/* * @(#)BasicRadioButtonUI.java	1.69 03/12/19 * * Copyright 2004 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */package javax.swing.plaf.basic;import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.border.*;import javax.swing.plaf.*;import javax.swing.text.View;import com.sun.java.swing.SwingUtilities2;/** * RadioButtonUI implementation for BasicRadioButtonUI * * @version 1.69 12/19/03 * @author Jeff Dinkins */public class BasicRadioButtonUI extends BasicToggleButtonUI {    private final static BasicRadioButtonUI radioButtonUI = new BasicRadioButtonUI();    protected Icon icon;    private boolean defaults_initialized = false;    private final static String propertyPrefix = "RadioButton" + ".";     // ********************************    //        Create PLAF     // ********************************    public static ComponentUI createUI(JComponent b) {        return radioButtonUI;    }    protected String getPropertyPrefix() {        return propertyPrefix;     }    // ********************************    //        Install PLAF     // ********************************    protected void installDefaults(AbstractButton b){        super.installDefaults(b);        if(!defaults_initialized) {            icon = UIManager.getIcon(getPropertyPrefix() + "icon");            defaults_initialized = true;        }    }    // ********************************    //        Uninstall PLAF     // ********************************    protected void uninstallDefaults(AbstractButton b){        super.uninstallDefaults(b);        defaults_initialized = false;    }    public Icon getDefaultIcon() {        return icon;    }    /* These Dimensions/Rectangles are allocated once for all      * RadioButtonUI.paint() calls.  Re-using rectangles      * rather than allocating them in each paint call substantially      * reduced the time it took paint to run.  Obviously, this      * method can't be re-entered.     */    private static Dimension size = new Dimension();    private static Rectangle viewRect = new Rectangle();    private static Rectangle iconRect = new Rectangle();    private static Rectangle textRect = new Rectangle();    /**     * paint the radio button     */    public synchronized void paint(Graphics g, JComponent c) {        AbstractButton b = (AbstractButton) c;        ButtonModel model = b.getModel();        Font f = c.getFont();        g.setFont(f);        FontMetrics fm = SwingUtilities2.getFontMetrics(c, g, f);        Insets i = c.getInsets();        size = b.getSize(size);        viewRect.x = i.left;	viewRect.y = i.top;        viewRect.width = size.width - (i.right + viewRect.x);        viewRect.height = size.height - (i.bottom + viewRect.y);        iconRect.x = iconRect.y = iconRect.width = iconRect.height = 0;        textRect.x = textRect.y = textRect.width = textRect.height = 0;        Icon altIcon = b.getIcon();        Icon selectedIcon = null;        Icon disabledIcon = null;        String text = SwingUtilities.layoutCompoundLabel(            c, fm, b.getText(), altIcon != null ? altIcon : getDefaultIcon(),            b.getVerticalAlignment(), b.getHorizontalAlignment(),            b.getVerticalTextPosition(), b.getHorizontalTextPosition(),            viewRect, iconRect, textRect,	    b.getText() == null ? 0 : 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 = (Icon) b.getRolloverSelectedIcon();                        if (altIcon == null) {                                altIcon = (Icon) b.getSelectedIcon();                        }                } else {                        altIcon = (Icon) b.getSelectedIcon();                }            } else if(b.isRolloverEnabled() && model.isRollover()) {                altIcon = (Icon) b.getRolloverIcon();            }             if(altIcon == null) {                altIcon = b.getIcon();            }            altIcon.paintIcon(c, g, iconRect.x, iconRect.y);        } else {            getDefaultIcon().paintIcon(c, g, iconRect.x, iconRect.y);        }        // Draw the Text        if(text != null) {            View v = (View) c.getClientProperty(BasicHTML.propertyKey);            if (v != null) {		v.paint(g, textRect);            } else {		paintText(g, b, textRect, text);	    }	    if(b.hasFocus() && b.isFocusPainted() && 	       textRect.width > 0 && textRect.height > 0 ) {		paintFocus(g, textRect, size);	    }        }    }    protected void paintFocus(Graphics g, Rectangle textRect, Dimension size){    }    /* These Insets/Rectangles are allocated once for all      * RadioButtonUI.getPreferredSize() calls.  Re-using rectangles      * rather than allocating them in each call substantially      * reduced the time it took getPreferredSize() to run.  Obviously,      * this method can't be re-entered.     */    private static Rectangle prefViewRect = new Rectangle();    private static Rectangle prefIconRect = new Rectangle();    private static Rectangle prefTextRect = new Rectangle();    private static Insets prefInsets = new Insets(0, 0, 0, 0);    /**     * The preferred size of the radio button     */    public Dimension getPreferredSize(JComponent c) {        if(c.getComponentCount() > 0) {            return null;        }        AbstractButton b = (AbstractButton) c;        String text = b.getText();        Icon buttonIcon = (Icon) b.getIcon();        if(buttonIcon == null) {            buttonIcon = getDefaultIcon();        }        Font font = b.getFont();        FontMetrics fm = b.getFontMetrics(font);        prefViewRect.x = prefViewRect.y = 0;        prefViewRect.width = Short.MAX_VALUE;        prefViewRect.height = Short.MAX_VALUE;        prefIconRect.x = prefIconRect.y = prefIconRect.width = prefIconRect.height = 0;        prefTextRect.x = prefTextRect.y = prefTextRect.width = prefTextRect.height = 0;        SwingUtilities.layoutCompoundLabel(            c, fm, text, buttonIcon,            b.getVerticalAlignment(), b.getHorizontalAlignment(),            b.getVerticalTextPosition(), b.getHorizontalTextPosition(),            prefViewRect, prefIconRect, prefTextRect,             text == null ? 0 : b.getIconTextGap());        // find the union of the icon and text rects (from Rectangle.java)        int x1 = Math.min(prefIconRect.x, prefTextRect.x);        int x2 = Math.max(prefIconRect.x + prefIconRect.width,                           prefTextRect.x + prefTextRect.width);        int y1 = Math.min(prefIconRect.y, prefTextRect.y);        int y2 = Math.max(prefIconRect.y + prefIconRect.height,                           prefTextRect.y + prefTextRect.height);        int width = x2 - x1;        int height = y2 - y1;        prefInsets = b.getInsets(prefInsets);        width += prefInsets.left + prefInsets.right;        height += prefInsets.top + prefInsets.bottom;        return new Dimension(width, height);    }}