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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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <extdef.h> | |
21 | ||
22 | #include <cassert> | |
23 | #include <cmath> | |
24 | ||
25 | #include <QApplication> | |
26 | #include <QFormLayout> | |
27 | #include <QKeyEvent> | |
28 | #include <QLineEdit> | |
29 | #include <QMenu> | |
30 | ||
31 | #include "ruler.hpp" | |
32 | #include "trace.hpp" | |
33 | #include "tracepalette.hpp" | |
34 | #include "view.hpp" | |
35 | ||
36 | #include "pv/globalsettings.hpp" | |
37 | #include "pv/widgets/colorbutton.hpp" | |
38 | #include "pv/widgets/popup.hpp" | |
39 | ||
40 | using std::pair; | |
41 | using std::shared_ptr; | |
42 | ||
43 | namespace pv { | |
44 | namespace views { | |
45 | namespace trace { | |
46 | ||
47 | const QPen Trace::AxisPen(QColor(0, 0, 0, 30 * 256 / 100)); | |
48 | const int Trace::LabelHitPadding = 2; | |
49 | ||
50 | const QColor Trace::BrightGrayBGColor = QColor(0, 0, 0, 10 * 255 / 100); | |
51 | const QColor Trace::DarkGrayBGColor = QColor(0, 0, 0, 15 * 255 / 100); | |
52 | ||
53 | Trace::Trace(shared_ptr<data::SignalBase> signal) : | |
54 | base_(signal), | |
55 | axis_pen_(AxisPen), | |
56 | segment_display_mode_(ShowLastSegmentOnly), // Will be overwritten by View | |
57 | current_segment_(0), | |
58 | popup_(nullptr), | |
59 | popup_form_(nullptr) | |
60 | { | |
61 | connect(signal.get(), SIGNAL(name_changed(const QString&)), | |
62 | this, SLOT(on_name_changed(const QString&))); | |
63 | connect(signal.get(), SIGNAL(color_changed(const QColor&)), | |
64 | this, SLOT(on_color_changed(const QColor&))); | |
65 | ||
66 | GlobalSettings::add_change_handler(this); | |
67 | ||
68 | GlobalSettings settings; | |
69 | show_hover_marker_ = | |
70 | settings.value(GlobalSettings::Key_View_ShowHoverMarker).toBool(); | |
71 | } | |
72 | ||
73 | Trace::~Trace() | |
74 | { | |
75 | GlobalSettings::remove_change_handler(this); | |
76 | } | |
77 | ||
78 | shared_ptr<data::SignalBase> Trace::base() const | |
79 | { | |
80 | return base_; | |
81 | } | |
82 | ||
83 | bool Trace::is_selectable(QPoint pos) const | |
84 | { | |
85 | // True if the header was clicked, false if the trace area was clicked | |
86 | const View *view = owner_->view(); | |
87 | assert(view); | |
88 | ||
89 | return (pos.x() <= view->header_width()); | |
90 | } | |
91 | ||
92 | bool Trace::is_draggable(QPoint pos) const | |
93 | { | |
94 | // While the header label that belongs to this trace is draggable, | |
95 | // the trace itself shall not be. Hence we return true if the header | |
96 | // was clicked and false if the trace area was clicked | |
97 | const View *view = owner_->view(); | |
98 | assert(view); | |
99 | ||
100 | return (pos.x() <= view->header_width()); | |
101 | } | |
102 | ||
103 | void Trace::set_segment_display_mode(SegmentDisplayMode mode) | |
104 | { | |
105 | segment_display_mode_ = mode; | |
106 | ||
107 | if (owner_) | |
108 | owner_->row_item_appearance_changed(true, true); | |
109 | } | |
110 | ||
111 | void Trace::on_setting_changed(const QString &key, const QVariant &value) | |
112 | { | |
113 | if (key == GlobalSettings::Key_View_ShowHoverMarker) | |
114 | show_hover_marker_ = value.toBool(); | |
115 | ||
116 | // Force a repaint since many options alter the way traces look | |
117 | if (owner_) | |
118 | owner_->row_item_appearance_changed(false, true); | |
119 | } | |
120 | ||
121 | void Trace::paint_label(QPainter &p, const QRect &rect, bool hover) | |
122 | { | |
123 | const int y = get_visual_y(); | |
124 | ||
125 | p.setBrush(base_->color()); | |
126 | ||
127 | if (!enabled()) | |
128 | return; | |
129 | ||
130 | const QRectF r = label_rect(rect); | |
131 | ||
132 | // When selected, move the arrow to the left so that the border can show | |
133 | const QPointF offs = (selected()) ? QPointF(-2, 0) : QPointF(0, 0); | |
134 | ||
135 | // Paint the label | |
136 | const float label_arrow_length = r.height() / 2; | |
137 | QPointF points[] = { | |
138 | offs + r.topLeft(), | |
139 | offs + QPointF(r.right() - label_arrow_length, r.top()), | |
140 | offs + QPointF(r.right(), y), | |
141 | offs + QPointF(r.right() - label_arrow_length, r.bottom()), | |
142 | offs + r.bottomLeft() | |
143 | }; | |
144 | QPointF highlight_points[] = { | |
145 | offs + QPointF(r.left() + 1, r.top() + 1), | |
146 | offs + QPointF(r.right() - label_arrow_length, r.top() + 1), | |
147 | offs + QPointF(r.right() - 1, y), | |
148 | offs + QPointF(r.right() - label_arrow_length, r.bottom() - 1), | |
149 | offs + QPointF(r.left() + 1, r.bottom() - 1) | |
150 | }; | |
151 | ||
152 | if (selected()) { | |
153 | p.setPen(highlight_pen()); | |
154 | p.setBrush(Qt::transparent); | |
155 | p.drawPolygon(points, countof(points)); | |
156 | } | |
157 | ||
158 | p.setPen(Qt::transparent); | |
159 | p.setBrush(hover ? base_->color().lighter() : base_->color()); | |
160 | p.drawPolygon(points, countof(points)); | |
161 | ||
162 | p.setPen(base_->color().lighter()); | |
163 | p.setBrush(Qt::transparent); | |
164 | p.drawPolygon(highlight_points, countof(highlight_points)); | |
165 | ||
166 | p.setPen(base_->color().darker()); | |
167 | p.setBrush(Qt::transparent); | |
168 | p.drawPolygon(points, countof(points)); | |
169 | ||
170 | // Paint the text | |
171 | p.setPen(select_text_color(base_->color())); | |
172 | p.setFont(QApplication::font()); | |
173 | p.drawText(QRectF(r.x(), r.y(), | |
174 | r.width() - label_arrow_length, r.height()), | |
175 | Qt::AlignCenter | Qt::AlignVCenter, base_->name()); | |
176 | } | |
177 | ||
178 | QMenu* Trace::create_header_context_menu(QWidget *parent) | |
179 | { | |
180 | QMenu *const menu = ViewItem::create_header_context_menu(parent); | |
181 | ||
182 | return menu; | |
183 | } | |
184 | ||
185 | QMenu* Trace::create_view_context_menu(QWidget *parent, QPoint &click_pos) | |
186 | { | |
187 | context_menu_x_pos_ = click_pos.x(); | |
188 | ||
189 | // Get entries from default menu before adding our own | |
190 | QMenu *const menu = new QMenu(parent); | |
191 | ||
192 | QMenu* default_menu = TraceTreeItem::create_view_context_menu(parent, click_pos); | |
193 | if (default_menu) { | |
194 | for (QAction *action : default_menu->actions()) { // clazy:exclude=range-loop | |
195 | menu->addAction(action); | |
196 | if (action->parent() == default_menu) | |
197 | action->setParent(menu); | |
198 | } | |
199 | delete default_menu; | |
200 | ||
201 | // Add separator if needed | |
202 | if (menu->actions().length() > 0) | |
203 | menu->addSeparator(); | |
204 | } | |
205 | ||
206 | QAction *const create_marker_here = new QAction(tr("Create marker here"), this); | |
207 | connect(create_marker_here, SIGNAL(triggered()), this, SLOT(on_create_marker_here())); | |
208 | menu->addAction(create_marker_here); | |
209 | ||
210 | return menu; | |
211 | } | |
212 | ||
213 | pv::widgets::Popup* Trace::create_popup(QWidget *parent) | |
214 | { | |
215 | using pv::widgets::Popup; | |
216 | ||
217 | popup_ = new Popup(parent); | |
218 | popup_->set_position(parent->mapToGlobal( | |
219 | drag_point(parent->rect())), Popup::Right); | |
220 | ||
221 | create_popup_form(); | |
222 | ||
223 | connect(popup_, SIGNAL(closed()), this, SLOT(on_popup_closed())); | |
224 | ||
225 | return popup_; | |
226 | } | |
227 | ||
228 | QRectF Trace::label_rect(const QRectF &rect) const | |
229 | { | |
230 | QFontMetrics m(QApplication::font()); | |
231 | const QSize text_size( | |
232 | m.boundingRect(QRect(), 0, base_->name()).width(), m.height()); | |
233 | const QSizeF label_size( | |
234 | text_size.width() + LabelPadding.width() * 2, | |
235 | ceilf((text_size.height() + LabelPadding.height() * 2) / 2) * 2); | |
236 | const float half_height = label_size.height() / 2; | |
237 | return QRectF( | |
238 | rect.right() - half_height - label_size.width() - 0.5, | |
239 | get_visual_y() + 0.5f - half_height, | |
240 | label_size.width() + half_height, | |
241 | label_size.height()); | |
242 | } | |
243 | ||
244 | QRectF Trace::hit_box_rect(const ViewItemPaintParams &pp) const | |
245 | { | |
246 | // This one is only for the trace itself, excluding the header area | |
247 | const View *view = owner_->view(); | |
248 | assert(view); | |
249 | ||
250 | pair<int, int> extents = v_extents(); | |
251 | const int top = pp.top() + get_visual_y() + extents.first; | |
252 | const int height = extents.second - extents.first; | |
253 | ||
254 | return QRectF(pp.left() + view->header_width(), top, | |
255 | pp.width() - view->header_width(), height); | |
256 | } | |
257 | ||
258 | void Trace::set_current_segment(const int segment) | |
259 | { | |
260 | current_segment_ = segment; | |
261 | } | |
262 | ||
263 | int Trace::get_current_segment() const | |
264 | { | |
265 | return current_segment_; | |
266 | } | |
267 | ||
268 | void Trace::hover_point_changed(const QPoint &hp) | |
269 | { | |
270 | (void)hp; | |
271 | ||
272 | if (owner_) | |
273 | owner_->row_item_appearance_changed(false, true); | |
274 | } | |
275 | ||
276 | void Trace::paint_back(QPainter &p, ViewItemPaintParams &pp) | |
277 | { | |
278 | const View *view = owner_->view(); | |
279 | assert(view); | |
280 | ||
281 | if (view->colored_bg()) | |
282 | p.setBrush(base_->bgcolor()); | |
283 | else | |
284 | p.setBrush(pp.next_bg_color_state() ? BrightGrayBGColor : DarkGrayBGColor); | |
285 | ||
286 | p.setPen(QPen(Qt::NoPen)); | |
287 | ||
288 | const pair<int, int> extents = v_extents(); | |
289 | p.drawRect(pp.left(), get_visual_y() + extents.first, | |
290 | pp.width(), extents.second - extents.first); | |
291 | } | |
292 | ||
293 | void Trace::paint_axis(QPainter &p, ViewItemPaintParams &pp, int y) | |
294 | { | |
295 | bool was_antialiased = p.testRenderHint(QPainter::Antialiasing); | |
296 | p.setRenderHint(QPainter::Antialiasing, false); | |
297 | ||
298 | p.setPen(axis_pen_); | |
299 | p.drawLine(QPointF(pp.left(), y), QPointF(pp.right(), y)); | |
300 | ||
301 | p.setRenderHint(QPainter::Antialiasing, was_antialiased); | |
302 | } | |
303 | ||
304 | void Trace::add_color_option(QWidget *parent, QFormLayout *form) | |
305 | { | |
306 | using pv::widgets::ColorButton; | |
307 | ||
308 | ColorButton *const color_button = new ColorButton( | |
309 | TracePalette::Rows, TracePalette::Cols, parent); | |
310 | color_button->set_palette(TracePalette::Colors); | |
311 | color_button->set_color(base_->color()); | |
312 | connect(color_button, SIGNAL(selected(const QColor&)), | |
313 | this, SLOT(on_coloredit_changed(const QColor&))); | |
314 | ||
315 | form->addRow(tr("Color"), color_button); | |
316 | } | |
317 | ||
318 | void Trace::paint_hover_marker(QPainter &p) | |
319 | { | |
320 | const View *view = owner_->view(); | |
321 | assert(view); | |
322 | ||
323 | const int x = view->hover_point().x(); | |
324 | ||
325 | if (x == -1) | |
326 | return; | |
327 | ||
328 | p.setPen(QPen(QColor(Qt::lightGray))); | |
329 | ||
330 | const pair<int, int> extents = v_extents(); | |
331 | ||
332 | bool was_antialiased = p.testRenderHint(QPainter::Antialiasing); | |
333 | p.setRenderHint(QPainter::Antialiasing, false); | |
334 | p.drawLine(x, get_visual_y() + extents.first, | |
335 | x, get_visual_y() + extents.second); | |
336 | p.setRenderHint(QPainter::Antialiasing, was_antialiased); | |
337 | } | |
338 | ||
339 | void Trace::create_popup_form() | |
340 | { | |
341 | // Clear the layout | |
342 | ||
343 | // Transfer the layout and the child widgets to a temporary widget | |
344 | // which we delete after the event was handled. This way, the layout | |
345 | // and all widgets contained therein are deleted after the event was | |
346 | // handled, leaving the parent popup_ time to handle the change. | |
347 | if (popup_form_) { | |
348 | QWidget *suicidal = new QWidget(); | |
349 | suicidal->setLayout(popup_->layout()); | |
350 | suicidal->deleteLater(); | |
351 | } | |
352 | ||
353 | // Repopulate the popup | |
354 | widgets::QWidthAdjustingScrollArea* scrollarea = new widgets::QWidthAdjustingScrollArea(); | |
355 | QWidget* scrollarea_content = new QWidget(scrollarea); | |
356 | ||
357 | scrollarea->setWidget(scrollarea_content); | |
358 | scrollarea->setWidgetResizable(true); | |
359 | scrollarea->setContentsMargins(0, 0, 0, 0); | |
360 | scrollarea->setFrameShape(QFrame::NoFrame); | |
361 | scrollarea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); | |
362 | scrollarea_content->setContentsMargins(0, 0, 0, 0); | |
363 | ||
364 | popup_->setLayout(new QVBoxLayout()); | |
365 | popup_->layout()->addWidget(scrollarea); | |
366 | popup_->layout()->setContentsMargins(0, 0, 0, 0); | |
367 | ||
368 | popup_form_ = new QFormLayout(scrollarea_content); | |
369 | popup_form_->setSizeConstraint(QLayout::SetMinAndMaxSize); | |
370 | ||
371 | populate_popup_form(popup_, popup_form_); | |
372 | } | |
373 | ||
374 | void Trace::populate_popup_form(QWidget *parent, QFormLayout *form) | |
375 | { | |
376 | QLineEdit *const name_edit = new QLineEdit(parent); | |
377 | name_edit->setText(base_->name()); | |
378 | connect(name_edit, SIGNAL(textChanged(const QString&)), | |
379 | this, SLOT(on_nameedit_changed(const QString&))); | |
380 | form->addRow(tr("Name"), name_edit); | |
381 | ||
382 | add_color_option(parent, form); | |
383 | } | |
384 | ||
385 | void Trace::on_name_changed(const QString &text) | |
386 | { | |
387 | /* This event handler is called by SignalBase when the name was changed there */ | |
388 | (void)text; | |
389 | ||
390 | if (owner_) { | |
391 | owner_->extents_changed(true, false); | |
392 | owner_->row_item_appearance_changed(true, false); | |
393 | } | |
394 | } | |
395 | ||
396 | void Trace::on_color_changed(const QColor &color) | |
397 | { | |
398 | /* This event handler is called by SignalBase when the color was changed there */ | |
399 | (void)color; | |
400 | ||
401 | if (owner_) | |
402 | owner_->row_item_appearance_changed(true, true); | |
403 | } | |
404 | ||
405 | void Trace::on_popup_closed() | |
406 | { | |
407 | popup_ = nullptr; | |
408 | popup_form_ = nullptr; | |
409 | } | |
410 | ||
411 | void Trace::on_nameedit_changed(const QString &name) | |
412 | { | |
413 | /* This event handler notifies SignalBase that the name changed */ | |
414 | base_->set_name(name); | |
415 | } | |
416 | ||
417 | void Trace::on_coloredit_changed(const QColor &color) | |
418 | { | |
419 | /* This event handler notifies SignalBase that the color changed */ | |
420 | base_->set_color(color); | |
421 | } | |
422 | ||
423 | void Trace::on_create_marker_here() const | |
424 | { | |
425 | View *view = owner_->view(); | |
426 | assert(view); | |
427 | ||
428 | const Ruler *ruler = view->ruler(); | |
429 | QPoint p = ruler->mapFrom(view, QPoint(context_menu_x_pos_, 0)); | |
430 | ||
431 | view->add_flag(ruler->get_absolute_time_from_x_pos(p.x())); | |
432 | } | |
433 | ||
434 | } // namespace trace | |
435 | } // namespace views | |
436 | } // namespace pv |