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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 | const int v_offset = _view.v_offset(); | |
70 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) | |
71 | { | |
72 | assert(t); | |
73 | ||
74 | if (t->pt_in_label_rect(t->get_v_offset() - v_offset, | |
75 | 0, w, pt)) | |
76 | return t; | |
77 | } | |
78 | ||
79 | return shared_ptr<Trace>(); | |
80 | } | |
81 | ||
82 | void Header::clear_selection() | |
83 | { | |
84 | const vector< shared_ptr<Trace> > traces(_view.get_traces()); | |
85 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) { | |
86 | assert(t); | |
87 | t->select(false); | |
88 | } | |
89 | ||
90 | update(); | |
91 | } | |
92 | ||
93 | void Header::paintEvent(QPaintEvent*) | |
94 | { | |
95 | const int w = width(); | |
96 | const vector< shared_ptr<Trace> > traces(_view.get_traces()); | |
97 | ||
98 | QPainter painter(this); | |
99 | painter.setRenderHint(QPainter::Antialiasing); | |
100 | ||
101 | const int v_offset = _view.v_offset(); | |
102 | const bool dragging = !_drag_traces.empty(); | |
103 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) | |
104 | { | |
105 | assert(t); | |
106 | ||
107 | const int y = t->get_v_offset() - v_offset; | |
108 | const bool highlight = !dragging && t->pt_in_label_rect( | |
109 | y, 0, w, _mouse_point); | |
110 | t->paint_label(painter, y, w, highlight); | |
111 | } | |
112 | ||
113 | painter.end(); | |
114 | } | |
115 | ||
116 | void Header::mousePressEvent(QMouseEvent *event) | |
117 | { | |
118 | assert(event); | |
119 | ||
120 | const vector< shared_ptr<Trace> > traces(_view.get_traces()); | |
121 | ||
122 | if (event->button() & Qt::LeftButton) { | |
123 | _mouse_down_point = event->pos(); | |
124 | ||
125 | // Save the offsets of any signals which will be dragged | |
126 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) | |
127 | if (t->selected()) | |
128 | _drag_traces.push_back( | |
129 | make_pair(t, t->get_v_offset())); | |
130 | } | |
131 | ||
132 | // Select the signal if it has been clicked | |
133 | const shared_ptr<Trace> mouse_over_trace = | |
134 | get_mouse_over_trace(event->pos()); | |
135 | if (mouse_over_trace) { | |
136 | if (mouse_over_trace->selected()) | |
137 | mouse_over_trace->select(false); | |
138 | else { | |
139 | mouse_over_trace->select(true); | |
140 | ||
141 | if (~QApplication::keyboardModifiers() & | |
142 | Qt::ControlModifier) | |
143 | _drag_traces.clear(); | |
144 | ||
145 | // Add the signal to the drag list | |
146 | if (event->button() & Qt::LeftButton) | |
147 | _drag_traces.push_back( | |
148 | make_pair(mouse_over_trace, | |
149 | mouse_over_trace->get_v_offset())); | |
150 | } | |
151 | } | |
152 | ||
153 | if (~QApplication::keyboardModifiers() & Qt::ControlModifier) { | |
154 | // Unselect all other signals because the Ctrl is not | |
155 | // pressed | |
156 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) | |
157 | if (t != mouse_over_trace) | |
158 | t->select(false); | |
159 | } | |
160 | ||
161 | selection_changed(); | |
162 | update(); | |
163 | } | |
164 | ||
165 | void Header::mouseReleaseEvent(QMouseEvent *event) | |
166 | { | |
167 | assert(event); | |
168 | if (event->button() == Qt::LeftButton) { | |
169 | _drag_traces.clear(); | |
170 | _view.normalize_layout(); | |
171 | } | |
172 | } | |
173 | ||
174 | void Header::mouseMoveEvent(QMouseEvent *event) | |
175 | { | |
176 | assert(event); | |
177 | _mouse_point = event->pos(); | |
178 | ||
179 | // Move the signals if we are dragging | |
180 | if (!_drag_traces.empty()) { | |
181 | const int delta = event->pos().y() - _mouse_down_point.y(); | |
182 | ||
183 | for (std::list<std::pair<boost::weak_ptr<Trace>, | |
184 | int> >::iterator i = _drag_traces.begin(); | |
185 | i != _drag_traces.end(); i++) { | |
186 | const boost::shared_ptr<Trace> trace((*i).first); | |
187 | if (trace) { | |
188 | const int y = (*i).second + delta; | |
189 | const int y_snap = | |
190 | ((y + View::SignalSnapGridSize / 2) / | |
191 | View::SignalSnapGridSize) * | |
192 | View::SignalSnapGridSize; | |
193 | trace->set_v_offset(y_snap); | |
194 | ||
195 | // Ensure the trace is selected | |
196 | trace->select(); | |
197 | } | |
198 | ||
199 | } | |
200 | ||
201 | signals_moved(); | |
202 | } | |
203 | ||
204 | update(); | |
205 | } | |
206 | ||
207 | void Header::leaveEvent(QEvent*) | |
208 | { | |
209 | _mouse_point = QPoint(-1, -1); | |
210 | update(); | |
211 | } | |
212 | ||
213 | void Header::contextMenuEvent(QContextMenuEvent *event) | |
214 | { | |
215 | const shared_ptr<Trace> t = get_mouse_over_trace(_mouse_point); | |
216 | ||
217 | if (!t) | |
218 | return; | |
219 | ||
220 | QMenu menu(this); | |
221 | menu.addAction(_action_set_name); | |
222 | menu.addAction(_action_set_colour); | |
223 | ||
224 | _context_trace = t; | |
225 | menu.exec(event->globalPos()); | |
226 | _context_trace.reset(); | |
227 | } | |
228 | ||
229 | void Header::on_action_set_name_triggered() | |
230 | { | |
231 | bool ok = false; | |
232 | ||
233 | shared_ptr<view::Trace> context_trace = _context_trace; | |
234 | if (!context_trace) | |
235 | return; | |
236 | ||
237 | const QString new_label = QInputDialog::getText(this, tr("Set Name"), | |
238 | tr("Name"), QLineEdit::Normal, context_trace->get_name(), &ok); | |
239 | ||
240 | if (ok) | |
241 | context_trace->set_name(new_label); | |
242 | } | |
243 | ||
244 | void Header::on_action_set_colour_triggered() | |
245 | { | |
246 | shared_ptr<view::Trace> context_trace = _context_trace; | |
247 | if (!context_trace) | |
248 | return; | |
249 | ||
250 | const QColor new_colour = QColorDialog::getColor( | |
251 | context_trace->get_colour(), this, tr("Set Colour")); | |
252 | ||
253 | if (new_colour.isValid()) | |
254 | context_trace->set_colour(new_colour); | |
255 | } | |
256 | ||
257 | void Header::on_signals_changed() | |
258 | { | |
259 | const vector< shared_ptr<Trace> > traces(_view.get_traces()); | |
260 | BOOST_FOREACH(shared_ptr<Trace> t, traces) { | |
261 | assert(t); | |
262 | connect(t.get(), SIGNAL(text_changed()), this, SLOT(update())); | |
263 | } | |
264 | } | |
265 | ||
266 | void Header::on_signals_moved() | |
267 | { | |
268 | update(); | |
269 | } | |
270 | ||
271 | ||
272 | } // namespace view | |
273 | } // namespace pv |