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livetrax/gtk2_ardour/plugin_display.h

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/*
Copyright (C) 2017 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_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 ();
}
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