PyQt5 QCalendarWidget – 下个月按钮的背景颜色
在这篇文章中,我们将看到如何为QCalendarWidget的下个月按钮设置背景颜色。下个月的按钮是在工具按钮的右边,工具按钮是在顶部的按钮,也就是进入左页和右页的按钮,给QCalendarWidget设置背景色与给其他小部件设置背景色不同,日历是小部件,它有许多子部件,也就是组件,我们也可以给独立组件设置边框。
我们可以用QCalendarWidget的QToolButton作为样式表中的类名来设置工具按钮的背景色,但这将为工具按钮的所有元素设置背景色。
为了做到这一点,我们将使用QCalendarWidget对象的setStyleSheet方法,下面是样式表的代码
QCalendarWidget QToolButton#qt_calendar_nextmonth
{
background-color : lightgreen;
}
QCalendarWidget QToolButton#qt_calendar_nextmonth::hover
{
background-color : cyan;
}
QCalendarWidget QToolButton#qt_calendar_nextmonth::pressed
{
background-color : red;
}
注意: 我们使用QToolButton#qt_calendar_nextmonth::hover和QToolButton#qt_calendar_nextmonth::pressed来添加背景色,只有当鼠标悬停在它们上面或者当它们被按下时。还有 !hover 和 !pressed,它们是悬停和按压的相反状态。
下面是实现方法
# 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)
class Window(QMainWindow):
def __init__(self):
super().__init__()
# setting title
self.setWindowTitle("Python ")
# setting geometry
self.setGeometry(100, 100, 500, 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 cursor
self.calendar.setCursor(Qt.PointingHandCursor)
# setting size of the calendar
self.calendar.resize(350, 240)
# move the calendar
self.calendar.move(10, 10)
# setting stylesheet
# adding background to the navigation bar next month button
# adding background color when mouse hover over it and when it get pressed
self.calendar.setStyleSheet("QCalendarWidget QToolButton# qt_calendar_nextmonth"
"{"
"background-color : lightgreen;"
"}"
"QCalendarWidget QToolButton# qt_calendar_nextmonth::hover"
"{"
"background-color : cyan;"
"}"
"QCalendarWidget QToolButton# qt_calendar_nextmonth::pressed"
"{"
"background-color : red;"
"}"
)
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())