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#!/usr/bin/python
# QStopWatch -- a very simple stop watch
# Copyright (C) 2006 Dominic Battre <dominic {at} battre {dot} de>
# Copyright (C) 2013 ActivityWorkshop.net
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this program; if not, write to the Free
# Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# Versions:
# 2006-11-18 version 1.0 - simple but fully functional stop watch
# 2006-11-18 version 1.0.1 - fixed problem with QString vs. Python string
# Obtained from http://kde-apps.org/content/show.php/QStopWatch?content=48810
# 2013-06-19 version 1.1 - ported to python 2.7, qt4; used QLCDNumber for time display
import sys
from PyQt4 import QtGui, QtCore
class MainWindow(QtGui.QMainWindow):
DEFAULT_WINDOW_TITLE = "Stopwatch"
def __init__(self, *args):
apply(QtGui.QMainWindow.__init__, (self,) + args)
self.mainWidget = QtGui.QWidget(self);
self.setCentralWidget(self.mainWidget);
self.mainLayout = QtGui.QVBoxLayout(self.mainWidget)
self.buttonsWidget = QtGui.QWidget(self.mainWidget);
self.buttonsLayout = QtGui.QHBoxLayout(self.buttonsWidget)
self.txTime = QtGui.QLCDNumber(self.mainWidget);
self.txTime.setSegmentStyle(QtGui.QLCDNumber.Flat);
self.bnStart = QtGui.QPushButton("&Start", self.buttonsWidget);
self.bnClear = QtGui.QPushButton("&Clear", self.buttonsWidget);
self.connect(self.bnStart, QtCore.SIGNAL("clicked()"), self.slotBnStartClicked)
self.connect(self.bnClear, QtCore.SIGNAL("clicked()"), self.slotBnClearClicked)
self.buttonsLayout.addWidget(self.bnStart);
self.buttonsLayout.addWidget(self.bnClear);
self.mainLayout.addWidget(self.txTime);
self.mainLayout.addWidget(self.buttonsWidget);
self.counting = False;
self.msInLastLaps = 0;
self.timer = QtCore.QTimer(self);
self.connect(self.timer, QtCore.SIGNAL("timeout()"), self.slotTimerEvent);
self.displayTime(0, False)
self.setWindowTitle(self.DEFAULT_WINDOW_TITLE)
# reduce to minimum size
self.resize(self.minimumSizeHint())
def displayTime(self, msecs, exact):
ms = msecs % 1000
msecs /= 1000
sec = msecs % 60
msecs /= 60
min = msecs % 60
msecs /= 60
hours = msecs
if exact:
timestring = ‘%02d:%02d:%02d.%03d‘ % (hours, min, sec, ms)
self.txTime.setNumDigits(12 if hours > 0 else 9)
self.txTime.display(timestring)
self.setWindowTitle(self.DEFAULT_WINDOW_TITLE)
else:
timestring = ‘%02d:%02d:%02d‘ % (hours, min, sec)
self.txTime.setNumDigits(8 if hours > 0 else 5)
self.txTime.display(timestring)
self.setWindowTitle(timestring)
def slotBnStartClicked(self):
if ( self.counting ) :
print "stop ", str(QtCore.QTime.currentTime().toString())
self.timer.stop();
self.msInLastLaps += self.startTime.msecsTo(QtCore.QTime.currentTime());
self.displayTime(self.msInLastLaps, True)
self.bnStart.setText("&Start")
else:
self.startTime = QtCore.QTime.currentTime()
print "start ", str(self.startTime.toString())
self.timer.start(500)
self.bnStart.setText("&Stop")
self.slotTimerEvent()
self.counting = not self.counting
def slotBnClearClicked(self):
print "clear";
self.msInLastLaps = 0;
self.startTime = QtCore.QTime.currentTime()
self.displayTime(0, not self.counting)
def slotTimerEvent(self):
self.displayTime(self.msInLastLaps + self.startTime.msecsTo(QtCore.QTime.currentTime()), False)
# Main method as the program entry point
def main(args):
app = QtGui.QApplication(args)
win = MainWindow()
win.show()
app.connect(app, QtCore.SIGNAL("lastWindowClosed()"), app, QtCore.SLOT("quit()"))
app.exec_()
if __name__=="__main__":
main(sys.argv)
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原文地址：http://www.cnblogs.com/mhxy13867806343/p/4200929.html
