Developer Montréal, Québec, Canada ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Dynamic getting of a property of BOOL type
I am dynamically retrieving properties from an NSObject, in order to convert the types to string values and store them in XML. I am using the following line of code to send a message to the object to retrieve the property's value: id value = objc_msgSend(object, propSelector); BOOL booleanValue = (BOOL)value; The problem I am having is that I'm getting a warning on the second line. I've tried a number of variations, including: BOOL booleanValue = value; both of which give the following warning: warning: cast from pointer to integer of different size How can I properly convert this id returned from the dynamic invocation of the property getter to the BOOL value that it actually is? Thanks, Brad ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: interpretKeyEvents not handling HOME and END keys?
On Mar 6, 2009, at 1:29 PM, Sean McBride wrote: On 3/6/09 11:46 AM, Eric Gorr said: I found this old thread: http://lists.apple.com/archives/cocoa-dev/2004/Sep/msg00161.html which discusses the same problem I am currently experiencing. On 10.5=3F I don't know when it started, but the home and end keys 'do the right thing' with NSTableView for me in 10.5 (they didn't used to). Unfortunately, I have my own custom table view, not based on NSTableView, and would like to be able to do the right thing as well. Now, I can, of course, test for NSHomeFunctionKey NSEndFunctionKey, but as was mentioned in the thread, this isn't guaranteed to always do the right thing. If it is a bug that NSResponder does not have a scrollToBeginningOfDocument or scrollToEndOfDocument, I can file a bug report. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Moving a window offscreen
Hi All,
In my application I want to create an image of a document window as a
preview prior to displaying the window to the user. To obtain the
CGImage of a displayed window is simple enough using the CGWindow API
as shown below:
- (CGImageRef)CGImage;
{
return CGWindowListCreateImage(CGRectNull,
kCGWindowListOptionIncludingWindow, [self windowNumber],
kCGWindowImageDefault);
}
The problem comes when trying to display the window initially at a far-
off position so I can create the image and the move the window onto
the screen.
Setting the origin of the window to a point with large +ve or -ve
ordinates causes the window to appear at the edge of the main screen,
partly shown.
Has anybody any experience with either a) rendering an entire window
into a bitmap instead of to the screen, or b) moving the window
offscreen completely? If b) is possible, would the above code work for
such a window?
Thanks for your help,
Jonathan
http://espresso-served-here.com
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Re: Dynamic getting of a property of BOOL type
On Mar 6, 2009, at 11:35 AM, Brad O'Hearne wrote: How can I properly convert this id returned from the dynamic invocation of the property getter to the BOOL value that it actually is? You need to do this to get it to work correctly: BOOL boolValue = ((BOOL (*)(id, SEL))objc_msgSend)(anObject, aSelector); Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Dynamic getting of a property of BOOL type
id value = objc_msgSend(object, propSelector); BOOL booleanValue = (BOOL)value; How can I properly convert this id returned from the dynamic invocation of the property getter to the BOOL value that it actually is? Try BOOL booleanValue = (BOOL) (long) value; I believe this should also work on 64 bit. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Dynamic getting of a property of BOOL type
id value = objc_msgSend(object, propSelector); BOOL booleanValue = (BOOL)value; How can I properly convert this id returned from the dynamic invocation of the property getter to the BOOL value that it actually is? Try BOOL booleanValue = (BOOL) (long) value; I believe this should also work on 64 bit. ++ (As would Nick's solution) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Newbie query re notifications
On Fri, 6 Mar 2009 11:18:56 -0500, McLaughlin, Michael P. mp...@mitre.org said: [nc addObserver:self selector:@selector(getGPS) name:@fetchGPS object:nil]; Well, that's never going to work. There are two possibilities here: (1) Maybe you've defined - (void) getGPS: (NSNotification*) n But in that case it will never be called because its name is getGPS:, and you said getGPS which is not the same thing. (2) Maybe you've defined - (void) getGPS But in that case it will never be called because that is not the format of an eligible notification callback. As the docs say, The method the selector specifies must have one and only one argument. m. -- matt neuburg, phd = m...@tidbits.com, http://www.tidbits.com/matt/ A fool + a tool + an autorelease pool = cool! AppleScript: the Definitive Guide - Second Edition! http://www.tidbits.com/matt/default.html#applescriptthings ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: interpretKeyEvents not handling HOME and END keys?
On 3/6/09 1:37 PM, Eric Gorr said: If it is a bug that NSResponder does not have a scrollToBeginningOfDocument or scrollToEndOfDocument, I can file a bug report. IMNSHO yes. Note that /System/Library/Frameworks/AppKit.framework/ Resources/StandardKeyBinding.dict contains items with those names. Also, if you class-dump AppKit you'll see scrollToEndOfDocument in NSTableView and NSTextView. Mention rdar://3799975 in your bug. -- Sean McBride, B. Eng s...@rogue-research.com Rogue Researchwww.rogue-research.com Mac Software Developer Montréal, Québec, Canada ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: interpretKeyEvents not handling HOME and END keys?
On Mar 6, 2009, at 2:04 PM, Sean McBride wrote: On 3/6/09 1:37 PM, Eric Gorr said: If it is a bug that NSResponder does not have a scrollToBeginningOfDocument or scrollToEndOfDocument, I can file a bug report. IMNSHO yes. Note that /System/Library/Frameworks/AppKit.framework/ Resources/StandardKeyBinding.dict contains items with those names. Also, if you class-dump AppKit you'll see scrollToEndOfDocument in NSTableView and NSTextView. Mention rdar://3799975 in your bug. bug report added: rdar://6654819 ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: More user agent questions
Thanks for the suggestions. On Mar 5, 2009, at 22:49:34, Kyle Sluder wrote: On Thu, Mar 5, 2009 at 9:58 PM, Rick Mann rm...@latencyzero.com wrote: Our product (on the network) periodically updates its own software, and that update may include a new version of the Mac software. When the agent checks in and sees there's a new version, we'd like it to update ASAP, transparently (no user intervention required). Is this a custom app? If it's a commercial app, then I'd be very upset to find my app updating itself without my permission. I have voiced my opposition internally to automatic updates, and been ignored. However, in this context, it's not as bad as your typical commercial app. I really can't say more about it just now. Can any running instance (even if it's not for an admin user) shut down and relaunch other instances? Can it update launchd configuration as necessary for the other users? Maybe and no, respectively. To get the shutdown behavior, your agents would need to check in with each other and whichever performs the update needs to tell the others to shut down. A regular user can't update another user's launchd settings, though. If the UI is running, it will present a Sparkle-like dialog to warn the user that a new version is available. It may time out after a period of time and force the update. Basically, if our product updates its software, it's important that the Mac software update as well, otherwise things might break (we have no backward-compatibility requirement). I'm having a hard time figuring out under what circumstances you would need to force the update. Since you talk about administrative users, I'm inclined to think that this is not a custom app, but a commercial one. I can imagine the seething rage exploding after the first time the app forces its own update. I'm not sure about the distinction you're making between custom and commercial. Our product is a stand-alone consumer electronics system that happens to have software you can optionally install on Windows (ew) or Mac OS X (yay). The difficulty we face is that the main product can update itself at any time (typically in the middle of the night), and with that might come an incompatibility with the Mac (or Windoze) software. Also, what is this Mac software -- actual system software, or your own software? Are you saying that you would forcibly restart the machine after applying the update? This is a very bad idea. It is our own software. We would never restart the machine. Only our software. How do people deal with their agents running when there are multiple users logged in? IPC. Maybe have instances check the local port nameserver for other instances to communicate with. It's your problem to solve. I honestly think it's a problem for Apple to solve, and here's why: They provide a mechanism by which per-user software can be made to run, and they provide a multi-user environment. What happens if three users are logged in, and two of them are running iTunes, and the current user gets a software update for iTunes? Obviously one user doesn't care (not running iTunes). Is the current user able to update iTunes, given that another instance is running? What if the non- current user is in the middle of burning a CD? If iTunes solves the problem, what does Pages do? Do they also solve it, perhaps with slightly different behavior? This is a system-wide problem that affects almost any app, background or not. It would be nice to have support and guidance from Apple. Anyway, thanks for the suggestions, we'll add them to our considerations. -- Rick ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Newbie query re notifications
But in that case it will never be called because its name is getGPS:, and you said @selector(getGPS) which is not the same thing. Yes, that one gets me every time. Why, when you do @selector(oops_i_forgot_the_colon) does the compiler not flag it as an error (or at least a warning). Can you put any old thing in the brackets there? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSImage/NSBitmapImageRep color shifts when creating scaled copy
I'm trying to create a scaled-down copy of a large NSBitmapImageRep
(i.e., 3200x2400 - 320x240). The smaller image eventually gets
passed to OpenGL for drawing. What I'm finding is that the copy has
color shifted. When I draw the copy, it appears to be darker and more
saturated than the original.
I have tried several ways to get a copy that has the same color
characteristics as the original but no success so far. My simplest
version looks like this:
NSRect resizedBounds = {NSZeroPoint, desiredBitmapSize};
NSImage* resizedImage = [[[NSImage alloc]
initWithSize:resizedBounds.size] autorelease];
[resizedImage lockFocus];
[[NSGraphicsContext currentContext]
setImageInterpolation:NSImageInterpolationHigh];
[image drawInRect:resizedBounds fromRect:NSZeroRect
operation:NSCompositeCopy fraction:1.0];
[resizedImage unlockFocus];
bitmapImage = [NSBitmapImageRep imageRepWithData:[resizedImage
TIFFRepresentation]];
Am I missing something or is this just how Quartz works? Is there
another way to get there? I'm not wedded to NSImage and friends if a
better solution exists elsewhere. This needs to run on 10.4 or later.
Thanks,
steve
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NSDrawNinePartImage draws slowly in CALayer
Hello,
I wrote a delegate that draws a bezel inside a CALayer using
NSDrawNinePartImage. The drawing happens inside the
drawLayer:inContext: method and it works well. The only problem is
that it redraws really slow when the layers frame is resized by the
user.
The layer is simply attached to a custom view for testing the whole
thing. This view is the only view of a window, and when I resize that
window, my layer is resized too. But it feels very clunky.
I was wondering if I'm doing something really stupid here... Does
anybody know if there's a better way to tackle this?
Thank you!
Sebastian
There's no other code than these two methods in my custom view:
- (void)awakeFromNib {
CALayer *rootLayer = [CALayer layer];
rootLayer.delegate = self;
rootLayer.needsDisplayOnBoundsChange = YES;
[self setLayer:rootLayer];
[self setWantsLayer:YES];
[rootLayer setNeedsDisplay];
}
- (void)drawLayer:(CALayer *)layer inContext:(CGContextRef)ctx {
CGRect boundsRect = CGContextGetClipBoundingBox(ctx);
// Draw colored interior
CGRect bgRect = CGRectInset(boundsRect, 1.0, 1.0);
CGColorRef color = CGColorCreateGenericRGB(0.0, 0.0, 1.0, 0.2);
CGContextSetFillColorWithColor(ctx, color);
CGContextFillRect(ctx, bgRect);
// Draw bezel
NSDrawNinePartImage(
NSRectFromCGRect(boundsRect),
[NSImage
imageNamed:@ClipFrame-N-TL],
[NSImage
imageNamed:@ClipFrame-N-T],
[NSImage
imageNamed:@ClipFrame-N-TR],
[NSImage
imageNamed:@ClipFrame-N-L],
[NSImage
imageNamed:@ClipFrame-N-C],
[NSImage
imageNamed:@ClipFrame-N-R],
[NSImage
imageNamed:@ClipFrame-N-BL],
[NSImage
imageNamed:@ClipFrame-N-B],
[NSImage
imageNamed:@ClipFrame-N-BR],
NSCompositeSourceOver,
1.0,
NO);
}
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Re: Dynamic getting of a property of BOOL type
On Fri, Mar 6, 2009 at 10:53 AM, Paul Sanders p.sand...@dsl.pipex.com wrote: id value = objc_msgSend(object, propSelector); BOOL booleanValue = (BOOL)value; How can I properly convert this id returned from the dynamic invocation of the property getter to the BOOL value that it actually is? Try BOOL booleanValue = (BOOL) (long) value; I believe this should also work on 64 bit. ++ (As would Nick's solution) To put it bluntly, Nick's solution is the correct way to do this. Just casting the return value may work for now, but there are no guarantees. -- Clark S. Cox III clarkc...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSDrawNinePartImage draws slowly in CALayer
Le 6 mars 09 à 20:33, Sebastian Morsch a écrit :
Hello,
I wrote a delegate that draws a bezel inside a CALayer using
NSDrawNinePartImage. The drawing happens inside the
drawLayer:inContext: method and it works well. The only problem is
that it redraws really slow when the layers frame is resized by the
user.
The layer is simply attached to a custom view for testing the whole
thing. This view is the only view of a window, and when I resize
that window, my layer is resized too. But it feels very clunky.
I was wondering if I'm doing something really stupid here... Does
anybody know if there's a better way to tackle this?
Thank you!
Sebastian
There's no other code than these two methods in my custom view:
- (void)awakeFromNib {
CALayer *rootLayer = [CALayer layer];
rootLayer.delegate = self;
rootLayer.needsDisplayOnBoundsChange = YES;
[self setLayer:rootLayer];
[self setWantsLayer:YES];
[rootLayer setNeedsDisplay];
}
- (void)drawLayer:(CALayer *)layer inContext:(CGContextRef)ctx {
CGRect boundsRect = CGContextGetClipBoundingBox(ctx);
// Draw colored interior
CGRect bgRect = CGRectInset(boundsRect, 1.0, 1.0);
CGColorRef color = CGColorCreateGenericRGB(0.0, 0.0, 1.0, 0.2);
CGContextSetFillColorWithColor(ctx, color);
CGContextFillRect(ctx, bgRect);
// Draw bezel
NSDrawNinePartImage(
NSRectFromCGRect(boundsRect),
[NSImage
imageNamed:@ClipFrame-N-TL],
[NSImage
imageNamed:@ClipFrame-N-T],
[NSImage
imageNamed:@ClipFrame-N-TR],
[NSImage
imageNamed:@ClipFrame-N-L],
[NSImage
imageNamed:@ClipFrame-N-C],
[NSImage
imageNamed:@ClipFrame-N-R],
[NSImage
imageNamed:@ClipFrame-N-BL],
[NSImage
imageNamed:@ClipFrame-N-B],
[NSImage
imageNamed:@ClipFrame-N-BR],
NSCompositeSourceOver,
1.0,
NO);
}
If you want to know why your code is slow, use the Xcode Debug Menu
Launch Using Performance Tool Shark.
Shark will give you better and more accurate answer.
My guess is that you are creating the images at each call, which
require to read them from disk, and decode them and is very slow.
Just an other details, instead of creating the color at each call, you
can use CGContextSetRGBFillColor(ctx, 0, 0, 1, .2).
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Performance degrades dramatically in [NSManagedObjectContext executeFetchRequest:error:]
Hello Al! Summary: It looks like [NSManagedObjectContext executeFetchRequest:error:] starts to evaluate a predicate ([NSPredicate evaluateWithObject:]) with objects that was not requested and was not fetched from a database. Our application makes prefetching of CoreData entities with relationships like NSFetchRequest* requestRelatedTags = [[[ NSFetchRequest alloc] init] autorelease]; [requestRelatedTags setEntity: [NSEntityDescription entityForName: kFSIValueElementA inManagedObjectContext : [ md managedObjectContext]] ];[requestRelatedTags setFetchLimit: 100 ];NSPredicate * predicate = [ NSPredicate predicateWithFormat: @(self IN %@),[items valueForKey:@objectID]];[requestRelatedTags setPredicate:predicate]; [requestRelatedTags setRelationshipKeyPathsForPrefetching: [ NSArray arrayWithObjects:@tags,nil ]];[requestRelatedTags setReturnsObjectsAsFaults: true];items0_ = [[md managedObjectC ontext] executeFetchRequest: requestRelatedTags error: nil]; where items is an array of 100 NSManagedObjects, tags is to-many relationship of the kFSIValueElementA entity with inverse to-one relationship. At start this code works quickly and takes fixed amount of time (0.03-0.04 sec) every time. But at some point it starts to work very slowly taking more and more time. Instruments shows that it fetches 100 objects every time from a database. But Shark shows that it uses [NSPredicate evaluateWithObject:] more and more times. To be precise, it invokes [NSPredicate evaluateWithObject:] 100 times more every time. [NSPredicate evaluateWithObject:] is invoked every time from [NSManagedObjectContext executeFetchRequest: error:]. We added logging to [NSPredicate evaluateWithObject:] and we see that it is evaluated on objets that was not requested by the fetch request and was not fetched from the SQLite database. Thus this is a bug in [NSManagedObjectContext executeFetchRequest:error:]. It should not filter objects that was not. Does anybody have any ideas how to solve this problem? Best Regards, Oleksiy Gorelov ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Newbie query re notifications
On Mar 6, 2009, at 11:21 AM, Paul Sanders wrote: Yes, that one gets me every time. Why, when you do @selector(oops_i_forgot_the_colon) does the compiler not flag it as an error (or at least a warning). Can you put any old thing in the brackets there? I'd suggest using: -Wundeclared-selector j o a r ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Performance degrades dramatically in [NSManagedObjectContext executeFetchRequest:error:]
Hello All! Summary: It looks like [NSManagedObjectContext executeFetchRequest:error:] starts to evaluate a predicate ([NSPredicate evaluateWithObject:]) with objects that was not requested and was not fetched from a database. Our application makes prefetching of CoreData entities with relationships like NSFetchRequest* requestRelatedTags = [[[NSFetchRequest alloc] init] autorelease]; [requestRelatedTags setEntity:[NSEntityDescription entityForName : kFSIValueElementA inManagedObjectContext : [md managedObjectContext ]] ]; [requestRelatedTags setFetchLimit: 100 ]; NSPredicate * predicate = [ NSPredicate predicateWithFormat: @(self IN %@),[items valueForKey: @objectID]]; [requestRelatedTags setPredicate:predicate]; [requestRelatedTags setRelationshipKeyPathsForPrefetching : [ N SArray arrayWithObjects: @tags, nil]];[requestRelatedTags setReturnsObjectsAsFaults: true]; items0_ = [[md managedObjectContext] executeFetchRequest : requestRelatedTags error: nil]; where items is an array of 100 NSManagedObjects, tags is to-many relationship of the kFSIValueElementA entity with inverse to-one relationship. At start this code works quickly and takes fixed amount of time (0.03-0.04 sec) every time. But at some point it starts to work very slowly taking more and more time. Instruments shows that it fetches 100 objects every time from a database. But Shark shows that it uses [NSPredicate evaluateWithObject:] more and more times. To be precise, it invokes [NSPredicate evaluateWithObject:] 100 times more every time. [NSPredicate evaluateWithObject:] is invoked every time from [NSManagedObjectContext executeFetchRequest: error:]. We added logging to [NSPredicate evaluateWithObject:] and we see that it is evaluated on objets that was not requested by the fetch request and was not fetched from the SQLite database. Thus this is a bug in [NSManagedObjectContext executeFetchRequest:error:]. It should not filter objects that was not. Does anybody have any ideas how to solve this problem? Best Regards,Oleksiy Gorelov ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Performance degrades dramatically in [NSManagedObjectContext executeFetchRequest:error:]
Hello All! (this is the same in plain text) Summary: It looks like [NSManagedObjectContext executeFetchRequest:error:] starts to evaluate a predicate ([NSPredicate evaluateWithObject:]) with objects that was not requested and was not fetched from a database. Our application makes prefetching of CoreData entities with relationships like NSFetchRequest* requestRelatedTags = [[[NSFetchRequest alloc] init] autorelease]; [requestRelatedTags setEntity:[NSEntityDescription entityForName : kFSIValueElementA inManagedObjectContext : [md managedObjectContext ]] ]; [requestRelatedTags setFetchLimit: 100 ]; NSPredicate * predicate = [ NSPredicate predicateWithFormat: @(self IN %@),[items valueForKey: @objectID]]; [requestRelatedTags setPredicate:predicate]; [requestRelatedTags setRelationshipKeyPathsForPrefetching : [ NSArray arrayWithObjects: @tags, nil]]; [requestRelatedTags setReturnsObjectsAsFaults: true]; items0_ = [[md managedObjectContext] executeFetchRequest : requestRelatedTags error: nil]; where items is an array of 100 NSManagedObjects, tags is to-many relationship of the kFSIValueElementA entity with inverse to-one relationship. At start this code works quickly and takes fixed amount of time (0.03-0.04 sec) every time. But at some point it starts to work very slowly taking more and more time. Instruments shows that it fetches 100 objects every time from a database. But Shark shows that it uses [NSPredicate evaluateWithObject:] more and more times. To be precise, it invokes [NSPredicate evaluateWithObject:] 100 times more every time. [NSPredicate evaluateWithObject:] is invoked every time from [NSManagedObjectContext executeFetchRequest: error:]. We added logging to [NSPredicate evaluateWithObject:] and we see that it is evaluated on objets that was not requested by the fetch request and was not fetched from the SQLite database. Thus this is a bug in [NSManagedObjectContext executeFetchRequest:error:]. It should not filter objects that was not. Does anybody have any ideas how to solve this problem? Best Regards, Oleksiy Gorelov ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: A question about NSPredicateEditor and NSPredicateEditorRowTemplate
On Mar 6, 2009, at 6:42 AM, David Hoerl wrote:
[following up to a Jan 08 thread]
is it possible to modify the width of the NSTextField representing
a Number in a NSPredicateEditorRowTemplate ?
Yes, but not yet in Interface Builder. To do so programatically,
get the row template, get the text field as the last member of the
row template's templateViews array, and set its frame to the size
you want.
I hope that helps,
-Peter
Peter, I tried to do as you suggest - set the frames to what I want,
but it has no effect. Any other suggestions?
David
PS: code
-applicationDidFinishLaunching
...
int i = 0;
NSArray *temps = [predicateEditor rowTemplates];
for(NSPredicateEditorRowTemplate *temp in temps) {
NSArray *views = [temp templateViews];
int j = 0;
int x = 0;
for(NSControl *view in views) { // I know, view is not a good
name for this :-)
NSLog(@temp=%@ view=%@ frame: %@, temp, view,
NSStringFromRect([view frame])); // verify all is connected
if(i==0) continue; // don't touch first one
NSRect r = [view frame];
r.origin.x = 0; // just for testing impact...
[view setFrame:r];
NSLog(@ mod frame=%@, NSStringFromRect([view
frame])); // yes, it took
++j;
}
++i;
}
David, the above code changes the frame origin, but not the frame
width. Changing the frame origin will have no effect (the origins are
controlled by NSPredicateEditor). But changing the width should have
an effect.
-Peter
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Re: NSDrawNinePartImage draws slowly in CALayer
Le 6 mars 09 à 20:42, Jean-Daniel Dupas a écrit : Le 6 mars 09 à 20:33, Sebastian Morsch a écrit : Hello, I wrote a delegate that draws a bezel inside a CALayer using NSDrawNinePartImage. The drawing happens inside the drawLayer:inContext: method and it works well. The only problem is that it redraws really slow when the layers frame is resized by the user. The layer is simply attached to a custom view for testing the whole thing. This view is the only view of a window, and when I resize that window, my layer is resized too. But it feels very clunky. I was wondering if I'm doing something really stupid here... Does anybody know if there's a better way to tackle this? Thank you! Sebastian If you want to know why your code is slow, use the Xcode Debug Menu Launch Using Performance Tool Shark. To be exact, this is the Menu Run Start With Performance Tool Shark Shark will give you better and more accurate answer. My guess is that you are creating the images at each call, which require to read them from disk, and decode them and is very slow. Just an other details, instead of creating the color at each call, you can use CGContextSetRGBFillColor(ctx, 0, 0, 1, .2). ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Newbie query re notifications
Le 6 mars 09 à 20:47, Joar Wingfors a écrit : On Mar 6, 2009, at 11:21 AM, Paul Sanders wrote: Yes, that one gets me every time. Why, when you do @selector(oops_i_forgot_the_colon) does the compiler not flag it as an error (or at least a warning). Can you put any old thing in the brackets there? Of course you can put anything. Else how would you be able to create a method and a selector at runtime ? I'd suggest using: -Wundeclared-selector j o a r ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/devlists%40shadowlab.org This email sent to devli...@shadowlab.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 arch...@mail-archive.com
Re: EXC_BAD_ACCESS in _class_changeInfo
On Mar 3, 2009, at 11:04 AM, Greg Parker wrote: NSZombie and Guard Malloc are probably your new best friends. Information on NSZombie and other cool stuff can be found here: Technical Note TN2124 Mac OS X Debugging Magic http://developer.apple.com/technotes/tn2004/tn2124.html ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Newbie query re notifications
I'd suggest using: -Wundeclared-selector j o a r Excellent. Thank you. Of course you can put anything. Else how would you be able to create a method and a selector at runtime ? So how does the compiler map any old string to a SEL (which is just a number)? Is it some kind of hash (in which case how can you be sure it is unique) or is it something else? Inquiring minds want to know. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Dynamic getting of a property of BOOL type
From Clark S. Cox III. This answers a question that has kindof been in my mind for a while and I felt it was useful enough to post back to the list. PS: be as blunt as you like :) -- objc_msgSend and friends are special. They expect to be called *as if* they were defined with the same parameters and return type as the method being called. In the case of BOOL, it is unlikely that id and BOOL would be returned in different ways, butnits best to always do the right thing whenever possible. Sent from my iPhone On Mar 6, 2009, at 12:22, Paul Sanders wrote: To put it bluntly, Nick's solution is the correct way to do this. Just casting the return value may work for now, but there are no guarantees. Why not? It seems to me that the two approaches are equivalent. Both assume that objc_msgSend will return something that can be cast to a BOOL. The difference is purely one of style. Nick's solution has the advantage that one does not need to assume that sizeof (long) == sizeof (id) in both 32 and 64 bit mode. Our messages - his and mine - crossed in the post. PS: You could cast via an NSInteger, which I believe is meant to represent the native word length of the machine, but that is only defined in the 10.5 SDK and later. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Using NSExceptionHandler causes a linker error
I am trying to make use of the services of NSExceptionHandler in my code, but when I do so I get a linker error. Perhaps someone can help. Code: #import ExceptionHandling/NSExceptionHandler.h ... NSExceptionHandler *nseh = [NSExceptionHandler defaultExceptionHandler]; The linker error is an undefined symbol: .objc_class_name_NSExceptionHandler I get the same error with both the 10.4 and 10.5 SDK's and I can't find any obvious solution. The framework appears to exist OK (in /Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks, and also in the MacOSX10.5.sdk). If it were windows, I would be looking for a .lib to link against but things seem a little different in Mac world... TIA - Paul Sanders. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Why is my UIColor white actually gray?
Hello -
I have a table view with dynamic subclassed cells :
- (id)initWithFrame:(CGRect)aRect reuseIdentifier:(NSString *)identifier
{
if (self = [super initWithFrame:aRect reuseIdentifier:identifier])
{
self.selectionStyle = UITableViewCellSelectionStyleNone;
[self setImage:[[UIImage imageNamed:@WF-MyLocBu-
DistBack.png]autorelease]];
UIImageView *imageView = [[UIImageView alloc] initWithImage:
produceImage];
[self.contentView addSubview:imageView];
[imageView release];
CGRect frame = CGRectMake(60, 0, 140, 60);
produceName = [[UILabel alloc] initWithFrame:frame];
produceName.backgroundColor = [UIColor clearColor];
produceName.opaque = YES;
produceName.textAlignment = UITextAlignmentLeft;
produceName.textColor = [UIColor whiteColor];
produceName.font = [UIFont boldSystemFontOfSize:16];
[self.contentView addSubview:produceName];
[produceName release];
}
return self;
}
BUT The font is hard to read and actually gray and not white?
Thanks
James Cicenia
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Re: Why is my UIColor white actually gray?
Could it be anti-aliased?
On Mar 6, 2009, at 2:57 PM, James Cicenia wrote:
Hello -
I have a table view with dynamic subclassed cells :
- (id)initWithFrame:(CGRect)aRect reuseIdentifier:(NSString
*)identifier
{
if (self = [super initWithFrame:aRect reuseIdentifier:identifier])
{
self.selectionStyle = UITableViewCellSelectionStyleNone;
[self setImage:[[UIImage imageNamed:@WF-MyLocBu-
DistBack.png]autorelease]];
UIImageView *imageView = [[UIImageView alloc] initWithImage:
produceImage];
[self.contentView addSubview:imageView];
[imageView release];
CGRect frame = CGRectMake(60, 0, 140, 60);
produceName = [[UILabel alloc] initWithFrame:frame];
produceName.backgroundColor = [UIColor clearColor];
produceName.opaque = YES;
produceName.textAlignment = UITextAlignmentLeft;
produceName.textColor = [UIColor whiteColor];
produceName.font = [UIFont boldSystemFontOfSize:16];
[self.contentView addSubview:produceName];
[produceName release];
}
return self;
}
BUT The font is hard to read and actually gray and not white?
Thanks
James Cicenia
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Alex Kac - President and Founder
Web Information Solutions, Inc.
The optimist proclaims that we live in the best of all possible
worlds; and the pessimist fears this is true.
-- James Clabell
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Re: Using NSExceptionHandler causes a linker error
Paul, You need to add the ExceptionHandling.framework to your project, and set it to be part of your target. That's how you tell Xcode to make the target link to it. * Right-click in the Groups Files pane * Select Add Existing Frameworks... j o a r On Mar 6, 2009, at 12:56 PM, Paul Sanders wrote: I am trying to make use of the services of NSExceptionHandler in my code, but when I do so I get a linker error. Perhaps someone can help. Code: #import ExceptionHandling/NSExceptionHandler.h ... NSExceptionHandler *nseh = [NSExceptionHandler defaultExceptionHandler]; The linker error is an undefined symbol: .objc_class_name_NSExceptionHandler I get the same error with both the 10.4 and 10.5 SDK's and I can't find any obvious solution. The framework appears to exist OK (in / Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks, and also in the MacOSX10.5.sdk). If it were windows, I would be looking for a .lib to link against but things seem a little different in Mac world... ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Newbie query re notifications
Le 6 mars 09 à 21:25, Paul Sanders a écrit : I'd suggest using: -Wundeclared-selector j o a r Excellent. Thank you. Of course you can put anything. Else how would you be able to create a method and a selector at runtime ? So how does the compiler map any old string to a SEL (which is just a number)? Is it some kind of hash (in which case how can you be sure it is unique) or is it something else? Inquiring minds want to know. Conceptually: It defined a selector reference: SEL * _arbitrary_string_selector; and then @selector(my_arbitrary_string) is replaced by *_arbitrary_string_selector; It also generates some data in the __OBJC segment of the binary to tell the objc runtime to initialize the selector pointed by the reference at load time. @selector() is not considered as a constant value. You cannot use it in static initialization for example (the compiler will report an error). ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSImage/NSBitmapImageRep color shifts when creating scaled copy
On Fri, Mar 6, 2009 at 2:21 PM, Steve Christensen puns...@mac.com wrote: I'm trying to create a scaled-down copy of a large NSBitmapImageRep (i.e., 3200x2400 - 320x240). The smaller image eventually gets passed to OpenGL for drawing. What I'm finding is that the copy has color shifted. When I draw the copy, it appears to be darker and more saturated than the original. Sounds like you're falling victim to this problem: http://www.4p8.com/eric.brasseur/gamma.html --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 arch...@mail-archive.com
Re: Why is my UIColor white actually gray?
Hmm,
What do you mean?
Thanks
James
On Mar 6, 2009, at 3:00 PM, Alex Kac wrote:
Could it be anti-aliased?
On Mar 6, 2009, at 2:57 PM, James Cicenia wrote:
Hello -
I have a table view with dynamic subclassed cells :
- (id)initWithFrame:(CGRect)aRect reuseIdentifier:(NSString
*)identifier
{
if (self = [super initWithFrame:aRect reuseIdentifier:identifier])
{
self.selectionStyle = UITableViewCellSelectionStyleNone;
[self setImage:[[UIImage imageNamed:@WF-MyLocBu-
DistBack.png]autorelease]];
UIImageView *imageView = [[UIImageView alloc] initWithImage:
produceImage];
[self.contentView addSubview:imageView];
[imageView release];
CGRect frame = CGRectMake(60, 0, 140, 60);
produceName = [[UILabel alloc] initWithFrame:frame];
produceName.backgroundColor = [UIColor clearColor];
produceName.opaque = YES;
produceName.textAlignment = UITextAlignmentLeft;
produceName.textColor = [UIColor whiteColor];
produceName.font = [UIFont boldSystemFontOfSize:16];
[self.contentView addSubview:produceName];
[produceName release];
}
return self;
}
BUT The font is hard to read and actually gray and not white?
Thanks
James Cicenia
___
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Alex Kac - President and Founder
Web Information Solutions, Inc.
The optimist proclaims that we live in the best of all possible
worlds; and the pessimist fears this is true.
-- James Clabell
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Re: Why is my UIColor white actually gray?
Well if the text is anti-aliased (which it is by default in a
UILabel), then the center of the text would be white, but the edges
are gray to help make it smooth. If the font is small enough, it can
look gray and not pure white.
On Mar 6, 2009, at 3:17 PM, James Cicenia wrote:
Hmm,
What do you mean?
Thanks
James
On Mar 6, 2009, at 3:00 PM, Alex Kac wrote:
Could it be anti-aliased?
On Mar 6, 2009, at 2:57 PM, James Cicenia wrote:
Hello -
I have a table view with dynamic subclassed cells :
- (id)initWithFrame:(CGRect)aRect reuseIdentifier:(NSString
*)identifier
{
if (self = [super initWithFrame:aRect reuseIdentifier:identifier])
{
self.selectionStyle = UITableViewCellSelectionStyleNone;
[self setImage:[[UIImage imageNamed:@WF-MyLocBu-
DistBack.png]autorelease]];
UIImageView *imageView = [[UIImageView alloc] initWithImage:
produceImage];
[self.contentView addSubview:imageView];
[imageView release];
CGRect frame = CGRectMake(60, 0, 140, 60);
produceName = [[UILabel alloc] initWithFrame:frame];
produceName.backgroundColor = [UIColor clearColor];
produceName.opaque = YES;
produceName.textAlignment = UITextAlignmentLeft;
produceName.textColor = [UIColor whiteColor];
produceName.font = [UIFont boldSystemFontOfSize:16];
[self.contentView addSubview:produceName];
[produceName release];
}
return self;
}
BUT The font is hard to read and actually gray and not white?
Thanks
James Cicenia
___
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Alex Kac - President and Founder
Web Information Solutions, Inc.
The optimist proclaims that we live in the best of all possible
worlds; and the pessimist fears this is true.
-- James Clabell
Alex Kac - President and Founder
Web Information Solutions, Inc.
I am not young enough to know everything.
--Oscar Wilde
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window wont close with command-w
Hi there, I've created a preference window for an app i'm working on, and for some reason it won't close when i press command-w? is there something in particular I need to setup for that to happen? Cheers ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: window wont close with command-w
On Mar 6, 2009, at 2:27 PM, Aaron Wallis wrote: I've created a preference window for an app i'm working on, and for some reason it won't close when i press command-w? is there something in particular I need to setup for that to happen? Are you sure you have a close menu item, and that it is hooked up correctly in IB, and it is also being validated correctly? Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Why is my UIColor white actually gray?
I don't see any property for antialiasing on or off.
How do I turn it off to see?
On Mar 6, 2009, at 3:21 PM, Alex Kac wrote:
Well if the text is anti-aliased (which it is by default in a
UILabel), then the center of the text would be white, but the edges
are gray to help make it smooth. If the font is small enough, it can
look gray and not pure white.
On Mar 6, 2009, at 3:17 PM, James Cicenia wrote:
Hmm,
What do you mean?
Thanks
James
On Mar 6, 2009, at 3:00 PM, Alex Kac wrote:
Could it be anti-aliased?
On Mar 6, 2009, at 2:57 PM, James Cicenia wrote:
Hello -
I have a table view with dynamic subclassed cells :
- (id)initWithFrame:(CGRect)aRect reuseIdentifier:(NSString
*)identifier
{
if (self = [super initWithFrame:aRect reuseIdentifier:identifier])
{
self.selectionStyle = UITableViewCellSelectionStyleNone;
[self setImage:[[UIImage imageNamed:@WF-MyLocBu-
DistBack.png]autorelease]];
UIImageView *imageView = [[UIImageView alloc] initWithImage:
produceImage];
[self.contentView addSubview:imageView];
[imageView release];
CGRect frame = CGRectMake(60, 0, 140, 60);
produceName = [[UILabel alloc] initWithFrame:frame];
produceName.backgroundColor = [UIColor clearColor];
produceName.opaque = YES;
produceName.textAlignment = UITextAlignmentLeft;
produceName.textColor = [UIColor whiteColor];
produceName.font = [UIFont boldSystemFontOfSize:16];
[self.contentView addSubview:produceName];
[produceName release];
}
return self;
}
BUT The font is hard to read and actually gray and not white?
Thanks
James Cicenia
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Alex Kac - President and Founder
Web Information Solutions, Inc.
The optimist proclaims that we live in the best of all possible
worlds; and the pessimist fears this is true.
-- James Clabell
Alex Kac - President and Founder
Web Information Solutions, Inc.
I am not young enough to know everything.
--Oscar Wilde
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Re: How to change the Installer.app path of files in a XCode project
On Fri, Mar 6, 2009 at 3:46 PM, learnfromforum learnfromforum learnfromfo...@yahoo.com wrote: But in the Get Info window, there is only Choose button for changing the path of this file. And Installer.app is not a directory so that I can not go to its sub directories. Installer.app is just as much of a directory on 10.5 as it was on 10.4. Application bundles *are* directories. --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 arch...@mail-archive.com
Re: Why is my UIColor white actually gray?
On Fri, Mar 6, 2009 at 4:37 PM, James Cicenia ja...@jimijon.com wrote: I don't see any property for antialiasing on or off. How do I turn it off to see? You don't. Aliased text is more commonly known as the jaggies and can be particularly hard to read. --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 arch...@mail-archive.com
Re: Why is my UIColor white actually gray?
On Mar 6, 2009, at 12:57 PM, James Cicenia wrote: [self setImage:[[UIImage imageNamed:@WF-MyLocBu- DistBack.png]autorelease]]; Unrelated, but don't do this. You don't have ownership to the results of +imageNamed:, so you should not be releasing or autoreleasing 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 arch...@mail-archive.com
Re: NSImage/NSBitmapImageRep color shifts when creating scaled copy
On Mar 6, 2009, at 1:15 PM, Kyle Sluder wrote: On Fri, Mar 6, 2009 at 2:21 PM, Steve Christensen puns...@mac.com wrote: I'm trying to create a scaled-down copy of a large NSBitmapImageRep (i.e., 3200x2400 - 320x240). The smaller image eventually gets passed to OpenGL for drawing. What I'm finding is that the copy has color shifted. When I draw the copy, it appears to be darker and more saturated than the original. Sounds like you're falling victim to this problem: http://www.4p8.com/eric.brasseur/gamma.html In this case what I found out was running into a difference of opinion between the ColorSync profile attached to the NSBitmapImageRep in the source image and the default one (or lack of one) for a newly-created NSBitmapImageRep in the resized image. I ended up rewriting my code to create a new NSBitmapImageRep with the destination size, then copy what I thought were relevant properties (NSImageRGBColorTable, NSImageColorSyncProfileData, NSImageGamma) from the source NSBitmapImageRep if they exist. Then create a context using +[NSGraphicsContext graphicsContextWithBitmapImageRep:] using the destination NSBitmapImageRep and draw into that. steve ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to change the Installer.app path of files in a XCode project
On Fri, Mar 6, 2009 at 3:46 PM, learnfromforum learnfromforum learnfromfo...@yahoo.com wrote: In the Resources directory of an open source XCode project (developed under Mac 10.4), there are some image files: ... Now, I want to change the directory path of these three .tif filesfrom /Applications/Utilities/Installer.app/Contents/Resources/DotBlue.tif to /System/Library/CoreServices/Installer.app/Contents/Resources/DotBlue.tif This belongs on the xcode-users list, not cocoa-dev ... it has nothing at all to do with Cocoa. Please use the appropriate list for your questions. -- 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 arch...@mail-archive.com
loading agent with launchd gets Bus Error
If I let launchd launch my user agent, (via .plist file in ~/Library/ LaunchAgents), I get a Bus Error, even if all I do is call NSLog() from main and then return. Also, load or load -w result in nothing to load from launchctl. If I launch my agent from the command line or from Xcode, it seems to run fine. It has LSUIElement set to true in it's Info.plist. Any ideas what I'm doing wrong? TIA! My plist looks like this (after launchctl unformatted it): ?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 true/ keyLabel/key stringcom.test.test/string keyLimitLoadToSessionType/key stringAqua/string keyProgram/key string/Users/rmann/Desktop/TestAgents/build/Debug/TestAgents.app/ Contents/Resources/Agent.app/Contents/MacOS/Agent/string /dict /plist -- Rick ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
When to release an NSThread instance
I have a main thread method that allocates an NSThread object and inits with initWithTarget:selector:object. I then invoke the NSTask instance with -start. The specified selector is invoked, and there performs a background task that takes some time. When it is done, that method invokes a callback using performSelectorOnMainThread:withObject:waitUntilDone. That callback selector updates the applications U/I to reflect the outcome of the background task. After invoking the callback, the background task method cleans up, releases its autorelease pool, and then control reaches the end of the method. I am under the impression that having the method reach the end is sufficient to have the thread end. Is that correct? or do I need to invoke the thread instance with -exit ? Big question: how do I release the memory associated with the allocated task instance? I have two notions: 1) have the main thread callback autorelease the thread instance 2) have the thread autorelease itself at the end of the background task method after it invokes the callback (which is invokes with ...waitUntilDone:YES). I know I am treading in dangerous waters with threads... but the background activity can take many seconds, and I want the U/I responsive while the background activity is being performed. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to create a modal dialog that blocks on start-up?
On 07/03/2009, at 4:41 AM, Sean McBride wrote: I actually used a DTS incident on this very issue. As you say, it is hard to get exactly right (if you want finesse). In the end, I got about 90% of the way to perfect. I ended up doing the following: - subclassing NSDocumentController - giving it 2 modes: normal and queuing - in normal mode it works like super - in queuing mode, I queue any kAEPrintDocuments and kAEOpenDocuments that I receive - I set it to queue mode in applicationWillFinishLaunching (which is before any kAEPrintDocuments/kAEOpenDocuments arrive) - in applicationDidFinishLaunching I show my splash screen - at this point the user may try to open or print documents, but I don't want them to appear, but nor do I want them to be lost - when OK is clicked in the splash screen, I end queuing mode and process items in the queue - if there are no items in the queue I call [self openUntitledDocumentAndDisplay:error:] - if there are items in the queue I call [super openDocumentWithContentsOfURL:display:error:] - also I implement applicationShouldOpenUntitledFile to return yes if I'm in normal mode, and no if I'm in queuing mode. This all works well for kAEOpenDocuments, but not so well for kAEPrintDocuments. The problem is that in openDocumentWithContentsOfURL:display:error: (where I conditionally add to the queue) I have no way to know if its an kAEPrintDocuments or a kAEOpenDocuments. My app doesn't actually print, so I gave up at that point. Would be nice if NSApplication had a delegate message like applicationWillFinishLaunching that gives you a chance to show a modal ok/cancel dialog at launch. Please create a dupe. :) Wow, that does seem involved... It was the seeds of a solution like this bubbling up in my head that had me in a bit of a panic, given my time constraints. I did file an enhancement request, #6653022 I tried Jeff Laing's suggestion of just handling the dialog in response to both -applicationShouldOpenUntitledFile and application:openFile: and as far as I can see that is sufficient - it defers the opening of both new and file documents until the dialog is dismissed. I haven't tried it for the print documents case - I will make sure I test that, as I do print. Using -awakeFromNib also ought to work as Andy Lee suggested, though I haven't tried it since Jeff's is working so far. Thanks to everyone for their help, --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
archiving NSPrintInfo created via initWithDictionary crashes
on 10.5.6 the following code snippet: NSPrintInfo* sp = [NSPrintInfo sharedPrintInfo]; NSDictionary* dict = [sp dictionary]; NSPrintInfo* pi = [[NSPrintInfo alloc] initWithDictionary: dict]; NSData* piData = [NSKeyedArchiver archivedDataWithRootObject: pi]; will crash with the following: *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSKeyedArchiver encodeValueOfObjCType:at:]: this archiver cannot encode structs' with the call stack: #0 0x96772fb4 in ___TERMINATING_DUE_TO_UNCAUGHT_EXCEPTION___ #1 0x96051e3b in objc_exception_throw #2 0x96772eeb in +[NSException raise:format:arguments:] #3 0x96772f2a in +[NSException raise:format:] #4 0x9689935e in -[NSKeyedArchiver encodeValueOfObjCType:at:] #5 0x96969a71 in -[NSValue encodeWithCoder:] #6 0x967e6d2d in _encodeObject #7 0x9685742d in -[NSKeyedArchiver _encodeArrayOfObjects:forKey:] #8 0x96806146 in -[NSDictionary(NSDictionary) encodeWithCoder:] #9 0x967e6d2d in _encodeObject #10 0x946caa14 in -[NSPrintInfo encodeWithCoder:] #11 0x967e6d2d in _encodeObject #12 0x967e64a8 in +[NSKeyedArchiver archivedDataWithRootObject:] #13 0x1f3e in main at main.m:19 however, the following doesn't crash: NSPrintInfo* sp = [NSPrintInfo sharedPrintInfo]; NSDictionary* dict = [sp dictionary]; NSPrintInfo* pi = [[NSPrintInfo alloc] initWithDictionary: dict]; [pi description]; NSData* piData = [NSKeyedArchiver archivedDataWithRootObject: pi]; filed as radar #: 6656704 ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Extreme Crashing from QT Movie Layers in Core Animation
I really really really hate to cross-post this, but I'm not sure which list to send this to. I have an extremely simple application playing three QuickTime movies in three QTMovieLayers. When the movie ends I simply restart it from within the notification callback. That and fading the opacity of the layers is the only remotely tricky thing I'm doing in the entire application, but a client is report *weird* crashes on the final machine the app will run on. (On my own, and other machines here and there it works just fine). The crash reports are at: http://www.sethwillits.com/temp/QTCoreAnimationCrashes.zip One of the weird things is that there are hundreds of threads in each report: Thread 43: 0 libSystem.B.dylib 0x919b04e2 semaphore_wait_trap + 10 1 QuickTimeH264.scalar 0x2831a6eb JVTCompEncodeFrame + 3088012 2 ??? 0x262762e0 0 + 640115424 The actual crashed thread and stack are different in almost every one of the 8 crashes I have. There's no pattern to it. One the stack traces for the *entire* crashed thread is: Thread 0 Crashed: 0 QuickTimeH264.scalar 0x28c55796 JVTCompEncodeFrame + 3284791 And it's thread 0 for crying out loud! I'd bet the farm that it's not my fault, so really the only thing I can think of is a crazy memory smashing bug somewhere in QT or Core Animation. Could anyone look at some of these and see if anything stands out? I really have no idea what to do. ;'-( -- Seth Willits ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: When to release an NSThread instance
if you don't need to reference the thread again you can just release it (and the target object used in initWithTarget:selector:object) as soon as you've called -(void)start on it. You are correct that the thread will exit when the method you are calling finishes and you don't need to call exit. When an NSThread is started it retains its target object and argument and the thread itself is retained presumably by some subsystem which manages threads. When the task is complete the target object and argument are released and the NSThread is released automatically too. So MyTargetObject *target = [ [ MyTargetObject alloc ] init ]; MyArgObject *arg = [ [ MyArgObject alloc ] init ]; NSThread *t = [ [ NSThread alloc ] initWithTarget:target selector:@selector( someMethod: ) object:arg ]; [ t start ]; // in any order you like [ target release ]; [ arg release ]; [ t release ]; should work fine. On Mar 7, 2009, at 7:55 AM, Stuart Malin wrote: I have a main thread method that allocates an NSThread object and inits with initWithTarget:selector:object. I then invoke the NSTask instance with -start. The specified selector is invoked, and there performs a background task that takes some time. When it is done, that method invokes a callback using performSelectorOnMainThread:withObject:waitUntilDone. That callback selector updates the applications U/I to reflect the outcome of the background task. After invoking the callback, the background task method cleans up, releases its autorelease pool, and then control reaches the end of the method. I am under the impression that having the method reach the end is sufficient to have the thread end. Is that correct? or do I need to invoke the thread instance with -exit ? Big question: how do I release the memory associated with the allocated task instance? I have two notions: 1) have the main thread callback autorelease the thread instance 2) have the thread autorelease itself at the end of the background task method after it invokes the callback (which is invokes with ...waitUntilDone:YES). I know I am treading in dangerous waters with threads... but the background activity can take many seconds, and I want the U/I responsive while the background activity is being performed. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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 r...@rols.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 arch...@mail-archive.com
Setting 'is package' bit when building a plug-in bundle?
I'm implementing a plug-in scheme based on Rainer Brockerhoff's design at http://cocoadevcentral.com/articles/68.php So far it's working fine, but I decided I wanted to use a particular extension for my plug-in files. When I do that, the bundles revert to looking like ordinary folders in the Finder, and can be simply opened like any folder. How can I set the 'package' setting when I build my bundle project so that it's treated as a single package? I can't see a build setting for doing this in the project, and simply adding 'LSTypeIsPackage' to my bundle's info.plist has no effect. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Extreme Crashing from QT Movie Layers in Core Animation
Seth Willits (sli...@araelium.com) on 2009-03-06 8:28 PM said: I'd bet the farm that it's not my fault, so really the only thing I can think of is a crazy memory smashing bug somewhere in QT or Core Animation. I assume you've tried with guard malloc, etc. then?... Try the hardware test cd for that Mac... maybe try a memory testing app? 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 arch...@mail-archive.com
Re: Setting 'is package' bit when building a plug-in bundle?
Use FSSetCatalogInfo and set the finderInfo (interpreted as a FolderInfo struct) and add the kHasBundle bit to the finderFlags of the FolderInfo. On Mar 6, 2009, at 8:31 PM, Graham Cox wrote: 'm implementing a plug-in scheme based on Rainer Brockerhoff's design at http://cocoadevcentral.com/articles/68.php So far it's working fine, but I decided I wanted to use a particular extension for my plug-in files. When I do that, the bundles revert to looking like ordinary folders in the Finder, and can be simply opened like any folder. How can I set the 'package' setting when I build my bundle project so that it's treated as a single package? I can't see a build setting for doing this in the project, and simply adding 'LSTypeIsPackage' to my bundle's info.plist has no effect. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Setting 'is package' bit when building a plug-in bundle?
This is the manual way to do it I might add. Not sure why the document type settings are not being used. Sometimes you need to rebuild launch services database. On Mar 6, 2009, at 9:02 PM, Michael Vannorsdel wrote: Use FSSetCatalogInfo and set the finderInfo (interpreted as a FolderInfo struct) and add the kHasBundle bit to the finderFlags of the FolderInfo. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Moving a window offscreen
On Fri, Mar 6, 2009 at 1:38 PM, Jonathan Dann j.p.d...@gmail.com wrote:
Hi All,
In my application I want to create an image of a document window as a
preview prior to displaying the window to the user. To obtain the CGImage of
a displayed window is simple enough using the CGWindow API as shown below:
- (CGImageRef)CGImage;
{
return CGWindowListCreateImage(CGRectNull,
kCGWindowListOptionIncludingWindow, [self windowNumber],
kCGWindowImageDefault);
}
The problem comes when trying to display the window initially at a far-off
position so I can create the image and the move the window onto the screen.
Setting the origin of the window to a point with large +ve or -ve ordinates
causes the window to appear at the edge of the main screen, partly shown.
Has anybody any experience with either a) rendering an entire window into a
bitmap instead of to the screen, or b) moving the window offscreen
completely? If b) is possible, would the above code work for such a window?
If you create the window with the defer flag set to NO, then the
NSWindow object will get a window server window even when it's not
actually ordered onto the screen. I *believe* that you will then be
able to capture it without ever displaying it so that it's visible to
the user, simply by not sending it an orderFront: or any similar
message.
As an alternative, use -dataWithPDFInsideRect: to generate an image.
This technique tends to be rather slow, though.
Mike
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Re: Setting 'is package' bit when building a plug-in bundle?
On Fri, Mar 6, 2009 at 10:31 PM, Graham Cox graham@bigpond.com wrote: So far it's working fine, but I decided I wanted to use a particular extension for my plug-in files. When I do that, the bundles revert to looking like ordinary folders in the Finder, and can be simply opened like any folder. Make sure that your plug-in UTI conforms to com.apple.package (or com.apple.bundle if more appropriate). If you need to manually inform the Finder of a directory's bundle status, use SetFile(1). --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 arch...@mail-archive.com
Fwd: NSOperation and NSAutoreleasePool
Hey all,
I've got a series of NSOperations which process some data for the user.
Each of them are created and supplied a large string.
In the operations start method the operation finds a suitable plugin
(using a plugin manager) to help the data analsysis. Once the plugin
is found, the string and delegate (which is the NSOperation instance)
is supplied for processing.
The operation then waits for the plugin to call the complete
delegate function, upon which time the operation saves the data and
cleans up.
So that's how it should work...
The problem i've got is when I supply the plugin the delegate:
[tPlugin processDataInFile:tFilePath withDelegate:self];
the plugin see's the delegate parameter as an NSAutorelease object.
i.e. if I NSLog the delegate object:
- (void)processDataInFile:(NSString *)tFilePath withDelegate:
(id)tDelegate {
self.delegate = [tDelegate retain];
NSLog(@Process data in %@ using delegate %@, tFilePath,
self.delegate);
I get the output:
Process data in 090227/123.txt using delegate NSAutoreleasePool:
0x187e10
when it should say something like:
Process data in 090227/123.txt using delegate
TMPSTProcessDropOperation: 0x175930
Any ideas what I could be doing wrong?
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Re: NSOperation and NSAutoreleasePool
It sounds like you have some sort of memory issue. Since you refer to things like NSAutorelease objects (which don't exist) and are apparently calling -retain on an object that you immediately assign to a property, I suggest you go back and re-read the Memory Management Guide. --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 arch...@mail-archive.com
Re: NSOperation and NSAutoreleasePool
this isn't making sense. You need to get to the bottom of this and not just throw in random code which *seems* to work. For a start how is delegate declared as a property? Show us the definition please, and are you synthesizing it or have you written code for the methods yourself? If you have declared it @property( readwrite, retain ) ... and synthesized it, then far from releasing it early that self.delegate = .. call will be retaining it, whereas your new assignment isn't. Your original code, self.delegate = [ tDelegate retain ] seems probably wrong if delegate is a retained property, that will just extra-retain it. Your new code delegate = tDelegate; doesn't retain it at all, one of the following should be the right way to do it self.delegate = tDelegate; // the property mutator does the retain for you delegate = [ tDelegate retain ]; // you do the retain and then assign it [ self setDelegate:tDelegate ]; // which is the same as the first of the three but clearer. Have you tried NSLog earlier on tDelegate before you set it into self.delegate, what is it then? Have you looked at this in the debugger to see what's going on? I'd have to agree with Kyle's suggestion to read the memory management documentation again. And single-step your way through those lines, look at the addreses of tDelegate and what ends up in self.delegate. On Mar 7, 2009, at 1:44 PM, Aaron Wallis wrote: I've actually found a workaround - it seems that if I use Obj-C 2.0 style properties the objects somehow get released earlier than they should. in my example I used the code: self.delegate = tDelegate where tDelegate is the delegate supplied through the method call. However, if I just use: delegate = tDelegate the script runs fine without a hitch... it must have something to do with the self.delegate property being set to retain or something? maybe it's causing the nsautoreleasepool to release early? On 07/03/2009, at 4:35 PM, Kyle Sluder wrote: It sounds like you have some sort of memory issue. Since you refer to things like NSAutorelease objects (which don't exist) and are apparently calling -retain on an object that you immediately assign to a property, I suggest you go back and re-read the Memory Management Guide. --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/rols%40rols.org This email sent to r...@rols.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 arch...@mail-archive.com
Re: NSOperation and NSAutoreleasePool
On 07/03/2009, at 5:02 PM, Roland King wrote: seems probably wrong if delegate is a retained property, that will just extra-retain it. Your new code delegate = tDelegate; doesn't retain it at all, one of the following should be the right way to do it Bearing in mind that typically delegates are NOT retained: http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaFundamentals/CommunicatingWithObjects/chapter_6_section_8.html#/ /apple_ref/doc/uid/TP40002974-CH7-SW16 --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSOperation and NSAutoreleasePool
On 07/03/2009, at 5:18 PM, Aaron Wallis wrote: [delegate release]; delegate = tDelegate; [delegate retain]; What if tDelegate == delegate? You release delegate, which *may* dealloc it. Then you assign tDelegate to it. If tDelegate == delegate (not uncommon that objects are the same) then you've assigned a stale pointer. The following - retain is too late. The correct pattern is always retain before release, i.e.: [tDelegate retain]; [delegate release]; delegate = tDelegate; Not sure if it has a bearing on your problem, but make sure the obvious bugs are fixed first. But in any case, you shouldn't be retaining your delegate. See the doc link I posted a second ago. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSOperation and NSAutoreleasePool
On Sat, Mar 7, 2009 at 12:18 AM, Aaron Wallis d2k...@gmail.com wrote:
The property was assigned as:
@property (retain) id delegate;
when I walk through the code (and log pretty much everything out)
I get the following:
- (void)processString:(NSString *)tString withDelegate:(id)tDelegate {
NSLog(@1. %@, tDelegate); // I get TMPSTProcessDropOperation:
0x175930
self.delegate = tDelegate;
NSLog(@2. %@, self.delegate); // I get NSAutoreleasePool: 0x187e10
[self.delegate doSomething];// I get -[NSAutoreleasePool
doSomething]: unrecognized selector sent to instance 0x187e10
I'm going to guess that maybe self is pointing to a deallocated
instance. Turn on NSZombie checking and see what happens:
http://www.cocoadev.com/index.pl?NSZombieEnabled
Another couple things. The delegate pattern says you don't retain the
delegate, to avoid retain cycles (loops). Also, it's a little unusual
to pass the delegate around to various methods. Usually there's one
setDelegate: call (or an Obj-C 2.0 property) and all subsequent
methods use that delegate.
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Re: NSOperation and NSAutoreleasePool
Thanks for pointing that one out, but it wasn't the cause for my problem. As for retaining the delegate, originally I wasn't, I just took the advice from Roland, but it doesn't break if I don't have it there :D On 07/03/2009, at 5:27 PM, Graham Cox wrote: On 07/03/2009, at 5:18 PM, Aaron Wallis wrote: [delegate release]; delegate = tDelegate; [delegate retain]; What if tDelegate == delegate? You release delegate, which *may* dealloc it. Then you assign tDelegate to it. If tDelegate == delegate (not uncommon that objects are the same) then you've assigned a stale pointer. The following - retain is too late. The correct pattern is always retain before release, i.e.: [tDelegate retain]; [delegate release]; delegate = tDelegate; Not sure if it has a bearing on your problem, but make sure the obvious bugs are fixed first. But in any case, you shouldn't be retaining your delegate. See the doc link I posted a second ago. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
