vcl/source/gdi/impbmp.cxx

   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 #include <vcl/bitmap.hxx>
  21
  22 #include <svdata.hxx>
  23 #include <salinst.hxx>
  24 #include <salbmp.hxx>
  25 #include <impbmp.hxx>
  26
  27 ImpBitmap::ImpBitmap()
  28     : mpSalBitmap(ImplGetSVData()->mpDefInst->CreateSalBitmap())
  29 {
  30 }
  31
  32 ImpBitmap::ImpBitmap(SalBitmap* pBitmap)
  33     : mpSalBitmap(pBitmap)
  34 {
  35 }
  36
  37 ImpBitmap::~ImpBitmap()
  38 {
  39 }
  40
  41 bool ImpBitmap::ImplIsEqual(const ImpBitmap& rBmp) const
  42 {
  43     return (rBmp.ImplGetSize() == ImplGetSize() &&
  44         rBmp.ImplGetBitCount() == ImplGetBitCount() &&
  45         rBmp.ImplGetChecksum() == ImplGetChecksum());
  46 }
  47
  48 bool ImpBitmap::ImplCreate(const Size& rSize, sal_uInt16 nBitCount, const BitmapPalette& rPal)
  49 {
  50     return mpSalBitmap->Create( rSize, nBitCount, rPal );
  51 }
  52
  53 bool ImpBitmap::ImplCreate( const ImpBitmap& rImpBitmap )
  54 {
  55     return mpSalBitmap->Create( *rImpBitmap.mpSalBitmap );
  56 }
  57
  58 bool ImpBitmap::ImplCreate( const ImpBitmap& rImpBitmap, SalGraphics* pGraphics )
  59 {
  60     return mpSalBitmap->Create( *rImpBitmap.mpSalBitmap, pGraphics );
  61 }
  62
  63 bool ImpBitmap::ImplCreate( const ImpBitmap& rImpBitmap, sal_uInt16 nNewBitCount )
  64 {
  65     return mpSalBitmap->Create( *rImpBitmap.mpSalBitmap, nNewBitCount );
  66 }
  67
  68 Size ImpBitmap::ImplGetSize() const
  69 {
  70     return mpSalBitmap->GetSize();
  71 }
  72
  73 sal_uInt16 ImpBitmap::ImplGetBitCount() const
  74 {
  75     sal_uInt16 nBitCount = mpSalBitmap->GetBitCount();
  76     return ( nBitCount <= 4 ) ? ( ( nBitCount <= 1 ) ? 1 : 4 ):
  77                                 ( ( nBitCount <= 8 ) ? 8 : 24);
  78 }
  79
  80 BitmapBuffer* ImpBitmap::ImplAcquireBuffer( BitmapAccessMode nMode )
  81 {
  82     return mpSalBitmap->AcquireBuffer( nMode );
  83 }
  84
  85 void ImpBitmap::ImplReleaseBuffer( BitmapBuffer* pBuffer, BitmapAccessMode nMode )
  86 {
  87     mpSalBitmap->ReleaseBuffer( pBuffer, nMode );
  88
  89     if( nMode == BitmapAccessMode::Write )
  90         ImplInvalidateChecksum();
  91 }
  92
  93 BitmapChecksum ImpBitmap::ImplGetChecksum() const
  94 {
  95     SalBitmap::ChecksumType aChecksum;
  96     mpSalBitmap->GetChecksum(aChecksum);
  97     return aChecksum;
  98 }
  99
 100 void ImpBitmap::ImplInvalidateChecksum()
 101 {
 102     mpSalBitmap->InvalidateChecksum();
 103 }
 104
 105 bool ImpBitmap::ImplScalingSupported() const
 106 {
 107     return mpSalBitmap->ScalingSupported();
 108 }
 109
 110 bool ImpBitmap::ImplScale( const double& rScaleX, const double& rScaleY, BmpScaleFlag nScaleFlag )
 111 {
 112     return mpSalBitmap->Scale( rScaleX, rScaleY, nScaleFlag );
 113 }
 114
 115 bool ImpBitmap::ImplReplace( const Color& rSearchColor, const Color& rReplaceColor, sal_uLong nTol )
 116 {
 117     return mpSalBitmap->Replace( rSearchColor, rReplaceColor, nTol );
 118 }
 119
 120 bool ImpBitmap::ImplConvert( BmpConversion eConversion )
 121 {
 122     // avoid large chunk of obsolete and hopefully rarely used conversions.
 123     if (eConversion != BmpConversion::N8BitGreys)
 124         return false;
 125
 126     // frequently used conversion for creating alpha masks
 127     return mpSalBitmap->ConvertToGreyscale();
 128 }
 129
 130 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */