[Liblas-commits] r1284 - trunk/include/liblas

[liblas-commits at liblas.org]

Author: hobu
Date: Fri May 22 12:52:18 2009
New Revision: 1284
URL: http://liblas.org/changeset/1284

Log:
add stream operations for serializing the data from the VLR

Modified:
   trunk/include/liblas/lasvariablerecord.hpp

Modified: trunk/include/liblas/lasvariablerecord.hpp
==============================================================================
--- trunk/include/liblas/lasvariablerecord.hpp	(original)
+++ trunk/include/liblas/lasvariablerecord.hpp	Fri May 22 12:52:18 2009
@@ -44,9 +44,13 @@
 #define LIBLAS_LASVARIABLERECORD_HPP_INCLUDED
 
 #include <liblas/cstdint.hpp>
+#include <liblas/detail/utility.hpp>
+#include <liblas/detail/endian.hpp>
+
 // std
 #include <string>
 #include <vector>
+#include <iostream>
 
 namespace liblas {
 
@@ -117,7 +121,43 @@
 
     /// Get the total size of the VLR in bytes
     uint32_t GetTotalSize() const;
-    
+
+    friend std::ostream& operator << ( std::ostream& out, LASVariableRecord const& d)
+    {
+        // std::vector<uint8_t> data = d.GetData();
+        for (size_t i=0;i<d.GetData().size();i++) {
+            out << d.GetData()[i];
+        }
+        return out;
+    }
+    friend std::istream& operator >> ( std::istream& in, LASVariableRecord& d)
+    {
+        std::streampos input_pos = in.tellg();
+        std::vector<uint8_t> data;
+        in.seekg(0, std::ios::end);
+        std::streampos length = in.tellg();
+        in.seekg(input_pos, std::ios::beg);
+        
+        uint8_t* buffer = new uint8_t[length];
+
+        liblas::detail::read_n(buffer, in, length);
+        
+        // FIXME:  This has probably already been properly swapped?  
+        //         but I'm worried about the case where we have a 
+        //         stream that is really some sort of zlib or bzip stream
+        //         and we don't know the orientation of the bytes - hobu
+        LIBLAS_SWAP_BYTES_N(buffer, length);
+        
+        for (size_t i=0; i < length; i++){
+            data.push_back(buffer[i]);
+        }
+        delete buffer;
+        
+        d.SetData(data);
+        return in;
+    }
+
+        
 private:
 
     enum