1 files changed, 25 insertions, 3 deletions
diff --git a/src/main/java/it/alessandroiezzi/simplyreports/pdf/PDFTable.java b/src/main/java/it/alessandroiezzi/simplyreports/pdf/PDFTable.java
index 39ee50e..ad44916 100644
--- a/src/main/java/it/alessandroiezzi/simplyreports/pdf/PDFTable.java
+++ b/src/main/java/it/alessandroiezzi/simplyreports/pdf/PDFTable.java
@@ -19,8 +19,11 @@
 
 package it.alessandroiezzi.simplyreports.pdf;
 
-import com.lowagie.text.DocumentException;
+import com.lowagie.text.*;
+import com.lowagie.text.Font;
 import com.lowagie.text.pdf.*;
+
+import java.awt.*;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
@@ -30,13 +33,15 @@ import java.util.function.Supplier;
 public abstract class PDFTable<E> extends PDFEntity<PdfPTable> {
     private final List<E> entities;
     private final List<PdfTableCell> cells = new ArrayList<>();
-    private int[] widths = null;
+    private final int[] widths;
     private PDFTableHeader header;
     private PDFTableFooter footer;
+    private final String[] columnTitles;
 
-    public PDFTable(List<E> entities, int...widths) {
+    public PDFTable(List<E> entities, String[] columnTitles, int...widths) {
         this.entities = entities;
         this.widths = widths;
+        this.columnTitles = columnTitles;
         generateSignature();
     }
 
@@ -79,6 +84,8 @@ public abstract class PDFTable<E> extends PDFEntity<PdfPTable> {
 
             if (widths != null && widths.length > 0)
                 table.setWidths(widths);
+            else
+                throw new IllegalArgumentException("widths is mandatory!");
 
             for (E entity : this.entities) {
                 mapRow(entity);
@@ -91,6 +98,21 @@ public abstract class PDFTable<E> extends PDFEntity<PdfPTable> {
                 table.addCell(header.generate(writer));
             }
 
+            if (columnTitles != null && columnTitles.length > 0) {
+                for (String columnTitle : columnTitles) {
+                    Font f = new Font(Font.HELVETICA, 8.0f, Font.BOLD, Color.BLACK);
+                    Chunk c = new Chunk(columnTitle, f);
+                    Paragraph p = new Paragraph(c);
+                    p.setAlignment(Element.ALIGN_CENTER);
+                    PdfPCell cell = new PdfPCell();
+                    cell.setUseAscender(true);
+                    cell.setPadding(5);
+                    cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
+                    cell.addElement(p);
+                    table.addCell(cell);
+                }
+            }
+
             for (PdfTableCell cell : cells) {
                 table.addCell(cell.getValue());
             }