wraster library support and alpha/compositing improvements.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@6272 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,17 @@
+2000-03-11  Adam Fedor  <fedor@gnu.org>
+
+	* Headers/gnustep/gui/NSText.h: Add missing methods.
+
+	* Source/NSCachedImageRep.m: Remove ImageCompositing dwrite and
+	centralize in backend (Now use GraphicCompositing to turn on 
+	alpha drawing/compositing).
+
+	* Source/NSSlider.m ([NSSlider -initWithFrame:]): set continuous
+	as specified in OpenStep docs.
+
+	* Source/NSWindow.m (-center): Remove modification already
+	taken care of in backend.
+
 Sat Mar 11 06:32:00 2000  Richard Frith-Macdonald <richard@brainstorm.co.uk>
 
 	* Source/NSStringDrawing.m: Fix error in handling extent of

Headers/gnustep/gui/NSText.h

@@ -304,6 +304,8 @@ typedef enum _NSSelectionAffinity {
 -(void) replaceRange:(NSRange)range 
 withAttributedString:(NSAttributedString*)attrString;
 -(unsigned) textLength;
+- (NSRange) lineRangeForRect: (NSRect) rect;
+- (NSRect) rectForCharacterIndex: (unsigned) index;
 
 //
 // these NSTextView methods are here only informally (GNU extensions)

Source/NSCachedImageRep.m

@@ -41,8 +41,6 @@
 #include <AppKit/NSWindow.h>
 #include <AppKit/PSOperators.h>
 
-static BOOL NSImageCompositing = YES;
-
 @interface GSCacheW : NSWindow
 @end
 
@@ -73,14 +71,6 @@ static BOOL NSImageCompositing = YES;
 
 @implementation NSCachedImageRep
 
-- (void) initialize
-{
-  id obj = [[NSUserDefaults standardUserDefaults]
-  	stringForKey: @"ImageCompositing"];
-  if (obj)
-    NSImageCompositing = [obj boolValue];
-}
-
 // Initializing an NSCachedImageRep 
 - (id) initWithSize: (NSSize)aSize
 	      depth: (NSWindowDepth)aDepth
@@ -154,12 +144,9 @@ static BOOL NSImageCompositing = YES;
 
 - (BOOL)draw
 {
-  if (NSImageCompositing)
-    PScomposite(NSMinX(_rect), NSMinY(_rect), NSWidth(_rect), NSHeight(_rect),
+  PScomposite(NSMinX(_rect), NSMinY(_rect), NSWidth(_rect), NSHeight(_rect),
 	      [_window gState], NSMinX(_rect), NSMinY(_rect),
 	      NSCompositeSourceOver);
-  else
-    NSCopyBits([_window gState], _rect, _rect.origin);
   return YES;
 }
 
@@ -177,12 +164,9 @@ static BOOL NSImageCompositing = YES;
       if ([[ctxt focusView] isFlipped])
 	aPoint.y -= size.height;
     }
-  if (NSImageCompositing)
-    PScomposite(NSMinX(_rect), NSMinY(_rect), NSWidth(_rect), NSHeight(_rect),
+  PScomposite(NSMinX(_rect), NSMinY(_rect), NSWidth(_rect), NSHeight(_rect),
 	      [_window gState], aPoint.x, aPoint.y,
 	      NSCompositeSourceOver);
-  else
-    NSCopyBits([_window gState], _rect, aPoint);
   return NO;
 }
 
@@ -198,12 +182,9 @@ static BOOL NSImageCompositing = YES;
   ctxt = GSCurrentContext();
   if ([[ctxt focusView] isFlipped])
     aRect.origin.y -= NSHeight(aRect);
-  if (NSImageCompositing)
-    PScomposite(NSMinX(_rect), NSMinY(_rect), NSWidth(_rect), NSHeight(_rect),
+  PScomposite(NSMinX(_rect), NSMinY(_rect), NSWidth(_rect), NSHeight(_rect),
 	      [_window gState], NSMinX(aRect), NSMinY(aRect),
 	      NSCompositeSourceOver);
-  else
-    NSCopyBits([_window gState], _rect, aRect.origin);
   return YES;
 }
 

Source/NSSlider.m

@@ -68,6 +68,7 @@ static Class cellClass;
   // set our cell
   [self setCell: theCell];
   [theCell setState: 1];
+  [theCell setContinuous: YES];
   return self;
 }
 

Source/NSWindow.m

@@ -64,17 +64,6 @@
 #include <AppKit/NSGraphics.h>
 #include <AppKit/GSWraps.h>
 
-static float GSTitleBarHeight = 24.0;
-static float GSResizeBarHeight = 11.0;
-/*
-  PJB: This should be the same as in GSMenuBarHeight in NSMenuView 
-       and the actual title bar height currently drawn by WindowMaker. 
-       (We should do this ourselves).
-       I don't know how it's been computed for NSMenu, but I find the 
-       title bar heigh to be 24 pixels.
-*/
-
-
 BOOL GSViewAcceptsDrag(NSView *v, id<NSDraggingInfo> dragInfo);
 
 /*
@@ -613,7 +602,7 @@ static NSMapTable* windowmaps = NULL;
 
   backing_type = bufferingType;
   style_mask = aStyle;
-
+  
   frame = [NSWindow frameRectForContentRect: contentRect styleMask: aStyle];
   minimum_size = NSMakeSize(frame.size.width - contentRect.size.width + 1,
     frame.size.height - contentRect.size.height + 1);
@@ -1186,18 +1175,9 @@ static NSMapTable* windowmaps = NULL;
 {
   NSSize screenSize = [[NSScreen mainScreen] frame].size;
   NSPoint origin = frame.origin;
-  float offset=0.0;
 
-  // center the window within it's screen,
-  // taking into account the title bar and the resize bar heights <PJB>.
-  if((style_mask&NSTitledWindowMask)!=0){
-      offset+=GSTitleBarHeight;
-  }
-  if((style_mask&NSResizableWindowMask)!=0){
-      offset+=GSResizeBarHeight;
-  }
   origin.x = (screenSize.width - frame.size.width) / 2;
-  origin.y = (screenSize.height - offset - frame.size.height) / 2;
+  origin.y = (screenSize.height - frame.size.height) / 2;
   [self setFrameOrigin: origin];
 }