added method chaining for header definition

pdf/src/main/java/de/muehlencord/shared/pdf/TableContent.java

@@ -19,42 +19,31 @@ public class TableContent extends Content {
     private final Font headerFont;
 
     @Expose
-    private List<Text> header;
+    private TableHeader header;
-    @Expose
+    
-    private List<Integer> colSizes = null;
-
     @Expose
     private List<List<Text>> data = null;
     
     public TableContent (PDFDocument doc, Font hf) {
         super (doc);
+        this.header = new TableHeader();
         this.headerFont = hf; 
+        this.data = new ArrayList<>();
+        
     }
 
     public TableContent(PDFDocument doc, Font hf, int x, int y) {
         super(doc, x, y);
+        this.header = new TableHeader();
         this.headerFont = hf;
+        this.data = new ArrayList<>();
     }
-
+    
-    public void setHeader(List<String> headers, List<Integer> cols) {
-        header = new ArrayList<>();
-        headers.stream().forEach((cellText) -> {
-            header.add(new Text(cellText));
-        });
-        colSizes = new ArrayList<>();
-        cols.stream().forEach((col) -> {
-            colSizes.add(col);
-        });
-    }
-
     public void addLine(String... values) {
         addLine(Arrays.asList(values));
     }
 
     public void addLine(List<String> values) {
-        if (data == null) {
-            data = new ArrayList<>();
-        }
         List<Text> newLine = new ArrayList<>();
         values.stream().forEach((cellText) -> {
             newLine.add(new Text(cellText));
@@ -69,8 +58,8 @@ public class TableContent extends Content {
         PDFont hFont = document.getFont(headerFont.getFontName());
         PDFont standardFont = document.getFont(document.getStandardFont().getFontName());
         int xOffSet = 0;
-        for (int i = 0; i < colSizes.size(); i++) {
+        for (int i = 0; i < getHeaders().size(); i++) {
-            xOffSet -= colSizes.get(i);
+            xOffSet -= header.getColumnSize(i); 
         }
         int yOffset = document.getStandardFont().getFontSize() * -1 - document.getStandardFont().getPadding();
         int currentX = x;
@@ -79,8 +68,11 @@ public class TableContent extends Content {
         cos.setFont(hFont, headerFont.getFontSize());
         cos.newLineAtOffset(x, y);
         for (int i = 0; i < header.size(); i++) {
-            cos.showText(header.get(i).getText());
+            cos.showText(header.getHeader(i).getText());
-            cos.newLineAtOffset(colSizes.get(i), 0);
+            cos.newLineAtOffset(header.getColumnSize(i), 0);
+        }
+        if (data.size() == 0) {
+            currentY -= headerFont.getFontSize() - headerFont.getPadding();
         }
 
         cos.setFont(standardFont, document.getStandardFont().getFontSize());
@@ -90,7 +82,7 @@ public class TableContent extends Content {
             currentY  += yOffset;
             for (int colNo = 0; colNo < currentRow.size(); colNo++) {
                 cos.showText(currentRow.get(colNo).getText());
-                cos.newLineAtOffset(colSizes.get(colNo), 0);
+                cos.newLineAtOffset(header.getColumnSize(colNo), 0);
             }
         }
         cos.endText();       
@@ -103,4 +95,7 @@ public class TableContent extends Content {
         return headerFont;
     }
 
+    public TableHeader getHeaders() {
+        return header;
+    }            
 }

pdf/src/main/java/de/muehlencord/shared/pdf/TableHeader.java

@@ -0,0 +1,48 @@
+package de.muehlencord.shared.pdf;
+
+import com.google.gson.annotations.Expose;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ *
+ * @author joern.muehlencord
+ */
+public class TableHeader {
+
+    @Expose
+    private final List<Text> headers;
+
+    @Expose
+    private final List<Integer> colSizes;
+
+    public TableHeader() {
+        headers = new ArrayList<>();
+        colSizes = new ArrayList<>();
+    }
+
+    public TableHeader add(Text header, int colSize) {
+        headers.add(header);
+        colSizes.add(colSize);
+        return this;
+    }
+
+    public TableHeader add(String headerText, int colSize) {
+        headers.add(new Text(headerText));
+        colSizes.add(colSize);
+        return this;
+    }
+
+    public int size() {
+        return headers.size();
+    }
+
+    public int getColumnSize(int pos) {
+        return colSizes.get(pos);
+    }
+
+    public Text getHeader(int pos) {
+        return headers.get(pos);
+    }
+
+}

pdf/src/test/java/de/muehlencord/shared/pdf/PDFDocumentTest.java

@@ -54,13 +54,9 @@ public class PDFDocumentTest {
         doc.addContent(informationContent);
                 
         TableContent informationContent2 = new TableContent (doc, doc.getStandardFont());
-        List<String> headers = new ArrayList<>();
+        informationContent2.getHeaders()
-        headers.add("Kunden-Nr");
+                .add("Kunden-Nr", 100)
-        headers.add("${customerNumber}");  
+                .add("${customerNumber}", 100);
-        List<Integer> colSize = new ArrayList<>();
-        colSize.add (100);
-        colSize.add (100);         
-        informationContent2.setHeader(headers, colSize);
         informationContent2.addLine ("Rechnungs-Nr.:", "${invoiceNumber}");
         informationContent2.addLine ("Ausgabe: ", "Dezember"); 
         informationContent2.addLine ("Rechnungsdatum:", "${invoiceDate?date}"); 
@@ -69,9 +65,18 @@ public class PDFDocumentTest {
         TextContent invoiceInfoInformation = new TextContent(doc, 40, 442, "Sehr geehrter Anzeigenkunde, ")
                 .addLine()
                 .addLine()
-                .addLine("Wir danken für den Auftrag und bitten um Erledigung der folgenden Anzeigenabrechnung");
+                .addLine("Wir danken für den Auftrag und bitten um Erledigung der folgenden Anzeigenabrechnung")
+                .addLine();
         doc.addContent(invoiceInfoInformation);
         
+        TableContent invoiceLines = new TableContent(doc, doc.getFontByAlias("bold"));
+        invoiceLines.getHeaders()
+                .add ("Menge", 100)
+                .add ("Beschreibung", 100)
+                .add ("Einzelpreis", 100)
+                .add ("Summe", 100); 
+        doc.addContent(invoiceLines);
+                
         TextContent test = new TextContent (doc)
                 .addLine("Das ist ein Test"); 
         doc.addContent (test);