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/* abGate - LV2 Noise Gate Plugin
*
* Copyright 2011 Antanas Bružas
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _KNOB_H
#define _KNOB_H
#include "plugin_configuration.h"
#include <gtkmm/adjustment.h>
#include <gtkmm/misc.h>
using namespace Gtk;
class knob: public Misc {
public:
knob(const sigc::slot<void> knob_slot, double default_value, double min, double max, double step);
~knob();
void set_picture_size(int x, int y);
void connecting(Adjustment*, const sigc::slot<void> slot);
void value_changed();
float get_knob_value();
void set_knob_value(float value);
// Dispacher used to update GUI from the main (GUI) thread
Glib::Dispatcher sig_done;
int new_frame;
protected:
virtual bool on_expose_event(GdkEventExpose*);
virtual bool on_button_press_event(GdkEventButton*);
virtual bool on_button_release_event(GdkEventButton*);
virtual bool on_motion_notify_event(GdkEventMotion*);
private:
void mouse_pos_change(gint x, gint y);
Glib::RefPtr<Gdk::Pixbuf> pixbuf;
Glib::RefPtr<Gdk::Drawable> m_drawable;
Adjustment *a_knb;
gint current_frame, all_frames, width, height, center_x, center_y, widget_x, widget_y;
};
#endif
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