src/common/radiocmn.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/radiocmn.cpp
   3 // Purpose:     wxRadioBox methods common to all ports
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     03.06.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // License:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_RADIOBOX
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/radiobox.h"
  31 #endif //WX_PRECOMP
  32
  33 // ============================================================================
  34 // implementation
  35 // ============================================================================
  36
  37 int wxRadioBoxBase::FindString(const wxString& s) const
  38 {
  39     int count = GetCount();
  40     for ( int n = 0; n < count; n++ )
  41     {
  42         if ( GetString(n) == s )
  43             return n;
  44     }
  45
  46     return wxNOT_FOUND;
  47 }
  48
  49 int wxRadioBoxBase::GetNextItem(int item, wxDirection dir, long style) const
  50 {
  51     int count = GetCount(),
  52         numCols = GetColumnCount(),
  53         numRows = GetRowCount();
  54
  55     bool horz = (style & wxRA_SPECIFY_COLS) != 0;
  56
  57     switch ( dir )
  58     {
  59         case wxUP:
  60             if ( horz )
  61             {
  62                 item -= numCols;
  63             }
  64             else // vertical layout
  65             {
  66                 if ( !item-- )
  67                     item = count - 1;
  68             }
  69             break;
  70
  71         case wxLEFT:
  72             if ( horz )
  73             {
  74                 if ( !item-- )
  75                     item = count - 1;
  76             }
  77             else // vertical layout
  78             {
  79                 item -= numRows;
  80             }
  81             break;
  82
  83         case wxDOWN:
  84             if ( horz )
  85             {
  86                 item += numCols;
  87             }
  88             else // vertical layout
  89             {
  90                 if ( ++item == count )
  91                     item = 0;
  92             }
  93             break;
  94
  95         case wxRIGHT:
  96             if ( horz )
  97             {
  98                 if ( ++item == count )
  99                     item = 0;
 100             }
 101             else // vertical layout
 102             {
 103                 item += numRows;
 104             }
 105             break;
 106
 107         default:
 108             wxFAIL_MSG( _T("unexpected wxDirection value") );
 109             return wxNOT_FOUND;
 110     }
 111
 112     // ensure that the item is in range [0..count)
 113     if ( item < 0 )
 114     {
 115         // first map the item to the one in the same column but in the last row
 116         item += count;
 117
 118         // now there are 2 cases: either it is the first item of the last row
 119         // in which case we need to wrap again and get to the last item or we
 120         // can just go to the previous item
 121         if ( item % (horz ? numCols : numRows) )
 122             item--;
 123         else
 124             item = count - 1;
 125     }
 126     else if ( item >= count )
 127     {
 128         // same logic as above
 129         item -= count;
 130
 131         // ... except that we need to check if this is not the last item, not
 132         // the first one
 133         if ( (item + 1) % (horz ? numCols : numRows) )
 134             item++;
 135         else
 136             item = 0;
 137     }
 138
 139     wxASSERT_MSG( item < count && item >= 0,
 140                   _T("logic error in wxRadioBox::GetNextItem()") );
 141
 142     return item;
 143 }
 144
 145 #if WXWIN_COMPATIBILITY_2_4
 146
 147 // these functions are deprecated and don't do anything
 148 int wxRadioBoxBase::GetNumberOfRowsOrCols() const
 149 {
 150     return 1;
 151 }
 152
 153 void wxRadioBoxBase::SetNumberOfRowsOrCols(int WXUNUSED(n))
 154 {
 155 }
 156
 157 #endif // WXWIN_COMPATIBILITY_2_4
 158
 159 #if WXWIN_COMPATIBILITY_2_2
 160
 161 int wxRadioBoxBase::Number() const
 162 {
 163     return GetCount();
 164 }
 165
 166 wxString wxRadioBoxBase::GetLabel(int n) const
 167 {
 168     return GetString(n);
 169 }
 170
 171 void wxRadioBoxBase::SetLabel(int n, const wxString& label)
 172 {
 173     SetString(n, label);
 174 }
 175
 176 #endif // WXWIN_COMPATIBILITY_2_2
 177
 178 #endif // wxUSE_RADIOBOX
 179