Implemented adjusting subviews only the first time the splitview is

displayed; fixed some delegate messaging which was done the wrong way


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@9040 72102866-910b-0410-8b05-ffd578937521

Source/NSSplitView.m

@@ -3,7 +3,7 @@
 
    Allows multiple views to share a region in a window
 
-   Copyright (C) 1996 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
 
    Author: Robert Vasvari <vrobi@ddrummer.com>
    Date: Jul 1998
@@ -11,6 +11,8 @@
    Date: November 1998
    Author: Richard Frith-Macdonald <richard@brainstorm.co.uk>
    Date: January 1999
+   Author: Nicola Pero <n.pero@mi.flashnet.it>
+   Date: 2000, 2001
 
    This file is part of the GNUstep GUI Library.
 
@@ -56,6 +58,7 @@
       ASSIGN (_backgroundColor, [NSColor controlBackgroundColor]);
       ASSIGN (_dimpleImage, [NSImage imageNamed: @"common_Dimple.tiff"]); 
 
+      _never_displayed_before = YES;
       _autoresizes_subviews = NO;
     }
   return self;
@@ -392,21 +395,24 @@
   [self display];
 }
 
-- (void) adjustSubviews
+- (void) _adjustSubviews
 {
-  NSNotificationCenter	*nc = [NSNotificationCenter defaultCenter];
+  SEL delegateMethod = @selector (splitView:resizeSubviewsWithOldSize:);
   
-  [nc postNotificationName: NSSplitViewWillResizeSubviewsNotification
+  if (_delegate != nil  && [_delegate respondsToSelector: delegateMethod])     
-		    object: self];
-
-  if (_delegate && [_delegate 
-		     respondsToSelector:
-		       @selector(splitView:resizeSubviewsWithOldSize:)])
     {
       [_delegate splitView: self  resizeSubviewsWithOldSize: _frame.size];
     }
   else
-    {	/* split the area up evenly */
+    {
+      [self adjustSubviews];
+    }
+  
+}
+
+- (void) adjustSubviews
+{
+  NSNotificationCenter	*nc = [NSNotificationCenter defaultCenter];
   NSArray	*subs = [self subviews];
   unsigned	count = [subs count];
   NSView	*views[count];
@@ -420,6 +426,10 @@
   float	scale;
   float	running;
   
+  [nc postNotificationName: NSSplitViewWillResizeSubviewsNotification
+      object: self];
+  
+  
   [subs getObjects: views];
   if (_isVertical == NO)
     {
@@ -484,25 +494,10 @@
 	  [views[i] setFrameOrigin: newPoint];
 	}
     }
-    }
   [nc postNotificationName: NSSplitViewDidResizeSubviewsNotification
       object: self];
 }
 
-- (void) addSubview: (NSView*)aView
-	 positioned: (NSWindowOrderingMode)place
-	 relativeTo: (NSView*)otherView
-{
-  [super addSubview: aView positioned: place relativeTo: otherView];
-  [self adjustSubviews];
-}
-
-- (void) addSubview: aView
-{
-  [super addSubview: aView];
-  [self adjustSubviews];
-}
-
 - (float) dividerThickness 
 {
   /*
@@ -603,7 +598,6 @@ static inline NSPoint centerSizeInRect(NSSize innerSize, NSRect outerRect)
     }
 
   /* draw the dimples */
-  {
   for (i = 0; i < (count-1); i++)
     {
       v = [subs objectAtIndex: i];
@@ -621,7 +615,6 @@ static inline NSPoint centerSizeInRect(NSSize innerSize, NSRect outerRect)
       [self drawDividerInRect: divRect];
     }
 }
-}
 
 - (NSImage*) dimpleImage
 {
@@ -642,10 +635,44 @@ static inline NSPoint centerSizeInRect(NSSize innerSize, NSRect outerRect)
 - (void) resizeWithOldSuperviewSize: (NSSize)oldSize
 {
   [super resizeWithOldSuperviewSize: oldSize];
-  [self adjustSubviews];
+  [self _adjustSubviews];
   [_window invalidateCursorRectsForView: self];
 }
 
+- (void) displayIfNeededInRectIgnoringOpacity: (NSRect)aRect
+{
+  if (_window == nil)
+    {
+      return;
+    }
+  
+  if (_never_displayed_before == YES)
+    {
+      [self _adjustSubviews];
+      _never_displayed_before = NO;
+    }
+
+  [super displayIfNeededInRectIgnoringOpacity: aRect];
+}
+
+- (void) displayRectIgnoringOpacity: (NSRect)aRect
+{
+  if (_window == nil)
+    {
+      return;
+    }
+  
+  if (_never_displayed_before == YES)
+    {
+      [self _adjustSubviews];
+      _never_displayed_before = NO;
+    }
+
+  [super displayRectIgnoringOpacity: aRect];
+}
+
+
+
 - (id) delegate
 {
   return _delegate;