speaker_dialog.h

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/*
    Copyright (C) 2011 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 __ardour_gtk_speaker_dialog_h__
#define __ardour_gtk_speaker_dialog_h__

#include <gtkmm/drawingarea.h>
#include <gtkmm/spinbutton.h>
#include <gtkmm/box.h>
#include <gtkmm/adjustment.h>
#include <gtkmm/aspectframe.h>

#include "ardour/speakers.h"

#include "ardour_window.h"

class SpeakerDialog  : public ArdourWindow
{
public:
        SpeakerDialog ();

        boost::shared_ptr<ARDOUR::Speakers> get_speakers() const;
        void set_speakers (boost::shared_ptr<ARDOUR::Speakers>);

private:
        boost::weak_ptr<ARDOUR::Speakers> _speakers;
        Gtk::HBox        hbox;
        Gtk::VBox        side_vbox;
        Gtk::AspectFrame aspect_frame;
        Gtk::DrawingArea darea;
        Gtk::Adjustment  azimuth_adjustment;
        Gtk::SpinButton  azimuth_spinner;
        Gtk::Button      add_speaker_button;
        Gtk::Button      remove_speaker_button;
        int              width;         
        int              height;        
        int              x_origin;      
        int              y_origin;      

        double           drag_offset_x;
        double           drag_offset_y;
        int              drag_index;
        int              selected_index; 
        PBD::ScopedConnection selected_speaker_connection;
        bool             ignore_speaker_position_change;
        bool             ignore_azimuth_change;

        bool darea_expose_event (GdkEventExpose*);
        void darea_size_allocate (Gtk::Allocation& alloc);
        bool darea_motion_notify_event (GdkEventMotion *ev);
        bool handle_motion (gint evx, gint evy, GdkModifierType state);
        bool darea_button_press_event (GdkEventButton *ev);
        bool darea_button_release_event (GdkEventButton *ev);

        void clamp_to_circle (double& x, double& y);
        void gtk_to_cart (PBD::CartesianVector& c) const;
        void cart_to_gtk (PBD::CartesianVector& c) const;
        int find_closest_object (gdouble x, gdouble y);

        void add_speaker ();
        void remove_speaker ();
        void azimuth_changed ();
        void set_selected (int);
        void speaker_position_changed ();
};

#endif /* __ardour_gtk_speaker_dialog_h__ */