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	/*
	* 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
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package javax.swing.plaf.synth;

	import javax.swing.*;
	import javax.swing.border.*;
	import javax.swing.plaf.*;
	import javax.swing.plaf.basic.*;
	import java.awt.*;
	import java.beans.PropertyChangeListener;
	import java.beans.PropertyChangeEvent;

	/**
	* Provides the Synth L&F UI delegate for
	* {@link javax.swing.JList}.
	*
	* @author Scott Violet
	* @since 1.7
	*/
	public class SynthListUI extends BasicListUI
	implements PropertyChangeListener, SynthUI {
	private SynthStyle style;
	private boolean useListColors;
	private boolean useUIBorder;

	/**
	* Creates a new UI object for the given component.
	*
	* @param list component to create UI object for
	* @return the UI object
	*/
	public static ComponentUI createUI(JComponent list) {
	return new SynthListUI();
	}

	/**
	* Notifies this UI delegate to repaint the specified component.
	* This method paints the component background, then calls
	* the {@link #paint} 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
	*/
	@Override
	public void update(Graphics g, JComponent c) {
	SynthContext context = getContext(c);

	SynthLookAndFeel.update(context, g);
	context.getPainter().paintListBackground(context,
	g, 0, 0, c.getWidth(), c.getHeight());
	context.dispose();
	paint(g, c);
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public void paintBorder(SynthContext context, Graphics g, int x,
	int y, int w, int h) {
	context.getPainter().paintListBorder(context, g, x, y, w, h);
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void installListeners() {
	super.installListeners();
	list.addPropertyChangeListener(this);
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	public void propertyChange(PropertyChangeEvent e) {
	if (SynthLookAndFeel.shouldUpdateStyle(e)) {
	updateStyle((JList)e.getSource());
	}
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void uninstallListeners() {
	super.uninstallListeners();
	list.removePropertyChangeListener(this);
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void installDefaults() {
	if (list.getCellRenderer() == null \|\|
	(list.getCellRenderer() instanceof UIResource)) {
	list.setCellRenderer(new SynthListCellRenderer());
	}
	updateStyle(list);
	}

	private void updateStyle(JComponent c) {
	SynthContext context = getContext(list, ENABLED);
	SynthStyle oldStyle = style;

	style = SynthLookAndFeel.updateStyle(context, this);

	if (style != oldStyle) {
	context.setComponentState(SELECTED);
	Color sbg = list.getSelectionBackground();
	if (sbg == null \|\| sbg instanceof UIResource) {
	list.setSelectionBackground(style.getColor(
	context, ColorType.TEXT_BACKGROUND));
	}

	Color sfg = list.getSelectionForeground();
	if (sfg == null \|\| sfg instanceof UIResource) {
	list.setSelectionForeground(style.getColor(
	context, ColorType.TEXT_FOREGROUND));
	}

	useListColors = style.getBoolean(context,
	"List.rendererUseListColors", true);
	useUIBorder = style.getBoolean(context,
	"List.rendererUseUIBorder", true);

	int height = style.getInt(context, "List.cellHeight", -1);
	if (height != -1) {
	list.setFixedCellHeight(height);
	}
	if (oldStyle != null) {
	uninstallKeyboardActions();
	installKeyboardActions();
	}
	}
	context.dispose();
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	protected void uninstallDefaults() {
	super.uninstallDefaults();

	SynthContext context = getContext(list, ENABLED);

	style.uninstallDefaults(context);
	context.dispose();
	style = null;
	}

	/**
	* {@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);
	}


	private class SynthListCellRenderer extends DefaultListCellRenderer.UIResource {
	@Override public String getName() {
	return "List.cellRenderer";
	}

	@Override public void setBorder(Border b) {
	if (useUIBorder \|\| b instanceof SynthBorder) {
	super.setBorder(b);
	}
	}

	@Override public Component getListCellRendererComponent(JList list, Object value,
	int index, boolean isSelected, boolean cellHasFocus) {
	if (!useListColors && (isSelected \|\| cellHasFocus)) {
	SynthLookAndFeel.setSelectedUI((SynthLabelUI)SynthLookAndFeel.
	getUIOfType(getUI(), SynthLabelUI.class),
	isSelected, cellHasFocus, list.isEnabled(), false);
	}
	else {
	SynthLookAndFeel.resetSelectedUI();
	}

	super.getListCellRendererComponent(list, value, index,
	isSelected, cellHasFocus);
	return this;
	}

	@Override public void paint(Graphics g) {
	super.paint(g);
	SynthLookAndFeel.resetSelectedUI();
	}
	}
	}

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