include/vcl/gdimtf.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_VCL_GDIMTF_HXX
  21 #define INCLUDED_VCL_GDIMTF_HXX
  22
  23 #include <vcl/dllapi.h>
  24 #include <tools/gen.hxx>
  25 #include <tools/solar.h>
  26 #include <vcl/mapmod.hxx>
  27 #include <vcl/bitmap.hxx>
  28 #include <vcl/vclptr.hxx>
  29 #include <vector>
  30
  31 class OutputDevice;
  32 class MetaAction;
  33 class SvStream;
  34 class Color;
  35 class BitmapEx;
  36 namespace tools {
  37     class Polygon;
  38     class PolyPolygon;
  39 }
  40 class Gradient;
  41 struct ImplMetaReadData;
  42
  43 #define GDI_METAFILE_END                (size_t(0xFFFFFFFF))
  44
  45 enum class MtfConversion
  46 {
  47     N1BitThreshold,
  48     N8BitGreys
  49 };
  50
  51
  52 typedef Color (*ColorExchangeFnc)( const Color& rColor, const void* pColParam );
  53 typedef BitmapEx (*BmpExchangeFnc)( const BitmapEx& rBmpEx, const void* pBmpParam );
  54
  55 class VCL_DLLPUBLIC GDIMetaFile final
  56 {
  57 private:
  58     ::std::vector< rtl::Reference<MetaAction> > m_aList;
  59     size_t          m_nCurrentActionElement;
  60
  61     MapMode         m_aPrefMapMode;
  62     Size            m_aPrefSize;
  63     GDIMetaFile*    m_pPrev;
  64     GDIMetaFile*    m_pNext;
  65     VclPtr<OutputDevice> m_pOutDev;
  66     bool            m_bPause;
  67     bool            m_bRecord;
  68     bool            m_bUseCanvas;
  69
  70
  71     SAL_DLLPRIVATE static Color         ImplColAdjustFnc( const Color& rColor, const void* pColParam );
  72     SAL_DLLPRIVATE static BitmapEx      ImplBmpAdjustFnc( const BitmapEx& rBmpEx, const void* pBmpParam );
  73
  74     SAL_DLLPRIVATE static Color         ImplColConvertFnc( const Color& rColor, const void* pColParam );
  75     SAL_DLLPRIVATE static BitmapEx      ImplBmpConvertFnc( const BitmapEx& rBmpEx, const void* pBmpParam );
  76
  77     SAL_DLLPRIVATE static Color         ImplColMonoFnc( const Color& rColor, const void* pColParam );
  78     SAL_DLLPRIVATE static BitmapEx      ImplBmpMonoFnc( const BitmapEx& rBmpEx, const void* pBmpParam );
  79
  80     SAL_DLLPRIVATE static Color         ImplColReplaceFnc( const Color& rColor, const void* pColParam );
  81     SAL_DLLPRIVATE static BitmapEx      ImplBmpReplaceFnc( const BitmapEx& rBmpEx, const void* pBmpParam );
  82
  83     SAL_DLLPRIVATE void                 ImplExchangeColors( ColorExchangeFnc pFncCol, const void* pColParam,
  84                                                             BmpExchangeFnc pFncBmp, const void* pBmpParam );
  85
  86     SAL_DLLPRIVATE static Point         ImplGetRotatedPoint( const Point& rPt, const Point& rRotatePt,
  87                                                              const Size& rOffset, double fSin, double fCos );
  88     SAL_DLLPRIVATE static tools::Polygon ImplGetRotatedPolygon( const tools::Polygon& rPoly, const Point& rRotatePt,
  89                                                                const Size& rOffset, double fSin, double fCos );
  90     SAL_DLLPRIVATE static tools::PolyPolygon ImplGetRotatedPolyPolygon( const tools::PolyPolygon& rPoly, const Point& rRotatePt,
  91                                                                    const Size& rOffset, double fSin, double fCos );
  92     SAL_DLLPRIVATE static void          ImplAddGradientEx( GDIMetaFile& rMtf,
  93                                                            const OutputDevice& rMapDev,
  94                                                            const tools::PolyPolygon& rPolyPoly,
  95                                                            const Gradient& rGrad );
  96
  97     SAL_DLLPRIVATE bool                 ImplPlayWithRenderer(OutputDevice& rOut, const Point& rPos, Size rLogicDestSize);
  98
  99     void                                Linker( OutputDevice* pOut, bool bLink );
 100
 101 public:
 102                     GDIMetaFile();
 103                     GDIMetaFile( const GDIMetaFile& rMtf );
 104                     ~GDIMetaFile();
 105
 106     GDIMetaFile&    operator=( const GDIMetaFile& rMtf );
 107     bool            operator==( const GDIMetaFile& rMtf ) const;
 108     bool            operator!=( const GDIMetaFile& rMtf ) const { return !( *this == rMtf ); }
 109
 110     void            Clear();
 111     void            Mirror( BmpMirrorFlags nMirrorFlags );
 112     void            Move( tools::Long nX, tools::Long nY );
 113     // additional Move method getting specifics how to handle MapMode( MapUnit::MapPixel )
 114     void            Move( tools::Long nX, tools::Long nY, tools::Long nDPIX, tools::Long nDPIY );
 115     void            Scale( double fScaleX, double fScaleY );
 116     void            Scale( const Fraction& rScaleX, const Fraction& rScaleY );
 117     void            Rotate( Degree10 nAngle10 );
 118     void            Clip( const tools::Rectangle& );
 119     bool            HasTransparentActions() const;
 120
 121     /* get the bound rect of the contained actions
 122      * caveats:
 123      * - clip actions will limit the contained actions,
 124      *   but the current clipregion of the passed OutputDevice will not
 125      * - coordinates of actions will be transformed to preferred mapmode
 126      * - the returned rectangle is relative to the preferred mapmode of the metafile
 127     */
 128     tools::Rectangle       GetBoundRect( OutputDevice& i_rReference ) const;
 129
 130     void            Adjust( short nLuminancePercent, short nContrastPercent,
 131                             short nChannelRPercent = 0,  short nChannelGPercent = 0,
 132                             short nChannelBPercent = 0,  double fGamma = 1.0,
 133                             bool bInvert = false, bool msoBrightness = false );
 134
 135     void            Convert( MtfConversion eConversion );
 136     void            ReplaceColors( const Color* pSearchColors, const Color* rReplaceColors,
 137                                    sal_uLong nColorCount );
 138
 139     GDIMetaFile     GetMonochromeMtf( const Color& rCol ) const;
 140
 141     void            Record( OutputDevice* pOutDev );
 142     bool            IsRecord() const { return m_bRecord; }
 143
 144     void            Play(GDIMetaFile& rMtf);
 145     void            Play(OutputDevice& rOutDev, size_t nPos = GDI_METAFILE_END);
 146     void            Play(OutputDevice& rOutDev, const Point& rPos, const Size& rSize);
 147
 148     void            Pause( bool bPause );
 149     bool            IsPause() const { return m_bPause; }
 150
 151     void            Stop();
 152
 153     void            WindStart();
 154     void            WindPrev();
 155
 156     size_t          GetActionSize() const;
 157
 158     void            AddAction(const rtl::Reference<MetaAction>& pAction);
 159     void            AddAction(const rtl::Reference<MetaAction>& pAction, size_t nPos);
 160     void            push_back(const rtl::Reference<MetaAction>& pAction);
 161     /**
 162      * @param pAction takes ownership
 163      * @param nAction the action to replace
 164      */
 165     void ReplaceAction( rtl::Reference<MetaAction> pAction, size_t nAction );
 166
 167     MetaAction*     FirstAction();
 168     MetaAction*     NextAction();
 169     MetaAction*     GetAction( size_t nAction ) const;
 170     MetaAction*     GetCurAction() const { return GetAction( m_nCurrentActionElement ); }
 171
 172     const Size&     GetPrefSize() const { return m_aPrefSize; }
 173     void            SetPrefSize( const Size& rSize ) { m_aPrefSize = rSize; }
 174
 175     const MapMode&  GetPrefMapMode() const { return m_aPrefMapMode; }
 176     void            SetPrefMapMode( const MapMode& rMapMode ) { m_aPrefMapMode = rMapMode; }
 177
 178
 179     sal_uLong       GetSizeBytes() const;
 180
 181     /// Creates an antialiased thumbnail
 182     bool            CreateThumbnail(BitmapEx& rBitmapEx,
 183                                     BmpConversion nColorConversion = BmpConversion::N24Bit,
 184                                     BmpScaleFlag nScaleFlag = BmpScaleFlag::BestQuality) const;
 185
 186     void            UseCanvas( bool _bUseCanvas );
 187     bool            GetUseCanvas() const { return m_bUseCanvas; }
 188
 189     /// Dumps the meta actions as XML in metafile.xml.
 190     void dumpAsXml(const char* pFileName = nullptr) const;
 191 };
 192
 193 #endif // INCLUDED_VCL_GDIMTF_HXX
 194
 195 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */