Defer widget rebuild to just before they are rendered

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

diff --git a/source/widget.h b/source/widget.h
index 2e8ef7ab09ae8002f4f1037b30dba36d4dc5c40e..7cbec37a5455e62957d7ad8e02ff0eda17f9fbad 100644 (file)
--- a/source/widget.h
+++ b/source/widget.h
@@ -41,6 +41,7 @@ public:
        sigc::signal<void> signal_grab_pointer;
        sigc::signal<void> signal_ungrab_pointer;
        sigc::signal<void, const Time::TimeDelta &> signal_request_animation;
+       sigc::signal<void> signal_rebuild_needed;
 
 protected:
        Geometry geom;
@@ -52,6 +53,7 @@ protected:
        Container *parent;
        std::string tooltip;
        PartCache part_cache;
+       bool rebuild_needed;
        Time::TimeDelta anim_interval;
 
        Widget();
@@ -133,6 +135,8 @@ public:
        const Time::TimeDelta &get_animation_interval() const { return anim_interval; }
 
 protected:
+       void mark_rebuild();
+       virtual void rebuild_hierarchy();
        void rebuild();
        virtual void rebuild_special(const Part &);