右键单击QPushButton上的contextMenu [英] Right click contextMenu on QPushButton

问题描述

对于我的应用程序，我已经在Qt Designer中创建了一个GUI，并将其转换为python（2.6）代码。

For my app I have created a GUI in Qt Designer and converted it into python(2.6) code.

在某些 QPushButton上（由设计者创建）我想添加一个右键单击上下文菜单。菜单选项取决于应用程序的状态。

On some of the QPushButton (created with the designer) I want to add a right click context menu. The menu options depend on the application status.

如何实现此类上下文菜单？

How to implement such a context menu ?

推荐答案

检查以下示例是否适合您。关键是要设置上下文菜单策略，以便小部件能够CustomContextMenu并连接到小部件的 customContextMenuRequested 信号：

Check if an example below would work for you. The key thing is to set context menu policy for your widget to CustomContextMenu and connect to the widget's customContextMenuRequested signal:

import sys
from PyQt4 import QtGui, QtCore

class MainForm(QtGui.QMainWindow):
    def __init__(self, parent=None):
        super(MainForm, self).__init__(parent)

        # create button
        self.button = QtGui.QPushButton("test button", self)       
        self.button.resize(100, 30)

        # set button context menu policy
        self.button.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
        self.button.customContextMenuRequested.connect(self.on_context_menu)

        # create context menu
        self.popMenu = QtGui.QMenu(self)
        self.popMenu.addAction(QtGui.QAction('test0', self))
        self.popMenu.addAction(QtGui.QAction('test1', self))
        self.popMenu.addSeparator()
        self.popMenu.addAction(QtGui.QAction('test2', self))        

    def on_context_menu(self, point):
        # show context menu
        self.popMenu.exec_(self.button.mapToGlobal(point))        

def main():
    app = QtGui.QApplication(sys.argv)
    form = MainForm()
    form.show()
    app.exec_()

if __name__ == '__main__':
    main()

这篇关于右键单击QPushButton上的contextMenu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！