Small bugfix and performance optimisation.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@27735 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,16 @@
+2009-01-30 Richard Frith-Macdonald <rfm@gnu.org>
+
+	* Source/GSThemeTools.m: Add checks to prevent problems in the case
+	where the control being drawn is actually smaller than the tiles used.
+	* Headers/AppKit/NSScreen.h:
+	* Source/NSScreen.m: Cache device description dictionary ... when
+	debugging the problem with theme tools (which caused a loop to
+	repeatedly composite the tile image instead of doing it once), I
+	noticed that almost every time I stopped the app in gdb, it was in
+	the process of creating a device description, strongly suggesting
+	that this is actually quite a time consuming part of drawing
+	images.
+
 2009-01-30 Richard Frith-Macdonald <rfm@gnu.org>
 
 	* Source/NSApplication.m: Try to get behavior to match MacOS-X

Headers/AppKit/NSScreen.h

@@ -47,7 +47,8 @@
   NSWindowDepth        _depth;
   NSRect               _frame;
   int                  _screenNumber;
-  NSWindowDepth       *_supportedWindowDepths;
+  NSWindowDepth		*_supportedWindowDepths;
+  void			*_reserved;
 }
 
 /*
@@ -56,7 +57,7 @@
 + (NSScreen*) mainScreen;
 + (NSScreen*) deepestScreen;
 + (NSArray*) screens;
-+ (void)resetScreens;
++ (void) resetScreens;
 
 /*
  * Reading Screen Information

Source/GSThemeTools.m

@@ -476,6 +476,28 @@
   unsigned		count;
   float			y;
 
+  if (rect.size.width <= 0.0)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] rect width is not positive",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  if (rect.size.height <= 0.0)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] rect height is not positive",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  if (source.size.width <= 0.0)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] source width is not positive",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  if (source.size.height <= 0.0)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] source height is not positive",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  if (image == nil)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] image is nil",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+
+  ctxt = GSCurrentContext();
   DPSgsave (ctxt);
   path = [NSBezierPath bezierPathWithRect: rect];
   [path addClip];
@@ -500,7 +522,7 @@ withRepeatedImage: (NSImage*)image
 	 fromRect: (NSRect)source
 	   center: (BOOL)center
 {
-  NSGraphicsContext	*ctxt = GSCurrentContext ();
+  NSGraphicsContext	*ctxt;
   NSBezierPath		*path;
   NSSize		size;
   unsigned		xrepetitions;
@@ -508,6 +530,28 @@ withRepeatedImage: (NSImage*)image
   unsigned		x;
   unsigned		y;
 
+  if (rect.size.width <= 0.0)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] rect width is not positive",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  if (rect.size.height <= 0.0)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] rect height is not positive",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  if (source.size.width <= 0.0)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] source width is not positive",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  if (source.size.height <= 0.0)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] source height is not positive",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  if (image == nil)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] image is nil",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+
+  ctxt = GSCurrentContext ();
   DPSgsave (ctxt);
   path = [NSBezierPath bezierPathWithRect: rect];
   [path addClip];
@@ -545,9 +589,23 @@ withRepeatedImage: (NSImage*)image
   NSSize		bls = tiles->rects[TileBL].size;
   NSSize		bms = tiles->rects[TileBM].size;
   NSSize		brs = tiles->rects[TileBR].size;
+  NSSize		tsz;
   NSRect		inFill;
   BOOL			flipped = [[ctxt focusView] isFlipped];
 
+  if (rect.size.width <= 0.0)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] rect width is not positive",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  if (rect.size.height <= 0.0)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] rect height is not positive",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  if (tiles == nil)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] tiles is nil",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+
   if (color == nil)
     {
       [[NSColor redColor] set];
@@ -558,6 +616,19 @@ withRepeatedImage: (NSImage*)image
     }
   NSRectFill(rect);
 
+  tsz.width = tiles->rects[TileTL].size.width
+    + tiles->rects[TileTR].size.width;
+  if (tiles->images[TileTM] == nil)
+    {
+      tsz.width += tiles->rects[TileTM].size.width;
+    }
+  tsz.height = tiles->rects[TileTL].size.height
+    + tiles->rects[TileBL].size.height;
+  if (tiles->images[TileCL] == nil)
+    {
+      tsz.height += tiles->rects[TileCL].size.height;
+    }
+
   if (style == GSThemeFillStyleMatrix)
     {
       NSRect	grid;
@@ -569,31 +640,21 @@ withRepeatedImage: (NSImage*)image
       inFill = NSZeroRect;
       if (tiles->images[TileTM] == nil)
         {
-	  grid.size.width = (tiles->rects[TileTL].size.width
-	    + tiles->rects[TileTR].size.width
-	    + space * 3.0);
+	  grid.size.width = tsz.width + space * 3.0;
 	}
       else
         {
-	  grid.size.width = (tiles->rects[TileTL].size.width
-	    + tiles->rects[TileTM].size.width
-	    + tiles->rects[TileTR].size.width
-	    + space * 4.0);
+	  grid.size.width = tsz.width + space * 4.0;
 	}
       scale = floor(rect.size.width / grid.size.width);
 
       if (tiles->images[TileCL] == nil)
         {
-	  grid.size.height = (tiles->rects[TileTL].size.height
-	    + tiles->rects[TileBL].size.height
-	    + space * 3.0);
+	  grid.size.height = tsz.height + space * 3.0;
 	}
       else
         {
-	  grid.size.height = (tiles->rects[TileTL].size.height
-	    + tiles->rects[TileCL].size.height
-	    + tiles->rects[TileBL].size.height
-	    + space * 4.0);
+	  grid.size.height = tsz.height + space * 4.0;
 	}
       if ((rect.size.height / grid.size.height) < scale)
         {
@@ -717,64 +778,71 @@ withRepeatedImage: (NSImage*)image
     }
   else if (flipped)
     {
-      [self fillHorizontalRect:
-	NSMakeRect (rect.origin.x + bls.width,
-	  rect.origin.y + rect.size.height - bms.height,
-	  rect.size.width - bls.width - brs.width,
-	  bms.height)
-	withImage: tiles->images[TileBM]
-	fromRect: tiles->rects[TileBM]
-	flipped: YES];
-      [self fillHorizontalRect:
-	NSMakeRect (rect.origin.x + tls.width,
-	  rect.origin.y,
-	  rect.size.width - tls.width - trs.width,
-	  tms.height)
-	withImage: tiles->images[TileTM]
-	fromRect: tiles->rects[TileTM]
-	flipped: YES];
-      [self fillVerticalRect:
-	NSMakeRect (rect.origin.x,
-	  rect.origin.y + bls.height,
-	  cls.width,
-	  rect.size.height - bls.height - tls.height)
-	withImage: tiles->images[TileCL]
-	fromRect: tiles->rects[TileCL]
-	flipped: NO];
-      [self fillVerticalRect:
-	NSMakeRect (rect.origin.x + rect.size.width - crs.width,
-	  rect.origin.y + brs.height,
-	  crs.width,
-	  rect.size.height - brs.height - trs.height)
-	withImage: tiles->images[TileCR]
-	fromRect: tiles->rects[TileCR]
-	flipped: NO];
+      if (tsz.width <= rect.size.width && tsz.height <= rect.size.height)
+	{
+	  [self fillHorizontalRect:
+	    NSMakeRect (rect.origin.x + bls.width,
+	      rect.origin.y + rect.size.height - bms.height,
+	      rect.size.width - bls.width - brs.width,
+	      bms.height)
+	    withImage: tiles->images[TileBM]
+	    fromRect: tiles->rects[TileBM]
+	    flipped: YES];
+	  [self fillHorizontalRect:
+	    NSMakeRect (rect.origin.x + tls.width,
+	      rect.origin.y,
+	      rect.size.width - tls.width - trs.width,
+	      tms.height)
+	    withImage: tiles->images[TileTM]
+	    fromRect: tiles->rects[TileTM]
+	    flipped: YES];
+	  [self fillVerticalRect:
+	    NSMakeRect (rect.origin.x,
+	      rect.origin.y + bls.height,
+	      cls.width,
+	      rect.size.height - bls.height - tls.height)
+	    withImage: tiles->images[TileCL]
+	    fromRect: tiles->rects[TileCL]
+	    flipped: NO];
+	  [self fillVerticalRect:
+	    NSMakeRect (rect.origin.x + rect.size.width - crs.width,
+	      rect.origin.y + brs.height,
+	      crs.width,
+	      rect.size.height - brs.height - trs.height)
+	    withImage: tiles->images[TileCR]
+	    fromRect: tiles->rects[TileCR]
+	    flipped: NO];
 
-      [tiles->images[TileTL] compositeToPoint:
-	NSMakePoint (rect.origin.x,
-	  rect.origin.y)
-	fromRect: tiles->rects[TileTL]
-	operation: NSCompositeSourceOver];
-      [tiles->images[TileTR] compositeToPoint:
-	NSMakePoint (rect.origin.x + rect.size.width - tls.width,
-	rect.origin.y)
-	fromRect: tiles->rects[TileTR]
-	operation: NSCompositeSourceOver];
-      [tiles->images[TileBL] compositeToPoint:
-	NSMakePoint (rect.origin.x,
-	  rect.origin.y + rect.size.height - tls.height)
-	fromRect: tiles->rects[TileBL]
-	operation: NSCompositeSourceOver];
-      [tiles->images[TileBR] compositeToPoint:
-	NSMakePoint (rect.origin.x + rect.size.width - brs.width,
-	  rect.origin.y + rect.size.height - tls.height)
-	fromRect: tiles->rects[TileBR]
-	operation: NSCompositeSourceOver];
+	  [tiles->images[TileTL] compositeToPoint:
+	    NSMakePoint (rect.origin.x,
+	      rect.origin.y)
+	    fromRect: tiles->rects[TileTL]
+	    operation: NSCompositeSourceOver];
+	  [tiles->images[TileTR] compositeToPoint:
+	    NSMakePoint (rect.origin.x + rect.size.width - tls.width,
+	    rect.origin.y)
+	    fromRect: tiles->rects[TileTR]
+	    operation: NSCompositeSourceOver];
+	  [tiles->images[TileBL] compositeToPoint:
+	    NSMakePoint (rect.origin.x,
+	      rect.origin.y + rect.size.height - tls.height)
+	    fromRect: tiles->rects[TileBL]
+	    operation: NSCompositeSourceOver];
+	  [tiles->images[TileBR] compositeToPoint:
+	    NSMakePoint (rect.origin.x + rect.size.width - brs.width,
+	      rect.origin.y + rect.size.height - tls.height)
+	    fromRect: tiles->rects[TileBR]
+	    operation: NSCompositeSourceOver];
 
-      inFill = NSMakeRect (rect.origin.x + cls.width,
-	rect.origin.y + bms.height,
-	rect.size.width - cls.width - crs.width,
-	rect.size.height - bms.height - tms.height);
+	  inFill = NSMakeRect (rect.origin.x + cls.width,
+	    rect.origin.y + bms.height,
+	    rect.size.width - cls.width - crs.width,
+	    rect.size.height - bms.height - tms.height);
+	}
+      else
+	{
+	  inFill = rect;
+	}
       if (style == GSThemeFillStyleCenter)
 	{
 	  NSRect	r = tiles->rects[TileCM];
@@ -794,6 +862,8 @@ withRepeatedImage: (NSImage*)image
 	    withRepeatedImage: tiles->images[TileCM]
 	    fromRect: tiles->rects[TileCM]
 	    center: NO];
+	  NSLog(@"rect %@ too small fire tiles %@",
+	    NSStringFromSize(rect.size), NSStringFromSize(tsz));
 	}
       else if (style == GSThemeFillStyleScale)
 	{
@@ -822,73 +892,81 @@ withRepeatedImage: (NSImage*)image
     }
   else
     {
-      [self fillHorizontalRect:
-	NSMakeRect(
-	  rect.origin.x + tls.width,
-	  rect.origin.y + rect.size.height - tms.height,
-	  rect.size.width - bls.width - brs.width,
-	  tms.height)
-	withImage: tiles->images[TileTM]
-	fromRect: tiles->rects[TileTM]
-	flipped: NO];
-      [self fillHorizontalRect:
-	NSMakeRect(
-	  rect.origin.x + bls.width,
-	  rect.origin.y,
-	  rect.size.width - bls.width - brs.width,
-	  bms.height)
-	withImage: tiles->images[TileBM]
-	fromRect: tiles->rects[TileBM]
-	flipped: NO];
-      [self fillVerticalRect:
-	NSMakeRect(
-	  rect.origin.x,
-	  rect.origin.y + bls.height,
-	  cls.width,
-	  rect.size.height - tls.height - bls.height)
-	withImage: tiles->images[TileCL]
-	fromRect: tiles->rects[TileCL]
-	flipped: NO];
-      [self fillVerticalRect:
-	NSMakeRect(
-	  rect.origin.x + rect.size.width - crs.width,
-	  rect.origin.y + brs.height,
-	  crs.width,
-	  rect.size.height - trs.height - brs.height)
-	withImage: tiles->images[TileCR]
-	fromRect: tiles->rects[TileCR]
-	flipped: NO];
+      if (tsz.width <= rect.size.width && tsz.height <= rect.size.height)
+	{
+	  [self fillHorizontalRect:
+	    NSMakeRect(
+	      rect.origin.x + tls.width,
+	      rect.origin.y + rect.size.height - tms.height,
+	      rect.size.width - bls.width - brs.width,
+	      tms.height)
+	    withImage: tiles->images[TileTM]
+	    fromRect: tiles->rects[TileTM]
+	    flipped: NO];
+	  [self fillHorizontalRect:
+	    NSMakeRect(
+	      rect.origin.x + bls.width,
+	      rect.origin.y,
+	      rect.size.width - bls.width - brs.width,
+	      bms.height)
+	    withImage: tiles->images[TileBM]
+	    fromRect: tiles->rects[TileBM]
+	    flipped: NO];
+	  [self fillVerticalRect:
+	    NSMakeRect(
+	      rect.origin.x,
+	      rect.origin.y + bls.height,
+	      cls.width,
+	      rect.size.height - tls.height - bls.height)
+	    withImage: tiles->images[TileCL]
+	    fromRect: tiles->rects[TileCL]
+	    flipped: NO];
+	  [self fillVerticalRect:
+	    NSMakeRect(
+	      rect.origin.x + rect.size.width - crs.width,
+	      rect.origin.y + brs.height,
+	      crs.width,
+	      rect.size.height - trs.height - brs.height)
+	    withImage: tiles->images[TileCR]
+	    fromRect: tiles->rects[TileCR]
+	    flipped: NO];
 
-      [tiles->images[TileTL] compositeToPoint:
-	NSMakePoint (
-	  rect.origin.x,
-	  rect.origin.y + rect.size.height - tls.height)
-	fromRect: tiles->rects[TileTL]
-	operation: NSCompositeSourceOver];
-      [tiles->images[TileTR] compositeToPoint:
-	NSMakePoint(
-	  rect.origin.x + rect.size.width - trs.width,
-	  rect.origin.y + rect.size.height - trs.height)
-	fromRect: tiles->rects[TileTR]
-	operation: NSCompositeSourceOver];
-      [tiles->images[TileBL] compositeToPoint:
-	NSMakePoint(
-	  rect.origin.x,
-	  rect.origin.y)
-	fromRect: tiles->rects[TileBL]
-	operation: NSCompositeSourceOver];
-      [tiles->images[TileBR] compositeToPoint:
-	NSMakePoint(
-	  rect.origin.x + rect.size.width - brs.width,
-	  rect.origin.y)
-	fromRect: tiles->rects[TileBR]
-	operation: NSCompositeSourceOver];
-
-      inFill = NSMakeRect (rect.origin.x +cls.width,
-	rect.origin.y + bms.height,
-	rect.size.width - cls.width - crs.width,
-	rect.size.height - bms.height - tms.height);
+	  [tiles->images[TileTL] compositeToPoint:
+	    NSMakePoint (
+	      rect.origin.x,
+	      rect.origin.y + rect.size.height - tls.height)
+	    fromRect: tiles->rects[TileTL]
+	    operation: NSCompositeSourceOver];
+	  [tiles->images[TileTR] compositeToPoint:
+	    NSMakePoint(
+	      rect.origin.x + rect.size.width - trs.width,
+	      rect.origin.y + rect.size.height - trs.height)
+	    fromRect: tiles->rects[TileTR]
+	    operation: NSCompositeSourceOver];
+	  [tiles->images[TileBL] compositeToPoint:
+	    NSMakePoint(
+	      rect.origin.x,
+	      rect.origin.y)
+	    fromRect: tiles->rects[TileBL]
+	    operation: NSCompositeSourceOver];
+	  [tiles->images[TileBR] compositeToPoint:
+	    NSMakePoint(
+	      rect.origin.x + rect.size.width - brs.width,
+	      rect.origin.y)
+	    fromRect: tiles->rects[TileBR]
+	    operation: NSCompositeSourceOver];
 
+	  inFill = NSMakeRect (rect.origin.x +cls.width,
+	    rect.origin.y + bms.height,
+	    rect.size.width - cls.width - crs.width,
+	    rect.size.height - bms.height - tms.height);
+	}
+      else
+	{
+	  inFill = rect;
+	  NSLog(@"rect %@ too small fire tiles %@",
+	    NSStringFromSize(rect.size), NSStringFromSize(tsz));
+	}
       if (style == GSThemeFillStyleCenter)
 	{
 	  NSRect	r = tiles->rects[TileCM];
@@ -941,12 +1019,33 @@ withRepeatedImage: (NSImage*)image
 		 fromRect: (NSRect)source
 		  flipped: (BOOL)flipped
 {
-  NSGraphicsContext	*ctxt = GSCurrentContext();
+  NSGraphicsContext	*ctxt;
   NSBezierPath		*path;
   unsigned		repetitions;
   unsigned		count;
   NSPoint		p;
 
+  if (rect.size.width <= 0.0)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] rect width is not positive",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  if (rect.size.height <= 0.0)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] rect height is not positive",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  if (source.size.width <= 0.0)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] source width is not positive",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  if (source.size.height <= 0.0)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] source height is not positive",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  if (image == nil)
+    [NSException raise: NSInvalidArgumentException
+		format: @"[%@-%@] image is nil",
+      NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
+  ctxt = GSCurrentContext();
   DPSgsave (ctxt);
   path = [NSBezierPath bezierPathWithRect: rect];
   [path addClip];

Source/NSScreen.m

@@ -72,7 +72,7 @@ static NSMutableArray *screenArray = nil;
 
 + (void) resetScreens
 {
-  screenArray = nil;
+  DESTROY(screenArray);
 }
 
 /**
@@ -260,49 +260,54 @@ static NSMutableArray *screenArray = nil;
  */
 - (NSDictionary*) deviceDescription
 {
-  NSMutableDictionary	*devDesc;
-  int			bps = 0;
-  NSSize		screenResolution;
-  NSString		*colorSpaceName = nil;
-  GSDisplayServer *srv;
-
-  /*
-   * This method generates a dictionary from the
-   * information we have gathered from the screen.
-   */
-
-  // Set the screen number in the current object.
-  devDesc = [NSMutableDictionary dictionary];
-  [devDesc setObject: [NSNumber numberWithInt: _screenNumber]
-	      forKey: @"NSScreenNumber"];
-
-  // This is assumed since we are in NSScreen.
-  [devDesc setObject: @"YES"  forKey: NSDeviceIsScreen];
-
-  // Add the NSDeviceSize dictionary item
-  [devDesc setObject: [NSValue valueWithSize: _frame.size]
-	      forKey: NSDeviceSize];
-
-  // Add the NSDeviceResolution dictionary item
-  srv = GSCurrentServer();
-  if (srv != nil)
+  if (_reserved == 0)
     {
-      screenResolution = [srv resolutionForScreen: _screenNumber];
-      [devDesc setObject: [NSValue valueWithSize: screenResolution]
-               forKey: NSDeviceResolution];
+      NSMutableDictionary	*devDesc;
+      int			bps = 0;
+      NSSize			screenResolution;
+      NSString			*colorSpaceName = nil;
+      GSDisplayServer		*srv;
+
+      /*
+       * This method generates a dictionary from the
+       * information we have gathered from the screen.
+       */
+
+      // Set the screen number in the current object.
+      devDesc = [[NSMutableDictionary alloc] initWithCapacity: 8];
+      [devDesc setObject: [NSNumber numberWithInt: _screenNumber]
+		  forKey: @"NSScreenNumber"];
+
+      // This is assumed since we are in NSScreen.
+      [devDesc setObject: @"YES"  forKey: NSDeviceIsScreen];
+
+      // Add the NSDeviceSize dictionary item
+      [devDesc setObject: [NSValue valueWithSize: _frame.size]
+		  forKey: NSDeviceSize];
+
+      // Add the NSDeviceResolution dictionary item
+      srv = GSCurrentServer();
+      if (srv != nil)
+	{
+	  screenResolution = [srv resolutionForScreen: _screenNumber];
+	  [devDesc setObject: [NSValue valueWithSize: screenResolution]
+		      forKey: NSDeviceResolution];
+	}
+
+      // Add the bits per sample entry
+      bps = NSBitsPerSampleFromDepth(_depth);
+      [devDesc setObject: [NSNumber numberWithInt: bps]
+		  forKey: NSDeviceBitsPerSample];
+
+      // Add the color space entry.
+      colorSpaceName = NSColorSpaceFromDepth(_depth);
+      [devDesc setObject: colorSpaceName
+		  forKey: NSDeviceColorSpaceName];
+		    
+      _reserved = (void*)[devDesc copy];
+      RELEASE(devDesc);
     }
-
-  // Add the bits per sample entry
-  bps = NSBitsPerSampleFromDepth(_depth);
-  [devDesc setObject: [NSNumber numberWithInt: bps]
-	      forKey: NSDeviceBitsPerSample];
-
-  // Add the color space entry.
-  colorSpaceName = NSColorSpaceFromDepth(_depth);
-  [devDesc setObject: colorSpaceName
-	      forKey: NSDeviceColorSpaceName];
-		
-  return [NSDictionary dictionaryWithDictionary: devDesc];
+  return (NSDictionary*)_reserved;
 }
 
 // Mac OS X methods
@@ -393,7 +398,10 @@ static NSMutableArray *screenArray = nil;
     {
       NSZoneFree(NSDefaultMallocZone(), _supportedWindowDepths);
     }
-
+  if (_reserved != 0)
+    {
+      [(id)_reserved release];
+    }
   [super dealloc];
 }