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	/*
	* Copyright (c) 1997, 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 com.sun.java.swing.plaf.windows;

	import java.awt.*;
	import java.awt.event.*;

	import java.io.*;
	import java.util.*;

	import javax.swing.plaf.basic.*;
	import javax.swing.*;
	import javax.swing.plaf.*;

	import javax.swing.tree.*;

	import static com.sun.java.swing.plaf.windows.TMSchema.*;
	import static com.sun.java.swing.plaf.windows.XPStyle.Skin;


	/**
	* A Windows tree.
	* <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. A future release of Swing will provide support for
	* long term persistence.
	*
	* @author Scott Violet
	*/
	public class WindowsTreeUI extends BasicTreeUI {

	public static ComponentUI createUI( JComponent c )
	{
	return new WindowsTreeUI();
	}


	/**
	* Ensures that the rows identified by beginRow through endRow are
	* visible.
	*/
	protected void ensureRowsAreVisible(int beginRow, int endRow) {
	if(tree != null && beginRow >= 0 && endRow < getRowCount(tree)) {
	Rectangle visRect = tree.getVisibleRect();
	if(beginRow == endRow) {
	Rectangle scrollBounds = getPathBounds(tree, getPathForRow
	(tree, beginRow));

	if(scrollBounds != null) {
	scrollBounds.x = visRect.x;
	scrollBounds.width = visRect.width;
	tree.scrollRectToVisible(scrollBounds);
	}
	}
	else {
	Rectangle beginRect = getPathBounds(tree, getPathForRow
	(tree, beginRow));
	if (beginRect != null) {
	Rectangle testRect = beginRect;
	int beginY = beginRect.y;
	int maxY = beginY + visRect.height;

	for(int counter = beginRow + 1; counter <= endRow; counter++) {
	testRect = getPathBounds(tree,
	getPathForRow(tree, counter));
	if(testRect != null && (testRect.y + testRect.height) > maxY) {
	counter = endRow;
	}
	}

	if (testRect == null) {
	return;
	}

	tree.scrollRectToVisible(new Rectangle(visRect.x, beginY, 1,
	testRect.y + testRect.height-
	beginY));
	}
	}
	}
	}

	static protected final int HALF_SIZE = 4;
	static protected final int SIZE = 9;

	/**
	* Returns the default cell renderer that is used to do the
	* stamping of each node.
	*/
	protected TreeCellRenderer createDefaultCellRenderer() {
	return new WindowsTreeCellRenderer();
	}

	/**
	* The minus sign button icon
	* <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. A future release of Swing will provide support for
	* long term persistence.
	*/
	public static class ExpandedIcon implements Icon, Serializable {

	static public Icon createExpandedIcon() {
	return new ExpandedIcon();
	}

	Skin getSkin(Component c) {
	XPStyle xp = XPStyle.getXP();
	return (xp != null) ? xp.getSkin(c, Part.TVP_GLYPH) : null;
	}

	public void paintIcon(Component c, Graphics g, int x, int y) {
	Skin skin = getSkin(c);
	if (skin != null) {
	skin.paintSkin(g, x, y, State.OPENED);
	return;
	}

	Color backgroundColor = c.getBackground();

	if(backgroundColor != null)
	g.setColor(backgroundColor);
	else
	g.setColor(Color.white);
	g.fillRect(x, y, SIZE-1, SIZE-1);
	g.setColor(Color.gray);
	g.drawRect(x, y, SIZE-1, SIZE-1);
	g.setColor(Color.black);
	g.drawLine(x + 2, y + HALF_SIZE, x + (SIZE - 3), y + HALF_SIZE);
	}

	public int getIconWidth() {
	Skin skin = getSkin(null);
	return (skin != null) ? skin.getWidth() : SIZE;
	}

	public int getIconHeight() {
	Skin skin = getSkin(null);
	return (skin != null) ? skin.getHeight() : SIZE;
	}
	}

	/**
	* The plus sign button icon
	* <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. A future release of Swing will provide support for
	* long term persistence.
	*/
	public static class CollapsedIcon extends ExpandedIcon {
	static public Icon createCollapsedIcon() {
	return new CollapsedIcon();
	}

	public void paintIcon(Component c, Graphics g, int x, int y) {
	Skin skin = getSkin(c);
	if (skin != null) {
	skin.paintSkin(g, x, y, State.CLOSED);
	} else {
	super.paintIcon(c, g, x, y);
	g.drawLine(x + HALF_SIZE, y + 2, x + HALF_SIZE, y + (SIZE - 3));
	}
	}
	}

	public class WindowsTreeCellRenderer extends DefaultTreeCellRenderer {

	/**
	* Configures the renderer based on the passed in components.
	* The value is set from messaging the tree with
	* <code>convertValueToText</code>, which ultimately invokes
	* <code>toString</code> on <code>value</code>.
	* The foreground color is set based on the selection and the icon
	* is set based on on leaf and expanded.
	*/
	public Component getTreeCellRendererComponent(JTree tree, Object value,
	boolean sel,
	boolean expanded,
	boolean leaf, int row,
	boolean hasFocus) {
	super.getTreeCellRendererComponent(tree, value, sel,
	expanded, leaf, row,
	hasFocus);
	// Windows displays the open icon when the tree item selected.
	if (!tree.isEnabled()) {
	setEnabled(false);
	if (leaf) {
	setDisabledIcon(getLeafIcon());
	} else if (sel) {
	setDisabledIcon(getOpenIcon());
	} else {
	setDisabledIcon(getClosedIcon());
	}
	}
	else {
	setEnabled(true);
	if (leaf) {
	setIcon(getLeafIcon());
	} else if (sel) {
	setIcon(getOpenIcon());
	} else {
	setIcon(getClosedIcon());
	}
	}
	return this;
	}

	}

	}

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