Examples with PdfContentByte com.itextpdf.text.pdf.PdfContentByte used on opensource projects

Example 26 with PdfContentByte

use of com.itextpdf.text.pdf.PdfContentByte in project trainning by fernandotomasio.

the class ReportUtil method setBackground.

public byte[] setBackground(byte[] documentSource, String url) {
    PdfReader reader = null;
    PdfStamper stamp = null;
    ByteArrayOutputStream byteArray = null;
    try {
        byteArray = new ByteArrayOutputStream();
        reader = new PdfReader(documentSource);
        int n = reader.getNumberOfPages();
        // Create a stamper that will copy the document to a new file
        stamp = new PdfStamper(reader, byteArray);
        int i = 1;
        PdfContentByte under;
        PdfContentByte over;
        Image image = Image.getInstance(url);
        image.scaleToFit(PageSize.A4.getWidth(), PageSize.A4.getHeight());
        image.setAbsolutePosition(0, 0);
        // image.setAbsolutePosition(200, 400);
        while (i <= n) {
            // Watermark under the existing page
            under = stamp.getUnderContent(i);
            under.addImage(image);
            // Text over the existing page
            // over = stamp.getOverContent(i);
            // over.beginText();
            // over.setFontAndSize(bf, 18);
            // over.showText("page " + i);
            // over.endText();
            i++;
        }
        stamp.close();
    } catch (DocumentException ex) {
        Logger.getLogger(ReportUtil.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException e) {
        e.printStackTrace();
    }
    return byteArray.toByteArray();
}

Example 27 with PdfContentByte

use of com.itextpdf.text.pdf.PdfContentByte in project TranskribusCore by Transkribus.

the class TrpPdfDocument method addTextAndImage.

private void addTextAndImage(PcGtsType pc, int cutoffLeft, int cutoffTop, Image img, boolean imageOnly, ExportCache cache) throws DocumentException, IOException {
    lineAndColorList.clear();
    PdfContentByte cb = writer.getDirectContentUnder();
    cb.setColorFill(BaseColor.BLACK);
    cb.setColorStroke(BaseColor.BLACK);
    // BaseFont bf = BaseFont.createFont(BaseFont.TIMES_ROMAN, "UTF-8", BaseFont.NOT_EMBEDDED);
    if (!imageOnly) {
        cb.beginLayer(ocrLayer);
        cb.setFontAndSize(bfArial, 32);
        List<TrpRegionType> regions = pc.getPage().getTextRegionOrImageRegionOrLineDrawingRegion();
        /*
			 * use reading order comparator for sorting since at this time reading order is more trustable
			 * other sorting is not transitive and seldomly produces "Comparison violates its general contract" exception
			 */
        Collections.sort(regions, new TrpElementReadingOrderComparator<RegionType>(true));
        for (RegionType r : regions) {
            // TODO add paths for tables etc.
            if (r instanceof TrpTableRegionType) {
                exportTable(r, cb, cutoffLeft, cutoffTop, false, cache);
            } else if (r instanceof TextRegionType) {
                TextRegionType tr = (TextRegionType) r;
                // PageXmlUtils.buildPolygon(tr.getCoords().getPoints()).getBounds().getMinX();
                addTextFromTextRegion(tr, cb, cutoffLeft, cutoffTop, bfArial, cache);
            }
        }
        // scale after calculating lineMeanHeightForAllRegions
        // lineMeanHeight = lineMeanHeight/scaleFactorX;
        cb.endLayer();
    }
    cb.beginLayer(imgLayer);
    cb.addImage(img);
    cb.endLayer();
    if (highlightTags) {
        highlightAllTagsOnImg(lineAndColorList, cb, cutoffLeft, cutoffTop);
    }
/*
		 * draw tag lines
		 */
// addTocLinks(doc, page,cutoffTop);
}

Example 28 with PdfContentByte

use of com.itextpdf.text.pdf.PdfContentByte in project gephi by gephi.

the class ArrowRenderer method render.

@Override
public void render(final Item item, final RenderTarget target, final PreviewProperties properties) {
    final Helper h = new Helper(item, properties);
    final Color color = EdgeRenderer.getColor(item, properties);
    if (target instanceof G2DTarget) {
        Graphics2D graphics = ((G2DTarget) target).getGraphics();
        graphics.setColor(color);
        final GeneralPath gpath = new GeneralPath();
        gpath.moveTo(h.p1.x, h.p1.y);
        gpath.lineTo(h.p2.x, h.p2.y);
        gpath.lineTo(h.p3.x, h.p3.y);
        gpath.closePath();
        graphics.fill(gpath);
    } else if (target instanceof SVGTarget) {
        final SVGTarget svgTarget = (SVGTarget) target;
        final Element arrowElem = svgTarget.createElement("polyline");
        arrowElem.setAttribute("points", String.format(Locale.ENGLISH, "%f,%f %f,%f %f,%f", h.p1.x, h.p1.y, h.p2.x, h.p2.y, h.p3.x, h.p3.y));
        arrowElem.setAttribute("class", String.format("%s %s", SVGUtils.idAsClassAttribute(((Node) h.sourceItem.getSource()).getId()), SVGUtils.idAsClassAttribute(((Node) h.targetItem.getSource()).getId())));
        arrowElem.setAttribute("fill", svgTarget.toHexString(color));
        arrowElem.setAttribute("fill-opacity", (color.getAlpha() / 255f) + "");
        arrowElem.setAttribute("stroke", "none");
        svgTarget.getTopElement(SVGTarget.TOP_ARROWS).appendChild(arrowElem);
    } else if (target instanceof PDFTarget) {
        final PDFTarget pdfTarget = (PDFTarget) target;
        final PdfContentByte cb = pdfTarget.getContentByte();
        cb.moveTo(h.p1.x, -h.p1.y);
        cb.lineTo(h.p2.x, -h.p2.y);
        cb.lineTo(h.p3.x, -h.p3.y);
        cb.closePath();
        cb.setRGBColorFill(color.getRed(), color.getGreen(), color.getBlue());
        if (color.getAlpha() < 255) {
            cb.saveState();
            float alpha = color.getAlpha() / 255f;
            PdfGState gState = new PdfGState();
            gState.setFillOpacity(alpha);
            cb.setGState(gState);
        }
        cb.fill();
        if (color.getAlpha() < 255) {
            cb.restoreState();
        }
    }
}

Example 29 with PdfContentByte

use of com.itextpdf.text.pdf.PdfContentByte in project Java-Matrix-Benchmark by lessthanoptimal.

the class UtilPlotPdf method saveAsPdf.

public static void saveAsPdf(LegendTitle legend, String FILENAME, int width, int height) {
    Document document = new Document(new Rectangle(width, height));
    try {
        FileOutputStream file = new FileOutputStream(FILENAME);
        PdfWriter writer = PdfWriter.getInstance(document, file);
        document.open();
        PdfContentByte cb = writer.getDirectContent();
        PdfTemplate tp = cb.createTemplate(width, height);
        Graphics2D g2d = tp.createGraphics(width, height, new DefaultFontMapper());
        Rectangle2D r2d = new Rectangle2D.Double(0, 0, width, height);
        legend.draw(g2d, r2d);
        g2d.dispose();
        cb.addTemplate(tp, 0, 0);
        document.close();
        g2d.dispose();
    } catch (Exception e) {
        e.printStackTrace();
    }
}