Qt双击检查鼠标左键 [英] Qt double click check left button mouse

问题描述

我需要运行slot只在doubleClick上用鼠标左键，而不是两者。

I need to run slot only on doubleClick with left button mouse, instead of both.

// this->myComponent is a QTableView
   connect(this -> myComponent, SIGNAL (doubleClicked (const QModelIndex & )), this,
  SLOT (performSomeAction(const QModelIndex & )));

在这种情况下，双击工作在这两种情况，但只需要左键点击。
我该怎么办？

With this event, double click works in both cases, but needed only with left button click. How I can do it?

this -> myComponent => QTableView

推荐答案

我找到了以下解决方案：

I found the following solution:

this -> myComponent -> viewport() -> installEventFilter(this);

bool MyClass::eventFilter(QObject *obj, QEvent *event) {
  this -> event = event;
  return QWidget::eventFilter(obj, event);
}

...

if (this -> event -> type() == QEvent::MouseButtonDblClick) {
  QMouseEvent * mouseEvent = static_cast <QMouseEvent *> (event);

  if (mouseEvent -> button() == Qt::LeftButton) {
    // do something....
  }
}

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