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Member "ansifilter-2.18/src/stylecolour.cpp" (30 Jan 2021, 4114 Bytes) of package /linux/privat/ansifilter-2.18.tar.bz2:


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    1 /***************************************************************************
    2                           stylecolour.cpp  -  description
    3                              -------------------
    4     begin                : Die Nov 5 2002
    5     copyright            : (C) 2002 by Andre Simon
    6     email                : a.simon@mailbox.org
    7  ***************************************************************************/
    8 
    9 /*
   10 This file is part of ANSIFilter.
   11 
   12 ANSIFilter is free software: you can redistribute it and/or modify
   13 it under the terms of the GNU General Public License as published by
   14 the Free Software Foundation, either version 3 of the License, or
   15 (at your option) any later version.
   16 
   17 ANSIFilter is distributed in the hope that it will be useful,
   18 but WITHOUT ANY WARRANTY; without even the implied warranty of
   19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
   20 GNU General Public License for more details.
   21 
   22 You should have received a copy of the GNU General Public License
   23 along with ANSIFilter.  If not, see <http://www.gnu.org/licenses/>.
   24 */
   25 
   26 #include "stylecolour.h"
   27 #include "stringtools.h"
   28 
   29 
   30 #include <iostream>
   31 #include <sstream>
   32 #include <cmath>
   33 
   34 using std::string;
   35 
   36 namespace ansifilter
   37 {
   38 
   39 StyleColour::StyleColour(const string & red, const string & green, const string & blue)
   40 {
   41     ostringstream rgbStream;
   42     rgbStream << red << " " << green << " " << blue;
   43     setRGB(rgbStream.str());
   44 }
   45 
   46 StyleColour::StyleColour()
   47 {
   48     rgb.iRed = rgb.iGreen = rgb.iBlue = 0;
   49 }
   50 
   51 StyleColour::StyleColour(const string & styleColourString)
   52 {
   53     setRGB(styleColourString);
   54 }
   55 
   56 void StyleColour::setRGB(const string & styleColourString)
   57 {
   58 
   59     if (styleColourString.empty()) return;
   60 
   61     istringstream valueStream(styleColourString.c_str());
   62     string r, g, b;
   63     char c='\0';
   64     valueStream >> c;
   65 
   66     if (c=='#') {
   67         string htmlNotation;
   68         valueStream >> htmlNotation;
   69         if (htmlNotation.size() < 6) return;
   70         r = htmlNotation.substr(0, 2);
   71         g = htmlNotation.substr(2, 2);
   72         b = htmlNotation.substr(4, 2);
   73     } else {
   74         valueStream.putback(c);
   75         valueStream >> r;
   76         valueStream >> g;
   77         valueStream >> b;
   78     }
   79 
   80     StringTools::str2num<int>(rgb.iRed,   r, std::hex);
   81     StringTools::str2num<int>(rgb.iGreen, g, std::hex);
   82     StringTools::str2num<int>(rgb.iBlue,  b, std::hex);
   83 }
   84 
   85 void StyleColour::setRed(const string & red)
   86 {
   87     StringTools::str2num<int>(rgb.iRed, red, std::hex);
   88 }
   89 
   90 void StyleColour::setGreen(const string & green)
   91 {
   92     StringTools::str2num<int>(rgb.iGreen, green, std::hex);
   93 }
   94 
   95 void StyleColour::setBlue(const string & blue)
   96 {
   97     StringTools::str2num<int>(rgb.iBlue, blue, std::hex);
   98 }
   99 
  100 const string StyleColour::getRed(OutputType type) const
  101 {
  102     switch (type) {
  103     case RTF:
  104         return int2str(rgb.iRed, std::dec);
  105     case LATEX:
  106         return float2str( (float) rgb.iRed / 255);
  107     case TEX:
  108         return float2str( 1 - (float) rgb.iRed / 255);
  109     default:
  110         return int2str(rgb.iRed, std::hex);
  111     }
  112 }
  113 
  114 const string StyleColour::getGreen(OutputType type) const
  115 {
  116     switch (type) {
  117     case RTF:
  118         return int2str(rgb.iGreen, std::dec);
  119     case LATEX:
  120         return float2str( (float) rgb.iGreen / 255);
  121     case TEX:
  122         return float2str( 1 - (float) rgb.iGreen / 255);
  123     default:
  124         return int2str(rgb.iGreen, std::hex);
  125     }
  126 }
  127 
  128 const string StyleColour::getBlue(OutputType type) const
  129 {
  130     switch (type) {
  131     case RTF:
  132         return int2str(rgb.iBlue, std::dec);
  133     case LATEX:
  134         return float2str( (float) rgb.iBlue / 255);
  135     case TEX:
  136         return float2str( 1 - (float) rgb.iBlue / 255);
  137     default:
  138         return int2str(rgb.iBlue, std::hex);
  139     }
  140 }
  141 
  142 
  143 string StyleColour::int2str(const int num, std::ios_base& (*f)(std::ios_base&)) const
  144 {
  145     std::ostringstream outStream;
  146     outStream.width(2);
  147     outStream.fill('0');
  148     outStream << f << num;
  149 
  150     return outStream.str();
  151 }
  152 
  153 string StyleColour::float2str(const double num) const
  154 {
  155     std::ostringstream outStream;
  156     outStream << ( floor ( num * 100 + .5 ) / 100);
  157 
  158     return outStream.str();
  159 }
  160 
  161 }
  162