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.
   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_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 <basegfx/utils/systemdependentdata.hxx>
  27 #include <memory>
  28
  29
  30 struct  BitmapBuffer;
  31 class   BitmapColor;
  32 class   BitmapPalette;
  33 class   SalGraphics;
  34 namespace Gdiplus { class Bitmap; }
  35
  36 class WinSalBitmap final: public SalBitmap, public basegfx::SystemDependentDataHolder
  37 {
  38 private:
  39     Size                maSize;
  40     HGLOBAL             mhDIB;
  41     HBITMAP             mhDDB;
  42
  43     sal_uInt16          mnBitCount;
  44
  45     std::shared_ptr<Gdiplus::Bitmap>    ImplCreateGdiPlusBitmap(const WinSalBitmap& rAlphaSource);
  46     std::shared_ptr<Gdiplus::Bitmap> ImplCreateGdiPlusBitmap();
  47
  48 public:
  49
  50     HGLOBAL             ImplGethDIB() const { return mhDIB; }
  51     HBITMAP             ImplGethDDB() const { return mhDDB; }
  52
  53     std::shared_ptr< Gdiplus::Bitmap > ImplGetGdiPlusBitmap(const WinSalBitmap* pAlphaSource = nullptr) const;
  54
  55     static HGLOBAL      ImplCreateDIB( const Size& rSize, vcl::PixelFormat ePixelFormat, const BitmapPalette& rPal );
  56     static HANDLE       ImplCopyDIBOrDDB( HANDLE hHdl, bool bDIB );
  57     static sal_uInt16   ImplGetDIBColorCount( HGLOBAL hDIB );
  58
  59 public:
  60
  61                         WinSalBitmap();
  62     virtual             ~WinSalBitmap() override;
  63
  64 public:
  65
  66     bool                        Create( HANDLE hBitmap );
  67     virtual bool                Create( const Size& rSize, vcl::PixelFormat ePixelFormat, const BitmapPalette& rPal ) override;
  68     virtual bool                Create( const SalBitmap& rSalBmpImpl ) override;
  69     virtual bool                Create( const SalBitmap& rSalBmpImpl, SalGraphics* pGraphics ) override;
  70     virtual bool                Create( const SalBitmap& rSalBmpImpl, vcl::PixelFormat eNewPixelFormat ) override;
  71     virtual bool                Create( const css::uno::Reference< css::rendering::XBitmapCanvas >& rBitmapCanvas,
  72                                            Size& rSize,
  73                                            bool bMask = false ) override;
  74
  75     virtual void                Destroy() override;
  76
  77     virtual Size                GetSize() const override { return maSize; }
  78     virtual sal_uInt16          GetBitCount() const override { return mnBitCount; }
  79
  80     virtual BitmapBuffer*       AcquireBuffer( BitmapAccessMode nMode ) override;
  81     virtual void                ReleaseBuffer( BitmapBuffer* pBuffer, BitmapAccessMode nMode ) override;
  82     virtual bool                GetSystemData( BitmapSystemData& rData ) override;
  83
  84     virtual bool                ScalingSupported() const override;
  85     virtual bool                Scale( const double& rScaleX, const double& rScaleY, BmpScaleFlag nScaleFlag ) override;
  86     virtual bool                Replace( const Color& rSearchColor, const Color& rReplaceColor, sal_uInt8 nTol ) override;
  87
  88     // exclusive management op's for SystemDependentData at WinSalBitmap
  89     template<class T>
  90     std::shared_ptr<T> getSystemDependentData() const
  91     {
  92         return std::static_pointer_cast<T>(basegfx::SystemDependentDataHolder::getSystemDependentData(typeid(T).hash_code()));
  93     }
  94
  95     template<class T, class... Args>
  96     std::shared_ptr<T> addOrReplaceSystemDependentData(basegfx::SystemDependentDataManager& manager, Args&&... args) const
  97     {
  98         std::shared_ptr<T> r = std::make_shared<T>(manager, std::forward<Args>(args)...);
  99
 100         // tdf#129845 only add to buffer if a relevant buffer time is estimated
 101         if(r->calculateCombinedHoldCyclesInSeconds() > 0)
 102         {
 103             basegfx::SystemDependentData_SharedPtr r2(r);
 104             const_cast< WinSalBitmap* >(this)->basegfx::SystemDependentDataHolder::addOrReplaceSystemDependentData(r2);
 105         }
 106
 107         return r;
 108     }
 109 };
 110
 111 #endif // INCLUDED_VCL_INC_WIN_SALBMP_H
 112
 113 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */