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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 | ||
29 | #include <boost/foreach.hpp> | |
30 | ||
e3374498 | 31 | #include <QApplication> |
49f8ff3f | 32 | #include <QMenu> |
a29bb7fb | 33 | #include <QMouseEvent> |
1d8dca91 JH |
34 | #include <QPainter> |
35 | #include <QRect> | |
36 | ||
37 | using namespace boost; | |
38 | using namespace std; | |
39 | ||
40 | namespace pv { | |
41 | namespace view { | |
42 | ||
43 | Header::Header(View &parent) : | |
728fcafc JH |
44 | MarginWidget(parent), |
45 | _dragging(false) | |
1d8dca91 | 46 | { |
a29bb7fb | 47 | setMouseTracking(true); |
49f8ff3f | 48 | |
9e40e83d JH |
49 | connect(&_view.session(), SIGNAL(signals_changed()), |
50 | this, SLOT(on_signals_changed())); | |
51 | ||
07204819 JH |
52 | connect(&_view, SIGNAL(signals_moved()), |
53 | this, SLOT(on_signals_moved())); | |
1d8dca91 JH |
54 | } |
55 | ||
38eeddea | 56 | shared_ptr<Trace> Header::get_mouse_over_trace(const QPoint &pt) |
e3374498 JH |
57 | { |
58 | const int w = width(); | |
38eeddea | 59 | const vector< shared_ptr<Trace> > traces(_view.get_traces()); |
e3374498 | 60 | |
38eeddea | 61 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) |
e3374498 | 62 | { |
38eeddea | 63 | assert(t); |
01fd3263 | 64 | if (t->pt_in_label_rect(0, w, pt)) |
38eeddea | 65 | return t; |
e3374498 JH |
66 | } |
67 | ||
38eeddea | 68 | return shared_ptr<Trace>(); |
e3374498 JH |
69 | } |
70 | ||
a2ae0205 JH |
71 | void Header::clear_selection() |
72 | { | |
38eeddea JH |
73 | const vector< shared_ptr<Trace> > traces(_view.get_traces()); |
74 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) { | |
75 | assert(t); | |
76 | t->select(false); | |
a2ae0205 JH |
77 | } |
78 | ||
79 | update(); | |
80 | } | |
81 | ||
e314eca4 | 82 | void Header::paintEvent(QPaintEvent*) |
1d8dca91 JH |
83 | { |
84 | const int w = width(); | |
38eeddea | 85 | const vector< shared_ptr<Trace> > traces(_view.get_traces()); |
1d8dca91 JH |
86 | |
87 | QPainter painter(this); | |
88 | painter.setRenderHint(QPainter::Antialiasing); | |
89 | ||
38eeddea JH |
90 | const bool dragging = !_drag_traces.empty(); |
91 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) | |
1d8dca91 | 92 | { |
38eeddea | 93 | assert(t); |
1d8dca91 | 94 | |
38eeddea | 95 | const bool highlight = !dragging && t->pt_in_label_rect( |
01fd3263 JH |
96 | 0, w, _mouse_point); |
97 | t->paint_label(painter, w, highlight); | |
1d8dca91 JH |
98 | } |
99 | ||
100 | painter.end(); | |
101 | } | |
102 | ||
e3374498 JH |
103 | void Header::mousePressEvent(QMouseEvent *event) |
104 | { | |
105 | assert(event); | |
106 | ||
38eeddea | 107 | const vector< shared_ptr<Trace> > traces(_view.get_traces()); |
e3374498 | 108 | |
333d5bbc | 109 | if (event->button() & Qt::LeftButton) { |
54401bbb JH |
110 | _mouse_down_point = event->pos(); |
111 | ||
da2bebfb | 112 | // Save the offsets of any signals which will be dragged |
38eeddea JH |
113 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) |
114 | if (t->selected()) | |
115 | _drag_traces.push_back( | |
116 | make_pair(t, t->get_v_offset())); | |
da2bebfb JH |
117 | } |
118 | ||
119 | // Select the signal if it has been clicked | |
38eeddea JH |
120 | const shared_ptr<Trace> mouse_over_trace = |
121 | get_mouse_over_trace(event->pos()); | |
122 | if (mouse_over_trace) { | |
123 | if (mouse_over_trace->selected()) | |
124 | mouse_over_trace->select(false); | |
da2bebfb | 125 | else { |
38eeddea | 126 | mouse_over_trace->select(true); |
da2bebfb | 127 | |
333d5bbc | 128 | if (~QApplication::keyboardModifiers() & |
07204819 | 129 | Qt::ControlModifier) |
38eeddea | 130 | _drag_traces.clear(); |
07204819 | 131 | |
da2bebfb | 132 | // Add the signal to the drag list |
333d5bbc | 133 | if (event->button() & Qt::LeftButton) |
38eeddea JH |
134 | _drag_traces.push_back( |
135 | make_pair(mouse_over_trace, | |
136 | mouse_over_trace->get_v_offset())); | |
da2bebfb | 137 | } |
54401bbb JH |
138 | } |
139 | ||
333d5bbc | 140 | if (~QApplication::keyboardModifiers() & Qt::ControlModifier) { |
07204819 JH |
141 | // Unselect all other signals because the Ctrl is not |
142 | // pressed | |
38eeddea JH |
143 | BOOST_FOREACH(const shared_ptr<Trace> t, traces) |
144 | if (t != mouse_over_trace) | |
145 | t->select(false); | |
07204819 JH |
146 | } |
147 | ||
b2a53645 | 148 | selection_changed(); |
e3374498 JH |
149 | update(); |
150 | } | |
151 | ||
54401bbb JH |
152 | void Header::mouseReleaseEvent(QMouseEvent *event) |
153 | { | |
154 | assert(event); | |
333d5bbc | 155 | if (event->button() == Qt::LeftButton) { |
728fcafc | 156 | _dragging = false; |
38eeddea | 157 | _drag_traces.clear(); |
4b192962 JH |
158 | _view.normalize_layout(); |
159 | } | |
54401bbb JH |
160 | } |
161 | ||
a29bb7fb JH |
162 | void Header::mouseMoveEvent(QMouseEvent *event) |
163 | { | |
164 | assert(event); | |
165 | _mouse_point = event->pos(); | |
54401bbb | 166 | |
728fcafc JH |
167 | if (!(event->buttons() & Qt::LeftButton)) |
168 | return; | |
169 | ||
170 | if ((event->pos() - _mouse_down_point).manhattanLength() < | |
171 | QApplication::startDragDistance()) | |
172 | return; | |
173 | ||
54401bbb | 174 | // Move the signals if we are dragging |
728fcafc JH |
175 | if (!_drag_traces.empty()) |
176 | { | |
177 | _dragging = true; | |
178 | ||
54401bbb JH |
179 | const int delta = event->pos().y() - _mouse_down_point.y(); |
180 | ||
38eeddea JH |
181 | for (std::list<std::pair<boost::weak_ptr<Trace>, |
182 | int> >::iterator i = _drag_traces.begin(); | |
183 | i != _drag_traces.end(); i++) { | |
184 | const boost::shared_ptr<Trace> trace((*i).first); | |
185 | if (trace) { | |
da2bebfb | 186 | const int y = (*i).second + delta; |
49153683 JH |
187 | const int y_snap = |
188 | ((y + View::SignalSnapGridSize / 2) / | |
189 | View::SignalSnapGridSize) * | |
190 | View::SignalSnapGridSize; | |
38eeddea | 191 | trace->set_v_offset(y_snap); |
da2bebfb | 192 | |
38eeddea JH |
193 | // Ensure the trace is selected |
194 | trace->select(); | |
49153683 | 195 | } |
da2bebfb JH |
196 | |
197 | } | |
54401bbb JH |
198 | |
199 | signals_moved(); | |
200 | } | |
201 | ||
a29bb7fb JH |
202 | update(); |
203 | } | |
204 | ||
e314eca4 | 205 | void Header::leaveEvent(QEvent*) |
a29bb7fb JH |
206 | { |
207 | _mouse_point = QPoint(-1, -1); | |
208 | update(); | |
209 | } | |
210 | ||
49f8ff3f JH |
211 | void Header::contextMenuEvent(QContextMenuEvent *event) |
212 | { | |
38eeddea | 213 | const shared_ptr<Trace> t = get_mouse_over_trace(_mouse_point); |
49f8ff3f | 214 | |
9b6378f1 JH |
215 | if (t) |
216 | t->create_context_menu(this)->exec(event->globalPos()); | |
b3b57abc JH |
217 | } |
218 | ||
9e40e83d JH |
219 | void Header::on_signals_changed() |
220 | { | |
38eeddea JH |
221 | const vector< shared_ptr<Trace> > traces(_view.get_traces()); |
222 | BOOST_FOREACH(shared_ptr<Trace> t, traces) { | |
223 | assert(t); | |
224 | connect(t.get(), SIGNAL(text_changed()), this, SLOT(update())); | |
9e40e83d JH |
225 | } |
226 | } | |
227 | ||
07204819 JH |
228 | void Header::on_signals_moved() |
229 | { | |
230 | update(); | |
231 | } | |
232 | ||
233 | ||
1d8dca91 JH |
234 | } // namespace view |
235 | } // namespace pv |