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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 | ||
21 | #include "header.h" | |
22 | #include "view.h" | |
23 | ||
8d634081 | 24 | #include "signal.h" |
51e77110 | 25 | #include "../sigsession.h" |
1d8dca91 | 26 | |
68b21a71 JH |
27 | #include <cassert> |
28 | #include <algorithm> | |
1d8dca91 | 29 | |
e3374498 | 30 | #include <QApplication> |
49f8ff3f | 31 | #include <QMenu> |
a29bb7fb | 32 | #include <QMouseEvent> |
1d8dca91 JH |
33 | #include <QPainter> |
34 | #include <QRect> | |
35 | ||
569d1e41 JH |
36 | #include <pv/widgets/popup.h> |
37 | ||
819f4c25 JH |
38 | using std::max; |
39 | using std::make_pair; | |
40 | using std::pair; | |
f9abf97e | 41 | using std::shared_ptr; |
68b21a71 | 42 | using std::stable_sort; |
819f4c25 | 43 | using std::vector; |
1d8dca91 JH |
44 | |
45 | namespace pv { | |
46 | namespace view { | |
47 | ||
d7c0ca4a | 48 | const int Header::Padding = 12; |
512bfc56 | 49 | const int Header::BaselineOffset = 5; |
d7c0ca4a | 50 | |
1d8dca91 | 51 | Header::Header(View &parent) : |
728fcafc JH |
52 | MarginWidget(parent), |
53 | _dragging(false) | |
1d8dca91 | 54 | { |
5ed1adf5 | 55 | setFocusPolicy(Qt::ClickFocus); |
a29bb7fb | 56 | setMouseTracking(true); |
49f8ff3f | 57 | |
9e40e83d JH |
58 | connect(&_view.session(), SIGNAL(signals_changed()), |
59 | this, SLOT(on_signals_changed())); | |
60 | ||
07204819 JH |
61 | connect(&_view, SIGNAL(signals_moved()), |
62 | this, SLOT(on_signals_moved())); | |
1d8dca91 JH |
63 | } |
64 | ||
d7c0ca4a JH |
65 | QSize Header::sizeHint() const |
66 | { | |
67 | int max_width = 0; | |
68 | ||
aa59d5c2 JH |
69 | for (auto &i : _view) |
70 | if (i->enabled()) | |
71 | max_width = max(max_width, (int)i->label_rect(0).width()); | |
d7c0ca4a | 72 | |
512bfc56 | 73 | return QSize(max_width + Padding + BaselineOffset, 0); |
d7c0ca4a JH |
74 | } |
75 | ||
eae6e30a | 76 | shared_ptr<RowItem> Header::get_mouse_over_row_item(const QPoint &pt) |
e3374498 | 77 | { |
de0b46de | 78 | const int w = width() - BaselineOffset; |
aa59d5c2 JH |
79 | for (auto &i : _view) |
80 | if (i->enabled() && i->label_rect(w).contains(pt)) | |
81 | return i; | |
eae6e30a | 82 | return shared_ptr<RowItem>(); |
e3374498 JH |
83 | } |
84 | ||
a2ae0205 JH |
85 | void Header::clear_selection() |
86 | { | |
aa59d5c2 JH |
87 | for (auto &i : _view) |
88 | i->select(false); | |
a2ae0205 JH |
89 | update(); |
90 | } | |
91 | ||
8b4802fb JH |
92 | void Header::show_popup(const shared_ptr<RowItem> &item) |
93 | { | |
94 | using pv::widgets::Popup; | |
95 | ||
96 | Popup *const p = item->create_popup(&_view); | |
97 | if (!p) | |
98 | return; | |
99 | ||
100 | const QPoint pt(width() - BaselineOffset, item->get_y()); | |
101 | p->set_position(mapToGlobal(pt), Popup::Right); | |
102 | p->show(); | |
103 | } | |
104 | ||
e314eca4 | 105 | void Header::paintEvent(QPaintEvent*) |
1d8dca91 | 106 | { |
512bfc56 JS |
107 | // The trace labels are not drawn with the arrows exactly on the |
108 | // left edge of the widget, because then the selection shadow | |
109 | // would be clipped away. | |
110 | const int w = width() - BaselineOffset; | |
68b21a71 | 111 | |
aa59d5c2 JH |
112 | vector< shared_ptr<RowItem> > row_items( |
113 | _view.begin(), _view.end()); | |
114 | ||
68b21a71 JH |
115 | stable_sort(row_items.begin(), row_items.end(), |
116 | [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) { | |
117 | return a->v_offset() < b->v_offset(); }); | |
1d8dca91 JH |
118 | |
119 | QPainter painter(this); | |
120 | painter.setRenderHint(QPainter::Antialiasing); | |
121 | ||
eae6e30a JH |
122 | const bool dragging = !_drag_row_items.empty(); |
123 | for (const shared_ptr<RowItem> r : row_items) | |
1d8dca91 | 124 | { |
eae6e30a | 125 | assert(r); |
1d8dca91 | 126 | |
25201e88 | 127 | const bool highlight = !dragging && |
eae6e30a JH |
128 | r->label_rect(w).contains(_mouse_point); |
129 | r->paint_label(painter, w, highlight); | |
1d8dca91 JH |
130 | } |
131 | ||
132 | painter.end(); | |
133 | } | |
134 | ||
e3374498 JH |
135 | void Header::mousePressEvent(QMouseEvent *event) |
136 | { | |
137 | assert(event); | |
138 | ||
333d5bbc | 139 | if (event->button() & Qt::LeftButton) { |
54401bbb JH |
140 | _mouse_down_point = event->pos(); |
141 | ||
da2bebfb | 142 | // Save the offsets of any signals which will be dragged |
aa59d5c2 | 143 | for (const shared_ptr<RowItem> r : _view) |
eae6e30a JH |
144 | if (r->selected()) |
145 | _drag_row_items.push_back( | |
146 | make_pair(r, r->v_offset())); | |
da2bebfb JH |
147 | } |
148 | ||
149 | // Select the signal if it has been clicked | |
eae6e30a JH |
150 | const shared_ptr<RowItem> mouse_over_row_item = |
151 | get_mouse_over_row_item(event->pos()); | |
152 | if (mouse_over_row_item) { | |
153 | if (mouse_over_row_item->selected()) | |
154 | mouse_over_row_item->select(false); | |
da2bebfb | 155 | else { |
eae6e30a | 156 | mouse_over_row_item->select(true); |
da2bebfb | 157 | |
333d5bbc | 158 | if (~QApplication::keyboardModifiers() & |
07204819 | 159 | Qt::ControlModifier) |
eae6e30a | 160 | _drag_row_items.clear(); |
07204819 | 161 | |
da2bebfb | 162 | // Add the signal to the drag list |
333d5bbc | 163 | if (event->button() & Qt::LeftButton) |
eae6e30a JH |
164 | _drag_row_items.push_back( |
165 | make_pair(mouse_over_row_item, | |
166 | mouse_over_row_item->v_offset())); | |
da2bebfb | 167 | } |
54401bbb JH |
168 | } |
169 | ||
333d5bbc | 170 | if (~QApplication::keyboardModifiers() & Qt::ControlModifier) { |
07204819 JH |
171 | // Unselect all other signals because the Ctrl is not |
172 | // pressed | |
aa59d5c2 | 173 | for (const shared_ptr<RowItem> r : _view) |
eae6e30a JH |
174 | if (r != mouse_over_row_item) |
175 | r->select(false); | |
07204819 JH |
176 | } |
177 | ||
b2a53645 | 178 | selection_changed(); |
e3374498 JH |
179 | update(); |
180 | } | |
181 | ||
54401bbb JH |
182 | void Header::mouseReleaseEvent(QMouseEvent *event) |
183 | { | |
184 | assert(event); | |
333d5bbc | 185 | if (event->button() == Qt::LeftButton) { |
569d1e41 JH |
186 | if (_dragging) |
187 | _view.normalize_layout(); | |
188 | else | |
189 | { | |
eae6e30a JH |
190 | const shared_ptr<RowItem> mouse_over_row_item = |
191 | get_mouse_over_row_item(event->pos()); | |
8b4802fb JH |
192 | if (mouse_over_row_item) |
193 | show_popup(mouse_over_row_item); | |
569d1e41 JH |
194 | } |
195 | ||
728fcafc | 196 | _dragging = false; |
eae6e30a | 197 | _drag_row_items.clear(); |
4b192962 | 198 | } |
54401bbb JH |
199 | } |
200 | ||
a29bb7fb JH |
201 | void Header::mouseMoveEvent(QMouseEvent *event) |
202 | { | |
203 | assert(event); | |
204 | _mouse_point = event->pos(); | |
54401bbb | 205 | |
728fcafc JH |
206 | if (!(event->buttons() & Qt::LeftButton)) |
207 | return; | |
208 | ||
209 | if ((event->pos() - _mouse_down_point).manhattanLength() < | |
210 | QApplication::startDragDistance()) | |
211 | return; | |
212 | ||
54401bbb | 213 | // Move the signals if we are dragging |
eae6e30a | 214 | if (!_drag_row_items.empty()) |
728fcafc JH |
215 | { |
216 | _dragging = true; | |
217 | ||
54401bbb JH |
218 | const int delta = event->pos().y() - _mouse_down_point.y(); |
219 | ||
eae6e30a JH |
220 | for (auto i = _drag_row_items.begin(); |
221 | i != _drag_row_items.end(); i++) { | |
222 | const std::shared_ptr<RowItem> row_item((*i).first); | |
223 | if (row_item) { | |
da2bebfb | 224 | const int y = (*i).second + delta; |
49153683 JH |
225 | const int y_snap = |
226 | ((y + View::SignalSnapGridSize / 2) / | |
227 | View::SignalSnapGridSize) * | |
228 | View::SignalSnapGridSize; | |
eae6e30a | 229 | row_item->set_v_offset(y_snap); |
da2bebfb | 230 | |
38eeddea | 231 | // Ensure the trace is selected |
eae6e30a | 232 | row_item->select(); |
49153683 | 233 | } |
da2bebfb JH |
234 | |
235 | } | |
54401bbb JH |
236 | |
237 | signals_moved(); | |
238 | } | |
239 | ||
a29bb7fb JH |
240 | update(); |
241 | } | |
242 | ||
e314eca4 | 243 | void Header::leaveEvent(QEvent*) |
a29bb7fb JH |
244 | { |
245 | _mouse_point = QPoint(-1, -1); | |
246 | update(); | |
247 | } | |
248 | ||
49f8ff3f JH |
249 | void Header::contextMenuEvent(QContextMenuEvent *event) |
250 | { | |
eae6e30a | 251 | const shared_ptr<RowItem> r = get_mouse_over_row_item(_mouse_point); |
a28878f4 JH |
252 | if (!r) |
253 | return; | |
254 | ||
255 | QMenu *const menu = r->create_context_menu(this); | |
256 | if (!menu) | |
257 | return; | |
49f8ff3f | 258 | |
a28878f4 | 259 | menu->exec(event->globalPos()); |
b3b57abc JH |
260 | } |
261 | ||
5ed1adf5 JH |
262 | void Header::keyPressEvent(QKeyEvent *e) |
263 | { | |
264 | assert(e); | |
265 | ||
266 | switch (e->key()) | |
267 | { | |
268 | case Qt::Key_Delete: | |
269 | { | |
aa59d5c2 | 270 | for (const shared_ptr<RowItem> r : _view) |
eae6e30a JH |
271 | if (r->selected()) |
272 | r->delete_pressed(); | |
5ed1adf5 JH |
273 | break; |
274 | } | |
275 | } | |
276 | } | |
277 | ||
9e40e83d JH |
278 | void Header::on_signals_changed() |
279 | { | |
aa59d5c2 | 280 | for (shared_ptr<RowItem> r : _view) { |
eae6e30a JH |
281 | assert(r); |
282 | connect(r.get(), SIGNAL(visibility_changed()), | |
6f98ca4c | 283 | this, SLOT(on_trace_changed())); |
eae6e30a | 284 | connect(r.get(), SIGNAL(text_changed()), |
6f98ca4c | 285 | this, SLOT(on_trace_changed())); |
eae6e30a | 286 | connect(r.get(), SIGNAL(colour_changed()), |
91e8bf08 | 287 | this, SLOT(update())); |
9e40e83d JH |
288 | } |
289 | } | |
290 | ||
07204819 JH |
291 | void Header::on_signals_moved() |
292 | { | |
293 | update(); | |
294 | } | |
295 | ||
6f98ca4c | 296 | void Header::on_trace_changed() |
d7c0ca4a JH |
297 | { |
298 | update(); | |
299 | geometry_updated(); | |
300 | } | |
07204819 | 301 | |
1d8dca91 JH |
302 | } // namespace view |
303 | } // namespace pv |