Java:在不触发双击的情况下检测三次单击 [英] Java : detect triple-click without firing double-click

问题描述

我有一个JTable，我想在其中双击单元格时调用一个函数，并在三次单击单元格时调用另一个函数.

I have a JTable in which I want to call a function when a cell is double-clicked and call another function when the cell is triple-clicked.

双击单元格时，我不想调用双击功能.

When the cell is triple-clicked I do not want to call the double-click-function.

我现在拥有的是(mgrdAlarm是JTable):

What I have right now is (mgrdAlarm is the JTable) :

mgrdAlarm.addMouseListener(new MouseAdapter()
{
  public void mouseClicked(MouseEvent e)
  {
    System.out.println("getClickCount() = " + e.getClickCount());
    if (e.getClickCount()==2)
    {
      doubleClick();
      System.out.println("Completed : doubleClick()");
    }
    if (e.getClickCount()==3)
    {
      tripleClick();
      System.out.println("Completed : tripleClick()");
    }
  }
});

双击，控制台显示:

getClickCount() = 1
getClickCount() = 2
Completed : doubleClick()

三次单击后，控制台将显示:

When triple-clicked the console shows :

getClickCount() = 1
getClickCount() = 2
Completed : doubleClick()
getClickCount() = 3
Completed : tripleClick()

单击三次后，我希望控制台显示:

When triple-clicked I want the console to show :

getClickCount() = 1
getClickCount() = 2
getClickCount() = 3
Completed : tripleClick()

因此，我不想在单元格被三次单击时调用doubleClick()函数，但是我确实想在单元格被双击时调用doubleClick()函数.

So I do not want to call the function doubleClick() when the cell is triple-clicked, but I do want to call the function doubleClick() when the cell is double-clicked.

所有答复都表明，解决方案似乎是延迟双击动作，并等待一定时间才能进行三次单击.

As all replies suggest the solution seems to be to delay the double-click-action and wait a certain time for the triple-click.

但正如此处所讨论的那样，这可能会导致不同类型的问题: 用户可能将其双击时间设置得很长，这可能与我的三次单击超时重叠.

But as discussed here that might lead to a different type of problem : The user might have set his double-click-time quite long, which might overlap with the timeout of my triple-click.

如果在执行三次单击操作之前执行两次双击操作并没有真正的灾难，但是它确实会产生一些额外的开销，尤其是一些我想避免的额外数据流量.

It is no real disaster if my double-click-action is executed before my triple-click-action, but it does generate some extra overhead, and especially some extra data traffic which I would like to prevent.

由于到目前为止唯一的解决方案可能会导致其他问题，而实际上可能比原始问题更严重，所以我将其保留为当前状态.

As the only solution so far might lead to other problems, which might actually be worse than the original problem, I will leave it as it is right now.

推荐答案

先前的答案是正确的:您必须考虑时间并延迟将其识别为双击，直到经过一定时间为止.正如您所注意到的那样，挑战在于用户的双击阈值可能会很长或很短.因此，您需要知道用户的设置是什么.另一个堆栈溢出线程(在单个单击并在Java中双击)提到awt.multiClickInterval桌面属性.尝试使用该阈值.

The previous answers are correct: you have to account for the timing and delay recognizing it as a double click until a certain amount of time has passed. The challenge is that, as you have noticed, the user could have a very long or very short double click threshold. So you need to know what the user's setting is. This other Stack Overflow thread ( Distinguish between a single click and a double click in Java ) mentions the awt.multiClickInterval desktop property. Try using that for your threshold.

这篇关于Java:在不触发双击的情况下检测三次单击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！