Given: org.gephi.preview.spi.PreviewMouseListener is implemented and added to the corresponding Renderer in a module.

Expected Behaviour

When clicking on a node of a graph in the Preview Mode, PreviewMouseEvent coordinates received in PreviewMouseListener::mouseClicked(PreviewMouseEvent pme, ...) method correspond to PreviewModel's actual coordinates.

Current Behavior

PreviewMouseEvent coordinates received in PreviewMouseListener::mouseClicked(PreviewMouseEvent pme, ...) method is wrong.
When clicking on a node in the Preview Mode, the coordinates from the mentioned method do not correspond to the coordinates of the corresponding node in the PreviewModel.

Possible Solution

org.gephi.desktop.preview.PreviewSketch.java:

...
private Vector screenPositionToModelPosition(Vector screenPos) {
        Vector center = new Vector(getWidth() / 2f, getHeight() / 2f);
        Vector scaledCenter = Vector.mult(center, target.getScaling());
        Vector scaledTrans = Vector.sub(center, scaledCenter);

        Vector modelPos = new Vector(screenPos.x, screenPos.y);
        modelPos.sub(scaledTrans);
        modelPos.mult(scaleFactor); // <---- This line is missing
        modelPos.div(target.getScaling());
        modelPos.sub(target.getTranslate());
        return modelPos;
}
...

Steps to Reproduce

1. Implement org.gephi.preview.spi.PreviewMouseListener according to the documentation and add it to some module.
2. Install the module.
3. Build/load some graph.
4. Go to the Preview Mode and click on some node of the graph.
5. Check if coordinates received in PreviewMouseListener::mouseClicked method correspond to the actual box of the node being clicked.

Context

It doesn't affect me directly because I fixed it for my own purpose.
However it's a bug for further development of Gephi Platform.

Your Environment

• Version used: Gephi 0.9.6
• Operating System: MacOS, M1.