kicad/include/filename_resolver.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
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* Copyright (C) 2015-2016 Cirilo Bernardo <cirilo.bernardo@gmail.com>
*
* 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 filename_resolver.h
* provides an extensible class to resolve 3D model paths. Initially
* the legacy behavior will be implemented and an incomplete path
* would be checked against the project directory or the KISYS3DMOD
* environment variable. In the future a configurable set of search
* paths may be specified.
*/
#ifndef FILENAME_RESOLVER_H
#define FILENAME_RESOLVER_H
#include <list>
#include <map>
#include <vector>
#include <wx/string.h>
class PGM_BASE;
struct SEARCH_PATH
{
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wxString m_Alias; // alias to the base path
wxString m_Pathvar; // base path as stored in the config file
wxString m_Pathexp; // expanded base path
wxString m_Description; // description of the aliased path
};
class FILENAME_RESOLVER
{
private:
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wxString m_configDir; // 3D configuration directory
std::list<SEARCH_PATH> m_paths; // list of base paths to search from
int m_errflags;
PGM_BASE* m_pgm;
PROJECT* m_project;
wxString m_curProjDir;
/**
* Function createPathList
* builds the path list using available information such as
* KISYS3DMOD and the 3d_path_list configuration file. Invalid
* paths are silently discarded and removed from the configuration
* file.
*
* @return true if at least one valid path was found
*/
bool createPathList( void );
/**
* Function addPath
* checks that a path is valid and adds it to the search list
*
* @param aPath is the alias set to be checked and added
* @return true if aPath is valid
*/
bool addPath( const SEARCH_PATH& aPath );
/**
* Function readPathList
* reads a list of path names from a configuration file
*
* @return true if a file was found and contained at least
* one valid path
*/
bool readPathList( void );
/**
* Function writePathList
* writes the current path list to a configuration file
*
* @return true if the path list was not empty and was
* successfully written to the configuration file
*/
bool writePathList( void );
/**
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* Function checkEnvVarPath
* checks the ${ENV_VAR} component of a path and adds
* it to the resolver's path list if it is not yet in
* the list
*/
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void checkEnvVarPath( const wxString& aPath );
public:
FILENAME_RESOLVER();
/**
* Function Set3DConfigDir
* sets the user's configuration directory
* for 3D models.
*
* @param aConfigDir
* @return true if the call succeeds (directory exists)
*/
bool Set3DConfigDir( const wxString& aConfigDir );
/**
* Function SetProjectDir
* sets the current KiCad project directory as the first
* entry in the model path list
*
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* @param[in] aProjDir current project directory
* @param[out] flgChanged optional, set to true if directory was changed
* @retval true success
* @retval false failure
*/
bool SetProject( PROJECT* aProject, bool* flgChanged = NULL );
wxString GetProjectDir( void );
/**
* Function SetProgramBase
* sets a pointer to the application's PGM_BASE instance;
* the pointer is used to extract the local env vars.
*/
void SetProgramBase( PGM_BASE* aBase );
/**
* Function UpdatePathList
* clears the current path list and substitutes the given path
* list, updating the path configuration file on success.
*/
bool UpdatePathList( std::vector< SEARCH_PATH >& aPathList );
/**
* Function ResolvePath
* determines the full path of the given file name. In the future
* remote files may be supported, in which case it is best to
* require a full URI in which case ResolvePath should check that
* the URI conforms to RFC-2396 and related documents and copies
* aFileName into aResolvedName if the URI is valid.
*/
wxString ResolvePath( const wxString& aFileName );
/**
* Function ShortenPath
* produces a relative path based on the existing
* search directories or returns the same path if
* the path is not a superset of an existing search path.
*
* @param aFullPathName is an absolute path to shorten
* @return the shortened path or aFullPathName
*/
wxString ShortenPath( const wxString& aFullPathName );
/**
* Function GetPaths
* returns a pointer to the internal path list; the items in:load
*
* the list can be used to set up the list of search paths
* available to a 3D file browser.
*
* @return pointer to the internal path list
*/
const std::list< SEARCH_PATH >* GetPaths( void );
/**
* Function SplitAlias
* returns true if the given name contains an alias and
* populates the string anAlias with the alias and aRelPath
* with the relative path.
*/
bool SplitAlias( const wxString& aFileName, wxString& anAlias, wxString& aRelPath );
/**
* Function ValidateName
* returns true if the given path is a valid aliased relative path.
* If the path contains an alias then hasAlias is set true.
*/
bool ValidateFileName( const wxString& aFileName, bool& hasAlias );
/**
* Function GetKicadPaths
* returns a list of path environment variables local to Kicad;
* this list always includes KISYS3DMOD even if it is not
* defined locally.
*/
bool GetKicadPaths( std::list< wxString >& paths );
};
#endif // FILENAME_RESOLVER_H