/*
- Copyright (C) 2003 Paul Davis
+ 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
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id$
*/
#ifndef __gtkmm2ext_fastmeter_h__
#define __gtkmm2ext_fastmeter_h__
+#include <map>
+#include <boost/tuple/tuple.hpp>
+#include <boost/tuple/tuple_comparison.hpp>
+#include <cairomm/pattern.h>
#include <gtkmm/drawingarea.h>
-#include <gdkmm/pixmap.h>
+#include <gdkmm/pixbuf.h>
namespace Gtkmm2ext {
class FastMeter : public Gtk::DrawingArea {
public:
- enum Orientation {
+ enum Orientation {
Horizontal,
Vertical
};
-
- FastMeter (long hold_cnt, unsigned long width, Orientation);
+
+ 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, float user_level=0.0f);
+
+ void set (float level);
void clear ();
float get_level() { return current_level; }
long hold_count() { return hold_cnt; }
void set_hold_count (long);
-
- static void set_horizontal_xpm (const char **xpm);
- static void set_vertical_xpm (const char **xpm);
-
- protected:
+
+protected:
bool on_expose_event (GdkEventExpose*);
void on_size_request (GtkRequisition*);
- void on_realize ();
+ void on_size_allocate (Gtk::Allocation&);
- private:
- static Glib::RefPtr<Gdk::Pixmap> h_pixmap;
- static Glib::RefPtr<Gdk::Bitmap> h_mask;
- static gint h_pixheight;
- static gint h_pixwidth;
+private:
- static Glib::RefPtr<Gdk::Pixmap> v_pixmap;
- static Glib::RefPtr<Gdk::Bitmap> v_mask;
- static gint v_pixheight;
- static gint v_pixwidth;
+ Cairo::RefPtr<Cairo::Pattern> pattern;
+ gint pixheight;
+ gint pixwidth;
+ int _clr0, _clr1, _clr2, _clr3;
Orientation orientation;
- Glib::RefPtr<Gdk::Pixmap> backing;
- Gdk::Rectangle pixrect;
+ GdkRectangle pixrect;
+ GdkRectangle last_peak_rect;
gint request_width;
gint request_height;
unsigned long hold_cnt;
float current_level;
float current_peak;
float current_user_level;
-
+
bool vertical_expose (GdkEventExpose*);
bool horizontal_expose (GdkEventExpose*);
+ void queue_vertical_redraw (const Glib::RefPtr<Gdk::Window>&, float);
+ void queue_horizontal_redraw (const Glib::RefPtr<Gdk::Window>&, float);
+
+ static Cairo::RefPtr<Cairo::Pattern> generate_meter_pattern (
+ int w, int h, int clr0, int clr1, int clr2, int clr3);
+ static Cairo::RefPtr<Cairo::Pattern> request_vertical_meter (
+ int w, int h, int clr0, int clr1, int clr2, int clr3);
+ static Cairo::RefPtr<Cairo::Pattern> request_horizontal_meter (
+ int w, int h, int clr0, int clr1, int clr2, int clr3);
+
+ struct PatternMapKey {
+ PatternMapKey (int w, int h, int c0, int c1, int c2, int c3)
+ : dim(w, h)
+ , cols(c0, c1, c2, c3)
+ {}
+ inline bool operator<(const PatternMapKey& rhs) const {
+ return (dim < rhs.dim) || (dim == rhs.dim && cols < rhs.cols);
+ }
+ boost::tuple<int, int> dim; // width, height
+ boost::tuple<int, int, int, int> cols; // c0, c1, c2, c3
+ };
+ typedef std::map<PatternMapKey, Cairo::RefPtr<Cairo::Pattern> > PatternMap;
+
+ static PatternMap v_pattern_cache;
+ static PatternMap h_pattern_cache;
+ static int min_pattern_metric_size; // min dimension for axis that displays the meter level
+ static int max_pattern_metric_size; // max dimension for axis that displays the meter level
};