sdext/source/pdfimport/misc/pdfihelper.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
  21 #include <pdfihelper.hxx>
  22
  23 #include <rtl/ustrbuf.hxx>
  24 #include <basegfx/numeric/ftools.hxx>
  25 #include <rtl/math.hxx>
  26
  27 #include <math.h>
  28
  29 using namespace pdfi;
  30 using namespace com::sun::star;
  31
  32 double pdfi::GetAverageTransformationScale(const basegfx::B2DHomMatrix& matrix)
  33 {
  34     double rotate, shearX;
  35     basegfx::B2DTuple scale, translation;
  36     matrix.decompose(scale, translation, rotate, shearX);
  37     return (fabs(scale.getX()) + fabs(scale.getY())) / 2.0;
  38 }
  39
  40 void pdfi::FillDashStyleProps(PropertyMap& props, const std::vector<double>& dashArray, double scale)
  41 {
  42     size_t pairCount = dashArray.size() / 2;
  43
  44     double distance = 0.0;
  45     for (size_t i = 0; i < pairCount; i++)
  46         distance += dashArray[i * 2 + 1];
  47     distance /= pairCount;
  48
  49     props[u"draw:style"_ustr] = "rect";
  50     props[u"draw:distance"_ustr] = convertPixelToUnitString(distance * scale);
  51
  52     int dotStage = 0;
  53     int dotCounts[3] = {0, 0, 0};
  54     double dotLengths[3] = {0.0, 0.0, 0.0};
  55
  56     for (size_t i = 0; i < pairCount; i++)
  57     {
  58         if (!rtl::math::approxEqual(dotLengths[dotStage], dashArray[i * 2]))
  59         {
  60             dotStage++;
  61             if (dotStage == 3)
  62                 break;
  63
  64             dotCounts[dotStage] = 1;
  65             dotLengths[dotStage] = dashArray[i * 2];
  66         }
  67         else
  68         {
  69             dotCounts[dotStage]++;
  70         }
  71     }
  72
  73     for (int i = 1; i < 3; i++)
  74     {
  75         if (dotCounts[i] == 0)
  76             continue;
  77         props["draw:dots" + OUString::number(i)] = OUString::number(dotCounts[i]);
  78         props["draw:dots" + OUString::number(i) + "-length"] =
  79             convertPixelToUnitString(dotLengths[i] * scale);
  80     }
  81 }
  82
  83 OUString pdfi::getColorString( const rendering::ARGBColor& rCol )
  84 {
  85     OUStringBuffer aBuf( 7 );
  86     const sal_uInt8 nRed  ( sal::static_int_cast<sal_Int8>( basegfx::fround( rCol.Red * 255.0 ) ) );
  87     const sal_uInt8 nGreen( sal::static_int_cast<sal_Int8>( basegfx::fround( rCol.Green * 255.0 ) ) );
  88     const sal_uInt8 nBlue ( sal::static_int_cast<sal_Int8>( basegfx::fround( rCol.Blue * 255.0 ) ) );
  89     aBuf.append( '#' );
  90     if( nRed < 16 )
  91         aBuf.append( '0' );
  92     aBuf.append( sal_Int32(nRed), 16 );
  93     if( nGreen < 16 )
  94         aBuf.append( '0' );
  95     aBuf.append( sal_Int32(nGreen), 16 );
  96     if( nBlue < 16 )
  97         aBuf.append( '0' );
  98     aBuf.append( sal_Int32(nBlue), 16 );
  99
 100     return aBuf.makeStringAndClear();
 101 }
 102
 103 OUString pdfi::getPercentString(double value)
 104 {
 105     return OUString::number(value) + "%";
 106 }
 107
 108 OUString pdfi::unitMMString( double fMM )
 109 {
 110     return OUString::number(rtl_math_round( fMM, 2, rtl_math_RoundingMode_Floor )) + "mm";
 111 }
 112
 113 OUString pdfi::convertPixelToUnitString( double fPix )
 114 {
 115     return OUString::number( rtl_math_round( convPx2mm( fPix ), 2, rtl_math_RoundingMode_Floor ) ) + "mm";
 116 }
 117
 118
 119 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */