/* * @(#)SynthTextPaneUI.java	1.8 03/12/19 * * Copyright 2004 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */package javax.swing.plaf.synth;import javax.swing.*;import javax.swing.text.*;import javax.swing.plaf.*;import java.beans.PropertyChangeEvent;import java.awt.*;/** * Provides the look and feel for a styled text editor in the * Synth look and feel. * <p> * <strong>Warning:</strong> * Serialized objects of this class will not be compatible with * future Swing releases. The current serialization support is * appropriate for short term storage or RMI between applications running * the same version of Swing.  As of 1.4, support for long term storage * of all JavaBeans<sup><font size="-2">TM</font></sup> * has been added to the <code>java.beans</code> package. * Please see {@link java.beans.XMLEncoder}. * * @author  Shannon Hickey * @version 1.8 12/19/03 */class SynthTextPaneUI extends SynthEditorPaneUI {    /**     * Creates a UI for the JTextPane.     *     * @param c the JTextPane object     * @return the UI     */    public static ComponentUI createUI(JComponent c) {        return new SynthTextPaneUI();    }    /**     * Fetches the name used as a key to lookup properties through the     * UIManager.  This is used as a prefix to all the standard     * text properties.     *     * @return the name ("TextPane")     */    protected String getPropertyPrefix() {        return "TextPane";    }    public void installUI(JComponent c) {        super.installUI(c);        updateForeground(c.getForeground());        updateFont(c.getFont());    }    /**     * This method gets called when a bound property is changed     * on the associated JTextComponent.  This is a hook     * which UI implementations may change to reflect how the     * UI displays bound properties of JTextComponent subclasses.     * If the font, foreground or document has changed, the     * the appropriate property is set in the default style of     * the document.     *     * @param evt the property change event     */    protected void propertyChange(PropertyChangeEvent evt) {        super.propertyChange(evt);        String name = evt.getPropertyName();        if (name.equals("foreground")) {            updateForeground((Color)evt.getNewValue());        } else if (name.equals("font")) {            updateFont((Font)evt.getNewValue());        } else if (name.equals("document")) {            JComponent comp = getComponent();            updateForeground(comp.getForeground());            updateFont(comp.getFont());        }    }    /**     * Update the color in the default style of the document.     *     * @param color the new color to use or null to remove the color attribute     *              from the document's style     */    private void updateForeground(Color color) {        StyledDocument doc = (StyledDocument)getComponent().getDocument();        Style style = doc.getStyle(StyleContext.DEFAULT_STYLE);        if (style == null) {            return;        }        if (color == null) {            style.removeAttribute(StyleConstants.Foreground);        } else {            StyleConstants.setForeground(style, color);        }    }        /**     * Update the font in the default style of the document.     *     * @param font the new font to use or null to remove the font attribute     *             from the document's style     */    private void updateFont(Font font) {        StyledDocument doc = (StyledDocument)getComponent().getDocument();        Style style = doc.getStyle(StyleContext.DEFAULT_STYLE);        if (style == null) {            return;        }        if (font == null) {            style.removeAttribute(StyleConstants.FontFamily);            style.removeAttribute(StyleConstants.FontSize);            style.removeAttribute(StyleConstants.Bold);            style.removeAttribute(StyleConstants.Italic);        } else {            StyleConstants.setFontFamily(style, font.getName());            StyleConstants.setFontSize(style, font.getSize());            StyleConstants.setBold(style, font.isBold());            StyleConstants.setItalic(style, font.isItalic());        }    }    void paintBackground(SynthContext context, Graphics g, JComponent c) {        context.getPainter().paintTextPaneBackground(context, g, 0, 0,                                                  c.getWidth(), c.getHeight());    }    public void paintBorder(SynthContext context, Graphics g, int x,                            int y, int w, int h) {        context.getPainter().paintTextPaneBorder(context, g, x, y, w, h);    }}