過濾mousePressEvent與installEventFilter

Question

我有問題過濾"mousePressEvent"與installEventFilter

MyTestxEdit是持有QTextEdit 我想要的QTextEdit所有事件將被MyTestxEdit 來處理我已經使用了installEventFilter 這一招一個widget適用於keyPressEvent等事件，但不處理mousePressEvent 我做錯了什麼？

import sys 
from PyQt4.QtGui import QApplication, QErrorMessage 
from KdeQt.KQApplication import KQApplication 
from KdeQt.KQMainWindow import KQMainWindow 
from PyQt4.QtCore import * 
from PyQt4.QtGui import * 
import thread 

class MyTestxEdit1(QTextEdit): 
    def __init__(self,parent): 
     QTextEdit.__init__(self) 
     self.setMouseTracking(True) 

class MyTestxEdit(QWidget): 
    def __init__(self): 
     QWidget.__init__(self) 
     self.__qTextEdit=MyTestxEdit1(self) 
     self.__qHBoxLayout=QHBoxLayout() 
     self.setLayout(self.__qHBoxLayout) 
     self.__qHBoxLayout.addWidget(self.__qTextEdit)   
     self.__qTextEdit.installEventFilter(self) 


    def eventFilter(self,target,event): 
     print "eventFilter "+str(event.type()) 
     if(event.type()==QEvent.MouseButtonPress): 
      print "Mouse was presssed "+str(event.type()) 
      self.mousePressEvent(event) 
      return True 
     return False     


if __name__ == '__main__': 
    app = KQApplication(sys.argv,[]) 
    mainWindow = KQMainWindow()#loc, splash, pluginFile, noopen, restartArgs) 
    s = QSize(800, 600) 
    mainWindow.resize(s)  
    testxEdit=MyTestxEdit() 
    mainWindow.setCentralWidget(testxEdit) 

    mainWindow.show() 
    res = app.exec_() 
    sys.exit(res)  

Answer 1

嘗試在QTextEdit's視代替QTextEdit本身安裝過濾器...

我不知道蟒蛇，但喜歡的事：

self.__qTextEdit.viewport().installEventFilter(self) 

我希望它能幫助！

你應該這樣做：

MyClassFrm::MyClassFrm() 
{ 
    ... 
    // Get your TextEdit from the UI here , or create your TextEdit here.... 
    // Install the filter 
    pMyTextEdit->viewport()->installEventFilter(this); 
    ... 
} 

... 

bool MyClassFrm::eventFilter(QObject* pObject, QEvent* pEvent) 
{ 
    if (pEvent->type() == QEvent::MousePressEvent) 
    { 
     qDebug() << "Mouse pressed !!"; 
     // standard event processing 
     return QObject::eventFilter(pObject, pEvent); 
    } 
} 

你應該能夠使它工作，我只是在我的應用程序進行測試，它的工作原理...我敢肯定，你靠近！