Remove all uses of the fl_gc global variable. Towards a clean driver model.

fl_gc remains usable by the application as a hook into the system.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11189 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 106 insertions, 106 deletions

diff --git a/src/drivers/Quartz/Fl_Quartz_Graphics_Driver_rect.cxx b/src/drivers/Quartz/Fl_Quartz_Graphics_Driver_rect.cxx
index debf15606..e641767d4 100644
--- a/src/drivers/Quartz/Fl_Quartz_Graphics_Driver_rect.cxx
+++ b/src/drivers/Quartz/Fl_Quartz_Graphics_Driver_rect.cxx
@@ -38,162 +38,162 @@ extern float fl_quartz_line_width_;
 // --- line and polygon drawing with integer coordinates
 
 void Fl_Quartz_Graphics_Driver::point(int x, int y) {
-  CGContextFillRect(fl_gc, CGRectMake(x - 0.5, y - 0.5, 1, 1) );
+  CGContextFillRect(gc, CGRectMake(x - 0.5, y - 0.5, 1, 1) );
 }
 
 void Fl_Quartz_Graphics_Driver::rect(int x, int y, int w, int h) {
   if (w<=0 || h<=0) return;
-  if ( (!has_feature(PRINTER)) && fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, true);
+  if ( (!has_feature(PRINTER)) && fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, true);
   CGRect rect = CGRectMake(x, y, w-1, h-1);
-  CGContextStrokeRect(fl_gc, rect);
-  if ( (!has_feature(PRINTER)) && fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, false);
+  CGContextStrokeRect(gc, rect);
+  if ( (!has_feature(PRINTER)) && fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, false);
 }
 
 void Fl_Quartz_Graphics_Driver::rectf(int x, int y, int w, int h) {
   if (w<=0 || h<=0) return;
   CGRect rect = CGRectMake(x - 0.5, y - 0.5, w , h);
-  CGContextFillRect(fl_gc, rect);
+  CGContextFillRect(gc, rect);
 }
 
 void Fl_Quartz_Graphics_Driver::line(int x, int y, int x1, int y1) {
-  if (fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, true);
-  CGContextMoveToPoint(fl_gc, x, y);
-  CGContextAddLineToPoint(fl_gc, x1, y1);
-  CGContextStrokePath(fl_gc);
-  if (fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, false);
+  if (fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, true);
+  CGContextMoveToPoint(gc, x, y);
+  CGContextAddLineToPoint(gc, x1, y1);
+  CGContextStrokePath(gc);
+  if (fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, false);
 }
 
 void Fl_Quartz_Graphics_Driver::line(int x, int y, int x1, int y1, int x2, int y2) {
-  if (fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, true);
-  CGContextMoveToPoint(fl_gc, x, y);
-  CGContextAddLineToPoint(fl_gc, x1, y1);
-  CGContextAddLineToPoint(fl_gc, x2, y2);
-  CGContextStrokePath(fl_gc);
-  if (fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, false);
+  if (fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, true);
+  CGContextMoveToPoint(gc, x, y);
+  CGContextAddLineToPoint(gc, x1, y1);
+  CGContextAddLineToPoint(gc, x2, y2);
+  CGContextStrokePath(gc);
+  if (fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, false);
 }
 
 void Fl_Quartz_Graphics_Driver::xyline(int x, int y, int x1) {
-  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, true);
-  CGContextMoveToPoint(fl_gc, x, y);
-  CGContextAddLineToPoint(fl_gc, x1, y);
-  CGContextStrokePath(fl_gc);
+  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, true);
+  CGContextMoveToPoint(gc, x, y);
+  CGContextAddLineToPoint(gc, x1, y);
+  CGContextStrokePath(gc);
   if (Fl_Display_Device::high_resolution()) {
     /* On retina displays, all xyline() and yxline() functions produce lines that are half-unit
      (or one pixel) too short at both ends. This is corrected by filling at both ends rectangles
      of size one unit by line-width.
      */
-    CGContextFillRect(fl_gc, CGRectMake(x-0.5 , y  - fl_quartz_line_width_/2, 1 , fl_quartz_line_width_));
-    CGContextFillRect(fl_gc, CGRectMake(x1-0.5 , y  - fl_quartz_line_width_/2, 1 , fl_quartz_line_width_));
+    CGContextFillRect(gc, CGRectMake(x-0.5 , y  - fl_quartz_line_width_/2, 1 , fl_quartz_line_width_));
+    CGContextFillRect(gc, CGRectMake(x1-0.5 , y  - fl_quartz_line_width_/2, 1 , fl_quartz_line_width_));
   }
-  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, false);
+  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, false);
 }
 
 void Fl_Quartz_Graphics_Driver::xyline(int x, int y, int x1, int y2) {
-  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, true);
-  CGContextMoveToPoint(fl_gc, x, y);
-  CGContextAddLineToPoint(fl_gc, x1, y);
-  CGContextAddLineToPoint(fl_gc, x1, y2);
-  CGContextStrokePath(fl_gc);
+  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, true);
+  CGContextMoveToPoint(gc, x, y);
+  CGContextAddLineToPoint(gc, x1, y);
+  CGContextAddLineToPoint(gc, x1, y2);
+  CGContextStrokePath(gc);
   if (Fl_Display_Device::high_resolution()) {
-    CGContextFillRect(fl_gc, CGRectMake(x-0.5, y  - fl_quartz_line_width_/2, 1 , fl_quartz_line_width_));
-    CGContextFillRect(fl_gc, CGRectMake(x1  -  fl_quartz_line_width_/2, y2-0.5, fl_quartz_line_width_, 1));
+    CGContextFillRect(gc, CGRectMake(x-0.5, y  - fl_quartz_line_width_/2, 1 , fl_quartz_line_width_));
+    CGContextFillRect(gc, CGRectMake(x1  -  fl_quartz_line_width_/2, y2-0.5, fl_quartz_line_width_, 1));
   }
-  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, false);
+  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, false);
 }
 
 void Fl_Quartz_Graphics_Driver::xyline(int x, int y, int x1, int y2, int x3) {
-  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, true);
-  CGContextMoveToPoint(fl_gc, x, y);
-  CGContextAddLineToPoint(fl_gc, x1, y);
-  CGContextAddLineToPoint(fl_gc, x1, y2);
-  CGContextAddLineToPoint(fl_gc, x3, y2);
-  CGContextStrokePath(fl_gc);
+  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, true);
+  CGContextMoveToPoint(gc, x, y);
+  CGContextAddLineToPoint(gc, x1, y);
+  CGContextAddLineToPoint(gc, x1, y2);
+  CGContextAddLineToPoint(gc, x3, y2);
+  CGContextStrokePath(gc);
   if (Fl_Display_Device::high_resolution()) {
-    CGContextFillRect(fl_gc, CGRectMake(x-0.5, y  - fl_quartz_line_width_/2, 1 , fl_quartz_line_width_));
-    CGContextFillRect(fl_gc, CGRectMake(x3-0.5, y2  - fl_quartz_line_width_/2, 1 , fl_quartz_line_width_));
+    CGContextFillRect(gc, CGRectMake(x-0.5, y  - fl_quartz_line_width_/2, 1 , fl_quartz_line_width_));
+    CGContextFillRect(gc, CGRectMake(x3-0.5, y2  - fl_quartz_line_width_/2, 1 , fl_quartz_line_width_));
   }
-  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, false);
+  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, false);
 }
 
 void Fl_Quartz_Graphics_Driver::yxline(int x, int y, int y1) {
-  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, true);
-  CGContextMoveToPoint(fl_gc, x, y);
-  CGContextAddLineToPoint(fl_gc, x, y1);
-  CGContextStrokePath(fl_gc);
+  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, true);
+  CGContextMoveToPoint(gc, x, y);
+  CGContextAddLineToPoint(gc, x, y1);
+  CGContextStrokePath(gc);
   if (Fl_Display_Device::high_resolution()) {
-    CGContextFillRect(fl_gc, CGRectMake(x  -  fl_quartz_line_width_/2, y-0.5, fl_quartz_line_width_, 1));
-    CGContextFillRect(fl_gc, CGRectMake(x  -  fl_quartz_line_width_/2, y1-0.5, fl_quartz_line_width_, 1));
+    CGContextFillRect(gc, CGRectMake(x  -  fl_quartz_line_width_/2, y-0.5, fl_quartz_line_width_, 1));
+    CGContextFillRect(gc, CGRectMake(x  -  fl_quartz_line_width_/2, y1-0.5, fl_quartz_line_width_, 1));
   }
-  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, false);
+  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, false);
 }
 
 void Fl_Quartz_Graphics_Driver::yxline(int x, int y, int y1, int x2) {
-  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, true);
-  CGContextMoveToPoint(fl_gc, x, y);
-  CGContextAddLineToPoint(fl_gc, x, y1);
-  CGContextAddLineToPoint(fl_gc, x2, y1);
-  CGContextStrokePath(fl_gc);
+  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, true);
+  CGContextMoveToPoint(gc, x, y);
+  CGContextAddLineToPoint(gc, x, y1);
+  CGContextAddLineToPoint(gc, x2, y1);
+  CGContextStrokePath(gc);
   if (Fl_Display_Device::high_resolution()) {
-    CGContextFillRect(fl_gc, CGRectMake(x  -  fl_quartz_line_width_/2, y-0.5, fl_quartz_line_width_, 1));
-    CGContextFillRect(fl_gc, CGRectMake(x2-0.5, y1  - fl_quartz_line_width_/2, 1 , fl_quartz_line_width_));
+    CGContextFillRect(gc, CGRectMake(x  -  fl_quartz_line_width_/2, y-0.5, fl_quartz_line_width_, 1));
+    CGContextFillRect(gc, CGRectMake(x2-0.5, y1  - fl_quartz_line_width_/2, 1 , fl_quartz_line_width_));
   }
-  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, false);
+  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, false);
 }
 
 void Fl_Quartz_Graphics_Driver::yxline(int x, int y, int y1, int x2, int y3) {
-  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, true);
-  CGContextMoveToPoint(fl_gc, x, y);
-  CGContextAddLineToPoint(fl_gc, x, y1);
-  CGContextAddLineToPoint(fl_gc, x2, y1);
-  CGContextAddLineToPoint(fl_gc, x2, y3);
-  CGContextStrokePath(fl_gc);
+  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, true);
+  CGContextMoveToPoint(gc, x, y);
+  CGContextAddLineToPoint(gc, x, y1);
+  CGContextAddLineToPoint(gc, x2, y1);
+  CGContextAddLineToPoint(gc, x2, y3);
+  CGContextStrokePath(gc);
   if (Fl_Display_Device::high_resolution()) {
-    CGContextFillRect(fl_gc, CGRectMake(x  -  fl_quartz_line_width_/2, y-0.5, fl_quartz_line_width_, 1));
-    CGContextFillRect(fl_gc, CGRectMake(x2  -  fl_quartz_line_width_/2, y3-0.5, fl_quartz_line_width_, 1));
+    CGContextFillRect(gc, CGRectMake(x  -  fl_quartz_line_width_/2, y-0.5, fl_quartz_line_width_, 1));
+    CGContextFillRect(gc, CGRectMake(x2  -  fl_quartz_line_width_/2, y3-0.5, fl_quartz_line_width_, 1));
   }
-  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, false);
+  if (has_feature(PRINTER) || fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(gc, false);
 }
 
 void Fl_Quartz_Graphics_Driver::loop(int x, int y, int x1, int y1, int x2, int y2) {
-  CGContextSetShouldAntialias(fl_gc, true);
-  CGContextMoveToPoint(fl_gc, x, y);
-  CGContextAddLineToPoint(fl_gc, x1, y1);
-  CGContextAddLineToPoint(fl_gc, x2, y2);
-  CGContextClosePath(fl_gc);
-  CGContextStrokePath(fl_gc);
-  CGContextSetShouldAntialias(fl_gc, false);
+  CGContextSetShouldAntialias(gc, true);
+  CGContextMoveToPoint(gc, x, y);
+  CGContextAddLineToPoint(gc, x1, y1);
+  CGContextAddLineToPoint(gc, x2, y2);
+  CGContextClosePath(gc);
+  CGContextStrokePath(gc);
+  CGContextSetShouldAntialias(gc, false);
 }
 
 void Fl_Quartz_Graphics_Driver::loop(int x, int y, int x1, int y1, int x2, int y2, int x3, int y3) {
-  CGContextSetShouldAntialias(fl_gc, true);
-  CGContextMoveToPoint(fl_gc, x, y);
-  CGContextAddLineToPoint(fl_gc, x1, y1);
-  CGContextAddLineToPoint(fl_gc, x2, y2);
-  CGContextAddLineToPoint(fl_gc, x3, y3);
-  CGContextClosePath(fl_gc);
-  CGContextStrokePath(fl_gc);
-  CGContextSetShouldAntialias(fl_gc, false);
+  CGContextSetShouldAntialias(gc, true);
+  CGContextMoveToPoint(gc, x, y);
+  CGContextAddLineToPoint(gc, x1, y1);
+  CGContextAddLineToPoint(gc, x2, y2);
+  CGContextAddLineToPoint(gc, x3, y3);
+  CGContextClosePath(gc);
+  CGContextStrokePath(gc);
+  CGContextSetShouldAntialias(gc, false);
 }
 
 void Fl_Quartz_Graphics_Driver::polygon(int x, int y, int x1, int y1, int x2, int y2) {
-  CGContextSetShouldAntialias(fl_gc, true);
-  CGContextMoveToPoint(fl_gc, x, y);
-  CGContextAddLineToPoint(fl_gc, x1, y1);
-  CGContextAddLineToPoint(fl_gc, x2, y2);
-  CGContextClosePath(fl_gc);
-  CGContextFillPath(fl_gc);
-  CGContextSetShouldAntialias(fl_gc, false);
+  CGContextSetShouldAntialias(gc, true);
+  CGContextMoveToPoint(gc, x, y);
+  CGContextAddLineToPoint(gc, x1, y1);
+  CGContextAddLineToPoint(gc, x2, y2);
+  CGContextClosePath(gc);
+  CGContextFillPath(gc);
+  CGContextSetShouldAntialias(gc, false);
 }
 
 void Fl_Quartz_Graphics_Driver::polygon(int x, int y, int x1, int y1, int x2, int y2, int x3, int y3) {
-  CGContextSetShouldAntialias(fl_gc, true);
-  CGContextMoveToPoint(fl_gc, x, y);
-  CGContextAddLineToPoint(fl_gc, x1, y1);
-  CGContextAddLineToPoint(fl_gc, x2, y2);
-  CGContextAddLineToPoint(fl_gc, x3, y3);
-  CGContextClosePath(fl_gc);
-  CGContextFillPath(fl_gc);
-  CGContextSetShouldAntialias(fl_gc, false);
+  CGContextSetShouldAntialias(gc, true);
+  CGContextMoveToPoint(gc, x, y);
+  CGContextAddLineToPoint(gc, x1, y1);
+  CGContextAddLineToPoint(gc, x2, y2);
+  CGContextAddLineToPoint(gc, x3, y3);
+  CGContextClosePath(gc);
+  CGContextFillPath(gc);
+  CGContextSetShouldAntialias(gc, false);
 }
 
 // --- clipping
@@ -265,34 +265,34 @@ void Fl_Quartz_Graphics_Driver::pop_clip() {
   restore_clip();
 }
 
-// helper function to manage the current CGContext fl_gc
-extern void fl_quartz_restore_line_style_();
+// helper function to manage the current CGContext gc
+extern void fl_quartz_restore_line_style_(CGContextRef gc);
 
 void Fl_Quartz_Graphics_Driver::restore_clip() {
   fl_clip_state_number++;
   Fl_Region r = rstack[rstackptr];
-  if ( fl_window || fl_gc ) { // clipping for a true window or an offscreen buffer
-    if (fl_gc) {
-      CGContextRestoreGState(fl_gc);
-      CGContextSaveGState(fl_gc);
+  if ( fl_window || gc ) { // clipping for a true window or an offscreen buffer
+    if (gc) {
+      CGContextRestoreGState(gc);
+      CGContextSaveGState(gc);
     }
     // FLTK has only one global graphics state.
     // This copies the FLTK state into the current Quartz context
     if ( ! fl_window ) { // a bitmap context
-      CGFloat hgt = CGBitmapContextGetHeight(fl_gc);
-      CGAffineTransform at = CGContextGetCTM(fl_gc);
+      CGFloat hgt = CGBitmapContextGetHeight(gc);
+      CGAffineTransform at = CGContextGetCTM(gc);
       CGFloat offset = 0.5;
       if (at.a != 1 && at.a == at.d && at.b == 0 && at.c == 0) { // proportional scaling, no rotation
         hgt /= at.a;
         offset /= at.a;
       }
-      CGContextTranslateCTM(fl_gc, offset, hgt-offset);
-      CGContextScaleCTM(fl_gc, 1.0f, -1.0f); // now 0,0 is top-left point of the context
+      CGContextTranslateCTM(gc, offset, hgt-offset);
+      CGContextScaleCTM(gc, 1.0f, -1.0f); // now 0,0 is top-left point of the context
     }
     color(color());
-    fl_quartz_restore_line_style_();    
+    fl_quartz_restore_line_style_(gc);
     if (r) { //apply program clip
-      CGContextClipToRects(fl_gc, r->rects, r->count);
+      CGContextClipToRects(gc, r->rects, r->count);
     }
   }
 }