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