Qt 获取组合键 键盘按住某键 鼠标组合实现

#include "mainwindow.h"

#include <QDebug>

#include <QKeyEvent>

#include <QMouseEvent>

MainWindow::MainWindow(QWidget *parent) :

    QMainWindow(parent)

{

    this->setupUi(this);

    QWidget::installEventFilter(this);

}

MainWindow::~MainWindow()

{

}

//通过过滤器组合Control + Enter 按键

bool MainWindow::eventFilter(QObject *watched, QEvent *event)

{

    if(event->type()==event->KeyPress)

    {

        QKeyEvent *keyEvent = (QKeyEvent *)event;

        if(keyEvent->key() == Qt::Key_Return && (keyEvent->modifiers() & Qt::ControlModifier))

        {

            qDebug()<<"EnterKey + ControlKey";

            return true;

        }

    }

    return false;

}

//按键与鼠标的结合 键盘按住Ctrl键 + 鼠标左键的实现

void MainWindow::mousePressEvent(QMouseEvent *event)

{

    // 获取鼠标在点击窗体上的坐标

    QPoint pos = event->pos();

    qDebug()<<pos;

    if(QApplication::keyboardModifiers() == Qt::ShiftModifier)

    {

        if(event->button() == Qt::LeftButton)

        {

            qDebug()<<"ShiftKey + MOuseLeftButton";

            return;

        }

    }

    if(QApplication::keyboardModifiers() == Qt::ControlModifier)

    {

        if(event->button() == Qt::RightButton)

        {

            qDebug()<<"ShiftKey + MOuseRightButton";

            return;

        }

    }

}

//三键组合Shift + Ctrl + A的实现

void MainWindow::keyPressEvent(QKeyEvent *event)

{

    if (event->modifiers() == (Qt::ShiftModifier | Qt::ControlModifier) && event->key() == Qt::Key_A)

    {

        qDebug()<<"ShiftKey + controlKey + A";

        return;

    }

//    if (event->modifiers() == (Qt::ShiftModifier | Qt::ControlModifier))

//    {

//        qDebug()<<"ShiftKey + controlKey";

//        return;

//    }

}