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package bezier;
import java.awt.BorderLayout;
import java.awt.Dialog.ModalityType;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JPanel;
import bezier.geom.Bezier;
import bezier.geom.TDPoint;
/**
* Listener for adding points to a bezier curve.
*
* @author bjculkin
*
*/
public class PointAdder implements ActionListener {
final DefaultListModel<TDPoint> pointModel;
private final JFrame fram;
Bezier curve;
/**
* Create a listener that adds points to a bezier curve.
*
* @param pointModel
* The place to store points.
* @param curveHolder
* The curve to add to.
* @param fram
* The frame to use.
*/
public PointAdder(DefaultListModel<TDPoint> pointModel, Holder<Bezier> curveHolder, JFrame fram) {
this.pointModel = pointModel;
this.curve = curveHolder.getVal();
this.fram = fram;
/*
* Change our curve if the current one changes.
*/
curveHolder.addHolderListener((curv) -> {
curve = curv;
});
}
@Override
public void actionPerformed(ActionEvent ev) {
JDialog dia = new JDialog(fram);
dia.setTitle("Add Control Point");
dia.setModalityType(ModalityType.MODELESS);
dia.setLayout(new BorderLayout());
JPanel fields = new JPanel();
fields.setLayout(new GridLayout(2, 1));
LabeledInputPanel xPanel = new LabeledInputPanel("X Coordinate: ", 0.0);
LabeledInputPanel yPanel = new LabeledInputPanel("Y Coordinate: ", 0.0);
fields.add(xPanel);
fields.add(yPanel);
JPanel buttons = new JPanel();
buttons.setLayout(new GridLayout(1, 2));
JButton add = new JButton("Add Control Point");
AddListener addListener = new AddListener(xPanel, yPanel);
add.addActionListener(addListener);
JButton cancel = new JButton("Cancel");
cancel.addActionListener((aev) -> {
dia.dispose();
});
buttons.add(add);
buttons.add(cancel);
/*
* Change focus to each field on action
*/
xPanel.field.addActionListener((aev) -> {
yPanel.field.requestFocusInWindow();
});
yPanel.field.addActionListener((aev) -> {
addListener.actionPerformed(null);
});
dia.add(fields, BorderLayout.CENTER);
dia.add(buttons, BorderLayout.PAGE_END);
dia.pack();
dia.setVisible(true);
}
/**
* Listener for adding points to a curve.
*
* @author bjculkin
*
*/
class AddListener implements ActionListener {
private final LabeledInputPanel xPanel;
private final LabeledInputPanel yPanel;
public AddListener(LabeledInputPanel xPanel, LabeledInputPanel yPanel) {
this.xPanel = xPanel;
this.yPanel = yPanel;
}
@Override
public void actionPerformed(ActionEvent aev) {
/*
* Add point to curve.
*/
double xVal = (Double) xPanel.field.getValue();
double yVal = (Double) yPanel.field.getValue();
TDPoint punkt = new TDPoint(xVal, yVal);
pointModel.addElement(punkt);
curve.controls.add(punkt);
/*
* Reset field values.
*/
xPanel.field.setValue(0.0);
yPanel.field.setValue(0.0);
xPanel.field.requestFocusInWindow();
}
}
}
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