/* * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.swing.plaf.synth; import java.beans.*;import javax.swing.*;import java.awt.Dimension;import java.awt.Graphics;import java.awt.Insets;import javax.swing.plaf.ComponentUI;import javax.swing.plaf.SeparatorUI;import javax.swing.plaf.UIResource;import javax.swing.plaf.DimensionUIResource; /** * Provides the Synth L&F UI delegate for * {@link javax.swing.JSeparator}. * * @author Shannon Hickey * @author Joshua Outwater * @since 1.7 */public class SynthSeparatorUI extends SeparatorUI                              implements PropertyChangeListener, SynthUI {    private SynthStyle style;     /**     * Creates a new UI object for the given component.     *     * @param c component to create UI object for     * @return the UI object     */    public static ComponentUI createUI(JComponent c) {        return new SynthSeparatorUI();    }     /**     * @inheritDoc     */    @Override    public void installUI(JComponent c) {        installDefaults((JSeparator)c);        installListeners((JSeparator)c);    }     /**     * @inheritDoc     */    @Override    public void uninstallUI(JComponent c) {        uninstallListeners((JSeparator)c);        uninstallDefaults((JSeparator)c);    }     /**     * Installs default setting. This method is called when a     * {@code LookAndFeel} is installed.     */    public void installDefaults(JSeparator c) {        updateStyle(c);    }     private void updateStyle(JSeparator sep) {        SynthContext context = getContext(sep, ENABLED);        SynthStyle oldStyle = style;         style = SynthLookAndFeel.updateStyle(context, this);         if (style != oldStyle) {            if (sep instanceof JToolBar.Separator) {                Dimension size = ((JToolBar.Separator)sep).getSeparatorSize();                if (size == null || size instanceof UIResource) {                    size = (DimensionUIResource)style.get(                                      context, "ToolBar.separatorSize");                    if (size == null) {                        size = new DimensionUIResource(10, 10);                    }                    ((JToolBar.Separator)sep).setSeparatorSize(size);                }            }        }         context.dispose();    }     /**     * Uninstalls default setting. This method is called when a     * {@code LookAndFeel} is uninstalled.     */    public void uninstallDefaults(JSeparator c) {        SynthContext context = getContext(c, ENABLED);         style.uninstallDefaults(context);        context.dispose();        style = null;    }     /**     * Installs listeners. This method is called when a     * {@code LookAndFeel} is installed.     */    public void installListeners(JSeparator c) {        c.addPropertyChangeListener(this);    }     /**     * Uninstalls listeners. This method is called when a     * {@code LookAndFeel} is uninstalled.     */    public void uninstallListeners(JSeparator c) {        c.removePropertyChangeListener(this);    }     /**     * Notifies this UI delegate to repaint the specified component.     * This method paints the component background, then calls     * the {@link #paint(SynthContext,Graphics)} method.     *     * <p>In general, this method does not need to be overridden by subclasses.     * All Look and Feel rendering code should reside in the {@code paint} method.     *     * @param g the {@code Graphics} object used for painting     * @param c the component being painted     * @see #paint(SynthContext,Graphics)     */    @Override    public void update(Graphics g, JComponent c) {        SynthContext context = getContext(c);         JSeparator separator = (JSeparator)context.getComponent();        SynthLookAndFeel.update(context, g);        context.getPainter().paintSeparatorBackground(context,                          g, 0, 0, c.getWidth(), c.getHeight(),                          separator.getOrientation());        paint(context, g);        context.dispose();    }     /**     * Paints the specified component according to the Look and Feel.     * <p>This method is not used by Synth Look and Feel.     * Painting is handled by the {@link #paint(SynthContext,Graphics)} method.     *     * @param g the {@code Graphics} object used for painting     * @param c the component being painted     * @see #paint(SynthContext,Graphics)     */    @Override    public void paint(Graphics g, JComponent c) {        SynthContext context = getContext(c);         paint(context, g);        context.dispose();    }     /**     * Paints the specified component.     *     * @param context context for the component being painted     * @param g the {@code Graphics} object used for painting     * @see #update(Graphics,JComponent)     */    protected void paint(SynthContext context, Graphics g) {        JSeparator separator = (JSeparator)context.getComponent();        context.getPainter().paintSeparatorForeground(context, g, 0, 0,                             separator.getWidth(), separator.getHeight(),                             separator.getOrientation());    }     /**     * @inheritDoc     */    @Override    public void paintBorder(SynthContext context, Graphics g, int x,                            int y, int w, int h) {        JSeparator separator = (JSeparator)context.getComponent();        context.getPainter().paintSeparatorBorder(context, g, x, y, w, h,                                                  separator.getOrientation());    }     /**     * @inheritDoc     */    @Override    public Dimension getPreferredSize(JComponent c) {        SynthContext context = getContext(c);         int thickness = style.getInt(context, "Separator.thickness", 2);        Insets insets = c.getInsets();        Dimension size;         if (((JSeparator)c).getOrientation() == JSeparator.VERTICAL) {            size = new Dimension(insets.left + insets.right + thickness,                                 insets.top + insets.bottom);        } else {            size = new Dimension(insets.left + insets.right,                                 insets.top + insets.bottom + thickness);        }        context.dispose();        return size;    }     /**     * @inheritDoc     */    @Override    public Dimension getMinimumSize(JComponent c) {        return getPreferredSize(c);    }     /**     * @inheritDoc     */    @Override    public Dimension getMaximumSize(JComponent c) {        return new Dimension(Short.MAX_VALUE, Short.MAX_VALUE);    }     /**     * @inheritDoc     */    @Override    public SynthContext getContext(JComponent c) {        return getContext(c, SynthLookAndFeel.getComponentState(c));    }     private SynthContext getContext(JComponent c, int state) {        return SynthContext.getContext(SynthContext.class, c,                    SynthLookAndFeel.getRegion(c), style, state);    }     public void propertyChange(PropertyChangeEvent evt) {        if (SynthLookAndFeel.shouldUpdateStyle(evt)) {            updateStyle((JSeparator)evt.getSource());        }    }}