vcl/inc/win/salbmp.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   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_INC_WIN_SALBMP_H
  21 #define INCLUDED_VCL_INC_WIN_SALBMP_H
  22
  23 #include <tools/gen.hxx>
  24 #include <win/wincomp.hxx>
  25 #include <salbmp.hxx>
  26 #include <boost/shared_ptr.hpp>
  27
  28 // - SalBitmap  -
  29
  30 struct  BitmapBuffer;
  31 class   BitmapColor;
  32 class   BitmapPalette;
  33 class   SalGraphics;
  34 namespace Gdiplus { class Bitmap; }
  35 typedef boost::shared_ptr< Gdiplus::Bitmap > GdiPlusBmpPtr;
  36
  37 class WinSalBitmap : public SalBitmap
  38 {
  39 private:
  40     friend class GdiPlusBuffer; // allow buffer to remove maGdiPlusBitmap and mpAssociatedAlpha eventually
  41
  42     Size                maSize;
  43     HGLOBAL             mhDIB;
  44     HBITMAP             mhDDB;
  45
  46     // the buffered evtl. used Gdiplus::Bitmap instance. It is managed by
  47     // GdiPlusBuffer. To make this safe, it is only handed out as shared
  48     // pointer; the GdiPlusBuffer may delete the local instance.
  49
  50     // mpAssociatedAlpha holds the last WinSalBitmap used to construct an
  51     // evtl. buffered GdiPlusBmp. This is needed since the GdiPlusBmp is a single
  52     // instance and remembered only on the content-WinSalBitmap, not on the
  53     // alpha-WinSalBitmap.
  54     GdiPlusBmpPtr       maGdiPlusBitmap;
  55     const WinSalBitmap* mpAssociatedAlpha;
  56
  57     sal_uInt16          mnBitCount;
  58
  59     Gdiplus::Bitmap*    ImplCreateGdiPlusBitmap(const WinSalBitmap& rAlphaSource);
  60     Gdiplus::Bitmap*    ImplCreateGdiPlusBitmap();
  61
  62 public:
  63
  64     HGLOBAL             ImplGethDIB() const { return mhDIB; }
  65     HBITMAP             ImplGethDDB() const { return mhDDB; }
  66
  67     GdiPlusBmpPtr ImplGetGdiPlusBitmap(const WinSalBitmap* pAlphaSource = 0) const;
  68
  69     static HGLOBAL      ImplCreateDIB( const Size& rSize, sal_uInt16 nBitCount, const BitmapPalette& rPal );
  70     static HANDLE       ImplCopyDIBOrDDB( HANDLE hHdl, bool bDIB );
  71     static sal_uInt16   ImplGetDIBColorCount( HGLOBAL hDIB );
  72     static void         ImplDecodeRLEBuffer( const BYTE* pSrcBuf, BYTE* pDstBuf,
  73                                              const Size& rSizePixel, bool bRLE4 );
  74
  75 public:
  76
  77                         WinSalBitmap();
  78     virtual             ~WinSalBitmap();
  79
  80 public:
  81
  82     bool                        Create( HANDLE hBitmap, bool bDIB, bool bCopyHandle );
  83     virtual bool                Create( const Size& rSize, sal_uInt16 nBitCount, const BitmapPalette& rPal ) SAL_OVERRIDE;
  84     virtual bool                Create( const SalBitmap& rSalBmpImpl ) SAL_OVERRIDE;
  85     virtual bool                Create( const SalBitmap& rSalBmpImpl, SalGraphics* pGraphics ) SAL_OVERRIDE;
  86     virtual bool                Create( const SalBitmap& rSalBmpImpl, sal_uInt16 nNewBitCount ) SAL_OVERRIDE;
  87     virtual bool                Create( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmapCanvas >& rBitmapCanvas,
  88                                            Size& rSize,
  89                                            bool bMask = false ) SAL_OVERRIDE;
  90
  91     virtual void                Destroy() SAL_OVERRIDE;
  92
  93     virtual Size                GetSize() const SAL_OVERRIDE { return maSize; }
  94     virtual sal_uInt16          GetBitCount() const SAL_OVERRIDE { return mnBitCount; }
  95
  96     virtual BitmapBuffer*       AcquireBuffer( BitmapAccessMode nMode ) SAL_OVERRIDE;
  97     virtual void                ReleaseBuffer( BitmapBuffer* pBuffer, BitmapAccessMode nMode ) SAL_OVERRIDE;
  98     virtual bool                GetSystemData( BitmapSystemData& rData ) SAL_OVERRIDE;
  99
 100     virtual bool                Crop( const Rectangle& rRectPixel ) SAL_OVERRIDE;
 101     virtual bool                Erase( const Color& rFillColor ) SAL_OVERRIDE;
 102     virtual bool                Scale( const double& rScaleX, const double& rScaleY, BmpScaleFlag nScaleFlag ) SAL_OVERRIDE;
 103     virtual bool                Replace( const Color& rSearchColor, const Color& rReplaceColor, sal_uLong nTol ) SAL_OVERRIDE;
 104 };
 105
 106 #endif // INCLUDED_VCL_INC_WIN_SALBMP_H
 107
 108 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */