Examples of com.lowagie.text.Element

com.lowagie.text.Element
Interface for a text element.
Remark: I looked at the interface javax.swing.text.Element, but I decided to write my own text-classes for two reasons:
1. The javax.swing.text-classes may be very generic, I think they are overkill: they are to heavy for what they have to do.
2. A lot of people using iText (formerly known as rugPdf), still use JDK1.1.x. I try to keep the Java2 requirements limited to the Collection classes (I think they're really great). However, if I use the javax.swing.text classes, it will become very difficult to downgrade rugPdf.
@see Anchor @see Cell @see Chapter @see Chunk @see Header @see Image @see Jpeg @see List @see ListItem @see Meta @see Paragraph @see Phrase @see Rectangle @see Row @see Section @see Table

            return;
        }


        // sections
        if (ElementTags.SECTION.equals(name)) {
            Element previous = (Element) stack.pop();
            Section section;
            try {
                section = ElementFactory.getSection((Section) previous, attributes);
            } catch (ClassCastException cce) {
                throw new ExceptionConverter(cce);

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            }


            // phrases, anchors, lists, tables
            if (ElementTags.PHRASE.equals(name) || ElementTags.ANCHOR.equals(name) || ElementTags.LIST.equals(name)
                    || ElementTags.PARAGRAPH.equals(name)) {
                Element current = (Element) stack.pop();
                try {
                    TextElementArray previous = (TextElementArray) stack.pop();
                    previous.add(current);
                    stack.push(previous);
                } catch (EmptyStackException ese) {
                    document.add(current);
                }
                return;
            }


            // listitems
            if (ElementTags.LISTITEM.equals(name)) {
                ListItem listItem = (ListItem) stack.pop();
                List list = (List) stack.pop();
                list.add(listItem);
                stack.push(list);
            }


            // tables
            if (ElementTags.TABLE.equals(name)) {
                Table table = (Table) stack.pop();
                try {
                    TextElementArray previous = (TextElementArray) stack.pop();
                    previous.add(table);
                    stack.push(previous);
                } catch (EmptyStackException ese) {
                    document.add(table);
                }
                return;
            }


            // rows
            if (ElementTags.ROW.equals(name)) {
                ArrayList cells = new ArrayList();
                int columns = 0;
                Table table;
                Cell cell;
                while (true) {
                    Element element = (Element) stack.pop();
                    if (element.type() == Element.CELL) {
                        cell = (Cell) element;
                        columns += cell.getColspan();
                        cells.add(cell);
                    } else {
                        table = (Table) element;
                        break;
                    }
                }
                if (table.getColumns() < columns) {
                    table.addColumns(columns - table.getColumns());
                }
                Collections.reverse(cells);
                String width;
                float[] cellWidths = new float[columns];
                boolean[] cellNulls = new boolean[columns];
                for (int i = 0; i < columns; i++) {
                    cellWidths[i] = 0;
                    cellNulls[i] = true;
                }
                float total = 0;
                int j = 0;
                for (Iterator i = cells.iterator(); i.hasNext();) {
                    cell = (Cell) i.next();
                    width = cell.getWidthAsString();
                    if (cell.getWidth() == 0) {
                        if (cell.getColspan() == 1 && cellWidths[j] == 0) {
                            try {
                                cellWidths[j] = 100f / columns;
                                total += cellWidths[j];
                            } catch (Exception e) {
                                // empty on purpose
                            }
                        } else if (cell.getColspan() == 1) {
                            cellNulls[j] = false;
                        }
                    } else if (cell.getColspan() == 1 && width.endsWith("%")) {
                        try {
                            cellWidths[j] = Float.parseFloat(
                                    width.substring(0, width.length() - 1)
                                            + "f");
                            total += cellWidths[j];
                        } catch (Exception e) {
                            // empty on purpose
                        }
                    }
                    j += cell.getColspan();
                    table.addCell(cell);
                }
                float widths[] = table.getProportionalWidths();
                if (widths.length == columns) {
                    float left = 0.0f;
                    for (int i = 0; i < columns; i++) {
                        if (cellNulls[i] && widths[i] != 0) {
                            left += widths[i];
                            cellWidths[i] = widths[i];
                        }
                    }
                    if (100.0 >= total) {
                        for (int i = 0; i < widths.length; i++) {
                            if (cellWidths[i] == 0 && widths[i] != 0) {
                                cellWidths[i] = (widths[i] / left)
                                        * (100.0f - total);
                            }
                        }
                    }
                    table.setWidths(cellWidths);
                }
                stack.push(table);
            }


            // cells
            if (ElementTags.CELL.equals(name)) {
                return;
            }


            // sections
            if (ElementTags.SECTION.equals(name)) {
                stack.pop();
                return;
            }


            // chapters
            if (ElementTags.CHAPTER.equals(name)) {
                document.add((Element) stack.pop());
                return;
            }


            // the documentroot
            if (isDocumentRoot(name)) {
                try {
                    while (true) {
                        Element element = (Element) stack.pop();
                        try {
                            TextElementArray previous = (TextElementArray) stack
                                    .pop();
                            previous.add(element);
                            stack.push(previous);

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            if (!emptyCell) {
                Iterator cellIterator = store.getElements();
                Paragraph container = null;
                while (cellIterator.hasNext()) {
                    Element element = (Element) cellIterator.next();
                    // should we wrap it in a paragraph
                    if(!(element instanceof Paragraph)) {
                        if(container != null) {
                            container.add(element);
                        } else {
                            container = new Paragraph();
                            container.setAlignment(store.getHorizontalAlignment());
                            container.add(element);
                        }
                    } else {
                        if(container != null) {
                            writer.addElement(container, os);
                            container = null;
                        }
                        
                        
                        // if horizontal alignment is undefined overwrite
                        // with that of enclosing cell
                        if (element instanceof Paragraph && ((Paragraph) element).getAlignment() == Element.ALIGN_UNDEFINED) {
                            ((Paragraph) element).setAlignment(store.getHorizontalAlignment());
                        }
                        writer.addElement(element, os);
                        if (element.type() == Element.PARAGRAPH && cellIterator.hasNext()) {
                            os.write(RtfWriter.escape);
                            os.write(RtfWriter.paragraph);
                        }
                    }
                }

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        Iterator cellIterator = cell.getElements();
        Paragraph container = null;
        while(cellIterator.hasNext()) {
            try {
                Element element = (Element) cellIterator.next();
                // should we wrap it in a paragraph
                if(!(element instanceof Paragraph) && !(element instanceof List)) {
                    if(container != null) {
                        container.add(element);
                    } else {

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            out.write(listCurrentLevel);
            writeInt(out, listLevel);
        }
        out.write(openGroup);
        ListIterator listItems = list.getItems().listIterator();
        Element listElem;
        int count = 1;
        while (listItems.hasNext()) {
            listElem = (Element) listItems.next();
            if (listElem.type() == Element.CHUNK) {
                listElem = new ListItem((Chunk) listElem);
            }
            if (listElem.type() == Element.LISTITEM) {
                out.write(openGroup);
                out.write(escape);
                out.write(listTextOld);
                out.write(escape);
                out.write(paragraphDefaults);
                out.write(escape);
                out.write(fontNumber);
                if (list.isNumbered()) {
                    writeInt(out, addFont(new Font(Font.TIMES_ROMAN, Font.NORMAL, 10, new Color(0, 0, 0))));
                } else {
                    writeInt(out, fontNr);
                }
                out.write(escape);
                out.write(firstIndent);
                writeInt(out, (int) (list.getIndentationLeft() * TWIPSFACTOR * -1));
                out.write(escape);
                out.write(listIndent);
                writeInt(out, (int) ((list.getIndentationLeft() + list.getSymbolIndent()) * TWIPSFACTOR));
                out.write(escape);
                out.write(rightIndent);
                writeInt(out, (int) (list.getIndentationRight() * TWIPSFACTOR));
                out.write(delimiter);
                if (list.isNumbered()) {
                    writeInt(out, count);
                    out.write(".".getBytes());
                } else {
                    out.write(escape);
                    out.write(listBulletOld);
                }
                out.write(escape);
                out.write(tab);
                out.write(closeGroup);
                writeListElement((ListItem) listElem, out);
                count++;
            } else if (listElem.type() == Element.LIST) {
                listLevel++;
                writeList((com.lowagie.text.List) listElem, out);
                listLevel--;
                out.write(escape);
                out.write(paragraphDefaults);

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            }
            if(document.getAutogenerateTOCEntries()) {
                StringBuffer titleText = new StringBuffer();
                Iterator it = section.getTitle().iterator();
                while(it.hasNext()) {
                    Element element = (Element) it.next();
                    if(element.type() == Element.CHUNK) {
                        titleText.append(((Chunk) element).getContent());
                    }
                }
                if(titleText.toString().trim().length() > 0) {
                    RtfTOCEntry tocEntry = new RtfTOCEntry(titleText.toString());
                    tocEntry.setRtfDocument(this.document);
                    this.items.add(tocEntry);
                }
            }
            Iterator iterator = section.iterator();
            while(iterator.hasNext()) {
                Element element = (Element) iterator.next();
                RtfBasicElement rtfElement = doc.getMapper().mapElement(element);
                if(rtfElement != null) {
                    items.add(rtfElement);
                }
            }

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            }
        }
        
        for(int i = 0; i < list.getItems().size(); i++) {
            try {
                Element element = (Element) list.getItems().get(i);
                if(element.type() == Element.CHUNK) {
                    element = new ListItem((Chunk) element);
                }
                if(element instanceof ListItem) {
                    this.alignment = ((ListItem) element).getAlignment();
                }

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                this.paragraphStyle.setLineLeading((int) (paragraph.getLeading() * RtfElement.TWIPS_FACTOR));
            }
            this.paragraphStyle.setKeepTogether(paragraph.getKeepTogether());
        }        
        for(int i = 0; i < paragraph.size(); i++) {
            Element chunk = (Element) paragraph.get(i);
            if(chunk instanceof Chunk) {
                ((Chunk) chunk).setFont(baseFont.difference(((Chunk) chunk).getFont()));
            } else if(chunk instanceof RtfImage) {
                ((RtfImage) chunks.get(i)).setAlignment(this.paragraphStyle.getAlignment());
            }

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            this.lineLeading = 0;
        }
        
        RtfFont phraseFont = new RtfFont(null, phrase.getFont());
        for(int i = 0; i < phrase.size(); i++) {
            Element chunk = (Element) phrase.get(i);
            if(chunk instanceof Chunk) {
                ((Chunk) chunk).setFont(phraseFont.difference(((Chunk) chunk).getFont()));
            }
            try {
                chunks.add(doc.getMapper().mapElement(chunk));

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        boolean firstPass = adjustFirstLine;
        main_loop:
        while (true) {
            if (compositeElements.isEmpty())
                return NO_MORE_TEXT;
            Element element = (Element)compositeElements.getFirst();
            if (element.type() == Element.PARAGRAPH) {
                Paragraph para = (Paragraph)element;
                int status = 0;
                for (int keep = 0; keep < 2; ++keep) {
                    float lastY = yLine;
                    boolean createHere = false;
                    if (compositeColumn == null) {
                        compositeColumn = new ColumnText(canvas);
                        compositeColumn.setUseAscender(firstPass ? useAscender : false);
                        compositeColumn.setAlignment(para.getAlignment());
                        compositeColumn.setIndent(para.getIndentationLeft() + para.getFirstLineIndent());
                        compositeColumn.setExtraParagraphSpace(para.getExtraParagraphSpace());
                        compositeColumn.setFollowingIndent(para.getIndentationLeft());
                        compositeColumn.setRightIndent(para.getIndentationRight());
                        compositeColumn.setLeading(para.getLeading(), para.getMultipliedLeading());
                        compositeColumn.setRunDirection(runDirection);
                        compositeColumn.setArabicOptions(arabicOptions);
                        compositeColumn.setSpaceCharRatio(spaceCharRatio);
                        compositeColumn.addText(para);
                        if (!firstPass) {
                            yLine -= para.spacingBefore();
                        }
                        createHere = true;
                    }
                    compositeColumn.leftX = leftX;
                    compositeColumn.rightX = rightX;
                    compositeColumn.yLine = yLine;
                    compositeColumn.rectangularWidth = rectangularWidth;
                    compositeColumn.rectangularMode = rectangularMode;
                    compositeColumn.minY = minY;
                    compositeColumn.maxY = maxY;
                    boolean keepCandidate = (para.getKeepTogether() && createHere && !firstPass);
                    status = compositeColumn.go(simulate || (keepCandidate && keep == 0));
                    updateFilledWidth(compositeColumn.filledWidth);
                    if ((status & NO_MORE_TEXT) == 0 && keepCandidate) {
                        compositeColumn = null;
                        yLine = lastY;
                        return NO_MORE_COLUMN;
                    }
                    if (simulate || !keepCandidate)
                        break;
                    if (keep == 0) {
                        compositeColumn = null;
                        yLine = lastY;
                    }
                }
                firstPass = false;
                yLine = compositeColumn.yLine;
                linesWritten += compositeColumn.linesWritten;
                descender = compositeColumn.descender;
                if ((status & NO_MORE_TEXT) != 0) {
                    compositeColumn = null;
                    compositeElements.removeFirst();
                    yLine -= para.spacingAfter();
                }
                if ((status & NO_MORE_COLUMN) != 0) {
                    return NO_MORE_COLUMN;
                }
            }
            else if (element.type() == Element.LIST) {
                com.lowagie.text.List list = (com.lowagie.text.List)element;
                ArrayList items = list.getItems();
                ListItem item = null;
                float listIndentation = list.getIndentationLeft();
                int count = 0;
                Stack stack = new Stack();
                for (int k = 0; k < items.size(); ++k) {
                    Object obj = items.get(k);
                    if (obj instanceof ListItem) {
                        if (count == listIdx) {
                            item = (ListItem)obj;
                            break;
                        }
                        else ++count;
                    }
                    else if (obj instanceof com.lowagie.text.List) {
                        stack.push(new Object[]{list, new Integer(k), new Float(listIndentation)});
                        list = (com.lowagie.text.List)obj;
                        items = list.getItems();
                        listIndentation += list.getIndentationLeft();
                        k = -1;
                        continue;
                    }
                    if (k == items.size() - 1) {
                        if (!stack.isEmpty()) {
                            Object objs[] = (Object[])stack.pop();
                            list = (com.lowagie.text.List)objs[0];
                            items = list.getItems();
                            k = ((Integer)objs[1]).intValue();
                            listIndentation = ((Float)objs[2]).floatValue();
                        }
                    }
                }
                int status = 0;
                for (int keep = 0; keep < 2; ++keep) {
                    float lastY = yLine;
                    boolean createHere = false;
                    if (compositeColumn == null) {
                        if (item == null) {
                            listIdx = 0;
                            compositeElements.removeFirst();
                            continue main_loop;
                        }
                        compositeColumn = new ColumnText(canvas);
                        compositeColumn.setUseAscender(firstPass ? useAscender : false);
                        compositeColumn.setAlignment(item.getAlignment());
                        compositeColumn.setIndent(item.getIndentationLeft() + listIndentation + item.getFirstLineIndent());
                        compositeColumn.setExtraParagraphSpace(item.getExtraParagraphSpace());
                        compositeColumn.setFollowingIndent(compositeColumn.getIndent());
                        compositeColumn.setRightIndent(item.getIndentationRight() + list.getIndentationRight());
                        compositeColumn.setLeading(item.getLeading(), item.getMultipliedLeading());
                        compositeColumn.setRunDirection(runDirection);
                        compositeColumn.setArabicOptions(arabicOptions);
                        compositeColumn.setSpaceCharRatio(spaceCharRatio);
                        compositeColumn.addText(item);
                        if (!firstPass) {
                            yLine -= item.spacingBefore();
                        }
                        createHere = true;
                    }
                    compositeColumn.leftX = leftX;
                    compositeColumn.rightX = rightX;
                    compositeColumn.yLine = yLine;
                    compositeColumn.rectangularWidth = rectangularWidth;
                    compositeColumn.rectangularMode = rectangularMode;
                    compositeColumn.minY = minY;
                    compositeColumn.maxY = maxY;
                    boolean keepCandidate = (item.getKeepTogether() && createHere && !firstPass);
                    status = compositeColumn.go(simulate || (keepCandidate && keep == 0));
                    updateFilledWidth(compositeColumn.filledWidth);
                    if ((status & NO_MORE_TEXT) == 0 && keepCandidate) {
                        compositeColumn = null;
                        yLine = lastY;
                        return NO_MORE_COLUMN;
                    }
                    if (simulate || !keepCandidate)
                        break;
                    if (keep == 0) {
                        compositeColumn = null;
                        yLine = lastY;
                    }
                }
                firstPass = false;
                yLine = compositeColumn.yLine;
                linesWritten += compositeColumn.linesWritten;
                descender = compositeColumn.descender;
                if (!Float.isNaN(compositeColumn.firstLineY) && !compositeColumn.firstLineYDone) {
                    if (!simulate)
                        showTextAligned(canvas, Element.ALIGN_LEFT, new Phrase(item.getListSymbol()), compositeColumn.leftX + listIndentation, compositeColumn.firstLineY, 0);
                    compositeColumn.firstLineYDone = true;
                }
                if ((status & NO_MORE_TEXT) != 0) {
                    compositeColumn = null;
                    ++listIdx;
                    yLine -= item.spacingAfter();
                }
                if ((status & NO_MORE_COLUMN) != 0) {
                    return NO_MORE_COLUMN;
                }
            }
            else if (element.type() == Element.PTABLE) {
                if (yLine < minY || yLine > maxY)
                    return NO_MORE_COLUMN;
                PdfPTable table = (PdfPTable)element;
                if (table.size() <= table.getHeaderRows()) {
                    compositeElements.removeFirst();

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Related Classes of com.lowagie.text.Element

com.lowagie.text.html.HtmlWriter

com.lowagie.text.pdf.ColumnText

com.lowagie.text.pdf.PdfCell

com.lowagie.text.rtf.list.RtfList

com.lowagie.text.rtf.RtfCell

com.lowagie.text.rtf.RtfRow

com.lowagie.text.rtf.RtfWriter

com.lowagie.text.rtf.table.RtfCell

com.lowagie.text.rtf.text.RtfParagraph

com.lowagie.text.rtf.text.RtfPhrase

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