Add a selection_cleared signal to List

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

diff --git a/source/list.h b/source/list.h
index 351b0a461e27aed15c0d271835317301926b70aa..246a7294d6da99e457d81d6f0e529bb78e4fbf67 100644 (file)
--- a/source/list.h
+++ b/source/list.h
@@ -61,13 +61,23 @@ public:
                virtual const char *get_class() const { return "listitem"; }
 
        protected:
-               virtual void autosize_special(const Part &, Geometry &);
+               virtual void autosize_special(const Part &, Geometry &) const;
        public:
                void set_active(bool);
 
                virtual void render_special(const Part &, GL::Renderer &) const;
        };
 
+       class MultiColumnItem: public Item
+       {
+       protected:
+               virtual void check_widths(std::vector<unsigned> &) const;
+               virtual void set_widths(const std::vector<unsigned> &);
+
+       private:
+               virtual void on_style_change();
+       };
+
 private:
        class BasicItem: public Item
        {
@@ -120,6 +130,7 @@ private:
 
 public:
        sigc::signal<void, unsigned> signal_item_selected;
+       sigc::signal<void> signal_selection_cleared;
 
 private:
        ListData *data;
@@ -130,6 +141,7 @@ private:
        unsigned first;
        unsigned max_scroll;
        unsigned view_size;
+       bool ignore_slider_change;
 
        VSlider slider;
        std::vector<Item *> items;
@@ -145,7 +157,7 @@ public:
        virtual const char *get_class() const { return "list"; }
 
 private:
-       virtual void autosize_special(const Part &, Geometry &);
+       virtual void autosize_special(const Part &, Geometry &) const;
 
 public:
        void set_data(ListData &);
@@ -173,16 +185,14 @@ public:
        int get_selected_index() const { return sel_index; }
 
 private:
+       virtual void rebuild_special(const Part &);
        virtual void render_special(const Part &, GL::Renderer &) const;
 
 public:
        virtual void button_press(int, int, unsigned);
-private:
-       virtual void on_geometry_change();
-       virtual void on_style_change();
 
-       void reposition_slider();
-       void reposition_items();
+private:
+       void item_autosize_changed(Item *);
        void check_view_range();
        void slider_value_changed(double);
 };