plugin_display.h

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/*
 * Copyright (C) 2017 Johannes Mueller <github@johannes-mueller.org>
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#ifndef __ardour_plugin_display__
#define __ardour_plugin_display__
 
#include <gtkmm/drawingarea.h>
 
#include "ardour/plugin.h"
 
class PluginDisplay : public Gtk::DrawingArea
{
public:
        PluginDisplay(std::shared_ptr<ARDOUR::Plugin>, uint32_t max_height = 80);
        virtual ~PluginDisplay();
 
protected:
        bool on_expose_event (GdkEventExpose *);
        void on_size_request (Gtk::Requisition* req);
        bool on_button_press_event (GdkEventButton *ev);
        bool on_button_release_event (GdkEventButton *ev);
 
        void plugin_going_away () {
                _qdraw_connection.disconnect ();
        }
 
        virtual void update_height_alloc (uint32_t inline_height);
        virtual uint32_t render_inline (cairo_t *, uint32_t width);
 
        virtual void display_frame (cairo_t* cr, double w, double h);
 
        std::shared_ptr<ARDOUR::Plugin> _plug;
        PBD::ScopedConnection _qdraw_connection;
        PBD::ScopedConnection _death_connection;
        cairo_surface_t* _surf;
        uint32_t _max_height;
        uint32_t _cur_height;
        bool _scroll;
};
 
#endif