2 files changed, 50 insertions, 0 deletions

diff --git a/src/drivers/X11/Fl_X11_Window_Driver.H b/src/drivers/X11/Fl_X11_Window_Driver.H
index 3e4a80880..02c0de989 100644
--- a/src/drivers/X11/Fl_X11_Window_Driver.H
+++ b/src/drivers/X11/Fl_X11_Window_Driver.H
@@ -60,13 +60,21 @@ struct Fl_Window_Driver::shape_data_type {
 class FL_EXPORT Fl_X11_Window_Driver : public Fl_Window_Driver
 {
   friend class Fl_X;
+
 private:
+  void decorated_win_size(int &w, int &h);
   void combine_mask();
   void shape_bitmap_(Fl_Image* b);
   void shape_alpha_(Fl_Image* img, int offset);
+  
 public:
   Fl_X11_Window_Driver(Fl_Window*);
   ~Fl_X11_Window_Driver();
+
+  // --- window data
+  virtual int decorated_w();
+  virtual int decorated_h();
+
   virtual void take_focus();
   virtual void shape(const Fl_Image* img);
   virtual void draw();
diff --git a/src/drivers/X11/Fl_X11_Window_Driver.cxx b/src/drivers/X11/Fl_X11_Window_Driver.cxx
index 05c27a972..6ff2158c2 100644
--- a/src/drivers/X11/Fl_X11_Window_Driver.cxx
+++ b/src/drivers/X11/Fl_X11_Window_Driver.cxx
@@ -72,6 +72,48 @@ Fl_X11_Window_Driver::~Fl_X11_Window_Driver()
   delete icon_;
 }
 
+
+// --- private
+
+void Fl_X11_Window_Driver::decorated_win_size(int &w, int &h)
+{
+  Fl_Window *win = pWindow;
+  w = win->w();
+  h = win->h();
+  if (!win->shown() || win->parent() || !win->border() || !win->visible()) return;
+  Window root, parent, *children;
+  unsigned n = 0;
+  Status status = XQueryTree(fl_display, Fl_X::i(win)->xid, &root, &parent, &children, &n);
+  if (status != 0 && n) XFree(children);
+  // when compiz is used, root and parent are the same window
+  // and I don't know where to find the window decoration
+  if (status == 0 || root == parent) return;
+  XWindowAttributes attributes;
+  XGetWindowAttributes(fl_display, parent, &attributes);
+  w = attributes.width;
+  h = attributes.height;
+}
+
+
+// --- window data
+
+int Fl_X11_Window_Driver::decorated_h()
+{
+  int w, h;
+  decorated_win_size(w, h);
+  return h;
+}
+
+int Fl_X11_Window_Driver::decorated_w()
+{
+  int w, h;
+  
+  decorated_win_size(w, h);
+  return w;
+}
+
+
+
 void Fl_X11_Window_Driver::take_focus()
 {
   Fl_X *i = Fl_X::i(pWindow);