Examples of com.itextpdf.text.Element

com.itextpdf.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 Chapter @see Chunk @see Header @see Image @see Jpeg @see List @see ListItem @see Meta @see Paragraph @see Phrase @see Rectangle @see Section

    if (currentParagraph == null)
      return;
    if (stack.empty())
      document.add(currentParagraph);
    else {
      Element obj = stack.pop();
      if (obj instanceof TextElementArray) {
        TextElementArray current = (TextElementArray) obj;
        current.add(currentParagraph);
      }
      stack.push(obj);

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   * @since 5.0.6
   */
  public void processList() throws DocumentException {
    if (stack.empty())
      return;
    Element obj = stack.pop();
    if (!(obj instanceof com.itextpdf.text.List)) {
      stack.push(obj);
      return;
    }
    if (stack.empty())

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   * @since 5.0.6
   */
  public void processListItem() throws DocumentException {
    if (stack.empty())
      return;
    Element obj = stack.pop();
    if (!(obj instanceof ListItem)) {
      stack.push(obj);
      return;
    }
    if (stack.empty()) {
      document.add(obj);
      return;
    }
    ListItem item = (ListItem) obj;
    Element list = stack.pop();
    if (!(list instanceof com.itextpdf.text.List)) {
      stack.push(list);
      return;
    }
    ((com.itextpdf.text.List) list).add(item);

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        float width;
        float totalWidth = 0;
        int zeroWidth = 0;
    TableWrapper table = null;
    while (true) {
      Element obj = stack.pop();
      if (obj instanceof CellWrapper) {
                CellWrapper cell = (CellWrapper)obj;
                width = cell.getWidth();
                cellWidths.add(new Float(width));
                percentage |= cell.isPercentage();

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        main_loop:
        while (true) {
            if (compositeElements.isEmpty())
                return NO_MORE_TEXT;
            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.getSpacingBefore();
                        }
                        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.getSpacingAfter();
                }
                if ((status & NO_MORE_COLUMN) != 0) {
                    return NO_MORE_COLUMN;
                }
            }
            else if (element.type() == Element.LIST) {
                com.itextpdf.text.List list = (com.itextpdf.text.List)element;
                ArrayList<Element> items = list.getItems();
                ListItem item = null;
                float listIndentation = list.getIndentationLeft();
                int count = 0;
                Stack<Object[]> stack = new Stack<Object[]>();
                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.itextpdf.text.List) {
                        stack.push(new Object[]{list, new Integer(k), new Float(listIndentation)});
                        list = (com.itextpdf.text.List)obj;
                        items = list.getItems();
                        listIndentation += list.getIndentationLeft();
                        k = -1;
                        continue;
                    }
                    if (k == items.size() - 1) {
                        if (!stack.isEmpty()) {
                            Object objs[] = stack.pop();
                            list = (com.itextpdf.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.getSpacingBefore();
                        }
                        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.getSpacingAfter();
                }
                if ((status & NO_MORE_COLUMN) != 0)
                    return NO_MORE_COLUMN;
            }
            else if (element.type() == Element.PTABLE) {
              // don't write anything in the current column if there's no more space available
                if (yLine < minY || yLine > maxY)
                    return NO_MORE_COLUMN;


                // get the PdfPTable element
                PdfPTable table = (PdfPTable)element;
                // we ignore tables without a body
                if (table.size() <= table.getHeaderRows()) {
                    compositeElements.removeFirst();
                    continue;
                }


                // offsets
                float yTemp = yLine;
                if (!firstPass && listIdx == 0)
                    yTemp -= table.spacingBefore();
                float yLineWrite = yTemp;


                // don't write anything in the current column if there's no more space available
                if (yTemp < minY || yTemp > maxY)
                    return NO_MORE_COLUMN;


                // coordinates
                currentLeading = 0;
                float x1 = leftX;
                float tableWidth;
                if (table.isLockedWidth()) {
                    tableWidth = table.getTotalWidth();
                    updateFilledWidth(tableWidth);
                }
                else {
                    tableWidth = rectangularWidth * table.getWidthPercentage() / 100f;
                    table.setTotalWidth(tableWidth);
                }


                // how many header rows are real header rows; how many are footer rows?
                int headerRows = table.getHeaderRows();
                int footerRows = table.getFooterRows();
                if (footerRows > headerRows)
                    footerRows = headerRows;
                int realHeaderRows = headerRows - footerRows;
                float headerHeight = table.getHeaderHeight();
                float footerHeight = table.getFooterHeight();


                // make sure the header and footer fit on the page
                boolean skipHeader = !firstPass && table.isSkipFirstHeader() && listIdx <= headerRows;
                if (!skipHeader) {
                    yTemp -= headerHeight;
                    if (yTemp < minY || yTemp > maxY) {
                        if (firstPass) {
                            compositeElements.removeFirst();
                            continue;
                        }
                        return NO_MORE_COLUMN;
                    }
                }


                // how many real rows (not header or footer rows) fit on a page?
                int k;
                if (listIdx < headerRows)
                    listIdx = headerRows;
                if (!table.isComplete())
                  yTemp -= footerHeight;
                for (k = listIdx; k < table.size(); ++k) {
                    float rowHeight = table.getRowHeight(k);
                    if (yTemp - rowHeight < minY)
                        break;
                    yTemp -= rowHeight;
                }
                if (!table.isComplete())
                  yTemp += footerHeight;
                // either k is the first row that doesn't fit on the page (break);
                if (k < table.size()) {
                  if (table.isSplitRows() && (!table.isSplitLate() || k == listIdx && firstPass)) {
                    if (!splittedRow) {
                            splittedRow = true;
                            table = new PdfPTable(table);
                            compositeElements.set(0, table);
                            ArrayList<PdfPRow> rows = table.getRows();
                            for (int i = headerRows; i < listIdx; ++i)
                                rows.set(i, null);
                        }
                        float h = yTemp - minY;
                        PdfPRow newRow = table.getRow(k).splitRow(table, k, h);
                        if (newRow == null) {
                            if (k == listIdx)
                                return NO_MORE_COLUMN;
                        }
                        else {
                            yTemp = minY;
                            table.getRows().add(++k, newRow);
                        }
                    }
                    else if (!table.isSplitRows() && k == listIdx && firstPass) {
                        compositeElements.removeFirst();
                        splittedRow = false;
                        continue;
                    }
                    else if (k == listIdx && !firstPass && (!table.isSplitRows() || table.isSplitLate()) && (table.getFooterRows() == 0 || table.isComplete()))
                        return NO_MORE_COLUMN;
                }
                // or k is the number of rows in the table (for loop was done).
                firstPass = false;
                // we draw the table (for real now)
                if (!simulate) {
                  // set the alignment
                    switch (table.getHorizontalAlignment()) {
                        case Element.ALIGN_LEFT:
                            break;
                        case Element.ALIGN_RIGHT:
                            x1 += rectangularWidth - tableWidth;
                            break;
                        default:
                            x1 += (rectangularWidth - tableWidth) / 2f;
                    }
                    // copy the rows that fit on the page in a new table nt
                    PdfPTable nt = PdfPTable.shallowCopy(table);
                    ArrayList<PdfPRow> sub = nt.getRows();


                    // first we add the real header rows (if necessary)
                    if (!skipHeader && realHeaderRows > 0) {
                        sub.addAll(table.getRows(0, realHeaderRows));
                    }
                    else
                        nt.setHeaderRows(footerRows);
                    // then we add the real content
                    sub.addAll(table.getRows(listIdx, k));
                    // if k < table.size(), we must indicate that the new table is complete;
                    // otherwise no footers will be added (because iText thinks the table continues on the same page)
                    boolean showFooter = !table.isSkipLastFooter();
                    boolean newPageFollows = false;
                    if (k < table.size()) {
                      nt.setComplete(true);
                      showFooter = true;
                      newPageFollows = true;
                    }
                    // we add the footer rows if necessary (not for incomplete tables)
                    for (int j = 0; j < footerRows && nt.isComplete() && showFooter; ++j)
                        sub.add(table.getRow(j + realHeaderRows));


                    // we need a correction if the last row needs to be extended
                    float rowHeight = 0;
                    int index = sub.size() - 1;
                    if (showFooter) index -= footerRows;
                    PdfPRow last = sub.get(index);
                    if (table.isExtendLastRow(newPageFollows)) {
                        rowHeight = last.getMaxHeights();
                        last.setMaxHeights(yTemp - minY + rowHeight);
                        yTemp = minY;
                    }


                    // now we render the rows of the new table
                    if (canvases != null)
                        nt.writeSelectedRows(0, -1, x1, yLineWrite, canvases);
                    else
                        nt.writeSelectedRows(0, -1, x1, yLineWrite, canvas);
                    if (table.isExtendLastRow(newPageFollows)) {
                        last.setMaxHeights(rowHeight);
                    }
                }
                else if (table.isExtendLastRow() && minY > PdfPRow.BOTTOM_LIMIT)
                    yTemp = minY;
                yLine = yTemp;
                if (!(skipHeader || table.isComplete()))
                  yLine += footerHeight;
                if (k >= table.size()) {
                    yLine -= table.spacingAfter();
                    compositeElements.removeFirst();
                    splittedRow = false;
                    listIdx = 0;
                }
                else {
                    if (splittedRow) {
                        ArrayList<PdfPRow> rows = table.getRows();
                        for (int i = listIdx; i < k; ++i)
                            rows.set(i, null);
                    }
                    listIdx = k;
                    return NO_MORE_COLUMN;
                }
            }
            else if (element.type() == Element.YMARK) {
                if (!simulate) {
                    DrawInterface zh = (DrawInterface)element;
                    zh.draw(canvas, leftX, minY, rightX, maxY, yLine);
                }
                compositeElements.removeFirst();

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      }
      if (currentParagraph != null) {
        if (stack.empty())
          document.add(currentParagraph);
        else {
          Element obj = stack.pop();
          if (obj instanceof TextElementArray) {
            TextElementArray current = (TextElementArray) obj;
            current.add(currentParagraph);
          }
          stack.push(obj);
        }
      }
      currentParagraph = null;
      if (tag.equals(HtmlTags.UNORDEREDLIST)
          || tag.equals(HtmlTags.ORDEREDLIST)) {
        if (pendingLI)
          endElement(HtmlTags.LISTITEM);
        skipText = false;
        cprops.removeChain(tag);
        if (stack.empty())
          return;
        Element obj = stack.pop();
        if (!(obj instanceof com.itextpdf.text.List)) {
          stack.push(obj);
          return;
        }
        if (stack.empty())
          document.add(obj);
        else
          ((TextElementArray) stack.peek()).add(obj);
        return;
      }
      if (tag.equals(HtmlTags.LISTITEM)) {
        pendingLI = false;
        skipText = true;
        cprops.removeChain(tag);
        if (stack.empty())
          return;
        Element obj = stack.pop();
        if (!(obj instanceof ListItem)) {
          stack.push(obj);
          return;
        }
        if (stack.empty()) {
          document.add(obj);
          return;
        }
        Element list = stack.pop();
        if (!(list instanceof com.itextpdf.text.List)) {
          stack.push(list);
          return;
        }
        ListItem item = (ListItem) obj;
        ((com.itextpdf.text.List) list).add(item);
        ArrayList<Chunk> cks = item.getChunks();
        if (!cks.isEmpty())
          item.getListSymbol()
              .setFont(cks.get(0).getFont());
        stack.push(list);
        return;
      }
      if (tag.equals("div") || tag.equals("body")) {
        cprops.removeChain(tag);
        return;
      }
      if (tag.equals(HtmlTags.PRE)) {
        cprops.removeChain(tag);
        isPRE = false;
        return;
      }
      if (tag.equals("p")) {
        cprops.removeChain(tag);
        return;
      }
      if (tag.equals("h1") || tag.equals("h2") || tag.equals("h3")
          || tag.equals("h4") || tag.equals("h5") || tag.equals("h6")) {
        cprops.removeChain(tag);
        return;
      }
      if (tag.equals("table")) {
        if (pendingTR)
          endElement("tr");
        cprops.removeChain("table");
        IncTable table = (IncTable) stack.pop();
        PdfPTable tb = table.buildTable();
        tb.setSplitRows(true);
        if (stack.empty())
          document.add(tb);
        else
          ((TextElementArray) stack.peek()).add(tb);
        boolean state[] = tableState.pop();
        pendingTR = state[0];
        pendingTD = state[1];
        skipText = false;
        return;
      }
      if (tag.equals("tr")) {
        if (pendingTD)
          endElement("td");
        pendingTR = false;
        cprops.removeChain("tr");
        ArrayList<PdfPCell> cells = new ArrayList<PdfPCell>();
        IncTable table = null;
        while (true) {
          Element obj = stack.pop();
          if (obj instanceof IncCell) {
            cells.add(((IncCell) obj).getCell());
          }
          if (obj instanceof IncTable) {
            table = (IncTable) obj;

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    if (currentParagraph == null)
      return;
    if (stack.empty())
      document.add(currentParagraph);
    else {
      Element obj = stack.pop();
      if (obj instanceof TextElementArray) {
        TextElementArray current = (TextElementArray) obj;
        current.add(currentParagraph);
      }
      stack.push(obj);

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   * @since 5.0.6
   */
  public void processList() throws DocumentException {
    if (stack.empty())
      return;
    Element obj = stack.pop();
    if (!(obj instanceof com.itextpdf.text.List)) {
      stack.push(obj);
      return;
    }
    if (stack.empty())

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   * @since 5.0.6
   */
  public void processListItem() throws DocumentException {
    if (stack.empty())
      return;
    Element obj = stack.pop();
    if (!(obj instanceof ListItem)) {
      stack.push(obj);
      return;
    }
    if (stack.empty()) {
      document.add(obj);
      return;
    }
    ListItem item = (ListItem) obj;
    Element list = stack.pop();
    if (!(list instanceof com.itextpdf.text.List)) {
      stack.push(list);
      return;
    }
    ((com.itextpdf.text.List) list).add(item);

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        float width;
        float totalWidth = 0;
        int zeroWidth = 0;
    TableWrapper table = null;
    while (true) {
      Element obj = stack.pop();
      if (obj instanceof CellWrapper) {
                CellWrapper cell = (CellWrapper)obj;
                width = cell.getWidth();
                cellWidths.add(new Float(width));
                percentage |= cell.isPercentage();

View Full Code Here

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Related Classes of com.itextpdf.text.Element

com.itextpdf.text.html.simpleparser.HTMLWorker

com.itextpdf.text.pdf.ColumnText

com.itextpdf.text.pdf.FloatLayout

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