swing: scale & translate mouse position

[Boris Hollas]

Hello,

I use graphics2d to draw graphics. These graphics are scaled and translated with g.scale and g.translate.
Also, I have a mouse click listener. I want to click at points in the graphics. To identify the correct position, I have to take into account the scaling and translating I've done to draw the graphics. How can this be done?

    listenTo(mouse.clicks)
    focusable = true
    reactions += {
        case event.MouseClicked(_, point, _, _, _) => {
            // need to scale & translate point.x, point.y to corresponding position
            ...
            repaint
        }
    }

[Naftoli Gugenheim]

Where do you have the graphics transform?

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[Boris Hollas]

On Monday, May 20, 2013 10:03:46 PM UTC+2, nafg wrote:

Where do you have the graphics transform?

in my paint-method:

    override def paintComponent(g: Graphics2D) {
        super.paintComponent(g)
        g.setColor(java.awt.Color.black)
        g.scale(s, s)
        g.translate(0.1, 0.1)
 

[Naftoli Gugenheim]

So just add and multiply the point by those numbers.

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[Boris Hollas]

This it what I have done as a work-around. But is there a scala-swing method to do so automatically?