Example usage for org.apache.pdfbox.pdmodel.common PDRectangle transform

Introduction

In this page you can find the example usage for org.apache.pdfbox.pdmodel.common PDRectangle transform.

Prototype

public GeneralPath transform(Matrix matrix) 

Source Link

Document

Returns a path which represents this rectangle having been transformed by the given matrix.

Usage

From source file:com.yiyihealth.tools.test.DrawPrintTextLocations.java

License:Apache License

private void stripPage(int page) throws IOException {
    PDFRenderer pdfRenderer = new PDFRenderer(document);
    image = pdfRenderer.renderImage(page, SCALE);

    PDPage pdPage = document.getPage(page);
    PDRectangle cropBox = pdPage.getCropBox();

    // flip y-axis
    flipAT = new AffineTransform();
    flipAT.translate(0, pdPage.getBBox().getHeight());
    flipAT.scale(1, -1);/*from   www. ja  v  a2  s .c  o  m*/

    // page may be rotated
    rotateAT = new AffineTransform();
    int rotation = pdPage.getRotation();
    if (rotation != 0) {
        PDRectangle mediaBox = pdPage.getMediaBox();
        switch (rotation) {
        case 90:
            rotateAT.translate(mediaBox.getHeight(), 0);
            break;
        case 270:
            rotateAT.translate(0, mediaBox.getWidth());
            break;
        case 180:
            rotateAT.translate(mediaBox.getWidth(), mediaBox.getHeight());
            break;
        default:
            break;
        }
        rotateAT.rotate(Math.toRadians(rotation));
    }

    g2d = image.createGraphics();
    g2d.setStroke(new BasicStroke(0.1f));
    g2d.scale(SCALE, SCALE);

    setStartPage(page + 1);
    setEndPage(page + 1);

    Writer dummy = new OutputStreamWriter(new ByteArrayOutputStream());
    writeText(document, dummy);

    // beads in green
    g2d.setStroke(new BasicStroke(0.4f));
    List<PDThreadBead> pageArticles = pdPage.getThreadBeads();
    for (PDThreadBead bead : pageArticles) {
        PDRectangle r = bead.getRectangle();
        GeneralPath p = r
                .transform(Matrix.getTranslateInstance(-cropBox.getLowerLeftX(), cropBox.getLowerLeftY()));

        Shape s = flipAT.createTransformedShape(p);
        s = rotateAT.createTransformedShape(s);
        g2d.setColor(Color.green);
        g2d.draw(s);
    }

    g2d.dispose();

    String imageFilename = filename;
    int pt = imageFilename.lastIndexOf('.');
    imageFilename = imageFilename.substring(0, pt) + "-marked-" + (page + 1) + ".png";
    ImageIO.write(image, "png", new File(imageFilename));
}

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