How to catch all mouse clicking (or avoid multiple click filtering in startTrackingAt)
I have implemented a NSButtonCell subclass in the usual way to catch
mouse tracking. I get the startTrackingAt and stopTracking messages
called correctly on the first click of the mouse. However the
startTrackingAt is not quickly called again if I quickly click again
the mouse, such as if I did a double click. I mean, if I perform a
double or triple click I only get one pair of startTrackingAt and
stopTracking calls instead of the desired two or three pairs. So the
desired behaviour is to be able to catch all the mouse clicking
activity in almost real time. What I get instead is some filtering of
the actual mouse clicking. This is the way I implemented the methods
@implementation TrackButtonCell
+ (BOOL)prefersTrackingUntilMouseUp
{
return YES ;
}
- (BOOL)startTrackingAt:(NSPoint)startPoint inView:(NSView *)controlView
{
NSTableView *tableView = (NSTableView *)controlView ;
// do something
NSLog( @mouse down\n) ;
return YES ;
}
- (void)stopTracking:(NSPoint)lastPoint at:(NSPoint)stopPoint inView:
(NSView *)controlView mouseIsUp:(BOOL)flag
{
NSTableView *tableView = (NSTableView *)controlView ;
// do something
NSLog( @mouse up\n ) ;
}
@end
I observed that if I set the faster double click rate in System
Preferences, then I am able to catch all the clicking activity, so
the issue must be related to some multiple click filtering that Cocoa
does before calling the above code.
Sorry for my simple English, it is not my native language though I
try to do my best, I hope you all will understand.
Thanks in advance for any reply.
Joan
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Re: How to catch all mouse clicking (or avoid multiple click filtering in startTrackingAt)
On Apr 25, 2008, at 1:29 AM, Joan Lluch (casa) wrote: I have implemented a NSButtonCell subclass in the usual way to catch mouse tracking. I get the startTrackingAt and stopTracking messages called correctly on the first click of the mouse. However the startTrackingAt is not quickly called again if I quickly click again the mouse, such as if I did a double click. I mean, if I perform a double or triple click I only get one pair of startTrackingAt and stopTracking calls instead of the desired two or three pairs. So the desired behaviour is to be able to catch all the mouse clicking activity in almost real time. What I get instead is some filtering of the actual mouse clicking. This is the way I implemented the methods I'm guessing that this filtering is being done in -[NSControl mouseDown:]. That is, if [theEvent clickCount] is greater than one, it doesn't invoke the cell's trackMouse:inRect:ofView:untilMouseUp: method. You can try subclassing the NSControl in question (presumably an NSButton?), overriding mouseDown:, and passing a different object to [super mouseDown:aDifferentEvent]. You can either create a new NSEvent whose properties are all the same as theEvent, or you can wrap theEvent in a proxy object which forwards all messages faithfully except clickCount, which it intercepts to always return 1. Good luck, Ken ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Core Animation Deadlock
I may have the bug isolated. I fixed a bug in my own code, and the deadlock is no longer happening. It may be related to a situation involving removing a sublayer from it's super. In my code I was removing a layer that I didn't intend to remove, and the deadlock would result. I still think there is an underlying bug in CoreAnimation. Certainly you shouldn't be able to cause a deadlock. If I can isolate the bug to a specific case I will build a test case and submit. On Apr 24, 2008, at 11:11 PM, Colin Cornaby wrote: Enabled NSZombie and friends didn't seem to fix the issue (or log anything.) This isn't going to be too easy to track down. Once I figure out what series of events is triggering it I will try to put together a test case. On Apr 24, 2008, at 9:14 PM, John Harper wrote: On Apr 24, 2008, at 7:38 PM, Colin Cornaby wrote: It looks like NSUIHeartBeat could be attempting to lock something. Although I could be wrong, it may not be related. The render thread got stuck while depth sorting: Thread 11 (process 13823 thread 0x8803): #0 0x90a27d9c in CARenderLayerDepthSortSublayers () #1 0x90a27611 in prepare_layer0 () #2 0x90a27597 in prepare_layer0 () #3 0x90a27597 in prepare_layer0 () #4 0x90a26dd4 in CARenderUpdateAddContext () #5 0x90a25f72 in view_draw () #6 0x90a34f60 in view_display_link () #7 0x90a26936 in link_callback () #8 0x94cc1015 in CVDisplayLink::performIO () #9 0x94cc1641 in CVDisplayLink::runIOThread () #10 0x958e06f5 in _pthread_start () #11 0x958e05b2 in thread_start () this is done while holding the lock the main thread is trying to take. I can't think of any way you could cause this other than heap corruption, or maybe over-releasing objects, so it could be a CA bug. I would try running with NSZombies enabled first; if you don't see anything wrong that way, file a bug report (with a test case showing the hang if possible, otherwise there's probably no way we can debug it…) John ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/colin.cornaby%40mac.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
One pixel width. One.
I am trying to draw a line with 1 pixel width. No matter whether the view is scaled or scrolled, I want to see a 1 pixel thick line. I scale the view with NSRect frameSize = [self frame].size; NSSize newSize = NSMakeSize(frameSize.width / mScaleFactor, frameSize .height / mScaleFactor); [self setBoundsSize:newSize]; In the drawRect method I code [[NSGraphicsContext currentContext] setShouldAntialias:NO]; [NSBezierPath setDefaultLineWidth:1.0 / mScaleFactor]; [NSBezierPath strokeLineFromPoint:NSMakePoint(0.0, 10.0 toPoint:NSMakePoint(10.0, 10.0)]; I works pretty well, but sometimes, depending on the scroll position or the mScaleFactor, I get a line with 2 pixels width. Even with a mScaleFactor = 1, if I scroll the view, sometimes it looks with 2 pixels width. I even tried to always set the width to 0.1 and mScaleFactor to always 1. Same result. And I even tried to always set bounds Origin and bounds Size to (int) values. Same result. What do I miss? Best Regards -- Lorenzo email: [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Complex data for webservices
Hi Jeff, thanks for writing http://iphonedevelopment.blogspot.com/2008/04/web-services-fun_18.html It is a very good writeup of many of the things we've discussed. :-) What's very relevant to our discussion is the fact that you don't mention having to delete half of the generated code. I've ran WSMakeStubs -x ObjC -name WeatherService -url http://www.weather.gov/forecasts/xml/DWMLgen/wsdl/ndfdXML.wsdl on my system and sure enough, it creates only a single set of interfaces with corresponding implementations, instead of two that are generated when I do the same with my service: WSMakeStubs -x ObjC -name DummyStubs -url http://78.157.102.46:2234/DummyWS/Service1.asmx?WSDL (if you do a quick grep interface DummyStubs.*|sort after having generated them, it will be obvious they are double up) Another interesting thing is that you mention using NSData, so based on your example I created the equivalent for my service with different kinds of input parameters: id testStr = [myService testString:[[NSData alloc] init]]; NSLog(@Found data 1: %@, testStr); testStr = [myService testString:@]; NSLog(@Found data 2: %@, testStr); testStr = [myService testString:[[NSObject alloc] init]]; NSLog(@Found data 3: %@, testStr); testStr = [myService testString:[[NSDictionary alloc] init]]; NSLog(@Found data 4: %@, testStr); Again, I get nil as an answer: Found data 1: (null) Found data 2: (null) Found data 3: (null) Found data 4: (null) Again the fault is: System.Web.Services.Protocols.SoapException: Server did not recognize the value of HTTP Header SOAPAction: SOAPAction. at System.Web.Services.Protocols.Soap11ServerProtocolHelper.RouteRequest() at System .Web .Services.Protocols.SoapServerProtocol.RouteRequest(SoapServerMessage message) at System.Web.Services.Protocols.SoapServerProtocol.Initialize() at System.Web.Services.Protocols.ServerProtocolFactory.Create(Type type, HttpContext context, HttpRequest request, HttpResponse response, Booleanamp; abortProcessing) And as we discussed, the following is set in the header: Soapaction: SOAPAction A final thing I wondered about was In many cases, complex objects expect an NSDictionary with the xml tag name used as the key and the tag's contents as the corresponding object. What do you mean by that? Do you have a code example you could clarify it with? Thanks again Nik ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: One pixel width. One.
Try offsetting the final result by 0.5, so that you draw the actual pixel, not anti-alias across two. G. On 25 Apr 2008, at 5:19 pm, Lorenzo wrote: I am trying to draw a line with 1 pixel width. No matter whether the view is scaled or scrolled, I want to see a 1 pixel thick line. I scale the view with NSRect frameSize = [self frame].size; NSSize newSize = NSMakeSize(frameSize.width / mScaleFactor, frameSize .height / mScaleFactor); [self setBoundsSize:newSize]; In the drawRect method I code [[NSGraphicsContext currentContext] setShouldAntialias:NO]; [NSBezierPath setDefaultLineWidth:1.0 / mScaleFactor]; [NSBezierPath strokeLineFromPoint:NSMakePoint(0.0, 10.0 toPoint:NSMakePoint(10.0, 10.0)]; I works pretty well, but sometimes, depending on the scroll position or the mScaleFactor, I get a line with 2 pixels width. Even with a mScaleFactor = 1, if I scroll the view, sometimes it looks with 2 pixels width. I even tried to always set the width to 0.1 and mScaleFactor to always 1. Same result. And I even tried to always set bounds Origin and bounds Size to (int) values. Same result. What do I miss? Best Regards -- Lorenzo email: [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/graham.cox%40bigpond.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Failure on unarchiving a NSBezierPath
Thanks. But it seems you haven't read to the end. As I said in my first mail: Besides, I found the value returned by [NSKeyedUnarchiver unarchiveObjectWithData:data] was nil, but I didn't understand why, since it was normal when I saved the file using [NSKeyedArchiver archivedDataWithRootObject:view.drawing]. On Fri, Apr 25, 2008 at 3:20 AM, Jens Alfke [EMAIL PROTECTED] wrote: I suspect what happened is that NSKeyedArchiver returned nil for some reason, and the caller of that method then looked at *outError to find the reason for the error; but you didn't store anything in there, so it got whatever happened to be in that variable, which in this case may have been a pointer to the NSDocumentController. So try adding a test for nil to your save method. It looks like that's where the problem is. —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 [EMAIL PROTECTED]
Core Animation Flickering
I have a CALayer subclass, set to redraw on bounds change, with the
following draw code (I don't expect it to be meaningful, but I'm
pasting it here for the sake of completeness.)
- (void)drawInContext:(CGContextRef)ctx
{
CGRect bounds = CGContextGetClipBoundingBox(ctx);
CGContextDrawImage(ctx, CGRectMake(0,0,18,
bounds.size.height-18),sideImage);
CGContextDrawImage(ctx, CGRectMake(0,bounds.size.height-18,18,
18),cornerImage);
CGContextDrawImage(ctx,
CGRectMake(18,bounds.size.height-18,bounds.size.width-36,18),topImage);
CGContextScaleCTM (ctx, -1.0, 1.0);
CGContextTranslateCTM ( ctx, -bounds.size.width, 0.0);
CGContextDrawImage(ctx,
CGRectMake(0.0,bounds.size.height-18,18,18),cornerImage);
CGContextDrawImage(ctx,
CGRectMake(0.0,0.0,18,bounds.size.height-18),sideImage);
}
It's parent view is set up to change the layers frame to always fill
the contents of the entire view on resizeWithOldSuperviewSize:. This
works great, except for a really annoying flicker that occurs once
every few seconds while the view is resizing. Every layer in the view
flickers in and out (stuff like background colors doesn't flicker).
Did I miss some drawing cleanup or something else obvious here?
(I've tried doing this automatically with constraint managers, same
problem...)
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Using a real view in a Table cell
Hi,
I need to have something that behaves like a table where each cell
could be a quite complex view with standard controls and sub views
etc. It needs to run on 10.4 and above, so NSCollectionView is not an
option.
I seem to have two choices:
1. Implement my own custom view that is independent of NSTableView
that allows subviews to be stacked on top of each other and maintains
it own table-like behaviours (selections, column dragging etc).
2. Use an NSTableView and massage each cell into being a view.
Being adventurous, I tried option 2 first to see what I could get for
free and have come up with something that seems to work.
An example is available at http://idisk.mac.com/mattg/Public/ViewCell.zip
To summarize, I use a custom column subclass which implements:
- (id)dataCellForRow:(int)row
{
NSView* view = [delegate viewForColumnIdentifier:[self identifier]
row:row];
ViewCell* cell = [[ViewCell alloc] initWithView:view];
return cell;
}
and a custom cell class:
@interface ViewCell : NSCell
{
NSView* _view;
}
-(id) initWithView:(NSView*)view;
-(void) setView:(NSView*)view;
-(NSView*) view;
@end
@implementation ViewCell
-(id) initWithView:(NSView*)view
{
if ((self = [super initImageCell:nil]) != nil)
[self setView:view];
return self;
}
-(void) dealloc
{
[self setView:nil];
[super dealloc];
}
-(void) setView:(NSView*)newView
{
if (newView != _view)
{
[_view release];
_view = [newView retain];
}
}
-(NSView*) view
{
return _view;
}
- (void)drawInteriorWithFrame:(NSRect)cellFrame inView:(NSView
*)controlView
{
NSView* view = [self view];
if (!view)
return;
if (![view superview])
[controlView addSubview:view];
NSRect oldFrame = [view frame];
if (!NSEqualRects(oldFrame, cellFrame))
{
// [controlView setNeedsDisplayInRect:oldFrame]; // Not needed?
[view setFrame:cellFrame];
}
}
@end
There is also a controller which is the table's delegate and
datasource and knows how to get the real view for a cell
@implementation AttributesController
- (int)numberOfRowsInTableView:(NSTableView *)aTableView
{
return 2; // The sample app only does 2 rows
}
-(NSView*) viewForColumnIdentifier:(id)identifier row:(int)row
{
NSView* result = nil;
if ([identifier isEqualToString:@attributes])
{
result = row == 0 ? attributesView : attributesView2;
}
return result;
}
- (float)tableView:(NSTableView *)tableView heightOfRow:(int)row
{
NSView* view = [self viewForColumnIdentifier:@attributes row:row];
float result = NSHeight([view bounds]);
return result;
}
As you can see, drawInteriorWithFrame is being quite sneaky. It is
adding the real view associated with the cell as a subview of the
parent table view. The cell itself never does any drawing, it just
keeps the location of these extra views in sync with the cells they
represent.
However all of this cleverness set off two alarm bells:
1. This looks a bit fragile and maybe some future update to
NSTableView will break this.
2. Whenever I think I am being far too cunning it usually means I have
overlooked a much simpler way to do what I want.
Does anyone else have any suggestions
Thanks
Matt Gough
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Re: Failure on unarchiving a NSBezierPath
On Fri, Apr 25, 2008 at 4:11 AM, an0 [EMAIL PROTECTED] wrote: Thanks. But it seems you haven't read to the end. As I said in my first mail: Besides, I found the value returned by [NSKeyedUnarchiver unarchiveObjectWithData:data] was nil, but I didn't understand why, since it was normal when I saved the file using [NSKeyedArchiver archivedDataWithRootObject:view.drawing]. But you apparently haven't comprehended Jens' message. You're not setting *outError to anything, so whoever is calling your method is seeing that you've returned NO and is expecting whatever it passed in as outError to point to an NSError object. Unfortunately this is not the case and whatever was in that memory location is receiving bogus messages -- particularly, -localizedFailureReason, which is an NSError method. In short, you're breaking the contract for messages which take an NSError**. Set *outError to an NSError object (or nil if you're lazy) if you're going to return a value that signifies an error. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Initial value of on/off buttons
I have five textured NSButtons that are set to operate in On Off mode. All of them are value-bound to different bools in my application. Somehow the first button starts in the On-state and the others in the off state, no matter which button I bind to which bool. If I remove the bindings, the buttons start in the On-state. Setting the bools in awakeFromNib does not affect the state of the buttons. Clicking the buttons however causes my bools to have the correct values. What am I doing wrong? How can I at least set the initial state of my buttons? (They are all On in IB) I just noticed that removing the binding from the first button and adding that SAME binding again causes it to behave like the other buttons. I can restore the On-behavior by undoing that change. There has to be a bug involved, however the only thing I want is that all buttons start in the On-state without needing an outlet in my controller. I am thankful for suggestions, Yann ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
Well, I'm glad I had an excuse to play around with Quartz Composer; I knew about it but had never spent any time with it, very cool! Unfortunately, it doesn't solve my immediate problem. As far as I can tell, compositions won't play streaming video at all. They work great with movies from files, and with local live sources (iSight, DV). But giving the Image With Movie patch an .sdp file just results in a static QuickTime logo, it never shows any actual video. Now I have at least three different methods for adding overlays to pre-recorded video, but none of those seem able to deal with RTSP/RTP streaming video. I'm going out on a limb here and conclude this isn't just one or the other of the APIs having an issue, rather it is a fundamental limitation in QuickTime, which can't (or won't) break out individual frames for compositing when it is playing streaming video. There are still things I haven't tried (i.e. Core Animation), but unfortunately I'm out of time to spend on this. I have a stop- gap solution in the separate overlay window approach, which works on anything, the drawback being a lousy frame rate if the overlay is in motion. But it is better than nothing, and I can have my app use that only when it is playing streaming video, switching to one of the better methods for other sources. Thanks very much to everyone for the suggestions and help! Bob On Apr 24, 2008, at 6:34 PM, douglas a. welton wrote: Bob, Scott took the words right out of my keyboard... ;^} Have you taken a look at the QCTV sample code? It does almost exactly what you want. regards, douglas On Apr 24, 2008, at 9:16 PM, Scott Anguish wrote: On Apr 24, 2008, at 9:05 PM, Bob Smith wrote: In my case all I want to do is be able to add a scrolling text overlay to whatever video is being played. My app is an informational video kiosk display driver, it's meant to run mostly unattended from playlists of images and pre-recorded video, but with occasional scheduled live segments from streaming video cameras on the local network. I'll take a look at Core Animation, however one of my limitations is the app has to run under Tiger, and I thought most of the CA stuff was new to Leopard. Would using Quartz Composer directly be an option for your app? I don't know about the performance issues, but overlaying text on top of video should be easy this way. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Failure on unarchiving a NSBezierPath
Sorry for my careless, I though Jens was talking about the `read' part. However, as I said, the error occurred when reading not when writing. So it was not because NSKeyedArchiver returned nil but because `[NSKeyedUnarchiver unarchiveObjectWithData:data]' returned nil, and my `readFromData:(NSData *)data ofType:(NSString *)typeName error:(NSError **)outError' returned NO without setting `outError' (thanks Jens let me learn this point). OK. Now I'm just wondering why `[NSKeyedUnarchiver unarchiveObjectWithData:data]' returnes nil, since I've saved the data without any error as I can see. Thanks a lot if you or others can give me some more hint. On Fri, Apr 25, 2008 at 4:29 PM, Kyle Sluder [EMAIL PROTECTED] wrote: On Fri, Apr 25, 2008 at 4:11 AM, an0 [EMAIL PROTECTED] wrote: Thanks. But it seems you haven't read to the end. As I said in my first mail: Besides, I found the value returned by [NSKeyedUnarchiver unarchiveObjectWithData:data] was nil, but I didn't understand why, since it was normal when I saved the file using [NSKeyedArchiver archivedDataWithRootObject:view.drawing]. But you apparently haven't comprehended Jens' message. You're not setting *outError to anything, so whoever is calling your method is seeing that you've returned NO and is expecting whatever it passed in as outError to point to an NSError object. Unfortunately this is not the case and whatever was in that memory location is receiving bogus messages -- particularly, -localizedFailureReason, which is an NSError method. In short, you're breaking the contract for messages which take an NSError**. Set *outError to an NSError object (or nil if you're lazy) if you're going to return a value that signifies an error. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Cocoa-dev Digest, Vol 5, Issue 670
Message: 9 Date: Thu, 24 Apr 2008 13:43:26 +1200 From: David Wilson [EMAIL PROTECTED] I'm running Xcode 3.1 (actually iPhone SDK Beta 3) on Mac OS 10.5.2 My application doesn't launch when I click the run button in Xcode (note it is NOT an iPhone app). It's an application to control USB devices. XCode tells me that the application has launched, yet it does not appear in the doc. David -- I have been irritated by this problem for the last couple of weeks, but I think I have fixed it Like you, I am also using iPhone SDK Beta but trying to run a non- iPhone app from within xCode. I have just upgraded to Beta 4 which I hoped would fix the problem but it didn't! HOWEVER, I have found a solution which is to look at the Stop on Debugger()/DebugStr() menu item in the Run menu. For some reason, this got checked when I installed the iPhone SDK beta. If you uncheck this item, then sanity will be restored, and xCode will start behaving normally again. It worked for me: hope it works for you. Dave ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: One pixel width. One.
On 4/25/08, Lorenzo [EMAIL PROTECTED] wrote: I am trying to draw a line with 1 pixel width. No matter whether the view is scaled or scrolled, I want to see a 1 pixel thick line. I highly, highly recommend reading this article: http://wincent.com/a/about/wincent/weblog/archives/2007/01/offbyone.php I wanted to do the exact same thing in my app last year and this article saved the day for me. HTH, Joe Goh FunkeeMonk Technology http://www.funkeemonk.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
Hey, thank you very much. it helped a lot. but i still got one problem. The image I derive from NSBitmapImageRep initWithCIImage is much smaller than the original pixel size of the video. Because of that i can't use this method for production use. Is there another way to do this? regards, nikolai Nikolai, QTMovieView has a delegate method - (CIImage*) view: (QTMovieView *)Target_View willDisplayImage: (CIImage *)New_Image This method gives you a CIImage to play with before it is displayed in the Target_View. Check the header file for QTMovieView.h (near the bottom). I think the the MyMovieFilter sample code uses this method. Note: Depending on what type of analysis you are doing you may need to convert the CIImage into a pixel-based format. If that is too slow you may want to get friendly with QTVisualContextIsNewImageAvailable() and the Display Link... check out the CIVideoDemoGL sample code. regards, douglas On Apr 23, 2008, at 12:19 PM, Nikolai Hellwig wrote: Hi, I've done some image analysing software for QTKit Capture. It works fine. Now i need to use this for a quicktime movie. I can playback the quicktime movie, but i can't find any delegate which tells my application, that a new frame is rendered. If i can get this information i could grab this frame in order to analyse it. can anyone tell me how to do it? I don't want the user to click grabFrame or something like that. regards Nikolai Hellwig Mit freundlichen Grüßen Nikolai Hellwig [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
NSBitmapImageRep bitmapData contains all zeroes?
I am working on a Computer Vision project that uses real-time image processing. I am grabbing frames using QTKit, then converting the resulting CVImageBufferRef into a CIImage, and then converting that into an NSBitmapImageRep. I know that my resulting NSBitmapImageRep is fine, since I am viewing it by sticking it in an NSImage and then popping that into an NSImageView (the QTKit Capture Preview has a 1/2 second lag time - which is unacceptable for this project). Everything works as it should, but when I go to grab the raw pixel data from the NSBitmapImageRep like so: unsigned char *bitmapData = [self bitmapData]; (btw it says self because this is from a category of NSBitmapImageRep) The resulting array, bitmapData, is an array of zeroes! Every pixel sample in bitmapData is zero, yet I can draw the image and the image IS there. What's going on? Any suggestions as to what I may be overlooking? Thanks in advance, Nick Forge ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
Bob, re: Quartz Composer Did you check the Asynchronous Mode checkbox on the Movie Loader patch's Settings panel? This box is specifically available to allow for playback of streaming material. re: QT flaw The supposition that QuickTime is fundamentally flawed is not accurate. If you had time to explore, I would point you in the direction of the QT Broadcaster interface and the sample code available for receiving (and parsing) RTSP/RTP streams. If you don't have time, don't go down this path - the API is cryptic (at best) and very poorly documented. later, douglas On Apr 25, 2008, at 5:17 AM, Bob Smith wrote: Well, I'm glad I had an excuse to play around with Quartz Composer; I knew about it but had never spent any time with it, very cool! Unfortunately, it doesn't solve my immediate problem. As far as I can tell, compositions won't play streaming video at all. They work great with movies from files, and with local live sources (iSight, DV). But giving the Image With Movie patch an .sdp file just results in a static QuickTime logo, it never shows any actual video. Now I have at least three different methods for adding overlays to pre-recorded video, but none of those seem able to deal with RTSP/ RTP streaming video. I'm going out on a limb here and conclude this isn't just one or the other of the APIs having an issue, rather it is a fundamental limitation in QuickTime, which can't (or won't) break out individual frames for compositing when it is playing streaming video. There are still things I haven't tried (i.e. Core Animation), but unfortunately I'm out of time to spend on this. I have a stop-gap solution in the separate overlay window approach, which works on anything, the drawback being a lousy frame rate if the overlay is in motion. But it is better than nothing, and I can have my app use that only when it is playing streaming video, switching to one of the better methods for other sources. Thanks very much to everyone for the suggestions and help! Bob On Apr 24, 2008, at 6:34 PM, douglas a. welton wrote: Bob, Scott took the words right out of my keyboard... ;^} Have you taken a look at the QCTV sample code? It does almost exactly what you want. regards, douglas On Apr 24, 2008, at 9:16 PM, Scott Anguish wrote: On Apr 24, 2008, at 9:05 PM, Bob Smith wrote: In my case all I want to do is be able to add a scrolling text overlay to whatever video is being played. My app is an informational video kiosk display driver, it's meant to run mostly unattended from playlists of images and pre-recorded video, but with occasional scheduled live segments from streaming video cameras on the local network. I'll take a look at Core Animation, however one of my limitations is the app has to run under Tiger, and I thought most of the CA stuff was new to Leopard. Would using Quartz Composer directly be an option for your app? I don't know about the performance issues, but overlaying text on top of video should be easy this way. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
Nikolai, Can you post a snippet of the code you are using for the conversion? regards, douglas On Apr 25, 2008, at 9:04 AM, Nikolai Hellwig wrote: Hey, thank you very much. it helped a lot. but i still got one problem. The image I derive from NSBitmapImageRep initWithCIImage is much smaller than the original pixel size of the video. Because of that i can't use this method for production use. Is there another way to do this? regards, nikolai Nikolai, QTMovieView has a delegate method - (CIImage*) view: (QTMovieView *)Target_View willDisplayImage: (CIImage *)New_Image This method gives you a CIImage to play with before it is displayed in the Target_View. Check the header file for QTMovieView.h (near the bottom). I think the the MyMovieFilter sample code uses this method. Note: Depending on what type of analysis you are doing you may need to convert the CIImage into a pixel-based format. If that is too slow you may want to get friendly with QTVisualContextIsNewImageAvailable() and the Display Link... check out the CIVideoDemoGL sample code. regards, douglas On Apr 23, 2008, at 12:19 PM, Nikolai Hellwig wrote: Hi, I've done some image analysing software for QTKit Capture. It works fine. Now i need to use this for a quicktime movie. I can playback the quicktime movie, but i can't find any delegate which tells my application, that a new frame is rendered. If i can get this information i could grab this frame in order to analyse it. can anyone tell me how to do it? I don't want the user to click grabFrame or something like that. regards Nikolai Hellwig Mit freundlichen Grüßen Nikolai Hellwig [EMAIL PROTECTED] Sands Logo Text klein.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 [EMAIL PROTECTED]
Re: NSBitmapImageRep bitmapData contains all zeroes?
Hi, how do you convert CIImage to NSBitmapImageRep ? Raphael On Fri, Apr 25, 2008 at 4:34 PM, Nick Forge [EMAIL PROTECTED] wrote: I am working on a Computer Vision project that uses real-time image processing. I am grabbing frames using QTKit, then converting the resulting CVImageBufferRef into a CIImage, and then converting that into an NSBitmapImageRep. I know that my resulting NSBitmapImageRep is fine, since I am viewing it by sticking it in an NSImage and then popping that into an NSImageView (the QTKit Capture Preview has a 1/2 second lag time - which is unacceptable for this project). Everything works as it should, but when I go to grab the raw pixel data from the NSBitmapImageRep like so: unsigned char *bitmapData = [self bitmapData]; (btw it says self because this is from a category of NSBitmapImageRep) The resulting array, bitmapData, is an array of zeroes! Every pixel sample in bitmapData is zero, yet I can draw the image and the image IS there. What's going on? Any suggestions as to what I may be overlooking? Thanks in advance, Nick Forge ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/raphael.sebbe%40gmail.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Weird Problem With CGImage
This bug in my code has been driving me nuts for days, but I have finally isolated the issue - only problem now is I don't understand what I'm doing wrong. I have a CGImage that I want to get the raw data bytes for. My code is below: CGImageRef sectionToCache = CGImageCreateWithImageInRect(backingStore, CGRectMake(x, y, cx, cy)); NSLog(@CGImage to cache has dimensions %d x %d and %d bytes per row, CGImageGetWidth(sectionToCache), CGImageGetHeight(sectionToCache), CGImageGetBytesPerRow(sectionToCache)); CFDataRef dataRef = CGDataProviderCopyData(CGImageGetDataProvider(sectionToCache)); NSLog(@Length of cachedImage data: %d, CFDataGetLength(dataRef)); When the code runs, the log spits out the following: CGImage to cache has dimensions 417 x 234 and 1668 bytes per row Length of cachedImage data: 6672 What is killing me here is that the CGImage has dimensions 417x234 and 1668 bytes per row. That to me means that the CFDataRef that I am obtaining should be 390,312 bytes (234 x 1668). But the CFDataRef is only 6,672 bytes which is nowhere close to what I think I should be getting. So I must be doing something wrong in trying to get the bitmap data, but I'm not sure what else to do and I even found some Apple docs with an example doing the exact same thing that I am doing. Can anybody provide some insight on this? Thanks everybody. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
starting...
Hey,
I´m a new developer in iphone´s world, develop in actionScript (flash OOP)
and build adGames and python too.
I always wanted to develop for mobile plataform, and now, with the iphone,
wich is a good gadget, I decided to join in new and long journey.
I´m studying objective-C around one month and have some doubts.
Follows the code with the doubts:
*Classe.h
*#import UIKit/UIKit.h //importa a classe UIKit
//constuctor of the class with type NSObject that extends a
UIApplicationDelegate, it is right?
@interface Classe : NSObject UIApplicationDelegate {
//variable type UIWindow (I think that create a screen application)
IBOutlet UIWindow *window;
//I don´t know what id IBOutlet
}
//I don't understand this line
@property (nonatomic, retain) UIWindow *window;
@end
*Classe.m*
//importa o header (que seria o contructor da classe certo?)
//import the header (is that a constructor of the class?)
#import teste2AppDelegate.h
//implement the interface in content
@implementation teste2AppDelegate;
//instance window in content?
@synthesize window;
//metodo chamado quando o aplicativo é executado e não retorna nada(void),
ele recebe como parâmetro um UIApplicaton (pq?)
//metod called when the application run, don´t return nothing(void), recives
one parameter UIApplicaton
- (void)applicationDidFinishLaunching:(UIApplication *)application {
//create a textField
//Is it the same that var _txt:UITextField = new UITextField() ???
UITextField *_txt = [[UITextField alloc] init];
[_txt setTextColor:[UIColor redColor]]; //set color in red color, this color
return from UIColor class
[_txt setText:@teste]; //set text
}
//Why do is metod ?
- (void)dealloc {
[window release];
[super dealloc];
}
@end
In my journey I understand that execute one function I use
[nameFunction:param1, p:param2. Pp:param3], right?
When compiling this script don't show error and open iPhone emulator, but
show a whit screen and not show the text.
Ok, any help will be good help.
Thanks…
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Re: starting...
I´m a new developer in iphone´s world, develop in actionScript (flash OOP) and build adGames and python too. The iPhone SDK is under non-disclosure agreement as you should know if you've downloaded it. It cannot be discussed publicly. -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: starting...
On Fri, Apr 25, 2008 at 3:59 PM, Sidnei Vladisauskis [EMAIL PROTECTED] wrote: I always wanted to develop for mobile plataform, and now, with the iphone, wich is a good gadget, I decided to join in new and long journey. I´m studying objective-C around one month and have some doubts. A couple of things: 1) You can't discuss iPhone development here. When you downloaded and installed the iPhone SDK, you agreed to a license which prohibits you from discussing it in public forums like this one. 2) There are some pretty fundamental gaps in your understanding of Objective-C. Coming from a scripting background, you should probably learn C first. Search the archives for recommendations on books and online tutorials. Hamish ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
How do I use a WebView in a modal dialog?
Folks, How can I use a WebView in a modal dialog? I understand that WebViews don't work in the modal runloop mode, so is there a way to fake this? Run my own nextEventMatchingMask: loop (I have tried this with very limited success)? Run the window containing the WebView in a separate thread with its own run loop? Get rid of WebView altogether and go straight to WebFrame (this sounds hard)? Help? Thanks! - Dave.S ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Application Launch (or doesn't Launch as such) (David Wilson)
HOWEVER, I have found a solution which is to look at the Stop on Debugger()/DebugStr() menu item in the Run menu. For some reason, this got checked when I installed the iPhone SDK beta. If you uncheck this item, then sanity will be restored, and xCode will start behaving normally again. It worked for me: hope it works for you. OMFG!!!111 :D :D :D I unchecked that, relaunched Xcode, and now I can run my app without gdb again for the first time in months. Thanks for the tip! That's one minor-but-frequent annoyance out of my life... Did you file a bug report against Xcode on this issue, including the fix/workaround? Well, no, I didn't I'm a relative xCode newbie, and I wasn't 100% sure that I wasn't doing something dumb. ;-) I do get the impression (from what others have said) that this problem only affects non-iPhone projects that were created *before* installing the iPhone SDK. Dave ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSBitmapImageRep bitmapData contains all zeroes?
What do you want to do with you captured images ? Just display them or record them ? If you just want to display it, you should use an NSOpenGLView and draw the CVBuffer or the CIImage directly. If this is for recording or processing the pixels (without CoreImage), you can try to generate a CVPixelBuffer (using the ARGB pixel format) instead of CVOpenGLTextureBuffer. You can do this using QTPixelBufferContextCreate() instead of QTOpenGLTextureContextCreate() to create your drawing context. A CVPixelBuffer allow you to access directly to the bitmapData (without using CIImage and NSBitmapImageRep). You can check the QTPixelBufferVCToCGImage sample code to see how to setup this kind of context. Le 25 avr. 08 à 16:49, Raphael Sebbe a écrit : Hi, how do you convert CIImage to NSBitmapImageRep ? Raphael On Fri, Apr 25, 2008 at 4:34 PM, Nick Forge [EMAIL PROTECTED] wrote: I am working on a Computer Vision project that uses real-time image processing. I am grabbing frames using QTKit, then converting the resulting CVImageBufferRef into a CIImage, and then converting that into an NSBitmapImageRep. I know that my resulting NSBitmapImageRep is fine, since I am viewing it by sticking it in an NSImage and then popping that into an NSImageView (the QTKit Capture Preview has a 1/2 second lag time - which is unacceptable for this project). Everything works as it should, but when I go to grab the raw pixel data from the NSBitmapImageRep like so: unsigned char *bitmapData = [self bitmapData]; (btw it says self because this is from a category of NSBitmapImageRep) The resulting array, bitmapData, is an array of zeroes! Every pixel sample in bitmapData is zero, yet I can draw the image and the image IS there. What's going on? Any suggestions as to what I may be overlooking? Thanks in advance, Nick Forge ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/raphael.sebbe%40gmail.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/devlists%40shadowlab.org This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Core Animation Flickering
On Apr 25, 2008, at 1:20 AM, Colin Cornaby wrote: I have a CALayer subclass, set to redraw on bounds change, with the following draw code (I don't expect it to be meaningful, but I'm pasting it here for the sake of completeness.) … It's parent view is set up to change the layers frame to always fill the contents of the entire view on resizeWithOldSuperviewSize:. This works great, except for a really annoying flicker that occurs once every few seconds while the view is resizing. Every layer in the view flickers in and out (stuff like background colors doesn't flicker). Did I miss some drawing cleanup or something else obvious here? One thing to check for is that the bounds of one of your layers isn't being set to empty temporarily. Running your program with the CA_PRINT_TREE environment variable set to 1 is a good way to debug that, you can scan the logs for anything that looks suspicious. If you don't see anything, file a radar with a test case and we will look into it… John ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Weird Problem With CGImage
Using CGImageRef is not a realiable way to access pixel data of an image. You should create a CGBitmapContextCreate() instead and draw the part you want in this context. http://developer.apple.com/qa/qa2007/qa1509.html Le 25 avr. 08 à 16:51, Carter R. Harrison a écrit : This bug in my code has been driving me nuts for days, but I have finally isolated the issue - only problem now is I don't understand what I'm doing wrong. I have a CGImage that I want to get the raw data bytes for. My code is below: CGImageRef sectionToCache = CGImageCreateWithImageInRect(backingStore, CGRectMake(x, y, cx, cy)); NSLog(@CGImage to cache has dimensions %d x %d and %d bytes per row, CGImageGetWidth(sectionToCache), CGImageGetHeight(sectionToCache), CGImageGetBytesPerRow(sectionToCache)); CFDataRef dataRef = CGDataProviderCopyData(CGImageGetDataProvider(sectionToCache)); NSLog(@Length of cachedImage data: %d, CFDataGetLength(dataRef)); When the code runs, the log spits out the following: CGImage to cache has dimensions 417 x 234 and 1668 bytes per row Length of cachedImage data: 6672 What is killing me here is that the CGImage has dimensions 417x234 and 1668 bytes per row. That to me means that the CFDataRef that I am obtaining should be 390,312 bytes (234 x 1668). But the CFDataRef is only 6,672 bytes which is nowhere close to what I think I should be getting. So I must be doing something wrong in trying to get the bitmap data, but I'm not sure what else to do and I even found some Apple docs with an example doing the exact same thing that I am doing. Can anybody provide some insight on this? Thanks everybody. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/devlists%40shadowlab.org This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: One pixel width. One.
Joe, thank you. That page helps. I succeeded, but I had to set the width to
0.01 because if I set it to zero I get a 2 pixels thick line when the scale
is different than 1.0. Don't know why. Please follow me.
After scaling the view with
scale = 1.33;
[self setBoundsSize:NSMakeSize((int)([self frame].size.width / scale),
(int)([self frame].size.height / scale))];
I get these logs in the drawRect method
scale 1.33
frame {{0, 0}, {1166, 1253}},
bounds {{-140, -50}, {875, 941}}
As you can see the frame and bounds values are all integers now.
Now I draw a vertical line
[NSBezierPath setDefaultLineWidth:0.0];
bot = NSMakePoint(0.5, 0.5);
top = NSMakePoint(0.5, 9.5);
[NSBezierPath strokeLineFromPoint:bot toPoint:top];
And the lines looks 2 pixels thick. Dam! So I tried to set
[NSBezierPath setDefaultLineWidth:0.01 / scale];
And it worked at any scale. Can't guess why! With 0.001 I don't see any
line. Strange story, it works with zero, with 0.01/1.33 and it doesn't work
with 0.001 / 1.33. Any idea?
Best Regards
--
Lorenzo
email: [EMAIL PROTECTED]
From: Joe Goh [EMAIL PROTECTED]
Date: Fri, 25 Apr 2008 17:31:17 +0800
To: cocoa-dev@lists.apple.com, Lorenzo [EMAIL PROTECTED]
Subject: Re: One pixel width. One.
On 4/25/08, Lorenzo [EMAIL PROTECTED] wrote:
I am trying to draw a line with 1 pixel width. No matter whether the view is
scaled or scrolled, I want to see a 1 pixel thick line.
I highly, highly recommend reading this article:
http://wincent.com/a/about/wincent/weblog/archives/2007/01/offbyone.php
I wanted to do the exact same thing in my app last year and this
article saved the day for me.
HTH,
Joe Goh
FunkeeMonk Technology
http://www.funkeemonk.com/
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Re: QTMovie grabing while playback
Hi,
the image comes from:
- (CIImage*) view: (QTMovieView *)view willDisplayImage: (CIImage
*)image
{
...
// this is the conversion code
NSBitmapImageRep* bitmap = [[NSBitmapImageRep alloc] initWithCIImage:
image];
...
}
regards,
nikolai
Am 25.04.2008 um 16:43 schrieb douglas a. welton:
Nikolai,
Can you post a snippet of the code you are using for the conversion?
regards,
douglas
On Apr 25, 2008, at 9:04 AM, Nikolai Hellwig wrote:
Hey,
thank you very much. it helped a lot. but i still got one problem.
The image I derive from
NSBitmapImageRep initWithCIImage
is much smaller than the original pixel size of the video. Because
of that i can't use this method for production use. Is there
another way to do this?
regards,
nikolai
Nikolai,
QTMovieView has a delegate method
- (CIImage*) view: (QTMovieView *)Target_View willDisplayImage:
(CIImage *)New_Image
This method gives you a CIImage to play with before it is
displayed in the Target_View. Check the header file for
QTMovieView.h (near the bottom). I think the the MyMovieFilter
sample code uses this method.
Note: Depending on what type of analysis you are doing you may
need to convert the CIImage into a pixel-based format. If that is
too slow you may want to get friendly with
QTVisualContextIsNewImageAvailable() and the Display Link...
check out the CIVideoDemoGL sample code.
regards,
douglas
On Apr 23, 2008, at 12:19 PM, Nikolai Hellwig wrote:
Hi,
I've done some image analysing software for QTKit Capture. It
works fine. Now i need to use this for a quicktime movie.
I can playback the quicktime movie, but i can't find any delegate
which tells my application, that a new frame is rendered. If i
can get this information i could grab this frame in order to
analyse it.
can anyone tell me how to do it? I don't want the user to click
grabFrame or something like that.
regards
Nikolai Hellwig
Mit freundlichen Grüßen
Nikolai Hellwig
[EMAIL PROTECTED]
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Mit freundlichen Grüßen
Nikolai Hellwig
[EMAIL PROTECTED]
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Re: Weird Problem With CGImage
On Friday, April 25, 2008, at 08:58AM, Jean-Daniel Dupas [EMAIL PROTECTED] wrote: Using CGImageRef is not a realiable way to access pixel data of an image. You should create a CGBitmapContextCreate() instead and draw the part you want in this context. http://developer.apple.com/qa/qa2007/qa1509.html That document predates the publication of CGDataProviderCopyData in the API, though, which should provide a reliable way to access pixel data. In this particular case, it looks like drawing to a new bitmap context would be a more direct route, as you said. However, I'm using CGDataProviderCopyData myself, and I'd like to know where it can fail like this; it WFM so far. -- 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/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSBitmapImageRep bitmapData contains all zeroes?
I tweaked one of my format parameters somewhere in the processing chain, and it started working. I think I was accidentally initing my NSBitmapImageRep in 2 places. I can't explain why it was acting how it was, but it works now. On 26/04/2008, at 1:49 AM, Jean-Daniel Dupas wrote: What do you want to do with you captured images ? Just display them or record them ? Both. At the moment I'm probably doing things very inefficiently, but I looked at the OpenGL examples, and got very lost very quickly, so decided to stick with classes that I had some idea of how to use. I want to display the original image, process the bitmap data, then display some resulting images as well. If you just want to display it, you should use an NSOpenGLView and draw the CVBuffer or the CIImage directly. If this is for recording or processing the pixels (without CoreImage), you can try to generate a CVPixelBuffer (using the ARGB pixel format) instead of CVOpenGLTextureBuffer. You can do this using QTPixelBufferContextCreate() instead of QTOpenGLTextureContextCreate() to create your drawing context. A CVPixelBuffer allow you to access directly to the bitmapData (without using CIImage and NSBitmapImageRep). You can check the QTPixelBufferVCToCGImage sample code to see how to setup this kind of context. What would the best technique (in terms of execution speed) be to both display, AND process the frames? Is there any reason not to create both a CVPixelBuffer AND a CVBuffer? Thanks, 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 [EMAIL PROTECTED]
Re: Weird Problem With CGImage
On Apr 25, 2008, at 7:51 AM, Carter R. Harrison wrote: This bug in my code has been driving me nuts for days, but I have finally isolated the issue - only problem now is I don't understand what I'm doing wrong. I have a CGImage that I want to get the raw data bytes for. My code is below: CGImageRef sectionToCache = CGImageCreateWithImageInRect(backingStore, CGRectMake(x, y, cx, cy)); NSLog(@CGImage to cache has dimensions %d x %d and %d bytes per row, CGImageGetWidth(sectionToCache), CGImageGetHeight(sectionToCache), CGImageGetBytesPerRow(sectionToCache)); CFDataRef dataRef = CGDataProviderCopyData(CGImageGetDataProvider(sectionToCache)); NSLog(@Length of cachedImage data: %d, CFDataGetLength(dataRef)); When the code runs, the log spits out the following: CGImage to cache has dimensions 417 x 234 and 1668 bytes per row Length of cachedImage data: 6672 What is killing me here is that the CGImage has dimensions 417x234 and 1668 bytes per row. That to me means that the CFDataRef that I am obtaining should be 390,312 bytes (234 x 1668). But the CFDataRef is only 6,672 bytes which is nowhere close to what I think I should be getting. So I must be doing something wrong in trying to get the bitmap data, but I'm not sure what else to do and I even found some Apple docs with an example doing the exact same thing that I am doing. Can anybody provide some insight on this? Thanks everybody. This seems to be related to the CGImageCreateWithImageInRect() call, but I can't imagine why. CGDataProviderCopyData() seems to work perfectly with an original image in my limited testing, so please file a bug (and let me know what the bug number is). -- David Duncan Apple DTS Animation and Printing [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Initial value of on/off buttons
I realize that my buttons are generally not affected by the changes I make to the bool-values. Only the other way around. Can I not bind bools to the value of NSButtons? Or am I missing something else? Thanks for your help, Yann Yann Disser wrote: I have five textured NSButtons that are set to operate in On Off mode. All of them are value-bound to different bools in my application. Somehow the first button starts in the On-state and the others in the off state, no matter which button I bind to which bool. If I remove the bindings, the buttons start in the On-state. Setting the bools in awakeFromNib does not affect the state of the buttons. Clicking the buttons however causes my bools to have the correct values. What am I doing wrong? How can I at least set the initial state of my buttons? (They are all On in IB) I just noticed that removing the binding from the first button and adding that SAME binding again causes it to behave like the other buttons. I can restore the On-behavior by undoing that change. There has to be a bug involved, however the only thing I want is that all buttons start in the On-state without needing an outlet in my controller. I am thankful for suggestions, Yann ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
Nikolai,
Perhaps you might try creating an empty NSBitmapImageRep with the
size and pixel attributes you need. Then, use the resultant object as
a graphic context and draw your CIImage into that. The Reducer sample
code does something similar to this. I can imagine that this process
might be slow, but I don't know what your performance requirements are.
regards,
douglas
On Apr 25, 2008, at 11:58 AM, Nikolai Hellwig wrote:
Hi,
the image comes from:
- (CIImage*) view: (QTMovieView *)view willDisplayImage: (CIImage
*)image
{
...
// this is the conversion code
NSBitmapImageRep* bitmap = [[NSBitmapImageRep alloc]
initWithCIImage: image];
...
}
regards,
nikolai
Am 25.04.2008 um 16:43 schrieb douglas a. welton:
Nikolai,
Can you post a snippet of the code you are using for the conversion?
regards,
douglas
On Apr 25, 2008, at 9:04 AM, Nikolai Hellwig wrote:
Hey,
thank you very much. it helped a lot. but i still got one problem.
The image I derive from
NSBitmapImageRep initWithCIImage
is much smaller than the original pixel size of the video. Because
of that i can't use this method for production use. Is there
another way to do this?
regards,
nikolai
Nikolai,
QTMovieView has a delegate method
- (CIImage*) view: (QTMovieView *)Target_View willDisplayImage:
(CIImage *)New_Image
This method gives you a CIImage to play with before it is
displayed in the Target_View. Check the header file for
QTMovieView.h (near the bottom). I think the the MyMovieFilter
sample code uses this method.
Note: Depending on what type of analysis you are doing you may
need to convert the CIImage into a pixel-based format. If that
is too slow you may want to get friendly with
QTVisualContextIsNewImageAvailable() and the Display Link...
check out the CIVideoDemoGL sample code.
regards,
douglas
On Apr 23, 2008, at 12:19 PM, Nikolai Hellwig wrote:
Hi,
I've done some image analysing software for QTKit Capture. It
works fine. Now i need to use this for a quicktime movie.
I can playback the quicktime movie, but i can't find any
delegate which tells my application, that a new frame is
rendered. If i can get this information i could grab this frame
in order to analyse it.
can anyone tell me how to do it? I don't want the user to click
grabFrame or something like that.
regards
Nikolai Hellwig
Mit freundlichen Grüßen
Nikolai Hellwig
[EMAIL PROTECTED]
Sands Logo Text klein.png
Mit freundlichen Grüßen
Nikolai Hellwig
[EMAIL PROTECTED]
Sands Logo Text klein.png
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Re: Weird Problem With CGImage
On Apr 25, 2008, at 12:12 PM, David Duncan wrote: On Apr 25, 2008, at 7:51 AM, Carter R. Harrison wrote: This bug in my code has been driving me nuts for days, but I have finally isolated the issue - only problem now is I don't understand what I'm doing wrong. I have a CGImage that I want to get the raw data bytes for. My code is below: CGImageRef sectionToCache = CGImageCreateWithImageInRect(backingStore, CGRectMake(x, y, cx, cy)); NSLog(@CGImage to cache has dimensions %d x %d and %d bytes per row, CGImageGetWidth(sectionToCache), CGImageGetHeight(sectionToCache), CGImageGetBytesPerRow(sectionToCache)); CFDataRef dataRef = CGDataProviderCopyData(CGImageGetDataProvider(sectionToCache)); NSLog(@Length of cachedImage data: %d, CFDataGetLength(dataRef)); When the code runs, the log spits out the following: CGImage to cache has dimensions 417 x 234 and 1668 bytes per row Length of cachedImage data: 6672 What is killing me here is that the CGImage has dimensions 417x234 and 1668 bytes per row. That to me means that the CFDataRef that I am obtaining should be 390,312 bytes (234 x 1668). But the CFDataRef is only 6,672 bytes which is nowhere close to what I think I should be getting. So I must be doing something wrong in trying to get the bitmap data, but I'm not sure what else to do and I even found some Apple docs with an example doing the exact same thing that I am doing. Can anybody provide some insight on this? Thanks everybody. This seems to be related to the CGImageCreateWithImageInRect() call, but I can't imagine why. CGDataProviderCopyData() seems to work perfectly with an original image in my limited testing, so please file a bug (and let me know what the bug number is). Thanks David. The bug number is 5889934. For the time being I will use the workaround provided by an earlier poster. -- David Duncan Apple DTS Animation and Printing [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Initial value of on/off buttons
On Fri, Apr 25, 2008 at 5:13 PM, Yann Disser [EMAIL PROTECTED] wrote: I realize that my buttons are generally not affected by the changes I make to the bool-values. Only the other way around. Can I not bind bools to the value of NSButtons? Or am I missing something else? Are you binding via an NSObjectController? Hamish ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[ANN] Media App Developer position (Northern NJ)
Position: Media Application Developer - MacOS Expert Location: Northern, NJ Duration: Contract 2 3 months with possible extension To apply for this position please forward your resume in WORD format referring the position the position title above to: [EMAIL PROTECTED] Due to the volumes of resumes received by Comprehensive Search Inc. (a subsidiary of CMI Inc.), we kindly ask that only those meeting the candidate specifications apply. - EE The Company Our client, a pioneer in deployment of high definition (HD) video conferencing widely available over the internet, creating solutions that provide quality experiences to all environments from the home- office desktop to the dedicated corporate video-conferencing facility. Our client's family of end-to-end solutions for OEMs and organizations support multi-point connections that include a variety of different platforms ranging from Mac Windows desktops to dedicated room solutions. No dedicated networks are required. Position Summary Comprehensive Search Inc. is presently engaged in a search for an exceptional Senior Media Application Developer in Windows. This is a direct hire position with an immediate/ASAP start date. Position Summary Comprehensive Search Inc. is presently engaged in an urgent and immediate search for a MacOS Media Application Developer (SME). This is a contract position for 2 3 months with possible extension. Local candidates are preferred. Candidates out of the area will be expected to be onsite in No. NJ for multiple days each week. Start date is immediate!! Position Requirements Experience designing and developing Media Applications on MacOS a must Experience with cross-platform GUI development (MacOS, Win32, Unix) Experience with Cocoa GUI, Core Animation and OpenGL required C/C++ programming experience required Comprehensive Search adheres to strict policies on confidentiality and will never send your resume out without your permission. Feel free to pass this on to your colleagues. All referrals are greatly appreciated and kept in confidence. CONTACT: Eve Ellsworth Senior Technical Recruiter Comprehensive Search, Inc. (a CMI, Inc. Company) 732-223-7114 x108 Email: [EMAIL PROTECTED] Web: www.compsearchinc.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
mask nsimage
Hi, for hours I thought on this without coming to a working solution. I have an NSImage I need to draw (correctly scaled) in a pecifc drawRect. (got that of course) Now whenever I draw it I want to mask it so it appears beveled, rounded and (to make it harder) kinda '3d-isch' -- see an IPhoto event for what I want to doo aproximaty. Now what technqiue should I use.. I mean CG kinda looks like it does what I need but I wanted to know if there wasn't an easier way :) (the CG APIs look 'weird' and the docs dont provide sample or pseudo code for _this_) thanks, dominik ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
-init and awakeFromNib called twice.
I know I saw something somewhere in reference to these methods getting called twice on app launch, but can't find it with searching. Is this expected behavior for vanilla -init and (void) awakeFromNib methods? I'm doing some short loops in these methods and calling other instance methods. For now, no harm is done with all this stuff being done twice, but I'd rather not have to worry about that if I add code. I don't see most examples routinely checking for a second invocation in these init methods so I wonder what is going on. Other than that, all the advice I got here has worked and I now have 350 lines of code and only one line is glue. Very nice learning experience for Bindings and I thank all who helped. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Uniform Type Indicators
On 4/24/08 9:37 PM, Christopher Henrich said: Have Uniform Type Indicators (UTIs) been defined for VRML, X3d, of POVray files? First, it's Uniform Type Identifiers. :) Apple does not keep a list of 3rd party UTIs. No one else does either, that I know of. Does anyone know of one? The community really needs such a list. If no one knows of one, I'll create a page on the CocoaDev wiki so that the community has one. Conflicting UTIs are a big problem, you can read about the problem in the archives of Apple's quicklook mailing list. -- Sean McBride, B. Eng [EMAIL PROTECTED] 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 [EMAIL PROTECTED]
[Moderator] Re: starting...
I.S. is correct discussion of the SDK is not allowed on this list. Scott (Moderator) On Apr 25, 2008, at 11:21 AM, I. Savant wrote: I´m a new developer in iphone´s world, develop in actionScript (flash OOP) and build adGames and python too. The iPhone SDK is under non-disclosure agreement as you should know if you've downloaded it. It cannot be discussed publicly. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: [Moderator] Re: starting...
is there a list in apple somewhere which is restricted to people who are registered developers where this SDK can be discussed? On Apr 26, 2008, at 1:04 AM, Scott Anguish wrote: I.S. is correct discussion of the SDK is not allowed on this list. Scott (Moderator) On Apr 25, 2008, at 11:21 AM, I. Savant wrote: I´m a new developer in iphone´s world, develop in actionScript (flash OOP) and build adGames and python too. The iPhone SDK is under non-disclosure agreement as you should know if you've downloaded it. It cannot be discussed publicly. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/rols%40rols.org This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: [Moderator] Re: starting...
On Fri, Apr 25, 2008 at 1:17 PM, Roland King [EMAIL PROTECTED] wrote: is there a list in apple somewhere which is restricted to people who are registered developers where this SDK can be discussed? Nope. Apple still has not provided any forum in which NDA-covered material / technologies can be discussed amongst the in-crowd. That's been a problem for upcoming OS X releases as well as the new iPhone SDK. Talk to an ADC representative ... the more people that demand such a resource, the more likely they are to give in and provide it. Now back to your regularly-scheduled Cocoa-specific topics. ;-) -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Opportunity: Mac OS Media Application Developer, can be on-site in NJ or mostly remote: Contract is 3 months +
Please forgive my interruption of the technical discussion. Our direct client, a Video-over-IP development co. located in NJ, has entrusted me to locate a top-level Mac OS programmer with expertise in Cocoa and OpenGL, as well as cross-platform knowledge with Min32 API's. This is a 3 months contreact with possibility of extensions, with a Video-over-IP company specializing in HD video teleconferencing systems. Below are some details about the opportunity: We have an urgent and immediate need for a MacOs expert. We estimate the job to be 2-3 months initially with an extension possible. Can be on-site or mostly remote. Out-of-area candidates will be required to make periodic on-site visits. MacOS Media Application Developer * Experience designing and developing Media Applications on MacOS a must * Experience with cross-platform GUI development (MacOS, Win32, Unix) * Experience with Cocoa GUI, Core Animation and OpenGL required * C/C++ programming experience required Please let me know if you are interested in this opportunity Thanks! Oliver Oliver Eaton Recruiting Manager CMI [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[Moderator] Job postings
That there are so many new job openings for Cocoa developers is very exciting. However, please send drafts of job offers to the [EMAIL PROTECTED] first for approval. Thanks! Scott (moderator) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Weird Problem With CGImage
Could it be the CGImage references a compressed image format rather than a bitmap? On Apr 25, 2008, at 8:51 AM, Carter R. Harrison wrote: What is killing me here is that the CGImage has dimensions 417x234 and 1668 bytes per row. That to me means that the CFDataRef that I am obtaining should be 390,312 bytes (234 x 1668). But the CFDataRef is only 6,672 bytes which is nowhere close to what I think I should be getting. So I must be doing something wrong in trying to get the bitmap data, but I'm not sure what else to do and I even found some Apple docs with an example doing the exact same thing that I am doing. Can anybody provide some insight on this? Thanks everybody. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
Sorry to come in late, but this is something that occasionally comes up on quicktime-api and quicktime-java. To get text or images on top of a movie, sometimes it's easier to skip the programming approach and achieve the effect with authoring. Using the old QuickTime API, you could add a text track or a one-sample video track (higher in the Z- order, and with a suitable compositing mode), to achieve this effect without having to hack the rendering pipeline. Even easier still, just author a SMIL movie as an XML file and load that as your movie. Example on my blog: http://www.subfurther.com/blog/?p=84 Authoring won't always take you as far as you need to go, of course; in the case of a capture preview, you almost certainly have to do something clever with the QTCaptureView, or via Core Animation with the layers (Bill Dudney has an example of this in his new CA book from the Pragmatic Programmers). --Chris On Wed, 23 Apr 2008 16:08:38 -0400 douglas a. welton wrote: Bob Randall, If all you want to do is slap some arbitrary text over a movie, I would suggest that you take a look at using QTMovieLayer and CATextLayer as the mechanism for doing this. I don't have any code that I can share with you on this, but a previous client project used these two Core Animation objects with excellent results. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Screen Recording APIs ?
I am new to programming in Mac OSX. I need to do a very simple screen recording application similar to uShow, ScreenFlow and others, but with very basic settings and simple features. I would like some directions on where can I get some references on API areas, sample code, or some other information that might help me on this task. I suspect that it is something related to the QuickTime API, but I would really appreciate some help here. I have done this in Windows, but in Mac i am totally lost. Anybody has any sample code or could tell which API I should start taking a look at -- Marcio Castilho ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Weird Problem With CGImage
Le 25 avr. 08 à 18:12, David Duncan a écrit : On Apr 25, 2008, at 7:51 AM, Carter R. Harrison wrote: This bug in my code has been driving me nuts for days, but I have finally isolated the issue - only problem now is I don't understand what I'm doing wrong. I have a CGImage that I want to get the raw data bytes for. My code is below: CGImageRef sectionToCache = CGImageCreateWithImageInRect(backingStore, CGRectMake(x, y, cx, cy)); NSLog(@CGImage to cache has dimensions %d x %d and %d bytes per row, CGImageGetWidth(sectionToCache), CGImageGetHeight(sectionToCache), CGImageGetBytesPerRow(sectionToCache)); CFDataRef dataRef = CGDataProviderCopyData(CGImageGetDataProvider(sectionToCache)); NSLog(@Length of cachedImage data: %d, CFDataGetLength(dataRef)); When the code runs, the log spits out the following: CGImage to cache has dimensions 417 x 234 and 1668 bytes per row Length of cachedImage data: 6672 What is killing me here is that the CGImage has dimensions 417x234 and 1668 bytes per row. That to me means that the CFDataRef that I am obtaining should be 390,312 bytes (234 x 1668). But the CFDataRef is only 6,672 bytes which is nowhere close to what I think I should be getting. So I must be doing something wrong in trying to get the bitmap data, but I'm not sure what else to do and I even found some Apple docs with an example doing the exact same thing that I am doing. Can anybody provide some insight on this? Thanks everybody. This seems to be related to the CGImageCreateWithImageInRect() call, but I can't imagine why. CGDataProviderCopyData() seems to work perfectly with an original image in my limited testing, so please file a bug (and let me know what the bug number is). I didn't find any documentation about CGDataProviderCopyData() except this comment in the header: /* Return a copy of the data specified by provider. Returns NULL if a * complete copy of the data can't be obtained (for example, if the * underlying data is too large to fit in memory). */ What is the expected output format of the data it returns ? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Screen Recording APIs ?
Check out: CGRegisterScreenRefreshCallback(), and CGWindowListCreateImage() Documentation is a bit limited at this point, but they're pretty easy to figure out. j o a r On Apr 25, 2008, at 11:35 AM, Marcio Castilho wrote: I am new to programming in Mac OSX. I need to do a very simple screen recording application similar to uShow, ScreenFlow and others, but with very basic settings and simple features. I would like some directions on where can I get some references on API areas, sample code, or some other information that might help me on this task. I suspect that it is something related to the QuickTime API, but I would really appreciate some help here. I have done this in Windows, but in Mac i am totally lost. Anybody has any sample code or could tell which API I should start taking a look at ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Screen Recording APIs ?
Le 25 avr. 08 à 20:35, Marcio Castilho a écrit : I am new to programming in Mac OSX. I need to do a very simple screen recording application similar to uShow, ScreenFlow and others, but with very basic settings and simple features. I would like some directions on where can I get some references on API areas, sample code, or some other information that might help me on this task. I suspect that it is something related to the QuickTime API, but I would really appreciate some help here. I have done this in Windows, but in Mac i am totally lost. Anybody has any sample code or could tell which API I should start taking a look at -- Marcio Castilho There is a sample code code on the ADC site that do that: http://developer.apple.com/samplecode/OpenGLScreenCapture/index.html Description Demonstrates how to capture the screen on Mac OS X using OpenGL. The sample shows how to grab frames using asynchronous texture fetching, a technique which is more complicated but offers better performance than synchronous capture using glReadPixels. When performing asynchronous texture fetching, the resulting capture is saved to a movie file. Compression of the actual frames for the destination movie file is performed simultaneously with the capture but on a separate thread for better performance. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How do I use a WebView in a modal dialog?
On Apr 25, 2008, at 08:35:53, David Springer wrote: Folks, How can I use a WebView in a modal dialog? I understand that WebViews don't work in the modal runloop mode, so is there a way to fake this? Run my own nextEventMatchingMask: loop (I have tried this with very limited success)? Run the window containing the WebView in a separate thread with its own run loop? Get rid of WebView altogether and go straight to WebFrame (this sounds hard)? Tickle the runloop. See my blog post about this: http://www.dejal.com/blog/2007/01/cocoa-topics-case-modal-webview -- David Sinclair, Dejal Systems, LLC - [EMAIL PROTECTED] Dejal blog - http://www.dejal.com/blog/ Cocoa code - http://www.dejal.com/developer/ Now on Twitter - http://twitter.com/dejal/ smime.p7s Description: S/MIME cryptographic signature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: how to manage multiple non-document windows
On Apr 24, 2008, at 5:01 PM, Ken Thomases wrote: On Apr 24, 2008, at 6:39 PM, Steve Christensen wrote: I'm rewriting an old legacy app in Cocoa and have run into a stumbling block. The app is supposed to support having multiple windows open, but the window content is unrelated to the concept of a document - which is the normal multiple window model. Instead the windows provide a UI to perform specific calculations, among other things. An example of what I'm looking for would be if you had a version of the Calculator application where you could create multiple calculator windows so you could leave several calculations open simultaneously, if that makes sense. When I start up the app, an instance of the window is created, but I can't figure out how to get it to repeat the process in response to selecting New from the File menu. I've found a bunch of info on multiple document windows, or a single non-doc window plus a preferences window, but nothing on instantiating multiple non- document windows. Did I just miss something basic, or is all of the magic really focused on NSDocumentController, etc.? If you're going to instantiating a window from a nib multiple times, it should generally be in the nib by itself. Well, the nib can have other objects which accompany the window, like NSController subclasses. Then, you load the nib once for each window that you need to instantiate. It's quite helpful to use NSWindowController (or custom subclass) objects to manage each nib, its loading, and the resulting window. Typically, the NSWindowController is not contained in the nib. Rather it is instantiated to manage the loading of the nib from the outside. It is often the File's Owner of the nib. I put both the window and NSWindowController subclass in MainMenu.nib since some of the menu items control behavior in the window (and some of the window's current state is reflected in the menus. So I wouldn't think that you'd want to reload the nib for that case, right? I've tried using -[NSWindowController initWithWindowNibName:owner:] to create a new controller instance (in response to FileNew), figuring that it'd drag the associated window along, but the controller's _window ivar is nil, so obviously that's not working. Is it just going to be easier for me to go the NSDocument, etc., route and say that I have a document that I'm going to load (wink, wink) in order to better fit within what appears to be the expected multiple window model? I also just noticed that when I close one of these windows (configured with release on close), the controller still hangs around, but that's another issue... ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: [solved] How to catch all mouse clicking (or avoid multiple click filtering in startTrackingAt)
Ken, you're Genius !! Overriding the mouseDown method of a subclassed control containing the cell and passing to its 'super' an identical NSEvent with clickCount always 1 did it ! Thank you for your help, I really appreciate it Joan El 25/04/2008, a las 09:02, Ken Thomases escribió: On Apr 25, 2008, at 1:29 AM, Joan Lluch (casa) wrote: I have implemented a NSButtonCell subclass in the usual way to catch mouse tracking. I get the startTrackingAt and stopTracking messages called correctly on the first click of the mouse. However the startTrackingAt is not quickly called again if I quickly click again the mouse, such as if I did a double click. I mean, if I perform a double or triple click I only get one pair of startTrackingAt and stopTracking calls instead of the desired two or three pairs. So the desired behaviour is to be able to catch all the mouse clicking activity in almost real time. What I get instead is some filtering of the actual mouse clicking. This is the way I implemented the methods I'm guessing that this filtering is being done in -[NSControl mouseDown:]. That is, if [theEvent clickCount] is greater than one, it doesn't invoke the cell's trackMouse:inRect:ofView:untilMouseUp: method. You can try subclassing the NSControl in question (presumably an NSButton?), overriding mouseDown:, and passing a different object to [super mouseDown:aDifferentEvent]. You can either create a new NSEvent whose properties are all the same as theEvent, or you can wrap theEvent in a proxy object which forwards all messages faithfully except clickCount, which it intercepts to always return 1. Good luck, Ken ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How do I use a WebView in a modal dialog?
Le 25 avr. 08 à 21:00, David Sinclair a écrit : On Apr 25, 2008, at 08:35:53, David Springer wrote: Folks, How can I use a WebView in a modal dialog? I understand that WebViews don't work in the modal runloop mode, so is there a way to fake this? Run my own nextEventMatchingMask: loop (I have tried this with very limited success)? Run the window containing the WebView in a separate thread with its own run loop? Get rid of WebView altogether and go straight to WebFrame (this sounds hard)? Tickle the runloop. See my blog post about this: http://www.dejal.com/blog/2007/01/cocoa-topics-case-modal-webview -- Not good. There is not blocking call in your loop, so the loop will keep running consuming all the processor. Instead of your call, you can use [[NSRunLoop currentLoop] runMode:NSDefaultRunLoopMode beforeDate: [NSDate distantFuture]]; The event loop is a runloop data source, so any ui event will wake up the source and make this method returns, and so you can block the run loop and tell him to wait that something append. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Weird Problem With CGImage
On Apr 25, 2008, at 11:45 AM, Jean-Daniel Dupas wrote: I didn't find any documentation about CGDataProviderCopyData() except this comment in the header: /* Return a copy of the data specified by provider. Returns NULL if a * complete copy of the data can't be obtained (for example, if the * underlying data is too large to fit in memory). */ What is the expected output format of the data it returns ? The output image data is the same format as the associated CGImageRef. You can use the CGImageGet*() functions to determine the exact format of the data returned. -- David Duncan Apple DTS Animation and Printing [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: how to manage multiple non-document windows
Le 25 avr. 08 à 21:06, Steve Christensen a écrit : On Apr 24, 2008, at 5:01 PM, Ken Thomases wrote: On Apr 24, 2008, at 6:39 PM, Steve Christensen wrote: I'm rewriting an old legacy app in Cocoa and have run into a stumbling block. The app is supposed to support having multiple windows open, but the window content is unrelated to the concept of a document - which is the normal multiple window model. Instead the windows provide a UI to perform specific calculations, among other things. An example of what I'm looking for would be if you had a version of the Calculator application where you could create multiple calculator windows so you could leave several calculations open simultaneously, if that makes sense. When I start up the app, an instance of the window is created, but I can't figure out how to get it to repeat the process in response to selecting New from the File menu. I've found a bunch of info on multiple document windows, or a single non-doc window plus a preferences window, but nothing on instantiating multiple non- document windows. Did I just miss something basic, or is all of the magic really focused on NSDocumentController, etc.? If you're going to instantiating a window from a nib multiple times, it should generally be in the nib by itself. Well, the nib can have other objects which accompany the window, like NSController subclasses. Then, you load the nib once for each window that you need to instantiate. It's quite helpful to use NSWindowController (or custom subclass) objects to manage each nib, its loading, and the resulting window. Typically, the NSWindowController is not contained in the nib. Rather it is instantiated to manage the loading of the nib from the outside. It is often the File's Owner of the nib. I put both the window and NSWindowController subclass in MainMenu.nib since some of the menu items control behavior in the window (and some of the window's current state is reflected in the menus. So I wouldn't think that you'd want to reload the nib for that case, right? I've tried using -[NSWindowController initWithWindowNibName:owner:] to create a new controller instance (in response to FileNew), figuring that it'd drag the associated window along, but the controller's _window ivar is nil, so obviously that's not working. Is it just going to be easier for me to go the NSDocument, etc., route and say that I have a document that I'm going to load (wink, wink) in order to better fit within what appears to be the expected multiple window model? I also just noticed that when I close one of these windows (configured with release on close), the controller still hangs around, but that's another issue... It will probably be easier for you to understand how nib works. Going the NSDocument way whithout nowledge of what append will not help you. You don't have to add an instance of your window controller to the nib. First create a new nib file. Select the nib owner and set it's class to your window controller class. Then bind the owner window outlet to the Window object. and bind your control to the owner. And finaly, create a controller instance using -[NSWindowController initWithWindowNibName:]; (it sets the owner to self by default) Now, for your menu items in MainMenu, bind them to the FirstResponder object. So the action will always be send to the Window controller instance that own the front window. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Framework for IB Plugin and app
I've got a framework project, currently set up to create an embedded framework for an application, with a view class that I'd like to turn into an IB Plugin. Can the framework be embedded in the IB Plugin? If so, how? Embedding it like in an app doesn't seem to work: IB doesn't seem to see the framework or its classes when I'm setting the representedObject and draggedView. If not, do I use the source of my views to create the IB Plugin, and then just embed my regular framework, or is there a way to embed the IBPlugin's framework? Thanks, Dan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
NSAlert
I'm new to cocoa, I'm trying to display an alertbox. This is the code:
NSAlert *alert = [[[NSAlert alloc] init] autorelease];
[alert addButtonWithTitle:@OK];
[alert addButtonWithTitle:@Cancel];
[alert setMessageText:@Delete the record?];
[alert setInformativeText:@Deleted records cannot be restored.];
[alert setAlertStyle:NSWarningAlertStyle];
[alert beginSheetModalForWindow: (NSWindow *)window
modalDelegate:self
didEndSelector:@selector(alertDidEnd:returnCode:contextInfo:)
contextInfo:nil];
- (void)alertDidEnd:(NSAlert *)alert returnCode:(int)returnCode
contextInfo:(void *)contextInfo {
NSLog(@Test)
}
I cannot find out how to refer to the window of my single window
program in the method: beginSheetModalForWindow
Some help would be appreciated!
___
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Re: NSAlert
I cannot find out how to refer to the window of my single window program in the method: beginSheetModalForWindow Some help would be appreciated! Where (in what object) is this code located? That'd probably be a good place to add an IBOutlet to your window (and connect it in Interface Builder). You'll want to *thoroughly* read this: http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaFundamentals/Introduction/chapter_1_section_1.html Pay particular attention to the Communicating With Objects section, and the Outlets subsection. -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Caching a local file using NSURLCache
I was 100% sure the doc stated that NSURLCache handled file://, and since it worked under 10.4, I didnt look further. But I just found only http and https are cached. I didnt want a cache for local file: in my app, I display files which are located locally and remotely. In addition, the local files are reduced for display, so using an unified cache for remote and local did simplify a lot my code. Unfortunately, I have to rewrite it. The doc says that file:// caching can be done Custom NSURLProtocol classes can provide caching if they choose. If anyone has some sample NSURLProtocol code to share, I didnt found any example that I can use. Thanks, Stephan Le 24 avr. 08 à 20:42, Jens Alfke a écrit : On 23 Apr '08, at 3:14 PM, Stephan Burlot wrote: I want to cache local files (images) so I cache a NSData using [NSURLCache storeCachedResponse] If I try to fetch it, the cachedResponseForRequest:request is always nil under 10.5 This works under 10.4. NSURLCache was rewritten in 10.5; the new implementation probably ignores file: URLs, because it doesn't make sense to use the filesystem to cache data from the filesystem. Are you sure you need to be using a cache to store local files? Why can't you just reload the image from its original source file if you need to? If you really need to do this, you'll need to make your own implementation, I think. —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 [EMAIL PROTECTED]
Re: Framework for IB Plugin and app
On Apr 25, 2008, at 2:53 PM, Daniel DeCovnick wrote: I've got a framework project, currently set up to create an embedded framework for an application, with a view class that I'd like to turn into an IB Plugin. Can the framework be embedded in the IB Plugin? If so, how? Embedding it like in an app doesn't seem to work: IB doesn't seem to see the framework or its classes when I'm setting the representedObject and draggedView. If not, do I use the source of my views to create the IB Plugin, and then just embed my regular framework, or is there a way to embed the IBPlugin's framework? IB Plugin's are actually embedded in your framework. See the following for an example: http://www.instantinteractive.com/private/samplecode/MyIBPlugin.zip ___ Ricky A. Sharp mailto:[EMAIL PROTECTED] Instant Interactive(tm) http://www.instantinteractive.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: starting...
I´m studying objective-C around one month and have some doubts. Have you studied the Objective-C 2.0 document? It should answer your questions about Properties and the @synthesize directive as these are new additions to the language. Although handy in the long run, they do make things more difficult for the newbie, as do other abstract additions such as bindings... http://developer.apple.com/documentation/Cocoa/Conceptual/ObjectiveC/Introduction/chapter_1_section_1.html Regards, Bertil___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
On 25.04.2008, at 11:17, Bob Smith wrote: Well, I'm glad I had an excuse to play around with Quartz Composer; I knew about it but had never spent any time with it, very cool! Unfortunately, it doesn't solve my immediate problem. As far as I can tell, compositions won't play streaming video at all. They work great with movies from files, and with local live sources (iSight, DV). But giving the Image With Movie patch an .sdp file just results in a static QuickTime logo, it never shows any actual video. IIRC QCPerformer is the sample that shows how to - use a CVDisplayLink for VBL-synched movie decoding - feed the result via OPenGL into Quartz Composer, that might be what you want to throw into the QCTV source mixer... Regards, Tom_E ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[solved]? Re: Framework for IB Plugin and app
But you can't then embed the framework in the app, AFAICT. IB gives a plugin corrupted error message when you change the settings in the target to those for an embedded framework and click Build Run. Huh, turns out it doesn't anymore. Cool. :-) -Dan On Apr 25, 2008, at 5:28 PM, Ricky Sharp wrote: On Apr 25, 2008, at 2:53 PM, Daniel DeCovnick wrote: I've got a framework project, currently set up to create an embedded framework for an application, with a view class that I'd like to turn into an IB Plugin. Can the framework be embedded in the IB Plugin? If so, how? Embedding it like in an app doesn't seem to work: IB doesn't seem to see the framework or its classes when I'm setting the representedObject and draggedView. If not, do I use the source of my views to create the IB Plugin, and then just embed my regular framework, or is there a way to embed the IBPlugin's framework? IB Plugin's are actually embedded in your framework. See the following for an example: http://www.instantinteractive.com/private/samplecode/MyIBPlugin.zip ___ Ricky A. Sharp mailto:[EMAIL PROTECTED] Instant Interactive(tm) http://www.instantinteractive.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: iphone document syncing
Once again, the iPhone SDK is under a non-disclosure agreement, which you should know if you've downloaded it. It cannot be discussed publicly. -- I.S. On Apr 25, 2008, at 5:24 PM, Mark Manes wrote: Greetings, I do not know if others have come up with a reasonable solution for this that doesn't require software to be installed on the host computer -- but my iphone application will create a file that I want to get back to the main PC or Mac. I can see no way to do this in the SDK. Anyone have ideas on how to do this that is reasonable? -mark= ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/idiotsavant2005%40gmail.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: [solved]? Re: Framework for IB Plugin and app
That was supposed to be struck-through. Oops. -Dan On Apr 25, 2008, at 6:09 PM, Daniel DeCovnick wrote: But you can't then embed the framework in the app, AFAICT. IB gives a plugin corrupted error message when you change the settings in the target to those for an embedded framework and click Build Run. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Initial value of on/off buttons
No, should I? Yann On 25. Apr 2008, at 18:32, Hamish Allan wrote: On Fri, Apr 25, 2008 at 5:13 PM, Yann Disser [EMAIL PROTECTED] wrote: I realize that my buttons are generally not affected by the changes I make to the bool-values. Only the other way around. Can I not bind bools to the value of NSButtons? Or am I missing something else? Are you binding via an NSObjectController? Hamish ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
[not solved] Re: Framework for IB Plugin and app
Never mind on that, it still doesn't work. I don't know why it worked one time, but it doesn't now. Suggestions? -Dan On Apr 25, 2008, at 6:43 PM, Daniel DeCovnick wrote: That was supposed to be struck-through. Oops. -Dan On Apr 25, 2008, at 6:09 PM, Daniel DeCovnick wrote: But you can't then embed the framework in the app, AFAICT. IB gives a plugin corrupted error message when you change the settings in the target to those for an embedded framework and click Build Run. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: how to manage multiple non-document windows
On Apr 25, 2008, at 12:45 PM, Erik Verbruggen wrote: On 25 Apr 2008, at 20:06, Steve Christensen wrote: I put both the window and NSWindowController subclass in MainMenu.nib since some of the menu items control behavior in the window (and some of the window's current state is reflected in the menus. So I wouldn't think that you'd want to reload the nib for that case, right? Yes, you will want to reload the nib to get a new window. However, no, you don't want that for the menu bar. So you should move the window to a different nib file. Unfortunately, that will give you the excitement of having to update the menu status according to the selected window: And if I move the window and window controller out of the main nib, I'm no longer given an option for targets associated with my window controller (the first responder doesn't list my controller IBActions) when trying to wire up all the menu items. This was likely why I just put them into the main nib in the first place. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Library-Object in NSPersistentDocument but not in XML-file
Hi Mike, Are you assigning the entities to different configurations? Wil On Apr 23, 2008, at 4:28 PM, Mike Donovan wrote: Hello everybody! In my document-based core data application I have a outline view which displays a list of departments like this (similar to iTunes): COMPANY [Item] -- All Employees [SmartItem : Item] -- Department A [Department : Item] -- Department B [Department : Item] That works very well! Items have many children and one parent and the NSTreeController handles it without any problems. However: I don't want any Items (COMPANY) or SmartItems (All Employees) to be saved in the document because they are only temporary objects so to say. This is done in CoreRecipes using two different stores: NSXMLStoreType and NSInMemoryStoreType. When I tried to add this to my app, the saved document is empty. It looks like all objects are assigned to the in-memory store. In fact, the in-memory store is the only one in the context until the document gets saved. Can you help me? 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/wilshmil%40mac.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Saving NSTextView data to CoreData without ending editing
Here's what I'm doing:
- (void)endEditingSavingCurrentResponder
{
NSResponder *currentResponder = [self firstResponder];
if ([currentResponder isKindOfClass:[NSTextView class]])
{
if( [(NSTextView *) currentResponder isFieldEditor] )
currentResponder = [(NSTextView *)currentResponder
delegate];
}
if (![self makeFirstResponder:self])
[self endEditingFor:nil];
[self makeFirstResponder:currentResponder];
}
On Apr 25, 2008, at 5:03 PM, William Turner wrote:
When you say you are ending editing what do you mean? Are you
using commitEditing?
Wil
On Apr 22, 2008, at 12:26 PM, Mike Manzano wrote:
I have an application that periodically needs to save content
contained in an NSTextView. The text view is bound to a Core Data
managed object. Currently, I am ending editing on the text view to
force it to save its contents into the store. However, since I'm
doing it automatically on a time interval, the view goes out of
focus which is annoying if you're typing into it. Is there a way to
save the text view's contents without ending editing on it?
Thanks,
Mike
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Need a native guide through Cannot remove an observer woods
I'm getting this message. I think I know what all the words mean, and
I've crawled the KVC and KVO manuals again just to be certain, but I'm
not getting any inspirations on what I'm supposed to do about this
situation. Having seen this message, if I let the program continue
very much longer (_not_ very much longer, actually), I'm likely to get
a BAD_ACCESS crash, which I suppose must be related.
2008-04-25 17:13:11.191 SCPluginUIDaemon[20884:10b]
Exception raised during posting of notification. Ignored.
exception: 'Cannot remove an observer NSKeyValueObservance 0x3807e0
for the key path kind from SVNWCEntry 0x34bfa0
because it is not registered as an observer.'
invoked observer method: '*** -[SVNInfoUI windowWillClose:]'
observer: 0x34c380
notification name: 'NSWindowWillCloseNotification'
I guess part of my confusion is the paradox between cannot remove an
observer and it is not registered as an observer. If it's not
registered, who's trying to remove it? And why? And what have I done
to confuse the poor bloke?
The SVNInfoUI is File's Owner to the NIB, and delegate, and this
happens when I close the window (all that sounds right). -[SVNInfoUI
windowWillClose:] does, indeed, do [self setEntry:nil], where entry is
an SVNWCEntry, and -setEntry: looks like this:
- (void) setEntry:(SVNWCEntry *)value
{
[self willChangeValueForKey:@entry];
[value retain];
[entry release];
entry = value;
[self didChangeValueForKey:@entry];
}
I can see how this could lead to some vigorous unregistering of
observers.
will/didChanging @entry.kind in setEntry makes no discernible
difference.
kind is a property of SVNWCEntry, and the purpose of the SVNInfoUI
is to display all those SVNWCEntry properties, including kind, so I
dare say someone's observing the thing, but I can't trace down who, or
where the connection's made, or how to unmake it. Kind is not a
member variable, it's an entry in a dictionary held by SVNWCEntry, so -
[SVNWCEntry kind] is actually
- (NSString *) kind {
return [data valueForKey:@kind];
}
which I believe is still KVC-compliant and KVOable, though I'm
mystified as to why it was originally coded that way.
And yes, I've been changing all that code furiously, in particular
because all these objects were formerly leaked and I'm trying to get
them released and cleaned up, and so even though this stuff has been
in our product for a long time, this is probably the first time on any
stage that an SVNInfoUI and its associated SVNWCEntry have ever
actually been dealloc'ed, so nearly any surprising thing might be true
of them.
-==-
Jack Repenning
[EMAIL PROTECTED]
Project Owner
SCPlugin
http://scplugin.tigris.org
Subversion for the rest of OS X
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Re: how to manage multiple non-document windows
Le 26 avr. 08 à 01:44, Steve Christensen a écrit : On Apr 25, 2008, at 12:45 PM, Erik Verbruggen wrote: On 25 Apr 2008, at 20:06, Steve Christensen wrote: I put both the window and NSWindowController subclass in MainMenu.nib since some of the menu items control behavior in the window (and some of the window's current state is reflected in the menus. So I wouldn't think that you'd want to reload the nib for that case, right? Yes, you will want to reload the nib to get a new window. However, no, you don't want that for the menu bar. So you should move the window to a different nib file. Unfortunately, that will give you the excitement of having to update the menu status according to the selected window: And if I move the window and window controller out of the main nib, I'm no longer given an option for targets associated with my window controller (the first responder doesn't list my controller IBActions) when trying to wire up all the menu items. This was likely why I just put them into the main nib in the first place. You can add methods and Outlet manualy to a class in IB. In the Identity tab of the inspector, there is the class name, and the list of methods and outlets, both with a +button. Add your methods to the first responder and then you will ba able to bind them. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Unexplained hangs
Hello All, I have a very strange error with a project I've been working on. I've been trying different designs to try to work out a particular problem, and over that time I've been making different subclasses of a particular object. Suddnely, for no reason that I can see, *any* subclass of this object fails to init. The debugger hangs on objc_msgSend, and clicking continue gives EXC_BAD_ACCESS. Now, I know there could be a million reasons why an object wouldn't init, but if I use the super class, the program runs fine. To make the point even more obvious, even subclass with NO overrides of any kind won't init, but using the superclass directly works just fine. The code compiles, but hangs when I run it. I've been having weird problems all day, and I'm just wondering if anybody knows of any particularly strange bugs in xCode 3.0, and whether there are any cures. This seriously makes no sense (and I've been having other problems today which similarly made little sense). Any thoughts **greatly** appreciated. thanks, J. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
On Apr 25, 2008, at 7:41 AM, douglas a. welton wrote: Bob, re: Quartz Composer Did you check the Asynchronous Mode checkbox on the Movie Loader patch's Settings panel? This box is specifically available to allow for playback of streaming material. Eh? I don't see a patch called Movie Loader at all. I see a Generator patch called Image With Movie, and the only setting is Highest Quality. I'm doing all development under Tiger because I have to deploy on older systems, could you be describing something which is new to Leopard? I should repeat my tests under 10.5, it is possible one of these approaches will just work. That isn't necessarily a solution since I would have to persuade the client to upgrade a pile of old G5 systems, but I should find out if this problem is only on Tiger. re: QT flaw The supposition that QuickTime is fundamentally flawed is not accurate. If you had time to explore, I would point you in the direction of the QT Broadcaster interface and the sample code available for receiving (and parsing) RTSP/RTP streams. If you don't have time, don't go down this path - the API is cryptic (at best) and very poorly documented. Today I agree with you, my jumped-to conclusion isn't justified. Sorry, I was feeling a bit frustrated last night. There is surely some way to get this to work by using the QuickTime C APIs directly, but some subtlety involved in streaming just isn't being handled by the Cocoa APIs, at least not on 10.4. However, other than doing some tests on 10.5, I have to set this aside due to time constraints. I've got something deliverable now, hopefully I'll have a chance to figure out how to do it right later. Thanks! Bob ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: starting...
I also began learning Objective-C programming about a month ago, without any prior C experience. I've found Stephen Kochan's Programming in Objective-C to be very useful. He claims readers will be able to follow along without prior knowledge of C. That's been true for me so far (I'm about 3/4 of the way through it). I'd recommend that book first, then Apple's Objective-C 2.0 document to update what you've learned in Kochan's book, then Aaron Hillegass' book, the third edition of which is due to be available in about a month. On Apr 25, 2008, at 2:35 PM, Bertil Holmberg wrote: I´m studying objective-C around one month and have some doubts. Have you studied the Objective-C 2.0 document? It should answer your questions about Properties and the @synthesize directive as these are new additions to the language. Although handy in the long run, they do make things more difficult for the newbie, as do other abstract additions such as bindings... http://developer.apple.com/documentation/Cocoa/Conceptual/ObjectiveC/Introduction/chapter_1_section_1.html Regards, Bertil___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/bradgibbs%40mac.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
edit file
How exactly would I go about replacing the DefaultDesktop.jpg image in core services with a objective c cocoa app. I'm just starting with cocoa, so any help is greatly appreciated. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Unexplained hangs
on 4/25/08 7:15 PM, [EMAIL PROTECTED] purportedly said: I have a very strange error with a project I've been working on. I've been trying different designs to try to work out a particular problem, and over that time I've been making different subclasses of a particular object. Suddnely, for no reason that I can see, *any* subclass of this object fails to init. The debugger hangs on objc_msgSend, and clicking continue gives EXC_BAD_ACCESS. In GDB are you able to see the line in your code that leads to this error? If so, post it. Also post your init. Also, NSZombieEnabled is your friend. See http://www.cocoadev.com/index.pl?NSZombieEnabled. Best, Keary Suska Esoteritech, Inc. Demystifying technology for your home or business ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Screen Recording APIs ?
On 26/04/2008, at 4:50 AM, j o a r wrote: Check out: CGRegisterScreenRefreshCallback(), and CGWindowListCreateImage() Documentation is a bit limited at this point, but they're pretty easy to figure out. There's some good sample code for this: http://developer.apple.com/samplecode/SonOfGrab/ -- Rob Keniger ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Need a native guide through Cannot remove an observer woods
on 4/25/08 6:49 PM, [EMAIL PROTECTED] purportedly said:
- (void) setEntry:(SVNWCEntry *)value
{
[self willChangeValueForKey:@entry];
[value retain];
[entry release];
entry = value;
[self didChangeValueForKey:@entry];
}
If you haven't turned off automatic KVO notifications, the above is very
wrong, and could be the source of your problem.
Best,
Keary Suska
Esoteritech, Inc.
Demystifying technology for your home or business
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Re: Initial value of on/off buttons
On Apr 25, 2008, at 7:37 PM, Yann Disser wrote: Are you binding via an NSObjectController? No, should I? Yes (or one of its subclasses). You have to make sure everyone is on the same page as mindless corporate and government automatons are wont to say. In Cocoa, this is done easiest (usually) with Bindings: http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaBindings/Concepts/HowDoBindingsWork.html#/ /apple_ref/doc/uid/20002373 Since Cocoa follows the Model-View-Controller design pattern: http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaFundamentals/CocoaDesignPatterns/chapter_5_section_4.html ... and the Bindings mechanism relies on the Key Value Coding and Key Value Observing mechanisms: http://developer.apple.com/documentation/Cocoa/Conceptual/KeyValueCoding/KeyValueCoding.html http://developer.apple.com/documentation/Cocoa/Conceptual/KeyValueObserving/KeyValueObserving.html ... this means that yes, your boolean values can be bound to things (or things can be bound to your boolean value) but both sides of the relationship must play by the rules to get things observed and/or respond to the things you're observing. Considering the above (if you believe such edicts), that should be done by the controller layer, which is in the best position to mediate between your model (state, persistent or not) and your view of that model. Your controller just has to send the right signals to get changes noticed. Without this, you'd have to do something ridiculous. Something like making a checkbox know how to track whether that picture of your grandma doing shots of Jägermeister and showing her tongue piercing at the local strip club is included in an album you happen to be publishing on photobucket.com and sharing with the good folks at First Baptist Church. Where was I? Oh. We don't need a checkbox that specific. Just a checkbox that reflects a boolean state. We also don't need to photo to know anything about albums and photobucket.com and grandma's questionable habits. That particular state in that particular grandma-busting application is shared with a property of some 'picture' object ... a boolean property called 'includedInAlbum'. The controller is responsible for matching the checkbox to the 'included' state of a picture to an album. That controller executes the 'application-specific' logic that makes that particular checkbox affect the 'includedInAlbum' state of that particular picture (depending on your selection and latent anger toward your grandmother). Make it do your will and thank you for the privilege - but respect its existing talents - and leave the rest to do what they were designed to do. So ... bind your button (view) to your model (whatever that boolean represents) via their common mediator - a controller. Depending on your needs, a generic NSObjectController, an NSDictionaryController, or the more container-like NSArrayController will handle most general cases with ease. NSTreeController ... well NSTreeController is ... available. Now a standard disclaimer: I apologize if any of that is unclear, incomplete, or just wine-drunken rambling. It's Friday. -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: how to manage multiple non-document windows
On Apr 25, 2008, at 5:51 PM, Jean-Daniel Dupas wrote: Le 26 avr. 08 à 01:44, Steve Christensen a écrit : On Apr 25, 2008, at 12:45 PM, Erik Verbruggen wrote: On 25 Apr 2008, at 20:06, Steve Christensen wrote: I put both the window and NSWindowController subclass in MainMenu.nib since some of the menu items control behavior in the window (and some of the window's current state is reflected in the menus. So I wouldn't think that you'd want to reload the nib for that case, right? Yes, you will want to reload the nib to get a new window. However, no, you don't want that for the menu bar. So you should move the window to a different nib file. Unfortunately, that will give you the excitement of having to update the menu status according to the selected window: And if I move the window and window controller out of the main nib, I'm no longer given an option for targets associated with my window controller (the first responder doesn't list my controller IBActions) when trying to wire up all the menu items. This was likely why I just put them into the main nib in the first place. You can add methods and Outlet manualy to a class in IB. In the Identity tab of the inspector, there is the class name, and the list of methods and outlets, both with a +button. Add your methods to the first responder and then you will ba able to bind them. That did it! Thank you so much for the pointer. 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 [EMAIL PROTECTED]
Re: edit file
How exactly would I go about replacing the DefaultDesktop.jpg image in core services with a objective c cocoa app. I'm just starting with cocoa, so any help is greatly appreciated. You'd want to write an application that uses AuthServices to obtain permission to use NSFileManager to back up the user's original DefaultDesktop.jpg (since you're a nice, well-behaved application and all), then to copy some other image over the original. Each of these things is well-documented in Apple's documentation and well-covered in this list's archives and there's a lot to know, so your first step is to read. A lot. ;-) -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Cocoa-dev Digest, Vol 5, Issue 682
Thanks. I had two instances of one of my classes in my IB document. Removing the extra one solved my problem. On Apr 25, 2008, at 9:36 PM, [EMAIL PROTECTED] wrote: Hey John - If init is being called twice on the same instance, that sounds like a bug. It should be pretty easy to figure out with a backtrace in the debugger. Of course, you should make sure there aren't two different instances. AwakeFromNib on the other hand will be called once each time you load a nib that references your object. Typically this means that awakeFromNib is called only once because most objects are only in one NIB. If you're object loads additional NIB files and is the file's owner, it will be called additional times. Good Luck - Jon Hess On Apr 25, 2008, at 9:41 AM, Johnny Lundy wrote: I know I saw something somewhere in reference to these methods getting called twice on app launch, but can't find it with searching. Is this expected behavior for vanilla -init and (void) awakeFromNib methods? I'm doing some short loops in these methods and calling other instance methods. For now, no harm is done with all this stuff being done twice, but I'd rather not have to worry about that if I add code. I don't see most examples routinely checking for a second invocation in these init methods so I wonder what is going on. Other than that, all the advice I got here has worked and I now have 350 lines of code and only one line is glue. Very nice learning experience for Bindings and I thank all who helped. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: One pixel width. One.
Setting a line width of 0 on NSBezierPath means draw it 1 pixel wide at whatever resolution the destination device is. 1 pixel on the screen aligned to an integer coordinate will draw two pixels wide at half the brightness (anti-aliasing). Thus, 1. offset your coordinates by 0.5 to avoid this effect. 2. RTFD. It's very well documented. hth, G. On 26 Apr 2008, at 1:58 am, Lorenzo wrote: Joe, thank you. That page helps. I succeeded, but I had to set the width to 0.01 because if I set it to zero I get a 2 pixels thick line when the scale is different than 1.0. Don't know why. Please follow me. [NSBezierPath setDefaultLineWidth:0.0]; ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSAlert
Problem solved, I had to fill in: [NSApp mainWindow] I cannot find out how to refer to the window of my single window program in the method: beginSheetModalForWindow Some help would be appreciated! ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
NSBezier Artifacts
I've been having a fair few issues with NSBezier boxes lately (a.k.a
boxes with rounded corners)
I've created a NSView subclass that contains the following code, then
threw a few on a window with some controls over the top:
- ( void ) drawRect: ( NSRect ) rect
{
NSBezierPath* thePath = [NSBezierPath bezierPath];
[thePath appendBezierPathWithRoundedRect:rect xRadius:10.0
yRadius:10.0];
[thePath fill];
}
the results are horrid: http://skitch.com/d2kagw/kemd/window
there's loads of artifacts on the initial draw as well as each when
the user interacts with the controls etc.
If I make them just plain rectangles - it works fine:
http://skitch.com/d2kagw/kemr/window
- ( void ) drawRect: ( NSRect ) rect
{
[NSBezierPath fillRect:rect];
}
Any ideas?
I just need to draw some boxes :D
Cheers!
/Az.
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