Re: PDFDocument subclass with an undo manager
That did the trick, thank you for the insight. It seems so obvious
after the fact!
Thank you again very much!
- Kevin
On Jun 30, 2008, at 6:23 PM, Graham Cox wrote:
It won't redo because when it performs the undo, it is calling -
initWithData: directly, and I take it from this snippet that
initWithData: isn't recording the undo.
You need to create a wrapper method for initWithData that contains
the undo recording step, then make that method the target of the
undo, something like:
- (void)myInitWithData:(NSData*) newData
{
[[undoManager prepareWithInvocationTarget:self] myInitWithData:
[self oldData]];
[self initWithData:newData];
}
hth,
cheers, Graham
On 1 Jul 2008, at 9:02 am, Kevin Ross wrote:
Hi everyone, I have a question that might seems a little silly. I
have a PDFDocument subclass which can perform page impositions. I
would also like to be able to undo the impositions. In the methods
I have this when I make the change to the PDF:
[[undoManager prepareWithInvocationTarget:self] initWithData:[self
dataRepresentation]];
[self initWithData:(NSData *)newPDFData];
When I call -undo: later, it works, but I can't get it to -redo:
Is what I'm trying to do even possible this way ? Is there a
better way?
Thanks for any pointers and/or suggestions!!
Kevin
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/graham.cox%40bigpond.com
This email sent to [EMAIL PROTECTED]
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to [EMAIL PROTECTED]
Re: PDFDocument subclass with an undo manager
It won't redo because when it performs the undo, it is calling -
initWithData: directly, and I take it from this snippet that
initWithData: isn't recording the undo.
You need to create a wrapper method for initWithData that contains the
undo recording step, then make that method the target of the undo,
something like:
- (void)myInitWithData:(NSData*) newData
{
[[undoManager prepareWithInvocationTarget:self] myInitWithData:[self
oldData]];
[self initWithData:newData];
}
hth,
cheers, Graham
On 1 Jul 2008, at 9:02 am, Kevin Ross wrote:
Hi everyone, I have a question that might seems a little silly. I
have a PDFDocument subclass which can perform page impositions. I
would also like to be able to undo the impositions. In the methods
I have this when I make the change to the PDF:
[[undoManager prepareWithInvocationTarget:self] initWithData:[self
dataRepresentation]];
[self initWithData:(NSData *)newPDFData];
When I call -undo: later, it works, but I can't get it to -redo:
Is what I'm trying to do even possible this way ? Is there a better
way?
Thanks for any pointers and/or suggestions!!
Kevin
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/graham.cox%40bigpond.com
This email sent to [EMAIL PROTECTED]
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to [EMAIL PROTECTED]
PDFDocument subclass with an undo manager
Hi everyone, I have a question that might seems a little silly. I have a PDFDocument subclass which can perform page impositions. I would also like to be able to undo the impositions. In the methods I have this when I make the change to the PDF: [[undoManager prepareWithInvocationTarget:self] initWithData:[self dataRepresentation]]; [self initWithData:(NSData *)newPDFData]; When I call -undo: later, it works, but I can't get it to -redo: Is what I'm trying to do even possible this way ? Is there a better way? Thanks for any pointers and/or suggestions!! Kevin ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
