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