Examples of org.apache.batik.gvt.TextNode

org.apache.batik.gvt.TextNode
A graphics node that represents text. @author Thierry Kormann @version $Id: TextNode.java,v 1.25 2002/08/12 20:34:34 deweese Exp $

     * 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);


        if ( firstChar == -1 )

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                                       int charnum, 
                                       int nchars){
        float length = 0;


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


        int firstChar = getFirstCharacterIndexForElement(aci,element);


        if ( firstChar == -1 )
            return -1;

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     */
    protected void selectSubString(Element element, int charnum, int nchars){


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


        int firstChar = getFirstCharacterIndexForElement(aci,element);


        if ( firstChar == -1 )
            return;


        List list = getTextRuns(textNode);


        int lastChar = getLastCharacterIndexForElement(aci,element);


        CharacterInformation firstInfo = getCharacterInformation
            (list, firstChar,charnum,aci);
        CharacterInformation lastInfo = getCharacterInformation
            (list, firstChar,charnum+nchars-1,aci);
        
        Mark firstMark = textNode.getMarkerForChar(firstInfo.characterIndex,true);
        Mark lastMark;


        if ( lastInfo != null && lastInfo.characterIndex <= lastChar ){
            lastMark = textNode.getMarkerForChar(lastInfo.characterIndex,false);
        }
        else{
            lastMark = textNode.getMarkerForChar(lastChar,false);
        }


        textNode.setSelection(firstMark,lastMark);
        
    }

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    }


    protected int getCharNumAtPosition(Element e, float x, float y){
        
        TextNode textNode = (TextNode)node;


        //check if there is an hit
        List list = getTextRuns(textNode);


        //going backward in the list to catch the last character

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                                SelectionEvent.SELECTION_CHANGED,
                                newShape));
    }


    public void setSelection(Mark begin, Mark end) {
        TextNode node = begin.getTextNode();
        if (node != end.getTextNode())
            throw new Error("Markers not from same TextNode");
        node.setSelection(begin, end);
        Object selection = getSelection();
        Shape  shape     = node.getHighlightShape();
        dispatchSelectionEvent(new SelectionEvent
            (selection, SelectionEvent.SELECTION_DONE, shape));
        copyToClipboard(selection);
    }

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     * @param ctx the bridge context to use
     * @param e the element that describes the graphics node to build
     * @return a graphics node that represents the specified element
     */
    public GraphicsNode createGraphicsNode(BridgeContext ctx, Element e) {
        TextNode node = (TextNode)super.createGraphicsNode(ctx, e);
        if (node == null) {
            return null;
        }
        // specify the text painter to use
        if (ctx.getTextPainter() != null) {
            node.setTextPainter(ctx.getTextPainter());
        }
        // 'text-rendering' and 'color-rendering'
        RenderingHints hints = CSSUtilities.convertTextRendering(e, null);
        hints = CSSUtilities.convertColorRendering(e, hints);
        if (hints != null) {
            node.setRenderingHints(hints);
        }
        node.setLocation(getLocation(ctx, e));


        return node;
    }

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    /**
     * Creates the GraphicsNode depending on the GraphicsNodeBridge
     * implementation.
     */
    protected GraphicsNode instantiateGraphicsNode() {
        return new TextNode();
    }

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        AttributedString as = buildAttributedString(ctx, e);
        addGlyphPositionAttributes(as, e, ctx);
        if (ctx.isDynamic()) {
            layoutedText = new AttributedString(as.getIterator());
        }
        TextNode tn = (TextNode)node;
        tn.setAttributedCharacterIterator(as.getIterator());


        // now add the painting attributes, cannot do it before this because
        // some of the Paint objects need to know the bounds of the text
        // and this isn't know until the text node aci is set
        TextDecoration textDecoration = 
            getTextDecoration(e, tn, new TextDecoration(), ctx);
        addPaintAttributes(as, e, tn, textDecoration, ctx);
        tn.setAttributedCharacterIterator(as.getIterator());


        //
        // DO NOT CALL super, 'opacity' is handle during addPaintAttributes()
        //

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     */
    protected void computeLayoutedText() {
        AttributedString as = buildAttributedString(ctx, e);
        addGlyphPositionAttributes(as, e, ctx);
        layoutedText = new AttributedString(as.getIterator());
        TextNode tn = (TextNode)node;
        tn.setAttributedCharacterIterator(as.getIterator());
        TextDecoration textDecoration = 
            getTextDecoration(e, tn, new TextDecoration(), ctx);
        addPaintAttributes(as, e, tn, textDecoration, ctx);
        tn.setAttributedCharacterIterator(as.getIterator());
    }

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                if (!hasNewACI) {
                    hasNewACI = true;
                    AttributedString as = buildAttributedString(ctx, e);
                    addGlyphPositionAttributes(as, e, ctx);
                    layoutedText = new AttributedString(as.getIterator());
                    TextNode tn = (TextNode)node;
                    tn.setAttributedCharacterIterator(as.getIterator());
                    TextDecoration textDecoration = 
                        getTextDecoration(e, tn, new TextDecoration(), ctx);
                    addPaintAttributes(as, e, tn, textDecoration, ctx);
                    tn.setAttributedCharacterIterator(as.getIterator());
                }
                break;
            }
            }
        }

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Related Classes of org.apache.batik.gvt.TextNode

org.apache.batik.apps.svgbrowser.FindDialog

org.apache.batik.bridge.BridgeEventSupport$Listener

org.apache.batik.bridge.SVGTextElementBridge

org.apache.batik.gvt.renderer.StrokingTextPainter

org.apache.batik.gvt.text.AttributedCharacterSpanIterator

org.apache.batik.gvt.text.ConcreteTextSelector

org.apache.batik.gvt.text.Mark

org.apache.batik.gvt.text.TextHit

org.apache.batik.gvt.text.TextSpanLayout

org.apache.batik.gvt.TextSelectionTest

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