diff options
Diffstat (limited to 'pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PDFAsVisualSignatureBuilder.java')
| -rw-r--r-- | pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PDFAsVisualSignatureBuilder.java | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PDFAsVisualSignatureBuilder.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PDFAsVisualSignatureBuilder.java new file mode 100644 index 00000000..496bc0d8 --- /dev/null +++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/stamping/pdfbox/PDFAsVisualSignatureBuilder.java @@ -0,0 +1,173 @@ +package at.gv.egiz.pdfas.lib.impl.stamping.pdfbox; + +import java.io.IOException; +import java.util.ArrayList; + +import org.apache.pdfbox.cos.COSName; +import org.apache.pdfbox.pdmodel.PDDocument; +import org.apache.pdfbox.pdmodel.PDPage; +import org.apache.pdfbox.pdmodel.common.PDStream; +import org.apache.pdfbox.pdmodel.edit.PDPageContentStream; +import org.apache.pdfbox.pdmodel.font.PDType1Font; +import org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder; +import org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSignDesigner; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import at.gv.egiz.pdfas.lib.test.mains.TestPDFBoxTable; +import at.knowcenter.wag.egov.egiz.table.Entry; +import at.knowcenter.wag.egov.egiz.table.Table; + +public class PDFAsVisualSignatureBuilder extends PDVisibleSigBuilder { + + private static final Logger logger = LoggerFactory + .getLogger(TestPDFBoxTable.class); + + private static void drawTable(PDPage page, + PDPageContentStream contentStream, float x, float y, + Table abstractTable) throws IOException { + + final int rows = abstractTable.getRows().size(); + final int cols = abstractTable.getMaxCols(); + float[] colsSizes = abstractTable.getColsRelativeWith(); + int max_cols = abstractTable.getMaxCols(); + if (colsSizes == null) { + colsSizes = new float[max_cols]; + // set the column ratio for all columns to 1 + for (int cols_idx = 0; cols_idx < colsSizes.length; cols_idx++) { + colsSizes[cols_idx] = 1; + } + } + + logger.info("TOTAL Col: " + abstractTable.getWidth()); + + float total = 0; + + for (int cols_idx = 0; cols_idx < colsSizes.length; cols_idx++) { + total += colsSizes[cols_idx]; + } + + for (int cols_idx = 0; cols_idx < colsSizes.length; cols_idx++) { + colsSizes[cols_idx] = (colsSizes[cols_idx] / total) + * abstractTable.getWidth(); + } + + for (int cols_idx = 0; cols_idx < colsSizes.length; cols_idx++) { + logger.info("Col: " + cols_idx + " : " + colsSizes[cols_idx]); + } + + final float cellMargin = 5f; + final float rowHeight = 12f + 2 * cellMargin; + final float tableWidth = abstractTable.getWidth(); + final float tableHeight = rowHeight * rows; + final float colWidth = tableWidth / (float) cols; + + // draw the rows + float nexty = y; + for (int i = 0; i <= rows; i++) { + contentStream.drawLine(x, nexty, x + tableWidth, nexty); + nexty -= rowHeight; + } + + // draw the columns + float nextx = x; + for (int i = 0; i <= cols; i++) { + contentStream.drawLine(nextx, y, nextx, y - tableHeight); + if (i < colsSizes.length) { + nextx += (colsSizes != null) ? colsSizes[i] : colWidth; + } + } + + float textx = x + cellMargin; + float texty = y - 15; + for (int i = 0; i < abstractTable.getRows().size(); i++) { + ArrayList row = (ArrayList) abstractTable.getRows().get(i); + for (int j = 0; j < row.size(); j++) { + Entry cell = (Entry) row.get(j); + String text = cell.toString(); + text = "Hallo"; + COSName name = COSName.getPDFName("ANDI_TAG!"); + contentStream.beginMarkedContentSequence(COSName.ALT, name); + contentStream.beginText(); + logger.info("Writing: " + textx + " : " + texty + " = " + text); + contentStream.moveTextPositionByAmount(textx, texty); + + if (text.contains("\n")) { + String[] lines = text.split("\n"); + contentStream.appendRawCommands(10 + " TL\n"); + for (int k = 0; k < lines.length; k++) { + contentStream.drawString(lines[k]); + if (k < lines.length - 1) { + contentStream.appendRawCommands("T*\n"); + } + } + } else { + contentStream.drawString(text); + } + contentStream.endText(); + contentStream.endMarkedContentSequence(); + textx += (colsSizes != null) ? colsSizes[j] : colWidth; + } + texty -= rowHeight; + textx = x + cellMargin; + } + } + + private PDFAsVisualSignatureProperties properties; + + public PDFAsVisualSignatureBuilder(PDFAsVisualSignatureProperties properties) { + this.properties = properties; + } + + @Override + public void createTemplate(PDPage page) throws IOException { + PDDocument template = new PDDocument(); + + template.addPage(page); + getStructure().setTemplate(template); + } + + @Override + public void createInnerFormStream(PDDocument template) { + try { + PDPageContentStream stream = new PDPageContentStream(template, + getStructure().getPage()); + stream.setFont(PDType1Font.HELVETICA_BOLD, 12); + drawTable(getStructure().getPage(), stream, 0, 0, + properties.getMainTable()); + stream.close(); + PDStream innterFormStream = getStructure().getPage().getContents(); + getStructure().setInnterFormStream(innterFormStream); + logger.info("Strean of another form (inner form - it would be inside holder form) has been created"); + + } catch (Throwable e) { + e.printStackTrace(); + } + } + + @Override + public void injectAppearanceStreams(PDStream holderFormStream, PDStream innterFormStream, PDStream imageFormStream, + String imageObjectName, String imageName, String innerFormName, PDVisibleSignDesigner properties) + throws IOException + { + + // 100 means that document width is 100% via the rectangle. if rectangle + // is 500px, images 100% is 500px. + // String imgFormComment = "q "+imageWidthSize+ " 0 0 50 0 0 cm /" + + // imageName + " Do Q\n" + builder.toString(); + String imgFormComment = "q " + 100 + " 0 0 50 0 0 cm /" + imageName + " Do Q\n"; + String holderFormComment = "q 1 0 0 1 0 0 cm /" + innerFormName + " Do Q \n"; + String innerFormComment = "q 1 0 0 1 0 0 cm /" + imageObjectName + " Do Q\n"; + + logger.info("Holder Stream: " + getStructure().getInnterFormStream().getInputStreamAsString()); + + //appendRawCommands(getStructure().getInnterFormStream().createOutputStream(), + // getStructure().getInnterFormStream().getInputStreamAsString()); + + appendRawCommands(getStructure().getHolderFormStream().createOutputStream(), holderFormComment); + appendRawCommands(getStructure().getInnterFormStream().createOutputStream(), getStructure().getInnterFormStream().getInputStreamAsString()); + appendRawCommands(getStructure().getImageFormStream().createOutputStream(), imgFormComment); + logger.info("Injected apereance stream to pdf"); + + } +} |