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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 | ||
b213ef09 JH |
26 | #include <QFormLayout> |
27 | #include <QLineEdit> | |
28 | ||
931f20b0 | 29 | #include "trace.h" |
91e8bf08 | 30 | #include "tracepalette.h" |
931f20b0 JH |
31 | #include "view.h" |
32 | ||
91e8bf08 | 33 | #include <pv/widgets/colourbutton.h> |
569d1e41 | 34 | |
931f20b0 JH |
35 | namespace pv { |
36 | namespace view { | |
37 | ||
fe08b6e8 | 38 | const QPen Trace::AxisPen(QColor(128, 128, 128, 64)); |
931f20b0 JH |
39 | const int Trace::LabelHitPadding = 2; |
40 | ||
41 | Trace::Trace(pv::SigSession &session, QString name) : | |
42 | _session(session), | |
43 | _name(name), | |
20eaae39 JH |
44 | _v_offset(0), |
45 | _popup(NULL), | |
46 | _popup_form(NULL) | |
931f20b0 JH |
47 | { |
48 | } | |
49 | ||
50 | QString Trace::get_name() const | |
51 | { | |
52 | return _name; | |
53 | } | |
54 | ||
55 | void Trace::set_name(QString name) | |
56 | { | |
57 | _name = name; | |
58 | } | |
59 | ||
60 | QColor Trace::get_colour() const | |
61 | { | |
62 | return _colour; | |
63 | } | |
64 | ||
65 | void Trace::set_colour(QColor colour) | |
66 | { | |
67 | _colour = colour; | |
68 | } | |
69 | ||
70 | int Trace::get_v_offset() const | |
71 | { | |
72 | return _v_offset; | |
73 | } | |
74 | ||
75 | void Trace::set_v_offset(int v_offset) | |
76 | { | |
77 | _v_offset = v_offset; | |
78 | } | |
79 | ||
01fd3263 | 80 | void Trace::set_view(pv::view::View *view) |
931f20b0 | 81 | { |
01fd3263 JH |
82 | assert(view); |
83 | _view = view; | |
84 | } | |
85 | ||
fe08b6e8 JH |
86 | void Trace::paint_back(QPainter &p, int left, int right) |
87 | { | |
88 | (void)p; | |
89 | (void)left; | |
90 | (void)right; | |
91 | } | |
92 | ||
93 | void Trace::paint_mid(QPainter &p, int left, int right) | |
94 | { | |
95 | (void)p; | |
96 | (void)left; | |
97 | (void)right; | |
98 | } | |
99 | ||
100 | void Trace::paint_fore(QPainter &p, int left, int right) | |
101 | { | |
102 | (void)p; | |
103 | (void)left; | |
104 | (void)right; | |
105 | } | |
106 | ||
01fd3263 JH |
107 | void Trace::paint_label(QPainter &p, int right, bool hover) |
108 | { | |
109 | assert(_view); | |
110 | const int y = _v_offset - _view->v_offset(); | |
111 | ||
931f20b0 JH |
112 | p.setBrush(_colour); |
113 | ||
114 | if (!enabled()) | |
115 | return; | |
116 | ||
117 | const QColor colour = get_colour(); | |
118 | ||
119 | compute_text_size(p); | |
01fd3263 | 120 | const QRectF label_rect = get_label_rect(right); |
931f20b0 JH |
121 | |
122 | // Paint the label | |
123 | const QPointF points[] = { | |
124 | label_rect.topLeft(), | |
125 | label_rect.topRight(), | |
126 | QPointF(right, y), | |
127 | label_rect.bottomRight(), | |
128 | label_rect.bottomLeft() | |
129 | }; | |
130 | ||
131 | const QPointF highlight_points[] = { | |
132 | QPointF(label_rect.left() + 1, label_rect.top() + 1), | |
133 | QPointF(label_rect.right(), label_rect.top() + 1), | |
134 | QPointF(right - 1, y), | |
135 | QPointF(label_rect.right(), label_rect.bottom() - 1), | |
136 | QPointF(label_rect.left() + 1, label_rect.bottom() - 1) | |
137 | }; | |
138 | ||
139 | if (selected()) { | |
140 | p.setPen(highlight_pen()); | |
141 | p.setBrush(Qt::transparent); | |
142 | p.drawPolygon(points, countof(points)); | |
143 | } | |
144 | ||
145 | p.setPen(Qt::transparent); | |
146 | p.setBrush(hover ? colour.lighter() : colour); | |
147 | p.drawPolygon(points, countof(points)); | |
148 | ||
149 | p.setPen(colour.lighter()); | |
150 | p.setBrush(Qt::transparent); | |
151 | p.drawPolygon(highlight_points, countof(highlight_points)); | |
152 | ||
153 | p.setPen(colour.darker()); | |
154 | p.setBrush(Qt::transparent); | |
155 | p.drawPolygon(points, countof(points)); | |
156 | ||
157 | // Paint the text | |
410f9c81 | 158 | p.setPen(get_text_colour()); |
931f20b0 JH |
159 | p.drawText(label_rect, Qt::AlignCenter | Qt::AlignVCenter, _name); |
160 | } | |
161 | ||
01fd3263 | 162 | bool Trace::pt_in_label_rect(int left, int right, const QPoint &point) |
931f20b0 JH |
163 | { |
164 | (void)left; | |
165 | ||
01fd3263 | 166 | const QRectF label = get_label_rect(right); |
931f20b0 JH |
167 | return QRectF( |
168 | QPointF(label.left() - LabelHitPadding, | |
169 | label.top() - LabelHitPadding), | |
170 | QPointF(right, label.bottom() + LabelHitPadding) | |
171 | ).contains(point); | |
172 | } | |
173 | ||
9b6378f1 JH |
174 | QMenu* Trace::create_context_menu(QWidget *parent) |
175 | { | |
176 | QMenu *const menu = SelectableItem::create_context_menu(parent); | |
177 | ||
9b6378f1 JH |
178 | return menu; |
179 | } | |
180 | ||
569d1e41 JH |
181 | pv::widgets::Popup* Trace::create_popup(QWidget *parent) |
182 | { | |
183 | using pv::widgets::Popup; | |
20eaae39 JH |
184 | |
185 | _popup = new Popup(parent); | |
20eaae39 | 186 | |
37fd11b1 | 187 | create_popup_form(); |
20eaae39 JH |
188 | |
189 | connect(_popup, SIGNAL(closed()), | |
190 | this, SLOT(on_popup_closed())); | |
191 | ||
192 | return _popup; | |
569d1e41 JH |
193 | } |
194 | ||
fe08b6e8 JH |
195 | int Trace::get_y() const |
196 | { | |
197 | return _v_offset - _view->v_offset(); | |
198 | } | |
199 | ||
410f9c81 JH |
200 | QColor Trace::get_text_colour() const |
201 | { | |
202 | return (_colour.lightness() > 64) ? Qt::black : Qt::white; | |
203 | } | |
204 | ||
fe08b6e8 JH |
205 | void Trace::paint_axis(QPainter &p, int y, int left, int right) |
206 | { | |
207 | p.setPen(AxisPen); | |
208 | p.drawLine(QPointF(left, y + 0.5f), QPointF(right, y + 0.5f)); | |
209 | } | |
210 | ||
91e8bf08 JH |
211 | void Trace::add_colour_option(QWidget *parent, QFormLayout *form) |
212 | { | |
213 | using pv::widgets::ColourButton; | |
214 | ||
215 | ColourButton *const colour_button = new ColourButton( | |
216 | TracePalette::Rows, TracePalette::Cols, parent); | |
217 | colour_button->set_palette(TracePalette::Colours); | |
218 | colour_button->set_colour(_colour); | |
219 | connect(colour_button, SIGNAL(selected(const QColor&)), | |
220 | this, SLOT(on_colour_changed(const QColor&))); | |
221 | ||
222 | form->addRow(tr("Colour"), colour_button); | |
223 | } | |
224 | ||
37fd11b1 JH |
225 | void Trace::create_popup_form() |
226 | { | |
227 | // Clear the layout | |
228 | ||
229 | // Transfer the layout and the child widgets to a temporary widget | |
230 | // which then goes out of scope destroying the layout and all the child | |
231 | // widgets. | |
232 | if (_popup_form) | |
233 | QWidget().setLayout(_popup_form); | |
234 | ||
235 | // Repopulate the popup | |
236 | _popup_form = new QFormLayout(_popup); | |
237 | _popup->setLayout(_popup_form); | |
238 | populate_popup_form(_popup, _popup_form); | |
239 | } | |
240 | ||
569d1e41 JH |
241 | void Trace::populate_popup_form(QWidget *parent, QFormLayout *form) |
242 | { | |
68456dab JH |
243 | QLineEdit *const name_edit = new QLineEdit(parent); |
244 | name_edit->setText(_name); | |
245 | connect(name_edit, SIGNAL(textChanged(const QString&)), | |
246 | this, SLOT(on_text_changed(const QString&))); | |
247 | form->addRow(tr("Name"), name_edit); | |
91e8bf08 JH |
248 | |
249 | add_colour_option(parent, form); | |
569d1e41 JH |
250 | } |
251 | ||
931f20b0 JH |
252 | void Trace::compute_text_size(QPainter &p) |
253 | { | |
254 | _text_size = QSize( | |
255 | p.boundingRect(QRectF(), 0, _name).width(), | |
256 | p.boundingRect(QRectF(), 0, "Tg").height()); | |
257 | } | |
258 | ||
01fd3263 | 259 | QRectF Trace::get_label_rect(int right) |
931f20b0 JH |
260 | { |
261 | using pv::view::View; | |
262 | ||
01fd3263 | 263 | assert(_view); |
01fd3263 | 264 | |
931f20b0 JH |
265 | const QSizeF label_size( |
266 | _text_size.width() + View::LabelPadding.width() * 2, | |
267 | ceilf((_text_size.height() + View::LabelPadding.height() * 2) / 2) * 2); | |
268 | const float label_arrow_length = label_size.height() / 2; | |
269 | return QRectF( | |
270 | right - label_arrow_length - label_size.width() - 0.5, | |
f39936fb | 271 | get_y() + 0.5f - label_size.height() / 2, |
931f20b0 JH |
272 | label_size.width(), label_size.height()); |
273 | } | |
274 | ||
20eaae39 JH |
275 | void Trace::on_popup_closed() |
276 | { | |
277 | _popup = NULL; | |
278 | _popup_form = NULL; | |
279 | } | |
280 | ||
68456dab JH |
281 | void Trace::on_text_changed(const QString &text) |
282 | { | |
283 | set_name(text); | |
284 | text_changed(); | |
285 | } | |
9b6378f1 | 286 | |
91e8bf08 JH |
287 | void Trace::on_colour_changed(const QColor &colour) |
288 | { | |
289 | set_colour(colour); | |
290 | colour_changed(); | |
291 | } | |
292 | ||
931f20b0 JH |
293 | } // namespace view |
294 | } // namespace pv |