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       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 _SV_VIRDEV_HXX
      21             : #define _SV_VIRDEV_HXX
      22             : 
      23             : #include <tools/solar.h>
      24             : #include <vcl/dllapi.h>
      25             : #include <vcl/outdev.hxx>
      26             : #include <basebmp/bitmapdevice.hxx>
      27             : 
      28             : // -----------------
      29             : // - VirtualDevice -
      30             : // -----------------
      31             : 
      32             : class SalVirtualDevice;
      33             : struct SystemGraphicsData;
      34             : 
      35             : class VCL_DLLPUBLIC VirtualDevice : public OutputDevice
      36             : {
      37             :     friend class Application;
      38             :     friend class OutputDevice;
      39             : 
      40             : private:
      41             :     SalVirtualDevice*   mpVirDev;
      42             :     VirtualDevice*      mpPrev;
      43             :     VirtualDevice*      mpNext;
      44             :     sal_uInt16              mnBitCount;
      45             :     sal_Bool                mbScreenComp;
      46             :     sal_Int8            mnAlphaDepth;
      47             :     sal_uInt8               meRefDevMode;
      48             : 
      49             :     SAL_DLLPRIVATE void ImplInitVirDev( const OutputDevice* pOutDev, long nDX, long nDY, sal_uInt16 nBitCount, const SystemGraphicsData *pData = NULL );
      50             :     SAL_DLLPRIVATE sal_Bool InnerImplSetOutputSizePixel( const Size& rNewSize, sal_Bool bErase, const basebmp::RawMemorySharedArray &pBuffer );
      51             :     SAL_DLLPRIVATE sal_Bool ImplSetOutputSizePixel( const Size& rNewSize, sal_Bool bErase, const basebmp::RawMemorySharedArray &pBuffer );
      52             : 
      53             :     // Copy assignment is forbidden and not implemented.
      54             :     VirtualDevice (const VirtualDevice &);
      55             :     VirtualDevice & operator= (const VirtualDevice &);
      56             : 
      57             :     /** Used for alpha VDev, to set areas to opaque
      58             : 
      59             :         @since #i32109#
      60             :      */
      61             :     SAL_DLLPRIVATE void ImplFillOpaqueRectangle( const Rectangle& rRect );
      62             : 
      63             :     // TODO: add extra member for refdev backward compatibility options
      64             :     #define REFDEV_FORCE_ZERO_EXTLEAD 0x80
      65       43868 :     SAL_DLLPRIVATE bool ForceZeroExtleadBug() const
      66       43868 :         { return ((meRefDevMode & REFDEV_FORCE_ZERO_EXTLEAD) != 0); }
      67             : public:
      68             :                         VirtualDevice( sal_uInt16 nBitCount = 0 );
      69             :                         VirtualDevice( const OutputDevice& rCompDev,
      70             :                                        sal_uInt16 nBitCount = 0 );
      71             :     /** Create a virtual device with alpha channel
      72             : 
      73             :         @param rCompDev
      74             :         The generated vdev will be compatible to this device. By
      75             :         default, Application::GetDefaultDevice() is used here.
      76             : 
      77             :         @param nBitCount
      78             :         Bit depth of the generated virtual device. Use 0 here, to
      79             :         indicate: take default screen depth. Currently, only 0 and 1
      80             :         are allowed here, with 1 denoting binary mask.
      81             : 
      82             :         @param nAlphaBitCount
      83             :         Bit depth of the generated virtual device. Use 0 here, to
      84             :         indicate: take default screen depth. Currently, only 0 and 1
      85             :         are allowed here, with 1 denoting binary mask.
      86             :      */
      87             :                         VirtualDevice( const OutputDevice& rCompDev,
      88             :                                        sal_uInt16 nBitCount, sal_uInt16 nAlphaBitCount );
      89             : 
      90             :     /** Create a virtual device using an existing system dependent device or graphics context
      91             :         Any rendering will happen directly on the context and not on any intermediate bitmap.
      92             :         Note: This might not be suported on all platforms !
      93             :     */
      94             :                         VirtualDevice( const SystemGraphicsData *pData, sal_uInt16 nBitCount );
      95             : 
      96             :     virtual             ~VirtualDevice();
      97             : 
      98             :     sal_Bool                SetOutputSizePixel( const Size& rNewSize, sal_Bool bErase = sal_True );
      99             :     sal_Bool                SetOutputSizePixelScaleOffsetAndBuffer( const Size& rNewSize, const Fraction& rScale, const Point& rNewOffset, const basebmp::RawMemorySharedArray &pBuffer );
     100           0 :     sal_Bool                SetOutputSize( const Size& rNewSize, sal_Bool bErase = sal_True )
     101           0 :                             { return SetOutputSizePixel( LogicToPixel( rNewSize ), bErase ); }
     102             : 
     103             :     // reference device modes for different compatibility levels
     104             :     enum RefDevMode {   REFDEV_NONE = 0,
     105             :                         REFDEV_MODE06 = 1,      // 600 dpi
     106             :                         REFDEV_MODE_MSO1 = 3,
     107             :                         REFDEV_MODE_PDF1 = 4,
     108             :                         REFDEV_CUSTOM = 5
     109             :                     };
     110             : 
     111             :     void                SetReferenceDevice( RefDevMode );
     112             : 
     113             :     void                Compat_ZeroExtleadBug(); // enable workaround for #i60495#
     114             : 
     115             :     void                SetReferenceDevice( sal_Int32 i_nDPIX, sal_Int32 i_nDPIY );
     116             : 
     117             : private:
     118             :     SAL_DLLPRIVATE void ImplSetReferenceDevice( RefDevMode, sal_Int32 i_nDPIX, sal_Int32 i_nDPIY );
     119             : 
     120             : };
     121             : 
     122             : #endif // _SV_VIRDEV_HXX
     123             : 
     124             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */