Backend part of graphic context rewrite.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@24965 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,16 @@
+2007-04-04 Fred Kiefer <FredKiefer@gmx.de>
+
+	* Headers/gsc/GSContext.h: Remove ivar gtable.
+	* Source/gsc/GSContext.m: Changed to use a gtable object
+	shared between all contexts.
+	* Headers/cairo/CairoGState.h:
+	Declare new methods for save and restore.
+	* Source/cairo/CairoContext.m (-DPSgrestore, -DPSgsave): Use these methods.
+	* Source/cairo/CairoGState.m (-DPSgrestore, -DPSgsave): Implement
+	these methods.
+	* Source/cairo/CairoGState.m (-compositeGState:...fraction:):
+	Another try on conversion of the coordinates.
+	
 2007-03-30 Fred Kiefer <FredKiefer@gmx.de>
 
 	* header/xlib/XGGeometry.h: Replace calls to the now deprecated

Headers/cairo/CairoGState.h

@@ -38,6 +38,8 @@
 
 - (void) GSCurrentDevice: (void **)device: (int *)x : (int *)y;
 - (void) GSSetDevice: (void *)device : (int)x : (int)y;
+- (void) DPSgsave;
+- (void) DPSgrestore;
 
 @end
 

Headers/gsc/GSContext.h

@@ -40,7 +40,6 @@
   void			*opstack;
   void			*gstack;
   GSGState		*gstate;
-  NSMapTable            *gtable;
 }
 
 - (GSGState *) currentGState;

Source/cairo/CairoContext.m

@@ -113,4 +113,14 @@
   [CGSTATE GSSetDevice: device : x : y];
 }
 
+- (void) DPSgrestore
+{
+  [CGSTATE DPSgrestore];
+}
+
+- (void) DPSgsave
+{
+  [CGSTATE DPSgsave];
+}
+
 @end

Source/cairo/CairoGState.m

@@ -169,6 +169,22 @@
 				  theOffset.y - size.height);
 }
 
+- (void) DPSgrestore
+{
+  if (_ct)
+    {
+      cairo_restore(_ct);
+    }
+}
+
+- (void) DPSgsave
+{
+  if (_ct)
+    {
+      cairo_save(_ct);
+    }
+}
+
 /*
  * Color operations
  */
@@ -967,15 +983,21 @@ _set_op(cairo_t *ct, NSCompositingOperation op)
 */
     }
 
-/*
-  With this bit of code enable scrolling works correctly, but images in cells get displayed wrongly.
+  // Undo flipping in gui
   if (viewIsFlipped)
     {
-      aPoint.y += NSHeight(aRect);
+      aPoint.y -= NSHeight(aRect);
     }
-*/
+  {
+      NSRect newRect;
+      
+      newRect.origin = aPoint;
+      newRect.size = aRect.size;
+      [ctm boundingRectFor: newRect result: &newRect];
+      aPoint = newRect.origin;
+  }
+  //aPoint = [ctm transformPoint: aPoint];
   [source->ctm boundingRectFor: aRect result: &aRect];
-  aPoint = [ctm transformPoint: aPoint];
 
   x = aPoint.x;
   y = aPoint.y;

Source/gsc/GSContext.m

@@ -98,6 +98,7 @@
 
 /* Globally unique gstate number */
 static unsigned int unique_index = 0;
+static NSMapTable *gtable;
 
 @interface GSContext (PrivateOps)
 - (void)DPSdefineuserobject;
@@ -112,6 +113,7 @@ static unsigned int unique_index = 0;
 - (void)DPSpop;
 @end
 
+
 /**
    <unit>
    <heading>GSContext</heading>
@@ -128,6 +130,28 @@ static unsigned int unique_index = 0;
    </unit> */
 @implementation GSContext 
 
++ (void) initialize
+{
+  gtable = NSCreateMapTable(NSIntMapKeyCallBacks,
+                                 NSObjectMapValueCallBacks, 20);
+}
+
++ (void) insertObject: (id)obj forKey: (int)index
+{
+  NSMapInsert(gtable, (void *)(uintptr_t)index, obj);
+}
+
+
++ (id) getObjectForKey: (int)index
+{
+  return NSMapGet(gtable, (void *)(uintptr_t)index);
+}
+
++ (void) removeObjectForKey: (int)index
+{
+  NSMapRemove(gtable, (void *)(uintptr_t)index);
+}
+
 - (id) initWithContextInfo: (NSDictionary *)info
 {
   NSString *contextType;
@@ -152,9 +176,6 @@ static unsigned int unique_index = 0;
   GSIArrayInitWithZoneAndCapacity((GSIArray)opstack, z, 2);
   gstack =  NSZoneMalloc(z, sizeof(GSIArray_t));
   GSIArrayInitWithZoneAndCapacity((GSIArray)gstack, z, 2);
-  gtable = NSCreateMapTable(NSIntMapKeyCallBacks,
-                                 NSObjectMapValueCallBacks, 20);
-
   [super initWithContextInfo: info];
 
   return self;
@@ -170,7 +191,6 @@ static unsigned int unique_index = 0;
   NSZoneFree([self zone], opstack);
   GSIArrayEmpty((GSIArray)gstack);
   NSZoneFree([self zone], gstack);
-  NSFreeMapTable(gtable);
   DESTROY(gstate);
   [super dealloc];
 }
@@ -419,8 +439,8 @@ static unsigned int unique_index = 0;
       DPS_ERROR(DPSundefined, @"No gstate");
       return 0;
     }
-  NSMapInsert(gtable,
-    (void *)(uintptr_t)++unique_index, AUTORELEASE([gstate copy]));
+	[isa insertObject: AUTORELEASE([gstate copy]) forKey: ++unique_index];
+
   return unique_index;
 }
 
@@ -433,7 +453,8 @@ static unsigned int unique_index = 0;
 {
   if (gst <= 0)
     return;
-  NSMapInsert(gtable, (void *)(uintptr_t)gst, AUTORELEASE([gstate copy]));
+
+	[isa insertObject: AUTORELEASE([gstate copy]) forKey: gst];
 }
 
 /* ----------------------------------------------------------------------- */
@@ -865,27 +886,29 @@ static unsigned int unique_index = 0;
   if (n < 0)
     DPS_ERROR(DPSinvalidparam, @"Invalid userobject index");
   else 
-    NSMapInsert(gtable, (void *)(uintptr_t)n, obj);
+		[isa insertObject: obj forKey: n];
 }
 
 - (void)DPSexecuserobject: (int)index
 {
-  if (index < 0 || NSMapGet(gtable, (void *)(uintptr_t)index) == nil)
+  id obj;
+
+  if (index < 0 || (obj = [isa getObjectForKey: index]) == nil)
     {
       DPS_ERROR(DPSinvalidparam, @"Invalid userobject index");
       return;
     }
-  ctxt_push((id)NSMapGet(gtable, (void *)(uintptr_t)index), opstack);
+  ctxt_push(obj, opstack);
 }
 
 - (void)DPSundefineuserobject: (int)index
 {
-  if (index < 0 || NSMapGet(gtable, (void *)(uintptr_t)index) == nil)
+  if (index < 0 || [isa getObjectForKey: index] == nil)
     {
       DPS_ERROR(DPSinvalidparam, @"Invalid gstate index");
       return;
     }
-  NSMapRemove(gtable, (void *)(uintptr_t)index);
+  [isa removeObjectForKey: index];
 }
 
 - (void)DPSclear