virtualized some Region calls.

There is a deeper issue here: regions should be handled by the graphics driver that is associated with the Fl_Window of this widget... .

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11643 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/Fl_Graphics_Driver.H

@@ -114,6 +114,7 @@ protected:
 public:
   Fl_Graphics_Driver();
   virtual ~Fl_Graphics_Driver() {}
+  static Fl_Graphics_Driver &default_driver();
   virtual char can_do_alpha_blending() { return 0; }
   // --- implementation is in src/fl_rect.cxx which includes src/drivers/xxx/Fl_xxx_Graphics_Driver_rect.cxx
   virtual void point(int x, int y) = 0;
@@ -245,9 +246,9 @@ public:
   virtual void set_spot(int font, int size, int X, int Y, int W, int H, Fl_Window *win);
   virtual void reset_spot();
   // each platform implements these 3 functions its own way
-  static void add_rectangle_to_region(Fl_Region r, int x, int y, int w, int h);
-  static Fl_Region XRectangleRegion(int x, int y, int w, int h);
-  static void XDestroyRegion(Fl_Region r);
+  virtual void add_rectangle_to_region(Fl_Region r, int x, int y, int w, int h);
+  virtual Fl_Region XRectangleRegion(int x, int y, int w, int h);
+  virtual void XDestroyRegion(Fl_Region r);
 
 protected:
   // --- implementation is in src/fl_vertex.cxx which includes src/cfg_gfx/xxx_rect.cxx

src/Fl.cxx

@@ -686,7 +686,10 @@ void Fl::flush() {
       if (!wi->visible_r()) continue;
       if (wi->damage()) {i->flush(); wi->clear_damage();}
       // destroy damage regions for windows that don't use them:
-      if (i->region) {Fl_Graphics_Driver::XDestroyRegion(i->region); i->region = 0;}
+      if (i->region) {
+        fl_graphics_driver->XDestroyRegion(i->region);
+        i->region = 0;
+      }
     }
   }
   screen_driver()->flush();
@@ -1491,7 +1494,10 @@ void Fl_Widget::damage(uchar fl) {
     // damage entire window by deleting the region:
     Fl_X* i = Fl_X::i((Fl_Window*)this);
     if (!i) return; // window not mapped, so ignore it
-    if (i->region) {Fl_Graphics_Driver::XDestroyRegion(i->region); i->region = 0;}
+    if (i->region) {
+      fl_graphics_driver->XDestroyRegion(i->region);
+      i->region = 0;
+    }
     damage_ |= fl;
     Fl::damage(FL_DAMAGE_CHILD);
   }
@@ -1525,13 +1531,13 @@ void Fl_Widget::damage(uchar fl, int X, int Y, int W, int H) {
   if (wi->damage()) {
     // if we already have damage we must merge with existing region:
     if (i->region) {
-      Fl_Graphics_Driver::add_rectangle_to_region(i->region, X, Y, W, H);
+      fl_graphics_driver->add_rectangle_to_region(i->region, X, Y, W, H);
     }
     wi->damage_ |= fl;
   } else {
     // create a new region:
-    if (i->region) Fl_Graphics_Driver::XDestroyRegion(i->region);
-    i->region = Fl_Graphics_Driver::XRectangleRegion(X,Y,W,H);
+    if (i->region) fl_graphics_driver->XDestroyRegion(i->region);
+    i->region = fl_graphics_driver->XRectangleRegion(X,Y,W,H);
     wi->damage_ = fl;
   }
   Fl::damage(FL_DAMAGE_CHILD);

src/Fl_Graphics_Driver.cxx

@@ -37,6 +37,18 @@ Fl_Graphics_Driver::Fl_Graphics_Driver() {
   font_descriptor_ = NULL;
 };
 
+
+Fl_Graphics_Driver &Fl_Graphics_Driver::default_driver()
+{
+  static Fl_Graphics_Driver *pMainDriver = 0L;
+  if (!pMainDriver) {
+    pMainDriver = Fl_Display_Device::display_device()->driver();
+  }
+  return *pMainDriver;
+}
+
+
+
 void Fl_Graphics_Driver::text_extents(const char*t, int n, int& dx, int& dy, int& w, int& h)
 {
   w = (int)width(t, n);
@@ -100,6 +112,25 @@ void Fl_Graphics_Driver::free_color(Fl_Color i, int overlay)
 }
 
 
+void Fl_Graphics_Driver::add_rectangle_to_region(Fl_Region r, int x, int y, int w, int h)
+{
+  // nothing to do, reimplement in driver if needed
+}
+
+
+Fl_Region Fl_Graphics_Driver::XRectangleRegion(int x, int y, int w, int h)
+{
+  // nothing to do, reimplement in driver if needed
+  return 0;
+}
+
+
+void Fl_Graphics_Driver::XDestroyRegion(Fl_Region r)
+{
+  // nothing to do, reimplement in driver if needed
+}
+
+
 //
 // End of "$Id$".
 //

src/Fl_cocoa.mm

@@ -1936,7 +1936,7 @@ static void handleUpdateEvent( Fl_Window *window )
   i->wait_for_expose = 0;
 
   if ( i->region ) {
-    Fl_Graphics_Driver::XDestroyRegion(i->region);
+    Fl_Graphics_Driver::default_driver().XDestroyRegion(i->region);
     i->region = 0;
   }
   window->clear_damage(FL_DAMAGE_ALL);

src/drivers/Cocoa/Fl_Cocoa_Window_Driver.cxx

@@ -239,7 +239,7 @@ void Fl_Cocoa_Window_Driver::hide() {
   q_release_context(this);
   if ( ip->xid == fl_window )
     fl_window = 0;
-  if (ip->region) Fl_Graphics_Driver::XDestroyRegion(ip->region);
+  if (ip->region) Fl_Graphics_Driver::default_driver().XDestroyRegion(ip->region);
   ip->destroy();
   delete ip;
 }

src/drivers/GDI/Fl_GDI_Graphics_Driver.H

@@ -78,6 +78,9 @@ public:
   void copy_offscreen_with_alpha(int x,int y,int w,int h,HBITMAP bitmap,int srcx,int srcy);
 #endif
   void copy_offscreen(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy);
+  void add_rectangle_to_region(Fl_Region r, int x, int y, int w, int h);
+  Fl_Region XRectangleRegion(int x, int y, int w, int h);
+  void XDestroyRegion(Fl_Region r);
 protected:
   void transformed_vertex0(int x, int y);
   void fixloop();

src/drivers/GDI/Fl_GDI_Graphics_Driver.cxx

@@ -144,7 +144,7 @@ void Fl_Translated_GDI_Graphics_Driver::untranslate_all() {
   SetWindowOrgEx((HDC)gc(), origins[depth].x, origins[depth].y, NULL);
 }
 
-void Fl_Graphics_Driver::add_rectangle_to_region(Fl_Region r, int X, int Y, int W, int H) {
+void Fl_GDI_Graphics_Driver::add_rectangle_to_region(Fl_Region r, int X, int Y, int W, int H) {
   Fl_Region R = XRectangleRegion(X, Y, W, H);
   CombineRgn(r, r, R, RGN_OR);
   XDestroyRegion(R);
@@ -166,7 +166,7 @@ void Fl_GDI_Graphics_Driver::fixloop() {  // remove equal points from closed pat
   while (n>2 && p[n-1].x == p[0].x && p[n-1].y == p[0].y) n--;
 }
 
-Fl_Region Fl_Graphics_Driver::XRectangleRegion(int x, int y, int w, int h) {
+Fl_Region Fl_GDI_Graphics_Driver::XRectangleRegion(int x, int y, int w, int h) {
   if (Fl_Surface_Device::surface() == Fl_Display_Device::display_device()) return CreateRectRgn(x,y,x+w,y+h);
   // because rotation may apply, the rectangle becomes a polygon in device coords
   POINT pt[4] = { {x, y}, {x + w, y}, {x + w, y + h}, {x, y + h} };
@@ -174,16 +174,16 @@ Fl_Region Fl_Graphics_Driver::XRectangleRegion(int x, int y, int w, int h) {
   return CreatePolygonRgn(pt, 4, ALTERNATE);
 }
 
-void Fl_Graphics_Driver::XDestroyRegion(Fl_Region r) {
+void Fl_GDI_Graphics_Driver::XDestroyRegion(Fl_Region r) {
   DeleteObject(r);
 }
 
 
-void Fl_Graphics_Driver::reset_spot()
+void Fl_GDI_Graphics_Driver::reset_spot()
 {
 }
 
-void Fl_Graphics_Driver::set_spot(int font, int size, int X, int Y, int W, int H, Fl_Window *win)
+void Fl_GDI_Graphics_Driver::set_spot(int font, int size, int X, int Y, int W, int H, Fl_Window *win)
 {
   if (!win) return;
   Fl_Window* tw = win;

src/drivers/PicoSDL/Fl_PicoSDL_Graphics_Driver.cxx

@@ -32,12 +32,6 @@
 extern Window fl_window;
 
 
-void Fl_Graphics_Driver::XDestroyRegion(void*) { }
-//void Fl_Graphics_Driver::clip_region(void*) { }
-Fl_Region Fl_Graphics_Driver::XRectangleRegion(int, int, int, int) { }
-void Fl_Graphics_Driver::add_rectangle_to_region(void*, int, int, int, int) { }
-
-
 /*
  * By linking this module, the following static method will instantiate the
  * PicoSDL Graphics driver as the main display driver.

src/drivers/Quartz/Fl_Quartz_Graphics_Driver.H

@@ -64,6 +64,9 @@ public:
   void copy_offscreen(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy);
   void draw_CGImage(CGImageRef cgimg, int x, int y, int w, int h, int srcx, int srcy, int sw, int sh);
   static CGRect fl_cgrectmake_cocoa(int x, int y, int w, int h);
+  void add_rectangle_to_region(Fl_Region r, int x, int y, int w, int h);
+  Fl_Region XRectangleRegion(int x, int y, int w, int h);
+  void XDestroyRegion(Fl_Region r);
 protected:
   void transformed_vertex0(float x, float y);
   void fixloop();

src/drivers/Quartz/Fl_Quartz_Graphics_Driver.cxx

@@ -76,7 +76,7 @@ CGRect Fl_Quartz_Graphics_Driver::fl_cgrectmake_cocoa(int x, int y, int w, int h
   return CGRectMake(x - 0.5, y - 0.5, w, h);
 }
 
-void Fl_Graphics_Driver::add_rectangle_to_region(Fl_Region r, int X, int Y, int W, int H) {
+void Fl_Quartz_Graphics_Driver::add_rectangle_to_region(Fl_Region r, int X, int Y, int W, int H) {
   CGRect arg = Fl_Quartz_Graphics_Driver::fl_cgrectmake_cocoa(X, Y, W, H);
   int j; // don't add a rectangle totally inside the Fl_Region
   for(j = 0; j < r->count; j++) {
@@ -88,7 +88,7 @@ void Fl_Graphics_Driver::add_rectangle_to_region(Fl_Region r, int X, int Y, int
   }
 }
 
-Fl_Region Fl_Graphics_Driver::XRectangleRegion(int x, int y, int w, int h) {
+Fl_Region Fl_Quartz_Graphics_Driver::XRectangleRegion(int x, int y, int w, int h) {
   Fl_Region R = (Fl_Region)malloc(sizeof(*R));
   R->count = 1;
   R->rects = (CGRect *)malloc(sizeof(CGRect));
@@ -96,7 +96,7 @@ Fl_Region Fl_Graphics_Driver::XRectangleRegion(int x, int y, int w, int h) {
   return R;
 }
 
-void Fl_Graphics_Driver::XDestroyRegion(Fl_Region r) {
+void Fl_Quartz_Graphics_Driver::XDestroyRegion(Fl_Region r) {
   if(r) {
     free(r->rects);
     free(r);

src/drivers/Quartz/Fl_Quartz_Graphics_Driver_rect.cxx

@@ -202,7 +202,7 @@ void Fl_Quartz_Graphics_Driver::polygon(int x, int y, int x1, int y1, int x2, in
 // intersects current and x,y,w,h rectangle and returns result as a new Fl_Region
 static Fl_Region intersect_region_and_rect(Fl_Region current, int x,int y,int w, int h)
 {
-  if (current == NULL) return Fl_Graphics_Driver::XRectangleRegion(x,y,w,h);
+  if (current == NULL) return Fl_Graphics_Driver::default_driver().XRectangleRegion(x,y,w,h);
   CGRect r = Fl_Quartz_Graphics_Driver::fl_cgrectmake_cocoa(x, y, w, h);
   Fl_Region outr = (Fl_Region)malloc(sizeof(*outr));
   outr->count = current->count;
@@ -217,8 +217,8 @@ static Fl_Region intersect_region_and_rect(Fl_Region current, int x,int y,int w,
     outr->rects = (CGRect*)realloc(outr->rects, outr->count * sizeof(CGRect));
   }
   else {
-    Fl_Graphics_Driver::XDestroyRegion(outr);
-    outr = Fl_Graphics_Driver::XRectangleRegion(0,0,0,0);
+    Fl_Graphics_Driver::default_driver().XDestroyRegion(outr);
+    outr = Fl_Graphics_Driver::default_driver().XRectangleRegion(0,0,0,0);
   }
   return outr;
 }

src/drivers/Xlib/Fl_Xlib_Graphics_Driver.H

@@ -79,6 +79,9 @@ public:
 #if ! defined(FL_DOXYGEN)
   void copy_offscreen_with_alpha(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy);
 #endif
+  void add_rectangle_to_region(Fl_Region r, int x, int y, int w, int h);
+  Fl_Region XRectangleRegion(int x, int y, int w, int h);
+  void XDestroyRegion(Fl_Region r);
 protected:
   void transformed_vertex0(short x, short y);
   void fixloop();

src/drivers/Xlib/Fl_Xlib_Graphics_Driver.cxx

@@ -96,7 +96,7 @@ void Fl_Xlib_Graphics_Driver::copy_offscreen_with_alpha(int x, int y, int w, int
 #endif
 
 
-void Fl_Graphics_Driver::add_rectangle_to_region(Fl_Region r, int X, int Y, int W, int H) {
+void Fl_Xlib_Graphics_Driver::add_rectangle_to_region(Fl_Region r, int X, int Y, int W, int H) {
   XRectangle R;
   R.x = X; R.y = Y; R.width = W; R.height = H;
   XUnionRectWithRegion(&R, r, r);

src/drivers/Xlib/Fl_Xlib_Graphics_Driver_rect.cxx

@@ -150,7 +150,7 @@ static int clip_x (int x) {
 
 // Missing X call: (is this the fastest way to init a 1-rectangle region?)
 // MSWindows equivalent exists, implemented inline in win32.H
-Fl_Region Fl_Graphics_Driver::XRectangleRegion(int x, int y, int w, int h) {
+Fl_Region Fl_Xlib_Graphics_Driver::XRectangleRegion(int x, int y, int w, int h) {
   XRectangle R;
   clip_to_short(x, y, w, h);
   R.x = x; R.y = y; R.width = w; R.height = h;
@@ -159,7 +159,7 @@ Fl_Region Fl_Graphics_Driver::XRectangleRegion(int x, int y, int w, int h) {
   return r;
 }
 
-void Fl_Graphics_Driver::XDestroyRegion(Fl_Region r) {
+void Fl_Xlib_Graphics_Driver::XDestroyRegion(Fl_Region r) {
   ::XDestroyRegion(r);
 }
 

src/fl_color.cxx

@@ -69,13 +69,13 @@ void Fl::set_color(Fl_Color i, uchar red, uchar green, uchar blue) {
 
 void Fl::set_color(Fl_Color i, unsigned int c)
 {
-  fl_graphics_driver->set_color(i, c);
+  Fl_Graphics_Driver::default_driver().set_color(i, c);
 }
 
 
 void Fl::free_color(Fl_Color i, int overlay)
 {
-  fl_graphics_driver->free_color(i, overlay);
+  Fl_Graphics_Driver::default_driver().free_color(i, overlay);
 }
 
 

src/fl_font.cxx

@@ -53,12 +53,12 @@ void fl_draw(const char* str, int l, float x, float y) {
 
 void fl_set_spot(int font, int size, int X, int Y, int W, int H, Fl_Window *win)
 {
-  fl_graphics_driver->set_spot(font, size, X, Y, W, H, win);
+  Fl_Graphics_Driver::default_driver().set_spot(font, size, X, Y, W, H, win);
 }
 
 void fl_reset_spot()
 {
-  fl_graphics_driver->reset_spot();
+  Fl_Graphics_Driver::default_driver().reset_spot();
 }
 
 //

src/gl_start.cxx

@@ -89,7 +89,7 @@ void gl_start() {
     int x, y, w, h;
     if (fl_clip_box(0, 0, Fl_Window::current()->w(), Fl_Window::current()->h(),
 		    x, y, w, h)) {
-      fl_clip_region(Fl_Graphics_Driver::XRectangleRegion(x,y,w,h));
+      fl_clip_region(Fl_Graphics_Driver::default_driver().XRectangleRegion(x,y,w,h));
       glScissor(x, Fl_Window::current()->h()-(y+h), w, h);
       glEnable(GL_SCISSOR_TEST);
     } else {