Reorder event handling functions

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

diff --git a/source/widget.h b/source/widget.h
index 9bdc2c0e13eba4a24eca88e585b577a2a706e996..2bf751a714f0db3a25bc45015894181fe3c96562 100644 (file)
--- a/source/widget.h
+++ b/source/widget.h
@@ -3,7 +3,9 @@
 
 #include <string>
 #include <msp/datafile/objectloader.h>
+#include <msp/gl/renderer.h>
 #include "geometry.h"
+#include "partcache.h"
 #include "state.h"
 
 namespace Msp {
@@ -15,8 +17,7 @@ class Resources;
 class Style;
 
 /**
-Base class for all widgets.  Derived classes should call update_style in 
-constructor, because it can't be done correctly in the Widget constructor.
+Base class for all widgets.
 */
 class Widget
 {
@@ -48,43 +49,56 @@ protected:
        bool focusable;
        Container *parent;
        std::string tooltip;
+       PartCache part_cache;
 
        Widget();
+private:
+       Widget(const Widget &);
+       Widget &operator=(const Widget &);
 public:
        virtual ~Widget();
 
-       /**
-       Returns the name of the widget class.  Used for style lookup.
-       */
+       /// Returns the name of the widget class.  Used for style lookup.
        virtual const char *get_class() const { return "widget"; }
 
        void set_position(int, int);
        void set_size(unsigned, unsigned);
-       virtual void autosize();
+       void autosize();
+       void autosize(Geometry &) const;
+protected:
+       virtual void autosize_special(const Part &, Geometry &) const { };
+public:
        void set_geometry(const Geometry &);
        const Geometry &get_geometry() const { return geom; }
 
+       void map_coords_to_ancestor(int &, int &, const Widget &) const;
+
 protected:
-       /**
-       Sets the widget's parent Container.  The widget must be unparented when
-       calling this function with a non-null parameter.
-       */
+       /** Sets the widget's parent Container.  The widget must be unparented when
+       calling this function with a non-null parameter. */
        void set_parent(Container *);
 public:
        Container *get_parent() const { return parent; }
 
-       /**
-       Sets the widget style.  The final style name is constructed by concatenating
-       the widget class and the style name with a dash.
-       */
+       /** Finds the closest ancestor of a specific type. */
+       template<typename T>
+       T *find_ancestor() const
+       {
+               for(Widget *w=parent; w; w=w->get_parent())
+                       if(T *tw = dynamic_cast<T *>(w))
+                               return tw;
+               return 0;
+       }
+
+       /** Sets the widget style.  The name of the resource to be looked up is
+       constructed by concatenating the widget class and the style name with a
+       dash. */
        void set_style(const std::string &);
        const Style &get_style() const { return *style; }
 
 protected:
-       /**
-       Gets a style object from the resource collection based on the class and
-       style names of the widget.
-       */
+       /** Gets a style object from the resource collection based on the class and
+       style names of the widget. */
        void update_style();
 
 public:
@@ -96,16 +110,24 @@ public:
        void set_focusable(bool);
        bool is_focusable() const { return focusable; }
        void set_focus();
+       void set_enabled(bool);
+       bool is_enabled() const { return !(state&DISABLED); }
 
 protected:
        void set_state(State s) { set_state(s, s); }
        void clear_state(State s) { set_state(s, NORMAL); }
        void set_state(State, State);
+public:
+       State get_state() const { return state; }
+
+protected:
+       void rebuild();
+       virtual void rebuild_special(const Part &);
 
 public:
-       void render() const;
+       void render(GL::Renderer &) const;
 protected:
-       virtual void render_special(const Part &) const { }
+       virtual void render_special(const Part &, GL::Renderer &) const { }
 
 public:
        // Events
@@ -114,6 +136,9 @@ public:
        virtual void pointer_motion(int, int) { }
        virtual void pointer_enter();
        virtual void pointer_leave();
+       virtual void touch_press(int, int, unsigned);
+       virtual void touch_release(int, int, unsigned);
+       virtual void touch_motion(int, int, unsigned);
        virtual void key_press(unsigned, unsigned) { }
        virtual void key_release(unsigned, unsigned) { }
        virtual void character(wchar_t) { }