2 Copyright (C) 2003 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __gtkmm2ext_fastmeter_h__
21 #define __gtkmm2ext_fastmeter_h__
24 #include <boost/tuple/tuple.hpp>
25 #include <boost/tuple/tuple_comparison.hpp>
26 #include <cairomm/pattern.h>
27 #include <gtkmm/drawingarea.h>
28 #include <gdkmm/pixbuf.h>
32 class FastMeter : public Gtk::DrawingArea {
39 FastMeter (long hold_cnt, unsigned long width, Orientation, int len=0,
40 int clr0=0x008800ff, int clr1=0x008800ff,
41 int clr2=0x00ff00ff, int clr3=0x00ff00ff,
42 int clr4=0xffaa00ff, int clr5=0xffaa00ff,
43 int clr6=0xffff00ff, int clr7=0xffff00ff,
44 int clr8=0xff0000ff, int clr9=0xff0000ff,
45 int bgc0=0x333333ff, int bgc1=0x444444ff,
46 int bgh0=0x991122ff, int bgh1=0x551111ff,
47 float stp0 = 55.0, // log_meter(-18);
48 float stp1 = 77.5, // log_meter(-9);
49 float stp2 = 92.5, // log_meter(-3); // 95.0, // log_meter(-2);
53 virtual ~FastMeter ();
55 void set (float level, float peak = -1);
58 float get_level() { return current_level; }
59 float get_user_level() { return current_user_level; }
60 float get_peak() { return current_peak; }
62 long hold_count() { return hold_cnt; }
63 void set_hold_count (long);
64 void set_highlight (bool);
65 bool get_highlight () { return highlight; }
68 bool on_expose_event (GdkEventExpose*);
69 void on_size_request (GtkRequisition*);
70 void on_size_allocate (Gtk::Allocation&);
74 Cairo::RefPtr<Cairo::Pattern> fgpattern;
75 Cairo::RefPtr<Cairo::Pattern> bgpattern;
85 Orientation orientation;
87 GdkRectangle last_peak_rect;
90 unsigned long hold_cnt;
91 unsigned long hold_state;
95 float current_user_level;
98 bool vertical_expose (GdkEventExpose*);
99 void queue_vertical_redraw (const Glib::RefPtr<Gdk::Window>&, float);
101 static bool no_rgba_overlay;
103 static Cairo::RefPtr<Cairo::Pattern> generate_meter_pattern (
104 int, int, int *, float *, int);
105 static Cairo::RefPtr<Cairo::Pattern> request_vertical_meter (
106 int, int, int *, float *, int);
108 static Cairo::RefPtr<Cairo::Pattern> generate_meter_background (
109 int, int, int *, bool);
110 static Cairo::RefPtr<Cairo::Pattern> request_vertical_background (
111 int, int, int *, bool);
113 struct Pattern10MapKey {
116 float stp0, float stp1, float stp2, float stp3,
117 int c0, int c1, int c2, int c3,
118 int c4, int c5, int c6, int c7,
119 int c8, int c9, int st
122 , stp(stp0, stp1, stp2, stp3)
123 , cols(c0, c1, c2, c3, c4, c5, c6, c7, c8, c9)
126 inline bool operator<(const Pattern10MapKey& rhs) const {
127 return (dim < rhs.dim)
128 || (dim == rhs.dim && stp < rhs.stp)
129 || (dim == rhs.dim && stp == rhs.stp && cols < rhs.cols)
130 || (dim == rhs.dim && stp == rhs.stp && cols == rhs.cols && style < rhs.style);
132 boost::tuple<int, int> dim;
133 boost::tuple<float, float, float, float> stp;
134 boost::tuple<int, int, int, int, int, int, int, int, int, int> cols;
137 typedef std::map<Pattern10MapKey, Cairo::RefPtr<Cairo::Pattern> > Pattern10Map;
139 struct PatternBgMapKey {
140 PatternBgMapKey (int w, int h, int c0, int c1)
144 inline bool operator<(const PatternBgMapKey& rhs) const {
145 return (dim < rhs.dim) || (dim == rhs.dim && cols < rhs.cols);
147 boost::tuple<int, int> dim;
148 boost::tuple<int, int> cols;
150 typedef std::map<PatternBgMapKey, Cairo::RefPtr<Cairo::Pattern> > PatternBgMap;
152 static Pattern10Map vm_pattern_cache;
153 static PatternBgMap vb_pattern_cache;
154 static int min_pattern_metric_size; // min dimension for axis that displays the meter level
155 static int max_pattern_metric_size; // max dimension for axis that displays the meter level
161 #endif /* __gtkmm2ext_fastmeter_h__ */