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 __push2_meter_h__
21 #define __push2_meter_h__
24 #include <boost/tuple/tuple.hpp>
25 #include <boost/tuple/tuple_comparison.hpp>
27 #include <cairomm/pattern.h>
28 #include <cairomm/region.h>
30 #include "canvas/item.h"
32 namespace ArdourSurface {
34 class Meter : public ArdourCanvas::Item {
42 long hold_cnt, unsigned long width, Orientation, int len=0,
43 int clr0=0x008800ff, int clr1=0x008800ff,
44 int clr2=0x00ff00ff, int clr3=0x00ff00ff,
45 int clr4=0xffaa00ff, int clr5=0xffaa00ff,
46 int clr6=0xffff00ff, int clr7=0xffff00ff,
47 int clr8=0xff0000ff, int clr9=0xff0000ff,
48 int bgc0=0x333333ff, int bgc1=0x444444ff,
49 int bgh0=0x991122ff, int bgh1=0x551111ff,
50 float stp0 = 55.0, // log_meter(-18);
51 float stp1 = 77.5, // log_meter(-9);
52 float stp2 = 92.5, // log_meter(-3); // 95.0, // log_meter(-2);
57 static void flush_pattern_cache();
59 void set (float level, float peak = -1);
62 float get_level() { return current_level; }
63 float get_user_level() { return current_user_level; }
64 float get_peak() { return current_peak; }
66 long hold_count() { return hold_cnt; }
67 void set_hold_count (long);
68 void set_highlight (bool);
69 bool get_highlight () { return highlight; }
71 void render (ArdourCanvas::Rect const &, Cairo::RefPtr<Cairo::Context>) const;
72 void compute_bounding_box() const;
76 Cairo::RefPtr<Cairo::Pattern> fgpattern;
77 Cairo::RefPtr<Cairo::Pattern> bgpattern;
87 Orientation orientation;
88 mutable Cairo::RectangleInt pixrect;
89 mutable Cairo::RectangleInt last_peak_rect;
92 unsigned long hold_cnt;
93 unsigned long hold_state;
97 float current_user_level;
100 void vertical_expose (ArdourCanvas::Rect const & area, Cairo::RefPtr<Cairo::Context> context) const;
101 void queue_vertical_redraw (float old_level);
103 void horizontal_expose (ArdourCanvas::Rect const & area, Cairo::RefPtr<Cairo::Context> context) const;
104 void queue_horizontal_redraw (float old_level);
106 static bool no_rgba_overlay;
108 static Cairo::RefPtr<Cairo::Pattern> generate_meter_pattern (
109 int, int, int *, float *, int, bool);
110 static Cairo::RefPtr<Cairo::Pattern> request_vertical_meter (
111 int, int, int *, float *, int);
112 static Cairo::RefPtr<Cairo::Pattern> request_horizontal_meter (
113 int, int, int *, float *, int);
115 static Cairo::RefPtr<Cairo::Pattern> generate_meter_background (
116 int, int, int *, bool, bool);
117 static Cairo::RefPtr<Cairo::Pattern> request_vertical_background (
118 int, int, int *, bool);
119 static Cairo::RefPtr<Cairo::Pattern> request_horizontal_background (
120 int, int, int *, bool);
122 struct Pattern10MapKey {
125 float stp0, float stp1, float stp2, float stp3,
126 int c0, int c1, int c2, int c3,
127 int c4, int c5, int c6, int c7,
128 int c8, int c9, int st
131 , stp(stp0, stp1, stp2, stp3)
132 , cols(c0, c1, c2, c3, c4, c5, c6, c7, c8, c9)
135 inline bool operator<(const Pattern10MapKey& rhs) const {
136 return (dim < rhs.dim)
137 || (dim == rhs.dim && stp < rhs.stp)
138 || (dim == rhs.dim && stp == rhs.stp && cols < rhs.cols)
139 || (dim == rhs.dim && stp == rhs.stp && cols == rhs.cols && style < rhs.style);
141 boost::tuple<int, int> dim;
142 boost::tuple<float, float, float, float> stp;
143 boost::tuple<int, int, int, int, int, int, int, int, int, int> cols;
146 typedef std::map<Pattern10MapKey, Cairo::RefPtr<Cairo::Pattern> > Pattern10Map;
148 struct PatternBgMapKey {
149 PatternBgMapKey (int w, int h, int c0, int c1, bool shade)
154 inline bool operator<(const PatternBgMapKey& rhs) const {
155 return (dim < rhs.dim) || (dim == rhs.dim && cols < rhs.cols) || (dim == rhs.dim && cols == rhs.cols && (sh && !rhs.sh));
157 boost::tuple<int, int> dim;
158 boost::tuple<int, int> cols;
161 typedef std::map<PatternBgMapKey, Cairo::RefPtr<Cairo::Pattern> > PatternBgMap;
163 static Pattern10Map vm_pattern_cache;
164 static PatternBgMap vb_pattern_cache;
165 static Pattern10Map hm_pattern_cache;
166 static PatternBgMap hb_pattern_cache;
167 static int min_pattern_metric_size; // min dimension for axis that displays the meter level
168 static int max_pattern_metric_size; // max dimension for axis that displays the meter level
173 #endif /* __push2_meter_h__ */