projects/gui/src/chessclock.cpp

   1 /*
   2     This file is part of Cute Chess.
   3
   4     Cute Chess is free software: you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation, either version 3 of the License, or
   7     (at your option) any later version.
   8
   9     Cute Chess is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with Cute Chess.  If not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18 #include <QtGui>
  19 #include "chessclock.h"
  20
  21
  22 ChessClock::ChessClock(QWidget* parent)
  23         : QLCDNumber(parent),
  24           m_totalTime(0),
  25           m_timerId(-1)
  26 {
  27         setFrameShape(QFrame::NoFrame);
  28         setSegmentStyle(QLCDNumber::Flat);
  29 }
  30
  31 void ChessClock::start(int totalTime)
  32 {
  33         m_time.start();
  34         m_totalTime = totalTime;
  35         m_timerId = startTimer(1000);
  36         updateDisplay();
  37 }
  38
  39 void ChessClock::stop()
  40 {
  41         killTimer(m_timerId);
  42         updateDisplay();
  43 }
  44
  45 void ChessClock::updateDisplay()
  46 {
  47         int msLeft = m_totalTime - m_time.elapsed();
  48         QTime timeLeft = QTime().addMSecs(abs(msLeft));
  49
  50         QString format;
  51         if (timeLeft.hour() > 0)
  52                 format = "hh:mm:ss";
  53         else
  54                 format = "mm:ss";
  55
  56         QString str;
  57         if (msLeft < 0)
  58                 str += "-";
  59         str += timeLeft.toString(format);
  60         setNumDigits(str.length());
  61         display(str);
  62 }
  63
  64 void ChessClock::timerEvent(QTimerEvent* event)
  65 {
  66         if (!event)
  67                 return;
  68
  69         if (event->timerId() == m_timerId)
  70                 updateDisplay();
  71 }
  72