1 /***********************************************************************
2 *
3 * Copyright (C) 2016 wereturtle
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 *
18 ***********************************************************************/
19
20 #include <QTime>
21 #include <QTimer>
22 #include <QString>
23
24 #include "TimeLabel.h"
25
TimeLabel(QWidget * parent)26 TimeLabel::TimeLabel(QWidget* parent) :
27 QLabel(parent)
28 {
29 timer = new QTimer(this);
30 connect(timer, SIGNAL(timeout()), this, SLOT(updateTimeOfDay()));
31 this->updateTimeOfDay();
32 }
33
~TimeLabel()34 TimeLabel::~TimeLabel()
35 {
36
37 }
38
updateTimeOfDay()39 void TimeLabel::updateTimeOfDay()
40 {
41 QTime currentTime = QTime::currentTime();
42 this->setText(currentTime.toString(Qt::DefaultLocaleShortDate));
43
44 QTime nextTime = currentTime.addSecs(60);
45 nextTime.setHMS(nextTime.hour(), nextTime.minute(), 0);
46
47 // Set the timer as a single shot rather than a recurring 1000 ms
48 // interval, since we don't want the time to slowly drift away
49 // from being accurate due to small timer inaccuracies.
50 //
51 timer->setSingleShot(true);
52
53 int interval = currentTime.msecsTo(nextTime);
54
55 // Ensure interval is never negative.
56 if (interval <= 0)
57 {
58 interval = 1000;
59 }
60
61 timer->start(interval);
62 }
63
64
65