Re: NSTableView and OutineView resizing bugs
On 23/ago/09, at 04:33, Adam R. Maxwell wrote: On Aug 21, 2009, at 1:45 PM, Ernesto Giannotta wrote: After a lot of tests I've noticed that this bug is greatly reduced if drawsBackground is set to false, but I still can see a white line and a ghost right image while enlarging. Have you seen this? http://www.cocoabuilder.com/archive/message/cocoa/2009/3/2/231390 Thanks Adam! I've spent days looking for that bit of knowledge... It worked like charm... but only if you set DrawBackground off ;-) Cool Runnings, Erne. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
Problem with unbind:
Dear list,
I've been trying to do some programmatic bindings because I want to
change a binding depending on the state of a check box. In more
detail, I have an NSArrayController whose contents I want to bind to
either all entities of a particular type in the MOC, or to a subset of
those. This is a 'show all' check box.
So far I have tried the following code:
- (IBAction)showAllEntries:(id)sender
{
if([showAllCheckButton state]==NSOnState) {
NSLog(@Showing all);
[entryArrayController unbind:@contentSet];
} else {
NSLog(@Showing category entries);
[entryArrayController bind:@contentSet
toObject:categoryArrayController
withKeyPath:@selection.entries
options:nil];
}
}
When the app launches, my bound table view shows all entries. When I
uncheck the check box, the table is emptied because none of the
entries has any categories assigned, as yet. Re-checking the check-
box, however, does not yield the full list again. I was hoping that
unbinding the binding would return the array controller to the state
it was before I set the binding, and hence the table view would be
repopulated.
A further detail: the core data model has two entities, an Entry and a
Category. They have a many-many relationship:
categories - entries
I'm sure I'm going wrong in many ways, and would appreciate any
pointers to get me on the right track. Essentially what I'm aiming for
is that entries can belong to none or many categories. So I want to be
able to show the list of entries that are in one or more categories,
but also I want to show a full list, independent of the categories
(the 'show all' feature).
Best wishes,
Martin
Martin Hewitson
Albert-Einstein-Institut
Max-Planck-Institut fuer
Gravitationsphysik und Universitaet Hannover
Callinstr. 38, 30167 Hannover, Germany
Tel: +49-511-762-17121, Fax: +49-511-762-5861
E-Mail: martin.hewit...@aei.mpg.de
WWW: http://www.aei.mpg.de/~hewitson
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Re: Problem with unbind:
I've found what may be considered a workaround. I can unbind the
Content Set then use a fetch request and setContent: to get back the
full list. The code looks like:
NSManagedObjectContext *moc = [self managedObjectContext];
NSFetchRequest *request = [[NSFetchRequest alloc] init];
[request setEntity:[NSEntityDescription entityForName:@Entry
inManagedObjectContext:moc]];
NSError *error = nil;
NSArray *results = [moc executeFetchRequest:request
error:error];
if (error) {
[NSApp presentError:error];
return;
}
[entryArrayController setContent:results];
Not sure this is the most elegant way to do this, but it seems to work.
On Aug 23, 2009, at 11:30 AM, Martin Hewitson wrote:
Dear list,
I've been trying to do some programmatic bindings because I want to
change a binding depending on the state of a check box. In more
detail, I have an NSArrayController whose contents I want to bind to
either all entities of a particular type in the MOC, or to a subset
of those. This is a 'show all' check box.
So far I have tried the following code:
- (IBAction)showAllEntries:(id)sender
{
if([showAllCheckButton state]==NSOnState) {
NSLog(@Showing all);
[entryArrayController unbind:@contentSet];
} else {
NSLog(@Showing category entries);
[entryArrayController bind:@contentSet
toObject:categoryArrayController
withKeyPath:@selection.entries
options:nil];
}
}
When the app launches, my bound table view shows all entries. When I
uncheck the check box, the table is emptied because none of the
entries has any categories assigned, as yet. Re-checking the check-
box, however, does not yield the full list again. I was hoping that
unbinding the binding would return the array controller to the state
it was before I set the binding, and hence the table view would be
repopulated.
A further detail: the core data model has two entities, an Entry and
a Category. They have a many-many relationship:
categories - entries
I'm sure I'm going wrong in many ways, and would appreciate any
pointers to get me on the right track. Essentially what I'm aiming
for is that entries can belong to none or many categories. So I want
to be able to show the list of entries that are in one or more
categories, but also I want to show a full list, independent of the
categories (the 'show all' feature).
Best wishes,
Martin
Martin Hewitson
Albert-Einstein-Institut
Max-Planck-Institut fuer
Gravitationsphysik und Universitaet Hannover
Callinstr. 38, 30167 Hannover, Germany
Tel: +49-511-762-17121, Fax: +49-511-762-5861
E-Mail: martin.hewit...@aei.mpg.de
WWW: http://www.aei.mpg.de/~hewitson
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Martin Hewitson
Albert-Einstein-Institut
Max-Planck-Institut fuer
Gravitationsphysik und Universitaet Hannover
Callinstr. 38, 30167 Hannover, Germany
Tel: +49-511-762-17121, Fax: +49-511-762-5861
E-Mail: martin.hewit...@aei.mpg.de
WWW: http://www.aei.mpg.de/~hewitson
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NSAttributedString and Scripting Bridge
I've successfully used Scripting Bridge to pass plain text and attachments to Mail for sending, as part of an internal (non public) app. I'd like if possible to send mail as rich text. I have the message as an NSAttributedString, and can easily get this as all sorts of formats, such as RTF. However, the Scripting Bridge works with Applescript's 'text' type (or 'mailText' in this case) which is completely different - it's just a tree of paragraphs and attribute runs. Before I embark on a very long-winded conversion to this form, has anyone already done it, or knows of a quicker way? I'm surprised if there's no support for this built-in somewhere. --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: User interface validation doesn't work, right?
Just ran into the same problem and came up with HHValidatedButton: http://www.bernard-web.com/pierre/blog/index.php?id=6542976061063123843 Pierre Bernard On Jul 1, 2009, at 11:24 PM, Bill Cheeseman wrote: For years, the Implementing Validation section of Apple's User Interface Validation document has said the following: Before it is displayed, a user interface item checks to see if its target implements validateUserInterfaceItem:. If it does, then the enabled status of the item is determined by the return value of the method. You can therefore conditionally enable or disable an item by implementing validateUserInterfaceItem: in the target object. This has never been true. Right? My custom window controller implements the action method for a button, so it is the button's target, and it also implements - validateUserInterfaceItem:, all according to the User Interface Validation document. But my -validateUserInterfaceItem: method is never called. If I want it to be called automatically, by analogy to - validateMenuItem:, I have to override NSWindow's -update method, by analogy to -[NSMenu update]. In my override of -update, I have to do for myself what the document claims already happens -- or I have to observe NSWindow's -NSWindowDidUpdateNotification. Right? -- Bill Cheeseman b...@cheeseman.name ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/pierre.bernard%40lists.houdah.com This email sent to pierre.bern...@lists.houdah.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: Making an NSTableView Display Articles From An RSS Feed.
On Aug 23, 2009, at 8:04 AM, Joshua Garnham joshua.garn...@yahoo.co.uk wrote: But how exactly would I do this? It's easy! You just write the code to do it. Simple as that. Seriously, you need to break down your problem. It involves getting the contents of an RSS feed and displaying these contents in an NSTableView. Getting the RSS feed involves making an HTTP request and parsing the resultant XML. And so on until you get to chunks you can attempt yourself. --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: leak in a sound function
On Aug 23, 2009, at 9:53 AM, Agha Khan agha.k...@me.com wrote: + (void) PlaySound:(int) Index Method names should begin with lowercase letters. Classes really are the only things in ObjC that are typically capitalized. Also you should be using the NSUInteger typedef here. NSBundle* bundle = [NSBundle mainBundle]; … [bundle release]; You need to reread the memory management documentation again. You didn't get the bundle through alloc, new, or copy, and there you don't own it and mustn't release it. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to interact with Web pages using Cocoa?
On Aug 23, 2009, at 8:04 AM, albert jordan Mobility albertjor...@me.com wrote: I am trying to write a test program that will be entering configuration data on a web page and press a button in the web page continuously. Is there a proven method to do this with Objective C? WebKit. --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: leak in a sound function
Thank you All.
I came from Windows and this is my first project with Objective-C.
I am looking Mac provided file SoundEngine.cpp about line 770
OSStatus LoadTrack(const char* inFilePath, Boolean inAddToQueue,
Boolean inLoadAtOnce)
I realized we are creating pointer to BG_FileInfo pointer and never
released when we again allocating same pointer. That is a leak. So I
changed from
BG_FileInfo *fileInfo = new BG_FileInfo;
to
static BG_FileInfo *fileInfo = NULL;
if (fileInfo != NULL)
{
delete fileInfo;
fileInfo = NULL;
}
fileInfo = new BG_FileInfo;
Now there is no leak. :-)
I also tried NSBundle* bundle = [[NSBundle mainBundle] retain];
but leak was still there.
All comment are appreciated.
Need more comments what I did is correct.
Best regards
Agha
On Aug 23, 2009, at 11:17 AM, Kyle Sluder wrote:
On Aug 23, 2009, at 9:53 AM, Agha Khan agha.k...@me.com wrote:
+ (void) PlaySound:(int) Index
Method names should begin with lowercase letters. Classes really are
the only things in ObjC that are typically capitalized.
Also you should be using the NSUInteger typedef here.
NSBundle* bundle = [NSBundle mainBundle];
…
[bundle release];
You need to reread the memory management documentation again. You
didn't get the bundle through alloc, new, or copy, and there you
don't own it and mustn't release it.
--Kyle Sluder
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Re: Making an NSTableView Display Articles From An RSS Feed.
Saw this same question on stackoverflow.com, not sure if that's a coincidence. But yeah, you would have to set up a data source for your table view and then parse the XML (Look up NSXMLDocument and NSXMLParser). This might help: http://weblog.bignerdranch.com/?p=48 On 2009-08-23, at 9:04 AM, Joshua Garnham wrote: How would I make an NSTableView display an RSS Feed (just one)? I think it would have something to do with NSURL and Setting the Table Views Data Source. But how exactly would I do this? Cheers, Josh. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/pcwiz.support%40gmail.com This email sent to pcwiz.supp...@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: leak in a sound function
Now there was no need to create static either.
if (fileInfo)
delete fileInfo;
Just add before returning that function.
That is a bug in Mac files.
Best regards
Agha
On Aug 23, 2009, at 11:37 AM, Agha Khan wrote:
Thank you All.
I came from Windows and this is my first project with Objective-C.
I am looking Mac provided file SoundEngine.cpp about line 770
OSStatus LoadTrack(const char* inFilePath, Boolean inAddToQueue,
Boolean inLoadAtOnce)
I realized we are creating pointer to BG_FileInfo pointer and never
released when we again allocating same pointer. That is a leak. So I
changed from
BG_FileInfo *fileInfo = new BG_FileInfo;
to
static BG_FileInfo *fileInfo = NULL;
if (fileInfo != NULL)
{
delete fileInfo;
fileInfo = NULL;
}
fileInfo = new BG_FileInfo;
Now there is no leak. :-)
I also tried NSBundle* bundle = [[NSBundle mainBundle] retain];
but leak was still there.
All comment are appreciated.
Need more comments what I did is correct.
Best regards
Agha
On Aug 23, 2009, at 11:17 AM, Kyle Sluder wrote:
On Aug 23, 2009, at 9:53 AM, Agha Khan agha.k...@me.com wrote:
+ (void) PlaySound:(int) Index
Method names should begin with lowercase letters. Classes really
are the only things in ObjC that are typically capitalized.
Also you should be using the NSUInteger typedef here.
NSBundle* bundle = [NSBundle mainBundle];
…
[bundle release];
You need to reread the memory management documentation again. You
didn't get the bundle through alloc, new, or copy, and there you
don't own it and mustn't release it.
--Kyle Sluder
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Re: Running shell scripts as root.
On Aug 23, 2009, at 2:31 PM, PCWiz wrote: Basically I need to run the chown/chmod utilities and probably cp/mv/ mkdir as well using root privileges. What would be the best way to do this? http://developer.apple.com/referencelibrary/GettingStarted/GS_Security/ Pay particular attention to anything regarding Authorization Services. -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Making an NSTableView Display Articles From An RSS Feed.
On Aug 23, 2009, at 12:48 PM, PCWiz wrote: Saw this same question on stackoverflow.com, not sure if that's a coincidence. But yeah, you would have to set up a data source for your table view and then parse the XML (Look up NSXMLDocument and NSXMLParser). This might help: http://weblog.bignerdranch.com/?p=48 On 2009-08-23, at 9:04 AM, Joshua Garnham wrote: How would I make an NSTableView display an RSS Feed (just one)? I think it would have something to do with NSURL and Setting the Table Views Data Source. But how exactly would I do this? Cheers, Josh. For reading the RSS check out the PubSub framework: http://developer.apple.com/documentation/InternetWeb/Conceptual/PubSub/Introduction/Introduction.html --Nathan BOINCMenubar 2 http://brotherbard.com/boinc/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: leak in a sound function
On 2009-08-23, at 20:37, Agha Khan wrote: I also tried NSBundle* bundle = [[NSBundle mainBundle] retain]; Why are you trying to retain? The documentation says + (NSBundle *)mainBundle - its static and you didn't create (alloc, new) the *bundle instance, therefor you don't own it, and therefor should not release it either. That is a bug in Mac files. Don't just assume that there are alot of bugs in Mac, rather there is a bug in your code/architecture. If you really don't know what you are doing, please read the docs first - this might help you save alot of time when developing your app. Instead of the trial and error approach = $$$ Where did you find the Mac provided file SoundEngine.cpp? And how old is this file i.e. when was this code written? I searched my entire disk and didn't find this file, therefor it can't really be Mac provided... /MK ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Core Animation + Garbage Collection
Have you enabled wants layer for the view? Kevin -- Kevin Cathey On 22 Aug 2009, at 22:21, Evan M wrote: So, it isn't Garbage Collection + Core Animation that is breaking the transition, I just refactored my entire project to remove GC support (big pain) and the animation hasn't changed at all. Now I'm looking at my custom NSView that is being animated and I'm wondering now if that is the problem. Is there anything special I need to do in a custom NSView to enable Core Animation support? -- Evan On Aug 19, 2009, at 3:30 PM, Bill Bumgarner wrote: On Aug 19, 2009, at 10:54 AM, Evan Moseman wrote: I've been trying to get a fairly simple and well documented transition: CIPageCurlTransition to work in my app, but the results are awful. Non filter transitions like kCATransitionFade work fine, but when I try to use a CAFilter for the transition the best I get is dome chopped up image with the wrong geometry and it just looks completely broken. I've been trying to figure out what the cause is, and the only real difference between my app and a few example applications, as far as this code is concerned, is that mine has garbage collection enabled, not required though. I ran into this post with a quick google search: http://blog.fadingred.com/post/80877304/core-animation-and-garbage-collection Further searches in the Core Animation documentation haven't yet revealed a known incompatibility between Core Animation libraries and Garbage Collection. Am I missing something obvious or documented? It should work. File a bug via http://bugreport.apple.com and send me the bug # directly. thanks, b.bum ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cathey%40apple.com This email sent to cat...@apple.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Core Animation + Garbage Collection
On Aug 23, 2009, at 1:00 PM, Kevin Cathey cat...@apple.com wrote: Have you enabled wants layer for the view? And if you have, have you made sure to provide a custom layer *before* calling -setWantsLayer:? The default AppKit provided layer is Not Yours to touch. --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: Making an NSTableView Display Articles From An RSS Feed.
On 2009-08-23, at 9:04 AM, Joshua Garnham wrote: How would I make an NSTableView display an RSS Feed (just one)? I think it would have something to do with NSURL and Setting the Table Views Data Source. But how exactly would I do this? Cheers, Josh. Start here: http://developer.apple.com/documentation/InternetWeb/Conceptual/PubSub/Introduction/Introduction.html#//apple_ref/doc/uid/TP40004945-CH1-DontLinkElementID_24 Then continue here: http://developer.apple.com/documentation/Cocoa/Conceptual/TableView/TableView.html When you get stuck, ask specific questions, not how do I write this whole app. The former shows you're thinking and doing for yourself. The latter makes people want to ignore a lazy post. Good luck. -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Confusion over erratic behavior in Xcode debugging
This issue has been bothering me. I'm experience some weird behavior when debugging with Xcode with breakpoints. Basically, the highlighted current code line seems to jump around erratically. It's almost like it has to go through a declaration/initialization twice to actually register it. Secondly, when this kind of behavior appears, I get these messages when attempting to print items to the console (through right-click print description to console) Printing description of bytes: The program being debugged was signaled while in a function called from GDB. GDB has restored the context to what it was before the call. To change this behavior use set unwindonsignal off Evaluation of the expression containing the function (CFShow) will be abandoned. The program being debugged was signaled while in a function called from GDB. GDB has restored the context to what it was before the call. To change this behavior use set unwindonsignal off Evaluation of the expression containing the function (CFShow) will be abandoned. Printing description of bytes: A syntax error in expression, near `value)'. A syntax error in expression, near `value)'. Maybe I'm doing something wrong. Any ideas what causes this behavior? -Thanks, Chase ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Confusion over erratic behavior in Xcode debugging
On Aug 23, 2009, at 4:45 PM, Chase Meadors wrote: This issue has been bothering me. I'm experience some weird behavior when debugging with Xcode with breakpoints. This is not Cocoa-related. It belongs on the xcode-users list, not cocoa-dev. -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Running shell scripts as root.
On 2009 Aug 23, at 11:57, I. Savant wrote: On Aug 23, 2009, at 2:31 PM, PCWiz wrote: Basically I need to run the chown/chmod utilities and probably cp/ mv/mkdir as well using root privileges. What would be the best way to do this? http://developer.apple.com/referencelibrary/GettingStarted/GS_Security/ Pay particular attention to anything regarding Authorization Services. Yes, you'll need a privileged helper tool. We had a discussion of this over on apple-c...@lists.apple.com a couple months ago and I was convinced that it made more sense to temporarily chmod them and then cp/mv/mkdir/whatever. [1] Anyhow, I added two new tools, HelperToolTaskDoSetPermissions and HelperToolTaskDoCopyFiles, to my BetterAuthorizationSample wrapper. [2] Even if you can use my tool and framework it's still quite messy, though -- privileges have a high price. A better place to discuss this further would be apple-c...@lists.apple.com . Jerry 1. http://lists.apple.com/archives/Apple-cdsa/2009/May/msg2.html 2. http://sheepsystems.com/sourceCode/authTasksCocoa.html Note: The new tools, HelperToolTaskDoCopyFiles and HelperToolTaskDoCopyFiles, are not demonstrated in the demo app. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Running shell scripts as root.
On Aug 23, 2009, at 5:33 PM, Jerry Krinock wrote: Anyhow, I added two new tools, HelperToolTaskDoSetPermissions and HelperToolTaskDoCopyFiles, to my BetterAuthorizationSample wrapper. Awesome, Jerry, thanks for that! Looks to be quite useful. I admit I have limited experience with this, so I've dutifully bookmarked your examples for future reference. -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Solution: Dynamically creating an image with transparent portions.
About a month ago I asked a question here that had to do with dynamically creating -- at run time -- new instances of NSImage with portions that were partially or wholly transparent. Thanks to the help received, I solved my problem by another means, but I eventually did find out that there appears to be a documented way to do what I wanted, well hidden in a tech note. (Not so much well hidden as that I did not happen to use search terms that might have found it.) I thought I ought to mention it. The note in question is this one: http://developer.apple.com/releasenotes/Cocoa/AppKitOlderNotes.html Within it, scan for NSView Drawing Redirection API (Section added since WWDC). I haven't tried it yet, but it looks like exactly what I was asking for in the first place. -- Jay Reynolds Freeman - jay_reynolds_free...@mac.com http://web.mac.com/jay_reynolds_freeman (personal web site) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: User interface validation doesn't work, right?
On Aug 23, 2009, at 9:39 AM, Houdah - ML Pierre Bernard wrote: Just ran into the same problem and came up with HHValidatedButton: http://www.bernard-web.com/pierre/blog/index.php? id=6542976061063123843 I actually came up with the answer after this thread died (only waiting for you to bring it back to life!). It's way too complicated to spell it out here but, basically, - validateUserInterfaceItem: has replaced the old -validateMenuItem: method in Leopard and newer for menu items and it works the same way. But for user controls like buttons you have to declare your own protocol methods. It only takes half a dozen lines of code and it's real easy to do -- and it works perfectly. The only problem is that it isn't documented adequately, so you have to spend days find out how to do something that takes 20 seconds once you know how. Same old same old. -- Bill Cheeseman b...@cheeseman.name ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Core Animation + Garbage Collection
On 24/08/2009, at 6:24 AM, Kyle Sluder wrote: Have you enabled wants layer for the view? And if you have, have you made sure to provide a custom layer *before* calling -setWantsLayer:? The default AppKit provided layer is Not Yours to touch. Why's that? It seems to work fine in all my testing. -- Rob Keniger ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Sound files needed
I just need one more thing to finish my application: five .aiff sound files. Each of them needs to have three properties: (1) Be one second in duration. (2) Play a 3-pulse Morse code sequence (DAH-dit-DAH etc.). And here's the tricky bit: (3) Play at a frequency of 19,000 Hertz. I've managed to create files with properties (1) and (2), but I'm stuck at (3). I've downloaded the Audacity application, but the best I can get from it seems to be 12,000 Hertz. Other programmes I've tried (demo versions mostly) won't let me set an absolute frequency. Any suggestions? dkj P.S. Yes, I know most people won't be able to hear a sound at a frequency of 19KHz; but that's a feature, not a bug! ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
[OT] Re: Sound files needed
On Aug 23, 2009, at 7:53 PM, DKJ wrote: I've downloaded the Audacity application, but the best I can get from it seems to be 12,000 Hertz. Other programmes I've tried (demo versions mostly) won't let me set an absolute frequency. Your question has nothing at all to do with Cocoa development. This is the cocoa-dev list, not the how-do-I-use-any-software-at-all-as- long-as-I'm-using-it-to-create-my-application list. To find the latter, I suggest Google. -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Confusion about custom UITableViewCell
I'm trying to make a custom UITableViewCell, but the way I'm doing it, all the drawing of the table seems to be screwed up. The view seems to be working in some sense, because I can see the data, but only one row at the bottom can be seen and things are generally screwed up when scrolling. This is what I'm doing: 1) Create new Navigation based app. 2) Add a Table View Cell to the RootViewController.xib 3) Edit the TableViewCell in IB, add some Labels onto it. 4) Connect TableViewCell and Labels to outlets in RootViewController.h 5) modify tableView:cellForRowAtIndexPath: so that it sets data in the UILabels and returns the TableViewCell from the Nib outlet. Is there some reason this shouldn't work? __ Find local businesses and services in your area with Yahoo!7 Local. Get started: http://local.yahoo.com.au ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Syntax Coloring?
Hi Keita, Hello, I'm writing a code editor and so far, i've been using Flex for regex-matching the whole document every time the text is changed and coloring appropriately... How are you doing this? How did you incorporate Flex or regex-matching? I approached it using regex to parse the quoted and commented strings into single objects, then parse using regex for the language, then reinsert the quoted and commented strings. But this was using perl and scripting, whereas I now need to port to Cocoa. I managed to get regex working in Cocoa using RegexKiteLite, but now need to move across the rest of my method. I got this idea from some CocoaBuilders or CocoaDev forum/mailing list awhile ago Do you have a link to the article? but it's terribly inefficient and slow, especially with large documents. I would hope that there's come Cocoa class for parsing source text into tokens etc, but don't know of anything. Tom ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Core Animation + Garbage Collection
On Aug 23, 2009, at 4:34 PM, Rob Keniger r...@menumachine.com wrote: Why's that? It seems to work fine in all my testing. There are cases where it breaks. Providing your own layer is the defining difference between a layer- backed and a layer-hosting view. AppKit makes certain assumptions about the underlying layer in a layer-backed view. You want a layer-hosting view, play by the rules. It's just one line of code. --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: Bindings Reverting Properties
For the archives...
The cleanest way I've found to get around my problem is best illustrated
with some example code:
=
- (void)setHappy: (BOOL)newHappy
{
BOOL oldHappy = happy;
happy = newHappy;
if (![self save])
{ // Do the revert now
happy = oldHappy;
// Update the UI later
[self performSelector: @selector(updateUI)
withObject: nil
afterDelay: 0.0];
}
}
- (void)updateUI
{
[self willChangeValueForKey: @happy];
[self didChangeValueForKey: @happy];
}
=
In the above example, I do the actual revert in the current iteration of the
run loop, and save the updating of the UI for the next iteration. I also
thought about scheduling the entire revert task for the next iteration, but
found this wasn't as good an option. The reason it's not as good is because
before the revert happens, the preferences will temporarily reflect a state
that hasn't (and won't) be saved to disk. So if someone asks for the value
of happy during the _current_ iteration of the run loop, it will erroneously
return the temporary value before the revert happens. Therefore, it's a
better idea to simply do the revert now, and update the UI later.
Perhaps someone, somewhere will find that information useful.
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Re: Core Animation + Garbage Collection
Kevin, Yes, wantsLayer is enabled. -- Evan On Aug 23, 2009, at 4:00 PM, Kevin Cathey wrote: Have you enabled wants layer for the view? Kevin -- Kevin Cathey On 22 Aug 2009, at 22:21, Evan M wrote: So, it isn't Garbage Collection + Core Animation that is breaking the transition, I just refactored my entire project to remove GC support (big pain) and the animation hasn't changed at all. Now I'm looking at my custom NSView that is being animated and I'm wondering now if that is the problem. Is there anything special I need to do in a custom NSView to enable Core Animation support? -- Evan On Aug 19, 2009, at 3:30 PM, Bill Bumgarner wrote: On Aug 19, 2009, at 10:54 AM, Evan Moseman wrote: I've been trying to get a fairly simple and well documented transition: CIPageCurlTransition to work in my app, but the results are awful. Non filter transitions like kCATransitionFade work fine, but when I try to use a CAFilter for the transition the best I get is dome chopped up image with the wrong geometry and it just looks completely broken. I've been trying to figure out what the cause is, and the only real difference between my app and a few example applications, as far as this code is concerned, is that mine has garbage collection enabled, not required though. I ran into this post with a quick google search: http://blog.fadingred.com/post/80877304/core-animation-and-garbage-collection Further searches in the Core Animation documentation haven't yet revealed a known incompatibility between Core Animation libraries and Garbage Collection. Am I missing something obvious or documented? It should work. File a bug via http://bugreport.apple.com and send me the bug # directly. thanks, b.bum ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cathey%40apple.com This email sent to cat...@apple.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Core Animation + Garbage Collection
Kyle, I don't have a custom layer, I'm animating the transition between two NSViews. -- Evan On Aug 23, 2009, at 4:24 PM, Kyle Sluder wrote: On Aug 23, 2009, at 1:00 PM, Kevin Cathey cat...@apple.com wrote: Have you enabled wants layer for the view? And if you have, have you made sure to provide a custom layer *before* calling -setWantsLayer:? The default AppKit provided layer is Not Yours to touch. --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
I am not sure which message I have to trust?
Hi: When I am using emulator there is no leak, but when I run on device, it looks like there is a leak. I am unable to figure out why it so nor I was able to find the source. Thanks in advance. Agha ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
readInBackgroundAndNotify not working?
Hi,
I'm using this code to get a notification when a file has been updated:
- (void)startReading
{
NSString *logPath = [NSHomeDirectory()
stringByAppendingPathComponent:@Library/Logs/MyTestApp.log];
NSFileHandle *fh = [NSFileHandle fileHandleForReadingAtPath:logPath];
NSNotificationCenter *notificationCenter = [NSNotificationCenter
defaultCenter];
[notificationCenter addObserver:self
selector:@selector(getData:)
name:@NSFileHandleReadCompletionNotification
object:fh];
[fh readInBackgroundAndNotify];
}
- (void) getData: (NSNotification *)aNotification
{
NSLog(@hai);
}
I know for sure that the file is being updated (MyTestApp.log),
however the selector method (getData:) is never being called. Is there
something I'm doing wrong?
Thanks
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Re: readInBackgroundAndNotify not working?
On Aug 23, 2009, at 7:42 PM, PCWiz pcwiz.supp...@gmail.com wrote: name:@NSFileHandleReadCompletionNotification NSFileHandleReadCompletionNotification is the name of a constant, not necessarily its value. In general, there are very few cases where notification names, dictionary keys, and other known constants don't have symbolic names. In that case the documentation will list them in @ form; otherwise the names listed are the actual const variables themselves. No idea if this is your issue. Often the constant values are the same as their names, and code like that which you've posted just seems to work fine. --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: readInBackgroundAndNotify not working?
On Aug 23, 2009, at 7:42 PM, PCWiz pcwiz.supp...@gmail.com wrote: NSString *logPath = [NSHomeDirectory() stringByAppendingPathComponent:@Library/Logs/MyTestApp.log]; Also don't do this. Use NSSearchPathForDirectoriesInDomains. Hardcoding paths is bad form. --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: DOMNode problems getting info out...
ok, this seems mighty round about, but this works let me know if you think there is a simpler way... i found atleast two sets of documentation on this from developer/Apple on DomNodes or DOMObjects neither had the same info... but combining the two, i think i figured it out... DOMDocument *myDOMDocument = [[myWebView mainFrame] DOMDocument]; DOMNodeList *allParas = [myDOMDocument getElementsByTagName:@p]; DOMNode *node = [allParas item:0]; DOMNodeList *nodeList = [node childNodes]; DOMHTMLLinkElement* link = (DOMHTMLLinkElement*)[nodeList item:1]; NSString* href = [link href]; NSString *top = [node textContent]; now href conatins a string with the link in it, and top contains the rest of the text within the paragraph... this is the paragraph example again: p Aug 19 - a href=http://whatever/sys/1331140637.html;Two 1GB Apple matched pair RAM from a MacBook - $30 -/afont size=-1 (Louisville )/font/p Jon. On Aug 23, 2009, at 8:06 AM, jon wrote: I have found that there is extremely limited documentation dealing with DOMNodeLists and DOMNode... for instance i found by pure accident that textContent works on a node, and found no documentation on it... and lots references to getAttribute or getElementID but can not get them to work... so here is what i'm trying to do with code and maybe someone has figured this out... thanks in advance.. here is some data in some HTML that I would like to parse, i've found how to get the text out, but i can't get this URL out p Aug 19 - a href=http://whatever/sys/1331140637.html;Two 1GB Apple matched pair RAM from a MacBook - $30 -/afont size=-1 (Louisville )/font/p here is the code i'm using to parse it most of it works, including the textContent, last two lines don't work...trying to get this http://whatever/sys/1331140637.html; into a NSString, or NSURL is failing me... DOMDocument *myDOMDocument = [[myWebView mainFrame] DOMDocument]; DOMNodeList *allParas = [myDOMDocument getElementsByTagName:@p]; DOMNode *node = [allParas item:0]; NSString *top = [node textContent]; NSString *top2 = [node getAttribute:@href]; // this is way off, just trying to find methods, but i expected getAttribute to atleast be acknowledged as a method NSString *top4 = [node getElementById:@href]; // this is way off, but i expected getElementById to atleast be acknowledged as a method any help would be great... thanks, Jon. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
Drawing over a transparent background
Hi, I asked about this on quartz-dev but go no reply after a few days so I'm asking here. My borderless window has a semi-transparent background. When the drawing in a subview changes, the background retains a ghost of the original drawing in the subview. I don't want that ghost image! The app is a resizeable analog clock. (Yes, I'm a dilettante recreational coder.) I've tried various -display methods, but none of them, so far, have fixed the problem. So -setNeedsDisplay:, -setNeedsDisplayInRect:, - displayRect, -displayRectIgnoringOpacity and others don't affect the ghosting problem. Here's an image of what I'm seeing: http://members.ozemail.com.au/~ronfleckner/DrawingWithTransProb.png If the background is a solid colour, the drawing looks fine. It only appears when the background has opacity 1.0 The opacity and colours of the window are set in the interface by the user. Thanks for any help Ron ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Using Core Data NSManagedObject subclasses outside of a managed object context
Hey all, I have objects that I use with core data that were automatically generated for me by xcode and represent entities in my data store. They all subclass NSManagedObject, and do not have instance variables, but instead use the @dynamic setting for their properties, pretty standard. My understanding is that this allows the NSManagedObject superclass to generate the getters/setters at runtime and store data in it's own, more efficient, Core Data friendly way. What this means for me, however, is that I can't just call [[Entity alloc] init] and then get/set Entity's properties, because it won't properly initialize unless it is given a managed object context. I need to be able to use my objects in places that they won't be persisted, as just transient objects, but this prevents that. The only way I know to initialize them is by calling [NSEntityDescription insertNewObjectForEntityForName:name inManagedObjectContext:managedObjectContext] . But, when creating objects this way, they will be persisted on the next save call. Does anyone know of a way to modify the objects so that I can use them wherever I want without having to insert them into a managed object context? I've read different places that you shouldn't do what I'm trying to do, but if Core Data doesn't allow you to use its objects without persisting them, then that would be a major shortcoming for me. Are there architectural changes I can make that would overcome this? Just so you know, I'm making a feed reader that has the option to save selected stories from the feed for later, offline, browsing. I want to be able to download the feed XML and create 'story' objects from that without having to persist every story I fetch. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
Simple array controller master-detail binding problem
Well, simple for you guys I hope!
I apologize in advance for this monstrosity of a question, but I've
had a tough time narrowing this thing down so I'm laying out all the
details to keep the thread short in hopes that someone will spot an
obvious mistake right away. Any help greatly appreciated!
I've been trying to build a simplified implementation of the
combatants example in the Cocoa Bindings Programming Topics doc to
prove that I really understand Array Controllers and Binding.
Apparently, I do not!
My goal is to get two array controllers (master/detail) working
together in a simple non-doc cocoa app.
How hard could that be? Versions I am working with [10.5.8 / Xcode
3.1.3]
I have the master ac bound to its model class (Combatant) creating and
deleting entries no problem. All the trouble started when I created
the detail ac for (Weapon) and tried to bind it to the master ac. The
app starts up without any errors or warnings at first.
I create two combatants, Vlad and Atilla in the master table, no
problem. Now I cursor up and select Vlad in the first row and BAM
stack trace. What! Unbind the detail ac in the XIB and the master
table works perfectly adding/deleting/selecting/name changing. To
further simplify, I have not yet attached a gui element to the detail
ac.
I can't make a lot of sense out of the stack trace, but it does end
with:
0 objc_msgSend
1 objc_getProperty
2 -[Combatant weapons]
3 -[NSObject(NSKeyValueCoding) valueForKey:]
4- [NSObject(NSKeyValueCoding) valueForKeyPath:]
leading me to wonder if I did something wrong with my accessors.
Please pardon the newbie confusion!
Data elements and settings for the ac's follow:
Classes:
App Controller
NSMutableArray *combatants
Combatant
NSString *name
NSMutableArray *weapons
Weapon
NSString *name
(code further below if you want to see it all)
Array Controllers:
Master Combatants
Attributes panel
Mode:Class, Class Name: Combatant, Key:name, weapons
Bindings panel
Content Array
Bind to: App Controller, Controller Key empty, Model Key Path:
combatants
(and I do have an App Controller object in the MainMenu.xib with the
AppController name set in the identity panel)
Detail Weapons
Attributes panel
Mode:Class, Class Name: Weapon, Key:name
Bindings Panel
Content Array
Bind to: Master Combatants, Controller Key: selection, Model Key
Path: weapons
The intention is to bind a Popup or even just a Table with a name
column to the Detail Weapons ac once I eliminate the runtime error.
Honestly, I wouldn't be posting all this if I hadn't been banging my
head against the wall, googling, reading tutorials, trying dozens of
variations before getting so desperate I actually ask for help! I'm
going to feel so stupid when you point out what I did wrong.
- Leon
THE CODE
// AppController
@interface AppController : NSObject {
NSMutableArray *combatants;
}
@property (readwrite, retain) NSMutableArray *combatants;
@end
@implementation AppController
@synthesize combatants;
- (id)init{
[super init];
combatants = [[NSMutableArray alloc] init];
return self;
}
- (void) dealloc{
[combatants release];
[super dealloc];
}
@end
// Combatant
@interface Combatant : NSObject {
NSString *name;
NSMutableArray *weapons;
}
@property (readwrite, copy) NSString *name;
@property (readwrite, retain) NSMutableArray *weapons;
@end
@implementation Combatant
@synthesize name;
@synthesize weapons;
- (id)init{
[super init];
weapons = [NSMutableArray arrayWithObjects:@Dagger, @Sword,
@Pike, nil];
return self;
}
@end
// Weapon
@interface Weapon : NSObject {
NSString *name;
}
@property (readwrite, copy) NSString *name;
@end
@implementation Weapon
@synthesize name;
@end
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Re: readInBackgroundAndNotify not working?
On Aug 23, 2009, at 8:01 PM, Kyle Sluder wrote:
On Aug 23, 2009, at 7:42 PM, PCWiz pcwiz.supp...@gmail.com wrote:
name:@NSFileHandleReadCompletionNotification
NSFileHandleReadCompletionNotification is the name of a constant,
not necessarily its value.
Right, and that was my first thought, too! I've never used
NSFileHandle for this purpose, either, so wrote a quick test app to
see what would happen. It turns out that the value is the same as the
constant in this case, though, and my code below seems to work if I do
date /tmp/testfile.txt
in Terminal.
However, if I open the file with vi and edit/save, the notifications
stop coming in. My guess is that vi does an atomic write, so watching
the file descriptor breaks when a new file is written instead of just
appending to the old one. I've run into problems like that
previously, and IIRC you can catch that case with kqueue. Maybe
CFFileDescriptor would work also, but I haven't used it yet. You may
find that none of the above will work on certain filesystems (e.g.,
NFS), in which case you probably have to poll the filesystem.
#import Foundation/Foundation.h
@interface Reader : NSObject
@end
@implementation Reader
- (void)dataAvailable:(NSNotification *)aNote
{
NSLog(@%@, aNote);
[[aNote object] readInBackgroundAndNotify];
}
@end
int main (int argc, char const *argv[])
{
NSAutoreleasePool *pool = [NSAutoreleasePool new];
system(/usr/bin/touch /tmp/testfile.txt);
Reader *reader = [Reader new];
NSFileHandle *fh = [NSFileHandle fileHandleForReadingAtPath:@/
tmp/testfile.txt];
[[NSNotificationCenter defaultCenter] addObserver:reader
selector:@selector(dataAvailable:)
name:NSFileHandleReadCompletionNotification object:fh];
[fh readInBackgroundAndNotify];
[[NSRunLoop currentRunLoop] addPort:[NSPort port]
forMode:NSDefaultRunLoopMode];
[[NSRunLoop currentRunLoop] run];
[pool drain];
return 0;
}
smime.p7s
Description: S/MIME cryptographic signature
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DOMNode problems getting info out...
I have found that there is extremely limited documentation dealing with DOMNodeLists and DOMNode... for instance i found by pure accident that textContent works on a node, and found no documentation on it... and lots references to getAttribute or getElementID but can not get them to work... so here is what i'm trying to do with code and maybe someone has figured this out... thanks in advance.. here is some data in some HTML that I would like to parse, i've found how to get the text out, but i can't get this URL out p Aug 19 - a href=http://whatever/sys/1331140637.html;Two 1GB Apple matched pair RAM from a MacBook - $30 -/afont size=-1 (Louisville )/font/p here is the code i'm using to parse it most of it works, including the textContent, last two lines don't work...trying to get this http://whatever/sys/1331140637.html; into a NSString, or NSURL is failing me... DOMDocument *myDOMDocument = [[myWebView mainFrame] DOMDocument]; DOMNodeList *allParas = [myDOMDocument getElementsByTagName:@p]; DOMNode *node = [allParas item:0]; NSString *top = [node textContent]; NSString *top2 = [node getAttribute:@href]; // this is way off, just trying to find methods, but i expected getAttribute to atleast be acknowledged as a method NSString *top4 = [node getElementById:@href]; // this is way off, but i expected getElementById to atleast be acknowledged as a method any help would be great... thanks, Jon. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Syntax Coloring?
On 24/08/2009, at 10:32 AM, BareFeet wrote: I approached it using regex to parse the quoted and commented strings into single objects, then parse using regex for the language, then reinsert the quoted and commented strings. But this was using perl and scripting, whereas I now need to port to Cocoa. I implemented basic syntax coloring for HTML documents without too much difficulty. You need to set an object as the delegate of your NSTextView's NSTextStorage object. In this delegate, implement - textStorageDidProcessEditing: which is called when the text changes, and do your syntax coloring in that method. I use NSScanner to do the tokenizing. For large documents you'd probably want to keep track of which parts of the text change and only re-color the modified sections. -- Rob Keniger ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Drawing over a transparent background
On 24/08/2009, at 9:33 AM, Ron Fleckner wrote: My borderless window has a semi-transparent background. When the drawing in a subview changes, the background retains a ghost of the original drawing in the subview. I don't want that ghost image! What are you returning for the -isOpaque method of your custom view? If your view has any parts that have an alpha less than 1.0 then you must return NO from this method. -- Rob Keniger ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Simple array controller master-detail binding problem
On Aug 23, 2009, at 19:58, Leon Starr wrote: I can't make a lot of sense out of the stack trace, but it does end with: 0 objc_msgSend 1 objc_getProperty 2 -[Combatant weapons] 3 -[NSObject(NSKeyValueCoding) valueForKey:] 4- [NSObject(NSKeyValueCoding) valueForKeyPath:] You left out the vital piece of information: the error message that was logged when this occurred. Look in the debugger console window. (However, if this is an exception, sometimes the exception is thrown before the error is logged. You may have to continue until the error message appears.) According to your stack trace, something is attempting to retrieve the weapons property of a Combatant, which seems perfectly reasonable, and all your bindings appear reasonable at first glance. The most likely cause of your problem is a memory management error in your code -- the Combatant object with name Vlad has likely been over- released. Chances are, when you see the error message, it will tell you that weapons was sent to an object of the wrong class, and that would pretty much confirm it. (That is, the memory that was previously a Combatant object has been reused for a different class of object.) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Using Core Data NSManagedObject subclasses outside of a managed object context
On 2009 Aug 23, at 17:32, Dieterich Lawson wrote: Does anyone know of a way to modify the objects so that I can use them wherever I want without having to insert them into a managed object context? No, you can't to that. But you're asking the wrong question. The problem is not the managed objects, it's the managed object context that you're inserting them into. What you apparently haven't realized yet is that you can create your own managed object contexts. Typical Core Data applications have several of them. Create a managed object context with an in-memory (non-persistent) store, and insert your transient objects into it. All this is explained in the Core Data Programming Guide. http://developer.apple.com/documentation/Cocoa/Conceptual/CoreData/cdProgrammingGuide.html ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Drawing over a transparent background
On Aug 23, 2009, at 4:33 PM, Ron Fleckner ronfleck...@ozemail.com.au wrote: My borderless window has a semi-transparent background. When the drawing in a subview changes, the background retains a ghost of the original drawing in the subview. I don't want that ghost image! Have you remembered to override -isOpaque to return NO? --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: Using Core Data NSManagedObject subclasses outside of a managed object context
On Aug 23, 2009, at 17:32, Dieterich Lawson wrote: I have objects that I use with core data that were automatically generated for me by xcode and represent entities in my data store. They all subclass NSManagedObject, and do not have instance variables, but instead use the @dynamic setting for their properties, pretty standard. My understanding is that this allows the NSManagedObject superclass to generate the getters/setters at runtime and store data in it's own, more efficient, Core Data friendly way. Actually, although the internally-generated accessors are more efficient than the ones you could write, the data is stored in the same way. What this means for me, however, is that I can't just call [[Entity alloc] init] and then get/set Entity's properties, because it won't properly initialize unless it is given a managed object context. I need to be able to use my objects in places that they won't be persisted, as just transient objects, but this prevents that. The only way I know to initialize them is by calling [NSEntityDescription insertNewObjectForEntityForName:name inManagedObjectContext:managedObjectContext] . But, when creating objects this way, they will be persisted on the next save call. If all such objects are transient (not to be saved), then use a transient property. If only some of the objects are transient, create them in the managed context using insertNewObjectForEntityForName:inManagedObjectContext:, then immediately delete them. The documentation perhaps doesn't spell this out, but the inserting and deleting have reference to the persistent store, not the managed object context. That is, deleting a managed object doesn't cause the in-memory object to be deallocated, it causes it to be removed from the store at the next save. (Or, in this case, not ever to be saved.) Deleted objects survive as long as they are owned by something. Since managed object contexts by default do not retain managed objects (except inserted or updated ones), that means the deleted objects will survive as long as your code maintains ownership (i.e. retains them). Just so you know, I'm making a feed reader that has the option to save selected stories from the feed for later, offline, browsing. I want to be able to download the feed XML and create 'story' objects from that without having to persist every story I fetch. Personally, I'd use a transient property to hold *all* the downloaded story objects, plus a non-transient property to hold the ones that need to be saved. Obviously you'd need a feed entity (or something along that line) for these to be properties of. HTH ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
authorization services
hello, what i need for my project is a simple authorization from time to time if for example a file is being moved and i don't have access. i'm just starting to learn about authorization services and maybe this is what i need to do although it looks a bit complex for my needs. what i have found in the archives and what actually works for me is using NSApplescript with a shell script and administrator privileges flag and it prompts for a password when needed. the only issue is it doesn't remember the time stamp and will ask for a password multiple times within 5 minutes. if only i can control that time stamp or if i can use NSTask it could work too, but i'm not sure there's a way to get the typical authentication window by using NSTask. i definitely don't need to do something like run my project as root or anything like that. hope this makes sense and any pointers are much appreciated. thank you for your time, rick ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
