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/*
* Copyright (C) 2001-2013 Michael Fuchs
*
* This file is part of herold.
*
* herold 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 3 of the License, or
* (at your option) any later version.
*
* herold 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 herold. If not, see <http://www.gnu.org/licenses/>.
*/
package org.dbdoclet.jive.widget;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import javax.swing.JLabel;
import org.dbdoclet.jive.filter.BlurFilter;
public class RichLabel extends JLabel {
private static final double FACTOR = 1.3;
private static final long serialVersionUID = 1L;
private int width;
private int height;
public RichLabel(String text) {
super(text);
}
@Override
public Dimension getPreferredSize() {
if (width > 0 && height > 0) {
return new Dimension(width, height);
}
Dimension dim = super.getPreferredSize();
dim = new Dimension((int) (dim.width * FACTOR), (int) (dim.height * FACTOR));
return dim;
}
@Override
protected void paintComponent(Graphics g) {
Font font = getFont();
int offset = font.getSize() / 15;
FontMetrics fontMetrics = g.getFontMetrics();
width = (int) (fontMetrics.stringWidth(getText()) * FACTOR);
height = (int) (fontMetrics.getHeight() * FACTOR);
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2d = (Graphics2D) image.getGraphics();
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setFont(font);
fontMetrics = g2d.getFontMetrics();
int length = fontMetrics.stringWidth(getText());
int xpos = (width / 2) - (length / 2);
xpos = 0;
int ypos = (height / 2)
+ ((fontMetrics.getAscent() - fontMetrics.getDescent()) / 2);
g2d.setPaint(Color.GRAY);
g2d.drawString(getText(), xpos + offset, ypos + offset);
BufferedImage blurImage = BlurFilter.gaussianBlur(image, 7);
g2d = (Graphics2D) blurImage.getGraphics();
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setFont(getFont());
g2d.setPaint(getForeground());
g2d.drawString(getText(), 0, ypos);
g.drawImage(blurImage, 0, 0, null);
}
}
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