Allow running fluid -c without opening the X11 display.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11259 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

2 files changed, 7 insertions, 6 deletions

diff --git a/src/drivers/Xlib/Fl_Xlib_Graphics_Driver.H b/src/drivers/Xlib/Fl_Xlib_Graphics_Driver.H
index c8d12d880..ef225092d 100644
--- a/src/drivers/Xlib/Fl_Xlib_Graphics_Driver.H
+++ b/src/drivers/Xlib/Fl_Xlib_Graphics_Driver.H
@@ -42,6 +42,7 @@ public:
   Fl_Xlib_Graphics_Driver(void);
   virtual int has_feature(driver_feature mask) { return mask & NATIVE; }
   virtual void *gc() { return gc_; }
+  virtual void gc(void *value);
   char can_do_alpha_blending();
   
   // --- bitmap stuff
diff --git a/src/drivers/Xlib/Fl_Xlib_Graphics_Driver.cxx b/src/drivers/Xlib/Fl_Xlib_Graphics_Driver.cxx
index adc1c9362..83103c7e4 100644
--- a/src/drivers/Xlib/Fl_Xlib_Graphics_Driver.cxx
+++ b/src/drivers/Xlib/Fl_Xlib_Graphics_Driver.cxx
@@ -50,15 +50,15 @@ Fl_Graphics_Driver *Fl_Graphics_Driver::newMainGraphicsDriver()
 GC Fl_Xlib_Graphics_Driver::gc_ = NULL;
 
 Fl_Xlib_Graphics_Driver::Fl_Xlib_Graphics_Driver(void) {
-  if (!gc_) {
-    fl_open_display();
-    // the unique GC used by all X windows
-    gc_ = XCreateGC(fl_display, RootWindow(fl_display, fl_screen), 0, 0);
-    fl_gc = gc_;
-  }
   mask_bitmap_ = NULL;
 }
 
+void Fl_Xlib_Graphics_Driver::gc(void *value) {
+  gc_ = (GC)value;
+  fl_gc = gc_;
+}
+
+
 char Fl_Xlib_Graphics_Driver::can_do_alpha_blending() {
   return Fl_X::xrender_supported();
 }