ardour/gtk2_ardour/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(boost::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);
boost::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