/* DefaultTreeCellRenderer.java 
   Copyright (C) 2002, 2004 Free Software Foundation, Inc.
 
This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

GNU Classpath 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 for more details.

You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING.  If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.

As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module.  An independent module is a module which is not derived from
or based on this library.  If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so.  If you do not wish to do so, delete this
exception statement from your version. */

package javax.swing.tree;

import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Rectangle;

import javax.swing.Icon;
import javax.swing.JLabel;
import javax.swing.JTree;
import javax.swing.UIDefaults;
import javax.swing.UIManager;
import javax.swing.plaf.UIResource;

/**
 * DefaultTreeCellRenderer
 * 
 * @author Andrew Selkirk
 */
public class DefaultTreeCellRenderer
		extends JLabel
		implements TreeCellRenderer
{
	// -------------------------------------------------------------
	// Variables --------------------------------------------------
	// -------------------------------------------------------------

	/**
	 * selected
	 */
	protected boolean selected;

	/**
	 * hasFocus
	 */
	protected boolean hasFocus;

	/**
	 * drawsFocusBorderAroundIcon
	 */
	private boolean drawsFocusBorderAroundIcon;

	/**
	 * closedIcon
	 */
	protected transient Icon closedIcon;

	/**
	 * leafIcon
	 */
	protected transient Icon leafIcon;

	/**
	 * openIcon
	 */
	protected transient Icon openIcon;

	/**
	 * textSelectionColor
	 */
	protected Color textSelectionColor;

	/**
	 * textNonSelectionColor
	 */
	protected Color textNonSelectionColor;

	/**
	 * backgroundSelectionColor
	 */
	protected Color backgroundSelectionColor;

	/**
	 * backgroundNonSelectionColor
	 */
	protected Color backgroundNonSelectionColor;

	/**
	 * borderSelectionColor
	 */
	protected Color borderSelectionColor;
	

	// -------------------------------------------------------------
	// Initialization ---------------------------------------------
	// -------------------------------------------------------------

	/**
	 * Constructor DefaultTreeCellRenderer
	 */
	public DefaultTreeCellRenderer()
	{
		UIDefaults defaults = UIManager.getLookAndFeelDefaults();

		setLeafIcon(getDefaultLeafIcon());
		setOpenIcon(getDefaultOpenIcon());
		setClosedIcon(getDefaultClosedIcon());

		setTextNonSelectionColor(defaults.getColor("Tree.textForeground"));
		setTextSelectionColor(defaults.getColor("Tree.selectionForeground"));
		setBackgroundNonSelectionColor(defaults
				.getColor("Tree.nonSelectionBackground"));
		setBackgroundSelectionColor(defaults
				.getColor("Tree.selectionBackground"));
		setBorderSelectionColor(defaults
				.getColor("Tree.selectionBorderColor"));
	}

	// -------------------------------------------------------------
	// Methods ----------------------------------------------------
	// -------------------------------------------------------------

	/**
	 * getDefaultOpenIcon
	 * 
	 * @returns Icon
	 */
	public Icon getDefaultOpenIcon()
	{
		return UIManager.getLookAndFeelDefaults().getIcon("Tree.openIcon");
	}

	/**
	 * getDefaultClosedIcon
	 * 
	 * @returns Icon
	 */
	public Icon getDefaultClosedIcon()
	{
		return UIManager.getLookAndFeelDefaults().getIcon("Tree.closedIcon");
	}

	/**
	 * getDefaultLeafIcon
	 * 
	 * @returns Icon
	 */
	public Icon getDefaultLeafIcon()
	{
		return UIManager.getLookAndFeelDefaults().getIcon("Tree.leafIcon");
	}

	/**
	 * setOpenIcon
	 * 
	 * @param value0 TODO
	 */
	public void setOpenIcon(Icon i)
	{
		openIcon = i;
	}

	/**
	 * getOpenIcon
	 * 
	 * @returns Icon
	 */
	public Icon getOpenIcon()
	{
		return openIcon;
	}

	/**
	 * setClosedIcon
	 * 
	 * @param value0 TODO
	 */
	public void setClosedIcon(Icon i)
	{
		closedIcon = i;
	}

	/**
	 * getClosedIcon
	 * 
	 * @returns Icon
	 */
	public Icon getClosedIcon()
	{
		return closedIcon;
	}

	/**
	 * setLeafIcon
	 * 
	 * @param value0 TODO
	 */
	public void setLeafIcon(Icon i)
	{
		leafIcon = i;
	}

	/**
	 * getLeafIcon
	 * 
	 * @returns Icon
	 */
	public Icon getLeafIcon()
	{
		return leafIcon;
	}

	/**
	 * setTextSelectionColor
	 * 
	 * @param value0 TODO
	 */
	public void setTextSelectionColor(Color c)
	{
		textSelectionColor = c;
	}

	/**
	 * getTextSelectionColor
	 * 
	 * @returns Color
	 */
	public Color getTextSelectionColor()
	{
		return textSelectionColor;
	}

	/**
	 * setTextNonSelectionColor
	 * 
	 * @param value0 TODO
	 */
	public void setTextNonSelectionColor(Color c)
	{
		textNonSelectionColor = c;
	}

	/**
	 * getTextNonSelectionColor
	 * 
	 * @returns Color
	 */
	public Color getTextNonSelectionColor()
	{
		return textNonSelectionColor;
	}

	/**
	 * setBackgroundSelectionColor
	 * 
	 * @param value0 TODO
	 */
	public void setBackgroundSelectionColor(Color c)
	{
		backgroundSelectionColor = c;
	}

	/**
	 * getBackgroundSelectionColor
	 * 
	 * @returns Color
	 */
	public Color getBackgroundSelectionColor()
	{
		return backgroundSelectionColor;
	}

	/**
	 * setBackgroundNonSelectionColor
	 * 
	 * @param value0 TODO
	 */
	public void setBackgroundNonSelectionColor(Color c)
	{
		backgroundNonSelectionColor = c;
	}

	/**
	 * getBackgroundNonSelectionColor
	 * 
	 * @returns Color
	 */
	public Color getBackgroundNonSelectionColor()
	{
		return backgroundNonSelectionColor;
	}

	/**
	 * setBorderSelectionColor
	 * 
	 * @param value0 TODO
	 */
	public void setBorderSelectionColor(Color c)
	{
		borderSelectionColor = c;
	}

	/**
	 * getBorderSelectionColor
	 * 
	 * @returns Color
	 */
	public Color getBorderSelectionColor()
	{
		return borderSelectionColor;
	}

	/**
	 * setFont
	 * 
	 * @param value0 TODO
	 */
	public void setFont(Font f)
	{
		if (f != null && f instanceof UIResource)
			f = null;
		super.setFont(f);
	}

	/**
	 * setBackground
	 * 
	 * @param value0 TODO
	 */
	public void setBackground(Color c)
	{
		if (c != null && c instanceof UIResource)
			c = null;
		super.setBackground(c);
	}

	/**
	 * getTreeCellRendererComponent
	 * 
	 * @param value0 TODO
	 * @param value1 TODO
	 * @param value2 TODO
	 * @param value3 TODO
	 * @param value4 TODO
	 * @param value5 TODO
	 * @param value6 TODO
	 * @returns Component
	 */
	public Component getTreeCellRendererComponent(JTree tree, Object val,
			boolean selected, boolean expanded, boolean leaf, int row,
			boolean hasFocus)
	{
		if (val instanceof Icon)
      	setIcon((Icon) val);
      else
      {
         setText(val.toString());
         setIcon(null);
         this.selected = selected;
         this.hasFocus = hasFocus;
         setHorizontalAlignment(LEFT);
         setOpaque(true);
         setVerticalAlignment(TOP);
         setEnabled(true);
         super.setFont(UIManager.getLookAndFeelDefaults().getFont("Tree.font"));
      }

		if (selected) 
		{
			super.setBackground(getBackgroundSelectionColor());
			setForeground(getTextSelectionColor());
		}
		else
		{
			super.setBackground(getBackgroundNonSelectionColor());
			setForeground(getTextNonSelectionColor());
		}		
		
		return this;
	}
	
	/**
	 * getFont
	 * 
	 * @return the current Font
	 */
	public Font getFont()
	{
		return super.getFont();
	}

	/**
	 * paint
	 * 
	 * @param value0 TODO
	 */
	public void paint(Graphics g)
	{
		super.paint(g);
	}

	/**
	 * getPreferredSize
	 * 
	 * @returns Dimension
	 */
	public Dimension getPreferredSize()
	{
		return null; // TODO
	} // getPreferredSize()

	/**
	 * validate
	 */
	public void validate()
	{
		// Overridden for performance reasons.
	} // validate()

	/**
	 * revalidate
	 */
	public void revalidate()
	{
		// Overridden for performance reasons.
	} // revalidate()

	/**
	 * repaint
	 * 
	 * @param value0 TODO
	 * @param value1 TODO
	 * @param value2 TODO
	 * @param value3 TODO
	 * @param value4 TODO
	 */
	public void repaint(long value0, int value1, int value2, int value3,
			int value4)
	{
		// Overridden for performance reasons.
	} // repaint()

	/**
	 * repaint
	 * 
	 * @param value0 TODO
	 */
	public void repaint(Rectangle value0)
	{
		//  Overridden for performance reasons.
	} // repaint()

	/**
	 * firePropertyChange
	 * 
	 * @param value0 TODO
	 * @param value1 TODO
	 * @param value2 TODO
	 */
	protected void firePropertyChange(String value0, Object value1,
			Object value2)
	{
		//  Overridden for performance reasons.
	} // firePropertyChange()

	/**
	 * firePropertyChange
	 * 
	 * @param value0 TODO
	 * @param value1 TODO
	 * @param value2 TODO
	 */
	public void firePropertyChange(String value0, byte value1, byte value2)
	{
		//  Overridden for performance reasons.
	} // firePropertyChange()

	/**
	 * firePropertyChange
	 * 
	 * @param value0 TODO
	 * @param value1 TODO
	 * @param value2 TODO
	 */
	public void firePropertyChange(String value0, char value1, char value2)
	{
		// Overridden for performance reasons.
	} // firePropertyChange()

	/**
	 * firePropertyChange
	 * 
	 * @param value0 TODO
	 * @param value1 TODO
	 * @param value2 TODO
	 */
	public void firePropertyChange(String value0, short value1, short value2)
	{
		//  Overridden for performance reasons.
	} // firePropertyChange()

	/**
	 * firePropertyChange
	 * 
	 * @param value0 TODO
	 * @param value1 TODO
	 * @param value2 TODO
	 */
	public void firePropertyChange(String value0, int value1, int value2)
	{
		// Overridden for performance reasons.
	} // firePropertyChange()

	/**
	 * firePropertyChange
	 * 
	 * @param value0 TODO
	 * @param value1 TODO
	 * @param value2 TODO
	 */
	public void firePropertyChange(String value0, long value1, long value2)
	{
		//  Overridden for performance reasons.
	} // firePropertyChange()

	/**
	 * firePropertyChange
	 * 
	 * @param value0 TODO
	 * @param value1 TODO
	 * @param value2 TODO
	 */
	public void firePropertyChange(String value0, float value1, float value2)
	{
		//  Overridden for performance reasons.
	} // firePropertyChange()

	/**
	 * firePropertyChange
	 * 
	 * @param value0 TODO
	 * @param value1 TODO
	 * @param value2 TODO
	 */
	public void firePropertyChange(String value0, double value1, double value2)
	{
		//  Overridden for performance reasons.
	} // firePropertyChange()

	/**
	 * firePropertyChange
	 * 
	 * @param value0 TODO
	 * @param value1 TODO
	 * @param value2 TODO
	 */
	public void firePropertyChange(String value0, boolean v1, boolean v2)
	{
		//  Overridden for performance reasons.
	} // firePropertyChange()

} // DefaultTreeCellRenderer
