/****************************************************************************
** Copyright (C) 2001-2013 RibbonSoft, GmbH. All rights reserved.
**
** This file is part of the dxflib project.
**
** This file 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.
**
** Licensees holding valid dxflib Professional Edition licenses may use
** this file in accordance with the dxflib Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.ribbonsoft.com for further details.
**
** Contact info@ribbonsoft.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#ifndef DL_DXF_H
#define DL_DXF_H

#include "dl_global.h"

#include <limits>
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <sstream>
#include <map>

#include "dl_attributes.h"
#include "dl_codes.h"
#include "dl_entities.h"
#include "dl_writer_ascii.h"

#ifdef _WIN32
#undef M_PI
#define M_PI 3.14159265358979323846
#endif

#ifndef M_PI
#define M_PI 3.1415926535897932384626433832795
#endif

#ifndef DL_NANDOUBLE
#define DL_NANDOUBLE std::numeric_limits<double>::quiet_NaN()
#endif

class DL_CreationInterface;
class DL_WriterA;


#define DL_VERSION                  "3.26.4.0"

#define DL_VERSION_MAJOR            3
#define DL_VERSION_MINOR            26
#define DL_VERSION_REV              4
#define DL_VERSION_BUILD            0

#define DL_UNKNOWN                  0
#define DL_LAYER                    10
#define DL_BLOCK                    11
#define DL_ENDBLK                   12
#define DL_LINETYPE                 13
#define DL_STYLE                    20
#define DL_SETTING                  50
#define DL_ENTITY_POINT             100
#define DL_ENTITY_LINE              101
#define DL_ENTITY_POLYLINE          102
#define DL_ENTITY_LWPOLYLINE        103
#define DL_ENTITY_VERTEX            104
#define DL_ENTITY_SPLINE            105
#define DL_ENTITY_KNOT              106
#define DL_ENTITY_CONTROLPOINT      107
#define DL_ENTITY_ARC               108
#define DL_ENTITY_CIRCLE            109
#define DL_ENTITY_ELLIPSE           110
#define DL_ENTITY_INSERT            111
#define DL_ENTITY_TEXT              112
#define DL_ENTITY_MTEXT             113
#define DL_ENTITY_DIMENSION         114
#define DL_ENTITY_LEADER            115
#define DL_ENTITY_HATCH             116
#define DL_ENTITY_ATTRIB            117
#define DL_ENTITY_IMAGE             118
#define DL_ENTITY_IMAGEDEF          119
#define DL_ENTITY_TRACE             120
#define DL_ENTITY_SOLID             121
#define DL_ENTITY_3DFACE            122
#define DL_ENTITY_XLINE             123
#define DL_ENTITY_RAY               124
#define DL_ENTITY_ARCALIGNEDTEXT    125
#define DL_ENTITY_SEQEND            126
#define DL_XRECORD                  200
#define DL_DICTIONARY               210


/**
 * Reading and writing of DXF files.
 *
 * This class can read in a DXF file and calls methods from the
 * interface DL_EntityContainer to add the entities to the
 * contianer provided by the user of the library.
 *
 * It can also be used to write DXF files to a certain extent.
 *
 * When saving entities, special values for colors and linetypes
 * can be used:
 *
 * Special colors are 0 (=BYBLOCK) and 256 (=BYLAYER).
 * Special linetypes are "BYLAYER" and "BYBLOCK".
 *
 * @author Andrew Mustun
 */
class DXFLIB_EXPORT DL_Dxf
{
public:
    DL_Dxf();
    ~DL_Dxf();

    bool in( FILE* fp, DL_CreationInterface* creationInterface );
    bool in( const std::string& file, DL_CreationInterface* creationInterface );
    bool readDxfGroups( FILE* fp, DL_CreationInterface* creationInterface );
    static bool getStrippedLine( std::string& s, unsigned int size,
            FILE* stream, bool stripSpace = true );

    bool readDxfGroups( std::istream& stream,
            DL_CreationInterface* creationInterface );
    bool in( std::istream& stream,
            DL_CreationInterface* creationInterface );
    static bool getStrippedLine( std::string& s, unsigned int size,
            std::istream& stream, bool stripSpace = true );

    static bool stripWhiteSpace( char** s, bool stripSpaces = true );

    bool processDXFGroup( DL_CreationInterface* creationInterface,
            int groupCode, const std::string& groupValue );
    void    addSetting( DL_CreationInterface* creationInterface );
    void    addLayer( DL_CreationInterface* creationInterface );
    void    addLinetype( DL_CreationInterface* creationInterface );
    void    addBlock( DL_CreationInterface* creationInterface );
    void    endBlock( DL_CreationInterface* creationInterface );
    void    addTextStyle( DL_CreationInterface* creationInterface );

    void    addPoint( DL_CreationInterface* creationInterface );
    void    addLine( DL_CreationInterface* creationInterface );
    void    addXLine( DL_CreationInterface* creationInterface );
    void    addRay( DL_CreationInterface* creationInterface );

    void    addPolyline( DL_CreationInterface* creationInterface );
    void    addVertex( DL_CreationInterface* creationInterface );

    void addSpline( DL_CreationInterface* creationInterface );

    void    addArc( DL_CreationInterface* creationInterface );
    void    addCircle( DL_CreationInterface* creationInterface );
    void    addEllipse( DL_CreationInterface* creationInterface );
    void    addInsert( DL_CreationInterface* creationInterface );

    void    addTrace( DL_CreationInterface* creationInterface );
    void    add3dFace( DL_CreationInterface* creationInterface );
    void    addSolid( DL_CreationInterface* creationInterface );

    void    addMText( DL_CreationInterface* creationInterface );
    void    addText( DL_CreationInterface* creationInterface );
    void    addArcAlignedText( DL_CreationInterface* creationInterface );

    void addAttribute( DL_CreationInterface* creationInterface );

    DL_DimensionData    getDimData();
    void                addDimLinear( DL_CreationInterface* creationInterface );
    void                addDimAligned( DL_CreationInterface* creationInterface );
    void                addDimRadial( DL_CreationInterface* creationInterface );
    void                addDimDiametric( DL_CreationInterface* creationInterface );
    void                addDimAngular( DL_CreationInterface* creationInterface );
    void                addDimAngular3P( DL_CreationInterface* creationInterface );
    void                addDimOrdinate( DL_CreationInterface* creationInterface );

    void addLeader( DL_CreationInterface* creationInterface );

    void    addHatch( DL_CreationInterface* creationInterface );
    void    addHatchLoop();
    void    addHatchEdge();
    bool    handleHatchData( DL_CreationInterface* creationInterface );

    void    addImage( DL_CreationInterface* creationInterface );
    void    addImageDef( DL_CreationInterface* creationInterface );

    void addComment( DL_CreationInterface* creationInterface, const std::string& comment );

    void    addDictionary( DL_CreationInterface* creationInterface );
    void    addDictionaryEntry( DL_CreationInterface* creationInterface );

    bool    handleXRecordData( DL_CreationInterface* creationInterface );
    bool    handleDictionaryData( DL_CreationInterface* creationInterface );

    bool    handleXData( DL_CreationInterface* creationInterface );
    bool    handleMTextData( DL_CreationInterface* creationInterface );
    bool    handleLWPolylineData( DL_CreationInterface* creationInterface );
    bool    handleSplineData( DL_CreationInterface* creationInterface );
    bool    handleLeaderData( DL_CreationInterface* creationInterface );
    bool    handleLinetypeData( DL_CreationInterface* creationInterface );

    void endEntity( DL_CreationInterface* creationInterface );

    void endSequence( DL_CreationInterface* creationInterface );

    // int  stringToInt(const char* s, bool* ok=NULL);

    DL_WriterA* out( const char* file,
            DL_Codes::version version = DL_VERSION_2000 );

    void writeHeader( DL_WriterA& dw );

    void writePoint( DL_WriterA& dw,
            const DL_PointData& data,
            const DL_Attributes& attrib );
    void writeLine( DL_WriterA& dw,
            const DL_LineData& data,
            const DL_Attributes& attrib );
    void writeXLine( DL_WriterA& dw,
            const DL_XLineData& data,
            const DL_Attributes& attrib );
    void writeRay( DL_WriterA& dw,
            const DL_RayData& data,
            const DL_Attributes& attrib );
    void writePolyline( DL_WriterA& dw,
            const DL_PolylineData& data,
            const DL_Attributes& attrib );
    void writeVertex( DL_WriterA& dw,
            const DL_VertexData& data );
    void    writePolylineEnd( DL_WriterA& dw );
    void    writeSpline( DL_WriterA& dw,
            const DL_SplineData& data,
            const DL_Attributes& attrib );
    void writeControlPoint( DL_WriterA& dw,
            const DL_ControlPointData& data );
    void writeFitPoint( DL_WriterA& dw,
            const DL_FitPointData& data );
    void writeKnot( DL_WriterA& dw,
            const DL_KnotData& data );
    void writeCircle( DL_WriterA& dw,
            const DL_CircleData& data,
            const DL_Attributes& attrib );
    void writeArc( DL_WriterA& dw,
            const DL_ArcData& data,
            const DL_Attributes& attrib );
    void writeEllipse( DL_WriterA& dw,
            const DL_EllipseData& data,
            const DL_Attributes& attrib );
    void writeSolid( DL_WriterA& dw,
            const DL_SolidData& data,
            const DL_Attributes& attrib );
    void writeTrace( DL_WriterA& dw,
            const DL_TraceData& data,
            const DL_Attributes& attrib );
    void write3dFace( DL_WriterA& dw,
            const DL_3dFaceData& data,
            const DL_Attributes& attrib );
    void writeInsert( DL_WriterA& dw,
            const DL_InsertData& data,
            const DL_Attributes& attrib );
    void writeMText( DL_WriterA& dw,
            const DL_MTextData& data,
            const DL_Attributes& attrib );
    void writeText( DL_WriterA& dw,
            const DL_TextData& data,
            const DL_Attributes& attrib );
    void writeAttribute( DL_WriterA& dw,
            const DL_AttributeData& data,
            const DL_Attributes& attrib );
    void writeDimStyleOverrides( DL_WriterA& dw,
            const DL_DimensionData& data );
    void writeDimAligned( DL_WriterA& dw,
            const DL_DimensionData& data,
            const DL_DimAlignedData& edata,
            const DL_Attributes& attrib );
    void writeDimLinear( DL_WriterA& dw,
            const DL_DimensionData& data,
            const DL_DimLinearData& edata,
            const DL_Attributes& attrib );
    void writeDimRadial( DL_WriterA& dw,
            const DL_DimensionData& data,
            const DL_DimRadialData& edata,
            const DL_Attributes& attrib );
    void writeDimDiametric( DL_WriterA& dw,
            const DL_DimensionData& data,
            const DL_DimDiametricData& edata,
            const DL_Attributes& attrib );
    void writeDimAngular2L( DL_WriterA& dw,
            const DL_DimensionData& data,
            const DL_DimAngular2LData& edata,
            const DL_Attributes& attrib );
    void writeDimAngular3P( DL_WriterA& dw,
            const DL_DimensionData& data,
            const DL_DimAngular3PData& edata,
            const DL_Attributes& attrib );
    void writeDimOrdinate( DL_WriterA& dw,
            const DL_DimensionData& data,
            const DL_DimOrdinateData& edata,
            const DL_Attributes& attrib );
    void writeLeader( DL_WriterA& dw,
            const DL_LeaderData& data,
            const DL_Attributes& attrib );
    void writeLeaderVertex( DL_WriterA& dw,
            const DL_LeaderVertexData& data );
    void writeLeaderEnd( DL_WriterA& dw,
            const DL_LeaderData& data );
    void writeHatch1( DL_WriterA& dw,
            const DL_HatchData& data,
            const DL_Attributes& attrib );
    void writeHatch2( DL_WriterA& dw,
            const DL_HatchData& data,
            const DL_Attributes& attrib );
    void writeHatchLoop1( DL_WriterA& dw,
            const DL_HatchLoopData& data );
    void writeHatchLoop2( DL_WriterA& dw,
            const DL_HatchLoopData& data );
    void writeHatchEdge( DL_WriterA& dw,
            const DL_HatchEdgeData& data );

    unsigned int writeImage( DL_WriterA& dw,
            const DL_ImageData& data,
            const DL_Attributes& attrib );

    void writeImageDef( DL_WriterA& dw, int handle,
            const DL_ImageData& data );

    void writeLayer( DL_WriterA& dw,
            const DL_LayerData& data,
            const DL_Attributes& attrib );

    void writeLinetype( DL_WriterA& dw,
            const DL_LinetypeData& data );

    void writeAppid( DL_WriterA& dw, const std::string& name );

    void writeBlock( DL_WriterA& dw,
            const DL_BlockData& data );
    void writeEndBlock( DL_WriterA& dw, const std::string& name );

    void    writeVPort( DL_WriterA& dw );
    void    writeStyle( DL_WriterA& dw, const DL_StyleData& style );
    void    writeView( DL_WriterA& dw );
    void    writeUcs( DL_WriterA& dw );
    void    writeDimStyle( DL_WriterA& dw,
            double dimasz, double dimexe, double dimexo,
            double dimgap, double dimtxt,
            int dimtad = 1, bool dimtih = false );
    void    writeBlockRecord( DL_WriterA& dw );
    void    writeBlockRecord( DL_WriterA& dw, const std::string& name );
    void    writeObjects( DL_WriterA& dw, const std::string& appDictionaryName = "" );
    void    writeAppDictionary( DL_WriterA& dw );
    unsigned int writeDictionaryEntry( DL_WriterA& dw, const std::string& name );
    void    writeXRecord( DL_WriterA& dw, int handle, int value );
    void    writeXRecord( DL_WriterA& dw, int handle, double value );
    void    writeXRecord( DL_WriterA& dw, int handle, bool value );
    void    writeXRecord( DL_WriterA& dw, int handle, const std::string& value );
    void    writeObjectsEnd( DL_WriterA& dw );

    void writeComment( DL_WriterA& dw, const std::string& comment );

    /**
     * Converts the given string into a double or returns the given
     * default valud (def) if value is NULL or empty.
     */
    // static double toReal(const char* value, double def=0.0);

    /**
     * Converts the given string into an int or returns the given
     * default valud (def) if value is NULL or empty.
     */
// static int toInt(const char* value, int def=0) {
// if (value!=NULL && value[0] != '\0') {
// return atoi(value);
// }

// return def;
// }

    /**
     * Converts the given string into a string or returns the given
     * default valud (def) if value is NULL or empty.
     */
// static const char* toString(const char* value, const char* def="") {
// if (value!=NULL && value[0] != '\0') {
// return value;
// } else {
// return def;
// }
// }

    static bool checkVariable( const char* var, DL_Codes::version version );

    DL_Codes::version getVersion()
    {
        return version;
    }

    int getLibVersion( const std::string& str );

    static void test();

    bool hasValue( int code )
    {
        return values.count( code )==1;
    }

    int getIntValue( int code, int def )
    {
        if( !hasValue( code ) )
        {
            return def;
        }

        return toInt( values[code] );
    }

    int toInt( const std::string& str )
    {
        char* p;

        return strtol( str.c_str(), &p, 10 );
    }

    int getInt16Value( int code, int def )
    {
        if( !hasValue( code ) )
        {
            return def;
        }

        return toInt16( values[code] );
    }

    int toInt16( const std::string& str )
    {
        char* p;

        return strtol( str.c_str(), &p, 16 );
    }

    bool toBool( const std::string& str )
    {
        char* p;

        return (bool) strtol( str.c_str(), &p, 10 );
    }

    std::string getStringValue( int code, const std::string& def )
    {
        if( !hasValue( code ) )
        {
            return def;
        }

        return values[code];
    }

    double getRealValue( int code, double def )
    {
        if( !hasValue( code ) )
        {
            return def;
        }

        return toReal( values[code] );
    }

    double toReal( const std::string& str )
    {
        double ret;
        // make sure the real value uses '.' not ',':
        std::string str2 = str;
        std::replace( str2.begin(), str2.end(), ',', '.' );
        // make sure c++ expects '.' not ',':
        std::istringstream istr( str2 );

        // istr.imbue(std::locale("C"));
        istr >> ret;
        return ret;
    }

private:
    DL_Codes::version version;

    std::string polylineLayer;
    double* vertices;
    int maxVertices;
    int vertexIndex;

    double* knots;
    int maxKnots;
    int knotIndex;

    double* weights;
    int weightIndex;

    double* controlPoints;
    int maxControlPoints;
    int controlPointIndex;

    double* fitPoints;
    int maxFitPoints;
    int fitPointIndex;

    double* leaderVertices;
    int maxLeaderVertices;
    int leaderVertexIndex;

    bool firstHatchLoop;
    DL_HatchEdgeData hatchEdge;
    std::vector<std::vector<DL_HatchEdgeData> > hatchEdges;

    std::string xRecordHandle;
    bool xRecordValues;

    // Only the useful part of the group code
    std::string groupCodeTmp;
    // ...same as integer
    unsigned int groupCode;
    // Only the useful part of the group value
    std::string groupValue;
    // Current entity type
    int currentObjectType;
    // Value of the current setting
    char settingValue[DL_DXF_MAXLINE + 1];
    // Key of the current setting (e.g. "$ACADVER")
    std::string settingKey;
    // Stores the group codes
    std::map<int, std::string> values;
    // First call of this method. We initialize all group values in
    // the first call.
    bool firstCall;
    // Attributes of the current entity (layer, color, width, line type)
    DL_Attributes attrib;
    // library version. hex: 0x20003001 = 2.0.3.1
    int libVersion;
    // app specific dictionary handle:
    unsigned long appDictionaryHandle;
    // handle of standard text style, referenced by dimstyle:
    unsigned long styleHandleStd;
};

#endif

// EOF