python+PyQT实现系统桌面时钟

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.

__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_( )) 

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。