/* * This program source code file is part of KiCad, a free EDA CAD application. * * Copyright (C) 2016 CERN * Copyright (C) 2016-2023 KiCad Developers, see AUTHORS.txt for contributors. * * @author Wayne Stambaugh * * 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 3 * 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, see . */ #ifndef SCH_IO_H_ #define SCH_IO_H_ #include #include #include #include #include #include #include #include /** * Base class that schematic file and library loading and saving plugins should derive from. * Implementations can provide either LoadSchematicFile() or SaveSchematicFile() functions, * or both. SCH_IOs throw exceptions, so it is best that you wrap your calls to these * functions in a try catch block. Plugins throw exceptions because it is illegal * for them to have any user interface calls in them whatsoever, i.e. no windowing * or screen printing at all. * * 
 *   try
 *   {
 *        SCH_IO_MGR::LoadSchematicFile(...);
 *   or
 *        SCH_IO_MGR::SaveSchematicFile(...);
 *   }
 *   catch( const IO_ERROR& ioe )
 *   {
 *        // grab text from ioe, show in error window.
 *   }
 *
*/ class SCH_IO : public IO_BASE { public: //------------------------------------------------------ /** * Returns schematic file description for the #SCH_IO. */ virtual const IO_BASE::IO_FILE_DESC GetSchematicFileDesc() const; /** * Checks if this SCH_IO can read the specified schematic file. * If not overriden, extension check is used. */ virtual bool CanReadSchematicFile( const wxString& aFileName ) const; /** * Return the modification hash from the library cache. * * @note This is temporary until the new s-expr file format is implement. The new file * format will embed symbols instead of referencing them from the library. This * function can be removed when the new file format is implemented. * * @return the modification hash of the library cache. */ virtual int GetModifyHash() const = 0; virtual void SaveLibrary( const wxString& aFileName, const STRING_UTF8_MAP* aProperties = nullptr ); /** * Load information from some input file format that this #SCH_IO implementation * knows about, into either a new #SCH_SHEET or an existing one. This may be used to load an * entire new #SCH_SHEET, or to augment an existing one if \a aAppendToMe is not NULL. * * @param aFileName is the name of the file to use as input and may be foreign in * nature or native in nature. * * @param aKiway is the #KIWAY object used to access the symbol libraries loaded * by the project. * * @param aAppendToMe is an existing #SCH_SHEET to append to, but if NULL then this means * "do not append, rather load anew". * * @param aProperties is an associative array that can be used to tell the loader how to * load the file, because it can take any number of additional named * arguments that the plugin is known to support. These are tuning * parameters for the import or load. The caller continues to own * this object (plugin may not delete it), and plugins should expect * it to be optionally NULL. * * @return the successfully loaded schematic, or the same one as \a aAppendToMe * if \a aAppendToMe was not NULL, and the caller owns it. * * @throw IO_ERROR if there is a problem loading, and its contents should say what went * wrong, using line number and character offsets of the input file if * possible. */ virtual SCH_SHEET* LoadSchematicFile( const wxString& aFileName, SCHEMATIC* aSchematic, SCH_SHEET* aAppendToMe = nullptr, const STRING_UTF8_MAP* aProperties = nullptr ); /** * Write \a aSchematic to a storage file in a format that this #SCH_IO implementation * knows about, or it can be used to write a portion of \a aSchematic to a special kind * of export file. * * @param aFileName is the name of a file to save to on disk. * * @param aSheet is the class #SCH_SHEET in memory document tree from which to extract * information when writing to \a aFileName. The caller continues to * own the SCHEMATIC, and the plugin should refrain from modifying the * SCHEMATIC if possible. * * @param aSchematic is the #SCHEMATIC object used to access any schematic-wide or project * information needed to save the document. * * @param aProperties is an associative array that can be used to tell the saver how to * save the file, because it can take any number of additional named * tuning arguments that the plugin is known to support. The caller * continues to own this object (plugin may not delete it), and plugins * should expect it to be optionally NULL. Set the * #PropSaveCurrentSheetOnly property to only save the current sheet. * Otherwise, all hierarchical sheets are saved. * * @throw IO_ERROR if there is a problem saving or exporting. */ virtual void SaveSchematicFile( const wxString& aFileName, SCH_SHEET* aSheet, SCHEMATIC* aSchematic, const STRING_UTF8_MAP* aProperties = nullptr ); /** * Populate a list of #LIB_SYMBOL alias names contained within the library \a aLibraryPath. * * @param aSymbolNameList is an array to populate with the #LIB_SYMBOL names associated with * the library. * * @param aLibraryPath is a locator for the "library", usually a directory, file, * or URL containing one or more #LIB_SYMBOL objects. * * @param aProperties is an associative array that can be used to tell the plugin anything * needed about how to perform with respect to \a aLibraryPath. The * caller continues to own this object (plugin may not delete it), and * plugins should expect it to be optionally NULL. * * @throw IO_ERROR if the library cannot be found, the part library cannot be loaded. */ virtual void EnumerateSymbolLib( wxArrayString& aSymbolNameList, const wxString& aLibraryPath, const STRING_UTF8_MAP* aProperties = nullptr ); /** * Populate a list of #LIB_SYMBOL aliases contained within the library \a aLibraryPath. * * @note It is the responsibility of the caller to delete the returned object from the heap. * Failure to do this will result in memory leaks. * * @param aSymbolList is an array to populate with the #LIB_SYMBOL pointers associated with * the library. * * @param aLibraryPath is a locator for the "library", usually a directory, file, * or URL containing one or more #LIB_SYMBOL objects. * * @param aProperties is an associative array that can be used to tell the plugin anything * needed about how to perform with respect to \a aLibraryPath. The * caller continues to own this object (plugin may not delete it), and * plugins should expect it to be optionally NULL. * * @throw IO_ERROR if the library cannot be found, the part library cannot be loaded. */ virtual void EnumerateSymbolLib( std::vector& aSymbolList, const wxString& aLibraryPath, const STRING_UTF8_MAP* aProperties = nullptr ); /** * Load a #LIB_SYMBOL object having \a aPartName from the \a aLibraryPath containing * a library format that this #SCH_IO knows about. * * @param aLibraryPath is a locator for the "library", usually a directory, file, * or URL containing several symbols. * * @param aPartName is the name of the #LIB_SYMBOL to load. * * @param aProperties is an associative array that can be used to tell the loader * implementation to do something special, because it can take * any number of additional named tuning arguments that the plugin * is known to support. The caller continues to own this object * (plugin may not delete it), and plugins should expect it to be * optionally NULL. * * @return the part created on the heap if found caller shares it or NULL if not found. * * @throw IO_ERROR if the library cannot be found or read. No exception * is thrown in the case where aAliasName cannot be found. */ virtual LIB_SYMBOL* LoadSymbol( const wxString& aLibraryPath, const wxString& aPartName, const STRING_UTF8_MAP* aProperties = nullptr ); /** * Write \a aSymbol to an existing library located at \a aLibraryPath. If a #LIB_SYMBOL * by the same name already exists or there are any conflicting alias names, the new * #LIB_SYMBOL will silently overwrite any existing aliases and/or part because libraries * cannot have duplicate alias names. It is the responsibility of the caller to check * the library for conflicts before saving. * * @param aLibraryPath is a locator for the "library", usually a directory, file, * or URL containing several symbols. * * @param aSymbol is what to store in the library. The library is refreshed and the * caller must update any #LIB_SYMBOL pointers that may have changed. * * @param aProperties is an associative array that can be used to tell the * saver how to save the symbol, because it can take any number of * additional named tuning arguments that the plugin is known to support. * The caller continues to own this object (plugin may not delete it), and * plugins should expect it to be optionally NULL. * * @throw IO_ERROR if there is a problem saving. */ virtual void SaveSymbol( const wxString& aLibraryPath, const LIB_SYMBOL* aSymbol, const STRING_UTF8_MAP* aProperties = nullptr ); /** * Delete the entire #LIB_SYMBOL associated with \a aAliasName from the library * \a aLibraryPath. * * @param aLibraryPath is a locator for the "library", usually a directory, file, * or URL containing several symbols. * * @param aSymbolName is the name of a #LIB_SYMBOL associated with it's root #LIB_SYMBOL * object to delete from the specified library. * * @param aProperties is an associative array that can be used to tell the library * delete function anything special, because it can take any number * of additional named tuning arguments that the plugin is known to * support. The caller continues to own this object (plugin may not * delete it), and plugins should expect it to be optionally NULL. * * @throw IO_ERROR if there is a problem finding the alias or the library or deleting it. */ virtual void DeleteSymbol( const wxString& aLibraryPath, const wxString& aSymbolName, const STRING_UTF8_MAP* aProperties = nullptr ); /** * Append supported #SCH_IO options to \a aListToAppenTo along with internationalized * descriptions. Options are typically appended so that a derived SCH_IO can call * its base class function by the same name first, thus inheriting options declared there. * (Some base class options could pertain to all Symbol*() functions in all derived * SCH_IOs.) Note that since aListToAppendTo is a PROPERTIES object, all options * will be unique and last guy wins. * * @param aListToAppendTo holds a tuple of *
*
option
*
This eventually is what shows up into the fp-lib-table "options" * field, possibly combined with others.
*
internationalized description
*
The internationalized description is displayed in DIALOG_PLUGIN_OPTIONS. * It may be multi-line and be quite explanatory of the option.
*
*
* In the future perhaps \a aListToAppendTo evolves to something capable of also * holding a wxValidator for the cells in said dialog: * http://forums.wxwidgets.org/viewtopic.php?t=23277&p=104180. * This would require a 3 column list, and introducing wx GUI knowledge to * #SCH_IO, which has been avoided to date. */ virtual void GetLibraryOptions( STRING_UTF8_MAP* aListToAppendTo ) const override; /** * @return true if this plugin supports libraries that contain sub-libraries. */ virtual bool SupportsSubLibraries() const { return false; } /** * Retrieves a list of sub-libraries in this library. * * Some types of symbol library support sub-libraries, which are a single-level organizational * hierarchy that is implementation-defined per plugin. Most of KiCad ignores sub-libraries and * treats the hierarchy between library and symbol as flat, but the sub-libraries are used for * sorting and grouping symbols in the symbol chooser. * * Has no effect if SupportsSubLibraries() returns false. * * @param aNames will be filled with a list of sub-libraries within this symbol library */ virtual void GetSubLibraryNames( std::vector& aNames ) {} /** * Retrieves a list of (custom) field names that are present on symbols in this library. * The plugin is responsible for guaranteeing that this list contains the set of unique * custom field names present on any symbols contained in the library. * * The required KiCad fields are not included in this list. * * @param aNames will be filled with any custom fields present in this library. */ virtual void GetAvailableSymbolFields( std::vector& aNames ) {} /** * Retrieves a list of (custom) field names that should be shown by default for this library * in the symbol chooser. This list should be a subset of the result returned by * GetAvailableSymbolFields(). * * The preference for which fields to hide and show for a given library is stored on a * per-library basis in a user's preferences (or in the project local settings for a project- * local library). The set of fields returned by GetDefaultSymbolFields() will be used if this * preference is missing. * * @param aNames will be filled with the custom field names that should be shown by default */ virtual void GetDefaultSymbolFields( std::vector& aNames ) { return GetAvailableSymbolFields( aNames ); } /** * Return an error string to the caller. * * This is useful for schematic loaders that can load partial schematics where throwing * an exception would be problematic such as the KiCad legacy plugin. * * @return an unformatted string containing errors if any. */ virtual const wxString& GetError() const; /** * Some library plugins need to have access to their parent library table. * @param aTable is the table this plugin is registered within. */ virtual void SetLibTable( SYMBOL_LIB_TABLE* aTable ) {} //----------------------------------------------------- /* The compiler writes the "zero argument" constructor for a SCH_IO automatically if you do not provide one. If you decide you need to provide a zero argument constructor of your own design, that is allowed. It must be public, and it is what the SCH_IO_MGR uses. Parameters may be passed into a SCH_IO via the PROPERTIES variable for any of the public API functions which take one. */ virtual ~SCH_IO() { } protected: SCH_IO( const wxString& aName ) : IO_BASE( aName ) {} }; #endif // SCH_IO_H_