This is ChangeManager.h in view mode; [Download] [Up]
/*
* Please refer to external reference pages for complete
* documentation on using the ChangeManager class.
*/
@interface ChangeManager : Responder
{
List *_changeList; /* done, undone and redone changes */
Change *_lastChange; /* the last done or redone change */
Change *_nextChange; /* the most recently undone change */
Change *_changeInProgress; /* the current change in progress */
int _numberOfDoneChanges; /* number of done or redone changes
recorded in the changeList */
int _numberOfUndoneChanges; /* undone changes in the changeList */
int _numberOfDoneChangesAtLastClean;/* number at time clean last message */
BOOL _someChangesForgotten; /* YES whenever we don't remember
enough to return to a clean state */
int _changesDisabled; /* YES between outermost calls to
disableChanges: and enableChanges:*/
}
/* Methods called directly by your code */
- init; /* start with [super init] if overriding */
- free; /* end with [super free] if overriding */
- (BOOL)canUndo; /* DO NOT override */
- (BOOL)canRedo; /* DO NOT override */
- (BOOL)isDirty; /* DO NOT override */
- dirty:sender; /* start with [super dirty:sender] if overriding */
- clean:sender; /* start with [super clean:sender] if overriding */
- reset:sender; /* start with [super reset:sender] if overriding */
- disableChanges:sender; /* DO NOT override */
- enableChanges:sender; /* DO NOT override */
- undoOrRedoChange:sender; /* DO NOT override */
- undoChange:sender; /* DO NOT override */
- redoChange:sender; /* DO NOT override */
- (BOOL)validateCommand:sender;
/* end with [super validateCommand:] if overriding */
/* Methods called by Change */
/* DO NOT call these methods directly */
- changeInProgress:change; /* DO NOT override */
- changeComplete:change; /* DO NOT override */
/* Methods called by ChangeManager */
/* DO NOT call these methods directly */
- changeWasDone; /* override at will */
- changeWasUndone; /* override at will */
- changeWasRedone; /* override at will */
@end
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