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931f20b0 JH |
1 | /* |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2013 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 | #include <extdef.h> | |
22 | ||
23 | #include <assert.h> | |
24 | #include <math.h> | |
25 | ||
26 | #include "trace.h" | |
27 | #include "view.h" | |
28 | ||
29 | namespace pv { | |
30 | namespace view { | |
31 | ||
fe08b6e8 | 32 | const QPen Trace::AxisPen(QColor(128, 128, 128, 64)); |
931f20b0 JH |
33 | const int Trace::LabelHitPadding = 2; |
34 | ||
35 | Trace::Trace(pv::SigSession &session, QString name) : | |
36 | _session(session), | |
37 | _name(name), | |
38 | _v_offset(0) | |
39 | { | |
40 | } | |
41 | ||
42 | QString Trace::get_name() const | |
43 | { | |
44 | return _name; | |
45 | } | |
46 | ||
47 | void Trace::set_name(QString name) | |
48 | { | |
49 | _name = name; | |
50 | } | |
51 | ||
52 | QColor Trace::get_colour() const | |
53 | { | |
54 | return _colour; | |
55 | } | |
56 | ||
57 | void Trace::set_colour(QColor colour) | |
58 | { | |
59 | _colour = colour; | |
60 | } | |
61 | ||
62 | int Trace::get_v_offset() const | |
63 | { | |
64 | return _v_offset; | |
65 | } | |
66 | ||
67 | void Trace::set_v_offset(int v_offset) | |
68 | { | |
69 | _v_offset = v_offset; | |
70 | } | |
71 | ||
01fd3263 | 72 | void Trace::set_view(pv::view::View *view) |
931f20b0 | 73 | { |
01fd3263 JH |
74 | assert(view); |
75 | _view = view; | |
76 | } | |
77 | ||
fe08b6e8 JH |
78 | void Trace::paint_back(QPainter &p, int left, int right) |
79 | { | |
80 | (void)p; | |
81 | (void)left; | |
82 | (void)right; | |
83 | } | |
84 | ||
85 | void Trace::paint_mid(QPainter &p, int left, int right) | |
86 | { | |
87 | (void)p; | |
88 | (void)left; | |
89 | (void)right; | |
90 | } | |
91 | ||
92 | void Trace::paint_fore(QPainter &p, int left, int right) | |
93 | { | |
94 | (void)p; | |
95 | (void)left; | |
96 | (void)right; | |
97 | } | |
98 | ||
01fd3263 JH |
99 | void Trace::paint_label(QPainter &p, int right, bool hover) |
100 | { | |
101 | assert(_view); | |
102 | const int y = _v_offset - _view->v_offset(); | |
103 | ||
931f20b0 JH |
104 | p.setBrush(_colour); |
105 | ||
106 | if (!enabled()) | |
107 | return; | |
108 | ||
109 | const QColor colour = get_colour(); | |
110 | ||
111 | compute_text_size(p); | |
01fd3263 | 112 | const QRectF label_rect = get_label_rect(right); |
931f20b0 JH |
113 | |
114 | // Paint the label | |
115 | const QPointF points[] = { | |
116 | label_rect.topLeft(), | |
117 | label_rect.topRight(), | |
118 | QPointF(right, y), | |
119 | label_rect.bottomRight(), | |
120 | label_rect.bottomLeft() | |
121 | }; | |
122 | ||
123 | const QPointF highlight_points[] = { | |
124 | QPointF(label_rect.left() + 1, label_rect.top() + 1), | |
125 | QPointF(label_rect.right(), label_rect.top() + 1), | |
126 | QPointF(right - 1, y), | |
127 | QPointF(label_rect.right(), label_rect.bottom() - 1), | |
128 | QPointF(label_rect.left() + 1, label_rect.bottom() - 1) | |
129 | }; | |
130 | ||
131 | if (selected()) { | |
132 | p.setPen(highlight_pen()); | |
133 | p.setBrush(Qt::transparent); | |
134 | p.drawPolygon(points, countof(points)); | |
135 | } | |
136 | ||
137 | p.setPen(Qt::transparent); | |
138 | p.setBrush(hover ? colour.lighter() : colour); | |
139 | p.drawPolygon(points, countof(points)); | |
140 | ||
141 | p.setPen(colour.lighter()); | |
142 | p.setBrush(Qt::transparent); | |
143 | p.drawPolygon(highlight_points, countof(highlight_points)); | |
144 | ||
145 | p.setPen(colour.darker()); | |
146 | p.setBrush(Qt::transparent); | |
147 | p.drawPolygon(points, countof(points)); | |
148 | ||
149 | // Paint the text | |
410f9c81 | 150 | p.setPen(get_text_colour()); |
931f20b0 JH |
151 | p.drawText(label_rect, Qt::AlignCenter | Qt::AlignVCenter, _name); |
152 | } | |
153 | ||
01fd3263 | 154 | bool Trace::pt_in_label_rect(int left, int right, const QPoint &point) |
931f20b0 JH |
155 | { |
156 | (void)left; | |
157 | ||
01fd3263 | 158 | const QRectF label = get_label_rect(right); |
931f20b0 JH |
159 | return QRectF( |
160 | QPointF(label.left() - LabelHitPadding, | |
161 | label.top() - LabelHitPadding), | |
162 | QPointF(right, label.bottom() + LabelHitPadding) | |
163 | ).contains(point); | |
164 | } | |
165 | ||
fe08b6e8 JH |
166 | int Trace::get_y() const |
167 | { | |
168 | return _v_offset - _view->v_offset(); | |
169 | } | |
170 | ||
410f9c81 JH |
171 | QColor Trace::get_text_colour() const |
172 | { | |
173 | return (_colour.lightness() > 64) ? Qt::black : Qt::white; | |
174 | } | |
175 | ||
fe08b6e8 JH |
176 | void Trace::paint_axis(QPainter &p, int y, int left, int right) |
177 | { | |
178 | p.setPen(AxisPen); | |
179 | p.drawLine(QPointF(left, y + 0.5f), QPointF(right, y + 0.5f)); | |
180 | } | |
181 | ||
931f20b0 JH |
182 | void Trace::compute_text_size(QPainter &p) |
183 | { | |
184 | _text_size = QSize( | |
185 | p.boundingRect(QRectF(), 0, _name).width(), | |
186 | p.boundingRect(QRectF(), 0, "Tg").height()); | |
187 | } | |
188 | ||
01fd3263 | 189 | QRectF Trace::get_label_rect(int right) |
931f20b0 JH |
190 | { |
191 | using pv::view::View; | |
192 | ||
01fd3263 JH |
193 | assert(_view); |
194 | const int y = _v_offset - _view->v_offset(); | |
195 | ||
931f20b0 JH |
196 | const QSizeF label_size( |
197 | _text_size.width() + View::LabelPadding.width() * 2, | |
198 | ceilf((_text_size.height() + View::LabelPadding.height() * 2) / 2) * 2); | |
199 | const float label_arrow_length = label_size.height() / 2; | |
200 | return QRectF( | |
201 | right - label_arrow_length - label_size.width() - 0.5, | |
202 | y + 0.5f - label_size.height() / 2, | |
203 | label_size.width(), label_size.height()); | |
204 | } | |
205 | ||
206 | } // namespace view | |
207 | } // namespace pv |