STR #602

OpenGL Windows inside Tabs that were inside of tabs were not drawn correctly. This was due to the fact that a first 'show' on a Tabs widget would show *all* groups inside the tab (unless the user called 'value(...)' on it first). This was only visible on OS X, because subwindow clipping would wrongfully clip even hidden subwindows.
 


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@4448 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

CHANGES

@@ -2,6 +2,7 @@ CHANGES IN FLTK 1.1.7
 
 	- Documentation fixes (STR #648, STR #692, STR #730, STR
 	  #744, STR #745, STR #942)
+	- Fixed OS X issue with OpenGL windows inside of Tabs (STR #602)
 	- Fluid Code Editor would occasionally not draw the last character
 	  in the buffer (STR #798)
 	- Fluid Declaration private flag fixed (STR #799)

src/Fl_Tabs.cxx

@@ -187,6 +187,8 @@ int Fl_Tabs::handle(int event) {
       default:
         break;
     }
+  case FL_SHOW:
+    value(); // update visibilities and fall through
   default:
     return Fl_Group::handle(event);
 

src/Fl_mac.cxx

@@ -1916,8 +1916,9 @@ void Fl_Window::make_current()
   // \todo for performance reasons: we don't have to create this unless the child windows moved
   for ( Fl_X *cx = i->xidChildren; cx; cx = cx->xidNext )
   {
-    Fl_Region r = NewRgn();
     Fl_Window *cw = cx->w;
+    if (!cw->visible_r()) continue;
+    Fl_Region r = NewRgn();
     SetRectRgn( r, cw->x() - xp, cw->y() - yp, 
                    cw->x() + cw->w() - xp, cw->y() + cw->h() - yp );
     DiffRgn( fl_window_region, r, fl_window_region );