barcontroller.h

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/*
    Copyright (C) 2004 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 __gtkmm2ext_bar_controller_h__
#define __gtkmm2ext_bar_controller_h__

#include <gtkmm/alignment.h>
#include <cairo.h>

#include "gtkmm2ext/visibility.h"
#include "gtkmm2ext/binding_proxy.h"
#include "gtkmm2ext/slider_controller.h"

namespace Gtkmm2ext {

class LIBGTKMM2EXT_API BarController : public Gtk::Alignment
{
  public:
        BarController (Gtk::Adjustment& adj, boost::shared_ptr<PBD::Controllable>);

        virtual ~BarController ();

        void set_sensitive (bool yn);

        PixFader::Tweaks tweaks() const { return _slider.tweaks (); }
        void set_tweaks (PixFader::Tweaks t) { _slider.set_tweaks (t);}

        sigc::signal<void> StartGesture;
        sigc::signal<void> StopGesture;

        /* export this to allow direct connection to button events */
        Gtk::Widget& event_widget() { return _slider; }

        sigc::signal<void, bool> SpinnerActive;

  protected:
        bool on_button_press_event (GdkEventButton*);
        bool on_button_release_event (GdkEventButton*);
        void on_style_changed (const Glib::RefPtr<Gtk::Style>&);

        virtual std::string get_label (double& /*x*/) {
                return "";
        }

        private:
        HSliderController _slider;
        bool entry_focus_out (GdkEventFocus*);
        void entry_activated ();
        void before_expose ();

        gint switch_to_bar ();
        gint switch_to_spinner ();

        bool _switching;
        bool _switch_on_release;


        void passtrhu_gesture_start() { StartGesture (); }
        void passtrhu_gesture_stop()  { StopGesture (); }
};


}; /* namespace */

#endif // __gtkmm2ext_bar_controller_h__