Example usage for org.apache.pdfbox.contentstream.operator.color SetNonStrokingColorN SetNonStrokingColorN

Introduction

In this page you can find the example usage for org.apache.pdfbox.contentstream.operator.color SetNonStrokingColorN SetNonStrokingColorN.

Prototype

SetNonStrokingColorN

Source Link

Usage

From source file:org.fit.pdfdom.PDFBoxTree.java

License:Open Source License

public PDFBoxTree() throws IOException {
    super();/* w w  w. j  ava2 s . com*/
    super.setSortByPosition(true);
    super.setSuppressDuplicateOverlappingText(true);

    //add operators for tracking the graphic state
    addOperator(new SetStrokingColorSpace());
    addOperator(new SetNonStrokingColorSpace());
    addOperator(new SetLineDashPattern());
    addOperator(new SetStrokingDeviceGrayColor());
    addOperator(new SetNonStrokingDeviceGrayColor());
    addOperator(new SetFlatness());
    addOperator(new SetLineJoinStyle());
    addOperator(new SetLineCapStyle());
    addOperator(new SetStrokingDeviceCMYKColor());
    addOperator(new SetNonStrokingDeviceCMYKColor());
    addOperator(new SetLineMiterLimit());
    addOperator(new SetStrokingDeviceRGBColor());
    addOperator(new SetNonStrokingDeviceRGBColor());
    addOperator(new SetRenderingIntent());
    addOperator(new SetStrokingColor());
    addOperator(new SetNonStrokingColor());
    addOperator(new SetStrokingColorN());
    addOperator(new SetNonStrokingColorN());
    addOperator(new SetFontAndSize());
    addOperator(new SetLineWidth());

    init();
}

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From source file:org.geoserver.wms.map.PDFGetMapTest.java

License:Open Source License

/**
 * Returns the last tiling pattern found during a render of the PDF document. Can be used to extract
 * one tiling pattern that gets actually used to render shapes (meant to be used against a document
 * that only has a single tiling pattern)
 * //  w ww .j  a  v  a2  s.  c  om
 * @param pdfDocument
 * @return
 * @throws InvalidPasswordException
 * @throws IOException
 */
PDTilingPattern getTilingPattern(byte[] pdfDocument) throws InvalidPasswordException, IOException {
    // load the document using PDFBOX (iText is no good for parsing tiling patterns, mostly works
    // well for text and image extraction, spent a few hours trying to use it with no results)
    PDDocument doc = PDDocument.load(pdfDocument);
    PDPage page = doc.getPage(0);

    // use a graphics stream engine, it's the only thing I could find that parses the PDF
    // deep enough to allow catching the tiling pattern in parsed form 
    AtomicReference<PDTilingPattern> pattern = new AtomicReference<>();
    PDFStreamEngine engine = new PDFGraphicsStreamEngine(page) {

        @Override
        public void strokePath() throws IOException {
        }

        @Override
        public void shadingFill(COSName shadingName) throws IOException {
        }

        @Override
        public void moveTo(float x, float y) throws IOException {
        }

        @Override
        public void lineTo(float x, float y) throws IOException {
        }

        @Override
        public Point2D getCurrentPoint() throws IOException {
            return null;
        }

        @Override
        public void fillPath(int windingRule) throws IOException {
        }

        @Override
        public void fillAndStrokePath(int windingRule) throws IOException {
        }

        @Override
        public void endPath() throws IOException {
        }

        @Override
        public void drawImage(PDImage pdImage) throws IOException {
        }

        @Override
        public void curveTo(float x1, float y1, float x2, float y2, float x3, float y3) throws IOException {
        }

        @Override
        public void closePath() throws IOException {
        }

        @Override
        public void clip(int windingRule) throws IOException {
        }

        @Override
        public void appendRectangle(Point2D p0, Point2D p1, Point2D p2, Point2D p3) throws IOException {
        }
    };

    // setup the tiling pattern trap
    engine.addOperator(new SetNonStrokingColorN() {

        @Override
        public void process(Operator operator, List<COSBase> arguments) throws IOException {
            super.process(operator, arguments);

            PDColor color = context.getGraphicsState().getNonStrokingColor();
            if (context.getGraphicsState().getNonStrokingColorSpace() instanceof PDPattern) {
                PDPattern colorSpace = (PDPattern) context.getGraphicsState().getNonStrokingColorSpace();
                PDAbstractPattern ap = colorSpace.getPattern(color);
                if (ap instanceof PDTilingPattern) {
                    pattern.set((PDTilingPattern) ap);
                }
            }
        }
    });
    // run it
    engine.processPage(page);

    return pattern.get();
}

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