Swap NSBox content without user seeing it when animation is involved
Desired action:
1) An NSBox (dstBox) with View A in it's content animates out to the left
2) NSBox's content is replaced with View B
3) NSBox with View B in it's content animates in from the right.
Actual action:
1) An NSBox (dstBox) with View A in it's content animates out to the left
2) NSBox with View A in it's content animates in from the right.
3) NSBox's content is replaced with View B
2 and 3 are swapped which is the problem.
The motion of the animation works fine. The problem is the NSBox's content
(dstBox) doesn't change on the screen until the animation is stopped. I'd like
it to be switched somewhere off screen so view B comes in from the right and
the user doesn't see the switch happen.
Does someone have any suggestions I can try out?
Thanks
//Move out
[settings setObject:dstBox forKey:NSViewAnimationTargetKey];
[settings setObject:[NSValue valueWithRect:startingFrame]
forKey:NSViewAnimationStartFrameKey];
if (toRight) {
destFrame.origin.x += destFrame.size.width+1;
} else {
destFrame.origin.x -= destFrame.size.width-1;
}
[settings setObject:[NSValue valueWithRect:destFrame]
forKey:NSViewAnimationEndFrameKey];
// Animate
NSAnimation *theAnim = [[NSViewAnimation alloc]
initWithViewAnimations:[NSArray arrayWithObject:settings]];
[theAnim setDuration:animationDuration];
[theAnim setAnimationBlockingMode:NSAnimationBlocking];
[theAnim startAnimation];
// Update the View
[dstBox setContentView:newView];
// Move in
if (toRight) {
destFrame.origin.x -= (destFrame.size.width-1)*2;
} else {
destFrame.origin.x += (destFrame.size.width+1)*2;
}
[settings setObject:[NSValue valueWithRect:destFrame]
forKey:NSViewAnimationStartFrameKey];
[settings setObject:[NSValue valueWithRect:startingFrame]
forKey:NSViewAnimationEndFrameKey];
// Animate
theAnim = [[NSViewAnimation alloc] initWithViewAnimations:[NSArray
arrayWithObject:settings]];
[theAnim setDuration:animationDuration];
[theAnim setAnimationBlockingMode:NSAnimationBlocking];
[theAnim startAnimation];
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Re: Swap NSBox content without user seeing it when animation is involved
I was using an NSBox for my convenience to make view swapping easy. The super view has two boxes (dstBox is one of them) and there are three different views that get swapped into and out of the bottom box. Using an NSBox makes this pretty easy. That's why it's designed that way. On Apr 1, 2013, at 1:30 PM, Fritz Anderson fri...@manoverboard.org wrote: On 1 Apr 2013, at 11:11 AM, Brad Stone cocoa-...@softraph.com wrote: Desired action: 1) An NSBox (dstBox) with View A in it's content animates out to the left 2) NSBox's content is replaced with View B 3) NSBox with View B in it's content animates in from the right. Actual action: 1) An NSBox (dstBox) with View A in it's content animates out to the left 2) NSBox with View A in it's content animates in from the right. 3) NSBox's content is replaced with View B 2 and 3 are swapped which is the problem. The motion of the animation works fine. The problem is the NSBox's content (dstBox) doesn't change on the screen until the animation is stopped. I'd like it to be switched somewhere off screen so view B comes in from the right and the user doesn't see the switch happen. Does someone have any suggestions I can try out? It is possible that during a single animation, a view's contents are reduced to an OpenGL texture, and won't update until the animation completes. Or this is an effect of the animationBlockingMode you've chosen. You have two completely different instances of visible content. There's no reason to be stingy. Use two views. Initialize both before use, and track which is current. The performance hit is small, and is complete before the views are visible; barring a pathological case, the memory hit is negligible on a modern computer. (You may be able to remove the (instance?) variable toRight, which you'd otherwise have to keep in sync, and replace it with _activeBox == _rightBox.) (I'm curious: Do you need the decoration of an NSBox? Would an NSView do as well?) — F -- Fritz Anderson Xcode 4 Unleashed: 4.5 supplement for free! http://www.informit.com/store/xcode-4-unleashed-9780672333279 ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
How to: NSPopover Refuse First Responder?
I'm trying to replicate the NSPopover functionality that the new iTunes has and I'm 99% there. The las problem I'm facing is when the NSPopover appears it steals the firstResponder status from the NSSearchField so the user's typing gets interrupted when the popover appears. I tried giving the firstResponser status back after the popover appear but all that does is mess up the user's typing. How can I have a popover appear but have the NSSearchField never relinquish it's firstResponder status or have the NSPopover refuse firstResponder? Thanks ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Syncing w/o iCloud
I have an app in OS X that shares files with an app in iOS. Because of security restrictions some information cannot be shared with iCloud. I'd like to do it over a wire. What are my alternatives? If someone could point me in the right direction I'd appreciate it. Thanks ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Is it possible to read a file icon from iOS file system?
In iOS is there a way I can get access a file's icon? I use [NSWorkspace iconForFile] in OS X. I looked a lot yesterday and I don't **think** there is a way in iOS. My OS X app has an iOS client and the files will be synced using iCloud. My app's document structure is a file package with a core data database and user files in it (Excel, for example). When they open the package with my client in iOS they see a table view with the file names and I want them to see the icons. I'm trying to read the icon from the file as a work-around because the icon is stored as an NSImage in the core data database. I thought if I could avoid modifying my core data model by reading the image from the file and I'll just remove the attribute form the iOS model. To make the image work in iOS will require me to change all the thousands of NSImages in the OS X world which is where I'll probably end up. Thanks ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Is it possible to read a file icon from iOS file system?
Answered my own question. UIDocumentInteractionController @property(nonatomic,readonly) NSArray *icons Discussion This property contains an array of UIImage objects containing the available icons for the given file. The images in the array are sorted from smallest to largest, with the smallest image located at index 0. The returned array always contains at least one image. The images themselves are provided by the system and determined by the UTI of the file. Apps can register custom icons for their associated files by including the appropriate meta information in their Info.plist file. If no custom icon exists, the images in this property represent the generic document icon. On Dec 10, 2012, at 5:34 PM, Brad Stone cocoa-...@softraph.com wrote: In iOS is there a way I can get access a file's icon? I use [NSWorkspace iconForFile] in OS X. I looked a lot yesterday and I don't **think** there is a way in iOS. My OS X app has an iOS client and the files will be synced using iCloud. My app's document structure is a file package with a core data database and user files in it (Excel, for example). When they open the package with my client in iOS they see a table view with the file names and I want them to see the icons. I'm trying to read the icon from the file as a work-around because the icon is stored as an NSImage in the core data database. I thought if I could avoid modifying my core data model by reading the image from the file and I'll just remove the attribute form the iOS model. To make the image work in iOS will require me to change all the thousands of NSImages in the OS X world which is where I'll probably end up. Thanks ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/cocoa-dev%40softraph.com This email sent to cocoa-...@softraph.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: FileWrapper iCloud
The wrapper functionality is a remnant of NSPersistentDocument but I don't use it anymore. Thanks for your answers, this was helpful. On Nov 10, 2012, at 1:28 PM, Sean McBride s...@rogue-research.com wrote: On Sat, 10 Nov 2012 18:09:58 +, Luke Hiesterman said: File wrappers don't make it inherently easier or harder to deal with iCloud. File packages (which you would use file wrappers to represent) can be elegant means of wrapping up document data because it allows for easy separation of distinct components, and are usually recommended if they at all make sense for your application. Unless you use NSPersistentDocument, which still, after all these years, and even after the addition of 'external storage' support in 10.7, doesn't support file wrappers. :( Cheers, -- Sean McBride, B. Eng s...@rogue-research.com Rogue Researchwww.rogue-research.com Mac Software Developer Montréal, Québec, Canada ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
FileWrapper iCloud
Does fileWrapper functionality make it easier or harder or is completely irrelevant for iCloud document functionality? My app used to need the fileWrapper functionality and it's still in there but I don't need it anymore and I want to remove it all. Would it help me keep it? Thanks ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Simple question driving me CRAZY
I have a subclass of a NSViewController. In fact, I created on just as a test with no custom code. I then throw an NSTextView in the NSView that comes with it and then drag from the NSTextView to the .h file to create an outlet. Why why why is it making it unsafe_unretained? I'm using ARC. Why it's it weak like every other subview? The NSTextView is in a NSScrollView which is in the controllers NSView. The NSScrollView is coming in as weak. It's been diving me insane all day. Thanks ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Convert to Objective-C ARC Syntax Error
Dave - I am not linking directly to any of the files causing the errors listed in my original email. I did a search on #import and got: #import Cocoa/Cocoa.h #import Security/Security.h #import Carbon/Carbon.h #import Security/SFKeychainSavePanel.h #import Foundation/Foundation.h #import CoreData/CoreData.h #import CommonCrypto/CommonCryptor.h / #import Security/Security.h #import CoreFoundation/CoreFoundation.h #import CoreFoundation/CFPlugInCOM.h #import CoreServices/CoreServices.h #import QuickLook/QuickLook.h #import Quartz/Quartz.h On Apr 1, 2012, at 7:16 PM, Dave Zarzycki wrote: Brad, This looks similar to Radar 10434539. Let me know if this works: simplify the header includes in your code to just #import Quartz/Quartz.h and just link against Quartz. If your code is already doing this, then let us know. Thanks! davez ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Convert to Objective-C ARC Syntax Error
I used Edit-Refactor-Convert to Objective-C ARC My app works fine but
I'm getting a syntax error in Apple's header files. They're all in the same
place: @private.
There error is '__strong' only applies to objective-c object or block pointer
types; type here is 'void *'
Here's an example:
/* Quartz Composer Composition Renderer */
@interface QCRenderer : NSObject QCCompositionRenderer
{
@private
__strong void* _QCRendererPrivate;
}
I'm thinking I should remove the __strong from these but I'm wondering why
__strong was added here anyway and I'm wary about touching Apple's code.
I'm at a loss.
Thanks
The same things happens in QCPlugIn.h, QCRendered.h, QCCompositionLayer.h,
QCView.h, QCCompositionParameterView.h, QCCompositionPickerView.h,
QCCompositionPickerPanel.h, QCPLugInViewController.h, IKImageBrowserView.h,
IKImageBrowswerCell.h, IKImageBrowserView.h
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Proper Way to use the Sandbox
I modified my Mac shoebox app for sandboxing. My application stores the user info as a series of file packages in a series of directories all rolling up into a Documents folder. It works fine but now I noticed the sandbox directory structure doesn't get backed up with Time Machine. Obviously, when it was in the regular documents folder it got backed up. Now that it's in the app sandbox it seems like it does not. What is the recommended approach to make sure the user data gets backed up by Time Machine? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Recently Opened in Doc
Thanks everyone. In the end, since this is a shoebox app like iPhoto where the
user doesn't access their data via File-Open and the file name doesn't
necessarily make sense to the user I suppressed the Open Recently menu (the
user has a History menu like Safari for that purpose). For the dock menu I
made my own which allowed me to give the user menu item titles that would mean
something to them. I did it two parts. First I did this to suppress the
default functionality:
- (NSUInteger)maximumRecentDocumentCount {
return 0;
}
and then I provide my own using - (NSMenu *)applicationDockMenu:(NSApplication
*)sender. I'm not doing a lot of calculations here so it comes up quickly for
the user.
On Jan 28, 2012, at 5:58 PM, James Merkel wrote:
On 28 Jan 2012 08:46:48 -0800 Quincey Morris wrote:
On Jan 28, 2012, at 08:19 , Brad Stone wrote:
I have a shoebox app like iPhoto where the actual filename is irrelevant to
the user. I control the file name.
What I'd like to do is just capture the menu items before they're displayed
and change the menu titles into something relevant to the user. In the
scheme of things it's a minor way to access the info in my app so if I
could eliminate them that would be OK too. Changing the filename is not an
option at this point.
It seems to me you can subclass NSDocumentController, then override
'noteNewRecentDocument:' to do nothing. Presumably this will keep your
filename off the Open Recent submenu, the Recent Items item on the Apple
menu, and the dock menu. Then you should be able to delete the Open Recent
item itself, and be left with no traces of recent items from your app.
If you wanted to go the extra mile, you could create your own recent-items
implementation, driven from your 'noteNewRecentDocument:' override, and
using the 'applicationDockMenu:' application delegate method, with whatever
document identifiers you want.
My app is not document based so I call noteNewRecentDocumentURL: directly to
add the filename to the Open Recent submenu list.
If I comment that line of code out then the document is not added to the list
as expected. Also, the Dock menu Show Recents shows nothing and the
filename is not added to the Dock menu list.
So yes, noteNewRecentDocument; (which calls noteNewRecentDocumentURL: ) is
the key to the whole thing.
Jim Merkel
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Re: Recently Opened in Doc
I have a shoebox app like iPhoto where the actual filename is irrelevant to the user. I control the file name. What I'd like to do is just capture the menu items before they're displayed and change the menu titles into something relevant to the user. In the scheme of things it's a minor way to access the info in my app so if I could eliminate them that would be OK too. Changing the filename is not an option at this point. On Jan 27, 2012, at 11:19 PM, James Merkel wrote: On 27 Jan 2012 10:20:37 Brad Stone wrote: I'd like to 1) change the menu titles of the recently opened documents listed in the dock menu if I can't do that I'd like to 2) remove the list of recently opened documents all together. I haven't been able to find a way to do this. Can someone provide guidance? Thanks I don't have an answer to your question -- but something I didn't notice before. If you rename a file, the new filename appears in the recently opened files menu (replacing the old filename). However the old filename stays in the doc menu. Seems like that's a bug. Jim Merkel ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Recently Opened in Doc
Thanks Quincey, I've already subclassed my NSDocumentController and I use
noteNewRecentDocument to prevent my index file from showing up in the list.
The code never gets past the continue call because every time this method is
called the only menu item in [openRecentMenu itemArray] is Clear Menu
(except when I quit out).
- (void)noteNewRecentDocument:(NSDocument *)aDocument {
if ([aDocument isKindOfClass:[PNDocument class]]) {
[super noteNewRecentDocument:aDocument];
}
NSMenu *fileMenu = [[[NSApp mainMenu] itemWithTitle:@File] submenu];
if (!fileMenu) {
return;
}
NSMenu *openRecentMenu = [[fileMenu itemWithTitle:@Open Recent] submenu];
if (!openRecentMenu) {
return;
}
for (NSMenuItem *openRecentMenuItem in [openRecentMenu itemArray]) {
NSString *title = [openRecentMenuItem title];
if ([title isEqualToString:@Clear Menu]) {
continue;
}
// code to change the menuItem title
}
}
On Jan 28, 2012, at 11:46 AM, Quincey Morris wrote:
On Jan 28, 2012, at 08:19 , Brad Stone wrote:
I have a shoebox app like iPhoto where the actual filename is irrelevant to
the user. I control the file name.
What I'd like to do is just capture the menu items before they're displayed
and change the menu titles into something relevant to the user. In the
scheme of things it's a minor way to access the info in my app so if I could
eliminate them that would be OK too. Changing the filename is not an option
at this point.
It seems to me you can subclass NSDocumentController, then override
'noteNewRecentDocument:' to do nothing. Presumably this will keep your
filename off the Open Recent submenu, the Recent Items item on the Apple
menu, and the dock menu. Then you should be able to delete the Open Recent
item itself, and be left with no traces of recent items from your app.
If you wanted to go the extra mile, you could create your own recent-items
implementation, driven from your 'noteNewRecentDocument:' override, and using
the 'applicationDockMenu:' application delegate method, with whatever
document identifiers you want.
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Recently Opened in Doc
I'd like to 1) change the menu titles of the recently opened documents listed in the dock menu if I can't do that I'd like to 2) remove the list of recently opened documents all together. I haven't been able to find a way to do this. Can someone provide guidance? Thanks ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Core Animation + Focus Ring
I understand there's an issue with focus rings not appearing in an editable cell if, like I do, you have an NSOutlineView sitting on a view that has Core Animation turned on. Since it's not working and I'm using the latest XCode I'm assuming it's not fixed. I'd be interested in any work-arounds. The best one for me would be for me to programmatically turn on and off the Core Animation checkbox (the equivalent to that in code) on the fly in my code. Any suggestions?___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Confused with block completionHandler
I need to call this method manually but I'm confused how to format the
completionHandler. I don't understand what I'm reading. Can anyone give me an
example of how to define the completionHandler or point me to some
documentation?
[self saveToURL:[self fileURL] ofType:@myDocType
forSaveOperation:NSAutosaveInPlaceOperation completionHandler:^(I'm
confused!!!)];
This is the method definition
- (void)saveToURL:(NSURL *)url ofType:(NSString *)typeName
forSaveOperation:(NSSaveOperationType)saveOperation completionHandler:(void
(^)(NSError *errorOrNil))completionHandler
I've used blocks before like below but I don't understand the syntax above and
I couldn't find an example on the internet or the documentation. Any help
would be appreciated.
[openPanel beginSheetModalForWindow:[NSApp keyWindow]
completionHandler:^(NSInteger theResult) {
if (theResult) {
// some code here
}
Thanks___
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Re: Confused with block completionHandler
All these answers are great. Thanks
On Aug 24, 2011, at 9:01 PM, Graham Cox wrote:
On 25/08/2011, at 10:46 AM, Brad Stone wrote:
I need to call this method manually but I'm confused how to format the
completionHandler. I don't understand what I'm reading. Can anyone give me
an example of how to define the completionHandler or point me to some
documentation?
[self saveToURL:[self fileURL] ofType:@myDocType
forSaveOperation:NSAutosaveInPlaceOperation completionHandler:^(I'm
confused!!!)];
This is the method definition
- (void)saveToURL:(NSURL *)url ofType:(NSString *)typeName
forSaveOperation:(NSSaveOperationType)saveOperation completionHandler:(void
(^)(NSError *errorOrNil))completionHandler
I've used blocks before like below but I don't understand the syntax above
and I couldn't find an example on the internet or the documentation. Any
help would be appreciated.
[openPanel beginSheetModalForWindow:[NSApp keyWindow]
completionHandler:^(NSInteger theResult) {
if (theResult) {
// some code here
}
Separate the block definition from the calling method to make it clearer:
void (^completionHandler)(NSError*) = ^(NSError* error)
{
// here, write the code that makes up the body of the completion handler
}
[self saveToURL:[self fileURL] ofType:@myDoc forSaveOperation:saveOp
completionHandler:completionHandler];
Here we just named the block 'completionHandler', but it could be anything,
such as 'fred' - it's just a variable identifier.
--Graham
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Lion's Auto Save Versions
I'm testing my app in Lion with 4.1 and I'd like to play around with Auto Save and Versions (http://developer.apple.com/technologies/mac/whats-new.html). I've been through the documentation and I can't find anything new about how this works. Is there any documentation how we implement Auto Save and Versions? Is the the same old autosave functionality that's been around for a while? Second question, I have a Core Data document-based app so I've been running under the assumption that it's not recommended use Auto Save. This may be urban legend. If it's real does it still apply? Thanks, Brad___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Help with relationship objects
Quincey, that helps. Thanks
On Jun 28, 2011, at 1:36 PM, Quincey Morris wrote:
On Jun 28, 2011, at 08:40, Brad Stone wrote:
I get the below. Notice the new SRTodoEntity is properly in the todos
relationship but there's also a reference to it outside of the SRNoteEntity.
Intuitively, I would think there should be only one reference to it inside
SRNoteEntity.This is my confusion. Why is it reference twice? How can
I prevent that from happening if this isn't normal?
po [[self managedObjectContext] registeredObjects]
{(
Note uid:330961758011065
creationDate:2009-09-05 13:21:54 -0400
modificationDate:2009-09-06 12:41:02 -0400
todos:Relationship objects for {(
SRTodoEntity: 0x200483d80 (entity: SRTodoEntity; id: 0x2004121e0
x-coredata://614245CF-F03E-4F43-9D7F-98CDCB2899FA/SRTodoEntity/p1 ; data: {
note = 0x2002c4e60
x-coredata://614245CF-F03E-4F43-9D7F-98CDCB2899FA/SRNoteEntity/p1;
todoViewData = nil;
})
)} on 0x200448360
noteData:538
SRTodoEntity: 0x200483d80 (entity: SRTodoEntity; id: 0x2004121e0
x-coredata://614245CF-F03E-4F43-9D7F-98CDCB2899FA/SRTodoEntity/p1 ; data: {
note = 0x2002c4e60
x-coredata://614245CF-F03E-4F43-9D7F-98CDCB2899FA/SRNoteEntity/p1;
todoViewData = nil;
})
)}
You've kinda got hold of the wrong end of this. Core Data is an object graph,
certainly, and any pointer to a managed object is a reference to the
object. There are references to these objects all over your code -- every
stack variable pointer is a reference. In the above example, a reference to
the Todo object exists inside the set of references that represents Note's
relationship to its Todo's. That makes it a really important reference, but
it's certainly never the only one.
By sending a 'registeredObjects' message to the managedObjectContext (which
is *not* an object in the object graph), you've asked it to construct a
collection (a set, as it happens) of references to Core Data objects it knows
about. There's no *relationship* from the MOC to the managed objects, it's
just the MOC's job to know what managed objects are currently in memory.
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Help with relationship objects
I need a little guidance. Did I properly add a relationship object? I don't
know what's normal in this scenario.
I referred to here:
http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/CoreData/Articles/cdUsingMOs.html
I have an entity called SRNoteEntity which has a to-many relationship with
SRTodoEntity in a mutableSet called todos. When I do the following:
[thisNote addTodosObject:todoItem];
I get the below. Notice the new SRTodoEntity is properly in the todos
relationship but there's also a reference to it outside of the SRNoteEntity.
Intuitively, I would think there should be only one reference to it inside
SRNoteEntity.This is my confusion. Why is it reference twice? How can I
prevent that from happening if this isn't normal?
po [[self managedObjectContext] registeredObjects]
{(
Note uid:330961758011065
creationDate:2009-09-05 13:21:54 -0400
modificationDate:2009-09-06 12:41:02 -0400
todos:Relationship objects for {(
SRTodoEntity: 0x200483d80 (entity: SRTodoEntity; id: 0x2004121e0
x-coredata://614245CF-F03E-4F43-9D7F-98CDCB2899FA/SRTodoEntity/p1 ; data: {
note = 0x2002c4e60
x-coredata://614245CF-F03E-4F43-9D7F-98CDCB2899FA/SRNoteEntity/p1;
todoViewData = nil;
})
)} on 0x200448360
noteData:538
SRTodoEntity: 0x200483d80 (entity: SRTodoEntity; id: 0x2004121e0
x-coredata://614245CF-F03E-4F43-9D7F-98CDCB2899FA/SRTodoEntity/p1 ; data: {
note = 0x2002c4e60
x-coredata://614245CF-F03E-4F43-9D7F-98CDCB2899FA/SRNoteEntity/p1;
todoViewData = nil;
})
)}
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Re: Quick Looking big files crash
So it looks like the QuickLook framework has some bugs with Garbage Collection
required.
I contacted Apple tech support and they confirmed this is likely a bug in the
Quick Look framework and asked me to file a bug report. Too bad this cost me
one of my free tech support chits.
In the mean time I'm incorporating QL this way:
NSString *paths = @;
for (NSString *thisPath in srcPathArray) {
NSString *s = @;
if ([paths length] == 0) {
s = [NSString stringWithFormat:@(quoted form of (POSIX
path of \%@\)), thisPath];
} else {
s = [NSString stringWithFormat:@ \ \ (quoted
form of (POSIX path of \%@\)), thisPath];
}
paths = [paths stringByAppendingString:s];
}
NSAppleScript *quickLook = nil;
// do shell script (qlmanage -p (quoted form of (POSIX path of
srcPath)))
NSString *command = [NSString stringWithFormat:@do shell script
(\qlmanage -p \ %@),paths];
quickLook = [[NSAppleScript alloc] initWithSource:command];
[quickLook executeAndReturnError:nil];
On May 3, 2011, at 9:09 PM, Brad Stone wrote:
Interesting, OK, now remember, t this is new to me.
To begin the QL panel I run this required method:
- (void)beginPreviewPanelControl:(QLPreviewPanel *)panel
{
previewPanel = [panel retain];
panel.delegate = self;
panel.dataSource = self;
}
and then it ends with
- (void)endPreviewPanelControl:(QLPreviewPanel *)panel
{
[previewPanel release];
previewPanel = nil;
}
Where QLPreviewPanel* previewPanel; is defined in my header file.
The crash happens after the begin and never gets to the end.
I see here
http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/GarbageCollection/Articles/gcCoreFoundation.html
that to ensure the longevity of Objective-C objects, you should use
CFRetain instead of retain.
I haven't been able to find the correct syntax to replace the retain/release
with CFRetain/CFRelease
On May 3, 2011, at 7:51 PM, Wim Lewis wrote:
On 3 May 2011, at 4:03 PM, Brad Stone wrote:
I have a symbolic breakpoint set and it stops on
auto_refcount_underflow_error, even the small files. If I continue the doc
shows in QL.
Presumably, a few stack frames up, there will be a call to CFRelease() which
is causing the underflow (what would be an over-released zombie in a non-GC
app).
The first thing I'd look for is using CFRelease() when you should call
-release (or vise versa, and the same for retain): code written pre-GC would
treat those as equivalent, but in a GC or optional-GC world they need to be
treated as operating on distinct kinds of refcount.
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selectionIndexesForProposedSelection on mouse Up or mouse Down
For my NSTableView (NSIndexSet *)tableView:(NSTableView *)tableView selectionIndexesForProposedSelection:(NSIndexSet *)proposedSelectionIndexes fires on mouseDown and (void)tableViewSelectionDidChange:(NSNotification *)aNotification fires on mouseUp. For my NSOutlineView (NSIndexSet *)outlineView:(NSOutlineView *)outlineView selectionIndexesForProposedSelection:(NSIndexSet *)proposedSelectionIndexes and (void)outlineViewSelectionDidChange:(NSNotification *)notification fire only on mouseUp. Is this normal behavior? I would prefer the NSOutlineView fire on mouseDown like the NSTableView. Is there a way to change that? (In Mail.app, if you organize by thread selection happens on mouseUp but in iTunes, the podcast outlineView selects on mouseDown).___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: selectionIndexesForProposedSelection on mouse Up or mouse Down
I'm thinking about the perception of the user. When I'm in Mail.app, for example, clicking in the outlineView (organized by thread) and I click on a row it feels less responsive because there's a pause before the row highlights (a pause until I release the mouse button). When I'm in iTunes and the row highlights as soon as the mouse button is down is just feels more responsive. I put in NSLog calls to show me when proposed and didChange get called. NSTableView's delegate gets called on mouseDown while NSOutlineView on mouseUp. On May 12, 2011, at 2:06 PM, Quincey Morris wrote: On May 12, 2011, at 10:05, Brad Stone wrote: For my NSTableView (NSIndexSet *)tableView:(NSTableView *)tableView selectionIndexesForProposedSelection:(NSIndexSet *)proposedSelectionIndexes fires on mouseDown and (void)tableViewSelectionDidChange:(NSNotification *)aNotification fires on mouseUp. For my NSOutlineView (NSIndexSet *)outlineView:(NSOutlineView *)outlineView selectionIndexesForProposedSelection:(NSIndexSet *)proposedSelectionIndexes and (void)outlineViewSelectionDidChange:(NSNotification *)notification fire only on mouseUp. This can't be true. For a start, thinking of the delegate methods as firing on mouse events seems like a way to lead yourself astray. There are *various* ways to change a selection, only some of which start at a mouse down event, and the delegate methods are invoked at *various* points in the procedure depending on circumstances, no matter how it starts. (Well, ...DidChange presumably gets invoked only at the end, but what constitutes the end may vary.) Specifically, if NSOutlineView's 'selectionIndexesForProposedSelection:...' method wasn't ever called until a mouse up event (after an initial mouse down, I mean), it wouldn't be possible to prevent rows from getting selected while the mouse is being dragged, and it *is* possible to do so. There may be specific scenarios where the view decides not to invoke the delegate until mouse up, but that fact just demonstrates the pointlessness of trying to parse the mouse event behavior. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Quick Looking big files crash
I added Quartz and QuickLook frameworks to my garbage-collection-required app
and then added simple Quick Look functionally.
The bigger the file the more errors I get. Small pdfs show no errors, large
ppts, xl or zip files show a bunch of errors and eventually crash. I'm not
familiar with non-garbage collection memory management. I wouldn't even be
able to determine if these errors are telling me I should be. Please help.
Here's what I get when I QL a large file.
proNotes(52698,0x1196fd000) malloc: reference count underflow for 0x201afc920,
break on auto_refcount_underflow_error to debug. (17 times)
proNotes(52698,0x1196fd000) malloc: resurrection error for object 0x201f0a380
while assigning {conservative-block}[352](0x20189fc40)[304] =
CFRunLoopSource[128](0x201f0a380)
garbage pointer stored into reachable memory, break on
auto_zone_resurrection_error to debug (13 times)
Then crash. What should I look for? How should I approach debugging this?
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Re: Quick Looking big files crash
I have a symbolic breakpoint set and it stops on auto_refcount_underflow_error,
even the small files. If I continue the doc shows in QL.
On May 3, 2011, at 6:52 PM, Wim Lewis wrote:
On 3 May 2011, at 3:45 PM, Brad Stone wrote:
Here's what I get when I QL a large file.
proNotes(52698,0x1196fd000) malloc: reference count underflow for
0x201afc920, break on auto_refcount_underflow_error to debug. (17 times)
proNotes(52698,0x1196fd000) malloc: resurrection error for object
0x201f0a380 while assigning {conservative-block}[352](0x20189fc40)[304] =
CFRunLoopSource[128](0x201f0a380)
garbage pointer stored into reachable memory, break on
auto_zone_resurrection_error to debug (13 times)
Then crash. What should I look for? How should I approach debugging this?
Have you tried breaking on auto_refcount_underflow_error and
auto_zone_resurrection_error?
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Re: Quick Looking big files crash
My app stores an NSURL to a file. All I'm doing is acting as the data source
and delegate for QL and giving it access to an NSArray with the URL. I'm not
creating a plugin (or am I misunderstanding you).
On May 3, 2011, at 6:59 PM, Nick Zitzmann wrote:
On May 3, 2011, at 4:45 PM, Brad Stone wrote:
Here's what I get when I QL a large file.
proNotes(52698,0x1196fd000) malloc: reference count underflow for
0x201afc920, break on auto_refcount_underflow_error to debug. (17 times)
proNotes(52698,0x1196fd000) malloc: resurrection error for object
0x201f0a380 while assigning {conservative-block}[352](0x20189fc40)[304] =
CFRunLoopSource[128](0x201f0a380)
garbage pointer stored into reachable memory, break on
auto_zone_resurrection_error to debug (13 times)
Then crash. What should I look for? How should I approach debugging this?
Do this:
1. In your project, add an executable for /usr/bin/qlmanage
2. Give it an argument that points to a file that your importer handles, plus
any flags you need to pass to the task
3. If you haven't done so already, make a symbolic link pointing to your
built importer product, and place it where you normally place your QuickLook
generators (so it loads the built product instead of a copy of the built
product)
4. Make a symbolic breakpoint for auto_zone_resurrection_error
5. Build and debug
If you set up everything correctly, then Xcode's debugger will launch
qlmanage, which will load your plugin, and trigger the problem, and cause the
debugger to break. Good luck; debugging plugins isn't always easy.
Nick Zitzmann
http://www.chronosnet.com/
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Re: Quick Looking big files crash
Interesting, OK, now remember, t this is new to me.
To begin the QL panel I run this required method:
- (void)beginPreviewPanelControl:(QLPreviewPanel *)panel
{
previewPanel = [panel retain];
panel.delegate = self;
panel.dataSource = self;
}
and then it ends with
- (void)endPreviewPanelControl:(QLPreviewPanel *)panel
{
[previewPanel release];
previewPanel = nil;
}
Where QLPreviewPanel* previewPanel; is defined in my header file.
The crash happens after the begin and never gets to the end.
I see here
http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/GarbageCollection/Articles/gcCoreFoundation.html
that to ensure the longevity of Objective-C objects, you should use CFRetain
instead of retain.
I haven't been able to find the correct syntax to replace the retain/release
with CFRetain/CFRelease
On May 3, 2011, at 7:51 PM, Wim Lewis wrote:
On 3 May 2011, at 4:03 PM, Brad Stone wrote:
I have a symbolic breakpoint set and it stops on
auto_refcount_underflow_error, even the small files. If I continue the doc
shows in QL.
Presumably, a few stack frames up, there will be a call to CFRelease() which
is causing the underflow (what would be an over-released zombie in a non-GC
app).
The first thing I'd look for is using CFRelease() when you should call
-release (or vise versa, and the same for retain): code written pre-GC would
treat those as equivalent, but in a GC or optional-GC world they need to be
treated as operating on distinct kinds of refcount.
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Re: Is a file open in another application?
After sleeping on it my choices are to remove the encryption feature or make a big ugly dialog box warning the user if they encrypt a file that's open they will lose their changes. Neither of these approaches are optimum. On Mar 19, 2011, at 11:04 PM, Brad Stone wrote: I do need it to work for any app, not just Word or XL. I guess a poor workaround would be since it's not possible to reliably check if the file is open I can force the user to quit the file's default app before allowing them to encrypt. It's just kind of heavy-handed. On Mar 19, 2011, at 6:20 PM, Charles Srstka wrote: On Mar 19, 2011, at 1:40 PM, Conrad Shultz wrote: On 3/19/11 11:10 AM, Kyle Sluder wrote: On Sat, Mar 19, 2011 at 9:13 AM, Conrad Shultz con...@synthetiqsolutions.com wrote: Note that this will only capture files that are properly opened (i.e. fopen()'d), so you won't catch every apparently open file. For example, if you open a file in vi(m), it creates a hidden scratch file in the same directory and closes the original file. You then edit the scratch file, which is only written out to the original file on save. In this way, the original file is protected from damage due to a crash, but lsof will almost never show it as being open. This is also how Cocoa apps work. They only keep the file open to read its contents. I'm afraid that what Brad wants to do is not possible yet. Are you certain that is a general behavior? Just looking at NSDocument’s default hooks for opening/saving files will show you the answer to that. The ones the user is encouraged to use in the general case read the file into an NSData object on open, and write an NSData out to the file on save. Charles___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cocoa-dev%40softraph.com This email sent to cocoa-...@softraph.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cocoa-dev%40softraph.com This email sent to cocoa-...@softraph.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Is a file open in another application?
Actually, the users are shown files in a NSTableView and they select a menu to encrypt/decrypt. That's where I'll warn them. Thanks for your suggestion. On Mar 20, 2011, at 10:10 AM, Robert Martin wrote: Given all the problems I've seen raised in this thread, I was just thinking that you might just implement the encryption in a droplet, or a drop window - so users can choose when to encrypt rather than having the encryption 'done' to them. I just kept thinking about it, so thought I would mention it! Rob On Mar 19, 2011, at 9:34 AM, Brad Stone wrote: Is there a way for me to tell if a particular file is open in another application? I have a feature I'd like to provide to my users that involves encrypting files that belong to other apps (i.e. my application can encrypt/decrypt a Word or Excel file). I want to prevent the user from encrypting or decrypting the file if it's open (i.e. the file is open in Word). I would like to display a dialog box that says something like myWord Doc.docx is open. Please close it and continue. I've found the ability to find running applications and I've found commentary that says what I'm asking for is not possible. I couldn't find anything in NSWorkspace or NSFileManager to help unless there's a file attribute I don't know about that can tell me. Any ideas? Thanks in advance___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/robmartin%40frontiernet.net This email sent to robmar...@frontiernet.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Is a file open in another application?
Is there a way for me to tell if a particular file is open in another application? I have a feature I'd like to provide to my users that involves encrypting files that belong to other apps (i.e. my application can encrypt/decrypt a Word or Excel file). I want to prevent the user from encrypting or decrypting the file if it's open (i.e. the file is open in Word). I would like to display a dialog box that says something like myWord Doc.docx is open. Please close it and continue. I've found the ability to find running applications and I've found commentary that says what I'm asking for is not possible. I couldn't find anything in NSWorkspace or NSFileManager to help unless there's a file attribute I don't know about that can tell me. Any ideas? Thanks in advance___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Is a file open in another application?
I do need it to work for any app, not just Word or XL. I guess a poor workaround would be since it's not possible to reliably check if the file is open I can force the user to quit the file's default app before allowing them to encrypt. It's just kind of heavy-handed. On Mar 19, 2011, at 6:20 PM, Charles Srstka wrote: On Mar 19, 2011, at 1:40 PM, Conrad Shultz wrote: On 3/19/11 11:10 AM, Kyle Sluder wrote: On Sat, Mar 19, 2011 at 9:13 AM, Conrad Shultz con...@synthetiqsolutions.com wrote: Note that this will only capture files that are properly opened (i.e. fopen()'d), so you won't catch every apparently open file. For example, if you open a file in vi(m), it creates a hidden scratch file in the same directory and closes the original file. You then edit the scratch file, which is only written out to the original file on save. In this way, the original file is protected from damage due to a crash, but lsof will almost never show it as being open. This is also how Cocoa apps work. They only keep the file open to read its contents. I'm afraid that what Brad wants to do is not possible yet. Are you certain that is a general behavior? Just looking at NSDocument’s default hooks for opening/saving files will show you the answer to that. The ones the user is encouraged to use in the general case read the file into an NSData object on open, and write an NSData out to the file on save. Charles___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cocoa-dev%40softraph.com This email sent to cocoa-...@softraph.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Accessing a managedObject property from within an accessor of another property
[A]nd then it occurred to me that a computer is a stupid machine with the ability to do incredibly smart things, while computer programmers are smart people with the ability to do incredibly stupid things. They are, in short, a perfect match. ~Bill Bryson On Feb 22, 2011, at 11:42 PM, Quincey Morris wrote: That's a lot of information you posted. :) Unfortunately, *based on the posted information* there's nothing obviously wrong except that you've shot yourself in the foot using the debugger. Let's look, for example, at what one of the backtraces is telling you. You triggered this by typing 'po self' in the debugger: On Feb 22, 2011, at 19:34, Brad Stone wrote: Breakpoint 28, -[SRMainWindowController toggleLock:] (self=0x2000df5e0, _cmd=0x1000a9239, sender=0x2000df5e0) at SRMainWindowController.m:2897 2897 [note setIsEncrypted:[NSNumber numberWithBool:YES]]; The program being debugged stopped while in a function called from GDB. When the function (_NSPrintForDebugger) is done executing, GDB will silently stop (instead of continuing to evaluate the expression containing the function call). A function called from the debugger as a result of 'po self' failed. What function? It's not clear yet, but it *is* clear what failed -- that function directly or indirectly called 'toggleLock:' *again* -- the method you were in when you started all this debugging activity. Why did it stop? It hit the breakpoint that you put in that code. This backtrace is enlightening, unlike the earlier ones, because it shows what the debugger was trying to do: Here's a backtrace right after po #3 before I'm out of setIsEncrypted backtrace #0 -[SRMainWindowController toggleLock:] (self=0x2000df5e0, _cmd=0x1000a9239, sender=0x2000df5e0) at SRMainWindowController.m:2897 #1 0x00010002dae9 in -[SRMainWindowController getEncryptionKey] (self=0x2000df5e0, _cmd=0x1000a7210) at SRMainWindowController.m:2948 #2 0x000198d2 in -[Note category] (self=0x20027bda0, _cmd=0x7fff85450184) at Note.m:257 #3 0x000189c8 in -[Note description] (self=0x20027bda0, _cmd=0x7fff83c821e8) at Note.m:56 The debugger was trying to execute [note description], which is what it does to get a description to display as a result of 'po note'. Normally, the standard 'description' in NSObject is called, which just prints the address of the object and its class. You, apparently have overridden 'description' in the Note class, and it apparently invokes 'category', which invokes '-[SRMainWindowController getEncryptionKey]', which invokes 'toggleLock:', which is why it hits the breakpoint again. Note that (apparently) if isEncrypted is NO, then 'getEncryptionKey' isn't invoked, and so 'toggleLock' isn't invoked either. That's why setting isFlagged instead didn't crap out in the debugger. Other than indicating an inappropriate design of your 'description' override, there's absolutely no indication of anything wrong here at all. It looks like you've been chasing a chimera. :) Obviously I may be overlooking something, but step 1 is to fix your 'description' method so that it doesn't cause Core Data fetches. #4 0x7fff868a386b in _NSPrintForDebugger () #5 function called from gdb #6 -[Note setIsEncrypted:] (self=0x20027bda0, _cmd=0x1000a6eb8, value=0x7fff70886280) at Note.m:206 #7 0x00010002d5c9 in -[SRMainWindowController toggleLock:] (self=0x2000df5e0, _cmd=0x1000a9239, sender=0x2000867e0) at SRMainWindowController.m:2897 #8 0x7fff83b2afbf in -[NSToolbarButton sendAction:to:] () #9 0x7fff8379c135 in -[NSToolbarItemViewer mouseDown:] () #10 0x7fff8368934f in -[NSWindow sendEvent:] () #11 0x7fff835bea86 in -[NSApplication sendEvent:] () #12 0x7fff835554da in -[NSApplication run] () #13 0x7fff8354e1a8 in NSApplicationMain () #14 0x00016b60 in main (argc=1, argv=0x7fff5fbff628) at main.m:13 ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Accessing a managedObject property from within an accessor of another property
I've been trying for days to determine why I get EXC_BAD_ACCESS when I try to
access a managedObject property from within an accessor of another property?
this code in main.m
[[self note] setValue:@HELLO WORLD forKey:@category];
NSNumber *tmpVal = [NSNumber numberWithBool:![[[self note]
valueForKey:@isEncrypted] boolValue]]; // if I type po [self note] I see the
note description
[[self note] setValue:tmpVal forKey:@isEncrypted]; // if I type po [self
note] after this I get EXEC_BAD_ACCESS
The if statement in the accessor is causing the problem:
- (NSString *)category {
NSString * tmpValue;
[self willAccessValueForKey:@category];
tmpValue = [self primitiveCategory];
[self didAccessValueForKey:@category];
if ([[self valueForKey:@isEncrypted] boolValue]) { // THIS IS CAUSING
THE PROBLEM
// code to decrypt tmpValue
}
return tmpValue;
}
When I replace: if ([[self valueForKey:@isEncrypted] boolValue]) with if (1
== 2 ) or if (1 == 1 ) it works
FYI: in my .h file @property (nonatomic, retain) NSNumber * isEncrypted; and
@dynamic isEncrypted; in .m___
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Fwd: Accessing a managedObject property from within an accessor of another property
FYI - my managedObject is defined as such:
@interface Note : NSManagedObject
{
}
@property (nonatomic, retain) NSNumber * uid;
@property (nonatomic, retain) NSString * category;
@property (nonatomic, retain) NSNumber * isEncrypted;
@interface Note (CoreDataGeneratedPrimitiveAccessors)
- (NSString *)primitiveCategory;
- (void)setPrimitiveCategory:(NSString *)value;
@end
@implementation Note
@dynamic uid;
@dynamic category;
@dynamic isEncrypted;
- (NSString *)category
{
NSString * tmpValue;
[self willAccessValueForKey:@category];
tmpValue = [self primitiveCategory];
[self didAccessValueForKey:@category];
if ([[self valueForKey:@isEncrypted] boolValue]) {
//code to decrypt tmpValue
}
return tmpValue;
}
- (void)setCategory:(NSString *)value
{
if ([[self valueForKey:@isEncrypted] boolValue]) {
// code to encrypt tmpValue
}
[self willChangeValueForKey:@category];
[self setPrimitiveCategory:value];
[self didChangeValueForKey:@category];
}
- (BOOL)validateCategory:(id *)valueRef error:(NSError **)outError
{
// Insert custom validation logic here.
return YES;
}
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Re: Accessing a managedObject property from within an accessor of another property
Yes, all my other classes are prefixed with SR since this one. I haven't
gotten back to fixing this.
On Feb 22, 2011, at 10:22 AM, Uli Kusterer wrote:
On 22.02.2011, at 16:13, Brad Stone wrote:
FYI - my managedObject is defined as such:
@interface Note : NSManagedObject
{
}
That's probably not your problem, but just to eliminate it as a cause: You
should prefix your class names. Apple has been known to create internal
private classes with un-prefixed names (like Account). And once one class
with a particular name has been loaded, requests to load any other class of
the same name will be ignored. Anyone trying to create an instance of such a
class will get the first class that was loaded, which is probably something
completely different.
So I recommend choosing your own three-character prefix (BST?), just in case
there's some private Apple class named Note.
Cheers,
-- Uli Kusterer
The Witnesses of TeachText are everywhere...
http://www.zathras.de
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Re: Accessing a managedObject property from within an accessor of another property
Quincey,
Thanks for relying. It's good to have another developer to talk this thru with.
1) customer accessors for isEncrypted didn't work (I have a set exactly like
category)
2) I'm using garbage collection
3) I tried [note isEncrypted] same error
4) i tried using a local ivar i..e Note *thisNote = [self note], no change
I've been trying these variations for days.
On Feb 22, 2011, at 12:44 PM, Quincey Morris wrote:
On Feb 22, 2011, at 06:19, Brad Stone wrote:
I've been trying for days to determine why I get EXC_BAD_ACCESS when I try
to access a managedObject property from within an accessor of another
property?
this code in main.m
[[self note] setValue:@HELLO WORLD forKey:@category];
NSNumber *tmpVal = [NSNumber numberWithBool:![[[self note]
valueForKey:@isEncrypted] boolValue]]; // if I type po [self note] I see
the note description
[[self note] setValue:tmpVal forKey:@isEncrypted]; // if I type po [self
note] after this I get EXEC_BAD_ACCESS
The if statement in the accessor is causing the problem:
- (NSString *)category {
NSString * tmpValue;
[self willAccessValueForKey:@category];
tmpValue = [self primitiveCategory];
[self didAccessValueForKey:@category];
if ([[self valueForKey:@isEncrypted] boolValue]) { // THIS IS CAUSING
THE PROBLEM
// code to decrypt tmpValue
}
return tmpValue;
}
No answer, but a couple of points:
-- What happens if you write 'note.isEncrypted' (or '[note isEncrypted]')
instead of '[note valueForKey: @isEncrypted]'?
-- What happens if you code your own custom accessors for isEncrypted, like
you've done for category?
-- EXC_BAD_ACCESS is often a symptom of a memory management problem. Is there
a problem with the object being returned by '[self note]'? You didn't show
code for where this is implemented. It's possible that you failed to retain
the object, or, if you're using garbage collection, returned an object with
no strong references, or perhaps you returned a zombie object.
What happens in the above code if you set first a local variable to '[[self
note] retain]' and use the local variable in place of the other references to
'[self note]'?
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Re: Accessing a managedObject property from within an accessor of another property
In my Note entity:
self = (Note *)0x20027bda0
In my .h file have this property defined: @property (nonatomic, retain)
NSNumber * isFlagged; and this in .m @dynamic isFlagged; and no custom accessors
New code in my Note entity:
- (void)setIsEncrypted:(NSNumber *)value {
// see po #1 which I typed here
[self willChangeValueForKey:@isFlagged];
[self setPrimitiveValue:value forKey:@isFlagged];
[self didChangeValueForKey:@isFlagged];
// see po #2 which I typed here
[self willChangeValueForKey:@isEncrypted];
[self setPrimitiveValue:value forKey:@isEncrypted];
[self didChangeValueForKey:@isEncrypted];
// see po #3 which I typed here
}
po #1
po self
Note uid:319649395851582
category:None
isFlagged:0
isEncrypted:0
po #2
po self
Note uid:319649395851582
category:None
isFlagged:1
isEncrypted:0
po #3
po self
Breakpoint 28, -[SRMainWindowController toggleLock:] (self=0x2000df5e0,
_cmd=0x1000a9239, sender=0x2000df5e0) at SRMainWindowController.m:2897
2897[note setIsEncrypted:[NSNumber numberWithBool:YES]];
The program being debugged stopped while in a function called from GDB.
When the function (_NSPrintForDebugger) is done executing, GDB will silently
stop (instead of continuing to evaluate the expression containing
the function call).
Here's a backtrace right after po #3 before I'm out of setIsEncrypted
backtrace
#0 -[SRMainWindowController toggleLock:] (self=0x2000df5e0, _cmd=0x1000a9239,
sender=0x2000df5e0) at SRMainWindowController.m:2897
#1 0x00010002dae9 in -[SRMainWindowController getEncryptionKey]
(self=0x2000df5e0, _cmd=0x1000a7210) at SRMainWindowController.m:2948
#2 0x000198d2 in -[Note category] (self=0x20027bda0,
_cmd=0x7fff85450184) at Note.m:257
#3 0x000189c8 in -[Note description] (self=0x20027bda0,
_cmd=0x7fff83c821e8) at Note.m:56
#4 0x7fff868a386b in _NSPrintForDebugger ()
#5 function called from gdb
#6 -[Note setIsEncrypted:] (self=0x20027bda0, _cmd=0x1000a6eb8,
value=0x7fff70886280) at Note.m:206
#7 0x00010002d5c9 in -[SRMainWindowController toggleLock:]
(self=0x2000df5e0, _cmd=0x1000a9239, sender=0x2000867e0) at
SRMainWindowController.m:2897
#8 0x7fff83b2afbf in -[NSToolbarButton sendAction:to:] ()
#9 0x7fff8379c135 in -[NSToolbarItemViewer mouseDown:] ()
#10 0x7fff8368934f in -[NSWindow sendEvent:] ()
#11 0x7fff835bea86 in -[NSApplication sendEvent:] ()
#12 0x7fff835554da in -[NSApplication run] ()
#13 0x7fff8354e1a8 in NSApplicationMain ()
#14 0x00016b60 in main (argc=1, argv=0x7fff5fbff628) at
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Re: Accessing a managedObject property from within an accessor of another property
SCENARIO 1:
The thread is:
0 - [SRMainWindowController toggleLock:] //self = (SRMainWindowController *)
0x20009d440
1-[NSToolbarButton sendAction:to:]
- (IBAction)toggleLock:(id)sender {
NSError *fetchError = nil;
NSArray *fetchResults;
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription
entityForName:@Note inManagedObjectContext:[self managedObjectContext]];
[fetchRequest setEntity:entity];
fetchResults = [[self managedObjectContext]
executeFetchRequest:fetchRequest error:fetchError];
Note *note = nil;
if (fetchRequest != nil [fetchResults count] == 1) {
note = [fetchResults objectAtIndex:index]; //note = (Note
*)0x20027bfe0
}
if (note) {
[note setIsEncrypted:[NSNumber numberWithBool:YES]]; // see below
}
}
When I jump into note setIsEncrypted:[NSNumber numberWithBool:YES]]; in the
Note managedObject
self = (Note *)0x20027bfe0 // same as above
value = (NSCFBoolean *) 0x7fff70886280
po self
Note uid:319649395851582
category:None
isEncrypted:0
isFlagged:0
(gdb)
- (void)setIsEncrypted:(NSNumber *)value {
[self willChangeValueForKey:@isEncrypted];
[self setPrimitiveValue:value forKey:@isEncrypted];
[self didChangeValueForKey:@isEncrypted];
// see backtrace
}
As soon as I po after the setPrimitive I get:
Breakpoint 26, -[SRMainWindowController toggleLock:] (self=0x20009d440,
_cmd=0x1000a92b1, sender=0x20009d440) at SRMainWindowController.m:2891
2891if (fetchRequest != nil [fetchResults count] == 1) {
The program being debugged stopped while in a function called from GDB.
When the function (_NSPrintForDebugger) is done executing, GDB will silently
stop (instead of continuing to evaluate the expression containing
the function call).
#0 -[Note setIsEncrypted:] (self=0x2000b7600, _cmd=0x1000a6eb8,
value=0x7fff70886280) at Note.m:206
#1 0x00010002d5c9 in -[SRMainWindowController toggleLock:]
(self=0x200078f80, _cmd=0x1000a9239, sender=0x2000a0c20) at
SRMainWindowController.m:2897
#2 0x7fff83b2afbf in -[NSToolbarButton sendAction:to:] ()
#3 0x7fff8379c135 in -[NSToolbarItemViewer mouseDown:] ()
#4 0x7fff8368934f in -[NSWindow sendEvent:] ()
#5 0x7fff835bea86 in -[NSApplication sendEvent:] ()
#6 0x7fff835554da in -[NSApplication run] ()
#7 0x7fff8354e1a8 in NSApplicationMain ()
#8 0x00016b60 in main (argc=1, argv=0x7fff5fbff628) at main.m:13
SCENARIO 2:
I created a second scenario as a test to try to shed more light. Scenario 1
and scenario 2 are **exactly** the same but I'm setting another NSNumber,
isFlagged to YES in the setIsEncrypted accessor and it gets set correctly
without an exception but isEncrypted still causes one.
In SRMainWindowController:
self = (SRMainWindowController *)0x2000df5e0
note = (Note *)0x20027bda0
see earlier email for second
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exception when I try to access a managedObject property from within an accessor of another property
I am getting an exception when I try to access a managedObject property from
within an accessor of another property. As ridiculous as it sounds I've been
at this for over three days. Hopefully someone can point out what I'm doing
wrong.
- (NSString *)category
{
NSString * tmpValue;
[self willAccessValueForKey:@category];
tmpValue = [self primitiveCategory];
[self didAccessValueForKey:@category];
if ([[self valueForKey:@isEncrypted] boolValue]) { // THIS IS CAUSING
THE PROBLEM
NSData *sData = [tmpValue dataUsingEncoding:NSUTF8StringEncoding];
sData = [sData decryptWithString:@userKey];
tmpValue = [SRGlobalVariables getStringFromData:sData];
}
return tmpValue;
}
The error I get is:
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x7fff5f3ffd80
0x7fff843748d7 in _CFArrayReplaceValues ()
The program being debugged was signaled while in a function called from GDB.
GDB has restored the context to what it was before the call.
To change this behavior use set unwindonsignal off
Evaluation of the expression containing the function (_NSPrintForDebugger) will
be abandoned.
When I replace:
if ([[self valueForKey:@isEncrypted] boolValue])
with
if (1 == 2 ) or if (1 == 1 )
I don't get an exception. ___
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Re: Community Suggestions on Encryption
FYI - for anyone trying to solve this problem use this NSData category which puts a user friendly wrapper around CCCryptor. It works perfectly! See this (scroll to the bottom) http://stackoverflow.com/questions/2579453/nsdata-aes-class-encryption-decryption-in-cocoa and here for the source code: https://github.com/nicerobot/objc/tree/master/NSData/NSData%2BAES/ Cheers to the author for sharing. On Feb 16, 2011, at 10:48 AM, Brad Stone wrote: Jean - thanks to your tip I was able to find this code at http://pastie.org/966473. It works very well (I tried to paste it below but it was too big) for NSString ivars. What I'm working on now is to try to figure out how to encrypt/decrypt an NSData iVar. I have an NSData ivar which is binded to an NSTextView. The text view is rich text, the user can drag in jpgs, changes fonts, styles, etc.. If I send it to this code, encrypt it and decrypt it, I get back chinese characters. I don't think the approach is to store the text separately from the rest of the rich text data so I'm investigating how I can write similar code for NSData. On Feb 15, 2011, at 10:52 AM, Jean-Daniel Dupas wrote: Le 15 févr. 2011 à 16:35, Brad Stone a écrit : I've been doing a lot of hunting to find a simple way for me to encrypt an NSString and NSData. I've found a bunch of useful blogs like Cocoa Nut (http://cocoa-nut.de/?tag=encryption, Deusty:Using OpenSSL in Cocoa (http://deusty.blogspot.com/2007/01/using-openssl-in-cocoa.html) and the SSCrypto site (http://septicus.com/products/opensource/). The thing is however that these, among others I've found (like cocoa-aes from 2009), are dated. The SSCrypto files haven't been updated since 2006 and these blogs are of similar age. My question is simple: can I get this done without having to dive deep into the world of OpenSSL? If so, how? I have about four NSString iVars and one NSData iVar I want to encrypt. I wrote my own test code to encrypt/decrypt an NSString on the fly and have it work with core data transparently to the user. I'm at the point now where I need to replace that test code with something real. From all I've read, OpenSSL is the way to go but I've also read it's very difficult to implement. I know nothing about it. What initially attracted me to SSCrypto is that it's simple (i.e. NSData *decryptedText = [crypto decrypt:@aes256]) but I'm worried about using something relatively old and using a third party framework. For AES (and SHA, and HMAC), use CommonCrypto API which is part of libSystem. man CCCryptor for details. (or search in Xcode doc). -- Jean-Daniel ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cocoa-dev%40softraph.com This email sent to cocoa-...@softraph.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Community Suggestions on Encryption
Jean - thanks to your tip I was able to find this code at http://pastie.org/966473. It works very well (I tried to paste it below but it was too big) for NSString ivars. What I'm working on now is to try to figure out how to encrypt/decrypt an NSData iVar. I have an NSData ivar which is binded to an NSTextView. The text view is rich text, the user can drag in jpgs, changes fonts, styles, etc.. If I send it to this code, encrypt it and decrypt it, I get back chinese characters. I don't think the approach is to store the text separately from the rest of the rich text data so I'm investigating how I can write similar code for NSData. On Feb 15, 2011, at 10:52 AM, Jean-Daniel Dupas wrote: Le 15 févr. 2011 à 16:35, Brad Stone a écrit : I've been doing a lot of hunting to find a simple way for me to encrypt an NSString and NSData. I've found a bunch of useful blogs like Cocoa Nut (http://cocoa-nut.de/?tag=encryption, Deusty:Using OpenSSL in Cocoa (http://deusty.blogspot.com/2007/01/using-openssl-in-cocoa.html) and the SSCrypto site (http://septicus.com/products/opensource/). The thing is however that these, among others I've found (like cocoa-aes from 2009), are dated. The SSCrypto files haven't been updated since 2006 and these blogs are of similar age. My question is simple: can I get this done without having to dive deep into the world of OpenSSL? If so, how? I have about four NSString iVars and one NSData iVar I want to encrypt. I wrote my own test code to encrypt/decrypt an NSString on the fly and have it work with core data transparently to the user. I'm at the point now where I need to replace that test code with something real. From all I've read, OpenSSL is the way to go but I've also read it's very difficult to implement. I know nothing about it. What initially attracted me to SSCrypto is that it's simple (i.e. NSData *decryptedText = [crypto decrypt:@aes256]) but I'm worried about using something relatively old and using a third party framework. For AES (and SHA, and HMAC), use CommonCrypto API which is part of libSystem. man CCCryptor for details. (or search in Xcode doc). -- Jean-Daniel ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Community Suggestions on Encryption
I've been doing a lot of hunting to find a simple way for me to encrypt an NSString and NSData. I've found a bunch of useful blogs like Cocoa Nut (http://cocoa-nut.de/?tag=encryption, Deusty:Using OpenSSL in Cocoa (http://deusty.blogspot.com/2007/01/using-openssl-in-cocoa.html) and the SSCrypto site (http://septicus.com/products/opensource/). The thing is however that these, among others I've found (like cocoa-aes from 2009), are dated. The SSCrypto files haven't been updated since 2006 and these blogs are of similar age. My question is simple: can I get this done without having to dive deep into the world of OpenSSL? If so, how? I have about four NSString iVars and one NSData iVar I want to encrypt. I wrote my own test code to encrypt/decrypt an NSString on the fly and have it work with core data transparently to the user. I'm at the point now where I need to replace that test code with something real. From all I've read, OpenSSL is the way to go but I've also read it's very difficult to implement. I know nothing about it. What initially attracted me to SSCrypto is that it's simple (i.e. NSData *decryptedText = [crypto decrypt:@aes256]) but I'm worried about using something relatively old and using a third party framework. What suggestions does the community have on the best approach? Thanks Brad___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Abstract Text Example and Question
Matt and Graham - I knew there was a better approach. I'll look into the things you suggest. On Feb 10, 2011, at 10:19 AM, Matt Neuburg wrote: On Wed, 9 Feb 2011 22:04:58 -0500, Brad Stone cocoa-...@softraph.com said: I made this code to remove any duplicate words from a large group of text. if ([resultArray indexOfObject:s] == NSNotFound) There's the problem. Who knows how this is implemented? You could be searching the entire array one entry at a time all the way to the end for every single word (if the text goes, say, fee fi fo fum fum fum fum fum...). That's why the usual algorithm for this sort of thing involves a dictionary, not an array; access to a key in a dictionary is guaranteed fast because of hashing. Basically you're making a histogram, which is a well-solved problem. If order matters, use both the dictionary *and* some other storage to keep track of the words in the order in which they actually appear. m. -- matt neuburg, phd = m...@tidbits.com, http://www.apeth.net/matt/ A fool + a tool + an autorelease pool = cool! AppleScript: the Definitive Guide - Second Edition! http://www.apeth.net/matt/default.html#applescriptthings ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Abstract Text Example and Question
I made this code to remove any duplicate words from a large group of text. The
result is stored in an index file so the text doesn't need to make sense. I'm
removing the duplicates to save space in the index file. I was wondering if
anyone had a suggestion for a more efficient way to accomplishing this. I'm
guessing the separations and joins are taking up memory and slowing things down
(even though I'm not positive about that). Using this code reduced the index
file size form 4.7MB to 2.7MB.
Thanks
- (NSString *)abstractText:(NSString *)srcString {
NSMutableArray *resultArray = [[NSMutableArray alloc] init];
NSArray *textArray = [srcString componentsSeparatedByString:@ ];
for (NSString *s in textArray) {
s = [s stringByTrimmingCharactersInSet:[NSCharacterSet
alphanumericCharacterSet]];
s = [s lowercaseString];
if ([resultArray indexOfObject:s] == NSNotFound) {
[resultArray addObject:s];
}
}
NSString *resultString = nil;
if ([resultArray count] 0) {
resultString = [resultArray componentsJoinedByString:@ ];
} else {
resultString = srcString;
}
return resultString;
}___
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Predicate Help
I'm been trying for two days to get this to work. I've googled, read the
Predicate Programming Guide - I guess I just don't get it.
I'm trying to develop a predicate to populate a mutable array . I have an
array that contains SRIndexObjects.
@interface SRIndexObject : NSObject NSCoding {
NSNumber *uid;
NSArray * todos; // this is an array of SRIndexTodo objects
}
@interface SRIndexTodo : NSObject {
NSDate * todoCompletedDate;
}
My goal is to find all the SRIndexObjects that have at least one todo where the
completed date is greater than or equal to a particular date.
this is the code:
NSPredicate *hasTodosPredicate = [NSPredicate predicateWithFormat:@todos[SIZE]
0]; // this works fine if I use this as the only predicate
NSPredicate *compDatePredicate = [NSPredicate predicateWithFormat:@ANY
todos.todoCompletedDate = %@, targetDate];
NSPredicate *predicate = [NSCompoundPredicate
andPredicateWithSubpredicates:[NSArray arrayWithObjects:hasTodosPredicate,
compDatePredicate, nil]];
NSLog(@%@, predicate);
[currentFoundArray addObjectsFromArray:[tempArray
filteredArrayUsingPredicate:predicate]]; // tempArray has 2000 SRIndexObjects,
currentFoundArray is mutable and empty
This is the result:
2011-01-12 18:43:43.090 testApp[37874:a0f] todos[SIZE] 0 AND ANY
todos.todoCompletedDate = CAST(316328400.00, NSDate)
2011-01-12 18:44:24.957 testApp[37874:a0f] -[NSNull compare:]: unrecognized
selector sent to instance 0xa036f6a0
What I think is happening is since todos.todoCompletedDate can be nil it's
causing the failure (the NSNull compare). I just don't know how to build a
predicate to deal with that since I want to add the object to currentFoundArray
if at least one is not nil and the date is = targetDate.
Help would be greatly appreciated.
Thanks - Brad___
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Re: Predicate Help
So cool!
On Jan 12, 2011, at 7:05 PM, Dave DeLong wrote:
SUBQUERY! :)
NSArray *objects = ...; //your array of SRIndexObjects
NSPredicate * f = [NSPredicate predicateWithFormat:@SUBQUERY(todos, $t,
$t.todoCompletedDate = %@)@count 0, aParticularDate];
NSArray *filteredObjects = [objects filteredArrayUsingPredicate:f];
Explanation:
SUBQUERY() is kind of like a second level of filtering. The first parameter
is a collection (or keypath to one, etc), the second parameter is a variable
name (that iteratively represents each item in the collection), and the third
parameter is a predicate.
So:
SUBQUERY(todos, $t, $t.todoCompletedDate = %@)
This has the same effect as:
NSArray * filtered = [todos filteredArrayUsingPredicate:[NSPredicate
predicateWithFormat:@todoCompletedDate = %@, aParticularDate]];
Notice that it returns a collection, which means we can use the results in a
larger expression. In this case, we're going to invoke the @count keyPath on
it, which returns the number of items in the collection, which we'll compare
against 0.
In a nutshell, that's a predicate that will find all objects in the source
array that have at least one todo object, where that todo object's
todoCompletedDate is on or after aParticularDate.
Sweet, huh?
Dave
On Jan 12, 2011, at 3:58 PM, Brad Stone wrote:
I'm been trying for two days to get this to work. I've googled, read the
Predicate Programming Guide - I guess I just don't get it.
I'm trying to develop a predicate to populate a mutable array . I have an
array that contains SRIndexObjects.
@interface SRIndexObject : NSObject NSCoding {
NSNumber *uid;
NSArray * todos; // this is an array of SRIndexTodo objects
}
@interface SRIndexTodo : NSObject {
NSDate * todoCompletedDate;
}
My goal is to find all the SRIndexObjects that have at least one todo where
the completed date is greater than or equal to a particular date.
this is the code:
NSPredicate *hasTodosPredicate = [NSPredicate
predicateWithFormat:@todos[SIZE] 0]; // this works fine if I use this
as the only predicate
NSPredicate *compDatePredicate = [NSPredicate predicateWithFormat:@ANY
todos.todoCompletedDate = %@, targetDate];
NSPredicate *predicate = [NSCompoundPredicate
andPredicateWithSubpredicates:[NSArray arrayWithObjects:hasTodosPredicate,
compDatePredicate, nil]];
NSLog(@%@, predicate);
[currentFoundArray addObjectsFromArray:[tempArray
filteredArrayUsingPredicate:predicate]]; // tempArray has 2000
SRIndexObjects, currentFoundArray is mutable and empty
This is the result:
2011-01-12 18:43:43.090 testApp[37874:a0f] todos[SIZE] 0 AND ANY
todos.todoCompletedDate = CAST(316328400.00, NSDate)
2011-01-12 18:44:24.957 testApp[37874:a0f] -[NSNull compare:]: unrecognized
selector sent to instance 0xa036f6a0
What I think is happening is since todos.todoCompletedDate can be nil it's
causing the failure (the NSNull compare). I just don't know how to build a
predicate to deal with that since I want to add the object to
currentFoundArray if at least one is not nil and the date is = targetDate.
Help would be greatly appreciated.
Thanks - Brad___
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___
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A Quick Look contribution and a question
I'm submitting this code for anyone who needs a quick hack to get Quick Look
working. It's a hack because it's using AppleScript and the Quick Look Server
debug and management tool. If you send an array of paths this will bring them
up in a Quick Look window.
I don't think the Quick Look documentation is as robust as it can be, I'm still
trying to figure out how to do the same thing the right way.
- (void)quickLook:(NSArray *)srcPathArray {
//build the paths string
NSString *paths = @;
for (NSString *thisPath in srcPathArray) {
NSString *s = @;
if ([paths length] == 0) {
s = [NSString stringWithFormat:@(quoted form of (POSIX
path of \%...@\)), thisPath];
} else {
s = [NSString stringWithFormat:@ \ \ (quoted
form of (POSIX path of \%...@\)), thisPath];
}
paths = [paths stringByAppendingString:s];
}
NSAppleScript *quickLook = nil;
// do shell script (qlmanage -p (quoted form of (POSIX path of
srcPath)))
NSString *command = [NSString stringWithFormat:@do shell script
(\qlmanage -p \ %@),paths];
quickLook = [[NSAppleScript alloc] initWithSource:command];
[quickLook executeAndReturnError:nil];
}___
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Re: Strange error solved by turning off Non-contiguous Layout
Yeah, that was it. I get by the place where the it used to deadlock. I'm make a note of that! Thanks On Dec 26, 2010, at 10:57 PM, Nick Zitzmann wrote: On Dec 26, 2010, at 5:00 PM, Brad Stone wrote: Ken - I never knew how to take a sample of the processes. It's given me some visibility into the spinning beach ball. I still get the deadlock in the commitEditing which is in saveDocumentWithDelegate only on some documents when I edit text that requires me to scroll an NSTextView. Does anything jump out at you in this call graph? What is NSOperation waiting for? Did you turn on the can draw concurrently option on the text view or its scroll view? If so, then turn that off. That option will not work, except in views that specifically support threaded drawing. IIRC, none of the AppKit's views support this (except for NSButton and NSProgressIndicator, but they have separate APIs for this for historical reasons). Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Strange error solved by turning off Non-contiguous Layout
Ken - I never knew how to take a sample of the processes. It's given me some visibility into the spinning beach ball. I still get the deadlock in the commitEditing which is in saveDocumentWithDelegate only on some documents when I edit text that requires me to scroll an NSTextView. Does anything jump out at you in this call graph? What is NSOperation waiting for? Call graph: 2761 Thread_118 DispatchQueue_1: com.apple.main-thread (serial) 2761 start 2761 main 2761 NSApplicationMain 2761 -[NSApplication run] 2761 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] 2761 _DPSNextEvent 2761 BlockUntilNextEventMatchingListInMode 2761 ReceiveNextEventCommon 2761 RunCurrentEventLoopInMode 2761 CFRunLoopRunSpecific 2761 __CFRunLoopRun 2761 __NSFireTimer 2761 -[SRMainWindowController checkToSaveDirtyDoc:] 2761 -[PNDocument saveDocumentWithDelegate:didSaveSelector:contextInfo:] 2761 -[NSManagedObjectContext(NSEditorAndEditorRegistration) commitEditing] 2761 -[NSController commitEditing] 2761 -[NSValueBinder commitEditing] 2761 -[NSValueBinder discardEditing] 2761 -[_NSTextPlugin showValue:inObject:] 2761 -[NSTextStorage endEditing] 2761 -[NSTextStorage processEditing] 2761 -[NSTextStorage _notifyEdited:range:changeInLength:invalidatedRange:] 2761 -[NSLayoutManager textStorage:edited:range:changeInLength:invalidatedRange:] 2761 -[NSLayoutManager(NSPrivate) _resizeTextViewForTextContainer:] 2761 -[NSTextView(NSPrivate) _setFrameSize:forceScroll:] 2761 -[NSView setFrameSize:] 2761 -[NSView _postFrameChangeNotification] 2761 -[NSClipView _reflectDocumentViewFrameChange] 2761 -[NSClipView _scrollTo:animate:] 2761 -[NSScrollView scrollClipView:toPoint:] 2761 -[NSClipView scrollToPoint:] 2761 -[NSClipView _immediateScrollToPoint:] 2761 -[NSView displayIfNeeded] 2761 -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] 2761 -[NSOperationQueue waitUntilAllOperationsAreFinished] 2761 -[NSOperation waitUntilFinished] 2761 -[__NSOperationInternal waitUntilFinished] 2761 _pthread_cond_wait 2761 __semwait_signal 2761 Thread_1166672 DispatchQueue_2: com.apple.libdispatch-manager (serial) 2761 start_wqthread 2761 _pthread_wqthread 2761 _dispatch_worker_thread2 2761 _dispatch_queue_invoke 2761 _dispatch_mgr_invoke 2761 kevent 2761 Thread_1166673 DispatchQueue_6: com.apple.root.default-priority (serial) 2761 start_wqthread 2761 _pthread_wqthread 2761 _dispatch_worker_thread2 2761 _dispatch_call_block_and_release 2761 __doStart2 2761 -[__NSOperationInternal start] 2761 -[_NSViewDrawOperation main] 2761 -[NSTextView _drawRect:clip:] 2761 -[NSTextView drawRect:] 2761 -[NSConcreteTextStorage _lockForReading] 2761 -[NSViewHierarchyLock lockForReadingWithExceptionHandler:] 2761 _pthread_cond_wait 2761 __semwait_signal On Dec 22, 2010, at 12:37 AM, Ken Thomases wrote: On Dec 21, 2010, at 10:08 PM, Brad Stone wrote: I have an NSTextView that has about 1,900
Re: Strange error solved by turning off Non-contiguous Layout
I don't have a lot of experiencing debugging deadlocks. The commitEditing call never returns, just spinning beach ball, so that makes it difficult to debug. I did notice that edits before a certain number of characters commits fine after that - deadlock. Weird. On Dec 22, 2010, at 12:27 PM, Douglas Davidson wrote: On Dec 21, 2010, at 8:08 PM, Brad Stone wrote: I have an NSTextView that has about 1,900 characters in it. Just regular text. If I edit the text and save my app hangs at [[self managedObjectContext] commitEditing]; I found setting nonContinuousLayout to NO in the NSTextView prevents the hang but that's not really solving the problem. Here's what's strange. If I expand the window so the all the text shows without the scroll bar it doesn't hang. If I edit the same text but scroll down the get it I get a hang. If I set nonContiguousLayout to NO it doesn't hang in either scenario. What advice can anyone give as to how I can address this problem? The obvious workaround to try would be to call [layoutManager ensureLayoutForCharacterRange:NSMakeRange(0, textLength)] at some point before you save. That will cause the entire text to be laid out, as it would be if the window showed all of it. It would also be helpful if you could file a bug with enough information to reproduce this. Douglas Davidson ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Strange error solved by turning off Non-contiguous Layout
I have an NSTextView that has about 1,900 characters in it. Just regular text. If I edit the text and save my app hangs at [[self managedObjectContext] commitEditing]; I found setting nonContinuousLayout to NO in the NSTextView prevents the hang but that's not really solving the problem. Here's what's strange. If I expand the window so the all the text shows without the scroll bar it doesn't hang. If I edit the same text but scroll down the get it I get a hang. If I set nonContiguousLayout to NO it doesn't hang in either scenario. What advice can anyone give as to how I can address this problem? Thanks, Brad___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Converting an AttributedString into NSData for an NSTextView
I have an NSMutableString that I want to set as the NSData source for an NSTextView. I'm stuck and don't know how to do it. I'm importing about 4,000 XML files and I have to programmatically create the attributedString for each one, there's no way around it. How do I convert an NSMutableString to NSData so it can be the data source for an NSTextView? Thanks___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Converting an AttributedString into NSData for an NSTextView
I've been programming in Cocoa for 12 months now so I may not understand the subject fully but my NSTextView Data binding is connected to a Core Data attribute of type Binary Data (NSData) and this works when I manually type in text, set some attributes like underline or font, save it and reopen it. Since I have 4,000 files to cycle through I want to do this all programatically. To simplify things I tried to do this with an NSString instead of an NSAttributableString. I wrote a test app that creates a new document, pulls the entity newNote and uses the following code to set the NSData object: NSData *noteData = [s dataUsingEncoding:NSUnicodeStringEncoding]; [newNote setValue:noteData forKey:@noteData]; I then save the document and loop around again. This works fine with the NSString. After the 4,000 are loaded in, if I open one of the documents in my interface and look in the textView I see the string. I guess don't fully understand how to repeat this process with an AttributedString. I don't see how NSTextStorage applies in this scenario. Maybe I'm skipping a step. On Sep 25, 2010, at 11:28 AM, Keary Suska wrote: On Sep 25, 2010, at 9:12 AM, Brad Stone wrote: I have an NSMutableString that I want to set as the NSData source for an NSTextView. I'm stuck and don't know how to do it. I'm importing about 4,000 XML files and I have to programmatically create the attributedString for each one, there's no way around it. How do I convert an NSMutableString to NSData so it can be the data source for an NSTextView? NSTextView doesn't use NSData as its data source--it uses NSTextStorage. You can get its content as a mutable string using -mutableString and manipulate it. 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 arch...@mail-archive.com
Re: One last try: how do you make a bookmark bar like Safari?
These are all great resources. Thanks On Sep 20, 2010, at 6:08 PM, John Nairn wrote: On Sep 20, 2010, at 12:02 PM, cocoa-dev-requ...@lists.apple.com wrote: I sent this out last week and go no replies. Please excuse me for sending it out again but I want to try one more time in case someone has an answer. I've been spending some time searching and thinking about how I can make a bookmark bar like in Safari or Firefox. It has some of the characteristics of a toolbar especially when the window is small it puts the remaining toolbar items in a drop-down menu but it also has some of the properties of a collectionView with editable views, reordering and dragging. I've seen some threads here but haven't found anything definitive. How have any of you implemented one? You need a custom control. I found this one http://www.positivespinmedia.com/dev/PSMTabBarControl.html which is freely available under BSD license. It looks good, but I have not gotten as far yet as implementing it in any of my applications. --- John Nairn GEDitCOM - Genealogy Software for the Macintosh http://www.geditcom.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
One last try: how do you make a bookmark bar like Safari?
I sent this out last week and go no replies. Please excuse me for sending it out again but I want to try one more time in case someone has an answer. I've been spending some time searching and thinking about how I can make a bookmark bar like in Safari or Firefox. It has some of the characteristics of a toolbar especially when the window is small it puts the remaining toolbar items in a drop-down menu but it also has some of the properties of a collectionView with editable views, reordering and dragging. I've seen some threads here but haven't found anything definitive. How have any of you implemented one? Thanks___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
How to: Bookmark bar like Safari?
I've been spending some time searching and thinking about how I can make a bookmark bar like in Safari or Firefox. It has some of the characteristics of a toolbar especially when the window is small it puts the remaining toolbar items in a drop-down menu but it also has some of the properties of a collectionView with editable views, reordering and dragging. I've seen some threads here but haven't found anything definitive. How have any of you implemented one? Thanks___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Highlight Text like with FIne
Ross - That looks like a good solution, basically, I'm highlighting the
background versus the actual text. Very clever. This approach has the added
advantage of preventing the user from accidentally deleting text because it's
not a real highligh. I'll try this out tonight.
Using this code I was able to highlight text in an textView but again, it's
highlighting the text, not the background:
NSString *s = [textView string];
NSMutableArray *selRangeArray = [[NSMutableArray alloc] init];
if ([s length] 0) {
NSRange r = [s rangeOfString:searchText
options:NSCaseInsensitiveSearch range:NSMakeRange(0, [s length])];
while (r.location != NSNotFound) {
[selRangeArray addObject:[NSValue
valueWithRange:r]];
NSUInteger newStart = r.location + r.length;
r = [s rangeOfString:searchText
options:NSCaseInsensitiveSearch range:NSMakeRange(newStart, [s length] -
newStart)];
}
if ([selRangeArray count] 0) {
[textView setSelectedRanges:selRangeArray];
}
}
On Sep 6, 2010, at 1:19 PM, Ross Carter wrote:
On Sep 5, 2010, at 7:33 PM, Brad Stone wrote:
I want to highlight different substrings contained in controls in a window
(two different comboBoxes for example) programmatically when the user is
searching for a subString. I can do this for one comboBox but not both
simultaneously. Here's one.
NSString *s = [titleComboBox stringValue];
NSRange r = [s rangeOfString:searchText options:NSCaseInsensitiveSearch
range:NSMakeRange(0, [s length])];
[titleComboBox selectText:w];
if (r.location != NSNotFound) {
// this is needed to select the substring
NSText *textEditor = [w fieldEditor:YES forObject:titleComboBox];
[textEditor setSelectedRange:r];
}
But this only highlights the text in the titleComboBox. If I then repeat
this to highlight the text in the categoryComboBox by repeating the code,
titleComboBox gets deselected and categoryComboBox gets selected. I want to
highlight them both simultaneously. I'd also rather use the big yellow
highlight like with the find panel (but that's later).
Is this possible?
Your code will not work because there can be only one active field editor at
a time, and you are controlling the text by manipulating the selectedRange
property of the field editor.
I would be inclined to try using attributed strings to show the selection.
Maybe something like this:
if (r.location != NSNotFound) {
NSMutableAttributedString *stringWithSelection =
[[NSMutableAttributedString alloc] initWithString:s];
[stringWithSelection addAttribute: NSBackgroundColorAttributeName
value:[NSColor yellowColor] range:r];
// set control value to stringWithSelection, using whatever technique
is appropriate
[stringWithSelection release];
}
To deselect, just set the control value to [[control attributedStringValue]
string].
There are other ways to do what you need. This might be the most
straightforward.
-Ross
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Highlight Text like with FIne
I want to highlight different substrings contained in controls in a window (two
different comboBoxes for example) programmatically when the user is searching
for a subString. I can do this for one comboBox but not both simultaneously.
Here's one.
NSString *s = [titleComboBox stringValue];
NSRange r = [s rangeOfString:searchText options:NSCaseInsensitiveSearch
range:NSMakeRange(0, [s length])];
[titleComboBox selectText:w];
if (r.location != NSNotFound) {
// this is needed to select the substring
NSText *textEditor = [w fieldEditor:YES forObject:titleComboBox];
[textEditor setSelectedRange:r];
}
But this only highlights the text in the titleComboBox. If I then repeat this
to highlight the text in the categoryComboBox by repeating the code,
titleComboBox gets deselected and categoryComboBox gets selected. I want to
highlight them both simultaneously. I'd also rather use the big yellow
highlight like with the find panel (but that's later).
Is this possible?
Thanks___
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Re: stringWithQuotedPrintableString almost perfect
You know, sometimes it just helps getting other developers perspectives to help
you look at a bug from a different angle (even though you think you're doing
this by yourself). The code works fine for me too! My problem is I had the
WRONG ENCODING when I use the converted string to create the data object of my
NSTextView. DUH!
s = [dict objectForKey:@Note];
NSData *noteData = [s dataUsingEncoding: NSUnicodeStringEncoding]; // I had
NSASCIIStringEncoding for some unknown reason!
[newNote setValue:noteData forKey:@noteData];
Stephen - thanks for your mods. I'll study what you did and fix my code.
On Aug 20, 2010, at 12:28 AM, Quincey Morris wrote:
On Aug 19, 2010, at 19:27, Brad Stone wrote:
Can someone help me figure out why (brackets not included) [• m]
(which is, on the Mac, an option-8 character, a tab character and a
lowercase m) converts to (brackets not included [• m] ?
The source text is quoted-printable UTF-8 text I created and saved in an
XML file in a different application. All the other characters and line
returns translate perfectly but this option-8 tab combination does not.
Here is my source code.
Thanks
- (NSString *)stringWithQuotedPrintableString:(const char *)qpString {
const char *p = qpString;
char *ep, *utf8_string = malloc(strlen(qpString) * sizeof(char));
NSParameterAssert( utf8_string );
ep = utf8_string;
while( *p ) {
switch( *p ) {
case '=':
NSAssert1( *(p + 1) != 0 *(p + 2) != 0,
@Malformed QP String: %s, qpString);
if( *(p + 1) != '\r' ) {
int i, byte[2];
for( i = 0; i 2; i++ ) {
byte[i] = *(p + i + 1);
if( isdigit(byte[i]) )
byte[i] -= 0x30;
else
byte[i] -= 0x37;
if (byte[i] = 0 byte[i]
16) {
continue;
}
NSAssert( byte[i] = 0
byte[i] 16, @bad encoded character);
}
*(ep++) = (char) (byte[0] 4) |
byte[1];
}
p += 3;
continue;
default:
*(ep++) = *(p++);
continue;
}
}
return [[NSString alloc] initWithBytesNoCopy:utf8_string
length:strlen(utf8_string) encoding:NSUTF8StringEncoding freeWhenDone:YES];
}
It would be a help if you could show the hex bytes actually being passed to
'initWithBytesNoCopy...'.
I note, however, that if your input contains the sequence =\r, your code
above will eat the character following the '\r'. That sort of looks like a
bug.
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stringWithQuotedPrintableString almost perfect
Can someone help me figure out why (brackets not included) [• m] (which is,
on the Mac, an option-8 character, a tab character and a lowercase m) converts
to (brackets not included [• m] ?
The source text is quoted-printable UTF-8 text I created and saved in an XML
file in a different application. All the other characters and line returns
translate perfectly but this option-8 tab combination does not.
Here is my source code.
Thanks
- (NSString *)stringWithQuotedPrintableString:(const char *)qpString {
const char *p = qpString;
char *ep, *utf8_string = malloc(strlen(qpString) * sizeof(char));
NSParameterAssert( utf8_string );
ep = utf8_string;
while( *p ) {
switch( *p ) {
case '=':
NSAssert1( *(p + 1) != 0 *(p + 2) != 0,
@Malformed QP String: %s, qpString);
if( *(p + 1) != '\r' ) {
int i, byte[2];
for( i = 0; i 2; i++ ) {
byte[i] = *(p + i + 1);
if( isdigit(byte[i]) )
byte[i] -= 0x30;
else
byte[i] -= 0x37;
if (byte[i] = 0 byte[i]
16) {
continue;
}
NSAssert( byte[i] = 0
byte[i] 16, @bad encoded character);
}
*(ep++) = (char) (byte[0] 4) |
byte[1];
}
p += 3;
continue;
default:
*(ep++) = *(p++);
continue;
}
}
return [[NSString alloc] initWithBytesNoCopy:utf8_string
length:strlen(utf8_string) encoding:NSUTF8StringEncoding freeWhenDone:YES];
}
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Re: Reading in UTF-8 to Data
The XML file is from an app I wrote a long time ago and contains thousands of documents similar to this one. Once Nick mentioned quotable-printable I remembered I used that. It was so long ago I had forgotten. There are many users that use the app and each of them have hundreds, if not thousands, of individual XML files and they need this functionality. My last resort would be to send out update for the old app to all the users to reprocess their XML files w/o the quoted-printable but you know how that will go. If I could only get Cocoa to do it I'd be done. On Jul 15, 2010, at 9:20 PM, Greg Guerin wrote: Brad Stone wrote: Yes, quoted-printable. That's precisely it but in doing my research in the documentation and on the internet it doesn't seem like it's a simple process especially for someone like me with 9 months of Cocoa development experience. There is nothing apparent in your code that would cause quoted-printable to magically appear. If it's not your code, the next most obvious candidate is your data. Exactly where is your data coming from, and exactly how did it get there? Maybe you have a glitch somewhere along your data-production pathway, that's unexpectedly producing quoted-printable. That pathway includes all uploads, file-transfers, file copies, etc. It even includes any editor you used the last time you looked at the original XML file. If the editor is helping you by interpreting quoted-printable, then you might want to try something simpler, like the 'cat' command in Terminal.app, or even the 'hexdump -C' command. If you're not a Terminal person, HexFiend is your friend (google it). -- GG ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cocoa-dev%40softraph.com This email sent to cocoa-...@softraph.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Reading in UTF-8 to Data
Kyle - I have my legacy file format perfectly parsed into an NSDictionary and my code works fine from the NSOpenPanel to select the legacy document to creating the new document in Cocoa, adding it to the managedObjectContext, inserting the data in all the right places and saving the new document. The process would be perfect if I could decode the quoted-printable text in Cocoa. That's the only thing that's still incomplete. What I meant when I said Cocoa to do it was that I would like to decode in Cocoa versus having to create additional code in the legacy app to create a new file format w/o the quoted-printable encoding. Hopefully that's a clearer explanation. Does anyone have any code snippets they can share that will decode quoted-printable? On Jul 16, 2010, at 11:31 AM, Kyle Sluder wrote: On Fri, Jul 16, 2010 at 5:58 AM, Brad Stone cocoa-...@softraph.com wrote: The XML file is from an app I wrote a long time ago and contains thousands of documents similar to this one. Once Nick mentioned quotable-printable I remembered I used that. It was so long ago I had forgotten. There are many users that use the app and each of them have hundreds, if not thousands, of individual XML files and they need this functionality. My last resort would be to send out update for the old app to all the users to reprocess their XML files w/o the quoted-printable but you know how that will go. If I could only get Cocoa to do it I'd be done. The framework knows nothing about your file format, so you can't get Cocoa to do it. You'll simply need to perform the conversion yourself when you read the file in from disk. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Reading in UTF-8 to Data
Agreed Thomas but code snippets have been elusive. On Jul 16, 2010, at 1:00 PM, Thomas Engelmeier wrote: Am 16.07.2010 um 14:58 schrieb Brad Stone: The XML file is from an app I wrote a long time ago and contains thousands of documents similar to this one. Once Nick mentioned quotable-printable I remembered I used that. It was so long ago I had forgotten. There are many users that use the app and each of them have hundreds, if not thousands, of individual XML files and they need this functionality. My last resort would be to send out update for the old app to all the users to reprocess their XML files w/o the quoted-printable but you know how that will go. If I could only get Cocoa to do it I'd be done. Run, don't walk, and find some code snippet that removes the bizarre QP reencoding from the data you get reading your XML, and don't reapply it saving (except in a backward compatibility mode for non-upgrading users). The whole idea of UTF-8 is to be able to represent about any glyph imaginable without requiring reencoding, and UTF8-encoded XML deals pretty well with it besides the requirement to escape ' under certain circumstances.___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cocoa-dev%40softraph.com This email sent to cocoa-...@softraph.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Reading in UTF-8 to Data
I was all over the internet last night including Stack Overflow, Coco Dev, this mailing list. I can' t believe I missed this. Thanks! On Jul 16, 2010, at 2:58 PM, Kirk Kerekes wrote: In the first page of Google hits for nsstring quoted-printable http://stackoverflow.com/questions/491678/can-you-translate-php-function-quoted-printable-decode-to-an-nsstring-based-ob This is at least a starting point. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Reading in UTF-8 to Data
I'm having trouble getting text to appear properly in an NSTextView which is binded to an NSData attribute in core data. I've been all over the internet but I'm still stumped. The original text looks like this: There is a period at the end of this sentence. You should have also just seen a line return and here • is a option-8 bullet character. This text is saved in an XML file that starts with ?xml version=1.0 encoding=UTF-8? My goal is to write code to read this XML file and create an NSData object for the text. This is what I've written: NSString *s = [childNode stringValue]; //assume this child is the correct text NSData *noteData = [s dataUsingEncoding:NSUnicodeStringEncoding allowLossyConversion:YES]; // I also tried NSUTF8StringEncoding This results in the following appearing in my NSTextView There is a period at the end of this sentence=2E=0DYou should have also jus= t seen a line return and here =E2=80=A2 is a option-8 bullet character= =2E I'd like to do the correct encoding but there's something wrong and I don't want to resort to the find and replace method. (i.e. find =2E and replace with .) The actual text in the XML file is: NoteThere is a period at the end of this sentence=2E=0DYou should have also jus= t seen a line return and here =E2=80=A2 is a option-8 bullet character= =2E/Note (why there's an = between the s and t in the word just is confusing). Can anyone help? Thank 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 arch...@mail-archive.com
Re: Reading in UTF-8 to Data
Yes, quoted-printable. That's precisely it but in doing my research in the documentation and on the internet it doesn't seem like it's a simple process especially for someone like me with 9 months of Cocoa development experience. Does anyone have a utility or sample code? On Jul 15, 2010, at 6:19 PM, Nick Zitzmann wrote: On Jul 15, 2010, at 4:03 PM, Brad Stone wrote: I'm having trouble getting text to appear properly in an NSTextView which is binded to an NSData attribute in core data. I've been all over the internet but I'm still stumped. The original text looks like this: There is a period at the end of this sentence. You should have also just seen a line return and here • is a option-8 bullet character. This text is saved in an XML file that starts with ?xml version=1.0 encoding=UTF-8? My goal is to write code to read this XML file and create an NSData object for the text. This is what I've written: NSString *s = [childNode stringValue]; //assume this child is the correct text NSData *noteData = [s dataUsingEncoding:NSUnicodeStringEncoding allowLossyConversion:YES]; // I also tried NSUTF8StringEncoding This results in the following appearing in my NSTextView There is a period at the end of this sentence=2E=0DYou should have also jus= t seen a line return and here =E2=80=A2 is a option-8 bullet character= =2E I'd like to do the correct encoding but there's something wrong and I don't want to resort to the find and replace method. (i.e. find =2E and replace with .) The actual text in the XML file is: NoteThere is a period at the end of this sentence=2E=0DYou should have also jus= t seen a line return and here =E2=80=A2 is a option-8 bullet character= =2E/Note (why there's an = between the s and t in the word just is confusing). Can anyone help? Looks like you need to translate the text in the XML file using a MIME quoted-printable decoder, and then run the results through a UTF-8 decoder. Quoted-printable sequences start with a = and the next two characters indicate the hex value of the character. For example, 0xe280a2 is the bullet character (U+2022) in UTF-8. See RFC 2045 for more details. Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to revert to an unedited document window?
That was the suggestion I needed. Thank you. Here's what I did in the windowControler: [doc removeWindowController:self]; [[self managedObjectContext] rollback]; [doc close]; and then I use my normal routine to reload the document. On Jun 29, 2010, at 12:23 PM, Jerry Krinock wrote: On 2010 Jun 29, at 05:23, Brad Stone wrote: Using [NSPersistentDocument revertToContentsOfURL:(NSURL *)inAbsoluteURLofType:(NSString *)inTypeName error:(NSError**)outError] works except the window closes and opens. If that didn't happen I'd be fine. Reverting a Core Data document is tricky. Apple's recommended methods are given here: http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/NSPersistentDocumentTutorial/04_Department/department.html#//apple_ref/doc/uid/TP40002832-SW6 But you should also read these: http://www.cocoabuilder.com/archive/cocoa/161579-bug-in-nspersistentdocument-tutorial.html#161579 http://www.cocoabuilder.com/archive/cocoa/174292-bug-nspersistentdocument-core-data-tutorial.html#174292 http://www.cocoabuilder.com/archive/cocoa/177523-bug-nspersistentdocument-core-data-tutorial.html#177523 Since Revert is not a major advertised feature of the app I was working on, after trying unsuccessfully to make it work for an hour or so, I gave up and implemented Revert to simply close and re-open the document. It's a little slow and ugly, but it works, and eliminates a branch of regression possibilities. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cocoa-dev%40softraph.com This email sent to cocoa-...@softraph.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
How to revert to an unedited document window?
I have a subclassed windowController that has an associated core data managedObject called note, a managedObjectContext and a NSPersistendDocument. Sometimes I need to reset everything back to the last time the doc was saved and make the doc clean (isDocumentEdited == NO) so that when I close it the documentController doesn't ask me if I want to save changes. managedObjectContext rollback does restore everything to the last save but I can't get the document to be unEdited. Using [window setDocumentEdited:NO] or [windowController setDocumentEdited:NO} (which I know I shouldn't call) both don't work. Do I have to reset the persistendDocument somehow? Using [NSPersistentDocument revertToContentsOfURL:(NSURL *)inAbsoluteURLofType:(NSString *)inTypeName error:(NSError**)outError] works except the window closes and opens. If that didn't happen I'd be fine. Thanks___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
applicationShouldTerminate gets called on with no edited documents
I have (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender in my app delegate and it gets called when the user quits if **no** documents have been edited (I'm using Core Data). If one of my documents **is** edited it doesn't get called. It goes right to - (void)closeAllDocumentsWithDelegate:(id)delegate didCloseAllSelector:(SEL)didCloseAllSelector contextInfo:(void *)contextInfo in my subclassed NSDocumentController. I set up a breakpoint in my subclassed NSDocumentController at closeAllDocuments and I see this when I quit (assuming there's an edited document): 0 -[SRDocumentController closeAllDocumentsWithDelegate:didCloseAllSelector:contextInfo:] 1 -[NSDocumentController(NSInternal)_shouldTerminateWithDelegate:shouldTerminateSelector:] 2 -[NSApplication _shouldTerminate] 3 -[NSApplication terminate:] I want to have an opportunity to send an NSApplicationTerminateReply before closeAllDocumentsWithDelegate is called. If applicationShouldTerminate would get called like it does with no edited documents I would be in great shape. Can anyone help me?___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Newbie Question re: callback signatures
How do I create the callback method? I don't understand what the signature is
telling me. I have
canCloseDocumentWithDelegate:shouldCloseSelector:contextInfo: in my NSDocument
and I want to set up the callback method. When I create a method as below it
never fires. I must just not be reading it correctly.
- (void)document:(NSDocument *)doc shouldClose:(BOOL)shouldClose
contextInfo:(void *)contextInfo {
NSLog(@hey, it finally worked!);
}
What exactly should the method be in my NSDocument?
Thanks in advance.
canCloseDocumentWithDelegate:shouldCloseSelector:contextInfo:
If the receiver is not dirty, this method immediately calls the
shouldCloseSelector callback on the specified delegate with YES.
-
(void)canCloseDocumentWithDelegate:(id)delegateshouldCloseSelector:(SEL)shouldCloseSelector
contextInfo:(void *)contextInfo
Parameters
delegate
The delegate to which the selector message is sent.
shouldCloseSelector
The selector of the message sent to the delegate.
contextInfo
Object passed with the callback to provide any additional context information.
Discussion
If the receiver is dirty, an alert is presented giving the user a chance to
save, not save, or cancel. If the user chooses to save, this method saves the
document. If the save completes successfully, this method calls the callback
with YES. If the save is canceled or otherwise unsuccessful, this method calls
the callback with NO. This method may be called
byshouldCloseWindowController:delegate:shouldCloseSelector:contextInfo:. It is
also called by the NSDocumentController method closeAllDocuments. You should
call it before you call closeif you are closing the document and want to give
the user a chance to save any edits. Pass thecontextInfo object with the
callback.
The shouldCloseSelector callback method should have the following signature:
- (void)document:(NSDocument *)doc shouldClose:(BOOL)shouldClose
contextInfo:(void *)contextInfo
Availability
Available in Mac OS X v10.0 and later.
Declared In
NSDocument.h
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Loading PersistentDocuments into the same window
I want to open NSPersistentDocuments and load them into the same window one at
a time. I'm almost there but missing some steps. Hopefully someone can help
me.
I have a few saved documents on the hard drive. On launch my app opens to an
untitled NSPersistentDocument and creates a separate NSWindowController. When
I press the button to load file 1 off the hard drive the data appears in the
fields but two things are wrong that I can see:
1) changing the data doesn't make the document dirty
2) choosing save updates the persistentstore (I know this because when I open
the file again I see the changes) but I get an error: +entityForName: could not
locate an NSManagedObjectModel for entity name 'Book'
Here's my code which is in the WindowController that was launched initially
with the untitled document. This code isn't perfect. For example, I know I
should processPendingChanges and save the current doc before I load the new
one. This is test code to try to get over this hurdle.
- (IBAction)newBookTwo:(id)sender {
NSDocumentController *dc = [NSDocumentController
sharedDocumentController];
NSURL *url = [NSURL fileURLWithPath:[@~/Desktop/File 2.binary
stringByExpandingTildeInPath]];
NSError *error;
MainWindowDocument *thisDoc = [dc openDocumentWithContentsOfURL:url
display:NO error:error];
[self setDocument:thisDoc];
[self setManagedObjectContext:[thisDoc managedObjectContext]];
}
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Re: Loading PersistentDocuments into the same window
Think about the Finder. You click on a file, get a preview. If you like it
you can open it. That's what I'm driving at. You click on a row in a
tableView, you get a preview (the opening is in code, I'm storing an index of
file references in a different NSDocument) and if you like it you open up in a
new window. The difference here is you can edit the file in preview.
I'll try your code. Thanks for the reply.
On Apr 30, 2010, at 1:17 PM, Quincey Morris wrote:
On Apr 30, 2010, at 08:56, Brad Stone wrote:
I want to open NSPersistentDocuments and load them into the same window one
at a time.
Excuse the soapbox, but you do realize that from the outside looking in, this
*seems* like a terrible idea? If your documents really are documents in the
user interface sense, then what's the reason for inventing a new
document-handling metaphor for users? If they're not really documents, then
why try to shoehorn them into the NSDocument metaphor?
Keep in mind that Core Data persistent stores don't really fit the standard
document metaphor very well, so that NSPersistentDocument is already a little
bit broken. (Ask the people who've had trouble with Save As, for example.)
Piling on another layer of metaphorical abuse seems like a prescription for
great pain. But anyway ...
- (IBAction)newBookTwo:(id)sender {
NSDocumentController *dc = [NSDocumentController
sharedDocumentController];
NSURL *url = [NSURL fileURLWithPath:[@~/Desktop/File 2.binary
stringByExpandingTildeInPath]];
NSError *error;
MainWindowDocument *thisDoc = [dc openDocumentWithContentsOfURL:url
display:NO error:error];
[self setDocument:thisDoc];
[self setManagedObjectContext:[thisDoc managedObjectContext]];
}
Here's what I'd try (apologies if you've tried this already; all typed in
mail):
1. Create a global variable:
MyWindowController* recycledWindowController = nil;
2. In the window controller:
- (IBAction)newBookTwo:(id)sender {
NSDocumentController *dc = [NSDocumentController
sharedDocumentController];
NSURL *url = [NSURL fileURLWithPath:[@~/Desktop/File 2.binary
stringByExpandingTildeInPath]];
recycledWindowController = self;
[self.document removeWindowController: self];
NSError *error;
MainWindowDocument *thisDoc = [dc openDocumentWithContentsOfURL:url
display:NO error:error];
}
3. In the document:
- (void) makeWindowControllers {
if (! recycledWindowController) {
recycledWindowController = ... // create a new window controller
recycledWindowController.shouldCloseDocument = YES;
}
[self addWindowController: recycledWindowController];
[recycledWindowController noteChangedDocument]; // or send a
notification, or have the window controller KVO-observe its own 'document'
property
recycledWindowController = nil;
}
Something like that.
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Re: Loading PersistentDocuments into the same window
Yes, I haven't gotten to the second part yet. So, let me see if I understand what you're doing in your first example. You're putting the initial window controller in a global that both the doc and the windowController can get to. When it's time to open a new doc you're saving the current windowController to the global variable, removing it from the dc list and calling [dc openDocument...]. This will reuse the saved global windowController (the code in the document subclass). [dc openDocumentWith...] is opening the new doc and it'll be associated with the same windowController in the makeWindowControllers method. I see how you're doing that. What I don't understand is the documentation for openDocumentWIthCOntentsOfURL doesn't mention anything about setting up the managedObjectContext or creating an undoManager and liking the MOC to a persistentStore. This could just be me because I've been doing cocoa for 6 months (programming in other languages for many years) but are you assuming all the stuff happens because openDocument... is called? Regarding the second part, yes I'm planning on setting up another windowController and when I show the second window moving the managedObjectContext over to it. Both windows will have the same moc. I had a similar problem with that: no undo and the saving didn't work but I put that on hold until I got the first part done. I figure if it works in the preview window making it work in it's own window should be straightforward. On Apr 30, 2010, at 3:36 PM, Quincey Morris wrote: On Apr 30, 2010, at 10:55, Brad Stone wrote: Think about the Finder. You click on a file, get a preview. If you like it you can open it. That's what I'm driving at. You click on a row in a tableView, you get a preview (the opening is in code, I'm storing an index of file references in a different NSDocument) and if you like it you open up in a new window. The difference here is you can edit the file in preview. After letting this percolate for a while ... It's a bit more involved than I thought, because it looks like you actually need 2 window controller classes -- one for the preview, and another for the independently opened documents (assuming those windows don't themselves function as preview windows). In any case, I think I'd keep the initial preview window as a singleton, and always let the document create its own window controller (of a different class, I'd assume), when a file is chosen for preview, but just not show the document's own window yet. Then, I'd attach the singleton controller to the document with addWindowController: (after removing it from another document, if it was previously attached elsewhere). It could could then configure itself to display the document contents. (That would eliminate the global variable and the makeWindowControllers override that I suggested earlier.) That would make it easy to open an independent document window from the preview -- just show its already existing window. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/cocoa-dev%40softraph.com This email sent to cocoa-...@softraph.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Loading PersistentDocuments into the same window
Quincey - you were right. The undo wasn't working because the windowController wasn't in the document's windowController array. I used your concept of reusing the same windowController and it works. Thanks! On Apr 30, 2010, at 4:12 PM, Quincey Morris wrote: On Apr 30, 2010, at 12:44, Brad Stone wrote: [dc openDocumentWith...] is opening the new doc and it'll be associated with the same windowController in the makeWindowControllers method. I see how you're doing that. What I don't understand is the documentation for openDocumentWIthCOntentsOfURL doesn't mention anything about setting up the managedObjectContext or creating an undoManager and liking the MOC to a persistentStore. This could just be me because I've been doing cocoa for 6 months (programming in other languages for many years) but are you assuming all the stuff happens because openDocument... is called? It happens in the NSPersistentDocument initialization -- the NSDocumentController isn't involved beyond triggering the creation of the document. Regarding the second part, yes I'm planning on setting up another windowController and when I show the second window moving the managedObjectContext over to it. Both windows will have the same moc. I had a similar problem with that: no undo and the saving didn't work but I put that on hold until I got the first part done. I figure if it works in the preview window making it work in it's own window should be straightforward. I believe that undo etc weren't working because your window controller wasn't in the document's windowControllers array. Note that if you're planning on allowing editing in both places, you have a whole other set of issues to do with, to keep the two views of the document contents in sync. I'm back to thinking this might be a bit misguided from the UI point of view. Presumably you have something in the preview window that lets you select which document to preview. Why not just leave that much in the preview window and just let that window open and close real document windows to do the preview? What's the payoff from integrating both into a single window (and is it big enough to justify the development 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/cocoa-dev%40softraph.com This email sent to cocoa-...@softraph.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
XCode 3.2.2 Hangs after Clean All but Previous Version Doesn't
The same code builds fine after a clean all in 3.2.1 and 3.2. In the new version, 3.2.2, it hangs during the build. Here's the sequence: 1) I open the code 2) clean all 3) I build and it hangs (still says Clean succeeded in the bottom right of the window) 4) I force quit and reopen code 5) clean all 6) I build and it goes fine (it says precompiling, building, running) 7) I quit my app 8) clean all 9) back to 3 Has anyone else experienced this? It only happens with this code. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: XCode 3.2.2 Hangs after Clean All but Previous Version Doesn't
Nope, just this project. I loaded it on a different Mac, same problem and it's OK in 3.2. The thing is I can't even debug it. On Apr 26, 2010, at 9:14 AM, Rui Pacheco wrote: Does it happen with all projects or always the same? If its always the same project try deleting the project folder and checking it out again. On 26 April 2010 14:06, Brad Stone cocoa-...@softraph.com wrote: The same code builds fine after a clean all in 3.2.1 and 3.2. In the new version, 3.2.2, it hangs during the build. Here's the sequence: 1) I open the code 2) clean all 3) I build and it hangs (still says Clean succeeded in the bottom right of the window) 4) I force quit and reopen code 5) clean all 6) I build and it goes fine (it says precompiling, building, running) 7) I quit my app 8) clean all 9) back to 3 Has anyone else experienced this? It only happens with this code. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/rui.pacheco%40gmail.com This email sent to rui.pach...@gmail.com -- Best regards, Rui Pacheco ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How do I get a file reference w/o relying on the path?
SOLVED
This works just as it should. For reasons that I thought were valid at the
time (I no longer think so) I had this code in writeSafelyToURL: right after
the writeTofile: command. What was strange was the url was valid because I was
storing the bookmark after the file was successfully written to the hard drive
but I guess there wasn't enough information in the file yet to make a valid
reference (bookmark). I moved it farther down the line with the exact same
code and everything worked fine.
Thank you for all your help.
On Apr 18, 2010, at 10:43 PM, Noah Desch wrote:
Are you sure the data is being stored into your note dictionary correctly?
Here is my bookmark resolution code, it looks almost exactly like yours. I'm
running on 10.6.3 and building for 10.6 with GC off.
- (NSURL *)resolveBookmarkData:(NSData *)bookmark
withOptions:(NSURLBookmarkResolutionOptions)options needsUpdate:(BOOL *)stale
{
NSURL *url;
NSError *error;
NSMutableDictionary *userInfo;
error = Nil;
*stale = NO;
url = [NSURL URLByResolvingBookmarkData:bookmark options:options
relativeToURL:Nil bookmarkDataIsStale:stale error:error];
if ( url ) {
return url;
}
if ( error [[error domain] isEqualTo:NSCocoaErrorDomain] [error
code] == NSFileNoSuchFileError ) {
// error presentation and resolution code follows...
-Noah
On Apr 18, 2010, at 10:08 PM, Brad Stone wrote:
The error comes back file does not exist and the NSLog statement shows
url = (null) after I change the name of the file in the Finder. If I
change the file name back to what it was when the bookmark was saved the
file opens fine. I changed my creation option to 0. No difference.
NSData *bookmarkData = [note valueForKey:@bookmarkData];
NSError *error = nil;
BOOL isStale;
NSURL *url = [NSURL URLByResolvingBookmarkData:bookmarkData
options:0 relativeToURL:nil bookmarkDataIsStale:isStale error:error];
NSLog(@url = %@, [url description]);
if (error != nil) {
[NSApp presentError:error];
}
On Apr 18, 2010, at 11:45 AM, Noah Desch wrote:
On Apr 18, 2010, at 10:43 AM, Brad Stone wrote:
I'm storing the bookmark data in an array displayed in a table:
NSData *bookmarkData = [inAbsoluteURL
bookmarkDataWithOptions:NSURLBookmarkCreationSuitableForBookmarkFile
includingResourceValuesForKeys:nil
relativeToURL:nil
error:error];
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Re: How do I get a file reference w/o relying on the path?
I'm storing the bookmark data in an array displayed in a table: NSData *bookmarkData = [inAbsoluteURL bookmarkDataWithOptions:NSURLBookmarkCreationSuitableForBookmarkFile includingResourceValuesForKeys:nil relativeToURL:nil error:error]; When the user double clicks on the row in the table I want to open the file. I use this: NSError *error; BOOL isStale; NSURL *url = [NSURL URLByResolvingBookmarkData:bookmarkData options:NSURLBookmarkResolutionWithoutUI relativeToURL:nil bookmarkDataIsStale:isStale error:error]; When the file's name or directory changes on my hard drive the resolved url == nil. I'd like it to resolve to the actual file even if my app is closed and opened again (I'm saving the bookmarkData to repopulate the table the next time the user opens my app). I thought that's what bookmarks did in 10.6 - I could be wrong. An ugly workaround would be when the user double-clicks for me to create an actual alias file in a temp folder from the bookmark data and store that in my array, recreate it in a temp folder and launch that. I'm sure that's wrong - there has got to be a better way. On Apr 3, 2010, at 6:55 PM, Ken Thomases wrote: On Apr 3, 2010, at 5:20 PM, Brad Stone wrote: I want to store a reference to a file in an ivar that will allow the user to change the file's name and/or the directory (i.e. the path) and still allow me to access it. I don't want to create a file (like an ailas). I need to store the file reference in a variable so I can open the file no matter where the user moves it or renames it. FSRefs have the property you desire. As of Snow Leopard, though, the new recommended technique is to use a file reference NSURL. Check the NSURL documentation and also: http://developer.apple.com/mac/library/documentation/cocoa/conceptual/LowLevelFileMgmt/Articles/FileManagementNSURL.html Note that an alias _record_ is different from an alias _file_. An alias record is data in memory and is suitable for this purpose, but perhaps overkill. As of Snow Leopard, alias records are deprecated in favor of bookmark data, but, again, it's probably overkill. (Both alias records and bookmark data are more suitable if the reference is to be persisted for use by a later process. Also, both can apply more robust searching heuristics to find an appropriate file even if it isn't the original. For example, if the original is deleted and replaced with a new file of the same name.) 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 arch...@mail-archive.com
Re: How do I get a file reference w/o relying on the path?
The error comes back file does not exist and the NSLog statement shows url =
(null) after I change the name of the file in the Finder. If I change the
file name back to what it was when the bookmark was saved the file opens fine.
I changed my creation option to 0. No difference.
NSData *bookmarkData = [note valueForKey:@bookmarkData];
NSError *error = nil;
BOOL isStale;
NSURL *url = [NSURL URLByResolvingBookmarkData:bookmarkData
options:0 relativeToURL:nil bookmarkDataIsStale:isStale error:error];
NSLog(@url = %@, [url description]);
if (error != nil) {
[NSApp presentError:error];
}
On Apr 18, 2010, at 11:45 AM, Noah Desch wrote:
On Apr 18, 2010, at 10:43 AM, Brad Stone wrote:
I'm storing the bookmark data in an array displayed in a table:
NSData *bookmarkData = [inAbsoluteURL
bookmarkDataWithOptions:NSURLBookmarkCreationSuitableForBookmarkFile
includingResourceValuesForKeys:nil
relativeToURL:nil
error:error];
I am doing the same thing and it is still able to resolve the bookmarks when
the file moves or its name changes. The only real difference I can see
between our two approaches is that I am passing 0 for both the creation
options and the resolution options.
What are the properties of the error object are you getting when the bookmark
resolution fails?
-Noah
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Re: NSInvocation error when closing a dirty document
The view that has the combo box, for example, has a Object Controller (called
NoteObjectController) binded to my file's owner (MyDocument : NSDocument) with
the Model Key Path to the MOC and the object controller is an entity of my
model I created in Core Data. The combo box is binded to the attribute
category (which is in the entity Note). All of it is just like you said and
pretty plain vanilla. Remember, all this binding works fine with a normal
save. Just not when I close a dirty document. When I do, the first time I get
the invocation error. I don't know **why** I just know it's because the cursor
is still in the text fields (any one of them). When I close again it works
because the editing ended when the error came up. I'm using
saveDocumentWithDelegate to check to see if the user is closing a document
that needs to be saved so I can end editing before the save begins to head off
the error.
I agree with you 100%. I'm learning in Cocoa that if you're doing too much
coding you're doing something wrong but I don't know how else to fix it. I'm
an experience programmer but only 6-months with Cocoa.
On Apr 12, 2010, at 1:04 AM, Jerry Krinock wrote:
Brad, you're overriding a method for a strange purpose, and it looks like
you're examining an argument to see if it is a certain Apple private
selector, and all this is done to achieve something which is quite ordinary,
namely binding your data model to a combo box and a text view.
When you find yourself doing something extraordinary to achieve a result
which is ordinary, it means that you took a wrong turn somewhere. Anyone
else with a similar problem should instead try the object controller I
suggested.
On 2010 Apr 11, at 14:42, Brad Stone wrote:
- (void)saveDocumentWithDelegate:(id)delegate
didSaveSelector:(SEL)didSaveSelector contextInfo:(void *)contextInfo {
if (didSaveSelector == @selector(_document:shouldClose:contextInfo:)) {
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On Apr 12, 2010, at 1:04 AM, Jerry Krinock wrote:
Brad, you're overriding a method for a strange purpose, and it looks like
you're examining an argument to see if it is a certain Apple private
selector, and all this is done to achieve something which is quite ordinary,
namely binding your data model to a combo box and a text view.
When you find yourself doing something extraordinary to achieve a result
which is ordinary, it means that you took a wrong turn somewhere. Anyone
else with a similar problem should instead try the object controller I
suggested.
On 2010 Apr 11, at 14:42, Brad Stone wrote:
- (void)saveDocumentWithDelegate:(id)delegate
didSaveSelector:(SEL)didSaveSelector contextInfo:(void *)contextInfo {
if (didSaveSelector == @selector(_document:shouldClose:contextInfo:)) {
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Re: NSInvocation error when closing a dirty document
For future reference, I needed to end editing in the textView or the combo
boxes to prevent the NSInvocation error. I did this by making the window the
firstResponder in my NSDocument class with the saveDocumentWithDelegate method
only when the window is being closed. This is not necessary when the document
is just being saved.
Here's the code
- (void)saveDocumentWithDelegate:(id)delegate
didSaveSelector:(SEL)didSaveSelector contextInfo:(void *)contextInfo {
// Try to end editing
if (didSaveSelector == @selector(_document:shouldClose:contextInfo:)) {
NSWindow *w = [headerBox window];
BOOL ended = [w makeFirstResponder:w];
if (!ended) {
NSLog(@Could not end editing in
MyDocument:saveDocumentWithDelegate:);
return;
}
}
[super saveDocumentWithDelegate:(id)delegate
didSaveSelector:didSaveSelector
contextInfo:(void
*)contextInfo];
}
On Apr 10, 2010, at 9:12 PM, Jerry Krinock wrote:
On 2010 Apr 10, at 12:43, Brad Stone wrote:
I have a strange bug that I've been tracking for a while and I'd like the
benefit of your experience. It happens with I close a window that needs to
be saved.
When closing a dirty Core Data NSPersistentDocument I get the following
error between the Do you want to save sheet and the save panel:
[58341:a0f] +[NSInvocation invocationWithMethodSignature:]: method signature
argument cannot be nil
If I make the document dirty by typing text into any of the combo boxes or
the text view I get the above error after I press the Save button on the
Do you want to save… sheet
Well, as usual, there are two routes to attack this. I was going to say to
try either, but in this case, since you know it has something to do with the
combo boxes or text view, I'd try Route 2 first.
Route 1 - The Scientist. Use debugging information to try and narrow down
where the problem might be. To do this, set breakpoints on the following
symbols. (Some are irrelevant for this case, but you should have these handy
in any project):
handleFailureInMethod:object:file:lineNumber:description:
objc_exception_throw
malloc_printf
-[NSException raise]
handleFailureInFunction:file:lineNumber:description:
raise:format:arguments:
Then Debug - Breakpoints On. Reproduce your problem, and the debugger will
stop where the exception occurs. Look at the call stack and think real hard.
To get more food for thought, in your Xcode documentation browser, search
for and open the Document-Based Applications Overview. Click on the
chapter, Message Flow in the Document Architecture, then scroll down to and
feast your eyes upon Figure 6.
Route 2 - The Engineer. Figure out what you're doing that's different than
what everyone else is doing, and change your design toward the more
conventional until the problem goes away. You didn't say much about how
you're binding these combo boxes and text view. Look at Apple's
DepartmentAndEmployees sample code, in the MyDocument.nib, and note how the
DepartmentController, an NSObjectController, is interposed between the user
interface and the data model. One reason to do that is so that your data
model will be updated when the window is closed, and then you won't need to
do this:
have the bindings set, in IB, to Continuously Updates Value.
which is definitely *not* conventional. (Again, look at the bindings in
DepartmentAndEmployees MyDocument.nib.) Other reasons may be related to your
current problem.
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NSInvocation error when closing a dirty document
I have a strange bug that I've been tracking for a while and I'd like the benefit of your experience. It happens with I close a window that needs to be saved. When closing a dirty Core Data NSPersistentDocument I get the following error between the Do you want to save sheet and the save panel: [58341:a0f] +[NSInvocation invocationWithMethodSignature:]: method signature argument cannot be nil Yes, I know something is nil but I have not ventured into any of the methods that handle this behavior (I start with SaveDocument) and I don't know exactly what is nil. This happens whether its a document that's never been saved or one that has. I've tracked it down to an exact sequence of events. The document's window has two combo boxes, a radio button matrix and a text view. If I make the document dirty by changing the selected radio button and then close the window everything works as expected (Do you want to save sheet comes up, I press Save and the save panel comes up. If I make the document dirty by typing text into any of the combo boxes or the text view I get the above error after I press the Save button on the Do you want to save… sheet (the sheet closes like normal but nothing happens after the error) After the sheet disappears. I press the close box again and everything works fine: the save panel comes up and the document saves normally. This made me think that maybe the edits weren't getting updated but those three objects have the bindings set, in IB, to Continuously Updates Value. Thanks for the help.___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
How do I get a file reference w/o relying on the path?
I want to store a reference to a file in an ivar that will allow the user to change the file's name and/or the directory (i.e. the path) and still allow me to access it. I don't want to create a file (like an ailas). I need to store the file reference in a variable so I can open the file no matter where the user moves it or renames it. For those of you who know REALbasic I can do this easily with FolderItem.GetSaveInfo. How can I do this in Cocoa? Thanks___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How do I get a file reference w/o relying on the path?
Very interesting. According to the documentation if I want to store the reference and want it to persist after a reboot I need to do a bookmark. You should not store or archive file reference URLs. A file’s ID may be different for different boots of the operating system. If you need to store a URL, see “Working with Bookmarks and Aliases.” THANK YOU so much for pointing me in the correct direction. On Apr 3, 2010, at 6:55 PM, Ken Thomases wrote: On Apr 3, 2010, at 5:20 PM, Brad Stone wrote: I want to store a reference to a file in an ivar that will allow the user to change the file's name and/or the directory (i.e. the path) and still allow me to access it. I don't want to create a file (like an ailas). I need to store the file reference in a variable so I can open the file no matter where the user moves it or renames it. FSRefs have the property you desire. As of Snow Leopard, though, the new recommended technique is to use a file reference NSURL. Check the NSURL documentation and also: http://developer.apple.com/mac/library/documentation/cocoa/conceptual/LowLevelFileMgmt/Articles/FileManagementNSURL.html Note that an alias _record_ is different from an alias _file_. An alias record is data in memory and is suitable for this purpose, but perhaps overkill. As of Snow Leopard, alias records are deprecated in favor of bookmark data, but, again, it's probably overkill. (Both alias records and bookmark data are more suitable if the reference is to be persisted for use by a later process. Also, both can apply more robust searching heuristics to find an appropriate file even if it isn't the original. For example, if the original is deleted and replaced with a new file of the same name.) 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 arch...@mail-archive.com
Re: NSBrowser Question
Thanks for your response. That's exactly what I was doing but your response made me take another look (I was working on this all day yesterday). It seems I was reloading the column before the wrapper was completely saved (even though I thought I was)! When I put the reload code in a button and clicked it after the save it works fine. Ugh - if I did this yesterday I would have saved hours of frustration! On Feb 14, 2010, at 9:19 PM, Keary Suska wrote: On Feb 14, 2010, at 3:53 PM, Brad Stone wrote: I have an app that saves it's documents in a fileWrapper. The document's window has a NSBrowser where users can attach files. Before the document is saved for the first time the NSBrower's root is a temporary attachments folder (because the filewrapper doesn't exist). After it's saved that attachment folder is moved into the wrapper. When I save the file for the first time, even though I set the root item to the attachment folder in the wrapper, the Browser can't find the attachments (the items are still looking in the temp folder). If I close and reopen the document it works fine. What do I have to do to tell the NSBrowser that the root item has been changed and that the items are now in the attachment folder in the wrapper? Did you call reloadColumn: after the change? 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/cocoa-dev%40softraph.com This email sent to cocoa-...@softraph.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSBrowser Question
I have an app that saves it's documents in a fileWrapper. The document's window has a NSBrowser where users can attach files. Before the document is saved for the first time the NSBrower's root is a temporary attachments folder (because the filewrapper doesn't exist). After it's saved that attachment folder is moved into the wrapper. When I save the file for the first time, even though I set the root item to the attachment folder in the wrapper, the Browser can't find the attachments (the items are still looking in the temp folder). If I close and reopen the document it works fine. What do I have to do to tell the NSBrowser that the root item has been changed and that the items are now in the attachment folder in the wrapper? Thanks___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTextField sendActionOn:
Here's why I need this - I've been trying to solve this problem for 2 weeks! This issue all revolves around a NSCollectionView. Each CollectionViewItem has a view containing a NSTextField, NSDatePicker, NSButton (checkbox), and an NSLevelIndicator. The selection index of my CollectionView is binded to the selection index of an NSArrayController. The problem I having is if the user performs a mouseDown in the TextField I need to update the selectionIndex of the array controller so the CollectionView will show the appropriate view as selected. Without this, the wrong view is selected. Here's a quick example: 1) click the add button twice to create two items in my collectionView. Items with index 0 and 1. Since item 1 was the last one created, it is selected (I have it showing a grey box). 2) click your mouse into the text field of the item at index 0 and start typing The user would expect item 0 to be the selected item but it's not. The array controller still thinks item 1 is selected. It needs to be told otherwise. If the user pressed the remove button item 1 would be removed. This is why I want to fire an action when the user inserts into the text field (just like I do when the user clicks the checkbox). I want to change the selectedObject in the array controller. The problem I'm having with subclassing the NSTextField is I can't figure out how to get the CollectionViewItem from the subclassed TextField. If I could I could then execute my method to update the ArrayController. I tried creating an IBOutlet to the CollectionView, the ArrayController and the CollectionViewItem but they all come back as nil. I think I read here that IBOutlets don't work in this instance. I also tried setting up my own Notification but the CollectionViewItem never receives it (other objects do). This is tricky, any help you may have would be appreciated. Brad On Jan 17, 2010, at 6:12 AM, Graham Cox wrote: On 17/01/2010, at 3:56 PM, Brad Stone wrote: I was able to capture the mouseDown event in the field but only in a subclass which is causing me problems elsewhere. Indeed, a mouse click is not the only reason a field might become focused - the user could tab into it as well. Overriding -becomeFirstResponder should do it. Taking a step back though, WHY do you need to get notified here? What are you trying to do? There might be a better way. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTextField sendActionOn:
I finally had a breakthrough! I'm not sure it's the best solution but it
works and hopefully will be instructive for others trying to do the same thing
connection views. There's a lot of steps (which is why I think it may not be
the best) so I'll try to be as clear as possible.
1) when a user clicks their mouse in my subclasses NSTextField I send this
action:
BOOL theResult = [NSApp sendAction:@selector(notifyViewOfMouseDown) to:nil
from:nil];
2) my subclassed view has a method that executes when this action is sent:
- (void)notifyViewOfMouseDown {
NSDictionary *d = [NSDictionary dictionaryWithObject:self
forKey:@view];
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
[nc postNotificationName:SRVIsSelectedChanged object:self userInfo:d];
}
This allows me to package up the view and send it along in a notification.
Packaging the view is **key** here because this is the view that needs to be
selected. My subclassed NSCollectionView is registered as an observer of this
notification. When it receives this notification I execute this code to update
the array controller with a new selectedObject
- (void)handleViewSelections:(NSNotification *)note {
View *v = [[note userInfo] objectForKey:@view];
int limit = [[self content] count];
for (int i = 0; i limit; i++) {
NSCollectionViewItem *item = [self itemAtIndex:i];
View *thisView = [item view];
if ([thisView isEqual:v]) {
[item setSelected:YES]; //my subclassed
NSCollectionViewItem knows how to set itself as selected and update the array
controller
}
}
}
Boy, I'm glad I figured that out! I'm sure there are a lot more experienced
programmers than me out there so if anyone can think of a way I can do this
without so many steps I'd be glad to learn from them.
Jonathan, thanks for your suggestion. My subclassed NSTextField didn't respond
to superview. I wish it did, it would have saved me a step. To adapt your
solution I'd need to register each newly created view in my NSCollectionView
link that back to the NSCollectionViewItem that has the code to set itself as
selected and to update the array controller. I had to delete your reply from
this message to make it thru the listserve size
limit.___
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NSTextField sendActionOn:
I have an NSTextField and an NSDatePicker on a view. As soon as the user clicks into either on (and before they type anything) I want to send an action. I thought I'd use sendActionOn: but I can't get it to work. The best I can do for the NSTextField is bind an action and in, IB, in the TextFieldAttributes set Action to Sent on End Editing which sends the action after the first character is type. I want the action sent as soon as the field gains focus. Thanks___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTextField sendActionOn:
I tried that (textDidBeginEditing) but it fires only after the user hits a key to begin typing, not when they first enter the field (i.e. the action that makes the focus ring show up). I want to be notified as soon as the user clicks in the field to get the cursor in there. I was able to capture the mouseDown event in the field but only in a subclass which is causing me problems elsewhere. On Jan 16, 2010, at 3:08 PM, Matthew Lindfield Seager wrote: On Sunday, January 17, 2010, Brad Stone cocoa-...@softraph.com wrote: The best I can do for the NSTextField is bind an action and in, IB, in the TextFieldAttributes set Action to Sent on End Editing which sends the action after the first character is type. I want the action sent as soon as the field gains focus. Googling nstextfield begin editing notification without the quotes takes one straight to the fine manual. See textDidBeginEditing in particular. Hope that is what you are after. Regards, Matt ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
How do I know when a new object is added to an NSArray or NSCollectionView?
I'd like a viewController to be notified whenever an arrayController adds a new object. Here's why: I have an NSTextField in a view that gets added in an NSCollectionView. There's also an array controller and when I fire the add: selector the new view shows up in the collection. The view that gets added has an NSTextField in it and I want the cursor to be in there and ready so the user can just start typing. So I guess this is a two-part question: 1) how do I get notified if a new object is added? 2) how do I make the NSTextField in the view that just was added ready and waiting to be typed in? Thanks!___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
