Hi,
I found strange GVT TextNode AttributedCharacterIterator, the question is this intentional or bug?
Hi Tonny,
This is intentional. The X & Y attributes are associated with just the first character. Characters without X/Y attrs are placed according to normal text layout, after the characters with X/Y attrs. This is to support X/Y with a list of locations.
suppose I have svg doc like this
<text x="208.0" y="300">text</text>
iterating the aci from GVT text node give the following output
t index: 0 runStart: 0 runLimit: 1 e index: 1 runStart: 1 runLimit: 4
x index: 2 runStart: 1 runLimit: 4
t index: 3 runStart: 1 runLimit: 4
does the first line should be runStart=1 runLimit=4?
Here I attached the sample program to reproduce this.
What I am trying to do is to get the TEXT_COMPOUND_DELIMITER, to determine the SVG text element part (Text,TSpan,TRef,etc)
Regards Tonny Kohar
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/* * BugGVTTextNodeACI.java * * Created on March 4, 2004, 11:02 AM */
package kiyut.bug;
import java.text.*; import javax.swing.*;
import org.apache.batik.dom.svg.*; import org.apache.batik.bridge.*; import org.apache.batik.gvt.*; import org.apache.batik.util.SVGConstants;
import org.w3c.dom.*; import org.w3c.dom.css.*; import org.w3c.dom.svg.*;
/**
*
* @author Tonny Kohar
*/
public class BugGVTTextNodeACI {
public static void main(String[] args) {
BugGVTTextNodeACI bug = new BugGVTTextNodeACI();
bug.runTest();
}
/** Creates a new instance of BugGVTTextNodeACI */
public BugGVTTextNodeACI() {
}
private SVGDocument createSVGDocument() {
String svgNS = SVGConstants.SVG_NAMESPACE_URI;
DOMImplementation impl = SVGDOMImplementation.getDOMImplementation();
SVGDocument doc = (SVGDocument)impl.createDocument(svgNS, "svg", null);
// get the root element (the svg element)
Element svgRoot = doc.getRootElement();
// set the width and height attribute on the root svg element
svgRoot.setAttributeNS(null, "width", "400");
svgRoot.setAttributeNS(null, "height", "400");
// create the text element
SVGElement element = (SVGElement)doc.createElementNS(svgNS, "text");
element.setId("bugACI");
element.setAttributeNS(null, SVGConstants.SVG_X_ATTRIBUTE, Float.toString(100));
element.setAttributeNS(null, SVGConstants.SVG_Y_ATTRIBUTE, Float.toString(100));
element.setAttributeNS(null, SVGConstants.SVG_FONT_FAMILY_ATTRIBUTE, "Verdana");
element.setAttributeNS(null, SVGConstants.SVG_FONT_SIZE_ATTRIBUTE, "24");
element.setAttributeNS(null, SVGConstants.SVG_FILL_ATTRIBUTE, "blue");
Text text = doc.createTextNode("text");
element.appendChild(text);
svgRoot.appendChild(element);
return doc;
}
private void runTest() {
SVGDocument doc = createSVGDocument();
// load gvt
UserAgentAdapter userAgent = new UserAgentAdapter();
DocumentLoader documentLoader = new DocumentLoader(userAgent);
BridgeContext bridgeContext = new BridgeContext(userAgent, documentLoader);
bridgeContext.setDynamic(true);
GVTBuilder gvtBuilder = new DynamicGVTBuilder();
GraphicsNode root = gvtBuilder.build(bridgeContext, doc);
Element elt = doc.getElementById("bugACI");
System.out.println(elt);
TextNode textNode = (TextNode)bridgeContext.getGraphicsNode(elt);
AttributedCharacterIterator aci = textNode.getAttributedCharacterIterator();
int runStart;
int runLimit;
char c;
for (int i=0; i<aci.getEndIndex(); i++) {
c = aci.setIndex(i);
runStart = aci.getRunStart();
runLimit = aci.getRunLimit();
System.out.println(c + " index: " + i + " runStart: " + runStart + " runLimit: " + runLimit);
}
}
}
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