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Fix memory management for cursors. In particular prevent the current

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cursor from being deallocated when client code releases the last
reference to it.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@35586 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Wolfgang Lux 2012-09-21 20:24:53 +00:00
parent daf0be3455
commit 2f3297119b
2 changed files with 15 additions and 7 deletions
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15
Source/NSCursor.m
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@ -63,10 +63,10 @@ static NSMutableDictionary *cursorDict = nil;
// Initialize class variables
NSCursor_class = self;
gnustep_gui_cursor_stack = [[NSMutableArray alloc] initWithCapacity: 2];
gnustep_gui_cursor_stack = [[NSMutableArray alloc] initWithCapacity: 1];
gnustep_gui_hidden_until_move = NO;
cursorDict = [NSMutableDictionary new];
[[self arrowCursor] push];
[[self arrowCursor] set];
}
}
@ -109,13 +109,14 @@ static NSMutableDictionary *cursorDict = nil;
/*
* The object we pop is the current cursor
*/
if ([gnustep_gui_cursor_stack count] > 1)
if ([gnustep_gui_cursor_stack count] > 0)
{
NSCursor *c = RETAIN([gnustep_gui_cursor_stack lastObject]);
[gnustep_gui_cursor_stack removeLastObject];
gnustep_gui_current_cursor = [gnustep_gui_cursor_stack lastObject];
NSDebugLLog(@"NSCursor", @"Cursor pop");
[gnustep_gui_current_cursor set];
[c set];
RELEASE(c);
}
}
@ -489,7 +490,7 @@ backgroundColorHint:(NSColor *)bg
*/
- (void) push
{
[gnustep_gui_cursor_stack addObject: self];
[gnustep_gui_cursor_stack addObject: gnustep_gui_current_cursor];
[self set];
NSDebugLLog(@"NSCursor", @"Cursor push %p", _cid);
}
@ -498,7 +499,7 @@ backgroundColorHint:(NSColor *)bg
*/
- (void) set
{
gnustep_gui_current_cursor = self;
ASSIGN(gnustep_gui_current_cursor, self);
if (_cid)
{
[GSCurrentServer() setcursor: _cid];