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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 <QFormLayout> | |
27 | #include <QLineEdit> | |
28 | ||
29 | #include "trace.h" | |
30 | #include "tracepalette.h" | |
31 | #include "view.h" | |
32 | ||
33 | #include <pv/widgets/colourbutton.h> | |
34 | ||
35 | namespace pv { | |
36 | namespace view { | |
37 | ||
38 | const QPen Trace::AxisPen(QColor(128, 128, 128, 64)); | |
39 | const int Trace::LabelHitPadding = 2; | |
40 | ||
41 | Trace::Trace(pv::SigSession &session, QString name) : | |
42 | _session(session), | |
43 | _name(name), | |
44 | _v_offset(0) | |
45 | { | |
46 | } | |
47 | ||
48 | QString Trace::get_name() const | |
49 | { | |
50 | return _name; | |
51 | } | |
52 | ||
53 | void Trace::set_name(QString name) | |
54 | { | |
55 | _name = name; | |
56 | } | |
57 | ||
58 | QColor Trace::get_colour() const | |
59 | { | |
60 | return _colour; | |
61 | } | |
62 | ||
63 | void Trace::set_colour(QColor colour) | |
64 | { | |
65 | _colour = colour; | |
66 | } | |
67 | ||
68 | int Trace::get_v_offset() const | |
69 | { | |
70 | return _v_offset; | |
71 | } | |
72 | ||
73 | void Trace::set_v_offset(int v_offset) | |
74 | { | |
75 | _v_offset = v_offset; | |
76 | } | |
77 | ||
78 | void Trace::set_view(pv::view::View *view) | |
79 | { | |
80 | assert(view); | |
81 | _view = view; | |
82 | } | |
83 | ||
84 | void Trace::paint_back(QPainter &p, int left, int right) | |
85 | { | |
86 | (void)p; | |
87 | (void)left; | |
88 | (void)right; | |
89 | } | |
90 | ||
91 | void Trace::paint_mid(QPainter &p, int left, int right) | |
92 | { | |
93 | (void)p; | |
94 | (void)left; | |
95 | (void)right; | |
96 | } | |
97 | ||
98 | void Trace::paint_fore(QPainter &p, int left, int right) | |
99 | { | |
100 | (void)p; | |
101 | (void)left; | |
102 | (void)right; | |
103 | } | |
104 | ||
105 | void Trace::paint_label(QPainter &p, int right, bool hover) | |
106 | { | |
107 | assert(_view); | |
108 | const int y = _v_offset - _view->v_offset(); | |
109 | ||
110 | p.setBrush(_colour); | |
111 | ||
112 | if (!enabled()) | |
113 | return; | |
114 | ||
115 | const QColor colour = get_colour(); | |
116 | ||
117 | compute_text_size(p); | |
118 | const QRectF label_rect = get_label_rect(right); | |
119 | ||
120 | // Paint the label | |
121 | const QPointF points[] = { | |
122 | label_rect.topLeft(), | |
123 | label_rect.topRight(), | |
124 | QPointF(right, y), | |
125 | label_rect.bottomRight(), | |
126 | label_rect.bottomLeft() | |
127 | }; | |
128 | ||
129 | const QPointF highlight_points[] = { | |
130 | QPointF(label_rect.left() + 1, label_rect.top() + 1), | |
131 | QPointF(label_rect.right(), label_rect.top() + 1), | |
132 | QPointF(right - 1, y), | |
133 | QPointF(label_rect.right(), label_rect.bottom() - 1), | |
134 | QPointF(label_rect.left() + 1, label_rect.bottom() - 1) | |
135 | }; | |
136 | ||
137 | if (selected()) { | |
138 | p.setPen(highlight_pen()); | |
139 | p.setBrush(Qt::transparent); | |
140 | p.drawPolygon(points, countof(points)); | |
141 | } | |
142 | ||
143 | p.setPen(Qt::transparent); | |
144 | p.setBrush(hover ? colour.lighter() : colour); | |
145 | p.drawPolygon(points, countof(points)); | |
146 | ||
147 | p.setPen(colour.lighter()); | |
148 | p.setBrush(Qt::transparent); | |
149 | p.drawPolygon(highlight_points, countof(highlight_points)); | |
150 | ||
151 | p.setPen(colour.darker()); | |
152 | p.setBrush(Qt::transparent); | |
153 | p.drawPolygon(points, countof(points)); | |
154 | ||
155 | // Paint the text | |
156 | p.setPen(get_text_colour()); | |
157 | p.drawText(label_rect, Qt::AlignCenter | Qt::AlignVCenter, _name); | |
158 | } | |
159 | ||
160 | bool Trace::pt_in_label_rect(int left, int right, const QPoint &point) | |
161 | { | |
162 | (void)left; | |
163 | ||
164 | const QRectF label = get_label_rect(right); | |
165 | return QRectF( | |
166 | QPointF(label.left() - LabelHitPadding, | |
167 | label.top() - LabelHitPadding), | |
168 | QPointF(right, label.bottom() + LabelHitPadding) | |
169 | ).contains(point); | |
170 | } | |
171 | ||
172 | QMenu* Trace::create_context_menu(QWidget *parent) | |
173 | { | |
174 | QMenu *const menu = SelectableItem::create_context_menu(parent); | |
175 | ||
176 | return menu; | |
177 | } | |
178 | ||
179 | pv::widgets::Popup* Trace::create_popup(QWidget *parent) | |
180 | { | |
181 | using pv::widgets::Popup; | |
182 | Popup *const popup = new Popup(parent); | |
183 | QFormLayout *const form = new QFormLayout(popup); | |
184 | popup->setLayout(form); | |
185 | populate_popup_form(popup, form); | |
186 | return popup; | |
187 | } | |
188 | ||
189 | int Trace::get_y() const | |
190 | { | |
191 | return _v_offset - _view->v_offset(); | |
192 | } | |
193 | ||
194 | QColor Trace::get_text_colour() const | |
195 | { | |
196 | return (_colour.lightness() > 64) ? Qt::black : Qt::white; | |
197 | } | |
198 | ||
199 | void Trace::paint_axis(QPainter &p, int y, int left, int right) | |
200 | { | |
201 | p.setPen(AxisPen); | |
202 | p.drawLine(QPointF(left, y + 0.5f), QPointF(right, y + 0.5f)); | |
203 | } | |
204 | ||
205 | void Trace::add_colour_option(QWidget *parent, QFormLayout *form) | |
206 | { | |
207 | using pv::widgets::ColourButton; | |
208 | ||
209 | ColourButton *const colour_button = new ColourButton( | |
210 | TracePalette::Rows, TracePalette::Cols, parent); | |
211 | colour_button->set_palette(TracePalette::Colours); | |
212 | colour_button->set_colour(_colour); | |
213 | connect(colour_button, SIGNAL(selected(const QColor&)), | |
214 | this, SLOT(on_colour_changed(const QColor&))); | |
215 | ||
216 | form->addRow(tr("Colour"), colour_button); | |
217 | } | |
218 | ||
219 | void Trace::populate_popup_form(QWidget *parent, QFormLayout *form) | |
220 | { | |
221 | QLineEdit *const name_edit = new QLineEdit(parent); | |
222 | name_edit->setText(_name); | |
223 | connect(name_edit, SIGNAL(textChanged(const QString&)), | |
224 | this, SLOT(on_text_changed(const QString&))); | |
225 | form->addRow(tr("Name"), name_edit); | |
226 | ||
227 | add_colour_option(parent, form); | |
228 | } | |
229 | ||
230 | void Trace::compute_text_size(QPainter &p) | |
231 | { | |
232 | _text_size = QSize( | |
233 | p.boundingRect(QRectF(), 0, _name).width(), | |
234 | p.boundingRect(QRectF(), 0, "Tg").height()); | |
235 | } | |
236 | ||
237 | QRectF Trace::get_label_rect(int right) | |
238 | { | |
239 | using pv::view::View; | |
240 | ||
241 | assert(_view); | |
242 | ||
243 | const QSizeF label_size( | |
244 | _text_size.width() + View::LabelPadding.width() * 2, | |
245 | ceilf((_text_size.height() + View::LabelPadding.height() * 2) / 2) * 2); | |
246 | const float label_arrow_length = label_size.height() / 2; | |
247 | return QRectF( | |
248 | right - label_arrow_length - label_size.width() - 0.5, | |
249 | get_y() + 0.5f - label_size.height() / 2, | |
250 | label_size.width(), label_size.height()); | |
251 | } | |
252 | ||
253 | void Trace::on_text_changed(const QString &text) | |
254 | { | |
255 | set_name(text); | |
256 | text_changed(); | |
257 | } | |
258 | ||
259 | void Trace::on_colour_changed(const QColor &colour) | |
260 | { | |
261 | set_colour(colour); | |
262 | colour_changed(); | |
263 | } | |
264 | ||
265 | } // namespace view | |
266 | } // namespace pv |