Java Code Examples for com.itextpdf.text.pdf.PdfContentByte#rectangle()

void split(PdfReader reader, int page) throws IOException {
    PdfImportedPage importedPage = writer.getImportedPage(reader, page);

    Rectangle pageSizeToImport = reader.getPageSize(page);
    Iterable<Rectangle> rectangles = determineSplitRectangles(reader, page);

    for (Rectangle rectangle : rectangles) {
        newPage(rectangle);
        PdfContentByte directContent = writer.getDirectContent();
        directContent.saveState();
        directContent.rectangle(rectangle.getLeft(), rectangle.getBottom(), rectangle.getWidth(), rectangle.getHeight());
        directContent.clip();
        directContent.newPath();

        writer.getDirectContent().addTemplate(importedPage, -pageSizeToImport.getLeft(), -pageSizeToImport.getBottom());

        directContent.restoreState();
    }
}
 

@Override
    public void cellLayout(PdfPCell cell, Rectangle position, PdfContentByte[] canvases) {
        PdfContentByte canvas = canvases[PdfPTable.BACKGROUNDCANVAS];

        float xTransition = position.getLeft() + (position.getRight() - position.getLeft()) * (percent/100.0f);
        float yTransition = (position.getTop() + position.getBottom()) / 2f;
        float radius = (position.getRight() - position.getLeft()) * 0.025f;
        PdfShading axial = PdfShading.simpleAxial(canvas.getPdfWriter(),
                xTransition - radius, yTransition, xTransition + radius, yTransition, leftColor, rightColor);
        PdfShadingPattern shading = new PdfShadingPattern(axial);

        canvas.saveState();
        canvas.setShadingFill(shading);
        canvas.rectangle(position.getLeft(), position.getBottom(), position.getWidth(), position.getHeight());
//        canvas.clip();
        canvas.fill();
        canvas.restoreState();
    }
 

void split(PdfReader reader, int page) throws IOException {
    PdfImportedPage importedPage = writer.getImportedPage(reader, page);
    PdfContentByte directContent = writer.getDirectContent();
    yPosition = pageSize.getTop();

    Rectangle pageSizeToImport = reader.getPageSize(page);
    float[] borderPositions = determineSplitPositions(reader, page);
    if (borderPositions == null || borderPositions.length < 2)
        return;

    for (int borderIndex = 0; borderIndex + 1 < borderPositions.length; borderIndex++) {
        float height = borderPositions[borderIndex] - borderPositions[borderIndex + 1];
        if (height <= 0)
            continue;

        directContent.saveState();
        directContent.rectangle(0, yPosition - height, pageSizeToImport.getWidth(), height);
        directContent.clip();
        directContent.newPath();

        writer.getDirectContent().addTemplate(importedPage, 0, yPosition - (borderPositions[borderIndex] - pageSizeToImport.getBottom()));

        directContent.restoreState();
        newPage();
    }
}
 

private static void createRectangle(PdfWriter writer, float x, float y, float width, float height, BaseColor color)
{
    float posX = Utilities.millimetersToPoints(x);
    float posY = Utilities.millimetersToPoints(y);

    float widthX = Utilities.millimetersToPoints(width + x);
    float heightY = Utilities.millimetersToPoints(height + y);

    Rectangle rectangle = new Rectangle(posX, posY, widthX, heightY);

    PdfContentByte canvas = writer.getDirectContent();
    rectangle.setBorder(Rectangle.BOX);
    rectangle.setBorderWidth(1);
    rectangle.setBorderColor(color);
    canvas.rectangle(rectangle);
}
 

/**
 * <a href="http://stackoverflow.com/questions/43870545/filling-a-pdf-with-itextsharp-and-then-hiding-the-base-layer">
 * Filling a PDF with iTextsharp and then hiding the base layer
 * </a>
 * <p>
 * This test shows how to cover all content using a white rectangle.
 * </p>
 */
@Test
public void testHideContenUnderRectangle() throws IOException, DocumentException
{
    try (   InputStream resource = getClass().getResourceAsStream("document.pdf");
            OutputStream result = new FileOutputStream(new File(RESULT_FOLDER, "document-hiddenContent.pdf")))
    {
        PdfReader pdfReader = new PdfReader(resource);
        PdfStamper pdfStamper = new PdfStamper(pdfReader, result);
        for (int page = 1; page <= pdfReader.getNumberOfPages(); page++)
        {
            Rectangle pageSize = pdfReader.getPageSize(page);
            PdfContentByte canvas = pdfStamper.getOverContent(page);
            canvas.setColorFill(BaseColor.WHITE);
            canvas.rectangle(pageSize.getLeft(), pageSize.getBottom(), pageSize.getWidth(), pageSize.getHeight());
            canvas.fill();
        }
        pdfStamper.close();
    }
}
 

/**
 * <a href="https://stackoverflow.com/questions/50121297/missing-colored-area-on-pdf-using-itext-pdf">
 * Missing colored area on pdf using itext pdf
 * </a>
 * <p>
 * This test shows how to mark a whole table row without the
 * marking hiding the existing content or vice versa.
 * </p>
 */
@Test
public void test() throws IOException, DocumentException {
    try (   InputStream resource = getClass().getResourceAsStream("document.pdf");
            OutputStream result = new FileOutputStream(new File(RESULT_FOLDER, "document-marked.pdf"))) {
        PdfReader pdfReader = new PdfReader(resource);
        PdfStamper stamper = new PdfStamper(pdfReader, result);

        PdfContentByte canvas = stamper.getOverContent(1);
        canvas.saveState();
        PdfGState state = new PdfGState();
        state.setBlendMode(new PdfName("Multiply"));
        canvas.setGState(state);
        canvas.setColorFill(BaseColor.YELLOW);
        canvas.rectangle(60, 586, 477, 24);
        canvas.fill();
        canvas.restoreState();

        stamper.close();
    }
}
 

@Override
public void onEndPage(PdfWriter writer, Document document) {
    if (active) {
        PdfContentByte cb = writer.getDirectContentUnder();
        cb.saveState();
        cb.setColorFill(color);
        cb.rectangle(document.left(), document.bottom() - offset,
                document.right() - document.left(), startPosition - document.bottom());
        cb.fill();
        cb.restoreState();
    }
}
 

@Override
public void onParagraphEnd(PdfWriter writer, Document document, float paragraphPosition) {
    if (active) {
        PdfContentByte cb = writer.getDirectContentUnder();
        cb.saveState();
        cb.setColorFill(color);
        cb.rectangle(document.left(), paragraphPosition - offset,
                document.right() - document.left(), startPosition - paragraphPosition);
        cb.fill();
        cb.restoreState();
    }
}
 

private void printPage3(Document document, PdfContentByte canvas) throws DocumentException {
    int cols = 3;
    int rows = 15;

    PdfPTable table = new PdfPTable(cols);
    for (int row = 0; row < rows; row++) {
        for (int col = 0; col < cols; col++) {
            table.addCell(new Phrase("Cell " + row + ", " + col));
        }
    }
    table.setSpacingBefore(5);

    Rectangle docBounds = document.getPageSize();
    Rectangle upper = new Rectangle(docBounds.getLeft(20), docBounds.getTop(20) - 200, docBounds.getRight(20), docBounds.getTop(20));
    upper.setBackgroundColor(new BaseColor(23, 142, 255, 20));
    Rectangle lower = new Rectangle(docBounds.getLeft(20), docBounds.getBottom(20), docBounds.getRight(20), docBounds.getBottom(20) + 600);
    lower.setBackgroundColor(new BaseColor(255, 142, 23, 20));
    Rectangle[] rectangles = new Rectangle[] { upper, lower };

    for (Rectangle bounds : rectangles)
    {
        bounds.setBorder(Rectangle.BOX);
        bounds.setBorderColor(BaseColor.BLACK);
        bounds.setBorderWidth(1);

        canvas.rectangle(bounds);
    }

    rectangles = drawKeepTogether(new Paragraph("This table should keep together!"), canvas, rectangles);
    rectangles = drawKeepTogether(table, canvas, rectangles);
}
 

/**
 * <a href="http://stackoverflow.com/questions/43807931/creating-table-in-pdf-on-last-page-bottom-wrong-official-solution">
 * Creating table in pdf on last page bottom (wrong official solution)
 * </a>
 * <p>
 * Indeed, there is an error in the official sample which effectively
 * applies the margins twice.
 * </p>
 */
@Test
public void testCreateTableLikeUser7968180() throws FileNotFoundException, DocumentException
{
    Document document = new Document(PageSize.A4);
    PdfWriter writer = PdfWriter.getInstance(document,
            new FileOutputStream(new File(RESULT_FOLDER, "calendarUser7968180.pdf")));
    document.open();

    PdfPTable datatable = null;//createHeaderTable();
    //document.add(datatable);
    datatable = createFooterTable();

    drawTableAtTheEndOfPage(document, writer, datatable);

    // Marking the border
    PdfContentByte canvas = writer.getDirectContentUnder();
    canvas.setColorStroke(BaseColor.RED);
    canvas.setColorFill(BaseColor.PINK);
    canvas.rectangle(document.left(), document.bottom(), document.right() - document.left(), document.top() - document.bottom());
    Rectangle pageSize = document.getPageSize(); 
    canvas.rectangle(pageSize.getLeft(), pageSize.getBottom(), pageSize.getWidth(), pageSize.getHeight());
    canvas.eoFillStroke();

    document.close();
    System.out.println("done");
}
 

void mark(InputStream input, OutputStream output, Pattern pattern) throws DocumentException, IOException
{
    PdfReader reader = new PdfReader(input);
    PdfStamper stamper = new PdfStamper(reader, output);
    try {
        PdfReaderContentParser parser = new PdfReaderContentParser(reader);
        for (int pageNr = 1; pageNr <= reader.getNumberOfPages(); pageNr++)
        {
            SearchTextLocationExtractionStrategy strategy = new SearchTextLocationExtractionStrategy(pattern);
            parser.processContent(pageNr, strategy, Collections.emptyMap()).getResultantText();
            Collection<TextRectangle> locations = strategy.getLocations(null);
            if (locations.isEmpty())
                continue;

            PdfContentByte canvas = stamper.getOverContent(pageNr);
            canvas.setRGBColorStroke(255, 255, 0);
            for (TextRectangle location : locations)
            {
                canvas.rectangle(location.getMinX(), location.getMinY(), location.getWidth(), location.getHeight());
            }
            canvas.stroke();
        }
        stamper.close();
    } finally {
        reader.close();
    }
}
 

void enhance(PdfContentByte page, Collection<Rectangle2D> rectangles)
{
    for (Rectangle2D rectangle : rectangles)
    {
        page.setColorStroke(pickColor());
        page.rectangle((float) rectangle.getMinX(), (float) rectangle.getMinY(), (float) rectangle.getWidth(), (float) rectangle.getHeight());
        page.stroke();
    }
}
 

void enhance(PdfContentByte page, Collection<Rectangle2D> rectangles, Point2D point, BaseColor color)
{
    Rectangle2D best = null;
    double bestDist = Double.MAX_VALUE;

    for (Rectangle2D rectangle : rectangles)
    {
        double distance = distance(rectangle, point);
        if (distance < bestDist)
        {
            best = rectangle;
            bestDist = distance;
        }
    }

    if (best != null)
    {
        page.setColorFill(color);
        page.rectangle((float) best.getMinX(), (float) best.getMinY(), (float) best.getWidth(), (float) best.getHeight());
        page.fill();
        System.out.printf("    Best rectangle for %7.3f, %7.3f is %7.3f, %7.3f, %7.3f, %7.3f\n", point.getX(), point.getY(), best.getMinX(),
                best.getMinY(), best.getWidth(), best.getHeight());
    }
    else
    {
        System.err.printf("!!! No best rectangle for %7.3f, %7.3f\n", point.getX(), point.getY());
    }
}
 

static byte[] createSimplePatternPdf() throws DocumentException, IOException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, baos);
    document.open();

    PdfContentByte directContent = writer.getDirectContent();
    Rectangle pageSuze = document.getPageSize();
    
    PdfPatternPainter painter = directContent.createPattern(200, 150);
    painter.setColorStroke(BaseColor.GREEN);
    painter.beginText();
    painter.setTextRenderingMode(PdfPatternPainter.TEXT_RENDER_MODE_STROKE);
    painter.setTextMatrix(AffineTransform.getTranslateInstance(0, 50));
    painter.setFontAndSize(BaseFont.createFont(), 100);
    painter.showText("Test");
    painter.endText();

    directContent.setColorFill(new PatternColor(painter));
    directContent.rectangle(pageSuze.getLeft(), pageSuze.getBottom(), pageSuze.getWidth(), pageSuze.getHeight());
    directContent.fill();

    document.close();

    return baos.toByteArray();
}
 

void merge(PdfReader reader, PdfReaderContentParser parser, int page) throws IOException
{
    PdfImportedPage importedPage = writer.getImportedPage(reader, page);
    PdfContentByte directContent = writer.getDirectContent();
    
    PageVerticalAnalyzer finder = parser.processContent(page, new PageVerticalAnalyzer());
    if (finder.verticalFlips.size() < 2)
        return;
    Rectangle pageSizeToImport = reader.getPageSize(page);

    int startFlip = finder.verticalFlips.size() - 1;
    boolean first = true;
    while (startFlip > 0)
    {
        if (!first)
            newPage();

        float freeSpace = yPosition - pageSize.getBottom(bottomMargin);
        int endFlip = startFlip + 1;
        while ((endFlip > 1) && (finder.verticalFlips.get(startFlip) - finder.verticalFlips.get(endFlip - 2) < freeSpace))
            endFlip -=2;
        if (endFlip < startFlip)
        {
            float height = finder.verticalFlips.get(startFlip) - finder.verticalFlips.get(endFlip);

            directContent.saveState();
            directContent.rectangle(0, yPosition - height, pageSizeToImport.getWidth(), height);
            directContent.clip();
            directContent.newPath();

            writer.getDirectContent().addTemplate(importedPage, 0, yPosition - (finder.verticalFlips.get(startFlip) - pageSizeToImport.getBottom()));

            directContent.restoreState();
            yPosition -= height + gap;
            startFlip = endFlip - 1;
        }
        else if (!first) 
            throw new IllegalArgumentException(String.format("Page %s content sections too large.", page));
        first = false;
    }
}