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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" | |
91e8bf08 | 27 | #include "tracepalette.h" |
931f20b0 JH |
28 | #include "view.h" |
29 | ||
91e8bf08 | 30 | #include <pv/widgets/colourbutton.h> |
569d1e41 | 31 | |
931f20b0 JH |
32 | namespace pv { |
33 | namespace view { | |
34 | ||
fe08b6e8 | 35 | const QPen Trace::AxisPen(QColor(128, 128, 128, 64)); |
931f20b0 JH |
36 | const int Trace::LabelHitPadding = 2; |
37 | ||
38 | Trace::Trace(pv::SigSession &session, QString name) : | |
39 | _session(session), | |
40 | _name(name), | |
41 | _v_offset(0) | |
42 | { | |
43 | } | |
44 | ||
45 | QString Trace::get_name() const | |
46 | { | |
47 | return _name; | |
48 | } | |
49 | ||
50 | void Trace::set_name(QString name) | |
51 | { | |
52 | _name = name; | |
53 | } | |
54 | ||
55 | QColor Trace::get_colour() const | |
56 | { | |
57 | return _colour; | |
58 | } | |
59 | ||
60 | void Trace::set_colour(QColor colour) | |
61 | { | |
62 | _colour = colour; | |
63 | } | |
64 | ||
65 | int Trace::get_v_offset() const | |
66 | { | |
67 | return _v_offset; | |
68 | } | |
69 | ||
70 | void Trace::set_v_offset(int v_offset) | |
71 | { | |
72 | _v_offset = v_offset; | |
73 | } | |
74 | ||
01fd3263 | 75 | void Trace::set_view(pv::view::View *view) |
931f20b0 | 76 | { |
01fd3263 JH |
77 | assert(view); |
78 | _view = view; | |
79 | } | |
80 | ||
fe08b6e8 JH |
81 | void Trace::paint_back(QPainter &p, int left, int right) |
82 | { | |
83 | (void)p; | |
84 | (void)left; | |
85 | (void)right; | |
86 | } | |
87 | ||
88 | void Trace::paint_mid(QPainter &p, int left, int right) | |
89 | { | |
90 | (void)p; | |
91 | (void)left; | |
92 | (void)right; | |
93 | } | |
94 | ||
95 | void Trace::paint_fore(QPainter &p, int left, int right) | |
96 | { | |
97 | (void)p; | |
98 | (void)left; | |
99 | (void)right; | |
100 | } | |
101 | ||
01fd3263 JH |
102 | void Trace::paint_label(QPainter &p, int right, bool hover) |
103 | { | |
104 | assert(_view); | |
105 | const int y = _v_offset - _view->v_offset(); | |
106 | ||
931f20b0 JH |
107 | p.setBrush(_colour); |
108 | ||
109 | if (!enabled()) | |
110 | return; | |
111 | ||
112 | const QColor colour = get_colour(); | |
113 | ||
114 | compute_text_size(p); | |
01fd3263 | 115 | const QRectF label_rect = get_label_rect(right); |
931f20b0 JH |
116 | |
117 | // Paint the label | |
118 | const QPointF points[] = { | |
119 | label_rect.topLeft(), | |
120 | label_rect.topRight(), | |
121 | QPointF(right, y), | |
122 | label_rect.bottomRight(), | |
123 | label_rect.bottomLeft() | |
124 | }; | |
125 | ||
126 | const QPointF highlight_points[] = { | |
127 | QPointF(label_rect.left() + 1, label_rect.top() + 1), | |
128 | QPointF(label_rect.right(), label_rect.top() + 1), | |
129 | QPointF(right - 1, y), | |
130 | QPointF(label_rect.right(), label_rect.bottom() - 1), | |
131 | QPointF(label_rect.left() + 1, label_rect.bottom() - 1) | |
132 | }; | |
133 | ||
134 | if (selected()) { | |
135 | p.setPen(highlight_pen()); | |
136 | p.setBrush(Qt::transparent); | |
137 | p.drawPolygon(points, countof(points)); | |
138 | } | |
139 | ||
140 | p.setPen(Qt::transparent); | |
141 | p.setBrush(hover ? colour.lighter() : colour); | |
142 | p.drawPolygon(points, countof(points)); | |
143 | ||
144 | p.setPen(colour.lighter()); | |
145 | p.setBrush(Qt::transparent); | |
146 | p.drawPolygon(highlight_points, countof(highlight_points)); | |
147 | ||
148 | p.setPen(colour.darker()); | |
149 | p.setBrush(Qt::transparent); | |
150 | p.drawPolygon(points, countof(points)); | |
151 | ||
152 | // Paint the text | |
410f9c81 | 153 | p.setPen(get_text_colour()); |
931f20b0 JH |
154 | p.drawText(label_rect, Qt::AlignCenter | Qt::AlignVCenter, _name); |
155 | } | |
156 | ||
01fd3263 | 157 | bool Trace::pt_in_label_rect(int left, int right, const QPoint &point) |
931f20b0 JH |
158 | { |
159 | (void)left; | |
160 | ||
01fd3263 | 161 | const QRectF label = get_label_rect(right); |
931f20b0 JH |
162 | return QRectF( |
163 | QPointF(label.left() - LabelHitPadding, | |
164 | label.top() - LabelHitPadding), | |
165 | QPointF(right, label.bottom() + LabelHitPadding) | |
166 | ).contains(point); | |
167 | } | |
168 | ||
9b6378f1 JH |
169 | QMenu* Trace::create_context_menu(QWidget *parent) |
170 | { | |
171 | QMenu *const menu = SelectableItem::create_context_menu(parent); | |
172 | ||
9b6378f1 JH |
173 | return menu; |
174 | } | |
175 | ||
569d1e41 JH |
176 | pv::widgets::Popup* Trace::create_popup(QWidget *parent) |
177 | { | |
178 | using pv::widgets::Popup; | |
179 | Popup *const popup = new Popup(parent); | |
180 | QFormLayout *const form = new QFormLayout(popup); | |
181 | popup->setLayout(form); | |
182 | populate_popup_form(popup, form); | |
183 | return popup; | |
184 | } | |
185 | ||
fe08b6e8 JH |
186 | int Trace::get_y() const |
187 | { | |
188 | return _v_offset - _view->v_offset(); | |
189 | } | |
190 | ||
410f9c81 JH |
191 | QColor Trace::get_text_colour() const |
192 | { | |
193 | return (_colour.lightness() > 64) ? Qt::black : Qt::white; | |
194 | } | |
195 | ||
fe08b6e8 JH |
196 | void Trace::paint_axis(QPainter &p, int y, int left, int right) |
197 | { | |
198 | p.setPen(AxisPen); | |
199 | p.drawLine(QPointF(left, y + 0.5f), QPointF(right, y + 0.5f)); | |
200 | } | |
201 | ||
91e8bf08 JH |
202 | void Trace::add_colour_option(QWidget *parent, QFormLayout *form) |
203 | { | |
204 | using pv::widgets::ColourButton; | |
205 | ||
206 | ColourButton *const colour_button = new ColourButton( | |
207 | TracePalette::Rows, TracePalette::Cols, parent); | |
208 | colour_button->set_palette(TracePalette::Colours); | |
209 | colour_button->set_colour(_colour); | |
210 | connect(colour_button, SIGNAL(selected(const QColor&)), | |
211 | this, SLOT(on_colour_changed(const QColor&))); | |
212 | ||
213 | form->addRow(tr("Colour"), colour_button); | |
214 | } | |
215 | ||
569d1e41 JH |
216 | void Trace::populate_popup_form(QWidget *parent, QFormLayout *form) |
217 | { | |
68456dab JH |
218 | QLineEdit *const name_edit = new QLineEdit(parent); |
219 | name_edit->setText(_name); | |
220 | connect(name_edit, SIGNAL(textChanged(const QString&)), | |
221 | this, SLOT(on_text_changed(const QString&))); | |
222 | form->addRow(tr("Name"), name_edit); | |
91e8bf08 JH |
223 | |
224 | add_colour_option(parent, form); | |
569d1e41 JH |
225 | } |
226 | ||
931f20b0 JH |
227 | void Trace::compute_text_size(QPainter &p) |
228 | { | |
229 | _text_size = QSize( | |
230 | p.boundingRect(QRectF(), 0, _name).width(), | |
231 | p.boundingRect(QRectF(), 0, "Tg").height()); | |
232 | } | |
233 | ||
01fd3263 | 234 | QRectF Trace::get_label_rect(int right) |
931f20b0 JH |
235 | { |
236 | using pv::view::View; | |
237 | ||
01fd3263 | 238 | assert(_view); |
01fd3263 | 239 | |
931f20b0 JH |
240 | const QSizeF label_size( |
241 | _text_size.width() + View::LabelPadding.width() * 2, | |
242 | ceilf((_text_size.height() + View::LabelPadding.height() * 2) / 2) * 2); | |
243 | const float label_arrow_length = label_size.height() / 2; | |
244 | return QRectF( | |
245 | right - label_arrow_length - label_size.width() - 0.5, | |
f39936fb | 246 | get_y() + 0.5f - label_size.height() / 2, |
931f20b0 JH |
247 | label_size.width(), label_size.height()); |
248 | } | |
249 | ||
68456dab JH |
250 | void Trace::on_text_changed(const QString &text) |
251 | { | |
252 | set_name(text); | |
253 | text_changed(); | |
254 | } | |
9b6378f1 | 255 | |
91e8bf08 JH |
256 | void Trace::on_colour_changed(const QColor &colour) |
257 | { | |
258 | set_colour(colour); | |
259 | colour_changed(); | |
260 | } | |
261 | ||
931f20b0 JH |
262 | } // namespace view |
263 | } // namespace pv |