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&);
73 Cairo::RefPtr<Cairo::Pattern> fgpattern;
74 Cairo::RefPtr<Cairo::Pattern> bgpattern;
84 Orientation orientation;
86 GdkRectangle last_peak_rect;
89 unsigned long hold_cnt;
90 unsigned long hold_state;
94 float current_user_level;
97 bool vertical_expose (GdkEventExpose*);
98 void vertical_size_request (GtkRequisition*);
99 void vertical_size_allocate (Gtk::Allocation&);
100 void queue_vertical_redraw (const Glib::RefPtr<Gdk::Window>&, float);
102 bool horizontal_expose (GdkEventExpose*);
103 void horizontal_size_request (GtkRequisition*);
104 void horizontal_size_allocate (Gtk::Allocation&);
105 void queue_horizontal_redraw (const Glib::RefPtr<Gdk::Window>&, float);
107 static bool no_rgba_overlay;
109 static Cairo::RefPtr<Cairo::Pattern> generate_meter_pattern (
110 int, int, int *, float *, int, bool);
111 static Cairo::RefPtr<Cairo::Pattern> request_vertical_meter (
112 int, int, int *, float *, int);
113 static Cairo::RefPtr<Cairo::Pattern> request_horizontal_meter (
114 int, int, int *, float *, int);
116 static Cairo::RefPtr<Cairo::Pattern> generate_meter_background (
117 int, int, int *, bool, bool);
118 static Cairo::RefPtr<Cairo::Pattern> request_vertical_background (
119 int, int, int *, bool);
120 static Cairo::RefPtr<Cairo::Pattern> request_horizontal_background (
121 int, int, int *, bool);
123 struct Pattern10MapKey {
126 float stp0, float stp1, float stp2, float stp3,
127 int c0, int c1, int c2, int c3,
128 int c4, int c5, int c6, int c7,
129 int c8, int c9, int st
132 , stp(stp0, stp1, stp2, stp3)
133 , cols(c0, c1, c2, c3, c4, c5, c6, c7, c8, c9)
136 inline bool operator<(const Pattern10MapKey& rhs) const {
137 return (dim < rhs.dim)
138 || (dim == rhs.dim && stp < rhs.stp)
139 || (dim == rhs.dim && stp == rhs.stp && cols < rhs.cols)
140 || (dim == rhs.dim && stp == rhs.stp && cols == rhs.cols && style < rhs.style);
142 boost::tuple<int, int> dim;
143 boost::tuple<float, float, float, float> stp;
144 boost::tuple<int, int, int, int, int, int, int, int, int, int> cols;
147 typedef std::map<Pattern10MapKey, Cairo::RefPtr<Cairo::Pattern> > Pattern10Map;
149 struct PatternBgMapKey {
150 PatternBgMapKey (int w, int h, int c0, int c1, bool shade)
155 inline bool operator<(const PatternBgMapKey& rhs) const {
156 return (dim < rhs.dim) || (dim == rhs.dim && cols < rhs.cols) || (dim == rhs.dim && cols == rhs.cols && (sh && !rhs.sh));
158 boost::tuple<int, int> dim;
159 boost::tuple<int, int> cols;
162 typedef std::map<PatternBgMapKey, Cairo::RefPtr<Cairo::Pattern> > PatternBgMap;
164 static Pattern10Map vm_pattern_cache;
165 static PatternBgMap vb_pattern_cache;
166 static Pattern10Map hm_pattern_cache;
167 static PatternBgMap hb_pattern_cache;
168 static int min_pattern_metric_size; // min dimension for axis that displays the meter level
169 static int max_pattern_metric_size; // max dimension for axis that displays the meter level
175 #endif /* __gtkmm2ext_fastmeter_h__ */