No object number in the constructor.

Add a separate method for registering kids.

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@196168 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/src/java/org/apache/fop/pdf/PDFPages.java b/src/java/org/apache/fop/pdf/PDFPages.java
index d5cf9f56cb88af4203243dbbe9d164c74a5b03fc..a7f8b260f829d418a9e90b07280e20f9d5da234d 100644 (file)
--- a/src/java/org/apache/fop/pdf/PDFPages.java
+++ b/src/java/org/apache/fop/pdf/PDFPages.java
@@ -79,14 +79,15 @@ public class PDFPages extends PDFObject {
      * create a /Pages object. NOTE: The PDFPages
      * object must be created before the PDF document is
      * generated, but it is not written to the stream immediately.
-     * It must aslo be allocated an object ID (so that the kids
+     * It must also be allocated an object ID (so that the kids
      * can refer to the parent) so that the XRef table needs to
      * be updated before this object is written.
      *
-     * @param number the object's number
+     * @param objnum the object's number
      */
-    public PDFPages(int number) {
-        super(number);
+    public PDFPages(int objnum) {
+        super();
+        setObjectNumber(objnum);
     }
 
     /**
@@ -95,10 +96,17 @@ public class PDFPages extends PDFObject {
      * @param page the PDFPage to add.
      */
     public void addPage(PDFPage page) {
-        this.kids.add(page.referencePDF());
         page.setParent(this);
         this.incrementCount();
     }
+    
+    /**
+     * Use this method to notify the PDFPages object that a child page
+     * @param page the child page
+     */
+    public void notifyKidRegistered(PDFPage page) {
+        this.kids.add(page.referencePDF());
+    }
 
     /**
      * get the count of /Page objects
@@ -118,19 +126,19 @@ public class PDFPages extends PDFObject {
     }
 
     /**
-     * represent the object in PDF
-     *
-     * @return the PDF string
+     * @see org.apache.fop.pdf.PDFObject#toPDFString()
      */
-    public byte[] toPDF() {
-        StringBuffer p = new StringBuffer(this.number + " " + this.generation
-                                          + " obj\n<< /Type /Pages\n/Count "
-                                          + this.getCount() + "\n/Kids [");
+    public String toPDFString() {
+        StringBuffer sb = new StringBuffer(64);
+        sb.append(getObjectID()).
+            append("<< /Type /Pages\n/Count ").
+            append(this.getCount()).
+            append("\n/Kids [");
         for (int i = 0; i < kids.size(); i++) {
-            p = p.append(kids.get(i) + " ");
+            sb.append(kids.get(i)).append(" ");
         }
-        p = p.append("] >>\nendobj\n");
-        return p.toString().getBytes();
+        sb.append("] >>\nendobj\n");
+        return sb.toString();
     }
 
 }