Use Fl_Graphics_Driver::default_driver() when convenient.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@12088 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/fl_draw.H

@@ -759,7 +759,7 @@ inline void fl_draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int
   \returns 1 if true alpha blending supported by platform
   \returns 0 not supported so FLTK will use screen door transparency
   */
-inline char fl_can_do_alpha_blending() {return Fl_Display_Device::display_device()->driver()->can_do_alpha_blending();}
+inline char fl_can_do_alpha_blending() {return Fl_Graphics_Driver::default_driver().can_do_alpha_blending();}
 
 FL_EXPORT uchar *fl_read_image(uchar *p,int X,int Y,int W,int H,int alpha=0);
 

src/Fl_Bitmap.cxx

@@ -34,7 +34,7 @@ Fl_Bitmask fl_create_bitmask(int w, int h, const uchar *array) {
 }
 
 void fl_delete_bitmask(Fl_Bitmask bm) {
-  return Fl_Display_Device::display_device()->driver()->delete_bitmask(bm);
+  return Fl_Graphics_Driver::default_driver().delete_bitmask(bm);
 }
 
 // Create a 1-bit mask used for alpha blending

src/Fl_Image.cxx

@@ -314,7 +314,7 @@ Fl_RGB_Image::~Fl_RGB_Image() {
 }
 
 void Fl_RGB_Image::uncache() {
-  Fl_Display_Device::display_device()->driver()->uncache(this, id_, mask_);
+  Fl_Graphics_Driver::default_driver().uncache(this, id_, mask_);
 }
 
 Fl_Image *Fl_RGB_Image::copy(int W, int H) {

src/Fl_Pixmap.cxx

@@ -79,7 +79,7 @@ Fl_Pixmap::~Fl_Pixmap() {
 
 void Fl_Pixmap::uncache() {
   if (id_) {
-    Fl_Display_Device::display_device()->driver()->uncache_pixmap(id_);
+    Fl_Graphics_Driver::default_driver().uncache_pixmap(id_);
     id_ = 0;
   }
 

src/Fl_cocoa.mm

@@ -3245,7 +3245,7 @@ void Fl_Cocoa_Window_Driver::make_current()
   q_release_context();
   Fl_X *i = Fl_X::i(pWindow);
   fl_window = i->xid;
-  ((Fl_Quartz_Graphics_Driver*)Fl_Display_Device::display_device()->driver())->high_resolution( mapped_to_retina() );
+  ((Fl_Quartz_Graphics_Driver&)Fl_Graphics_Driver::default_driver()).high_resolution( mapped_to_retina() );
   
   NSGraphicsContext *nsgc;
 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
@@ -3255,7 +3255,7 @@ void Fl_Cocoa_Window_Driver::make_current()
 #endif
     nsgc = through_Fl_X_flush ? [NSGraphicsContext currentContext] : [NSGraphicsContext graphicsContextWithWindow:fl_window];
   gc = (CGContextRef)[nsgc graphicsPort];
-  Fl_Display_Device::display_device()->driver()->gc(gc);
+  Fl_Graphics_Driver::default_driver().gc(gc);
   CGContextSaveGState(gc); // native context
   // antialiasing must be deactivated because it applies to rectangles too
   // and escapes even clipping!!!
@@ -3283,13 +3283,13 @@ void Fl_Cocoa_Window_Driver::make_current()
 
 // Give the Quartz context back to the system
 void Fl_Cocoa_Window_Driver::q_release_context(Fl_Cocoa_Window_Driver *x) {
-  CGContextRef gc = (CGContextRef)Fl_Display_Device::display_device()->driver()->gc();
+  CGContextRef gc = (CGContextRef)Fl_Graphics_Driver::default_driver().gc();
   if (x && x->shown() && x->gc != gc) return;
   if (!gc) return;
   CGContextRestoreGState(gc); // match the CGContextSaveGState's of make_current
   CGContextRestoreGState(gc);
   CGContextFlush(gc);
-  Fl_Display_Device::display_device()->driver()->gc(0);
+  Fl_Graphics_Driver::default_driver().gc(0);
 #if defined(FLTK_USE_CAIRO)
   if (Fl::cairo_autolink_context()) Fl::cairo_make_current((Fl_Window*) 0); // capture gc changes automatically to update the cairo context adequately
 #endif

src/Fl_win32.cxx

@@ -2267,13 +2267,13 @@ HWND fl_window = NULL;
 
 // Here we ensure only one GetDC is ever in place.
 HDC fl_GetDC(HWND w) {
-  HDC gc = (HDC)Fl_Display_Device::display_device()->driver()->gc();
+  HDC gc = (HDC)Fl_Graphics_Driver::default_driver().gc();
   if (gc) {
     if (w == fl_window  &&  fl_window != NULL) return gc;
     if (fl_window) fl_release_dc(fl_window, gc); // ReleaseDC
   }
   gc = GetDC(w);
-  Fl_Display_Device::display_device()->driver()->gc(gc);
+  Fl_Graphics_Driver::default_driver().gc(gc);
   fl_save_dc(w, gc);
   fl_window = w;
   // calling GetDC seems to always reset these: (?)

src/Fl_x.cxx

@@ -616,7 +616,7 @@ void Fl_X11_Screen_Driver::open_display() {
   fl_open_display(d);
   // the unique GC used by all X windows
   GC gc = XCreateGC(fl_display, RootWindow(fl_display, fl_screen), 0, 0);
-  Fl_Display_Device::display_device()->driver()->gc(gc);
+  Fl_Graphics_Driver::default_driver().gc(gc);
 }
 
 

src/drivers/Cocoa/Fl_Cocoa_Screen_Driver.cxx

@@ -136,7 +136,7 @@ void Fl_Cocoa_Screen_Driver::beep(int type) {
 
 
 void Fl_Cocoa_Screen_Driver::flush() {
-  CGContextRef gc = (CGContextRef)Fl_Display_Device::display_device()->driver()->gc();
+  CGContextRef gc = (CGContextRef)Fl_Graphics_Driver::default_driver().gc();
   if (gc)
     CGContextFlush(gc);
 }

src/drivers/PostScript/Fl_PostScript.cxx

@@ -903,36 +903,36 @@ static const char *_fontNames[] = {
 };
 
 void Fl_PostScript_Graphics_Driver::font(int f, int s) {
-  Fl_Graphics_Driver *driver = Fl_Display_Device::display_device()->driver();
-  driver->font(f,s); // Use display fonts for font measurement
+  Fl_Graphics_Driver& driver = Fl_Graphics_Driver::default_driver();
+  driver.font(f,s); // Use display fonts for font measurement
   Fl_Graphics_Driver::font(f, s);
-  Fl_Font_Descriptor *desc = driver->font_descriptor();
+  Fl_Font_Descriptor *desc = driver.font_descriptor();
   this->font_descriptor(desc);
   if (f < FL_FREE_FONT) {
     fprintf(output, "/%s SF\n" , _fontNames[f]);
-    float ps_size = driver->scale_font_for_PostScript(desc, s);
+    float ps_size = driver.scale_font_for_PostScript(desc, s);
     clocale_printf("%.1f FS\n", ps_size);
   }
 }
 
 double Fl_PostScript_Graphics_Driver::width(const char *s, int n) {
-  return Fl_Display_Device::display_device()->driver()->width(s, n);
+  return Fl_Graphics_Driver::default_driver().width(s, n);
 }
 
 double Fl_PostScript_Graphics_Driver::width(unsigned u) {
-  return Fl_Display_Device::display_device()->driver()->width(u);
+  return Fl_Graphics_Driver::default_driver().width(u);
 }
 
 int Fl_PostScript_Graphics_Driver::height() {
-  return Fl_Display_Device::display_device()->driver()->height();
+  return Fl_Graphics_Driver::default_driver().height();
 }
 
 int Fl_PostScript_Graphics_Driver::descent() {
-  return Fl_Display_Device::display_device()->driver()->descent();
+  return Fl_Graphics_Driver::default_driver().descent();
 }
 
 void Fl_PostScript_Graphics_Driver::text_extents(const char *c, int n, int &dx, int &dy, int &w, int &h) {
-  Fl_Display_Device::display_device()->driver()->text_extents(c, n, dx, dy, w, h);
+  Fl_Graphics_Driver::default_driver().text_extents(c, n, dx, dy, w, h);
 }
 
 
@@ -998,7 +998,7 @@ static uchar *calc_mask(uchar *img, int w, int h, Fl_Color bg)
 void Fl_PostScript_Graphics_Driver::transformed_draw_extra(const char* str, int n, double x, double y, int w, bool rtl)
 {
   // scale for bitmask computation is set to 1 when we can't expect to have scalable fonts
-  float scale = Fl_Display_Device::display_device()->driver()->scale_bitmap_for_PostScript();
+  float scale = Fl_Graphics_Driver::default_driver().scale_bitmap_for_PostScript();
   Fl_Fontsize old_size = size();
   Fl_Font fontnum = Fl_Graphics_Driver::font();
   int w_scaled =  (int)(w * (scale + 0.5));

src/drivers/WinAPI/Fl_WinAPI_Screen_Driver.cxx

@@ -56,7 +56,7 @@ int Fl_WinAPI_Screen_Driver::visual(int flags)
 {
   fl_GetDC(0);
   if (flags & FL_DOUBLE) return 0;
-  HDC gc = (HDC)Fl_Display_Device::display_device()->driver()->gc();
+  HDC gc = (HDC)Fl_Graphics_Driver::default_driver().gc();
   if (!(flags & FL_INDEX) &&
       GetDeviceCaps(gc,BITSPIXEL) <= 8) return 0;
   if ((flags & FL_RGB8) && GetDeviceCaps(gc,BITSPIXEL)<24) return 0;