From 8768a855af9ccc482a9520ce708ef32e0e6e0e7d Mon Sep 17 00:00:00 2001
From: Normand Briere <nbriere@noware.ca>
Date: Fri, 04 Oct 2019 20:06:36 -0400
Subject: [PATCH] Block multiple download.

---
 FileObject.java |   56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 files changed, 54 insertions(+), 2 deletions(-)

diff --git a/FileObject.java b/FileObject.java
index 6de2b2c..e899a71 100644
--- a/FileObject.java
+++ b/FileObject.java
@@ -17,6 +17,41 @@
             filecontent = null;
     }
     
+    boolean HasBigData()
+    {
+        return filecontent != null;
+    }
+    
+    void ExtractBigData(java.util.Hashtable<java.util.UUID, Object3D> hashtable)
+    {
+        Object3D o;
+        
+        if (hashtable.containsKey(GetUUID()))
+        {
+            o = hashtable.get(GetUUID());
+
+            //Grafreed.Assert(this.filecontent == ((FileObject)o).filecontent);
+        }
+        else
+        {
+            o = new Object3D("copy of " + this.name);
+
+            hashtable.put(GetUUID(), o);
+        }
+
+        ExtractBigData(o);
+    }
+    
+    void RestoreBigData(java.util.Hashtable<java.util.UUID, Object3D> hashtable)
+    {
+        if (!hashtable.containsKey(GetUUID()))
+            return;
+
+        Object3D o = hashtable.get(GetUUID());
+
+        RestoreBigData(o);
+    }
+    
     boolean IsStatic()
     {
         return false; // ???? false;
@@ -81,6 +116,23 @@
         this.objfile = objfile;
     }
     
+    void ExtractBigData(Object3D o)
+    {
+        super.ExtractBigData(o);
+        
+        o.savefilecontent = this.filecontent;
+        
+        // filecontent is transient
+        this.filecontent = null;
+    }
+
+    void RestoreBigData(Object3D o)
+    {
+        super.RestoreBigData(o);
+        
+        this.filecontent = o.savefilecontent;
+    }
+    
     Object3D deepCopy()
     {
         FileObject e = new FileObject(name, objfile);
@@ -88,9 +140,9 @@
         return e;
     }
 
-    protected void deepCopySelf(Object3D other)
+    protected void deepCopyNode(Object3D other)
     {
-        super.deepCopySelf(other);
+        super.deepCopyNode(other);
     }
     
 //    void Draw(CameraPane display, Object3D /*Composite*/ root, boolean selected)

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