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>
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* Copyright (C) 2020 KiCad Developers, see AUTHORS.txt for contributors.
*
* 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
*/
#ifndef FILENAME_RESOLVER_H
#define FILENAME_RESOLVER_H
#include <list>
#include <map>
#include <vector>
#include <wx/string.h>
class PROJECT;
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
};
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/**
* Provide an extensible class to resolve 3D model paths.
*
* Initially the legacy behavior will be implemented and an incomplete path would be checked
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* against the project directory or the KICAD7_3DMODEL_DIR environment variable. In the future a
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* configurable set of search paths may be specified.
*/
class FILENAME_RESOLVER
{
public:
FILENAME_RESOLVER();
/**
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* Set the user's configuration directory for 3D models.
*
* @param aConfigDir
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* @return true if the call succeeds (directory exists).
*/
bool Set3DConfigDir( const wxString& aConfigDir );
/**
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* Set 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
*/
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bool SetProject( PROJECT* aProject, bool* flgChanged = nullptr );
wxString GetProjectDir() const;
/**
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* Set a pointer to the application's #PGM_BASE instance used to extract the local env vars.
*/
void SetProgramBase( PGM_BASE* aBase );
/**
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* Clear the current path list and substitutes the given path list and update the path
* configuration file on success.
*/
bool UpdatePathList( const std::vector<SEARCH_PATH>& aPathList );
/**
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* 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 \a aFileName into aResolvedName if the URI is valid.
*
* @param aFileName The configured file path to resolve
* @param aWorkingPath The current working path for relative path resolutions
*/
wxString ResolvePath( const wxString& aFileName, const wxString& aWorkingPath );
/**
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* Produce 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.
*
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* @param aFullPathName is an absolute path to shorten.
* @return the shortened path or \a aFullPathName.
*/
wxString ShortenPath( const wxString& aFullPathName );
/**
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* Return a pointer to the internal path list; the items in:load.
*
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* The list can be used to set up the list of search paths available to a 3D file browser.
*
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* @return pointer to the internal path list.
*/
const std::list<SEARCH_PATH>* GetPaths() const;
/**
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* Return true if the given name contains an alias and populates the string \a anAlias
* with the alias and \a aRelPath with the relative path.
*/
bool SplitAlias( const wxString& aFileName, wxString& anAlias, wxString& aRelPath ) const;
/**
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* 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 ) const;
/**
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* Return a list of path environment variables local to KiCad.
*
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* This list always includes KICAD7_3DMODEL_DIR even if it is not defined locally.
*/
bool GetKicadPaths( std::list< wxString >& paths ) const;
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private:
/**
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* Build the path list using available information such as KICAD7_3DMODEL_DIR and the 3d_path_list
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* configuration file.
*
* @warning Invalid paths are silently discarded and removed from the configuration file.
*
* @return true if at least one valid path was found.
*/
bool createPathList( void );
/**
* Check 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 );
/**
* Check the ${ENV_VAR} component of a path and adds it to the resolver's path list if
* it is not yet in the list.
*/
void checkEnvVarPath( const wxString& aPath );
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;
};
#endif // FILENAME_RESOLVER_H