Example usage for com.lowagie.text Image setDpi

List of usage examples for com.lowagie.text Image setDpi

Introduction

In this page you can find the example usage for com.lowagie.text Image setDpi.

Prototype

public void setDpi(int dpiX, int dpiY) 

Source Link

Document

Sets the dots per inch value

Usage

From source file:de.cuseb.bilderbuch.pdf.PdfController.java

License:Open Source License

@RequestMapping(value = "/pdf", method = RequestMethod.GET)
public void generatePdf(HttpSession session, HttpServletResponse httpServletResponse) {

    try {//  www  . j av  a 2s.  c  om
        PdfRequest pdfRequest = (PdfRequest) session.getAttribute("pdfRequest");
        httpServletResponse.setContentType("application/pdf");

        Document document = new Document();
        PdfWriter writer = PdfWriter.getInstance(document, httpServletResponse.getOutputStream());
        writer.setDefaultColorspace(PdfName.COLORSPACE, PdfName.DEFAULTRGB);

        //document.addAuthor(pdfRequest.getAuthor());
        //document.addTitle(pdfRequest.getTitle());
        document.setPageSize(
                new Rectangle(Utilities.millimetersToPoints(156), Utilities.millimetersToPoints(148)));
        document.open();

        FontFactory.defaultEmbedding = true;
        FontFactory.register("IndieRock.ttf", "IndieRock");
        Font font = FontFactory.getFont("IndieRock");
        BaseFont baseFont = font.getBaseFont();
        PdfContentByte cb = writer.getDirectContent();

        Iterator<PdfPage> pages = pdfRequest.getPages().iterator();
        while (pages.hasNext()) {

            PdfPage page = pages.next();
            if (page.getImage() != null) {

                Image image = Image.getInstance(new URL(page.getImage().getUrl()));
                image.setDpi(300, 300);
                image.setAbsolutePosition(0f, 0f);
                image.scaleAbsolute(document.getPageSize().getWidth(), document.getPageSize().getHeight());
                document.add(image);

                cb.saveState();
                cb.beginText();
                cb.setColorFill(Color.WHITE);
                cb.moveText(10f, 10f);
                cb.setFontAndSize(baseFont, 18);
                cb.showText(page.getSentence());
                cb.endText();
                cb.restoreState();

                if (pages.hasNext()) {
                    document.newPage();
                }
            }
        }
        document.close();

    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:org.orbeon.oxf.processor.pdf.PDFTemplateProcessor.java

License:Open Source License

private void handleGroup(PipelineContext pipelineContext, GroupContext groupContext, List<Element> statements,
        FunctionLibrary functionLibrary, PdfReader reader) throws DocumentException, IOException {

    final NodeInfo contextNode = (NodeInfo) groupContext.contextNodeSet.get(groupContext.contextPosition - 1);
    final Map<String, ValueRepresentation> variableToValueMap = new HashMap<String, ValueRepresentation>();

    variableToValueMap.put("page-count", new Int64Value(reader.getNumberOfPages()));
    variableToValueMap.put("page-number", new Int64Value(groupContext.pageNumber));
    variableToValueMap.put("page-height", new FloatValue(groupContext.pageHeight));

    // Iterate through statements
    for (final Element currentElement : statements) {

        // Check whether this statement applies to the current page
        final String elementPage = currentElement.attributeValue("page");
        if ((elementPage != null) && !Integer.toString(groupContext.pageNumber).equals(elementPage))
            continue;

        final NamespaceMapping namespaceMapping = new NamespaceMapping(
                Dom4jUtils.getNamespaceContextNoDefault(currentElement));

        final String elementName = currentElement.getName();
        if (elementName.equals("group")) {
            // Handle group

            final GroupContext newGroupContext = new GroupContext(groupContext);

            final String ref = currentElement.attributeValue("ref");
            if (ref != null) {
                final NodeInfo newContextNode = (NodeInfo) XPathCache.evaluateSingle(
                        groupContext.contextNodeSet, groupContext.contextPosition, ref, namespaceMapping,
                        variableToValueMap, functionLibrary, null, null,
                        (LocationData) currentElement.getData());

                if (newContextNode == null)
                    continue;

                newGroupContext.contextNodeSet = Collections.singletonList((Item) newContextNode);
                newGroupContext.contextPosition = 1;
            }/*from  w w  w .j a  v  a2s  .  c  o  m*/

            final String offsetXString = resolveAttributeValueTemplates(pipelineContext, contextNode,
                    variableToValueMap, null, null, currentElement, currentElement.attributeValue("offset-x"));
            if (offsetXString != null) {
                newGroupContext.offsetX = groupContext.offsetX + Float.parseFloat(offsetXString);
            }

            final String offsetYString = resolveAttributeValueTemplates(pipelineContext, contextNode,
                    variableToValueMap, null, null, currentElement, currentElement.attributeValue("offset-y"));
            if (offsetYString != null) {
                newGroupContext.offsetY = groupContext.offsetY + Float.parseFloat(offsetYString);
            }

            final String fontPitch = resolveAttributeValueTemplates(pipelineContext, contextNode,
                    variableToValueMap, null, null, currentElement,
                    currentElement.attributeValue("font-pitch"));
            if (fontPitch != null)
                newGroupContext.fontPitch = Float.parseFloat(fontPitch);

            final String fontFamily = resolveAttributeValueTemplates(pipelineContext, contextNode,
                    variableToValueMap, null, null, currentElement,
                    currentElement.attributeValue("font-family"));
            if (fontFamily != null)
                newGroupContext.fontFamily = fontFamily;

            final String fontSize = resolveAttributeValueTemplates(pipelineContext, contextNode,
                    variableToValueMap, null, null, currentElement, currentElement.attributeValue("font-size"));
            if (fontSize != null)
                newGroupContext.fontSize = Float.parseFloat(fontSize);

            handleGroup(pipelineContext, newGroupContext, Dom4jUtils.elements(currentElement), functionLibrary,
                    reader);

        } else if (elementName.equals("repeat")) {
            // Handle repeat

            final String nodeset = currentElement.attributeValue("nodeset");
            final List iterations = XPathCache.evaluate(groupContext.contextNodeSet,
                    groupContext.contextPosition, nodeset, namespaceMapping, variableToValueMap,
                    functionLibrary, null, null, (LocationData) currentElement.getData());

            final String offsetXString = resolveAttributeValueTemplates(pipelineContext, contextNode,
                    variableToValueMap, null, null, currentElement, currentElement.attributeValue("offset-x"));
            final String offsetYString = resolveAttributeValueTemplates(pipelineContext, contextNode,
                    variableToValueMap, null, null, currentElement, currentElement.attributeValue("offset-y"));
            final float offsetIncrementX = (offsetXString == null) ? 0 : Float.parseFloat(offsetXString);
            final float offsetIncrementY = (offsetYString == null) ? 0 : Float.parseFloat(offsetYString);

            for (int iterationIndex = 1; iterationIndex <= iterations.size(); iterationIndex++) {

                final GroupContext newGroupContext = new GroupContext(groupContext);

                newGroupContext.contextNodeSet = iterations;
                newGroupContext.contextPosition = iterationIndex;

                newGroupContext.offsetX = groupContext.offsetX + (iterationIndex - 1) * offsetIncrementX;
                newGroupContext.offsetY = groupContext.offsetY + (iterationIndex - 1) * offsetIncrementY;

                handleGroup(pipelineContext, newGroupContext, Dom4jUtils.elements(currentElement),
                        functionLibrary, reader);
            }
        } else if (elementName.equals("field")) {

            final String fieldNameStr = currentElement.attributeValue("acro-field-name");

            if (fieldNameStr != null) {
                final String value = currentElement.attributeValue("value") == null
                        ? currentElement.attributeValue("ref")
                        : currentElement.attributeValue("value");
                // Get value from instance

                final String text = XPathCache.evaluateAsString(groupContext.contextNodeSet,
                        groupContext.contextPosition, value, namespaceMapping, variableToValueMap,
                        functionLibrary, null, null, (LocationData) currentElement.getData());
                final String fieldName = XPathCache.evaluateAsString(groupContext.contextNodeSet,
                        groupContext.contextPosition, fieldNameStr, namespaceMapping, variableToValueMap,
                        functionLibrary, null, null, (LocationData) currentElement.getData());
                groupContext.acroFields.setField(fieldName, text);

            } else {
                // Handle field

                final String leftAttribute = currentElement.attributeValue("left") == null
                        ? currentElement.attributeValue("left-position")
                        : currentElement.attributeValue("left");
                final String topAttribute = currentElement.attributeValue("top") == null
                        ? currentElement.attributeValue("top-position")
                        : currentElement.attributeValue("top");

                final String leftPosition = resolveAttributeValueTemplates(pipelineContext, contextNode,
                        variableToValueMap, null, null, currentElement, leftAttribute);
                final String topPosition = resolveAttributeValueTemplates(pipelineContext, contextNode,
                        variableToValueMap, null, null, currentElement, topAttribute);

                final String size = resolveAttributeValueTemplates(pipelineContext, contextNode,
                        variableToValueMap, null, null, currentElement, currentElement.attributeValue("size"));
                final String value = currentElement.attributeValue("value") == null
                        ? currentElement.attributeValue("ref")
                        : currentElement.attributeValue("value");

                final FontAttributes fontAttributes = getFontAttributes(currentElement, pipelineContext,
                        groupContext, variableToValueMap, contextNode);

                // Output value
                final BaseFont baseFont = BaseFont.createFont(fontAttributes.fontFamily, BaseFont.CP1252,
                        BaseFont.NOT_EMBEDDED);
                groupContext.contentByte.beginText();
                {
                    groupContext.contentByte.setFontAndSize(baseFont, fontAttributes.fontSize);

                    final float xPosition = Float.parseFloat(leftPosition) + groupContext.offsetX;
                    final float yPosition = groupContext.pageHeight
                            - (Float.parseFloat(topPosition) + groupContext.offsetY);

                    // Get value from instance
                    final String text = XPathCache.evaluateAsString(groupContext.contextNodeSet,
                            groupContext.contextPosition, value, namespaceMapping, variableToValueMap,
                            functionLibrary, null, null, (LocationData) currentElement.getData());

                    // Iterate over characters and print them
                    if (text != null) {
                        int len = Math.min(text.length(),
                                (size != null) ? Integer.parseInt(size) : Integer.MAX_VALUE);
                        for (int j = 0; j < len; j++)
                            groupContext.contentByte.showTextAligned(PdfContentByte.ALIGN_CENTER,
                                    text.substring(j, j + 1),
                                    xPosition + ((float) j) * fontAttributes.fontPitch, yPosition, 0);
                    }
                }
                groupContext.contentByte.endText();
            }
        } else if (elementName.equals("barcode")) {
            // Handle barcode

            final String leftAttribute = currentElement.attributeValue("left");
            final String topAttribute = currentElement.attributeValue("top");

            final String leftPosition = resolveAttributeValueTemplates(pipelineContext, contextNode,
                    variableToValueMap, null, null, currentElement, leftAttribute);
            final String topPosition = resolveAttributeValueTemplates(pipelineContext, contextNode,
                    variableToValueMap, null, null, currentElement, topAttribute);

            //                final String size = resolveAttributeValueTemplates(pipelineContext, contextNode, variableToValueMap, null, null, currentElement, currentElement.attributeValue("size"));
            final String value = currentElement.attributeValue("value") == null
                    ? currentElement.attributeValue("ref")
                    : currentElement.attributeValue("value");
            final String type = currentElement.attributeValue("type") == null ? "CODE39"
                    : currentElement.attributeValue("type");
            final float height = currentElement.attributeValue("height") == null ? 10.0f
                    : Float.parseFloat(currentElement.attributeValue("height"));

            final float xPosition = Float.parseFloat(leftPosition) + groupContext.offsetX;
            final float yPosition = groupContext.pageHeight
                    - (Float.parseFloat(topPosition) + groupContext.offsetY);
            final String text = XPathCache.evaluateAsString(groupContext.contextNodeSet,
                    groupContext.contextPosition, value, namespaceMapping, variableToValueMap, functionLibrary,
                    null, null, (LocationData) currentElement.getData());

            final FontAttributes fontAttributes = getFontAttributes(currentElement, pipelineContext,
                    groupContext, variableToValueMap, contextNode);
            final BaseFont baseFont = BaseFont.createFont(fontAttributes.fontFamily, BaseFont.CP1252,
                    BaseFont.NOT_EMBEDDED);

            final Barcode barcode = createBarCode(type);
            barcode.setCode(text);
            barcode.setBarHeight(height);
            barcode.setFont(baseFont);
            barcode.setSize(fontAttributes.fontSize);
            final Image barcodeImage = barcode.createImageWithBarcode(groupContext.contentByte, null, null);
            barcodeImage.setAbsolutePosition(xPosition, yPosition);
            groupContext.contentByte.addImage(barcodeImage);
        } else if (elementName.equals("image")) {
            // Handle image

            // Read image
            final Image image;
            {
                final String hrefAttribute = currentElement.attributeValue("href");
                final String inputName = ProcessorImpl.getProcessorInputSchemeInputName(hrefAttribute);
                if (inputName != null) {
                    // Read the input
                    final ByteArrayOutputStream os = new ByteArrayOutputStream();
                    readInputAsSAX(pipelineContext, inputName,
                            new BinaryTextXMLReceiver(null, os, true, false, null, false, false, null, false));

                    // Create the image
                    image = Image.getInstance(os.toByteArray());
                } else {
                    // Read and create the image
                    final URL url = URLFactory.createURL(hrefAttribute);

                    // Use ConnectionResult so that header/session forwarding takes place
                    final ConnectionResult connectionResult = new Connection().open(
                            NetUtils.getExternalContext(), new IndentedLogger(logger, ""), false,
                            Connection.Method.GET.name(), url, null, null, null, null,
                            Connection.getForwardHeaders());

                    if (connectionResult.statusCode != 200) {
                        connectionResult.close();
                        throw new OXFException("Got invalid return code while loading image: "
                                + url.toExternalForm() + ", " + connectionResult.statusCode);
                    }

                    // Make sure things are cleaned-up not too late
                    pipelineContext.addContextListener(new PipelineContext.ContextListener() {
                        public void contextDestroyed(boolean success) {
                            connectionResult.close();
                        }
                    });

                    // Here we decide to copy to temp file and load as a URL. We could also provide bytes directly.
                    final String tempURLString = NetUtils.inputStreamToAnyURI(
                            connectionResult.getResponseInputStream(), NetUtils.REQUEST_SCOPE);
                    image = Image.getInstance(URLFactory.createURL(tempURLString));
                }
            }

            final String fieldNameStr = currentElement.attributeValue("acro-field-name");
            if (fieldNameStr != null) {
                // Use field as placeholder

                final String fieldName = XPathCache.evaluateAsString(groupContext.contextNodeSet,
                        groupContext.contextPosition, fieldNameStr, namespaceMapping, variableToValueMap,
                        functionLibrary, null, null, (LocationData) currentElement.getData());
                final float[] positions = groupContext.acroFields.getFieldPositions(fieldName);

                if (positions != null) {
                    final Rectangle rectangle = new Rectangle(positions[1], positions[2], positions[3],
                            positions[4]);

                    // This scales the image so that it fits in the box (but the aspect ratio is not changed)
                    image.scaleToFit(rectangle.getWidth(), rectangle.getHeight());

                    final float yPosition = positions[2] + rectangle.getHeight() - image.getScaledHeight();
                    image.setAbsolutePosition(
                            positions[1] + (rectangle.getWidth() - image.getScaledWidth()) / 2, yPosition);

                    // Add image
                    groupContext.contentByte.addImage(image);
                }

            } else {
                // Use position, etc.
                final String leftAttribute = currentElement.attributeValue("left");
                final String topAttribute = currentElement.attributeValue("top");
                final String scalePercentAttribute = currentElement.attributeValue("scale-percent");
                final String dpiAttribute = currentElement.attributeValue("dpi");

                final String leftPosition = resolveAttributeValueTemplates(pipelineContext, contextNode,
                        variableToValueMap, null, null, currentElement, leftAttribute);
                final String topPosition = resolveAttributeValueTemplates(pipelineContext, contextNode,
                        variableToValueMap, null, null, currentElement, topAttribute);

                final float xPosition = Float.parseFloat(leftPosition) + groupContext.offsetX;
                final float yPosition = groupContext.pageHeight
                        - (Float.parseFloat(topPosition) + groupContext.offsetY);

                final String scalePercent = resolveAttributeValueTemplates(pipelineContext, contextNode,
                        variableToValueMap, null, null, currentElement, scalePercentAttribute);
                final String dpi = resolveAttributeValueTemplates(pipelineContext, contextNode,
                        variableToValueMap, null, null, currentElement, dpiAttribute);

                // Set image parameters
                image.setAbsolutePosition(xPosition, yPosition);
                if (scalePercent != null) {
                    image.scalePercent(Float.parseFloat(scalePercent));
                }
                if (dpi != null) {
                    final int dpiInt = Integer.parseInt(dpi);
                    image.setDpi(dpiInt, dpiInt);
                }

                // Add image
                groupContext.contentByte.addImage(image);
            }
        } else {
            // NOP
        }
    }
}