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
  26 #include <math.h>
  27
  28 using namespace pdfi;
  29 using namespace com::sun::star;
  30
  31 double pdfi::GetAverageTransformationScale(const basegfx::B2DHomMatrix& matrix)
  32 {
  33     double rotate, shearX;
  34     basegfx::B2DTuple scale, translation;
  35     matrix.decompose(scale, translation, rotate, shearX);
  36     return (fabs(scale.getX()) + fabs(scale.getY())) / 2.0;
  37 }
  38
  39 void pdfi::FillDashStyleProps(PropertyMap& props, const std::vector<double>& dashArray, double scale)
  40 {
  41     size_t pairCount = dashArray.size() / 2;
  42
  43     double distance = 0.0;
  44     for (size_t i = 0; i < pairCount; i++)
  45         distance += dashArray[i * 2 + 1];
  46     distance /= pairCount;
  47
  48     props["draw:style"] = "rect";
  49     props["draw:distance"] = convertPixelToUnitString(distance * scale);
  50
  51     int dotStage = 0;
  52     int dotCounts[3] = {0, 0, 0};
  53     double dotLengths[3] = {0.0, 0.0, 0.0};
  54
  55     for (size_t i = 0; i < pairCount; i++)
  56     {
  57         if (!rtl::math::approxEqual(dotLengths[dotStage], dashArray[i * 2]))
  58         {
  59             dotStage++;
  60             if (dotStage == 3)
  61                 break;
  62
  63             dotCounts[dotStage] = 1;
  64             dotLengths[dotStage] = dashArray[i * 2];
  65         }
  66         else
  67         {
  68             dotCounts[dotStage]++;
  69         }
  70     }
  71
  72     for (int i = 1; i < 3; i++)
  73     {
  74         if (dotCounts[i] == 0)
  75             continue;
  76         props["draw:dots" + OUString::number(i)] = OUString::number(dotCounts[i]);
  77         props["draw:dots" + OUString::number(i) + "-length"] =
  78             convertPixelToUnitString(dotLengths[i] * scale);
  79     }
  80 }
  81
  82 OUString pdfi::getColorString( const rendering::ARGBColor& rCol )
  83 {
  84     OUStringBuffer aBuf( 7 );
  85     const sal_uInt8 nRed  ( sal::static_int_cast<sal_Int8>( basegfx::fround( rCol.Red * 255.0 ) ) );
  86     const sal_uInt8 nGreen( sal::static_int_cast<sal_Int8>( basegfx::fround( rCol.Green * 255.0 ) ) );
  87     const sal_uInt8 nBlue ( sal::static_int_cast<sal_Int8>( basegfx::fround( rCol.Blue * 255.0 ) ) );
  88     aBuf.append( '#' );
  89     if( nRed < 16 )
  90         aBuf.append( '0' );
  91     aBuf.append( sal_Int32(nRed), 16 );
  92     if( nGreen < 16 )
  93         aBuf.append( '0' );
  94     aBuf.append( sal_Int32(nGreen), 16 );
  95     if( nBlue < 16 )
  96         aBuf.append( '0' );
  97     aBuf.append( sal_Int32(nBlue), 16 );
  98
  99     return aBuf.makeStringAndClear();
 100 }
 101
 102 OUString pdfi::getPercentString(double value)
 103 {
 104     OUStringBuffer buf(32);
 105     buf.append(value);
 106     buf.append("%");
 107     return buf.makeStringAndClear();
 108 }
 109
 110 OUString pdfi::unitMMString( double fMM )
 111 {
 112     OUStringBuffer aBuf( 32 );
 113     aBuf.append( rtl_math_round( fMM, 2, rtl_math_RoundingMode_Floor ) );
 114     aBuf.append( "mm" );
 115
 116     return aBuf.makeStringAndClear();
 117 }
 118
 119 OUString pdfi::convertPixelToUnitString( double fPix )
 120 {
 121     OUStringBuffer aBuf( 32 );
 122     aBuf.append( rtl_math_round( convPx2mm( fPix ), 2, rtl_math_RoundingMode_Floor ) );
 123     aBuf.append( "mm" );
 124
 125     return aBuf.makeStringAndClear();
 126 }
 127
 128
 129 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */