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  Change Mouse Cursor linux problem.  (Read 1220 times)
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Offline patton73

Junior Newbie





« Posted 2012-05-11 12:08:18 »

Hi all,

Changing the mouse cursor using Java Toolkit does not work because it seems that only a 2-colored image is supported.
I have tested this in many linux installations (with gnome, kde and so on).

I would like to know if some of you can paste the code to render the cursor via software drawing it over the hardware cursor.

Hiding the cursor using a null image works also under linux. But how i can craw the image over the mouse position?

Can you please past some relevant code.

Thanks in advance.
Andrea.
Offline ra4king

JGO Kernel


Medals: 336
Projects: 2
Exp: 5 years


I'm the King!


« Reply #1 - Posted 2012-05-12 00:37:35 »

Do you know how to use a MouseListener? Use a MouseListener to get the X and Y location of the mouse cursor, where you can then draw an image at that location.

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public class MouseTracker implements MouseListener {
    private int mouseX, mouseY;
   
    public int getMouseX() {
        return mouseX;
    }
   
    public int getMouseY() {
        return mouseY;
    }
   
    public void mouseMoved(MouseEvent me) {
        mouseX = me.getX();
        mouseY = me.getY();
    }
   
    public void mousePressed(MouseEvent me) {}
    public void mouseReleased(MouseEvent me) {}
}

// to add a listener

MouseTracker mt = new MouseTracker();

myComponent.addMouseListener(mt);

Offline patton73

Junior Newbie





« Reply #2 - Posted 2012-05-13 10:02:05 »

Well usage of listener is clear. What is not clear to me is where to put the drawing code.
Can you add some code that explain the thing?
Thank you for your time.

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Offline matheus23

JGO Kernel


Medals: 106
Projects: 3


You think about my Avatar right now!


« Reply #3 - Posted 2012-05-13 10:09:36 »

Well usage of listener is clear. What is not clear to me is where to put the drawing code.
Can you add some code that explain the thing?
Thank you for your time.



I think, you could go with hiding the cursor, if inside your window, and drawing your own, at the position of the cursor Smiley
You would have total freedom then.

See my:
    My development Blog:     | Or look at my RPG | Or simply my coding
http://matheusdev.tumblr.comRuins of Revenge  |      On Github
Offline ra4king

JGO Kernel


Medals: 336
Projects: 2
Exp: 5 years


I'm the King!


« Reply #4 - Posted 2012-05-13 11:36:53 »

Well usage of listener is clear. What is not clear to me is where to put the drawing code.
Can you add some code that explain the thing?
Thank you for your time.
You would simply draw an image at the mouse location:

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g.drawImage(myCursorImage,mt.getMouseX(),me.getMouseY(),null);


If you don't know how to draw things in Java2D, I suggest you read the official Oracle Tutorials.

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