* Headers/Additions/GNUstepGUI/GSTheme.h: Added new method declaration

for drawButtonCell:...
	* Source/GSThemeDrawing.m: Added implementation for new method.  The
	purpose of the method is to allow the theme to override images with
	native images which may be theme dependent.
	* Source/NSButtonCell.m: Use the new method.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@28522 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,12 @@
+2009-08-23 14:05-EDT Gregory John Casamento <greg.casamento@gmail.com>
+
+	* Headers/Additions/GNUstepGUI/GSTheme.h: Added new method declaration
+	for drawButtonCell:...
+	* Source/GSThemeDrawing.m: Added implementation for new method.  The
+	purpose of the method is to allow the theme to override images with
+	native images which may be theme dependent.
+	* Source/NSButtonCell.m: Use the new method.
+
 2009-08-23 Doug Simons <dpsimons@testplant.com>
 	
 	* Source/GSHorizontalTypesetter.m: Remove unlock and

Headers/Additions/GNUstepGUI/GSTheme.h

@@ -558,6 +558,16 @@ APPKIT_EXPORT	NSString	*GSThemeWillDeactivateNotification;
  * Draw highlighted stepper down button
  */
 - (void) drawStepperHighlightDownButton: (NSRect) aRect;
+
+// Draw a button cell.
+/**
+ * In some themes it may be necessary to override the drawing 
+ * of an image a button cell and replace it with a rendered 
+ * version (from the native theme).
+ */
+- (void) drawButtonCellImage: (NSButtonCell *) cell 
+	           withFrame: (NSRect) aRect
+ 	            position: (NSPoint) position;
 @end
 
 /**

Source/GSThemeDrawing.m

@@ -544,5 +544,23 @@
   PSstroke();
 }
 
+- (void) drawButtonCellImage: (NSButtonCell *) cell 
+	           withFrame: (NSRect) aRect
+	            position: (NSPoint) position
+{
+  NSImage *anImage = [cell image];
+  BOOL disabled = [cell isEnabled];
+  BOOL dims = [cell imageDimsWhenDisabled];
+
+  if (disabled && dims)
+    {
+      [anImage dissolveToPoint: position fraction: 0.5];
+    }
+  else
+    {
+      [anImage compositeToPoint: position 
+	       operation: NSCompositeSourceOver];
+    }
+} 
 @end
 

Source/NSButtonCell.m

@@ -915,16 +915,10 @@ typedef struct _GSButtonCellFlags
         {
           position.y += size.height;
         }
-      
-      if (_cell.is_disabled && _image_dims_when_disabled)
-        {
-          [anImage dissolveToPoint: position fraction: 0.5];
-        }
-      else
-        {
-          [anImage compositeToPoint: position 
-                          operation: NSCompositeSourceOver];
-        }
+
+      [[GSTheme theme] drawButtonCellImage: self
+		       withFrame: aRect
+		       position: position];
     }
 }