[Openmcl-devel] undo size

[Janusz Podrazik]

Many thanks, for the explanation.

with warmest regards,

Janusz
--
MRAC Publishing
Janusz Podrazik


On Thursday, 9 June 2011 at 12:03, Gary Byers wrote:

> In the CCL IDE, undo is handled by an NSUndoManager associated with an 
> editor document.
> The maximum depth of an NSUndoManager's stack can be accessed via 
> #/levelsOfUndo and
> set via #/setLevelsOfUndo: . The value 0 is the default and indicates that 
> there's
> no fixed limit on the size of the undo stack.
> 
> There are several ways of obtaining the NSDocument object; in the example 
> below,
> I had a listener and editor window open, and the listener was frontmost:
> 
> ? (#/orderedDocuments gui::*NSApp*)
> #<NS-MUTABLE-ARRAY (
>  "<HemlockListenerDocument: 0x51ee70>",
>  "<HemlockEditorDocument: 0x56dcd0>"
> ) (#x551390)>
> ? (#/objectAtIndex: * 1)
> #<HEMLOCK-EDITOR-DOCUMENT <HemlockEditorDocument: 0x56dcd0> (#x56DCD0)>
> 
> When called with an NSDocument, the #/undoManager method will return the 
> NSUndoManager instance used to track changes to that document.
> ? (#/undoManager *)
> #<NS-UNDO-MANAGER <NSUndoManager: 0x56ee80> (#x56EE80)>
> ? (#/levelsOfUndo *)
> 0
> ?
> 
> There might be some behavior that leads you to conclude that the undo stack 
> in question is limited in size. If you describe that behavior and how to 
> reproduce it, someone might be able to explain that behavior and, if it's 
> incorrect, fix it.
> 
> 
> --On June 9, 2011 10:22:23 AM +0200 Janusz Podrazik 
> <info at mracpublishing.com (mailto:info at mracpublishing.com)> wrote:
> 
> > 
> > 
> > command-\z
> > 
> > 
> > in LispWorks:
> > 
> > 
> > 
> > ; Editor Undo Levels
> > (setf (editor:variable-value 'editor::undo-ring-size) 1000)
> > --
> > MRAC Publishing
> > Janusz Podrazik
> > 
> > 
> > On Thursday, 9 June 2011 at 03:18, Gary Byers wrote:
> > 
> > 
> > 
> > What's the undo size ?
> > 
> > On Thu, 9 Jun 2011, Janusz Podrazik wrote:
> > 
> > 
> > 
> > how to increase the undo size
> > 
> > --MRAC Publishing
> > Janusz Podrazik

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