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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 JH |
26 | |
27 | #include <assert.h> | |
28 | ||
e3374498 | 29 | #include <QApplication> |
49f8ff3f | 30 | #include <QMenu> |
a29bb7fb | 31 | #include <QMouseEvent> |
1d8dca91 JH |
32 | #include <QPainter> |
33 | #include <QRect> | |
34 | ||
569d1e41 JH |
35 | #include <pv/widgets/popup.h> |
36 | ||
819f4c25 JH |
37 | using std::max; |
38 | using std::make_pair; | |
39 | using std::pair; | |
f9abf97e | 40 | using std::shared_ptr; |
819f4c25 | 41 | using std::vector; |
1d8dca91 JH |
42 | |
43 | namespace pv { | |
44 | namespace view { | |
45 | ||
d7c0ca4a | 46 | const int Header::Padding = 12; |
512bfc56 | 47 | const int Header::BaselineOffset = 5; |
d7c0ca4a | 48 | |
1d8dca91 | 49 | Header::Header(View &parent) : |
728fcafc JH |
50 | MarginWidget(parent), |
51 | _dragging(false) | |
1d8dca91 | 52 | { |
5ed1adf5 | 53 | setFocusPolicy(Qt::ClickFocus); |
a29bb7fb | 54 | setMouseTracking(true); |
49f8ff3f | 55 | |
9e40e83d JH |
56 | connect(&_view.session(), SIGNAL(signals_changed()), |
57 | this, SLOT(on_signals_changed())); | |
58 | ||
07204819 JH |
59 | connect(&_view, SIGNAL(signals_moved()), |
60 | this, SLOT(on_signals_moved())); | |
9f46d905 JH |
61 | |
62 | // Trigger the initial event manually. The default device has signals | |
63 | // which were created before this object came into being | |
64 | on_signals_changed(); | |
1d8dca91 JH |
65 | } |
66 | ||
d7c0ca4a JH |
67 | QSize Header::sizeHint() const |
68 | { | |
69 | int max_width = 0; | |
70 | ||
eae6e30a JH |
71 | const vector< shared_ptr<RowItem> > row_items(_view.child_items()); |
72 | for (shared_ptr<RowItem> r : row_items) { | |
73 | assert(r); | |
6f98ca4c | 74 | |
eae6e30a JH |
75 | if (r->enabled()) { |
76 | max_width = max(max_width, (int)r->label_rect(0).width()); | |
6f98ca4c | 77 | } |
d7c0ca4a JH |
78 | } |
79 | ||
512bfc56 | 80 | return QSize(max_width + Padding + BaselineOffset, 0); |
d7c0ca4a JH |
81 | } |
82 | ||
eae6e30a | 83 | shared_ptr<RowItem> Header::get_mouse_over_row_item(const QPoint &pt) |
e3374498 | 84 | { |
de0b46de | 85 | const int w = width() - BaselineOffset; |
eae6e30a | 86 | const vector< shared_ptr<RowItem> > row_items(_view.child_items()); |
e3374498 | 87 | |
eae6e30a | 88 | for (const shared_ptr<RowItem> r : row_items) |
e3374498 | 89 | { |
eae6e30a JH |
90 | assert(r); |
91 | if (r->enabled() && r->label_rect(w).contains(pt)) | |
92 | return r; | |
e3374498 JH |
93 | } |
94 | ||
eae6e30a | 95 | return shared_ptr<RowItem>(); |
e3374498 JH |
96 | } |
97 | ||
a2ae0205 JH |
98 | void Header::clear_selection() |
99 | { | |
eae6e30a JH |
100 | const vector< shared_ptr<RowItem> > row_items(_view.child_items()); |
101 | for (const shared_ptr<RowItem> r : row_items) { | |
102 | assert(r); | |
103 | r->select(false); | |
a2ae0205 JH |
104 | } |
105 | ||
106 | update(); | |
107 | } | |
108 | ||
e314eca4 | 109 | void Header::paintEvent(QPaintEvent*) |
1d8dca91 | 110 | { |
512bfc56 JS |
111 | // The trace labels are not drawn with the arrows exactly on the |
112 | // left edge of the widget, because then the selection shadow | |
113 | // would be clipped away. | |
114 | const int w = width() - BaselineOffset; | |
eae6e30a | 115 | const vector< shared_ptr<RowItem> > row_items(_view.child_items()); |
1d8dca91 JH |
116 | |
117 | QPainter painter(this); | |
118 | painter.setRenderHint(QPainter::Antialiasing); | |
119 | ||
eae6e30a JH |
120 | const bool dragging = !_drag_row_items.empty(); |
121 | for (const shared_ptr<RowItem> r : row_items) | |
1d8dca91 | 122 | { |
eae6e30a | 123 | assert(r); |
1d8dca91 | 124 | |
25201e88 | 125 | const bool highlight = !dragging && |
eae6e30a JH |
126 | r->label_rect(w).contains(_mouse_point); |
127 | r->paint_label(painter, w, highlight); | |
1d8dca91 JH |
128 | } |
129 | ||
130 | painter.end(); | |
131 | } | |
132 | ||
e3374498 JH |
133 | void Header::mousePressEvent(QMouseEvent *event) |
134 | { | |
135 | assert(event); | |
136 | ||
eae6e30a | 137 | const vector< shared_ptr<RowItem> > row_items(_view.child_items()); |
e3374498 | 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 |
eae6e30a JH |
143 | for (const shared_ptr<RowItem> r : row_items) |
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 | |
eae6e30a JH |
173 | for (const shared_ptr<RowItem> r : row_items) |
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 | { | |
569d1e41 JH |
184 | using pv::widgets::Popup; |
185 | ||
54401bbb | 186 | assert(event); |
333d5bbc | 187 | if (event->button() == Qt::LeftButton) { |
569d1e41 JH |
188 | if (_dragging) |
189 | _view.normalize_layout(); | |
190 | else | |
191 | { | |
eae6e30a JH |
192 | const shared_ptr<RowItem> mouse_over_row_item = |
193 | get_mouse_over_row_item(event->pos()); | |
194 | if (mouse_over_row_item) { | |
512bfc56 | 195 | const int w = width() - BaselineOffset; |
569d1e41 | 196 | Popup *const p = |
eae6e30a | 197 | mouse_over_row_item->create_popup(&_view); |
512bfc56 | 198 | p->set_position(mapToGlobal(QPoint(w, |
eae6e30a | 199 | mouse_over_row_item->get_y())), |
569d1e41 JH |
200 | Popup::Right); |
201 | p->show(); | |
202 | } | |
203 | } | |
204 | ||
728fcafc | 205 | _dragging = false; |
eae6e30a | 206 | _drag_row_items.clear(); |
4b192962 | 207 | } |
54401bbb JH |
208 | } |
209 | ||
a29bb7fb JH |
210 | void Header::mouseMoveEvent(QMouseEvent *event) |
211 | { | |
212 | assert(event); | |
213 | _mouse_point = event->pos(); | |
54401bbb | 214 | |
728fcafc JH |
215 | if (!(event->buttons() & Qt::LeftButton)) |
216 | return; | |
217 | ||
218 | if ((event->pos() - _mouse_down_point).manhattanLength() < | |
219 | QApplication::startDragDistance()) | |
220 | return; | |
221 | ||
54401bbb | 222 | // Move the signals if we are dragging |
eae6e30a | 223 | if (!_drag_row_items.empty()) |
728fcafc JH |
224 | { |
225 | _dragging = true; | |
226 | ||
54401bbb JH |
227 | const int delta = event->pos().y() - _mouse_down_point.y(); |
228 | ||
eae6e30a JH |
229 | for (auto i = _drag_row_items.begin(); |
230 | i != _drag_row_items.end(); i++) { | |
231 | const std::shared_ptr<RowItem> row_item((*i).first); | |
232 | if (row_item) { | |
da2bebfb | 233 | const int y = (*i).second + delta; |
49153683 JH |
234 | const int y_snap = |
235 | ((y + View::SignalSnapGridSize / 2) / | |
236 | View::SignalSnapGridSize) * | |
237 | View::SignalSnapGridSize; | |
eae6e30a | 238 | row_item->set_v_offset(y_snap); |
da2bebfb | 239 | |
38eeddea | 240 | // Ensure the trace is selected |
eae6e30a | 241 | row_item->select(); |
49153683 | 242 | } |
da2bebfb JH |
243 | |
244 | } | |
54401bbb JH |
245 | |
246 | signals_moved(); | |
247 | } | |
248 | ||
a29bb7fb JH |
249 | update(); |
250 | } | |
251 | ||
e314eca4 | 252 | void Header::leaveEvent(QEvent*) |
a29bb7fb JH |
253 | { |
254 | _mouse_point = QPoint(-1, -1); | |
255 | update(); | |
256 | } | |
257 | ||
49f8ff3f JH |
258 | void Header::contextMenuEvent(QContextMenuEvent *event) |
259 | { | |
eae6e30a | 260 | const shared_ptr<RowItem> r = get_mouse_over_row_item(_mouse_point); |
49f8ff3f | 261 | |
eae6e30a JH |
262 | if (r) |
263 | r->create_context_menu(this)->exec(event->globalPos()); | |
b3b57abc JH |
264 | } |
265 | ||
5ed1adf5 JH |
266 | void Header::keyPressEvent(QKeyEvent *e) |
267 | { | |
268 | assert(e); | |
269 | ||
270 | switch (e->key()) | |
271 | { | |
272 | case Qt::Key_Delete: | |
273 | { | |
eae6e30a JH |
274 | const vector< shared_ptr<RowItem> > row_items(_view.child_items()); |
275 | for (const shared_ptr<RowItem> r : row_items) | |
276 | if (r->selected()) | |
277 | r->delete_pressed(); | |
5ed1adf5 JH |
278 | break; |
279 | } | |
280 | } | |
281 | } | |
282 | ||
9e40e83d JH |
283 | void Header::on_signals_changed() |
284 | { | |
eae6e30a JH |
285 | const vector< shared_ptr<RowItem> > row_items(_view.child_items()); |
286 | for (shared_ptr<RowItem> r : row_items) { | |
287 | assert(r); | |
288 | connect(r.get(), SIGNAL(visibility_changed()), | |
6f98ca4c | 289 | this, SLOT(on_trace_changed())); |
eae6e30a | 290 | connect(r.get(), SIGNAL(text_changed()), |
6f98ca4c | 291 | this, SLOT(on_trace_changed())); |
eae6e30a | 292 | connect(r.get(), SIGNAL(colour_changed()), |
91e8bf08 | 293 | this, SLOT(update())); |
9e40e83d JH |
294 | } |
295 | } | |
296 | ||
07204819 JH |
297 | void Header::on_signals_moved() |
298 | { | |
299 | update(); | |
300 | } | |
301 | ||
6f98ca4c | 302 | void Header::on_trace_changed() |
d7c0ca4a JH |
303 | { |
304 | update(); | |
305 | geometry_updated(); | |
306 | } | |
07204819 | 307 | |
1d8dca91 JH |
308 | } // namespace view |
309 | } // namespace pv |