/* * This program source code file is part of KiCad, a free EDA CAD application. * * Copyright (C) 2015 Cirilo Bernardo * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, you may find one here: * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html * or you may search the http://www.gnu.org website for the version 2 license, * or you may write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ /** * @file 3d_cache.h * defines the display data cache manager for 3D models */ #ifndef CACHE_3D_H #define CACHE_3D_H #include #include #include #include "kicad_string.h" #include "filename_resolver.h" #include "3d_info.h" #include "plugins/3dapi/c3dmodel.h" class PGM_BASE; class S3D_CACHE; class S3D_CACHE_ENTRY; class SCENEGRAPH; class FILENAME_RESOLVER; class S3D_PLUGIN_MANAGER; class S3D_CACHE { private: /// cache entries std::list< S3D_CACHE_ENTRY* > m_CacheList; /// mapping of file names to cache names and data std::map< wxString, S3D_CACHE_ENTRY*, rsort_wxString > m_CacheMap; /// object to resolve file names FILENAME_RESOLVER* m_FNResolver; /// plugin manager S3D_PLUGIN_MANAGER* m_Plugins; /// set true if the cache needs to be updated bool m_DirtyCache; /// 3D cache directory wxString m_CacheDir; /// base configuration path for 3D items wxString m_ConfigDir; /// current KiCad project dir wxString m_ProjDir; /** Find or create cache entry for file name * * Searches the cache list for the given filename and retrieves * the cache data; a cache entry is created if one does not * already exist. * * @param[in] aFileName file name (full or partial path) * @param[out] aCachePtr optional return address for cache entry pointer * @return SCENEGRAPH object associated with file name * @retval NULL on error */ SCENEGRAPH* checkCache( const wxString& aFileName, S3D_CACHE_ENTRY** aCachePtr = NULL ); /** * Function getSHA1 * calculates the SHA1 hash of the given file * * @param[in] aFileName file name (full path) * @param[out] aSHA1Sum a 20 byte character array to hold the SHA1 hash * @retval true success * @retval false failure */ bool getSHA1( const wxString& aFileName, unsigned char* aSHA1Sum ); // load scene data from a cache file bool loadCacheData( S3D_CACHE_ENTRY* aCacheItem ); // save scene data to a cache file bool saveCacheData( S3D_CACHE_ENTRY* aCacheItem ); // the real load function (can supply a cache entry pointer to member functions) SCENEGRAPH* load( const wxString& aModelFile, S3D_CACHE_ENTRY** aCachePtr = NULL ); public: S3D_CACHE(); virtual ~S3D_CACHE(); /** * Function Set3DConfigDir * Sets the configuration directory to be used by the * model manager for storing 3D model manager configuration * data and the model cache. The config directory may only be * set once in the lifetime of the object. * * @param aConfigDir is the configuration directory to use * for 3D model manager data * @return true on success */ bool Set3DConfigDir( const wxString& aConfigDir ); /** * Function Get3DConfigDir * returns the current 3D configuration directory on * success, otherwise it returns wxEmptyString. If the * directory was not previously set via Set3DConfigDir() * then a default is used which is based on kicad's * configuration directory code as of September 2015. */ wxString Get3DConfigDir( bool createDefault = false ); /** * Function SetProjectDir * sets the current project's working directory; this * affects the model search path */ bool SetProjectDir( const wxString& aProjDir ); /** * Function SetProgramBase * sets the filename resolver's pointer to the application's * PGM_BASE instance; the pointer is used to extract the * local env vars. */ void SetProgramBase( PGM_BASE* aBase ); /** * Function GetProjectDir * returns the current project's working directory */ wxString GetProjectDir( void ); /** * Function Load * attempts to load the scene data for a model; it will consult the * internal cache list and load from cache if possible before invoking * the load() function of the available plugins. * * @param aModelFile [in] is the partial or full path to the model to be loaded * @return true if the model was successfully loaded, otherwise false. * The model may fail to load if, for example, the plugin does not * support rendering of the 3D model. */ SCENEGRAPH* Load( const wxString& aModelFile ); FILENAME_RESOLVER* GetResolver( void ); /** * Function GetFileFilters * returns the list of file filters retrieved from the plugins; * this will contain at least the default "All Files (*.*)|*.*" * * @return a pointer to the filter list */ std::list< wxString > const* GetFileFilters( void ) const; /** * Function FlushCache * frees all data in the cache and by default closes all plugins */ void FlushCache( bool closePlugins = true ); /** * Function ClosePlugins * unloads plugins to free memory */ void ClosePlugins( void ); /** * Function GetModel * attempts to load the scene data for a model and to translate it * into an S3D_MODEL structure for display by a renderer * * @param aModelFileName is the full path to the model to be loaded * @return is a pointer to the render data or NULL if not available */ S3DMODEL* GetModel( const wxString& aModelFileName ); wxString GetModelHash( const wxString& aModelFileName ); }; #endif // CACHE_3D_H