vcl/source/font/EmphasisMark.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
   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
  10 #include <sal/config.h>
  11
  12 #include <font/EmphasisMark.hxx>
  13
  14 namespace vcl::font
  15 {
  16 EmphasisMark::EmphasisMark(FontEmphasisMark eEmphasis, tools::Long nHeight, sal_Int32 nDPIY)
  17 {
  18     static const PolyFlags aAccentPolyFlags[24] =
  19     {
  20         PolyFlags::Normal, PolyFlags::Control, PolyFlags::Control,
  21         PolyFlags::Normal, PolyFlags::Control, PolyFlags::Control,
  22         PolyFlags::Normal, PolyFlags::Control, PolyFlags::Control,
  23         PolyFlags::Normal, PolyFlags::Control, PolyFlags::Control,
  24         PolyFlags::Normal, PolyFlags::Control, PolyFlags::Control,
  25         PolyFlags::Normal, PolyFlags::Control, PolyFlags::Control,
  26         PolyFlags::Normal, PolyFlags::Normal,  PolyFlags::Control,
  27         PolyFlags::Normal, PolyFlags::Control, PolyFlags::Control
  28     };
  29
  30     static const Point aAccentPos[24] =
  31     {
  32         {  78,    0 },
  33         { 348,   79 },
  34         { 599,  235 },
  35         { 843,  469 },
  36         { 938,  574 },
  37         { 990,  669 },
  38         { 990,  773 },
  39         { 990,  843 },
  40         { 964,  895 },
  41         { 921,  947 },
  42         { 886,  982 },
  43         { 860,  999 },
  44         { 825,  999 },
  45         { 764,  999 },
  46         { 721,  964 },
  47         { 686,  895 },
  48         { 625,  791 },
  49         { 556,  660 },
  50         { 469,  504 },
  51         { 400,  400 },
  52         { 261,  252 },
  53         {  61,   61 },
  54         {   0,   27 },
  55         {   9,    0 }
  56     };
  57
  58     mnWidth      = 0;
  59     mnYOff       = 0;
  60     mbIsPolyLine   = false;
  61
  62     if ( !nHeight )
  63         return;
  64
  65     FontEmphasisMark    nEmphasisStyle = eEmphasis & FontEmphasisMark::Style;
  66     tools::Long                nDotSize = 0;
  67     switch ( nEmphasisStyle )
  68     {
  69         case FontEmphasisMark::Dot:
  70             // Dot has 55% of the height
  71             nDotSize = (nHeight*550)/1000;
  72             if ( !nDotSize )
  73                 nDotSize = 1;
  74             if ( nDotSize <= 2 )
  75                 maRect1 = tools::Rectangle( Point(), Size( nDotSize, nDotSize ) );
  76             else
  77             {
  78                 tools::Long nRad = nDotSize/2;
  79                 tools::Polygon aPoly( Point( nRad, nRad ), nRad, nRad );
  80                 maPolyPoly.Insert( aPoly );
  81             }
  82             mnYOff = ((nHeight*250)/1000)/2; // Center to the another EmphasisMarks
  83             mnWidth = nDotSize;
  84             break;
  85
  86         case FontEmphasisMark::Circle:
  87             // Dot has 80% of the height
  88             nDotSize = (nHeight*800)/1000;
  89             if ( !nDotSize )
  90                 nDotSize = 1;
  91             if ( nDotSize <= 2 )
  92                 maRect1 = tools::Rectangle( Point(), Size( nDotSize, nDotSize ) );
  93             else
  94             {
  95                 tools::Long nRad = nDotSize/2;
  96                 tools::Polygon aPoly( Point( nRad, nRad ), nRad, nRad );
  97                 maPolyPoly.Insert( aPoly );
  98                 // Border mnWidth is 15%
  99                 tools::Long nBorder = (nDotSize*150)/1000;
 100                 if ( nBorder <= 1 )
 101                     mbIsPolyLine = true;
 102                 else
 103                 {
 104                     tools::Polygon aPoly2( Point( nRad, nRad ),
 105                                            nRad-nBorder, nRad-nBorder );
 106                     maPolyPoly.Insert( aPoly2 );
 107                 }
 108             }
 109             mnWidth = nDotSize;
 110             break;
 111
 112         case FontEmphasisMark::Disc:
 113             // Dot has 80% of the height
 114             nDotSize = (nHeight*800)/1000;
 115             if ( !nDotSize )
 116                 nDotSize = 1;
 117             if ( nDotSize <= 2 )
 118                 maRect1 = tools::Rectangle( Point(), Size( nDotSize, nDotSize ) );
 119             else
 120             {
 121                 tools::Long nRad = nDotSize/2;
 122                 tools::Polygon aPoly( Point( nRad, nRad ), nRad, nRad );
 123                 maPolyPoly.Insert( aPoly );
 124             }
 125             mnWidth = nDotSize;
 126             break;
 127
 128         case FontEmphasisMark::Accent:
 129             // Dot has 80% of the height
 130             nDotSize = (nHeight*800)/1000;
 131             if ( !nDotSize )
 132                 nDotSize = 1;
 133             if ( nDotSize <= 2 )
 134             {
 135                 if ( nDotSize == 1 )
 136                 {
 137                     maRect1 = tools::Rectangle( Point(), Size( nDotSize, nDotSize ) );
 138                     mnWidth = nDotSize;
 139                 }
 140                 else
 141                 {
 142                     maRect1 = tools::Rectangle( Point(), Size( 1, 1 ) );
 143                     maRect2 = tools::Rectangle( Point( 1, 1 ), Size( 1, 1 ) );
 144                 }
 145             }
 146             else
 147             {
 148                 tools::Polygon aPoly( SAL_N_ELEMENTS(aAccentPos), aAccentPos,
 149                                       aAccentPolyFlags );
 150                 double dScale = static_cast<double>(nDotSize)/1000.0;
 151                 aPoly.Scale( dScale, dScale );
 152                 tools::Polygon aTemp;
 153                 aPoly.AdaptiveSubdivide( aTemp );
 154                 tools::Rectangle aBoundRect = aTemp.GetBoundRect();
 155                 mnWidth = aBoundRect.GetWidth();
 156                 nDotSize = aBoundRect.GetHeight();
 157                 maPolyPoly.Insert( aTemp );
 158             }
 159             break;
 160         default: break;
 161     }
 162
 163     // calculate position
 164     tools::Long nOffY = 1+(nDPIY/300); // one visible pixel space
 165     tools::Long nSpaceY = nHeight-nDotSize;
 166     if ( nSpaceY >= nOffY*2 )
 167         mnYOff += nOffY;
 168
 169     if ( !(eEmphasis & FontEmphasisMark::PosBelow) )
 170         mnYOff += nDotSize;
 171 }
 172 }
 173
 174 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */