alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

What this is

This file is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Other links

The source code

/*
 * ErrorListCellRenderer.java - Used to list I/O and plugin load errors
 * :tabSize=8:indentSize=8:noTabs=false:
 * :folding=explicit:collapseFolds=1:
 *
 * Copyright (C) 2001 Slava Pestov
 *
 * This program 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
 * of the License, or any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

package org.gjt.sp.jedit.gui;

//{{{ Imports
import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
//}}}

class ErrorListCellRenderer extends JComponent implements ListCellRenderer
{
	//{{{ ErrorListCellRenderer constructor
	ErrorListCellRenderer()
	{
		plainFont = new JLabel().getFont();
		//UIManager.getFont("Label.font");
		boldFont = new Font(plainFont.getName(),Font.BOLD,plainFont.getSize());
		plainFM = getFontMetrics(plainFont);
		boldFM = getFontMetrics(boldFont);

		setBorder(new EmptyBorder(2,2,2,2));
	} //}}}

	//{{{ getListCellRendererComponent() method
	public Component getListCellRendererComponent(JList list, Object value,
		int index, boolean isSelected, boolean cellHasFocus)
	{
		ErrorListDialog.ErrorEntry entry = (ErrorListDialog.ErrorEntry)value;
		this.path = entry.path + ":";
		this.messages = entry.messages;
		return this;
	} //}}}

	//{{{ getPreferredSize() method
	public Dimension getPreferredSize()
	{
		int width = boldFM.stringWidth(path);
		int height = boldFM.getHeight();
		for(int i = 0; i < messages.length; i++)
		{
			width = Math.max(plainFM.stringWidth(messages[i]),width);
			height += plainFM.getHeight();
		}

		Insets insets = getBorder().getBorderInsets(this);
		width += insets.left + insets.right;
		height += insets.top + insets.bottom;

		return new Dimension(width,height);
	} //}}}

	//{{{ paintComponent() method
	public void paintComponent(Graphics g)
	{
		Insets insets = getBorder().getBorderInsets(this);
		g.setFont(boldFont);
		g.drawString(path,insets.left,insets.top + boldFM.getAscent());
		int y = insets.top + boldFM.getHeight() + 2;
		g.setFont(plainFont);
		for(int i = 0; i < messages.length; i++)
		{
			g.drawString(messages[i],insets.left,y + plainFM.getAscent());
			y += plainFM.getHeight();
		}
	} //}}}

	//{{{ Instance variables
	private String path;
	private String[] messages;
	private Font plainFont;
	private Font boldFont;
	private FontMetrics plainFM;
	private FontMetrics boldFM;
	//}}}
}
... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2024 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.