Example usage for com.lowagie.text Image TEXTWRAP

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

Introduction

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

Prototype

int TEXTWRAP

To view the source code for com.lowagie.text Image TEXTWRAP.

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Document

this is a kind of image alignment.

Usage

From source file:org.sakaiproject.tool.assessment.pdf.itext.HTMLWorker.java

License:Mozilla Public License

public void startElement(String tag, HashMap h) {
    if (!tagsSupported.containsKey(tag))
        return;//from  w  w w  . ja  v  a  2s. co m
    try {
        style.applyStyle(tag, h);
        String follow = (String) FactoryProperties.followTags.get(tag);
        if (follow != null) {
            HashMap prop = new HashMap();
            prop.put(follow, null);
            cprops.addToChain(follow, prop);
            return;
        }
        FactoryProperties.insertStyle(h);
        if (tag.equals("a")) {
            cprops.addToChain(tag, h);
            if (currentParagraph == null)
                currentParagraph = new Paragraph();
            stack.push(currentParagraph);
            currentParagraph = new Paragraph();
            return;
        }
        if (tag.equals("br")) {
            if (currentParagraph == null)
                currentParagraph = new Paragraph();
            currentParagraph.add(factoryProperties.createChunk("\n", cprops));
            return;
        }
        if (tag.equals("hr")) {

            PdfPTable hr = new PdfPTable(1);
            hr.setHorizontalAlignment(Element.ALIGN_CENTER);
            hr.setWidthPercentage(100f);
            hr.setSpacingAfter(0f);
            hr.setSpacingBefore(0f);
            PdfPCell cell = new PdfPCell();
            cell.setUseVariableBorders(true);
            cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
            cell.setHorizontalAlignment(Element.ALIGN_CENTER);
            cell.setBorder(PdfPCell.BOTTOM);
            cell.setBorderWidth(1f);
            cell.setPadding(0);
            cell.addElement(factoryProperties.createChunk("\n", cprops));

            hr.addCell(cell);
            // paragraphs can't have tables? really? without it hr's may be rendered a bit early..
            //if (currentParagraph != null)
            //    currentParagraph.add(hr);
            //else
            document.add(hr);
            return;

        }
        if (tag.equals("font") || tag.equals("span")) {
            cprops.addToChain(tag, h);
            return;
        }
        if (tag.equals("img")) {
            String src = (String) h.get("src");
            if (src == null)
                return;
            cprops.addToChain(tag, h);
            Image img = null;
            if (interfaceProps != null) {
                HashMap images = (HashMap) interfaceProps.get("img_static");
                if (images != null) {
                    Image tim = (Image) images.get(src);
                    if (tim != null)
                        img = Image.getInstance(tim);
                } else {
                    if (!src.startsWith("http")) { // relative src references only
                        String baseurl = (String) interfaceProps.get("img_baseurl");
                        if (baseurl != null) {
                            src = baseurl + src;
                            img = Image.getInstance(src);
                        }
                    }
                }
            }
            if (img == null) {
                if (!src.startsWith("http")) {
                    String path = cprops.getProperty("image_path");
                    if (path == null)
                        path = "";
                    src = new File(path, src).getPath();
                    img = Image.getInstance(src);
                } else {
                    byte[] buffer;
                    String srcResource = src.substring(src.indexOf("/content", 0)).replaceAll("/content", "");
                    buffer = getImageStream(URLDecoder.decode(srcResource));
                    img = Image.getInstance(buffer);
                }
            }

            String align = (String) h.get("align");
            String width = (String) h.get("width");
            String height = (String) h.get("height");
            String border = (String) h.get("border");
            String hspace = (String) h.get("hspace");
            String vspace = (String) h.get("vspace");
            String before = cprops.getProperty("before");
            String after = cprops.getProperty("after");
            float wp = 0.0f;
            float lp = 0.0f;
            if (maxWidth > 0 && ((width != null && Integer.parseInt(width) > maxWidth)
                    || (width == null && (int) img.getWidth() > maxWidth))) {
                wp = lengthParse(String.valueOf(maxWidth), (int) img.getWidth());
                lp = wp;
            } else {
                wp = lengthParse(width, (int) img.getWidth());
                lp = lengthParse(height, (int) img.getHeight());
            }
            if (wp > 0 && lp > 0)
                img.scalePercent(wp, lp);
            else if (wp > 0)
                img.scalePercent(wp);
            else if (lp > 0)
                img.scalePercent(lp);
            img.setWidthPercentage(0);
            // border
            if (border != null && !"".equals(border)) {
                try {
                    img.setBorderWidth(Integer.parseInt(border));
                    img.setBorder(Image.BOX);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
            // horizonatal space
            if (hspace != null && !"".equals(hspace)) {
                try {
                    img.setSpacingAfter(Float.parseFloat(hspace));
                    img.setSpacingBefore(Float.parseFloat(hspace));
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }

            // horizontal alignment
            if (align != null && (align.equalsIgnoreCase("left") || align.equalsIgnoreCase("right"))) {
                endElement("p");
                int ralign = Image.LEFT;
                if (align.equalsIgnoreCase("right"))
                    ralign = Image.RIGHT;
                img.setAlignment(ralign | Image.TEXTWRAP);
                Img i = null;
                boolean skip = false;
                if (interfaceProps != null) {
                    i = (Img) interfaceProps.get("img_interface");
                    if (i != null)
                        skip = i.process(img, h, cprops, document);
                }
                if (!skip)
                    document.add(img);
                cprops.removeChain(tag);
            }
            // vertical alignment (or none)
            else {
                img.setAlignment(Image.TEXTWRAP);

                float bottom = 0.0f;
                float top = img.getTop();
                float prevHeight = 0.0f;
                float prevRise = 0.0f;

                if (currentParagraph != null) {
                    ArrayList chunks = currentParagraph.getChunks();
                    Chunk sibling = null;

                    for (int k = chunks.size() - 1; k >= 0; k--) {
                        if (chunks.get(k) != null)
                            sibling = (Chunk) chunks.get(k);
                    }

                    if (sibling != null) {
                        if (sibling.hasAttributes())
                            prevRise = sibling.getTextRise();
                        prevHeight = 0.0f;
                        if (sibling.getFont() != null) {
                            prevHeight = sibling.getFont().getCalculatedSize();
                        }
                    }
                }

                if ("absMiddle".equalsIgnoreCase(align)) {
                    if (prevHeight > 0)
                        bottom += (img.getScaledHeight() / 2.0f) - (prevHeight / 2.0f);
                    else if (img.getScaledHeight() > 0)
                        bottom += img.getScaledHeight() / 2.0f;
                } else if ("middle".equalsIgnoreCase(align)) {
                    if (img.getScaledHeight() > 0)
                        bottom += (img.getScaledHeight() / 2.0f);
                } else if ("bottom".equalsIgnoreCase(align) || "baseline".equalsIgnoreCase(align)
                        || "absbottom".equalsIgnoreCase(align)) {
                    //baseline and absbottom should have some slight tweeking from bottom, but not sure what??
                } else if ("top".equalsIgnoreCase(align)) {
                    bottom += img.getScaledHeight() - prevHeight;
                } else if ("texttop".equalsIgnoreCase(align)) {
                    bottom += img.getScaledHeight() - (prevHeight - prevRise);
                }

                cprops.removeChain(tag);
                if (currentParagraph == null) {
                    currentParagraph = FactoryProperties.createParagraph(cprops);
                    bottom = 0f;
                } else if (currentParagraph.isEmpty()) {
                    bottom = 0f;
                }

                currentParagraph.setLeading(2f + bottom, 1.00f);
                currentParagraph.add(new Chunk(img, 0, 0 - bottom));
            }
            return;
        }
        if (tag.equals("blockquote")) {
            cprops.addToChain(tag, h);
            inBLOCK = true;
            if (currentParagraph != null)
                endElement("p");
            currentParagraph = FactoryProperties.createParagraph(cprops);
            currentParagraph.add(factoryProperties.createChunk("\n", cprops));
            return;
        }
        endElement("p");
        if (tag.equals("h1") || tag.equals("h2") || tag.equals("h3") || tag.equals("h4") || tag.equals("h5")
                || tag.equals("h6")) {
            if (!h.containsKey("size")) {
                int v = 8 - Integer.parseInt(tag.substring(1));
                h.put("size", Integer.toString(v));
            }
            cprops.addToChain(tag, h);
            return;
        }
        if (tag.equals("ul")) {
            if (pendingLI)
                endElement("li");
            skipText = true;
            cprops.addToChain(tag, h);
            com.lowagie.text.List list = new com.lowagie.text.List(false, 10);
            list.setListSymbol("\u2022");
            stack.push(list);
            return;
        }
        if (tag.equals("ol")) {
            if (pendingLI)
                endElement("li");
            skipText = true;
            cprops.addToChain(tag, h);
            com.lowagie.text.List list = new com.lowagie.text.List(true, 10);
            stack.push(list);
            return;
        }
        if (tag.equals("li")) {
            if (pendingLI)
                endElement("li");
            skipText = false;
            pendingLI = true;
            cprops.addToChain(tag, h);
            stack.push(FactoryProperties.createListItem(cprops));
            return;
        }
        if (tag.equals("div") || tag.equals("body")) {
            cprops.addToChain(tag, h);
            return;
        }
        if (tag.equals("pre")) {
            if (!h.containsKey("face")) {
                h.put("face", "Courier");
            }
            cprops.addToChain(tag, h);
            isPRE = true;
            return;
        }
        if (tag.equals("p")) {
            cprops.addToChain(tag, h);
            currentParagraph = FactoryProperties.createParagraph(cprops);
            if (inBLOCK) {
                currentParagraph.setIndentationLeft(currentParagraph.getIndentationLeft() + 40.0F);
            }
            return;
        }
        if (tag.equals("tr")) {
            if (pendingTR)
                endElement("tr");
            skipText = true;
            pendingTR = true;
            cprops.addToChain("tr", h);
            return;
        }
        if (tag.equals("td") || tag.equals("th")) {
            if (pendingTD)
                endElement(tag);
            skipText = false;
            pendingTD = true;
            cprops.addToChain("td", h);
            stack.push(new IncCell(tag, cprops));
            return;
        }
        if (tag.equals("table")) {
            cprops.addToChain("table", h);
            IncTable table = new IncTable(h);
            stack.push(table);
            tableState.push(new boolean[] { pendingTR, pendingTD });
            pendingTR = pendingTD = false;
            skipText = true;
            return;
        }
    } catch (Exception e) {
        e.printStackTrace();
        //throw new ExceptionConverter(e);
    }
}