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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  17 #pragma implementation "checklst.h"
  18 #endif
  19
  20 #include "wx/defs.h"
  21
  22 #include "wx/checklst.h"
  23 #include "wx/arrstr.h"
  24
  25 // ============================================================================
  26 // implementation of wxCheckListBoxBase
  27 // ============================================================================
  28
  29 wxCheckListBoxBase::wxCheckListBoxBase()
  30 {
  31 }
  32
  33 // ============================================================================
  34 // implementation of wxCheckListBox
  35 // ============================================================================
  36
  37 IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxListBox)
  38
  39 // ----------------------------------------------------------------------------
  40 // implementation of wxCheckListBox class
  41 // ----------------------------------------------------------------------------
  42
  43 // define event table
  44 // ------------------
  45 BEGIN_EVENT_TABLE(wxCheckListBox, wxListBox)
  46 END_EVENT_TABLE()
  47
  48 // control creation
  49 // ----------------
  50
  51 static const wxString prefixChecked = "[x] ";
  52 static const wxString prefixUnchecked = "[ ] ";
  53 static const char checkChar = 'x', uncheckChar = ' ';
  54
  55 static inline const wxString& Prefix(bool checked)
  56     { return checked ? prefixChecked : prefixUnchecked; }
  57 static inline bool IsChecked(const wxString& s)
  58     { wxASSERT(s.length() >=4); return s[1] == checkChar; }
  59
  60 static void CopyStringsAddingPrefix(const wxArrayString& orig,
  61                                     wxArrayString& copy)
  62 {
  63     copy.Clear();
  64
  65     for(size_t i = 0; i < orig.GetCount(); ++i )
  66         copy.Add( Prefix(FALSE) + orig[i] );
  67 }
  68
  69 // def ctor: use Create() to really create the control
  70 wxCheckListBox::wxCheckListBox() : wxCheckListBoxBase()
  71 {
  72 }
  73
  74 // ctor which creates the associated control
  75 wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
  76                                const wxPoint& pos, const wxSize& size,
  77                                int nStrings, const wxString choices[],
  78                                long style, const wxValidator& val,
  79                                const wxString& name)
  80                                : wxCheckListBoxBase()
  81 {
  82     Create(parent, id, pos, size, nStrings, choices,
  83            style, val, name);
  84 }
  85
  86 bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
  87                             const wxPoint& pos,
  88                             const wxSize& size,
  89                             int n, const wxString choices[],
  90                             long style,
  91                             const wxValidator& validator,
  92                             const wxString& name)
  93 {
  94     // wxListBox::Create calls set, which adds the prefixes
  95     bool retVal = wxListBox::Create(parent, id, pos, size, n, choices,
  96                                     style, validator, name);
  97     return retVal;
  98 }
  99
 100 // check items
 101 // -----------
 102
 103 bool wxCheckListBox::IsChecked(size_t uiIndex) const
 104 {
 105     return ::IsChecked(wxListBox::GetString(uiIndex));
 106 }
 107
 108 void wxCheckListBox::Check(size_t uiIndex, bool bCheck)
 109 {
 110     wxString label = wxListBox::GetString(uiIndex);
 111     if(::IsChecked(label) == bCheck) return;
 112     label[1u] = bCheck ? checkChar : uncheckChar;
 113     wxListBox::SetString(uiIndex, label);
 114 }
 115
 116 void wxCheckListBox::DoToggleItem( int n, int x )
 117 {
 118     if( x < 23 )
 119     {
 120         wxString label = wxListBox::GetString(n);
 121         label[1u] = (!::IsChecked(label)) ? checkChar : uncheckChar;
 122         wxListBox::SetString(n, label);
 123
 124         wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, GetId());
 125         if( HasClientObjectData() )
 126             event.SetClientObject( GetClientObject(n) );
 127         else if( HasClientUntypedData() )
 128             event.SetClientData( GetClientData(n) );
 129         event.m_commandInt = n;
 130         event.m_extraLong = TRUE;
 131         event.SetEventObject(this);
 132         event.SetString( GetString( n ) );
 133
 134         GetEventHandler()->ProcessEvent(event);
 135     }
 136 }
 137
 138 int wxCheckListBox::DoAppend(const wxString& item)
 139 {
 140     return wxListBox::DoAppend( Prefix(FALSE) + item );
 141 }
 142
 143 int wxCheckListBox::FindString(const wxString& s) const
 144 {
 145     int n1 = wxListBox::FindString(Prefix(FALSE) + s);
 146     int n2 = wxListBox::FindString(Prefix(TRUE) + s);
 147     int min = wxMin(n1, n2), max = wxMax(n1, n2);
 148
 149     // why this works:
 150     // n1 == -1, n2 == -1 => return -1 OK
 151     // n1 != -1 || n2 != -1 => min == -1 => return the other one
 152     // both != -1 => return the first one.
 153     if( min == -1 ) return max;
 154     return min;
 155 }
 156
 157 void wxCheckListBox::SetString(int n, const wxString& s)
 158 {
 159     wxListBox::SetString( n, Prefix(IsChecked(n)) + s );
 160 }
 161
 162 wxString wxCheckListBox::GetString(int n) const
 163 {
 164     return wxListBox::GetString(n).substr(4);
 165 }
 166
 167 void wxCheckListBox::DoInsertItems(const wxArrayString& items, int pos)
 168 {
 169     wxArrayString copy;
 170     CopyStringsAddingPrefix(items, copy);
 171     wxListBox::DoInsertItems(copy, pos);
 172 }
 173
 174 void wxCheckListBox::DoSetItems(const wxArrayString& items, void **clientData)
 175 {
 176     wxArrayString copy;
 177     CopyStringsAddingPrefix(items, copy);
 178     wxListBox::DoSetItems(copy, clientData);
 179 }