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| Back to [[Into Java - Part XVI]]
| | [[Category:For Removal]] |
| <PRE>
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| import java.awt.*;
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| import java.awt.event.*;
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| import javax.swing.*;
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| import javax.swing.border.*;
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| public class TopButtonPanel extends JPanel
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| implements ActionListener {
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| private PaintBox owner;
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| private JButton lineButton;
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| private JButton rectButton;
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| private JButton ovalButton;
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| private JButton filledButton;
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| private JLabel shape;
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| private boolean filled = true;
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| public TopButtonPanel (PaintBox o) {
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| owner = o;
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| setLayout(new GridLayout(1, 5));
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| lineButton = new JButton("Line");
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| lineButton.addActionListener(this);
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| add(lineButton);
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| rectButton = new JButton("Rectangle");
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| rectButton.addActionListener(this);
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| add(rectButton);
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| ovalButton = new JButton("Oval");
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| ovalButton.addActionListener(this);
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| add(ovalButton);
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| filledButton = new JButton("Filled");
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| filledButton.addActionListener(this);
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| add(filledButton);
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| shape = new JLabel(" Rectangle");
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| shape.setBackground(Color.white);
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| shape.setForeground(Color.black);
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| shape.setOpaque(true);
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| shape.setBorder(BorderFactory.createBevelBorder(
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| BevelBorder.LOWERED));
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| add(shape);
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| }
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| public void actionPerformed(ActionEvent e) {
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| Object obj = e.getSource();
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| if (obj == filledButton) {
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| if (filled) { // filled true
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| filled = false;
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| owner.setFilled(filled);
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| filledButton.setText("Not filled");
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| } else {
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| filled = true;
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| owner.setFilled(filled);
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| filledButton.setText("Filled");
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| }
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| /* constants found in PaintPanel are used*/
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| } else if (obj == lineButton) {
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| owner.setShape(PaintPanel.LINE);
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| shape.setText(" Line");
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| } else if (obj == rectButton) {
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| owner.setShape(PaintPanel.RECTANGLE);
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| shape.setText(" Rectangle");
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| } else { // must be ovalButton
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| owner.setShape(PaintPanel.OVAL);
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| shape.setText(" Oval");
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| }
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| }
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| }
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| </PRE>
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| [[Category:Java Articles]] | |