使用 QTabWidget 默认使用 Ctrl+Tab 防止选项卡循环 [英] Prevent tab cycling with Ctrl+Tab by default with QTabWidget

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问题描述

我有以下示例代码,可制作三选项卡布局(第三个选项卡上有按钮).默认情况下,我可以 Ctrl+Tab/Ctrl+Shift+Tab在选项卡之间循环.如何禁用此功能?在我的非示例代码中,这不是我们想要的行为.

I have the following example code that makes a three tab layout (with buttons on the third tab). By default, I can Ctrl+Tab/Ctrl+Shift+Tab to cycle between the tabs. How do I disable this functionality? In my non-example code, this is not desired behaviour.

from PyQt4 import QtGui
import sys


def main():
    app = QtGui.QApplication(sys.argv)
    tabs = QtGui.QTabWidget()
    push_button1 = QtGui.QPushButton("QPushButton 1")
    push_button2 = QtGui.QPushButton("QPushButton 2")

    tab1 = QtGui.QWidget()
    tab2 = QtGui.QWidget()
    tab3 = QtGui.QWidget()

    vBoxlayout = QtGui.QVBoxLayout()
    vBoxlayout.addWidget(push_button1)
    vBoxlayout.addWidget(push_button2)
    tabs.resize(250, 150)
    tabs.move(300, 300)
    tab3.setLayout(vBoxlayout)

    tabs.addTab(tab1, "Tab 1")
    tabs.addTab(tab2, "Tab 2")
    tabs.addTab(tab3, "Tab 3")

    tabs.setWindowTitle('PyQt QTabWidget Add Tabs and Widgets Inside Tab')
    tabs.show()

    sys.exit(app.exec_())


if __name__ == '__main__':
    main()

推荐答案

您始终可以安装 eventFilter(类似于 KeyPressEater 在这里)

You can always install an eventFilter (similar to KeyPressEater here)

我做到了:

from PySide import QtGui, QtCore

class AltTabPressEater(QtCore.QObject):
    def eventFilter(self, obj, event):
        if event.type() == QtCore.QEvent.KeyPress and (event.key() == 16777217 or event.key() == 16777218):
            return True # eat alt+tab or alt+shift+tab key
        else:
            # standard event processing
            return QtCore.QObject.eventFilter(self, obj, event)

app = QtGui.QApplication([])

tabs = QtGui.QTabWidget()
filter = AltTabPressEater()
tabs.installEventFilter(filter)
push_button1 = QtGui.QPushButton("QPushButton 1")
push_button2 = QtGui.QPushButton("QPushButton 2")

tab1 = QtGui.QWidget()
tab2 = QtGui.QWidget()
tab3 = QtGui.QWidget()

vBoxlayout = QtGui.QVBoxLayout()
vBoxlayout.addWidget(push_button1)
vBoxlayout.addWidget(push_button2)
tabs.resize(250, 150)
tabs.move(300, 300)
tab3.setLayout(vBoxlayout)

tabs.addTab(tab1, "Tab 1")
tabs.addTab(tab2, "Tab 2")
tabs.addTab(tab3, "Tab 3")

tabs.show()

app.exec_()

我懒得为 alt+tab 或 alt+shift+tab 键找到正确的 QtCore.Qt 常量,所以我只是先听听,然后用 python 告诉我的内容替换.

I was too lazy to find the right QtCore.Qt constants for the alt+tab or alt+shift+tab keys, so I just listened first and then replaced by what python told me.

这篇关于使用 QTabWidget 默认使用 Ctrl+Tab 防止选项卡循环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!

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