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;
90 unsigned long hold_cnt;
91 unsigned long hold_state;
95 float current_user_level;
98 void vertical_expose (ArdourCanvas::Rect const & area, Cairo::RefPtr<Cairo::Context> context) const;
99 void queue_vertical_redraw (float old_level);
101 void horizontal_expose (ArdourCanvas::Rect const & area, Cairo::RefPtr<Cairo::Context> context) const;
102 void queue_horizontal_redraw (float old_level);
104 static bool no_rgba_overlay;
106 static Cairo::RefPtr<Cairo::Pattern> generate_meter_pattern (int, int, int *, float *, int, bool);
107 static Cairo::RefPtr<Cairo::Pattern> vertical_meter_pattern (int, int, int *, float *, int);
108 static Cairo::RefPtr<Cairo::Pattern> horizontal_meter_pattern (int, int, int *, float *, int);
110 static Cairo::RefPtr<Cairo::Pattern> generate_meter_background (int, int, int *, bool, bool);
111 static Cairo::RefPtr<Cairo::Pattern> vertical_background (int, int, int *, bool);
112 static Cairo::RefPtr<Cairo::Pattern> horizontal_background (int, int, int *, bool);
114 struct Pattern10MapKey {
117 float stp0, float stp1, float stp2, float stp3,
118 int c0, int c1, int c2, int c3,
119 int c4, int c5, int c6, int c7,
120 int c8, int c9, int st
123 , stp(stp0, stp1, stp2, stp3)
124 , cols(c0, c1, c2, c3, c4, c5, c6, c7, c8, c9)
127 inline bool operator<(const Pattern10MapKey& rhs) const {
128 return (dim < rhs.dim)
129 || (dim == rhs.dim && stp < rhs.stp)
130 || (dim == rhs.dim && stp == rhs.stp && cols < rhs.cols)
131 || (dim == rhs.dim && stp == rhs.stp && cols == rhs.cols && style < rhs.style);
133 boost::tuple<int, int> dim;
134 boost::tuple<float, float, float, float> stp;
135 boost::tuple<int, int, int, int, int, int, int, int, int, int> cols;
138 typedef std::map<Pattern10MapKey, Cairo::RefPtr<Cairo::Pattern> > Pattern10Map;
140 struct PatternBgMapKey {
141 PatternBgMapKey (int w, int h, int c0, int c1, bool shade)
146 inline bool operator<(const PatternBgMapKey& rhs) const {
147 return (dim < rhs.dim) || (dim == rhs.dim && cols < rhs.cols) || (dim == rhs.dim && cols == rhs.cols && (sh && !rhs.sh));
149 boost::tuple<int, int> dim;
150 boost::tuple<int, int> cols;
153 typedef std::map<PatternBgMapKey, Cairo::RefPtr<Cairo::Pattern> > PatternBgMap;
155 static Pattern10Map vm_pattern_cache;
156 static PatternBgMap vb_pattern_cache;
157 static Pattern10Map hm_pattern_cache;
158 static PatternBgMap hb_pattern_cache;
159 static int min_pattern_metric_size; // min dimension for axis that displays the meter level
160 static int max_pattern_metric_size; // max dimension for axis that displays the meter level
165 #endif /* __push2_meter_h__ */