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/*
Copyright (C) 2003 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 __gtkmm2ext_fastmeter_h__
#define __gtkmm2ext_fastmeter_h__
#include <gtkmm/drawingarea.h>
#include <gdkmm/pixbuf.h>
namespace Gtkmm2ext {
class FastMeter : public Gtk::DrawingArea {
public:
enum Orientation {
Horizontal,
Vertical
};
FastMeter (long hold_cnt, unsigned long width, Orientation, int len=0, int clrb0=0x00ff00, int clr1=0xffff00, int clr2=0xffaa00, int clr3=0xff0000);
virtual ~FastMeter ();
void set (float level);
void clear ();
float get_level() { return current_level; }
float get_user_level() { return current_user_level; }
float get_peak() { return current_peak; }
long hold_count() { return hold_cnt; }
void set_hold_count (long);
protected:
bool on_expose_event (GdkEventExpose*);
void on_size_request (GtkRequisition*);
void on_size_allocate (Gtk::Allocation&);
private:
Glib::RefPtr<Gdk::Pixbuf> pixbuf;
gint pixheight;
gint pixwidth;
static int rgb0, rgb1, rgb2, rgb3;
Orientation orientation;
GdkRectangle pixrect;
GdkRectangle last_peak_rect;
gint request_width;
gint request_height;
unsigned long hold_cnt;
unsigned long hold_state;
float current_level;
float current_peak;
float current_user_level;
bool vertical_expose (GdkEventExpose*);
bool horizontal_expose (GdkEventExpose*);
static Glib::RefPtr<Gdk::Pixbuf> request_vertical_meter(int w, int h);
static Glib::RefPtr<Gdk::Pixbuf> *v_pixbuf_cache;
static int min_v_pixbuf_size;
static int max_v_pixbuf_size;
static Glib::RefPtr<Gdk::Pixbuf> request_horizontal_meter(int w, int h);
static Glib::RefPtr<Gdk::Pixbuf> *h_pixbuf_cache;
static int min_h_pixbuf_size;
static int max_h_pixbuf_size;
};
} /* namespace */
#endif /* __gtkmm2ext_fastmeter_h__ */
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