first commit

hrmsEjb/jxl/biff/drawing/Dg.java

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+package jxl.biff.drawing;
+
+import jxl.biff.IntegerHelper;
+
+class Dg extends EscherAtom {
+  private byte[] data;
+  
+  private int drawingId;
+  
+  private int shapeCount;
+  
+  private int seed;
+  
+  public Dg(EscherRecordData erd) {
+    super(erd);
+    this.drawingId = getInstance();
+    byte[] bytes = getBytes();
+    this.shapeCount = IntegerHelper.getInt(bytes[0], bytes[1], bytes[2], bytes[3]);
+    this.seed = IntegerHelper.getInt(bytes[4], bytes[5], bytes[6], bytes[7]);
+  }
+  
+  public Dg(int numDrawings) {
+    super(EscherRecordType.DG);
+    this.drawingId = 1;
+    this.shapeCount = numDrawings + 1;
+    this.seed = 1024 + this.shapeCount + 1;
+    setInstance(this.drawingId);
+  }
+  
+  public int getDrawingId() {
+    return this.drawingId;
+  }
+  
+  byte[] getData() {
+    this.data = new byte[8];
+    IntegerHelper.getFourBytes(this.shapeCount, this.data, 0);
+    IntegerHelper.getFourBytes(this.seed, this.data, 4);
+    return setHeaderData(this.data);
+  }
+}