Customizing JCheckBox Check Mark Icon : JCheckBox « Swing « Java Tutorial

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Java Tutorial » Swing » JCheckBox 
14. 11. 12. Customizing JCheckBox Check Mark Icon
Customizing JCheckBox Check Mark Icon
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.GridLayout;

import javax.swing.AbstractButton;
import javax.swing.ButtonModel;
import javax.swing.Icon;
import javax.swing.JCheckBox;
import javax.swing.JFrame;

class CheckBoxIcon implements Icon {
  public void paintIcon(Component component, Graphics g, int x, int y) {
    AbstractButton abstractButton = (AbstractButton)component;
    ButtonModel buttonModel = abstractButton.getModel();
    
    Color color = buttonModel.isSelected() ?  Color.BLUE : Color.RED;
    g.setColor(color);
    
    g.drawRect(1120,20);
    
  }
  public int getIconWidth() {
    return 20;
  }
  public int getIconHeight() {
    return 20;
  }
}

public class IconCheckBoxSample {
  public static void main(String args[]) {
        JFrame frame = new JFrame("Iconizing CheckBox");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        Icon checked = new CheckBoxIcon();
        Icon unchecked = new CheckBoxIcon();
        JCheckBox aCheckBox1 = new JCheckBox("Pizza", unchecked);
        aCheckBox1.setSelectedIcon(checked);
        JCheckBox aCheckBox2 = new JCheckBox("Calzone");
        aCheckBox2.setIcon(unchecked);
        aCheckBox2.setSelectedIcon(checked);
        Icon checkBoxIcon = new CheckBoxIcon();
        JCheckBox aCheckBox3 = new JCheckBox("Anchovies", checkBoxIcon);
        JCheckBox aCheckBox4 = new JCheckBox("Stuffed Crust", checked);
        frame.setLayout(new GridLayout(0,1));
        frame.add(aCheckBox1);
        frame.add(aCheckBox2);
        frame.add(aCheckBox3);
        frame.add(aCheckBox4);
        frame.setSize(300200);
        frame.setVisible(true);
  }
}
14. 11. JCheckBox
14. 11. 1. Creating JCheckBox Components
14. 11. 2. Using JCheckBoxUsing JCheckBox
14. 11. 3. JCheckBox.setMnemonic
14. 11. 4. Listening to JCheckBox Events with an ActionListenerListening to JCheckBox Events with an ActionListener
14. 11. 5. Listening to JCheckBox Events with an ItemListenerListening to JCheckBox Events with an ItemListener
14. 11. 6. Listening to JCheckBox Events with a ChangeListener: listen to armed, pressed, selected, or released stateListening to JCheckBox Events with a ChangeListener: listen to armed, pressed, selected, or released state
14. 11. 7. Check if a JCheckBox is selected in its item change listener
14. 11. 8. Event firing sequence: ActionListener, ItemListener and ChangeListenerEvent firing sequence: ActionListener, ItemListener and ChangeListener
14. 11. 9. Adding an Icon to the Label of a JCheckBox Component
14. 11. 10. Getting and Setting the State of a JCheckbox Component
14. 11. 11. Display an icon when the cursor is moved over the checkbox. This is called the rollover icon.
14. 11. 12. Customizing JCheckBox Check Mark IconCustomizing JCheckBox Check Mark Icon
14. 11. 13. Customizing JCheckBox Look and Feel
14. 11. 14. CheckBox List
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