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import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.Icon;
import javax.swing.JColorChooser;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.colorchooser.AbstractColorChooserPanel;
import javax.swing.colorchooser.ColorSelectionModel;
public class MainClass {
public static void main(String[] a) {
final JColorChooser colorChooser = new JColorChooser();
SystemColorChooserPanel newChooser = new SystemColorChooserPanel();
colorChooser.addChooserPanel(newChooser);
ActionListener okActionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
System.out.println(colorChooser.getColor());
}
};
ActionListener cancelActionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
System.out.println("Cancel");
}
};
final JDialog dialog = JColorChooser.createDialog(null, "Change Button Background", true,
colorChooser, okActionListener, cancelActionListener);
dialog.setVisible(true);
}
}
class SystemColorChooserPanel extends AbstractColorChooserPanel implements ItemListener {
JComboBox comboBox;
String labels[] = { "BLACK", "BLUE", "CYAN"};
Color colors[] = { Color.BLACK, Color.BLUE, Color.CYAN};
private void setColor(Color newColor) {
int position = findColorPosition(newColor);
comboBox.setSelectedIndex(position);
}
private int findColorLabel(Object label) {
String stringLabel = label.toString();
int position = -1;
for (int i = 0, n = labels.length; i < n; i++) {
if (stringLabel.equals(labels[i])) {
position = i;
break;
}
}
return position;
}
private int findColorPosition(Color color) {
int position = colors.length - 1;
int colorRGB = color.getRGB();
for (int i = 0, n = colors.length; i < n; i++) {
if ((colors[i] != null) && (colorRGB == colors[i].getRGB())) {
position = i;
break;
}
}
return position;
}
public void itemStateChanged(ItemEvent itemEvent) {
int state = itemEvent.getStateChange();
if (state == ItemEvent.SELECTED) {
int position = findColorLabel(itemEvent.getItem());
if ((position != -1) && (position != labels.length - 1)) {
ColorSelectionModel selectionModel = getColorSelectionModel();
selectionModel.setSelectedColor(colors[position]);
}
}
}
public String getDisplayName() {
return "SystemColor";
}
public Icon getSmallDisplayIcon() {
return new MyIcon(Color.BLUE);
}
public Icon getLargeDisplayIcon() {
return new MyIcon(Color.GREEN);
}
protected void buildChooser() {
comboBox = new JComboBox(labels);
comboBox.addItemListener(this);
add(comboBox);
}
public void updateChooser() {
Color color = getColorFromModel();
setColor(color);
}
}
class MyIcon implements Icon {
Color myColor;
public MyIcon(Color myColor) {
this.myColor = myColor;
}
public int getIconWidth() {
return 16;
}
public int getIconHeight() {
return 16;
}
public void paintIcon(Component c, Graphics g, int x, int y) {
g.setColor(myColor);
g.drawRect(0, 0, 16, 16);
}
}
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