Examples of java.text.AttributedCharacterIterator

java.text.AttributedCharacterIterator
An AttributedCharacterIterator allows iteration through both text and related attribute information.
An attribute is a key/value pair, identified by the key. No two attributes on a given character can have the same key.
The values for an attribute are immutable, or must not be mutated by clients or storage. They are always passed by reference, and not cloned.
A run with respect to an attribute is a maximum text range for which:
- the attribute is undefined or null for the entire range, or
- the attribute value is defined and has the same non-null value for the entire range.
A run with respect to a set of attributes is a maximum text range for which this condition is met for each member attribute.
The returned indexes are limited to the range of the iterator.
The returned attribute information is limited to runs that contain the current character.
Attribute keys are instances of AttributedCharacterIterator.Attribute and its subclasses, such as java.awt.font.TextAttribute. @see AttributedCharacterIterator.Attribute @see java.awt.font.TextAttribute @see AttributedString @see Annotation @since 1.2

     * Implementation of {@link
     * org.w3c.dom.svg.SVGTextContentElement#getEndPositionOfChar(int charnum)}.
     */
    protected Point2D getEndPositionOfChar(Element element,int charnum ){


        AttributedCharacterIterator aci = ((TextNode)node).getAttributedCharacterIterator();
        TextNode textNode = (TextNode)node;


        int firstChar = getFirstCharacterIndexForElement(aci,element);


        if ( firstChar == -1 )

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     * Implementation of {@link
     * org.w3c.dom.svg.SVGTextContentElement#getRotationOfChar(int charnum)}.
     */
    protected float getRotationOfChar(Element element, int charnum){


        AttributedCharacterIterator aci = ((TextNode)node).getAttributedCharacterIterator();
        TextNode textNode = (TextNode)node;


        //first the first character for the element
        int firstChar = getFirstCharacterIndexForElement(aci,element);

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    protected float getSubStringLength(Element element,
                                       int charnum, 
                                       int nchars){
        float length = 0;


        AttributedCharacterIterator aci = ((TextNode)node).getAttributedCharacterIterator();
        TextNode textNode = (TextNode)node;


        int firstChar = getFirstCharacterIndexForElement(aci,element);


        if ( firstChar == -1 )

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     * TODO : report the selection to the selection
     *  manager in JSVGComponent.
     */
    protected void selectSubString(Element element, int charnum, int nchars){


        AttributedCharacterIterator aci = 
            ((TextNode)node).getAttributedCharacterIterator();
        TextNode textNode = (TextNode)node;


        int firstChar = getFirstCharacterIndexForElement(aci,element);

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        if ( hit == null ){
            return -1;
        }


        AttributedCharacterIterator aci = ((TextNode)node).getAttributedCharacterIterator();


        //found an hit, check if it belong to the element
        int first = getFirstCharacterIndexForElement( aci, e );
        int last  = getLastCharacterIndexForElement( aci, e );

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        List list = getTextRuns();
        // place coords in text node coordinate system
        for (int i = 0 ; i < list.size(); i++) {
            StrokingTextPainter.TextRun run =
                (StrokingTextPainter.TextRun)list.get(i);
            AttributedCharacterIterator aci = run.getACI();
            TextSpanLayout layout = run.getLayout();
            float x = (float)p.getX();
            float y = (float)p.getY();
            TextHit textHit = layout.hitTestChar(x, y);
            if (textHit != null && contains(p, layout.getBounds2D())) {

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                }
                if (list != null){
                    for (int i = 0 ; i < list.size(); i++) {
                        StrokingTextPainter.TextRun run =
                            (StrokingTextPainter.TextRun)list.get(i);
                        AttributedCharacterIterator aci = run.getACI();
                        TextSpanLayout layout = run.getLayout();
                        float x = (float)coords.getX();
                        float y = (float)coords.getY();
                        TextHit textHit = layout.hitTestChar(x, y);
                        if (textHit != null && layout.getBounds2D().contains(x, y)) {
                            Object delimiter = aci.getAttribute
                                (GVTAttributedCharacterIterator.TextAttribute.TEXT_COMPOUND_DELIMITER);
                            if (delimiter instanceof Element) {
                                return (Element)delimiter;
                            }
                        }

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     */
    public void paint(TextNode node, Graphics2D g2d) {
        String txt = node.getText();
        Point2D loc = node.getLocation();
        
        AttributedCharacterIterator aci =
          node.getAttributedCharacterIterator();
        // reset position to start of char iterator
        if (aci.getBeginIndex() == aci.getEndIndex()) {
            return;
        }
        char ch = aci.first();
        if (ch == AttributedCharacterIterator.DONE) {
            return;
        }
        TextNode.Anchor anchor;
        anchor = (TextNode.Anchor) aci.getAttribute(
                      GVTAttributedCharacterIterator.TextAttribute.ANCHOR_TYPE);


        List gvtFonts;
        gvtFonts = (List) aci.getAttribute(
            GVTAttributedCharacterIterator.TextAttribute.GVT_FONT_FAMILIES);


        TextPaintInfo tpi = (TextPaintInfo) aci.getAttribute(
            GVTAttributedCharacterIterator.TextAttribute.PAINT_INFO);
        
        if (tpi == null) {
            return;
        }        
        
        Paint forg = tpi.fillPaint;
        Paint strokePaint = tpi.strokePaint;
        Float size = (Float) aci.getAttribute(TextAttribute.SIZE);
        if (size == null) {
            return;
        }
        Stroke stroke = tpi.strokeStroke;
        /*
        Float xpos = (Float) aci.getAttribute(
                       GVTAttributedCharacterIterator.TextAttribute.X);
        Float ypos = (Float) aci.getAttribute(
                       GVTAttributedCharacterIterator.TextAttribute.Y);
        */


        Float posture = (Float) aci.getAttribute(TextAttribute.POSTURE);
        Float taWeight = (Float) aci.getAttribute(TextAttribute.WEIGHT);


        boolean useStrokePainter = false;


        if (forg instanceof Color) {
            Color col = (Color) forg;

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        // 'requiredFeatures', 'requiredExtensions' and 'systemLanguage'
        if (!SVGUtilities.matchUserAgent(element, ctx.getUserAgent())) {
            return;
        }
        AttributedCharacterIterator aci = as.getIterator();


        // calculate which chars in the string belong to this element
        int firstChar = -1;
        for (int i = 0; i < aci.getEndIndex(); i++) {
            aci.setIndex(i);
            Element delimeter = (Element)aci.getAttribute(
            GVTAttributedCharacterIterator.
            TextAttribute.TEXT_COMPOUND_DELIMITER);
            if (delimeter == element || nodeAncestorOf(element, delimeter)) {
                firstChar = i;
                break;
            }
        }
        // No match so no chars to annotate.
        if (firstChar == -1) return;


        int lastChar = aci.getEndIndex()-1;
        for (int i = aci.getEndIndex()-1; i >= 0; i--) {
            aci.setIndex(i);
            Element delimeter = (Element)aci.getAttribute(
                GVTAttributedCharacterIterator.
                TextAttribute.TEXT_COMPOUND_DELIMITER);
            if (delimeter == element || nodeAncestorOf(element, delimeter)) {
                lastChar = i;
                break;

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        // 'requiredFeatures', 'requiredExtensions' and 'systemLanguage'
        if (!SVGUtilities.matchUserAgent(element, ctx.getUserAgent())) {
            return;
        }
        AttributedCharacterIterator aci = as.getIterator();


        // calculate which chars in the string belong to this element
        int firstChar = -1;
        for (int i = 0; i < aci.getEndIndex(); i++) {
            aci.setIndex(i);
            Element delimeter = (Element)aci.getAttribute(
            GVTAttributedCharacterIterator.
            TextAttribute.TEXT_COMPOUND_DELIMITER);
            if (delimeter == element || nodeAncestorOf(element, delimeter)) {
                firstChar = i;
                break;
            }
        }
        if (firstChar == -1)
            return; // Element not part of aci (no chars in elem usually)


        int lastChar = aci.getEndIndex()-1;
        for (int i = aci.getEndIndex()-1; i >= 0; i--) {
            aci.setIndex(i);
            Element delimeter = (Element)aci.getAttribute(
                GVTAttributedCharacterIterator.
                TextAttribute.TEXT_COMPOUND_DELIMITER);
            if (delimeter == element || nodeAncestorOf(element, delimeter)) {
                lastChar = i;
                break;

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