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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef INCLUDED_EMFIO_INC_MTFTOOLS_HXX
#define INCLUDED_EMFIO_INC_MTFTOOLS_HXX

#include <basegfx/utils/b2dclipstate.hxx>
#include <tools/poly.hxx>
#include <vcl/font.hxx>
#include <vcl/bitmapex.hxx>
#include <vcl/lineinfo.hxx>
#include <vcl/outdevstate.hxx>
#include <vcl/FilterConfigItem.hxx>
#include <rtl/ref.hxx>

#include "emfiodllapi.h"

#define ERROR                   0
#define NULLREGION              1
#define COMPLEXREGION           3

#define RGN_AND                 1
#define RGN_OR                  2
#define RGN_XOR                 3
#define RGN_DIFF                4
#define RGN_COPY                5

namespace emfio
{
    enum class BkMode
    {
        NONE = 0,
        Transparent = 1,
        OPAQUE = 2,
    };
}

/* xform stuff */
#define MWT_IDENTITY            1
#define MWT_LEFTMULTIPLY        2
#define MWT_RIGHTMULTIPLY       3
#define MWT_SET                 4

#define ENHMETA_STOCK_OBJECT    0x80000000

/* Stock Logical Objects */
#define WHITE_BRUSH             0
#define LTGRAY_BRUSH            1
#define GRAY_BRUSH              2
#define DKGRAY_BRUSH            3
#define BLACK_BRUSH             4
#define NULL_BRUSH              5
#define WHITE_PEN               6
#define BLACK_PEN               7
#define NULL_PEN                8
#define ANSI_FIXED_FONT         11
#define ANSI_VAR_FONT           12
#define SYSTEM_FIXED_FONT       16

namespace emfio
{
    enum class WMFRasterOp {
        NONE = 0,
        Black = 1,
        Not = 6,
        XorPen = 7,
        Nop = 11,
        CopyPen = 13
    };
}

/* Mapping modes */
#define MM_TEXT                 1
#define MM_LOMETRIC             2
#define MM_HIMETRIC             3
#define MM_LOENGLISH            4
#define MM_HIENGLISH            5
#define MM_TWIPS                6
#define MM_ISOTROPIC            7
#define MM_ANISOTROPIC          8

/* Graphics modes */
#define GM_COMPATIBLE           1
#define GM_ADVANCED             2

/* StretchBlt() modes */
#define BLACKONWHITE            1
#define WHITEONBLACK            2
#define COLORONCOLOR            3
#define HALFTONE                4
#define STRETCH_ANDSCANS        BLACKONWHITE
#define STRETCH_ORSCANS         WHITEONBLACK
#define STRETCH_DELETESCANS     COLORONCOLOR

#define LF_FACESIZE             32

namespace emfio
{
    struct LOGFONTW
    {
        sal_Int32       lfHeight;
        sal_Int32       lfWidth;
        sal_Int32       lfEscapement;
        sal_Int32       lfOrientation;
        sal_Int32       lfWeight;
        sal_uInt8       lfItalic;
        sal_uInt8       lfUnderline;
        sal_uInt8       lfStrikeOut;
        sal_uInt8       lfCharSet;
        sal_uInt8       lfOutPrecision;
        sal_uInt8       lfClipPrecision;
        sal_uInt8       lfQuality;
        sal_uInt8       lfPitchAndFamily;
        OUString        alfFaceName;
        LOGFONTW()
            : lfHeight(0)
            , lfWidth(0)
            , lfEscapement(0)
            , lfOrientation(0)
            , lfWeight(0)
            , lfItalic(0)
            , lfUnderline(0)
            , lfStrikeOut(0)
            , lfCharSet(0)
            , lfOutPrecision(0)
            , lfClipPrecision(0)
            , lfQuality(0)
            , lfPitchAndFamily(0)
        {
        }
    };
}

#define TA_NOUPDATECP           0x0000
#define TA_UPDATECP             0x0001
#define TA_LEFT                 0x0000
#define TA_RIGHT                0x0002
#define TA_CENTER               0x0006
#define TA_RIGHT_CENTER  (TA_RIGHT | TA_CENTER)
#define TA_TOP                  0x0000
#define TA_BOTTOM               0x0008
#define TA_BASELINE             0x0018

#define SRCCOPY                 0x00CC0020L
#define SRCPAINT                0x00EE0086L
#define SRCAND                  0x008800C6L
#define SRCINVERT               0x00660046L
#define SRCERASE                0x00440328L
#define PATCOPY                 0x00F00021L
#define PATINVERT               0x005A0049L
#define BLACKNESS               0x00000042L
#define WHITENESS               0x00FF0062L

#define PS_SOLID                0
#define PS_DASH                 1
#define PS_DOT                  2
#define PS_DASHDOT              3
#define PS_DASHDOTDOT           4
#define PS_NULL                 5
#define PS_INSIDEFRAME          6
#define PS_STYLE_MASK           15

#define PS_ENDCAP_ROUND      0x000
#define PS_ENDCAP_SQUARE     0x100
#define PS_ENDCAP_FLAT       0x200
#define PS_ENDCAP_STYLE_MASK 0xF00

#define PS_JOIN_ROUND       0x0000
#define PS_JOIN_BEVEL       0x1000
#define PS_JOIN_MITER       0x2000
#define PS_JOIN_STYLE_MASK  0xF000

#define ANSI_CHARSET            0
#define DEFAULT_CHARSET         1
#define SYMBOL_CHARSET          2
#define SHIFTJIS_CHARSET        128
#define HANGEUL_CHARSET         129
#define GB2312_CHARSET          134
#define CHINESEBIG5_CHARSET     136
#define OEM_CHARSET             255
/*WINVER >= 0x0400*/
#define JOHAB_CHARSET           130
#define HEBREW_CHARSET          177
#define ARABIC_CHARSET          178
#define GREEK_CHARSET           161
#define TURKISH_CHARSET         162
#define VIETNAMESE_CHARSET      163
#define THAI_CHARSET            222
#define EASTEUROPE_CHARSET      238
#define RUSSIAN_CHARSET         204
#define MAC_CHARSET             77
#define BALTIC_CHARSET          186

#define ETO_CLIPPED             0x0004
/*WINVER >= 0x0400*/
#define ETO_GLYPH_INDEX         0x0010
#define ETO_RTLREADING          0x0080
/*_WIN32_WINNT >= 0x0500*/
#define ETO_PDY                 0x2000

#define DEFAULT_PITCH           0x00
#define FIXED_PITCH             0x01
#define VARIABLE_PITCH          0x02

/* Font Families */
#define FF_DONTCARE             0x00
#define FF_ROMAN                0x10
#define FF_SWISS                0x20
#define FF_MODERN               0x30
#define FF_SCRIPT               0x40
#define FF_DECORATIVE           0x50

#define FW_THIN                 100
#define FW_EXTRALIGHT           200
#define FW_LIGHT                300
#define FW_NORMAL               400
#define FW_MEDIUM               500
#define FW_SEMIBOLD             600
#define FW_BOLD                 700
#define FW_EXTRABOLD            800
#define FW_ULTRALIGHT           200
#define FW_ULTRABOLD            800
#define FW_BLACK                900

#define BS_SOLID                0
#define BS_NULL                 1
#define BS_HOLLOW               1
#define BS_HATCHED              2
#define BS_PATTERN              3
#define BS_INDEXED              4
#define BS_DIBPATTERN           5
#define BS_DIBPATTERNPT         6
#define BS_PATTERN8X8           7
#define BS_DIBPATTERN8X8        8
#define BS_MONOPATTERN          9

#define RDH_RECTANGLES          1
#define W_MFCOMMENT             15
#define PRIVATE_ESCAPE_UNICODE  2

//Scalar constants
#define UNDOCUMENTED_WIN_RCL_RELATION 32
#define MS_FIXPOINT_BITCOUNT_28_4 4
#define HUNDREDTH_MILLIMETERS_PER_MILLIINCH 2.54
#define MILLIINCH_PER_TWIPS   1.44

class MetaFontAction;

//============================ WmfReader ==================================

namespace emfio
{
    class WinMtfClipPath
    {
        basegfx::utils::B2DClipState maClip;

    public:
        WinMtfClipPath() : maClip() {};

        void        setClipPath(const tools::PolyPolygon& rPolyPolygon, sal_Int32 nClippingMode);
        void        intersectClipRect(const tools::Rectangle& rRect);
        void        excludeClipRect(const tools::Rectangle& rRect);
        void        moveClipRegion(const Size& rSize);
        void        setDefaultClipPath();

        bool        isEmpty() const { return maClip.isCleared(); }

        basegfx::utils::B2DClipState const & getClip() const { return maClip; }
        basegfx::B2DPolyPolygon const & getClipPath() const;

        bool        operator==(const WinMtfClipPath& rPath) const
        {
            return maClip == rPath.maClip;
        };
    };

    class WinMtfPathObj : public tools::PolyPolygon
    {
        bool    bClosed;

    public:

        WinMtfPathObj() :
            bClosed(true)
        {}

        void        Init()
        {
            Clear();
            bClosed = true;
        }

        void        ClosePath();
        void        AddPoint(const Point& rPoint);
        void        AddPolygon(const tools::Polygon& rPoly);
        void        AddPolyLine(const tools::Polygon& rPoly);
        void        AddPolyPolygon(const tools::PolyPolygon& rPolyPolygon);
    };

    struct EMFIO_DLLPUBLIC GDIObj
    {
        virtual ~GDIObj() = default; // Polymorphic base class
    };

    struct EMFIO_DLLPUBLIC WinMtfFontStyle : GDIObj
    {
        vcl::Font    aFont;

        explicit WinMtfFontStyle(LOGFONTW const & rLogFont);
    };

    enum class WinMtfFillStyleType
    {
        Solid, Pattern
    };

    struct WinMtfFillStyle : GDIObj
    {
        Color               aFillColor;
        bool                bTransparent;
        WinMtfFillStyleType aType;
        Bitmap              aBmp;

        WinMtfFillStyle()
            : aFillColor(COL_BLACK)
            , bTransparent(false)
            , aType(WinMtfFillStyleType::Solid)
        {}

        WinMtfFillStyle(const Color& rColor, bool bTrans = false)
            : aFillColor(rColor)
            , bTransparent(bTrans)
            , aType(WinMtfFillStyleType::Solid)
        {}

        explicit WinMtfFillStyle(Bitmap const & rBmp)
            : bTransparent(false)
            , aType(WinMtfFillStyleType::Pattern)
            , aBmp(rBmp)
        {}

        bool operator==(const WinMtfFillStyle& rStyle)
        {
            return aFillColor == rStyle.aFillColor
                && bTransparent == rStyle.bTransparent
                && aType == rStyle.aType;
        }
    };

    struct WinMtfLineStyle : GDIObj
    {
        Color       aLineColor;
        LineInfo    aLineInfo;
        bool        bTransparent;

        WinMtfLineStyle()
            : aLineColor(COL_BLACK)
            , bTransparent(false)
        {}

        WinMtfLineStyle(const Color& rColor, bool bTrans = false)
            : aLineColor(rColor)
            , bTransparent(bTrans)
        {}

        WinMtfLineStyle(const Color& rColor, const LineInfo& rStyle, bool bTrans)
            : aLineColor(rColor)
            , aLineInfo(rStyle)
            , bTransparent(bTrans)
        {}

        bool operator==(const WinMtfLineStyle& rStyle)
        {
            return aLineColor == rStyle.aLineColor
                && bTransparent == rStyle.bTransparent
                && aLineInfo == rStyle.aLineInfo;
        }
    };

    struct XForm
    {
        float   eM11;
        float   eM12;
        float   eM21;
        float   eM22;
        float   eDx;
        float   eDy;

        XForm()
            : eM11(1.0f)
            , eM12(0.0f)
            , eM21(0.0f)
            , eM22(1.0f)
            , eDx(0.0f)
            , eDy(0.0f)
        {}
    };

    SvStream& operator >> (SvStream& rInStream, XForm& rXForm);

    struct SaveStruct
    {
        BkMode              nBkMode;
        sal_uInt32          nMapMode, nGfxMode;
        ComplexTextLayoutFlags nTextLayoutMode;
        sal_Int32           nWinOrgX, nWinOrgY, nWinExtX, nWinExtY;
        sal_Int32           nDevOrgX, nDevOrgY, nDevWidth, nDevHeight;

        WinMtfLineStyle     aLineStyle;
        WinMtfFillStyle     aFillStyle;

        vcl::Font           aFont;
        Color               aBkColor;
        Color               aTextColor;
        sal_uInt32          nTextAlign;
        RasterOp            eRasterOp;

        Point               aActPos;
        WinMtfPathObj       maPathObj;
        WinMtfClipPath      maClipPath;
        XForm               aXForm;

        bool                bFillStyleSelected;
    };

    struct BSaveStruct
    {
        BitmapEx            aBmpEx;
        tools::Rectangle    aOutRect;
        sal_uInt32          nWinRop;

        BSaveStruct(const Bitmap& rBmp, const tools::Rectangle& rOutRect, sal_uInt32 nRop)
            : aBmpEx(rBmp)
            , aOutRect(rOutRect)
            , nWinRop(nRop)
        {}

        BSaveStruct(const BitmapEx& rBmpEx, const tools::Rectangle& rOutRect, sal_uInt32 nRop)
            : aBmpEx(rBmpEx)
            , aOutRect(rOutRect)
            , nWinRop(nRop)
        {}
    };

    // tdf#127471 implement detection and correction of wrongly scaled
    // fonts in own-written, old (before this fix) EMF/WMF files
    class ScaledFontDetectCorrectHelper
    {
    private:
        rtl::Reference<MetaFontAction>                                  maCurrentMetaFontAction;
        std::vector<double>                                             maAlternativeFontScales;
        std::vector<std::pair<rtl::Reference<MetaFontAction>, double>>  maPositiveIdentifiedCases;
        std::vector<std::pair<rtl::Reference<MetaFontAction>, double>>  maNegativeIdentifiedCases;

    public:
        ScaledFontDetectCorrectHelper();
        void endCurrentMetaFontAction();
        void newCurrentMetaFontAction(rtl::Reference<MetaFontAction>& rNewMetaFontAction);
        void evaluateAlternativeFontScale(OUString const & rText, long nImportedTextLength);
        void applyAlternativeFontScale();
    };

    class EMFIO_DLLPUBLIC MtfTools
    {
        MtfTools(MtfTools const &) = delete;
        MtfTools& operator =(MtfTools const &) = delete;

    protected:
        WinMtfPathObj       maPathObj;
        WinMtfClipPath      maClipPath;

        WinMtfLineStyle     maLatestLineStyle;
        WinMtfLineStyle     maLineStyle;
        WinMtfLineStyle     maNopLineStyle;
        WinMtfFillStyle     maLatestFillStyle;
        WinMtfFillStyle     maFillStyle;
        WinMtfFillStyle     maNopFillStyle;

        vcl::Font           maLatestFont;
        vcl::Font           maFont;
        sal_uInt32          mnLatestTextAlign;
        sal_uInt32          mnTextAlign;
        Color               maLatestTextColor;
        Color               maTextColor;
        Color               maLatestBkColor;
        Color               maBkColor;
        ComplexTextLayoutFlags  mnLatestTextLayoutMode;
        ComplexTextLayoutFlags  mnTextLayoutMode;
        BkMode              mnLatestBkMode;
        BkMode              mnBkMode;
        RasterOp            meLatestRasterOp;
        RasterOp            meRasterOp;

        std::vector< std::unique_ptr<GDIObj> > mvGDIObj;
        Point               maActPos;
        WMFRasterOp         mnRop;
        std::vector< std::shared_ptr<SaveStruct> > mvSaveStack;

        sal_uInt32          mnGfxMode;
        sal_uInt32          mnMapMode;

        XForm               maXForm;
        sal_Int32           mnDevOrgX;
        sal_Int32           mnDevOrgY;
        sal_Int32           mnDevWidth;
        sal_Int32           mnDevHeight;
        sal_Int32           mnWinOrgX;
        sal_Int32           mnWinOrgY;
        sal_Int32           mnWinExtX;
        sal_Int32           mnWinExtY;

        sal_Int32           mnPixX;            // Reference Device in pixel
        sal_Int32           mnPixY;            // Reference Device in pixel
        sal_Int32           mnMillX;           // Reference Device in Mill
        sal_Int32           mnMillY;           // Reference Device in Mill
        tools::Rectangle    mrclFrame;
        tools::Rectangle    mrclBounds;

        GDIMetaFile*        mpGDIMetaFile;

        SvStream*           mpInputStream;               // the WMF/EMF file to be read
        sal_uInt32          mnStartPos;
        sal_uInt32          mnEndPos;
        std::vector<std::unique_ptr<BSaveStruct>>    maBmpSaveList;

        // tdf#127471 always try to detect - only used with ScaledText
        ScaledFontDetectCorrectHelper maScaledFontHelper;

        bool                mbNopMode : 1;
        bool                mbFillStyleSelected : 1;
        bool                mbClipNeedsUpdate : 1;
        bool                mbComplexClip : 1;
        bool                mbIsMapWinSet : 1;
        bool                mbIsMapDevSet : 1;

        void                UpdateLineStyle();
        void                UpdateFillStyle();

        Point               ImplMap(const Point& rPt);
        Point               ImplScale(const Point& rPt);
        Size                ImplMap(const Size& rSize, bool bDoWorldTransform = true);
        tools::Rectangle    ImplMap(const tools::Rectangle& rRectangle);
        void                ImplMap(vcl::Font& rFont);
        tools::Polygon&     ImplMap(tools::Polygon& rPolygon);
        tools::PolyPolygon& ImplMap(tools::PolyPolygon& rPolyPolygon);
        void                ImplScale(tools::Polygon& rPolygon);
        tools::PolyPolygon& ImplScale(tools::PolyPolygon& rPolyPolygon);
        void                ImplResizeObjectArry(sal_uInt32 nNewEntry);
        void                ImplSetNonPersistentLineColorTransparenz();
        void                ImplDrawClippedPolyPolygon(const tools::PolyPolygon& rPolyPoly);
        void                ImplDrawBitmap(const Point& rPos, const Size& rSize, const BitmapEx& rBitmap);

    public:

        void                SetDevByWin(); //Hack to set varying defaults for incompletely defined files.
        void                SetDevOrg(const Point& rPoint);
        void                SetDevOrgOffset(sal_Int32 nXAdd, sal_Int32 nYAdd);
        void                SetDevExt(const Size& rSize, bool regular = true);
        void                ScaleDevExt(double fX, double fY);

        void                SetWinOrg(const Point& rPoint, bool bIsEMF = false);
        void                SetWinOrgOffset(sal_Int32 nX, sal_Int32 nY);
        void                SetWinExt(const Size& rSize, bool bIsEMF = false);
        void                ScaleWinExt(double fX, double fY);

        void                SetrclBounds(const tools::Rectangle& rRect);
        void                SetrclFrame(const tools::Rectangle& rRect);
        void                SetRefPix(const Size& rSize);
        void                SetRefMill(const Size& rSize);

        void                SetMapMode(sal_uInt32 mnMapMode);
        void                SetWorldTransform(const XForm& rXForm);
        void                ModifyWorldTransform(const XForm& rXForm, sal_uInt32 nMode);

        void                Push();
        void                Pop();

        WMFRasterOp         SetRasterOp(WMFRasterOp nRasterOp);
        void                StrokeAndFillPath(bool bStroke, bool bFill);

        void                SetGfxMode(sal_Int32 nGfxMode) { mnGfxMode = nGfxMode; };
        sal_Int32           GetGfxMode() const { return mnGfxMode; };
        void                SetBkMode(BkMode nMode);
        void                SetBkColor(const Color& rColor);
        void                SetTextColor(const Color& rColor);
        void                SetTextAlign(sal_uInt32 nAlign);

        void                CreateObject(std::unique_ptr<GDIObj> pObject);
        void                CreateObjectIndexed(sal_Int32 nIndex, std::unique_ptr<GDIObj> pObject);
        void                CreateObject();

        void                DeleteObject(sal_Int32 nIndex);
        void                SelectObject(sal_Int32 nIndex);
        rtl_TextEncoding    GetCharSet() const { return maFont.GetCharSet(); };
        const vcl::Font&    GetFont() const { return maFont; }
        void                SetTextLayoutMode(ComplexTextLayoutFlags nLayoutMode);

        void                ClearPath() { maPathObj.Init(); };
        void                ClosePath() { maPathObj.ClosePath(); };
        const tools::PolyPolygon& GetPathObj() const { return maPathObj; };

        void                MoveTo(const Point& rPoint, bool bRecordPath = false);
        void                LineTo(const Point& rPoint, bool bRecordPath = false);
        void                DrawPixel(const Point& rSource, const Color& rColor);
        void                DrawRect(const tools::Rectangle& rRect, bool bEdge = true);
        void                DrawRoundRect(const tools::Rectangle& rRect, const Size& rSize);
        void                DrawEllipse(const tools::Rectangle& rRect);
        void                DrawArc(
            const tools::Rectangle& rRect,
            const Point& rStartAngle,
            const Point& rEndAngle,
            bool bDrawTo = false
        );
        void                DrawPie(
            const tools::Rectangle& rRect,
            const Point& rStartAngle,
            const Point& rEndAngle
        );
        void                DrawChord(
            const tools::Rectangle& rRect,
            const Point& rStartAngle,
            const Point& rEndAngle
        );
        void                DrawPolygon(tools::Polygon rPolygon, bool bRecordPath);
        void                DrawPolyPolygon(tools::PolyPolygon& rPolyPolygon, bool bRecordPath = false);
        void                DrawPolyLine(tools::Polygon rPolygon,
            bool bDrawTo = false,
            bool bRecordPath = false
        );
        void                DrawPolyBezier(tools::Polygon rPolygon,
            bool bDrawTo,
            bool bRecordPath
        );
        void                DrawText(Point& rPosition,
            OUString const & rString,
            long* pDXArry = nullptr,
            long* pDYArry = nullptr,
            bool bRecordPath = false,
            sal_Int32 nGraphicsMode = GM_COMPATIBLE);

        void                ResolveBitmapActions(std::vector<std::unique_ptr<BSaveStruct>>& rSaveList);

        void                IntersectClipRect(const tools::Rectangle& rRect);
        void                ExcludeClipRect(const tools::Rectangle& rRect);
        void                MoveClipRegion(const Size& rSize);
        void                SetClipPath(
            const tools::PolyPolygon& rPolyPoly,
            sal_Int32 nClippingMode,
            bool bIsMapped
        );
        void                SetDefaultClipPath();
        void                UpdateClipRegion();
        void                AddFromGDIMetaFile(GDIMetaFile& rGDIMetaFile);

        void                PassEMFPlus(void const * pBuffer, sal_uInt32 nLength);
        void                PassEMFPlusHeaderInfo();

        Color               ReadColor();

        explicit            MtfTools(GDIMetaFile& rGDIMetaFile, SvStream& rStreamWMF);
        ~MtfTools() COVERITY_NOEXCEPT_FALSE;
    };
}

#endif

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