Gorilla.Sketchfab.Loader

Fields

• protected MESH_COUNTER : Integer
  
• protected FClient : TRESTClient
  
• protected FLoginAuth : THTTPBasicAuthenticator
  
• protected FRequestToken : TRESTRequest
  
• protected FResponseToken : TRESTResponse
  
• protected FRequestModel : TRESTRequest
  
• protected FResponseModel : TRESTResponse
  
• protected FAccessToken : string
  
• protected FRefreshToken : string
  

Methods

• public constructor Create  ( ) ;
• public destructor Destroy  ( ) ;
• protected function DoGetDestDir  ( ADestDir :  string; AUID :  string )  : string ;

  Returns the destination directory as a concatination of ADestDir and UID. If ADestDir is empty, the method returns a directoy in temp-path.

• protected function DoGetDestFile  ( ADestDir :  string; AMask :  string )  : string ;

  Searches for a specific file in the given destination directory. The sketchfab loader uses extension masks for finding specific files, like ".gltf" or ".zip".

• protected procedure DoLogin  ( const  AURL :  string; const  AUsername :  string; const  APassword :  string; const  AClientId :  string; const  AClientSecret :  string ) ;

  Processes the login with sketchfab api. If any error occurs, the method will throw an exception. DoRequestDownloadURL() implicitly calls the login routine.

• protected procedure DoRequestDownloadURL  ( const  AURL :  string; const  AUsername :  string; const  APassword :  string; const  AClientId :  string; const  AClientSecret :  string; const  AUID :  string; var  ADestDir :  string; var  ADownloadURL :  string ) ;
• protected procedure DoDecomposeDownloadURL  ( const  ADownloadURL :  string; var  AData :  TURI ) ;

  Decomposes given URL into all parts. This will be used to setup request correctly, because RESTClient has problems with complex URL as BaseURL value.

• protected function DoDownloadArchive  ( const  ADestDir :  string; const  ADownloadURL :  string )  : string ;

  We receive a zip-archive url from sketchfab to download the model files. The method will download the given url to destination folder and returns the filename for the stored zip-archive.

• protected function DoExtractArchive  ( const  ADestDir :  string; const  AArchive :  string )  : string ;

  After we successfully downloaded the zip-archive, we need to extract it to the given destination directory. The method will automatically search for a *.gltf file and returns it.

• protected function DoCheckIfZIPAlreadyCached  ( ADestDir :  string; AUID :  string; var  AZIPFile :  string )  : Boolean ;

  This method checks a specific directory, based on a destination directory and the model UID, for an existing zip-archive. It will return the complete filename, otherwise the result string will be empty.

• protected function DoCheckIfGLTFAlreadyCached  ( ADestDir :  string; AUID :  string; var  AGLTFFile :  string )  : Boolean ;

  This method checks a specific directory, based on a destination directory and the model UID, for an existing *.gltf model file. It will return the complete filename, otherwise the result string will be empty.

• protected function DoLoadModelDef  ( const  AOptions :  TGorillaLoadOptions )  : TModelDef ;

  The method establishes the complete cache and / or download process.

• public function LoadModelDefFromStream  ( const  AStream :  TStream; const  AOptions :  TGorillaLoadOptions )  : TModelDef ;  overload override;