PyQt4 初试牛刀二

一、最小话托盘后，调用showNormal()后窗口不刷新，解决办法如下：

    重写showNormal 方法，调用父类方法后，repaint窗体

def showNormal(self):     super(LcdTime, self).showNormal()     self.repaint()

二、透明显示窗口后无法拖动窗体：

    必须拖动非透明区域，比如数字，目前没有找到好的解决方案。

    

# -*- coding: utf-8 -*- import sys from PyQt4 import QtCore, QtGui class LcdTime(QtGui.QDialog):     def __init__(self, parent=None):         super(LcdTime, self).__init__(parent)         self.hour = QtGui.QLCDNumber(8, self)         self.hour.setGeometry(10, 10, 200, 80)         self.hour.setSegmentStyle(QtGui.QLCDNumber.Flat)         self.display()         self.timer = QtCore.QTimer()         self.connect(self.timer, QtCore.SIGNAL('timeout()'), self.display)         self.timer.start(1000)         self.build_tray()         self.resize(220, 100)         self.central()         self.setWindowFlags(QtCore.Qt.FramelessWindowHint)         # 透明处理，移动需要拖动数字         self.setAttribute(QtCore.Qt.WA_TranslucentBackground, True)         self.setMouseTracking(True)     def mousePressEvent(self, event):         if event.button() == QtCore.Qt.LeftButton:             self.dragPosition = event.globalPos() - self.frameGeometry().topLeft()             event.accept()     def mouseMoveEvent(self, event):         if event.buttons() == QtCore.Qt.LeftButton:             self.move(event.globalPos() - self.dragPosition)             event.accept()     def build_tray(self):         trayIcon = QtGui.QSystemTrayIcon(self)         trayIcon.setIcon(QtGui.QIcon('logo.png'))         trayIcon.show()         trayIcon.setToolTip('时钟')         trayIcon.activated.connect(self.trayClick)         menu = QtGui.QMenu()         normalAction = menu.addAction('正常显示')         miniAction = menu.addAction('最小化托盘')         exitAction = menu.addAction('退出')         normalAction.triggered.connect(self.showNormal)         exitAction.triggered.connect(self.exit)         miniAction.triggered.connect(self.showMinimized)         trayIcon.setContextMenu(menu)     def exit(self):         # 不设置Visible为False，退出后TrayIcon不会刷新         self.setVisible(False)         sys.exit(0)     def trayClick(self, reason):         if reason == QtGui.QSystemTrayIcon.DoubleClick:             self.showNormal()             self.repaint()     def display(self):         current = QtCore.QTime.currentTime()         self.hour.display(current.toString('HH:mm:ss'))     def showNormal(self):         super(LcdTime, self).showNormal()         self.repaint()     def central(self):         screen = QtGui.QDesktopWidget().screenGeometry()         size = self.geometry()         self.move(screen.width() - size.width(), 0) app = QtGui.QApplication(sys.argv) lcd = LcdTime() lcd.show() sys.exit(app.exec_())

 

 

转载于:https://www.cnblogs.com/lkpp/p/7400048.html

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