PyQt5:QPushButton 双击? [英] PyQt5: QPushButton double click?

问题描述

我找不到一个好的答案:有没有办法双击执行某个功能，然后单击另一个功能??例如:

I can't find a good answer for this: is there a way for double click to execute a certain function, and single click one other function?? For example:

def func1(self):
    print('First function')
def func2(self):
    print('Second function')
self.ui.button.clicked.connect(self.func1)
self.ui.button.doubleClicked.connect(self.func2)

我看到 QTreeview 可以双击，但 QPushButton 不行.谢谢！

I've seen double clicking is possible for the QTreeview but not a QPushButton. Thanks!

推荐答案

您可以通过扩展 QPushButton 类轻松自己添加功能:

You can add the functionality easily yourself by extending QPushButton class:

import sys
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *

class QDoublePushButton(QPushButton):
    doubleClicked = pyqtSignal()
    clicked = pyqtSignal()

    def __init__(self, *args, **kwargs):
        QPushButton.__init__(self, *args, **kwargs)
        self.timer = QTimer()
        self.timer.setSingleShot(True)
        self.timer.timeout.connect(self.clicked.emit)
        super().clicked.connect(self.checkDoubleClick)

    @pyqtSlot()
    def checkDoubleClick(self):
        if self.timer.isActive():
            self.doubleClicked.emit()
            self.timer.stop()
        else:
            self.timer.start(250)

class Window(QWidget):
    def __init__(self, *args, **kwargs):
        QWidget.__init__(self, *args, **kwargs)

        self.button = QDoublePushButton("Test", self)
        self.button.clicked.connect(self.on_click)
        self.button.doubleClicked.connect(self.on_doubleclick)

        self.layout = QHBoxLayout()
        self.layout.addWidget(self.button)

        self.setLayout(self.layout)
        self.resize(120, 50)
        self.show()

    @pyqtSlot() 
    def on_click(self):
        print("Click")

    @pyqtSlot()
    def on_doubleclick(self):
        print("Doubleclick")

app = QApplication(sys.argv)
win = Window()
sys.exit(app.exec_())

但是，我不会推荐它.用户不希望双击按钮.您可以参考命令按钮 Microsoft 指南.

However, I would not recommend it. Users do not expect to double-click buttons. You can refer to Command Buttons Microsoft guidelines.

这篇关于PyQt5:QPushButton 双击?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！