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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; |
adb4b10c | 52 | BOOST_FOREACH(const shared_ptr<Signal> s, |
1d19ef83 | 53 | _view.session().get_signals()) { |
adb4b10c | 54 | assert(s); |
07204819 | 55 | h = max(s->get_v_offset() + View::SignalHeight, h); |
adb4b10c JH |
56 | } |
57 | ||
07204819 | 58 | return h; |
a429590b JH |
59 | } |
60 | ||
cdf7bea7 | 61 | void Viewport::paintEvent(QPaintEvent *event) |
d7002724 | 62 | { |
e3f65ace | 63 | const vector< shared_ptr<Signal> > &sigs = |
1d19ef83 | 64 | _view.session().get_signals(); |
3e46726a | 65 | |
64b60583 | 66 | QPainter p(this); |
ce6e73a8 | 67 | p.setRenderHint(QPainter::Antialiasing); |
3e46726a | 68 | |
f76af637 JH |
69 | draw_cursors_background(p); |
70 | ||
3e46726a | 71 | // Plot the signal |
2e575351 | 72 | const int v_offset = _view.v_offset(); |
3e46726a JH |
73 | BOOST_FOREACH(const shared_ptr<Signal> s, sigs) |
74 | { | |
75 | assert(s); | |
76 | ||
2e575351 | 77 | const QRect signal_rect(0, s->get_v_offset() - v_offset, |
1d8dca91 | 78 | width(), View::SignalHeight); |
3e46726a | 79 | |
64b60583 | 80 | s->paint(p, signal_rect, _view.scale(), _view.offset()); |
3e46726a JH |
81 | } |
82 | ||
f76af637 JH |
83 | draw_cursors_foreground(p); |
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 JH |
99 | |
100 | if(event->buttons() & Qt::LeftButton) | |
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::mouseReleaseEvent(QMouseEvent *event) |
7cd5faf8 JH |
110 | { |
111 | assert(event); | |
1dd95c70 | 112 | } |
7cd5faf8 | 113 | |
cdf7bea7 | 114 | void Viewport::wheelEvent(QWheelEvent *event) |
1dd95c70 JH |
115 | { |
116 | assert(event); | |
1d8dca91 | 117 | _view.zoom(event->delta() / 120, event->x()); |
7cd5faf8 JH |
118 | } |
119 | ||
f76af637 JH |
120 | void Viewport::draw_cursors_background(QPainter &p) |
121 | { | |
122 | if(!_view.cursors_shown()) | |
123 | return; | |
124 | ||
125 | p.setPen(Qt::NoPen); | |
126 | p.setBrush(QBrush(View::CursorAreaColour)); | |
127 | ||
128 | const pair<Cursor, Cursor> &c = _view.cursors(); | |
129 | const float x1 = (c.first.time() - _view.offset()) / _view.scale(); | |
130 | const float x2 = (c.second.time() - _view.offset()) / _view.scale(); | |
131 | const int l = (int)max(min(x1, x2), 0.0f); | |
132 | const int r = (int)min(max(x1, x2), (float)width()); | |
133 | ||
134 | p.drawRect(l, 0, r - l, height()); | |
135 | } | |
136 | ||
137 | void Viewport::draw_cursors_foreground(QPainter &p) | |
138 | { | |
139 | if(!_view.cursors_shown()) | |
140 | return; | |
141 | ||
142 | const QRect r = rect(); | |
143 | pair<Cursor, Cursor> &cursors = _view.cursors(); | |
144 | cursors.first.paint(p, r); | |
145 | cursors.second.paint(p, r); | |
146 | } | |
147 | ||
07204819 JH |
148 | void Viewport::on_signals_moved() |
149 | { | |
150 | update(); | |
151 | } | |
152 | ||
cdf7bea7 JH |
153 | } // namespace view |
154 | } // namespace pv |