kicad/include/lib_table_base.h

521 lines
17 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2010-2012 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
* Copyright (C) 2012-2017 Wayne Stambaugh <stambaughw@verizon.net>
* Copyright (C) 2012-2017 KiCad Developers, see change_log.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
*/
#ifndef _LIB_TABLE_BASE_H_
#define _LIB_TABLE_BASE_H_
#include <map>
#include <boost/interprocess/exceptions.hpp>
#include <boost/ptr_container/ptr_vector.hpp>
#include <boost/noncopyable.hpp>
#include <project.h>
#include <properties.h>
#include <richio.h>
#define FP_LATE_ENVVAR 1 ///< late=1/early=0 environment variable expansion
class OUTPUTFORMATTER;
class LIB_TABLE_LEXER;
class LIB_ID;
class LIB_TABLE_ROW;
class LIB_TABLE_GRID;
class IO_ERROR;
typedef boost::ptr_vector< LIB_TABLE_ROW > LIB_TABLE_ROWS;
typedef LIB_TABLE_ROWS::iterator LIB_TABLE_ROWS_ITER;
typedef LIB_TABLE_ROWS::const_iterator LIB_TABLE_ROWS_CITER;
/**
* Function new_clone
*
* Allows boost pointer containers to make clones of the data stored in them. Since they
* store pointers the data is cloned. Copying and assigning pointers would cause ownership
* issues if the standard C++ containers were used.
*/
LIB_TABLE_ROW* new_clone( const LIB_TABLE_ROW& aRow );
/**
* Class LIB_TABLE_ROW
*
* holds a record identifying a library accessed by the appropriate plug in object in the
* #LIB_TABLE. This is an abstract base class from which to derive library specific rows.
*/
class LIB_TABLE_ROW : boost::noncopyable
{
public:
LIB_TABLE_ROW()
{
}
virtual ~LIB_TABLE_ROW()
{
}
LIB_TABLE_ROW( const wxString& aNick, const wxString& aURI, const wxString& aOptions,
const wxString& aDescr = wxEmptyString ) :
nickName( aNick ),
description( aDescr )
{
properties.reset();
SetOptions( aOptions );
SetFullURI( aURI );
}
bool operator==( const LIB_TABLE_ROW& r ) const;
bool operator!=( const LIB_TABLE_ROW& r ) const { return !( *this == r ); }
/**
* Function GetNickName
*
* @return the logical name of this library table row.
*/
const wxString& GetNickName() const { return nickName; }
/**
* Function SetNickName
*
* changes the logical name of this library, useful for an editor.
*/
void SetNickName( const wxString& aNickName ) { nickName = aNickName; }
/**
* Function GetType
*
* is a pure virtual function that returns the type of LIB represented by this row.
*/
virtual const wxString GetType() const = 0;
/**
* Function SetType
*
* is a pure virtual function changes the type represented by this row that must
* be implemented in the derived object to provide the library table row type.
*/
virtual void SetType( const wxString& aType ) = 0;
/**
* Function GetFullURI
*
* returns the full location specifying URI for the LIB, either in original
* UI form or in environment variable expanded form.
*
* @param aSubstituted Tells if caller wanted the substituted form, else not.
*/
const wxString GetFullURI( bool aSubstituted = false ) const;
/**
* Function SetFullURI
*
* changes the full URI for the library.
*/
void SetFullURI( const wxString& aFullURI );
/**
* Function GetOptions
*
* returns the options string, which may hold a password or anything else needed to
* instantiate the underlying LIB_SOURCE.
*/
const wxString& GetOptions() const { return options; }
/**
* Function SetOptions
*/
void SetOptions( const wxString& aOptions );
/**
* Function GetDescr
*
* returns the description of the library referenced by this row.
*/
const wxString& GetDescr() const { return description; }
/**
* Function SetDescr
*
* changes the description of the library referenced by this row.
*/
void SetDescr( const wxString& aDescr ) { description = aDescr; }
/**
* Function GetProperties
*
* returns the constant PROPERTIES for this library (LIB_TABLE_ROW). These are
* the "options" in a table.
*/
const PROPERTIES* GetProperties() const { return properties.get(); }
/**
* Function Format
*
* serializes this object as utf8 text to an OUTPUTFORMATTER, and tries to
* make it look good using multiple lines and indentation.
*
* @param out is an #OUTPUTFORMATTER
* @param nestLevel is the indentation level to base all lines of the output.
* Actual indentation will be 2 spaces for each nestLevel.
*/
void Format( OUTPUTFORMATTER* out, int nestLevel ) const;
static void Parse( std::unique_ptr< LIB_TABLE_ROW >& aRow, LIB_TABLE_LEXER* in );
LIB_TABLE_ROW* clone() const
{
return do_clone();
}
protected:
LIB_TABLE_ROW( const LIB_TABLE_ROW& aRow ) :
nickName( aRow.nickName ),
uri_user( aRow.uri_user ),
#if !FP_LATE_ENVVAR
uri_expanded( aRow.uri_expanded ),
#endif
options( aRow.options ),
description( aRow.description )
{
if( aRow.properties )
properties.reset( new PROPERTIES( *aRow.properties.get() ) );
else
properties.reset();
}
void operator=( const LIB_TABLE_ROW& aRow );
private:
virtual LIB_TABLE_ROW* do_clone() const = 0;
void setProperties( PROPERTIES* aProperties );
wxString nickName;
wxString uri_user; ///< what user entered from UI or loaded from disk
#if !FP_LATE_ENVVAR
wxString uri_expanded; ///< from ExpandSubstitutions()
#endif
wxString options;
wxString description;
std::unique_ptr< PROPERTIES > properties;
};
/**
* Class LIB_TABLE
*
* holds #LIB_TABLE_ROW records (rows), and can be searched based on library nickname.
* <p>
* This class owns the <b>library table</b>, which is like fstab in concept and maps
* logical library name to the library URI, type, and options. It is heavily based on
* the SWEET parser work done by Dick Hollenbeck and can be seen in new/sch_lib_table.h.
* A library table has the following columns:
* <ul>
* <li> Logical Library Name (Nickname)
* <li> Library Type, used to determine which plugin to load to access the library.
* <li> Library URI. The full URI to the library source, form dependent on Type.
* <li> Options, used for as yet to be defined information such as user names or passwords
* </ul>
* </p>
* <p>
* The Library Type can be one of:
* <ul>
* <li> "file"
* <li> "ftp"
* <li> "http"
* </ul>
* </p>
* <p>
* For now, the Library URI types needed to support the various types can be one of those
* shown below, which are typical of each type:
* <ul>
* <li> "file://C:/mylibdir"
* <li> "ftp://kicad.org/partlib/trunk"
* <li> "http://kicad.org/partlib"
* </ul>
* </p>
* <p>
* The library table is built up from several additive entries (table fragments), and the
* final table is a (conceptual) merging of the table fragments. Two anticipated sources
* of the entries are a personal table saved in the KiCad configuration and a project
* resident table that resides in project file. The project footprint table entries are
* considered a higher priority in the final dynamically assembled library table. An row
* in the project file contribution to the library table takes precedence over the personal
* table if there is a collision of logical library names. Otherwise, the entries simply
* combine without issue to make up the applicable library table.
* </p>
*
* @author Wayne Stambaugh
*/
class LIB_TABLE : public PROJECT::_ELEM
{
friend class DIALOG_FP_LIB_TABLE;
friend class LIB_TABLE_GRID;
public:
/**
* Function Parse
*
* Parses the \a #LIB_TABLE_LEXER s-expression library table format into the appropriate
* #LIB_TABLE_ROW objects.
*
* @param aLexer is the lexer to parse.
*
* @throw IO_ERROR if an I/O error occurs during parsing.
* @throw PARSER_ERROR if the lexer format to parse is invalid.
* @throw boost::bad_pointer if an any attempt to add an invalid pointer to the
* boost::ptr_vector.
* @throw boost::bad_index if an index outside the row table bounds is accessed.
*/
virtual void Parse( LIB_TABLE_LEXER* aLexer ) = 0;
/**
* Function Format
*
* Generates the table s-expression format to the \a aOutput with an indention level
* of \a aIndentLevel.
*
* @param aOutput is the #OUTPUTFORMATER to format the table into.
* @param aIndentLevel is the indentation level (2 spaces) to indent.
*
* @throw IO_ERROR if an I/O error occurs during output.
* @throw boost::interprocess::lock_except if separate process attempt to access the table.
*/
virtual void Format( OUTPUTFORMATTER* aOutput, int aIndentLevel ) const = 0;
/**
* Constructor LIB_TABLE
* builds a library table by pre-pending this table fragment in front of
* @a aFallBackTable. Loading of this table fragment is done by using Parse().
*
* @param aFallBackTable is another LIB_TABLE which is searched only when
* a row is not found in this table. No ownership is
* taken of aFallBackTable.
*/
LIB_TABLE( LIB_TABLE* aFallBackTable = NULL );
virtual ~LIB_TABLE();
/// Delete all rows.
void Clear()
{
rows.clear();
nickIndex.clear();
}
bool operator==( const LIB_TABLE& r ) const
{
if( rows.size() == r.rows.size() )
{
unsigned i;
for( i = 0; i < rows.size() && rows[i] == r.rows[i]; ++i )
;
if( i == rows.size() )
return true;
}
return false;
}
bool operator!=( const LIB_TABLE& r ) const { return !( *this == r ); }
int GetCount() { return rows.size(); }
LIB_TABLE_ROW* At( int aIndex ) { return &rows[aIndex]; }
/**
* Function IsEmpty
*
* @param aIncludeFallback is used to determine if the fallback table should be
* included in the test.
*
* @return true if the footprint library table is empty.
*/
bool IsEmpty( bool aIncludeFallback = true );
/**
* Function GetDescription
*
* @return the library description from @a aNickname, or an empty string
* if @a aNickname does not exist.
*/
const wxString GetDescription( const wxString& aNickname );
/**
* Function GetLogicalLibs
*
* returns the logical library names, all of them that are pertinent to
* a look up done on this LIB_TABLE.
*/
std::vector<wxString> GetLogicalLibs();
/**
* Function InsertRow
*
* adds aRow if it does not already exist or if doReplace is true. If doReplace
* is not true and the key for aRow already exists, the function fails and returns false.
*
* The key for the table is the nickName, and all in this table must be unique.
*
* @param aRow is the new row to insert, or to forcibly add if doReplace is true.
* @param doReplace if true, means insert regardless of whether aRow's key already
* exists. If false, then fail if the key already exists.
*
* @return bool - true if the operation succeeded.
*/
bool InsertRow( LIB_TABLE_ROW* aRow, bool doReplace = false );
/**
* Function FindRowByURI
*
* @return a #LIB_TABLE_ROW pointer if \a aURI is found in this table or in any chained
* fallBack table fragments, else NULL.
*/
const LIB_TABLE_ROW* FindRowByURI( const wxString& aURI );
/**
* Function Load
*
* loads the library table using the path defined by \a aFileName aFallBackTable.
*
* @param aFileName contains the full path to the s-expression file.
*
* @throw IO_ERROR if an error occurs attempting to load the footprint library
* table.
*/
void Load( const wxString& aFileName ) throw( IO_ERROR );
/**
* Function Save
*
* writes this library table to \a aFileName in s-expression form.
*
* @param aFileName is the name of the file to write to.
*/
void Save( const wxString& aFileName ) const
throw( IO_ERROR, boost::interprocess::lock_exception );
/**
* Search the paths all of the #LIB_TABLE_ROWS of the #LIB_TABLE and add all of the
* environment variable substitutions to \a aEnvVars.
*
* This will only add unique environment variables to the list. Duplicates are ignored.
*
* @param aEnvVars is the array to load the environment variables.
*
* @return the number of unique environment variables found in the table.
*/
size_t GetEnvVars( wxArrayString& aEnvVars ) const;
/**
* Function ParseOptions
*
* parses @a aOptionsList and places the result into a PROPERTIES object which is
* returned. If the options field is empty, then the returned PROPERTIES will be
* a NULL pointer.
* <p>
* Typically aOptionsList comes from the "options" field within a LIB_TABLE_ROW and
* the format is simply a comma separated list of name value pairs. e.g.:
* [name1[=value1][|name2[=value2]]] etc. When using the UI to create or edit
* a library table, this formatting is handled for you.
* </p>
*/
static PROPERTIES* ParseOptions( const std::string& aOptionsList );
/**
* Function FormatOptions
*
* returns a list of options from the aProperties parameter. The name=value
* pairs will be separated with the '|' character. The =value portion may not
* be present. You might expect something like "name1=value1|name2=value2|flag_me".
* Notice that flag_me does not have a value. This is ok.
*
* @param aProperties is the PROPERTIES to format or NULL. If NULL the returned
* string will be empty.
*/
static UTF8 FormatOptions( const PROPERTIES* aProperties );
/**
* Function ExpandSubstitutions
*
* replaces any environment variable references with their values and is here to fully
* embellish the TABLE_ROW::uri in a platform independent way. This enables library
* tables to have platform dependent environment variables in them, allowing for a
* uniform table across platforms.
*/
static const wxString ExpandSubstitutions( const wxString& aString );
protected:
/**
* Function findRow
* returns a LIB_TABLE_ROW if aNickname is found in this table or in any chained
* fallBack table fragment, else NULL.
*/
LIB_TABLE_ROW* findRow( const wxString& aNickname ) const;
void reindex()
{
nickIndex.clear();
for( LIB_TABLE_ROWS_ITER it = rows.begin(); it != rows.end(); ++it )
nickIndex.insert( INDEX_VALUE( it->GetNickName(), it - rows.begin() ) );
}
void ensureIndex()
{
// The dialog lib table editor may not maintain the nickIndex.
// Lazy indexing may be required. To handle lazy indexing, we must enforce
// that "nickIndex" is either empty or accurate, but never inaccurate.
if( !nickIndex.size() )
reindex();
}
LIB_TABLE_ROWS rows;
/// this is a non-owning index into the LIB_TABLE_ROWS table
typedef std::map<wxString,int> INDEX; // "int" is std::vector array index
typedef INDEX::iterator INDEX_ITER;
typedef INDEX::const_iterator INDEX_CITER;
typedef INDEX::value_type INDEX_VALUE;
/// this particular key is the nickName within each row.
INDEX nickIndex;
LIB_TABLE* fallBack;
};
#endif // _LIB_TABLE_BASE_H_