/**************************************************************************
OmegaT - Computer Assisted Translation (CAT) tool
with fuzzy matching, translation memory, keyword search,
glossaries, and translation leveraging into updated projects.
Copyright (C) 2012 Martin Fleurke
Home page: http://www.omegat.org/
Support center: http://groups.yahoo.com/group/OmegaT/
This file is part of OmegaT.
OmegaT 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.
OmegaT 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, see <http://www.gnu.org/licenses/>.
**************************************************************************/
package org.omegat.gui.editor.mark;
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Composite;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import javax.swing.text.JTextComponent;
import org.omegat.gui.editor.UnderlineFactory.Underliner;
/**
* Paints transparent background color
*
* @author Martin Fleurke
*/
public class TransparentHighlightPainter extends Underliner {
private Color color;
private AlphaComposite alphaComposite;
/**
*
* @param color the color to paint the background in
* @param alpha the transparency level (1.0 = not transparent, 0.0 = full transparency)
*/
public TransparentHighlightPainter (Color color, float alpha) {
super();
this.color = color;
this.alphaComposite = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha);
}
protected void paint(Graphics g, Rectangle rect, JTextComponent c) {
Graphics2D g2d = (Graphics2D)g;
Composite originalComposite = g2d.getComposite();
g2d.setComposite(alphaComposite);
g2d.setPaint(color);
g2d.fill(rect);
g2d.setComposite(originalComposite);
}
}