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1 | /* |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2015 Jens Steinhauser <jens.steinhauser@gmail.com> | |
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 | |
efdec55a | 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
806d3e1e JS |
18 | */ |
19 | ||
20 | #include "timestampspinbox.hpp" | |
21 | ||
22 | #include <QLineEdit> | |
23 | #include <QRegExp> | |
24 | ||
25 | namespace pv { | |
26 | namespace widgets { | |
27 | ||
28 | TimestampSpinBox::TimestampSpinBox(QWidget* parent) | |
29 | : QAbstractSpinBox(parent) | |
30 | , precision_(9) | |
31 | , stepsize_("1e-6") | |
32 | { | |
33 | connect(this, SIGNAL(editingFinished()), this, SLOT(on_editingFinished())); | |
34 | ||
35 | updateEdit(); | |
36 | } | |
37 | ||
38 | void TimestampSpinBox::stepBy(int steps) | |
39 | { | |
40 | setValue(value_ + steps * stepsize_); | |
41 | } | |
42 | ||
43 | QAbstractSpinBox::StepEnabled TimestampSpinBox::stepEnabled() const | |
44 | { | |
45 | return QAbstractSpinBox::StepUpEnabled | QAbstractSpinBox::StepDownEnabled; | |
46 | } | |
47 | ||
48 | unsigned TimestampSpinBox::precision() const | |
49 | { | |
50 | return precision_; | |
51 | } | |
52 | ||
53 | void TimestampSpinBox::setPrecision(unsigned precision) | |
54 | { | |
55 | precision_ = precision; | |
56 | updateEdit(); | |
57 | } | |
58 | ||
59 | const pv::util::Timestamp& TimestampSpinBox::singleStep() const | |
60 | { | |
61 | return stepsize_; | |
62 | } | |
63 | ||
64 | void TimestampSpinBox::setSingleStep(const pv::util::Timestamp& step) | |
65 | { | |
66 | stepsize_ = step; | |
67 | } | |
68 | ||
69 | const pv::util::Timestamp& TimestampSpinBox::value() const | |
70 | { | |
71 | return value_; | |
72 | } | |
73 | ||
74 | QSize TimestampSpinBox::minimumSizeHint() const | |
75 | { | |
76 | const QFontMetrics fm(fontMetrics()); | |
77 | const int l = round(value_).str().size() + precision_ + 10; | |
78 | const int w = fm.width(QString(l, '0')); | |
79 | const int h = lineEdit()->minimumSizeHint().height(); | |
80 | return QSize(w, h); | |
81 | } | |
82 | ||
83 | void TimestampSpinBox::setValue(const pv::util::Timestamp& val) | |
84 | { | |
85 | if (val == value_) | |
86 | return; | |
87 | ||
88 | value_ = val; | |
89 | updateEdit(); | |
90 | Q_EMIT valueChanged(value_); | |
91 | } | |
92 | ||
93 | void TimestampSpinBox::on_editingFinished() | |
94 | { | |
95 | if (!lineEdit()->isModified()) | |
96 | return; | |
97 | lineEdit()->setModified(false); | |
98 | ||
99 | QRegExp re(R"(\s*([-+]?)\s*([0-9]+\.?[0-9]*).*)"); | |
100 | ||
101 | if (re.exactMatch(text())) { | |
102 | QStringList captures = re.capturedTexts(); | |
103 | captures.removeFirst(); // remove entire match | |
104 | QString str = captures.join(""); | |
105 | setValue(pv::util::Timestamp(str.toStdString())); | |
2ad82c2e | 106 | } else { |
806d3e1e JS |
107 | // replace the malformed entered string with the old value |
108 | updateEdit(); | |
109 | } | |
110 | } | |
111 | ||
112 | void TimestampSpinBox::updateEdit() | |
113 | { | |
3ccf0f7f JS |
114 | QString newtext = pv::util::format_time_si( |
115 | value_, pv::util::SIPrefix::none, precision_); | |
806d3e1e JS |
116 | lineEdit()->setText(newtext); |
117 | } | |
118 | ||
870ea3db UH |
119 | } // namespace widgets |
120 | } // namespace pv |