lotuswordpro/source/filter/lwpbackgroundstuff.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*************************************************************************
   3  *
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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
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  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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  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
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  39  *  Software provided under this License is provided on an "AS IS" basis,
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  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  *  Implementation 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/BitmapTools.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)[8])
  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 < 8; i++)
  89     {
  90         pPttnArray[i] = pTempArray[7 - i];
  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 std::unique_ptr<XFBGImage> LwpBackgroundStuff::GetFillPattern()
 105 {
 106     // not pattern fill?
 107     if (!IsPatternFill())
 108     {
 109         return std::unique_ptr<XFBGImage>();
 110     }
 111
 112     // get pattern array from pattern table
 113     sal_uInt8 aPttnArray[8];
 114     GetPattern(m_nID, aPttnArray);
 115
 116     // create bitmap object from the pattern array
 117     BitmapEx aBmp = vcl::bitmap::CreateFromData(aPttnArray, 8, 8, 1, /*nBitsPerPixel*/ 1);
 118
 119     // create XOBitmap object from bitmap object
 120     XOBitmap aXOBitmap(aBmp);
 121     aXOBitmap.Bitmap2Array();
 122
 123     // set back/fore-ground colors
 124     if (m_aFillColor.IsValidColor() && m_aPatternColor.IsValidColor())
 125     {
 126         Color aBackColor(static_cast<sal_uInt8>(m_aFillColor.GetRed()),
 127                          static_cast<sal_uInt8>(m_aFillColor.GetGreen()),
 128                          static_cast<sal_uInt8>(m_aFillColor.GetBlue()));
 129         Color aForeColor(static_cast<sal_uInt8>(m_aPatternColor.GetRed()),
 130                          static_cast<sal_uInt8>(m_aPatternColor.GetGreen()),
 131                          static_cast<sal_uInt8>(m_aPatternColor.GetBlue()));
 132
 133         if (aXOBitmap.GetBackgroundColor() == COL_BLACK)
 134         {
 135             aXOBitmap.SetPixelColor(aBackColor);
 136             aXOBitmap.SetBackgroundColor(aForeColor);
 137         }
 138         else
 139         {
 140             aXOBitmap.SetPixelColor(aForeColor);
 141             aXOBitmap.SetBackgroundColor(aBackColor);
 142         }
 143     }
 144
 145     // transfer image data from XOBitmap->SvStream->BYTE-Array
 146     SvMemoryStream aPicMemStream;
 147     aXOBitmap.Array2Bitmap();
 148     WriteDIB(aXOBitmap.GetBitmap(), aPicMemStream);
 149     sal_uInt32 nSize = aPicMemStream.GetEndOfData();
 150     std::unique_ptr<sal_uInt8[]> pImageBuff(new sal_uInt8[nSize]);
 151     memcpy(pImageBuff.get(), aPicMemStream.GetData(), nSize);
 152
 153     // create XFBGImage object.
 154     std::unique_ptr<XFBGImage> xXFBGImage(new XFBGImage);
 155     xXFBGImage->SetImageData(pImageBuff.get(), nSize);
 156
 157     pImageBuff.reset();
 158
 159     xXFBGImage->SetRepeate();
 160
 161     return xXFBGImage;
 162 }
 163
 164 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */