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/*
* $Id: PSTextElementBridge.java,v 1.2 2003/03/07 09:46:30 jeremias Exp $
* ============================================================================
* The Apache Software License, Version 1.1
* ============================================================================
*
* Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modifica-
* tion, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowledgment: "This product includes software
* developed by the Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself, if
* and wherever such third-party acknowledgments normally appear.
*
* 4. The names "FOP" and "Apache Software Foundation" must not be used to
* endorse or promote products derived from this software without prior
* written permission. For written permission, please contact
* apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache", nor may
* "Apache" appear in their name, without prior written permission of the
* Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
* DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ============================================================================
*
* This software consists of voluntary contributions made by many individuals
* on behalf of the Apache Software Foundation and was originally created by
* James Tauber <jtauber@jtauber.com>. For more information on the Apache
* Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.fop.render.ps;
//import org.apache.batik.gvt.TextNode;
import org.apache.batik.bridge.SVGTextElementBridge;
import org.apache.batik.bridge.BridgeContext;
//import org.apache.batik.bridge.TextUtilities;
import org.apache.batik.gvt.GraphicsNode;
import org.apache.fop.layout.FontInfo;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* Bridge class for the <text> element.
* This bridge will use the direct text painter if the text
* for the element is simple.
*
* @author <a href="mailto:fop-dev@xml.apache.org">Apache XML FOP Development Team</a>
* @version $Id: PSTextElementBridge.java,v 1.2 2003/03/07 09:46:30 jeremias Exp $
*/
public class PSTextElementBridge extends SVGTextElementBridge {
//private PSTextPainter textPainter;
/**
* Constructs a new bridge for the <text> element.
* @param fi the font infomration
*/
public PSTextElementBridge(FontInfo fi) {
//textPainter = new PSTextPainter(fi);
}
/**
* Create a text element bridge.
* This set the text painter on the node if the text is simple.
* @param ctx the bridge context
* @param e the svg element
* @return the text graphics node created by the super class
*/
public GraphicsNode createGraphicsNode(BridgeContext ctx, Element e) {
GraphicsNode node = super.createGraphicsNode(ctx, e);
/*
if (node != null && isSimple(ctx, e, node)) {
((TextNode)node).setTextPainter(getTextPainter());
}*/
return node;
}
/*
private PSTextPainter getTextPainter() {
return textPainter;
}
*/
/**
* Check if text element contains simple text.
* This checks the children of the text element to determine
* if the text is simple. The text is simple if it can be rendered
* with basic text drawing algorithms. This means there are no
* alternate characters, the font is known and there are no effects
* applied to the text.
*
* @param ctx the bridge context
* @param element the svg text element
* @param node the graphics node
* @return true if this text is simple of false if it cannot be
* easily rendered using normal drawString on the PDFGraphics2D
*/
private boolean isSimple(BridgeContext ctx, Element element, GraphicsNode node) {
/*
// Font size, in user space units.
float fs = TextUtilities.convertFontSize(element).floatValue();
// PDF cannot display fonts over 36pt
if (fs > 36) {
return false;
}
*/
for (Node n = element.getFirstChild();
n != null;
n = n.getNextSibling()) {
switch (n.getNodeType()) {
case Node.ELEMENT_NODE:
if (n.getLocalName().equals(SVG_TSPAN_TAG)
|| n.getLocalName().equals(SVG_ALT_GLYPH_TAG)) {
return false;
} else if (n.getLocalName().equals(SVG_TEXT_PATH_TAG)) {
return false;
} else if (n.getLocalName().equals(SVG_TREF_TAG)) {
return false;
}
break;
case Node.TEXT_NODE:
case Node.CDATA_SECTION_NODE:
}
}
/*if (CSSUtilities.convertFilter(element, node, ctx) != null) {
return false;
}*/
return true;
}
}
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