/* * 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.awt.*;import java.beans.PropertyChangeEvent;import java.beans.PropertyChangeListener; import javax.swing.*;import javax.swing.plaf.basic.BasicHTML;import javax.swing.plaf.basic.BasicToolTipUI;import javax.swing.plaf.ComponentUI;import javax.swing.text.View;  /** * Provides the Synth L&F UI delegate for * {@link javax.swing.JToolTip}. * * @author Joshua Outwater * @since 1.7 */public class SynthToolTipUI extends BasicToolTipUI                            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 SynthToolTipUI();    }     /**     * @inheritDoc     */    @Override    protected void installDefaults(JComponent c) {        updateStyle(c);    }     private void updateStyle(JComponent c) {        SynthContext context = getContext(c, ENABLED);        style = SynthLookAndFeel.updateStyle(context, this);        context.dispose();    }     /**     * @inheritDoc     */    @Override    protected void uninstallDefaults(JComponent c) {        SynthContext context = getContext(c, ENABLED);        style.uninstallDefaults(context);        context.dispose();        style = null;    }     /**     * @inheritDoc     */    @Override    protected void installListeners(JComponent c) {        c.addPropertyChangeListener(this);    }     /**     * @inheritDoc     */    @Override    protected void uninstallListeners(JComponent c) {        c.removePropertyChangeListener(this);    }     /**     * @inheritDoc     */    @Override    public SynthContext getContext(JComponent c) {        return getContext(c, getComponentState(c));    }     private SynthContext getContext(JComponent c, int state) {        return SynthContext.getContext(SynthContext.class, c,                    SynthLookAndFeel.getRegion(c), style, state);    }     private int getComponentState(JComponent c) {        JComponent comp = ((JToolTip)c).getComponent();         if (comp != null && !comp.isEnabled()) {            return DISABLED;        }        return SynthLookAndFeel.getComponentState(c);    }     /**     * 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);         SynthLookAndFeel.update(context, g);        context.getPainter().paintToolTipBackground(context,                          g, 0, 0, c.getWidth(), c.getHeight());        paint(context, g);        context.dispose();    }     /**     * @inheritDoc     */    @Override    public void paintBorder(SynthContext context, Graphics g, int x,                            int y, int w, int h) {        context.getPainter().paintToolTipBorder(context, g, x, y, w, h);    }     /**     * 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) {        JToolTip tip = (JToolTip)context.getComponent();         Insets insets = tip.getInsets();        View v = (View)tip.getClientProperty(BasicHTML.propertyKey);        if (v != null) {            Rectangle paintTextR = new Rectangle(insets.left, insets.top,                  tip.getWidth() - (insets.left + insets.right),                  tip.getHeight() - (insets.top + insets.bottom));            v.paint(g, paintTextR);        } else {            g.setColor(context.getStyle().getColor(context,                                                   ColorType.TEXT_FOREGROUND));            g.setFont(style.getFont(context));            context.getStyle().getGraphicsUtils(context).paintText(                context, g, tip.getTipText(), insets.left, insets.top, -1);        }    }     /**     * @inheritDoc     */    @Override    public Dimension getPreferredSize(JComponent c) {        SynthContext context = getContext(c);        Insets insets = c.getInsets();        Dimension prefSize = new Dimension(insets.left+insets.right,                                           insets.top+insets.bottom);        String text = ((JToolTip)c).getTipText();         if (text != null) {            View v = (c != null) ? (View) c.getClientProperty("html") : null;            if (v != null) {                prefSize.width += (int) v.getPreferredSpan(View.X_AXIS);                prefSize.height += (int) v.getPreferredSpan(View.Y_AXIS);            } else {                Font font = context.getStyle().getFont(context);                FontMetrics fm = c.getFontMetrics(font);                prefSize.width += context.getStyle().getGraphicsUtils(context).                                  computeStringWidth(context, font, fm, text);                prefSize.height += fm.getHeight();            }        }        context.dispose();        return prefSize;    }     /**     * @inheritDoc     */    @Override    public void propertyChange(PropertyChangeEvent e) {        if (SynthLookAndFeel.shouldUpdateStyle(e)) {            updateStyle((JToolTip)e.getSource());        }        String name = e.getPropertyName();        if (name.equals("tiptext") || "font".equals(name) ||                "foreground".equals(name)) {            // remove the old html view client property if one            // existed, and install a new one if the text installed            // into the JLabel is html source.            JToolTip tip = ((JToolTip) e.getSource());            String text = tip.getTipText();            BasicHTML.updateRenderer(tip, text);        }    }}