571 lines
24 KiB
C++
571 lines
24 KiB
C++
#ifndef _SCH_IO_MGR_H_
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#define _SCH_IO_MGR_H_
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/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2016 CERN
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* Copyright (C) 2016-2017 KiCad Developers, see CHANGELOG.TXT for contributors.
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*
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* @author Wayne Stambaugh <stambaughw@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 3
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <richio.h>
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#include <import_export.h>
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#include <map>
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#include <enum_vector.h>
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class SCH_SHEET;
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class SCH_SCREEN;
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class SCH_PLUGIN;
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class KIWAY;
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class LIB_PART;
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class LIB_ALIAS;
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class PART_LIB;
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class PROPERTIES;
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/**
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* Class SCH_IO_MGR
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* is a factory which returns an instance of a #SCH_PLUGIN.
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*/
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class SCH_IO_MGR
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{
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public:
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/**
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* A set of file types that the #SCH_IO_MGR knows about, and for which there
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* has been a plugin written.
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*/
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DEFINE_ENUM_VECTOR( SCH_FILE_T,
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{
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SCH_LEGACY, ///< Legacy Eeschema file formats prior to s-expression.
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// SCH_KICAD, ///< The s-expression version of the schematic file formats.
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SCH_EAGLE, ///< Autodesk Eagle file format
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// Add your schematic type here.
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// ALTIUM,
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// etc.
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} )
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/**
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* Return a #SCH_PLUGIN which the caller can use to import, export, save, or load
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* design documents.
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*
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* The returned #SCH_PLUGIN, may be reference counted, so please call PluginRelease()
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* when you are done using the returned #SCH_PLUGIN. It may or may not be code running
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* from a DLL/DSO.
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*
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* @param aFileType is from #SCH_FILE_T and tells which plugin to find.
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*
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* @return the plugin corresponding to aFileType or NULL if not found.
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* Caller owns the returned object, and must call PluginRelease when done using it.
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*/
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APIEXPORT
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static SCH_PLUGIN* FindPlugin( SCH_FILE_T aFileType );
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/**
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* Release a #SCH_PLUGIN back to the system, and may cause it to be unloaded from memory.
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*
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* @param aPlugin is the one to be released, and which is no longer usable
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* after calling this.
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*/
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static void ReleasePlugin( SCH_PLUGIN* aPlugin );
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/**
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* Return a brief name for a plugin, given aFileType enum.
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*/
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static const wxString ShowType( SCH_FILE_T aFileType );
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/**
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* Return the #SCH_FILE_T from the corresponding plugin type name: "kicad", "legacy", etc.
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*/
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static SCH_FILE_T EnumFromStr( const wxString& aFileType );
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/**
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* Return the file extension for \a aFileType.
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*
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* @param aFileType is the #SCH_FILE_T type.
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*
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* @return the file extension for \a aFileType or an empty string if \a aFileType is invalid.
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*/
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static const wxString GetFileExtension( SCH_FILE_T aFileType );
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/**
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* Return a plugin type given a footprint library's libPath.
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*/
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static SCH_FILE_T GuessPluginTypeFromLibPath( const wxString& aLibPath );
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/**
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* Load the requested #SCH_PLUGIN and if found, calls the SCH_PLUGIN->Load(..) function
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* on it using the arguments passed to this function. After the SCH_PLUGIN->Load()
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* function returns, the #SCH_PLUGIN is Released() as part of this call.
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*
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* @param aFileType is the #SCH_FILE_T of file to load.
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*
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* @param aFileName is the name of the file to load.
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*
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* @param aKiway is the #KIWAY object used to access the component libraries loaded
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* by the project.
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*
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* @param aAppendToMe is an existing #SCH_SHEET to append to, use NULL if a new
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* #SCH_SHEET load is wanted.
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*
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* @param aProperties is an associative array that allows the caller to pass additional
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* tuning parameters to the #SCH_PLUGIN.
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*
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* @return the loaded schematic which the caller owns. This is never NULL because
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* exception thrown if an error occurs.
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*
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* @throw IO_ERROR if the #SCH_PLUGIN cannot be found, file cannot be found
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* or file cannot be loaded.
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*/
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static SCH_SHEET* Load( SCH_FILE_T aFileType, const wxString& aFileName, KIWAY* aKiway,
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SCH_SHEET* aAppendToMe = NULL, const PROPERTIES* aProperties = NULL );
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/**
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* Write either a full aSchematic to a storage file in a format that this
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* implementation knows about, or it can be used to write a portion of
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* aSchematic to a special kind of export file.
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*
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* @param aFileType is the #SCH_FILE_T of file to save.
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*
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* @param aFileName is the name of a file to save to on disk.
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*
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* @param aSchematic is the #SCH_SCREEN document (data tree) to save or export to disk.
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*
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* @param aKiway is the #KIWAY object used to access the component libraries loaded
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* by the project.
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*
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* @param aProperties is an associative array that can be used to tell the
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* saver how to save the file, because it can take any number of
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* additional named tuning arguments that the plugin is known to support.
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* The caller continues to own this object (plugin may not delete it), and
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* plugins should expect it to be optionally NULL.
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*
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* @throw IO_ERROR if there is a problem saving or exporting.
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*/
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static void Save( SCH_FILE_T aFileType, const wxString& aFileName,
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SCH_SCREEN* aSchematic, KIWAY* aKiway, const PROPERTIES* aProperties = NULL );
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};
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/**
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* Base class that schematic file and library loading and saving plugins should derive from.
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* Implementations can provide either Load() or Save() functions, or both.
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* SCH_PLUGINs throw exceptions, so it is best that you wrap your calls to these
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* functions in a try catch block. Plugins throw exceptions because it is illegal
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* for them to have any user interface calls in them whatsoever, i.e. no windowing
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* or screen printing at all.
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*
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* <pre>
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* try
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* {
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* SCH_IO_MGR::Load(...);
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* or
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* SCH_IO_MGR::Save(...);
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* }
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* catch( const IO_ERROR& ioe )
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* {
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* // grab text from ioe, show in error window.
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* }
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* </pre>
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*/
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class SCH_PLUGIN
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{
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public:
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//-----<PUBLIC SCH_PLUGIN API>-------------------------------------------------
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/**
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* Returns a brief hard coded name for this SCH_PLUGIN.
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*/
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virtual const wxString GetName() const = 0;
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/**
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* Returns the file extension for the #SCH_PLUGIN.
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*/
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virtual const wxString GetFileExtension() const = 0;
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/**
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* Return the modification hash from the library cache.
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*
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* @note This is temporary until the new s-expr file format is implement. The new file
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* format will embed symbols instead of referencing them from the library. This
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* function can be removed when the new file format is implemented.
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*
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* @return the modification hash of the library cache.
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*/
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virtual int GetModifyHash() const = 0;
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virtual void SaveLibrary( const wxString& aFileName, const PROPERTIES* aProperties = NULL );
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/**
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* Load information from some input file format that this #SCH_PLUGIN implementation
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* knows about, into either a new #SCH_SHEET or an existing one. This may be used to load an
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* entire new #SCH_SHEET, or to augment an existing one if \a aAppendToMe is not NULL.
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*
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* @param aFileName is the name of the file to use as input and may be foreign in
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* nature or native in nature.
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*
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* @param aKiway is the #KIWAY object used to access the component libraries loaded
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* by the project.
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*
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* @param aAppendToMe is an existing #SCH_SHEET to append to, but if NULL then this means
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* "do not append, rather load anew".
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*
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* @param aProperties is an associative array that can be used to tell the loader how to
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* load the file, because it can take any number of additional named
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* arguments that the plugin is known to support. These are tuning
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* parameters for the import or load. The caller continues to own
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* this object (plugin may not delete it), and plugins should expect
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* it to be optionally NULL.
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*
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* @return the successfully loaded schematic, or the same one as \a aAppendToMe
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* if \a aAppendToMe was not NULL, and the caller owns it.
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*
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* @throw IO_ERROR if there is a problem loading, and its contents should say what went
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* wrong, using line number and character offsets of the input file if
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* possible.
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*/
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virtual SCH_SHEET* Load( const wxString& aFileName, KIWAY* aKiway,
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SCH_SHEET* aAppendToMe = NULL, const PROPERTIES* aProperties = NULL );
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/**
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* Write \a aSchematic to a storage file in a format that this #SCH_PLUGIN implementation
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* knows about, or it can be used to write a portion of \a aSchematic to a special kind
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* of export file.
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*
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* @param aFileName is the name of a file to save to on disk.
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*
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* @param aSchematic is the class #SCH_SCREEN in memory document tree from which to extract
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* information when writing to \a aFileName. The caller continues to
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* own the SCHEMATIC, and the plugin should refrain from modifying the
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* SCHEMATIC if possible.
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*
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* @param aKiway is the #KIWAY object used to access the component libraries loaded
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* by the project.
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*
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* @param aProperties is an associative array that can be used to tell the saver how to
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* save the file, because it can take any number of additional named
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* tuning arguments that the plugin is known to support. The caller
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* continues to own this object (plugin may not delete it), and plugins
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* should expect it to be optionally NULL.
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*
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* @throw IO_ERROR if there is a problem saving or exporting.
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*/
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virtual void Save( const wxString& aFileName, SCH_SCREEN* aSchematic, KIWAY* aKiway,
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const PROPERTIES* aProperties = NULL );
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virtual size_t GetSymbolLibCount( const wxString& aLibraryPath,
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const PROPERTIES* aProperties = NULL );
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/**
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* Populate a list of #LIB_PART alias names contained within the library \a aLibraryPath.
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*
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* @param aAliasNameList is an array to populate with the #LIB_ALIAS names associated with
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* the library.
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*
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* @param aLibraryPath is a locator for the "library", usually a directory, file,
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* or URL containing one or more #LIB_PART objects.
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*
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* @param aProperties is an associative array that can be used to tell the plugin anything
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* needed about how to perform with respect to \a aLibraryPath. The
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* caller continues to own this object (plugin may not delete it), and
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* plugins should expect it to be optionally NULL.
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*
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* @throw IO_ERROR if the library cannot be found, the part library cannot be loaded.
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*/
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virtual void EnumerateSymbolLib( wxArrayString& aAliasNameList,
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const wxString& aLibraryPath,
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const PROPERTIES* aProperties = NULL );
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/**
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* Populate a list of #LIB_PART aliases contained within the library \a aLibraryPath.
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*
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* @param aAliasList is an array to populate with the #LIB_ALIAS pointers associated with
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* the library.
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*
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* @param aLibraryPath is a locator for the "library", usually a directory, file,
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* or URL containing one or more #LIB_PART objects.
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*
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* @param aProperties is an associative array that can be used to tell the plugin anything
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* needed about how to perform with respect to \a aLibraryPath. The
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* caller continues to own this object (plugin may not delete it), and
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* plugins should expect it to be optionally NULL.
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*
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* @throw IO_ERROR if the library cannot be found, the part library cannot be loaded.
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*/
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virtual void EnumerateSymbolLib( std::vector<LIB_ALIAS*>& aAliasList,
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const wxString& aLibraryPath,
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const PROPERTIES* aProperties = NULL );
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/**
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* Load a #LIB_ALIAS object having \a aAliasName from the \a aLibraryPath containing
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* a library format that this #SCH_PLUGIN knows about. The #LIB_PART should be accessed
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* indirectly using the #LIB_ALIAS it is associated with.
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*
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* @param aLibraryPath is a locator for the "library", usually a directory, file,
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* or URL containing several symbols.
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*
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* @param aAliasName is the alias name of the #LIB_PART to load.
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*
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* @param aProperties is an associative array that can be used to tell the loader
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* implementation to do something special, because it can take
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* any number of additional named tuning arguments that the plugin
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* is known to support. The caller continues to own this object
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* (plugin may not delete it), and plugins should expect it to be
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* optionally NULL.
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*
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* @return the alias if found caller shares it or NULL if not found.
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*
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* @throw IO_ERROR if the library cannot be found or read. No exception
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* is thrown in the case where aAliasName cannot be found.
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*/
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virtual LIB_ALIAS* LoadSymbol( const wxString& aLibraryPath, const wxString& aAliasName,
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const PROPERTIES* aProperties = NULL );
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/**
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* Write \a aSymbol to an existing library located at \a aLibraryPath. If a #LIB_PART
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* by the same name already exists or there are any conflicting alias names, the new
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* #LIB_PART will silently overwrite any existing aliases and/or part becaue libraries
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* cannot have duplicate alias names. It is the responsibility of the caller to check
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* the library for conflicts before saving.
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*
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* @param aLibraryPath is a locator for the "library", usually a directory, file,
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* or URL containing several symbols.
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*
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* @param aSymbol is what to store in the library. The library is refreshed and the
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* caller must update any #LIB_PART pointers that may have changed.
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*
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* @param aProperties is an associative array that can be used to tell the
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* saver how to save the symbol, because it can take any number of
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* additional named tuning arguments that the plugin is known to support.
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* The caller continues to own this object (plugin may not delete it), and
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* plugins should expect it to be optionally NULL.
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*
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* @throw IO_ERROR if there is a problem saving.
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*/
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virtual void SaveSymbol( const wxString& aLibraryPath, const LIB_PART* aSymbol,
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const PROPERTIES* aProperties = NULL );
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/**
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* Delete \a aAliasName from the library at \a aLibraryPath.
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*
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* If \a aAliasName refers the the root #LIB_PART object, the part is renamed to
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* the next or previous #LIB_ALIAS in the #LIB_PART if one exists. If the #LIB_ALIAS
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* is the last alias referring to the root #LIB_PART, the #LIB_PART is also removed
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* from the library.
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*
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* @param aLibraryPath is a locator for the "library", usually a directory, file,
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* or URL containing several symbols.
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*
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* @param aAliasName is the name of a #LIB_ALIAS to delete from the specified library.
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*
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* @param aProperties is an associative array that can be used to tell the library
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* delete function anything special, because it can take any number
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* of additional named tuning arguments that the plugin is known to
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* support. The caller continues to own this object (plugin may not
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* delete it), and plugins should expect it to be optionally NULL.
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*
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* @throw IO_ERROR if there is a problem finding the alias or the library or deleting it.
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*/
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virtual void DeleteAlias( const wxString& aLibraryPath, const wxString& aAliasName,
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const PROPERTIES* aProperties = NULL );
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/**
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* Delete the entire #LIB_PART associated with \a aAliasName from the library
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* \a aLibraryPath.
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*
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* @param aLibraryPath is a locator for the "library", usually a directory, file,
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* or URL containing several symbols.
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*
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* @param aAliasName is the name of a #LIB_ALIAS associated with it's root #LIB_PART
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* object to delete from the specified library.
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*
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* @param aProperties is an associative array that can be used to tell the library
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* delete function anything special, because it can take any number
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* of additional named tuning arguments that the plugin is known to
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* support. The caller continues to own this object (plugin may not
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* delete it), and plugins should expect it to be optionally NULL.
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*
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* @throw IO_ERROR if there is a problem finding the alias or the library or deleting it.
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*/
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virtual void DeleteSymbol( const wxString& aLibraryPath, const wxString& aAliasName,
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const PROPERTIES* aProperties = NULL );
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/**
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* Create a new empty symbol library at \a aLibraryPath. It is an error to attempt
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* to create an existing library or to attempt to create on a "read only" location.
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*
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* @param aLibraryPath is a locator for the "library", usually a directory, file,
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* or URL containing several footprints.
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*
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* @param aProperties is an associative array that can be used to tell the library
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* create function anything special, because it can take any number
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* of additional named tuning arguments that the plugin is known to
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* support. The caller continues to own this object (plugin may not
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* delete it), and plugins should expect it to be optionally NULL.
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*
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* @throw IO_ERROR if there is a problem finding the library, or creating it.
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*/
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virtual void CreateSymbolLib( const wxString& aLibraryPath,
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const PROPERTIES* aProperties = NULL );
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/**
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* Delete an existing symbol library and returns true if successful, or if library
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* does not exist returns false, or throws an exception if library exists but is read
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* only or cannot be deleted for some other reason.
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*
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* @param aLibraryPath is a locator for the "library", usually a directory or file
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* which will contain symbols.
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*
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* @param aProperties is an associative array that can be used to tell the library
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* delete implementation function anything special, because it can
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* take any number of additional named tuning arguments that the
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* plugin is known to support. The caller continues to own this
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* object (plugin may not delete it), and plugins should expect
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* it to be optionally NULL.
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*
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* @return true if library deleted or false if library did not exist.
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*
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* @throw IO_ERROR if there is a problem deleting an existing library.
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*/
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virtual bool DeleteSymbolLib( const wxString& aLibraryPath,
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const PROPERTIES* aProperties = NULL );
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/**
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* Return true if the library at \a aLibraryPath is writable. (Often
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* system libraries are read only because of where they are installed.)
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*
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* @param aLibraryPath is a locator for the "library", usually a directory, file,
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* or URL containing several symbols.
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*
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* @throw IO_ERROR if no library at aLibraryPath exists.
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*/
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virtual bool IsSymbolLibWritable( const wxString& aLibraryPath );
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/**
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* Append supported #SCH_PLUGIN options to \a aListToAppenTo along with internationalized
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* descriptions. Options are typically appended so that a derived SCH_PLUGIN can call
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* its base class function by the same name first, thus inheriting options declared there.
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* (Some base class options could pertain to all Symbol*() functions in all derived
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* SCH_PLUGINs.) Note that since aListToAppendTo is a PROPERTIES object, all options
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* will be unique and last guy wins.
|
|
*
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* @param aListToAppendTo holds a tuple of
|
|
* <dl>
|
|
* <dt>option</dt>
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|
* <dd>This eventually is what shows up into the fp-lib-table "options"
|
|
* field, possibly combined with others.</dd>
|
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* <dt>internationalized description</dt>
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|
* <dd>The internationalized description is displayed in DIALOG_FP_SCH_PLUGIN_OPTIONS.
|
|
* It may be multi-line and be quite explanatory of the option.</dd>
|
|
* </dl>
|
|
* <br>
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|
* 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_PLUGIN, which has been avoided to date.
|
|
*/
|
|
virtual void SymbolLibOptions( PROPERTIES* aListToAppendTo ) const;
|
|
|
|
/**
|
|
* Return true if the first line in @a aFileName begins with the expected header.
|
|
*
|
|
* @param aFileName is the name of the file to use as input
|
|
*
|
|
*/
|
|
virtual bool CheckHeader( const wxString& aFileName );
|
|
|
|
/**
|
|
* 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;
|
|
|
|
//-----</PUBLIC SCH_PLUGIN API>------------------------------------------------
|
|
|
|
|
|
/* The compiler writes the "zero argument" constructor for a SCH_PLUGIN
|
|
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_PLUGIN via the PROPERTIES variable for any of the public
|
|
API functions which take one.
|
|
*/
|
|
virtual ~SCH_PLUGIN() { }
|
|
|
|
|
|
/**
|
|
* Helper object to release a #SCH_PLUGIN in the context of a potential thrown exception
|
|
* through its destructor.
|
|
*/
|
|
class SCH_PLUGIN_RELEASER
|
|
{
|
|
SCH_PLUGIN* plugin;
|
|
|
|
// private assignment operator so it's illegal
|
|
SCH_PLUGIN_RELEASER& operator=( SCH_PLUGIN_RELEASER& aOther ) { return *this; }
|
|
|
|
// private copy constructor so it's illegal
|
|
SCH_PLUGIN_RELEASER( const SCH_PLUGIN_RELEASER& aOther ) {}
|
|
|
|
public:
|
|
SCH_PLUGIN_RELEASER( SCH_PLUGIN* aPlugin = NULL ) :
|
|
plugin( aPlugin )
|
|
{
|
|
}
|
|
|
|
~SCH_PLUGIN_RELEASER()
|
|
{
|
|
if( plugin )
|
|
release();
|
|
}
|
|
|
|
void release()
|
|
{
|
|
SCH_IO_MGR::ReleasePlugin( plugin );
|
|
plugin = NULL;
|
|
}
|
|
|
|
void set( SCH_PLUGIN* aPlugin )
|
|
{
|
|
if( plugin )
|
|
release();
|
|
plugin = aPlugin;
|
|
}
|
|
|
|
operator SCH_PLUGIN* () const
|
|
{
|
|
return plugin;
|
|
}
|
|
|
|
SCH_PLUGIN* operator -> () const
|
|
{
|
|
return plugin;
|
|
}
|
|
};
|
|
};
|
|
|
|
#endif // _SCH_IO_MGR_H_
|