vcl/inc/salvd.hxx

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   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
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   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_SALVD_HXX
  21 #define INCLUDED_VCL_INC_SALVD_HXX
  22
  23 #include <basebmp/bitmapdevice.hxx>
  24 #include <vcl/dllapi.h>
  25 #include <salgeom.hxx>
  26
  27 class SalGraphics;
  28
  29 class VCL_PLUGIN_PUBLIC SalVirtualDevice
  30         : public SalGeometryProvider
  31 {
  32 public:
  33     SalVirtualDevice() {}
  34     virtual ~SalVirtualDevice();
  35
  36     // SalGeometryProvider
  37     virtual bool IsOffScreen() const SAL_OVERRIDE { return true; }
  38
  39     // SalGraphics or NULL, but two Graphics for all SalVirtualDevices
  40     // must be returned
  41     virtual SalGraphics*    AcquireGraphics() = 0;
  42     virtual void            ReleaseGraphics( SalGraphics* pGraphics ) = 0;
  43
  44     // Set new size, without saving the old contents
  45     virtual bool            SetSize( long nNewDX, long nNewDY ) = 0;
  46
  47     // Set new size using a buffer at the given address
  48     virtual bool            SetSizeUsingBuffer( long nNewDX, long nNewDY,
  49                                                 const basebmp::RawMemorySharedArray & /* pBuffer */,
  50                                                 const bool /* bTopDown */
  51                                               )
  52         {
  53             // Only the headless virtual device has an implementation that uses
  54             // pBuffer (and bTopDown).
  55             return SetSize( nNewDX, nNewDY );
  56         }
  57 };
  58
  59 #endif // INCLUDED_VCL_INC_SALVD_HXX
  60
  61 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */