Re: Resource Fork - is this a good use/the right thing to do?
On 22 Apr '08, at 10:21 PM, Daniel DeCovnick wrote: Through a lot of thought experiments, I've come to the conclusion that the best place to save this sort of thing would be in the resource fork of the file being opened, but I could be totally off the mark there, and it's certainly an unorthodox thing to do. It would have been the right thing to do ten years ago. But these days resource forks are definitely a legacy feature and it would be a bad idea to write new software that relies on them. Have you looked at Extended Attributes? They're kind of the moral equivalent of resources, but they're newer, lighter-weight and better integrated into the filesystem. I don't know if there's any in-depth documentation, but you can start by reading the man pages for getxattr, setxattr, et al. Option 3. Add my own Metadata key and put an XML or similarly textual version of my graphical rep as the string. I have no idea whether or not this is possible. It seems like a bad abuse of the metadata system in any case. This seems reasonable. It's the same way that the Finder stores comments, which is analogous to what you're doing. Option 4. Wrap the file anyway and put an alias where it used to be. Seems like a bad idea. Yes, the target user base for this app would know what was going on, but it just seems wrong to hide people's stuff like that. Way too much software doesn't understand/resolve alias files, so this could cause trouble. A symlink would be more transparent, but I agree with you that messing with the location of people's files is a bad idea. —Jens 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]
Targeting nil in Interface Builder menu item
I have an Import command in my File menu that can apply to both the current document, and the app as a whole. I want it to send the - import action to the main window's document first, and if that doesn't exist, send it to the app. This seems like an application of an action sent to a nil responder, but I can't figure out how to set that up in IB. Suggestions? TIA, -- Rick ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Targeting nil in Interface Builder menu item
Just ctrl-drag the link between the item and the first responder object in the nib main window. First responder stands for nil. hth, G. On 23 Apr 2008, at 4:08 pm, Rick Mann wrote: I have an Import command in my File menu that can apply to both the current document, and the app as a whole. I want it to send the - import action to the main window's document first, and if that doesn't exist, send it to the app. This seems like an application of an action sent to a nil responder, but I can't figure out how to set that up in IB. Suggestions? TIA, -- Rick ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/graham.cox%40bigpond.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Safe frameworks for privileged tools?
That's a good table to know/have handy. Thanks. Okay, so LaunchServices is out as well. Is there *any* reliable way to know if a directory is a bundle or package without using NSWorkspace or LaunchServices? (I'm also going to have to omit Spotlight, since I can't be guaranteed it's enabled on a given machine.) -- m-s On 23 Apr, 2008, at 00:17, stephen joseph butler wrote: On Tue, Apr 22, 2008 at 10:52 PM, Michael Watson mikey- [EMAIL PROTECTED] wrote: I would like to use LaunchServices for this, but wasn't sure if it was kosher to link to ApplicationServices.framework from a privileged tool. Are there guidelines as to which frameworks should and shouldn't be used in privileged tools? I know nothing can ever be safe, but some are surely more dangerous than others, and I'd love some guidance. This is the definitive list of safe frameworks: http://developer.apple.com/technotes/tn2005/tn2083.html#SECFRAMEWORKCROSSREFERENCE Unfortunately, ApplicationServices is a no. However, this blog posts suggests some instances where it might be safe: http://unixjunkie.blogspot.com/2006/10/launchservices-from-root-daemon.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/mikey-san %40bungie.org This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Targeting nil in Interface Builder menu item
On Apr 22, 2008, at 11:13 PM, Graham Cox wrote: Just ctrl-drag the link between the item and the first responder object in the nib main window. First responder stands for nil. Well, now, that was obvious. For some reason, I was fixated on File's Owner, and I knew that wasn't right. I *knew* there was a First Responder object in there, but it just wasn't registering. I even figured out how to add the action to it. So, thank you for that. -- Rick ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Safe frameworks for privileged tools?
Does the target directory require privilege to see, or does it just happen to be used by a privileged tool? If the latter, you could always rely on a 2nd executable (without privilege) to examine the directory and return its results to your privileged program. Kevin G. That's a good table to know/have handy. Thanks. Okay, so LaunchServices is out as well. Is there *any* reliable way to know if a directory is a bundle or package without using NSWorkspace or LaunchServices? (I'm also going to have to omit Spotlight, since I can't be guaranteed it's enabled on a given machine.) -- m-s On 23 Apr, 2008, at 00:17, stephen joseph butler wrote: On Tue, Apr 22, 2008 at 10:52 PM, Michael Watson [EMAIL PROTECTED] wrote: I would like to use LaunchServices for this, but wasn't sure if it was kosher to link to ApplicationServices.framework from a privileged tool. Are there guidelines as to which frameworks should and shouldn't be used in privileged tools? I know nothing can ever be safe, but some are surely more dangerous than others, and I'd love some guidance. This is the definitive list of safe frameworks: http://developer.apple.com/technotes/tn2005/tn2083.html#SECFRAMEWORKCROSSREFERENCE Unfortunately, ApplicationServices is a no. However, this blog posts suggests some instances where it might be safe: http://unixjunkie.blogspot.com/2006/10/launchservices-from-root-daemon.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]
Re: Safe frameworks for privileged tools?
That's the hang-up. The target directory may require privilege to see. -- m-s On 23 Apr, 2008, at 02:42, Kevin Grant wrote: Does the target directory require privilege to see, or does it just happen to be used by a privileged tool? If the latter, you could always rely on a 2nd executable (without privilege) to examine the directory and return its results to your privileged program. Kevin G. That's a good table to know/have handy. Thanks. Okay, so LaunchServices is out as well. Is there *any* reliable way to know if a directory is a bundle or package without using NSWorkspace or LaunchServices? (I'm also going to have to omit Spotlight, since I can't be guaranteed it's enabled on a given machine.) -- m-s On 23 Apr, 2008, at 00:17, stephen joseph butler wrote: On Tue, Apr 22, 2008 at 10:52 PM, Michael Watson [EMAIL PROTECTED] wrote: I would like to use LaunchServices for this, but wasn't sure if it was kosher to link to ApplicationServices.framework from a privileged tool. Are there guidelines as to which frameworks should and shouldn't be used in privileged tools? I know nothing can ever be safe, but some are surely more dangerous than others, and I'd love some guidance. This is the definitive list of safe frameworks: http://developer.apple.com/technotes/tn2005/tn2083.html#SECFRAMEWORKCROSSREFERENCE Unfortunately, ApplicationServices is a no. However, this blog posts suggests some instances where it might be safe: http://unixjunkie.blogspot.com/2006/10/launchservices-from-root-daemon.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]
Re: Targeting nil in Interface Builder menu item
On 23 Apr 2008, at 4:36 pm, Rick Mann wrote: Well, now, that was obvious. For some reason, I was fixated on File's Owner, and I knew that wasn't right. I *knew* there was a First Responder object in there, but it just wasn't registering. Round these parts they call that a brainfart. Happens to me all the time ;-) So, thank you for that. You're welcome. 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]
Setting NSImage with overlay blend to NSImageView
Hey, I haven't used core graphics before and I'm looking to create an overlay blend mode effect with two images. I have a NSImageView with the image set to an NSImage. What are the general steps I would need to take to draw another image on top of it and set it as an overlay? The documentation Apple has is long and confusing - I can't seem to figure out how to even get a CGContextRef for the NSImageView. Thanks for your time ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Safe frameworks for privileged tools?
On Apr 23, 2008, at 1:18 AM, Michael Watson wrote: Okay, so LaunchServices is out as well. Is there *any* reliable way to know if a directory is a bundle or package without using NSWorkspace or LaunchServices? Here's some info: http://developer.apple.com/documentation/CoreFoundation/Conceptual/CFBundles/Concepts/BundlesAndFinder.html Unfortunately, there's still a lot of voodoo left in that. -Ken ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How to create shortcuts after installing the my package
Le 23 avr. 08 à 06:53, JanakiRam a écrit : Hi All, I'm porting a windows based application to Mac OS X. My application in windows will create desktop shortcut once we install. I really don't whether its mac standard to create desktop shortcut and dock icon once i install my cocoa application. Can any one suggest me whether its a standard procedure.or provide the necessary links/pointers. JanakiRam. A standard way to lets the user choose is to reveal the installed app in the Finder after the installation. So the user will be able to drop it in the Dock if needed. There is an option in Package Maker to do this. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Inserting my own Responder before App?
On Apr 23, 2008, at 1:44 AM, Rick Mann wrote: I've got a subclass of NSWindowController (a singleton in my app) inserted after the NSApplication in the responder chain, but is there any way for it to be the last responder before the app, such that Cocoa automatically makes things point first to my responder and then I can pass things on to the app? See this: http://developer.apple.com/documentation/Cocoa/Conceptual/EventOverview/EventArchitecture/chapter_2_section_6.html and also -[NSResponder setNextResponder:]. However, NSWindowController automatically uses that method to add itself as the next responder after the window it manages. That's illustrated in the above link. So, I don't think you need to do anything special. Cheers, Ken ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Resource Fork - is this a good use/the right thing to do?
On Apr 23, 2008, at 2:07 AM, Jens Alfke wrote: On 22 Apr '08, at 10:21 PM, Daniel DeCovnick wrote: Through a lot of thought experiments, I've come to the conclusion that the best place to save this sort of thing would be in the resource fork of the file being opened, but I could be totally off the mark there, and it's certainly an unorthodox thing to do. It would have been the right thing to do ten years ago. But these days resource forks are definitely a legacy feature and it would be a bad idea to write new software that relies on them. Have you looked at Extended Attributes? They're kind of the moral equivalent of resources, but they're newer, lighter-weight and better integrated into the filesystem. I don't know if there's any in-depth documentation, but you can start by reading the man pages for getxattr, setxattr, et al. Thanks for the suggestion. I've just looked through them now, as well as at the OSXBook (Mac OS X Internals: A Systems Approach by Amit Singh) info on that. In theory it looks good, but it's somewhat confusing. It looks like, at least in 10.4, except for the resource fork which is mapped as a fake xattr, you can only have inline attributes, with a length limit of 3802 bytes, and it would be quite common for my data to be significantly larger than that. Does anyone know if that's changed for 10.5? Option 3. Add my own Metadata key and put an XML or similarly textual version of my graphical rep as the string. I have no idea whether or not this is possible. It seems like a bad abuse of the metadata system in any case. This seems reasonable. It's the same way that the Finder stores comments, which is analogous to what you're doing. I dunno... it just seems that there's nowhere that the metadata system isn't integrated with Spotlight, and here, it wouldn't be. Seems to violate the spirit a bit. Still, it probably meets all the requirements. Thanks for the suggestions, Dan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Inserting my own Responder before App?
On Apr 23, 2008, at 12:37 AM, Ken Thomases wrote: See this: http://developer.apple.com/documentation/Cocoa/Conceptual/EventOverview/EventArchitecture/chapter_2_section_6.html and also -[NSResponder setNextResponder:]. However, NSWindowController automatically uses that method to add itself as the next responder after the window it manages. That's illustrated in the above link. So, I don't think you need to do anything special. I did all that; that's not really what I want. My NSWindowController subclass is not automatically hooked up (I tried). I am able to use the setNextResponder et al. to put it *after* the app, but I can't figure out how to set it up so it'll be *before* the app. What I have works, but kinda bugs me, because the app is more final than my controller. -- Rick ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: [ANN] TransactionKit, Lockless Multi-Reader, Multi-Writer Transaction Capable Hash Tables
On Apr 22, 2008, at 7:48 PM, John Engelhart wrote: snip *applause* ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Inserting my own Responder before App?
On Apr 23, 2008, at 12:46 AM, Rick Mann wrote: My NSWindowController subclass is not automatically hooked up (I tried). I am able to use the setNextResponder et al. to put it *after* the app, but I can't figure out how to set it up so it'll be *before* the app. Did you hook it up to be the delegate of the window? That's how it ends up in the responder chain. In this way it would appear *before* the app, which typically is what you want. If you want to add something *after* the app, don't use a window controller, use an application delegate. 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: Inserting my own Responder before App?
I've got a subclass of NSWindowController (a singleton in my app) inserted after the NSApplication in the responder chain, but is there any way for it to be the last responder before the app, such that Cocoa automatically makes things point first to my responder and then I can pass things on to the app? I don't know you actual goal, but maybe subclassing NSApplication is a solution? Mani -- http://www.mani.de iVolume - Loudness adjustment for iTunes. LittleSecrets - The encrypted notepad. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Inserting my own Responder before App?
Does your window know about the window controller and vice-versa? It's not clear how you're setting this up from your post, but you might need to tell the window about your window controller subclass: [window setWindowController:windowController]; Or the other way around? [windowController setWindow:window]; Or using brute force, the window controller can add itself to the responder chain after the window like this: [window setNextResponder:self]; If they know about each other, it shouldn't be necessary to explicitly set the window's next responder, though. Best, Cathy On Apr 23, 2008, at 9:46 AM, Rick Mann wrote: On Apr 23, 2008, at 12:37 AM, Ken Thomases wrote: See this: http://developer.apple.com/documentation/Cocoa/Conceptual/ EventOverview/EventArchitecture/chapter_2_section_6.html and also -[NSResponder setNextResponder:]. However, NSWindowController automatically uses that method to add itself as the next responder after the window it manages. That's illustrated in the above link. So, I don't think you need to do anything special. I did all that; that's not really what I want. My NSWindowController subclass is not automatically hooked up (I tried). I am able to use the setNextResponder et al. to put it *after* the app, but I can't figure out how to set it up so it'll be *before* the app. What I have works, but kinda bugs me, because the app is more final than my controller. -- Rick ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/catshive%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]
Uneditable NSTableView
Hello all, I'm trying to construct a Cocoa app that mimicks the Mail application, with the difference that it's not especially intended for mails : one the upper part a list of titles, and on the lower part exactly one titletext is shown. Double-clicking on a title in the upper part makes the corresponding text displayed in the lower part. I implement the upper part as a NSTableView subclass (which I call UneditableTableView), with one column and all rows uneditable (by setting the tableView:shouldEditTableColumn:row: method to always return NO in the delegate). That main app controller a signature of signature -(void)updateLowerPartAfterSelectionInUpperPart that makes the lower part display the text associated to the title just selected. Finally, in some place in my code I have the line [uneditableTableView setDoubleAction:@selector(updateLowerPartAfterSelectionInUpperPart:)]; Unfortunately, this doesn't work : although the rows are indeed uneditable and I can select any one of them, the updateLowerPartAfterSelectionInUpperPart method is never called when I double-click on a title. Does anyone have any idea of what I should do to fix this? TIA, Ewan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Uneditable NSTableView
Perhaps you have a good reason, but from your description, and being used to using Mail, I'd expect the lower part to display the content with a single click. Have you used setTarget: and setAction: to coordinate this double click event? Ian. On 23/04/2008, at 8:33 PM, Ewan Delanoy wrote: Hello all, I'm trying to construct a Cocoa app that mimicks the Mail application, with the difference that it's not especially intended for mails : one the upper part a list of titles, and on the lower part exactly one titletext is shown. Double-clicking on a title in the upper part makes the corresponding text displayed in the lower part. I implement the upper part as a NSTableView subclass (which I call UneditableTableView), with one column and all rows uneditable (by setting the tableView:shouldEditTableColumn:row: method to always return NO in the delegate). That main app controller a signature of signature - (void)updateLowerPartAfterSelectionInUpperPart that makes the lower part display the text associated to the title just selected. Finally, in some place in my code I have the line [uneditableTableView setDoubleAction:@selector(updateLowerPartAfterSelectionInUpperPart:)]; Unfortunately, this doesn't work : although the rows are indeed uneditable and I can select any one of them, the updateLowerPartAfterSelectionInUpperPart method is never called when I double-click on a title. Does anyone have any idea of what I should do to fix this? TIA , Ewan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/bianface%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: NSCollectionView and CoreData question
On 23/04/2008, at 12:08 AM, I. Savant wrote: Having set the 'content' binding to the arrangedObjects key in IB didn't produce a result though doing it programmatically has. Not sure why this would be. It depends. Since you have provided neither the exact bindings settings you're using nor the code you used to establish the binding manually, it's impossible to say. Further, with the NSView, is there a way of knowing which of the objects that are contained in the NSCollectionView is being drawn and further being able to get the data for that specific object? Not to sound like a broken record, but, have you *read* the documentation? Sure, the NSCollectionView / NSCollectionViewItem mechanism is a bit more challenging than your standard button or table, but not by much and it is fairly well-documented. See NSCollectionViewItem's documentation, paying particular attention to the phrase represented object. What I've been using as far as trying to get the represented object is first having the following as part of awakeFromNib in my controller object. [theView setDelegate:self]; [collectionView bind:@content toObject:self withKeyPath:@arrangedObjects options:nil]; [collectionView setItemPrototype:collectionViewItem]; repObject = [[NSManagedObject alloc] initWithEntity: [NSEntityDescription entityForName:@PodcastEpisodeTimestamp inManagedObjectContext:[selfmanagedObjectContext]] insertIntoManagedObjectContext:[self managedObjectContext]]; [collectionViewItem setRepresentedObject:repObject]; Though when I try to do something with what is returned by the represented object such as [[collectionViewItem representedObject] valueForKey:@length] This unfortunately returns nil. Is anyone aware of what I'm doing wrong with this? Thanks, Matthew Delves ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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 NSImage with overlay blend to NSImageView
Each view draw's into the window's graphic context. When focus is locked on a view the window's context is clipped and translated to the view so that drawing is limited to just the view's bounds. Basically all views in a window generally use the window's context (OpenGL views and whatnot have their own context). To get the context for the window use NSGraphicsContext's graphicsContextWithWindow: or NSWindow's graphicsContext to get the Cocoa context, then use the graphicsPort method to get a CGContextRef from it (docs say it returns a void*, but it is a CGContextRef). Also, I believe a window has a different graphics context for each thread that draws to it, so try and draw from the thread you got the CGContextRef from. Probably just keep drawing within the main thread to be safe. You might also look into CoreImage (CIImage, CIContext) if you need to support 10.4; many of the new CGContext blend modes are 10.5 only. On Apr 23, 2008, at 1:13 AM, Ross Oliver wrote: I haven't used core graphics before and I'm looking to create an overlay blend mode effect with two images. I have a NSImageView with the image set to an NSImage. What are the general steps I would need to take to draw another image on top of it and set it as an overlay? The documentation Apple has is long and confusing - I can't seem to figure out how to even get a CGContextRef for the NSImageView. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: NSScanner question
At first glance I'd say it's crashing because you're not checking if scanUpToCharactersFromSet:intoString: was successful and trying to add what may be an invalid object (foundStrings) to an array. On Apr 23, 2008, at 3:46 AM, Jason Wiggins wrote: I've been playing with NSScanner to cut a string eg: this is a test So is thistest from a search field into its components. ie. extract the quoted text to be placed into an array as well as the other components, pre and post quoted text. The other components will eventually be split with componentsSeparatedByString. My issue is that if I paste the above text into the search field, all is OK. But if I type in- test as a test case, it locks up and fails with The Debugger has exited due to signal 11 (SIGSEGV).The Debugger has exited due to signal 11 (SIGSEGV). ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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 retain Previous content view in cocoa
Not sure what you're really asking given there's no info other than the subject. If you're asking how to retain a previous window's content view, just call retain on it until you need it again. If you're talking about drawn areas in a view or window you can cache the area with NSWindow's cacheImageInRect: and restore the area with restoreCachedImage. If neither of these apply, I'd need a more specific question to offer better advice. On Apr 22, 2008, at 11:06 PM, KATHERASALA KALPANA wrote: (Nothing) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Carriage returns and NSXMLParser
Whitespace is preserved, not ignored. But in your example, the new line is in the attribute value, so I don't suppose XML cares too much what's between the quotation marks. So if you can obtain the value of the data attribute, and print the value to the console, does it come out with a space instead of the \n? Ian. On 23/04/2008, at 12:16 AM, Brad Peterson wrote: Hi, Have there been any recent changes to NSXMLParser with respect to carriage returns? I haven't noticed it previously, but I'm suddenly seeing a lot of cases where carriage returns embedded in data are returned as spaces by the parser. That is: record id=429 data=A sample\nrecord / Is read in as if it were: record id=429 data=A sample record / I know that whitespace is technically ignored in XML, but I didn't think it was necessarily discarded either. Is that the way it's supposed to be? Is there an option I can set to change that? Thanks!! Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/bianface%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: Uneditable NSTableView
On Apr 23, 2008, at 4:33 AM, Ewan Delanoy wrote: I have the line [uneditableTableView setDoubleAction:@selector(updateLowerPartAfterSelectionInUpperPart:)]; Unfortunately, this doesn't work : although the rows are indeed uneditable and I can select any one of them, the updateLowerPartAfterSelectionInUpperPart method is never called when I double-click on a title. Is your method really called updateLowerPartAfterSelectionInUpperPart? It should be updateLowerPartAfterSelectionInUpperPart:. I notice it was correct in the @selector(), but I thought I'd check anyway. --Andy ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Uneditable NSTableView
Good question -- if you want the double action to be called, you have to set the app controller to be the table view's target, not just its delegate. You can, of course, make the connection in IB; you don't have to use setTarget:. --Andy On Apr 23, 2008, at 5:22 AM, Ian Jackson wrote: Perhaps you have a good reason, but from your description, and being used to using Mail, I'd expect the lower part to display the content with a single click. Have you used setTarget: and setAction: to coordinate this double click event? Ian. On 23/04/2008, at 8:33 PM, Ewan Delanoy wrote: Hello all, I'm trying to construct a Cocoa app that mimicks the Mail application, with the difference that it's not especially intended for mails : one the upper part a list of titles, and on the lower part exactly one titletext is shown. Double-clicking on a title in the upper part makes the corresponding text displayed in the lower part. I implement the upper part as a NSTableView subclass (which I call UneditableTableView), with one column and all rows uneditable (by setting the tableView:shouldEditTableColumn:row: method to always return NO in the delegate). That main app controller a signature of signature - (void)updateLowerPartAfterSelectionInUpperPart that makes the lower part display the text associated to the title just selected. Finally, in some place in my code I have the line [uneditableTableView setDoubleAction :@selector(updateLowerPartAfterSelectionInUpperPart:)]; Unfortunately, this doesn't work : although the rows are indeed uneditable and I can select any one of them, the updateLowerPartAfterSelectionInUpperPart method is never called when I double-click on a title. Does anyone have any idea of what I should do to fix this? TIA , Ewan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/bianface%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/aglee%40mac.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Resource Fork - is this a good use/the right thing to do?
On 23/04/2008, at 5:41 PM, Daniel DeCovnick wrote: Thanks for the suggestion. I've just looked through them now, as well as at the OSXBook (Mac OS X Internals: A Systems Approach by Amit Singh) info on that. In theory it looks good, but it's somewhat confusing. It looks like, at least in 10.4, except for the resource fork which is mapped as a fake xattr, you can only have inline attributes, with a length limit of 3802 bytes, and it would be quite common for my data to be significantly larger than that. Does anyone know if that's changed for 10.5? As an alternative to storing the information with the file itself, could your application store an alias record to the file along with your custom data in a data store managed by your application? That way you don't need to modify the original files in any way. You can use BDAlias or one of the other Obj-C wrappers for the alias management code. -- Rob Keniger ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: [Ann] DMG Canvas
seems fine, cannot try it though:bzip2: (stdin): trailing garbage after EOF ignored the dmg won't mount. Is it me ? Raphael On Tue, Apr 22, 2008 at 11:58 PM, Ricky Sharp [EMAIL PROTECTED] wrote: On Apr 22, 2008, at 2:00 AM, Seth Willits wrote: Off topic, I admit, but y'all being fellow Cocoa developers, and having specifically written the app for us, I thought it fitting to post here. http://www.araelium.com/dmgcanvas/ Where was this a few months ago? :) I'll have to check this out as it looks very good. I recently chucked FileStorm (also due to numerous bugs). I currently use shell scripts (around hdiutil) and call them from Automator to create my DMGs. ___ 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/raphael.sebbe%40gmail.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Resource Fork - is this a good use/the right thing to do?
On 23/04/2008, at 5:41 PM, Daniel DeCovnick wrote: Thanks for the suggestion. I've just looked through them now, as well as at the OSXBook (Mac OS X Internals: A Systems Approach by Amit Singh) info on that. In theory it looks good, but it's somewhat confusing. It looks like, at least in 10.4, except for the resource fork which is mapped as a fake xattr, you can only have inline attributes, with a length limit of 3802 bytes, and it would be quite common for my data to be significantly larger than that. Does anyone know if that's changed for 10.5? I say, if using the resource fork works for you, go for it. Whatever disadvantages there might be are 1) theoretical, and 2) no worse than extended attributes. No sense bending over backward to try to get some supposedly superior solution to work not quite as well as the resource fork would. That's my two cents, anyway. Cheers, Ken ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Resource Fork - is this a good use/the right thing to do?
I'd second that. The OS (well, Finder) also adds things to the resource fork of files (custom icons, info about which app to open a file with when you changed it from the default etc). Just as long as you respect the existing contents this is exactly where you should put your data. On 23 Apr 2008, at 14:29, Ken Thomases wrote: On 23/04/2008, at 5:41 PM, Daniel DeCovnick wrote: Thanks for the suggestion. I've just looked through them now, as well as at the OSXBook (Mac OS X Internals: A Systems Approach by Amit Singh) info on that. In theory it looks good, but it's somewhat confusing. It looks like, at least in 10.4, except for the resource fork which is mapped as a fake xattr, you can only have inline attributes, with a length limit of 3802 bytes, and it would be quite common for my data to be significantly larger than that. Does anyone know if that's changed for 10.5? I say, if using the resource fork works for you, go for it. Whatever disadvantages there might be are 1) theoretical, and 2) no worse than extended attributes. No sense bending over backward to try to get some supposedly superior solution to work not quite as well as the resource fork would. That's my two cents, anyway. Cheers, 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/matt.gough%40agfa.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: Complex data for webservices
Hi Jeff, and thanks for answering :-) On Apr 21, 2008, at 3:30 PM, Jeff LaMarche wrote: I'm no expert on Web Services on Objective-C, but I've been playing around with them a bit. One thing that I have discovered is that CFTypeRef is not _always_ a dictionary. In some cases, it wants a string. Thanks for the tip! :-) Without knowing what your web service looks like I don't think I can be any more helpful than that. Have you used the debugger to step through the setParameters: method while it's running? You might be able to tell what it's looking for by doing that. That was how I figured out to pass in a space delimited list as an NSString rather than a dictionary. I've made a dummy webservice that looks pretty much like the one I use: http://78.157.102.46:2234/DummyWS/Service1.asmx?WSDL So to generate my stubs I do: WSMakeStubs -x ObjC -name DummyStubs - url http://78.157.102.46:2234/DummyWS/Service1.asmx?WSDL First of all, it generates the functions twice, so I need to delete half of them. :-I It also gives me five warnings saying warning: initialization discards qualifiers from pointer target type, but at least now I'm good to go. Then I make my method: NSString *testStr = (NSString*) [myService testString:[[NSDictionary alloc] init]]; NSLog(@testStr: %@, testStr); NSDictionary *testDict = (NSDictionary*) [myService testString: [[NSDictionary alloc] init]]; NSLog(@testDict count: %d, [testDict count]); When the method is called, there's a bit network activity, but the log sais: Apr 23 14:38:59 MBP SampleApp[1742]: testStr: (null) Apr 23 14:38:59 MBP SampleApp[1742]: testDict count: 0 Cheers Nik ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Resource Fork - is this a good use/the right thing to do?
On Apr 23, 2008, at 12:41 AM, Daniel DeCovnick wrote: On Apr 23, 2008, at 2:07 AM, Jens Alfke wrote: On 22 Apr '08, at 10:21 PM, Daniel DeCovnick wrote: Through a lot of thought experiments, I've come to the conclusion that the best place to save this sort of thing would be in the resource fork of the file being opened, but I could be totally off the mark there, and it's certainly an unorthodox thing to do. It would have been the right thing to do ten years ago. But these days resource forks are definitely a legacy feature and it would be a bad idea to write new software that relies on them. Have you looked at Extended Attributes? They're kind of the moral equivalent of resources, but they're newer, lighter-weight and better integrated into the filesystem. I don't know if there's any in-depth documentation, but you can start by reading the man pages for getxattr, setxattr, et al. Thanks for the suggestion. I've just looked through them now, as well as at the OSXBook (Mac OS X Internals: A Systems Approach by Amit Singh) info on that. In theory it looks good, but it's somewhat confusing. It looks like, at least in 10.4, except for the resource fork which is mapped as a fake xattr, you can only have inline attributes, with a length limit of 3802 bytes, and it would be quite common for my data to be significantly larger than that. Does anyone know if that's changed for 10.5? The limits aren't very well documented (or implemented), but you can avoid the limit by splitting it into multiple attributes. We save notes as extended attributes in Skim; this link is to a BSD licensed NSFileManager category for writing arbitrarily sized NSData as extended attributes by compressing it and then splitting it up if needed. http://skim-app.svn.sourceforge.net/viewvc/*checkout*/skim-app/trunk/NSFileManager_ExtendedAttributes.m It works great on HFS+, but there are some caveats: - creating a zip archive in Finder will destroy EA - creating a disk image of a file with hdiutil will destroy EA under some conditions - asr may lose EA (we had at least one report of install+migration failing) - various filesystems (e.g. AFP) have different size limits than HFS+ and IIRC the return value of the setxattr function won't tell you it failed in this case Lack of filesystem support will bite you with resource forks as well, but the first two are fixed in 10.5. It's still cleaner than messing with resource fork code, IMO, and for the common case it works very well. -- adam ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Removing subviews that are layer backed problem.
Hi Cocoa developers, I have a custom view (let's call this one the main view) which shows some UI controls and another custom subview which is layer backed (wantsLayer = YES). I created my own CAOpenGLLayer subclass to perform specific OpenGL drawing in it. The main view needs to change its content view according to some state. When I remove a content view which has a layer-backed subview, the layer does not disappear right away. Its stays there for 1 second and then disappear. Should it disappear as I remove its view? Thanks! MAthieu ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Resource Fork - is this a good use/the right thing to do?
On 4/23/08 1:21 AM, Daniel DeCovnick said: I'm writing an application that opens particular kinds of files, parses them, displays an editable graphical representation of the contents of a file, and saves the results of the changes to the file. However, some graphical changes don't result in changes to the original file, yet those changes need to be saved - a little bit analogous to the Finder saving the positions of icons in a window, but not changing the files themselves. This seems like a perfect use of package documents (a la .rtfd), except for one problem: the files I'm opening aren't mine, and should remain openable in other applications, so I can't wrap them up. I'd also really like to avoid making changes to the files themselves, at least the portions that their normal programs read. The Resource fork has been used for a long time for exactly that purpose. As others have said, extended attributes are another possibility. Both risk being clobbered by poorly written tools. Personally, I think a resource is a better idea. They're actually less likely to get clobbered as they have been around longer (you could even copy them to a Classic system, or 10.0, etc.). The Resource Manager is not deprecated and is even available in 64 bit (unlike other parts of Carbon). NDResourceFork provides a nice Cocoa wrapper over the C APIs. See: http://homepage.mac.com/nathan_day/pages/source.xml -- Sean McBride, B. Eng [EMAIL PROTECTED] Rogue Researchwww.rogue-research.com Mac Software Developer Montréal, Québec, Canada ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Carriage returns and NSXMLParser
--As of April 23, 2008 9:04:21 PM +1200, Ian Jackson is alleged to have said: Whitespace is preserved, not ignored. But in your example, the new line is in the attribute value, so I don't suppose XML cares too much what's between the quotation marks. So if you can obtain the value of the data attribute, and print the value to the console, does it come out with a space instead of the \n? --As for the rest, it is mine. To be more specific: XML considers whitespace significant inside element _content,_ but not within the elements themselves. NSXML* deal with this very close to the spec, as far as I can tell. So the behavior seen by the parent is normal, and could well happen with any compliant XML parser. Daniel T. Staal --- This email copyright the author. Unless otherwise noted, you are expressly allowed to retransmit, quote, or otherwise use the contents for non-commercial purposes. This copyright will expire 5 years after the author's death, or in 30 years, whichever is longer, unless such a period is in excess of local copyright law. --- ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Complex data for webservices
When I try to access your WSDL, I get: Server Error in '/DummyWS' Application. Generally, though, I don't believe the response from a web service is a dictionary - I believe it's usually a string and I'm wondering why you are sending an empty dictionary - it would seem like nil would be a better choice if you want to send without any data. Also, you are leaking memory there since your code will never release the dictionary you allocated in the first line of your method. You need to either release or autorelease when you are done with the dictionary - the stubs will retain it if they need to. Let's see, what else... You say there is some network activity, so why don't you try using tcpdump to see what is being passed back and forth. It would be something like this in a terminal window: sudo tcpdump -s 0 -v -A -i en1 port 80 Changing en1 to the adaptor you're using. Then run your script and you should see what communication with the web service. It's a good idea to close all your Safari windows so that no extraneous AJAX requests get sent by Safari during your run, or you can use Ethereal ( http://www.ethereal.com/ ), which lets you filter by application. It should become pretty obvious from the communication what your stubs are doing with the argument you give it, and what the response is. HTH Jeff On Apr 23, 2008, at 8:41 AM, Niklas Saers wrote: Hi Jeff, and thanks for answering :-) On Apr 21, 2008, at 3:30 PM, Jeff LaMarche wrote: I'm no expert on Web Services on Objective-C, but I've been playing around with them a bit. One thing that I have discovered is that CFTypeRef is not _always_ a dictionary. In some cases, it wants a string. Thanks for the tip! :-) Without knowing what your web service looks like I don't think I can be any more helpful than that. Have you used the debugger to step through the setParameters: method while it's running? You might be able to tell what it's looking for by doing that. That was how I figured out to pass in a space delimited list as an NSString rather than a dictionary. I've made a dummy webservice that looks pretty much like the one I use: http://78.157.102.46:2234/DummyWS/Service1.asmx?WSDL So to generate my stubs I do: WSMakeStubs -x ObjC -name DummyStubs - url http://78.157.102.46:2234/DummyWS/Service1.asmx?WSDL First of all, it generates the functions twice, so I need to delete half of them. :-I It also gives me five warnings saying warning: initialization discards qualifiers from pointer target type, but at least now I'm good to go. Then I make my method: NSString *testStr = (NSString*) [myService testString:[[NSDictionary alloc] init]]; NSLog(@testStr: %@, testStr); NSDictionary *testDict = (NSDictionary*) [myService testString: [[NSDictionary alloc] init]]; NSLog(@testDict count: %d, [testDict count]); When the method is called, there's a bit network activity, but the log sais: Apr 23 14:38:59 MBP SampleApp[1742]: testStr: (null) Apr 23 14:38:59 MBP SampleApp[1742]: testDict count: 0 Cheers Nik ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Uneditable NSTableView
Perhaps you have a good reason, but from your description, and being used to using Mail, I'd expect the lower part to display the content with a single click. The reason is, I know how to produce easily the double-click behaviour with Cocoa but not the (better) click behaviour Good question -- if you want the double action to be called, you have to set the app controller to be the table view's target, not just its delegate. You can, of course, make the connection in IB; you don't have to use setTarget:. I'm not quite sure what you mean by target here, so I'll be more specific about how I make my connections : -since my Cocoa project is relatively simple the app controller's job, instead of being treated by a separate class, is done directly by a NSDocument subclass called MyDocument. -The MyDocument instance acts as a data source for the UneditableTableView, (I tell that to IB as you say by making the data source connection with the mouse. I can see that this has been done correctly at runtime anyway because the table view's contents are what they should be). Also, MyDocument implements - (int)numberOfRowsInTableView:(NSTableView *)aTableView; - (id)tableView:(NSTableView *)aTableView objectValueForTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex; it does not implement - (void)tableView:(NSTableView *)aTableView setObjectValue:(id)anObject forTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndexnotnot because it does need to : the rows are uneditable. Lastly, as in this case the UneditableTableView's delegate does very little (I only need to write the - (BOOL)tableView:(NSTableView *)aTableView shouldEditTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex method) I indulged in making a new class called UneditableTableViewDelegate, (which I also instantiate in IB and I make the delegate connection in IB also) just for the pleasure of having a very short UneditableTableViewDelegate.m file (I was told that it is a better programming philosophy to make many short code files that few long ones, but perhaps Cocoa experts will tell me it is not a good thing to do in this case?) Ewan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Resource Fork - is this a good use/the right thing to do?
Another possibility is to write a short unique string (like a UUID) into an extended attribute, and then use that as a key into your own external data store, like a database or plist you put in some central place. A nice feature of this approach is that you only have to modify the file once, not every time your data changes. A drawback is that if the file is sent to somebody else, the information doesn't go with it. (Which, depending on what the info is, could be considered a benefit: people have gotten in trouble for forgetting about the metadata Word attaches to their documents.) —Jens 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: Uneditable NSTableView
on 4/23/08 8:41 AM, [EMAIL PROTECTED] purportedly said: Good question -- if you want the double action to be called, you have to set the app controller to be the table view's target, not just its delegate. You can, of course, make the connection in IB; you don't have to use setTarget:. I'm not quite sure what you mean by target here, so I'll be more specific about how I make my connections : The target is the object that your selector message will be sent to. How will your TableView know which object responds to the selector you give it? It's not magic... HTH, Keary Suska Esoteritech, Inc. Demystifying technology for your home or business ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Special handling of keystrokes in a window controller
My app has a number of input fields that are used to change light settings, camera x/y/z position, etc for a 3D view window. ALL these fields are numeric, and don't need to handle non number characters (they need to handle 0-9, +, -, ., and possibly E for scientific notation, although I'm not sure I need it.) I have added the method control:textView:doCommandBySelector: to my window controller, so I can intercept the up/down arrow keys when a text field is the key field, and increment/decrement the field value. My 3D view also has certain keystrokes that it handles. If the 3D view is the current first responder, the user can click + / - (with or without the shift key) to zoom in or out of the 3D view. i would really like to have keystrokes that will zoom in or out of the 3D view regardless of what field on my window is the current first responder. I couldn't use the plus or minus keys for this, because some of my input values can be negative, and the user needs to be able to type in a sign value in those fields. Right now, if one of the input fields is the first responder, the plus and minus keys go to that input field, changing the value of that field. It's confusing for the user. I could easily change my zoom in/zoom out keystrokes to be the bracket keys ([ ] with or without shift), or some other set of keys that are only used by the 3D view, but I need a way to intercept them. Is there a clean way for me to catch certain keystrokes globally for the window, and pass them to my 3D view, while letting others go to the current firstResponder? Duncan C ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: A cursor bug in DragItemAround example
Chances are, calling '[[self enclosingScrollView] setDocumentCursor:[NSCursor closedHandCursor]]' in 'mouseDown:' will fix the problem you're seeing. NSScrollView/NSClipView's way of changing the cursor conflicts with autoscrolling or drag-scrolling, but AFAIK there's no way of preventing that interference directly. This partially works. However, if you move the item off the visible part of scroll view and then move back, you'll find a arrowCursor instead of openHandCursor when cursor hovers on the item. It seems cursor problems pervade Cocoa applications and Apple just ignores them:( ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Failure on unarchiving a NSBezierPath
I was building a very simple drawing application, but met problems
when reading the file saved by my application.
The two functions as to archiving/unarchiving are as follows:
- (NSData *)dataOfType:(NSString *)typeName error:(NSError **)outError
{
return [NSKeyedArchiver archivedDataWithRootObject:view.drawing];
}
- (BOOL)readFromData:(NSData *)data ofType:(NSString *)typeName
error:(NSError **)outError
{
NSBezierPath *drawing = [NSKeyedUnarchiver
unarchiveObjectWithData:data]; //*** returns nil
if (drawing == nil) {
return NO;
} else {
view.drawing = drawing;
return YES;
}
}
Nothing appeared when I opened a saved file, and log said:
2008-04-23 23:33:44.127 EasyDraw[631:10b] *** -[NSDocumentController
localizedFailureReason]: unrecognized selector sent to instance
0x11b210
2008-04-23 23:33:44.128 EasyDraw[631:10b] *** -[NSDocumentController
localizedFailureReason]: unrecognized selector sent to instance
0x11b210
I don't know what the log means.
Besides, I found the value returned by [NSKeyedUnarchiver
unarchiveObjectWithData:data] was nil, but I didn't understand why,
since it was normal when I saved the file using [NSKeyedArchiver
archivedDataWithRootObject:view.drawing].
___
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Re: Special handling of keystrokes in a window controller
You can subclass NSWindow for your window and override keyDown:. The ones you want to pass down the chain you send by calling the superclass's keyDown. On Apr 23, 2008, at 9:36 AM, Duncan Champney wrote: I could easily change my zoom in/zoom out keystrokes to be the bracket keys ([ ] with or without shift), or some other set of keys that are only used by the 3D view, but I need a way to intercept them. Is there a clean way for me to catch certain keystrokes globally for the window, and pass them to my 3D view, while letting others go to the current firstResponder? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Resource Fork - is this a good use/the right thing to do?
That's pretty much option 1, albeit implemented slightly more robustly than I was thinking of. But my data's not sensitive, so there's no advantage in losing it on sending it to someone else, and in fact I'd much prefer it was retained if possible. -Dan On Apr 23, 2008, at 11:10 AM, Jens Alfke wrote: Another possibility is to write a short unique string (like a UUID) into an extended attribute, and then use that as a key into your own external data store, like a database or plist you put in some central place. A nice feature of this approach is that you only have to modify the file once, not every time your data changes. A drawback is that if the file is sent to somebody else, the information doesn't go with it. (Which, depending on what the info is, could be considered a benefit: people have gotten in trouble for forgetting about the metadata Word attaches to their documents.) —Jens ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
QTMovie grabing while playback
Hi, I've done some image analysing software for QTKit Capture. It works fine. Now i need to use this for a quicktime movie. I can playback the quicktime movie, but i can't find any delegate which tells my application, that a new frame is rendered. If i can get this information i could grab this frame in order to analyse it. can anyone tell me how to do it? I don't want the user to click grabFrame or something like that. regards Nikolai Hellwig ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Uneditable NSTableView (SOLVED)
I'm not quite sure what you mean by target here The target is the object that your selector message will be sent to. How will your TableView know which object responds to the selector you give it? It's not magic... HTH It did help indeed, and even solved my problem! (it now works with a single click by the way, just as in Mail). I was confused because although I already knew how an action in an object could be the target of a button or a single cell in a table view, I hadn't yet understood that it could be the target of a table view as a whole, with the action triggered by any of the cells in it. Many thanks! Ewan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Resource Fork - is this a good use/the right thing to do?
Thirded. Matt Gough wrote: I'd second that. The OS (well, Finder) also adds things to the resource fork of files (custom icons, info about which app to open a file with when you changed it from the default etc). Just as long as you respect the existing contents this is exactly where you should put your data. On 23 Apr 2008, at 14:29, Ken Thomases wrote: On 23/04/2008, at 5:41 PM, Daniel DeCovnick wrote: Thanks for the suggestion. I've just looked through them now, as well as at the OSXBook (Mac OS X Internals: A Systems Approach by Amit Singh) info on that. In theory it looks good, but it's somewhat confusing. It looks like, at least in 10.4, except for the resource fork which is mapped as a fake xattr, you can only have inline attributes, with a length limit of 3802 bytes, and it would be quite common for my data to be significantly larger than that. Does anyone know if that's changed for 10.5? I say, if using the resource fork works for you, go for it. Whatever disadvantages there might be are 1) theoretical, and 2) no worse than extended attributes. No sense bending over backward to try to get some supposedly superior solution to work not quite as well as the resource fork would. That's my two cents, anyway. Cheers, 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/matt.gough%40agfa.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/jstiles%40blizzard.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]
NSImage and NSImageView issues (not drawing correctly)
Hi, 1. I'm using: NSImage *image = [[NSImage alloc] initWithData:data]; NSImageRep *imageRep = [image bestRepresentationForDevice:nil]; NSImage *imageToBeDrawn = [[NSImage alloc] init]; [imageToBeDrawn addRepresentation:imageRep]; if ([imageToBeDrawn isValid] == YES) [previewImage setImage:imageToBeDrawn]; else [previewImage setImage:nil]; [data release]; // where previewImage is of (NSImageView *) type. But certain images (even the small size like 100KB) are not completely drawn, and the display shows garbled image. certain PNG image shows only a black rectangle. only some small images are drawn in good quality. 2. Can I show text in NSImageView. Certain same category software are showing text in the same place as their NSIMageView. So I was wondering, how thats possible. (I have checked their nib files, and the text show at the same place as thier NSImageView). Any help would be greatly appreciated. Wishes, Nick ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSImage and NSImageView issues (not drawing correctly)
You might need to specify a size for some formats for your imageToBeDrawn object. On Apr 23, 2008, at 10:27 AM, Nick Rogers wrote: Hi, 1. I'm using: NSImage *image = [[NSImage alloc] initWithData:data]; NSImageRep *imageRep = [image bestRepresentationForDevice:nil]; NSImage *imageToBeDrawn = [[NSImage alloc] init]; [imageToBeDrawn addRepresentation:imageRep]; if ([imageToBeDrawn isValid] == YES) [previewImage setImage:imageToBeDrawn]; else [previewImage setImage:nil]; [data release]; // where previewImage is of (NSImageView *) type. But certain images (even the small size like 100KB) are not completely drawn, and the display shows garbled image. certain PNG image shows only a black rectangle. only some small images are drawn in good quality. 2. Can I show text in NSImageView. Certain same category software are showing text in the same place as their NSIMageView. So I was wondering, how thats possible. (I have checked their nib files, and the text show at the same place as thier NSImageView). ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Resource Fork - is this a good use/the right thing to do?
That the Resource Manager is still around in 64-bit definitely alleviates one of my concerns - will whatever I use still be around in the future? Thanks much, Dan On Apr 23, 2008, at 10:12 AM, Sean McBride wrote: On 4/23/08 1:21 AM, Daniel DeCovnick said: I'm writing an application that opens particular kinds of files, parses them, displays an editable graphical representation of the contents of a file, and saves the results of the changes to the file. However, some graphical changes don't result in changes to the original file, yet those changes need to be saved - a little bit analogous to the Finder saving the positions of icons in a window, but not changing the files themselves. This seems like a perfect use of package documents (a la .rtfd), except for one problem: the files I'm opening aren't mine, and should remain openable in other applications, so I can't wrap them up. I'd also really like to avoid making changes to the files themselves, at least the portions that their normal programs read. The Resource fork has been used for a long time for exactly that purpose. As others have said, extended attributes are another possibility. Both risk being clobbered by poorly written tools. Personally, I think a resource is a better idea. They're actually less likely to get clobbered as they have been around longer (you could even copy them to a Classic system, or 10.0, etc.). The Resource Manager is not deprecated and is even available in 64 bit (unlike other parts of Carbon). NDResourceFork provides a nice Cocoa wrapper over the C APIs. See: http://homepage.mac.com/nathan_day/pages/source.xml -- Sean McBride, B. Eng [EMAIL PROTECTED] Rogue Researchwww.rogue-research.com Mac Software Developer Montréal, Québec, Canada ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Resource Fork - is this a good use/the right thing to do?
Coincidentally I just went through that same song and dance. With Spotlight becoming more and more important in OSX, it is surprising Apple has not provided a clean method to store arbitrary metadata with any kind of file. Maybe time for us all to file an enhancement request. As others have mentioned, all currently available methods have drawbacks: - resource fork: Antiquated, entire data has to be read and stored back to even change a flag, creeping feeling they might be dropped at some point, care has to be taken which tools are used to process the files so resource fork is not lost. - xattrs: limited storage per attribute, tools may loose them. - Other approaches like db, links, hidden files etc: Separation of file and metadata, no support by standard tools, synching is tricky. Adobe attempted to solve the dilemma for graphic files by introducing XMP (http://www.adobe.com/products/xmp/), but it suffers from serious drawbacks: - Not a generic solution - Entire files have to be rewritten to modify metadata - Adding the metadata in some file formats seems like a hack, and has limitations that are dependent on the file format - Overly complicated and limiting storage schema - SDK seems overly complicated (mildly speaking) and still lacking core functionality Of course there are advantages to: - Platform independent - Metadata stays with files, no special knowledge required by file- handling tools, file systems or OS But overall no clear winner. Only option is to analyse one's design goals, and pick the lesser of the evils. In my opinion the best hypothetical solution would be if each file comes with a related directory that allows for storage of arbitrary metadata. However the hurdles of introducing something like that are enormous: All tools (simple tools like cp, complexer tools like tar, zip, rsync) would need to add support, and ways to make storage on alien file systems and efficient use through network file systems would have to be found. With metadata becoming more and more important in daily use it would be great if a platform independent way of storing metadata would be devised. But I am not holding my breath. In the mean time we all muddle along with our individual solutions... Another, though related, issue is that spotlight importers still can not be cascaded. Even just adding a few simple fields of metadata to an existing file format means one has to re-implement the importer for that format from scratch, no way of 'sub-classing' existing importers. Gerd (filing an enhancement request next) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Resource Fork - is this a good use/the right thing to do?
Actually it is possible, at least according to the OSXBook, to add arbitrary key-value paired metadata to a file (IIRC, all MDItem keys share a flat namespace). It theoretically works without Spotlight, but nothing uses metadata that doesn't use Spotlight currently, AFAIK, and my data isn't anything that would be meaningful to anything or anyone outside of my app. It really is data rather than metadata. On Apr 23, 2008, at 12:41 PM, Gerd Knops wrote: Coincidentally I just went through that same song and dance. With Spotlight becoming more and more important in OSX, it is surprising Apple has not provided a clean method to store arbitrary metadata with any kind of file. Maybe time for us all to file an enhancement request. With metadata becoming more and more important in daily use it would be great if a platform independent way of storing metadata would be devised. But I am not holding my breath. In the mean time we all muddle along with our individual solutions... Another, though related, issue is that spotlight importers still can not be cascaded. Even just adding a few simple fields of metadata to an existing file format means one has to re-implement the importer for that format from scratch, no way of 'sub-classing' existing importers. Off-topic, but amen! -Dan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Safe frameworks for privileged tools?
On Wed, Apr 23, 2008 at 11:42 AM, Dave Camp [EMAIL PROTECTED] wrote: Unless I'm reading the OP wrong, he's writing a privileged helper tool, not a daemon. Given that, I don't think the above documents are applicable. None of what I know is official, but just gathered and extrapolated from years of reading information about this. So I might be wrong... who knows. The unsafe frameworks make connections to the default window server. As a program launched from Finder/Dock/et al, this will always work as expected. Launched from ssh or root, there are some caveats. For ssh, they will work fine as long as the same user is logged onto the GUI. As soon as the user logs out, your program loses its connection and might crash. For root, they will work as long as the console user stays the same. If someone uses fast user switching, or logs out, then the program's connection changes and it might crash. In any event, none of the unsafe frameworks are documented as working in any conditions other than the normal ones. People may get them to work 90% of the time under other conditions, but that's unsupported and may change. So unless DTS tells you otherwise, I'd stay away. But that's me... maybe 90% is good enough for you. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
Nikolai, QTMovieView has a delegate method - (CIImage*) view: (QTMovieView *)Target_View willDisplayImage: (CIImage *)New_Image This method gives you a CIImage to play with before it is displayed in the Target_View. Check the header file for QTMovieView.h (near the bottom). I think the the MyMovieFilter sample code uses this method. Note: Depending on what type of analysis you are doing you may need to convert the CIImage into a pixel-based format. If that is too slow you may want to get friendly with QTVisualContextIsNewImageAvailable() and the Display Link... check out the CIVideoDemoGL sample code. regards, douglas On Apr 23, 2008, at 12:19 PM, Nikolai Hellwig wrote: Hi, I've done some image analysing software for QTKit Capture. It works fine. Now i need to use this for a quicktime movie. I can playback the quicktime movie, but i can't find any delegate which tells my application, that a new frame is rendered. If i can get this information i could grab this frame in order to analyse it. can anyone tell me how to do it? I don't want the user to click grabFrame or something like that. regards Nikolai Hellwig ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
Le 23 avr. 08 à 19:30, Bob Smith a écrit : On Apr 23, 2008, at 10:05 AM, douglas a. welton wrote: Nikolai, QTMovieView has a delegate method - (CIImage*) view: (QTMovieView *)Target_View willDisplayImage: (CIImage *)New_Image This method gives you a CIImage to play with before it is displayed in the Target_View. Check the header file for QTMovieView.h (near the bottom). I think the the MyMovieFilter sample code uses this method. I cannot find this method in the documentation, where is it described? Is it in the public interface? This is the perfect solution to a similar problem I'm having with a Cocoa app using QuickTime, but I don't want to use undocumented private APIs. Yes, it's a public method even if the documentation is missing. Undocumented does not mean private. You may considere that everything that is declared in public headers is public (except if there is a comment that say it's not, but it's unusual). This method is not documented because this is a method introduce with QTKit 7.2 and the documentation was not updated to reflect the change. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
On Apr 23, 2008, at 11:30 AM, Bob Smith wrote: On Apr 23, 2008, at 10:05 AM, douglas a. welton wrote: QTMovieView has a delegate method - (CIImage*) view: (QTMovieView *)Target_View willDisplayImage: (CIImage *)New_Image This method gives you a CIImage to play with before it is displayed in the Target_View. Check the header file for QTMovieView.h (near the bottom). I think the the MyMovieFilter sample code uses this method. I cannot find this method in the documentation, where is it described? Is it in the public interface? This is the perfect solution to a similar problem I'm having with a Cocoa app using QuickTime, but I don't want to use undocumented private APIs. I think he means QTCaptureView. It's not undocumented; you'll find it in the QTCaptureView class reference material (available in QT 7.2.1 and later). Whether it's relevant for you or not depends on how you're displaying the movie. I *think* (but am not 100% sure) that this delegate method is only valid for this particular type of view (which displays a video preview of a capture session). ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Uneditable NSTableView (SOLVED)
On Apr 23, 2008, at 9:21 AM, Ewan Delanoy wrote: I'm not quite sure what you mean by target here The target is the object that your selector message will be sent to. How will your TableView know which object responds to the selector you give it? It's not magic... HTH It did help indeed, and even solved my problem! (it now works with a single click by the way, just as in Mail). I was confused because although I already knew how an action in an object could be the target of a button or a single cell in a table view, I hadn't yet understood that it could be the target of a table view as a whole, with the action triggered by any of the cells in it. Many thanks! Based on your description of the problem, you probably want to update your lower pane via: - (void)tableViewSelectionDidChange:(NSNotification *)notification; .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: Resource Fork - is this a good use/the right thing to do?
Am 23.04.2008 um 09:41 schrieb Daniel DeCovnick: Thanks for the suggestion. I've just looked through them now, as well as at the OSXBook (Mac OS X Internals: A Systems Approach by Amit Singh) info on that. In theory it looks good, but it's somewhat confusing. It looks like, at least in 10.4, except for the resource fork which is mapped as a fake xattr, you can only have inline attributes, with a length limit of 3802 bytes, and it would be quite common for my data to be significantly larger than that. Does anyone know if that's changed for 10.5? You may want to look at the size limits on resource forks, though. I thought I'd blogged about that ages ago, but can't find the posting right now. The resource fork format is documented, though, so it shouldn't be too hard to figure out. There's for example a 2727 resources limit on each file, and some offsets are 16-bit quantities. So, it's not really a good idea to have resources of several megabytes in size. Cheers, -- Uli Kusterer The Witnesses of TeachText are everywhere... http://www.zathras.de ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
Le 23 avr. 08 à 19:58, Randall Meadows a écrit : On Apr 23, 2008, at 11:30 AM, Bob Smith wrote: On Apr 23, 2008, at 10:05 AM, douglas a. welton wrote: QTMovieView has a delegate method - (CIImage*) view: (QTMovieView *)Target_View willDisplayImage: (CIImage *)New_Image This method gives you a CIImage to play with before it is displayed in the Target_View. Check the header file for QTMovieView.h (near the bottom). I think the the MyMovieFilter sample code uses this method. I cannot find this method in the documentation, where is it described? Is it in the public interface? This is the perfect solution to a similar problem I'm having with a Cocoa app using QuickTime, but I don't want to use undocumented private APIs. I think he means QTCaptureView. It's not undocumented; you'll find it in the QTCaptureView class reference material (available in QT 7.2.1 and later). Whether it's relevant for you or not depends on how you're displaying the movie. I *think* (but am not 100% sure) that this delegate method is only valid for this particular type of view (which displays a video preview of a capture session). This delegate method was also added to QTMovieView. It's really helpfull for example if you want to apply some effect or if you want to insert text in your movie. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Inserting my own Responder before App?
On Apr 23, 2008, at 1:01 AM, j o a r wrote: Did you hook it up to be the delegate of the window? That's how it ends up in the responder chain. In this way it would appear *before* the app, which typically is what you want. If you want to add something *after* the app, don't use a window controller, use an application delegate. I don't know which window to hook it to. From what I understand in the docs, Cocoa manages the responder chain dynamically, generally ending with the App, App's delegate, and the NSDocumentController. As the user activates various windows, the responder chain changes to reflect the currently-main document, but it's always topped by the app. To be frank, I hadn't noticed that the document controller was last in the chain. Had I designed it, the document controller would be last, but just before the App. I suspect this is because there's no mechanism for saying this object is the 'top', and then having that object point to the NSApp. My code currently inserts my controller between the app and whatever the app is pointing to. (I don't know what happens if an app delegate is installed after that.) I really need for my controller to be created at launch, but not its window. I don't know if that's happening yet. But even though its window may never be shown, it still needs to be there to support other app operations, and to respond to the import action. On Apr 23, 2008, at 1:06 AM, Cathy Shive wrote: Does your window know about the window controller and vice-versa? It's not clear how you're setting this up from your post, but you might need to tell the window about your window controller subclass: Good question. I sort of assumed that, because they are wired together in IB, that they know about each other. However, as mentioned above, the window may never actually be shown, but the controller needs to be there anyway. [window setWindowController:windowController]; Or the other way around? [windowController setWindow:window]; Or using brute force, the window controller can add itself to the responder chain after the window like this: [window setNextResponder:self]; If they know about each other, it shouldn't be necessary to explicitly set the window's next responder, though. Like I said, the window might not be showing, so I can't really depend on that mechanism to put my controller in the chain. I'm sure most people deal with this situation by having NSApp respond to the import command, and forwarding that on to the appropriate object. That seems like a bit of a kludge in an environment where something like the responder chain exists. I'm sure this is mostly moot (at least in this case); it's probably sufficient for my controller to live after the App, it's just less elegant. Thanks, -- Rick ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
On Apr 23, 2008, at 12:15 PM, Jean-Daniel Dupas wrote: This delegate method was also added to QTMovieView. It's really helpfull for example if you want to apply some effect or if you want to insert text in your movie. Nice. I use the QTCaptureView version in my app to rotate a live video preview coming from a digital camera. I use CIImage's - imagebyApplyingTransform: to rotate it 90° to match the orientation of the camera, but I can only get about 3 1/3 frames per second out of it. MY client has requested a better frame rate than that, but I've been stymied so far. Any suggestions on how to do better?___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Resource Fork - is this a good use/the right thing to do?
Am 23.04.2008 um 17:10 schrieb Jens Alfke: Another possibility is to write a short unique string (like a UUID) into an extended attribute, and then use that as a key into your own external data store, like a database or plist you put in some central place. Not a good idea. The user could duplicate the file, and then both files would be associated with the same store entry... Cheers, -- Uli Kusterer The Witnesses of TeachText are everywhere... http://www.zathras.de ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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]
awakeFromInsert rules: ok to fetch and create other managed objects?
Hi all, I've been reading the archives for hours, trying to figure out the 'rules' for what can and cannot be done in awakeFromInsert. 1) Is it ok to execute a fetch from awakeFromInsert? One might want to do this to set a default property value that depends on other objects' state. It seems the answer is no. 2) Is it ok to create other managed objects in awakeFromInsert? One might want to do this to set initial relationships. It seems the answer is yes. I'm hoping someone can confirm/deny these. Thanks, -- Sean McBride, B. Eng [EMAIL PROTECTED] Rogue Researchwww.rogue-research.com Mac Software Developer Montréal, Québec, Canada ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Using OSMemoryBarrier() with KVO
On 23 Apr 2008, at 03:41, Ken Thomases wrote: On Apr 22, 2008, at 6:37 AM, Paul Thomas wrote: Is this enough? Or will I need to use a full blown lock? What is it that you fear going wrong, such that you think even OSMemoryBarrier is necessary? I think the barrier is needed to ensure that when other threads see done == YES, they can be certain that the other members are set and will not be changed. What I didn't show in the code, but is implied, is the threads trying to access the result by checking done. if( [promise isDone] ) return [promise result]; else [promise observeValue... etc. Anyway, I missed a hole. It requires an atomic 'observeIfNotDone' which means I need a lock. Premature optimisation and all that... Thanks for you help (both), pt. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Safe frameworks for privileged tools?
Yes, it's a helper tool. It runs for a couple of seconds (under normal conditions) and exits immediately. It interacts with the file system by reading information about some directories, so its launched duration is, of course, bound to the responsiveness of the hard drive on which it's operating. As such, a couple of seconds might be five or ten seconds on machines where the drive is spinning up, otherwise busy, etc. It's certainly possible that someone might invoke fast user switching right in the middle of the tool running, but it's /probably/ not an issue. I'm still not quite convinced it isn't, just yet. I need to do more thinking about it. The discussion so far has been very helpful. As far as connecting to the window server goes, Apple states: http://developer.apple.com/technotes/tn2005/tn2083.html#SECWINDOWSERVER Apple plans to disable the global window server service in a future release of Mac OS X. Do not write any new code that uses the global window server service. So when you say default window server, are you speaking of the global window server, or the default window server associated with the current console session? -- m-s On 23 Apr, 2008, at 13:04, stephen joseph butler wrote: On Wed, Apr 23, 2008 at 11:42 AM, Dave Camp [EMAIL PROTECTED] wrote: Unless I'm reading the OP wrong, he's writing a privileged helper tool, not a daemon. Given that, I don't think the above documents are applicable. None of what I know is official, but just gathered and extrapolated from years of reading information about this. So I might be wrong... who knows. The unsafe frameworks make connections to the default window server. As a program launched from Finder/Dock/et al, this will always work as expected. Launched from ssh or root, there are some caveats. For ssh, they will work fine as long as the same user is logged onto the GUI. As soon as the user logs out, your program loses its connection and might crash. For root, they will work as long as the console user stays the same. If someone uses fast user switching, or logs out, then the program's connection changes and it might crash. In any event, none of the unsafe frameworks are documented as working in any conditions other than the normal ones. People may get them to work 90% of the time under other conditions, but that's unsupported and may change. So unless DTS tells you otherwise, I'd stay away. But that's me... maybe 90% is good enough for you. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/mikey-san %40bungie.org This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
On Wed, 23 Apr 2008 20:15:39 +0200 Jean-Daniel Dupas [EMAIL PROTECTED] wrote: Le 23 avr. 08 à 19:58, Randall Meadows a écrit : On Apr 23, 2008, at 11:30 AM, Bob Smith wrote: On Apr 23, 2008, at 10:05 AM, douglas a. welton wrote: QTMovieView has a delegate method - (CIImage*) view: (QTMovieView *)Target_View willDisplayImage: (CIImage *)New_Image This method gives you a CIImage to play with before it is displayed in the Target_View. Check the header file for QTMovieView.h (near the bottom). I think the the MyMovieFilter sample code uses this method. I cannot find this method in the documentation, where is it described? Is it in the public interface? This is the perfect solution to a similar problem I'm having with a Cocoa app using QuickTime, but I don't want to use undocumented private APIs. I think he means QTCaptureView. It's not undocumented; you'll find it in the QTCaptureView class reference material (available in QT 7.2.1 and later). Whether it's relevant for you or not depends on how you're displaying the movie. I *think* (but am not 100% sure) that this delegate method is only valid for this particular type of view (which displays a video preview of a capture session). This delegate method was also added to QTMovieView. It's really helpfull for example if you want to apply some effect or if you want to insert text in your movie. Exactly what I'm trying to do, add text overlay to any movie being played. I have been using the Core Video display link which is fine most of the time, except for unknown reasons it doesn't work with a streaming video source. QTMovieView plays streams just fine, so if I can hook in to it's Core Image processing chain to add my overlays, problem solved. One question, is it correct to assume the delegate method might be called on a secondary thread? Thanks! Bob ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSButton reveals keyboard shortuct [SOLVED]
Answering part 1 of my own question: revealing the keyboard shortcut
once the command key is pressed. C.f. below for the code
What remains is the second part: how does NSButton implement keyboard
shortcuts. How would I implement and additional shortcut for a button
which already has one.
Best,
Pierre Bernard
Houdah Software s.à r.l.
extern NSUInteger carbonToCocoaModifierFlags(UInt32
carbonModifierFlags);
extern NSString *stringForCocoaModifierFlagsAndKeyCode(NSUInteger
flags, NSString *keyEquivalent);
@implementation HHShortcutButton
@synthesize baseTitle;
- (id)initWithCoder:(NSCoder*)coder
{
if ((self = [super initWithCoder:coder]) != nil) {
[self setBaseTitle:[self title]];
}
return self;
}
- (void)viewDidMoveToWindow
{
[super viewDidMoveToWindow];
NSWindow *window = [self window];
if (window != nil) {
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(windowDidUpdate:)
name:NSWindowDidUpdateNotification object:window];
}
}
- (void)setTitle:(NSString*)aTitle
{
[super setTitle:aTitle];
[self setBaseTitle:[self title]];
}
- (void)windowDidUpdate:(NSNotification*)notification
{
if (GetCurrentEventKeyModifiers() cmdKey) {
NSString *keyEquivalent = [self keyEquivalent];
NSUInteger keyEquivalentModifierMask = [self
keyEquivalentModifierMask];
[super
setTitle:stringForCocoaModifierFlagsAndKeyCode
(keyEquivalentModifierMask, keyEquivalent)];
}
else {
[super setTitle:[self baseTitle]];
}
}
@end
extern NSUInteger carbonToCocoaModifierFlags(UInt32 carbonModifierFlags)
{
NSUInteger cocoaModifierFlags = 0;
if (carbonModifierFlags shiftKey) {
cocoaModifierFlags |= NSShiftKeyMask;
}
if (carbonModifierFlags cmdKey) {
cocoaModifierFlags |= NSCommandKeyMask;
}
if (carbonModifierFlags optionKey) {
cocoaModifierFlags |= NSAlternateKeyMask;
}
if (carbonModifierFlags controlKey) {
cocoaModifierFlags |= NSControlKeyMask;
}
return cocoaModifierFlags;
}
extern NSString *stringForCocoaModifierFlagsAndKeyCode(NSUInteger
flags, NSString *keyEquivalent)
{
return [NSString stringWithFormat:@[EMAIL PROTECTED]@[EMAIL PROTECTED]@%@,
(flags NSCommandKeyMask ? [NSString stringWithFormat:@%C + ,
kCommandUnicode] : @),
(flags NSAlternateKeyMask ? [NSString stringWithFormat:@%C + ,
kOptionUnicode] : @),
(flags NSControlKeyMask ? [NSString stringWithFormat:@%C + ,
kControlUnicode] : @),
(flags NSShiftKeyMask ? [NSString stringWithFormat:@%C + ,
kShiftUnicode] : @),
[keyEquivalent uppercaseString]];
}
On 22 Apr 2008, at 17:48, Pierre Bernard wrote:
Hi!
I love how the buttons in some save before closing sheets reveal
themselves by being added to the button name when the command key is
held for a while.
The one example I can think of is AppleWorks 6. Wish all apps /
buttons had that.
Is this a Carbon thing?
How would I go about to implement this?
Seeing that the button in question is not in the responder chain, I
guess the implementation ought to be moved to the window or window
controller. This doesn't strike me as the best place. I'd rather
have a reusable NSButton subclass.
Such buttons also may have multiple shortcuts. E.g. the default save
button is triggered by both Enter and cmd-S. This does not seem to
be possible with NSButton. Again I wonder if I should override
keyDown: in my window controller.
BTW, how are keyboard shortcuts on NSButtons implemented? Do they
somehow register with the window for events or does the window walk
the subcomponents to find one which may respond?
Best,
Pierre
---
Pierre Bernard
http://www.bernard-web.com/pierre
http://www.houdah.com
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---
Pierre Bernard
http://www.bernard-web.com/pierre
http://www.houdah.com
smime.p7s
Description: S/MIME cryptographic signature
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Re: NSScanner question
Thanks Michael for your reply. I guess I should be doing more validity checks. I'll play some more. Thanks for the suggestion. Regards, Jason On 23/04/2008, at 7:57 PM, Michael Vannorsdel wrote: At first glance I'd say it's crashing because you're not checking if scanUpToCharactersFromSet:intoString: was successful and trying to add what may be an invalid object (foundStrings) to an array. On Apr 23, 2008, at 3:46 AM, Jason Wiggins wrote: I've been playing with NSScanner to cut a string eg: this is a test So is thistest from a search field into its components. ie. extract the quoted text to be placed into an array as well as the other components, pre and post quoted text. The other components will eventually be split with componentsSeparatedByString. My issue is that if I paste the above text into the search field, all is OK. But if I type in- test as a test case, it locks up and fails with The Debugger has exited due to signal 11 (SIGSEGV).The Debugger has exited due to signal 11 (SIGSEGV). ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/jwiggins%40optusnet.com.au 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: Uneditable NSTableView (SOLVED)
Corbinn Dunn wrote I'm not quite sure what you mean by target here The target is the object that your selector message will be sent to. How will your TableView know which object responds to the selector you give it? It's not magic... HTH It did help indeed, and even solved my problem! (it now works with a single click by the way, just as in Mail). I was confused because although I already knew how an action in an object could be the target of a button or a single cell in a table view, I hadn't yet understood that it could be the target of a table view as a whole, with the action triggered by any of the cells in it. Many thanks! Based on your description of the problem, you probably want to update your lower pane via: - (void)tableViewSelectionDidChange:(NSNotification *)notification; .corbin That wouldn't be very useful for what I do because I also want the Mail-like feature of multiple selection (and possible erasing of the selected items). Generally, I think using delegate methods like this becomes awkward when there are many ways for the selection to change. Ewan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Inserting my own Responder before App?
On Apr 23, 2008, at 1:20 PM, Rick Mann wrote: My code currently inserts my controller between the app and whatever the app is pointing to. (I don't know what happens if an app delegate is installed after that.) I really need for my controller to be created at launch, but not its window. I don't know if that's happening yet. But even though its window may never be shown, it still needs to be there to support other app operations, and to respond to the import action. It seems like you're combining the role which might be called the application controller and a window controller. If you are dealing with a window controller which has no window to control, then that smells like you're fighting the framework. The app controller is usually just an instance of a custom class (subclassing from NSObject or whatever). It is also usually set up as the application delegate. You can even instantiate it in the main nib and hook up the File's Owner's delegate outlet to point to it. Although the delegate comes after the application object in the responder chain, you don't typically care. The application _delegates_ almost everything to its delegate. :) Well, everything which isn't completely generic. This is the normal way for implementing custom application-global actions. Implement them on the application delegate. Cheers, Ken ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Resource Fork - is this a good use/the right thing to do?
But the resource fork idea has the same issue if someone uses/sends/writes to the file from the other 90% of the computers on the planet... (windows). Doesn't it? I think you're best tracking the info in your own data source, doing your best to track and keep up with the user changing it outside your world, and leaving the original file alone. But like all the other suggestions here, that's just one opinion :) From: Daniel DeCovnick [EMAIL PROTECTED] Subject: Re: Resource Fork - is this a good use/the right thing to do? That's pretty much option 1, albeit implemented slightly more robustly than I was thinking of. But my data's not sensitive, so there's no advantage in losing it on sending it to someone else, and in fact I'd much prefer it was retained if possible. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Uneditable NSTableView (SOLVED)
If that's the case, you can simply check [yourTableView numberOfSelectedRows] in -tableViewSelectionDidChange: and update the bottom view based on the result. On Apr 23, 2008, at 2:05 PM, Ewan Delanoy wrote: Corbinn Dunn wrote I'm not quite sure what you mean by target here The target is the object that your selector message will be sent to. How will your TableView know which object responds to the selector you give it? It's not magic... HTH It did help indeed, and even solved my problem! (it now works with a single click by the way, just as in Mail). I was confused because although I already knew how an action in an object could be the target of a button or a single cell in a table view, I hadn't yet understood that it could be the target of a table view as a whole, with the action triggered by any of the cells in it. Many thanks! Based on your description of the problem, you probably want to update your lower pane via: - (void)tableViewSelectionDidChange:(NSNotification *)notification; .corbin That wouldn't be very useful for what I do because I also want the Mail-like feature of multiple selection (and possible erasing of the selected items). Generally, I think using delegate methods like this becomes awkward when there are many ways for the selection to change. Ewan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: QTMovie grabing while playback
Bob Randall, If all you want to do is slap some arbitrary text over a movie, I would suggest that you take a look at using QTMovieLayer and CATextLayer as the mechanism for doing this. I don't have any code that I can share with you on this, but a previous client project used these two Core Animation objects with excellent results. regards, douglas On Apr 23, 2008, at 2:39 PM, Bob Smith wrote: On Wed, 23 Apr 2008 20:15:39 +0200 Jean-Daniel Dupas [EMAIL PROTECTED] wrote: Le 23 avr. 08 à 19:58, Randall Meadows a écrit : On Apr 23, 2008, at 11:30 AM, Bob Smith wrote: On Apr 23, 2008, at 10:05 AM, douglas a. welton wrote: QTMovieView has a delegate method - (CIImage*) view: (QTMovieView *)Target_View willDisplayImage: (CIImage *)New_Image This method gives you a CIImage to play with before it is displayed in the Target_View. Check the header file for QTMovieView.h (near the bottom). I think the the MyMovieFilter sample code uses this method. I cannot find this method in the documentation, where is it described? Is it in the public interface? This is the perfect solution to a similar problem I'm having with a Cocoa app using QuickTime, but I don't want to use undocumented private APIs. I think he means QTCaptureView. It's not undocumented; you'll find it in the QTCaptureView class reference material (available in QT 7.2.1 and later). Whether it's relevant for you or not depends on how you're displaying the movie. I *think* (but am not 100% sure) that this delegate method is only valid for this particular type of view (which displays a video preview of a capture session). This delegate method was also added to QTMovieView. It's really helpfull for example if you want to apply some effect or if you want to insert text in your movie. Exactly what I'm trying to do, add text overlay to any movie being played. I have been using the Core Video display link which is fine most of the time, except for unknown reasons it doesn't work with a streaming video source. QTMovieView plays streams just fine, so if I can hook in to it's Core Image processing chain to add my overlays, problem solved. One question, is it correct to assume the delegate method might be called on a secondary thread? Thanks! Bob ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/douglas_welton%40earthlink.net 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]
A Cocoa means to detect SysPref 'Enable access for assistive devices
Folks; Is there a straight Cocoa means to detect the System Preferences/ Universal Access setting for 'Enable access for assistive devices'? I've found plenty of references on using Applescript to detect this setting. The Cocoa Assistive API seems pretty extensive but I can't glean a way to just determine this setting using Cocoa... I understand the potential 'admin' aspects of the setting. All I want is a means to know what the current setting is. Any links or code snippets appreciated! Steve ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: A Cocoa means to detect SysPref 'Enable access for assistive devices
Is there a straight Cocoa means to detect the System Preferences/ Universal Access setting for 'Enable access for assistive devices'? I don't think this counts as Cocoa, but it's better than AppleScript: AXAPIEnabled() 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]
Re: A Cocoa means to detect SysPref 'Enable access for assistive devices
on 2008-04-23 4:37 PM, Peter Maurer at [EMAIL PROTECTED] wrote: Is there a straight Cocoa means to detect the System Preferences/ Universal Access setting for 'Enable access for assistive devices'? I don't think this counts as Cocoa, but it's better than AppleScript: AXAPIEnabled() You can also make your app trusted using the AX API, in Leopard, so that the Universal Access preference need not be set at all. But it requires authentication so you have to jump through a lot of hoops to implement it. You can also set the Universal Access preference using AppleScript, in Tiger and Leopard, without jumping through any hoops at all (because System Preferences takes care of the authentication dialog for you). Thus, you could use NSAppleScript or OSAKit to run a script that will set the Universal Access setting, if you find that it is not already set. -- Bill Cheeseman - [EMAIL PROTECTED] Quechee Software, Quechee, Vermont, USA www.quecheesoftware.com PreFab Software - www.prefabsoftware.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]
Caching a local file using NSURLCache
Hi,
I want to cache local files (images) so I cache a NSData using
[NSURLCache storeCachedResponse]
If I try to fetch it, the cachedResponseForRequest:request is always
nil under 10.5
This works under 10.4.
I tried to create my own sharedURLCache, but it still doesn't work.
I use
NSString *path = [NSString stringWithString:@/Library/Desktop
Pictures/Nature/Clown Fish.jpg];
NSImage* diskImage;
diskImage = [[NSImage alloc] initWithContentsOfFile:path];
NSData*data = [diskImage TIFFRepresentation];
NSURL *cacheURL = [NSURL fileURLWithPath:aPath];
NSURLResponse *response = [[[NSURLResponse alloc]
initWithURL:cacheURL
MIMEType:@application/octet-stream
expectedContentLength:[data length]
textEncodingName:nil] autorelease];
NSCachedURLResponse *cachedResponse = [[[NSCachedURLResponse alloc]
initWithResponse:response
data:data
userInfo:[NSDictionary
dictionary]
storagePolicy:NSURLCacheStorageAllowed] autorelease];
NSURLRequest *request = [NSURLRequest requestWithURL:cacheURL];
[self storeCachedResponse:cachedResponse forRequest:request];
cachedResponse = [self cachedResponseForRequest:request];
if (cachedResponse) {
NSLog(@cached data for %@ is %d, [[cachedResponse response]
URL], [[cachedResponse data] length]);
} else {
NSLog(@Cached response is NULL);
}
What is the correct way to use NSURLCache with NSData on 10.5?
I have a test project available http://coriolis.ch/dl/cache.zip if
anyone wants to have a look,
Thanks,
Stephan
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Re: Safe frameworks for privileged tools?
On 24/04/2008, at 4:35 AM, Michael Watson wrote: Yes, it's a helper tool. It runs for a couple of seconds (under normal conditions) and exits immediately. It interacts with the file system by reading information about some directories, so its launched duration is, of course, bound to the responsiveness of the hard drive on which it's operating. As such, a couple of seconds might be five or ten seconds on machines where the drive is spinning up, otherwise busy, etc. It's certainly possible that someone might invoke fast user switching right in the middle of the tool running, but it's /probably/ not an issue. I'm still not quite convinced it isn't, just yet. I need to do more thinking about it. The discussion so far has been very helpful. As far as connecting to the window server goes, Apple states: http://developer.apple.com/technotes/tn2005/ tn2083.html#SECWINDOWSERVER Apple plans to disable the global window server service in a future release of Mac OS X. Do not write any new code that uses the global window server service. So when you say default window server, are you speaking of the global window server, or the default window server associated with the current console session? The document you are looking at is talking about unsafe frameworks for daemons. You're writing a helper tool, not a daemon, so it's not applicable. A helper tool (that's run as a helper to a GUI application) will run fine linked to any frameworks. If the helper tool is spawned by a GUI process, it will inherit its session and so there's no issue with it using the global window server service. The only issue is what security hazards linking to other frameworks introduce. The idea is that you should link to as little as possible so as to minimise the risk and you should probably avoid using Objective-C (although I don't actually know if there are any security risks from using Objective-C— non privileged Input Managers are surely not loaded). I would have thought that any security risks that exist from linking to other frameworks are considered bugs which means that there won't be a list of “safe” frameworks anywhere and if you find any issues, they need to be reported to Apple. Kind regards, Chris 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: IB3 can't find my class
Nick Zitzmann wrote: On Apr 23, 2008, at 4:04 PM, John Stiles wrote: I have a class declared in code which, until recently, didn't have any IBActions in it. Recently I added some, and went to IB3, but it didn't notice that I had added the actions. I had to manually add them via the + button. Is there any way I can give IB3 a hint so it can find the class' @interface declaration? In case it matters, it's in a .mm file, not a header... does IB3 only look at headers? Was it in a framework? IB 3 tends to ignore frameworks other than the AppKit framework. Nope, no frameworks. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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]
NSTextView text coloring problem
Hi Everybody, I am reposting this since I haven't got any answers, yet. Hope somebody helps this time around. I am writing an easy chat application. I have an object of NSTextview on my UI form. I want to change the text color in a specified range from default color black to red. I used the method setTextColor:range: but it did not work. Following is my declaration of the object and the corresponding code. More specifically, the code below is supposed to change color of a certain range of characters (in the following case, between 1st and the 6th chars) but it doesn't really work. it either changes the color of the whole text to red when I start from zero or it doesn't make any changes if I start from 1. Any suggestions ? IBOutlet NSTextView* _view; [(_view) setTextColor:[NSColor redColor] range: NSMakeRange(1,5)]; Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: NSTextView text coloring problem
Look like you text view does not allow rich text. Make sure the Allow Rich Text check box is checked in your TextView config in IB or set it programaticaly using -[NSTextView setRichText:] - (void)setRichText:(BOOL)flag “Controls whether the text views sharing the receiver’s layout manager allow the user to apply attributes to specific ranges of text.” Le 24 avr. 08 à 00:19, tyler durden a écrit : Hi Everybody, I am reposting this since I haven't got any answers, yet. Hope somebody helps this time around. I am writing an easy chat application. I have an object of NSTextview on my UI form. I want to change the text color in a specified range from default color black to red. I used the method setTextColor:range: but it did not work. Following is my declaration of the object and the corresponding code. More specifically, the code below is supposed to change color of a certain range of characters (in the following case, between 1st and the 6th chars) but it doesn't really work. it either changes the color of the whole text to red when I start from zero or it doesn't make any changes if I start from 1. Any suggestions ? IBOutlet NSTextView* _view; [(_view) setTextColor:[NSColor redColor] range: NSMakeRange(1,5)]; Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/devlists%40shadowlab.org This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: NSTextView text coloring problem
On 24 Apr 2008, at 8:19 am, tyler durden wrote: Any suggestions ? IBOutlet NSTextView* _view; [(_view) setTextColor:[NSColor redColor] range: NSMakeRange(1,5)]; You can just set the fore-colour attribute on the text itself: (typed into Mail) [[_view textStorage] addAttribute:NSForegroundColorAttributeName value: [NColor redColor] range:NSMakeRange( 1, 5 )]; Aside: your ivars shouldn't start with an underscore - Apple reserves such names for its own classes. hth, 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: A cursor bug in DragItemAround example
On Apr 23, 2008, at 08:10, an0 wrote: Chances are, calling '[[self enclosingScrollView] setDocumentCursor:[NSCursor closedHandCursor]]' in 'mouseDown:' will fix the problem you're seeing. NSScrollView/NSClipView's way of changing the cursor conflicts with autoscrolling or drag-scrolling, but AFAIK there's no way of preventing that interference directly. This partially works. However, if you move the item off the visible part of scroll view and then move back, you'll find a arrowCursor instead of openHandCursor when cursor hovers on the item. It seems cursor problems pervade Cocoa applications and Apple just ignores them:( Does this sample application still use cursorRects/NSTrackingRects? Leopard introduced a new mechanism -- NSTrackingArea and cursorUpdate events -- which doesn't have some of the problems that the old mechanism supposedly had. With NSTrackingArea and cursorUpdate you should be able to get complete, consistent control of the cursor inside the visible portion of your view (even when returning from the outside), and it's fairly easy to use. [NSScrollView setDocumentCursor:] will still be necessary to control the part of the scroll view outside the visible portion of your view, and control entirely outside the scroll view (or window) will be harder to enforce, because other views (and other windows) may have their own ideas. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Library-Object in NSPersistentDocument but not in XML-file
Hello everybody! In my document-based core data application I have a outline view which displays a list of departments like this (similar to iTunes): COMPANY [Item] -- All Employees [SmartItem : Item] -- Department A [Department : Item] -- Department B [Department : Item] That works very well! Items have many children and one parent and the NSTreeController handles it without any problems. However: I don't want any Items (COMPANY) or SmartItems (All Employees) to be saved in the document because they are only temporary objects so to say. This is done in CoreRecipes using two different stores: NSXMLStoreType and NSInMemoryStoreType. When I tried to add this to my app, the saved document is empty. It looks like all objects are assigned to the in-memory store. In fact, the in-memory store is the only one in the context until the document gets saved. Can you help me? Mike ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Resource Fork - is this a good use/the right thing to do?
Am 23.04.2008 um 09:43 schrieb Daniel DeCovnick [EMAIL PROTECTED]: On Apr 23, 2008, at 2:07 AM, Jens Alfke wrote: On 22 Apr '08, at 10:21 PM, Daniel DeCovnick wrote: Through a lot of thought experiments, I've come to the conclusion that the best place to save this sort of thing would be in the resource fork of the file being opened, but I could be totally off the mark there, and it's certainly an unorthodox thing to do. It would have been the right thing to do ten years ago. But these days resource forks are definitely a legacy feature and it would be a bad idea to write new software that relies on them. Have you looked at Extended Attributes? They're kind of the moral equivalent of resources, but they're newer, lighter-weight and better integrated into the filesystem. I don't know if there's any in-depth documentation, but you can start by reading the man pages for getxattr, setxattr, et al. Thanks for the suggestion. I've just looked through them now, as well as at the OSXBook (Mac OS X Internals: A Systems Approach by Amit Singh) info on that. In theory it looks good, but it's somewhat confusing. It looks like, at least in 10.4, except for the resource fork which is mapped as a fake xattr, you can only have inline attributes, with a length limit of 3802 bytes, and it would be quite common for my data to be significantly larger than that. Does anyone know if that's changed for 10.5? Depending on your semantics you could always just save a UUID in an extended attribute and then associate that with your own storage mechanism. That should always fit the size limitations. To be more safe/compatible you could actually save the UUID as an extended attribute as well in a resource. When reading use either and reconsruct the missing one if necessary and possible. HTH Mike -- Mike Fischer Softwareentwicklung, EDV-Beratung Schulung, Vertrieb Note: I read this list in digest mode! Send me a private copy for faster responses. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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]
Application Launch (or doesn't Launch as such)
Hi everyone... I'm perplexed... I'm running Xcode 3.1 (actually iPhone SDK Beta 3) on Mac OS 10.5.2 My application doesn't launch when I click the run button in Xcode (note it is NOT an iPhone app). It's an application to control USB devices. XCode tells me that the application has launched, yet it does not appear in the doc. HOWEVER I have now discovered if I run the application (from xcode) by choosing Run:Debug, it launches and runs (i.e. the main windows appears). I have done a clean and build several times, that doesn't change things. I the past during development, I've always tested the program by clicking the build and go or go buttons on the screen. But not any more (for this app). Interesting enough, I have another application (more recently developed - and also controls a USB device) that works just fine in the same xcode release by clicking go or build and go. any ideas? - David ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Resource Fork - is this a good use/the right thing to do?
You may want to look at the size limits on resource forks, though. I thought I'd blogged about that ages ago, but can't find the posting right now. The resource fork format is documented, though, so it shouldn't be too hard to figure out. There's for example a 2727 resources limit on each file, and some offsets are 16-bit quantities. So, it's not really a good idea to have resources of several megabytes in size. I'm pretty sure the resource fork size limits are rather large... EV Nova's data files, in which everything is stored in the resource fork, go up to 13.8 MB. Also, it's a definite advantage that the resource fork is well-documented. That's more than one can say for xattrs, which are best documented in the OSXBook over a grand total of 3 pages. But the resource fork idea has the same issue if someone uses/sends/ writes to the file from the other 90% of the computers on the planet... (windows). Doesn't it? I don't think it does... doesn't NTFS have support for arbitrary named forks as well? At least to the point that it doesn't overwrite other forks when the data fork is written to? I mean, Windows can't read or write to them, AFAIK, but the low-level read/write routines should preserve it. I may be completely off base here, as I think I'm quoting a blog post, which may or may not have been a wishlist for Windows behavior. :-p To be more safe/compatible you could actually save the UUID as an extended attribute as well in a resource. When reading use either and reconsruct the missing one if necessary and possible. Unfortunately, as Uli pointed out, it's no longer unique if the file is duplicated. So I think that approach is out. -Dan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Application Launch (or doesn't Launch as such)
Are you using features like ZeroLink, that won't work in a normal release build? Kevin G. Hi everyone... I'm perplexed... I'm running Xcode 3.1 (actually iPhone SDK Beta 3) on Mac OS 10.5.2 My application doesn't launch when I click the run button in Xcode (note it is NOT an iPhone app). It's an application to control USB devices. XCode tells me that the application has launched, yet it does not appear in the doc. HOWEVER I have now discovered if I run the application (from xcode) by choosing Run:Debug, it launches and runs (i.e. the main windows appears). I have done a clean and build several times, that doesn't change things. I the past during development, I've always tested the program by clicking the build and go or go buttons on the screen. But not any more (for this app). Interesting enough, I have another application (more recently developed - and also controls a USB device) that works just fine in the same xcode release by clicking go or build and go. any ideas? - David ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Application Launch (or doesn't Launch as such)
Interestingly enough I thought that Zero_Link was off (so that I could send copies of the app to others). And this had been done long ago 10.4.x days... Looking now, I see a User Defined Attribute called Zero_Link and it's set to NO. I've deleted it and recompiled (from clean). This appears not to have made any difference. - David On 24/04/2008, at 2:03 PM, Kevin Grant wrote: Are you using features like ZeroLink, that won't work in a normal release build? Kevin G. Hi everyone... I'm perplexed... I'm running Xcode 3.1 (actually iPhone SDK Beta 3) on Mac OS 10.5.2 My application doesn't launch when I click the run button in Xcode (note it is NOT an iPhone app). It's an application to control USB devices. XCode tells me that the application has launched, yet it does not appear in the doc. HOWEVER I have now discovered if I run the application (from xcode) by choosing Run:Debug, it launches and runs (i.e. the main windows appears). I have done a clean and build several times, that doesn't change things. I the past during development, I've always tested the program by clicking the build and go or go buttons on the screen. But not any more (for this app). Interesting enough, I have another application (more recently developed - and also controls a USB device) that works just fine in the same xcode release by clicking go or build and go. any ideas? - David ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Resource Fork - is this a good use/the right thing to do?
On 24/04/2008, at 11:53 AM, Daniel DeCovnick wrote: I'm pretty sure the resource fork size limits are rather large... EV Nova's data files, in which everything is stored in the resource fork, go up to 13.8 MB. Also, it's a definite advantage that the resource fork is well-documented. That's more than one can say for xattrs, which are best documented in the OSXBook over a grand total of 3 pages. The limits for resource forks are the same as for data forks. On HFS+ file-systems, they're stored in the same way as data forks are, whereas extended attributes are stored in the attributes file. You can still access the resource forks as if they were extended attributes. I don't think it does... doesn't NTFS have support for arbitrary named forks as well? At least to the point that it doesn't overwrite other forks when the data fork is written to? I mean, Windows can't read or write to them, AFAIK, but the low-level read/write routines should preserve it. I may be completely off base here, as I think I'm quoting a blog post, which may or may not have been a wishlist for Windows behavior. :-p NTFS does have support fro arbitrary named forks, but whether or not they're used depends on the implementation used to write them to an NTFS system. When OS X copies files with resource forks to file- systems that don't have support for resource-forks, I believe it creates an additional hidden file to store the data. The problem with these hidden files is that only OS X knows about them and so they'll not follow the file if you copy them using any other system. I don't know whether the SMB or read/write NTFS implementations used on OS X have proper support for resource forks (I doubt it). It doesn't look like the read-only NTFS implementation on OS X does. Sending files via e-mails doesn't work. FAT file-systems obviously don't. Unfortunately, as Uli pointed out, it's no longer unique if the file is duplicated. So I think that approach is out. Furthermore, it doesn't follow the file which was the original design goal. Going back to the original question, I personally think that the best thing to do is to just create another file and educate the user. Extended attributes and resource forks are all very nice but most users don't understand what they are and they just don't interoperate nicely with other systems. You can probably improve the user experience on OS X by storing the Catalog ID (as well as other details) of the file so that if the two files get separated you can easily find where it's moved to (assuming it's on the same file-system). - Chris 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: Resource Fork - is this a good use/the right thing to do?
Chris Suter wrote: Furthermore, it doesn't follow the file which was the original design goal. Going back to the original question, I personally think that the best thing to do is to just create another file and educate the user. Extended attributes and resource forks are all very nice but most users don't understand what they are and they just don't interoperate nicely with other systems. My first thought on reading this thread is that it would be easiest just to store the data in a zip-type archive file. You could then have all the metadata/resource files included in an archive subdirectory, and everything would transfer nicely across operating systems. OpenOffice.org does this. All of the components of a document are stored in a zipped archive that just happens to have the .odt or .od-whatever extension. Using an archive file format solves the issue of user education, since it appears to be a single file to the user, gives the programmer the option of including whatever arbitrary resources are needed for this particular file, and also solves the issue of operating system portability, since just about any OS in current use can handle copying a binary file around. Just my 2d Cheers, Jason ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: Resource Fork - is this a good use/the right thing to do?
The problem with that is, as I wrote in my first message, the real data files aren't mine, and won't be opened by my app exclusively. The data that I need to save ought to be invisible to the file's owner. Imagine, for example, that when working on a file in HexEdit, it allowed you to highlight in different colors and annotate locations in a file. Where would HexEdit save those annotations and locations and colors of highlighted areas? -Dan On Apr 23, 2008, at 11:33 PM, Jason Stephenson wrote: Chris Suter wrote: Furthermore, it doesn't follow the file which was the original design goal. Going back to the original question, I personally think that the best thing to do is to just create another file and educate the user. Extended attributes and resource forks are all very nice but most users don't understand what they are and they just don't interoperate nicely with other systems. My first thought on reading this thread is that it would be easiest just to store the data in a zip-type archive file. You could then have all the metadata/resource files included in an archive subdirectory, and everything would transfer nicely across operating systems. OpenOffice.org does this. All of the components of a document are stored in a zipped archive that just happens to have the .odt or .od-whatever extension. Using an archive file format solves the issue of user education, since it appears to be a single file to the user, gives the programmer the option of including whatever arbitrary resources are needed for this particular file, and also solves the issue of operating system portability, since just about any OS in current use can handle copying a binary file around. Just my 2d Cheers, Jason ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/danhd123%40mac.com This email sent to [EMAIL PROTECTED] ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Resource Fork - is this a good use/the right thing to do?
I'm not sure what is all about
all resources can be stored in the data fork
resource manager perfectly understands it
there is no reason whatsoever to use resource fork.
you can easiliy convert old resource file (with resources in the
resource fork)
to resource file with resources in the data fork
Resorcerer, for example does it
you can write small application that will do that too
look, for example at the following code, that copies data fork of the
file specFile (resFork = false)
or copies resource fork of the file specFile (resFork = true)
to the normal data fork file.
copied resource fork will be perfectly usable in Xcode
Resorcerer will open it as well
OSErr CopyFork(FSRefPtr specFile, bool resFork) {
OSErr err = noErr;
HFSUniStr255dataForkName;
err = FSGetDataForkName(dataForkName);
if(err != noErr) return err;
HFSUniStr255resForkName;
err = FSGetResourceForkName(resForkName);
if(err != noErr) return err;
SInt16 fileFork = -1;
HFSUniStr255fileName;
FSRef parentRef;
err = FSGetCatalogInfo(specFile, kFSCatInfoNone, NULL, fileName,
NULL, parentRef);
if(err != noErr) return err;
CFStringRef newFileName = NULL;
CFStringRef cfFileName =
CFStringCreateWithCharacters(kCFAllocatorDefault, fileName.unicode,
fileName.length);//CFString.h
if(cfFileName != NULL) {
CFMutableArrayRef tempArr =
CFArrayCreateMutable(kCFAllocatorDefault, 2, kCFTypeArrayCallBacks);
CFArrayAppendValue(tempArr, cfFileName);
CFArrayAppendValue(tempArr, (resFork) ? CFSTR(rsrc) :
CFSTR(data));
newFileName =
CFStringCreateByCombiningStrings(kCFAllocatorDefault, tempArr,
CFSTR(.));
CFRelease(tempArr);
CFRelease(cfFileName);
}
if(newFileName == NULL) return coreFoundationUnknownErr;
err = FSOpenFork(specFile,
(resFork) ? resForkName.length :
dataForkName.length,
(resFork) ? resForkName.unicode :
dataForkName.unicode,
fsRdPerm, fileFork);
if(err == noErr) {
SInt16 outFile = -1;
FSRef newFSRef;
CFIndex length = CFStringGetLength(newFileName);
UniChar *buffer = new UniChar [length];
CFStringGetCharacters(newFileName, CFRangeMake(0, length),
buffer);
err = FSCreateFileUnicode(parentRef, length, buffer,
kFSCatInfoNone, NULL,
newFSRef,NULL);
if(err == dupFNErr) {
err = FSMakeFSRefUnicode(parentRef, length, buffer,
kTextEncodingUnknown, newFSRef);
}
delete [] buffer;
err = FSOpenFork(newFSRef, dataForkName.length,
dataForkName.unicode, fsWrPerm, outFile);
if(err == noErr) {
ByteCount actualCount = 0;
SInt64 positionOffset = 0;
ByteCount requestCount = 1024;
Byte *fileBuffer = new Byte [requestCount];
while(err == noErr){
err = FSReadFork(fileFork,fsFromStart,
positionOffset, requestCount, fileBuffer, actualCount);
if(actualCount 1) break;
positionOffset += actualCount;
OSErr writeErr = FSWriteFork(outFile,fsAtMark,0,
actualCount, fileBuffer, NULL);
if(writeErr != noErr) err = writeErr;
}
delete [] fileBuffer;
FSCloseFork(outFile);
}
FSCloseFork(fileFork);
}
CFRelease(newFileName);
return err;
}
On Apr 23, 2008, at 11:55 PM, Daniel DeCovnick wrote:
The problem with that is, as I wrote in my first message, the real
data files aren't mine, and won't be opened by my app exclusively.
The data that I need to save ought to be invisible to the file's
owner.
Imagine, for example, that when working on a file in HexEdit, it
allowed you to highlight in different colors and annotate locations
in a file. Where would HexEdit save those annotations and locations
and colors of highlighted areas?
-Dan
On Apr 23, 2008, at 11:33 PM, Jason Stephenson wrote:
Chris Suter wrote:
Furthermore, it doesn't follow the file which was the original
design goal.
Going back to the original question, I personally think that the
best thing to do is to just create another file and educate the
user. Extended attributes and resource forks are all very nice but
most users don't understand what they are and they just don't
interoperate nicely with other systems.
My first thought on reading this thread is that it would be easiest
just to store the data in a zip-type archive file. You could then
have all the metadata/resource files included in an archive
subdirectory, and everything would transfer nicely across operating
systems. OpenOffice.org does this. All of the components of a
document are stored in a zipped archive that just happens to have
the .odt or .od-whatever extension.
Using an archive file format solves the issue
Re: Resource Fork - is this a good use/the right thing to do?
On 24 Apr 2008, at 12:59 pm, Chris Suter wrote: The limits for resource forks are the same as for data forks Not true - the ResourceMap contains some 24-bit pointers, or at least it used to, as well as some 16-bit length fields as well. Unless these have been changed (possible I guess, I don't know) these will bite you before the file fork limitations do. 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: Resource Fork - is this a good use/the right thing to do?
On 24/04/2008, at 2:28 PM, Graham Cox wrote: On 24 Apr 2008, at 12:59 pm, Chris Suter wrote: The limits for resource forks are the same as for data forks Not true - the ResourceMap contains some 24-bit pointers, or at least it used to, as well as some 16-bit length fields as well. Unless these have been changed (possible I guess, I don't know) these will bite you before the file fork limitations do. I'm sorry, but it is true. We're not talking about ResourceMaps, we're talking about resource forks. ResourceMaps are just one thing that you might store in a resource fork but I don't know of any reason why you can't store anything you like in them and the limits for a resource fork are the same as those for a data fork. - Chris 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: Resource Fork - is this a good use/the right thing to do?
On 24 Apr 2008, at 2:46 pm, Chris Suter wrote: On 24/04/2008, at 2:28 PM, Graham Cox wrote: On 24 Apr 2008, at 12:59 pm, Chris Suter wrote: The limits for resource forks are the same as for data forks Not true - the ResourceMap contains some 24-bit pointers, or at least it used to, as well as some 16-bit length fields as well. Unless these have been changed (possible I guess, I don't know) these will bite you before the file fork limitations do. I'm sorry, but it is true. We're not talking about ResourceMaps, we're talking about resource forks. ResourceMaps are just one thing that you might store in a resource fork but I don't know of any reason why you can't store anything you like in them and the limits for a resource fork are the same as those for a data fork. - Chris Sure, the fork limitations are the same. But the OP was talking about storing data in the Resource Fork as a resource (correct me if I'm wrong, I've only been following the thread peripherally) so ResourceMaps do come into it. 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]
NSCollectionView like control for Tiger?
Hi, I have to write an application which should also run with Tiger. Does someone know a third party NSCollectionView like control for Tiger? Thanks, Ferhat ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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: A cursor bug in DragItemAround example
On Apr 23, 2008, at 6:44 PM, Quincey Morris wrote: On Apr 23, 2008, at 08:10, an0 wrote: Chances are, calling '[[self enclosingScrollView] setDocumentCursor:[NSCursor closedHandCursor]]' in 'mouseDown:' will fix the problem you're seeing. NSScrollView/NSClipView's way of changing the cursor conflicts with autoscrolling or drag-scrolling, but AFAIK there's no way of preventing that interference directly. This partially works. However, if you move the item off the visible part of scroll view and then move back, you'll find a arrowCursor instead of openHandCursor when cursor hovers on the item. It seems cursor problems pervade Cocoa applications and Apple just ignores them:( Does this sample application still use cursorRects/NSTrackingRects? Leopard introduced a new mechanism -- NSTrackingArea and cursorUpdate events -- which doesn't have some of the problems that the old mechanism supposedly had. Yes it does. It should be updated to use the new API, but hasn't been as yet. File enhancement bugs as you feel appropriate. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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]
