src/motif/checklst.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        checklst.cpp
   3 // Purpose:     implementation of wxCheckListBox class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // headers & declarations
  14 // ============================================================================
  15
  16 #ifdef __GNUG__
  17 #pragma implementation "checklst.h"
  18 #endif
  19
  20 #include "wx/defs.h"
  21
  22 #include "wx/checklst.h"
  23
  24 // ============================================================================
  25 // implementation
  26 // ============================================================================
  27
  28 IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxListBox)
  29
  30 // ----------------------------------------------------------------------------
  31 // implementation of wxCheckListBox class
  32 // ----------------------------------------------------------------------------
  33
  34 // define event table
  35 // ------------------
  36 BEGIN_EVENT_TABLE(wxCheckListBox, wxListBox)
  37 END_EVENT_TABLE()
  38
  39 // control creation
  40 // ----------------
  41
  42 static const wxString prefixChecked = "[x] ";
  43 static const wxString prefixUnchecked = "[ ] ";
  44 static const char checkChar = 'x', uncheckChar = ' ';
  45
  46 static inline const wxString& Prefix(bool checked)
  47     { return checked ? prefixChecked : prefixUnchecked; }
  48 static inline bool IsChecked(const wxString& s)
  49     { wxASSERT(s.length() >=4); return s[1] == checkChar; }
  50
  51 static void CopyStringsAddingPrefix(const wxArrayString& orig,
  52                                     wxArrayString& copy)
  53 {
  54     copy.Clear();
  55
  56     for(size_t i = 0; i < orig.GetCount(); ++i )
  57         copy.Add( Prefix(FALSE) + orig[i] );
  58 }
  59
  60 // def ctor: use Create() to really create the control
  61 wxCheckListBox::wxCheckListBox() : wxCheckListBoxBase()
  62 {
  63 }
  64
  65 // ctor which creates the associated control
  66 wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
  67                                const wxPoint& pos, const wxSize& size,
  68                                int nStrings, const wxString choices[],
  69                                long style, const wxValidator& val,
  70                                const wxString& name)
  71                                : wxCheckListBoxBase()
  72 {
  73     Create(parent, id, pos, size, nStrings, choices,
  74            style, val, name);
  75 }
  76
  77 bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
  78                             const wxPoint& pos,
  79                             const wxSize& size,
  80                             int n, const wxString choices[],
  81                             long style,
  82                             const wxValidator& validator,
  83                             const wxString& name)
  84 {
  85     // wxListBox::Create calls set, which adds the prefixes
  86     bool retVal = wxListBox::Create(parent, id, pos, size, n, choices,
  87                                     style, validator, name);
  88     return retVal;
  89 }
  90
  91 // check items
  92 // -----------
  93
  94 bool wxCheckListBox::IsChecked(size_t uiIndex) const
  95 {
  96     return ::IsChecked(wxListBox::GetString(uiIndex));
  97 }
  98
  99 void wxCheckListBox::Check(size_t uiIndex, bool bCheck)
 100 {
 101     wxString label = wxListBox::GetString(uiIndex);
 102     if(::IsChecked(label) == bCheck) return;
 103     label[1u] = bCheck ? checkChar : uncheckChar;
 104     wxListBox::SetString(uiIndex, label);
 105 }
 106
 107 void wxCheckListBox::DoToggleItem( int n, int x )
 108 {
 109     if( x < 23 )
 110     {
 111         wxString label = wxListBox::GetString(n);
 112         label[1u] = (!::IsChecked(label)) ? checkChar : uncheckChar;
 113         wxListBox::SetString(n, label);
 114
 115         wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, GetId());
 116         if( HasClientObjectData() )
 117             event.SetClientObject( GetClientObject(n) );
 118         else if( HasClientUntypedData() )
 119             event.SetClientData( GetClientData(n) );
 120         event.m_commandInt = n;
 121         event.m_extraLong = TRUE;
 122         event.SetEventObject(this);
 123         event.SetString( GetString( n ) );
 124
 125         GetEventHandler()->ProcessEvent(event);
 126     }
 127 }
 128
 129 int wxCheckListBox::DoAppend(const wxString& item)
 130 {
 131     return wxListBox::DoAppend( Prefix(FALSE) + item );
 132 }
 133
 134 int wxCheckListBox::FindString(const wxString& s) const
 135 {
 136     int n1 = wxListBox::FindString(Prefix(FALSE) + s);
 137     int n2 = wxListBox::FindString(Prefix(TRUE) + s);
 138     int min = wxMin(n1, n2), max = wxMax(n1, n2);
 139
 140     // why this works:
 141     // n1 == -1, n2 == -1 => return -1 OK
 142     // n1 != -1 || n2 != -1 => min == -1 => return the other one
 143     // both != -1 => return the first one.
 144     if( min == -1 ) return max;
 145     return min;
 146 }
 147
 148 void wxCheckListBox::SetString(int n, const wxString& s)
 149 {
 150     wxListBox::SetString( n, Prefix(IsChecked(n)) + s );
 151 }
 152
 153 wxString wxCheckListBox::GetString(int n) const
 154 {
 155     return wxListBox::GetString(n).substr(4);
 156 }
 157
 158 void wxCheckListBox::DoInsertItems(const wxArrayString& items, int pos)
 159 {
 160     wxArrayString copy;
 161     CopyStringsAddingPrefix(items, copy);
 162     wxListBox::DoInsertItems(copy, pos);
 163 }
 164
 165 void wxCheckListBox::DoSetItems(const wxArrayString& items, void **clientData)
 166 {
 167     wxArrayString copy;
 168     CopyStringsAddingPrefix(items, copy);
 169     wxListBox::DoSetItems(copy, clientData);
 170 }