PyQt4 [PyQt4]마우스 클릭 이벤트 예제 코드

from PyQt4 import QtCore, QtGui

class CustomButton(QtGui.QPushButton):

    left_clicked= QtCore.pyqtSignal(int)
    right_clicked = QtCore.pyqtSignal(int)

    def __init__(self, *args, **kwargs):
        QtGui.QPushButton.__init__(self, *args, **kwargs)
        self.timer = QtCore.QTimer()
        self.timer.setInterval(250)
        self.timer.setSingleShot(True)
        self.timer.timeout.connect(self.timeout)
        self.left_click_count = self.right_click_count = 0

    def mousePressEvent(self, event):
        if event.button() == QtCore.Qt.LeftButton:
            self.left_click_count += 1
            if not self.timer.isActive():
                self.timer.start()
        if event.button() == QtCore.Qt.RightButton:
            self.right_click_count += 1
            if not self.timer.isActive():
                self.timer.start()

    def timeout(self):
        if self.left_click_count >= self.right_click_count:
            self.left_clicked.emit(self.left_click_count)
        else:
            self.right_clicked.emit(self.right_click_count)
        self.left_click_count = self.right_click_count = 0


class MyDialog(QtGui.QDialog):
    def __init__(self, parent=None):
        super(MyDialog, self).__init__(parent)
        self.button1 = CustomButton("Button 1")
        hbox = QtGui.QHBoxLayout()
        hbox.addWidget(self.button1)
        self.setLayout(hbox)
        self.button1.left_clicked[int].connect(self.left_click)
        self.button1.right_clicked[int].connect(self.right_click)

    def left_click(self, nb):
        if nb == 1: print('Single left click')
        else: print('Double left click')

    def right_click(self, nb):
        if nb == 1: print('Single right click')
        else: print('Double right click')


if __name__ == '__main__':
    import sys
    app = QtGui.QApplication(sys.argv)
    w = MyDialog()
    w.show()
    sys.exit(app.exec_())