+ add first prototype version of the IFC-STEP loader. Loads many test models fine but does not support some of the more sophisticated format features.

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@979 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/STEPFileReader.h

@@ -0,0 +1,64 @@
+/*
+Open Asset Import Library (ASSIMP)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2010, ASSIMP Development Team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms, 
+with or without modification, are permitted provided that the 
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the ASSIMP team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#ifndef INCLUDED_AI_STEPFILEREADER_H
+#define INCLUDED_AI_STEPFILEREADER_H
+
+#include "STEPFile.h"
+
+namespace Assimp {
+namespace STEP {
+
+	// ### Parsing a STEP file is a twofold procedure ###
+
+	// --------------------------------------------------------------------------
+	// 1) read file header and return to caller, who checks if the 
+	//    file is of a supported schema ..
+	DB* ReadFileHeader(boost::shared_ptr<IOStream> stream);
+
+	// --------------------------------------------------------------------------
+	// 2) read the actual file contents using a user-supplied set of
+	//    conversion functions to interpret the data.
+	void ReadFile(DB& db,const EXPRESS::ConversionSchema& scheme);
+
+} // ! STEP
+} // ! Assimp
+
+#endif