From 78742d6698450d7b13ec11af47f2f67770888b13 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Thu, 8 Jun 2006 11:58:56 +0000
Subject: [PATCH] From Gustavo Wagner, addition of trim method to TemplateArray
 class.

From Robert Osfield, made trim method a virtual method of the base Array class
and added a trim implementation to TemplateIndexArray.
---
 include/osg/Array | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/include/osg/Array b/include/osg/Array
index 0d981a4d9..3bbf3a4ea 100644
--- a/include/osg/Array
+++ b/include/osg/Array
@@ -101,6 +101,9 @@ class OSG_EXPORT Array : public Object
         virtual unsigned int    getTotalDataSize() const = 0;
         virtual unsigned int    getNumElements() const = 0;
 
+        /** Frees unused space on this vector - i.e. the difference between size() and max_size() of the underlying vector.*/
+        virtual void trim() {}
+
         /** Dirty the primitive, which increments the modified count, to force buffer objects to update. */
         inline void dirty() { ++_modifiedCount; }      
       
@@ -168,6 +171,12 @@ class TemplateArray : public Array, public std::vector<T>
             if (elem_rhs<elem_lhs) return 1;
             return 0;
         }
+
+        /** Frees unused space on this vector - i.e. the difference between size() and max_size() of the underlying vector.*/
+        virtual void trim()
+        {
+            std::vector<T>( *this ).swap( *this );
+        }
         
         virtual const GLvoid*   getDataPointer() const { if (!this->empty()) return &this->front(); else return 0; }
         virtual unsigned int    getTotalDataSize() const { return this->size()*sizeof(T); }
@@ -247,6 +256,12 @@ class TemplateIndexArray : public IndexArray, public std::vector<T>
             return 0;
         }
 
+        /** Frees unused space on this vector - i.e. the difference between size() and max_size() of the underlying vector.*/
+        virtual void trim()
+        {
+            std::vector<T>( *this ).swap( *this );
+        }
+        
         virtual const GLvoid*   getDataPointer() const { if (!this->empty()) return &this->front(); else return 0; }
         virtual unsigned int    getTotalDataSize() const { return this->size()*sizeof(T); }
         virtual unsigned int    getNumElements() const { return this->size(); }