sch_io_eagle.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2017 CERN
 * Copyright The KiCad Developers, see AUTHORS.txt for contributors.
 *
 * @author Alejandro García Montoro <[email protected]>
 * @author Maciej Suminski <[email protected]>
 * @author Russell Oliver <[email protected]>
 *
 * 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 <http://www.gnu.org/licenses/>.
 */
 
#ifndef SCH_IO_EAGLE_H_
#define SCH_IO_EAGLE_H_
 
#include <sch_line.h>
#include <sch_io/sch_io.h>
#include <sch_io/sch_io_mgr.h>
#include <io/eagle/eagle_parser.h>
#include <geometry/seg.h>
 
 
class EDA_TEXT;
class KIWAY;
class LINE_READER;
class SCH_SCREEN;
class SCH_SHEET;
class SCH_BITMAP;
class SCH_JUNCTION;
class SCH_NO_CONNECT;
class SCH_SHAPE;
class SCH_LABEL_BASE;
class SCH_LINE;
class SCH_BUS_ENTRY_BASE;
class SCH_TEXT;
class SCH_GLOBALLABEL;
class SCH_SYMBOL;
class SCH_FIELD;
class LIB_SYMBOL;
class LEGACY_SYMBOL_LIB;
class SCH_PIN;
class wxXmlNode;
 
 
struct EAGLE_LIBRARY
{
    wxString name;
    std::map<wxString, std::unique_ptr<LIB_SYMBOL>> KiCadSymbols;

    std::unordered_map<wxString, int> GateToUnitMap;
    std::unordered_map<wxString, wxString> package;
};
 

class SCH_IO_EAGLE : public SCH_IO
{
public:
    const int ARC_ACCURACY = KiROUND( SCH_IU_PER_MM * 0.01 ); // 0.01mm
 
    SCH_IO_EAGLE();
    ~SCH_IO_EAGLE();
 
    const IO_BASE::IO_FILE_DESC GetSchematicFileDesc() const override
    {
        return IO_BASE::IO_FILE_DESC( _HKI( "Eagle XML schematic files" ), { "sch" } );
    }
 
    const IO_BASE::IO_FILE_DESC GetLibraryDesc() const override
    {
        return IO_BASE::IO_FILE_DESC( _HKI( "Eagle XML library files" ), { "lbr" } );
    }
 
    bool CanReadSchematicFile( const wxString& aFileName ) const override;
    bool CanReadLibrary( const wxString& aFileName ) const override;
 
    int GetModifyHash() const override;
 
    SCH_SHEET* LoadSchematicFile( const wxString& aFileName, SCHEMATIC* aSchematic,
                                  SCH_SHEET*             aAppendToMe = nullptr,
                                  const std::map<std::string, UTF8>* aProperties = nullptr ) override;
 
    void EnumerateSymbolLib( wxArrayString& aSymbolNameList, const wxString& aLibraryPath,
                             const std::map<std::string, UTF8>* aProperties ) override;
 
    void EnumerateSymbolLib( std::vector<LIB_SYMBOL*>& aSymbolList, const wxString& aLibraryPath,
                             const std::map<std::string, UTF8>* aProperties ) override;
 
    LIB_SYMBOL* LoadSymbol( const wxString& aLibraryPath, const wxString& aAliasName,
                            const std::map<std::string, UTF8>* aProperties ) override;
 
    bool IsLibraryWritable( const wxString& aLibraryPath ) override { return false; }
 
private:
    bool          checkHeader( const wxString& aFileName ) const;
    wxXmlDocument loadXmlDocument( const wxString& aFileName );
    long long     getLibraryTimestamp( const wxString& aLibraryPath ) const;
    void          ensureLoadedLibrary( const wxString& aLibraryPath );
 
    void loadDrawing( const std::unique_ptr<EDRAWING>& aDrawing );
    void loadLayerDefs( const std::vector<std::unique_ptr<ELAYER>>& aLayers );
    void loadSchematic( const ESCHEMATIC& aSchematic );
    void loadSheet( const std::unique_ptr<ESHEET>& aSheet );
    void loadInstance( const std::unique_ptr<EINSTANCE>& aInstance,
                       const std::map<wxString, std::unique_ptr<EPART>>& aParts );
 
    void loadModuleInstance( const std::unique_ptr<EMODULEINST>& aModuleInstance );
 
    EAGLE_LIBRARY* loadLibrary( const ELIBRARY* aLibrary, EAGLE_LIBRARY* aEagleLib );
    void countNets( const ESCHEMATIC& aSchematic );

    void moveLabels( SCH_LINE* aWire, const VECTOR2I& aNewEndPoint );

    void addBusEntries();

    SCH_LAYER_ID kiCadLayer( int aEagleLayer );
 
    std::pair<VECTOR2I, const SEG*> findNearestLinePoint( const VECTOR2I&         aPoint,
                                                          const std::vector<SEG>& aLines ) const;
 
    void          loadSegments( const std::vector<std::unique_ptr<ESEGMENT>>& aSegments,
                                const wxString& aNetName,
                                const wxString& aNetClass );
    SCH_SHAPE*    loadPolyLine( const std::unique_ptr<EPOLYGON>& aPolygon );
    SCH_ITEM*     loadWire( const std::unique_ptr<EWIRE>& aWire, SEG& endpoints );
    SCH_SHAPE*    loadCircle( const std::unique_ptr<ECIRCLE>& aCircle );
    SCH_SHAPE*    loadRectangle( const std::unique_ptr<ERECT>& aRect );
    SCH_LABEL_BASE* loadLabel( const std::unique_ptr<ELABEL>& aLabel, const wxString& aNetName );
    SCH_JUNCTION* loadJunction( const std::unique_ptr<EJUNCTION>&  aJunction );
    SCH_TEXT*     loadPlainText( const std::unique_ptr<ETEXT>& aSchText );
    void          loadFrame( const std::unique_ptr<EFRAME>& aFrame,
                             std::vector<SCH_ITEM*>& aItems );
 
    bool          loadSymbol( const std::unique_ptr<ESYMBOL>& aEsymbol,
                              std::unique_ptr<LIB_SYMBOL>& aSymbol,
                              const std::unique_ptr<EDEVICE>& aDevice, int aGateNumber,
                              const wxString& aGateName );
    SCH_SHAPE*    loadSymbolCircle( std::unique_ptr<LIB_SYMBOL>& aSymbol,
                                    const std::unique_ptr<ECIRCLE>& aCircle,
                                    int aGateNumber );
    SCH_SHAPE*    loadSymbolRectangle( std::unique_ptr<LIB_SYMBOL>& aSymbol,
                                       const std::unique_ptr<ERECT>& aRectangle,
                                       int aGateNumber );
    SCH_SHAPE*    loadSymbolPolyLine( std::unique_ptr<LIB_SYMBOL>& aSymbol,
                                      const std::unique_ptr<EPOLYGON>& aPolygon, int aGateNumber );
    SCH_ITEM*     loadSymbolWire( std::unique_ptr<LIB_SYMBOL>& aSymbol,
                                  const std::unique_ptr<EWIRE>& aWire,
                                  int aGateNumber );
    SCH_PIN*      loadPin( std::unique_ptr<LIB_SYMBOL>& aSymbol, const std::unique_ptr<EPIN>& aPin,
                           int aGateNumber );
    SCH_TEXT*     loadSymbolText( std::unique_ptr<LIB_SYMBOL>& aSymbol,
                                  const std::unique_ptr<ETEXT>& aText,
                                  int aGateNumber );
    void          loadTextAttributes( EDA_TEXT* aText,
                                      const std::unique_ptr<ETEXT>& aAttributes ) const;
    void          loadFieldAttributes( SCH_FIELD* aField, const SCH_TEXT* aText ) const;

    void adjustNetLabels();

    wxString translateEagleBusName( const wxString& aEagleName ) const;
 
    wxString        getLibName();
    wxFileName      getLibFileName();

    bool checkConnections( const SCH_SYMBOL* aSymbol, const SCH_PIN* aPin ) const;

    void addImplicitConnections( SCH_SYMBOL* aSymbol, SCH_SCREEN* aScreen, bool aUpdateSet );
 
    bool netHasPowerDriver( SCH_LINE* aLine, const wxString& aNetName ) const;
 
    void getEagleSymbolFieldAttributes( const std::unique_ptr<EINSTANCE>& aInstance,
                                        const wxString& aEagleFieldName,
                                        SCH_FIELD* aField );
    const ESYMBOL* getEagleSymbol( const std::unique_ptr<EINSTANCE>& aInstance );
 
    SCH_SHEET* getCurrentSheet();
    SCH_SCREEN* getCurrentScreen();
 
    // Describe missing units containing pins creating implicit connections
    // (named power pins in Eagle).
    struct EAGLE_MISSING_CMP
    {
        EAGLE_MISSING_CMP( const SCH_SYMBOL* aSymbol = nullptr, SCH_SCREEN* aScreen = nullptr )
            : cmp( aSymbol ), screen( aScreen )
        {
        }

        const SCH_SYMBOL* cmp;

        SCH_SCREEN* screen;
 
        /* Map of the symbol units: for each unit there is a flag saying
         * whether the unit needs to be instantiated with appropriate net labels to
         * emulate implicit connections as is done in Eagle.
         */
        std::map<int, bool> units;
    };

    std::map<wxString, EAGLE_MISSING_CMP> m_missingCmps;
 
    SCH_SHEET*  m_rootSheet;      
    SCH_SHEET_PATH  m_sheetPath;  
    wxString    m_version;        
    wxFileName  m_filename;
    wxString    m_libName;        
    SCHEMATIC*  m_schematic;      
    std::vector<EMODULE*> m_modules; 
    std::vector<EMODULEINST*> m_moduleInstances;
 
    std::map<wxString, const EPART*>   m_partlist;
    std::map<wxString, long long>      m_timestamps;
    std::map<wxString, EAGLE_LIBRARY>  m_eagleLibs;
    std::map<wxString, std::unique_ptr<EMODULE>> m_eagleModules;
 
    std::unordered_map<wxString, bool> m_userValue; 
 
    IO_RELEASER<SCH_IO>                m_pi;                
 
    int                                m_sheetIndex;
    std::map<wxString, int>            m_netCounts;
    std::map<int, SCH_LAYER_ID>        m_layerMap;
    std::map<wxString, wxString>       m_powerPorts;        

    std::vector<VECTOR2I> m_wireIntersections;

    struct SEG_DESC
    {
        const SEG* LabelAttached( const SCH_LABEL_BASE* aLabel ) const;
 
        std::vector<SCH_LABEL_BASE*> labels;
        std::vector<SEG> segs;
    };

    std::vector<SEG_DESC> m_segments;

    std::map<wxString, ENET> m_nets;

    std::map<VECTOR2I, std::set<const EDA_ITEM*>> m_connPoints;

    std::unique_ptr<EAGLE_DOC> m_eagleDoc;
};
 
#endif  // SCH_IO_EAGLE_H_