fix prev. commit

[ardour.git] / gtk2_ardour / utils.cc

diff --git a/gtk2_ardour/utils.cc b/gtk2_ardour/utils.cc
index c903e591b496731d1d00717c2686919a883da8dd..fcfdbe644cffb33871c4a16526231628e99ba0a2 100644 (file)
--- a/gtk2_ardour/utils.cc
+++ b/gtk2_ardour/utils.cc
@@ -921,3 +921,40 @@ ARDOUR_UI_UTILS::rate_as_string (float r)
        }
        return buf;
 }
+
+bool
+ARDOUR_UI_UTILS::windows_overlap (Gtk::Window *a, Gtk::Window *b)
+{
+
+       if (!a || !b) {
+               return false;
+       }
+       if (a->get_screen() == b->get_screen()) {
+               gint ex, ey, ew, eh;
+               gint mx, my, mw, mh;
+
+               a->get_position (ex, ey);
+               a->get_size (ew, eh);
+               b->get_position (mx, my);
+               b->get_size (mw, mh);
+
+               GdkRectangle e;
+               GdkRectangle m;
+               GdkRectangle r;
+
+               e.x = ex;
+               e.y = ey;
+               e.width = ew;
+               e.height = eh;
+
+               m.x = mx;
+               m.y = my;
+               m.width = mw;
+               m.height = mh;
+
+               if (gdk_rectangle_intersect (&e, &m, &r)) {
+                       return true;
+               }
+       }
+       return false;
+}