X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fwidget.cpp;h=a9c233b5d8c370a0ece166c00bc81a8fb1b1f0ff;hb=e6a6b3fbd760e487c5df1a6d70ed0700d151710b;hp=7496f8bdda1e849c3f35768d2d2ca6f29a11f503;hpb=d2d5b4c4dedf90a42dd2baff8334318b1d000f64;p=libs%2Fgltk.git

diff --git a/source/widget.cpp b/source/widget.cpp
index 7496f8b..a9c233b 100644
--- a/source/widget.cpp
+++ b/source/widget.cpp
@@ -44,6 +44,8 @@ void Widget::autosize()
 		return;
 
 	Geometry ageom;
+	ageom.x = geom.x;
+	ageom.y = geom.y;
 	const Style::PartSeq &parts = style->get_parts();
 	for(Style::PartSeq::const_iterator i=parts.begin(); i!=parts.end(); ++i)
 	{
@@ -63,9 +65,29 @@ void Widget::autosize()
 
 void Widget::set_geometry(const Geometry &g)
 {
+	bool size_changed = (g.w!=geom.w || g.h!=geom.h);
 	geom = g;
-	on_geometry_change();
-	rebuild();
+	if(size_changed)
+	{
+		// TODO maybe rename this to on_size_change
+		on_geometry_change();
+		rebuild();
+	}
+}
+
+void Widget::map_coords_to_ancestor(int &x, int &y, const Widget &ancestor) const
+{
+	for(const Widget *w=this; w; w=w->get_parent())
+	{
+		if(w==&ancestor)
+			return;
+
+		const Geometry &wgeom = w->get_geometry();
+		x += wgeom.x;
+		y += wgeom.y;
+	}
+
+	throw hierarchy_error("not an ancestor");
 }
 
 void Widget::set_parent(Container *p)