mirror of
https://github.com/pyqt/examples.git
synced 2025-08-22 17:47:10 +00:00
190 lines
6.1 KiB
Python
190 lines
6.1 KiB
Python
|
#!/usr/bin/env python
|
||
|
|
||
|
|
||
|
#############################################################################
|
||
|
##
|
||
|
## Copyright (C) 2013 Riverbank Computing Limited.
|
||
|
## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
|
||
|
## All rights reserved.
|
||
|
##
|
||
|
## This file is part of the examples of PyQt.
|
||
|
##
|
||
|
## $QT_BEGIN_LICENSE:BSD$
|
||
|
## You may use this file under the terms of the BSD license as follows:
|
||
|
##
|
||
|
## "Redistribution and use in source and binary forms, with or without
|
||
|
## modification, are permitted provided that the following conditions are
|
||
|
## met:
|
||
|
## * Redistributions of source code must retain the above copyright
|
||
|
## notice, this list of conditions and the following disclaimer.
|
||
|
## * Redistributions in binary form must reproduce the above copyright
|
||
|
## notice, this list of conditions and the following disclaimer in
|
||
|
## the documentation and/or other materials provided with the
|
||
|
## distribution.
|
||
|
## * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
|
||
|
## the names of its contributors may be used to endorse or promote
|
||
|
## products derived from this software without specific prior written
|
||
|
## permission.
|
||
|
##
|
||
|
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||
|
## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||
|
## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||
|
## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||
|
## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||
|
## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||
|
## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||
|
## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||
|
## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||
|
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
|
||
|
## $QT_END_LICENSE$
|
||
|
##
|
||
|
#############################################################################
|
||
|
|
||
|
|
||
|
from PyQt5.QtCore import (pyqtProperty, pyqtSignal, pyqtSlot, QPoint, QSize,
|
||
|
Qt, QTime, QTimer)
|
||
|
from PyQt5.QtGui import QBrush, QColor, QPainter, QPen, QPolygon
|
||
|
from PyQt5.QtWidgets import QApplication, QWidget
|
||
|
|
||
|
|
||
|
class PyAnalogClock(QWidget):
|
||
|
"""PyAnalogClock(QWidget)
|
||
|
|
||
|
Provides an analog clock custom widget with signals, slots and properties.
|
||
|
The implementation is based on the Analog Clock example provided with both
|
||
|
Qt and PyQt.
|
||
|
"""
|
||
|
|
||
|
# Emitted when the clock's time changes.
|
||
|
timeChanged = pyqtSignal(QTime)
|
||
|
|
||
|
# Emitted when the clock's time zone changes.
|
||
|
timeZoneChanged = pyqtSignal(int)
|
||
|
|
||
|
def __init__(self, parent=None):
|
||
|
|
||
|
super(PyAnalogClock, self).__init__(parent)
|
||
|
|
||
|
self.timeZoneOffset = 0
|
||
|
|
||
|
timer = QTimer(self)
|
||
|
timer.timeout.connect(self.update)
|
||
|
timer.timeout.connect(self.updateTime)
|
||
|
timer.start(1000)
|
||
|
|
||
|
self.setWindowTitle("Analog Clock")
|
||
|
self.resize(200, 200)
|
||
|
|
||
|
self.hourHand = QPolygon([
|
||
|
QPoint(7, 8),
|
||
|
QPoint(-7, 8),
|
||
|
QPoint(0, -40)
|
||
|
])
|
||
|
self.minuteHand = QPolygon([
|
||
|
QPoint(7, 8),
|
||
|
QPoint(-7, 8),
|
||
|
QPoint(0, -70)
|
||
|
])
|
||
|
|
||
|
self.hourColor = QColor(0, 127, 0)
|
||
|
self.minuteColor = QColor(0, 127, 127, 191)
|
||
|
|
||
|
def paintEvent(self, event):
|
||
|
|
||
|
side = min(self.width(), self.height())
|
||
|
time = QTime.currentTime()
|
||
|
time = time.addSecs(self.timeZoneOffset * 3600)
|
||
|
|
||
|
painter = QPainter()
|
||
|
painter.begin(self)
|
||
|
painter.setRenderHint(QPainter.Antialiasing)
|
||
|
painter.translate(self.width() / 2, self.height() / 2)
|
||
|
painter.scale(side / 200.0, side / 200.0)
|
||
|
|
||
|
painter.setPen(Qt.NoPen)
|
||
|
painter.setBrush(QBrush(self.hourColor))
|
||
|
|
||
|
painter.save()
|
||
|
painter.rotate(30.0 * ((time.hour() + time.minute() / 60.0)))
|
||
|
painter.drawConvexPolygon(self.hourHand)
|
||
|
painter.restore()
|
||
|
|
||
|
painter.setPen(self.hourColor)
|
||
|
|
||
|
for i in range(0, 12):
|
||
|
painter.drawLine(88, 0, 96, 0)
|
||
|
painter.rotate(30.0)
|
||
|
|
||
|
painter.setPen(Qt.NoPen)
|
||
|
painter.setBrush(QBrush(self.minuteColor))
|
||
|
|
||
|
painter.save()
|
||
|
painter.rotate(6.0 * (time.minute() + time.second() / 60.0))
|
||
|
painter.drawConvexPolygon(self.minuteHand)
|
||
|
painter.restore()
|
||
|
|
||
|
painter.setPen(QPen(self.minuteColor))
|
||
|
|
||
|
for j in range(0, 60):
|
||
|
if (j % 5) != 0:
|
||
|
painter.drawLine(92, 0, 96, 0)
|
||
|
painter.rotate(6.0)
|
||
|
|
||
|
painter.end()
|
||
|
|
||
|
def minimumSizeHint(self):
|
||
|
|
||
|
return QSize(50, 50)
|
||
|
|
||
|
def sizeHint(self):
|
||
|
|
||
|
return QSize(100, 100)
|
||
|
|
||
|
def updateTime(self):
|
||
|
|
||
|
self.timeChanged.emit(QTime.currentTime())
|
||
|
|
||
|
# The timeZone property is implemented using the getTimeZone() getter
|
||
|
# method, the setTimeZone() setter method, and the resetTimeZone() method.
|
||
|
|
||
|
# The getter just returns the internal time zone value.
|
||
|
def getTimeZone(self):
|
||
|
|
||
|
return self.timeZoneOffset
|
||
|
|
||
|
# The setTimeZone() method is also defined to be a slot. The @pyqtSlot
|
||
|
# decorator is used to tell PyQt which argument type the method expects,
|
||
|
# and is especially useful when you want to define slots with the same
|
||
|
# name that accept different argument types.
|
||
|
|
||
|
@pyqtSlot(int)
|
||
|
def setTimeZone(self, value):
|
||
|
|
||
|
self.timeZoneOffset = value
|
||
|
self.timeZoneChanged.emit(value)
|
||
|
self.update()
|
||
|
|
||
|
# Qt's property system supports properties that can be reset to their
|
||
|
# original values. This method enables the timeZone property to be reset.
|
||
|
def resetTimeZone(self):
|
||
|
|
||
|
self.timeZoneOffset = 0
|
||
|
self.timeZoneChanged.emit(0)
|
||
|
self.update()
|
||
|
|
||
|
# Qt-style properties are defined differently to Python's properties.
|
||
|
# To declare a property, we call pyqtProperty() to specify the type and,
|
||
|
# in this case, getter, setter and resetter methods.
|
||
|
timeZone = pyqtProperty(int, getTimeZone, setTimeZone, resetTimeZone)
|
||
|
|
||
|
|
||
|
if __name__ == "__main__":
|
||
|
|
||
|
import sys
|
||
|
|
||
|
app = QApplication(sys.argv)
|
||
|
clock = PyAnalogClock()
|
||
|
clock.show()
|
||
|
sys.exit(app.exec_())
|