first commit

hrmsEjb/jxl/read/biff/ExternalSheetRecord.java

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+package jxl.read.biff;
+
+import common.Logger;
+import jxl.WorkbookSettings;
+import jxl.biff.IntegerHelper;
+import jxl.biff.RecordData;
+
+public class ExternalSheetRecord extends RecordData {
+  private static Logger logger = Logger.getLogger(ExternalSheetRecord.class);
+  
+  private static class Biff7 {
+    private Biff7() {}
+  }
+  
+  public static Biff7 biff7 = new Biff7();
+  
+  private XTI[] xtiArray;
+  
+  private static class XTI {
+    int supbookIndex;
+    
+    int firstTab;
+    
+    int lastTab;
+    
+    XTI(int s, int f, int l) {
+      this.supbookIndex = s;
+      this.firstTab = f;
+      this.lastTab = l;
+    }
+  }
+  
+  ExternalSheetRecord(Record t, WorkbookSettings ws) {
+    super(t);
+    byte[] data = getRecord().getData();
+    int numxtis = IntegerHelper.getInt(data[0], data[1]);
+    if (data.length < numxtis * 6 + 2) {
+      this.xtiArray = new XTI[0];
+      logger.warn("Could not process external sheets.  Formulas may be compromised.");
+      return;
+    } 
+    this.xtiArray = new XTI[numxtis];
+    int pos = 2;
+    for (int i = 0; i < numxtis; i++) {
+      int s = IntegerHelper.getInt(data[pos], data[pos + 1]);
+      int f = IntegerHelper.getInt(data[pos + 2], data[pos + 3]);
+      int l = IntegerHelper.getInt(data[pos + 4], data[pos + 5]);
+      this.xtiArray[i] = new XTI(s, f, l);
+      pos += 6;
+    } 
+  }
+  
+  ExternalSheetRecord(Record t, WorkbookSettings settings, Biff7 dummy) {
+    super(t);
+    logger.warn("External sheet record for Biff 7 not supported");
+  }
+  
+  public int getNumRecords() {
+    return (this.xtiArray != null) ? this.xtiArray.length : 0;
+  }
+  
+  public int getSupbookIndex(int index) {
+    return (this.xtiArray[index]).supbookIndex;
+  }
+  
+  public int getFirstTabIndex(int index) {
+    return (this.xtiArray[index]).firstTab;
+  }
+  
+  public int getLastTabIndex(int index) {
+    return (this.xtiArray[index]).lastTab;
+  }
+  
+  public byte[] getData() {
+    return getRecord().getData();
+  }
+}