00001 /* 00002 Copyright (c) 2010, The Barbarian Group 00003 All rights reserved. 00004 00005 Redistribution and use in source and binary forms, with or without modification, are permitted provided that 00006 the following conditions are met: 00007 00008 * Redistributions of source code must retain the above copyright notice, this list of conditions and 00009 the following disclaimer. 00010 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 00011 the following disclaimer in the documentation and/or other materials provided with the distribution. 00012 00013 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED 00014 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00015 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 00016 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00017 TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00018 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00019 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00020 POSSIBILITY OF SUCH DAMAGE. 00021 */ 00022 00023 #pragma once 00024 00025 #include "cinder/Cinder.h" 00026 #include "cinder/Url.h" 00027 #include "cinder/Buffer.h" 00028 #include "cinder/Stream.h" 00029 #include "cinder/Filesystem.h" 00030 00031 namespace cinder { 00032 00033 typedef std::shared_ptr<class DataSource> DataSourceRef; 00034 00035 class DataSource { 00036 public: 00037 virtual bool isFilePath() = 0; 00038 virtual bool isUrl() = 0; 00039 00040 const fs::path& getFilePath(); 00041 const Url& getUrl(); 00042 const std::string& getFilePathHint(); 00043 00044 Buffer& getBuffer(); 00045 virtual IStreamRef createStream() = 0; 00046 00047 protected: 00048 DataSource( const fs::path &aFilePath, const Url &aUrl ) 00049 : mFilePath( aFilePath ), mUrl( aUrl ) 00050 {} 00051 virtual ~DataSource() {} 00052 00053 virtual void createBuffer() = 0; 00054 00055 void setFilePathHint( const std::string &aFilePathHint ); 00056 00057 Buffer mBuffer; 00058 fs::path mFilePath; 00059 std::string mFilePathHint; 00060 Url mUrl; 00061 }; 00062 00063 00064 typedef std::shared_ptr<class DataSourcePath> DataSourcePathRef; 00065 00066 class DataSourcePath : public DataSource { 00067 public: 00068 static DataSourcePathRef create( const fs::path &path ); 00069 00070 virtual bool isFilePath() { return true; } 00071 virtual bool isUrl() { return false; } 00072 00073 virtual IStreamRef createStream(); 00074 00075 protected: 00076 explicit DataSourcePath( const fs::path &path ); 00077 00078 virtual void createBuffer(); 00079 00080 IStreamFileRef mStream; 00081 }; 00082 00083 DataSourceRef loadFile( const fs::path &path ); 00084 00085 typedef std::shared_ptr<class DataSourceUrl> DataSourceUrlRef; 00086 00087 class DataSourceUrl : public DataSource { 00088 public: 00089 static DataSourceUrlRef create( const Url &Url ); 00090 00091 virtual bool isFilePath() { return false; } 00092 virtual bool isUrl() { return true; } 00093 00094 virtual IStreamRef createStream(); 00095 00096 protected: 00097 DataSourceUrl( const Url &Url ); 00098 00099 virtual void createBuffer(); 00100 00101 IStreamUrlRef mStream; 00102 }; 00103 00104 DataSourceRef loadUrl( const Url &Url ); 00105 inline DataSourceRef loadUrl( const std::string &urlString ) { return loadUrl( Url( urlString ) ); } 00106 00107 typedef std::shared_ptr<class DataSourceBuffer> DataSourceBufferRef; 00108 00109 class DataSourceBuffer : public DataSource { 00110 public: 00111 static DataSourceBufferRef create( Buffer buffer, const std::string &filePathHint = "" ); 00112 00113 virtual bool isFilePath() { return false; } 00114 virtual bool isUrl() { return false; } 00115 00116 virtual IStreamRef createStream(); 00117 00118 protected: 00119 DataSourceBuffer( Buffer aBuffer ); 00120 00121 virtual void createBuffer(); 00122 00123 IStreamMemRef mStream; 00124 }; 00125 00126 } // namespace cinder