Re: best practice to create Custom Objects represented by a image in a d-n-d operation
Go for option #1, use a custom drag type (in your case ships) to pasteboard. aha ok understood that part. I think I know how to do it, shouldn't be different form registering a tiff representation of an image just register the NSData of the custom object no? You could update the pasteboard with the array of dictionary objects, the dictionary could hold the image/link to image and an identifier field for the same. didn't get that part good... :s, if I put in the pasteboard custom objetcs (in my case ships) each Ship has an image associated with so in my destination when I read the pasteboard I can get the ship, and know exactly which instance of ship is? for example, a carrier or a frigate or destroyer and so on. I design my model having a super class Ship, and sub classes of Ship, carrier frigate and so on. Thanks for your help -- Sandeep On Mon, Dec 8, 2008 at 1:11 PM, Gustavo Pizano [EMAIL PROTECTED]wrote: Hello. I have in a view images of ships, and Im able to drag them to another view which is the sea board, now, what is better, to create the objects of the ships in the shipsviewcontainer and set the object in the Pasteboard, or, just have representative images in the shipsviewcontainer of each ship, and once dragged to the sea create the instances of the ship that the images represent. If the last one is correct Iw as thinking if how to know which Ship Object the images that is being dragged represents, (maybe by image Size? ) I dunno what do you think its better to do, if I explain my self good. Thanks Gus ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/csandeep%40gmail.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/gustavxcodepicora%40gmail.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: best practice to create Custom Objects represented by a image in a d-n-d operation
On 9.12.2008, at 0:01, Graham Cox wrote: Use a custom drag type for your ship objects. Definitely DO NOT use image size as a way to identify the ship! That's just weird. Learn about MVC (Model-View-Controller). Your ship objects are part of the model, which could include a list of possible ships, and a list of those ships which are at sea. Then your drag-n-drop operation really is just a cover for simply moving ship objects between the two lists. The shipsviewcontainer and the view that shows them at sea are just views that visualise the contents of your model. If you forget about (for the moment) the way stuff is represented on screen and instead work on developing a model that accurately represents the various states of the system, you should find that questions about how to visualise things and other UI-level stuff like drag-n-drop become obvious. It sounds to me that right now you're trying to make your views be the model, which is a whole bag of hurt ;-) hth, Graham In fact I have my ships the grid and the cells in my model level, teh controllers (AppController, which is in charge of the logic of the game, and ViewController, which is in charge of controlling the output) in a controller level, and the views are, well, in a view level. Last night when I went to bed I realize myself that I was making mistake trying to identify the ship my image size, I asked myself what if the image size change? well, then yes what you say is better, in the ShipsContainerView I will instantiate each ship, I will put each object in the pb and then in the destination I will get the object, that should be the best way. Thanks for your help G ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Another NSOutlineView question
Hi, you should be able to detect a double click and call a method then that either temporarily allows the selection or directly starts the edit mode. I do have a similar setup - don't do editing, but I use the double click action via bindings to attach notes to such an unselectable item. Hth, volker Am 09.12.2008 um 06:55 schrieb Graham Cox: In my NSOutlineView, I disallow selection of group items by implementing the delegate method -outlineView:shouldSelectItem:, which works fine, but I still want to be able to edit the titles of group items. The above method prevents this also. How can I prevent selection of the the item but still allow editing of its title string? tia, 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/volker_lists%40ecoobs.de This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSAlert with NSTimer
I did something like this , long time back
hope, this is close enough to your requirement or may be its a wrong
practice ( user discretion required :) )
-()runAlert
{
..// show modal window
NSTimer *myTimer = [[NSTimer scheduledTimerWithTimeInterval:someTime
target:self selector:@selector(killwindow:) userInfo:nil repeats:No];
}
-() killwindow:(NSTimer *) theTimer
{
//kill the window
}
if the user click on the alert window then – invalidate the myTimer
This worked for me
~Rajesh
On Dec 9, 2008, at 10:37 AM, Rashmi Vyshnavi wrote:
Hi,
I want to close a Modal NSAlertPanel after specific period of time
if user
does not click on any of the buttons. Is there a way to set up a
NSTimer to
close the Alert Panel after 10 secs.
--
Thanks..
___
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NSAlert with NSTimer
Hi, I want to close a Modal NSAlertPanel after specific period of time if user does not click on any of the buttons. Is there a way to set up a NSTimer to close the Alert Panel after 10 secs. -- 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 [EMAIL PROTECTED]
Re: NSAlert with NSTimer
I am using NSAlert. When runModal is called on the NSAlert's object, timer
is not fired till the time i close the alert panel..
On Tue, Dec 9, 2008 at 3:20 PM, rajesh [EMAIL PROTECTED] wrote:
I did something like this , long time back
hope, this is close enough to your requirement or may be its a wrong
practice ( user discretion required :) )
-()runAlert
{
..// show modal window
NSTimer *myTimer = [[NSTimer scheduledTimerWithTimeInterval:someTime
target:self selector:@selector(killwindow:) userInfo:nil repeats:No];
}
-() killwindow:(NSTimer *) theTimer
{
//kill the window
}
if the user click on the alert window then – invalidate the myTimer
This worked for me
~Rajesh
On Dec 9, 2008, at 10:37 AM, Rashmi Vyshnavi wrote:
Hi,
I want to close a Modal NSAlertPanel after specific period of time if user
does not click on any of the buttons. Is there a way to set up a NSTimer to
close the Alert Panel after 10 secs.
--
Thanks..
___
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--
Rashmi Vyshnavi
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Re: NSArrayController, NSPopupMenu, defaults and arrangedObjects
snip However, the arrangedObjects array, while existing, contains zero objects. I've checked the Outlet is connected ok. A timing issue of some sort? No. Based on the above, your code isn't KVO compliant. First of all, it's important to realize that nothing is ever bound to an instance variable (selectedIncomeEnvelope), but to an object property (MLBudgetController instance, key selectedIncomeEnvelope). The two are not the same thing, although KVO will *pretend* there's a property when there's only a variable (which appears to be your case, and which is why it works some of the time). When you go to set the initial selected object, you need to change the property, not the variable. This is easiest if you actually define the property (or write the getter setter): @property NSManagedObject *selectedIncomeEnvelope; ... @synthesize selectedIncomeEnvelope; ... self.selectedIncomeEnvelope= [[incomeEnvelopeController arrangedObjects] objectAtIndex:0]; That should cause the proper KVO notification to be sent, and for the correct object to be selected in the user interface. Ah, I understand. I've implemented the correct property now but I still have the problem of arrangedObjects returning an empty array when called in windowDidLoad. So I can't set my property as I have nothing to set it with. Any ideas why arrangedObjects would return zero? It's like the window and controls and initialised before Core Data can return the 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 [EMAIL PROTECTED]
Re: iPhone Orientation
no longer a violation of the NDA provided you're discussing publicly released software, as the new NDA states; as far as I understand it. You may or may not have better luck over the iPhone dev forums, there's a couple of great people over there who are very good at answering the iPhone oddity questions but not the wealth of experience in cocoa you find here. One of the powerful things about cocoa touch (IMO) is that it's really just like the rest of cocoa and there's a lot to be gained from asking questions here and just reading the posts. The design patterns are the same, a lot of the workhorse classes are the same and the display classes do share some similarities. I would recommend, if you haven't done so, reading all the tutorials about UIViewController, 'your first iPhone app' etc. I've read them a couple of times now and just having a passing familiarity with the concepts and terms means I can search quite efficiently and find things. The documentation is I think mostly extremely good; for instance had you just typed 'orientation' into the search box with 'API' and one or other of the iPhone doc sets highlighted .. you would have have UIViewController and UIApplicationDelegate methods to dig in to and probably answered your own question. When you are reading documentation I would also suggest only having the iPhone doc set selected .. I have gone down the path of trying to use what looked like a great piece of cocoa only to find ... it wasn't going to work on the device. On Dec 9, 2008, at 11:16 AM, Bruce Martin wrote: Thanks for the answers. I was told that it was a violation of the NDA: Until an announcement is made otherwise, developers should be aware that the iPhone SDK is still under non-disclosure (section 5.3 of the iPhone Development Agreement). It can't be discussed here, or anywhere publicly. This includes other mailing lists, forums, and also blogs. Violating the NDA will result in WWDR being notified of the breach. Further action is at their (and legal's) discretion. / I was confused because Apple had stated recently: On October 1st, Apple decided to remove the non-disclosure agreement (NDA) for released iPhone software. The updated iPhone SDK agreement is posted on the iPhone Dev Center.View now So until the confusion can be resolved I will not continue this, but I thank you all for any answers you have given so far. Bruce Martin The Martin Solution [EMAIL PROTECTED] http://www.martinsolution.com http://externals.martinsolution.com On Dec 8, 2008, at 10:51 AM, Dave DeLong wrote: UIViewController has methods that are called to notify that the iPhone will, is, or has rotated: - (BOOL)shouldAutorotateToInterfaceOrientation: (UIInterfaceOrientation)interfaceOrientation - (void)willRotateToInterfaceOrientation: (UIInterfaceOrientation)toInterfaceOrientationduration: (NSTimeInterval)duration - (void)willAnimateFirstHalfOfRotationToInterfaceOrientation: (UIInterfaceOrientation)toInterfaceOrientation duration: (NSTimeInterval)duration - (void)willAnimateSecondHalfOfRotationFromInterfaceOrientation: (UIInterfaceOrientation)fromInterfaceOrientation duration: (NSTimeInterval)duration - (void)didRotateFromInterfaceOrientation: (UIInterfaceOrientation)fromInterfaceOrientation All you would need to do is implement any of those in your ViewController to rearrange your interface appropriately. You can call [self setVew:someNewUIView] in a method, or whatever. Cheers, Dave On Dec 6, 2008, at 10:19 AM, Bruce Martin wrote: I'm not sure this is the right list but a search in the Archives returned no results for this question so that makes this question a simple one, or maybe no one else has had an issue with it. I am trying to get notifications that the orientation of the iPhone has changed, if it changed then I want to change the view to a new view which will contain different information than the original upright view. I tried looking for some examples or tutorials but can't find anything so the more basic your answer the better :) Thanks Bruce Martin ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/bmartin%40mac.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/rols%40rols.org This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Re: NSArrayController, NSPopupMenu, defaults and arrangedObjects
Hi Steven, as far as I know, the fect happens in the next run loop. So you would need to set the selection then. This is possible for example via the performSelector:withObject:afterDelay: and a delay of 0.0 on self (?). Cheers, Volker Ah, I understand. I've implemented the correct property now but I still have the problem of arrangedObjects returning an empty array when called in windowDidLoad. So I can't set my property as I have nothing to set it with. Any ideas why arrangedObjects would return zero? It's like the window and controls and initialised before Core Data can return the 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 [EMAIL PROTECTED]
Re: Optimized image drawing (currently using CGImageCreate - CGContextDrawImage)
As far as I remember, you can get something like 1000 512x512 image draw per sec on a mac pro (not a very good card, but not bad also). If you use OpenGL instead of CoreGraphics, this is more like 7000 1024x768 image per sec. Did you have QuartzGL turned on when you tested this? Matthew ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Development workflows for signed code?
I'm just dipping my toes into the world of signed code. After spending some time with the Code Signing guide, I'm still not clear on how this affects the work flows around my product (SCPlugin, http://scplugin.tigris.org , which adds Subversion capabilities to Finder), partly because of some peculiarities it has: - It's a Finder plugin, not an app - It's open-source, so the developers don't work for the same company, and I need to make it very easy for developers to start - Many devs work on Tiger, where codesign is not available (release happens from Leopard) I think I know how to generate identities and sign the plugin bundle. I see claims that self-signed certs are good enough for developers. What I'm not clear on, primarily, is what are the effects of mixing up copies of the same bundle signed with different identities? Will there be pop-ups that mention the certifying identity, for instance? Will there be difficulties installing one version over another (where the signing identity changes)? My experiments so far seem to show that none of those things happens. In fact, even if I modify one of the files, so that codesign -v no longer likes the bundle, it still seems to work. Is codesign -v the only (Leopard) thing that cares about all this? -==- Jack Repenning [EMAIL PROTECTED] Project Owner SCPlugin http://scplugin.tigris.org Subversion for the rest of OS X ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Development workflows for signed code?
Le 9 déc. 08 à 05:12, Jack Repenning a écrit : I'm just dipping my toes into the world of signed code. After spending some time with the Code Signing guide, I'm still not clear on how this affects the work flows around my product (SCPlugin, http://scplugin.tigris.org , which adds Subversion capabilities to Finder), partly because of some peculiarities it has: - It's a Finder plugin, not an app - It's open-source, so the developers don't work for the same company, and I need to make it very easy for developers to start - Many devs work on Tiger, where codesign is not available (release happens from Leopard) I think I know how to generate identities and sign the plugin bundle. I see claims that self-signed certs are good enough for developers. What I'm not clear on, primarily, is what are the effects of mixing up copies of the same bundle signed with different identities? Will there be pop-ups that mention the certifying identity, for instance? Will there be difficulties installing one version over another (where the signing identity changes)? My experiments so far seem to show that none of those things happens. In fact, even if I modify one of the files, so that codesign -v no longer likes the bundle, it still seems to work. Is codesign -v the only (Leopard) thing that cares about all this? Have a look at this technote. There is a lot of answers in it, for example, the list of technologies that rely on code signing in Leopard. http://developer.apple.com/technotes/tn2007/tn2206.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 [EMAIL PROTECTED]
[Moderator] Re: Design patterns: MVC, MVP, Passive View... where is Apple heading???
On 9-Dec-08, at 8:36 AM, Karan, Cem (Civ, ARL/CISD) wrote: To lay the groundwork for this question, I'm going to state that I'm getting my definitions for MVC, MVP, and Passive View from the following: http://en.wikipedia.org/wiki/Model-view-controller http://en.wikipedia.org/wiki/Model_View_Presenter http://www.martinfowler.com/eaaDev/PassiveScreen.html Apple has always stated that it uses the MVC design pattern, but I noticed in OS X 10.5 we've gotten NSViewController, KVO, bindings, etc., objects that seem to behave more like the Passive View design pattern. Is this where Apple wants us to head? I want to plan out my code in a manner that plays as well as possible with Apple's chosen design patterns, which is why I want to know where Apple is headed. this is a much more fundamental argument than a cocoa technical one. Please don't clutter the Cocoa list with this type of contennt. Consider obj-c-language or other forums [closed] thanks scott [moderatr] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSAlert with NSTimer
The +scheduledTimer* methods schedule the timer using the default
runloop mode. Try creating a timer without scheduling it, then adding
it yourself to the current runloop with NSRunLoop's -addTimer:forMode:
instead, using the NSModalPanelRunLoopMode mode:
myTimer = [NSTimer timerWithTimeInterval:1.0
target:self
selector:@selector(killWindow:)
userInfo:nil
repeats:NO];
[[NSRunLoop currentRunLoop] addTimer:myTimer
forMode:NSModalPanelRunLoopMode];
sherm--
On Dec 9, 2008, at 4:59 AM, Rashmi Vyshnavi wrote:
I am using NSAlert. When runModal is called on the NSAlert's object,
timer
is not fired till the time i close the alert panel..
On Tue, Dec 9, 2008 at 3:20 PM, rajesh [EMAIL PROTECTED] wrote:
I did something like this , long time back
hope, this is close enough to your requirement or may be its a wrong
practice ( user discretion required :) )
-()runAlert
{
..// show modal window
NSTimer *myTimer = [[NSTimer scheduledTimerWithTimeInterval:someTime
target:self selector:@selector(killwindow:) userInfo:nil repeats:No];
}
-() killwindow:(NSTimer *) theTimer
{
//kill the window
}
if the user click on the alert window then – invalidate the
myTimer
This worked for me
~Rajesh
On Dec 9, 2008, at 10:37 AM, Rashmi Vyshnavi wrote:
Hi,
I want to close a Modal NSAlertPanel after specific period of time
if user
does not click on any of the buttons. Is there a way to set up a
NSTimer to
close the Alert Panel after 10 secs.
--
Thanks..
___
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--
Rashmi Vyshnavi
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Issue with the preference window
Hi All, I am trying out for the preference window.It is a simple app, and under the main menu when I click on the preference it shows the preference menu popup. But when I quit the preference window my app seemed to getting hang.I am not able to quit the application and also the main menu also becoms inactive. I have linked the Preference menu with function makeKeyAndOrderFront in the IB. But in the IB Tool in case of the Preference window under the Panel Connetions corresponding to makeKeyAndOrderFront i see some number 121 , is it ok? Anybody came across similar issues? Thanks in advance Arnab ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSTask and environment variables
Le 9 déc. 08 à 11:51, Ingvar Nedrebo a écrit : On Dec 9, 2008, at 00:43, Chris Idou wrote: I want to call a script with NSTask and I want to set an environment variable. But it seems like bad form to blow away the current environment. So I guess I need to read the current environment and extend it before passing it to NSTask. Is there any Cocoa API which returns the environment as a NSDictionary, or do I need to drop down to the UNIX getenv() level? I just call setenv(). That sets one variable without affecting the rest of the environment, as far as I know? i. [[NSProcessInfo processInfo] environment] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSTask and environment variables
On Dec 9, 2008, at 00:43, Chris Idou wrote: I want to call a script with NSTask and I want to set an environment variable. But it seems like bad form to blow away the current environment. So I guess I need to read the current environment and extend it before passing it to NSTask. Is there any Cocoa API which returns the environment as a NSDictionary, or do I need to drop down to the UNIX getenv() level? I just call setenv(). That sets one variable without affecting the rest of the environment, as far as I know? i. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSAlert with NSTimer
It worked after adding timer in NSModalPanelRunLoopMode.Thanks
On Tue, Dec 9, 2008 at 3:46 PM, Sherm Pendley [EMAIL PROTECTED]wrote:
The +scheduledTimer* methods schedule the timer using the default runloop
mode. Try creating a timer without scheduling it, then adding it yourself to
the current runloop with NSRunLoop's -addTimer:forMode: instead, using the
NSModalPanelRunLoopMode mode:
myTimer = [NSTimer timerWithTimeInterval:1.0
target:self
selector:@selector(killWindow:)
userInfo:nil
repeats:NO];
[[NSRunLoop currentRunLoop] addTimer:myTimer
forMode:NSModalPanelRunLoopMode];
sherm--
On Dec 9, 2008, at 4:59 AM, Rashmi Vyshnavi wrote:
I am using NSAlert. When runModal is called on the NSAlert's object, timer
is not fired till the time i close the alert panel..
On Tue, Dec 9, 2008 at 3:20 PM, rajesh [EMAIL PROTECTED] wrote:
I did something like this , long time back
hope, this is close enough to your requirement or may be its a wrong
practice ( user discretion required :) )
-()runAlert
{
..// show modal window
NSTimer *myTimer = [[NSTimer scheduledTimerWithTimeInterval:someTime
target:self selector:@selector(killwindow:) userInfo:nil repeats:No];
}
-() killwindow:(NSTimer *) theTimer
{
//kill the window
}
if the user click on the alert window then – invalidate the myTimer
This worked for me
~Rajesh
On Dec 9, 2008, at 10:37 AM, Rashmi Vyshnavi wrote:
Hi,
I want to close a Modal NSAlertPanel after specific period of time if
user
does not click on any of the buttons. Is there a way to set up a NSTimer
to
close the Alert Panel after 10 secs.
--
Thanks..
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Design patterns: MVC, MVP, Passive View... where is Apple heading???
To lay the groundwork for this question, I'm going to state that I'm getting my definitions for MVC, MVP, and Passive View from the following: http://en.wikipedia.org/wiki/Model-view-controller http://en.wikipedia.org/wiki/Model_View_Presenter http://www.martinfowler.com/eaaDev/PassiveScreen.html Apple has always stated that it uses the MVC design pattern, but I noticed in OS X 10.5 we've gotten NSViewController, KVO, bindings, etc., objects that seem to behave more like the Passive View design pattern. Is this where Apple wants us to head? I want to plan out my code in a manner that plays as well as possible with Apple's chosen design patterns, which is why I want to know where Apple is headed. Thanks, Cem Karan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Implementing Delete key event
Mahaboob wrote: Hi all, In my application NSPopUpButton shows the table names in the database. When I'm pointing one table name and hitting delete key, I need to delete the table from the database. How can I implement delete key event for PopUp Button? If I'm understanding correctly (or even close to correctly) what you're asking for, I think my answer is going to be that you need to rethink your UI. The behavior you seem to be describing is well outside the normal interaction with a popup button and I'd argue that it's likely to confuse users or even be invoked unintentionally. Both of those are undesirable during an operation that's inherently destructive. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Development workflows for signed code?
On Tue, Dec 9, 2008 at 4:12 AM, Jack Repenning [EMAIL PROTECTED] wrote: My experiments so far seem to show that none of those things happens. In fact, even if I modify one of the files, so that codesign -v no longer likes the bundle, it still seems to work. Is codesign -v the only (Leopard) thing that cares about all this? My understanding is that the main thing that it affects at the moment is access to the Keychain. If you break the signature, I think users will be prompted to enter their password whenever they access the Keychain. There are also implications for when upgraded applications try and access the Keychain. The other thing that it affects is the parental controls but I don't know the details. You can change the behaviour of your application by using the Kill flag (IIRC) which will prevent the application from running with an invalid signature. It wouldn't surprise me if future releases of OS X make more use of the code signature. By the way, you should post code signing questions to the apple-cdsa list rather than the Cocoa list as you'll get a better response there. -- Chris ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: ASLExpireTime Format? [Solved, somewhat]
So, I think I know why ASLExpireTime had no effect on the making messages persist in the main database. It looks like syslogd has to be started with the -a flag to enable archiving. When I added the flag to the ProgramArguments section of / System/Library/LaunchDaemons/com.apple.syslogd.plist, the messages correctly expired and the database was archived daily. However, in a standard Mac OS X installation, the flag is omitted and archiving is disabled - old messages are purged from /var/log/asl.db weekly and the log database starts fresh. I guess the only option is to use asl_add_log_file() and manage the log files manually. Karl Moskowski [EMAIL PROTECTED] Voodoo Ergonomics Inc. http://voodooergonomics.com/ smime.p7s Description: S/MIME cryptographic signature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Printing File to PDF from Native Application
There is no reliable documented API for switching the default printer. There are workarounds which might or might not work in the future. Briefly: there are CUPS techniques for setting the default printer. Under 10.4 these worked. Under 10.5 these work unless the user has chosen Last Printer in System preferences as the default printer, in which case the CUPS setting is ignored. So you have to check that preference, and potentially switch it temporarily. Hint: /usr/bin/defaults -currentHost read com.apple.print.PrintingPrefs UseLastPrinterAsCurrentPrinter There is no system facility for creating a printer which creates a PDF file. There is a download called CUPS-PDF which will do this. There are certain things about it that I don't like WRT file naming placement. There are also some shell scripts floating around that accomplish the same thing. If you examine them, you find that they're basically just passing data through, since CUPS sends PDF to the driver. So what they really do is a batch of setup WRT to parsing command-line arguments, naming creating placing a file, and so on. The biggest problem with these is that they assume one instance, and if you try to create multiple printer instances, they all put files in the same place. So your custom printer would potentially interfere with ones set up by a user, rather than being truly dedicated to your use. It would be possible to modify one of these to name place the PDF files as you prefer. I would have done that, but I hate bash scripting, so I wrote my own in Ruby. In or to print a file using another program, you want to look into AppleScript and possibly Launch Services. -- Scott Ribe [EMAIL PROTECTED] http://www.killerbytes.com/ (303) 722-0567 voice ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How Can I Notify DrawRect Method?
On Dec 9, 2008, at 9:17 AM, Chunk 1978 wrote: that works... but now i want that rect to redraw itself when notified to do so, but i can't figure out how to notify the NSRect to draw again... all my NSUserDefaults colorAsData is in place, as well as my NSNotifications. it will print to NSLog so i know that notification is being called, but how do direct that notification to the drawRect method? -setNeedsDisplay: or -setNeedsDisplayInRect:. Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Text Not Anti-Aliased In NSView
On Dec 9, 2008, at 9:21 AM, Chunk 1978 wrote: this link ( http://att.macrumors.com/attachment.php?attachmentid=147663d=1228770137 ) will show you an image displaying this problem. the window on the left is from within Interface Builder (anti-aliased text), the window on the right is the running build (text with aliasing). how can i solve this problem? Are you sure you're placing the rect in an integral frame, and drawing the text in integral bounds? Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Best way to do hit testing on an image?
I am in the process of creating a new interface for my program, which, for lack of any good comparison, can be thought of as a 2D scrolling game with a bunch of clickable sprites. I need to do hit testing to see if particular bitmaps have been clicked on. I have the following information available to me: - An array of NSImages that I can get bitmaps and masks from - The view I'm compositing the images into. - The order I'm compositing the images (so I know which image is painted on top of which other one, letting me calculate a new bitmask) - The location I'm compositing the images relative to the view. What I want to know is if a user has clicked on a particular image. I know I need to do hit testing, and I know I can create my own code to do so, but I was wondering if Cocoa had some built-in method to determine if a point is within a bitmask or not. If there is a built-in way, I'd rather use that. Thanks, Cem Karan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How Can I Notify DrawRect Method?
On Dec 9, 2008, at 5:17 PM, Chunk 1978 wrote:
i'm assuming this is simple, but i can't solve the problem. at launch
of the application, an NSRect is drawn with a userdefault color:
-=-=-=-=-
- (void)drawRect:(NSRect)rect
{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSData *colorAsData;
colorAsData = [defaults objectForKey:@aColor];
NSColor *menuBarColor = [NSKeyedUnarchiver
unarchiveObjectWithData:colorAsData];
[menuBarColor set];
NSRectFill([self bounds]);
}
-=-=-=-=-
that works... but now i want that rect to redraw itself when notified
to do so, but i can't figure out how to notify the NSRect to draw
again... all my NSUserDefaults colorAsData is in place, as well as my
NSNotifications. it will print to NSLog so i know that notification
is being called, but how do direct that notification to the drawRect
method?
-=-=-=-=-
- (void)awakeFromNib
{
[MenuBarWindow setAlphaValue:0.0];
NSNotificationCenter *notificationCenter = [NSNotificationCenter
defaultCenter];
NSString *changeColorNotification = @changeColorNotification;
[notificationCenter addObserver:self selector:@selector(changeColor:)
changeColorNotification object:nil];
}
- (void)changeColor:(NSNotification *)notification
{
NSLog(@Call drawRect);
//call drawRect:(NSRect)rect method
Let me cover the obvious part... ( just to see that no stone is
unturned )
you mean , even after when you tried[self setNeedsDisplay:YES]
I guess you know that , you are not supposed to invoke the drawRect
directly ..
Are you sure this what you wanted ? or I didn't get the tone of
obvious tricky question ??
}
-=-=-=-=-
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Re: Right way to implement contextual menu in table/outline view?
Le Dec 8, 2008 à 8:12 PM, Graham Cox a écrit : On 9 Dec 2008, at 2:56 pm, Jim Correia wrote: On Dec 8, 2008, at 10:51 PM, Graham Cox wrote: In my app I have an NSOutlineView. I have contextual menus relating to the overall table, but also relating to an individual item row. I notice that when I right-click on a row, I get a special highlight (blue outline) independent of the selected row. How can I find out what row that was when the menu item's action is called? I need to handle the menu differently depending on whether a specific row was right-clicked or just the general table. I don't know if this made the general docs, but this is discussed in the AppKit release notes for Leopard. The relevant section is titled NSTableView/NSOutlineView - Contextual menu support. Jim Thanks Jim, just what I needed (in a nutshell, -clickedRow:) Also look at the DragNDropOutlineView example that shows how to do this. If -clickedRow is in the -selectedRowIndexes, then you should apply your context to all selectedRows. corbin___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How Can I Notify DrawRect Method?
i hadn't tried setNeedsDisplay:YES... but this works... and now i know
what setNeedsDisplay means, which is exciting :)
thanks everyone.
On Tue, Dec 9, 2008 at 11:27 AM, rajesh [EMAIL PROTECTED] wrote:
On Dec 9, 2008, at 5:17 PM, Chunk 1978 wrote:
i'm assuming this is simple, but i can't solve the problem. at launch
of the application, an NSRect is drawn with a userdefault color:
-=-=-=-=-
- (void)drawRect:(NSRect)rect
{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSData *colorAsData;
colorAsData = [defaults objectForKey:@aColor];
NSColor *menuBarColor = [NSKeyedUnarchiver
unarchiveObjectWithData:colorAsData];
[menuBarColor set];
NSRectFill([self bounds]);
}
-=-=-=-=-
that works... but now i want that rect to redraw itself when notified
to do so, but i can't figure out how to notify the NSRect to draw
again... all my NSUserDefaults colorAsData is in place, as well as my
NSNotifications. it will print to NSLog so i know that notification
is being called, but how do direct that notification to the drawRect
method?
-=-=-=-=-
- (void)awakeFromNib
{
[MenuBarWindow setAlphaValue:0.0];
NSNotificationCenter *notificationCenter = [NSNotificationCenter
defaultCenter];
NSString *changeColorNotification = @changeColorNotification;
[notificationCenter addObserver:self
selector:@selector(changeColor:)
changeColorNotification object:nil];
}
- (void)changeColor:(NSNotification *)notification
{
NSLog(@Call drawRect);
//call drawRect:(NSRect)rect method
Let me cover the obvious part... ( just to see that no stone is unturned
)
you mean , even after when you tried[self setNeedsDisplay:YES]
I guess you know that , you are not supposed to invoke the drawRect directly
..
Are you sure this what you wanted ? or I didn't get the tone of obvious
tricky question ??
}
-=-=-=-=-
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Re: Another NSOutlineView question
Le Dec 9, 2008 à 12:40 AM, Volker in Lists a écrit : Hi, you should be able to detect a double click and call a method then that either temporarily allows the selection or directly starts the edit mode. I do have a similar setup - don't do editing, but I use the double click action via bindings to attach notes to such an unselectable item. This approach may work, but it will give some undesired UI; this app would the only be editable on double clicking, while other apps edit on single-click (ala Leopard NSTableView and Finder). You want to use this delegate method: /* Optional - Custom tracking support It is possible to control the ability to track a cell or not. Normally, only selectable or selected cells can be tracked. If you implement this method, cells which are not selectable or selected can be tracked, and vice-versa. For instance, this allows you to have an NSButtonCell in a table which does not change the selection, but can still be clicked on and tracked. */ - (BOOL)tableView:(NSTableView *)tableView shouldTrackCell:(NSCell *) cell forTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER; Return YES for your cell, and it should be trackable, and hence editable... corbin Hth, volker Am 09.12.2008 um 06:55 schrieb Graham Cox: In my NSOutlineView, I disallow selection of group items by implementing the delegate method -outlineView:shouldSelectItem:, which works fine, but I still want to be able to edit the titles of group items. The above method prevents this also. How can I prevent selection of the the item but still allow editing of its title string? tia, ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How Can I Notify DrawRect Method?
On Tue, Dec 9, 2008 at 11:17 AM, Chunk 1978 [EMAIL PROTECTED] wrote: that works... but now i want that rect to redraw itself when notified to do so, but i can't figure out how to notify the NSRect to draw again... all my NSUserDefaults colorAsData is in place, as well as my NSNotifications. it will print to NSLog so i know that notification is being called, but how do direct that notification to the drawRect method? In addition to NIck's advice, you should give this a thorough read (to save yourself lots of headaches): http://developer.apple.com/DOCUMENTATION/Cocoa/Conceptual/CocoaDrawingGuide/Introduction/chapter_1_section_1.html Also, the custom view that draws the rectangle should probably maintain this property itself (such as -rectColor). It's probably trivial for your current application (which looks like a learning exercise) but has performance implications in a full-fledged app. This way, you can always use [self rectColor] instead of all the messaging overhead of asking preferences each time you draw. To handle the color change in the user defaults, use the same method (the notification) but set the new color as the notification's object when you post the notification in the first place, then your view can ask the notification for its -object and (if it's a proper color), call [self setRectColor:[aNotification object]]. In your -setRectColor: you can store the color then immediately call [self setNeedsDisplay:YES] (if the color is different). This way, any time the view's color is set (either directly or by notification), the view is always marked as needing display and no further calls to -setNeedsDisplay: are needed for rect color changes. That means less to debug. :-) -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: The thread that starts by NSTask didn't clear up
I started an AP use NSTask in my project ,when I loaded this AP, thread count will be increased ,after sending apple event to AP , and AP will exit, but thread count can't decrease. If I used this method load AP more times, thread count will increased, but there was no problem on tiger, just present leopard. Sorry for my poor english. I assume that AP acually means application. I understand that you send some Apple event to your application like a quit' event, right? You say that your application exit. OK. So what process the threads you're talking about belong to? Where does NSTask come into this? You have to be more precise to get an answer... EG This message and any attachments (the message) are confidential and intended solely for the addressee(s). Any unauthorised use or dissemination is prohibited. E-mails are susceptible to alteration. Neither DxO Labs nor any of its subsidiaries or affiliates shall be liable for the message if altered, changed or falsified. Ce message et toutes les pieces jointes (ci-apres le message) sont confidentiels et etablis a l'intention exclusive de ses destinataires. Toute utilisation ou diffusion non autorisee est interdite. Tout message electronique est susceptible d'alteration. DxO Labs et ses filiales declinent toute responsabilite au titre de ce message s'il a ete altere, modifie ou falsifie. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
How to launch window of the application on clicking of dock icon?
Hi, I have created a simple application in cocoa. when it is ran, the main window appears and a default dock icon in the Dock. If i close the window, the dock icon still stays. But if i click on the dock icon then also the main window is visible. The only way i can see the main window is by quitting the app and launching it again. Is there any way in which upon clicking on the dock, the application window becomes visible. Thanks Arun KA ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How to launch window of the application on clicking of dock icon?
In your app delegate, implement -applicationDidBecomeActive: to show your window. On Dec 9, 2008, at 12:02 PM, Arun wrote: Hi, I have created a simple application in cocoa. when it is ran, the main window appears and a default dock icon in the Dock. If i close the window, the dock icon still stays. But if i click on the dock icon then also the main window is visible. The only way i can see the main window is by quitting the app and launching it again. Is there any way in which upon clicking on the dock, the application window becomes visible. Thanks Arun KA ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/joshaber%40gmail.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How to launch window of the application on clicking of dock icon?
On 9 Dec 2008, at 17:02:19, Arun wrote: Hi, I have created a simple application in cocoa. when it is ran, the main window appears and a default dock icon in the Dock. If i close the window, the dock icon still stays. But if i click on the dock icon then also the main window is visible. The only way i can see the main window is by quitting the app and launching it again. Is there any way in which upon clicking on the dock, the application window becomes visible. Thanks Arun KA I don't actually have an answer, but it sounds like the applicationShouldTerminateAfterLastWindowClosed: delegate method might be right for you. Although I am just guessing here. http://developer.apple.com/DOCUMENTATION/Cocoa/Reference/ApplicationKit/Classes/NSApplication_Class/Reference/Reference.html#/ /apple_ref/occ/instm/NSObject/ applicationShouldTerminateAfterLastWindowClosed: ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Fwd: Text Not Anti-Aliased In NSView
-- Forwarded message -- From: Chunk 1978 [EMAIL PROTECTED] Date: Tue, Dec 9, 2008 at 12:34 PM Subject: Re: Text Not Anti-Aliased In NSView To: Nick Zitzmann [EMAIL PROTECTED] i studied apple's Basic Cocoa Animations example found here: http://developer.apple.com/samplecode/BasicCocoaAnimations/index.html in apple's example the text is also aliased (check out the Medium view)... so i'm wondering if fixing aliased text with this method is just something they didn't touch upon in the example, or if there is really no fix. On Tue, Dec 9, 2008 at 11:25 AM, Nick Zitzmann [EMAIL PROTECTED] wrote: On Dec 9, 2008, at 9:21 AM, Chunk 1978 wrote: this link ( http://att.macrumors.com/attachment.php?attachmentid=147663d=1228770137 ) will show you an image displaying this problem. the window on the left is from within Interface Builder (anti-aliased text), the window on the right is the running build (text with aliasing). how can i solve this problem? Are you sure you're placing the rect in an integral frame, and drawing the text in integral bounds? Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Accessing NSKeyedArchiver's archivedDataWithRootObject by name
I have a situation where I'm archiving an array of objects via NSKeyedArchiver's archivedDataWithRootObject: and later needing to set a delegate on the NSKeyedUnarchiver that decodes it. The documentation is a bit unclear on how one starts the unarchive process when a NSKeyedUnarchiver is created on an archive where you don't know, for certain, the keys it contains. So my question... is this legitimate? NSKeyedUnarchiver *_keyedUnarchiver = [[[NSKeyedUnarchiver alloc] initForReadingWithData:archivedData] autorelease]; [_keyedUnarchiver setDelegate:self]; NSMutableArray *archivedArray = [_keyedUnarchiver decodeObjectForKey:@root]; [_keyedUnarchiver finishDecoding]; It works, but I always question things when I hard-code a string for something. Will 'root' always be the key that represents the root object? If I could do something like [NSKeyedUnarchiver unarchiveObjectWithData:delegate:], that would be better than perfect. -- Jim http://nukethemfromorbit.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: performance problem with IORegistryEntryCreateCFProperties
I totally agree with Herb here. If matching on a specific serial
number is not feasible, at the very least, match on the
IOHIDDevicesKey. As opposed to polling, you will be informed with the
HID topology changes.
One very important note though. I would avoid calling
IORegistryEntryCreateCFProperties() unless you are the creator of the
device. IORegistryEntryCreateCFProperties() can be expensive,
especially if all you want is the serial number. Use
IORegistryEntryCreateCFProperty() to just get the serial number.
Why is IORegistryEntryCreateCFProperties() so bad?... well it causes
the entire HID descriptor to be parsed, and there are some devices
(certain keyboards) that have cause the parsing to expand into
hundreds of elements. If seen this effectively stall the machine.
Thus, making multiple calls to IORegistryEntryCreateCFProperty() to
get a handful of properties is much better than creating the full
dictionary.
-raleigh
On 09 Dec,2008, at 9:01 AM, Herb Petschauer wrote:
Out of curiosity, why spawn a second thread to poll when you can use
IOServiceAddMatchingNotification() [and friends, search in
/Developer/Examples] to get you notifications of devices appearing and
disappearing? That is going to faster than walking the entire
IORegistry every time to find the matches which is effectively what
IOServiceGetMatchingServices() is going to be doing [do an ioreg -l
in Terminal window to get the full list]
Cheers,
-H.
2008/12/8 Brad Justice [EMAIL PROTECTED]:
My application spawns a POSIX background thread that polls for
certain
hardware changes. I have found that according to Activity Monitor
and BigTop
it is consuming about 5% of the CPU, which seems inexplicable to me.
The thread loop calls sleep(2) and then begins its checks. Setting
Activity
Monitor granularity to 0.5 seconds, I find that every 4 periods the
thread
consumes 20% of the CPU, and 0 % for the other three. By commenting
out
sections of code, I have isolated the CPU usage to one loop that
executes 7
times. I have confirmed the number of iterations by single stepping
in the
debugger.In particular, the execution of seven paired calls to
IORegistryEntryCreateCFProperties and CFRelease result in 5% CPU
usage on my
MacBook Pro according to my tools.
Am I misinterpreting my tools, is this an Activity Monitor bug, or
are
IORegistryEntryCreateCFProperties and CFRelease heavily CPU
intensive for
some reason? It seems to me seven calls every two seconds should not
register activity at this level.
Thanks for any advice that you can provide. Source for the
offending loop
below.
classToMatch = IOServiceMatching (kIOHIDDeviceKey);
if (classToMatch)
{ numberRef = NULL; mach_port_t
mport =
[myList getMasterport];
result =
IOServiceGetMatchingServices(mport,classToMatch,iterator);
if (KERN_SUCCESS == result) {
if(iterator)
{
while( ( serviceObject = IOIteratorNext
( iterator ) ) )
{
CFMutableDictionaryRef hidProperties = 0;
result = IORegistryEntryCreateCFProperties
(serviceObject, hidProperties, kCFAllocatorDefault, kNilOptions);
if (result == KERN_SUCCESS)
{
serialNumberValue = (NSString *)
CFDictionaryGetValue(hidProperties,CFSTR(SerialNumber));
if (serialNumberValue != NULL)
{
range = [serialNumberValue
rangeOfString:matchingString];
if (range.length != 0)
{
count++;
}
}
}
CFRelease(hidProperties);
}
IOObjectRelease(iterator);
} } }
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Quote in path name
The following returns a nil image with a path of lg002025-Santa.tif NSImage *image = [[NSImage alloc] initWithContentsOfFile:path]; bool ok = [image isValid]; but returns a valid image if the path is lg002025-Santa.tif so how can the finder allow in the name but NSImage burps on ? David Blanton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How to launch window of the application on clicking of dock icon?
This depends on your application. A document based application will automatically create a new untitled document for you. Which is generally what you want. If you app is really document based, its best to use the document based project template. If you app is not document based (say Mail or System preferences) then you have to consider what the expected / correct behavior is. Mail stays active when you close all of it's windows (checking email in the background). For this behavior use -applicationDidBecomeActive: to check if any widows are shown. If not, then show the expected window. For some (rare) apps on OS X, staying open is not expected / wanted. For example, System Preferences quits when you close its one and only window. This can be done via - applicationShouldTerminateAfterLastWindowClosed. If this is just a test app, you might want to try them all to get a feel for it. But for a real app, consider very carefully which behavior you want. -raleigh On 09 Dec,2008, at 9:02 AM, Arun wrote: Hi, I have created a simple application in cocoa. when it is ran, the main window appears and a default dock icon in the Dock. If i close the window, the dock icon still stays. But if i click on the dock icon then also the main window is visible. The only way i can see the main window is by quitting the app and launching it again. Is there any way in which upon clicking on the dock, the application window becomes visible. Thanks Arun KA ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/ledet%40apple.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSNumberFormatter strange symbols on PPC/10.4
I did encounter the same problem (developing on 10.5 and testing on
10.4)
It seem's to be a know bug in NSNumberFormatter
I solved it by subclassing NSNumberFormatter like this:
#import MCNumberFormatter.h
@implementation MCNumberFormatter
- (NSString *)stringForObjectValue:(id)anObject
{
NSLog(@stringforobject anobject: %@ ,anObject);
if([anObject isEqualTo:[NSDecimalNumber zero]])
return @;
else
return [super stringForObjectValue:anObject];
}
- (BOOL)getObjectValue:(id *)anObject forString:(NSString *)string
errorDescription:(NSString **)error
{
NSLog(@getObjectValueforString: %@ aString,string);
return [super getObjectValue:anObject forString:string
errorDescription:error];
}
@end
and used this class like this:
MCNumberFormatter *totalFormatter = [[MCNumberFormatter alloc] init];
[totalFormatter setFormatterBehavior:NSNumberFormatterBehavior10_4];
[totalFormatter setNumberStyle:NSNumberFormatterDecimalStyle];
[totalFormatter setLocalizesFormat:YES];
[totalFormatter setMinimumFractionDigits:2];
[totalFormatter setMaximumFractionDigits:2];
Hopes it help
Stéphane
Le 8 déc. 08 à 20:53, Andy Bettis a écrit :
Hi,
In my app I have an NSTableView in the main window, within this
there's a column with an NSNumberFormatter attached. The formatter
is set to 10.4 behaviour and currency style. On my development
machine all looks OK, however the customer's machine shows the
numbers as a currency symbol (£, I'm in the UK) then a series of
symbols replacing the numbers. Most numbers show as a white, rounded
cornered square with a sort of T character inside, zeroes show as a
black, rounded cornered square with a crossed zero inside, some
others show as a double apostrophe in the white square. Decimal
points show OK.
When printed the numbers are replaced with punctuation characters,
not the symbols shown on the screen.
I'm developing on an Intel Mac Mini running 10.5.5. I've tried a few
older machines which all show the weird characters, they are mostly
running 10.4.11 and using PPC processors so I don't know if this is
a PPC or Tiger problem.
I have a few projects lined up that will probably run on Tiger
systems so I'd like to know if this is easily fixable or whether I
need to write my own cash formatting routine.
Ta.
Andy___
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Re: Quote in path name
It works for me. How is the string for path getting created? Cheers, Chuck - Original Message From: David Blanton [EMAIL PROTECTED] To: Cocoa-dev List cocoa-dev@lists.apple.com Sent: Tuesday, December 9, 2008 10:32:19 AM Subject: Quote in path name The following returns a nil image with a path of lg002025-Santa.tif NSImage *image = [[NSImage alloc] initWithContentsOfFile:path]; bool ok = [image isValid]; but returns a valid image if the path is lg002025-Santa.tif so how can the finder allow in the name but NSImage burps on ? David Blanton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/acharlieblue%40yahoo.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
NSArrayController with a base class
Hi all, I'm looking for documentation/tutorial/pointers on how to handle the situation when an NSArrayController is managing an NSMutableArray which will contain multiple types of objects but all of which have the same base class. So the NSArrayController's Object Controller Class Name is actually a base class. Then when a user selects an item in the list, depending on the subclass type a different view will be displayed, each with different fields that will be views for the data in the subclass instance. Is this possible with controllers? Is it recommended/discouraged? Any pointers? Thanks, Todd ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
NSTextField in a sheet and focus
I have a sheet which contains an NSTextField. I need to allow users to enter line returns in the textfield, so I have implemented the functionality according to this apple note: http://developer.apple.com/qa/qa2006/qa1454.html This works great. However, if the user clicks out of the text field (onto the sheet, or another control), the textfield does not loose focus. The only way that it will loose focus is if another textfield is selected in the sheet. The problem is that, if the user gives the textfield focus, then they can no longer hit the return key to submit / accept the sheet (return is set as the sheets OK button key equivalent). Has anyone run into this before? If the textfield would loose focus when the user clicks out of it, I would not have a problem. I looked at NSTextView, but it also has the same focus issues. Anyone have any thoughts on possible solutions? mike ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Development workflows for signed code?
On Dec 9, 2008, at 6:36 AM, Chris Suter wrote: By the way, you should post code signing questions to the apple-cdsa list rather than the Cocoa list as you'll get a better response there. Thanks for that. I did look for a more focused list, but I guess that acronym didn't catch my eye. -==- Jack Repenning [EMAIL PROTECTED] Project Owner SCPlugin http://scplugin.tigris.org Subversion for the rest of OS X ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
NSTextField + Drag'n'Drop
I'm trying to subclass NSTextField so that it accepts dragged directory from the Finder... (I know it already does, but I need to modify the behavior slightly)... Instead of inserting the dragged file's path in the current text of the text field, I need to replace the whole textfield's text with the newly dragged file's path... also, I need to accept directory only, dragged files will not be accepted... Normally I wouldn't have any problems doing it with a custom NSView, however, since NSTextField already has a default drag and drop behavior, are there any special considerations? Also, are those default drag/drop behaviors implemented in NSTextField or higher up the class hierarchy? (i.e. NSResponder or NSControl etc..)... which methods should I override (i.e. is it only draggingEntered: and performDragOpeation:, as I am doing with my custom NSViews?) Any information would be appreciated! Jean-Nicolas Jolivet [EMAIL PROTECTED] http://www.silverscripting.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Text Not Anti-Aliased In NSView
On Dec 9, 2008, at 8:21 AM, Chunk 1978 wrote: i have several views that are added and replaced by a main window using core animation... i've noticed that the text (label objects, checkbox text, etc.) in each view is not being anti-aliased. this link ( http://att.macrumors.com/attachment.php?attachmentid=147663d=1228770137 ) will show you an image displaying this problem. the window on the left is from within Interface Builder (anti-aliased text), the window on the right is the running build (text with aliasing). how can i solve this problem? it's kinda surprising that it's not anti-aliasing the text automatically. hopefully there's some option i'm just forgetting to check off. Assuming your text is always going to be drawn on top the window, the simple fix is to check the Draws Background property of your text field in IB, and then choose the windowBackgroundColor from the Developer palette in the color picker. What's going on is this: the text is (normally) antialiased, but what is not active is subpixel antialiasing, which is what Quartz calls font smoothing. The problem is that subpixel antialiasing requires that the text know the background color that it is drawing onto at the time it is drawn. But CoreAnimation renders everything into separate layers, and then composites them all together. -Peter ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Multithreading and Mach ports
Reference: http://developer.apple.com/documentation/Cocoa/Conceptual/Multithreading/RunLoopManagement/chapter_6_section_5.html#/ /apple_ref/doc/uid/1057i-CH16-SW7 I've got several questions since I'm just starting to investigate Mach Ports. 1) Why is +LaunchThreadWithPort: so designated, ie, a class method. It seems to me that as far as the specific code listings presented, a class method is not required? For example, [workerObj sendCheckinMessage:distantPort] could be replaced with [self sendCheckinMessage:distantPort] if LaunchThreadWithPort would be changed to an instance method. 2) Maybe the real question #1 is: What exactly is the object in the background thread, named workerObj ?? 3) I've saved my most general question to last, at least for this trip: currently when I enter my method to start up my background thread or threads, I simply call (several times if I have multiple threads: [NSThread detachNewThreadSelector:@selector(bgCalcThread:) toTarget:self withObject:nil] If I have multiple background threads, I can use a NSMutableDictionary with multiple keys for inter-thread communication So, what do Mach Ports give me that the above doesn't? John Love Touch the Future! Teach! ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Quote in path name
Can you not recreate the bug in testing or identify the code where the possibly faulty path variable is created? Cheers, Chuck - Original Message From: David Blanton [EMAIL PROTECTED] To: Charles Steinman [EMAIL PROTECTED] Sent: Tuesday, December 9, 2008 11:50:26 AM Subject: Re: Quote in path name I don't know, a user of the app is creating the path name. This came in to me as a bug from the user. On Dec 9, 2008, at 12:23 PM, Charles Steinman wrote: It works for me. How is the string for path getting created? Cheers, Chuck - Original Message From: David Blanton To: Cocoa-dev List Sent: Tuesday, December 9, 2008 10:32:19 AM Subject: Quote in path name The following returns a nil image with a path of lg002025-Santa.tif NSImage *image = [[NSImage alloc] initWithContentsOfFile:path]; bool ok = [image isValid]; but returns a valid image if the path is lg002025-Santa.tif so how can the finder allow in the name but NSImage burps on ? David Blanton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/acharlieblue% 40yahoo.com This email sent to [EMAIL PROTECTED] David Blanton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Multithreading and Mach ports
Le 9 déc. 08 à 21:36, John Love a écrit : Reference: http://developer.apple.com/documentation/Cocoa/Conceptual/Multithreading/RunLoopManagement/chapter_6_section_5.html#/ /apple_ref/doc/uid/1057i-CH16-SW7 I've got several questions since I'm just starting to investigate Mach Ports. 1) Why is +LaunchThreadWithPort: so designated, ie, a class method. It seems to me that as far as the specific code listings presented, a class method is not required? For example, [workerObj sendCheckinMessage:distantPort] could be replaced with [self sendCheckinMessage:distantPort] if LaunchThreadWithPort would be changed to an instance method. 2) Maybe the real question #1 is: What exactly is the object in the background thread, named workerObj ?? An arbitrary object that perform some long works that should be execute in a background thread. Worker is a very common term in multithreading programming. 3) I've saved my most general question to last, at least for this trip: currently when I enter my method to start up my background thread or threads, I simply call (several times if I have multiple threads: [NSThread detachNewThreadSelector:@selector(bgCalcThread:) toTarget:self withObject:nil] If I have multiple background threads, I can use a NSMutableDictionary with multiple keys for inter-thread communication I think I miss something in the NSDictionary reference. I though it was not thread safe, and I never saw any reference to synchronisation or communication methods. What do you mean by using dictionary for inter thread communication ? So, what do Mach Ports give me that the above doesn't? A channel to send arbitrary message to another thread (of course, it can also be done using performOnThread methods). ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Setting company checkbox programatically in an AddressBook
I am having a problem setting the Checkbox to show the address book item is for a company. It seems to crash settig the value. What am I doing wrong? // we need to create this address item addressItem = [[[ABPerson alloc] init] autorelease]; [addressItem setValue:NSLocalizedString(@ADDRESS_ITEM_NAME, nil) forProperty:kABOrganizationProperty]; ABMutableMultiValue* emailList = [[ABMutableMultiValue alloc] init]; [emailList insertValue:NSLocalizedString(@OTHER_EMAIL_VALUE, nil) withLabel:NSLocalizedString(@OTHER_EMAIL_NAME, nil) atIndex:0]; [addressItem setValue:emailList forProperty:kABEmailProperty]; int personFlags = [[addressItem valueForProperty:kABPersonFlags] intValue]; personFlags = (kABShowAsMask kABShowAsCompany); [addressItem removeValueForProperty:kABPersonFlags]; [addressItem setValue:[[NSNumber numberWithInt:personFlags] stringValue] Crashes HERE forProperty:kABPersonFlags]; [[ABAddressBook sharedAddressBook] addRecord:addressItem]; [[ABAddressBook sharedAddressBook] save]; If I take this line out everythign works fine I don't get it this should be so simple... Thanks for any help in advance. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Creating a window when pressing a button
In my application, I have to open a form window when a user press a button. It is somewhat similar to Apple Mail. In Apple Mail, if you click New Message button from the toolbar, a New Message window is appeared. For now, what I did was something like this: In IB, I added a window (or a panel), and the associated button shows the window by using makeKeyAndOrderFront method when pressed. However, I realized it is not what I want. In this case, a window is already created, and the button only shows or hides the window. What I want is really creating a window when a user presses the button, so that the user can creates multiple windows by pressing the button. I wonder how can I do this. The window will contain form fields to get values for Core Data models. 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 [EMAIL PROTECTED]
Re: Setting company checkbox programatically in an AddressBook
On Dec 9, 2008, at 2:18 PM, development2 wrote: int personFlags = [[addressItem valueForProperty:kABPersonFlags] intValue]; That should be an NSInteger, not an int, and you should use - integerValue instead. personFlags = (kABShowAsMask kABShowAsCompany); That should be one ampersand, not two. [addressItem removeValueForProperty:kABPersonFlags]; [addressItem setValue:[[NSNumber numberWithInt:personFlags] stringValue] Crashes HERE forProperty:kABPersonFlags]; Why are you setting a string in that property? Remove the -stringValue and change the +numberWithInt: to +numberWithInteger: and it ought to work. Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Setting company checkbox programatically in an AddressBook
On Dec 9, 2008, at 2:31 PM, Nick Zitzmann wrote: On Dec 9, 2008, at 2:18 PM, development2 wrote: int personFlags = [[addressItem valueForProperty:kABPersonFlags] intValue]; That should be an NSInteger, not an int, and you should use - integerValue instead. Yeah thanks, saw that in the docs but forgot about it. personFlags = (kABShowAsMask kABShowAsCompany); That should be one ampersand, not two. Yeah I had changed that right after I sent the email out when I saw it was wrong. [addressItem removeValueForProperty:kABPersonFlags]; [addressItem setValue:[[NSNumber numberWithInt:personFlags] stringValue] Crashes HERE forProperty:kABPersonFlags]; Why are you setting a string in that property? Remove the - stringValue and change the +numberWithInt: to +numberWithInteger: and it ought to work. Well I was under the impression that all the property values you get back form valueForProperty where strings. I stand corrected. It works great now. Thanks much. Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Cocoaheads Lake Forest (92630) meeting 11/12/2008 at 7 pm on Using and optimizing Core Data in a commercial application
Hello, all, CocoaHeads Lake Forest will be meeting on the second Wednesday in December, 12/10, from 7 to 9 PM. We will meet in our usual location at the Orange County Public Library (El Toro) community room, 24672 Raymond Way, Lake Forest, CA 92630. Peter Hosey, one of the developers of the instant-messaging client Adium, will show us the reasons and steps to add unit tests to Cocoa applications. I would again like to extend my own personal thanks as well as the groups for the guest speakers we have been having. It is greatly appreciated Bring your comments, your books, and your bugs, and we will leap right in. As always, details can be found on the cocoaheads web site at www.cocoaheads.org. Thanks go to O'Reilly Media for providing us one of their books as a door prize. They have also provided us a user group discount, and are willing to send review copies of their books. Note: if you receive this directly from me, and no longer wish to, please reply offlist, and I will pull you from future mailings. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Correction: Cocoaheads Lake Forest (92630) meeting 12/10/2008 at 7 pm on Adding Unit Tests to a Cocoa Application
Please note corrected subject. Hello, all, CocoaHeads Lake Forest will be meeting on the second Wednesday in December, 12/10, from 7 to 9 PM. We will meet in our usual location at the Orange County Public Library (El Toro) community room, 24672 Raymond Way, Lake Forest, CA 92630. Peter Hosey, one of the developers of the instant-messaging client Adium, will show us the reasons and steps to add unit tests to Cocoa applications. I would again like to extend my own personal thanks as well as the groups for the guest speakers we have been having. It is greatly appreciated Bring your comments, your books, and your bugs, and we will leap right in. As always, details can be found on the cocoaheads web site at www.cocoaheads.org. Thanks go to O'Reilly Media for providing us one of their books as a door prize. They have also provided us a user group discount, and are willing to send review copies of their books. Note: if you receive this directly from me, and no longer wish ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
NSUserDefaults and valueForKeyPath ?
I've been busy adding some structure to the NSUserDefaults in my app. So I would have a dictionary like 'generalPrefs' with some key/value pairs, separate from 'otherPrefs' etc. Now I wonder why the following doesn't work: [[NSUserDefaultsController sharedUserDefaultsController] valueForKeyPath: @values.generalPrefs.numberOfPoints] while this does work: [[NSUserDefaultsController sharedUserDefaultsController] valueForKeyPath: @values.generalPrefs], after which generalPrefs can be referenced. Am I missing some elementary KVC or is there something special about the user defaults? Thanks for your time, Arthur ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
How to detect a paste request for file copy/paste?
I want to implement a delayed file paste feature for file copy/paste. When I first put file lists into the clipboard, the files are actually not existing yet (in another unmapped network place). These files will only be created after got the paste request. So my question is how to detect the paste request? I tried to implement NSFilesPromisePboardType for copy/paste, but never work. So my question is, after I put something into pasteboard, how can I get notification when another application does paste? Here is my test code: NSPasteboard *pboard = [NSPasteboard generalPasteboard]; NSMutableArray *types = [[NSMutableArray alloc] init]; [types addObject:NSFilesPromisePboardType]; [pboard declareTypes:types owner:self]; [types release]; I also implemented namesOfPromisedFilesDroppedAtDestination, which just provide the file path. After I run, the paste item with both Finder and PasteboardKeeper is never highlighted, so I can not paste. If I click 'Show clipboard', it shows nothing in the window, and show 'Clipboard contents: unknown' in the bottom status bar. I also tried first put NSFilenamesPboardType into pboard, and implemented pasteboard:provideDataForType:, and still nothing happen. So my question is: 1. Is there any promised file copy/paste? 2. How can I get paste notification? Can I get destination path then I can write files directly to destination like promised DnD did? Thanks for any help. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Accessing NSKeyedArchiver's archivedDataWithRootObject by name
On Tue, Dec 9, 2008 at 1:17 PM, Jim Turner [EMAIL PROTECTED] wrote: I have a situation where I'm archiving an array of objects via NSKeyedArchiver's archivedDataWithRootObject: and later needing to set a delegate on the NSKeyedUnarchiver that decodes it. The documentation is a bit unclear on how one starts the unarchive process when a NSKeyedUnarchiver is created on an archive where you don't know, for certain, the keys it contains. So my question... is this legitimate? NSKeyedUnarchiver *_keyedUnarchiver = [[[NSKeyedUnarchiver alloc] initForReadingWithData:archivedData] autorelease]; [_keyedUnarchiver setDelegate:self]; NSMutableArray *archivedArray = [_keyedUnarchiver decodeObjectForKey:@root]; [_keyedUnarchiver finishDecoding]; It works, but I always question things when I hard-code a string for something. Will 'root' always be the key that represents the root object? If I could do something like [NSKeyedUnarchiver unarchiveObjectWithData:delegate:], that would be better than perfect. This is an interesting question. NSArchiver describes exactly how the root object stuff works in terms of the rest, but NSKeyedArchiver doesn't. I would file a bug, at least to get it documented. However, one of the painful and pleasurable thing about stuff like NSCoder is that it essentially has to remain forward and backward compatible for eternity. An NSKeyedArchiver running on 10.7 must produce an archive which can be read on 10.2. This sort of thing presumably couldn't be changed without breaking 10.2 or some other past OS, so uncomfortable as it may be, if it works today it ought to keep working forever. Mike ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Quote in path name
Ok, my problem! We have some C++ code that preprocess our paths (for our reasons) and it was REMOVING the , duh, sorry! But I did learn something. Some names come in with some UTF8 encoding and those were a problem until I realized stringWithUTF8Encoding. On Dec 9, 2008, at 1:45 PM, Charles Steinman wrote: Can you not recreate the bug in testing or identify the code where the possibly faulty path variable is created? Cheers, Chuck - Original Message From: David Blanton [EMAIL PROTECTED] To: Charles Steinman [EMAIL PROTECTED] Sent: Tuesday, December 9, 2008 11:50:26 AM Subject: Re: Quote in path name I don't know, a user of the app is creating the path name. This came in to me as a bug from the user. On Dec 9, 2008, at 12:23 PM, Charles Steinman wrote: It works for me. How is the string for path getting created? Cheers, Chuck - Original Message From: David Blanton To: Cocoa-dev List Sent: Tuesday, December 9, 2008 10:32:19 AM Subject: Quote in path name The following returns a nil image with a path of lg002025-Santa.tif NSImage *image = [[NSImage alloc] initWithContentsOfFile:path]; bool ok = [image isValid]; but returns a valid image if the path is lg002025-Santa.tif so how can the finder allow in the name but NSImage burps on ? David Blanton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/acharlieblue% 40yahoo.com This email sent to [EMAIL PROTECTED] David Blanton David Blanton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How Can I Notify DrawRect Method?
Even if it were slower, contorting the code like this without having profiled the code and demonstrated that this is in fact a significant slowdown is bad practice. I disagree. Certainly it's profile first, but to have a view that reads a simple property from user defaults every time it draws requires more overhead than using an instance variable. Especially when you're using an NSColor object which must be properly archived and unarchived. Imagine adding complexity to this view and using multiple values like this per draw cycle, and having to draw a whole bunch of stuff. Directly reading colors from user defaults is suddenly a whole lot more expensive. It doesn't matter much for the simple case the OP presented, but it certainly does for a custom view that does heavy drawing, especially if it's involved in an animation. -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Another NSOutlineView question
On 10 Dec 2008, at 3:34 am, Corbin Dunn wrote:
Le Dec 9, 2008 à 12:40 AM, Volker in Lists a écrit :
Hi,
you should be able to detect a double click and call a method then
that either temporarily allows the selection or directly starts the
edit mode. I do have a similar setup - don't do editing, but I use
the double click action via bindings to attach notes to such an
unselectable item.
This approach may work, but it will give some undesired UI; this app
would the only be editable on double clicking, while other apps edit
on single-click (ala Leopard NSTableView and Finder).
You want to use this delegate method:
/* Optional - Custom tracking support
It is possible to control the ability to track a cell or not.
Normally, only selectable or selected cells can be tracked. If you
implement this method, cells which are not selectable or selected
can be tracked, and vice-versa. For instance, this allows you to
have an NSButtonCell in a table which does not change the selection,
but can still be clicked on and tracked.
*/
- (BOOL)tableView:(NSTableView *)tableView shouldTrackCell:(NSCell
*)cell forTableColumn:(NSTableColumn *)tableColumn row:
(NSInteger)row AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER;
Return YES for your cell, and it should be trackable, and hence
editable...
corbin
Hth,
volker
Am 09.12.2008 um 06:55 schrieb Graham Cox:
In my NSOutlineView, I disallow selection of group items by
implementing the delegate method -outlineView:shouldSelectItem:,
which works fine, but I still want to be able to edit the titles
of group items. The above method prevents this also.
How can I prevent selection of the the item but still allow
editing of its title string?
tia,
OK, I added that method (in its outlineView version) to my delegate
and I'm simply returning YES always. I have verified that the method
is being called when I click on the view.
Unfortunately, it's not doing anything useful for me - it always
changes the selection to the row I click before flipping checkbox
states for example, and I am still unable to edit the name of a group
item (which is being prevented from being selected as desired by the -
outlineView:shouldSelectItem: delegate method).
Any idea why this wouldn't work as advertised? These are the only two
delegate methods I'm implementing other than watching for selection
changes and item expansion notifications.
Code:
- (BOOL)outlineView:(NSOutlineView*) outlineView shouldSelectItem:
(id) item
{
#pragma unused(outlineView)
return [item layerMayBecomeActive];
}
- (BOOL)outlineView:(NSOutlineView*) oView shouldTrackCell:
(NSCell*) cell forTableColumn:(NSTableColumn*) tableColumn item:(id)
item
{
#pragma unused(oView,cell,tableColumn,item)
NSLog(@will track cell: %@, cell ); // this does log on each click
return YES;
}
Another question - is there a way to prevent the outline view from
making itself first responder when clicked unless absolutely
necessary, but without subclassing to override -acceptsFirstResponder?
thanks,
Graham
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problems debugging cocoa app w/ gdb
for sometime now (i don't remember when this started, possibly w/ leopard or 10.5.5 or the previous dev tools update), i've been getting a number of lines like the following on the debugger console when hitting breakpoints: warning: Trying to look up NSString in 'this' but 'this' is not an aggregate warning: Trying to look up description in 'this' but 'this' is not an aggregate warning: Trying to look up void in 'this' but 'this' is not an aggregate warning: Trying to look up _pbxgdb_objc_dynamic_type in 'this' but 'this' is not an aggregate warning: Trying to look up _pbxgdb_objc_compute_super_class_list in 'this' but 'this' is not an aggregate warning: Trying to look up _pbxgdb_cf_introspect_string in 'this' but 'this' is not an aggregate additionally, the variables pane of the debugger window (the top right pane) will show incomplete type as the value of many of my variables, usually scaler type (e.g., int, BOOL) or variables declared as: id. i've been working around this via assorted NSLog statements, but its getting really old. a clean build did not make the problem go away. i'm using 10.5.5 and objective-c++ and the latest release xcode tools. can anyone suggest how to fix this? thanx, ken ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
commitEditing and unrecognized selector
I've got a modal dialog with a couple of NSTextFields. Changes weren't getting saved, so I thought I'd better call commitEditing on the text field before retrieving its value with stringValue. But when I call commitEditing on the NSTextField it gives the error: -[NSTextField commitEditing]: unrecognized selector sent to instance But there are no warnings from the compiler that commitEditing is an invalid method. What am I doing wrong? Start your day with Yahoo!7 and win a Sony Bravia TV. Enter now http://au.docs.yahoo.com/homepageset/?p1=otherp2=aup3=tagline ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: commitEditing and unrecognized selector
On 10 Dec 2008, at 10:53 am, Chris Idou wrote: I've got a modal dialog with a couple of NSTextFields. Changes weren't getting saved, so I thought I'd better call commitEditing on the text field before retrieving its value with stringValue. But when I call commitEditing on the NSTextField it gives the error: -[NSTextField commitEditing]: unrecognized selector sent to instance But there are no warnings from the compiler that commitEditing is an invalid method. What am I doing wrong? Call -validateEditing instead, that should do what you want. You don't get a warning because -commitEditing is implemented as a category on NSObject, which means that NSTextField does effectively implement it. It's just that -commitEditing is not the same as - validateEditing. hth, 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 [EMAIL PROTECTED]
Re: Another NSOutlineView question
Le Dec 9, 2008 à 3:36 PM, Graham Cox a écrit :
On 10 Dec 2008, at 3:34 am, Corbin Dunn wrote:
Le Dec 9, 2008 à 12:40 AM, Volker in Lists a écrit :
Hi,
you should be able to detect a double click and call a method then
that either temporarily allows the selection or directly starts
the edit mode. I do have a similar setup - don't do editing, but I
use the double click action via bindings to attach notes to such
an unselectable item.
This approach may work, but it will give some undesired UI; this
app would the only be editable on double clicking, while other apps
edit on single-click (ala Leopard NSTableView and Finder).
You want to use this delegate method:
/* Optional - Custom tracking support
It is possible to control the ability to track a cell or not.
Normally, only selectable or selected cells can be tracked. If you
implement this method, cells which are not selectable or selected
can be tracked, and vice-versa. For instance, this allows you to
have an NSButtonCell in a table which does not change the
selection, but can still be clicked on and tracked.
*/
- (BOOL)tableView:(NSTableView *)tableView shouldTrackCell:(NSCell
*)cell forTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)
row AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER;
Return YES for your cell, and it should be trackable, and hence
editable...
corbin
Hth,
volker
Am 09.12.2008 um 06:55 schrieb Graham Cox:
In my NSOutlineView, I disallow selection of group items by
implementing the delegate method -outlineView:shouldSelectItem:,
which works fine, but I still want to be able to edit the titles
of group items. The above method prevents this also.
How can I prevent selection of the the item but still allow
editing of its title string?
tia,
OK, I added that method (in its outlineView version) to my delegate
and I'm simply returning YES always. I have verified that the method
is being called when I click on the view.
Unfortunately, it's not doing anything useful for me - it always
changes the selection to the row I click before flipping checkbox
states for example, and I am still unable to edit the name of a
group item (which is being prevented from being selected as desired
by the -outlineView:shouldSelectItem: delegate method).
Any idea why this wouldn't work as advertised? These are the only
two delegate methods I'm implementing other than watching for
selection changes and item expansion notifications.
Actually, I think the row does have to be selected to allow it to be
edited. Is there a reason you can't let it be selected at this point?
In other words, what are you trying to do? I may be able to offer
another solution.
Code:
- (BOOL)outlineView:(NSOutlineView*) outlineView
shouldSelectItem:(id) item
{
#pragma unused(outlineView)
return [item layerMayBecomeActive];
}
- (BOOL)outlineView:(NSOutlineView*) oView shouldTrackCell:
(NSCell*) cell forTableColumn:(NSTableColumn*) tableColumn item:(id)
item
{
#pragma unused(oView,cell,tableColumn,item)
NSLog(@will track cell: %@, cell ); // this does log on each click
return YES;
}
Another question - is there a way to prevent the outline view from
making itself first responder when clicked unless absolutely
necessary, but without subclassing to override -acceptsFirstResponder?
No; feel free to log a bug request asking for API to easily do this.
You want it to become first responder only in certain situations, like
editing? Something sort of like Mail's sidebar source list? Or do you
have something else in mind?
corbin
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Re: commitEditing and unrecognized selector
On 2008-Dec-9, at 18:53, Chris Idou wrote: I've got a modal dialog with a couple of NSTextFields. Changes weren't getting saved, so I thought I'd better call commitEditing on the text field before retrieving its value with stringValue. But when I call commitEditing on the NSTextField it gives the error: -[NSTextField commitEditing]: unrecognized selector sent to instance I had this same question a while ago: http://www.cocoabuilder.com/archive/message/cocoa/2008/8/8/215145 My conclusion is that the NSEditor informal protocol docs are wrong. Sean ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Another NSOutlineView question
On 10 Dec 2008, at 11:02 am, Corbin Dunn wrote: Actually, I think the row does have to be selected to allow it to be edited. Is there a reason you can't let it be selected at this point? In other words, what are you trying to do? I may be able to offer another solution. OK. The outline view represents a list of drawing layers. These can be organised hierarchically, hence the use of an outline view. The selected row is used to set the active layer, which is the one that user input is directed to. Layers and Layer groups have names, which the user can freely edit. However, Layer groups should not be selected because they can't be made active - that would be ambiguous because it implies that multiple layers could be the target of user input, thus, I prevent the group items from being selected. I did also try the idea of using an active marker in a separate table column to indicate the active layer and that worked alright, but much less obvious and visible than using the selection highlight for this. It also added another column to the table which I'd prefer to keep to a minimum width so that the user has the largest available working space in the window. (The layers table and the content are side-by-side in a split view). No; feel free to log a bug request asking for API to easily do this. You want it to become first responder only in certain situations, like editing? Something sort of like Mail's sidebar source list? Or do you have something else in mind? Almost exactly like that. In fact I'm using the source list style of view. I don't want it to steal focus from the main content view of the window unless it really needs it, like when editing, because it's a real nuisance for the user to have to keep refocusing the main content view when they just wanted to quickly activate a different layer. Subclassing is OK - I'm currently doing that anyway to hack around the row selection change on a checkbox click (When testing the suggested code I wasn't subclassing, just using a plain NSOutlineView) but if I can get the behaviour I want without subclassing I would obviously prefer that. thanks, 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 [EMAIL PROTECTED]
Symbol not found error
Hello, I am getting this error over and over again, whenever I do a new target in some place and then try to use it somewhere else. I have a dynamic library in a project that is used in another project. Then I added another dynamic library to the first one which is also used by the second project. The first lib links and the last won't link. The symbols are not found. From the gcc command line the -L option is the same because the dylib is in the same directory, a new -llibname flag is added for the new dylib (I dragged the lib file from the finder to the xcode tree). When I do an nm on the lib file, the symbols are there. I changed the install name to have the rpath, but is only relevant at run-time, right? Can't find out why this happens ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: performance problem with IORegistryEntryCreateCFProperties
First, I would like to thank all those who took the time to assist me with this issue. I have begun implementing the suggestions I received with good results. Modifying the code to use IORegistryEntryCreateCFProperty() rather than IORegistryEntryCreateCFProperties() resulted in CPU usage dropping from around 5% to .25%. I am sure that implementing the other suggestions will result in additional improvements. Why was the code implemented as it was? This is my first experience with OS X and I was mining working code. I took the approach that if it isn't broke don't fix it. But it was, so I will. Still, I am astonished as to the CPU overhead from calling IORegistryEntryCreateCFProperties() 3.5 times per second. As an Apple newbie, I am pleasantly surprised by the high quality of advice available in the developer forums... and no trolls! Thanks again. Brad ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How Can I Notify DrawRect Method?
On Dec 9, 2008, at 5:31 PM, I. Savant wrote: Even if it were slower, contorting the code like this without having profiled the code and demonstrated that this is in fact a significant slowdown is bad practice. I disagree. Certainly it's profile first, but to have a view that reads a simple property from user defaults every time it draws requires more overhead than using an instance variable. Especially when you're using an NSColor object which must be properly archived and unarchived. Imagine adding complexity to this view and using multiple values like this per draw cycle, and having to draw a whole bunch of stuff. Directly reading colors from user defaults is suddenly a whole lot more expensive. It doesn't matter much for the simple case the OP presented, but it certainly does for a custom view that does heavy drawing, especially if it's involved in an animation. Completely agree. For all my custom views, I always create and cache various drawing objects. These are often build-once objects. I usually build them lazily as well. e.g. I have an attribute named 'needsCreateColors'. When drawRect is called, it checks that flag and calls 'createColors' if needed. In some cases, other attributes, when set, will 'dirty' that flag followed by a setNeedsDisplay. Colors will then be re-fetched/created and then reused until the next change comes along. ___ Ricky A. Sharp mailto:[EMAIL PROTECTED] Instant Interactive(tm) http://www.instantinteractive.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Custom NSTableView cells
I could use a little guidance, please, on customizing cells for display in an NSTableView. (My app is Leopard-only.) I looked around the Apple docs and cocoadev, but didn't really find anything useful. Other pointers would be appreciated. My table has but one column, but each cell in that column is made up of 2 or more views. I think I have what I need as far as the cells go, but it's feeding them to the table view that's giving me problems. I know the required datasource methods are -numberOfRowsInTableView: and -tableView:objectValueForTableColumn:row:; the first is a no- brainer, the 2nd one stumps me. I assume I must implement -tableView:dataCellForTableColumn:row: to feed the table my custom cells for each row, right? What purpose then does the -tableView:objectValueForTableColumn:row: method serve? What should be returned from that if I'm already feeding ready-made cells from the other one? (This table is not editable, so I do not need to worry about -tableView:setObjectValue) The docs also say that my cells must properly implement - copyWithZone:, but I don't know what properly means in that context. Thanks! randy ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How Can I Notify DrawRect Method?
On Dec 9, 2008, at 8:09 PM, Ricky Sharp wrote: In some cases, other attributes, when set, will 'dirty' that flag followed by a setNeedsDisplay. Colors will then be re-fetched/ created and then reused until the next change comes along. Perfectly good example of timely optimization. The main reason (which I may not have communicated clearly) is because any unnecessary work at all is wasteful. Especially for mobile platforms (laptop and iPhone users will thank you for sparing their battery life ... or curse you for not caring). Asking for the shared user defaults instance, then asking it for a value, then unarchiving a more useful object from it, *then* using it to draw is certainly more work than caching the value only when it changes. It's not like it's performance tuning - it's *basic design*. -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: The thread that starts by NSTask didn't clear up
thanks for your reply. I means in my project, I want to use NSTask to launch an application, and send application some parameters, when use NSTask launch application that will add a new thread, right? and then send Apple event, when application received Apple event , it will quit, usually, the thread starts by NSTask will exit, because the application had quit, so I don't understand this, if use NSTask launch application more times, thread count will always increased, even if application had quit. I appreciate that any reply, thank you very much. --- Best Regards, Xianyu On Dec 10, 2008, at 12:44 AM, Etienne Guérard wrote: I started an AP use NSTask in my project ,when I loaded this AP, thread count will be increased ,after sending apple event to AP , and AP will exit, but thread count can't decrease. If I used this method load AP more times, thread count will increased, but there was no problem on tiger, just present leopard. Sorry for my poor english. I assume that AP acually means application. I understand that you send some Apple event to your application like a quit' event, right? You say that your application exit. OK. So what process the threads you're talking about belong to? Where does NSTask come into this? You have to be more precise to get an answer... EG This message and any attachments (the message) are confidential and intended solely for the addressee(s). Any unauthorised use or dissemination is prohibited. E-mails are susceptible to alteration. Neither DxO Labs nor any of its subsidiaries or affiliates shall be liable for the message if altered, changed or falsified. Ce message et toutes les pieces jointes (ci-apres le message) sont confidentiels et etablis a l'intention exclusive de ses destinataires. Toute utilisation ou diffusion non autorisee est interdite. Tout message electronique est susceptible d'alteration. DxO Labs et ses filiales declinent toute responsabilite au titre de ce message s'il a ete altere, modifie ou falsifie. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How Can I Notify DrawRect Method?
On Dec 9, 2008, at 7:25 PM, I. Savant wrote: On Dec 9, 2008, at 8:09 PM, Ricky Sharp wrote: In some cases, other attributes, when set, will 'dirty' that flag followed by a setNeedsDisplay. Colors will then be re-fetched/ created and then reused until the next change comes along. Perfectly good example of timely optimization. The main reason (which I may not have communicated clearly) is because any unnecessary work at all is wasteful. Especially for mobile platforms (laptop and iPhone users will thank you for sparing their battery life ... or curse you for not caring). Asking for the shared user defaults instance, then asking it for a value, then unarchiving a more useful object from it, *then* using it to draw is certainly more work than caching the value only when it changes. It's not like it's performance tuning - it's *basic design*. I suppose I'm from the camp of developers that started in the days of 8-bit CPUs with limited memory. My coding style tends to be very conscious of resources. I also have quite a bit of embedded experience, so that further reinforces that style. I've never seen situations where one wastes resources and doesn't at some point later have to refactor lots of code. This typically comes into play not only when going embedded, but when massively scaling your app upwards. ___ Ricky A. Sharp mailto:[EMAIL PROTECTED] Instant Interactive(tm) http://www.instantinteractive.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
-[NSManagedObject reallyIsDeleted]?
I searched the archives and didn't see anything relevant... The -[NSManagedObject isDeleted] method incorrectly returns false if the object has been deleted. This is in the documentation, despite the misleading name, but how do I find out if an NSManagedObject has really been deleted? Right now I'm putting exception handlers around - valueForKey: then calling it, since the method raises an exception if the object truly has been deleted, but this seems really, really wrong. Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Custom NSTableView cells
On 10 Dec 2008, at 12:21 pm, Randall Meadows wrote: I could use a little guidance, please, on customizing cells for display in an NSTableView. (My app is Leopard-only.) I looked around the Apple docs and cocoadev, but didn't really find anything useful. Other pointers would be appreciated. My table has but one column, but each cell in that column is made up of 2 or more views. I think I have what I need as far as the cells go, but it's feeding them to the table view that's giving me problems. The first thing to realise is that there is not one cell per row. There is only one cell per column. The single cell is moved from row to row as the table draws the rows. Once you realise that there is only one cell, things become a bit clearer. I'm not sure what you mean by each cell having two views. Do you literally mean NSViews, or are you using the term more loosely? AFAIK, it's really not feasible to embed actual NSViews in a cell. I know the required datasource methods are - numberOfRowsInTableView: and - tableView:objectValueForTableColumn:row:; the first is a no-brainer, the 2nd one stumps me. The second one gets the actual value for the row/column in question. Without this your table wouldn't draw anything because it doesn't know what to draw - the table is entirely generic and makes no assumptions about what the data content is. Because there is only one cell per column, this method is used whenever needed to give the data to the cell at the right time. I assume I must implement -tableView:dataCellForTableColumn:row: to feed the table my custom cells for each row, right? Not normally. This method is used when you have different cell types for each row, which is fairly uncommon. Typically you set the cell for the entire column in one go. You can do this in IB, or else programatically using [NSTableColumn setDataCell:] What purpose then does the -tableView:objectValueForTableColumn:row: method serve? What should be returned from that if I'm already feeding ready-made cells from the other one? (This table is not editable, so I do not need to worry about - tableView:setObjectValue) Don't feed cells per row unless you have to. Set the cell once for the column, then let the dataSource supply it on demand with its data. The docs also say that my cells must properly implement - copyWithZone:, but I don't know what properly means in that context. I guess it means that your copy method must return a real copy, not just retain and return self, since cells are considered always mutable - the table must be allowed to mutate the cell as needed with no side effects. hth, 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 [EMAIL PROTECTED]
Re: How Can I Notify DrawRect Method?
On 10 Dec 2008, at 12:25 pm, I. Savant wrote: Asking for the shared user defaults instance, then asking it for a value, then unarchiving a more useful object from it, *then* using it to draw is certainly more work than caching the value only when it changes. It's not like it's performance tuning - it's *basic design*. Just to clear something up for myself, doesn't NSUserDefaults cache everything internally in memory anyway? So really you're not unarchiving every time but just fetching an object from a dictionary, with no excessive performance overhead. I realise this is an implementation detail, but there's nothing in the docs that implies that the defaults values are unarchived from disk every time; why would they be? Surely that's why there is a required -synchronize method to force the contents on disk to be updated? --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 [EMAIL PROTECTED]
Re: Creating a window when pressing a button
Jushin, What I have done in the past with these sort of issues is either load the nib in the button pushed action or depending on how complicated your secondary window is, you could programatically create it like this. myWindow = [[NSWindow alloc] initWithContentRect:myRect styleMask:NSTitledWindowMask|NSResizableWindowMask backing:NSBackingStoreBuffered defer:YES]; Hope that gives you some ideas? Damien On 10/12/2008, at 7:54 AM, Jushin wrote: In my application, I have to open a form window when a user press a button. It is somewhat similar to Apple Mail. In Apple Mail, if you click New Message button from the toolbar, a New Message window is appeared. For now, what I did was something like this: In IB, I added a window (or a panel), and the associated button shows the window by using makeKeyAndOrderFront method when pressed. However, I realized it is not what I want. In this case, a window is already created, and the button only shows or hides the window. What I want is really creating a window when a user presses the button, so that the user can creates multiple windows by pressing the button. I wonder how can I do this. The window will contain form fields to get values for Core Data models. 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/damien.cooke%40internode.on.net This email sent to [EMAIL PROTECTED] I Remenber When Synthesizers were Analogue Programs were somthing you watched on T.V and a hard drive was from Sydney to Adelaide! ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: About NSAppleScriptErrorNumber = -2709
Thanks for your reply, Rob I found the following site had the same problem (using an Apple Script) to mine. http://lists.apple.com/archives/cocoa-dev/2003/Dec/msg00563.html In my App A I also use the Security Framework to authenticate the user to elevate privilege because my App B must be run by admin user. But I found the question is that even if I elevate privilege from A user(administrator) to the same A user, the Apple Script is still failed. Of course, when I modified my app A to make it unauthenticate user, the Apple Script works fine. so I'm not sure whether the Security Framework refuse to run an AppleScript or not. I don't know. 2008/12/9 Rob Keniger [EMAIL PROTECTED]: On 09/12/2008, at 4:55 PM, xiaobin wrote: But I only want to know why it doesn't work by using the apple script. My old applications writing in pure object-c works well in the apple script. I'm afraid that if something is damaged or others in my os, the error may be have influence on my other Apps. So anyone can give me a hit about the error. Good question, I don't know. Your code works perfectly for me here. -- 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/leptonw%40gmail.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Custom NSTableView cells
On Dec 9, 2008, at 6:21 PM, Randall Meadows wrote: I could use a little guidance, please, on customizing cells for display in an NSTableView. (My app is Leopard-only.) I looked around the Apple docs and cocoadev, but didn't really find anything useful. Other pointers would be appreciated. Take a look at this sample project: http://developer.apple.com/samplecode/PhotoSearch/ j o a r ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Creating a window when pressing a button
Jushin,
Here is an example loading from nib within an action method
- (IBAction)showMyNewWindow:(id)sender
{
NSLog(@Loading Nib);
if(!myNewWindow)
{
[NSBundle loadNibNamed:@MyNewWindow owner:self];
}
[myNewWindow makeKeyAndOrderFront:nil];
}
On 10/12/2008, at 12:16 PM, Damien Cooke wrote:
Jushin,
What I have done in the past with these sort of issues is either
load the nib in the button pushed action or depending on how
complicated your secondary window is, you could programatically
create it like this.
myWindow = [[NSWindow alloc] initWithContentRect:myRect
styleMask:NSTitledWindowMask|NSResizableWindowMask
backing:NSBackingStoreBuffered defer:YES];
Hope that gives you some ideas?
Damien
On 10/12/2008, at 7:54 AM, Jushin wrote:
In my application, I have to open a form window when a user press a
button.
It is somewhat similar to Apple Mail. In Apple Mail, if you click
New
Message button from the toolbar, a New Message window is appeared.
For now, what I did was something like this:
In IB, I added a window (or a panel), and the associated button shows
the window by using makeKeyAndOrderFront method when pressed.
However, I realized it is not what I want.
In this case, a window is already created, and the button only shows
or hides the window.
What I want is really creating a window when a user presses the
button, so that the user can creates multiple windows by pressing the
button.
I wonder how can I do this.
The window will contain form fields to get values for Core Data
models.
Thanks,
___
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Programs were somthing you watched on T.V
and a hard drive was from Sydney to Adelaide!
___
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and a hard drive was from Sydney to Adelaide!
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Re: NSArrayController with a base class
I’m doing something vaguely similar to this using a subclass of NSCollectionView, which sets up the collection view item differently depending on some attribute of the represented object it’s operating on. In this case, the class is just another attribute. NSArrayController being in the controller layer of MVC, it doesn’t care about the view, so it won’t be a problem for you. Rob On 9-Dec-08, at 2:24 PM, Todd Heberlein wrote: Hi all, I'm looking for documentation/tutorial/pointers on how to handle the situation when an NSArrayController is managing an NSMutableArray which will contain multiple types of objects but all of which have the same base class. So the NSArrayController's Object Controller Class Name is actually a base class. Then when a user selects an item in the list, depending on the subclass type a different view will be displayed, each with different fields that will be views for the data in the subclass instance. Is this possible with controllers? Is it recommended/discouraged? Any pointers? Thanks, Todd ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/rix.rob%40gmail.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Creating a window when pressing a button
It sounds like you might want to set up the window in a new nib file, which you load and unload with NSWindowController by creating a new NSWindowController instance and then calling -showWindow: on it. This also gives you a convenient location to start adding controller code for the contents of the new windows; you can subclass NSWindowController and add them to that object, which will be the File’s Owner of the new nib. Rob On 9-Dec-08, at 4:24 PM, Jushin wrote: In my application, I have to open a form window when a user press a button. It is somewhat similar to Apple Mail. In Apple Mail, if you click New Message button from the toolbar, a New Message window is appeared. For now, what I did was something like this: In IB, I added a window (or a panel), and the associated button shows the window by using makeKeyAndOrderFront method when pressed. However, I realized it is not what I want. In this case, a window is already created, and the button only shows or hides the window. What I want is really creating a window when a user presses the button, so that the user can creates multiple windows by pressing the button. I wonder how can I do this. The window will contain form fields to get values for Core Data models. 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/rix.rob%40gmail.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How Can I Notify DrawRect Method?
On Tue, Dec 9, 2008 at 6:31 PM, I. Savant [EMAIL PROTECTED] wrote: Even if it were slower, contorting the code like this without having profiled the code and demonstrated that this is in fact a significant slowdown is bad practice. I disagree. Certainly it's profile first, but to have a view that reads a simple property from user defaults every time it draws requires more overhead than using an instance variable. Especially when you're using an NSColor object which must be properly archived and unarchived. Of course it uses more overhead. But the point is that in the big picture, the increased vs decreased overhead is unimportant. It doesn't matter whether you spend 1ns fetching a color from an ivar vs 1us fetching a color from user defaults when you're going to subsequently spend 1ms drawing with that color. Imagine adding complexity to this view and using multiple values like this per draw cycle, and having to draw a whole bunch of stuff. Directly reading colors from user defaults is suddenly a whole lot more expensive. It doesn't matter much for the simple case the OP presented, but it certainly does for a custom view that does heavy drawing, especially if it's involved in an animation. Doing something repeatedly doesn't suddenly catapult marginal overhead into being important. If it takes a fraction of a percent in the simple case it'll take a fraction of a percent in the high-demand animated case too. Mike ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Symbol not found error
Daniel Luis dos Santos ([EMAIL PROTECTED]) on 2008-12-10 7:38 PM said: I am getting this error over and over again, whenever I do a new target in some place and then try to use it somewhere else. I have a dynamic library in a project that is used in another project. Then I added another dynamic library to the first one which is also used by the second project. The first lib links and the last won't link. The symbols are not found. From the gcc command line the -L option is the same because the dylib is in the same directory, a new -llibname flag is added for the new dylib (I dragged the lib file from the finder to the xcode tree). When I do an nm on the lib file, the symbols are there. I changed the install name to have the rpath, but is only relevant at run-time, right? Where's the Cocoa? Sounds like a question for the Xcode list Sean ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How Can I Notify DrawRect Method?
On Tue, Dec 9, 2008 at 8:25 PM, I. Savant [EMAIL PROTECTED] wrote: On Dec 9, 2008, at 8:09 PM, Ricky Sharp wrote: In some cases, other attributes, when set, will 'dirty' that flag followed by a setNeedsDisplay. Colors will then be re-fetched/created and then reused until the next change comes along. Perfectly good example of timely optimization. The main reason (which I may not have communicated clearly) is because any unnecessary work at all is wasteful. Especially for mobile platforms (laptop and iPhone users will thank you for sparing their battery life ... or curse you for not caring). This is a common response whenever I talk about not optimizing where it's not useful. But the thing is, trying to optimize every little thing makes your app *slower*. Imagine building a bridge to be as lightweight as possible. You *could* start by putting together plans for a bridge, then going over every bolt in the thing and shaving a bit of metal from each one. Of course you'll have gone through only a miniscule fraction of the bolts in the bridge before the people who hired you to build it get fed up and tell you to open it for traffic or get lost. Result: a very heavy bridge. Or you could forget about shaving the weight of the bolts, let them be heavier than needed, and concentrate on saving weight in the parts of the structure where it really counts. Use half the number of bolts and you've already done more than you ever could have before. Lighter materials, better supports, less redundancy, all will save you big. But you won't have time to find any of that if you spend your days shaving the unimportant parts off your bolts. So it is with programming: you build the fastest code by concentrating your optimization effort in the places where it can do the most good. Asking for the shared user defaults instance, then asking it for a value, then unarchiving a more useful object from it, *then* using it to draw is certainly more work than caching the value only when it changes. It's not like it's performance tuning - it's *basic design*. This is far from basic design. It's a pure implementation detail. It's the sort of thing you could come back and switch easily if you decided that it really was too slow when put up against the real world. It's just simple caching, which never needs to be designed in advance. Basic design would be things like using appropriate data structures, threading vs multiplexing, good data stores, and other such big-picture things. Mike ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How Can I Notify DrawRect Method?
I. Savant ([EMAIL PROTECTED]) on 2008-12-09 8:25 PM said: Asking for the shared user defaults instance, then asking it for a value, then unarchiving a more useful object from it, *then* using it to draw is certainly more work than caching the value only when it changes. It's not like it's performance tuning - it's *basic design*. Well, such things are never black and white, of course... but I just wanted to add that caching the value increases your application's memory use (admittedly only slightly in the case being discussed). But in the general case, by increasing memory use you: - can fit less in the CPU's cache - increase paging - etc. So it could actually lead to making your app slower! IMNSHO, best to write the least code possible, profile, and change as needed. Sean ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Another NSOutlineView question
On 10 Dec 2008, at 11:21 am, Graham Cox wrote: I did also try the idea of using an active marker in a separate table column to indicate the active layer and that worked alright, but much less obvious and visible than using the selection highlight for this. It also added another column to the table which I'd prefer to keep to a minimum width so that the user has the largest available working space in the window. (The layers table and the content are side-by-side in a split view). I've decided to go back to this approach, which avoids the problem altogether. I realised that using the highlight of the table to represent some state in my model is probably not such a great idea - it creates further problems like not being able to drag-reorder group items or pick up several items at once and dragging them into a group. The extra space needed is a slight downside but i can live with it... I suspect you were simply waiting for me to realise this ;-) cheers, 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 [EMAIL PROTECTED]
Re: How to use NSWorkspace?
You probable do not have AppKit include into you command line tool (under the 'External Frameworks and Libraries' folder) either add it to your project or look at LaunchServices which is easy to use, I have an example/wrapper on my web site. On 08/12/2008, at 11:07 , John Velman wrote: I'm missing something obvious, but I don't know what. I want to use NSWorkspace to open an application from a command line Foundation Tool. When I try to build the simplest thing, I get -- Undefined symbols: .objc_class_name_NSWorkspace, referenced from: [EMAIL PROTECTED]@[EMAIL PROTECTED] in LaunchMyMail.o ld: symbol(s) not found collect2: ld returned 1 exit status .objc_class_name_NSWorkspace, referenced from: [EMAIL PROTECTED]@[EMAIL PROTECTED] in LaunchMyMail.o ld: symbol(s) not found collect2: ld returned 1 exit status --- This happens whatever combination of the following imports I use: #import Foundation/Foundation.h #import ApplicationServices/ApplicationServices.h #import cocoa/Cocoa.h #import AppKit/AppKit.h This also happens for [[NSWorkspace sharedWorkspace] openFile:@SomeFile withApplication:@someApp]; Examples I find, don't seem to have any problem, but when I copy them onto my machine, they don't work. Thanks, John V. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/nathan_day%40mac.com This email sent to [EMAIL PROTECTED] Nathan Day Software Engineer home: +61 (0)2 9356 4874 work: +61 (0)2 8207 8241 mobile: +61 (0)4 3863 2407 ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How to launch window of the application on clicking of dock icon?
Thanks for the reply. My app is not a document based. I tried using the applicationDidBecomeActive to bring up my main window. It works only when my application is not active. i.e., when the MenuBar is occupied by other application. If i launch my app and close the window, the menu bar is still occupied with My App's menu bar. If noe i click on the dock icon, the window will not come up. I need the window to come up. -Arun KA On Wed, Dec 10, 2008 at 12:21 AM, Raleigh Ledet [EMAIL PROTECTED] wrote: This depends on your application. A document based application will automatically create a new untitled document for you. Which is generally what you want. If you app is really document based, its best to use the document based project template. If you app is not document based (say Mail or System preferences) then you have to consider what the expected / correct behavior is. Mail stays active when you close all of it's windows (checking email in the background). For this behavior use -applicationDidBecomeActive: to check if any widows are shown. If not, then show the expected window. For some (rare) apps on OS X, staying open is not expected / wanted. For example, System Preferences quits when you close its one and only window. This can be done via -applicationShouldTerminateAfterLastWindowClosed. If this is just a test app, you might want to try them all to get a feel for it. But for a real app, consider very carefully which behavior you want. -raleigh On 09 Dec,2008, at 9:02 AM, Arun wrote: Hi, I have created a simple application in cocoa. when it is ran, the main window appears and a default dock icon in the Dock. If i close the window, the dock icon still stays. But if i click on the dock icon then also the main window is visible. The only way i can see the main window is by quitting the app and launching it again. Is there any way in which upon clicking on the dock, the application window becomes visible. Thanks Arun KA ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/ledet%40apple.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Fix for Core Data + NSTreeController + NSOutlineView Crashes?
Has anyone ever found a way to use Core Data + NSTreeController + NSOutlineView without getting crashes during undo? Try setting an isLeaf leaf keypath on the tree controller in IB and add a Boolean isLeaf attribute in the data model. When I do that here, AbstractTree and similar examples no longer crash. The docs claim the leaf keypath is optional, and presumably that's the intended behavior - if you run some of these samples under 10.4, they seem to work fine. Under 10.5, though, it's a different story. Anyway, I've been working for a few months on a Core Data + NSTreeController (with a leaf keypath) + NSOutlineView project and never see this problem. When first working through the examples it was pretty disconcerting to see some of them crashing on Undo, but no leaf keypath seems to be the common denominator. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Multithreading and Mach ports
On 10/12/2008, at 07:36 , John Love wrote: Reference: http://developer.apple.com/documentation/Cocoa/Conceptual/Multithreading/RunLoopManagement/chapter_6_section_5.html#/ /apple_ref/doc/uid/1057i-CH16-SW7 I've got several questions since I'm just starting to investigate Mach Ports. 1) Why is +LaunchThreadWithPort: so designated, ie, a class method. It seems to me that as far as the specific code listings presented, a class method is not required? For example, [workerObj sendCheckinMessage:distantPort] could be replaced with [self sendCheckinMessage:distantPort] if LaunchThreadWithPort would be changed to an instance method. 2) Maybe the real question #1 is: What exactly is the object in the background thread, named workerObj ?? Class object can be used as any other object, it means they don't have to create an instance. It is the Class/Factory object MyWorkerClass you can treat them the same as any other object they are just created automatically for you. When you send a message you do not disquish between class objects and instance objects it is only when defining the class you use the +/- syntax to say which object(s) the method is for, the single class object or the multiple instance objects. I don't know if this helps but if you where to implement this kind of thing in C, then each class would have two struct definitions one for the class object and one for the instances that would contain a pointer to the class object. 3) I've saved my most general question to last, at least for this trip: currently when I enter my method to start up my background thread or threads, I simply call (several times if I have multiple threads: [NSThread detachNewThreadSelector:@selector(bgCalcThread:) toTarget:self withObject:nil] If I have multiple background threads, I can use a NSMutableDictionary with multiple keys for inter-thread communication As long as you use a lock yes, the point of this example is NSRunLoop and using NSPort, doing it this way mean you can have a thread wait for to be triggered on mutliple inputs source one of which is data through your port you could not do this with just passing data directly between two threads and using locks. One use for this prior to 10.4? is that you could use this to invoke methods in the main thread, my NDRunLoopMessager class did this and there was another on the net somewhere, there is now an NSObject method to do this for you, it probable uses this technique. You could not do this with a straight locks very well because you either have to use I timer so the runloop can keep polling until there is data for it to handle or it waits on a lock until the data is ready, holding up the GUI thread. So, what do Mach Ports give me that the above doesn't? John Love Touch the Future! Teach! ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/nathan_day%40mac.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Get Info via OS X UI on app with changed version data still shows old value, unless copied, then it works
Confused here about where Get Info on an app bundle gets its info... I'm sure this is basic stuff for you guys, but I'm relatively new at this. I have a directory called say AppDir with an application bundle in it called App1. I altered the various version strings and what-not in App1/Info.plist and App1/Resources/English.lproj/InfoPlist.strings to newer values (just edited and saved them as appropriate). I then did a Get Info on the App1 bundle and the General Version data still shows the _old_ data. Scratching my head as to why... Then I duplicated App1 to App1 copy and tried a Get Info on the App1 bundle in the duplicated directory. It shows the proper changed value in the General Version data. So the original I manipulated always seems to show the old version string data via Get Info but copies of the directory/app show the changed value. Anyone know what's going on here? Thanks in advance... Chris ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Design patterns: MVC, MVP, Passive View... where is Apple heading???
I have seen that version of the MVC pattern a lot where the View and Model are directly connected sometimes only one way, never really understood how it was supposed to work, my understanding is that with cocoa the model and view where never directly connected to each and it was the purpose of the controller classes act as an interface between the two, I guess the controller acts as a presenter and a controller. On 10/12/2008, at 00:36 , Karan, Cem (Civ, ARL/CISD) wrote: To lay the groundwork for this question, I'm going to state that I'm getting my definitions for MVC, MVP, and Passive View from the following: http://en.wikipedia.org/wiki/Model-view-controller http://en.wikipedia.org/wiki/Model_View_Presenter http://www.martinfowler.com/eaaDev/PassiveScreen.html Apple has always stated that it uses the MVC design pattern, but I noticed in OS X 10.5 we've gotten NSViewController, KVO, bindings, etc., objects that seem to behave more like the Passive View design pattern. Is this where Apple wants us to head? I want to plan out my code in a manner that plays as well as possible with Apple's chosen design patterns, which is why I want to know where Apple is headed. Thanks, Cem Karan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/nathan_day%40mac.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
