]>
Commit | Line | Data |
---|---|---|
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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include "cursor.hpp" | |
21 | ||
22 | #include "ruler.hpp" | |
23 | #include "view.hpp" | |
24 | #include "pv/util.hpp" | |
25 | ||
26 | #include <QApplication> | |
27 | #include <QBrush> | |
28 | #include <QPainter> | |
29 | #include <QPointF> | |
30 | #include <QRect> | |
31 | #include <QRectF> | |
32 | ||
33 | #include <cassert> | |
34 | #include <cstdio> | |
35 | #include <limits> | |
36 | ||
37 | using std::abs; | |
38 | using std::shared_ptr; | |
39 | using std::numeric_limits; | |
40 | ||
41 | namespace pv { | |
42 | namespace views { | |
43 | namespace TraceView { | |
44 | ||
45 | const QColor Cursor::FillColour(52, 101, 164); | |
46 | ||
47 | Cursor::Cursor(View &view, double time) : | |
48 | TimeMarker(view, FillColour, time) | |
49 | { | |
50 | } | |
51 | ||
52 | bool Cursor::enabled() const | |
53 | { | |
54 | return view_.cursors_shown(); | |
55 | } | |
56 | ||
57 | QString Cursor::get_text() const | |
58 | { | |
59 | const shared_ptr<Cursor> other = get_other_cursor(); | |
60 | const pv::util::Timestamp& diff = abs(time_ - other->time_); | |
61 | ||
62 | return Ruler::format_time_with_distance( | |
63 | diff, time_, view_.tick_prefix(), view_.time_unit(), view_.tick_precision()); | |
64 | } | |
65 | ||
66 | QRectF Cursor::label_rect(const QRectF &rect) const | |
67 | { | |
68 | const shared_ptr<Cursor> other(get_other_cursor()); | |
69 | assert(other); | |
70 | ||
71 | const float x = ((time_ - view_.offset())/ view_.scale()).convert_to<float>(); | |
72 | ||
73 | QFontMetrics m(QApplication::font()); | |
74 | QSize text_size = m.boundingRect(get_text()).size(); | |
75 | ||
76 | const QSizeF label_size( | |
77 | text_size.width() + LabelPadding.width() * 2, | |
78 | text_size.height() + LabelPadding.height() * 2); | |
79 | const float top = rect.height() - label_size.height() - | |
80 | TimeMarker::ArrowSize - 0.5f; | |
81 | const float height = label_size.height(); | |
82 | ||
83 | const pv::util::Timestamp& other_time = other->time(); | |
84 | ||
85 | if (time_ > other_time || | |
86 | (abs(time_ - other_time).is_zero() && this > other.get())) | |
87 | return QRectF(x, top, label_size.width(), height); | |
88 | else | |
89 | return QRectF(x - label_size.width(), top, label_size.width(), height); | |
90 | } | |
91 | ||
92 | shared_ptr<Cursor> Cursor::get_other_cursor() const | |
93 | { | |
94 | const shared_ptr<CursorPair> cursors(view_.cursors()); | |
95 | assert(cursors); | |
96 | return (cursors->first().get() == this) ? | |
97 | cursors->second() : cursors->first(); | |
98 | } | |
99 | ||
100 | } // namespace TraceView | |
101 | } // namespace views | |
102 | } // namespace pv |