Print at high res with Fl_Paged_Device::print_window_part() when using a retina display

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10393 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

2 files changed, 25 insertions, 2 deletions

diff --git a/FL/Fl_Printer.H b/FL/Fl_Printer.H
index a70670473..d7840dcfe 100644
--- a/FL/Fl_Printer.H
+++ b/FL/Fl_Printer.H
@@ -3,7 +3,7 @@
 //
 // Printing support for the Fast Light Tool Kit (FLTK).
 //
-// Copyright 2010-2011 by Bill Spitzak and others.
+// Copyright 2010-2014 by Bill Spitzak and others.
 //
 // This library is free software. Distribution and use rights are outlined in
 // the file "COPYING" which should have been included with this file.  If this
@@ -84,6 +84,9 @@ public:
   void untranslate(void);
   int end_page (void);
   void end_job (void);
+#ifdef __APPLE__
+  void print_window_part(Fl_Window *win, int x, int y, int w, int h, int delta_x, int delta_y);
+#endif
   /** \brief The destructor */
   ~Fl_System_Printer(void);
 }; // class Fl_System_Printer
diff --git a/src/Fl_Quartz_Printer.mm b/src/Fl_Quartz_Printer.mm
index 57e46e1bb..9eb901abf 100644
--- a/src/Fl_Quartz_Printer.mm
+++ b/src/Fl_Quartz_Printer.mm
@@ -3,7 +3,7 @@
 //
 // Mac OS X-specific printing support (objective-c++) for the Fast Light Tool Kit (FLTK).
 //
-// Copyright 2010-2012 by Bill Spitzak and others.
+// Copyright 2010-2014 by Bill Spitzak and others.
 //
 // This library is free software. Distribution and use rights are outlined in
 // the file "COPYING" which should have been included with this file.  If this
@@ -315,6 +315,26 @@ void Fl_System_Printer::end_job (void)
   if (w) w->show();
 }
 
+// version that prints at high res if using a retina display
+void Fl_System_Printer::print_window_part(Fl_Window *win, int x, int y, int w, int h, int delta_x, int delta_y)
+{
+  Fl_Surface_Device *current = Fl_Surface_Device::surface();
+  Fl_Display_Device::display_device()->set_current();
+  Fl_Window *save_front = Fl::first_window();
+  win->show();
+  fl_gc = NULL;
+  Fl::check();
+  win->make_current();
+  CGImageRef img = Fl_X::CGImage_from_window_rect(win, x, y, w, h);
+  if (save_front != win) save_front->show();
+  current->set_current();
+  CGRect rect = { { delta_x, delta_y }, { w, h } };
+  Fl_X::q_begin_image(rect, 0, 0, w, h);
+  CGContextDrawImage(fl_gc, rect, img);
+  Fl_X::q_end_image();
+  CFRelease(img);
+}
+
 #endif // __APPLE__
 
 //