CODEWITHSUNDEEP
javamouseevent
Tamoor Rahil
Tamoor Rahil

Reputation: 69

How to differentiate between touchpad clicks

I am creating a click test for mousepad in Java. I can differentiate between left, right and middle click through:

if(evt.getButton()==3) // or 1 or 2

What I can't seem to do is to differentiate between 2 lefts.

2 lefts

The 2 lefts being click on 1 and click on 2 in the image above. I have tried to see if I get different values from them when I click by debugging and checking the event object but its the same. For keyboard one can differentiate between two Ctrl or 2 shifts by getting keyLocation, can one do something similar with click? Like not get where on the screen is clicked but which button was pressed.

private void formMouseClicked(java.awt.event.MouseEvent evt) {
    System.out.println(evt.getButton());
    if (evt.getButton() == 3) {
        //3=right
        button1.setBackground(Color.GREEN);
        textField1.setText("Code : Right");
    } else if (evt.getButton() == 2) {
        //middle
        button6.setBackground(Color.GREEN);
        textField1.setText("Code : Middle");
    } else if (evt.getButton() == 1) {
        //1=left
        button5.setBackground(Color.GREEN);
        textField1.setText("Code : Left");
    } else {
        textField1.setText("Code : " + evt.getButton());
    }
}

This above is my code so far in regards with click.

I have searched a lot but couldn't find information that could help yet.

Upvotes: 1

Views: 754

Answers (2)

Sumit Singh
Sumit Singh

Reputation: 15896

You can you below code SwingUtilities methods

SwingUtilities.isLeftMouseButton(MouseEvent anEvent) 
SwingUtilities.isRightMouseButton(MouseEvent anEvent) 
SwingUtilities.isMiddleMouseButton(MouseEvent anEvent)

Like:

if(SwingUtilities.isLeftMouseButton(evt)){
// do your work
}
// same for right and middle mouse key

But if you want to check where click happed on the mouse from enter link description here

Java Swing is an old technology, it supports the traditional mouse wheel rotation events.

So i don't think its possible to get difference b/w click happening on diff location of touchpad.

From MouseEvent
There is no way to get the location of mouse click.

Upvotes: 0

cameron1024
cameron1024

Reputation: 10156

As far as I know, there is no way to do this. The trackpad will simply present itself as if mouse1 has been pressed when you click the trackpad. Keyboards have different keycodes for left/right shift, etc... I don't believe there are different keycodes for "trackpad click" and "mouse 1".

Anyway, why would you want to add functionality that only laptop users (and only certain laptop users) would be able to use. What about desktops? What about mobile?

Upvotes: 2

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