vcl/source/filter/wmf/emfwr.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 #pragma once
  21
  22 #include <vcl/gdimtf.hxx>
  23 #include <vcl/virdev.hxx>
  24
  25 class LineInfo;
  26 namespace basegfx { class B2DPolygon; }
  27 enum class EmfPlusRecordType;
  28
  29 class EMFWriter
  30 {
  31 private:
  32
  33     ScopedVclPtr<VirtualDevice> maVDev;
  34     MapMode             maDestMapMode;
  35     SvStream& m_rStm;
  36     std::vector<bool>       mHandlesUsed;
  37     sal_uLong               mnHandleCount;
  38     sal_uLong               mnRecordCount;
  39     sal_uInt64              mnRecordPos;
  40     sal_uInt64              mnRecordPlusPos;
  41     bool                mbRecordOpen;
  42     bool                mbRecordPlusOpen;
  43     bool                mbLineChanged;
  44     sal_uInt32          mnLineHandle;
  45     bool                mbFillChanged;
  46     sal_uInt32          mnFillHandle;
  47     bool                mbTextChanged;
  48     sal_uInt32          mnTextHandle;
  49     sal_uInt32          mnHorTextAlign;
  50
  51     void                ImplBeginRecord( sal_uInt32 nType );
  52     void                ImplEndRecord();
  53     void                ImplBeginPlusRecord( EmfPlusRecordType nType, sal_uInt16 nFlags );
  54     void                ImplEndPlusRecord();
  55     void                ImplPlusRecord( EmfPlusRecordType nType, sal_uInt16 nFlags );
  56     void                ImplBeginCommentRecord( sal_Int32 nCommentType );
  57     void                ImplEndCommentRecord();
  58
  59     sal_uLong               ImplAcquireHandle();
  60     void                ImplReleaseHandle( sal_uLong nHandle );
  61
  62     bool                ImplPrepareHandleSelect( sal_uInt32& rHandle, sal_uLong nSelectType );
  63     void                ImplCheckLineAttr();
  64     void                ImplCheckFillAttr();
  65     void                ImplCheckTextAttr();
  66
  67     void                ImplWriteColor( const Color& rColor );
  68     void                ImplWriteRasterOp( RasterOp eRop );
  69     void                ImplWriteExtent( tools::Long nExtent );
  70     void                ImplWritePoint( const Point& rPoint );
  71     void                ImplWriteSize( const Size& rSize);
  72     void                ImplWriteRect( const tools::Rectangle& rRect );
  73     void                ImplWritePath( const tools::PolyPolygon& rPolyPoly, bool bClose );
  74     void                ImplWritePolygonRecord( const tools::Polygon& rPoly, bool bClose );
  75     void                ImplWritePolyPolygonRecord( const tools::PolyPolygon& rPolyPoly );
  76     void                ImplWriteBmpRecord( const Bitmap& rBmp, const Point& rPt, const Size& rSz, sal_uInt32 nROP );
  77     void                ImplWriteTextRecord( const Point& rPos, const OUString& rText, KernArraySpan pDXArray, sal_uInt32 nWidth );
  78
  79     void                Impl_handleLineInfoPolyPolygons(const LineInfo& rInfo, const basegfx::B2DPolygon& rLinePolygon);
  80     void                ImplWrite( const GDIMetaFile& rMtf );
  81     void                WriteEMFPlusHeader( const Size &rMtfSizePix, const Size &rMtfSizeLog );
  82     void                ImplWritePlusEOF();
  83     void                ImplWritePlusFillPolygonRecord( const tools::Polygon& rPoly, sal_uInt32 nTrans );
  84     void                ImplWritePlusColor( const Color& rColor, sal_uInt32 nTrans );
  85     void                ImplWritePlusPoint( const Point& rPoint );
  86
  87 public:
  88
  89     explicit EMFWriter(SvStream &rStream)
  90         : maVDev( VclPtr<VirtualDevice>::Create() )
  91         , m_rStm(rStream)
  92         , mnHandleCount(0)
  93         , mnRecordCount(0)
  94         , mnRecordPos(0)
  95         , mnRecordPlusPos(0)
  96         , mbRecordOpen(false)
  97         , mbRecordPlusOpen(false)
  98         , mbLineChanged(false)
  99         , mnLineHandle(0)
 100         , mbFillChanged(false)
 101         , mnFillHandle(0)
 102         , mbTextChanged(false)
 103         , mnTextHandle(0)
 104         , mnHorTextAlign(0)
 105     {
 106     }
 107
 108     bool WriteEMF(const GDIMetaFile& rMtf);
 109 };
 110
 111 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */