* NSApplication.h added windows_need_update as autodisplay ivar.

* NSApplication.m in init set default for main_menu, windows_need_update.
	* NSApplication.m in run added support for OPENSTEP autodisplay mechanism.
	* NSApplication.m _eventMatchingMask: reformat.
	* NSApplication.m nextEventMatchingMask:untilDate:inMode:dequeue:
		move calls to _flushWindows to XDPS backend.
	* NSApplication.m implemented updateWindows.
	* NSApplication.m implemented setWindowsNeedUpdate:.
	* NSApplication.m setMainMenu: test for menu prior to release.
	* NSActionCell.m removed setState: method.
	* NSActionCell.m copyWithZone: optimized ivar copying.
	* NSButtonCell.m added _init and moved common defaults to this method.
	* NSButtonCell.m initImageCell: and initTextCell: minor optimizations.
	* NSButtonCell.m setAlternateTitle: optimize and use ASSIGN macro.
	* NSButtonCell.m setKeyEquivalent: remove [copy release].
	* NSButtonCell.m setKeyEquivalentFont:size: optimize.
	* NSButtonCell.m copyWithZone: optimized ivar copying where possible.
	* NSCell.m _init removed call to [super init].
	* NSCell.m initTextCell: removed duplicate default initializers.
	* NSCell.m setImage: rewrote to use ASSIGN macro.
	* NSCell.m setDoubleValue: rewrote to use ASSIGN macro.
	* NSCell.m setFloatValue: rewrote to use ASSIGN macro.
	* NSCell.m setIntValue: rewrote to use ASSIGN macro.
	* NSCell.m setStringValue: rewrote to use ASSIGN macro.
	* NSCell.m setFont: rewrote to use ASSIGN macro.
	* NSCell.m setRepresentedObject: rewrote to use ASSIGN macro.
	* NSCell.m copyWithZone: optimized ivar copying where possible.
	* NSClipView.m viewBoundsChanged: minor optimization.
	* NSClipView.m viewFrameChanged: minor optimization.
	* NSClipView.m scaleUnitSquareToSize: minor optimization.
	* NSClipView.m setBoundsOrigin: minor optimization.
	* NSClipView.m setBoundsSize: minor optimization.
	* NSClipView.m setFrameSize: minor optimization.
	* NSClipView.m setFrameOrigin: minor optimization.
	* NSClipView.m setFrame: minor optimization.
	* NSClipView.m translateOriginToPoint: minor optimization.
	* NSMatrix.m eliminate retain/release of selected cell via ASSIGN.
	* NSMatrix.m initWithFrame: remove duplicate setting of selected row and
		column.
	* NSMatrix.m removeColumn: rewrite so that col is removed before new
		selection is attempted (needed because selected cell is not retained).
	* NSMatrix.m removeRow: rewrite so that row is removed before new
		selection is attempted (needed because selected cell is not retained).
	* NSMatrix.m deselectAllCells per OS spec try to select a cell at end
		if empty selection is not allowed.
	* NSMatrix.m deselectSelectedCell set default selected row/col to 0.
	* NSMatrix.m mouseDown: optimize for new drawing behaviour.
	* NSMenu.m setSelectedCell: eliminate use of retain/release of selected
		cell via ASSIGN.
	* NSMenuItem.m copyWithZone: optimized ivar copying where possible.
	* NSMenuItem.m dealloc minor optimization.
	* NSMenuItem.m setTarget: minor optimization.
	* NSScroller.m trackScrollButtons: heavily optimized.
	* NSScroller.m sendAction: reimplemented to use sendAction: per spec also
		optimized.
	* NSText.m implemented init method.
	* NSText.m initWithFrame: fixed initialization of ivars which are released
		to retain.
	* NSText.m dealloc add release of retained ivars.
	* NSView.m dealloc add release of retained ivars.
	* NSView.m displayRect: and _addSubviewForNeedingDisplay reformatted code
		and rewrote comments.
	* NSWindow.m setFrame:display: rewrote for clarity.
	* NSWindow.m implemented update method per OPENSTEP spec.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@2941 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,70 @@
+Sun Aug 30 1998  Felipe A. Rodriguez  <far@ix.netcom.com>
+
+	* NSApplication.h added windows_need_update as autodisplay ivar. 
+	* NSApplication.m in init set default for main_menu, windows_need_update. 
+	* NSApplication.m in run added support for OPENSTEP autodisplay mechanism. 
+	* NSApplication.m _eventMatchingMask: reformat. 
+	* NSApplication.m nextEventMatchingMask:untilDate:inMode:dequeue:
+		move calls to _flushWindows to XDPS backend. 
+	* NSApplication.m implemented updateWindows. 
+	* NSApplication.m implemented setWindowsNeedUpdate:. 
+	* NSApplication.m setMainMenu: test for menu prior to release. 
+	* NSActionCell.m removed setState: method. 
+	* NSActionCell.m copyWithZone: optimized ivar copying. 
+	* NSButtonCell.m added _init and moved common defaults to this method. 
+	* NSButtonCell.m initImageCell: and initTextCell: minor optimizations. 
+	* NSButtonCell.m setAlternateTitle: optimize and use ASSIGN macro. 
+	* NSButtonCell.m setKeyEquivalent: remove [copy release]. 
+	* NSButtonCell.m setKeyEquivalentFont:size: optimize. 
+	* NSButtonCell.m copyWithZone: optimized ivar copying where possible. 
+	* NSCell.m _init removed call to [super init]. 
+	* NSCell.m initTextCell: removed duplicate default initializers. 
+	* NSCell.m setImage: rewrote to use ASSIGN macro. 
+	* NSCell.m setDoubleValue: rewrote to use ASSIGN macro. 
+	* NSCell.m setFloatValue: rewrote to use ASSIGN macro. 
+	* NSCell.m setIntValue: rewrote to use ASSIGN macro. 
+	* NSCell.m setStringValue: rewrote to use ASSIGN macro. 
+	* NSCell.m setFont: rewrote to use ASSIGN macro. 
+	* NSCell.m setRepresentedObject: rewrote to use ASSIGN macro. 
+	* NSCell.m copyWithZone: optimized ivar copying where possible. 
+	* NSClipView.m viewBoundsChanged: minor optimization. 
+	* NSClipView.m viewFrameChanged: minor optimization. 
+	* NSClipView.m scaleUnitSquareToSize: minor optimization. 
+	* NSClipView.m setBoundsOrigin: minor optimization. 
+	* NSClipView.m setBoundsSize: minor optimization. 
+	* NSClipView.m setFrameSize: minor optimization. 
+	* NSClipView.m setFrameOrigin: minor optimization. 
+	* NSClipView.m setFrame: minor optimization. 
+	* NSClipView.m translateOriginToPoint: minor optimization. 
+	* NSMatrix.m eliminate retain/release of selected cell via ASSIGN. 
+	* NSMatrix.m initWithFrame: remove duplicate setting of selected row and
+		column. 
+	* NSMatrix.m removeColumn: rewrite so that col is removed before new
+		selection is attempted (needed because selected cell is not retained). 
+	* NSMatrix.m removeRow: rewrite so that row is removed before new
+		selection is attempted (needed because selected cell is not retained). 
+	* NSMatrix.m deselectAllCells per OS spec try to select a cell at end
+		if empty selection is not allowed. 
+	* NSMatrix.m deselectSelectedCell set default selected row/col to 0. 
+	* NSMatrix.m mouseDown: optimize for new drawing behaviour. 
+	* NSMenu.m setSelectedCell: eliminate use of retain/release of selected 
+		cell via ASSIGN. 
+	* NSMenuItem.m copyWithZone: optimized ivar copying where possible. 
+	* NSMenuItem.m dealloc minor optimization. 
+	* NSMenuItem.m setTarget: minor optimization. 
+	* NSScroller.m trackScrollButtons: heavily optimized. 
+	* NSScroller.m sendAction: reimplemented to use sendAction: per spec also
+		optimized. 
+	* NSText.m implemented init method. 
+	* NSText.m initWithFrame: fixed initialization of ivars which are released 
+		to retain. 
+	* NSText.m dealloc add release of retained ivars. 
+	* NSView.m dealloc add release of retained ivars. 
+	* NSView.m displayRect: and _addSubviewForNeedingDisplay reformatted code 
+		and rewrote comments. 
+	* NSWindow.m setFrame:display: rewrote for clarity. 
+	* NSWindow.m implemented update method per OPENSTEP spec. 
+
 Thurs Aug 20 1998  Felipe A. Rodriguez  <far@ix.netcom.com>
 
 	* NSTextView.m commented out references to defaultTypingAttributes

Headers/gnustep/gui/NSApplication.h

@@ -75,6 +75,7 @@ extern NSString *NSEventTrackingRunLoopMode;
   BOOL app_should_quit;
   BOOL app_is_active;
   BOOL app_is_hidden;
+  BOOL windows_need_update;
   NSImage *app_icon;
 
   // Reserved for back-end use

Source/NSActionCell.m

@@ -138,17 +138,6 @@
       [(NSControl *)control_view updateCell: self];
 }
 
-//
-// Setting the NSCell's State 
-//
-- (void)setState:(int)value
-{
-  [super setState: value];
-  if (control_view)
-    if ([control_view isKindOfClass: [NSControl class]])
-      [(NSControl *)control_view updateCell: self];
-}
-
 //
 // Manipulating NSActionCell Values 
 //
@@ -225,9 +214,9 @@
 {
   NSActionCell* c = [super copyWithZone:zone];
 
-  [c setTag:tag];
+  c->tag = tag;
-  [c setTarget:target];
+  c->target = target;
-  [c setAction:action];
+  c->action = action;
 
   return c;
 }

Source/NSApplication.m

@@ -7,6 +7,8 @@
 
    Author:  Scott Christley <scottc@net-community.com>
    Date: 1996
+   Author:  Felipe A. Rodriguez <far@ix.netcom.com>
+   Date: August 1998
   
    This file is part of the GNUstep GUI Library.
 
@@ -116,6 +118,8 @@ static id NSApp;
   window_list = [NSMutableArray new];
   window_count = 1;
 
+  main_menu = nil;
+  windows_need_update = YES;
   //
   // Event handling setup
   //
@@ -222,8 +226,8 @@ static id NSApp;
 
 - (void)run
 {
-  NSEvent *e;
+NSEvent *e;
-  NSAutoreleasePool* pool;
+NSAutoreleasePool* pool;
 
 	NSDebugLog(@"NSApplication -run\n");
 
@@ -232,24 +236,24 @@ static id NSApp;
 	app_should_quit = NO;
 	app_is_running = YES;
 
-  do
+	do	{
-    {
 		pool = [NSAutoreleasePool new];				
 
 		e = [self nextEventMatchingMask:NSAnyEventMask			
 				  untilDate:[NSDate distantFuture]				
-		inMode:NSDefaultRunLoopMode dequeue:YES];
+				  inMode:NSDefaultRunLoopMode 
+				  dequeue:YES];
 		if (e)
 			[self sendEvent: e];
-      else
+		else										// if Null event call back
-	{
+			[self handleNullEvent];					// end method to handle it
-	  // Null event
+
-	  // Call the back-end method to handle it
+		if(windows_need_update)						// send an update message
-	  [self handleNullEvent];
+			[self updateWindows];					// to all visible windows
-	}
+									
 		[pool release];
-    } while (!app_should_quit);
+		} 
-  app_is_running = YES;
+	while (!app_should_quit);
 
 	NSDebugLog(@"NSApplication end of run loop\n");
 }
@@ -410,19 +414,22 @@ static id NSApp;
 
 - (NSEvent*)_eventMatchingMask:(unsigned int)mask
 {
-  NSEvent* event;
+NSEvent* event;
-  int i, count = [event_queue count];
+int i, count = [event_queue count];
 
 	[self getNextEvent];
 
-  /* Get an event from the events queue */
+	if ((count = [event_queue count])) 					// Get an event from
-  if ((count = [event_queue count])) {
+		{												// the events queue
-    for (i = 0; i < count; i++) {
+		for (i = 0; i < count; i++) 
+			{
 			event = [event_queue objectAtIndex:i];
-      if ([self event:event matchMask:mask]) {
+			if ([self event:event matchMask:mask]) 
+				{
 				[event retain];
 				[event_queue removeObjectAtIndex:i];
 				[self setCurrentEvent:event];
+
 				return [event autorelease];
       			}
     		}
@@ -436,10 +443,10 @@ static id NSApp;
 			    		inMode:(NSString *)mode
 			   			dequeue:(BOOL)flag
 {
-  NSRunLoop* currentLoop = [NSRunLoop currentRunLoop];
+NSRunLoop* currentLoop = [NSRunLoop currentRunLoop];
-  NSEventType type;
+NSEventType type;
-  NSEvent *event;
+NSEvent *event;
-  BOOL done = NO;
+BOOL done = NO;
 
 	event = [self _eventMatchingMask:mask];
 	if (event)
@@ -447,22 +454,19 @@ static id NSApp;
 	else if (!expiration)
 		expiration = [NSDate distantFuture];
    
-  // Not in queue so wait for next event
+	while (!done) 										// Not in queue so wait
-  while (!done) {
+		{												// for next event
 		NSDate *limitDate, *originalLimitDate;
-
+								// Retain the limitDate so it doesn't get 
-    // flush any windows that need it
+								// release accidentally by runMode:beforeDate: 
-    [NSWindow _flushWindows];
+								// if a timer which has this date as fire date 
-    [self _flushCommunicationChannels];
+								// gets released.
-
-    /* Retain the limitDate so it doesn't get release accidentally by
-       runMode:beforeDate: if a timer which has this date as fire date gets
-       released. */
 		limitDate = [[currentLoop limitDateForMode:mode] retain];
 		originalLimitDate = limitDate;
 
 		event = [self _eventMatchingMask:mask];
-    if (event) {
+		if (event) 
+			{
       		[limitDate release];
       		break;
     		}
@@ -480,20 +484,12 @@ static id NSApp;
       		break;
   		}
 
-  // flush any windows that need it
-  [NSWindow _flushWindows];
-  [self _flushCommunicationChannels];
-
 	type = [event type];
-
 											// Unhide the cursor if necessary
-  // but only if its not a null event
+	if (event != gnustep_gui_null_event)	// and event is not a null event
-  if (event != gnustep_gui_null_event)
+		{											// do so only if we should
-    {
+		if ([NSCursor isHiddenUntilMouseMoves])		// unhide when mouse moves 
-      // Only if we should unhide when mouse moves
+			{		 								// and event is mouse event
-      if ([NSCursor isHiddenUntilMouseMoves])
-	{
-	  // Make sure the event is a mouse event before unhiding
 			if ((type == NSLeftMouseDown) || (type == NSLeftMouseUp)
 					|| (type == NSRightMouseDown) || (type == NSRightMouseUp)
 					|| (type == NSMouseMoved))
@@ -712,23 +708,25 @@ static id NSApp;
 
 - (void)setWindowsNeedUpdate:(BOOL)flag
 {
+	windows_need_update = flag;
 }
 
-- (void)updateWindows
+- (void)updateWindows							// send an update message to
-{
+{												// all visible windows
-  int i, count;
+int i, count;									
-  NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
+NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
 
   												// notify that we will update
-  [nc postNotificationName: NSApplicationWillUpdateNotification
+	[nc postNotificationName:NSApplicationWillUpdateNotification object:self];
-      object: self];
 
 	for (i = 0, count = [window_list count]; i < count; i++)
-    [[window_list objectAtIndex:i] update];
+		{
-
+		NSWindow *win = [window_list objectAtIndex:i];
+		if([win isVisible])								// send update only if
+    		[win update];								// window is visible
+		}
   												// notify that we did update
-  [nc postNotificationName: NSApplicationDidUpdateNotification
+	[nc postNotificationName:NSApplicationDidUpdateNotification object:self];
-      object: self];
 }
 
 - (NSArray *)windows
@@ -785,6 +783,7 @@ static id NSApp;
 
   // Release old and retain new
   [aMenu retain];
+  if(main_menu)
  	 [main_menu release];
   main_menu = aMenu;
 

Source/NSButtonCell.m

@@ -8,6 +8,8 @@
    Author:  Scott Christley <scottc@net-community.com>
 	    Ovidiu Predescu <ovidiu@net-community.com>
    Date: 1996
+   Author:  Felipe A. Rodriguez <far@ix.netcom.com>
+   Date: August 1998
    
    This file is part of the GNUstep GUI Library.
 
@@ -40,8 +42,7 @@
 #include <AppKit/NSFont.h>
 #include <AppKit/NSImage.h>
 
-#define ASSIGN(a, b) \
+#define ASSIGN(a, b) 	[b retain]; \
-  [b retain]; \
 						[a release]; \
 						a = b;
 
@@ -56,45 +57,47 @@
 + (void)initialize
 {
   if (self == [NSButtonCell class])
-    {
+	[self setVersion:1];								// Initial version
-      // Initial version
-      [self setVersion:1];
-    }
 }
 
 //
 // Instance methods
 //
+- _init
+{
+  cell_enabled = YES;
+  transparent = NO;
+  cell_bordered = YES;
+  showAltStateMask = NSNoCellMask;	// configure as a NSMomentaryPushButton
+  highlightsByMask = NSPushInCellMask | NSChangeGrayCellMask;
+  delayInterval = 0.4;
+  repeatInterval = 0.075;
+  altContents = nil;
+	
+  return self;
+}
+
 - init
 {
   [self initTextCell:@"Button"];
+	
   return self;
 }
 
 - initImageCell:(NSImage *)anImage
 {
   [super initImageCell:anImage];
-  [self setStringValue:@"Button"];
+	
-  [self setButtonType:NSMomentaryPushButton];
+  contents = nil;
-  [self setEnabled:YES];
+	
-  [self setTransparent:NO];
+  return [self _init];
-  [self setBordered:YES];
-  delayInterval = 0.4;
-  repeatInterval = 0.075;
-  return self;
 }
 
 - initTextCell:(NSString *)aString
 {
   [super initTextCell:aString];
-  altContents = nil;
+	
-  [self setButtonType:NSMomentaryPushButton];
+  return [self _init];
-  [self setEnabled:YES];
-  [self setTransparent:NO];
-  [self setBordered:YES];
-  delayInterval = 0.4;
-  repeatInterval = 0.075;
-  return self;
 }
 
 - (void)dealloc
@@ -103,6 +106,7 @@
   [altImage release];
   [keyEquivalent release];
   [keyEquivalentFont release];
+
   [super dealloc];
 }
 
@@ -116,9 +120,10 @@
 
 - (void)setAlternateTitle:(NSString *)aString
 {
-  altContents = [aString copy];
+NSString* _string = [aString copy];
-  // update our state
+
-  [self setState:[self state]];
+  ASSIGN(altContents, _string);
+  [self setState:[self state]];						// update our state
 }
 
 - (void)setFont:(NSFont *)fontObject
@@ -129,8 +134,7 @@
 - (void)setTitle:(NSString *)aString
 {
   [self setStringValue:aString];
-  // update our state
+  [self setState:[self state]];						// update our state
-  [self setState:[self state]];
 }
 
 - (NSString *)title
@@ -199,9 +203,9 @@
 
 - (void)setKeyEquivalent:(NSString *)key	
 { 
-  id copy = [key copy];
+NSString* _string = [key copy];
-  ASSIGN(keyEquivalent, copy);
+
-  [copy release];
+  ASSIGN(keyEquivalent, _string);
 }
 
 - (void)setKeyEquivalentModifierMask:(unsigned int)mask
@@ -217,7 +221,9 @@
 - (void)setKeyEquivalentFont:(NSString *)fontName 
 						size:(float)fontSize
 {
-  ASSIGN(keyEquivalentFont, [NSFont fontWithName:fontName size:fontSize]);
+NSFont* font = [NSFont fontWithName:fontName size:fontSize];
+
+  ASSIGN(keyEquivalentFont, font);
 }
 
 //
@@ -337,8 +343,7 @@
 - (void)drawWithFrame:(NSRect)cellFrame
 	       	   inView:(NSView *)controlView
 {
-  // Save last view drawn to
+  control_view = controlView;				// Save last view cell was drawn to
-  control_view = controlView;
 }
 
 //
@@ -352,12 +357,12 @@
 {
   NSButtonCell* c = [super copyWithZone:zone];
 
-  [c setAlternateTitle:altContents];
+  c->altContents = [[altContents copy] retain];
-  [c setAlternateImage:altImage];
+  ASSIGN(c->altImage, altImage);
-  [c setKeyEquivalent:keyEquivalent];
+  c->keyEquivalent = [[keyEquivalent copy] retain];
-  [c setKeyEquivalentFont:keyEquivalentFont];
+  ASSIGN(c->keyEquivalentFont, keyEquivalentFont);
-  [c setKeyEquivalentModifierMask:keyEquivalentModifierMask];
+  c->keyEquivalentModifierMask = keyEquivalentModifierMask;
-  [c setTransparent:transparent];
+  c->transparent = transparent;
   c->highlightsByMask = highlightsByMask;
   c->showAltStateMask = showAltStateMask;
 
@@ -387,6 +392,7 @@
   altImage = [aDecoder decodeObject];
   [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &transparent];
   NSDebugLog(@"NSButtonCell: finish decoding\n");
+
   return self;
 }
 

Source/NSCell.m

@@ -7,6 +7,8 @@
 
    Author:  Scott Christley <scottc@net-community.com>
    Date: 1996
+   Author:  Felipe A. Rodriguez <far@ix.netcom.com>
+   Date: August 1998
    
    This file is part of the GNUstep GUI Library.
 
@@ -39,6 +41,10 @@
 #include <AppKit/NSCell.h>
 #include <AppKit/NSEvent.h>
 
+#define ASSIGN(a, b) 	[b retain]; \
+						[a release]; \
+						a = b;
+
 @implementation NSCell
 
 //
@@ -70,7 +76,6 @@
 //
 - _init
 {
-  self = [super init];
   cell_type = NSNullCellType;
   cell_image = nil;
   cell_font = nil;
@@ -88,6 +93,7 @@
   cell_float_left = 0;
   cell_float_right = 0;
   action_mask = NSLeftMouseUpMask;
+
   return self;
 }
 
@@ -110,6 +116,7 @@
   cell_image = [anImage retain];
   image_position = NSImageOnly;
   cell_font = [[NSFont userFontOfSize:0] retain];
+
   return self;
 }
 
@@ -123,11 +130,9 @@
   contents = [aString retain];
   cell_type = NSTextCellType;
   text_align = NSCenterTextAlignment;
-  cell_image = nil;
-  image_position = NSNoImage;
   cell_float_autorange = YES;
-  cell_float_left = 0;
   cell_float_right = 6;
+
   return self;
 }
 
@@ -220,14 +225,10 @@
 
 - (void)setImage:(NSImage *)anImage
 {							 
-  // Not an image class --then forget it
+  if (![anImage isKindOfClass:[NSImage class]])			// set the image only 
-  if (![anImage isKindOfClass:[NSImage class]])
+    return;												// if it's an NSImage 
-    return;
 
-  // Only set the image if we are an image cell
+  ASSIGN(cell_image, anImage);		
-  [anImage retain];
-  [cell_image release];
-  cell_image = anImage;
   [self setType:NSImageCellType];
 }
 
@@ -256,36 +257,35 @@
 
 - (void)setDoubleValue:(double)aDouble
 {
-  NSNumber* number = [NSNumber numberWithDouble:aDouble];
+NSString* number_string = [[NSNumber numberWithDouble:aDouble] stringValue];
 
-  [contents release];
+  ASSIGN(contents, number_string);
-  contents = [[number stringValue] retain];
 }
 
 - (void)setFloatValue:(float)aFloat
 {
-  NSNumber* number = [NSNumber numberWithFloat:aFloat];
+NSString* number_string = [[NSNumber numberWithFloat:aFloat] stringValue];
 
-  [contents release];
+  ASSIGN(contents, number_string);
-  contents = [[number stringValue] retain];
 }
 
 - (void)setIntValue:(int)anInt
 {
-  NSNumber* number = [NSNumber numberWithInt:anInt];
+NSString* number_string = [[NSNumber numberWithInt:anInt] stringValue];
 
-  [contents release];
+  ASSIGN(contents, number_string);
-  contents = [[number stringValue] retain];
 }
 
 - (void)setStringValue:(NSString *)aString
 {
-  aString = [aString copy];
+NSString* _string;
-  [contents release];
+
 	if (!aString)
-    contents = @"";
+		_string = @"";
 	else
-    contents = aString;
+		_string = [aString copy];
+
+	ASSIGN(contents, _string);
 }
 
 //
@@ -354,13 +354,10 @@
 
 - (void)setFont:(NSFont *)fontObject
 {
-  // Not a font --then forget it
+  if (![fontObject isKindOfClass:[NSFont class]])		// set the font only
-  if (![fontObject isKindOfClass:[NSFont class]])
+    return;												// if it's an NSFont
-    return;
 
-  [fontObject retain];
+  ASSIGN(cell_font, fontObject);
-  [cell_font release];
-  cell_font = fontObject;
 }
 
 - (void)setSelectable:(BOOL)flag
@@ -769,36 +766,32 @@
 
 - (void)setRepresentedObject:(id)anObject
 {
-  [anObject retain];
+  ASSIGN(represented_object, anObject);
-  [represented_object release];
-  represented_object = anObject;
 }
 
 - (id)copyWithZone:(NSZone*)zone
 {
-  NSCell* c;
+  NSCell* c = [[isa allocWithZone: zone] init];
 
-  c = [[isa allocWithZone: zone] init];
+  c->contents = [[contents copy] retain];
-
+  ASSIGN(c->cell_image, cell_image);
-  [c setStringValue:contents];
+  ASSIGN(c->cell_font, cell_font);
-  [c setImage:cell_image];
+  c->cell_state = cell_state;
-  [c setFont:cell_font];
-  [c setState:cell_state];
   c->cell_highlighted = cell_highlighted;
-  [c setEnabled:cell_enabled];
+  c->cell_enabled = cell_enabled;
-  [c setEditable:cell_editable];
+  c->cell_editable = cell_editable;
-  [c setBordered:cell_bordered];
+  c->cell_bordered = cell_bordered;
-  [c setBezeled:cell_bezeled];
+  c->cell_bezeled = cell_bezeled;
-  [c setScrollable:cell_scrollable];
+  c->cell_scrollable = cell_scrollable;
-  [c setSelectable:cell_selectable];
+  c->cell_selectable = cell_selectable;
   [c setContinuous:cell_continuous];
-  [c setFloatingPointFormat:cell_float_autorange
+  c->cell_float_autorange = cell_float_autorange;
-	left:cell_float_left
+  c->cell_float_left = cell_float_left;
-	right:cell_float_right];
+  c->cell_float_right = cell_float_right;
   c->image_position = image_position;
-  [c setType:cell_type];
+  c->cell_type = cell_type;
-  [c setAlignment:text_align];
+  c->text_align = text_align;
-  [c setEntryType:entry_type];
+  c->entry_type = entry_type;
   c->control_view = control_view;
   c->cell_size = cell_size;
   [c setRepresentedObject:represented_object];

Source/NSClipView.m

@@ -167,55 +167,55 @@
 
 - (void)viewBoundsChanged:(NSNotification*)aNotification
 {
-  [[self superview] reflectScrolledClipView:self];
+  [super_view reflectScrolledClipView:self];
 }
 
 - (void)viewFrameChanged:(NSNotification*)aNotification
 {
   [self setBoundsOrigin:[self constrainScrollPoint:bounds.origin]];
-  [[self superview] reflectScrolledClipView:self];
+  [super_view reflectScrolledClipView:self];
 }
 
 - (void)scaleUnitSquareToSize:(NSSize)newUnitSize
 {
   [super scaleUnitSquareToSize:newUnitSize];
-  [[self superview] reflectScrolledClipView:self];
+  [super_view reflectScrolledClipView:self];
 }
 
 - (void)setBoundsOrigin:(NSPoint)aPoint
 {
   [super setBoundsOrigin:aPoint];
-  [[self superview] reflectScrolledClipView:self];
+  [super_view reflectScrolledClipView:self];
 }
 
 - (void)setBoundsSize:(NSSize)aSize
 {
   [super setBoundsSize:aSize];
-  [[self superview] reflectScrolledClipView:self];
+  [super_view reflectScrolledClipView:self];
 }
 
 - (void)setFrameSize:(NSSize)aSize
 {
   [super setFrameSize:aSize];
-  [[self superview] reflectScrolledClipView:self];
+  [super_view reflectScrolledClipView:self];
 }
 
 - (void)setFrameOrigin:(NSPoint)aPoint
 {
   [super setFrameOrigin:aPoint];
-  [[self superview] reflectScrolledClipView:self];
+  [super_view reflectScrolledClipView:self];
 }
 
 - (void)setFrame:(NSRect)rect
 {
   [super setFrame:rect];
-  [[self superview] reflectScrolledClipView:self];
+  [super_view reflectScrolledClipView:self];
 }
 
 - (void)translateOriginToPoint:(NSPoint)aPoint
 {
   [super translateOriginToPoint:aPoint];
-  [[self superview] reflectScrolledClipView:self];
+  [super_view reflectScrolledClipView:self];
 }
 
 - (id)documentView				{ return _documentView; }

Source/NSMatrix.m

@@ -381,7 +381,6 @@ static int mouseDownFlags = 0;
   [self setSelectionByRect:YES];
   [self setAutosizesCells:YES];
   if (mode == NSRadioModeMatrix && numRows && numCols) {
-    selectedRow = selectedColumn = 0;
     [self selectCellAtRow:0 column:0];
   }
   else
@@ -557,14 +556,17 @@ static int mouseDownFlags = 0;
   if (column >= numCols)
     return;
 
-  if (column == selectedColumn)
-    [self selectCellAtRow:0 column:0];
-
   for (i = 0; i < numRows; i++)
     [[cells objectAtIndex:i] removeObjectAtIndex:column];
 
   removeColumn (selectedCells, column);
   numCols--;
+
+  if (column == selectedColumn)
+	{
+	selectedCell = nil;
+    [self selectCellAtRow:0 column:0];
+	}
 }
 
 - (void)removeRow:(int)row
@@ -572,12 +574,15 @@ static int mouseDownFlags = 0;
   if (row >= numRows)
     return;
 
-  if (row == selectedRow)
-    [self selectCellAtRow:0 column:0];
-
   [cells removeObjectAtIndex:row];
   removeRow (selectedCells, row);
   numRows--;
+
+  if (row == selectedRow)
+	{
+	selectedCell = nil;
+    [self selectCellAtRow:0 column:0];
+	}
 }
 
 - (void)renewRows:(int)newRows
@@ -712,7 +717,7 @@ static int mouseDownFlags = 0;
 
   if (mode == NSRadioModeMatrix) {
     if (value) {
-      ASSIGN(selectedCell, aCell);
+	  selectedCell = aCell;							// select current cell
       selectedRow = row;
       selectedColumn = column;
       [selectedCell setState:1];
@@ -745,14 +750,17 @@ static int mouseDownFlags = 0;
 	((tMatrix)selectedCells)->matrix[i][j] = NO;
       }
   }
+
+  if(!allowsEmptySelection)								// if we don't allow an
+	[self selectCellAtRow:0 column:0];					// empty selection
 }
 
 - (void)deselectSelectedCell
 {
   [selectedCell setState:0];
   selectedCell = nil;
-  selectedRow = -1;
+  selectedRow = 0;
-  selectedColumn = -1;
+  selectedColumn = 0;
 }
 
 - (void)selectAll:(id)sender
@@ -761,7 +769,7 @@ static int mouseDownFlags = 0;
   NSArray* row;
 
   /* Make the selected cell the cell at (0, 0) */
-  ASSIGN(selectedCell, [self cellAtRow:0 column:0]);
+  selectedCell = [self cellAtRow:0 column:0];		// select current cell
   selectedRow = 0;
   selectedColumn = 0;
 
@@ -792,7 +800,7 @@ static int mouseDownFlags = 0;
   else if (!aCell)
     return;
 
-  ASSIGN(selectedCell, aCell);
+  selectedCell = aCell;								// select current cell
   selectedRow = row;
   selectedColumn = column;
   [selectedCell setState:1];
@@ -1147,6 +1155,7 @@ BOOL done = NO;
 NSRect rect;
 id aCell, previousCell = nil, selectedCellTarget;
 NSRect previousCellRect;
+NSApplication *app = [NSApplication sharedApplication];
 static MPoint anchor = {0, 0};
 
 	mouseDownFlags = [theEvent modifierFlags];
@@ -1174,40 +1183,43 @@ static MPoint anchor = {0, 0};
 
       		switch (mode) 
 				{
-				case NSTrackModeMatrix:						// in Track mode
+				case NSTrackModeMatrix:				// in Track mode the cell
-					ASSIGN(selectedCell, aCell);			// the cell should
+					selectedCell = aCell;			// should track the mouse
-					selectedRow = row;						// track the mouse
+					selectedRow = row;				// until the cursor either
-					selectedColumn = column;				// until the cursor
+					selectedColumn = column;		// leaves the cellframe or
-															// either leaves
+													// NSLeftMouseUp occurs
-					if([aCell trackMouse:lastEvent			// the cellframe or
+					if([aCell trackMouse:lastEvent			
-							  inRect:rect					// NSLeftMouseUp
+							  inRect:rect					
 							  ofView:self				
 							  untilMouseUp:YES])			// YES if mouse 
 						done = YES;							// went up in cell
 					break;									
 
-				case NSHighlightModeMatrix:					
+				case NSHighlightModeMatrix:			// Highlight mode is like
-					[aCell setState:1];					
+					[aCell setState:1];				// Track mode except that
+					selectedCell = aCell;			// the cell is lit before
+					selectedRow = row;				// it begins tracking and
+					selectedColumn = column;		// unlit afterwards		
 					[aCell highlight: YES withFrame: rect inView: self];
-					[self setNeedsDisplayInRect:rect];		// Highlight mode
+					[window flushWindow];
-					ASSIGN(selectedCell, aCell);			// is like Track
+															
-					selectedRow = row;						// mode except that
+					if([aCell trackMouse:lastEvent			 
-					selectedColumn = column;				// the cell is lit
+							  inRect:rect					
-															// before it begins
-					if([aCell trackMouse:lastEvent			// tracking and 
-							  inRect:rect					// unlit afterwards
 							  ofView:self				
 							  untilMouseUp:YES])			// YES if mouse 
 						done = YES;							// went up in cell
+
 					[aCell setState:0];					
 					[aCell highlight: NO withFrame: rect inView: self];
-					[self setNeedsDisplayInRect:rect];
+					[window flushWindow];
 					break;									
 
 				case NSRadioModeMatrix:					// Radio mode allows no
 					if (previousCell == aCell)			// more than one cell
 						break;				 			// to be selected
 					
+					if(selectedCell)					
+						{
 						[selectedCell setState:0];		// deselect previously
 						if (!previousCell)				// selected cell
 							previousCellRect = [self cellFrameAtRow:selectedRow 
@@ -1217,15 +1229,14 @@ static MPoint anchor = {0, 0};
 									  inView:self];
 	  					((tMatrix)selectedCells)->matrix[selectedRow]
 														[selectedColumn] = NO;	
-					[self setNeedsDisplayInRect:previousCellRect];
+						}			
-
+					selectedCell = aCell;				// select current cell
-					ASSIGN(selectedCell, aCell);		// select current cell
 					selectedRow = row;					
 					selectedColumn = column;
 					[aCell setState:1];	
 					[aCell highlight:YES withFrame:rect inView:self];
 	  				((tMatrix)selectedCells)->matrix[row][column] = YES;				
-	  				[self setNeedsDisplayInRect:rect];					
+					[window flushWindow];
 	  				break;
 														// List mode allows
 				case NSListModeMatrix: 			 		// multiple cells to be
@@ -1247,7 +1258,7 @@ static MPoint anchor = {0, 0};
 										// selection to the current cell
 	    				if (!(modifiers & NSAlternateKeyMask))
 							{
-							ASSIGN(selectedCell, aCell);
+							selectedCell = aCell;		// select current cell
 							selectedRow = row;
 							selectedColumn = column;
 					
@@ -1256,7 +1267,7 @@ static MPoint anchor = {0, 0};
 										  withFrame:rect 
 										  inView:self];
 							((tMatrix)selectedCells)->matrix[row][column] =YES;
-							[self setNeedsDisplayInRect:rect];
+							[window flushWindow];
 							break;
 							}
 	  					}
@@ -1269,7 +1280,8 @@ static MPoint anchor = {0, 0};
 							  last:MakePoint (selectedColumn, selectedRow)
 							  current:MakePoint (column, row)];
 
-					ASSIGN(selectedCell, aCell);
+					[window flushWindow];
+					selectedCell = aCell;				// select current cell
 					selectedRow = row;
 					selectedColumn = column;
 					break;
@@ -1285,8 +1297,7 @@ static MPoint anchor = {0, 0};
 
 		while (!shouldProceedEvent) 					
 			{											// Get the next event
-      		theEvent = [[NSApplication sharedApplication]
+      		theEvent = [app nextEventMatchingMask:eventMask
-										nextEventMatchingMask:eventMask
 							untilDate:[NSDate distantFuture]
 							inMode:NSEventTrackingRunLoopMode
 							dequeue:YES];
@@ -1294,13 +1305,12 @@ static MPoint anchor = {0, 0};
 				{
 				case NSPeriodic:
 					NSDebugLog(@"NSMatrix: got NSPeriodic event\n");
-					shouldProceedEvent = YES;
+					shouldProceedEvent = YES;			// it's time to cycle
-					break;
+					break;								// thru the loop again
 				case NSLeftMouseUp:
-					done = YES;
+					done = YES;			// Track and Highlight modes do not use
-				case NSLeftMouseDown:
+				case NSLeftMouseDown:	// periodic events so we must break out
-				default:				// if in Track or Highlight modes break
+				default:				// and check if the mouse is in a cell
-										// out and check if mouse is in a cell
 					if ((mode == NSTrackModeMatrix) || 
 							(mode == NSHighlightModeMatrix))
 				  		shouldProceedEvent = YES;	 
@@ -1318,25 +1328,30 @@ static MPoint anchor = {0, 0};
 
   	switch (mode) 									// Finish the selection
 		{								 			// process
-		case NSTrackModeMatrix:
-		case NSHighlightModeMatrix:
-			[selectedCell setState:![selectedCell state]];
 		case NSRadioModeMatrix:	
+			if(selectedCell)			
 				[selectedCell highlight:NO withFrame:rect inView:self];
 		case NSListModeMatrix:						
-			[self setNeedsDisplayInRect:rect];
+			[self setNeedsDisplayInRect:rect];		// not needed by XRAW
+			[window flushWindow];
+		case NSHighlightModeMatrix:
+		case NSTrackModeMatrix:
 			break;
+  		}					
+
+	if(selectedCell)
+		{											// send single click action
+		if(!(selectedCellTarget = [selectedCell target]))
+			{					// selected cell has no target so send single  
+			if (target)			// click action to matrix's (self's) target			
+				[target performSelector:action withObject:self];
 			}					// in Track and Highlight modes the single
-								// click action has already been sent by the  
+		else 					// click action has already been sent by the 
-								// cell to it's target (if it has one)
+			{					// cell to it's target (if it has one)
-	if ((mode != NSTrackModeMatrix) && (mode != NSHighlightModeMatrix) && 
+			if ((mode != NSTrackModeMatrix) && (mode != NSHighlightModeMatrix))
-			(selectedCellTarget = [selectedCell target]))
 				[selectedCellTarget performSelector:[selectedCell action] 
 									withObject:self];
-	else 										// selected cell has no target
+			}
-		{										// so send single click action 
-		if (target)								// to matrix's (self's) target			
-			[target performSelector:action withObject:self];
 		}
 								// click count > 1 indicates a double click					
 	if (target && doubleAction && ([lastEvent clickCount] > 1))				

Source/NSMenu.m

@@ -60,6 +60,11 @@
 - (void)_resizeMenuForCellSize;
 @end
 
+//*****************************************************************************
+//
+// 		NSMenuMatrix 
+//
+//*****************************************************************************
 
 @implementation NSMenuMatrix
 
@@ -229,13 +234,19 @@ static NSFont* menuFont = nil;
 
 - (NSSize)cellSize					{ return cellSize; }
 - (void)setMenu:(NSMenu*)anObject	{ menu = anObject; }
-- (void)setSelectedCell:(id)aCell	{ ASSIGN(selectedCell, aCell); }
+- (void)setSelectedCell:(id)aCell	{ selectedCell = aCell; }
 - (id)selectedCell					{ return selectedCell; }
 - (NSRect)selectedCellRect			{ return selectedCellRect; }
 
 @end /* NSMenuMatrix */
 
 
+//*****************************************************************************
+//
+// 		NSMenu 
+//
+//*****************************************************************************
+
 @implementation NSMenu
 
 // Class variables

Source/NSMenuItem.m

@@ -73,7 +73,7 @@ static BOOL usesUserKeyEquivalents = YES;
 
   [representedObject release];
   if (hasSubmenu)
-    [[self target] release];
+    [target release];
   [super dealloc];
 }
 
@@ -86,7 +86,7 @@ static BOOL usesUserKeyEquivalents = YES;
   copy->hasSubmenu = hasSubmenu;
   if (hasSubmenu) {
     id submenu = [[target copyWithZone:zone] autorelease];
-    [copy setTarget:submenu];
+    copy->target = [submenu retain];
  }
 
   return copy;
@@ -97,7 +97,7 @@ static BOOL usesUserKeyEquivalents = YES;
   hasSubmenu = anObject && [anObject isKindOfClass:[NSMenu class]];
   if (hasSubmenu) {
     [anObject retain];
-    [[self target] release];
+    [target release];
   }
   [super setTarget:anObject];
 }

Source/NSScroller.m

@@ -6,6 +6,8 @@
    Author: Ovidiu Predescu <ovidiu@net-community.com>
    A completely rewritten version of the original source by Scott Christley.
    Date: July 1997
+   Author:  Felipe A. Rodriguez <far@ix.netcom.com>
+   Date: August 1998
    
    This file is part of the GNUstep GUI Library.
 
@@ -209,7 +211,8 @@ static NSButtonCell* knobCell = nil;
 {
 	if (aFloat < 0)
 		_floatValue = 0;
-  else if (aFloat > 1)
+	else 
+		if (aFloat > 1)
 			_floatValue = 1;
 		else
 			_floatValue = aFloat;
@@ -435,18 +438,22 @@ static NSButtonCell* knobCell = nil;
 
 - (void)trackScrollButtons:(NSEvent*)theEvent
 {
-  unsigned int eventMask = NSLeftMouseDownMask | NSLeftMouseUpMask
+NSApplication *theApp = [NSApplication sharedApplication];
-			   | NSLeftMouseDraggedMask | NSMouseMovedMask;
+unsigned int eventMask = NSLeftMouseDownMask | NSLeftMouseUpMask | 
-  NSPoint location;
+							NSLeftMouseDraggedMask | NSMouseMovedMask;
-  NSEventType eventType;
+NSPoint location;
-  BOOL shouldReturn = NO;
+BOOL shouldReturn = NO;
-  id theCell = nil;
+id theCell = nil;
+NSRect rect;
 
   	NSDebugLog (@"trackScrollButtons");
 	do	{
-    NSRect rect = [self rectForPart:_hitPart];
+		location = [self convertPoint:[theEvent locationInWindow]fromView:nil];
+    	_hitPart = [self testPart:location];
+		rect = [self rectForPart:_hitPart];
 
-    switch (_hitPart) {
+		switch (_hitPart) 								// determine which cell
+			{											// was hit
 			case NSScrollerIncrementLine:
 			case NSScrollerIncrementPage:
 				theCell = (_isHorizontal ? rightCell : upCell);
@@ -462,46 +469,45 @@ static NSButtonCell* knobCell = nil;
 				break;
     		}
 
-    if (theCell) {
+		if (theCell) 
-	  [theCell highlight:YES withFrame:rect inView:self];	// highlight cell
+			{											// highlight the cell
-	  [self setNeedsDisplayInRect:rect];		
+	  		[theCell highlight:YES withFrame:rect inView:self];	
+	  		[self setNeedsDisplayInRect:rect];			// not needed by XRAW
+			[window flushWindow];
       		NSDebugLog (@"tracking cell %x", theCell);
-      /* Track the mouse until mouse goes up */
+										// Track the mouse until mouse goes up 
       		shouldReturn = [theCell trackMouse:theEvent
 									inRect:rect
 									ofView:self
-			      untilMouseUp:NO];
+									untilMouseUp:YES];
-
+														// unhighlight the cell 
-      /* Now unhighlight the cell */
 			[theCell highlight:NO withFrame:rect inView:self];
-#if 1
+			[self setNeedsDisplayInRect:rect];			// not needed by XRAW
-      [self setNeedsDisplayInRect:rect];
+			[window flushWindow];
-#else
-      [theCell drawWithFrame:rect inView:self];
-      [self setNeedsDisplayInRect:rect];
-      [[self window] flushWindow];
-#endif
     		}
 
     	if (shouldReturn)
       		break;
 
-    theEvent = [[NSApplication sharedApplication]
+    	theEvent = [theApp nextEventMatchingMask:eventMask
-		 nextEventMatchingMask:eventMask
 						   untilDate:[NSDate distantFuture] 
 						   inMode:NSEventTrackingRunLoopMode
 						   dequeue:YES];
-    eventType = [theEvent type];
+  		} 
-    location = [self convertPoint:[theEvent locationInWindow] fromView:nil];
+	while ([theEvent type] != NSLeftMouseUp);
-    _hitPart = [self testPart:location];
+
-  } while (eventType != NSLeftMouseUp);
   	NSDebugLog (@"return from trackScrollButtons");
 }
 
-- (BOOL)sendAction:(SEL)action to:(id)target
+- (BOOL)sendAction:(SEL)theAction to:(id)theTarget
-{
+{															// send action to
-  [target performSelector:action withObject:self];
+BOOL ret = [super sendAction:theAction to:theTarget];		// the target on
-  return YES;
+															// behalf of cell
+	[self drawKnobSlot];			// lockFocus set in mouseDown method is 
+	[self drawKnob];				// active so we simply redraw the knob and 
+	[window flushWindow];			// slot to reflect the hit scroll button	
+
+	return ret; 										
 }															
 
 - (void)encodeWithCoder:aCoder
@@ -517,15 +523,12 @@ static NSButtonCell* knobCell = nil;
 	NSDebugLog (@"NSScroller drawRect: ((%f, %f), (%f, %f))",
 			rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
 
-  /* Draw the scroller buttons */
+												 // Draw the scroller buttons
 	[self drawArrow:NSScrollerDecrementArrow highlight:NO];	
 	[self drawArrow:NSScrollerIncrementArrow highlight:NO];
 
-  /* Draw the knob slot */
+	[self drawKnobSlot];									// Draw knob slot
-  [self drawKnobSlot];
+	[self drawKnob];										// Draw the knob
-
-  /* Draw the knob */
-  [self drawKnob];
 }
 
 - (void)drawArrow:(NSScrollerArrow)whichButton
@@ -554,8 +557,7 @@ static NSButtonCell* knobCell = nil;
 
 - (void)drawKnob
 {
-  NSRect rect = [self rectForPart:NSScrollerKnob];
+	[knobCell drawWithFrame:[self rectForPart:NSScrollerKnob] inView:self];
-  [knobCell drawWithFrame:rect inView:self];
 }
 
 /* The following methods should be implemented in the backend */

Source/NSText.m

@@ -70,6 +70,11 @@
 //
 // Initialization
 //
+- init
+{
+	return [self initWithFrame:NSZeroRect];
+}
+
 - initWithFrame:(NSRect)frameRect
 {
 	[super initWithFrame:frameRect];
@@ -86,15 +91,17 @@
 	is_ruler_visible = NO;
 	is_field_editor = NO;
 	draws_background = YES;
-	background_color = [NSColor whiteColor];
+	background_color = [[NSColor whiteColor] retain];
-	text_color = [NSColor blackColor];
+	text_color = [[NSColor blackColor] retain];
-	default_font = [NSFont userFontOfSize:12];
+	default_font = [[NSFont userFontOfSize:12] retain];
 
 	return self;
 }
 
 - (void)dealloc 
 {	
+	[default_font release];
+	[text_color release];
 	[background_color release];
 	[plainContent release];
 	[rtfContent release];

Source/NSView.m

@@ -715,6 +715,7 @@ static NSRecursiveLock *gnustep_gui_nsview_lock = nil;
 {										// preliminary implementation FIX ME
 	if(autoresizingMask == NSViewNotSizable)		// view is not resizable
 		return;
+
 	if(autoresizingMask & NSViewWidthSizable)		// width resizable?
 		{
   		frame.size.width = [super_view frame].size.width;
@@ -724,6 +725,7 @@ static NSRecursiveLock *gnustep_gui_nsview_lock = nil;
 		if(autoresizingMask & NSViewMinXMargin)
   			frame.origin.x += [super_view frame].size.width - oldSize.width;
 		}
+
 	if(autoresizingMask & NSViewHeightSizable)		// height resizable?
 		{
   		frame.size.height = [super_view frame].size.height;
@@ -815,7 +817,7 @@ static NSRecursiveLock *gnustep_gui_nsview_lock = nil;
 
 - (void)displayRect:(NSRect)rect
 {
-  int i, count;
+int i, count;
 
 	if (!boundsMatrix || !frameMatrix)
 		NSLog (@"warning: %@ %p has not have the PS matrices setup!",
@@ -828,24 +830,27 @@ static NSRecursiveLock *gnustep_gui_nsview_lock = nil;
 	[window _setNeedsFlush];
 //  [window _view:self needsFlushInRect:rect];
 	[self unlockFocus];
-
   													// Tell subviews to display
-  for (i = 0, count = [sub_views count]; i < count; ++i) {
+	for (i = 0, count = [sub_views count]; i < count; ++i) 
+		{
     	NSView* subview = [sub_views objectAtIndex:i];
     	NSRect subviewFrame = subview->frame;
     	NSRect intersection;
-
+									// If the subview is rotated compute its 
-    /* If the subview is rotated compute its bounding rectangle and use this
+									// bounding rectangle and use this one 
-       one instead of the subview's frame. */
+									// instead of the subview's frame. 
 		if ([subview->frameMatrix isRotated])
-      [subview->frameMatrix boundingRectFor:subviewFrame result:&subviewFrame];
+      		[subview->frameMatrix boundingRectFor:subviewFrame 
+								  result:&subviewFrame];
 
-    /* Determine if the subview's frame intersects "rect"
+									// Determine if the subview's frame 
-       so that we can display the subview. */
+									// intersects "rect" so that we can display 
+									// the subview. 
     	intersection = NSIntersectionRect (rect, subviewFrame);
-    if (intersection.origin.x || intersection.origin.y
+		if (intersection.origin.x || intersection.origin.y || 
-	|| intersection.size.width || intersection.size.height) {
+				intersection.size.width || intersection.size.height) 
-      /* Convert the intersection rectangle to the subview's coordinates */
+			{						// Convert the intersection rectangle to
+									// the subview's coordinates 
       		intersection = [subview convertRect:intersection fromView:self];
       		[subview displayRect:intersection];
     		}
@@ -871,34 +876,34 @@ static NSRecursiveLock *gnustep_gui_nsview_lock = nil;
 }
 
 - (void)_addSubviewForNeedingDisplay:(NSView*)view
-{
+{													// Add view to the list of
-  NSView* currentView;
+NSView* currentView;								// sibling subviews that 
-
+													// need display.
-  /* Add view in the list of sibling subviews that need display. First
-     check if view is not already there. */
 	currentView = _subviewsThatNeedDisplay;		
-  while (currentView) {
+	while (currentView) 							// do nothing if the view 
-    if (currentView == view)
+		{											// is already in self's
+		if (currentView == view)					// list.
 			return;
 		currentView = currentView->_nextSiblingSubviewThatNeedsDisplay;
 		}
+					// view is not in the list of subviews that need display.
+					// Concatenate self's list of subviews that need display to 
+					// the view's list of siblings subviews that need display.
 
-  /* view is not in the list of subviews that need display; add it.
+									// find the last element in the view's
-     To do this concatenate the "view"'s list of siblings to the list of
+	currentView = view;				// list of siblings that need display
-     subviews. Find the last element in the "view"'s list of siblings and
-     assign to its _nextSiblingSubviewThatNeedsDisplay ivar the first element
-     of the subviews that need display list in self.
-   */
-  currentView = view;
 	while (currentView->_nextSiblingSubviewThatNeedsDisplay)
 		currentView = currentView->_nextSiblingSubviewThatNeedsDisplay;
 
-  currentView->_nextSiblingSubviewThatNeedsDisplay = _subviewsThatNeedDisplay;
+									// link the lists by assigning to view's  
+									// _nextSiblingSubviewThatNeedsDisplay ivar 
+									// self's _subviewsThatNeedDisplay ivar. 
+	currentView->_nextSiblingSubviewThatNeedsDisplay =_subviewsThatNeedDisplay;
 	_subviewsThatNeedDisplay = view;
 
-  /* Now add recursively do the same algorithm with self. This way we'll create
+							// Add recursively using the same algorithm with 
-     a subtree of views that need display inside the views hierarchy. */
+	needs_display = YES;	// self. This way we'll create a subtree of views
-  if (super_view)
+	if (super_view)			// that need display inside the views hierarchy.
 		[super_view _addSubviewForNeedingDisplay:self];
 }
 
@@ -935,7 +940,7 @@ static NSRecursiveLock *gnustep_gui_nsview_lock = nil;
 {
   needs_display = flag;
   if (needs_display) {
-//    NSLog (@"NSView setNeedsDisplay:");
+
     invalidatedRectangle = bounds;
     [window _setNeedsDisplay];
 
@@ -946,7 +951,6 @@ static NSRecursiveLock *gnustep_gui_nsview_lock = nil;
 
 - (void)setNeedsDisplayInRect:(NSRect)rect
 {
-//  NSLog (@"NSView setNeedsDisplayInRect:");
   needs_display = YES;
   invalidatedRectangle = NSUnionRect (invalidatedRectangle, rect);
   [window _setNeedsDisplay];

Source/NSWindow.m

@@ -583,18 +583,15 @@ static BOOL _needsFlushWindows = YES;
 {
 }
 
-- (void)setFrame:(NSRect)frameRect
+- (void)setFrame:(NSRect)frameRect display:(BOOL)flag
-	 display:(BOOL)flag
 {
-  NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
+NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
 	
   frame = frameRect;									
-
   														// post notification
   [nc postNotificationName: NSWindowDidResizeNotification object: self];
 
-  // display if requested
+  if (flag) 											// display if requested
-  if (!flag) return;
   	[self display];									
 }
 
@@ -730,7 +727,14 @@ static BOOL _needsFlushWindows = YES;
 
 - (void)update
 {
-  NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
+NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
+
+	if(is_autodisplay && needs_display)					// if autodisplay is
+		{												// enabled
+		[self _collectFlushRectangles];
+		[self displayIfNeeded];
+		[self flushWindowIfNeeded];
+    	}
 
 	[nc postNotificationName: NSWindowDidUpdateNotification object: self];
 }
@@ -1588,10 +1592,12 @@ static BOOL _needsFlushWindows = YES;
 
   windowList = [[NSApplication sharedApplication] windows];
   
-  for (i = 0, count = [windowList count]; i < count; i++) {
+  for (i = 0, count = [windowList count]; i < count; i++) 
+	{
     NSWindow* window = [windowList objectAtIndex:i];
 
-    if (window->needs_display || window->needs_flush) {
+    if (window->needs_display || window->needs_flush) 
+		{
 		[window _collectFlushRectangles];
 		[window displayIfNeeded];
 		[window flushWindowIfNeeded];