src/common/headerctrlcmn.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/headerctrlcmn.cpp
   3 // Purpose:     implementation of wxHeaderCtrlBase
   4 // Author:      Vadim Zeitlin
   5 // Created:     2008-12-02
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 // for compilers that support precompilation, includes "wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #ifndef WX_PRECOMP
  27 #endif // WX_PRECOMP
  28
  29 #include "wx/headerctrl.h"
  30
  31 // ----------------------------------------------------------------------------
  32 // constants
  33 // ----------------------------------------------------------------------------
  34
  35 namespace
  36 {
  37
  38 const unsigned int wxNO_COLUMN = static_cast<unsigned>(-1);
  39
  40 } // anonymous namespace
  41
  42 // ============================================================================
  43 // wxHeaderCtrlBase implementation
  44 // ============================================================================
  45
  46 extern WXDLLIMPEXP_DATA_CORE(const char) wxHeaderCtrlNameStr[] = "wxHeaderCtrl";
  47
  48 void wxHeaderCtrlBase::ScrollWindow(int dx,
  49                                     int WXUNUSED_UNLESS_DEBUG(dy),
  50                                     const wxRect * WXUNUSED_UNLESS_DEBUG(rect))
  51
  52 {
  53     // this doesn't make sense at all
  54     wxASSERT_MSG( !dy, "header window can't be scrolled vertically" );
  55
  56     // this would actually be nice to support for "frozen" headers but it isn't
  57     // supported currently
  58     wxASSERT_MSG( !rect, "header window can't be scrolled partially" );
  59
  60     DoScrollHorz(dx);
  61 }
  62
  63 // ============================================================================
  64 // wxHeaderCtrlSimple implementation
  65 // ============================================================================
  66
  67 void wxHeaderCtrlSimple::Init()
  68 {
  69     m_sortKey = wxNO_COLUMN;
  70 }
  71
  72 wxHeaderColumnBase& wxHeaderCtrlSimple::GetColumn(unsigned int idx)
  73 {
  74     return m_cols[idx];
  75 }
  76
  77 void wxHeaderCtrlSimple::DoInsert(const wxHeaderColumnSimple& col, unsigned int idx)
  78 {
  79     m_cols.insert(m_cols.begin() + idx, col);
  80
  81     UpdateColumnCount();
  82 }
  83
  84 void wxHeaderCtrlSimple::DoDelete(unsigned int idx)
  85 {
  86     m_cols.erase(m_cols.begin() + idx);
  87     if ( idx == m_sortKey )
  88         m_sortKey = wxNO_COLUMN;
  89
  90     UpdateColumnCount();
  91 }
  92
  93 void wxHeaderCtrlSimple::DeleteAllColumns()
  94 {
  95     m_cols.clear();
  96     m_sortKey = wxNO_COLUMN;
  97
  98     UpdateColumnCount();
  99 }
 100
 101
 102 void wxHeaderCtrlSimple::DoShowColumn(unsigned int idx, bool show)
 103 {
 104     if ( show != m_cols[idx].IsShown() )
 105     {
 106         m_cols[idx].SetHidden(!show);
 107
 108         UpdateColumn(idx);
 109     }
 110 }
 111
 112 void wxHeaderCtrlSimple::DoShowSortIndicator(unsigned int idx, bool ascending)
 113 {
 114     RemoveSortIndicator();
 115
 116     m_cols[idx].SetAsSortKey(ascending);
 117     m_sortKey = idx;
 118
 119     UpdateColumn(idx);
 120 }
 121
 122 void wxHeaderCtrlSimple::RemoveSortIndicator()
 123 {
 124     if ( m_sortKey != wxNO_COLUMN )
 125     {
 126         const unsigned sortOld = m_sortKey;
 127         m_sortKey = wxNO_COLUMN;
 128
 129         m_cols[sortOld].UnsetAsSortKey();
 130
 131         UpdateColumn(sortOld);
 132     }
 133 }
 134