dxfreprd.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#pragma once
 
#include "dxfblkrd.hxx"
#include "dxftblrd.hxx"
#include <array>
#include <string_view>
 
//--------------------Other stuff---------------------------------------------
 
 
//-------------------A 3D-Min/Max-Box-----------------------------------------
 
class DXFBoundingBox {
public:
    bool bEmpty;
    double fMinX;
    double fMinY;
    double fMinZ;
    double fMaxX;
    double fMaxY;
    double fMaxZ;
 
    DXFBoundingBox():bEmpty(true), fMinX(0.0), fMinY(0.0), fMinZ(0.0), fMaxX(0.0), fMaxY(0.0), fMaxZ(0.0) {}
    void Union(const DXFVector & rVector);
};
 
 
//-------------------The (constant) palette for DXF-------------------------
 
class DXFPalette {
 
public:
 
    DXFPalette();
 
    sal_uInt8 GetRed(sal_uInt8 nIndex) const;
    sal_uInt8 GetGreen(sal_uInt8 nIndex) const;
    sal_uInt8 GetBlue(sal_uInt8 nIndex) const;
 
private:
    std::array<sal_uInt8, 256> pRed;
    std::array<sal_uInt8, 256> pGreen;
    std::array<sal_uInt8, 256> pBlue;
    void SetColor(sal_uInt8 nIndex, sal_uInt8 nRed, sal_uInt8 nGreen, sal_uInt8 nBlue);
};
 
 
//-----------------read and represent DXF file--------------------------------
 
 
class DXFRepresentation {
 
public:
 
    DXFPalette aPalette;
        // The always equal DXF color palette
 
    DXFBoundingBox aBoundingBox;
        // is equal to the AutoCAD variables EXTMIN, EXTMAX if those exist
        // within the DXF file. Otherwise the BoundingBox gets calculated (in Read())
 
    DXFTables aTables;
        // the tables of the DXF file
 
    DXFBlocks aBlocks;
        // the blocks of the DXF file
 
    DXFEntities aEntities;
        // the entities (from the Entities-Section) of the DXF file
 
    rtl_TextEncoding mEnc;  // $DWGCODEPAGE
 
    double mfGlobalLineTypeScale; // $LTSCALE
 
    bool mbInCalc;  // guard for self-recursive bounding box calc
 
    DXFRepresentation();
    ~DXFRepresentation();
 
    rtl_TextEncoding getTextEncoding() const;
    void setTextEncoding(rtl_TextEncoding aEnc) { mEnc = aEnc; }
    OUString ToOUString(std::string_view s) const;
 
    double getGlobalLineTypeScale() const { return mfGlobalLineTypeScale; }
    void setGlobalLineTypeScale(double fGlobalLineTypeScale) { mfGlobalLineTypeScale = fGlobalLineTypeScale; }
 
    bool Read( SvStream & rIStream );
        // Reads complete DXF file.
 
private:
    void ReadHeader(DXFGroupReader & rDGR);
    void CalcBoundingBox(const DXFEntities & rEntities,
                         DXFBoundingBox & rBox);
 
    bool isTextEncodingSet() const { return mEnc != RTL_TEXTENCODING_DONTKNOW; }
};
 
 
//-------------------inlines--------------------------------------------------
 
 
inline sal_uInt8 DXFPalette::GetRed(sal_uInt8 nIndex) const { return pRed[nIndex]; }
inline sal_uInt8 DXFPalette::GetGreen(sal_uInt8 nIndex) const { return pGreen[nIndex]; }
inline sal_uInt8 DXFPalette::GetBlue(sal_uInt8 nIndex) const { return pBlue[nIndex]; }
 
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