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1d8dca91 | 1 | /* |
b3f22de0 | 2 | * This file is part of the PulseView project. |
1d8dca91 JH |
3 | * |
4 | * Copyright (C) 2012 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 | ||
2acdb232 JH |
21 | #include "header.hpp" |
22 | #include "view.hpp" | |
1d8dca91 | 23 | |
2acdb232 JH |
24 | #include "signal.hpp" |
25 | #include "tracegroup.hpp" | |
1d8dca91 | 26 | |
68b21a71 JH |
27 | #include <cassert> |
28 | #include <algorithm> | |
1d8dca91 | 29 | |
73ba2d70 JH |
30 | #include <boost/iterator/filter_iterator.hpp> |
31 | ||
e3374498 | 32 | #include <QApplication> |
49f8ff3f | 33 | #include <QMenu> |
a29bb7fb | 34 | #include <QMouseEvent> |
1d8dca91 JH |
35 | #include <QPainter> |
36 | #include <QRect> | |
37 | ||
f65cd27b | 38 | #include <pv/session.hpp> |
2acdb232 | 39 | #include <pv/widgets/popup.hpp> |
569d1e41 | 40 | |
73ba2d70 | 41 | using boost::make_filter_iterator; |
bb419fdd | 42 | using std::dynamic_pointer_cast; |
819f4c25 JH |
43 | using std::max; |
44 | using std::make_pair; | |
73ba2d70 | 45 | using std::min; |
819f4c25 | 46 | using std::pair; |
f9abf97e | 47 | using std::shared_ptr; |
68b21a71 | 48 | using std::stable_sort; |
819f4c25 | 49 | using std::vector; |
1d8dca91 JH |
50 | |
51 | namespace pv { | |
52 | namespace view { | |
53 | ||
d7c0ca4a | 54 | const int Header::Padding = 12; |
512bfc56 | 55 | const int Header::BaselineOffset = 5; |
d7c0ca4a | 56 | |
73ba2d70 JH |
57 | static bool item_selected(shared_ptr<RowItem> r) |
58 | { | |
59 | return r->selected(); | |
60 | } | |
61 | ||
1d8dca91 | 62 | Header::Header(View &parent) : |
f4433aa9 | 63 | MarginWidget(parent) |
1d8dca91 | 64 | { |
8dbbc7f0 | 65 | connect(&view_, SIGNAL(signals_moved()), |
07204819 | 66 | this, SLOT(on_signals_moved())); |
1d8dca91 JH |
67 | } |
68 | ||
d7c0ca4a JH |
69 | QSize Header::sizeHint() const |
70 | { | |
b781f806 | 71 | QRectF max_rect(-Padding, 0, Padding, 0); |
8dbbc7f0 | 72 | for (auto &i : view_) |
aa59d5c2 | 73 | if (i->enabled()) |
b3f44329 | 74 | max_rect = max_rect.united(i->label_rect(QRect())); |
b781f806 | 75 | return QSize(max_rect.width() + Padding + BaselineOffset, 0); |
d7c0ca4a JH |
76 | } |
77 | ||
819e2e95 JH |
78 | QSize Header::extended_size_hint() const |
79 | { | |
80 | return sizeHint() + QSize(ViewItem::HighlightRadius, 0); | |
81 | } | |
82 | ||
859eed59 | 83 | shared_ptr<RowItem> Header::get_mouse_over_item(const QPoint &pt) |
e3374498 | 84 | { |
c13447b3 | 85 | const QRect r(0, 0, width() - BaselineOffset, height()); |
8dbbc7f0 | 86 | for (auto &i : view_) |
b3f44329 | 87 | if (i->enabled() && i->label_rect(r).contains(pt)) |
aa59d5c2 | 88 | return i; |
eae6e30a | 89 | return shared_ptr<RowItem>(); |
e3374498 JH |
90 | } |
91 | ||
a2ae0205 JH |
92 | void Header::clear_selection() |
93 | { | |
8dbbc7f0 | 94 | for (auto &i : view_) |
aa59d5c2 | 95 | i->select(false); |
a2ae0205 JH |
96 | update(); |
97 | } | |
98 | ||
e314eca4 | 99 | void Header::paintEvent(QPaintEvent*) |
1d8dca91 | 100 | { |
512bfc56 JS |
101 | // The trace labels are not drawn with the arrows exactly on the |
102 | // left edge of the widget, because then the selection shadow | |
103 | // would be clipped away. | |
c13447b3 | 104 | const QRect rect(0, 0, width() - BaselineOffset, height()); |
68b21a71 | 105 | |
aa59d5c2 | 106 | vector< shared_ptr<RowItem> > row_items( |
8dbbc7f0 | 107 | view_.begin(), view_.end()); |
aa59d5c2 | 108 | |
68b21a71 JH |
109 | stable_sort(row_items.begin(), row_items.end(), |
110 | [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) { | |
be9e7b4b | 111 | return a->visual_v_offset() < b->visual_v_offset(); }); |
1d8dca91 JH |
112 | |
113 | QPainter painter(this); | |
114 | painter.setRenderHint(QPainter::Antialiasing); | |
115 | ||
eae6e30a | 116 | for (const shared_ptr<RowItem> r : row_items) |
1d8dca91 | 117 | { |
eae6e30a | 118 | assert(r); |
1d8dca91 | 119 | |
8dbbc7f0 | 120 | const bool highlight = !dragging_ && |
b3f44329 JH |
121 | r->label_rect(rect).contains(mouse_point_); |
122 | r->paint_label(painter, rect, highlight); | |
1d8dca91 JH |
123 | } |
124 | ||
125 | painter.end(); | |
126 | } | |
127 | ||
e57ee799 JH |
128 | void Header::mouseLeftPressEvent(QMouseEvent *event) |
129 | { | |
f0c0b38f JH |
130 | (void)event; |
131 | ||
e57ee799 JH |
132 | const bool ctrl_pressed = |
133 | QApplication::keyboardModifiers() & Qt::ControlModifier; | |
134 | ||
135 | // Clear selection if control is not pressed and this item is unselected | |
8dbbc7f0 | 136 | if ((!mouse_down_item_ || !mouse_down_item_->selected()) && |
f0c0b38f | 137 | !ctrl_pressed) |
8dbbc7f0 | 138 | for (shared_ptr<RowItem> r : view_) |
e57ee799 JH |
139 | r->select(false); |
140 | ||
141 | // Set the signal selection state if the item has been clicked | |
8dbbc7f0 | 142 | if (mouse_down_item_) { |
e57ee799 | 143 | if (ctrl_pressed) |
8dbbc7f0 | 144 | mouse_down_item_->select(!mouse_down_item_->selected()); |
e57ee799 | 145 | else |
8dbbc7f0 | 146 | mouse_down_item_->select(true); |
e57ee799 JH |
147 | } |
148 | ||
149 | // Save the offsets of any signals which will be dragged | |
8dbbc7f0 | 150 | for (const shared_ptr<RowItem> r : view_) |
e57ee799 | 151 | if (r->selected()) |
0dda6fe5 | 152 | r->drag(); |
e57ee799 JH |
153 | |
154 | selection_changed(); | |
155 | update(); | |
156 | } | |
157 | ||
e3374498 JH |
158 | void Header::mousePressEvent(QMouseEvent *event) |
159 | { | |
160 | assert(event); | |
f0c0b38f | 161 | |
8dbbc7f0 | 162 | mouse_down_point_ = event->pos(); |
859eed59 | 163 | mouse_down_item_ = get_mouse_over_item(event->pos()); |
f0c0b38f | 164 | |
e57ee799 JH |
165 | if (event->button() & Qt::LeftButton) |
166 | mouseLeftPressEvent(event); | |
167 | } | |
e3374498 | 168 | |
e57ee799 JH |
169 | void Header::mouseLeftReleaseEvent(QMouseEvent *event) |
170 | { | |
171 | assert(event); | |
54401bbb | 172 | |
e57ee799 JH |
173 | const bool ctrl_pressed = |
174 | QApplication::keyboardModifiers() & Qt::ControlModifier; | |
da2bebfb | 175 | |
e57ee799 JH |
176 | // Unselect everything if control is not pressed |
177 | const shared_ptr<RowItem> mouse_over = | |
859eed59 | 178 | get_mouse_over_item(event->pos()); |
54401bbb | 179 | |
8dbbc7f0 | 180 | for (auto &r : view_) |
0dda6fe5 JH |
181 | r->drag_release(); |
182 | ||
8dbbc7f0 JH |
183 | if (dragging_) |
184 | view_.restack_all_row_items(); | |
7ff0145f | 185 | else |
e57ee799 JH |
186 | { |
187 | if (!ctrl_pressed) { | |
8dbbc7f0 JH |
188 | for (shared_ptr<RowItem> r : view_) |
189 | if (mouse_down_item_ != r) | |
e57ee799 JH |
190 | r->select(false); |
191 | ||
8dbbc7f0 JH |
192 | if (mouse_down_item_) |
193 | show_popup(mouse_down_item_); | |
e57ee799 | 194 | } |
07204819 JH |
195 | } |
196 | ||
8dbbc7f0 | 197 | dragging_ = false; |
e3374498 JH |
198 | } |
199 | ||
54401bbb JH |
200 | void Header::mouseReleaseEvent(QMouseEvent *event) |
201 | { | |
202 | assert(event); | |
e57ee799 JH |
203 | if (event->button() & Qt::LeftButton) |
204 | mouseLeftReleaseEvent(event); | |
f0c0b38f | 205 | |
8dbbc7f0 | 206 | mouse_down_item_ = nullptr; |
54401bbb JH |
207 | } |
208 | ||
a29bb7fb JH |
209 | void Header::mouseMoveEvent(QMouseEvent *event) |
210 | { | |
211 | assert(event); | |
8dbbc7f0 | 212 | mouse_point_ = event->pos(); |
54401bbb | 213 | |
728fcafc JH |
214 | if (!(event->buttons() & Qt::LeftButton)) |
215 | return; | |
216 | ||
8dbbc7f0 | 217 | if ((event->pos() - mouse_down_point_).manhattanLength() < |
728fcafc JH |
218 | QApplication::startDragDistance()) |
219 | return; | |
220 | ||
ee5f2a54 | 221 | // Check all the drag items share a common owner |
0dda6fe5 | 222 | RowItemOwner *item_owner = nullptr; |
8dbbc7f0 | 223 | for (shared_ptr<RowItem> r : view_) |
0dda6fe5 JH |
224 | if (r->dragging()) { |
225 | if (!item_owner) | |
226 | item_owner = r->owner(); | |
227 | else if(item_owner != r->owner()) | |
228 | return; | |
229 | } | |
230 | ||
231 | if (!item_owner) | |
232 | return; | |
da2bebfb | 233 | |
ee5f2a54 | 234 | // Do the drag |
8dbbc7f0 | 235 | dragging_ = true; |
54401bbb | 236 | |
23e75650 | 237 | const QPoint delta = event->pos() - mouse_down_point_; |
ee5f2a54 | 238 | |
8dbbc7f0 | 239 | for (std::shared_ptr<RowItem> r : view_) |
0dda6fe5 | 240 | if (r->dragging()) { |
23e75650 | 241 | r->drag_by(delta); |
ee5f2a54 JH |
242 | |
243 | // Ensure the trace is selected | |
0dda6fe5 | 244 | r->select(); |
ee5f2a54 | 245 | } |
54401bbb | 246 | |
7ff0145f JH |
247 | item_owner->restack_items(); |
248 | for (const auto &r : *item_owner) | |
249 | r->animate_to_layout_v_offset(); | |
ee5f2a54 JH |
250 | signals_moved(); |
251 | ||
a29bb7fb JH |
252 | update(); |
253 | } | |
254 | ||
e314eca4 | 255 | void Header::leaveEvent(QEvent*) |
a29bb7fb | 256 | { |
8dbbc7f0 | 257 | mouse_point_ = QPoint(-1, -1); |
a29bb7fb JH |
258 | update(); |
259 | } | |
260 | ||
49f8ff3f JH |
261 | void Header::contextMenuEvent(QContextMenuEvent *event) |
262 | { | |
859eed59 | 263 | const shared_ptr<RowItem> r = get_mouse_over_item(mouse_point_); |
a28878f4 JH |
264 | if (!r) |
265 | return; | |
266 | ||
73ba2d70 | 267 | QMenu *menu = r->create_context_menu(this); |
a28878f4 | 268 | if (!menu) |
73ba2d70 JH |
269 | menu = new QMenu(this); |
270 | ||
8dbbc7f0 | 271 | if (std::count_if(view_.begin(), view_.end(), item_selected) > 1) |
73ba2d70 JH |
272 | { |
273 | menu->addSeparator(); | |
274 | ||
275 | QAction *const group = new QAction(tr("Group"), this); | |
276 | QList<QKeySequence> shortcuts; | |
277 | shortcuts.append(QKeySequence(Qt::ControlModifier | Qt::Key_G)); | |
278 | group->setShortcuts(shortcuts); | |
279 | connect(group, SIGNAL(triggered()), this, SLOT(on_group())); | |
280 | menu->addAction(group); | |
281 | } | |
49f8ff3f | 282 | |
a28878f4 | 283 | menu->exec(event->globalPos()); |
b3b57abc JH |
284 | } |
285 | ||
5ed1adf5 JH |
286 | void Header::keyPressEvent(QKeyEvent *e) |
287 | { | |
288 | assert(e); | |
289 | ||
14ca8a8d | 290 | if (e->key() == Qt::Key_Delete) |
5ed1adf5 | 291 | { |
8dbbc7f0 | 292 | for (const shared_ptr<RowItem> r : view_) |
eae6e30a JH |
293 | if (r->selected()) |
294 | r->delete_pressed(); | |
5ed1adf5 | 295 | } |
14ca8a8d JH |
296 | else if (e->key() == Qt::Key_G && e->modifiers() == Qt::ControlModifier) |
297 | on_group(); | |
298 | else if (e->key() == Qt::Key_U && e->modifiers() == Qt::ControlModifier) | |
299 | on_ungroup(); | |
5ed1adf5 JH |
300 | } |
301 | ||
07204819 JH |
302 | void Header::on_signals_moved() |
303 | { | |
304 | update(); | |
305 | } | |
306 | ||
73ba2d70 JH |
307 | void Header::on_group() |
308 | { | |
309 | vector< shared_ptr<RowItem> > selected_items( | |
8dbbc7f0 JH |
310 | make_filter_iterator(item_selected, view_.begin(), view_.end()), |
311 | make_filter_iterator(item_selected, view_.end(), view_.end())); | |
73ba2d70 JH |
312 | stable_sort(selected_items.begin(), selected_items.end(), |
313 | [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) { | |
314 | return a->visual_v_offset() < b->visual_v_offset(); }); | |
315 | ||
316 | shared_ptr<TraceGroup> group(new TraceGroup()); | |
317 | shared_ptr<RowItem> focus_item( | |
8dbbc7f0 | 318 | mouse_down_item_ ? mouse_down_item_ : selected_items.front()); |
73ba2d70 JH |
319 | |
320 | assert(focus_item); | |
321 | assert(focus_item->owner()); | |
322 | focus_item->owner()->add_child_item(group); | |
323 | ||
324 | // Set the group v_offset here before reparenting | |
325 | group->force_to_v_offset(focus_item->layout_v_offset() + | |
326 | focus_item->v_extents().first); | |
327 | ||
328 | for (size_t i = 0; i < selected_items.size(); i++) { | |
329 | const shared_ptr<RowItem> &r = selected_items[i]; | |
330 | assert(r->owner()); | |
331 | r->owner()->remove_child_item(r); | |
332 | group->add_child_item(r); | |
333 | ||
334 | // Put the items at 1-pixel offsets, so that restack will | |
335 | // stack them in the right order | |
336 | r->set_layout_v_offset(i); | |
337 | } | |
338 | } | |
339 | ||
bb419fdd JH |
340 | void Header::on_ungroup() |
341 | { | |
342 | bool restart; | |
343 | do { | |
344 | restart = false; | |
8dbbc7f0 | 345 | for (const shared_ptr<RowItem> r : view_) { |
bb419fdd JH |
346 | const shared_ptr<TraceGroup> tg = |
347 | dynamic_pointer_cast<TraceGroup>(r); | |
348 | if (tg && tg->selected()) { | |
349 | tg->ungroup(); | |
350 | restart = true; | |
351 | break; | |
352 | } | |
353 | } | |
354 | } while(restart); | |
355 | } | |
356 | ||
1d8dca91 JH |
357 | } // namespace view |
358 | } // namespace pv |