/** * Example written by Bruno Lowagie in answer to the following question: * http://stackoverflow.com/questions/22095320/can-i-tell-itext-how-to-clip-text-to-fit-in-a-cell */ package sandbox.tables; import com.itextpdf.text.Document; import com.itextpdf.text.DocumentException; import com.itextpdf.text.ExceptionConverter; import com.itextpdf.text.Paragraph; import com.itextpdf.text.Rectangle; import com.itextpdf.text.pdf.ColumnText; import com.itextpdf.text.pdf.PdfContentByte; import com.itextpdf.text.pdf.PdfPCell; import com.itextpdf.text.pdf.PdfPCellEvent; import com.itextpdf.text.pdf.PdfPTable; import com.itextpdf.text.pdf.PdfTemplate; import com.itextpdf.text.pdf.PdfWriter; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import sandbox.WrapToTest; @WrapToTest public class ClipCenterCellContent { public static final String DEST = "results/tables/clip_center_cell_content.pdf"; public class CenterContent implements PdfPCellEvent { protected Paragraph content; public CenterContent(Paragraph content) { this.content = content; } public void cellLayout(PdfPCell cell, Rectangle position, PdfContentByte[] canvases) { try { PdfContentByte canvas = canvases[PdfPTable.TEXTCANVAS]; ColumnText ct = new ColumnText(canvas); ct.setSimpleColumn(new Rectangle(0, 0, position.getWidth(), -1000)); ct.addElement(content); ct.go(true); float spaceneeded = 0 - ct.getYLine(); System.out.println(String.format("The content requires %s pt whereas the height is %s pt.", spaceneeded, position.getHeight())); float offset = (position.getHeight() - spaceneeded) / 2; System.out.println(String.format("The difference is %s pt; we'll need an offset of %s pt.", -2f * offset, offset)); PdfTemplate tmp = canvas.createTemplate(position.getWidth(), position.getHeight()); ct = new ColumnText(tmp); ct.setSimpleColumn(0, offset, position.getWidth(), offset + spaceneeded); ct.addElement(content); ct.go(); canvas.addTemplate(tmp, position.getLeft(), position.getBottom()); } catch (DocumentException e) { throw new ExceptionConverter(e); } } } public static void main(String[] args) throws IOException, DocumentException { File file = new File(DEST); file.getParentFile().mkdirs(); new ClipCenterCellContent().createPdf(DEST); } public void createPdf(String dest) throws IOException, DocumentException { Document document = new Document(); PdfWriter.getInstance(document, new FileOutputStream(dest)); document.open(); PdfPTable table = new PdfPTable(5); table.setWidthPercentage(100); PdfPCell cell; for (int r = 'A'; r <= 'Z'; r++) { for (int c = 1; c <= 5; c++) { cell = new PdfPCell(); if (r == 'D' && c == 2) { cell.setCellEvent(new CenterContent(new Paragraph("D2 is a cell with more content than we can fit into the cell."))); } else { cell.addElement(new Paragraph(String.valueOf((char) r) + String.valueOf(c))); } table.addCell(cell); } } document.add(table); document.close(); } }