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Version 10 of the Clay Shell program is like the eighth version except that the button stub is replaced by a text field which is used to input commands textually.
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java -jar ".../Clay10.jar" -w 400 -h 300
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package clay10;
import java.awt.*;
import java.awt.event.*;
public class Main {
<<<Just like in the previous version!>>>
}
class ClayFrame extends Frame implements ActionListener {
public ClayFrame(String title, Color color, Dimension size) {
<<<Just like in the previous version!>>>
}
private Color backgroundColor;
private Color hilightColor;
private Color lolightColor;
private Button red;
private Button yellow;
private Button green;
private Button random;
private Button clear;
private Button clean;
private Button theButton; // selection
private TextArea ta;
private Canvas pa;
// panel to house the text area and the canvas
private Panel content;
// panel to house functionality (buttons)
private Panel control;
// text field into which commands will be typed
private TextField input;
private void establishColors() {
<<<Just like in the previous version!>>>
}
private void addComponents() {
// establish the layout manager
setLayout(new BorderLayout());
// create five buttons
red = new Button("Red");
yellow = new Button("Yellow");
green = new Button("Green");
random = new Button("Random");
clear = new Button("Clear");
clean = new Button("Clean");
// create a text area
ta = new TextArea();
// create a painting area
pa = new Canvas();
// create the text field
input = new TextField();
// create a panel to house content and add components
content = new Panel();
content.setLayout(new GridLayout(1,2));
content.add(ta);
content.add(pa);
// create a control panel and add components
control = new Panel();
control.setLayout(new FlowLayout());
control.add(red);
control.add(yellow);
control.add(green);
control.add(random);
control.add(clear);
control.add(clean);
// set backgrounds of buttons to white
red.setBackground(lolightColor);
yellow.setBackground(lolightColor);
green.setBackground(lolightColor);
random.setBackground(lolightColor);
clear.setBackground(lolightColor);
clean.setBackground(lolightColor);
input.setBackground(lolightColor);
ta.setBackground(Color.white);
pa.setBackground(Color.white);
// add action listeners
red.addActionListener(this);
yellow.addActionListener(this);
green.addActionListener(this);
random.addActionListener(this);
clear.addActionListener(this);
clean.addActionListener(this);
input.addActionListener(this);
// add the components to the frame
add(control,BorderLayout.NORTH);
add(input,BorderLayout.SOUTH);
add(content,BorderLayout.CENTER);
}
public void actionPerformed(ActionEvent event) {
Object source = event.getSource();
String command = null;
if ( source instanceof Button ) {
theButton = (Button)source;
command = theButton.getLabel();
} else if ( source instanceof TextField ) {
command = input.getText();
input.setText("");
}
command = command.toLowerCase();
if ( command.equalsIgnoreCase("Red") ) {
ta.append(command + "\n");
pa.setBackground(Color.red);
} else if ( command.equalsIgnoreCase("Yellow") ) {
ta.append(command + "\n");
pa.setBackground(Color.yellow);
} else if ( command.equalsIgnoreCase("Green") ) {
ta.append(command + "\n");
pa.setBackground(Color.green);
} else if ( command.equalsIgnoreCase("Random") ) {
ta.append(command + "\n");
pa.setBackground(randomColor());
} else if ( command.equalsIgnoreCase("Clear") ) {
ta.append(command + "\n");
ta.setText("");
} else if ( command.equalsIgnoreCase("Clean") ) {
ta.append(command + "\n");
pa.setBackground(Color.white);
} else {
ta.append("### Clay error: Unrecognizable command: " + command + "\n");
}
}
private Color randomColor() {
<<<Just like in the previous version!>>>
}
private void paintCanvas(String color) {
<<<Just like in the previous version!>>>
}
class CloseWindow extends WindowAdapter {
<<<Just like in the previous version!>>>
}
}
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