vcl/inc/win/salvd.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 #pragma once
  21
  22 #include <sal/config.h>
  23 #include <win/scoped_gdi.hxx>
  24
  25 #include <memory>
  26
  27 #include <salvd.hxx>
  28
  29 class WinSalGraphics;
  30
  31
  32 class WinSalVirtualDevice : public SalVirtualDevice
  33 {
  34 private:
  35     HDC                     mhLocalDC;              // HDC or 0 for Cache Device
  36     ScopedHBITMAP           mhBmp;                  // Memory Bitmap
  37     HBITMAP                 mhDefBmp;               // Default Bitmap
  38     std::unique_ptr<WinSalGraphics> mpGraphics;     // current VirDev graphics
  39     WinSalVirtualDevice*    mpNext;                 // next VirDev
  40     sal_uInt16              mnBitCount;             // BitCount (0 or 1)
  41     bool                    mbGraphics;             // is Graphics used
  42     bool                    mbForeignDC;            // uses a foreign DC instead of a bitmap
  43     tools::Long                    mnWidth;
  44     tools::Long                    mnHeight;
  45
  46 public:
  47     HDC getHDC() const { return mhLocalDC; }
  48     WinSalGraphics* getGraphics() const { return mpGraphics.get(); }
  49     void setGraphics(WinSalGraphics* pVirGraphics) { mpGraphics.reset(pVirGraphics); }
  50     WinSalVirtualDevice* getNext() const { return mpNext; }
  51
  52     WinSalVirtualDevice(HDC hDC = nullptr, HBITMAP hBMP = nullptr, sal_uInt16 nBitCount = 0, bool bForeignDC = false, tools::Long nWidth = 0, tools::Long nHeight = 0);
  53     virtual ~WinSalVirtualDevice() override;
  54
  55     virtual SalGraphics*    AcquireGraphics() override;
  56     virtual void            ReleaseGraphics( SalGraphics* pGraphics ) override;
  57     virtual bool            SetSize( tools::Long nNewDX, tools::Long nNewDY ) override;
  58
  59     static HBITMAP ImplCreateVirDevBitmap(HDC hDC, tools::Long nDX, tools::Long nDY, sal_uInt16 nBitCount, void **ppDummy);
  60
  61     // SalGeometryProvider
  62     virtual tools::Long GetWidth() const override { return mnWidth; }
  63     virtual tools::Long GetHeight() const override { return mnHeight; }
  64 };
  65
  66 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */