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3195aeb6 JH |
1 | /* |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | extern "C" { | |
22 | #include <libsigrokdecode/libsigrokdecode.h> | |
23 | } | |
24 | ||
1ae79b11 JH |
25 | #include <extdef.h> |
26 | ||
27 | #include <algorithm> | |
28 | ||
b213ef09 JH |
29 | #include <boost/foreach.hpp> |
30 | ||
9472f447 JH |
31 | #include <QPainter> |
32 | ||
3195aeb6 JH |
33 | #include "annotation.h" |
34 | ||
3195aeb6 JH |
35 | using namespace std; |
36 | ||
37 | namespace pv { | |
38 | namespace view { | |
39 | namespace decode { | |
40 | ||
1ae79b11 | 41 | const double Annotation::EndCapWidth = 5; |
ea47a30c | 42 | const int Annotation::DrawPadding = 100; |
1ae79b11 | 43 | |
f9abdc01 JH |
44 | const QColor Annotation::Colours[7] = { |
45 | QColor(0xFC, 0xE9, 0x4F), // Light Butter | |
46 | QColor(0xFC, 0xAF, 0x3E), // Light Orange | |
47 | QColor(0xE9, 0xB9, 0x6E), // Light Chocolate | |
48 | QColor(0x8A, 0xE2, 0x34), // Light Green | |
49 | QColor(0x72, 0x9F, 0xCF), // Light Blue | |
50 | QColor(0xAD, 0x7F, 0xA8), // Light Plum | |
51 | QColor(0xEF, 0x29, 0x29) // Light Red | |
52 | }; | |
53 | ||
3195aeb6 JH |
54 | Annotation::Annotation(const srd_proto_data *const pdata) : |
55 | _start_sample(pdata->start_sample), | |
88cd7da0 | 56 | _end_sample(pdata->end_sample) |
3195aeb6 | 57 | { |
88cd7da0 JH |
58 | assert(pdata); |
59 | const srd_proto_data_annotation *const pda = | |
60 | (const srd_proto_data_annotation*)pdata->data; | |
61 | assert(pda); | |
62 | ||
3248fcde JH |
63 | _format = pda->ann_format; |
64 | ||
88cd7da0 | 65 | const char *const *annotations = (char**)pda->ann_text; |
3195aeb6 JH |
66 | while(*annotations) { |
67 | _annotations.push_back(QString(*annotations)); | |
68 | annotations++; | |
69 | } | |
70 | } | |
71 | ||
a007f5ad JH |
72 | uint64_t Annotation::start_sample() const |
73 | { | |
74 | return _start_sample; | |
75 | } | |
76 | ||
77 | uint64_t Annotation::end_sample() const | |
78 | { | |
79 | return _end_sample; | |
80 | } | |
81 | ||
5dfeb70f | 82 | void Annotation::paint(QPainter &p, QColor text_color, int h, |
f9abdc01 JH |
83 | int left, int right, double samples_per_pixel, double pixels_offset, |
84 | int y) | |
9472f447 | 85 | { |
9472f447 JH |
86 | const double start = _start_sample / samples_per_pixel - |
87 | pixels_offset; | |
88 | const double end = _end_sample / samples_per_pixel - | |
89 | pixels_offset; | |
f9abdc01 JH |
90 | const QColor fill = Colours[(_format * (countof(Colours) / 2 + 1)) % |
91 | countof(Colours)]; | |
92 | const QColor outline(fill.darker()); | |
9472f447 | 93 | |
ea47a30c | 94 | if (start > right + DrawPadding || end < left - DrawPadding) |
9472f447 JH |
95 | return; |
96 | ||
ea47a30c JH |
97 | if (_start_sample == _end_sample) |
98 | draw_instant(p, fill, outline, text_color, h, | |
99 | start, y); | |
100 | else | |
101 | draw_range(p, fill, outline, text_color, h, | |
102 | start, end, y); | |
103 | } | |
104 | ||
105 | void Annotation::draw_instant(QPainter &p, QColor fill, QColor outline, | |
106 | QColor text_color, int h, double x, int y) | |
107 | { | |
108 | const QString text = _annotations.empty() ? | |
109 | QString() : _annotations.back(); | |
110 | const double w = min(p.boundingRect(QRectF(), 0, text).width(), | |
111 | 0.0) + h; | |
112 | const QRectF rect(x - w / 2, y - h / 2, w, h); | |
113 | ||
114 | p.setPen(outline); | |
115 | p.setBrush(fill); | |
116 | p.drawRoundedRect(rect, h / 2, h / 2); | |
117 | ||
118 | p.setPen(text_color); | |
119 | p.drawText(rect, Qt::AlignCenter | Qt::AlignVCenter, text); | |
120 | } | |
121 | ||
122 | void Annotation::draw_range(QPainter &p, QColor fill, QColor outline, | |
123 | QColor text_color, int h, double start, double end, int y) | |
124 | { | |
42410f2c JH |
125 | const double top = y + .5 - h / 2; |
126 | const double bottom = y + .5 + h / 2; | |
127 | ||
128 | p.setPen(outline); | |
129 | p.setBrush(fill); | |
130 | ||
131 | // If the two ends are within 1 pixel, draw a vertical line | |
132 | if (start + 1.0 > end) | |
133 | { | |
134 | p.drawLine(QPointF(start, top), QPointF(start, bottom)); | |
135 | return; | |
136 | } | |
137 | ||
1ae79b11 JH |
138 | const double cap_width = min((end - start) / 2, EndCapWidth); |
139 | ||
140 | QPointF pts[] = { | |
141 | QPointF(start, y + .5f), | |
42410f2c JH |
142 | QPointF(start + cap_width, top), |
143 | QPointF(end - cap_width, top), | |
1ae79b11 | 144 | QPointF(end, y + .5f), |
42410f2c JH |
145 | QPointF(end - cap_width, bottom), |
146 | QPointF(start + cap_width, bottom) | |
1ae79b11 | 147 | }; |
9472f447 | 148 | |
1ae79b11 | 149 | p.drawConvexPolygon(pts, countof(pts)); |
9472f447 | 150 | |
bb4c6769 JH |
151 | if (_annotations.empty()) |
152 | return; | |
153 | ||
154 | QRectF rect(start + cap_width, y - h / 2, | |
155 | end - start - cap_width * 2, h); | |
156 | p.setPen(text_color); | |
157 | ||
158 | // Try to find an annotation that will fit | |
159 | QString best_annotation; | |
160 | int best_width = 0; | |
161 | ||
162 | BOOST_FOREACH(QString &a, _annotations) { | |
163 | const int w = p.boundingRect(QRectF(), 0, a).width(); | |
164 | if (w <= rect.width() && w > best_width) | |
165 | best_annotation = a, best_width = w; | |
1ae79b11 | 166 | } |
bb4c6769 JH |
167 | |
168 | if (best_annotation.isEmpty()) | |
169 | best_annotation = _annotations.back(); | |
170 | ||
171 | // If not ellide the last in the list | |
172 | p.drawText(rect, Qt::AlignCenter, p.fontMetrics().elidedText( | |
173 | best_annotation, Qt::ElideRight, rect.width())); | |
9472f447 JH |
174 | } |
175 | ||
3195aeb6 JH |
176 | } // namespace decode |
177 | } // namespace view | |
178 | } // namespace pv |