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1 | /* | |
2 | * This file is part of the PulseView project. | |
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 | ||
24 | #include "signal.h" | |
25 | #include "../sigsession.h" | |
26 | ||
27 | #include <assert.h> | |
28 | ||
29 | #include <boost/foreach.hpp> | |
30 | ||
31 | #include <QApplication> | |
32 | #include <QColorDialog> | |
33 | #include <QInputDialog> | |
34 | #include <QMenu> | |
35 | #include <QMouseEvent> | |
36 | #include <QPainter> | |
37 | #include <QRect> | |
38 | ||
39 | using namespace boost; | |
40 | using namespace std; | |
41 | ||
42 | namespace pv { | |
43 | namespace view { | |
44 | ||
45 | Header::Header(View &parent) : | |
46 | MarginWidget(parent), | |
47 | _action_set_name(new QAction(tr("Set &Name..."), this)), | |
48 | _action_set_colour(new QAction(tr("Set &Colour..."), this)) | |
49 | { | |
50 | setMouseTracking(true); | |
51 | ||
52 | connect(_action_set_name, SIGNAL(triggered()), | |
53 | this, SLOT(on_action_set_name_triggered())); | |
54 | connect(_action_set_colour, SIGNAL(triggered()), | |
55 | this, SLOT(on_action_set_colour_triggered())); | |
56 | ||
57 | connect(&_view.session(), SIGNAL(signals_changed()), | |
58 | this, SLOT(on_signals_changed())); | |
59 | ||
60 | connect(&_view, SIGNAL(signals_moved()), | |
61 | this, SLOT(on_signals_moved())); | |
62 | } | |
63 | ||
64 | shared_ptr<Trace> Header::get_mouse_over_trace(const QPoint &pt) | |
65 | { | |
66 | const int w = width(); | |
67 | const vector< shared_ptr<Trace> > traces(_view.get_traces()); | |
68 | ||
69 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) | |
70 | { | |
71 | assert(t); | |
72 | if (t->pt_in_label_rect(0, w, pt)) | |
73 | return t; | |
74 | } | |
75 | ||
76 | return shared_ptr<Trace>(); | |
77 | } | |
78 | ||
79 | void Header::clear_selection() | |
80 | { | |
81 | const vector< shared_ptr<Trace> > traces(_view.get_traces()); | |
82 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) { | |
83 | assert(t); | |
84 | t->select(false); | |
85 | } | |
86 | ||
87 | update(); | |
88 | } | |
89 | ||
90 | void Header::paintEvent(QPaintEvent*) | |
91 | { | |
92 | const int w = width(); | |
93 | const vector< shared_ptr<Trace> > traces(_view.get_traces()); | |
94 | ||
95 | QPainter painter(this); | |
96 | painter.setRenderHint(QPainter::Antialiasing); | |
97 | ||
98 | const bool dragging = !_drag_traces.empty(); | |
99 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) | |
100 | { | |
101 | assert(t); | |
102 | ||
103 | const bool highlight = !dragging && t->pt_in_label_rect( | |
104 | 0, w, _mouse_point); | |
105 | t->paint_label(painter, w, highlight); | |
106 | } | |
107 | ||
108 | painter.end(); | |
109 | } | |
110 | ||
111 | void Header::mousePressEvent(QMouseEvent *event) | |
112 | { | |
113 | assert(event); | |
114 | ||
115 | const vector< shared_ptr<Trace> > traces(_view.get_traces()); | |
116 | ||
117 | if (event->button() & Qt::LeftButton) { | |
118 | _mouse_down_point = event->pos(); | |
119 | ||
120 | // Save the offsets of any signals which will be dragged | |
121 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) | |
122 | if (t->selected()) | |
123 | _drag_traces.push_back( | |
124 | make_pair(t, t->get_v_offset())); | |
125 | } | |
126 | ||
127 | // Select the signal if it has been clicked | |
128 | const shared_ptr<Trace> mouse_over_trace = | |
129 | get_mouse_over_trace(event->pos()); | |
130 | if (mouse_over_trace) { | |
131 | if (mouse_over_trace->selected()) | |
132 | mouse_over_trace->select(false); | |
133 | else { | |
134 | mouse_over_trace->select(true); | |
135 | ||
136 | if (~QApplication::keyboardModifiers() & | |
137 | Qt::ControlModifier) | |
138 | _drag_traces.clear(); | |
139 | ||
140 | // Add the signal to the drag list | |
141 | if (event->button() & Qt::LeftButton) | |
142 | _drag_traces.push_back( | |
143 | make_pair(mouse_over_trace, | |
144 | mouse_over_trace->get_v_offset())); | |
145 | } | |
146 | } | |
147 | ||
148 | if (~QApplication::keyboardModifiers() & Qt::ControlModifier) { | |
149 | // Unselect all other signals because the Ctrl is not | |
150 | // pressed | |
151 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) | |
152 | if (t != mouse_over_trace) | |
153 | t->select(false); | |
154 | } | |
155 | ||
156 | selection_changed(); | |
157 | update(); | |
158 | } | |
159 | ||
160 | void Header::mouseReleaseEvent(QMouseEvent *event) | |
161 | { | |
162 | assert(event); | |
163 | if (event->button() == Qt::LeftButton) { | |
164 | _drag_traces.clear(); | |
165 | _view.normalize_layout(); | |
166 | } | |
167 | } | |
168 | ||
169 | void Header::mouseMoveEvent(QMouseEvent *event) | |
170 | { | |
171 | assert(event); | |
172 | _mouse_point = event->pos(); | |
173 | ||
174 | // Move the signals if we are dragging | |
175 | if (!_drag_traces.empty()) { | |
176 | const int delta = event->pos().y() - _mouse_down_point.y(); | |
177 | ||
178 | for (std::list<std::pair<boost::weak_ptr<Trace>, | |
179 | int> >::iterator i = _drag_traces.begin(); | |
180 | i != _drag_traces.end(); i++) { | |
181 | const boost::shared_ptr<Trace> trace((*i).first); | |
182 | if (trace) { | |
183 | const int y = (*i).second + delta; | |
184 | const int y_snap = | |
185 | ((y + View::SignalSnapGridSize / 2) / | |
186 | View::SignalSnapGridSize) * | |
187 | View::SignalSnapGridSize; | |
188 | trace->set_v_offset(y_snap); | |
189 | ||
190 | // Ensure the trace is selected | |
191 | trace->select(); | |
192 | } | |
193 | ||
194 | } | |
195 | ||
196 | signals_moved(); | |
197 | } | |
198 | ||
199 | update(); | |
200 | } | |
201 | ||
202 | void Header::leaveEvent(QEvent*) | |
203 | { | |
204 | _mouse_point = QPoint(-1, -1); | |
205 | update(); | |
206 | } | |
207 | ||
208 | void Header::contextMenuEvent(QContextMenuEvent *event) | |
209 | { | |
210 | const shared_ptr<Trace> t = get_mouse_over_trace(_mouse_point); | |
211 | ||
212 | if (!t) | |
213 | return; | |
214 | ||
215 | QMenu menu(this); | |
216 | menu.addAction(_action_set_name); | |
217 | menu.addAction(_action_set_colour); | |
218 | ||
219 | _context_trace = t; | |
220 | menu.exec(event->globalPos()); | |
221 | _context_trace.reset(); | |
222 | } | |
223 | ||
224 | void Header::on_action_set_name_triggered() | |
225 | { | |
226 | bool ok = false; | |
227 | ||
228 | shared_ptr<view::Trace> context_trace = _context_trace; | |
229 | if (!context_trace) | |
230 | return; | |
231 | ||
232 | const QString new_label = QInputDialog::getText(this, tr("Set Name"), | |
233 | tr("Name"), QLineEdit::Normal, context_trace->get_name(), &ok); | |
234 | ||
235 | if (ok) | |
236 | context_trace->set_name(new_label); | |
237 | } | |
238 | ||
239 | void Header::on_action_set_colour_triggered() | |
240 | { | |
241 | shared_ptr<view::Trace> context_trace = _context_trace; | |
242 | if (!context_trace) | |
243 | return; | |
244 | ||
245 | const QColor new_colour = QColorDialog::getColor( | |
246 | context_trace->get_colour(), this, tr("Set Colour")); | |
247 | ||
248 | if (new_colour.isValid()) | |
249 | context_trace->set_colour(new_colour); | |
250 | } | |
251 | ||
252 | void Header::on_signals_changed() | |
253 | { | |
254 | const vector< shared_ptr<Trace> > traces(_view.get_traces()); | |
255 | BOOST_FOREACH(shared_ptr<Trace> t, traces) { | |
256 | assert(t); | |
257 | connect(t.get(), SIGNAL(text_changed()), this, SLOT(update())); | |
258 | } | |
259 | } | |
260 | ||
261 | void Header::on_signals_moved() | |
262 | { | |
263 | update(); | |
264 | } | |
265 | ||
266 | ||
267 | } // namespace view | |
268 | } // namespace pv |