如何在QT中使QMenu项目可检查 [英] How to make QMenu Item checkable in QT
本文介绍了如何在QT中使QMenu项目可检查的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如何使用QT检查Qmenu项目
How to give Qmenu item checkable using QT
QMenu *preferenceMenu = new QMenu();
preferenceMenu = editMenu->addMenu(tr("&Preferences"));
QMenu *Mode1 = new QMenu();
Mode1 = preferenceMenu->addMenu(tr("&Mode 1"));
Mode1->addAction(new QAction(tr("&Menu1"), this));
QMenu *Mode2 = new QMenu();
Mode2 = preferenceMenu->addMenu(tr("&Mode 2"));
Mode2->addAction(new QAction(tr("&Menu2"), this));
Mode2->addAction(new QAction(tr("&Menu3"), this));
在QAction上,我将广告位称为"slotActionTriggered(QAction * actionSelected)"
On QAction I called slot "slotActionTriggered(QAction* actionSelected)"
void csTitleBar::slotActionTriggered(QAction* actionSelected)
{
actionSelected->setChecked(true);
}
如何在选定的菜单号中显示小刻度,以便用户知道选择了哪个目前,我可以更改为所有菜单号,但是我需要在菜单上显示一个小勾,以便可以轻松识别所选的菜单.
How to show small TICK in the selected Menu# so that user can know which is selected Currently I am able to change to all Menu#, but I need to show a small tick on menu so that the selected one can be easly Identified
推荐答案
小示例:
cmainwindow.h
#ifndef CMAINWINDOW_H
#define CMAINWINDOW_H
#include <QMainWindow>
#include <QPointer>
class CMainWindow : public QMainWindow
{
Q_OBJECT
public:
CMainWindow(QWidget *parent = 0);
~CMainWindow();
private slots:
void slot_SomethingChecked();
private:
QPointer<QAction> m_p_Act_Button1 = nullptr;
QPointer<QAction> m_p_Act_Button2 = nullptr;
};
#endif // CMAINWINDOW_H
cmainwindow.cpp
#include "cmainwindow.h"
#include <QtWidgets>
#include <QDebug>
CMainWindow::CMainWindow(QWidget *parent)
: QMainWindow(parent)
{
m_p_Act_Button1 = new QAction("Super Button 1", this);
m_p_Act_Button1->setCheckable(true);
m_p_Act_Button1->setChecked(true);
connect(m_p_Act_Button1, SIGNAL(triggered()), this, SLOT(slot_SomethingChecked()));
m_p_Act_Button2 = new QAction("Super Button 2", this);
m_p_Act_Button2->setCheckable(true);
m_p_Act_Button2->setChecked(true);
connect(m_p_Act_Button2, SIGNAL(triggered()), this, SLOT(slot_SomethingChecked()));
QMenu *p_menu = menuBar()->addMenu("My Menu");
p_menu->addAction(m_p_Act_Button1);
p_menu->addAction(m_p_Act_Button2);
}
CMainWindow::~CMainWindow() { }
void CMainWindow::slot_SomethingChecked()
{
if(!m_p_Act_Button1 || !m_p_Act_Button2) {return;}
qDebug() << "Hi";
if(m_p_Act_Button1->isChecked())
{
qDebug() << "The action 1 is now checked";
}
else
{
qDebug() << "The action 1 is now unchecked";
}
if(m_p_Act_Button2->isChecked())
{
qDebug() << "The action 2 is now checked";
}
else
{
qDebug() << "The action 2 is now unchecked";
}
}
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