NSPasteboard issue
NSPasteboard issue
- Subject: NSPasteboard issue
- From: Michael Swan <email@hidden>
- Date: Thu, 26 Mar 2009 19:53:04 -0400
Hello all,
I am working on copy/paste in Core Data and have been following the
NSPersistentDocument Core Data Tutorial tutorial from
http://developer.apple.com/documentation/Cocoa/Conceptual/NSPersistentDocumentTutorial/05_CopyAndPaste/copyAndPaste.html
I am having a problem with the pasteboard in that I can't seem to get
data out of it once I leave the copy: method. All of the data is
correct all through the copy method (I even pull it back off the
pasteboard to check it, and all is fine there) as soon as I move to
the paste: method I get NULL data, looked around on Google for ideas
but none so far. The relevant code is below, any ideas are welcome:
#import "MyDocument.h"
NSString *MSSalesPBoardType = @"MSSalesPBoardType";
@implementation MyDocument
- (void) copy:(id *) sender
{
// removed selection code correct data exists in this NSLog statement
NSLog(@"copyObjectsArray = %@.", [copyObjectsArray description]);
NSPasteboard *generalPasteboard = [NSPasteboard generalPasteboard];
[generalPasteboard declareTypes:[NSArray
arrayWithObjects:MSSalesPBoardType, NSStringPboardType, nil]
owner:self];
NSData *copyData = [NSKeyedArchiver
archivedDataWithRootObject:copyObjectsArray];
NSArray *salesArray = [NSKeyedUnarchiver
unarchiveObjectWithData:copyData];
// Here the data is intact
NSLog(@"salesArray = %@.", [salesArray description]);
NSLog(@"copyData = %@.", [copyData description]);
[generalPasteboard setData:copyData forType:MSSalesPBoardType];
[generalPasteboard setString:[copyStringsArray
componentsJoinedByString:@"\n"] forType:NSStringPboardType];
NSData *data = [generalPasteboard dataForType:MSSalesPBoardType];
// Here the data is still intact and matches the above description of
copyData
NSLog(@"data = %@.", [data description]);
}
- (void) paste:(id *) sender
{
NSPasteboard *generalPasteboard = [NSPasteboard generalPasteboard];
NSData *data = [generalPasteboard dataForType:MSSalesPBoardType];
if (data = nil)
{
return;
}
// Here data = NULL
NSLog(@"data = %@.", [data description]);
NSArray *salesArray = [NSKeyedUnarchiver unarchiveObjectWithData:data];
// ... method continues...
}
Thanks,
Mike Swan
http://www.michaelsswan.com
"Change itself is not painful it is resistance to change that causes
pain."
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden