/*
Copyright 2001,2003 The Apache Software Foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package org.apache.batik.gvt.renderer;
import java.awt.Graphics2D;
import java.awt.font.TextLayout;
import java.awt.geom.Point2D;
import java.text.AttributedCharacterIterator;
import org.apache.batik.gvt.TextNode;
/**
* Renders the attributed character iterator of a <tt>TextNode</tt>.
*
* @author <a href="mailto:vincent.hardy@eng.sun.com">Vincent Hardy</a>
* @version $Id: ConcreteTextPainter.java,v 1.7 2005/03/27 08:58:34 cam Exp $
*/
public abstract class ConcreteTextPainter extends BasicTextPainter {
/**
* Paints the specified attributed character iterator using the
* specified Graphics2D and context and font context.
* @param aci the AttributedCharacterIterator containing the text
* @param location the location to paint the text
* @param anchor the text anchor position
* @param g2d the Graphics2D to use
*/
public void paint(AttributedCharacterIterator aci, Point2D location,
TextNode.Anchor anchor, Graphics2D g2d) {
// Compute aci size to be able to draw it
TextLayout layout = new TextLayout(aci, fontRenderContext);
float advance = layout.getAdvance();
float tx = 0;
switch(anchor.getType()){
case TextNode.Anchor.ANCHOR_MIDDLE:
tx = -advance/2;
break;
case TextNode.Anchor.ANCHOR_END:
tx = -advance;
}
layout.draw(g2d, (float)(location.getX() + tx), (float)(location.getY()));
}
}