/******************************************************************************
*	Copyright 2002 BITart Gerd Knops. All rights reserved.
*
*	Project	: CodeBrowser
*	File	: CBListCellRenderer.java
*	Author	: Gerd Knops gerti@BITart.com
*
*******************************************************************************
*                                    :mode=java:folding=indent:collapseFolds=1:
*	History:
*	020510 Creation of file
*
*******************************************************************************
*
*	Description:
*	CBListCellRenderer is a ListCellRenderer displaying a buffers name as
*	follows:
*
*		- The file name is displayed using the color the VFS assigns to it
*		- As much as possible from the END of the buffers path is displayed
*		  in dark gray if the buffer is saved, and dark red if the buffer
*		  has unsaved changes
*		- A bold font is used if the buffer is selected 
*
*	$Id: CBListCellRenderer.java 1655 2005-10-21 17:12:23Z ezust $
*
*******************************************************************************
*
* DISCLAIMER
*
* BITart and Gerd Knops make no warranties, representations or commitments
* with regard to the contents of this software. BITart and Gerd Knops
* specifically disclaim any and all warranties, wether express, implied or
* statutory, including, but not limited to, any warranty of merchantability
* or fitness for a particular purpose, and non-infringement. Under no
* circumstances will BITart or Gerd Knops be liable for loss of data,
* special, incidental or consequential damages out of the use of this
* software, even if those damages were forseeable, or BITart or Gerd Knops
* was informed of their potential.
*
******************************************************************************/
package com.bitart.codebrowser;
/******************************************************************************
* Imports
******************************************************************************/

	import java.util.*;
	import java.awt.*;
	import java.awt.font.*;
	import java.awt.geom.*;
	import javax.swing.*;
	import org.gjt.sp.jedit.*;
	import org.gjt.sp.jedit.io.*;
	
/*****************************************************************************/
public class CBListCellRenderer extends JPanel implements ListCellRenderer
{
/******************************************************************************
* Vars
******************************************************************************/

	JList	list;
	Buffer	buf;
	boolean	selected;
	
	int		fontHeight=20;
		
/******************************************************************************
* Implementation
******************************************************************************/
public Dimension getMinimumSize()
	{
		return new Dimension(10,fontHeight);
	}
	
public Dimension getPreferredSize()
	{
		return new Dimension(10,fontHeight);
	}
	
public void paintComponent(Graphics g)
	{
		int w=getWidth();
		//Font f=list.getFont();
		Font f=UIManager.getFont("Tree.font");
		if(selected) f=f.deriveFont(Font.BOLD);
		Font fi=f.deriveFont((selected)?Font.BOLD|Font.ITALIC:Font.ITALIC,f.getSize()-1);
		FontRenderContext frc=new FontRenderContext(null,true,false);
		
		LineMetrics lm=f.getLineMetrics("AZfj",frc);
		int baseline=2+(int)Math.ceil(lm.getAscent());
		
		Rectangle2D r2d=f.getStringBounds("   ",frc);
		int spacesWidth=(int)Math.ceil(r2d.getWidth());
		r2d=fi.getStringBounds("...",frc);
		int elipsesWidth=(int)Math.ceil(r2d.getWidth());
				
		String sep=java.io.File.separator;
		String name=buf.getName();
		String path=buf.getPath();
		
		int idx=path.lastIndexOf(sep);
		if(idx>0) path=path.substring(0,idx);
		
		r2d=f.getStringBounds(name,frc);
		int nl=(int)Math.ceil(r2d.getWidth());
		r2d=fi.getStringBounds(path,frc);
		int pl=(int)Math.ceil(r2d.getWidth());
		if(nl+pl+spacesWidth+elipsesWidth>w-10)
		{
			while(nl+pl+spacesWidth+elipsesWidth>w-10)
			{
				idx=path.indexOf(sep,1);
				if(idx<=0) break;
				path=path.substring(idx);
				r2d=fi.getStringBounds(path,frc);
				pl=(int)Math.ceil(r2d.getWidth());
			}
			path="..."+path;
			pl+=elipsesWidth;
		}
		if(nl+pl+spacesWidth>w-10)
		{
			path="...";
			pl=elipsesWidth;
			if(nl+pl+spacesWidth>w-10)
			{
				path="";
				pl=0;
			}
		}
		
		//g.setColor(Color.black);
		g.setColor(VFS.getDefaultColorFor(name));
		
		g.setFont(f);
		g.drawString(name,5,baseline);
		if(pl>0)
		{
			if(buf.isDirty())
			{
				g.setColor(new Color(0x800000));
			}
			else
			{
				g.setColor(Color.darkGray);
			}
			g.setFont(fi);
			g.drawString(path,w-pl-5,baseline);
		}
	}
	
/******************************************************************************
* ListCellRenderer interface
******************************************************************************/
public Component getListCellRendererComponent(
		JList list,
		Object value,
		int index,
		boolean selected,
		boolean hasFocus
	)
	{
		this.list=list;
		buf=(Buffer)value;
		this.selected=selected;
		
		Rectangle2D r=list.getFont().getMaxCharBounds(new FontRenderContext(null,true,false));
		fontHeight=4+(int)Math.ceil(r.getHeight());
		
		return this;
	}
}
/*************************************************************************EOF*/