/*

 * Copyright (c) 2002, 2013, 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

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 */

package javax.swing.plaf.synth;

import javax.swing.*;

import javax.swing.colorchooser.*;

import javax.swing.plaf.*;

import javax.swing.plaf.basic.BasicColorChooserUI;

import java.awt.*;

import java.beans.PropertyChangeEvent;

import java.beans.PropertyChangeListener;

/**

 * Provides the Synth L&F UI delegate for

 * {@link javax.swing.JColorChooser}.

 *

 * @author Tom Santos

 * @author Steve Wilson

 * @since 1.7

 */

public class SynthColorChooserUI extends BasicColorChooserUI 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 SynthColorChooserUI();

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected AbstractColorChooserPanel[] createDefaultChoosers() {

        SynthContext context = getContext(chooser, ENABLED);

        AbstractColorChooserPanel[] panels = (AbstractColorChooserPanel[])

                     context.getStyle().get(context, "ColorChooser.panels");

        if (panels == null) {

            panels = ColorChooserComponentFactory.getDefaultChooserPanels();

        }

        return panels;

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void installDefaults() {

        super.installDefaults();

        updateStyle(chooser);

    }

    private void updateStyle(JComponent c) {

        SynthContext context = getContext(c, ENABLED);

        style = SynthLookAndFeel.updateStyle(context, this);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void uninstallDefaults() {

        SynthContext context = getContext(chooser, ENABLED);

        style.uninstallDefaults(context);

        style = null;

        super.uninstallDefaults();

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void installListeners() {

        super.installListeners();

        chooser.addPropertyChangeListener(this);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void uninstallListeners() {

        chooser.removePropertyChangeListener(this);

        super.uninstallListeners();

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public SynthContext getContext(JComponent c) {

        return getContext(c, getComponentState(c));

    }

    private SynthContext getContext(JComponent c, int state) {

        return SynthContext.getContext(c, style, state);

    }

    private int getComponentState(JComponent c) {

        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().paintColorChooserBackground(context, g, 0, 0,

                                                  c.getWidth(), c.getHeight());

        paint(context, g);

    }

    /**

     * 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);

    }

    /**

     * Paints the specified component.

     * This implementation does not perform any actions.

     *

     * @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) {

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public void paintBorder(SynthContext context, Graphics g, int x,

                            int y, int w, int h) {

        context.getPainter().paintColorChooserBorder(context, g, x, y,w,h);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public void propertyChange(PropertyChangeEvent e) {

        if (SynthLookAndFeel.shouldUpdateStyle(e)) {

            updateStyle((JColorChooser)e.getSource());

        }

    }

}