Datum.cpp

   1 // Implemenation of CDatum, CDatumListViewItem methods
   2 // Copyright © 2009 The University of Chicago
   3 #include "Datum.h"
   4
   5 #include "VeryLong.h"
   6 #include "Typedefs.h"
   7
   8 CDatumListViewItem::CDatumListViewItem( Q3ListView *parent )
   9 : Q3ListViewItem( parent )
  10 {}
  11
  12
  13 CDatumListViewItem::CDatumListViewItem( Q3ListView *parent,
  14                                                                                 QString affix,
  15                                                                                 CDatum* pDatum )
  16 : Q3ListViewItem( parent, affix )
  17 {
  18         m_datum = pDatum;
  19 }
  20
  21
  22 CDatumListViewItem::CDatumListViewItem( Q3ListViewItem *parent,
  23                                                                                 QString affix,
  24                                                                                 CDatum* pDatum )
  25 : Q3ListViewItem( parent, affix )
  26 {
  27         m_datum = pDatum;
  28 }
  29
  30
  31 QString CDatumListViewItem::key( int column, bool ascending ) const
  32 {
  33         switch( column )
  34         {
  35         case 1:
  36                 return QString("%1").arg( m_datum->m_Count, 10 );
  37         case 2:
  38                 return QString("%1").arg( m_datum->m_Frequency, 10 );
  39         default:
  40                 return Q3ListViewItem::key( column, ascending );
  41         }
  42 }
  43
  44
  45 QString CDatumListViewItem::text( int column ) const
  46 {
  47         switch( column )
  48         {
  49         case 1:
  50                 return QString("%1").arg( m_datum->m_Count );
  51         case 2:
  52                 return QString("%1").arg( m_datum->m_Frequency );
  53         default:
  54                 return Q3ListViewItem::text( column );
  55         }
  56 }
  57
  58 CDatum::CDatum() : CParse()
  59 {
  60         m_Count = 0;
  61         m_Frequency = 0;
  62 }
  63
  64
  65 CDatum::CDatum( CParse& parse ) : CParse( parse )
  66 {
  67         m_Count = 1;
  68         m_Frequency = 0;
  69  }
  70
  71
  72 CDatum::CDatum ( QChar c ) : CParse ( c )
  73 {
  74         m_Count = 1;
  75         m_Frequency = 0;
  76 }
  77
  78 CDatum::CDatum( CSS& ssString ) : CParse( ssString )
  79 {
  80         m_Count = 1;
  81         m_Frequency = 0;
  82 }
  83
  84
  85 void CDatum::SetFrequency( float f ) { m_Frequency=f; }
  86
  87
  88 double CDatum::GetCount() { return m_Count; }
  89
  90
  91 //CString CDatum::GetKey() { return Key; }
  92
  93
  94 void CDatum::SetCount( double f ) { m_Count = f; }
  95
  96
  97 void CDatum::IncrementCount( CVeryLong& VL )
  98 {
  99         m_Count = m_Count + VL.ToDouble();
 100 }
 101
 102 void CDatum::IncrementCount()
 103 {
 104         m_Count++;
 105 }
 106
 107
 108 // this is normally found in MiniLexicon_deMarcken, which is temporarily not included.
 109 /*
 110 CDatum* CMiniLexicon::LookUp ( QString s )
 111 {
 112         if( m_DataMap.contains( s ) )
 113         {
 114                 StringToDatum::Iterator it = m_DataMap.find( s );
 115                 return &it.data();
 116         }
 117
 118         return NULL;
 119 }
 120 */
 121
 122
 123 /*   todo: put this back
 124 double CDatum::GetInformationContent( CMiniLexicon* lexicon )
 125 {
 126         double  info = -1 * log( m_Frequency ) / log( 2 ),
 127                         letterInfo;
 128         QChar   letter;
 129         CDatum* pLetter;
 130
 131         CSS key = GetKey();
 132
 133         for( int i = 0; i < key.GetLength(); i++ )
 134         {
 135                 letter = key[i];
 136                 pLetter = lexicon->LookUp( letter );
 137                 letterInfo = -1 * log( pLetter->m_Frequency ) / log(2);
 138
 139                 info -= letterInfo;
 140         }
 141
 142         return info * m_Count;
 143 }
 144 */