Don't rebuild on state change if there are no visual changes

[libs/gltk.git] / source / widget.cpp

diff --git a/source/widget.cpp b/source/widget.cpp
index 13c5174df43e33cc6db256bbbe47ec45d3de7c4a..8b7f1cbd88b351305a83f6dd56b2c9d5e32ac69b 100644 (file)
--- a/source/widget.cpp
+++ b/source/widget.cpp
@@ -39,13 +39,18 @@ void Widget::set_size(unsigned w, unsigned h)
 }
 
 void Widget::autosize()
+{
+       Geometry ageom;
+       autosize(ageom);
+       set_geometry(ageom);
+}
+
+void Widget::autosize(Geometry &ageom) const
 {
        if(!style)
                return;
 
-       Geometry ageom;
-       ageom.x = geom.x;
-       ageom.y = geom.y;
+       ageom = Geometry(geom.x, geom.y, 0, 0);
        const Style::PartSeq &parts = style->get_parts();
        for(Style::PartSeq::const_iterator i=parts.begin(); i!=parts.end(); ++i)
        {
@@ -59,8 +64,6 @@ void Widget::autosize()
                else
                        autosize_special(*i, ageom);
        }
-
-       set_geometry(ageom);
 }
 
 void Widget::set_geometry(const Geometry &g)
@@ -75,6 +78,21 @@ void Widget::set_geometry(const Geometry &g)
        }
 }
 
+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)
 {
        if(parent && p)
@@ -157,10 +175,17 @@ void Widget::set_focus()
        signal_request_focus.emit();
 }
 
+void Widget::set_enabled(bool e)
+{
+       set_state(DISABLED, (e ? NORMAL : DISABLED));
+}
+
 void Widget::set_state(State mask, State bits)
 {
+       State old_state = state;
        state = (state&~mask)|bits;
-       rebuild();
+       if(style && style->compare_states(old_state, state))
+               rebuild();
 }
 
 void Widget::rebuild()