Line data    Source code

       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_ALPHA_HXX
      21             : #define INCLUDED_VCL_ALPHA_HXX
      22             : 
      23             : #include <vcl/dllapi.h>
      24             : #include <vcl/bitmap.hxx>
      25             : 
      26             : 
      27             : // - AlphaMask -
      28             : 
      29             : 
      30             : class ImageList;
      31             : class BitmapEx;
      32             : 
      33             : class VCL_DLLPUBLIC AlphaMask : private Bitmap
      34             : {
      35             : private:
      36             :     friend class BitmapEx;
      37             :     friend class OutputDevice;
      38             :     friend bool VCL_DLLPUBLIC ReadDIBBitmapEx(BitmapEx& rTarget, SvStream& rIStm);
      39             : 
      40             :     SAL_DLLPRIVATE const Bitmap&    ImplGetBitmap() const;
      41             :     SAL_DLLPRIVATE void             ImplSetBitmap( const Bitmap& rBitmap );
      42             : 
      43             : public:
      44             : 
      45             :     AlphaMask();
      46             :     AlphaMask( const Bitmap& rBitmap );
      47             :     AlphaMask( const AlphaMask& rAlphaMask );
      48             :     AlphaMask( const Size& rSizePixel, sal_uInt8* pEraseTransparency = NULL );
      49             :     virtual ~AlphaMask();
      50             : 
      51             :     AlphaMask&  operator=( const Bitmap& rBitmap );
      52           0 :     AlphaMask&  operator=( const AlphaMask& rAlphaMask )
      53             :     {
      54           0 :         return (AlphaMask&) Bitmap::operator=( rAlphaMask );
      55             :     }
      56             : 
      57           0 :     bool operator!() const
      58             :     {
      59           0 :         return Bitmap::operator!();
      60             :     }
      61             : 
      62             :     bool operator==( const AlphaMask& rAlphaMask ) const
      63             :     {
      64             :         return Bitmap::operator==( rAlphaMask );
      65             :     }
      66             : 
      67           0 :     bool operator!=( const AlphaMask& rAlphaMask ) const
      68             :     {
      69           0 :         return Bitmap::operator!=( rAlphaMask );
      70             :     }
      71             : 
      72             :     const MapMode&  GetPrefMapMode() const
      73             :     {
      74             :         return Bitmap::GetPrefMapMode();
      75             :     }
      76             : 
      77           0 :     void    SetPrefMapMode( const MapMode& rMapMode )
      78             :     {
      79           0 :         Bitmap::SetPrefMapMode( rMapMode );
      80           0 :     }
      81             : 
      82             :     const Size& GetPrefSize() const
      83             :     {
      84             :         return Bitmap::GetPrefSize();
      85             :     }
      86             : 
      87           0 :     void    SetPrefSize( const Size& rSize )
      88             :     {
      89           0 :         Bitmap::SetPrefSize( rSize );
      90           0 :     }
      91             : 
      92           0 :     Size    GetSizePixel() const
      93             :     {
      94           0 :         return Bitmap::GetSizePixel();
      95             :     }
      96             : 
      97             :     sal_uLong   GetSizeBytes() const
      98             :     {
      99             :         return Bitmap::GetSizeBytes();
     100             :     }
     101           0 :     sal_uLong   GetChecksum() const
     102             :     {
     103           0 :         return Bitmap::GetChecksum();
     104             :     }
     105             : 
     106             :     Bitmap  GetBitmap() const;
     107             : 
     108             :     bool    CopyPixel( const Rectangle& rRectDst, const Rectangle& rRectSrc,
     109             :                            const AlphaMask* pAlphaSrc = NULL);
     110             : 
     111             :     bool    Erase( sal_uInt8 cTransparency );
     112             :     bool    Replace( const Bitmap& rMask, sal_uInt8 rReplaceTransparency );
     113             :     bool    Replace( sal_uInt8 cSearchTransparency, sal_uInt8 cReplaceTransparency,
     114             :                          sal_uLong nTol = 0UL );
     115             : 
     116           0 :     BitmapReadAccess*   AcquireReadAccess()
     117             :     {
     118           0 :         return Bitmap::AcquireReadAccess();
     119             :     }
     120             : 
     121           0 :     BitmapWriteAccess*  AcquireWriteAccess()
     122             :     {
     123           0 :         return Bitmap::AcquireWriteAccess();
     124             :     }
     125             : 
     126             :     void    ReleaseAccess( BitmapReadAccess* pAccess );
     127             : 
     128             :     typedef vcl::ScopedBitmapAccess< BitmapReadAccess, AlphaMask, &AlphaMask::AcquireReadAccess >
     129             :         ScopedReadAccess;
     130             :     typedef vcl::ScopedBitmapAccess< BitmapWriteAccess, AlphaMask, &AlphaMask::AcquireWriteAccess >
     131             :         ScopedWriteAccess;
     132             : };
     133             : 
     134             : #endif // INCLUDED_VCL_ALPHA_HXX
     135             : 
     136             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */