Re: Tracking Multiple Touches For Appropriate Label
On Dec 7, 2009, at 7:08 pm, Chunk 1978 wrote: is this suppose to work for multiple touches where one touch is already present, then another touches the screen? Yes, it does; tested in a working application. it's not working for me. each time i touch the screen and add an object to the myTouches array the return count always returns 1, no matter how many fingers i already have touching the screen. Then despite your original assertion, it is likely that you haven't set multipleTouchEnabled on your view. mmalc ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Tracking Multiple Touches For Appropriate Label
On Dec 8, 2009, at 12:38 am, mmalc Crawford wrote: is this suppose to work for multiple touches where one touch is already present, then another touches the screen? Yes, it does; tested in a working application. it's not working for me. each time i touch the screen and add an object to the myTouches array the return count always returns 1, no matter how many fingers i already have touching the screen. Then despite your original assertion, it is likely that you haven't set multipleTouchEnabled on your view. I misread the reply. Per the documentation for touchesBegan:withEvent:, touches A set of UITouch instances that represent the touches for the starting phase of the event represented by event. http://developer.apple.com/iphone/library/documentation/UIKit/Reference/UIResponder_Class/Reference/Reference.html#//apple_ref/occ/instm/UIResponder/touchesBegan:withEvent: (see also http://developer.apple.com/iphone/library/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/EventHandling/EventHandling.html#//apple_ref/doc/uid/TP40007072-CH9-SW15). If you already have one finger touching the screen, and you add another, then 'touches' will only contain one touch. If you want the coordinates of all the current touches that happen to be present when another touch is added, then you need to get allTouches from the event. mmalc ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Tracking Multiple Touches For Appropriate Label
thanks for the links. i'm really surprised with how complicated this is. i'm also equally surprised that there is not a lot of small sample code online On Tue, Dec 8, 2009 at 3:50 AM, mmalc Crawford mmalc_li...@me.com wrote: On Dec 8, 2009, at 12:38 am, mmalc Crawford wrote: is this suppose to work for multiple touches where one touch is already present, then another touches the screen? Yes, it does; tested in a working application. it's not working for me. each time i touch the screen and add an object to the myTouches array the return count always returns 1, no matter how many fingers i already have touching the screen. Then despite your original assertion, it is likely that you haven't set multipleTouchEnabled on your view. I misread the reply. Per the documentation for touchesBegan:withEvent:, touches A set of UITouch instances that represent the touches for the starting phase of the event represented by event. http://developer.apple.com/iphone/library/documentation/UIKit/Reference/UIResponder_Class/Reference/Reference.html#//apple_ref/occ/instm/UIResponder/touchesBegan:withEvent: (see also http://developer.apple.com/iphone/library/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/EventHandling/EventHandling.html#//apple_ref/doc/uid/TP40007072-CH9-SW15). If you already have one finger touching the screen, and you add another, then 'touches' will only contain one touch. If you want the coordinates of all the current touches that happen to be present when another touch is added, then you need to get allTouches from the event. mmalc ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/chunk1978%40gmail.com This email sent to chunk1...@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: Tracking Multiple Touches For Appropriate Label
On 08/12/2009, at 8:58 PM, Chunk 1978 wrote: i'm really surprised with how complicated this is. Yes, because a multi-touch gesture-based events system is child's play, really. Makes you wonder why Apple's OS is the only one to have it built in, since any half-decent programmer could just knock one off before breakfast and give themselves the rest of the day off. --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
NSURLConnection Problem Inside QuickLook Generator
I'm writing a QuickLook plugin that, as part of the preview process, makes an http call to a (localhost) server to obtain data that is then used to generate the preview image. The code below works fine outside the QuickLook architecture, as a standard Cocoa application. But as soon as I move the (exact) same code over to the QuickLook plugin, a call to the server only returns (null) response, and (null) data. The docs indicate that this means the connection is failing. But why o why is it failing? If I print the contents of the NSError object to the console, I get the following message: 09-12-08 3:02:05 AM quicklookd[37158] error: Error Domain=NSPOSIXErrorDomain Code=1 UserInfo=0x10049d880 The operation couldn’t be completed. Operation not permitted It appears that sendSynchronousRequest:... is not permitted. So why is this operation not permitted? And is there a workaround? Any help would be most appreciated. NSURL * url = [NSURL URLWithString:urlString]; NSMutableURLRequest * request = [NSMutableURLRequest requestWithURL:url]; [request setHTTPMethod:@POST]; [request setHTTPBody:[params dataUsingEncoding:NSUTF8StringEncoding]]; [request setTimeoutInterval:5]; NSError * error; NSURLResponse * response; NSData * data = [NSURLConnection sendSynchronousRequest:request returningResponse:response error:error]; Best, Dalmazio ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: NSDecimal chokes on very small numbers
My work with NSDecimal values has turned up several bugs and a documentation
error. Most of these bugs are extant under Mac OS X 10.5.7, and are FIXED
under Mac OS X 10.6 (10A380).
For the record:
All bugs are extant under Mac OS X 10.5.7
Extant under Mac OS X 10.6 (10A380):
NSDecimalPower() chokes on small numbers
NSDecimalIsNotANumber() incorrect documentation
FIXED under Mac OS X 10.6 (10A380):
NSDecimalAdd() bug
NSDecimalSubtract() bug
NSDecimalCompare() bug
NSDecimalNormalize() drops very small fraction
NSDecimalAdd() and NSDecimalSubtract() return incorrect results when adding
or subtracting a very small number to or from a larger number.
NSDecimalCompare() incorrectly compared NSDecimal one with NSDecimal
1+1e-34, returning NSOrderedSame when NSOrderedAscending was expected.
NSDecimalNormalize() normalized 1+1e-34 to 1.0 .
These issues are extant under Mac OS X 10.5.7 and FIXED under Mac OS X 10.6
(10A380)
Not fixed is the NSDecimalPower() bug already noted. Also, the documentation
for NSDecimalIsNotANumber() has the return values YES and NO reversed.
Bug reports:
NSDecimalPower(): 7452166
NSDecimalIsNotANumber() documentation: 7452179
Tom Bernard
tombern...@bersearch.com
on 11/21/09 7:41 AM, Tom Bernard wrote:
Before reporting this as a bug to Apple's Bug Reporter, I would like
feedback from the community. I am working in Leopard. Has this been fixed in
Snow Leopard? Is there something else I am overlooking?
NSDecimalPower returns an unexpected result when I raise 1e-35 to the 4th
power. I understand that the result is too small to be supported by
NSDecimal. The returned result:
100\
00 and err = NSCalculationNoError
does not make sense to me. I was expecting a return of 0 and an err =
NSCalculationLossOfPrecision.
To reproduce:
1) create a new Foundation Tool and implement the following code:
#import Foundation/Foundation.h
#define NSDStr(x) NSDecimalString(x, nil)
int main (int argc, const char * argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
NSCalculationErrorerr;
// NSDecimalPower bug
// pow(0.1, 4);
// result is less than minimum NSDecimal; NSDecimalPower should return 0
with err = NSCalculationLossOfPrecision
// (NSCalculationOverflow, NSCalculationUnderflow also understandable)
//
// instead returns
1000
0
// with err = NSCalculationNoError
NSDecimaloneEminusThirtyFive, oneEminusThirtyFiveToFourthPower;
NSString*oneEminusThirtyFiveStr,
*oneEminusThirtyFiveToFourthPowerStr;
NSUIntegern;
n = 4;
oneEminusThirtyFive =[[NSDecimalNumber decimalNumberWithMantissa:1
exponent:-35 isNegative:NO] decimalValue];
err =
NSDecimalPower(oneEminusThirtyFiveToFourthPower, oneEminusThirtyFive, n,
NSRoundPlain);
oneEminusThirtyFiveStr =NSDStr(oneEminusThirtyFive);
oneEminusThirtyFiveToFourthPowerStr =
NSDStr(oneEminusThirtyFiveToFourthPower);
printf(oneEminusThirtyFive = %s\n,
[oneEminusThirtyFiveStr UTF8String]);
printf(oneEminusThirtyFiveToFourthPower = %s\n,
[oneEminusThirtyFiveToFourthPowerStr UTF8String]);
printf(err = %u\n,err);
printf(\n);
[pool drain];
return 0;
}
The above code outputs:
oneEminusThirtyFive = 0.001
oneEminusThirtyFiveToFourthPower =
1000
0
err = 0
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Binding and Observers
I have a document based app.
MyDocument.h has:
IBOutletIKImageView *myIkView;
MyDocument.nib has an IKImageView and an NSSlider with it's value bound to
myIkView.rotationAngle.
Works perfectly.
But when I closed the window I got an exception complaining about some
observers not beeing removed.
So I added:
- (void)windowWillClose:(NSNotification *)notification
{
id f = [ ikView observationInfo ];
NSString *oi = [ f description ];
BOOL ok;
NSString *obs = @Observer:;
NSString *kpa = @Key path:;
unsigned long long uuu;
NSString *keyPath1;
NSScanner *u = [ NSScanner scannerWithString: oi ];
[ u setCharactersToBeSkipped: [ NSCharacterSet
whitespaceAndNewlineCharacterSet ] ];
ok = [ u scanUpToString: obs intoString: NULL ];
ok = [ u scanString: obs intoString: NULL ];
ok = [ u scanHexLongLong: uuu ];
ok = [ u scanUpToString: kpa intoString: NULL ];
ok = [ u scanString: kpa intoString: NULL ];
ok = [ u scanUpToString: @, intoString: keyPath1 ];
[ myIkView removeObserver: (id)uuu forKeyPath: keyPath1 ];
}
I have some nagging feeling that this is NOT the most straightforward way to
get rid of this exception.
But:
After windowWillClose: has successfully finished without any exceptions I get
an EXC_BAD_ACCESS which I don't know what to do about:
#0 0x7fff83d6311c in objc_msgSend ()
#1 0x7fff886d150e in -[NSKeyValueNestedProperty
object:didRemoveObservance:recurse:] ()
#2 0x7fff886d0d47 in -[NSObject(NSKeyValueObserverRegistration)
_removeObserver:forProperty:] ()
#3 0x7fff886d0c2b in -[NSObject(NSKeyValueObserverRegistration)
removeObserver:forKeyPath:] ()
#4 0x7fff83fd02e4 in -[NSBinder _updateObservingRegistration:] ()
#5 0x7fff841c09a8 in -[NSBinder
releaseConnectionWithSynchronizePeerBinders:] ()
#6 0x7fff845964bd in -[NSValueBinder
releaseConnectionWithSynchronizePeerBinders:] ()
#7 0x7fff83faf556 in -[NSObject(_NSBindingAdaptorAccess)
_releaseBindingAdaptor] ()
#8 0x7fff8400798b in -[NSView _releaseBindingAdaptor] ()
#9 0x7fff84006e09 in -[NSView _finalizeWithReferenceCounting] ()
#10 0x7fff840064fc in -[NSView dealloc] ()
#11 0x7fff840cef4f in -[NSControl dealloc] ()
#12 0x7fff8560d246 in _CFAutoreleasePoolPop ()
#13 0x7fff886d62f8 in -[NSAutoreleasePool drain] ()
#14 0x7fff83fa27db in -[NSApplication run] ()
#15 0x7fff83f9b468 in NSApplicationMain ()
#16 0x0001297e in main (argc=1, argv=0x7fff5fbff588) at
/Volumes/เม่น/Users/gerriet/Source/Stuff 10.6.2/iMatsch Viewer/main.m:13
Obviously I am missing something fundamental how to properly close a window.
Any help much appreciated.
10.6.2; garbage collection unsupported.
Kind regards,
Gerriet.
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Re: Tracking Multiple Touches For Appropriate Label
i meant that i find it complicated compared to basic single touches or gestures. it's making my head swim. since it's something i would imagine lots of developers have to deal with i'm mostly surprised that apple hasn't made the process more convenient, but instead the docs state that i have to use core foundation dictionary to pull this off... i mean, certainly i'm not the sharpest developer around, and for all i know it may be impossible to make the process more convenient, but that's the element of surprise for you. On Tue, Dec 8, 2009 at 5:11 AM, Graham Cox graham@bigpond.com wrote: On 08/12/2009, at 8:58 PM, Chunk 1978 wrote: i'm really surprised with how complicated this is. Yes, because a multi-touch gesture-based events system is child's play, really. Makes you wonder why Apple's OS is the only one to have it built in, since any half-decent programmer could just knock one off before breakfast and give themselves the rest of the day off. --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: NSURLConnection Problem Inside QuickLook Generator
I'm pretty certain Apple disallows use of non-file URLs in Quick Look generators for the simple reason that a generator should run as quickly as possible. Generators should also be fairly standalone - why do you need to POST to generate a preview/thumbnail? On 8 Dec 2009, at 10:13, Dalmazio Brisinda wrote: I'm writing a QuickLook plugin that, as part of the preview process, makes an http call to a (localhost) server to obtain data that is then used to generate the preview image. The code below works fine outside the QuickLook architecture, as a standard Cocoa application. But as soon as I move the (exact) same code over to the QuickLook plugin, a call to the server only returns (null) response, and (null) data. The docs indicate that this means the connection is failing. But why o why is it failing? If I print the contents of the NSError object to the console, I get the following message: 09-12-08 3:02:05 AM quicklookd[37158] error: Error Domain=NSPOSIXErrorDomain Code=1 UserInfo=0x10049d880 The operation couldn’t be completed. Operation not permitted It appears that sendSynchronousRequest:... is not permitted. So why is this operation not permitted? And is there a workaround? Any help would be most appreciated. NSURL * url = [NSURL URLWithString:urlString]; NSMutableURLRequest * request = [NSMutableURLRequest requestWithURL:url]; [request setHTTPMethod:@POST]; [request setHTTPBody:[params dataUsingEncoding:NSUTF8StringEncoding]]; [request setTimeoutInterval:5]; NSError * error; NSURLResponse * response; NSData * data = [NSURLConnection sendSynchronousRequest:request returningResponse:response error:error]; Best, Dalmazio ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cocoadev%40mikeabdullah.net This email sent to cocoa...@mikeabdullah.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: IKImageBrowserView image quality changing with redraw
On 8 Dec 2009, at 00:01, Adam Berger wrote: I'm trying to move from a custom view to an IKImageBrowserView in a project, and running into a somewhat odd problem. Context: my IKImageBrowserItems are IKImageBrowserNSImageRepresentationType, backed by a relatively large (~600x800) NSImage. When first drawn, at any scale factor, this looks great. However, as soon as a redraw (not a reload!) occurs, the quality goes to hell. For example, clicking in the browserview will cause this problem instantly. It's as if it's deciding all of a sudden to fall back to a cached image of much lower quality. Scrolling seems not to trigger a redraw of this type; so if a large view containing as-first-drawn high quality images is clicked, only the currently visible thumbnails will get degraded, and scrolling can then present a mix of degraded and full-quality images. Needless to say, this huge a reduction in image quality is not acceptable. How can this be prevented? [Side note: I've seen reference to the prefetching behavior of IKImageBrowserView is particularly gnarly for NSImages as all the preload must be done on main thread since NSImage is not thread safe. With this in mind, what's the preferred type for IKImageBrowserItem backings?] NSImage is threadsafe as long as you're not mutating it. http://developer.apple.com/mac/library/releasenotes/cocoa/AppKit.html NSImage: Clarifying the contract for threading___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: NSOutlineView expand-by-default with NSTreeController
On Dec 5, 2009, at 6:11 PM, Jason Foreman wrote: [[treeController arrangedObjects] childNodes]; Iterate over this collection and find nodes where [node representedObject] is equal to your newly inserted objects. Then you can pass this NSTreeNode instance to -[NSOutlineView exandItem:]. This isn't terribly clean, and it might fall down if you have a large number of items in your tree controller, but it works for what I need and might work for you. Thanks, Jason. Unfortunately, the content can still be fairly large, so I’m not sure about how the performance of a brute force method like this will be. On the other hand, premature optimization is the root of all evil, and this is really easy to implement. It might not be a bad idea to just do this for now, don’t worry about the inefficiency, see how it works for the content sizes that a human could deal with, and just revisit the question if it ends up being a practical problem. So if anybody has a cleaner solution (which I’m guessing by the silence they don’t), I’m all ears. Otherwise I’ll try this, and just fall back to rewriting NSTreeController myself if the performance doesn’t work out. (Is there any open source NSTreeController reimplementation out there?) Best, Benjamin Rister___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
Unable to write in InfoPlist.strings file from cpp
Hi I am trying to write CFBundleGetInfoString into InfoPlist.strings from cpp code and It is writing successfully. But when i use the InfoPlist.strings in xcode, it gives me a build error /usr/bin/iconv: English.lproj/InfoPlist.strings:1:82: incomplete character or shift sequence Now if i open the .strings file in dashcode (or any other text editor), it shows me the required text correctly, but when i open the same in xcode - it show something similar to chinese/japanese script. Dashcode shows: CFBundleGetInfoString = bla bla bla; Xcode shows: 屲屮䍆䉵湤汥䝥瑉湦潓瑲楮朠㴠≍慩求牯睳敲′⸳⁐䕎呁Ⱐ䍯 Any idea what is happening here?? Advance thanks. -Parimal Das ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: IKImageBrowserView image quality changing with redraw
Hi Adam, Is this on Leopard or Snowleopard ? I just tried to load images from /System/Library/Desktop Pictures in an IKImageBrowserView using the NSImage representation. They appears just fine for me (SnowLeopard). [Side note: I've seen reference to the prefetching behavior of IKImageBrowserView is particularly gnarly for NSImages as all the preload must be done on main thread since NSImage is not thread safe. ?] This is true on Leopard, but not on SnowLeopard. With this in mind, what's the preferred type for IKImageBrowserItem backings If you images exists on the filesystem, it is preferable to use a path or url based representation. Otherwise, there is no preferred representation. -- Thomas On Dec 8, 2009, at 1:01 AM, Adam Berger wrote: I'm trying to move from a custom view to an IKImageBrowserView in a project, and running into a somewhat odd problem. Context: my IKImageBrowserItems are IKImageBrowserNSImageRepresentationType, backed by a relatively large (~600x800) NSImage. When first drawn, at any scale factor, this looks great. However, as soon as a redraw (not a reload!) occurs, the quality goes to hell. For example, clicking in the browserview will cause this problem instantly. It's as if it's deciding all of a sudden to fall back to a cached image of much lower quality. Scrolling seems not to trigger a redraw of this type; so if a large view containing as-first-drawn high quality images is clicked, only the currently visible thumbnails will get degraded, and scrolling can then present a mix of degraded and full-quality images. Needless to say, this huge a reduction in image quality is not acceptable. How can this be prevented? [Side note: I've seen reference to the prefetching behavior of IKImageBrowserView is particularly gnarly for NSImages as all the preload must be done on main thread since NSImage is not thread safe. With this in mind, what's the preferred type for IKImageBrowserItem backings?] Adam ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/tgoossens%40mac.com This email sent to tgooss...@mac.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: Unable to write in InfoPlist.strings file from cpp
On Dec 8, 2009, at 5:25 AM, Parimal Das wrote: I am trying to write CFBundleGetInfoString into InfoPlist.strings from cpp code and It is writing successfully. But when i use the InfoPlist.strings in xcode, it gives me a build error /usr/bin/iconv: English.lproj/InfoPlist.strings:1:82: incomplete character or shift sequence Now if i open the .strings file in dashcode (or any other text editor), it shows me the required text correctly, but when i open the same in xcode - it show something similar to chinese/japanese script. Dashcode shows: CFBundleGetInfoString = bla bla bla; Xcode shows: 屲屮䍆䉵湤汥䝥瑉湦潓瑲楮朠㴠≍慩求牯睳敲′⸳⁐䕎呁Ⱐ䍯 Xcode is probably reading InfoPlist.strings with the wrong text encoding. Most likely, your code wrote UTF-8 that Xcode is reading as UTF-16. Open your project in Xcode, Get Info on each InfoPlist.strings file, and set General File Encoding to the encoding your code writes. When Xcode asks what to do with the existing file, choose Reinterpret. -- Greg Parker gpar...@apple.com Runtime Wrangler ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Informations about Cocoa implementations of VDCP and MOS protocols
Hello to the list ! I'm wondering if anyone here ever came across of Cocoa or Objective-C implementations of VDCP and MOS protocols ? Google shows no results that would give me any references and examples about how could (should) this be done. I guess that nobody tried to make an open source version yet. There are companies that have their proprietary implementations but ... So, I would very much appreciate if anyone have any kind of documentation (beside official MOS protocol from their website), references (websites), examples or anything that could help me learning how to implement these protocols in my Cocoa application. Thanks in advance. Bye Mario Kušnjer mario.kusn...@sb.t-com.hr +385957051982 ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
Slow performance of adding MIDI Events to MusicTrack?
Hi all, I've been working on a MIDI application and I'm just creating a test track of 10,000,000 events spread over 46 notes. Once created the application stores the MusicSequence as a file. I traditionally use large data sets to ensure the applications are written to deliver fast processing and I've done it this time to ensure latency is kept to a minimum for MIDI. The problem I have is that the MusicTrackNewMIDINoteEvent method is exceptionally slow - in the order of 30 minutes for adding 100,000 events. All the program is doing is 10M loops of adding note events into the MusicTrack. I've sampled the application running and it spends 100% of it's time within std::vector operations - iterator and copy. So I'm assuming it adds the event by iterating through the entire current set until it finds the correct timestamp location and then makes a gap my copying the data before inserting it. It seems a little barking mad for Apple to use a linear search routine and I would suspect a hashed based dense key storage system would have been better? This would slow down with more additions! Is this a known issue that others have experienced? I'm using SL, with the compilation running Release x86_64 in addition to auto-vec SSE optimisations on a MBP3,1 2.4GHz with 4GB. Warmest regards, Nick.___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Slow performance of adding MIDI Events to MusicTrack?
NickK ha scritto: I've sampled the application running and it spends 100% of it's time within std::vector operations - iterator and copy. So I'm assuming it adds the event by iterating through the entire current set until it finds the correct timestamp location and then makes a gap my copying the data before inserting it. It seems a little barking mad for Apple to use a linear search routine and I would suspect a hashed based dense key storage system would have been better? This would slow down with more additions! Is this a known issue that others have experienced? yes, I've noticed the same thing. Luckily, I've never had to add that many events/notes, so I could bear to wait for some seconds. -- Simone Tellini http://www.tellini.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: Slow performance of adding MIDI Events to MusicTrack?
Ok, I've submitted it as a performance bug to Apple. It's a quick win fix to be honest with a large effect on their MIDI users. I should try a test using MIDIEndPoint attached to the MusicTrack to add the note events instead.. Nick On 8 Dec 2009, at 14:59, Simone Tellini wrote: NickK ha scritto: I've sampled the application running and it spends 100% of it's time within std::vector operations - iterator and copy. So I'm assuming it adds the event by iterating through the entire current set until it finds the correct timestamp location and then makes a gap my copying the data before inserting it. It seems a little barking mad for Apple to use a linear search routine and I would suspect a hashed based dense key storage system would have been better? This would slow down with more additions! Is this a known issue that others have experienced? yes, I've noticed the same thing. Luckily, I've never had to add that many events/notes, so I could bear to wait for some seconds. -- Simone Tellini http://www.tellini.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/cocoadev%40adrenalin-junkie.net This email sent to cocoa...@adrenalin-junkie.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Tracking Multiple Touches For Appropriate Label
On Dec 8, 2009, at 3:49 am, Chunk 1978 wrote: i meant that i find it complicated compared to basic single touches or gestures. It's not clear what's complicated. You typically want to know when touches began, moved, and ended, and there are methods to inform you when each of these things happen (and another to let you know that they've been interrupted). This is a multi-touch system, so just because one touch began it doesn't mean all did. So in some cases at least (including, it seems, yours) you need a means to get information about other touches. The methods therefore all tell you: Here are the touches that have just entered the phase you're interested in in this method, and here's a data structure (the UIEvent object) that gives you a way to get information about all the current touches. It's difficult to see how this could be simpler. About the only simplification could be that the methods could take a single parameter... there are a couple of scenarios for this. The methods could just pass the UIEvent object -- but then you'd have to iterate through its touches to find the ones that are in the phase you're interested in. Or you could have two (or three) methods per phase, e.g. touchesBegan: and touchesBeganInEvent: (and maybe again touchesBegan:withEvent:), but then you're making things more complicated again with multiple override points. mmalc ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
File system file renaming question...
This question is not specifically about Cocoa programming but I hope that some Mac OS X experts out there can give me an answer. I sent an attached photo to my daughter so that she could print it out using Costco print services. I sent it at high resolution, the photo image was 1.6 MB. It seems that Mac mail changed the resolution to a more web friendly size of about 64 K with much reduced resolution. So, I thought that a way to get around this was to change the file type (extension) of the image file to something other then .jpg such as .dat (and, I tried .zz, .q, and null). However, the file was still recognized and interpreted as a jpeg file and treated in the same manner by mail (and, also by the finder that displayed the image). So, it looks like Mac OS X is interpreting the file based on contents and not based on file extension. This seems to be a very wrong thing to do in my opinion. Does anyone know of a way to turn this off or is this considered a feature for some ease-of-use aspect of OS X?___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: odd problems with NSData / OpenGL
On Dec 7, 2009, at 11:46 PM, Henri Häkkinen wrote: I have a simple Cocoa document-based application, which uses a custom NSOpenGLView derived class. This view object has a reference to the document object (this binding is set in the nib file), and the document has a reference to a Mesh class. Mesh loads vertices and indexed triangular faces from a file, and stores them as NSData objects containing vertex arrays, intended to be used with glVertexPointer etc. OpenGL calls. The mesh is drawn in drawRect: of the view class using OpenGL. First call of this method works fine and the mesh is rendered. However, after calling setNeedsDisplay (for example in reshape method or anywhere) the program crashes with EXC_BAD_ACCESS when the drawRect method is trying to access the NSData objects of the mesh. Using the debugger I can see that the pointers (both the document reference, mesh reference and the NSData pointers inside the mesh) remain the same between the calls of drawRect:, as in nothing seems to get overwritten accidentally or anything. More than likely this is a memory management problem. Specifically, you probably aren't claiming ownership of the NSData object that you store in your instance variable, and thus it is being deallocated out from under you. -- 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: File system file renaming question...
Am 08.12.2009 um 17:26 schrieb Phil Hystad: This question is not specifically about Cocoa programming but I hope that some Mac OS X experts out there can give me an answer. I sent an attached photo to my daughter so that she could print it out using Costco print services. I sent it at high resolution, the photo image was 1.6 MB. It seems that Mac mail changed the resolution to a more web friendly size of about 64 K with much reduced resolution. So, I thought that a way to get around this was to change the file type (extension) of the image file to something other then .jpg such as .dat (and, I tried .zz, .q, and null). However, the file was still recognized and interpreted as a jpeg file and treated in the same manner by mail (and, also by the finder that displayed the image). So, it looks like Mac OS X is interpreting the file based on contents and not based on file extension. This seems to be a very wrong thing to do in my opinion. Why exactly does this seem very wrong? After all, it's the content that matters, not the file name or extension... A picture is a picture and won't become a text document or a sound just because you change the extension! Does anyone know of a way to turn this off or is this considered a feature for some ease-of-use aspect of OS X? When you add pictures to a mail message in Apple Mail, there's a little popup menu in the lower right corner of the mail message window that allows you to pick the image size. IIRC, one entry is Original size... /jum ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: NSURLConnection Problem Inside QuickLook Generator
On Dec 8, 2009, at 2:13 AM, Dalmazio Brisinda wrote: I'm writing a QuickLook plugin that, as part of the preview process, makes an http call to a (localhost) server to obtain data that is then used to generate the preview image. The code below works fine outside the QuickLook architecture, as a standard Cocoa application. But as soon as I move the (exact) same code over to the QuickLook plugin, a call to the server only returns (null) response, and (null) data. The docs indicate that this means the connection is failing. But why o why is it failing? My understanding is Quicklook plugins are not allowed to make network connections due to sandbox restrictions. -- 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: Tracking Multiple Touches For Appropriate Label
this is what i have so far, but i have no idea how to write the
touchesEnded method so that the appropriate label will clear. so if 3
fingers are touching the screen and displaying their different
coordinates, if the 2nd finger that was pressed ends its touch, the
2nd label will clear (Touch 2: {0, 0}) while the 1st and 3rd
continue to track. clearly i'm lost, i apologize.
- (void)viewDidLoad
{
labelsArray = [[NSArray alloc] initWithObjects:touchLabe1,
touchLabe2, touchLabe3, nil];
touchesArray = [[NSMutableArray alloc] initWithCapacity:3];
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
for (UITouch *touch in touches)
[touchesArray addObject:touch];
for (NSUInteger i = 0; i 3; i++)
{
UILabel *aLabel = [labelsArray objectAtIndex:i];
if (i [touchesArray count])
{
UITouch *touch = [touchesArray objectAtIndex:i];
NSString *point = NSStringFromCGPoint([touch
locationInView:self.view]);
aLabel.text = [NSString
stringWithFormat:@Title %i:\n%@, i+1, point];
}
}
}
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
for (NSUInteger i = 0; i 3; i++)
{
UILabel *aLabel = [labelsArray objectAtIndex:i];
if (i [touchesArray count])
{
UITouch *touch = [touchesArray objectAtIndex:i];
NSString *point = NSStringFromCGPoint([touch
locationInView:self.view]);
aLabel.text = [NSString
stringWithFormat:@Title %i:\n%@, i+1, point];
}
}
}
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
//??
}
On Tue, Dec 8, 2009 at 11:01 AM, mmalc Crawford mmalc_li...@me.com wrote:
On Dec 8, 2009, at 3:49 am, Chunk 1978 wrote:
i meant that i find it complicated compared to basic single touches or
gestures.
It's not clear what's complicated.
You typically want to know when touches began, moved, and ended, and there
are methods to inform you when each of these things happen (and another to
let you know that they've been interrupted).
This is a multi-touch system, so just because one touch began it doesn't mean
all did. So in some cases at least (including, it seems, yours) you need a
means to get information about other touches. The methods therefore all tell
you: Here are the touches that have just entered the phase you're interested
in in this method, and here's a data structure (the UIEvent object) that
gives you a way to get information about all the current touches.
It's difficult to see how this could be simpler. About the only
simplification could be that the methods could take a single parameter...
there are a couple of scenarios for this. The methods could just pass the
UIEvent object -- but then you'd have to iterate through its touches to find
the ones that are in the phase you're interested in. Or you could have two
(or three) methods per phase, e.g. touchesBegan: and touchesBeganInEvent:
(and maybe again touchesBegan:withEvent:), but then you're making things more
complicated again with multiple override points.
mmalc
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Big memory/time consumption in NSTreeController KVO GC
I have a NSTreeController displayed via an NSOutlineView. It’s set up to expand items by default as they’re added to the model. This is all on Snow Leopard. When a bunch of items (some thousands) are added and removed from the model, there’s a large memory spike (multi-hundred MB) almost entirely of Malloc 16.50 KB blocks, and the bulk of the CPU time is being spent in libauto. The stack trace of most of the memory allocations is: ... 12 libSystem.B.dylib _dispatch_call_block_and_release 11 libauto.dylib auto_collection_work(Auto::Zone*) 10 libauto.dylib auto_collect_internal(Auto::Zone*, unsigned int) 9 libauto.dylib Auto::Zone::collect(bool, void*, unsigned long long*) 8 libauto.dylib weak_call_callbacks 7 Foundation NSKeyValueObservanceBecameUseless 6 Foundation _NSKeyValueRemoveUselessObservances 5 Foundation _NSKeyValueObservationInfoCreateByCollecting 4 Foundation -[NSKeyValueObservationInfo _initWithObservances:count:] 3 Foundation -[NSConcretePointerArray addPointer:] 2 libauto.dylib auto_assign_weak_reference 1 libauto.dylib weak_register 0 libauto.dylib append_referrer_no_lock(weak_referrer_array_t*, void**, auto_weak_callback_block*) Almost all of the rest are: ... 21 MyProject -[MyModelObject addChild:] 20 Foundation NSKVOInsertObjectAtIndexAndNotify 19 Foundation -[NSObject(NSKeyValueObserverNotification) didChange:valuesAtIndexes:forKey:] 18 Foundation NSKeyValueDidChange 17 AppKit -[NSTreeControllerTreeNode observeValueForKeyPath:ofObject:change:context:] 16 AppKit -[NSTreeControllerTreeNode updateChildNodesForKeyPath:affectedIndexPaths:] 15 AppKit -[NSTreeControllerTreeNode updateChildNodesForKeyPath:affectedIndexPaths:] 14 Foundation -[NSObject(NSKeyValueObserverNotification) didChangeValueForKey:] 13 Foundation NSKeyValueDidChange 12 Foundation -[NSKeyValueNestedProperty object:withObservance:didChangeValueForKeyOrKeys:recurse:forwardingValues:] 11 Foundation -[NSObject(NSKeyValueObserverRegistration) addObserver:forKeyPath:options:context:] 10 Foundation -[NSObject(NSKeyValueObserverRegistration) _addObserver:forProperty:options:context:] 9 Foundation -[NSKeyValueUnnestedProperty object:didAddObservance:recurse:] 8 Foundation -[NSKeyValueNestedProperty object:didAddObservance:recurse:] 7 Foundation -[NSObject(NSKeyValueObserverRegistration) addObserver:forKeyPath:options:context:] 6 Foundation -[NSObject(NSKeyValueObserverRegistration) _addObserver:forProperty:options:context:] 5 Foundation _NSKeyValueObservationInfoCreateByAdding 4 Foundation -[NSKeyValueObservationInfo _initWithObservances:count:] 3 Foundation -[NSConcretePointerArray addPointer:] 2 libauto.dylib auto_assign_weak_reference 1 libauto.dylib weak_register 0 libauto.dylib append_referrer_no_lock(weak_referrer_array_t*, void**, auto_weak_callback_block*) After every item is eventually removed (aside from one remaining one in the root, which was already there at the start), the app is still using 48MB RPRVT. This was 6MB at the start of the process, in this same model state as it ended. heap -guessNonObjects shows most of the memory as non-objects in dictionaries and arrays (e.g. NSCFDictionary[48]), and NSConcretePointerArrays, all in the auto zone. The only references to some of these key function names I could find on the web were in the libauto sources, and no mention at all in mailing lists, so it doesn’t seem like anybody else has posted about this before. Any ideas about why NSTreeController’s KVO is taking up so much memory/CPU with bookkeeping? Any suggestions for working around the problem? Thanks, Benjamin Rister___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: File system file renaming question...
On 8 Dec 2009, at 16:26, Phil Hystad wrote: This question is not specifically about Cocoa programming but I hope that some Mac OS X experts out there can give me an answer. Then why not send it to an appropriate mailing list, like macosx-talk? Or post it in Apple's voluminous Support forums (which I guess you probably haven't searched since you can't be the first person to ask this question). This list is for Cocoa-related things *only*. Not for Cocoa questions except when you have a non-Cocoa question you think we might be able to answer. Kind regards, Alastair. -- http://alastairs-place.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Customize the line's color that separates the window content from the title bar?
Hi, I'd like to customize the color of the line that separates a window's content area from its title bar. I've uploaded a screenshot of the line I mean here: http://i48.tinypic.com/r2q9eu.png . How would I do this, if possible without having to subclass NSWindow? Thanks, -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: NSURLConnection Problem Inside QuickLook Generator
hi- On Dec 8, 2009, at 11:48 AM, David Duncan wrote: My understanding is Quicklook plugins are not allowed to make network connections due to sandbox restrictions. We ran into this same problem when QL plugins were first included with the OS. thanks!- -lance ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: File system file renaming question...
Phil Hystad wrote: Does anyone know of a way to turn this off or is this considered a feature for some ease-of-use aspect of OS X? Compress images to zip before sending? I've never seen Mail do anything except transfer zips as-is. -- GG ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
A list for off-topic messages (was Re: File system file renaming question...)
On Dec 8, 2009, at 9:26 AM, Phil Hystad wrote: This question is not specifically about Cocoa programming but I hope that some Mac OS X experts out there can give me an answer. Well, you're probably going to get spanked for doing that. A very good list for these type of Mac-related, but Cocoa-unrelated questions is the Mac-L, Macintosh News and Information mailing list. Subscribe information can be found at http://www.listmoms.net/mac-l/index.html. I'm posting this back to the list so that folks who are inclined in the future to post similar off-topic messages here will have an alternative. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: NSURLConnection Problem Inside QuickLook Generator
Well, it's the way the system is architected -- we are using QuickLook plugins for icon badging, and that badging depends on the state of certain elements of the filesystem which is maintained in a separate server process. sigh Best, Dalmazio On 2009-12-08, at 5:09 AM, Mike Abdullah wrote: I'm pretty certain Apple disallows use of non-file URLs in Quick Look generators for the simple reason that a generator should run as quickly as possible. Generators should also be fairly standalone - why do you need to POST to generate a preview/thumbnail? On 8 Dec 2009, at 10:13, Dalmazio Brisinda wrote: I'm writing a QuickLook plugin that, as part of the preview process, makes an http call to a (localhost) server to obtain data that is then used to generate the preview image. The code below works fine outside the QuickLook architecture, as a standard Cocoa application. But as soon as I move the (exact) same code over to the QuickLook plugin, a call to the server only returns (null) response, and (null) data. The docs indicate that this means the connection is failing. But why o why is it failing? If I print the contents of the NSError object to the console, I get the following message: 09-12-08 3:02:05 AM quicklookd[37158] error: Error Domain=NSPOSIXErrorDomain Code=1 UserInfo=0x10049d880 The operation couldn’t be completed. Operation not permitted It appears that sendSynchronousRequest:... is not permitted. So why is this operation not permitted? And is there a workaround? Any help would be most appreciated. NSURL * url = [NSURL URLWithString:urlString]; NSMutableURLRequest * request = [NSMutableURLRequest requestWithURL:url]; [request setHTTPMethod:@POST]; [request setHTTPBody:[params dataUsingEncoding:NSUTF8StringEncoding]]; [request setTimeoutInterval:5]; NSError * error; NSURLResponse * response; NSData * data = [NSURLConnection sendSynchronousRequest:request returningResponse:response error:error]; Best, Dalmazio ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cocoadev%40mikeabdullah.net This email sent to cocoa...@mikeabdullah.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSURLConnection Problem Inside QuickLook Generator
Thanks for that. Okay, I see the QuickLook docs sort of allude to this in regards to using Web-Kit plugins within QuickLook generators. Which gets me thinking: would it then be possible to maybe connect to the server via local distributed objects instead of using the NSURLConnection framework? In otherwords, how deep does the sandbox go? Any ideas on how to possibly bypass this would be most welcome. Best, Dalmazio On 2009-12-08, at 9:48 AM, David Duncan wrote: On Dec 8, 2009, at 2:13 AM, Dalmazio Brisinda wrote: I'm writing a QuickLook plugin that, as part of the preview process, makes an http call to a (localhost) server to obtain data that is then used to generate the preview image. The code below works fine outside the QuickLook architecture, as a standard Cocoa application. But as soon as I move the (exact) same code over to the QuickLook plugin, a call to the server only returns (null) response, and (null) data. The docs indicate that this means the connection is failing. But why o why is it failing? My understanding is Quicklook plugins are not allowed to make network connections due to sandbox restrictions. -- 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: NSURLConnection Problem Inside QuickLook Generator
On Tue, Dec 8, 2009 at 10:13 AM, Dalmazio Brisinda dbrisi...@gmail.com wrote: Well, it's the way the system is architected -- we are using QuickLook plugins for icon badging, and that badging depends on the state of certain elements of the filesystem which is maintained in a separate server process. This seems like a worrisome arrangement. The Finder's icon cache is notoriously temperamental. There is no guarantee about when your QuickLook generator will be called, so you run the risk of displaying incorrect information, which is worse than displaying no information at all. --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: NSURLConnection Problem Inside QuickLook Generator
On Dec 8, 2009, at 10:16 AM, Dalmazio Brisinda wrote: Thanks for that. Okay, I see the QuickLook docs sort of allude to this in regards to using Web-Kit plugins within QuickLook generators. Which gets me thinking: would it then be possible to maybe connect to the server via local distributed objects instead of using the NSURLConnection framework? In otherwords, how deep does the sandbox go? Sandbox restrictions are process-wide. Well, it's the way the system is architected -- we are using QuickLook plugins for icon badging, and that badging depends on the state of certain elements of the filesystem which is maintained in a separate server process. If the process is local you might try Unix domain sockets. Overall, you might have a better chance of getting help with this on Quicklook-dev, or perhaps Darwin-dev (for the sandboxing stuff). -- 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: NSURLConnection Problem Inside QuickLook Generator
This discussion would be better done in the quicklook-dev mailing list. And in fact, it already took place there. Please avoid cross posting questions like this. On Tue, Dec 8, 2009 at 7:16 PM, Dalmazio Brisinda dbrisi...@gmail.comwrote: Thanks for that. Okay, I see the QuickLook docs sort of allude to this in regards to using Web-Kit plugins within QuickLook generators. Which gets me thinking: would it then be possible to maybe connect to the server via local distributed objects instead of using the NSURLConnection framework? In otherwords, how deep does the sandbox go? Any ideas on how to possibly bypass this would be most welcome. Best, Dalmazio On 2009-12-08, at 9:48 AM, David Duncan wrote: On Dec 8, 2009, at 2:13 AM, Dalmazio Brisinda wrote: I'm writing a QuickLook plugin that, as part of the preview process, makes an http call to a (localhost) server to obtain data that is then used to generate the preview image. The code below works fine outside the QuickLook architecture, as a standard Cocoa application. But as soon as I move the (exact) same code over to the QuickLook plugin, a call to the server only returns (null) response, and (null) data. The docs indicate that this means the connection is failing. But why o why is it failing? My understanding is Quicklook plugins are not allowed to make network connections due to sandbox restrictions. -- 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/jjalon%40gmail.com This email sent to jja...@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: IKImageBrowserView image quality changing with redraw
This has so far only been tested on SnowLeopard. I'm going to divide this into two issues, since I'm not 100% sure they're related. 1) On redraw, a filtering is applied that changes the image quality. Are you seeing this change on first redraw from a large NSImage (rather than from a url to an image)? 2) The filtering applied may actually be appropriate for photographs, but I'm dealing with line drawings, which become completely unusable when scaled in this way. Even zero antialiasing would be greatly preferred 3) (Not an issue, but a possible solution that didn't work.) If providing an NSImage with multiple NSImageReps that only vary in resolution, icon style, IKImageBrowserView seems to always work with the first/largest. If I could make this work, I'd just generate multiple thumbnails. (I suppose I could throw away all thumbnails on bump the version number on scale change... expensive, though.) I've put up three screenshots: • http://www.addaon.com/IKImageBrowserView_scaling_A.png is a manually-scaled high-quality image (about half the size of the original; just for comparison) • http://www.addaon.com/IKImageBrowserView_scaling_B.png is how it appears initially (before redraw); this is marginally acceptable • http://www.addaon.com/IKImageBrowserView_scaling_C.png is the over-filtered form Again, the transition between B and C happens whenever I cause a redraw, for example by clicking on the background. Hard to overstate this problem. Adam On Tue, Dec 8, 2009 at 5:59 AM, Thomas Goossens tgooss...@mac.com wrote: Hi Adam, Is this on Leopard or Snowleopard ? I just tried to load images from /System/Library/Desktop Pictures in an IKImageBrowserView using the NSImage representation. They appears just fine for me (SnowLeopard). I'm trying to move from a custom view to an IKImageBrowserView in a project, and running into a somewhat odd problem. Context: my IKImageBrowserItems are IKImageBrowserNSImageRepresentationType, backed by a relatively large (~600x800) NSImage. When first drawn, at any scale factor, this looks great. However, as soon as a redraw (not a reload!) occurs, the quality goes to hell. For example, clicking in the browserview will cause this problem instantly. It's as if it's deciding all of a sudden to fall back to a cached image of much lower quality. Scrolling seems not to trigger a redraw of this type; so if a large view containing as-first-drawn high quality images is clicked, only the currently visible thumbnails will get degraded, and scrolling can then present a mix of degraded and full-quality images. Needless to say, this huge a reduction in image quality is not acceptable. How can this be prevented? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Localizing Xibs using bindings
Il giorno 05/dic/2009, alle ore 19.05, Rossi Matteo ha scritto: I find it very annoying to localize Xibs by keeping a copy for each translation. It's both tedious and error-prone. I've found that by simply binding each button's title (or wharever other control you need) to the appropriate key of a NSDictionary object I can easily localize each item. No need to create tons of outlets for each control. Indeed I have no outlet at all. It works smoothly and I can send only .strings files to my translators. Which technique you used to do this (to bind each button's title to a key of a NSDictionary without outlets)? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
[iPhone] UINavigationController and UINavigationBar
Hi. I created CustomNavBar subclassing UINavigationBar. In Interface Builder I drag a Navigation Controller (UINavigationController) from the library to the document. Under this object in document window I can see a Navigation Bar (UINavigationBar). Clicking it and using the Identity Inspector I can change the class from standard UINavigationBar to my CustomNavBar. How can I reproduce it programmatically? MyViewController *myViewController = [[MyViewController alloc] init]; UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:myViewController]; [myViewController release]; UINavigationController navigationBar property is read only so I can't do: CustomNavBar *customNavBar = [[CustomNavBar alloc] init]; navController.navigationBar = customNavBar; [customNavBar release]; What should I do to customize the navigation bar programmatically? Is IB more powerful than code? I believed all that can be done in IB could be done also programmatically. Duccio. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
CAShapeLayer and touches?
I have a CAShapeLayer and I'd like to drag it. I have this code which I
can't configure correctly:
- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];
if( CGRectContainsPoint([pointerLayer bounds], [touch
locationInView:pointerLayer] )){
NSLog(@touched the pointer);
}
}
Looks like that method expects a UIView - what's the best way to access the
CAShapeLayer to know whether or not a user's touched it? Then I'd like to
constrain drag it.
Thanks,
Eric
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Re: [iPhone] UINavigationController and UINavigationBar
You could subclass UINavigationController. Luke On Dec 8, 2009, at 9:46 AM, Duccio wrote: Hi. I created CustomNavBar subclassing UINavigationBar. In Interface Builder I drag a Navigation Controller (UINavigationController) from the library to the document. Under this object in document window I can see a Navigation Bar (UINavigationBar). Clicking it and using the Identity Inspector I can change the class from standard UINavigationBar to my CustomNavBar. How can I reproduce it programmatically? MyViewController *myViewController = [[MyViewController alloc] init]; UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:myViewController]; [myViewController release]; UINavigationController navigationBar property is read only so I can't do: CustomNavBar *customNavBar = [[CustomNavBar alloc] init]; navController.navigationBar = customNavBar; [customNavBar release]; What should I do to customize the navigation bar programmatically? Is IB more powerful than code? I believed all that can be done in IB could be done also programmatically. Duccio. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/luketheh%40apple.com This email sent to luket...@apple.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: Big memory/time consumption in NSTreeController KVO GC
Any ideas about why NSTreeController’s KVO is taking up so much memory/CPU with bookkeeping? Any suggestions for working around the problem? I assume that you are using bindings. Looks like a typical KVO notification storm to me. What works well for adding and updating one or two objects can easily turn to sludge for larger object numbers as thousands of KVO notifications are sent. This isn't bookkeeping - its KVO doing what you asked it to do - telling you about every change to your model. Are you adding your nodes to the NSTreeControllers content while bindings are active? If you build your tree separately and then set the NSTreeController content/binding then things should improve drastically. Hope this helps. Jonathan Thanks, Benjamin Rister___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/jonathan%40mugginsoft.com This email sent to jonat...@mugginsoft.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: Customize the line's color that separates the window content from the title bar?
On Dec 8, 2009, at 9:25 AM, Michael Abendroth wrote: I'd like to customize the color of the line that separates a window's content area from its title bar. Try turning on the textured flag in IB. —Jens ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Customize the line's color that separates the window content from the title bar?
On Tue, Dec 8, 2009 at 8:54 PM, Jens Alfke j...@mooseyard.com wrote: On Dec 8, 2009, at 9:25 AM, Michael Abendroth wrote: I'd like to customize the color of the line that separates a window's content area from its title bar. Try turning on the textured flag in IB. —Jens Unfortunately, when turning on the textured flag in IB, my app mysteriously crashes. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: [iPhone] UINavigationController and UINavigationBar
Il giorno 08/dic/2009, alle ore 20.40, Luke the Hiesterman ha scritto: You could subclass UINavigationController. I can't (or I should't): This class is not intended for subclassing. Instead, you use instances of it as-is in situations where you want your application’s user interface to reflect the hierarchical nature of your content. (UINavigationController Class Reference, Apple) The question is: why can I use my custom subclass of UINavigationBar in a UINavigationController using IB and I can't do it programmatically? All that can be done in IB should not be able to do programmatically? Thanks, Duccio Luke On Dec 8, 2009, at 9:46 AM, Duccio wrote: Hi. I created CustomNavBar subclassing UINavigationBar. In Interface Builder I drag a Navigation Controller (UINavigationController) from the library to the document. Under this object in document window I can see a Navigation Bar (UINavigationBar). Clicking it and using the Identity Inspector I can change the class from standard UINavigationBar to my CustomNavBar. How can I reproduce it programmatically? MyViewController *myViewController = [[MyViewController alloc] init]; UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:myViewController]; [myViewController release]; UINavigationController navigationBar property is read only so I can't do: CustomNavBar *customNavBar = [[CustomNavBar alloc] init]; navController.navigationBar = customNavBar; [customNavBar release]; What should I do to customize the navigation bar programmatically? Is IB more powerful than code? I believed all that can be done in IB could be done also programmatically. Duccio. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: CAShapeLayer and touches?
On Dec 8, 2009, at 11:34 AM, Eric E. Dolecki wrote: Looks like that method expects a UIView - what's the best way to access the CAShapeLayer to know whether or not a user's touched it? Then I'd like to constrain drag it. Are you trying to hit test against the shape layer's path? I'm not certain that is trivial. Does the shape layer have an associated view (i.e. did you subclass UIView to override +layerClass)? If so you could use that associated view. Otherwise you can use the layer's -hitTest: method to determine which layer was hit. -- 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: [iPhone] UINavigationController and UINavigationBar
On Tue, Dec 8, 2009 at 12:00 PM, Aldo Armiento lists.ap...@me.com wrote: The question is: why can I use my custom subclass of UINavigationBar in a UINavigationController using IB and I can't do it programmatically? All that can be done in IB should not be able to do programmatically? I guess one question is, why do you want to do this programmatically? Prefer IB over writing code. Though you're right, you should be able to at least specify the class of navigation bar, if not provide your own instance. --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: Tracking Multiple Touches For Appropriate Label
On Dec 8, 2009, at 8:59 am, Chunk 1978 wrote:
this is what i have so far, but i have no idea how to write the
touchesEnded method so that the appropriate label will clear. so if 3
fingers are touching the screen and displaying their different
coordinates, if the 2nd finger that was pressed ends its touch, the
2nd label will clear (Touch 2: {0, 0}) while the 1st and 3rd
continue to track. clearly i'm lost, i apologize.
[...]
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
for (UITouch *touch in touches)
[touchesArray addObject:touch];
Touches are delivered in mathematical sets; there is no ordering. It's not
quite clear what you're trying to achieve by adding the touches to the array,
but it won't preserve ordering for you over the long term. A user may make one
touch, then put down another finger, lift the first, then put down a third
whilst the second is still on screen. Is that now touch 1 or touch 3? (UIKit
happens to recycle touch objects, but it's not clear if that's the same
semantic you want.)
(As an aside, note also NSSet's initWithArray: method...)
It's still not clear precisely what you want to achieve (see
http://catb.org/~esr/faqs/smart-questions.html#goal). Generally, though, you
seem to want a mapping from a touch to a particular label to display the
current coordinates, along the lines of the class below...
mmalc
#import UIKit/UIKit.h
#import CoreFoundation/CoreFoundation.h
@interface TouchesView : UIView {
UILabel *touchLabel1;
UILabel *touchLabel2;
UILabel *touchLabel3;
UILabel *touchLabel4;
UILabel *touchLabel5;
CFMutableDictionaryRef touchToLabelMapping;
NSMutableArray *availableLabels;
BOOL setUp;
}
@property (nonatomic, retain) IBOutlet UILabel *touchLabel1;
@property (nonatomic, retain) IBOutlet UILabel *touchLabel2;
@property (nonatomic, retain) IBOutlet UILabel *touchLabel3;
@property (nonatomic, retain) IBOutlet UILabel *touchLabel4;
@property (nonatomic, retain) IBOutlet UILabel *touchLabel5;
@end
@implementation TouchesView
@synthesize touchLabel1, touchLabel2, touchLabel3, touchLabel4, touchLabel5;
- (void)setUpTouchHandling {
touchToLabelMapping = CFDictionaryCreateMutable (kCFAllocatorDefault, 5,
kCFTypeDictionaryKeyCallBacks, kCFTypeDictionaryValueCallBacks);
availableLabels = [[NSMutableArray alloc] initWithObjects:touchLabel1,
touchLabel2, touchLabel3, touchLabel4, touchLabel5, nil];
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
if (!setUp) {
[self setUpTouchHandling];
}
for (UITouch *touch in touches) {
if (touch.view == self) {
UILabel *label = (UILabel *)[availableLabels objectAtIndex:0];
CFDictionaryAddValue (touchToLabelMapping, touch, label);
[availableLabels removeObjectAtIndex:0];
label.text = NSStringFromCGPoint([touch locationInView:self]);
}
}
}
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
for (UITouch *touch in touches) {
if (touch.view == self) {
UILabel *label = (UILabel
*)CFDictionaryGetValue(touchToLabelMapping, touch);
label.text = NSStringFromCGPoint([touch locationInView:self]);
}
}
}
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
for (UITouch *touch in touches) {
if (touch.view == self) {
UILabel *label = (UILabel
*)CFDictionaryGetValue(touchToLabelMapping, touch);
label.text = @{0, 0};
CFDictionaryRemoveValue (touchToLabelMapping, touch);
[availableLabels addObject:label];
}
}
}
- (void)dealloc {
CFRelease(touchToLabelMapping);
[availableLabels release];
[touchLabel1 release];
[touchLabel2 release];
[touchLabel3 release];
[touchLabel4 release];
[touchLabel5 release];
[super dealloc];
}
@end
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Re: [iPhone] UINavigationController and UINavigationBar
At least on the iPhone I can say that using NIBs can add a short delay or slow some UI operations down. Normally we prefer to use IB everywhere we can. On the iPhone we balance it more. Places where pure code is not difficult, we'll go that route because its noticeably faster. While its gotten better in iPhone OS 3.0+, I can say that there have been a few places where using a NIB creates a non-smooth experience whereas using pure code is smooth as butter. And this is borne out in tech talks and WWDC recommendations. iPhone dev has to keep in mind the fact its a CPU/memory limited device. On Dec 8, 2009, at 2:17 PM, Kyle Sluder wrote: On Tue, Dec 8, 2009 at 12:00 PM, Aldo Armiento lists.ap...@me.com wrote: The question is: why can I use my custom subclass of UINavigationBar in a UINavigationController using IB and I can't do it programmatically? All that can be done in IB should not be able to do programmatically? I guess one question is, why do you want to do this programmatically? Prefer IB over writing code. Though you're right, you should be able to at least specify the class of navigation bar, if not provide your own instance. --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/alex%40webis.net This email sent to a...@webis.net Alex Kac - President and Founder Web Information Solutions, Inc. There will always be death and taxes; however, death doesn't get worse every year. -- Anonymous ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: CAShapeLayer and touches?
Basically if a user touches the shape layer's path (the UI for the pointer), I'd like the user to be able to slide it left and right. I did not subclass UIView - I am using a rootLayer and using the path within that. CAShapeLayers have hitTests? I haven't seen code like that anywhere yet (Google). Any help appreciated. On Tue, Dec 8, 2009 at 3:01 PM, David Duncan david.dun...@apple.com wrote: On Dec 8, 2009, at 11:34 AM, Eric E. Dolecki wrote: Looks like that method expects a UIView - what's the best way to access the CAShapeLayer to know whether or not a user's touched it? Then I'd like to constrain drag it. Are you trying to hit test against the shape layer's path? I'm not certain that is trivial. Does the shape layer have an associated view (i.e. did you subclass UIView to override +layerClass)? If so you could use that associated view. Otherwise you can use the layer's -hitTest: method to determine which layer was hit. -- David Duncan Apple DTS Animation and Printing -- http://ericd.net Interactive design and development ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: CAShapeLayer and touches?
On Dec 8, 2009, at 12:47 PM, Eric E. Dolecki wrote: Basically if a user touches the shape layer's path (the UI for the pointer), I'd like the user to be able to slide it left and right. I did not subclass UIView - I am using a rootLayer and using the path within that. CAShapeLayers have hitTests? I haven't seen code like that anywhere yet (Google). Any help appreciated. CAShapeLayer is a subclass of CALayer, and CALayer provides -hitTest:. However, I'm fairly certain that it is based on the layer's geometry (position, bounds, transform) rather than its content. -- 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: [iPhone] UINavigationController and UINavigationBar
Il giorno 08/dic/2009, alle ore 21.37, Alex Kac ha scritto: At least on the iPhone I can say that using NIBs can add a short delay or slow some UI operations down. Normally we prefer to use IB everywhere we can. On the iPhone we balance it more. Places where pure code is not difficult, we'll go that route because its noticeably faster. While its gotten better in iPhone OS 3.0+, I can say that there have been a few places where using a NIB creates a non-smooth experience whereas using pure code is smooth as butter. And this is borne out in tech talks and WWDC recommendations. But it seems that in this case I can't use my UINavigationBar subclass if I instantiate a Navigation Controller programmatically, so the only way to use my UINavigationBar subclass is to instantiate a Navigation Controller in IB otherwise I can't change UINavigationBar class/instance, this makes sense? I'm forced to use IB? Duccio iPhone dev has to keep in mind the fact its a CPU/memory limited device. On Dec 8, 2009, at 2:17 PM, Kyle Sluder wrote: On Tue, Dec 8, 2009 at 12:00 PM, Aldo Armiento lists.ap...@me.com wrote: The question is: why can I use my custom subclass of UINavigationBar in a UINavigationController using IB and I can't do it programmatically? All that can be done in IB should not be able to do programmatically? I guess one question is, why do you want to do this programmatically? Prefer IB over writing code. Though you're right, you should be able to at least specify the class of navigation bar, if not provide your own instance. --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/alex%40webis.net This email sent to a...@webis.net Alex Kac - President and Founder Web Information Solutions, Inc. There will always be death and taxes; however, death doesn't get worse every year. -- Anonymous ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: CAShapeLayer and touches?
Okay - so how would I use the bounds? I thought I tried that in my initial
code sample:
if( CGRectContainsPoint([*pointerLayer bounds*], [touch
locationInView:pointerLayer] )){
or is that part correct and the [touch locationInView:pointerLayer.view] be
correct?
Thanks,
Eric
On Tue, Dec 8, 2009 at 3:48 PM, David Duncan david.dun...@apple.com wrote:
On Dec 8, 2009, at 12:47 PM, Eric E. Dolecki wrote:
Basically if a user touches the shape layer's path (the UI for the
pointer), I'd like the user to be able to slide it left and right. I did not
subclass UIView - I am using a rootLayer and using the path within that.
CAShapeLayers have hitTests? I haven't seen code like that anywhere yet
(Google). Any help appreciated.
CAShapeLayer is a subclass of CALayer, and CALayer provides -hitTest:.
However, I'm fairly certain that it is based on the layer's geometry
(position, bounds, transform) rather than its content.
--
David Duncan
Apple DTS Animation and Printing
--
http://ericd.net
Interactive design and development
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Re: [iPhone] UINavigationController and UINavigationBar
On Dec 8, 2009, at 12:49 PM, Aldo Armiento wrote: But it seems that in this case I can't use my UINavigationBar subclass if I instantiate a Navigation Controller programmatically, so the only way to use my UINavigationBar subclass is to instantiate a Navigation Controller in IB otherwise I can't change UINavigationBar class/instance, this makes sense? I'm forced to use IB? Given that the API labels this property as readonly and it's not really meant to contain anything other than a stock UINavigationBar, I'd recommend avoiding even using this approach in IB. If there is some customization you need that is not already available, I recommend filing an ER. Luke___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: CAShapeLayer and touches?
I might just say forget it and wire up a UIImageView and have the user drag
that instead. I wanted to use vectors for this, but a PNG might be just as
good. It would be cool to know how to do this someday though.
On Tue, Dec 8, 2009 at 3:52 PM, Eric E. Dolecki edole...@gmail.com wrote:
Okay - so how would I use the bounds? I thought I tried that in my initial
code sample:
if( CGRectContainsPoint([*pointerLayer bounds*], [touch
locationInView:pointerLayer] )){
or is that part correct and the [touch locationInView:pointerLayer.view]be
correct?
Thanks,
Eric
On Tue, Dec 8, 2009 at 3:48 PM, David Duncan david.dun...@apple.comwrote:
On Dec 8, 2009, at 12:47 PM, Eric E. Dolecki wrote:
Basically if a user touches the shape layer's path (the UI for the
pointer), I'd like the user to be able to slide it left and right. I did not
subclass UIView - I am using a rootLayer and using the path within that.
CAShapeLayers have hitTests? I haven't seen code like that anywhere yet
(Google). Any help appreciated.
CAShapeLayer is a subclass of CALayer, and CALayer provides -hitTest:.
However, I'm fairly certain that it is based on the layer's geometry
(position, bounds, transform) rather than its content.
--
David Duncan
Apple DTS Animation and Printing
--
http://ericd.net
Interactive design and development
--
http://ericd.net
Interactive design and development
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Re: [iPhone] UINavigationController and UINavigationBar
Il giorno 08/dic/2009, alle ore 21.53, Luke the Hiesterman ha scritto: On Dec 8, 2009, at 12:49 PM, Aldo Armiento wrote: But it seems that in this case I can't use my UINavigationBar subclass if I instantiate a Navigation Controller programmatically, so the only way to use my UINavigationBar subclass is to instantiate a Navigation Controller in IB otherwise I can't change UINavigationBar class/instance, this makes sense? I'm forced to use IB? Given that the API labels this property as readonly and it's not really meant to contain anything other than a stock UINavigationBar, I'd recommend avoiding even using this approach in IB. If there is some customization you need that is not already available, I recommend filing an ER. I'm new to Apple development, what does it mean filing an ER? It's like a feature request? Thanks, Duccio. Luke ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: [iPhone] UINavigationController and UINavigationBar
On Dec 8, 2009, at 1:13 PM, Duccio wrote: Il giorno 08/dic/2009, alle ore 21.53, Luke the Hiesterman ha scritto: On Dec 8, 2009, at 12:49 PM, Aldo Armiento wrote: But it seems that in this case I can't use my UINavigationBar subclass if I instantiate a Navigation Controller programmatically, so the only way to use my UINavigationBar subclass is to instantiate a Navigation Controller in IB otherwise I can't change UINavigationBar class/instance, this makes sense? I'm forced to use IB? Given that the API labels this property as readonly and it's not really meant to contain anything other than a stock UINavigationBar, I'd recommend avoiding even using this approach in IB. If there is some customization you need that is not already available, I recommend filing an ER. I'm new to Apple development, what does it mean filing an ER? It's like a feature request? Precisely. Check out http://developer.apple.com/bugreporter/ Luke___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: CAShapeLayer and touches?
On Dec 8, 2009, at 12:52 PM, Eric E. Dolecki wrote:
Okay - so how would I use the bounds? I thought I tried that in my initial
code sample:
Your making this too complicated :).
if([self.view.layer hitTest:[touch locationInView:self]] == pointLayer]) {
// my shape layer got hit
}
--
David Duncan
Apple DTS Animation and Printing
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Re: [iPhone] UINavigationController and UINavigationBar
On Dec 8, 2009, at 12:49 PM, Aldo Armiento wrote: But it seems that in this case I can't use my UINavigationBar subclass if I instantiate a Navigation Controller programmatically, so the only way to use my UINavigationBar subclass is to instantiate a Navigation Controller in IB otherwise I can't change UINavigationBar class/instance, this makes sense? I'm forced to use IB? Since we've come around to file an ER then an appropriate question seems to be what are you trying to accomplish by subclassing the UINavigationBar? -- 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: Big memory/time consumption in NSTreeController KVO GC
On Dec 8, 2009, at 2:44 PM, jonat...@mugginsoft.com wrote: Any ideas about why NSTreeController’s KVO is taking up so much memory/CPU with bookkeeping? Any suggestions for working around the problem? I assume that you are using bindings. Yes. Looks like a typical KVO notification storm to me. What works well for adding and updating one or two objects can easily turn to sludge for larger object numbers as thousands of KVO notifications are sent. This isn't bookkeeping - its KVO doing what you asked it to do - telling you about every change to your model. Well...not quite. There’s nothing about doing this notification that requires allocating hundreds of megabytes of overhead, particularly when the model itself is a fraction of that size, including payload. As I mentioned, these blocks it’s allocating are 16KB each. I can’t fathom what legitimate data you could possibly keep to do this observation that would take up that much space. In addition, if you look at the stack trace, most of the memory allocations are happening in response to NSKeyValueObservanceBecameUseless; thus, it’s happening after all of the actual, real work is done. It’s entirely speculation, but this could be explained by transient KVO stuff not being garbage collected properly, like it’s being kept alive unnecessarily. Also, while I forgot to mention this in the original email, the allocations follow a sawtooth pattern with a period of around 1-2 minutes, rising steadily then suddenly vanishing in an instant. This could support the GC hypothesis, or just be a red herring. Maybe these allocations are being missed by the generational collector for some reason, and are only caught by exhaustive collections? Or maybe some structure/cache/buffer is being periodically flushed, dropping the references? The model objects are gone (obviously, since that’s what triggers the allocations), so it shouldn’t be me keeping them alive. Are you adding your nodes to the NSTreeControllers content while bindings are active? If you build your tree separately and then set the NSTreeController content/binding then things should improve drastically. Unfortunately, this isn’t static content. It’s dynamic, and needs to change in response to external conditions. So the KVO notifications themselves are necessary in this approach, the overhead just seems unreasonable. Best, Benjamin___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: NSRulerMarker and dragging
Arved, There is currently no API to do this. Please submit an enhancement request through bugreporter.apple.com. -James On Oct 17, 2009, at 9:45 PM, Arved von Brasch wrote: Hello Cocoa List, My Googling reveals this question has been asked before, but no answer was given. Hopefully someone knows how to do this now. I have a vertical NSRulerView attached to an NSTextView. I have movable NSRulerMarkers and that's all working good. My only problem is that the NSRulerMarkers insist on displaying a tooltip with the current measurement values when the marker is being dragged. This is not appropriate in my application. Ideally, I would like to suppress these tooltips. I have tried intercepting various things in my NSRulerView subclass. These typically didn't work because the ruler view doesn't seem to be responsible for the generation of the tooltips. NSRulerMarker doesn't seem to have functionality to do this, and doesn't inherit from NSView either. Another way to manage this might be to provide a dynamic measurement unit. My markers are essentially pointers into the text, and really are indicating specific line numbers, like break points. Dynamic measurements would be necessary because the font of the TextView can be set by the user, and where the marker is pointing will then depend on the font size. There doesn't seem to be a way to do this either. Is there something I'm missing? Surely this is something someone has attempted before? Thanks in advance, Arved ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/dempsey%40apple.com This email sent to demp...@apple.com -- James Dempsey AppKit Engineering Apple demp...@apple.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: CAShapeLayer and touches?
I send to you many thanks.
On Tue, Dec 8, 2009 at 4:17 PM, David Duncan david.dun...@apple.com wrote:
On Dec 8, 2009, at 12:52 PM, Eric E. Dolecki wrote:
Okay - so how would I use the bounds? I thought I tried that in my
initial code sample:
Your making this too complicated :).
if([self.view.layer hitTest:[touch locationInView:self]] == pointLayer]) {
// my shape layer got hit
}
--
David Duncan
Apple DTS Animation and Printing
--
http://ericd.net
Interactive design and development
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Re: [iPhone] UINavigationController and UINavigationBar
Il giorno 08/dic/2009, alle ore 22.19, David Duncan ha scritto:
On Dec 8, 2009, at 12:49 PM, Aldo Armiento wrote:
But it seems that in this case I can't use my UINavigationBar subclass if I
instantiate a Navigation Controller programmatically, so the only way to use
my UINavigationBar subclass is to instantiate a Navigation Controller in IB
otherwise I can't change UINavigationBar class/instance, this makes sense?
I'm forced to use IB?
Since we've come around to file an ER then an appropriate question seems to
be what are you trying to accomplish by subclassing the UINavigationBar?
I'm drawing a navigation bar background image overriding drawRect: method. If
in Interface Builder I change Navigation Bar class from UINavigationBar to
CustomNavigationBar it works properly. How do that programmatically?
@interface CustomNavigationBar : UINavigationBar {
}
@end
@implementation CustomNavigationBar
- (void)drawRect:(CGRect)rect {
[[UIImage imageNamed:@image.png] drawInRect:rect];
}
@end
--
David Duncan
Apple DTS Animation and Printing
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Re: Big memory/time consumption in NSTreeController KVO GC
On Dec 8, 2009, at 1:22 PM, Benjamin Rister wrote: Well...not quite. There’s nothing about doing this notification that requires allocating hundreds of megabytes of overhead, particularly when the model itself is a fraction of that size, including payload. As I mentioned, these blocks it’s allocating are 16KB each. I can’t fathom what legitimate data you could possibly keep to do this observation that would take up that much space. In addition, if you look at the stack trace, most of the memory allocations are happening in response to NSKeyValueObservanceBecameUseless; thus, it’s happening after all of the actual, real work is done. Which OS version is this? 10.6.2 fixed a performance problem with garbage collection and large KVO populations. If you still have trouble in 10.6.2+ then you should file a bug report. -- Greg Parker gpar...@apple.com Runtime Wrangler ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Binding and Observers
Hi Gerriet, On 8/12/09, gerr...@mdenkmann.de wrote: MyDocument.nib has an IKImageView and an NSSlider with it's value bound to myIkView.rotationAngle. But when I closed the window I got an exception complaining about some observers not beeing removed. Is it the 'Cannot remove observer...' exception? If so, its nasty and difficult to work around. Worse, once the exception occurs the app is left in an unstable state, which may be why you eventually get the EXC_BAD_ACCESS. I currently just put up a message with a Relaunch button after catching the exception. Its embarrassing but after over two years of struggling, stammering and making excuses for 'Cannot remove observer...', that's all I've got. One glimmer of hope I'm pursuing as of yesterday is adding custom methods to change bindings like myIkView.rotationAngle to myIkViewRotationAngle along with the appropriate keyPathsForValuesAffecting... methods. For what its worth. Previously, I added code to Core Data relationship setters to remove objects from any existing relationship before setting a new one. I'm not sure if that accomplished anything but one gets to the point where one will try anything. I've heard rumblings that the problem got worse with 10.6 rather than better. I'm starting some testing on that now before I migrate clients. If you have a simple test case, filing a bug report won't hurt. But if history is any indication it may not help much either. bugreport.apple.com Good luck, 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: Tracking Multiple Touches For Appropriate Label
On Dec 8, 2009, at 12:33 pm, mmalc Crawford wrote:
Get the logic right...
- (void)setUpTouchHandling {
touchToLabelMapping = CFDictionaryCreateMutable (kCFAllocatorDefault, 5,
kCFTypeDictionaryKeyCallBacks, kCFTypeDictionaryValueCallBacks);
availableLabels = [[NSMutableArray alloc] initWithObjects:touchLabel1,
touchLabel2, touchLabel3, touchLabel4, touchLabel5, nil];
}
- (void)setUpTouchHandling {
touchToLabelMapping = CFDictionaryCreateMutable (kCFAllocatorDefault, 5,
kCFTypeDictionaryKeyCallBacks, kCFTypeDictionaryValueCallBacks);
availableLabels = [[NSMutableArray alloc] initWithObjects:touchLabel1,
touchLabel2, touchLabel3, touchLabel4, touchLabel5, nil];
setUp = YES;
}
... and improve the user experience accordingly:
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
for (UITouch *touch in touches) {
if (touch.view == self) {
UILabel *label = (UILabel
*)CFDictionaryGetValue(touchToLabelMapping, touch);
label.text = @{0, 0};
CFDictionaryRemoveValue (touchToLabelMapping, touch);
[availableLabels addObject:label];
}
}
}
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
for (UITouch *touch in touches) {
if (touch.view == self) {
UILabel *label = (UILabel
*)CFDictionaryGetValue(touchToLabelMapping, touch);
label.text = @{0, 0};
CFDictionaryRemoveValue (touchToLabelMapping, touch);
[availableLabels insertObject:label atIndex:0];
}
}
}
(I'm using setUpTouchHandling so that this will work however you configure your
view or view controller -- ideally you choose a more appropriate initialisation
locus.)
mmalc
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Re: Binding and Observers
On Dec 8, 2009, at 2:17 am, Gerriet M. Denkmann wrote:
- (void)windowWillClose:(NSNotification *)notification
{
id f = [ ikView observationInfo ];
NSString *oi = [ f description ];
BOOL ok;
NSString *obs = @Observer:;
NSString *kpa = @Key path:;
unsigned long long uuu;
NSString *keyPath1;
NSScanner *u = [ NSScanner scannerWithString: oi ];
[ u setCharactersToBeSkipped: [ NSCharacterSet
whitespaceAndNewlineCharacterSet ] ];
ok = [ u scanUpToString: obs intoString: NULL ];
ok = [ u scanString: obs intoString: NULL ];
ok = [ u scanHexLongLong: uuu ];
ok = [ u scanUpToString: kpa intoString: NULL ];
ok = [ u scanString: kpa intoString: NULL ];
ok = [ u scanUpToString: @, intoString: keyPath1 ];
[ myIkView removeObserver: (id)uuu forKeyPath: keyPath1 ];
}
???!!
What's wrong with unbind:?
http://developer.apple.com/mac/library/documentation/Cocoa/Reference/ApplicationKit/Protocols/NSKeyValueBindingCreation_Protocol/Reference/Reference.html#//apple_ref/occ/instm/NSObject/unbind:
mmalc
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Re: Big memory/time consumption in NSTreeController KVO GC
On 09/12/2009, at 7:35 AM, Greg Parker wrote: Which OS version is this? 10.6.2 fixed a performance problem with garbage collection and large KVO populations. If you still have trouble in 10.6.2+ then you should file a bug report. There are still massive remaining performance issues with NSTreeController/NSArrayController in 10.6 if you have a large number of active bindings. Please see my bug report rdar://7139579 which includes a simple sample project. The performance on Snow Leopard is orders of magnitude slower than in 10.5. All of the problems seem to relate to the private class NSConcretePointerArray and something that it's doing with weak references. That seems to be involved in Benjamin's case and it is definitely the problem in our case based on Shark traces. Specifically, the routines auto_read_weak_reference(), readWeakAt() and objc_read_weak() that appear to be involved in the the -compact method of NSConcretePointerArray are taking up an inordinate amount of CPU time. -- Rob Keniger ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Improving speed of NSCollectionView scrolling
Hi, I am using NSCollectionView for a project in which the collection view is populated with about 200 items, each containing about 4 subviews (image view, and a few text fields). Scrolling is not smooth at all, and lags quite a bit. I'm wondering, would just drawing the text and images as part of the view in the prototype views drawRect method yield any increase in smoothness, rather than using subviews? Thanks___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Improving speed of NSCollectionView scrolling
On 8 Dec 2009, at 23:40, PCWiz wrote: Hi, I am using NSCollectionView for a project in which the collection view is populated with about 200 items, each containing about 4 subviews (image view, and a few text fields). Scrolling is not smooth at all, and lags quite a bit. I'm wondering, would just drawing the text and images as part of the view in the prototype views drawRect method yield any increase in smoothness, rather than using subviews? Why are you asking us this now? It sounds like you haven't done any performance profiling to find out what's actually slow. Do that and then come back. If it suits your needs, IKImageBrowserView is somewhat faster than NSCollectionView.___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Fwd: nscalendardate with 10.4
On 12/7/09 2:32 PM, Sissy said: i've complete my project which runs great on 10.5 leopard and i am trying to compile it to work with 10.4 (tiger). i use nscalendardate which uses nsinteger which does not exist in 10.4. how do i adjust dates using nscalendardate which is supposed to work with 10.0 and later without having the use of nsinteger which only works on 10.5 and later. - (NSCalendarDate *)dateByAddingYears:(NSInteger)year months: (NSInteger)month days:(NSInteger)day hours:(NSInteger)hourminutes: (NSInteger)minute seconds:(NSInteger)second my code: // NSInteger counter = [selectDate dayOfWeek]; int counter = [selectDate dayOfWeek]; // NSLog(@dates are picker %@ and calendar %@ and counter is %i,theDate,selectDate,counter); NSCalendarDate *tempDate = [selectDate dateByAddingYears:0 months:0 days: -counter hours:0 minutes:0 seconds:0]; Sissy, NSInteger is just a typedef and it's only used in the 10.5 and later SDKs. But you can use the 10.5 SDK and still support 10.4. You just need to change your deployment target to 10.4. -- 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: [iPhone] UINavigationController and UINavigationBar
On 8 Dec 2009, at 20:49, Aldo Armiento wrote: Il giorno 08/dic/2009, alle ore 21.37, Alex Kac ha scritto: At least on the iPhone I can say that using NIBs can add a short delay or slow some UI operations down. Normally we prefer to use IB everywhere we can. On the iPhone we balance it more. Places where pure code is not difficult, we'll go that route because its noticeably faster. While its gotten better in iPhone OS 3.0+, I can say that there have been a few places where using a NIB creates a non-smooth experience whereas using pure code is smooth as butter. And this is borne out in tech talks and WWDC recommendations. But it seems that in this case I can't use my UINavigationBar subclass if I instantiate a Navigation Controller programmatically, so the only way to use my UINavigationBar subclass is to instantiate a Navigation Controller in IB otherwise I can't change UINavigationBar class/instance, this makes sense? I'm forced to use IB? If something can be done in IB, it can almost certainly be done programmatically. Whether it will be easy is another matter. Nibs are loaded by unarchiving the objects within using the NSKeyedUnarchiving protocol. Therefore, one can get the same effect in code by unarchiving a UINavigationController while customising the archiver to substitute your custom class for UINavigationBar. Tedious, but doable. Other alternatives: - Subclass UINavigationController to return a custom view from -navigationBar. - Add a custom subview to the nav bar to do your drawing.___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: odd problems with NSData / OpenGL
On Dec 8, 2009, at 6:42 PM, David Duncan wrote:
More than likely this is a memory management problem. Specifically, you
probably aren't claiming ownership of the NSData object that you store in
your instance variable, and thus it is being deallocated out from under you.
I was under the impression that automatic garbage collection was used in Mac OS
X 10.5 and over, so retaining and releasing objects was handled automatically?
This is the initializer method of my Mesh class (I'm using OpenCTM library for
importing triangle meshes):
- (id)initWithContentsOfFile:(NSString *)path
{
self = [super init];
if (self) {
// Create an OpenCTM context and load the mesh from disk.
CTMcontext context = ctmNewContext(CTM_IMPORT);
ctmLoad(context, [path UTF8String]);
// Check OpenCTM errors.
CTMenum error = ctmGetError(context);
if (error != CTM_NONE) {
NSLog(@OpenCTM error while opening %@: %s (%d), path,
ctmErrorString(error), error);
ctmFreeContext(context);
[self dealloc];
return nil;
}
// Store the geometry arrays.
_vertices = [NSData dataWithBytes:ctmGetFloatArray(context,
CTM_VERTICES)
length:ctmGetInteger(context, CTM_VERTEX_COUNT) * sizeof(CTMfloat[3])];
_indices = [NSData dataWithBytes:ctmGetIntegerArray(context,
CTM_INDICES)
length:ctmGetInteger(context, CTM_TRIANGLE_COUNT) * sizeof(CTMuint[3])];
// Calculate the bounding sphere radius.
for (CTMuint i = 0; i ctmGetInteger(context,
CTM_VERTEX_COUNT) * 3; i += 3) {
const CTMfloat x = ctmGetFloatArray(context,
CTM_VERTICES)[i + 0];
const CTMfloat y = ctmGetFloatArray(context,
CTM_VERTICES)[i + 1];
const CTMfloat z = ctmGetFloatArray(context,
CTM_VERTICES)[i + 2];
_radius = MAX(sqrt(x*x + y*y + z*z), _radius);
}
// Release the OpenCTM context.
ctmFreeContext(context);
}
return self;
}
--
David Duncan
Apple DTS Animation and Printing
Regards,
Henri Häkkinen
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Re: [iPhone] UINavigationController and UINavigationBar
On Dec 8, 2009, at 3:51 PM, Mike Abdullah wrote: Other alternatives: - Subclass UINavigationController to return a custom view from -navigationBar. - Add a custom subview to the nav bar to do your drawing. I recommend neither of these. It's already been brought up that UINavigationController shouldn't be subclassed, and it isn't meant as a container for arbitrary views, either. If you really aren't satisfied with using a tint color for the background, file an ER asking for an API to provide a background image. Luke___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Improving speed of NSCollectionView scrolling
Sorry I'm new to Obj-C/Cocoa, how would I do this performance profiling? On 2009-12-08, at 4:50 PM, Mike Abdullah wrote: On 8 Dec 2009, at 23:40, PCWiz wrote: Hi, I am using NSCollectionView for a project in which the collection view is populated with about 200 items, each containing about 4 subviews (image view, and a few text fields). Scrolling is not smooth at all, and lags quite a bit. I'm wondering, would just drawing the text and images as part of the view in the prototype views drawRect method yield any increase in smoothness, rather than using subviews? Why are you asking us this now? It sounds like you haven't done any performance profiling to find out what's actually slow. Do that and then come back. If it suits your needs, IKImageBrowserView is somewhat faster than NSCollectionView. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: odd problems with NSData / OpenGL
If you don't turn GC on, then you likely don't have it on. Check your
project settings, as most if the project templates do not enable GC.
--
David Duncan @ My iPhone
On Dec 8, 2009, at 3:52 PM, Henri Häkkinen hen...@henuxsoft.com
wrote:
On Dec 8, 2009, at 6:42 PM, David Duncan wrote:
More than likely this is a memory management problem. Specifically,
you probably aren't claiming ownership of the NSData object that
you store in your instance variable, and thus it is being
deallocated out from under you.
I was under the impression that automatic garbage collection was
used in Mac OS X 10.5 and over, so retaining and releasing objects
was handled automatically?
This is the initializer method of my Mesh class (I'm using OpenCTM
library for importing triangle meshes):
- (id)initWithContentsOfFile:(NSString *)path
{
self = [super init];
if (self) {
// Create an OpenCTM context and load the mesh from disk.
CTMcontext context = ctmNewContext(CTM_IMPORT);
ctmLoad(context, [path UTF8String]);
// Check OpenCTM errors.
CTMenum error = ctmGetError(context);
if (error != CTM_NONE) {
NSLog(@OpenCTM error while opening %@: %s (%d), path,
ctmErrorString(error), error);
ctmFreeContext(context);
[self dealloc];
return nil;
}
// Store the geometry arrays.
_vertices = [NSData dataWithBytes:ctmGetFloatArray(context,
CTM_VERTICES)
length:ctmGetInteger(context,
CTM_VERTEX_COUNT) * sizeof(CTMfloat[3])];
_indices = [NSData dataWithBytes:ctmGetIntegerArray(context,
CTM_INDICES)
length:ctmGetInteger(context,
CTM_TRIANGLE_COUNT) * sizeof(CTMuint[3])];
// Calculate the bounding sphere radius.
for (CTMuint i = 0; i ctmGetInteger(context,
CTM_VERTEX_COUNT) * 3; i += 3) {
const CTMfloat x = ctmGetFloatArray(context, CTM_VERTICES)
[i + 0];
const CTMfloat y = ctmGetFloatArray(context, CTM_VERTICES)
[i + 1];
const CTMfloat z = ctmGetFloatArray(context, CTM_VERTICES)
[i + 2];
_radius = MAX(sqrt(x*x + y*y + z*z), _radius);
}
// Release the OpenCTM context.
ctmFreeContext(context);
}
return self;
}
--
David Duncan
Apple DTS Animation and Printing
Regards,
Henri Häkkinen
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Re: odd problems with NSData / OpenGL
On Dec 8, 2009, at 4:52 PM, Henri Häkkinen wrote: I was under the impression that automatic garbage collection was used in Mac OS X 10.5 and over, so retaining and releasing objects was handled automatically? No; you have to turn it on in the application, for two reasons: 1. Tiger and earlier do not support loading apps/libraries/bundles with GC support, optional or not. 2. If you want to make an app with GC support, then all of its libraries bundles must also have at least optional support for GC, or they won't load. 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
Finding process path from Cocoa?
Is there any way I can find what's the path of a given process running? A background process, which cannot be retrieved in [[NSWorkspace sharedWorkspace] launchedApplications]? Thanks! -Laurent. -- Laurent Daudelin AIM/iChat/Skype:LaurentDaudelin http://nemesys.dyndns.org Logiciels Nemesys Software laurent.daude...@gmail.com Photo Gallery Store: http://laurentdaudelin.shutterbugstorefront.com/g/galleries ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Tracking Multiple Touches For Appropriate Label
i'm very grateful for your help. thanks so much for posting such a
complete solution. i'm certain there will be others like myself who
will find your code extremely helpful. thanks again.
On Tue, Dec 8, 2009 at 5:24 PM, mmalc Crawford mmalc_li...@me.com wrote:
On Dec 8, 2009, at 12:33 pm, mmalc Crawford wrote:
Get the logic right...
- (void)setUpTouchHandling {
touchToLabelMapping = CFDictionaryCreateMutable (kCFAllocatorDefault, 5,
kCFTypeDictionaryKeyCallBacks, kCFTypeDictionaryValueCallBacks);
availableLabels = [[NSMutableArray alloc] initWithObjects:touchLabel1,
touchLabel2, touchLabel3, touchLabel4, touchLabel5, nil];
}
- (void)setUpTouchHandling {
touchToLabelMapping = CFDictionaryCreateMutable (kCFAllocatorDefault, 5,
kCFTypeDictionaryKeyCallBacks, kCFTypeDictionaryValueCallBacks);
availableLabels = [[NSMutableArray alloc] initWithObjects:touchLabel1,
touchLabel2, touchLabel3, touchLabel4, touchLabel5, nil];
setUp = YES;
}
... and improve the user experience accordingly:
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
for (UITouch *touch in touches) {
if (touch.view == self) {
UILabel *label = (UILabel
*)CFDictionaryGetValue(touchToLabelMapping, touch);
label.text = @{0, 0};
CFDictionaryRemoveValue (touchToLabelMapping, touch);
[availableLabels addObject:label];
}
}
}
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
for (UITouch *touch in touches) {
if (touch.view == self) {
UILabel *label = (UILabel
*)CFDictionaryGetValue(touchToLabelMapping, touch);
label.text = @{0, 0};
CFDictionaryRemoveValue (touchToLabelMapping, touch);
[availableLabels insertObject:label atIndex:0];
}
}
}
(I'm using setUpTouchHandling so that this will work however you configure
your view or view controller -- ideally you choose a more appropriate
initialisation locus.)
mmalc
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Re: odd problems with NSData / OpenGL
On 12/9/09 1:52 AM, Henri Häkkinen said:
I was under the impression that automatic garbage collection was used in
Mac OS X 10.5 and over, so retaining and releasing objects was handled
automatically?
Mostly automatic. :)
This is the initializer method of my Mesh class (I'm using OpenCTM
library for importing triangle meshes):
- (id)initWithContentsOfFile:(NSString *)path
{
self = [super init];
if (self) {
// Create an OpenCTM context and load the mesh from disk.
CTMcontext context = ctmNewContext(CTM_IMPORT);
ctmLoad(context, [path UTF8String]);
// Check OpenCTM errors.
CTMenum error = ctmGetError(context);
if (error != CTM_NONE) {
NSLog(@OpenCTM error while opening %@: %s (%d), path,
ctmErrorString
(error), error);
ctmFreeContext(context);
[self dealloc];
return nil;
}
// Store the geometry arrays.
_vertices = [NSData dataWithBytes:ctmGetFloatArray(context,
CTM_VERTICES)
length:ctmGetInteger(context, CTM_VERTEX_COUNT) * sizeof
(CTMfloat[3])];
_indices = [NSData dataWithBytes:ctmGetIntegerArray(context,
CTM_INDICES)
length:ctmGetInteger(context, CTM_TRIANGLE_COUNT) * sizeof
(CTMuint[3])];
And these are ivars I guess? If so, they should live as long as 'self' does.
Do you use the 'bytes' method? Are you aware of the issues with it under GC?
--
Sean McBride, B. Eng s...@rogue-research.com
Rogue Researchwww.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
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Re: Finding process path from Cocoa?
On Dec 8, 2009, at 5:03 PM, Laurent Daudelin wrote: Is there any way I can find what's the path of a given process running? A background process, which cannot be retrieved in [[NSWorkspace sharedWorkspace] launchedApplications]? Yes. ([[[NSProcessInfo processInfo] arguments] objectAtIndex:0]) 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: [iPhone] UINavigationController and UINavigationBar
On 8 Dec 2009, at 23:57, Luke the Hiesterman wrote: On Dec 8, 2009, at 3:51 PM, Mike Abdullah wrote: Other alternatives: - Subclass UINavigationController to return a custom view from -navigationBar. - Add a custom subview to the nav bar to do your drawing. I recommend neither of these. It's already been brought up that UINavigationController shouldn't be subclassed, and it isn't meant as a container for arbitrary views, either. If you really aren't satisfied with using a tint color for the background, file an ER asking for an API to provide a background image. Final other option then, +[UIColor colorWithPatternImage:] and set that as the tint. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: odd problems with NSData / OpenGL
On Dec 9, 2009, at 2:05 AM, Sean McBride wrote: And these are ivars I guess? If so, they should live as long as 'self' does. Yes, they are ivars. I was able to resolve the issue by adding invocation to retain: for both _vertices and _indices. So yep, it was a memory management issue. I better read the Memory Management and Garbage Collection guides again. Do you use the 'bytes' method? Are you aware of the issues with it under GC? Yes, I do use their bytes method when accessing their contents in drawRect: method. What are the issues? Regards, Henri Häkkinen ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Improving speed of NSCollectionView scrolling
Read up on Instruments. http://developer.apple.com/tools/performance/ On 8 Dec 2009, at 23:57, PCWiz wrote: Sorry I'm new to Obj-C/Cocoa, how would I do this performance profiling? On 2009-12-08, at 4:50 PM, Mike Abdullah wrote: On 8 Dec 2009, at 23:40, PCWiz wrote: Hi, I am using NSCollectionView for a project in which the collection view is populated with about 200 items, each containing about 4 subviews (image view, and a few text fields). Scrolling is not smooth at all, and lags quite a bit. I'm wondering, would just drawing the text and images as part of the view in the prototype views drawRect method yield any increase in smoothness, rather than using subviews? Why are you asking us this now? It sounds like you haven't done any performance profiling to find out what's actually slow. Do that and then come back. If it suits your needs, IKImageBrowserView is somewhat faster than NSCollectionView. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cocoadev%40mikeabdullah.net This email sent to cocoa...@mikeabdullah.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Improving speed of NSCollectionView scrolling
On Dec 8, 2009, at 3:40 PM, PCWiz wrote: Hi, I am using NSCollectionView for a project in which the collection view is populated with about 200 items, each containing about 4 subviews (image view, and a few text fields). You may want to consider using a different view. NSCollectionView does not do any special things for views that aren't visible, and you get one view for each item. So, in this case, you have at least 5 * 200 = 1000 views. That's a lot. Try IKImageBrowserView or NSTableView/NSOutlineView. corbin ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: odd problems with NSData / OpenGL
On 12/9/09 2:25 AM, Henri Häkkinen said: On Dec 9, 2009, at 2:05 AM, Sean McBride wrote: And these are ivars I guess? If so, they should live as long as 'self' does. Yes, they are ivars. I was able to resolve the issue by adding invocation to retain: for both _vertices and _indices. So yep, it was a memory management issue. I better read the Memory Management and Garbage Collection guides again. retain does nothing with garbage collection, therefore you aren't using garbage collection. Do you use the 'bytes' method? Are you aware of the issues with it under GC? Yes, I do use their bytes method when accessing their contents in drawRect: method. What are the issues? http://lists.apple.com/archives/Cocoa-dev/2008/Jun/msg00603.html -- 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: [iPhone] UINavigationController and UINavigationBar
Il giorno 09/dic/2009, alle ore 00.57, Luke the Hiesterman ha scritto: On Dec 8, 2009, at 3:51 PM, Mike Abdullah wrote: Other alternatives: - Subclass UINavigationController to return a custom view from -navigationBar. - Add a custom subview to the nav bar to do your drawing. I recommend neither of these. It's already been brought up that UINavigationController shouldn't be subclassed, and it isn't meant as a container for arbitrary views, either. If you really aren't satisfied with using a tint color for the background, file an ER asking for an API to provide a background image. So, just to understand, why can I do that through IB but not (legally) via code? The ability to choose a class for the navigation bar in a navigation controller should have been blocked in IB? You says about change Navigation Bar class to my subclass in IB recommend avoiding even using this approach in IB, why? Should I read this in documentation or I would have inferred by readonly navigationBar property (because next time I would not ask the list similar question/problem)? I started working with Cocoa Touch a few days ago and I will not only learn the techniques but also best practices, philosophy and so on... Luke Thanks, Duccio ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: [iPhone] UINavigationController and UINavigationBar
On Dec 8, 2009, at 4:40 PM, Duccio wrote: Il giorno 09/dic/2009, alle ore 00.57, Luke the Hiesterman ha scritto: On Dec 8, 2009, at 3:51 PM, Mike Abdullah wrote: Other alternatives: - Subclass UINavigationController to return a custom view from -navigationBar. - Add a custom subview to the nav bar to do your drawing. I recommend neither of these. It's already been brought up that UINavigationController shouldn't be subclassed, and it isn't meant as a container for arbitrary views, either. If you really aren't satisfied with using a tint color for the background, file an ER asking for an API to provide a background image. So, just to understand, why can I do that through IB but not (legally) via code? The ability to choose a class for the navigation bar in a navigation controller should have been blocked in IB? You says about change Navigation Bar class to my subclass in IB recommend avoiding even using this approach in IB, why? Should I read this in documentation or I would have inferred by readonly navigationBar property (because next time I would not ask the list similar question/problem)? I started working with Cocoa Touch a few days ago and I will not only learn the techniques but also best practices, philosophy and so on... Yes, the readonly is the key. Using IB to set the class of the navBar can be thought of as a sort of work-around to the issue that a readonly property isn't meant to be directly changed. Note, though, that you can safely modify writeable properties of a readonly property. Example: UINavigationController has a navigationBar property, which is readonly, so you can't change it, but... UINavigationBar has a tintColor property which IS writeable, so while you can't provide a different navigationBar, you can modify some properties of the bar itself. Hope that helps, and I wish you the best writing great iPhone code! Luke___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: [iPhone] UINavigationController and UINavigationBar
Il giorno 09/dic/2009, alle ore 01.49, Luke the Hiesterman ha scritto: So, just to understand, why can I do that through IB but not (legally) via code? The ability to choose a class for the navigation bar in a navigation controller should have been blocked in IB? You says about change Navigation Bar class to my subclass in IB recommend avoiding even using this approach in IB, why? Should I read this in documentation or I would have inferred by readonly navigationBar property (because next time I would not ask the list similar question/problem)? I started working with Cocoa Touch a few days ago and I will not only learn the techniques but also best practices, philosophy and so on... Yes, the readonly is the key. Using IB to set the class of the navBar can be thought of as a sort of work-around to the issue that a readonly property isn't meant to be directly changed. Note, though, that you can safely modify writeable properties of a readonly property. Example: UINavigationController has a navigationBar property, which is readonly, so you can't change it, but... UINavigationBar has a tintColor property which IS writeable, so while you can't provide a different navigationBar, you can modify some properties of the bar itself. Yes, I know, but no backgroundImage property :-) And Apple documentations says, for example: It is permissible to modify the barStyle or translucent properties of the navigation bar but you must never change its frame,bounds, or alpha values directly. so very restrictive... Hope that helps, and I wish you the best writing great iPhone code! Many thanks for the tips and the good wishes Luke Duccio ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
resize handle and custom view classes
Hello. In cases where a custom view class occupies the whole NSWindow content area, the resize handle at the bottom right corner gets overdrawn and stays behind the graphics. Is there any easy way of telling Cocoa that the resize handle should be drawn on top of any other graphics? For example, put a NSOpenGLView to a window and make it as large as the window's content area, and draw the OpenGL view with black. The resize handle gets overdrawn. To make it visible, is there any other way than to draw the handle manually with OpenGL? Regards, Henri Häkkinen ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: [iPhone] UINavigationController and UINavigationBar
On Dec 8, 2009, at 3:51 PM, Mike Abdullah wrote: Other alternatives: - Subclass UINavigationController to return a custom view from -navigationBar. - Add a custom subview to the nav bar to do your drawing. I recommend neither of these. It's already been brought up that UINavigationController shouldn't be subclassed, and it isn't meant as a container for arbitrary views, either. If you really aren't satisfied with using a tint color for the background, file an ER asking for an API to provide a background image. Final other option then, +[UIColor colorWithPatternImage:] and set that as the tint. I said when I read: great workaround! But does not work, the Navigation Bar is black: self.navigationController.navigationBar.tintColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@image.png]]; ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Customize the line's color that separates the window content from the title bar?
On 09/12/2009, at 5:59 AM, Michael Abendroth wrote: Unfortunately, when turning on the textured flag in IB, my app mysteriously crashes. When you say mysteriously, what do you mean? What is the stack backtrace? -- Rob Keniger ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Mac OS 10.5 can't find xib-instantiated subclass methods
All of a sudden, an app which I'm building won't display complete windows
when running in Mac OS 10.5. While loading a window, -awakeFromNib is not
found for subclasses that are instantiated in a xib. Examples:
*** -[ContentOutlineView awakeFromNib]: unrecognized selector sent to instance
0x1640c040
*** -[StarkTableColumn awakeFromNib]: unrecognized selector sent to instance
0x166296b0
*** -[FindTableView awakeFromNib]: unrecognized selector sent to instance
0x16866460
Now, since -awakeFromNib is implemented by NSObject, it should NEVER be
unrecognized for any subclass of NSObject, which all of the above classes are...
ContentOutlineView : NSOutlineView
StarkTableColumn : NSTableColumn
FindTableView : NSTableView
These subclasses are implemented in a private framework which is packaged in
the app. Since I have Mac OS 10.5.8 on another partition, I test the same
build, from my Builds/Debug folder, which works perfectly in 10.6.
To make sure that I'm not on drugs, I ran Steve Nygard's class-dump tool in
10.5, and in 10.6, on the same unstripped framework executable, and BBEdit says
the two outputs are identical. Here's a snippet from a class-dump output:
@interface StarkTableColumn : NSTableColumn
{
NSString *userDefinedAttribute;
NSFont *userDefinedMenuFont;
}
- (void)awakeFromNib;
...
You see, class-dump says that -awakeFromNib is implemented. (Of course, it's
an override.) Why can't Mac OS 10.5 find it?
The really odd thing about this is that it seems to have no trouble finding the
subclasses themselves. I mean, it does NOT say Can't find ContentOutlineView,
using NSOutlineView instead.
App and framework target's Base SDK are set to Mac OS 10.5; compiler is gcc
4.2. The affected classes are all subclasses which I have defined in my code,
and are instantiated in a xib.
I recently upgraded my development environment from 10.5 with Xcode 3.1 to 10.6
with Xcode 3.2.1. However I just retested archived builds and found that this
was apparently not quite the cause:
Nov 16: Version built on this day works OK.
Nov 18: Upgraded dev Mac from 10.5 to 10.6.
Nov 23: Version built on this day work OK.
Nov 29: Version built on this day is Bad.
Dec 07: Version built on this day is Bad.
Any guesses as to what might I have done to cause this disaster?
Thank you,
Jerry Krinock___
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Re: Mac OS 10.5 can't find xib-instantiated subclass methods
On Dec 8, 2009, at 6:22 PM, Jerry Krinock je...@ieee.org wrote: Now, since -awakeFromNib is implemented by NSObject, it should NEVER be unrecognized for any subclass of NSObject, which all of the above classes are... Not before 10.6 it isn't. --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: Best way to hook into the run loop?
For those who were helping out with my problems with Undo, and others who might be interested, I've released my Undo implementation here: http://apptree.net/gcundomanager.htm I'd be interested to hear any feedback, criticism, suggestions, praise or whatever. In adding this class to my app, all the problems I was having have simply vanished, which is a great relief. The slightly more surprising thing is that it also quickly helped me to reveal some errors in the logic of how certain parts of the app were doing undo-type things, because I could quickly dump the undo stacks to the log and also single-step through each operation. For that alone, this would have been worth doing. So, thanks for all your help everyone, and I hope this small contribution to the Cocoa community will be useful. --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: Improving speed of NSCollectionView scrolling
Ok, I think I've solved this problem. Corbin, you're right, the problem is too many subviews. What I did to counter this problem is to actually draw most images/text in my prototype NSView subclass rather than using subviews like NSImageView and NSTextField. This yielded a pretty noticeable speed increase. Hope this helps anyone else having similar issues. Key point: just do the drawing yourself. On 2009-12-08, at 5:31 PM, Corbin Dunn wrote: On Dec 8, 2009, at 3:40 PM, PCWiz wrote: Hi, I am using NSCollectionView for a project in which the collection view is populated with about 200 items, each containing about 4 subviews (image view, and a few text fields). You may want to consider using a different view. NSCollectionView does not do any special things for views that aren't visible, and you get one view for each item. So, in this case, you have at least 5 * 200 = 1000 views. That's a lot. Try IKImageBrowserView or NSTableView/NSOutlineView. corbin ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Issue with Input method using IMK
Hi, I am trying to develop an input method using IMKit approach by implementing the below. -(BOOL)inputText:(NSString*) string key:(NSInteger)keyCode modifiers:(NSUInteger)flags client:(id)sender I took the IMK sample available at ADC, and understood the flow by installing and dumping the traces to a file (I had some problems while setting up remote debugging). After I customized the sample to implement the above and replacing the app, I am no longer seeing the calls to inputText. I only see calls to setValue (which is called when the selection is changed). The OS is snow leopard. Is this a known issue? Am I doing something wrong? Thanks for your help! ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Deleting entire sections in UITableView edit mode
I'm creating a UITableView in which users should be able to (among other things) delete not only single rows, but entire sections. When the table is put into edit mode, I would like to show a control in each section header that will allow deletion of the associated section. How hard is this going to be (in particular, getting the custom edit controls' appearance and animations to match those of the existing edit controls)? Has anyone done anything similar before? If it turns out to be too hard, I may just give up and put an always-visible delete this section button in the header or footer of each section. -Michael___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Mac OS 10.5 can't find xib-instantiated subclass methods
On 2009 Dec 08, at 18:36, Kyle Sluder wrote:
Now, since -awakeFromNib is implemented by NSObject
Not before 10.6 it isn't.
Thank you, Kyle. That was the problem, and since the runtime doesn't
distinguish between subclass and superclass, the exception logged sent me
looking down the wrong track.
I believe that, sometime between Nov 18 and Nov 29, I noticed that my
-awakeFromNib implementations were not invoking super, and ignored my
grandmother's advice to never touch working code.
Correct way:
- (void)awakeFromNib {
// Per Discussion in documentation of -[NSObject respondsToSelector:].
// the superclass name in the following must be hard-coded.
if ([NSTableView instancesRespondToSelector:@selector(awakeFromNib)]) {
[super awakeFromNib] ;
}
...
}
___
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Re: Unable to write in InfoPlist.strings file from cpp
Thanks a lot Greg. Interpret as UTF8 solved the problem. -Parimal Das On Tue, Dec 8, 2009 at 8:18 PM, Greg Parker gpar...@apple.com wrote: On Dec 8, 2009, at 5:25 AM, Parimal Das wrote: I am trying to write CFBundleGetInfoString into InfoPlist.strings from cpp code and It is writing successfully. But when i use the InfoPlist.strings in xcode, it gives me a build error /usr/bin/iconv: English.lproj/InfoPlist.strings:1:82: incomplete character or shift sequence Now if i open the .strings file in dashcode (or any other text editor), it shows me the required text correctly, but when i open the same in xcode - it show something similar to chinese/japanese script. Dashcode shows: CFBundleGetInfoString = bla bla bla; Xcode shows: 屲屮䍆䉵湤汥䝥瑉湦潓瑲楮朠㴠≍慩求牯睳敲′⸳⁐䕎呁Ⱐ䍯 Xcode is probably reading InfoPlist.strings with the wrong text encoding. Most likely, your code wrote UTF-8 that Xcode is reading as UTF-16. Open your project in Xcode, Get Info on each InfoPlist.strings file, and set General File Encoding to the encoding your code writes. When Xcode asks what to do with the existing file, choose Reinterpret. -- Greg Parker gpar...@apple.com Runtime Wrangler -- -- Warm Regards, Parimal Das Webyog Softworks ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
Cocoaheads Lake Forest (92630) meeting Wed 12/9/2009 at 7 pm on Detecting Memory Leaks with Instruments
CocoaHeads Lake Forest will be meeting on the second Wednesday of the month. We will be meeting at the Orange County Public Library (El Toro) community room, 24672 Raymond Way, Lake Forest, CA 92630 Please join us from 7pm to 9pm on Wednesday, 12/9. Peter Hosey will be speaking on hunting memory leaks with Instruments. Memory leaks are one of the more persistent problems facing Cocoa developers; finding them will make your users happier and your programs more stable. Check out his blog at http://boredzo.org/blog/ for a variety of articles, including a pre-meeting dinner suggestion for this week. We are planning our topics for next year. If you are able and willing to speak on Core Animation, Open GL, Mac Open Source, or Cocoa 101 for either iPhone or Mac, please contact me. (Personal note - Google Irvine is hiring - feel free to chat with me after the meeting if you are interested.) Bring your comments, your books, and your bugs, and we will leap right in. As always, details and the upcoming meeting calendar can be found at the cocoaheads web site at www.cocoaheads.org in the Lake Forest, CA section. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
