PyQt5 QCalendarWidget 设置定时器事件
在这篇文章中,我们将看到如何为QCalendarWidget实现定时器事件。当日历的startTimer间隔结束时,一个定时器事件被发送到日历上。这个事件处理程序可以在一个子类中重新实现,以接收在事件参数中传递的日历启动计时器事件。
下面是日历类的代码
# QCalendarWidget Class
class Calendar(QCalendarWidget):
# constructor
def __init__(self, parent=None):
super(Calendar, self).__init__(parent)
# overriding the timer event
# this will show the next month
def timerEvent(self, event):
# show the next month
window.calendar.showNextMonth()
实施步骤:
1.创建一个继承了QCalendarWidget的日历类
2.在日历类中覆盖timerEvent,在事件中显示下个月的日历
3.创建一个主窗口类
4.在主窗口中创建一个日历对象
5.为日历设置各种属性
下面是实现的过程
# importing libraries
from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import sys
# QCalendarWidget Class
class Calendar(QCalendarWidget):
# constructor
def __init__(self, parent = None):
super(Calendar, self).__init__(parent)
# overriding the timer event
# this will show the next month
def timerEvent(self, event):
# show the next month
window.calendar.showNextMonth()
class Window(QMainWindow):
def __init__(self):
super().__init__()
# setting title
self.setWindowTitle("Python ")
# setting geometry
self.setGeometry(100, 100, 650, 400)
# calling method
self.UiComponents()
# showing all the widgets
self.show()
# method for components
def UiComponents(self):
# creating a QCalendarWidget object
# as Calendar class inherits QCalendarWidget
self.calendar = Calendar(self)
# setting geometry to the calendar
self.calendar.setGeometry(50, 10, 400, 250)
# setting cursor
self.calendar.setCursor(Qt.PointingHandCursor)
# starting the calendar timer
# passing 1000 milliseconds as parameter
timer_id = self.calendar.startTimer(1000)
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())