source/time/timedelta.cpp

   1 /*
   2 This file is part of libmspcore
   3 Copyright © 2006  Mikko Rasa, Mikkosoft Productions
   4 Distributed under the LGPL
   5 */
   6 #include <sstream>
   7 #include <iomanip>
   8 #include "timedelta.h"
   9 #include "units.h"
  10
  11 using namespace std;
  12
  13 namespace {
  14
  15 using Msp::Time::RawTime;
  16
  17 void print_part(ostream &out, RawTime &value, RawTime unit, char sep, bool &first)
  18 {
  19         if(value<unit && first)
  20                 return;
  21
  22         if(!first)
  23                 out<<sep<<setw(2);
  24
  25         out<<value/unit;
  26         value%=unit;
  27         first=false;
  28 }
  29
  30 }
  31
  32 namespace Msp {
  33 namespace Time {
  34
  35 ostream &operator<<(ostream &out, const TimeDelta &td)
  36 {
  37         ostringstream ss;
  38         ss.fill('0');
  39
  40         RawTime value=td.raw();
  41
  42         if(value<0)
  43         {
  44                 ss<<'-';
  45                 value=-value;
  46         }
  47
  48         if(value==0)
  49                 ss<<'0';
  50         else if(value<1000)
  51                 ss<<value<<"µs";
  52         else if(value<1000000)
  53         {
  54                 ss<<value/1000;
  55                 value%=1000;
  56                 if(value)
  57                         ss<<'.'<<setw(3)<<value;
  58                 ss<<"ms";
  59         }
  60         else
  61         {
  62                 bool first=true;
  63                 print_part(ss, value, 86400000000LL,  0,  first);
  64                 print_part(ss, value, 3600000000LL,  '-', first);
  65                 print_part(ss, value, 60000000LL,    ':', first);
  66                 print_part(ss, value, 1000000LL,     ':', first);
  67
  68                 if(value)
  69                 {
  70                         ss<<'.';
  71                         if(value%1000)
  72                                 ss<<setw(6)<<value;
  73                         else
  74                                 ss<<setw(3)<<value/1000;
  75                 }
  76                 ss<<"s";
  77         }
  78
  79         out<<ss.str();
  80
  81         return out;
  82 }
  83
  84 } // namespace Time
  85 } // namespace Msp