Implement keyboard navigation for most widgets

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

diff --git a/source/widget.h b/source/widget.h
index 7c601d2b5860668b426e3b8466ef316ab92fb2c3..eb8fa2324350b42335eb92a0bd8aec7fc70e2f7b 100644 (file)
--- a/source/widget.h
+++ b/source/widget.h
@@ -5,6 +5,7 @@
 #include <msp/datafile/objectloader.h>
 #include <msp/gl/renderer.h>
 #include "geometry.h"
+#include "inputmethod.h"
 #include "partcache.h"
 #include "state.h"
 
@@ -17,8 +18,7 @@ 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
 {
@@ -47,12 +47,15 @@ protected:
        const Style *style;
        State state;
        bool visible;
-       bool focusable;
+       InputType input_type;
        Container *parent;
        std::string tooltip;
        PartCache part_cache;
 
        Widget();
+private:
+       Widget(const Widget &);
+       Widget &operator=(const Widget &);
 public:
        virtual ~Widget();
 
@@ -62,8 +65,9 @@ public:
        void set_position(int, int);
        void set_size(unsigned, unsigned);
        void autosize();
+       void autosize(Geometry &) const;
 protected:
-       virtual void autosize_special(const Part &, Geometry &) { }
+       virtual void autosize_special(const Part &, Geometry &) const { };
 public:
        void set_geometry(const Geometry &);
        const Geometry &get_geometry() const { return geom; }
@@ -104,9 +108,14 @@ public:
 
        void set_visible(bool);
        bool is_visible() const { return visible; }
-       void set_focusable(bool);
-       bool is_focusable() const { return focusable; }
+       InputType get_input_type() const { return input_type; }
+       bool is_focusable() const { return visible && input_type!=INPUT_NONE; }
        void set_focus();
+       void set_enabled(bool);
+       bool is_enabled() const { return !(state&DISABLED); }
+
+       // Deprecated
+       void set_focusable(bool);
 
 protected:
        void set_state(State s) { set_state(s, s); }
@@ -131,11 +140,15 @@ public:
        virtual void pointer_motion(int, int) { }
        virtual void pointer_enter();
        virtual void pointer_leave();
-       virtual void key_press(unsigned, unsigned) { }
-       virtual void key_release(unsigned, unsigned) { }
-       virtual void character(wchar_t) { }
+       virtual void touch_press(int, int, unsigned);
+       virtual void touch_release(int, int, unsigned);
+       virtual void touch_motion(int, int, unsigned);
+       virtual bool key_press(unsigned, unsigned) { return false; }
+       virtual bool key_release(unsigned, unsigned) { return false; }
+       virtual bool character(wchar_t) { return false; }
        virtual void focus_in();
        virtual void focus_out();
+       virtual bool navigate(Navigation) { return false; }
 protected:
        virtual void on_geometry_change() { }
        virtual void on_style_change() { }