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 _SV_ALPHA_HXX
      21             : #define _SV_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             :     friend class BitmapEx;
      36             :     friend class OutputDevice;
      37             :     friend VCL_DLLPUBLIC SvStream& operator<<( SvStream&, const ImageList& );
      38             : 
      39             : private:
      40             : 
      41             :     SAL_DLLPRIVATE const Bitmap&    ImplGetBitmap() const;
      42             :     SAL_DLLPRIVATE void             ImplSetBitmap( const Bitmap& rBitmap );
      43             : 
      44             : public:
      45             : 
      46             :     AlphaMask();
      47             :     AlphaMask( const Bitmap& rBitmap );
      48             :     AlphaMask( const AlphaMask& rAlphaMask );
      49             :     AlphaMask( const Size& rSizePixel, sal_uInt8* pEraseTransparency = NULL );
      50             :     ~AlphaMask();
      51             : 
      52             :     AlphaMask&  operator=( const Bitmap& rBitmap );
      53          49 :     AlphaMask&  operator=( const AlphaMask& rAlphaMask )
      54             :     {
      55          49 :         return (AlphaMask&) Bitmap::operator=( rAlphaMask );
      56             :     }
      57             : 
      58         120 :     sal_Bool operator!() const
      59             :     {
      60         120 :         return Bitmap::operator!();
      61             :     }
      62             : 
      63             :     sal_Bool operator==( const AlphaMask& rAlphaMask ) const
      64             :     {
      65             :         return Bitmap::operator==( rAlphaMask );
      66             :     }
      67             : 
      68           0 :     sal_Bool operator!=( const AlphaMask& rAlphaMask ) const
      69             :     {
      70           0 :         return Bitmap::operator!=( rAlphaMask );
      71             :     }
      72             : 
      73             :     const MapMode&  GetPrefMapMode() const
      74             :     {
      75             :         return Bitmap::GetPrefMapMode();
      76             :     }
      77             : 
      78             :     void    SetPrefMapMode( const MapMode& rMapMode )
      79             :     {
      80             :         Bitmap::SetPrefMapMode( rMapMode );
      81             :     }
      82             : 
      83             :     const Size& GetPrefSize() const
      84             :     {
      85             :         return Bitmap::GetPrefSize();
      86             :     }
      87             : 
      88             :     void    SetPrefSize( const Size& rSize )
      89             :     {
      90             :         Bitmap::SetPrefSize( rSize );
      91             :     }
      92             : 
      93          56 :     Size    GetSizePixel() const
      94             :     {
      95          56 :         return Bitmap::GetSizePixel();
      96             :     }
      97             : 
      98             :     sal_uLong   GetSizeBytes() const
      99             :     {
     100             :         return Bitmap::GetSizeBytes();
     101             :     }
     102           0 :     sal_uLong   GetChecksum() const
     103             :     {
     104           0 :         return Bitmap::GetChecksum();
     105             :     }
     106             : 
     107             :     Bitmap  GetBitmap() const;
     108             : 
     109             :     sal_Bool    CopyPixel( const Rectangle& rRectDst, const Rectangle& rRectSrc,
     110             :                            const AlphaMask* pAlphaSrc = NULL);
     111             : 
     112             :     sal_Bool    Erase( sal_uInt8 cTransparency );
     113             :     sal_Bool    Replace( const Bitmap& rMask, sal_uInt8 rReplaceTransparency );
     114             :     sal_Bool    Replace( sal_uInt8 cSearchTransparency, sal_uInt8 cReplaceTransparency,
     115             :                          sal_uLong nTol = 0UL );
     116             : 
     117           2 :     BitmapReadAccess*   AcquireReadAccess()
     118             :     {
     119           2 :         return Bitmap::AcquireReadAccess();
     120             :     }
     121             : 
     122           4 :     BitmapWriteAccess*  AcquireWriteAccess()
     123             :     {
     124           4 :         return Bitmap::AcquireWriteAccess();
     125             :     }
     126             : 
     127             :     void    ReleaseAccess( BitmapReadAccess* pAccess );
     128             : 
     129             :     typedef vcl::ScopedBitmapAccess< BitmapReadAccess, AlphaMask, &AlphaMask::AcquireReadAccess >
     130             :         ScopedReadAccess;
     131             :     typedef vcl::ScopedBitmapAccess< BitmapWriteAccess, AlphaMask, &AlphaMask::AcquireWriteAccess >
     132             :         ScopedWriteAccess;
     133             : 
     134             :     sal_Bool    Read( SvStream& rIStm, sal_Bool bFileHeader = sal_True )
     135             :     {
     136             :         return Bitmap::Read( rIStm, bFileHeader );
     137             :     }
     138             :     sal_Bool    Write( SvStream& rOStm, sal_Bool bCompressed = sal_True, sal_Bool bFileHeader = sal_True ) const
     139             :     {
     140             :         return Bitmap::Write( rOStm, bCompressed, bFileHeader );
     141             :     }
     142             : 
     143             :     friend VCL_DLLPUBLIC SvStream& operator<<( SvStream& rOStm, const BitmapEx& rBitmapEx );
     144             :     friend VCL_DLLPUBLIC SvStream& operator>>( SvStream& rIStm, BitmapEx& rBitmapEx );
     145             : };
     146             : 
     147             : #endif // _SV_ALPHA_HXX
     148             : 
     149             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */