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[i] = Prefix(FALSE) + orig[i];
  58 }
  59
  60 static wxString* CopyStringsAddingPrefix(size_t n, const wxString choices[])
  61 {
  62     wxString* copy = new wxString[n];
  63
  64     for(size_t i = 0; i < n; ++i )
  65         copy[i].Add( Prefix(FALSE) + choices[i] );
  66
  67     return copy;
  68 }
  69
  70 // def ctor: use Create() to really create the control
  71 wxCheckListBox::wxCheckListBox() : wxCheckListBoxBase()
  72 {
  73 }
  74
  75 // ctor which creates the associated control
  76 wxCheckListBox::wxCheckListBox(wxWindow *parent, wxWindowID id,
  77                                const wxPoint& pos, const wxSize& size,
  78                                int nStrings, const wxString choices[],
  79                                long style, const wxValidator& val,
  80                                const wxString& name)
  81                                : wxCheckListBoxBase()
  82 {
  83     Create(parent, id, pos, size, nStrings, choices,
  84            style, val, name);
  85 }
  86
  87 bool wxCheckListBox::Create(wxWindow *parent, wxWindowID id,
  88                             const wxPoint& pos = wxDefaultPosition,
  89                             const wxSize& size = wxDefaultSize,
  90                             int n = 0, const wxString choices[] = NULL,
  91                             long style = 0,
  92                             const wxValidator& validator = wxDefaultValidator,
  93                             const wxString& name)
  94 {
  95     wxString* chs = CopyStringsAddingPrefix(n, choices);
  96     bool retVal = wxListBox::Create(parent, id, pos, size, n, chs,
  97                                     style, validator, name);
  98     delete[] chs;
  99     return retVal;
 100 }
 101
 102 // check items
 103 // -----------
 104
 105 bool wxCheckListBox::IsChecked(size_t uiIndex) const
 106 {
 107     return ::IsChecked(wxListBox::GetString(uiIndex));
 108 }
 109
 110 void wxCheckListBox::Check(size_t uiIndex, bool bCheck)
 111 {
 112     wxString label = wxListBox::GetString(uiIndex);
 113     if(::IsChecked(label) == bCheck) return;
 114     label[1u] = bCheck ? checkChar : uncheckChar;
 115     wxListBox::SetString(uiIndex, label);
 116 }
 117
 118 void wxCheckListBox::DoToggleItem( int n, int x )
 119 {
 120     if( x < 23 )
 121     {
 122         wxString label = wxListBox::GetString(n);
 123         label[1u] = (!::IsChecked(label)) ? checkChar : uncheckChar;
 124         wxListBox::SetString(n, label);
 125
 126         wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, GetId());
 127         if( HasClientObjectData() )
 128             event.SetClientObject( GetClientObject(n) );
 129         else if( HasClientUntypedData() )
 130             event.SetClientData( GetClientData(n) );
 131         event.m_commandInt = n;
 132         event.m_extraLong = TRUE;
 133         event.SetEventObject(this);
 134         event.SetString( GetString( n ) );
 135
 136         GetEventHandler()->ProcessEvent(event);
 137     }
 138 }
 139
 140 int wxCheckListBox::DoAppend(const wxString& item)
 141 {
 142     return wxListBox::DoAppend( Prefix(FALSE) + item );
 143 }
 144
 145 int wxCheckListBox::FindString(const wxString& s) const
 146 {
 147     int n1 = wxListBox::FindString(Prefix(FALSE) + s);
 148     int n2 = wxListBox::FindString(Prefix(TRUE) + s);
 149     int min = wxMin(n1, n2), max = wxMax(n1, n2);
 150
 151     // why this works:
 152     // n1 == -1, n2 == -1 => return -1 OK
 153     // n1 != -1 || n2 != -1 => min == -1 => return the other one
 154     // both != -1 => return the first one.
 155     if( min == -1 ) return max;
 156     return min;
 157 }
 158
 159 void wxCheckListBox::SetString(int n, const wxString& s)
 160 {
 161     wxListBox::SetString( n, Prefix(IsChecked(n)) + s );
 162 }
 163
 164 wxString wxCheckListBox::GetString(int n) const
 165 {
 166     return wxListBox::GetString(n).substr(4);
 167 }
 168
 169 void wxCheckListBox::DoInsertItems(const wxArrayString& items, int pos)
 170 {
 171     wxArrayString copy;
 172     CopyStringsAddingPrefix(items, copy);
 173     wxListBox::DoInsertItems(copy, pos);
 174 }
 175
 176 void wxCheckListBox::DoSetItems(const wxArrayString& items, void **clientData)
 177 {
 178     wxArrayString copy;
 179     CopyStringsAddingPrefix(items, copy);
 180     wxListBox::DoSetItems(copy, clientData);
 181 }