Changes for backend miniwin control

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@13289 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -11,6 +11,9 @@
 	Add some documentation.
 	* Source/NSWindow.m ([NSWindow -dealloc]): Check for context
 	before undefining gstate.
+	([NSWindow -miniaturize:]): Don't create miniwindow if server
+	can't handle it.
+	* Source/GSDisplayServer.m (-appOwnsMiniwindow): Implement.
 
 2002-04-01  Gregory Casamento <greg_casamento@yahoo.com>
 

Headers/gnustep/gui/GSDisplayServer.h

@@ -95,6 +95,7 @@ GSDisplayServer * GSCurrentServer(void);
 - (void) windowbacking: (NSBackingStoreType)type;
 - (void) titlewindow: (NSString *) window_title : (int) win;
 - (void) miniwindow: (int) win;
+- (BOOL) appOwnsMiniwindow;
 - (void) windowdevice: (int) win;
 - (void) orderwindow: (int) op : (int) otherWin : (int) win;
 - (void) movewindow: (NSPoint)loc : (int) win;

Source/GSDisplayServer.m

@@ -461,6 +461,16 @@ GSCurrentServer(void)
   [self subclassResponsibility: _cmd];
 }
 
+/** Returns YES if the application should create the miniwindow counterpart
+    to the full size window and own it. Some display systems handle the
+    miniwindow themselves. In this case the backend subclass should
+    override this method to return NO. */
+- (BOOL) appOwnsMiniwindow
+{
+  return YES;
+}
+
+
 /** Sets the window drawable for the current NSGraphicsContext,
     typically by calling [NSGraphicsContext -DPSsetgcdrawable::::],
     although depending on the concrete implmentation, more information

Source/NSWindow.m

@@ -2101,6 +2101,7 @@ resetCursorRectsForView(NSView *theView)
   the screen and it's counterpart (mini)window is displayed.  */
 - (void) miniaturize: (id)sender
 {
+  GSDisplayServer *srv = GSServerForWindow(self);
   [nc postNotificationName: NSWindowWillMiniaturizeNotification
 		    object: self];
   
@@ -2113,7 +2114,7 @@ resetCursorRectsForView(NSView *theView)
   /*
    * Ensure that we have a miniwindow counterpart.
    */
-  if (_counterpart == 0)
+  if (_counterpart == 0 && [srv appOwnsMiniwindow])
     {
       NSWindow		*mini;
       NSMiniWindowView	*v;
@@ -2131,7 +2132,7 @@ resetCursorRectsForView(NSView *theView)
       RELEASE(v);
     }
   [self _lossOfKeyOrMainWindow];
-  [GSServerForWindow(self) miniwindow: _windowNum];
+  [srv miniwindow: _windowNum];
   _f.visible = NO;
   
   [nc postNotificationName: NSWindowDidMiniaturizeNotification