lotuswordpro/source/filter/lwpbackgroundstuff.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*************************************************************************
   3  *
   4  *  The Contents of this file are made available subject to the terms of
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   7  *         - GNU Lesser General Public License Version 2.1
   8  *         - Sun Industry Standards Source License Version 1.1
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  10  *  Sun Microsystems Inc., October, 2000
  11  *
  12  *  GNU Lesser General Public License Version 2.1
  13  *  =============================================
  14  *  Copyright 2000 by Sun Microsystems, Inc.
  15  *  901 San Antonio Road, Palo Alto, CA 94303, USA
  16  *
  17  *  This library is free software; you can redistribute it and/or
  18  *  modify it under the terms of the GNU Lesser General Public
  19  *  License version 2.1, as published by the Free Software Foundation.
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  22  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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  24  *  Lesser General Public License for more details.
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  31  *
  32  *  Sun Industry Standards Source License Version 1.1
  33  *  =================================================
  34  *  The contents of this file are subject to the Sun Industry Standards
  35  *  Source License Version 1.1 (the "License"); You may not use this file
  36  *  except in compliance with the License. You may obtain a copy of the
  37  *  License at http://www.openoffice.org/license.html.
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  39  *  Software provided under this License is provided on an "AS IS" basis,
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  43  *  See the License for the specific provisions governing your rights and
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  45  *
  46  *  The Initial Developer of the Original Code is: IBM Corporation
  47  *
  48  *  Copyright: 2008 by IBM Corporation
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  50  *  All Rights Reserved.
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  52  *  Contributor(s): _______________________________________
  53  *
  54  *
  55  ************************************************************************/
  56 /**
  57  * @file
  58  * For LWP filter architecture prototype
  59  *  Implemention of class LwpBackgroundStuff.
  60  */
  61
  62 #include "lwpbackgroundstuff.hxx"
  63 #include "lwppttntbl.hxx"
  64 #include "xfilter/xfbgimage.hxx"
  65
  66 #include <tools/stream.hxx>
  67 #include <vcl/dibtools.hxx>
  68 #include <vcl/bitmapaccess.hxx>
  69 #include <svx/xbitmap.hxx>
  70
  71 void LwpBackgroundStuff::Read(LwpObjectStream* pStrm)
  72 {
  73     m_nID = pStrm->QuickReaduInt16();
  74     m_aFillColor.Read(pStrm);
  75     m_aPatternColor.Read(pStrm);
  76     pStrm->SkipExtra();
  77 }
  78
  79 void LwpBackgroundStuff::GetPattern(sal_uInt16 btPttnIndex, sal_uInt8* pPttnArray)
  80 {
  81     if (btPttnIndex > 71)
  82     {
  83         assert(false);
  84         return;
  85     }
  86     assert((2 < btPttnIndex) && (btPttnIndex < 72));
  87     const sal_uInt8* pTempArray = s_pLwpPatternTab[btPttnIndex];
  88     for(sal_uInt8 i = 0; i < 32; i++)
  89     {
  90         pPttnArray[i] = (i%4 == 0) ? pTempArray[7-i/4] : 0;
  91     }
  92 }
  93
  94 LwpColor* LwpBackgroundStuff::GetFillColor()
  95 {
  96     if (m_nID == BACK_PATTERN)
  97     {
  98         return &m_aPatternColor;
  99     }
 100
 101     return &m_aFillColor;
 102 }
 103
 104 XFBGImage* LwpBackgroundStuff::GetFillPattern()
 105 {
 106     // not pattern fill?
 107     if (!IsPatternFill())
 108     {
 109         return nullptr;
 110     }
 111
 112     // get pattern array from pattern table
 113     sal_uInt8 aPttnArray[32];
 114     GetPattern(m_nID, aPttnArray);
 115
 116     // create bitmap object from the pattern array
 117     Bitmap aBmp( Size(8, 8), 1 );
 118     BitmapWriteAccess* pWA = aBmp.AcquireWriteAccess();
 119     sal_uInt8* pBuf = pWA->GetBuffer();
 120     memcpy(pBuf, aPttnArray, 32);
 121     Bitmap::ReleaseAccess(pWA);
 122
 123     // create XOBitmap object from bitmap object
 124     XOBitmap aXOBitmap( aBmp );
 125     aXOBitmap.Bitmap2Array();
 126     aXOBitmap.SetBitmapType( XBitmapType::N8x8 );
 127
 128     // set back/fore-ground colors
 129     if (m_aFillColor.IsValidColor() && m_aPatternColor.IsValidColor())
 130     {
 131         Color aBackColor(static_cast<sal_uInt8>(m_aFillColor.GetRed()),
 132             static_cast<sal_uInt8>(m_aFillColor.GetGreen()),
 133             static_cast<sal_uInt8>(m_aFillColor.GetBlue()));
 134         Color aForeColor(static_cast<sal_uInt8>(m_aPatternColor.GetRed()),
 135             static_cast<sal_uInt8>(m_aPatternColor.GetGreen()),
 136             static_cast<sal_uInt8>(m_aPatternColor.GetBlue()));
 137
 138         if( aXOBitmap.GetBackgroundColor() == COL_BLACK )
 139         {
 140             aXOBitmap.SetPixelColor( aBackColor );
 141             aXOBitmap.SetBackgroundColor( aForeColor );
 142         }
 143         else
 144         {
 145             aXOBitmap.SetPixelColor( aForeColor );
 146             aXOBitmap.SetBackgroundColor( aBackColor );
 147         }
 148     }
 149
 150     // transfer image data from XOBitmap->SvStream->BYTE-Array
 151     SvMemoryStream aPicMemStream;
 152     aXOBitmap.Array2Bitmap();
 153     WriteDIB(aXOBitmap.GetBitmap(), aPicMemStream, true, true);
 154     sal_uInt32 nSize = aPicMemStream.GetEndOfData();
 155     sal_uInt8* pImageBuff = new sal_uInt8 [nSize];
 156     memcpy(pImageBuff, aPicMemStream.GetData(), nSize);
 157
 158     // create XFBGImage object.
 159     XFBGImage* pXFBGImage = new XFBGImage();
 160     pXFBGImage->SetImageData(pImageBuff, nSize);
 161
 162     delete [] pImageBuff;
 163     pImageBuff = nullptr;
 164
 165     pXFBGImage->SetRepeate();
 166
 167     return pXFBGImage;
 168 }
 169
 170 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */