package com.han;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Insets;
import java.awt.Rectangle;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.AbstractButton;
import javax.swing.ButtonModel;
import javax.swing.Icon;
import javax.swing.JCheckBox;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.SwingUtilities;
import javax.swing.plaf.basic.BasicHTML;
import javax.swing.plaf.metal.MetalCheckBoxUI;
import javax.swing.plaf.metal.MetalLookAndFeel;
import javax.swing.text.View;
import sun.swing.SwingUtilities2;
/**
* 实现一种个性化的CheckBox
* @author HAN
*
*/
public class CheckBoxCustomized extends JDialog {
/**
*
*/
private static final long serialVersionUID = 5925267340818484608L;
/**
* Launch the application
* @param args
*/
public static void main(String args[]) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
CheckBoxCustomized dialog = new CheckBoxCustomized();
dialog.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
dialog.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the dialog
*/
public CheckBoxCustomized() {
super();
getContentPane().setLayout(null);
setBounds(100, 100, 500, 375);
final JCheckBox checkBox = new JCheckBox();
checkBox.setText("New JCheckBox");
checkBox.setBounds(87, 57, 118, 26);
getContentPane().add(checkBox);
//
MetalCheckBoxUI ui = new MetalCheckBoxUI(){
public synchronized void paint(Graphics g, JComponent c) {
AbstractButton b = (AbstractButton) c;
ButtonModel model = b.getModel();
Dimension size = c.getSize();
Font f = c.getFont();
g.setFont(f);
FontMetrics fm = SwingUtilities2.getFontMetrics(c, g, f);
Rectangle viewRect = new Rectangle(size);
Rectangle iconRect = new Rectangle();
Rectangle textRect = new Rectangle();
Insets i = c.getInsets();
viewRect.x += i.left;
viewRect.y += i.top;
viewRect.width -= (i.right + viewRect.x);
viewRect.height -= (i.bottom + viewRect.y);
Icon altIcon = b.getIcon();
String text = SwingUtilities.layoutCompoundLabel(
c, fm, b.getText(), altIcon != null ? altIcon : getDefaultIcon(),
b.getVerticalAlignment(), b.getHorizontalAlignment(),
b.getVerticalTextPosition(), b.getHorizontalTextPosition(),
viewRect, iconRect, textRect, b.getIconTextGap());
// fill background
if(c.isOpaque()) {
g.setColor(b.getBackground());
g.fillRect(0,0, size.width, size.height);
}
// Paint the radio button
if(altIcon != null) {
if(!model.isEnabled()) {
if(model.isSelected()) {
altIcon = b.getDisabledSelectedIcon();
} else {
altIcon = b.getDisabledIcon();
}
} else if(model.isPressed() && model.isArmed()) {
altIcon = b.getPressedIcon();
if(altIcon == null) {
// Use selected icon
altIcon = b.getSelectedIcon();
}
} else if(model.isSelected()) {
if(b.isRolloverEnabled() && model.isRollover()) {
altIcon = b.getRolloverSelectedIcon();
if (altIcon == null) {
altIcon = b.getSelectedIcon();
}
} else {
altIcon = b.getSelectedIcon();
}
} else if(b.isRolloverEnabled() && model.isRollover()) {
altIcon = b.getRolloverIcon();
}
if(altIcon == null) {
altIcon = b.getIcon();
}
altIcon.paintIcon(c, g, iconRect.x, iconRect.y);
} else {
System.out.println("here");
// paint the button icon by myself
if (model.isEnabled()) {
if (model.isPressed() && model.isArmed()) {
g.setColor(MetalLookAndFeel.getControlShadow());
g.fillRect(iconRect.x, iconRect.y, 13, 13);
}
g.setColor(c.getForeground());
} else {
g.setColor(MetalLookAndFeel.getControlShadow());
}
if (model.isSelected()) {
int controlSize = 13;
g.fillRect(iconRect.x + 3, iconRect.y + 5, 2,
controlSize - 8);
g.drawLine(iconRect.x + (controlSize - 4),
iconRect.y + 3, iconRect.x + 5, iconRect.y
+ (controlSize - 6));
g.drawLine(iconRect.x + (controlSize - 4),
iconRect.y + 4, iconRect.x + 5, iconRect.y
+ (controlSize - 5));
}
}
// Draw the Text
if(text != null) {
View v = (View) c.getClientProperty(BasicHTML.propertyKey);
if (v != null) {
v.paint(g, textRect);
} else {
int mnemIndex = b.getDisplayedMnemonicIndex();
if(model.isEnabled()) {
// *** paint the text normally
g.setColor(b.getForeground());
} else {
// *** paint the text disabled
g.setColor(getDisabledTextColor());
}
SwingUtilities2.drawStringUnderlineCharAt(c,g,text,
mnemIndex, textRect.x, textRect.y + fm.getAscent());
}
if(b.hasFocus() && b.isFocusPainted() &&
textRect.width > 0 && textRect.height > 0 ) {
paintFocus(g,textRect,size);
}
}
}
};
checkBox.setUI(ui);
System.out.println(checkBox.isFocusPainted());
checkBox.setFocusPainted(false); // this is optional
System.out.println();
}
}
