stateful_button.h

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/*
    Copyright (C) 2005 Paul Davis

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef __pbd_gtkmm_abutton_h__
#define __pbd_gtkmm_abutton_h__

#include <vector>

#include <gtkmm/togglebutton.h>

#include "gtkmm2ext/visibility.h"

namespace Gtkmm2ext {

class LIBGTKMM2EXT_API StateButton 
{
   public:
        StateButton();
        virtual ~StateButton() {}

        void set_visual_state (int);
        int  get_visual_state () { return visual_state; }
        void set_self_managed (bool yn) { _self_managed = yn; }
        virtual void set_widget_name (const std::string& name) = 0;

  protected:
        int  visual_state;
        bool _self_managed;
        bool _is_realized;
        bool style_changing;
        Gtk::StateType state_before_prelight;
        bool is_toggle;

        virtual std::string  get_widget_name() const = 0;
        virtual Gtk::Widget* get_child_widget () = 0;

        void avoid_prelight_on_style_changed (const Glib::RefPtr<Gtk::Style>& style, GtkWidget* widget);
        void avoid_prelight_on_state_changed (Gtk::StateType old_state, GtkWidget* widget);
};


class LIBGTKMM2EXT_API StatefulToggleButton : public StateButton, public Gtk::ToggleButton
{
   public:
        StatefulToggleButton();
        explicit StatefulToggleButton(const std::string &label);
        ~StatefulToggleButton() {}
        void set_widget_name (const std::string& name);

  protected:
        void on_realize ();
        void on_toggled ();
        void on_style_changed (const Glib::RefPtr<Gtk::Style>& style);
        void on_state_changed (Gtk::StateType old_state);

        Gtk::Widget* get_child_widget ();
        std::string get_widget_name() const { return get_name(); }
};

class LIBGTKMM2EXT_API StatefulButton : public StateButton, public Gtk::Button
{
   public:
        StatefulButton();
        explicit StatefulButton(const std::string &label);
        virtual ~StatefulButton() {}
        void set_widget_name (const std::string& name);
        
  protected:
        void on_realize ();
        void on_style_changed (const Glib::RefPtr<Gtk::Style>& style);
        void on_state_changed (Gtk::StateType old_state);
        
        Gtk::Widget* get_child_widget ();
        std::string get_widget_name() const { return get_name(); }
};

};

#endif