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python+PyQT实现系统桌面时钟

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用Python + PyQT写的一个系统桌面时钟,刚学习Python,写的比较简陋,但是基本的功能还可以.

功能:

①窗体在应用程序最上层,不用但是打开其他应用后看不到时间 。

②左键双击全屏,可以做小屏保使用,再次双击退出全屏.

③系统托盘图标,主要参考PyQt4源码目录中的PyQt4\examples\desktop\systray下的程序 。

④鼠标右键,将程序最小化 。

使用时需要heart.svg放在源代码同级目录下,[文件可在PyQt4示例代码目录下PyQt4\examples\desktop\systray\images找到 。

运行需要Python2.7 + PyQt4. 。

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__metaclass__ = type
#!coding= utf-8
#http://blog.csdn.net/gatieme/article/details/17659259
#gatieme
 
 
import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *
 
 
#--------------------------------------------------------------------------------
class SystemTrayIcon(QSystemTrayIcon):
  """
  The systemTrayIcon which uesd to connect the clock
  """
  #----------------------------------------------------------------------------
  def __init__( self , mainWindow, parent = None ):
   """
   mainWindow : the main window that the system tray icon serves to
   """
   super (SystemTrayIcon, self ).__init__(parent)
   self .window = mainWindow
   self .setIcon(QIcon( "heart.svg" )) # set the icon of the systemTrayIcon
   
   self .createActions( )
   self .createTrayMenu( )
   
   self .connect( self , SIGNAL( "doubleClicked" ), self .window, SLOT( "showNormal" ))
   #self.connect(self, SIGNAL("activated( )"), self, SLOT("slot_iconActivated"))
   
 
  def createActions( self ):
   """
   create some action to Max Min Normal show the window
   """
   self .minimizeAction = QAction( "Mi&nimize" , self .window, triggered = self .window.hide)
   self .maximizeAction = QAction( "Ma&ximize" , self .window, triggered = self .window.showMaximized)
   self .restoreAction = QAction( "&Restore" , self .window, triggered = self .window.showNormal)
   self .quitAction = QAction( "&Quit" , self .window, triggered = qApp.quit)
     
 
  def createTrayMenu( self ):
    self .trayIconMenu = QMenu( self .window)
    self .trayIconMenu.addAction( self .minimizeAction)
    self .trayIconMenu.addAction( self .maximizeAction)
    self .trayIconMenu.addAction( self .restoreAction)
    self .trayIconMenu.addSeparator( )
    self .trayIconMenu.addAction( self .quitAction)
 
    self .setContextMenu( self .trayIconMenu)
  
  def setVisible( self , visible):
   self .minimizeAction.setEnabled( not visible)
   self .maximizeAction.setEnabled( not self .window.isMaximized())
   self .restoreAction.setEnabled( self .window.isMaximized() or not visible)
   super (Window, self ).setVisible(visible)
 
 
 
  def closeEvent( self , event):
   #if event.button( ) == Qt.RightButton:
   self .showMessage( "Message" ,
     "The program will keep running in the system tray. To "
     "terminate the program, choose <b>Quit</b> in the "
     "context menu of the system tray entry." ,
     QSystemTrayIcon.Information, 5000 )
   self .window.hide( )
   event.ignore( )
 
  def slot_iconActivated( self , reason):
   if reason = = QSystemTrayIcon.DoubleClick:
    self .wiondow.showNormal( )
 
 
 
#--------------------------------------------------------------------------------
class DigitClock(QLCDNumber):
  """
  the DigitClock show a digit clock int the printer
  """
  
  #----------------------------------------------------------------------------
  def __init__( self , parent = None ):
   """
   the constructor function of the DigitClock
   """
   super (DigitClock, self ).__init__(parent)
   pale = self .palette( )
 
   pale.setColor(QPalette.Window, QColor( 100 , 180 , 100 ))
   self .setPalette(pale)
   
   self .setNumDigits( 19 )
   self .systemTrayIcon = SystemTrayIcon(mainWindow = self )
 
   
   self .dragPosition = None ;
   self .setWindowFlags(Qt.FramelessWindowHint | Qt.WindowStaysOnTopHint | Qt.Popup | Qt.Tool)
   self .setWindowOpacity( 1 )
   
   self .showTime( )   # print the time when the clock show
   self .systemTrayIcon.show( ) # show the SystemTaryIcon when the clock show
 
   self .timer = QTimer( )
   self .connect( self .timer, SIGNAL( "timeout( )" ), self .showTime)
   self .timer.start( 1000 )
   
   self .resize( 500 , 60 )
   
  
  #----------------------------------------------------------------------------
  def showTime( self ):
   """
   show the current time
   """
   self .date = QDate.currentDate( )
   self .time = QTime.currentTime( )
   text = self .date.toString( "yyyy-MM-dd" ) + " " + self .time.toString( "hh:mm:ss" )
   self .display(text)
 
   
 
  #----------------------------------------------------------------------------
  def mousePressEvent( self , event):
   """
   clicked the left mouse to move the clock
   clicked the right mouse to hide the clock
   """
   if event.button( ) = = Qt.LeftButton:
    self .dragPosition = event.globalPos( ) - self .frameGeometry( ).topLeft( )
    event.accept( )
   elif event.button( ) = = Qt.RightButton:
    self .systemTrayIcon.closeEvent(event)
 
    #self.systemTrayIcon.hide( )
    #self.close( )
 
  def mouseMoveEvent( self , event):
   """
   """
   if event.buttons( ) & Qt.LeftButton:
    self .move(event.globalPos( ) - self .dragPosition)
    event.accept( )
  
  def keyPressEvent( self , event):
   """
   you can enter "ESC" to normal show the window, when the clock is Maxmize
   """
   if event.key() = = Qt.Key_Escape and self .isMaximized( ):
    self .showNormal( )
 
  def mouseDoubleClickEvent( self , event):
   """
   """
   if event.buttons() = = Qt.LeftButton:
    if self .isMaximized( ):
     self .showNormal( )
    else :
     self .showMaximized( )
  
if __name__ = = "__main__" :
  app = QApplication(sys.argv)
  
  digitClock = DigitClock( )
  digitClock.show( ) 
  
  sys.exit(app.exec_( ))

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原文链接:https://blog.csdn.net/qq_41352018/article/details/80102659 。

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