Divide virtual Fl_Screen_Driver::open_display() in a platform-specific part followed by a platform-independent part.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12245 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/Fl_Screen_Driver.H

@@ -155,8 +155,10 @@ public:
   // optional methods to enable/disable input methods for complex scripts
   virtual void enable_im() {}
   virtual void disable_im() {}
+  // calls open_display_platform() and then does platform-independent work
+  void open_display();
   // implement to open access to the display
-  virtual void open_display() {}
+  virtual void open_display_platform() {}
   // optional method to close display access
   virtual void close_display() {}
   // compute dimensions of an Fl_Offscreen

src/Fl.cxx

@@ -1978,19 +1978,6 @@ void Fl::disable_im()
 void fl_open_display()
 {
   Fl::screen_driver()->open_display();
-  static bool been_here = false;
-  if (!been_here) {
-    been_here = true;
-    Fl_Screen_Driver *dr = Fl::screen_driver();
-    if (dr->rescalable()) {
-      float factor = dr->default_scale_factor();
-      for (int i = 0; i < dr->screen_count(); i++) dr->scale(i, factor);
-#if defined(FLTK_HIDPI_SUPPORT) || !(defined(WIN32) || defined(__APPLE__))
-      Fl::add_handler(Fl_Screen_Driver::scale_handler);
-#endif
-      Fl_Graphics_Driver::default_driver().scale(factor);
-    }
-  }
 }
 
 void fl_close_display()

src/Fl_Screen_Driver.cxx

@@ -502,6 +502,23 @@ float Fl_Screen_Driver::default_scale_factor()
 }
 
 
+void Fl_Screen_Driver::open_display()
+{
+  open_display_platform();
+  static bool been_here = false;
+  if (!been_here) {
+    been_here = true;
+    if (rescalable()) {
+      float factor = default_scale_factor();
+      for (int i = 0; i < screen_count(); i++) scale(i, factor);
+#if defined(FLTK_HIDPI_SUPPORT) || !(defined(WIN32) || defined(__APPLE__))
+      Fl::add_handler(Fl_Screen_Driver::scale_handler);
+#endif
+      Fl_Graphics_Driver::default_driver().scale(factor);
+    }
+  }
+}
+
 //
 // End of "$Id$".
 //

src/Fl_cocoa.mm

@@ -1703,7 +1703,7 @@ void Fl_Darwin_System_Driver::open_callback(void (*cb)(const char *)) {
 }
 */
 
-void Fl_Cocoa_Screen_Driver::open_display() {
+void Fl_Cocoa_Screen_Driver::open_display_platform() {
   static char beenHereDoneThat = 0;
   if ( !beenHereDoneThat ) {
     beenHereDoneThat = 1;

src/Fl_win32.cxx

@@ -492,7 +492,7 @@ int Fl_WinAPI_Screen_Driver::ready() {
 
 //FILE *LOG=fopen("log.log","w");
 
-void Fl_WinAPI_Screen_Driver::open_display() {
+void Fl_WinAPI_Screen_Driver::open_display_platform() {
   static char beenHereDoneThat = 0;
 
   if (beenHereDoneThat)

src/Fl_x.cxx

@@ -601,7 +601,7 @@ void Fl_X11_Screen_Driver::disable_im() {
   fl_xim_deactivate();
 }
 
-void Fl_X11_Screen_Driver::open_display() {
+void Fl_X11_Screen_Driver::open_display_platform() {
   if (fl_display) return;
 
   setlocale(LC_CTYPE, "");

src/drivers/Cocoa/Fl_Cocoa_Screen_Driver.H

@@ -93,7 +93,7 @@ public:
   virtual void get_mouse(int &x, int &y);
   virtual void enable_im();
   virtual void disable_im();
-  virtual void open_display();
+  virtual void open_display_platform();
   // --- compute dimensions of an Fl_Offscreen
   virtual void offscreen_size(Fl_Offscreen o, int &width, int &height);
 };

src/drivers/WinAPI/Fl_WinAPI_Screen_Driver.H

@@ -76,7 +76,7 @@ public:
   virtual void get_mouse(int &x, int &y);
   virtual void enable_im();
   virtual void disable_im();
-  virtual void open_display();
+  virtual void open_display_platform();
   virtual void offscreen_size(Fl_Offscreen off, int &width, int &height);
   
   virtual APP_SCALING_CAPABILITY rescalable() { return SYSTEMWIDE_APP_SCALING; }

src/drivers/X11/Fl_X11_Screen_Driver.H

@@ -99,7 +99,7 @@ public:
   virtual void get_mouse(int &x, int &y);
   virtual void enable_im();
   virtual void disable_im();
-  virtual void open_display();
+  virtual void open_display_platform();
   virtual void close_display();
   // --- compute dimensions of an Fl_Offscreen
   virtual void offscreen_size(Fl_Offscreen o, int &width, int &height);