TransformPointAction.java

package org.openstreetmap.josm.plugins.piclayer.actions.transform.affine;

import static org.openstreetmap.josm.tools.I18n.tr;

import java.awt.event.MouseEvent;
import java.awt.geom.NoninvertibleTransformException;
import java.awt.geom.Point2D;

import org.openstreetmap.josm.gui.MapFrame;
import org.openstreetmap.josm.plugins.piclayer.actions.GenericPicTransformAction;
import org.openstreetmap.josm.tools.ImageProvider;

@SuppressWarnings("serial")
public class TransformPointAction extends GenericPicTransformAction {

    public TransformPointAction(MapFrame frame) {
        super(tr("PicLayer Transform point"), tr("Point transformed"), "transformpoint", tr("Transform point on the picture"), frame, ImageProvider.getCursor("crosshair", null));
    }

    @Override
    protected void doAction(MouseEvent e) {
        try {
            Point2D pressed = currentLayer.transformPoint(e.getPoint());
            if (selectedPoint != null) {
                /*if (currentLayer.getTransformer().getOriginPoints().size() < 3)
                    JOptionPane.showMessageDialog(null, tr("You should have 3 checkpoints to transform the image!"), tr("PicLayer"), JOptionPane.ERROR_MESSAGE, null);
                else*/
                //{
                    currentLayer.getTransformer().updatePair(selectedPoint, pressed);
                //}
            }

            currentCommand.addIfChanged();
        } catch (NoninvertibleTransformException e1) {
            e1.printStackTrace();
        }
    }

    @Override
    public void enterMode() {
        super.enterMode();
        updateDrawPoints(true);
    }

    @Override
    public void exitMode() {
        super.exitMode();
        updateDrawPoints(false);
    }
}