src/plugins/litehtml_viewer/litehtml/css_length.cpp

   1 #include "html.h"
   2 #include "css_length.h"
   3
   4 void litehtml::css_length::fromString( const string& str, const string& predefs, int defValue )
   5 {
   6         // TODO: Make support for calc
   7         if(str.substr(0, 4) == "calc")
   8         {
   9                 m_is_predefined = true;
  10                 m_predef                = defValue;
  11                 return;
  12         }
  13
  14         int predef = value_index(str, predefs, -1);
  15         if(predef >= 0)
  16         {
  17                 m_is_predefined = true;
  18                 m_predef                = predef;
  19         } else
  20         {
  21                 m_is_predefined = false;
  22
  23                 string num;
  24                 string un;
  25                 bool is_unit = false;
  26                 for(char chr : str)
  27                 {
  28                         if(!is_unit)
  29                         {
  30                                 if(t_isdigit(chr) || chr == '.' || chr == '+' || chr == '-')
  31                                 {
  32                                         num += chr;
  33                                 } else
  34                                 {
  35                                         is_unit = true;
  36                                 }
  37                         }
  38                         if(is_unit)
  39                         {
  40                                 un += chr;
  41                         }
  42                 }
  43                 if(!num.empty())
  44                 {
  45                         m_value = t_strtof(num);
  46                         m_units = (css_units) value_index(un, css_units_strings, css_units_none);
  47                 } else
  48                 {
  49                         // not a number so it is predefined
  50                         m_is_predefined = true;
  51                         m_predef = defValue;
  52                 }
  53         }
  54 }
  55
  56 litehtml::css_length litehtml::css_length::from_string(const string& str, const string& predefs, int defValue)
  57 {
  58         css_length len;
  59         len.fromString(str, predefs, defValue);
  60         return len;
  61 }
  62
  63 litehtml::string litehtml::css_length::to_string() const
  64 {
  65     if(m_is_predefined)
  66     {
  67         return "def(" + std::to_string(m_predef) + ")";
  68     }
  69     return std::to_string(m_value) + "{" + index_value(m_units, css_units_strings) + "}";
  70 }
  71
  72 litehtml::css_length litehtml::css_length::predef_value(int val)
  73 {
  74         css_length len;
  75         len.predef(val);
  76         return len;
  77 }