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 "gtkmm2ext/cairo_widget.h"
29 #include "gtkmm2ext/visibility.h"
33 class LIBGTKMM2EXT_API FastMeter : public CairoWidget {
40 FastMeter (long hold_cnt, unsigned long width, Orientation, int len=0,
41 int clr0=0x008800ff, int clr1=0x008800ff,
42 int clr2=0x00ff00ff, int clr3=0x00ff00ff,
43 int clr4=0xffaa00ff, int clr5=0xffaa00ff,
44 int clr6=0xffff00ff, int clr7=0xffff00ff,
45 int clr8=0xff0000ff, int clr9=0xff0000ff,
46 int bgc0=0x333333ff, int bgc1=0x444444ff,
47 int bgh0=0x991122ff, int bgh1=0x551111ff,
48 float stp0 = 55.0, // log_meter(-18);
49 float stp1 = 77.5, // log_meter(-9);
50 float stp2 = 92.5, // log_meter(-3); // 95.0, // log_meter(-2);
54 virtual ~FastMeter ();
56 void set (float level, float peak = -1);
59 float get_level() { return current_level; }
60 float get_user_level() { return current_user_level; }
61 float get_peak() { return current_peak; }
63 long hold_count() { return hold_cnt; }
64 void set_hold_count (long);
65 void set_highlight (bool);
66 bool get_highlight () { return highlight; }
69 void render (cairo_t *, cairo_rectangle_t*);
70 void on_size_request (GtkRequisition*);
71 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 void vertical_expose (cairo_t*, cairo_rectangle_t*);
99 void vertical_size_request (GtkRequisition*);
100 void vertical_size_allocate (Gtk::Allocation&);
101 void queue_vertical_redraw (const Glib::RefPtr<Gdk::Window>&, float);
103 void horizontal_expose (cairo_t*, cairo_rectangle_t*);
104 void horizontal_size_request (GtkRequisition*);
105 void horizontal_size_allocate (Gtk::Allocation&);
106 void queue_horizontal_redraw (const Glib::RefPtr<Gdk::Window>&, float);
108 static bool no_rgba_overlay;
110 static Cairo::RefPtr<Cairo::Pattern> generate_meter_pattern (
111 int, int, int *, float *, int, bool);
112 static Cairo::RefPtr<Cairo::Pattern> request_vertical_meter (
113 int, int, int *, float *, int);
114 static Cairo::RefPtr<Cairo::Pattern> request_horizontal_meter (
115 int, int, int *, float *, int);
117 static Cairo::RefPtr<Cairo::Pattern> generate_meter_background (
118 int, int, int *, bool, bool);
119 static Cairo::RefPtr<Cairo::Pattern> request_vertical_background (
120 int, int, int *, bool);
121 static Cairo::RefPtr<Cairo::Pattern> request_horizontal_background (
122 int, int, int *, bool);
124 struct Pattern10MapKey {
127 float stp0, float stp1, float stp2, float stp3,
128 int c0, int c1, int c2, int c3,
129 int c4, int c5, int c6, int c7,
130 int c8, int c9, int st
133 , stp(stp0, stp1, stp2, stp3)
134 , cols(c0, c1, c2, c3, c4, c5, c6, c7, c8, c9)
137 inline bool operator<(const Pattern10MapKey& rhs) const {
138 return (dim < rhs.dim)
139 || (dim == rhs.dim && stp < rhs.stp)
140 || (dim == rhs.dim && stp == rhs.stp && cols < rhs.cols)
141 || (dim == rhs.dim && stp == rhs.stp && cols == rhs.cols && style < rhs.style);
143 boost::tuple<int, int> dim;
144 boost::tuple<float, float, float, float> stp;
145 boost::tuple<int, int, int, int, int, int, int, int, int, int> cols;
148 typedef std::map<Pattern10MapKey, Cairo::RefPtr<Cairo::Pattern> > Pattern10Map;
150 struct PatternBgMapKey {
151 PatternBgMapKey (int w, int h, int c0, int c1, bool shade)
156 inline bool operator<(const PatternBgMapKey& rhs) const {
157 return (dim < rhs.dim) || (dim == rhs.dim && cols < rhs.cols) || (dim == rhs.dim && cols == rhs.cols && (sh && !rhs.sh));
159 boost::tuple<int, int> dim;
160 boost::tuple<int, int> cols;
163 typedef std::map<PatternBgMapKey, Cairo::RefPtr<Cairo::Pattern> > PatternBgMap;
165 static Pattern10Map vm_pattern_cache;
166 static PatternBgMap vb_pattern_cache;
167 static Pattern10Map hm_pattern_cache;
168 static PatternBgMap hb_pattern_cache;
169 static int min_pattern_metric_size; // min dimension for axis that displays the meter level
170 static int max_pattern_metric_size; // max dimension for axis that displays the meter level
176 #endif /* __gtkmm2ext_fastmeter_h__ */