1/*
2Open Asset Import Library (assimp)
3----------------------------------------------------------------------
4
5Copyright (c) 2006-2017, assimp team
6
7All rights reserved.
8
9Redistribution and use of this software in source and binary forms,
10with or without modification, are permitted provided that the
11following conditions are met:
12
13* Redistributions of source code must retain the above
14 copyright notice, this list of conditions and the
15 following disclaimer.
16
17* Redistributions in binary form must reproduce the above
18 copyright notice, this list of conditions and the
19 following disclaimer in the documentation and/or other
20 materials provided with the distribution.
21
22* Neither the name of the assimp team, nor the names of its
23 contributors may be used to endorse or promote products
24 derived from this software without specific prior
25 written permission of the assimp team.
26
27THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
30A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
32SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
33LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
34DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
35THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
36(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
37OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38
39@author: Richard Steffen, 2014
40
41----------------------------------------------------------------------
42*/
43
44/** @file XFileExporter.h
45 * Declares the exporter class to write a scene to a Collada file
46 */
47#ifndef AI_XFILEEXPORTER_H_INC
48#define AI_XFILEEXPORTER_H_INC
49
50#include <assimp/ai_assert.h>
51#include <assimp/matrix4x4.h>
52#include <assimp/Exporter.hpp>
53#include <sstream>
54
55struct aiScene;
56struct aiNode;
57struct aiMesh;
58struct aiString;
59
60namespace Assimp {
61
62class IOSystem;
63
64
65/// Helper class to export a given scene to a X-file.
66/// Note: an xFile uses a left hand system. Assimp used a right hand system (OpenGL), therefore we have to transform everything
67class XFileExporter
68{
69public:
70 /// Constructor for a specific scene to export
71 XFileExporter(const aiScene* pScene, IOSystem* pIOSystem, const std::string& path, const std::string& file, const ExportProperties* pProperties);
72
73 /// Destructor
74 virtual ~XFileExporter();
75
76protected:
77 /// Starts writing the contents
78 void WriteFile();
79
80 /// Writes the asset header
81 void WriteHeader();
82
83 /// write a frame transform
84 void WriteFrameTransform(aiMatrix4x4& m);
85
86 /// Recursively writes the given node
87 void WriteNode( aiNode* pNode );
88
89 /// write a mesh entry of the scene
90 void WriteMesh( aiMesh* mesh);
91
92 /// Enters a new xml element, which increases the indentation
93 void PushTag() { startstr.append( " "); }
94
95 /// Leaves an element, decreasing the indentation
96 void PopTag() {
97 ai_assert( startstr.length() > 1);
98 startstr.erase( startstr.length() - 2);
99 }
100
101public:
102 /// Stringstream to write all output into
103 std::stringstream mOutput;
104
105protected:
106
107 /// normalize the name to be accepted by xfile readers
108 std::string toXFileString(aiString &name);
109
110 /// hold the properties pointer
111 const ExportProperties* mProperties;
112
113 /// write a path
114 void writePath(const aiString &path);
115
116 /// The IOSystem for output
117 IOSystem* mIOSystem;
118
119 /// Path of the directory where the scene will be exported
120 const std::string mPath;
121
122 /// Name of the file (without extension) where the scene will be exported
123 const std::string mFile;
124
125 /// The scene to be written
126 const aiScene* mScene;
127 bool mSceneOwned;
128
129 /// current line start string, contains the current indentation for simple stream insertion
130 std::string startstr;
131
132 /// current line end string for simple stream insertion
133 std::string endstr;
134
135};
136
137}
138
139#endif // !! AI_XFILEEXPORTER_H_INC
140