sch_reference_list.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 1992-2011 jean-pierre Charras <jean-pierre.charras@gipsa-lab.inpg.fr>
 * Copyright (C) 2011 Wayne Stambaugh <stambaughw@gmail.com>
 * Copyright (C) 1992-2021 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
 */

#ifndef _SCH_REFERENCE_LIST_H_
#define _SCH_REFERENCE_LIST_H_

#include <map>

#include <lib_symbol.h>
#include <macros.h>
#include <sch_sheet_path.h>
#include <sch_symbol.h>
#include <sch_text.h>
#include <erc_settings.h>

class SCH_REFERENCE
{
public:
    SCH_REFERENCE() :
            m_sheetPath()
    {
        m_rootSymbol      = nullptr;
        m_libPart         = nullptr;
        m_unit            = 0;
        m_isNew           = false;
        m_numRef          = 0;
        m_flag            = 0;
        m_sheetNum        = 0;
    }

    SCH_REFERENCE( SCH_SYMBOL* aSymbol, LIB_SYMBOL* aLibSymbol, const SCH_SHEET_PATH& aSheetPath );

    SCH_SYMBOL* GetSymbol() const           { return m_rootSymbol; }

    LIB_SYMBOL* GetLibPart() const          { return m_libPart; }

    const SCH_SHEET_PATH& GetSheetPath() const { return m_sheetPath; }

    SCH_SHEET_PATH& GetSheetPath()             { return m_sheetPath; }

    int GetUnit() const                        { return m_unit; }
    void SetUnit( int aUnit )                  { m_unit = aUnit; }

    const wxString GetValue() const            { return m_value; }
    void SetValue( const wxString& aValue )    { m_value = aValue; }

    const wxString GetFootprint() const        { return m_footprint; }
    void SetFootprint( const wxString& aFP )   { m_footprint = aFP; }

    void SetSheetNumber( int aSheetNumber )    { m_sheetNum = aSheetNumber; }

    const wxString GetPath() const
    {
        return m_rootSymbol ? m_sheetPath.PathAsString() + m_rootSymbol->m_Uuid.AsString() : "";
    }

    void Annotate();

    void Split();

    void SetRef( const wxString& aReference ) { m_ref = aReference; }
    wxString GetRef() const { return m_ref; }

    void SetRefStr( const std::string& aReference ) { m_ref = aReference; }
    const char* GetRefStr() const { return m_ref.c_str(); }

    wxString GetFullRef() const
    {
        if( GetSymbol()->GetUnitCount() > 1 )
            return GetRef() + LIB_SYMBOL::SubReference( GetUnit() );
        else
            return GetRef();
    }

    wxString GetRefNumber() const
    {
        wxString ref;

        if( m_numRef < 0 )
            return wxT( "?" );

        // To avoid a risk of duplicate, for power symbols the ref number is 0nnn instead of nnn.
        // Just because sometimes only power symbols are annotated
        if( GetLibPart() && GetLibPart()->IsPower() )
            ref = wxT( "0" );

        return ref << m_numRef;
    }

    int CompareValue( const SCH_REFERENCE& item ) const
    {
        return m_value.Cmp( item.m_value );
    }

    int CompareRef( const SCH_REFERENCE& item ) const
    {
        return m_ref.compare( item.m_ref );
    }

    int CompareLibName( const SCH_REFERENCE& item ) const
    {
        return m_rootSymbol->GetLibId().GetLibItemName().compare(
            item.m_rootSymbol->GetLibId().GetLibItemName() );
    }

    bool IsSameInstance( const SCH_REFERENCE& other ) const
    {
        // Only compare symbol and path.
        // We may have changed the unit number or the designator but
        // can still be referencing the same instance.
        return GetSymbol() == other.GetSymbol()
               && GetSheetPath().Path() == other.GetSheetPath().Path();
    }

    bool IsUnitsLocked()
    {
        if( m_libPart )
            return m_libPart->UnitsLocked();
        else
            return true; // Assume units locked when we don't have a library
    }

private:
    friend class SCH_REFERENCE_LIST;

    UTF8            m_ref;               // it's private, use the accessors please
    SCH_SYMBOL*     m_rootSymbol;        
    LIB_SYMBOL*     m_libPart;           
    wxPoint         m_symbolPos;         
    int             m_unit;              
    wxString        m_value;             
    wxString        m_footprint;         
    SCH_SHEET_PATH  m_sheetPath;         
    bool            m_isNew;             
    int             m_sheetNum;          
    KIID            m_symbolUuid;        
    int             m_numRef;            
    int             m_flag;
};


typedef std::function<void( ERCE_T aType, const wxString& aMsg, SCH_REFERENCE* aItemA,
                            SCH_REFERENCE* aItemB )> ANNOTATION_ERROR_HANDLER;


class SCH_REFERENCE_LIST
{

private:
    std::vector<SCH_REFERENCE> flatList;

public:
    SCH_REFERENCE_LIST()
    {
    }

    SCH_REFERENCE& operator[]( int aIndex )
    {
        return flatList[ aIndex ];
    }

    const SCH_REFERENCE& operator[]( int aIndex ) const
    {
        return flatList[ aIndex ];
    }

    void Clear()
    {
        flatList.clear();
    }

    size_t GetCount() const { return flatList.size(); }

    SCH_REFERENCE& GetItem( int aIdx ) { return flatList[aIdx]; }
    const SCH_REFERENCE& GetItem( int aIdx ) const { return flatList[aIdx]; }

    void AddItem( const SCH_REFERENCE& aItem ) { flatList.push_back( aItem ); }

    void RemoveItem( unsigned int aIndex );

    bool Contains( const SCH_REFERENCE& aItem );

    /* Sort functions:
     * Sort functions are used to sort symbols for annotation or BOM generation.  Because
     * sorting depends on what we want to do, there are many sort functions.
     * Note:
     *    When creating BOM, symbols are fully annotated.  References are something like U3,
     *    U5 or R4, R8.  When annotating,  some or all symbols are not annotated, i.e. ref is
     *    only U or R, with no number.
     */

    void SplitReferences()
    {
        for( unsigned ii = 0; ii < GetCount(); ii++ )
            flatList[ii].Split();
    }

    void UpdateAnnotation()
    {
        /* update the reference numbers */
        for( unsigned ii = 0; ii < GetCount(); ii++ )
            flatList[ii].Annotate();
    }

    void ReannotateDuplicates( const SCH_REFERENCE_LIST& aAdditionalReferences );

    void Annotate( bool aUseSheetNum, int aSheetIntervalId, int aStartNumber,
                   SCH_MULTI_UNIT_REFERENCE_MAP aLockedUnitMap,
                   const SCH_REFERENCE_LIST& aAdditionalRefs, bool aStartAtCurrent = false );

    int CheckAnnotation( ANNOTATION_ERROR_HANDLER aErrorHandler );

    void SortByXCoordinate()
    {
        sort( flatList.begin(), flatList.end(), sortByXPosition );
    }

    void SortByYCoordinate()
    {
        sort( flatList.begin(), flatList.end(), sortByYPosition );
    }

    void SortByTimeStamp()
    {
        sort( flatList.begin(), flatList.end(), sortByTimeStamp );
    }

    void SortByRefAndValue()
    {
        sort( flatList.begin(), flatList.end(), sortByRefAndValue );
    }

    void SortByReferenceOnly()
    {
        sort( flatList.begin(), flatList.end(), sortByReferenceOnly );
    }

    int FindRef( const wxString& aPath ) const;

    int FindUnit( size_t aIndex, int aUnit ) const;

    int FindRefByPath( const wxString& aPath ) const;

    void GetRefsInUse( int aIndex, std::vector< int >& aIdList, int aMinRefId ) const;

    int GetLastReference( int aIndex, int aMinValue ) const;

    std::vector<SYMBOL_INSTANCE_REFERENCE> GetSymbolInstances() const;

#if defined(DEBUG)
    void Show( const char* aPrefix = "" )
    {
        printf( "%s\n", aPrefix );

        for( unsigned i=0; i < flatList.size(); ++i )
        {
            SCH_REFERENCE& schref = flatList[i];

            printf( " [%-2d] ref:%-8s num:%-3d lib_part:%s\n",
                    i,
                    schref.m_ref.c_str(),
                    schref.m_numRef,
                    TO_UTF8( schref.GetLibPart()->GetName() ) );
        }
    }
#endif

    static wxString Shorthand( std::vector<SCH_REFERENCE> aList );

    friend class BACK_ANNOTATION;

private:
    static bool sortByRefAndValue( const SCH_REFERENCE& item1, const SCH_REFERENCE& item2 );

    static bool sortByXPosition( const SCH_REFERENCE& item1, const SCH_REFERENCE& item2 );

    static bool sortByYPosition( const SCH_REFERENCE& item1, const SCH_REFERENCE& item2 );

    static bool sortByTimeStamp( const SCH_REFERENCE& item1, const SCH_REFERENCE& item2 );

    static bool sortByReferenceOnly( const SCH_REFERENCE& item1, const SCH_REFERENCE& item2 );

    int CreateFirstFreeRefId( std::vector<int>& aIdList, int aFirstValue );

    // Used for sorting static sortByTimeStamp function
    friend class BACK_ANNOTATE;
};

#endif    // _SCH_REFERENCE_LIST_H_