How to retrieve a vCard during an ISyncSession?
Hi, I'm writing a sync client which pulls Contacts entity from sync server; an unique identifier is associated with each record: given an ID, is there a way to load the corresponding vCard from address book? Even if data are similar (except for suffix :ABPerson), I can't find a record using recordsMatchingSearchElement: method. ISyncChange UID: 04854671-4DD3-41C8-9601-3AE65C1AAEA1 AddressBook UID: C8CD9946-D629-4CD1-90A4-F270190AC4A0:ABPerson Any ideas? Thanks in advance!___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to retrieve a vCard during an ISyncSession?
Why would you want to retrieve the vCard? The sync engine can give you all attributes for a record. Or maybe AddressBook framework is more suited to your needs laurent Sent from my road phone On Jun 30, 2010, at 7:59 AM, unixo un...@devzero.it wrote: Hi, I'm writing a sync client which pulls Contacts entity from sync server; an unique identifier is associated with each record: given an ID, is there a way to load the corresponding vCard from address book? Even if data are similar (except for suffix :ABPerson), I can't find a record using recordsMatchingSearchElement: method. ISyncChange UID: 04854671-4DD3-41C8-9601-3AE65C1AAEA1 AddressBook UID: C8CD9946-D629-4CD1-90A4-F270190AC4A0:ABPerson Any ideas? Thanks in advance!___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/lcerveau%40me.com This email sent to lcerv...@me.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: OpenAL and OGG
On 6/29/10, Development developm...@fornextsoft.com wrote:
Can open al not read ogg files? I'm attempting to load a short ogg clip and
I keep getting random errors.
getOpenALAudioData: ExtAudioFileOpenURL FAILED, Error = 1954115647
2010-06-29 15:13:53.965 MixPad[12402:207] error attaching audio to buffer:
a003
this is the file loading code, it is directly from an apple example
ALenum error = AL_NO_ERROR;
ALenum format;
ALsizei size;
ALsizei freq;
//NSBundle* bundle = [NSBundle mainBundle];
// get some audio data from a wave file
CFURLRef fileURL = (CFURLRef)[[NSURL fileURLWithPath:self.path] retain];
if (fileURL)
{
data = getOpenALAudioData(fileURL, size, format, freq);
CFRelease(fileURL);
if((error = alGetError()) != AL_NO_ERROR) {
NSLog(@error loading sound: %x\n, error);
exit(1);
}
// use the static buffer data API
alBufferDataStaticProc(self.alBufferID, format, data, size,
freq);
NSLog(@Format %i,format);
NSLog(@Data %i,sizeof(data));
if((error = alGetError()) != AL_NO_ERROR) {
NSLog(@error attaching audio to buffer: %x\n, error);
}
}
else
NSLog(@Could not find
file!\n);___
OpenAL is format agnostic. It doesn't know anything about file types.
It only accepts bytes of linear PCM.
Apple / Core Audio don't natively support Ogg.
Generally, if you want to use Ogg, you have to compile in the Ogg
Vorbis libraries from Xiph and use their APIs. ov_read() would be good
place to start looking.
-Eric
http://playcontrol.net/iphonegamebook
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Best way to compare CGFloats
Hello, I am stuck with floats (doubles, to be precise) comparison. In part of my app, I am dealing with NSPoint components (x, y) comparison. On 32bit architecture NSPoint components are floats, and direct comparison ( float1 == float2 ) works fine. But on 64bit, they are doubles and '==' does not work due to precision. Lets take an example: C and D are NSPoints. Lets say C is (1.000444089209850063, whatever) and D is (1.00, whatever). If my code is: if (C.x == D.x) thenDoSomething; , then thenDoSomething is not called. Of course. But on my needs, float is more than enough for precision. So question is, what is the most efficient (performance side) and simplest (coding side) way to compare those bastards? At the moment I am thinking about: a) BOOL _floatsOrDoublesAreEqual = ( (float)C.x == (float)D.x); b) BOOL _floatsOrDoublesAreEqual = ( fabs(C.x - D.x) = _epsilon ); , where _epsilon is something like 0.0001. Regards, Rimas M. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSImage drawing on 10.5 issue
On Mon, Jun 28, 2010 at 8:24 PM, Graham Cox graham@bigpond.com wrote: I have an NSImage which I generate by specifically creating a NSPDFImageRep and adding that to an empty image. Later this same image rep is used to write the image as a PDF file to disk. An interface displays these images, either loaded from disk or made on the fly as above. The image's native size is quite small and they are often scaled up when drawn, but since they're PDFs that should work OK. On 10.6, these render really nicely and I always get crisp drawing. On 10.5 however, they render quite fuzzily, which I'd prefer they didn't. Obviously the problem is the bitmap caching that NSImage does, and which must have changed for PDF images in 10.6. I set the caching of the image to NSImageCacheBySize, which gives me a useful drawing speed-up compared with NSImageCacheNever, but the cached bitmaps are fuzzy on 10.5, presumably because they're being scaled up and the bitmaps cached the original size, not the drawn size. Is there anything I can do about this? I set the context's image interpolation quality to high when these are drawn. Hi Graham, I'm a lot more familiar with the post-10.6 code than the 10.5 and before code, but I think you probably need to either turn off the cache or essentially manage your own cache by replacing the image when the scaling changes. Given that this problem is fixed in newer OSes, I would be tempted to just turn off the cache in 10.5. -Ken Cocoa Frameworks --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/kenferry%40gmail.com This email sent to kenfe...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to compare CGFloats
I usually use fabs() and compare to some small number for things like this, it explicitly says what your tolerance for 'same' is and if your points are going through a series of calculations, it's easy to get them to differ in the lower order bits however you cast them. On 30-Jun-2010, at 4:35 PM, Rimas M. wrote: Hello, I am stuck with floats (doubles, to be precise) comparison. In part of my app, I am dealing with NSPoint components (x, y) comparison. On 32bit architecture NSPoint components are floats, and direct comparison ( float1 == float2 ) works fine. But on 64bit, they are doubles and '==' does not work due to precision. Lets take an example: C and D are NSPoints. Lets say C is (1.000444089209850063, whatever) and D is (1.00, whatever). If my code is: if (C.x == D.x) thenDoSomething; , then thenDoSomething is not called. Of course. But on my needs, float is more than enough for precision. So question is, what is the most efficient (performance side) and simplest (coding side) way to compare those bastards? At the moment I am thinking about: a) BOOL _floatsOrDoublesAreEqual = ( (float)C.x == (float)D.x); b) BOOL _floatsOrDoublesAreEqual = ( fabs(C.x - D.x) = _epsilon ); , where _epsilon is something like 0.0001. Regards, Rimas M. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/rols%40rols.org This email sent to r...@rols.org ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to compare CGFloats
Le 30 juin 2010 à 10:35, Rimas M. a écrit : Hello, I am stuck with floats (doubles, to be precise) comparison. In part of my app, I am dealing with NSPoint components (x, y) comparison. On 32bit architecture NSPoint components are floats, and direct comparison ( float1 == float2 ) works fine. But on 64bit, they are doubles and '==' does not work due to precision. Lets take an example: C and D are NSPoints. Lets say C is (1.000444089209850063, whatever) and D is (1.00, whatever). If my code is: if (C.x == D.x) thenDoSomething; , then thenDoSomething is not called. Of course. But on my needs, float is more than enough for precision. So question is, what is the most efficient (performance side) and simplest (coding side) way to compare those bastards? At the moment I am thinking about: a) BOOL _floatsOrDoublesAreEqual = ( (float)C.x == (float)D.x); b) BOOL _floatsOrDoublesAreEqual = ( fabs(C.x - D.x) = _epsilon ); , where _epsilon is something like 0.0001. You should not rely on the fact that it works with float. Comparing floating point value is never safe. So, as the solution a does not solve the problem (you cannot safely compare floating point value), I would choose the b. -- Jean-Daniel ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to compare CGFloats
On 30 Jun 2010, at 09:35, Rimas M. wrote: So question is, what is the most efficient (performance side) and simplest (coding side) way to compare those bastards? At the moment I am thinking about: a) BOOL _floatsOrDoublesAreEqual = ( (float)C.x == (float)D.x); b) BOOL _floatsOrDoublesAreEqual = ( fabs(C.x - D.x) = _epsilon ); , where _epsilon is something like 0.0001. fabs is the right way to do this in most cases, *but* with co-ordinate values it may be that you are actually more interested in the distance of one point from the other---i.e. you might in fact be interested in CGFloat dx = C.x - D.x, dy = C.y - D.y; BOOL pointsAreEqual = (dx * dx + dy * dy) epsilonSquared; It rather depends on what you want, and that's going to differ from one application to another. Kind regards, Alastair. -- http://alastairs-place.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
CALayer-hosting view and child NSView's
Hi, I'd like to create a custom view based on Core Animation, namely, a layer-hosting view. In other words, I'd like to directly manipulate layers in my code rather than using children NSView's. The custom view is like a matrix consisting of cells. Each cell is represented with a separate CALayer. However, certain cells should contain standard buttons like if they were child views of those cell layers. In other words, when I move the cell layer, the button needs to move synchronously; when I hide the cell layer, the button needs to hide as well. I would like to use the standard NSButton control, to avoid reinventing the wheel. But if I just place the button as a first-level child view of the custom view, it will not be associated with its parent cell layer. I also cannot access and manipulate NSButton's root layer to add it as a sublayer to the cell layer, AFAIK. So what is the best way around? Thanks! Oleg. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to compare CGFloats
Thanks everyone for answers. Now situation is more clear. On Wed, Jun 30, 2010 at 12:14 PM, Alastair Houghton alast...@alastairs-place.net wrote: fabs is the right way to do this in most cases, *but* with co-ordinate values it may be that you are actually more interested in the distance of one point from the other---i.e. you might in fact be interested in CGFloat dx = C.x - D.x, dy = C.y - D.y; BOOL pointsAreEqual = (dx * dx + dy * dy) epsilonSquared; It rather depends on what you want, and that's going to differ from one application to another. In my case I am interested in x's and y's comparison. Not points as themselves. But your suggestion gave me another question, which I have never thought about before - how NSEqualPoints, ...Rects etc works? I guess they *must* be safe to use, because NSPoint, NSRect etc relies on floats/doubles. Or they uses the same '==' and are TRUE only if points/rects are *really* equal? Best Regards, Rimas M. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to compare CGFloats
On 30 Jun 2010, at 10:46, Rimas M. wrote: In my case I am interested in x's and y's comparison. Not points as themselves. But your suggestion gave me another question, which I have never thought about before - how NSEqualPoints, ...Rects etc works? I guess they *must* be safe to use, because NSPoint, NSRect etc relies on floats/doubles. Or they uses the same '==' and are TRUE only if points/rects are *really* equal? I think they test for exact equality. Whether that's documented or not I'm not certain, but disassembling those functions appears to support that conclusion. Kind regards, Alastair. -- http://alastairs-place.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSImage drawing on 10.5 issue
On 30/06/2010, at 6:36 PM, Ken Ferry wrote: On Mon, Jun 28, 2010 at 8:24 PM, Graham Cox graham@bigpond.com wrote: I have an NSImage which I generate by specifically creating a NSPDFImageRep and adding that to an empty image. Later this same image rep is used to write the image as a PDF file to disk. An interface displays these images, either loaded from disk or made on the fly as above. The image's native size is quite small and they are often scaled up when drawn, but since they're PDFs that should work OK. On 10.6, these render really nicely and I always get crisp drawing. On 10.5 however, they render quite fuzzily, which I'd prefer they didn't. Obviously the problem is the bitmap caching that NSImage does, and which must have changed for PDF images in 10.6. I set the caching of the image to NSImageCacheBySize, which gives me a useful drawing speed-up compared with NSImageCacheNever, but the cached bitmaps are fuzzy on 10.5, presumably because they're being scaled up and the bitmaps cached the original size, not the drawn size. Is there anything I can do about this? I set the context's image interpolation quality to high when these are drawn. Hi Graham, I'm a lot more familiar with the post-10.6 code than the 10.5 and before code, but I think you probably need to either turn off the cache or essentially manage your own cache by replacing the image when the scaling changes. Given that this problem is fixed in newer OSes, I would be tempted to just turn off the cache in 10.5. Hi Ken, thanks for the suggestion. I've tried that, but the results are strange - I'm not sure I really understand what's going on. When I render these icons, I do so in a custom cell which can either operate using NSImageScaleProportionallyDown, or NSImageScaleProportionallyUpOrDown. The user is able to switch between these to show icons either at actual size (or smaller), or scaled up to fill the cell. Whichever one is displayed first, it seems to fix the resolution of the icon at that size forever after, even though caching is supposedly off and the cache has been cleared (-recache). So it's still caching the PDF to a bitmap it seems, at least on 10.5 (As I said on 10.6 I have none of these issues). Do I need to manipulate the cache setting for the PDF image rep itself? I thought that whatever you set NSImage to do applied to all its reps, no? The docs say that NSPDFImageRep sets NSImageCacheAlways by default, so does passing 'never' to its containing image actually change this? The cell drawing code is clean, as far as I can see (does nothing but draw the image, it doesn't change the image's state in any way), and loading the icon is little more than doing [NSImage imageWithContentsOfFile:] followed by setting the cache to NSImageCacheNever and calling -recache. Mystified.. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSImage drawing on 10.5 issue
On 30/06/2010, at 10:22 PM, Graham Cox wrote: Do I need to manipulate the cache setting for the PDF image rep itself? The answer must be 'no', since there's no API to do so... --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSImage drawing on 10.5 issue [SOLVED]
On 30/06/2010, at 10:22 PM, Graham Cox wrote: Given that this problem is fixed in newer OSes, I would be tempted to just turn off the cache in 10.5. Hi Ken, thanks for the suggestion. I've tried that, but the results are strange - I'm not sure I really understand what's going on. OK, I found the answer (turn off caching, as you suggested ;) The problem was the branch that was supposed to do this on 10.5 wasn't being taken due to a faulty test for the appkit version. Fixed that and now all is well (with slightly slower drawing, but I can live with it). thanks again, Graham___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to compare CGFloats
On Wed, Jun 30, 2010 at 1:06 PM, Alastair Houghton alast...@alastairs-place.net wrote: I think they test for exact equality. Whether that's documented or not I'm not certain, but disassembling those functions appears to support that conclusion. I see. Hope that will not cause any unexpected problems. For now I am going to use: #define cDefaultFloatComparisonEpsilon 0.0001 #define cEqualFloats(f1, f2, epsilon) ( fabs( (f1) - (f2) ) epsilon ) #define cNotEqualFloats(f1, f2, epsilon)( !cEqualFloats(f1, f2, epsilon) ) Thank you for your help. Regards, Rimas M. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to compare CGFloats (Rick B.)
I am stuck with floats (doubles, to be precise) comparison.
Machine 'real-numbers' such as floats and doubles should be thought of
as intervals or neighborhoods near the mathematical number. Tests for
'equality' of machine reals should never use machine equality '=='
operators. 'Equality' of two machine reals , in this case, means that
the two numbers are separated by a distance less than some small
number, such as '(fabs(a-b) epsilon)'. Exactly what the value of
epsilon should be gets a little tricky.
Hope that I am not being too pedantic but imo you should never test
for 'equality' ('==') when using machine real data types.
Rick B.
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Re: Best way to compare CGFloats (Rick B.)
On 30 Jun 2010, at 15:56, Frederick Bartram wrote:
Hope that I am not being too pedantic but imo you should never test for
'equality' ('==') when using machine real data types.
Sometimes you really do want binary equivalence, and in that case == may be the
right thing to use. Normally, though, you're quite right, you need to be
careful with floating point comparisons (not just equality tests, actually;
sometimes for greater-than or less-than comparisons you might want two floats
to be un-ordered if they're close in value).
I thought it'd be useful to link to the excellent What Every Computer
Scientist Should Know About Floating-Point Arithmetic, since that's usually
the best thing to give to people who are worrying about this kind of thing:
http://dlc.sun.com/pdf/800-7895/800-7895.pdf
http://docs.sun.com/source/806-3568/ncg_goldberg.html
Anyone who hasn't read it should.
Kind regards,
Alastair.
--
http://alastairs-place.net
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Re: Best way to compare CGFloats (Rick B.)
On Wed, Jun 30, 2010 at 11:11 AM, Alastair Houghton
alast...@alastairs-place.net wrote:
On 30 Jun 2010, at 15:56, Frederick Bartram wrote:
Hope that I am not being too pedantic but imo you should never test for
'equality' ('==') when using machine real data types.
Sometimes you really do want binary equivalence, and in that case == may be
the right thing to use.
While we're being pedantic, note that == is not always the same as
binary equivalence. For example, 0.0 == -0.0, and x != x when x =
NAN.
Using == can make sense when you know that your values are exact
integers, which is not an uncommon scenario, but neither is it the
usual one.
Mike
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Calling javascript from Cocoa 'facelessly'
My company has a webpage (internal, sadly, so I can't let you have a link to look at) which is entirely driven by Javascript, and which requires authentication to access (the authentication too is driven by Javascript, rather than by the more normal https sign in methods). The website is a) ugly as hell, b) not very flexible and c) won't format correctly on the screen of an iPhone. The first issue is aesthetic, the second is a serious issue and the third could well be a problem in the future. The obvious answer would be 'change the site', but that isn't very practical sadly - political issue, don'tchaknow! I'm working hard to increase uptake of Apple equipment at work, and if I can encapsulate the website as a friendly app on the Mac that could be a major driver. This is just a project that I'm kicking around out of hours for the love of it and in the hope that Macs might end up being a preferred solution! Initially, I just want to produce a proof of concept which runs at the command line (the connection will be implemented as a faceless plug in) and I don't want a webview in the UI. So, that said, I cobbled together the following test: //for header IBOutlet WebView * webView; NSDictionary* pluginPrefs; //for body NSString* preferencesFile = [NSHomeDirectory() stringByAppendingPathComponent:@/Desktop/Prefs.plist]; pluginPrefs = [[NSDictionary alloc] initWithContentsOfFile:preferencesFile]; WebFrame *mainFrame = [webView mainFrame]; NSURL *url = [NSURL URLWithString:[pluginPrefs objectForKey:@ServerURL]]; NSURLRequest *request = [NSURLRequest requestWithURL:url]; [mainFrame loadRequest:request]; id win = [webView windowScriptObject]; NSArray *args = [NSArray arrayWithObjects: @signIn, [pluginPrefs objectForKey:@Username], [pluginPrefs objectForKey:@Password], nil]; //login (in theory!) NSLog(@Parameters: %@, %@,[pluginPrefs objectForKey:@Username],[pluginPrefs objectForKey:@Password]); id result = [win callWebScriptMethod:@muc.userAuth withArguments:args]; if(![result isMemberOfClass:[WebUndefined class]]) NSLog(@%@, result); else NSLog(@Unable to initialize connection); The code builds correctly, and runs - but, just for starters, the result seems to be wrong (it should return 'Unable to initialize connection' as far as I can tell), because it always returns the same result whether I have a 'valid' javascript function or not. Of course, once (if!) I get it to connect correctly, I then need to solve the problem of capturing the stream of messages that will be received in not-quite-real-time. I'll cross that bridge when I come to it. The muc.userAuth function can be found in and external .js file, referenced in the page html with the following tag: script type=text/javascript src=../js/ejc.js?ver=2.0.1.1/script I realize that this is a hell of a big query, and I'm not entirely sure that I've given enough information for anyone to help answer it. At the very least, I guess I'm hoping for a reference to some really solid documentation on how to do what I'm trying to do - the documentation on ADC seems to be a little light in this area. Thanks, and regards, Geoff___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Tracking multiple NSURLConnections
(Coming late to this thread...) I recently used both approaches. Subclassing NSURLConnection worked nicely and was quick to code when I had just one kind of delegate behavior. When I had to add other kinds of delegate behavior I switched to the multiple-delegate-classes approach and used plain NSURLConnection. My classes are lightweight wrappers that hide the NSURLConnection machinery and define their own delegates (this is the weak pointer Dave described). My classes' delegates are notified when either (1) the connection fails, (2) the connection finishes getting the data and the data is invalid, or (3) the connection finishes getting the data and the data is okay. This was my first time using NSURLConnection, so I'm glad each of the two approaches I used makes sense to at least one other person. :) --Andy On 29 Jun, 2010,at 03:31 PM, Stevo Brock st...@monkey-tools.com wrote: You could also subclass NSURLConnection and add any additional data to your subclass that you can easily access in the callbacks. On Jun 29, 2010, at 12:11 PM, Dave DeLong wrote: If you're spawning dozens of connections, you may want to consider giving each one a separate delegate object and encapsulating that connection's specific logic in that delegate. The url connection delegate might then have a weak pointer back to the original controller to notify when the connection is finished, at which point the controller could extract any data it needs from the connection delegate. Dave On Jun 29, 2010, at 1:08 PM, lorenzo7...@gmail.com wrote: Now, a devil's advocate question: If I have lots of connections, say two dozen, or say I'm spawning connections continuously, would this be the most efficient way of doing this? I'd likely store them in an NSArray and iterate/compare until I find the right one. There could be lots of comparisons. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/stevo%40monkey-tools.com This email sent to st...@monkey-tools.com -Stevo ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/aglee%40maccom This email sent to ag...@mac.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Calling javascript from Cocoa 'facelessly'
On Wed, Jun 30, 2010 at 1:01 PM, Geoffrey Holden 45rpmli...@googlemail.com wrote: I realize that this is a hell of a big query, and I'm not entirely sure that I've given enough information for anyone to help answer it. At the very least, I guess I'm hoping for a reference to some really solid documentation on how to do what I'm trying to do - the documentation on ADC seems to be a little light in this area. From the code you've posted, I suspect the problem is that the page hasn't actually loaded by the time you try to run your JS code. WebView generally works asynchronously. Something like [mainFrame loadRequest:request] will return quickly and the WebView will not actually load things until the runloop runs, and then you'll get notified later on when it's done loading. What you'll want to do is call loadRequest:, then run the NSRunLoop on the main thread until your load delegate is told that the page is done loading. Then you should be able to do your JS stuff. Note that it is possible, and not all that hard, to run an NSRunLoop in a faceless program, it just requires a bit more manual intervention than in a GUI app where it's all set up for you. If you're already doing that and your code was just abbreviated, well, ignore the above Mike ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSOpenPanel won't allow selecting aliases
On Tue, 29 Jun 2010 20:34:11 -0700, Seth Willits said: Yes. I didn't quite realize that's what was happening. Hmm. So now I have to figure out how allow aliases through in my delegate method. Since they don't just pop up as folders, I have to find something that identifies them as aliases to folders... The NDAlias code should be helpful to you: http://github.com/nathanday/ndalias -- Sean McBride, B. Eng s...@rogue-research.com Rogue Researchwww.rogue-research.com Mac Software Developer Montréal, Québec, Canada ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best way to compare CGFloats (Rick B.)
On 30 Jun 2010, at 17:37, Michael Ash wrote: While we're being pedantic, note that == is not always the same as binary equivalence. For example, 0.0 == -0.0, and x != x when x = NAN. That's a good point. I spoke inaccurately. Using == can make sense when you know that your values are exact integers, which is not an uncommon scenario, but neither is it the usual one. It may also make sense sometimes with floating point values. An example might be where you have an object that you're using as the key for an NSDictionary; in that case, your -isEqual: method may well want to do a proper equality test. These are, however, special situations. Kind regards, Alastair. -- http://alastairs-place.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
class_respondsToSelector() in runtime.h?
I need to check for backward compatibility whether a given class object responds to a selector. I found the function 'class_respondsToSelector()' which the doc says is defined in 'runtime.h'. However, I can't find that header anywhere. Does anybody know where that header might be? No, it's not in /usr/include... -Laurent. -- Laurent Daudelin AIM/iChat/Skype:LaurentDaudelin http://www.nemesys-soft.com/ Logiciels Nemesys Software laur...@nemesys-soft.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: class_respondsToSelector() in runtime.h?
#import objc/runtime.h Dave Sent from my iPhone On Jun 30, 2010, at 1:43 PM, Laurent Daudelin laur...@nemesys-soft.com wrote: I need to check for backward compatibility whether a given class object responds to a selector. I found the function 'class_respondsToSelector()' which the doc says is defined in 'runtime.h'. However, I can't find that header anywhere. Does anybody know where that header might be? No, it's not in /usr/include... -Laurent ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: class_respondsToSelector() in runtime.h?
On Jun 30, 2010, at 12:43 PM, Laurent Daudelin wrote: I need to check for backward compatibility whether a given class object responds to a selector. I found the function 'class_respondsToSelector()' which the doc says is defined in 'runtime.h'. Is there some reason you can't call -respondsToSelector: on the class object? -- Greg Parker gpar...@apple.com Runtime Wrangler ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: class_respondsToSelector() in runtime.h?
On Jun 30, 2010, at 16:55, Greg Parker wrote: On Jun 30, 2010, at 12:43 PM, Laurent Daudelin wrote: I need to check for backward compatibility whether a given class object responds to a selector. I found the function 'class_respondsToSelector()' which the doc says is defined in 'runtime.h'. Is there some reason you can't call -respondsToSelector: on the class object? Well, isn't -respondsToSelector: an instance method? -Laurent. -- Laurent Daudelin AIM/iChat/Skype:LaurentDaudelin http://www.nemesys-soft.com/ Logiciels Nemesys Software laur...@nemesys-soft.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: class_respondsToSelector() in runtime.h?
On Jun 30, 2010, at 2:35 PM, Laurent Daudelin laur...@nemesys-soft.com wrote: On Jun 30, 2010, at 16:55, Greg Parker wrote: Is there some reason you can't call -respondsToSelector: on the class object? Well, isn't -respondsToSelector: an instance method? Remember that NSObject is a root class. --Kyle Sluder___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: class_respondsToSelector() in runtime.h?
On Jun 30, 2010, at 17:41, Kyle Sluder wrote: On Jun 30, 2010, at 2:35 PM, Laurent Daudelin laur...@nemesys-soft.com wrote: On Jun 30, 2010, at 16:55, Greg Parker wrote: Is there some reason you can't call -respondsToSelector: on the class object? Well, isn't -respondsToSelector: an instance method? Remember that NSObject is a root class. Yes, I know that, but can you send an instance method to a class object? -Laurent. -- Laurent Daudelin AIM/iChat/Skype:LaurentDaudelin http://www.nemesys-soft.com/ Logiciels Nemesys Software laur...@nemesys-soft.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: class_respondsToSelector() in runtime.h?
On Jun 30, 2010, at 2:35 PM, Laurent Daudelin wrote:
Well, isn't -respondsToSelector: an instance method?
if ([[Someclass class] respondsToSelector:@selector(classSelector)]) {
// yup
}
--
Dave Carrigan
d...@rudedog.org
Seattle, WA, USA
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Re: class_respondsToSelector() in runtime.h?
On Jun 30, 2010, at 2:42 PM, Laurent Daudelin wrote: Yes, I know that, but can you send an instance method to a class object? Yes, you can. Every class object is itself an instance of NSObject. Therefore, every class object also responds to all of NSObject's instance methods. http://sealiesoftware.com/blog/archive/2009/04/14/objc_explain_Classes_and_metaclasses.html (Pedantically, every class object is itself an instance of its root class. But to a close approximation that root class is always NSObject.) -- Greg Parker gpar...@apple.com Runtime Wrangler ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSString ambiguities
Hi,
If we read whole file as a NSString, will be any conversions between \r\n,
\r, \n? Then if not, will be -componentsSeparatedByCharactersInSet:
[NSCharacterSet newlineCharacterSet] create empty strings in Win \r\n case?
So what is the best: [NSCharacterSet newlineCharacterSet] or [NSCharacterSet
characterSetWithCharactersInString: @\n] or simply
-componentsSeparatedByString: @\n?
code:
NSString *string = [[NSString alloc] initWithContentsOfFile: name encoding:
NSUTF8StringEncoding error: NULL];
NSArray *array = [string componentsSeparatedByCharactersInSet:
[NSCharacterSet newlineCharacterSet]];
[string release];
string = nil;
NSMutableString *outString = [NSString new];
for (string in array) {
if (![string isEqualToString: @]) {
// ...
[outString appendFormat: @%...@\n, string];
}
}
[outString writeToFile: outName atomically: NO encoding:
NSUTF8StringEncoding error: NULL];
--
best regards
Ariel
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Re: class_respondsToSelector() in runtime.h?
On Jun 30, 2010, at 17:48, Greg Parker wrote: On Jun 30, 2010, at 2:42 PM, Laurent Daudelin wrote: Yes, I know that, but can you send an instance method to a class object? Yes, you can. Every class object is itself an instance of NSObject. Therefore, every class object also responds to all of NSObject's instance methods. http://sealiesoftware.com/blog/archive/2009/04/14/objc_explain_Classes_and_metaclasses.html (Pedantically, every class object is itself an instance of its root class. But to a close approximation that root class is always NSObject.) Thanks, Greg. I guess you learn something new every day. I've never had to check if a class object responded to a selector before but now that's good to know! Going back to my code now... -Laurent. -- Laurent Daudelin AIM/iChat/Skype:LaurentDaudelin http://www.nemesys-soft.com/ Logiciels Nemesys Software laur...@nemesys-soft.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSString ambiguities
On Jun 30, 2010, at 3:02 PM, Ariel Feinerman wrote: If we read whole file as a NSString, will be any conversions between \r\n, \r, \n? Then if not, will be -componentsSeparatedByCharactersInSet: [NSCharacterSet newlineCharacterSet] create empty strings in Win \r\n case? So what is the best: [NSCharacterSet newlineCharacterSet] or [NSCharacterSet characterSetWithCharactersInString: @\n] or simply -componentsSeparatedByString: @\n? What's best is enumerateSubstringsInRange:options:usingBlock:. You can use NSStringEnumerationByParagraphs to handle all the standard paragraph separators. Prior to 10.6, use paragraphRangeForRange: or getParagraphStart:end:contentsEnd:forRange: and construct your own loop. Douglas Davidson___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
configurePersistentStoreCoordinatorForURL:ofType: modelConfiguration: storeOptions:error
According to the doco, the above method is used to customise creation of the
persistent store especially with regards to the store type. So I've been using
the below code, which works perfectly fine for NSBinaryStoreType and
NSXMLStoreType, but with NSSQLiteStoreType I get lots of merge errors when
saving documents that I don't get if I completely remove the below code and let
the framework handle it. Apparently I'm doing something subtlety wrong. Does
anyone know what? At times like this I wish Apple would make their source code
visible to developers.
- (BOOL)configurePersistentStoreCoordinatorForURL:(NSURL *)url ofType:(NSString
*)fileType modelConfiguration:(NSString *)configuration
storeOptions:(NSDictionary *)storeOptions error:(NSError **)error; {
if(![[[selfmanagedObjectContext] persistentStoreCoordinator]
addPersistentStoreWithType:NSSQLiteStoreTypeconfiguration:nilURL:url
options:[NSDictionarydictionaryWithObjectsAndKeys:[NSNumbernumberWithBool:YES],
NSMigratePersistentStoresAutomaticallyOption, [NSNumbernumberWithBool:YES],
NSInferMappingModelAutomaticallyOption, nil] error:error]){
[[NSApplicationsharedApplication] presentError:*error];
returnNO;
} else {
returnYES;
}
}
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Re: How to revert to an unedited document window?
That was the suggestion I needed. Thank you. Here's what I did in the windowControler: [doc removeWindowController:self]; [[self managedObjectContext] rollback]; [doc close]; and then I use my normal routine to reload the document. On Jun 29, 2010, at 12:23 PM, Jerry Krinock wrote: On 2010 Jun 29, at 05:23, Brad Stone wrote: Using [NSPersistentDocument revertToContentsOfURL:(NSURL *)inAbsoluteURLofType:(NSString *)inTypeName error:(NSError**)outError] works except the window closes and opens. If that didn't happen I'd be fine. Reverting a Core Data document is tricky. Apple's recommended methods are given here: http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/NSPersistentDocumentTutorial/04_Department/department.html#//apple_ref/doc/uid/TP40002832-SW6 But you should also read these: http://www.cocoabuilder.com/archive/cocoa/161579-bug-in-nspersistentdocument-tutorial.html#161579 http://www.cocoabuilder.com/archive/cocoa/174292-bug-nspersistentdocument-core-data-tutorial.html#174292 http://www.cocoabuilder.com/archive/cocoa/177523-bug-nspersistentdocument-core-data-tutorial.html#177523 Since Revert is not a major advertised feature of the app I was working on, after trying unsuccessfully to make it work for an hour or so, I gave up and implemented Revert to simply close and re-open the document. It's a little slow and ugly, but it works, and eliminates a branch of regression possibilities. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cocoa-dev%40softraph.com This email sent to cocoa-...@softraph.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: configurePersistentStoreCoordinatorForURL:ofType: modelConfiguration: storeOptions:error
On 2010 Jun 30, at 16:42, Chris Idou wrote: According to the doco, the above method is used to customise creation of the persistent store especially with regards to the store type. In my documentation, it's a little different: Configures the receiver’s persistent store coordinator with the appropriate stores for a given URL. So I've been using the below code, which works perfectly fine for NSBinaryStoreType and NSXMLStoreType, but with NSSQLiteStoreType I get lots of merge errors when saving documents that I don't get if I completely remove the below code and let the framework handle it. Apparently I'm doing something subtlety wrong. Does anyone know what? Not subtle. Apparently, adding a persistent store as you're doing is not sufficient to configure an sqlite store, whatever Apple means by that. I'm not surprised! Try invoking super. More specifically, since it appears that all you want to do is add a couple of key/value pairs to the store options, do an internet search for mmalc's MigratingDepartmentAndEmployees Sample Code and override that method like he does. At times like this I wish Apple would make their source code visible to developers. That may have been helpful ten years ago (and the GNUStep source is still around). But in the case of Core Data, I suspect that taking time out to sift through Apple's source code would not be very productive :)) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
