Examples with Element com.lowagie.text.Element used on opensource projects

Example 11 with Element

use of com.lowagie.text.Element in project OpenPDF by LibrePDF.

the class VerticalPositionMark method getChunks.

/**
 * @see com.lowagie.text.Element#getChunks()
 */
public ArrayList<Element> getChunks() {
    ArrayList<Element> list = new ArrayList<>();
    list.add(new Chunk(this, true));
    return list;
}

Example 12 with Element

use of com.lowagie.text.Element in project OpenPDF by LibrePDF.

the class ColumnText method goComposite.

protected int goComposite(boolean simulate) throws DocumentException {
    if (!rectangularMode)
        throw new DocumentException(MessageLocalization.getComposedMessage("irregular.columns.are.not.supported.in.composite.mode"));
    linesWritten = 0;
    descender = 0;
    boolean firstPass = adjustFirstLine;
    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);
                    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(para.getRunDirection() == PdfWriter.RUN_DIRECTION_DEFAULT ? runDirection : para.getRunDirection());
                    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;
            if (compositeColumn != null) {
                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.lowagie.text.List list = (com.lowagie.text.List) element;
            java.util.List<Element> items = list.getItems();
            ListItem item = null;
            float listIndentation = list.getIndentationLeft();
            int count = 0;
            Stack<Object[]> 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, k, 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 = stack.pop();
                        list = (com.lowagie.text.List) objs[0];
                        items = list.getItems();
                        k = (Integer) objs[1];
                        listIndentation = (Float) objs[2];
                    }
                }
            }
            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);
                    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 != null && 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 && item != null) {
                    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;
                if (item != null) {
                    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);
                        List<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) {
                    return NO_MORE_COLUMN;
                } 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);
                List<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) {
                    List<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();
        } else
            compositeElements.removeFirst();
    }
}

Example 13 with Element

use of com.lowagie.text.Element in project OpenPDF by LibrePDF.

the class SAXiTextHandler method handleEndingTags.

/**
 * This method deals with the starting tags.
 *
 * @param name the name of the tag
 */
public void handleEndingTags(String name) {
    if (ElementTags.IGNORE.equals(name)) {
        ignore = false;
        return;
    }
    if (ignore)
        return;
    // tags that don't have any content
    if (isNewpage(name) || ElementTags.ANNOTATION.equals(name) || ElementTags.IMAGE.equals(name) || isNewline(name)) {
        return;
    }
    try {
        // titles of sections and chapters
        if (ElementTags.TITLE.equals(name)) {
            Paragraph current = (Paragraph) stack.pop();
            if (currentChunk != null) {
                current.add(currentChunk);
                currentChunk = null;
            }
            Section previous = (Section) stack.pop();
            previous.setTitle(current);
            stack.push(previous);
            return;
        }
        // all other endtags
        if (currentChunk != null) {
            TextElementArray current;
            try {
                current = (TextElementArray) stack.pop();
            } catch (EmptyStackException ese) {
                current = new Paragraph();
            }
            current.add(currentChunk);
            stack.push(current);
            currentChunk = null;
        }
        // chunks
        if (ElementTags.CHUNK.equals(name)) {
            return;
        }
        // phrases, anchors, lists, tables
        if (ElementTags.PHRASE.equals(name) || ElementTags.ANCHOR.equals(name) || ElementTags.LIST.equals(name) || ElementTags.PARAGRAPH.equals(name)) {
            Element current = 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)) {
            java.util.List<Cell> cells = new ArrayList<>();
            int columns = 0;
            Table table;
            Cell cell;
            while (true) {
                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 = 0.0f;
            int j = 0;
            for (Cell value : cells) {
                cell = value;
                width = cell.getWidthAsString();
                if (cell.getWidth() == 0) {
                    if (cell.getColspan() == 1 && cellWidths[j] == 0) {
                        try {
                            cellWidths[j] = 100.0f / 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];
                        cellNulls[j] = false;
                    } 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(stack.pop());
            return;
        }
        // the documentroot
        if (isDocumentRoot(name)) {
            try {
                while (true) {
                    Element element = stack.pop();
                    try {
                        TextElementArray previous = (TextElementArray) stack.pop();
                        previous.add(element);
                        stack.push(previous);
                    } catch (EmptyStackException es) {
                        document.add(element);
                    }
                }
            } catch (EmptyStackException ese) {
            // empty on purpose
            }
            if (controlOpenClose) {
                document.close();
            }
        }
    } catch (DocumentException de) {
        throw new ExceptionConverter(de);
    }
}

Example 14 with Element

use of com.lowagie.text.Element in project OpenPDF by LibrePDF.

the class ParseNestedHtmlList method printElement.

private static void printElement(String depth, List<Element> elements) {
    for (Element element : elements) {
        System.out.println(depth + "- element.getClass() = " + element.getClass());
        if (element instanceof com.lowagie.text.List) {
            com.lowagie.text.List elementList = (com.lowagie.text.List) element;
            printElement(depth + "    ", elementList.getItems());
        } else {
            System.out.println(depth + "  element = " + element.getChunks().get(0).toString());
        }
    }
}

Example 15 with Element

use of com.lowagie.text.Element in project OpenPDF by LibrePDF.

the class ParseNestedHtmlList method main.

/**
 * Generates an HTML page with the text 'Hello World'
 *
 * @param args no arguments needed here
 */
public static void main(String[] args) {
    System.out.println("Parse Nested HTML List");
    try {
        final String htmlText = "<html>" + "<body>" + "<p>What should you say?</p>" + "<ul>" + "  <li>Hello</li>" + "  <li>World</li>" + "</ul>" + "<ol>" + "  <li>Element-1" + "    <ol>" + "      <li>Element-1-1</li>" + "      <li>Element-1-2</li>" + "    </ol>" + "  </li>" + "  <li>Element-2" + "    <ol>" + "      <li>Element-2-1" + "        <ol>" + "          <li>Element-2-1-1" + "            <ol>" + "              <li>Element-2-1-1-1</li>" + "              <li>Element-2-1-1-2</li>" + "            </ol>" + "          </li>" + "          <li>Element-2-1-2" + "            <ol>" + "              <li>Element-2-1-2-1</li>" + "              <li>Element-2-1-2-2</li>" + "            </ol>" + "          </li>" + "        </ol>" + "      </li>" + "      <li>Element-2-2</li>" + "    </ol>" + "  </li>" + "</ol>" + "</body>" + "</html>";
        final StringReader reader = new StringReader(htmlText);
        final StyleSheet styleSheet = new StyleSheet();
        final Map<String, Object> interfaceProps = new HashMap<>();
        final List<Element> elements = HTMLWorker.parseToList(reader, styleSheet, interfaceProps);
        printElement("", elements);
    } catch (DocumentException | IOException de) {
        System.err.println(de.getMessage());
    }
}