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Commit | Line | Data |
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6fa02541 | 1 | /* |
b3f22de0 | 2 | * This file is part of the PulseView project. |
6fa02541 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 | ||
cdf7bea7 JH |
21 | #include "view.h" |
22 | #include "viewport.h" | |
6fa02541 | 23 | |
8d634081 | 24 | #include "signal.h" |
51e77110 | 25 | #include "../sigsession.h" |
e3f65ace | 26 | |
7cd5faf8 | 27 | #include <QMouseEvent> |
e9c41f8c | 28 | |
e3f65ace JH |
29 | #include <boost/foreach.hpp> |
30 | ||
31 | using namespace boost; | |
32 | using namespace std; | |
33 | ||
cdf7bea7 JH |
34 | namespace pv { |
35 | namespace view { | |
e9c41f8c | 36 | |
cdf7bea7 | 37 | Viewport::Viewport(View &parent) : |
64b60583 | 38 | QWidget(&parent), |
adb4b10c | 39 | _view(parent) |
6fa02541 | 40 | { |
d7002724 | 41 | setMouseTracking(true); |
64b60583 JH |
42 | setAutoFillBackground(true); |
43 | setBackgroundRole(QPalette::Base); | |
07204819 JH |
44 | |
45 | connect(&_view, SIGNAL(signals_moved()), | |
46 | this, SLOT(on_signals_moved())); | |
d7002724 JH |
47 | } |
48 | ||
cdf7bea7 | 49 | int Viewport::get_total_height() const |
a429590b | 50 | { |
07204819 | 51 | int h = 0; |
3868e5fa JH |
52 | const vector< shared_ptr<Signal> > sigs( |
53 | _view.session().get_signals()); | |
54 | BOOST_FOREACH(const shared_ptr<Signal> s, sigs) { | |
adb4b10c | 55 | assert(s); |
07204819 | 56 | h = max(s->get_v_offset() + View::SignalHeight, h); |
adb4b10c JH |
57 | } |
58 | ||
07204819 | 59 | return h; |
a429590b JH |
60 | } |
61 | ||
e314eca4 | 62 | void Viewport::paintEvent(QPaintEvent*) |
d7002724 | 63 | { |
3868e5fa JH |
64 | const vector< shared_ptr<Signal> > sigs( |
65 | _view.session().get_signals()); | |
3e46726a | 66 | |
64b60583 | 67 | QPainter p(this); |
ce6e73a8 | 68 | p.setRenderHint(QPainter::Antialiasing); |
3e46726a | 69 | |
0ba172cf JH |
70 | if (_view.cursors_shown()) |
71 | _view.cursors().draw_viewport_background(p, rect()); | |
f76af637 | 72 | |
3e46726a | 73 | // Plot the signal |
2e575351 | 74 | const int v_offset = _view.v_offset(); |
3e46726a JH |
75 | BOOST_FOREACH(const shared_ptr<Signal> s, sigs) |
76 | { | |
77 | assert(s); | |
2658961b JH |
78 | s->paint(p, s->get_v_offset() - v_offset, 0, width(), |
79 | _view.scale(), _view.offset()); | |
3e46726a JH |
80 | } |
81 | ||
0ba172cf JH |
82 | if (_view.cursors_shown()) |
83 | _view.cursors().draw_viewport_foreground(p, rect()); | |
f76af637 | 84 | |
64b60583 | 85 | p.end(); |
6fa02541 | 86 | } |
009e1503 | 87 | |
cdf7bea7 | 88 | void Viewport::mousePressEvent(QMouseEvent *event) |
7cd5faf8 JH |
89 | { |
90 | assert(event); | |
1dd95c70 JH |
91 | |
92 | _mouse_down_point = event->pos(); | |
adb4b10c | 93 | _mouse_down_offset = _view.offset(); |
7cd5faf8 JH |
94 | } |
95 | ||
cdf7bea7 | 96 | void Viewport::mouseMoveEvent(QMouseEvent *event) |
7cd5faf8 JH |
97 | { |
98 | assert(event); | |
1dd95c70 | 99 | |
333d5bbc | 100 | if (event->buttons() & Qt::LeftButton) |
1dd95c70 | 101 | { |
adb4b10c JH |
102 | _view.set_scale_offset(_view.scale(), |
103 | _mouse_down_offset + | |
104 | (_mouse_down_point - event->pos()).x() * | |
105 | _view.scale()); | |
1dd95c70 | 106 | } |
7cd5faf8 JH |
107 | } |
108 | ||
cdf7bea7 | 109 | void Viewport::wheelEvent(QWheelEvent *event) |
1dd95c70 JH |
110 | { |
111 | assert(event); | |
ffd5cd20 AG |
112 | |
113 | if (event->orientation() == Qt::Vertical) { | |
114 | // Vertical scrolling is interpreted as zooming in/out | |
115 | _view.zoom(event->delta() / 120, event->x()); | |
23840406 AG |
116 | } else if (event->orientation() == Qt::Horizontal) { |
117 | // Horizontal scrolling is interpreted as moving left/right | |
118 | _view.set_scale_offset(_view.scale(), | |
119 | event->delta() * _view.scale() | |
120 | + _view.offset()); | |
ffd5cd20 | 121 | } |
7cd5faf8 JH |
122 | } |
123 | ||
07204819 JH |
124 | void Viewport::on_signals_moved() |
125 | { | |
126 | update(); | |
127 | } | |
128 | ||
cdf7bea7 JH |
129 | } // namespace view |
130 | } // namespace pv |