qt 只实现了鼠标左键的双击事件，同时会触发mousePressEvent事件，那么怎么区分鼠标的单击，双击呢？？进入正题，请见以下源码，或者下载资源：/detail/shaosheng/9823796
/**************************************/
//头文件： double_single_clicked.h
/*************************************/
#ifndef DOUBLE_SINGLE_CLICKED_H
#define DOUBLE_SINGLE_CLICKED_H
#include <QtWidgets/QWidget>
class QTimer;
class QLabel;
class DoubleSingleClicked : public QWidget
{
Q_OBJECT
public:
DoubleSingleClicked(QWidget *parent = 0);
~DoubleSingleClicked();
protected:
void mouseDoubleClickEvent(QMouseEvent *e);
void mousePressEvent(QMouseEvent *);
private slots:
void slotSingleClicked();
private:
QTimer *m_clickedTimer = nullptr;
QLabel *m_label = nullptr;
};
#endif // DOUBLE_SINGLE_CLICKED_H
/***********************************************************************************************************/
//.cpp文件:double_single_clicked.cpp
/**********************************************************************************************************/
#include "double_single_clicked.h"
#include <QTimer>
#include <QLabel>
#include <QMouseEvent>
DoubleSingleClicked::DoubleSingleClicked(QWidget *parent)
: QWidget(parent)
{
setFixedSize(600, 400);
m_label = new QLabel(this);
m_label->move(15, 50);
m_label->setText(QStringLiteral("区分鼠标单击，双击事件!"));
m_clickedTimer = new QTimer(this);
connect(m_clickedTimer, SIGNAL(timeout()), this, SLOT(slotSingleClicked()));
}
DoubleSingleClicked::~DoubleSingleClicked()
{
}
void DoubleSingleClicked::mouseDoubleClickEvent(QMouseEvent *e)
{
if (m_clickedTimer->isActive())
m_clickedTimer->stop();
m_label->setText(QStringLiteral("鼠标双击！！"));
}
void DoubleSingleClicked::mousePressEvent(QMouseEvent *e)
{
if (Qt::LeftButton == e->button())
{
m_clickedTimer->start(300);
}
}
void DoubleSingleClicked::slotSingleClicked()
{
m_label->setText(QStringLiteral("鼠标单击!!"));
if (m_clickedTimer->isActive())
m_clickedTimer->stop();
}
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