Make autosize_special const and add a const autosize overload

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

diff --git a/source/button.h b/source/button.h
index 407e2f950bfb04424796aaf312f11c9c4a98e553..79045150a71a28f98d3a996ffa7cc907487dad42 100644 (file)
--- a/source/button.h
+++ b/source/button.h
@@ -2,26 +2,56 @@
 #define MSP_GLTK_BUTTON_H_
 
 #include <sigc++/sigc++.h>
+#include <msp/gl/texture2d.h>
+#include "text.h"
 #include "widget.h"
 
 namespace Msp {
 namespace GLtk {
 
+/**
+A clickable button widget.  Buttons can have a text label, which is displayed
+in a spacial part "text".
+*/
 class Button: public Widget
 {
 public:
+       class Loader: public DataFile::DerivedObjectLoader<Button, Widget::Loader>
+       {
+       public:
+               Loader(Button &);
+       private:
+               void text(const std::string &);
+       };
+
        sigc::signal<void> signal_clicked;
 
-       Button(const Resources &, const std::string & =std::string());
-       void set_text(const std::string &);
 private:
-       std::string text;
+       Text text;
+       const GL::Texture2D *icon;
        bool pressed;
 
-       const char *get_class() const { return "button"; }
-       void render_part(const Part &) const;
-       void on_button_press(int, int, unsigned);
-       void on_button_release(int, int, unsigned);
+public:
+       Button(const std::string & = std::string());
+
+       virtual const char *get_class() const { return "button"; }
+
+private:
+       virtual void autosize_special(const Part &, Geometry &) const;
+
+public:
+       void set_text(const std::string &);
+       void set_icon(const GL::Texture2D *);
+
+private:
+       virtual void rebuild_special(const Part &);
+
+public:
+       virtual void button_press(int, int, unsigned);
+       virtual void button_release(int, int, unsigned);
+       virtual void pointer_motion(int, int);
+private:
+       virtual void on_style_change();
 };
 
 } // namespace GLtk