Re: [SOLVED] Unresponsive CFMessagePort
Le 7 janv. 2011 à 06:37, Jerry Krinock a écrit : On 2011 Jan 06, at 17:33, Dave Keck wrote: Oh, `sudo launchctl bstree` might also be useful. Thank you, Dave. It was useful. It told me that my server port was active (A). This confirms what the Client tells me, that the port is found, but times out when connecting to it. Odd, though, that, if I sent messages repeatedly, the Client would get a couple seconds of kCFMessagePortReceiveTimeout errors and then after that, kCFMessagePortSendTimeout errors. Thus knowing what to look for, I found the problem, which is that I was using the same port name for two different transient tasks, but the port for the second task was being created before the port for the first task was invalidated and released. This was because I was invalidating and releasing the port in the server's -dealloc method, which was running lazily when an autorelease pool was released. Just for the record, the trick is that if you try to create a port while an older port with the same name is invalidated but not yet deallocated, an exception is raised and logged in the console. However if the older port is still active, and then later invalidated and deallocated, you get this silent failure, a nonresponsive port. It is an implementation detail, but it appears that when you try to create a CFMachPort instance with a specified port name, the create function will check if an existing CFMachPort instance already exists for the specified mach_port, and return it if it exists. That's why you should let the system choose the port name, and not try to force it. -- 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: [SOLVED] Unresponsive CFMessagePort
Le 7 janv. 2011 à 10:22, Jean-Daniel Dupas a écrit : Le 7 janv. 2011 à 06:37, Jerry Krinock a écrit : On 2011 Jan 06, at 17:33, Dave Keck wrote: Oh, `sudo launchctl bstree` might also be useful. Thank you, Dave. It was useful. It told me that my server port was active (A). This confirms what the Client tells me, that the port is found, but times out when connecting to it. Odd, though, that, if I sent messages repeatedly, the Client would get a couple seconds of kCFMessagePortReceiveTimeout errors and then after that, kCFMessagePortSendTimeout errors. Thus knowing what to look for, I found the problem, which is that I was using the same port name for two different transient tasks, but the port for the second task was being created before the port for the first task was invalidated and released. This was because I was invalidating and releasing the port in the server's -dealloc method, which was running lazily when an autorelease pool was released. Just for the record, the trick is that if you try to create a port while an older port with the same name is invalidated but not yet deallocated, an exception is raised and logged in the console. However if the older port is still active, and then later invalidated and deallocated, you get this silent failure, a nonresponsive port. It is an implementation detail, but it appears that when you try to create a CFMachPort instance with a specified port name, the create function will check if an existing CFMachPort instance already exists for the specified mach_port, and return it if it exists. Correction. This is not an implementation detail, it is part of the API. (See CFMachPortCreateWithPort() discussion in the CFMachPort API reference). That's why you should let the system choose the port name, and not try to force it. -- 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: LOCATING MEDIA FILES IN MACINTOSH
On 6 Jan 2011, at 20:54, Abhinav Tyagi wrote: 1) I need an efficient approach to solve this problem using Cocoa or C++. (very Important) 2) How will check a file if its a valid media file or data file. Like we can have .dat files that are video files but data files can also have .dat extension. not much significant. Is there api that can tell whether a file is media file or not? (not s important). Why not use NSMetadataQuery to get Spotlight to search for you? If you search for Technical Note TN2192 in the documentation, you'll find some sample code. The Spotlight Overview and Spotlight Query Programming Guide look useful too. 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
Change the NSPreferencePane window size programmatically
Hello is it possible to set up the System Preferences height programmatically? I have 3 possible NSViews of different height (but the same width), which are displayed depending on what current settings does the user have. I am aware that System Preferences automatically changes the size of its window when it activates (loads) a Preference Pane, depending on that Pane's window height which is loaded from nib. But is there a way to change that height after the panel has been activated? I was thinking that my pane is operating in the address space of System Preferences, which means i can send messages to objects of this application. Can i somehow retrieve the object of main window and send it something like -setFrame ? Thanks! ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Change the NSPreferencePane window size programmatically
On Fri, Jan 7, 2011 at 6:09 AM, eveningnick eveningnick eveningn...@gmail.com wrote: I was thinking that my pane is operating in the address space of System Preferences, which means i can send messages to objects of this application. Can i somehow retrieve the object of main window and send it something like -setFrame ? Don't ever do that. There's no guarantee of this. Your preference pane can be loaded by any application, and there's nothing keeping a future version of System Preferences from loading your pane in a sandbox. Objects outside your own preference pane are 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: Stupid png icons
On Jan 6, 2011, at 5:38 PM, BareFeetWare wrote: On 07/01/2011, at 3:04 AM, Matt Neuburg wrote: GraphicConverter doesn't really have the cojones to do what you need done. You want something that can use e.g. the greyness of each pixel in the original image to determine the greyness of each pixel in the alpha mask. Photoshop or GIMP will do this fairly handily. m. Thanks for the info. Is there no dedicated app suitable for producing PNG images with grey level transparency/alpha, at the various scales needed for iOS apps (as app icons in-app icons)? Does everyone just resort to GIMP and Photoshop, which seems overkill and I'm guessing without templates for icon production? You should try Opacity. http://likethought.com/opacity/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: NSDictionary key types
If you are insufficiently confused, I thought I would add some additional confusion. 1. Don't worry overmuch about hash values. Particularly, never succumb to the temptation to store them persistently. The -hash algorithm for a particular class may vary with OS version. It certainly has before. It certainly varies from class to class. 2. Do not expect items like NSString and NSNumber to return the same hash values for humanly-similar entities like [NSNumber numberWithNSInteger: 12345] and [NSString stringWithString: @12345]. 3. Do not expect collection hashes to take into account the entire contents of the collection. -isEqual does, however. 4. It is entirely feasible to use a non-string object as a dictionary key, so long as it obeys the general requirements for dictionary keys. You can use a NSNumber as a dictionary key, a NSDate as a dictionary key, a NSDictionary as a dictionary key, any immutable object that implements -hash and -copy, pretty much. Including your own. A problem with using collections as dictionary keys is that even though the collection may be immutable, there is no guarantee that the objects in the collection are. 5. Good practice would be to try to stick to using NSStrings as dictionary keys. This moves further towards compliance with property lists, and it is very nice to be able to read/write an arbitrary dictionary as a property list. Also makes debugging easier. 6. That dictionary keys are immutable leads to some nice efficiencies -- if you define a key as a NSString literal: #define MYKEY @My Key; (or) NSString * myKey = @My Key; -- then every time you use MYKEY or myKey in a dictionary (or anywhere), the dictionary key will be that specific global instance of that NSString -- a singleton. You can create 1000 NSDictionaries containing a key My Key, but there will be only exactly one in-memory instance of that key. This means that -isEqual on that key will always short-circuit to an address comparison, which is about as efficient as you can get. Speed and space optimization at a single stroke. Immutability is a lovely attribute. Of course, once you start saving and reloading NSDictionaries, you likely start losing this niftyness, unless Apple has implemented undocumented optimizations like coalescing new instances of NSStrings into a global string cache. They might have done that, Apple likes that sort of thing, and it wouldn't be hard to implement. It would be even more compelling on iOS, where storage, RAM and computing power are comparatively scarce. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: NSDictionary key types
The underlying issue I was having was how to know when different objects used as keys might be reasonably expected to match, especially if they weren't generated the same way (as with [NSNumber stringValue] and [NSString ...]). I guess the long answer is its complicated, and the short answer is just use NSStrings. Thanks to all, I think I'm getting the hang of it. Kirk Kerekes wrote: If you are insufficiently confused, I thought I would add some additional confusion. 1. Don't worry overmuch about hash values. Particularly, never succumb to the temptation to store them persistently. The -hash algorithm for a particular class may vary with OS version. It certainly has before. It certainly varies from class to class. 2. Do not expect items like NSString and NSNumber to return the same hash values for humanly-similar entities like [NSNumber numberWithNSInteger: 12345] and [NSString stringWithString: @12345]. 3. Do not expect collection hashes to take into account the entire contents of the collection. -isEqual does, however. 4. It is entirely feasible to use a non-string object as a dictionary key, so long as it obeys the general requirements for dictionary keys. You can use a NSNumber as a dictionary key, a NSDate as a dictionary key, a NSDictionary as a dictionary key, any immutable object that implements -hash and -copy, pretty much. Including your own. A problem with using collections as dictionary keys is that even though the collection may be immutable, there is no guarantee that the objects in the collection are. 5. Good practice would be to try to stick to using NSStrings as dictionary keys. This moves further towards compliance with property lists, and it is very nice to be able to read/write an arbitrary dictionary as a property list. Also makes debugging easier. 6. That dictionary keys are immutable leads to some nice efficiencies -- if you define a key as a NSString literal: #define MYKEY @My Key; (or) NSString * myKey = @My Key; -- then every time you use MYKEY or myKey in a dictionary (or anywhere), the dictionary key will be that specific global instance of that NSString -- a singleton. You can create 1000 NSDictionaries containing a key My Key, but there will be only exactly one in-memory instance of that key. This means that -isEqual on that key will always short-circuit to an address comparison, which is about as efficient as you can get. Speed and space optimization at a single stroke. Immutability is a lovely attribute. Of course, once you start saving and reloading NSDictionaries, you likely start losing this niftyness, unless Apple has implemented undocumented optimizations like coalescing new instances of NSStrings into a global string cache. They might have done that, Apple likes that sort of thing, and it wouldn't be hard to implement. It would be even more compelling on iOS, where storage, RAM and computing power are comparatively scarce. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: LOCATING MEDIA FILES IN MACINTOSH
I may have missed it, but I don't believe anyone has mentioned my first choice in this sort of task: -- the programmatic interface to Spotlight: http://goo.gl/JGgVQ Introduction to Spotlight Query Programming Guide combined with UTIs: http://goo.gl/9AxdT Introduction to Uniform Type Identifiers Overview Because SpotLight uses a prebuilt index, it will trounce pretty much any other search technique. UTIs let you specify _classes_ of filetypes (like movie or audio) rather than bogging down in endless detail that needs perpetual updating. No search scheme can guarantee 100% perfection, but using system resources instead of rolling your own lets you effortlessly benefit from Apple's continued stepwise refinement. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Change the NSPreferencePane window size programmatically
Kyle, thanks for the warning, i understand the problems it may cause. but what if i was doing that, how should have i sent a message to an object of the host application? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Change the NSPreferencePane window size programmatically
On Fri, Jan 7, 2011 at 10:42 AM, eveningnick eveningnick eveningn...@gmail.com wrote: Kyle, thanks for the warning, i understand the problems it may cause. but what if i was doing that, how should have i sent a message to an object of the host application? Quite simple: you don't. Ever. If your host object doesn't explicitly give you an object you're allowed to message, you don't message any of its objects. --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: Stupid png icons
On Jan 6, 2011, at 11:38 PM, BareFeetWare wrote: Is there no dedicated app suitable for producing PNG images with grey level transparency/alpha, at the various scales needed for iOS apps (as app icons in-app icons)? Does everyone just resort to GIMP and Photoshop, which seems overkill and I'm guessing without templates for icon production? Thanks, Tom -- Comparison of SQLite GUI tools: http://www.barefeetware.com/sqlite/compare/?ml These apps (found in the just-opened Mac App Store) aren't exactly what you're looking for, but they do some of the work involved. Reduction http://itunes.apple.com/us/app/reducticon/id412831576 Iconizer http://itunes.apple.com/us/app/iconizer/id412346451 StoreSizer http://itunes.apple.com/us/app/storesizer/id408263303 AppControls http://itunes.apple.com/us/app/appcontrols/id402508203 WT___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: NSDictionary key types
On Jan 7, 2011, at 10:36 AM, Jon Sigman wrote: The underlying issue I was having was how to know when different objects used as keys might be reasonably expected to match, especially if they weren't generated the same way (as with [NSNumber stringValue] and [NSString ...]). I guess the long answer is its complicated, and the short answer is just use NSStrings. Thanks to all, I think I'm getting the hang of it. The long and short answers are both they won't. The non-trivial isEqual methods check the object's class; an NSString can be equal to an NSMutableString if their contents match, but never an NSNumber. Hash is a secondary check.___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: NSDictionary key types
Jon Sigman wrote: The underlying issue I was having was how to know when different objects used as keys might be reasonably expected to match, especially if they weren't generated the same way (as with [NSNumber stringValue] and [NSString ...]). That's easy: they match when isEqual: returns true. See the NSDictionary class reference: http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/ Foundation/Classes/NSDictionary_Class/Reference/Reference.html Find isEqual on the page: ... no two keys in a single dictionary are equal (as determined by isEqual:). This subtly suggests that key equality is synonymous with isEqual:. There is also a logical relationship between hash and isEqual, which must be maintained. Objects that are equal must also have equal hashes. Or: equality presupposes hash-identicality. -- GG ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSDocument updateChangeCount when using Bindings
Thank you!
As always I had paddled my way out into deep water and missed something
important.
Key-Valued Coding Programming Guide: Ensuring KVC Compliance
Ensuring KVC Compliance, Indexed To-Many Relationship Compliance.
Cheers
Kevin
On 7/01/2011, at 7:39 PM, Quincey Morris wrote:
On Jan 6, 2011, at 18:01, Kevin Bracey wrote:
MyDocument has a
iVar = NSMutableArray *allScenes;
@property( retain ) NSMutableArray *allScenes;
@synthesize allScenes;
In my nib I have a ArrayController bound to allScenes and it is hooked up to
a Table and and selected Fields, it is adding and editing my Scene Objects
great.
I have these Saving and Loading from a Package using NSKeyArchiver, working
great.
How do I get the [MyDocument updateChangeCount:NSChangeDone]; to be called
when I add or delete a allScenes object or edit one of there properties?
You're kinda Doing It Wrong™ and your problem with updating the change count
is something of a side effect.
It's almost certainly wrong to expose a *mutable* array ivar as a public
*mutable* array property, especially when the the property is synthesized. By
doing this, you've allowed clients of your class to modify the property
non-KVO-compliantly. (For example, '[document.allScenes addObject:...]' is
allowed by your interface but is not compliant.) Currently it works great,
I'm guessing, because currently the *only* way the array gets changed is via
the array controller, and the array controller brute-force-ensures KVO
compliance on its own accesses. (For example, it adds to the array with
something like '[[document mutableArrayValueForKey: @allScenes]
addObject:...]', which is compliant.) If you later add other ways of changing
the array, you're leaving yourself open to a compliance problem, and it's
likely to be an extremely hard bug to track down.
The easiest way to fix this is:
1. Declare the property as '@property (retain) NSArray *allScenes;'.
Counter-intuitively, this won't break your array-controller-initiated
updates, since the array controller doesn't know the property type anyway. If
you read the comments for 'mutableArrayValueForKey:' in NSKeyValueCoding.h
carefully, you'll see that without further intervention KVC will go ahead and
update the mutable array anyway (case #3). But that's not what you really
want, so also ...
2. Define mutable array accessors in your document subclass. Something like:
- (void) insertObject: (id) object inAllScenesAtIndex: (NSUInteger)
index {
[allScenes insertObject: object atIndex: index];
}
and a similar one for removing objects. (Such methods are inherently KVO
compliant.) As a result, every object insertion and removal will be done via
your custom accessors, and -- magically -- you will now have convenient
places to update the document change count.
3. If code needs to update the array property other than via KVC, you can
expose your custom accessors as public methods. As I said, they're inherently
KVO compliant, so this solves the original problem in your implementation.
Or, clients of the class can use 'mutableArrayValueForKey:' directly. Either
way, they'll be forced to do it right, and prevented from doing it wrong.
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Re: Thumbs Lists
Thanks for the tips guys! so... I have a JSON file. I read it and put in array. I want to get some images and do a thumb list, like the covers in iBook. I see the documentation and I dont found nothing for help me there I think for to do this, I should use an UIScrollView, and inside an UIImageViews, but i dont know which class I should use to construct this covers on UIScrollView. This is not a cover flow, is just a lista of thumbs for iPad Something like that http://dl.dropbox.com/u/7099330/covers.png -- Thanks for the help! On Fri, Jan 7, 2011 at 2:45 AM, BareFeetWare list.develo...@barefeetware.com wrote: On 07/01/2011, at 1:58 PM, Fernando Aureliano wrote: I'm doing my first app. Is a magazine, and I would like to show a list of covers. Someone can give-me a tip of how I can do this with a UIImageView or something like that? It's hard to answer without know what you've got, but you should be doing something like: 1. In Xcode, create a new project using the Navigation based template for iPhone, or the Split View based template for iPad. 2. Select the RootViewController.m implementation file. 3. Change the tableView:numberOfRowsInSection: method to return the number of rows you want (the number of magazines). 4. At the end of the tableView:cellForRowAtIndexPath: method, just before the return line, insert something like: // Configure the cell. cell.imageView.image = [UIImage imageWithContentsOfFile:@ path/to/image.png]; cell.textLabel.text = @Magazine name; return cell; } 5. Run it. That will give you a list containing thumbnail images. Tom BareFeetWare ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/mail%40fernandoaureliano.com This email sent to m...@fernandoaureliano.com -- *Fernando* ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Thumbs Lists
On 2011-01-07, at 4:21 PM, Fernando Aureliano wrote: Thanks for the tips guys! so... I have a JSON file. I read it and put in array. I want to get some images and do a thumb list, like the covers in iBook. I see the documentation and I dont found nothing for help me there I think for to do this, I should use an UIScrollView, and inside an UIImageViews, but i dont know which class I should use to construct this covers on UIScrollView. This is not a cover flow, is just a lista of thumbs for iPad Something like that http://dl.dropbox.com/u/7099330/covers.png AQGridView? http://rbld.me/e -- Thanks for the help! On Fri, Jan 7, 2011 at 2:45 AM, BareFeetWare list.develo...@barefeetware.com wrote: On 07/01/2011, at 1:58 PM, Fernando Aureliano wrote: I'm doing my first app. Is a magazine, and I would like to show a list of covers. Someone can give-me a tip of how I can do this with a UIImageView or something like that? It's hard to answer without know what you've got, but you should be doing something like: 1. In Xcode, create a new project using the Navigation based template for iPhone, or the Split View based template for iPad. 2. Select the RootViewController.m implementation file. 3. Change the tableView:numberOfRowsInSection: method to return the number of rows you want (the number of magazines). 4. At the end of the tableView:cellForRowAtIndexPath: method, just before the return line, insert something like: // Configure the cell. cell.imageView.image = [UIImage imageWithContentsOfFile:@ path/to/image.png]; cell.textLabel.text = @Magazine name; return cell; } 5. Run it. That will give you a list containing thumbnail images. Tom BareFeetWare ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/mail%40fernandoaureliano.com This email sent to m...@fernandoaureliano.com -- *Fernando* ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/dleber_dev%40codeferous.com This email sent to dleber_...@codeferous.com ;david -- David LeBer Codeferous Software 'co-def-er-ous' adj. Literally 'code-bearing' site: http://codeferous.com blog: http://davidleber.net profile:http://www.linkedin.com/in/davidleber twitter:http://twitter.com/rebeld -- Toronto Area Cocoa / WebObjects developers group: http://tacow.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: Change the NSPreferencePane window size programmatically
Whatever you do to an app that isn't yours:
use the APIs supplied for Interapplication Communication, as there
are (among others):
AppleEvents, AppleScript, Accessibility...
These ensure sufficient isolation between the objects involved, and
they are (to a certain extend) likely to survive the next OS version.
These APIs DO give you objects you're allowed to message, and they
implement messages you're allowed to send to these objects.
Look at this simple AppleScript:
tell application System Preferences
set bounds of window 1 to {342, 125, 937, 585}
end tell
It's very easy to send this via NSAppleScript. So what makes you look
for dirty hacks?
Peter
Am 07.01.2011 um 19:51 schrieb Kyle Sluder:
On Fri, Jan 7, 2011 at 10:42 AM, eveningnick eveningnick
eveningn...@gmail.com wrote:
Kyle,
thanks for the warning, i understand the problems it may cause.
but what if i was doing that, how should have i sent a message to an
object of the host application?
Quite simple: you don't. Ever. If your host object doesn't explicitly
give you an object you're allowed to message, you don't message any of
its objects.
--Kyle Sluder
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Custom path animation for CAShapeLayer
Hi, I'm trying to use a CAShapeLayer for some paths in my application. For the most part this works fine, but in some circumstances the animation from one path to another looks really strange during the animation. I would be able to tell it what the path should be at any intermediate point in the animation, but I'm not sure how to get access to it to provide those paths. Is it possible to provide my own paths for the animation, or get some callback when it wants a new path or the animation advances? If not, what's my best approach for animating the layer? I have played around with the idea of creating a dummy key which I add an animation for and animate it between 0 and 1, and set setNeedsDisplayForKey: to return YES for that key, and then use the value to determine how far through the animation I am and draw the appropriate path, but this seems a really counter-intuitive (hackish) way of doing it, but it seems to work and I haven't yet found a better way... (target is Mac OS X 10.6) Thanks. Ken ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to get colored font smoothing in a CALayer
David Duncan mailto:david.dun...@apple.com wrote (Thursday, January 6, 2011 3:58 PM -0800): You might be able to get something more acceptable by turning on shadowing in the context before you draw the text. This appears to be what the Finder does (if you look closely at the labels on the desktop they don't use sub-pixel antialiasing either, but have a subtle shadow effect). David, I tried drawing with a shadow, and while it produces an interesting effect in my UI, it doesn't improve the smoothing of the text. As an experiment I filled the context with white before drawing any text and that does the trick. The text looks identical to what appears in the Finder and elsewhere. So at least now I know. Thanks for the great information. -- James Bucanek ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
[Moderator] Re: [Job Posting] Software Engineer in Columbia, MD, USA
Reminder Please run job offers past the admin list first. I know that isn’t well known. It needs to be made clearer. Thanks Scott On Jan 5, 2011, at 12:42 PM, Lyndsey Ferguson wrote: https://www.appone.com/MainInfoReq.asp?R_ID=320408 There are Software Engineer positions open with Nemetschek Vectorworks, Inc. in Columbia, MD, USA. See the above link for more information and how to apply. Objective-C knowledge is also an asset. Mr. Lyndsey Ferguson (I am not the hiring manager) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/scott%40cocoadoc.com This email sent to sc...@cocoadoc.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
button states usually always disabled
I've had some icons custom made for my application and they look really good. However, when my application opens up, they are disabled. The reason for this is that they don't change to enabled until the application verifies a configuration and it's in a state ready to run. it's a scientific application and by run I mean it runs simulations. So there's several buttons similar to running and stopping states that are disabled for the most of the time the app is open while the user is configuring and analyzing. My concern is that, I've got these great looking colorful icons that can't really be seen or don't make the app look as good as it could if the buttons were enabled. I'm thinking of putting little light like indicators below the buttons that show when the simulation is ready to run and always keeping the buttons enabled. Anyone had similar experiences/ideas? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
