Re: MainMenu.nib won't load
Hi Peter. Thank you for your reply. Is there any logical reason which could explain that - even if our code would call NSDocumentController directly - this works on every user's Mac but not this single user's one? We will of course check and track everything. Thank you again for your advice. - - - - - Am 11.04.2010 06:38, Peter Ammon wrote: Hi Ulf, The first instance of NSDocumentController (or a subclass) becomes the shared instance. It sounds like some code is instantiating an instance of NSDocumentController before your class, so the shared instance is of the base class instead of your subclass. I don't know what would be causing that, but you might look in your code for direct messages to NSDocumentController, instead of your subclass. Good luck tracking it down, -Peter On Apr 10, 2010, at 2:43 AM, Ulf Dunkel wrote: I am kind of stuck with a support question which I cannot explain myself. If someone in this list can give me a hint, I would be more than happy. If this list is the wrong place to ask for this issue, please excuse (and point me to the right place, if possible). One of our customers cannot use our pure Cocoa app Barcody properly. He complains that several menu items cannot be used. (And of course he is the first and only one who complains about this.) Console.app tells us this (on his Mac OS X 10.6.3 machine): - snip - 4/7/10 8:44:12 AM Barcody[83923] Could not connect the action showPreferences: to target of class NSDocumentController 4/7/10 8:44:12 AM Barcody[83923] Could not connect the action showCreditsWindow: to target of class NSDocumentController 4/7/10 8:44:12 AM Barcody[83923] Could not connect the action gotoToReg: to target of class NSDocumentController 4/7/10 8:44:12 AM Barcody[83923] Could not connect the action visitURL: to target of class NSDocumentController 4/7/10 8:44:12 AM Barcody[83923] Could not connect the action stopModalDialog: to target of class NSDocumentController - snap - So it looks like the MainMenu.nib won't load properly on his machine. Although he is the only one who has this issue, I would be able to understand WHY this can happen. Could we have done something wrong using the MainMenu.nib? Are there any known issues with Snowy and NSDocumentController? If you want to check the Barcody Resources, just grab the multi-lingual app from here: http://www.dsd.net/prod/mac/barcody.php?lan=enpmode=download (And yes, it happens whatever language and country he sets in his System Prefs.) Clueless, Ulf Dunkel ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: ObjC question
On Apr 10, 2010, at 9:11 PM, Seth Willits wrote: On Apr 10, 2010, at 5:11 PM, Tony Romano wrote: When you create the file system event, you can pass a void * via the structure which is accessible in the event callback. In this pointer, I want to pass my Volume object so I know which volume the event was for. I could have easily passed the volume object pointer in when I create the FileSystemEvent object but I always like to stretch my thinking. I'm not sure how this relates to your previous question. I think you may have misspoken/left something out above. I'm guessing you meant that when you setup the FSEvent callback, you're passing in the FileSystemEvent object instead of the Volume object? In the callback, in order to use the Volume, the FileSystemEvent would need a reference to the Volume. Otherwise you'd need to pass the volume to the callback and get the FileSystemEvent object from the Volume. Additionally, you could also create a struct which separately contains references to both the FileSystemEvent and the Volume if for some reason you don't have and don't want a reference to the Volume in the FileSystemEvent. Assuming Seth described your intentions correctly and your goal is to encapsulate the FSEvent functions within an object, perhaps you want to consider a delegate pattern. 1. Add an property to FileSystemEvent named delegate. 2. When Volume creates a FileSystemEvent, it sets itself as the delegate. 3. In the FSEvent callback function, get the delegate from the FileSystemEvent and send it the appropriate message(s). That way, your usage of FSEvent functions is contained within the FileSystemEvent class, and you have a design pattern that follows Cocoa conventions. Conceptually, it also illustrates that FileSystemEvent may have other uses outside of the Volume class. This is essentially a rephrasing of the initWithContainer: sample code that Kevin suggested. Aaron ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
Static Libary which links against Foundation
Hi all! I have written a dynamic library which uses Foundation and defines an public interface in C. To test this I added a C-Shell-Tool target which includes the public header and uses both C APIs. Everything works fine. Since the future user of this library will have to write a wrapper in a different programming language, it makes sense to convert this library to a static library. I did that and stumbled upon the problem that my test app (C-Shell-Toll) now has to link against Foundation. I would like to avoid that since the library should encapsulate everything which is Objective-C. Is that even possible? Regards, Chris ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: QCRenderer.... how do you do that?: solved
All, I had tried to create this attached to an OpenGLContext, but apparently didn't do it right. I found the answer at: http://developer.casgrain.com/?p=4 Problem solved. Eric On Apr 10, 2010, at 6:56 PM, Eric Smith wrote: I'm trying to use a Quartz Composer filter in a cocoa app. I've published inputs and outputs: one image input, one image output. I can successfully set the input image, but when I try to get the output image, I get 0x0 no error messages, just a null pointer. Here's my code: QCComposition* myComp = [QCComposition compositionWithFile:@/Users/esmith/Desktop/Simple.qtz]; QCRenderer* myRenderer = [[QCRenderer alloc] initWithComposition:myComp colorSpace:CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB)]; NSBitmapImageRep* theRep = [[[NSBitmapImageRep alloc] initWithCIImage:[ciImageRep CIImage]] autorelease]; BOOL isSet = [myRenderer setValue:theRep forInputKey:@InputImage]; NSBitmapImageRep* theOutput = [myRenderer valueForOutputKey:@OutputImage ofType:@Image]; Am I missing a step where I tell the renderer to render? (PS, I've tried renderattime:0, but it doesn't help). Ideas? Thanks, Eric ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/eric_h_smith%40mac.com This email sent to eric_h_sm...@mac.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
Cocoa scripting support - background helper app
My Cocoa app consists of GUI component and an agent foundation component in a conventional bundle. The agent can execute without the GUI to provide a network accessible service. I would like AppleScripts run by the foundation tool to be able to target a scriptable helper app. I would prefer NOT to target my app as this would expose the GUI. I don't want to load additional AppleScript objects (via AS load script) or write a scripting addition. Thus I need to target another app, let's call it the Helper app. The Image Events application in /system/library/coreservices comes to mind here. My questions are: 1. Presumably I have to target a fully fledged application bundle and cannot somehow route my AE requests to the foundation tool itself. 2. Can I embed the helper app in the main app bundle and engineer some way for AppleScript to be able to target it? I seem to remember reading something about app bundles enclosed with other apps but cannot recall it. I don't really want to have two external app bundles. 3.When configuring a Cocoa app to behave like Image events.app is it sufficient just to declare LSBackgroundOnly = 1 in the info.plist? Regards Jonathan Mitchell Developer http://www.mugginsoft.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: Cocoa scripting support - background helper app
On Apr 11, 2010, at 10:14 AM, jonat...@mugginsoft.com wrote: My questions are: 1. Presumably I have to target a fully fledged application bundle and cannot somehow route my AE requests to the foundation tool itself. 2. Can I embed the helper app in the main app bundle and engineer some way for AppleScript to be able to target it? I seem to remember reading something about app bundles enclosed with other apps but cannot recall it. I don't really want to have two external app bundles. 3.When configuring a Cocoa app to behave like Image events.app is it sufficient just to declare LSBackgroundOnly = 1 in the info.plist? My PreFab UI Actions product consists of a standard application with a full-fledged GUI, plus a scriptable faceless background application (FBA). The FBA acts somewhat like a traditional scripting addition (OSAX), but it is actually a standard Cocoa application package with LSUIElement = 1. Because the FBA serves the same overall purpose as a scripting addition, my main application installs it in the user or local ScriptingAdditions folder. The main application gives the user an option to launch the FBA every time the computer starts up, and of course the FBA is automatically launched any time an AppleScript 'tell' command is directed to it. I use LSUIElement = 1 to keep the FBA out of the Dock, etc. I do NOT use LSBackgroundOnly = 1, because I want the FBA to be able to present an alert from time to time, and when I do that I bring it to the front for easy user input. This is a fairly common pattern. -- Bill Cheeseman b...@cheeseman.name ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Cocoa scripting support - background helper app
On 11 Apr 2010, at 15:52, Bill Cheeseman wrote: On Apr 11, 2010, at 10:14 AM, jonat...@mugginsoft.com wrote: My questions are: 1. Presumably I have to target a fully fledged application bundle and cannot somehow route my AE requests to the foundation tool itself. 2. Can I embed the helper app in the main app bundle and engineer some way for AppleScript to be able to target it? I seem to remember reading something about app bundles enclosed with other apps but cannot recall it. I don't really want to have two external app bundles. 3.When configuring a Cocoa app to behave like Image events.app is it sufficient just to declare LSBackgroundOnly = 1 in the info.plist? My PreFab UI Actions product consists of a standard application with a full-fledged GUI, plus a scriptable faceless background application (FBA). The FBA acts somewhat like a traditional scripting addition (OSAX), but it is actually a standard Cocoa application package with LSUIElement = 1. Because the FBA serves the same overall purpose as a scripting addition, my main application installs it in the user or local ScriptingAdditions folder. The main application gives the user an option to launch the FBA every time the computer starts up, and of course the FBA is automatically launched any time an AppleScript 'tell' command is directed to it. I use LSUIElement = 1 to keep the FBA out of the Dock, etc. I do NOT use LSBackgroundOnly = 1, because I want the FBA to be able to present an alert from time to time, and when I do that I bring it to the front for easy user input. This is a fairly common pattern. Thanks Bill. This explains the presence of Keychain Scripting.app in /system/library/scripting additions. I presume that your FBA is included in your main app bundle as a resource and exported to ~/library/scripting additions as necessary. Regards Jonathan Mitchell Developer http://www.mugginsoft.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
nstableview in drawer resetting custom cursor
I am adding objects to the content array of a NSArrayController by clicking in an NSView. When doing this, the mouse cursor is set to a cross-hair cursor. The contents of the NSArrayController are displayed in a NSTableView in an NSDrawer (the columns of the NSTableView are bound to the contents of the NSArrayController). So every time I click, a new row is added to the NSTableView in the NSDrawer. This works fine. The problem is that when an object is added to the content array (a new row is added to the NSTableView), the mouse cursor is reset to the default arrow cursor. Even though, the cursor when the mouse is inside the NSView is set to a cross-hair cursor. Actually, when moving the mouse outside the NSView and back to the NSView the mouse cursor returns to the cross-hair cursor, which is how is supposed to be. So there is something in the NSTableView or in the enveloping NSScrollView that is resetting the mouse. I have tried avoiding this behavior by disabling the cursor rects (disableCursorRects) before adding the object and enabling them (enableCursorRects) afterwards. But that does not work. The closest I got to a solution was by invalidating the cursor rectangles in the drawer, something like this: [[theDrawer parentWindow] invalidateCursorRectsForView:[theDrawer contentView]]; But that, gives an erratic behavior. Sometimes the mouse is rest to the custom arrow, sometimes is not. So, how do I stop the AppKit resetting the mouse cursor to the default? Regards Nestor Cardozo ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Problem with reading an NSPipe-NSFileHandle to end
Hi,
I'm trying to execute a task in the background and parsing the output from the
task along the way. However I get the NSTaskDidTerminateNotification before all
the output from the task has been delivered by
NSFileHandleReadCompletionNotification - and I am not able to squeeze much more
(but in some cases a little, but never all the way to the end) out of the
filehandle after the task exits.
Code is what we all want to look at, so here are the interesting bits.
code start
App.h:
NSTask *myTask;
NSFileHandle *myFileHandle;
App.m:
- (id) init {
[super init];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(threadPipeReader:)
name:NSFileHandleReadCompletionNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(threadTaskStopped:)
name:NSTaskDidTerminateNotification
object:nil];
return self;
}
-(void)startMyTask {
NSPipe *pipe = [[NSPipe alloc] init];
myFileHandle = [pipe fileHandleForReading];
[myFileHandle readInBackgroundAndNotify];
myTask = [[NSTask alloc] init];
[myTask setLaunchPath:launchPath];
[myTask setCurrentDirectoryPath:homeDirectory];
[myTask setStandardOutput: pipe];
[myTask setStandardError: pipe];
[myTask setArguments:arguments];
[myTask launch];
}
-(void)threadPipeReader:(NSNotification *)notification {
NSData *data;
data = [[notification userInfo]
objectForKey:NSFileHandleNotificationDataItem];
[ ... do something with data ... ]
[[notification object] readInBackgroundAndNotify];
}
-(void)threadTaskStopped:(NSNotification *)notification {
NSData *data = [myFileHandle availableData];
while ([data length] 0) {
NSLog(@got some more: %@, [[NSString alloc]
initWithData:data encoding:NSUTF8StringEncoding]);
NSLog(@output size: %d, [data length]);
data = [myFileHandle availableData];
}
}
code end
I never got the full output in threadPipeReader, but then I tried to fetch the
data in threadTaskStopped - but that only gives some output. Not all the way to
the end either.
I then tried to specify how much data I wanted from myFileHandle in
threadTaskStopped, by doing:
NSData *data = [myFilehandle readDataOfLength:262144];
And then got the output:
got some more: about 262144 characters of data
output size: 262144
But then the while-loop exited because myFileHandle was zero length the next
time it got polled. When I don't specify a size, but just asks for
availableData, I get sizes of exactly 16K (16384) multiple times. But never an
odd size - and I can definetely see that the output gets chopped off (sometimes
mid-line) - so I am never able to get the last output from the task.
Can someone help me with this?
Best regards
Rasmus Skaarup
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Table with cells as dragging destination?
What I need is a table where some columns show images as data. It should be possible to drag images and image files onto these cells. I implemented the table as an NSTableView with NSImageCells, I know about the standard drag and drop for table rows. However, I am clueless about how to use cells as dragging destination. Am I supposed to subclass NSTableView, and implement drag and drop, including all gory details? Are there any examples available? Is there another view more suitable for what I'm trying to achieve? Thanks, Izak --- Grinnikend door het leven... ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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:Changing the drag image on the fly
If I understand your requirements correctly, this blog posting should be of help: http://joshua.nozzi.name/2009/10/jlndrageffectmanager/ It discusses changing the drag image based on the underlying view, and provides sample code for the effect. Iain Delaney iain.dela...@gmail.com www.lucernesys.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: Using a SOAP Web Service from iPhone
On Apr 9, 2010, at 8:52 AM, Dru Satori wrote: [soapRequestXml appendFormat:@\t\t\t%@%@/%@\n, paramName, paramValue, paramName]; Minor note: I hope none of your parameter values contain any XML metacharacters like quotes or angle-brackets, or you’re going to at minimum generate invalid XML, and at worst (if the values might come from an untrusted source) open yourself up to XML injection attacks. —Jens___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Drag and drop (NSCollectionView)?
Hi Experts, Am trying to implement drag and drop for a NSCollectionView (similar to icon view in Finder), although on starting the drag I get following callbacks: – collectionView:writeItemsAtIndexes:toPasteboard: and – collectionView:draggingImageForItemsAtIndexes:withEvent:offset: *but none of the following callbacks on dropping:* – collectionView:validateDrop:proposedIndex:dropOperation: and – collectionView:acceptDrop:index:dropOperation: Any idea on what am missing here? TIA, Alex ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Cant read second table from same sqlite database iphone
On Apr 10, 2010, at 6:02 PM, charisse napeÿf1as wrote: I get nothing You get result codes from each sqlite API call at least. What are they? What happens if you run the second piece of code without having run the first one? Experiment. At a higher level, consider using an existing, already-working Cocoa SQLite wrapper (FMDB, QuickLite) instead of building your own. —Jens___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Static Libary which links against Foundation
On Apr 11, 2010, at 5:07 AM, Christian Ziegler wrote: it makes sense to convert this library to a static library. I did that and stumbled upon the problem that my test app (C-Shell-Toll) now has to link against Foundation. I would like to avoid that since the library should encapsulate everything which is Objective-C. Is that even possible? Not really. Any binary that contains calls into a framework has to link against that framework. If you include a static library in your app, it becomes part of the app binary, by definition. There shouldn’t be any problem with having the app link against Foundation. —Jens___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Cocoa scripting support - background helper app
On Apr 11, 2010, at 11:20 AM, jonat...@mugginsoft.com wrote: This explains the presence of Keychain Scripting.app in /system/library/scripting additions. Correct. Faceless Background Applications (FBAs) are often preferred over scripting additions (OSAXen) for a number of reasons, including avoiding polluting the AppleScript namespace. I presume that your FBA is included in your main app bundle as a resource and exported to ~/library/scripting additions as necessary Right again. It is zipped in the main app bundle and expanded using the ditto tool during installation. -- Bill Cheeseman b...@cheeseman.name ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Cant read second table from same sqlite database iphone
I'm afraid I can't be much more help if you don't have the return codes from
each of the SQLite statements. I do note in the second method, you're asking
for column values out of order, which is pretty unusual.
- Ben
On Apr 10, 2010, at 6:42 PM, charisse napeÿf1as wrote:
I was able to successfully retrieve data on the first table. But I can't seem
to retrieve from the second table. I know it has data inside it because I
used an SQLite Browser to view the data. I also tried performing queries
there and it worked fine. Only when I used the queries in the code that it
doesn't work.
Below is the code writing the database in the Users/Documents folder for
Iphone
- (void) createDatabaseIfNeeded
{
NSError * error;
//gets access to the file system
NSFileManager * fileManager = [NSFileManager defaultManager];
// gets the complete users document directory path
NSArray * paths =
NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,
YES);
// gets the first path in the array
NSString * documentsDirectory = [paths objectAtIndex:0];
// create the complete path for the database file
NSString * databasePath = [documentsDirectory
stringByAppendingString:@/Database.sql];
DebugLog(databasePath = %s\n,[databasePath UTF8String]);
// check if file exists or not
BOOL success = [fileManager fileExistsAtPath:databasePath];
if (success) return;
// the database does not exist so copy it in the users documents directory
NSString * dbPath = [[[NSBundle mainBundle] resourcePath]
stringByAppendingPathComponent:@/Database.sql];
DebugLog(dbpath is %s\n,[dbPath UTF8String]);
//copy the database file to ther users docuement directory
success = [fileManager copyItemAtPath:dbPath toPath:databasePath
error:error];
if (!success)
NSAssert(0,@Failed to copy Database!\n);
}
From: Ben Trumbull trumb...@apple.com
To: cnape...@yahoo.com
Cc: Cocoa dev cocoa-dev@lists.apple.com
Sent: Sunday, April 11, 2010 9:27:46
Subject: re: Cant read second table from same sqlite database iphone
Hello All,
I am having trouble reading the second table from my database because it
returns nothing even if there is data inside it.
How do you know it has data inside it ? A common mistake is to try to write
to databases in the read only part of an application's sandbox on the iphone.
Where in the sandbox is the database ?
- (NSMutableArray*) getProvinces
{
NSMutableArray * data = [[NSMutableArray alloc] init];
const char * sql = SELECT * FROM Provinces;
sqlite3_stmt * statement;
//prepare the select statement
int returnValue = sqlite3_prepare_v2(mDatabase, sql, -1, statement,
NULL);
DebugLog(return value = %d\n,returnValue);
if (returnValue == SQLITE_OK)
{
//sqlite3_bind_int(statement, 1, regionID);
//loop all the rows returned by the query
while (sqlite3_step(statement) == SQLITE_ROW)
{
You don't check the return codes here properly. sqlite3_prepare_v2() can
return SQLITE_BUSY, or SQLITE_SCHEMA, or SQLITE_MISUSE. More importantly,
you don't check if sqlite3_step() returns SQLITE_DONE which would indicate
that you have 0 rows in this table.
- Ben
New Email names for you!
Get the Email name you've always wanted on the new @ymail and @rocketmail.
Hurry before someone else does!
- Ben
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Re: nstableview in drawer resetting custom cursor
On Apr 8, 2010, at 00:27, Nestor Cardozo wrote: This works fine. The problem is that when an object is added to the content array (a new row is added to the NSTableView), the mouse cursor is reset to the default arrow cursor. Even though, the cursor when the mouse is inside the NSView is set to a cross-hair cursor. Actually, when moving the mouse outside the NSView and back to the NSView the mouse cursor returns to the cross-hair cursor, which is how is supposed to be. So there is something in the NSTableView or in the enveloping NSScrollView that is resetting the mouse. Take a look at -[NSScrollView setDocumentCursor:]. The scroll view has a nasty habit of resetting the cursor to this one when the relationship between the clip view and the content changes (as when you add rows). ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Changing the drag image on the fly
On Apr 8, 2010, at 8:14 PM, Iain Delaney wrote: If I understand your requirements correctly, this blog posting should be of help: http://joshua.nozzi.name/2009/10/jlndrageffectmanager/ It discusses changing the drag image based on the underlying view, and provides sample code for the effect. Awesome link. Thanks! -- Seth Willits ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Problem with reading an NSPipe-NSFileHandle to end
On Apr 8, 2010, at 9:57 AM, Rasmus Skaarup wrote:
I'm trying to execute a task in the background and parsing the output from
the task along the way. However I get the NSTaskDidTerminateNotification
before all the output from the task has been delivered by
NSFileHandleReadCompletionNotification
This is completely ordinary. There are two independent inter-process
communication mechanisms at work, and there's no guarantee that all of the
output data will arrive at your process and be delivered in a notification
before the task termination notification is delivered.
- and I am not able to squeeze much more (but in some cases a little, but
never all the way to the end) out of the filehandle after the task exits.
From what you say below, I'm not sure that's accurate.
- (id) init {
[super init];
You should be assigning the result from [super init] to self. You should also
be checking if it's nil.
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(threadPipeReader:)
name:NSFileHandleReadCompletionNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(threadTaskStopped:)
name:NSTaskDidTerminateNotification
object:nil];
The above lines register to for those notifications on _all_ tasks and file
handles in the whole process. This is probably not what you want. You should
register for those notifications after you've created the pipe (and its file
handle) and the task, and you should register on those objects specifically.
return self;
}
-(void)startMyTask {
NSPipe *pipe = [[NSPipe alloc] init];
myFileHandle = [pipe fileHandleForReading];
[myFileHandle readInBackgroundAndNotify];
myTask = [[NSTask alloc] init];
[myTask setLaunchPath:launchPath];
[myTask setCurrentDirectoryPath:homeDirectory];
[myTask setStandardOutput: pipe];
[myTask setStandardError: pipe];
[myTask setArguments:arguments];
[myTask launch];
Are you using garbage collection? If not, then the above code leaks the pipe.
}
-(void)threadPipeReader:(NSNotification *)notification {
[... snipped ...]
}
That looks reasonable, to the extent that you showed.
-(void)threadTaskStopped:(NSNotification *)notification {
NSData *data = [myFileHandle availableData];
while ([data length] 0) {
NSLog(@got some more: %@, [[NSString alloc]
initWithData:data encoding:NSUTF8StringEncoding]);
NSLog(@output size: %d, [data length]);
data = [myFileHandle availableData];
}
}
code end
I never got the full output in threadPipeReader, but then I tried to fetch
the data in threadTaskStopped - but that only gives some output. Not all the
way to the end either.
What you need to do is just mark some internal state so you know the task has
exited in threadTaskStopped:. Then, return to the run loop so that you can
continue to receive the notifications from the background reads. Eventually,
you'll receive the end-of-file marker (a zero-length data). After you've
received both the end-of-file and the task termination notification, then you
can proceed to make final use of the data and clean up the task (and your
registrations with the notification center).
The issue you're encountering is probably because there's both a background
read in progress and your attempt to synchronously read in the foreground. The
background read has probably obtained the missing data that you're never
seeing from the foreground read. You will never see it if you don't allow the
run loop to fire -- for example, if you terminate the thread after getting the
task termination notification. Even if you did see it, you'd get it out of
order with respect to the synchronous foreground read you're doing. There's no
telling which read operation would get any particular chunk of data.
Abandon the foreground reading and the assumption that all data will have
arrived by the time you get the task termination notification. Use only
background reading and keep running the run loop until you get both end-of-file
and task-terminated indicators.
If you still aren't getting all of the output you expect, then your task is
probably exiting early, perhaps crashing.
Regards,
Ken
Re: Automator Actions and CFBundleExecutable key
There are no other warnings tossed out during either compilation Any thoughts? Compare the build transcripts for debug vs release for clues as to why debug is not producing an executable. -- Scott Ribe scott_r...@killerbytes.com http://www.killerbytes.com/ (303) 722-0567 voice ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Drag and drop (NSCollectionView)?
On Apr 9, 2010, at 2:06 PM, Alex Fererro wrote: *but none of the following callbacks on dropping:* – collectionView:validateDrop:proposedIndex:dropOperation: and – collectionView:acceptDrop:index:dropOperation: Any idea on what am missing here? Did you remember to register the view's drag types? 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: Cant read second table from same sqlite database iphone
On 10 Apr 2010, at 18:02, charisse napeÿf1as wrote: //get the name and the score int iDen = sqlite3_column_int(statement, 0); NSString* name = [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement, 0)]; Surely column 0 cannot be both an integer and text. Which one is it?___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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: Problem with reading an NSPipe-NSFileHandle to end
On 11/04/2010, at 21.17, Ken Thomases wrote:
On Apr 8, 2010, at 9:57 AM, Rasmus Skaarup wrote:
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(threadPipeReader:)
name:NSFileHandleReadCompletionNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(threadTaskStopped:)
name:NSTaskDidTerminateNotification
object:nil];
The above lines register to for those notifications on _all_ tasks and file
handles in the whole process. This is probably not what you want. You
should register for those notifications after you've created the pipe (and
its file handle) and the task, and you should register on those objects
specifically.
I launch multiple processes, and I do a check to see which one is the one I'm
getting notified for by doing this in threadPipeReader:
if ( [notification object] == myFileHandle )
(and of course I have more NSTasks and NSFileHandles than myTask and
myFileHandle than my example shows).
So unless you strongly discourage this method, it works out pretty well and I
am able to distinguish which process is notifying me. The method you suggests
forces me to create seperate sub-routines for each invokation.
My programs sole purpose is to launch processes and look at their output.
-(void)startMyTask {
NSPipe *pipe = [[NSPipe alloc] init];
myFileHandle = [pipe fileHandleForReading];
[myFileHandle readInBackgroundAndNotify];
myTask = [[NSTask alloc] init];
[myTask setLaunchPath:launchPath];
[myTask setCurrentDirectoryPath:homeDirectory];
[myTask setStandardOutput: pipe];
[myTask setStandardError: pipe];
[myTask setArguments:arguments];
[myTask launch];
Are you using garbage collection? If not, then the above code leaks the pipe.
I'm doing garbage collection.
-(void)threadPipeReader:(NSNotification *)notification {
[... snipped ...]
}
That looks reasonable, to the extent that you showed.
Only issue here is that threadPipeReader: does not get called after
threadTaskStopped: has been called. Even though output is clearly missing.
-(void)threadTaskStopped:(NSNotification *)notification {
NSData *data = [myFileHandle availableData];
while ([data length] 0) {
NSLog(@got some more: %@, [[NSString alloc]
initWithData:data encoding:NSUTF8StringEncoding]);
NSLog(@output size: %d, [data length]);
data = [myFileHandle availableData];
}
}
code end
I never got the full output in threadPipeReader, but then I tried to fetch
the data in threadTaskStopped - but that only gives some output. Not all the
way to the end either.
What you need to do is just mark some internal state so you know the task has
exited in threadTaskStopped:. Then, return to the run loop so that you can
continue to receive the notifications from the background reads. Eventually,
you'll receive the end-of-file marker (a zero-length data). After you've
received both the end-of-file and the task termination notification, then you
can proceed to make final use of the data and clean up the task (and your
registrations with the notification center).
This sounds like the thing I need - however I need a more detailed explanation.
I don't know what return to the run loop means. Can you give a code example?
But threadTaskStopped: does not need to examine data for the process that
exited. In fact I will prefer to have threadPipeReader: continue to get the
data fed, even though the process exited. It's not important that the process
exited.
The issue you're encountering is probably because there's both a background
read in progress and your attempt to synchronously read in the foreground.
If you think of the availableData calls from threadTaskStopped:, I only put
them there because threadPipeReader: didn't get called after threadTaskStopped:
did.
The background read has probably obtained the missing data that you're
never seeing from the foreground read.
Hmmm, I suspect some more code is needed. The part of the program that executes
these NSTasks is a seperate thread:
App.h:
-(id) init {
self = [super init];
// now assigning super init result to self :-)
if (self) {
[[NSNotificationCenter defaultCenter] addObserver:self
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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Re: Table with cells as dragging destination?
On 09/04/2010, at 1:26 AM, Izak van Langevelde wrote: I implemented the table as an NSTableView with NSImageCells, I know about the standard drag and drop for table rows. However, I am clueless about how to use cells as dragging destination. Am I supposed to subclass NSTableView, and implement drag and drop, including all gory details? Are there any examples available? Is there another view more suitable for what I'm trying to achieve? You should be able to do it all with delegate/dataSource methods. You are not dragging data to the table view's cells. You are dragging data to the underlying data model, which the table view displays (the table view only has one cell per column anyway). When you receive the drag, handled by the datasource dragging callbacks, just insert the new image data into your data model and ask the table to redisplay. Simple as. --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: Problem with reading an NSPipe-NSFileHandle to end
On Apr 11, 2010, at 3:18 PM, Rasmus Skaarup wrote:
On 11/04/2010, at 21.17, Ken Thomases wrote:
On Apr 8, 2010, at 9:57 AM, Rasmus Skaarup wrote:
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(threadPipeReader:)
name:NSFileHandleReadCompletionNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(threadTaskStopped:)
name:NSTaskDidTerminateNotification
object:nil];
The above lines register to for those notifications on _all_ tasks and file
handles in the whole process. This is probably not what you want. You
should register for those notifications after you've created the pipe (and
its file handle) and the task, and you should register on those objects
specifically.
I launch multiple processes, and I do a check to see which one is the one I'm
getting notified for by doing this in threadPipeReader:
if ( [notification object] == myFileHandle )
(and of course I have more NSTasks and NSFileHandles than myTask and
myFileHandle than my example shows).
OK, that's fairly reasonable. Given that you're checking the notification
object is one of the ones you're interested in, it's safe.
So unless you strongly discourage this method, it works out pretty well and I
am able to distinguish which process is notifying me. The method you suggests
forces me to create seperate sub-routines for each invokation.
That's actually not true. You can observe specific objects while using the
same selector for all of the observations.
The distinction between this and what you are apparently doing is that the
framework could theoretically be using NSFileHandles or (less likely) NSTask
for its own purposes. If you observe indiscriminately, then your method may
get called for file handles or tasks that you didn't explicitly create. You
then check the notification objects, which filters out the ones you didn't
create. If you observe only the specific objects you create, then your method
is only invoked for them and not for any framework-created objects. Either way
is workable, although I personally prefer to be specific.
What you need to do is just mark some internal state so you know the task
has exited in threadTaskStopped:. Then, return to the run loop so that you
can continue to receive the notifications from the background reads.
Eventually, you'll receive the end-of-file marker (a zero-length data).
After you've received both the end-of-file and the task termination
notification, then you can proceed to make final use of the data and clean
up the task (and your registrations with the notification center).
This sounds like the thing I need - however I need a more detailed
explanation. I don't know what return to the run loop means. Can you give a
code example?
Um, not really. Returning to the run loop means returning from your methods
back to the whatever run loop is running. For example, the main event loop (if
the task launch and file handle readInBackgroundAndNotify are issued on the
main thread).
Your code is launching the task and initiating the background read from the
file handle, and then returning. Then, when something happens, a notification
is posted and your registered observer methods are invoked. In between those
events, what is your program doing? Generally speaking, it's running the run
loop, which actually means it's waiting for external events or data to arrive
(or timers to fire).
If you don't understand this, you may need to read up about run loops:
http://developer.apple.com/mac/library/documentation/cocoa/conceptual/Multithreading/RunLoopManagement/RunLoopManagement.html
-(id) init {
[... snipped ...]
NSThread *bgThread = [[NSThread alloc] initWithTarget:self
selector:@selector(myThread:) object:nil];
[bgThread start];
[... snipped ...]
}
- (void)myThread:(id)param {
[self performSelectorOnMainThread:@selector(startMyTask:)
withObject:nil waitUntilDone:YES];
}
The above makes no sense. You are launching a background thread, but the only
thing the background thread is doing is passing some work to the foreground
thread.
You have added nothing but complexity and cost by involving a thread.
There is no need to do anything with threads to get asynchronous launching and
monitoring of tasks. The APIs involved (at least, the ones you are using) are
inherently asynchronous.
I suspect we're still not seeing the real code. I
Re: Cant read second table from same sqlite database iphone
I forgot to change the index to 1 but anyway I finally got it working. I guess its a copy problem from my createDatabaseIfNeeded function. since I already have a copy of the databse in the Users/Documents in the iphone simulator, after I've added data inside the second table, it wouldn't reflect in the query because my copy of the databse is outdated. I had to delete the existing database inside so my code can generate a new updated copy. My mistake is that I added data in the second table even after I have already used it. From: Andrew Farmer andf...@gmail.com To: charisse napeÿf1as cnape...@yahoo.com Cc: cocoa-dev@lists.apple.com Sent: Monday, April 12, 2010 4:10:21 Subject: Re: Cant read second table from same sqlite database iphone On 10 Apr 2010, at 18:02, charisse napeÿf1as wrote: //get the name and the score int iDen = sqlite3_column_int(statement, 0); NSString* name = [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement, 0)]; Surely column 0 cannot be both an integer and text. Which one is it? Get your preferred Email name! Now you can @ymail.com and @rocketmail.com. http://mail.promotions.yahoo.com/newdomains/aa/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
MPMoviePlayerController playhead position, setting markers to trigger events and notifications
As a user scrubs forward and backward through movie using MPMoviePlayerController, what's the most efficient way to know where the playhead is at? Is there a simple timeStamp one can grab? Is there a way to set markers to trigger events and notifications? Thanks, Kevin Accessorizer: http://www.kevincallahan.org/software/accessorizer.html ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Problem with reading an NSPipe-NSFileHandle to end
You could use MYTask, or at least look at how it’s implemented, instead of writing your own code. NSTask is surprisingly tricky to use if you want to read the task output. http://bitbucket.org/snej/myutilities/src/tip/MYTask.h —Jens___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSInvocation error when closing a dirty document
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: MPMoviePlayerController playhead position, setting markers to trigger events and notifications (MPMediaPlayback Protocol Reference)
On Apr 11, 2010, at 8:18 PM, Kevin Callahan wrote: As a user scrubs forward and backward through movie using MPMoviePlayerController, what's the most efficient way to know where the playhead is at? Is there a simple timeStamp one can grab? Is there a way to set markers to trigger events and notifications? Thanks, Kevin Accessorizer: http://www.kevincallahan.org/software/accessorizer.html okay .. I found what I was looking for after sending the email, of course MPMediaPlayback Protocol Reference The current position of the playhead. (required) @property(nonatomic) NSTimeInterval currentPlaybackTime -K ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)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
