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package bezier;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.DefaultListModel;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JOptionPane;
import bezier.geom.Bezier;
import bezier.geom.TDPoint;
/**
* Listener to remove points from a bezier curve.
*
* @author bjculkin
*
*/
public class PointRemover implements ActionListener {
private final JFrame fram;
private final JList<TDPoint> pointList;
private final DefaultListModel<TDPoint> pointModel;
private Bezier curve;
/**
* Create a new listener to remove points from a bezier curve.
*
* @param fram
* The frame to use.
* @param pointList
* The list the points are stored in.
* @param pointModel
* The data backing the list.
* @param curveHolder
* The current curve.
*/
public PointRemover(JFrame fram, JList<TDPoint> pointList, DefaultListModel<TDPoint> pointModel,
Holder<Bezier> curveHolder) {
this.fram = fram;
this.pointList = pointList;
this.pointModel = pointModel;
/*
* Change our curve if the current one changes.
*/
curve = curveHolder.getVal();
curveHolder.addHolderListener((val) -> {
curve = val;
});
}
@Override
public void actionPerformed(ActionEvent ev) {
int selectedIndex = pointList.getSelectedIndex();
/*
* Nothing selected.
*/
if (selectedIndex == -1)
return;
TDPoint punkt = pointModel.get(selectedIndex);
String msg = String.format("Do you want to remove the control point (%.2f, %.2f)?", punkt.x, punkt.y);
int confirmed = JOptionPane.showConfirmDialog(fram, msg, "Remove Control Point?", JOptionPane.YES_NO_OPTION);
if (confirmed == JOptionPane.YES_OPTION) {
pointModel.remove(selectedIndex);
curve.controls.remove(punkt);
}
}
}
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