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-/*******************************************************************************
- * <copyright> Copyright 2014 by E-Government Innovation Center EGIZ, Graz, Austria </copyright>
- * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a
- * joint initiative of the Federal Chancellery Austria and Graz University of
- * Technology.
- *
- * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
- * the European Commission - subsequent versions of the EUPL (the "Licence");
- * You may not use this work except in compliance with the Licence.
- * You may obtain a copy of the Licence at:
- * http://www.osor.eu/eupl/
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the Licence is distributed on an "AS IS" basis,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the Licence for the specific language governing permissions and
- * limitations under the Licence.
- *
- * This product combines work with different licenses. See the "NOTICE" text
- * file for details on the various modules and licenses.
- * The "NOTICE" text file is part of the distribution. Any derivative works
- * that you distribute must include a readable copy of the "NOTICE" text file.
- ******************************************************************************/
-package at.gv.egiz.pdfas.stmp.itext;
-
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.IOException;
-import java.net.MalformedURLException;
-import java.util.ArrayList;
-import java.util.HashMap;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import at.gv.egiz.pdfas.common.exceptions.PDFIOException;
-import at.gv.egiz.pdfas.common.exceptions.PdfAsException;
-import at.gv.egiz.pdfas.common.settings.ISettings;
-import at.gv.egiz.pdfas.lib.impl.stamping.IPDFStamper;
-import at.gv.egiz.pdfas.lib.impl.stamping.IPDFVisualObject;
-import at.gv.egiz.pdfas.lib.impl.status.PDFObject;
-import at.knowcenter.wag.egov.egiz.pdf.PositioningInstruction;
-import at.knowcenter.wag.egov.egiz.table.Entry;
-import at.knowcenter.wag.egov.egiz.table.Style;
-import at.knowcenter.wag.egov.egiz.table.Table;
-
-import com.lowagie.text.BadElementException;
-import com.lowagie.text.DocumentException;
-import com.lowagie.text.Element;
-import com.lowagie.text.Font;
-import com.lowagie.text.Image;
-import com.lowagie.text.Phrase;
-import com.lowagie.text.Rectangle;
-import com.lowagie.text.pdf.BaseFont;
-import com.lowagie.text.pdf.ITextStamperAccess;
-import com.lowagie.text.pdf.PdfContentByte;
-import com.lowagie.text.pdf.PdfPCell;
-import com.lowagie.text.pdf.PdfPTable;
-import com.lowagie.text.pdf.PdfReader;
-import com.lowagie.text.pdf.PdfStamper;
-import com.lowagie.text.pdf.PdfTemplate;
-
-public class ITextStamper implements IPDFStamper {
-
- private static final Logger logger = LoggerFactory.getLogger(ITextStamper.class);
-
- /**
- * The default font definition
- */
- private static Font DEFAULT_FONT = new Font(Font.HELVETICA, 8, Font.NORMAL);
-
- private ISettings settings;
-
- /**
- * This method visualize an abstract table into a corresponding pdf table. The
- * new pdf table is redered and get the style information from the abstract
- * cell.
- *
- * @param abstractTable
- * the abstract table definition
- * @return the new redererd pdf table cell
- * @throws PdfAsException
- * ErrorCode:220, 221, 222, 223
- * @see com.lowagie.text.pdf.PdfPTable
- * @see at.knowcenter.wag.egov.egiz.table.Table
- */
- private PdfPTable renderTable(Table abstractTable) throws PdfAsException
- {
- if (abstractTable == null)
- {
- PdfAsException pde = new PdfAsException("error.pdf.stamp.03");
- throw pde;
- }
- PdfPTable pdf_table = null;
- float[] cols = abstractTable.getColsRelativeWith();
- int max_cols = abstractTable.getMaxCols();
- if (cols == null)
- {
- cols = new float[max_cols];
- // set the column ratio for all columns to 1
- for (int cols_idx = 0; cols_idx < cols.length; cols_idx++)
- {
- cols[cols_idx] = 1;
- }
- }
- pdf_table = new PdfPTable(cols);
- pdf_table.setWidthPercentage(abstractTable.getWidth());
- Style table_style = abstractTable.getStyle();
- setCellStyle(pdf_table.getDefaultCell(), table_style, Entry.TYPE_TABLE);
-
- @SuppressWarnings("rawtypes")
- ArrayList rows = abstractTable.getRows();
- for (int row_idx = 0; row_idx < rows.size(); row_idx++)
- {
- @SuppressWarnings("rawtypes")
- ArrayList row = (ArrayList) rows.get(row_idx);
- logger.debug("## Row:" + row_idx + " ## of table:" + abstractTable.getName());
- for (int entry_idx = 0; entry_idx < row.size(); entry_idx++)
- {
- Entry cell = (Entry) row.get(entry_idx);
- // 03.11.2010 changed by exthex - swapped the two params, was probably a bug
- Style inherit_style = Style.doInherit(table_style, cell.getStyle());
- cell.setStyle(inherit_style);
- logger.debug(cell.toString());
- PdfPCell pdf_cell = renderCell(cell);
- if (cell.getColSpan() > 1)
- {
- pdf_cell.setColspan(cell.getColSpan());
- }
- if (cell.isNoWrap())
- {
- pdf_cell.setNoWrap(true);
- }
- // System.err.println("valign:" + pdf_cell.getVerticalAlignment() + "
- // halign:" +
- // pdf_cell.getHorizontalAlignment());
- pdf_table.addCell(pdf_cell);
- }
- pdf_table.completeRow();
- }
- logger.debug("render table:" + abstractTable.getName());
- return pdf_table;
- }
-
- /**
- * Map the style align definitions to IText's align statements
- */
- private static HashMap<String, Integer> alignMap_ = new HashMap<String, Integer>();
-
- /**
- * Map the font definitions to IText's font statements
- */
- private static HashMap<String, Integer> fontStyleMap_ = new HashMap<String, Integer>();
-
- private static HashMap<String, Font> fontMap_ = new HashMap<String, Font>();
-
- static {
- initStyleMaps();
- }
-
- /**
- * This method initialize the style maps. It maps the style style definitions
- * to IText styles.
- */
- private static void initStyleMaps()
- {
- alignMap_.put(Style.TOP, new Integer(Element.ALIGN_TOP));
- alignMap_.put(Style.MIDDLE, new Integer(Element.ALIGN_MIDDLE));
- alignMap_.put(Style.BOTTOM, new Integer(Element.ALIGN_BOTTOM));
- alignMap_.put(Style.LEFT, new Integer(Element.ALIGN_LEFT));
- alignMap_.put(Style.CENTER, new Integer(Element.ALIGN_CENTER));
- alignMap_.put(Style.RIGHT, new Integer(Element.ALIGN_RIGHT));
-
- //BaseFont.createFont()
- fontStyleMap_.put(Style.HELVETICA, new Integer(Font.HELVETICA));
- fontStyleMap_.put(Style.TIMES_ROMAN, new Integer(Font.TIMES_ROMAN));
- fontStyleMap_.put(Style.COURIER, new Integer(Font.COURIER));
- fontStyleMap_.put(Style.NORMAL, new Integer(Font.NORMAL));
- fontStyleMap_.put(Style.BOLD, new Integer(Font.BOLD));
- fontStyleMap_.put(Style.ITALIC, new Integer(Font.ITALIC));
- fontStyleMap_.put(Style.BOLDITALIC, new Integer(Font.BOLDITALIC));
- fontStyleMap_.put(Style.UNDERLINE, new Integer(Font.UNDERLINE));
- fontStyleMap_.put(Style.STRIKETHRU, new Integer(Font.STRIKETHRU));
- }
-
- /**
- * This method maps the table cell definitions to the pdfCell element.
- *
- * @param pdfCell
- * the pdf cell to be styled
- * @param cellStyle
- * the abstract style definition
- * @param type
- * type of the cell to render - the appropriate style will be set
- * @see com.lowagie.text.pdf.PdfPCell
- * @see at.knowcenter.wag.egov.egiz.table.Style
- */
- private void setCellStyle(PdfPCell pdfCell, Style cellStyle, int type)
- {
- if (cellStyle != null)
- {
- if (cellStyle.getBgColor() != null)
- {
- pdfCell.setBackgroundColor(cellStyle.getBgColor());
- }
- pdfCell.setPadding(cellStyle.getPadding());
- //exthex - fix for not exactly vertically centered text
- pdfCell.setUseAscender(true);
-
- if (cellStyle.getBorder() > 0)
- {
- pdfCell.setBorderWidth(cellStyle.getBorder());
- }
- else
- {
- pdfCell.setBorder(0);
- }
- int align = -1;
- if (type == Entry.TYPE_VALUE && cellStyle.getValueVAlign() != null)
- align = ((Integer) alignMap_.get(cellStyle.getValueVAlign())).intValue();
- //Note: to change the default valign of images to those of values, change the if construct below
- else if (type == Entry.TYPE_IMAGE && cellStyle.getImageVAlign() != null)
- align = ((Integer) alignMap_.get(cellStyle.getImageVAlign())).intValue();
- else if (cellStyle.getVAlign() != null)
-
- if(alignMap_.get(cellStyle.getVAlign()) == null) {
- align = -1;
- } else {
- align = alignMap_.get(cellStyle.getVAlign()).intValue();
- }
- if (align != -1)
- pdfCell.setVerticalAlignment(align);
-
- align = -1;
- if (type == Entry.TYPE_VALUE && cellStyle.getValueHAlign() != null)
- align = ((Integer) alignMap_.get(cellStyle.getValueHAlign())).intValue();
- //Note: to change the default halign of images to those of values, change the if construct below
- else if (type == Entry.TYPE_IMAGE && cellStyle.getImageHAlign() != null)
- align = ((Integer) alignMap_.get(cellStyle.getImageHAlign())).intValue();
- else if (cellStyle.getHAlign() != null)
- align = ((Integer) alignMap_.get(cellStyle.getHAlign())).intValue();
- if (align != -1)
- pdfCell.setHorizontalAlignment(align);
- }
- }
-
- /**
- * Creates a custom
- * @param fontString
- * @return
- * @throws PdfAsException
- */
- private Font getCellTrueTypeFont(String fontString) throws PdfAsException {
- float fontSize=8;
- String fontName = fontString.replaceFirst("TTF:", "");
- String[] split = fontName.split(",");
- if(split.length>1)
- {
- fontName = split[0].trim();
- try
- {
- fontSize = Float.parseFloat(split[1].trim());
- }catch (NumberFormatException e)
- {
- logger.error("Unable to parse fontsize:"+fontString);
- }
- }
- logger.debug("TrueType Font detected:"+fontName +" ("+fontSize+")");
-
- try {
- Font font = (Font) fontMap_.get(fontString);
-
- // TODO: implement FONT resources via settings path!
- if (font == null) {
- logger.debug("Font \"" + fontString + "\" not in cache. Instantiating font.");
- String fontPath = this.settings.getWorkingDirectory() + File.separator + "fonts" + File.separator + fontName;
- logger.debug("Instantiating \"" + fontPath + "\".");
-
- font = new Font(BaseFont.createFont(fontPath, BaseFont.WINANSI, true), fontSize);
- fontMap_.put(fontString, font);
- }
- return font;
- } catch (DocumentException e) {
- throw new PdfAsException("error.pdf.stamp.01", e);
- } catch (IOException e) {
- throw new PdfAsException("error.pdf.stamp.01", e);
- }
- }
-
-
- /**
- * This method maps the cell font definition to the iText Font Object
- *
- * @param fontString
- * @return the corresponding iText Font Object
- * @see com.lowagie.text.Font
- */
- private Font getCellFont(String fontString)
- {
- Font font = DEFAULT_FONT;
- if (fontString == null)
- {
- return font;
- }
- Object cache_font = fontMap_.get(fontString);
- if (cache_font != null)
- {
- return (Font) cache_font;
- }
- String[] font_arr = fontString.split(",");
- if (font_arr.length != 3)
- {
- return font;
- }
- Object font_face = fontStyleMap_.get(font_arr[0]);
- if (font_face == null)
- {
- return font;
- }
- Object font_weight = fontStyleMap_.get(font_arr[2]);
- if (font_weight == null)
- {
- return font;
- }
- int face = ((Integer) font_face).intValue();
- float height = Float.parseFloat(font_arr[1]);
- int weight = ((Integer) font_weight).intValue();
-
- font = new Font(face, height, weight);
- //fontMap_.put(fontString, font);
- return font;
- }
-
- /**
- * This method visualize an abstract table cell into a corresponding pdf table
- * cell. The new pdf table cell is redered and get the style information from
- * the abstract cell. Following types can be rendered:
- * <ul>
- * <li>text statements</li>
- * <li>images</li>
- * <li>tables</li>
- * </ul>
- *
- * @param abstractCell
- * the abstract cell definition
- * @return the new redererd pdf table cell
- * @throws PdfAsException
- * ErrorCode:220, 221, 222
- * @see com.lowagie.text.pdf.PdfPCell
- * @see at.knowcenter.wag.egov.egiz.table.Entry
- */
- private PdfPCell renderCell(Entry abstractCell) throws PdfAsException
- {
- // TODO: read if signature should be PDF/A compatible!!
- boolean pdfaValid = false;//PDFASUtils.isPdfAEnabled(sigObject_.getSignatureTypeDefinition().getType());
-
- PdfPCell pdf_cell = null;
- Style cell_style = abstractCell.getStyle();
- boolean isValue = true;
- switch (abstractCell.getType())
- {
- case Entry.TYPE_CAPTION:
- isValue = false;
- case Entry.TYPE_VALUE:
- String text = (String) abstractCell.getValue();
- if (text == null)
- {
- text = "";
- }
- String font_string = cell_style.getFont();
- if (abstractCell.getType() == Entry.TYPE_VALUE && cell_style.getValueFont() != null)
- {
- font_string = cell_style.getValueFont();
- }
-
- logger.trace("using cell font: "+font_string);
-
- Font cell_font;
- if(font_string.startsWith("TTF:"))
- {
- cell_font = getCellTrueTypeFont(font_string);
- }
- else
- {
- if (pdfaValid) {
- throw new PdfAsException("error.pdf.stamp.02");
- }
- cell_font = getCellFont(font_string);
-
- }
- //TODO: check and maybe remove ...
- // exthex
- //if (pdfaValid && abstractCell.getType() == Entry.TYPE_VALUE) {
- // SubsetLocal.addNonSubsetFont(cell_font.getBaseFont());
- //}
- Phrase text_phrase = new Phrase(text, cell_font);
- pdf_cell = new PdfPCell(text_phrase);
- setCellStyle(pdf_cell, cell_style, (isValue?Entry.TYPE_VALUE:Entry.TYPE_CAPTION));
- break;
- case Entry.TYPE_IMAGE:
- try
- {
- String img_ref = (String) abstractCell.getValue();
- // fixed by tknall start
- File img_file = new File(img_ref);
- if (!img_file.isAbsolute()) {
- logger.debug("Image file declaration is relative. Prepending path of resources directory.");
- img_file = new File(settings.getWorkingDirectory() + File.separator + img_ref);
- } else {
- logger.debug("Image file declaration is absolute. Skipping file relocation.");
- }
-
- if (!img_file.exists())
- {
- logger.debug("Image file \"" + img_file.getCanonicalPath() + "\" doesn't exist.");
- throw new PdfAsException("error.pdf.stamp.04");
- }
- Image image = Image.getInstance(img_file.getCanonicalPath());
- logger.debug("Using image file \"" + img_file.getCanonicalPath() + "\".");
-
- image.scaleToFit(80.0f, 80.0f);
- boolean fit = true;
- Style.ImageScaleToFit istf = cell_style.getImageScaleToFit();
- if (istf != null)
- {
- image.scaleToFit(istf.getWidth(), istf.getHeight());
- fit = false;
- }
- pdf_cell = new PdfPCell(image, fit);
- setCellStyle(pdf_cell, cell_style, Entry.TYPE_IMAGE);
- }
- catch (BadElementException e)
- {
- logger.error("BadElementException:" + e.getMessage());
- PdfAsException pde = new PdfAsException("error.pdf.stamp.05", e);
- throw pde;
- }
- catch (MalformedURLException e)
- {
- logger.error("MalformedURLException:" + e.getMessage());
- PdfAsException pde = new PdfAsException("error.pdf.stamp.05", e);
- throw pde;
- }
- catch (IOException e)
- {
- logger.error("IOException:" + e.getMessage());
- PdfAsException pde = new PdfAsException("error.pdf.stamp.05", e);
- throw pde;
- }
- break;
- case Entry.TYPE_TABLE:
- Table table = (Table) abstractCell.getValue();
- // inherit the style from the parent table
- Style inherit_style = Style.doInherit(table.getStyle(), cell_style);
- table.setStyle(inherit_style);
- PdfPTable pdf_table = renderTable(table);
- pdf_cell = new PdfPCell(pdf_table);
- // The default new PdfPCell has a default border of 15.
- // For blocks without border and subtables this results
- // in a border to be drawn around the cell.
- // ==> no border on default
- pdf_cell.setBorder(0);
- break;
- }
- return pdf_cell;
- }
-
- public IPDFVisualObject createVisualPDFObject(PDFObject pdf, Table table) {
-
- // TODO: Adapt PDFSignatureObjectIText to render PDFPTable to iTextVisualObject from table
- try {
- PdfPTable pdfPTable = renderTable(table);
-
- ITextVisualObject iTextVisualObject = new ITextVisualObject(pdfPTable);
-
- return iTextVisualObject;
- } catch (PdfAsException e) {
- e.printStackTrace();
- return null;
- }
- }
-
- public byte[] writeVisualObject(IPDFVisualObject visualObject, PositioningInstruction positioningInstruction,
- byte[] pdfData, String placeholderName) throws PdfAsException {
- try {
-
- ITextVisualObject object = null;
- if(visualObject instanceof ITextVisualObject) {
- object = (ITextVisualObject)visualObject;
- }
-
- if(object == null) {
- throw new PdfAsException("error.pdf.stamp.06");
- }
-
- PdfReader reader = new PdfReader(pdfData);
-
- ByteArrayOutputStream baos = new ByteArrayOutputStream();
-
- PdfStamper stamper = new PdfStamper(reader, baos, reader.getPdfVersion(), true);
-
- int pages = reader.getNumberOfPages();
- int targetPage = positioningInstruction.getPage();
-
- // TODO: maybe add new page ...
- if(positioningInstruction.isMakeNewPage()) {
- Rectangle rect = reader.getPageSize(pages);
- stamper.insertPage(pages + 1, new Rectangle(rect));
- targetPage = pages + 1;
- }
-
- if (positioningInstruction.getPage() < 1 ||
- positioningInstruction.getPage() > stamper.getReader().getNumberOfPages())
- {
- logger.error("The provided page (=" +
- positioningInstruction.getPage() + ") is out of range.");
- throw new PdfAsException("error.pdf.stamp.07");
- }
-
- if(placeholderName != null) {
- ITextStamperAccess.replacePlaceholder(stamper, targetPage, placeholderName);
- }
-
- PdfContentByte content = stamper.getOverContent(targetPage);
-
- PdfPTable table = object.getTable();
-
- logger.info("Positioning: X " + positioningInstruction.getX() + " Y " + positioningInstruction.getY());
- logger.info("Positioning: P " + positioningInstruction.getPage());
- logger.info("Visual Object: " + visualObject.getWidth() + " x " + visualObject.getHeight());
-
- PdfTemplate table_template = content.createTemplate(table.getTotalWidth(), table.getTotalHeight());
-
- /* table.writeSelectedRows(0, -1, positioningInstruction.getX(),
- positioningInstruction.getY(), content);
- */
- table.writeSelectedRows(0, -1, 0,
- table.getTotalHeight(), table_template);
- //table_template.
-
- float rotate = positioningInstruction.getRotation();
-
- if(rotate != 0) {
- //set up the affine transform
- float angle = (float)(-rotate * (Math.PI / 180));
- float fxScale = (float)(Math.cos(angle));
- float fyScale = (float)(Math.cos(angle));
- float fxRote = (float)(-Math.sin(angle));
- float fyRote = (float)(Math.sin(angle));
-
- content.addTemplate(table_template, fxScale, fxRote, fyRote, fyScale,
- positioningInstruction.getX(),
- positioningInstruction.getY() - table.getTotalHeight());
- } else {
- content.addTemplate(table_template, positioningInstruction.getX(),
- positioningInstruction.getY() - table.getTotalHeight());
- }
-
-
-
- stamper.close();
-
- baos.close();
-
- return baos.toByteArray();
-
- } catch (IOException e) {
- logger.error(e.getMessage(), e);
- throw new PDFIOException("error.pdf.stamp.08", e);
- } catch (DocumentException e) {
- logger.error(e.getMessage(), e);
- throw new PdfAsException("error.pdf.stamp.08", e);
- }
- }
-
- public void setSettings(ISettings settings) {
- this.settings = settings;
- }
-}
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