src/osx/combobox_osx.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/combobox_osx.cpp
   3 // Purpose:     wxComboBox class using HIView ComboBox
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id: combobox_osx.cpp 58318 2009-01-23 08:36:16Z RR $
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #if wxUSE_COMBOBOX && wxOSX_USE_COCOA
  15
  16 #include "wx/combobox.h"
  17 #include "wx/osx/private.h"
  18
  19 #ifndef WX_PRECOMP
  20 #endif
  21
  22 // work in progress
  23
  24 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
  25
  26 wxComboBox::~wxComboBox()
  27 {
  28 }
  29
  30 void wxComboBox::Init()
  31 {
  32 }
  33
  34 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
  35            const wxString& value,
  36            const wxPoint& pos,
  37            const wxSize& size,
  38            const wxArrayString& choices,
  39            long style,
  40            const wxValidator& validator,
  41            const wxString& name)
  42 {
  43     wxCArrayString chs( choices );
  44
  45     return Create( parent, id, value, pos, size, chs.GetCount(),
  46                    chs.GetStrings(), style, validator, name );
  47 }
  48
  49 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
  50            const wxString& value,
  51            const wxPoint& pos,
  52            const wxSize& size,
  53            int n, const wxString choices[],
  54            long style,
  55            const wxValidator& validator,
  56            const wxString& name)
  57 {
  58     m_text = NULL;
  59     m_choice = NULL;
  60
  61     m_macIsUserPane = false;
  62
  63     if ( !wxControl::Create( parent, id, pos, size, style, validator, name ) )
  64         return false;
  65
  66     wxASSERT_MSG( !(style & wxCB_SORT),
  67                   "wxCB_SORT not currently supported by wxOSX/Cocoa");
  68
  69     m_peer = wxWidgetImpl::CreateComboBox( this, parent, id, NULL, pos, size, style, GetExtraStyle() );
  70
  71     MacPostControlCreate( pos, size );
  72
  73     Append(n, choices);
  74
  75     // Set up the initial value, by default the first item is selected.
  76     if ( !value.empty() )
  77         SetValue(value);
  78     else if (n > 0)
  79         SetSelection( 0 );
  80
  81     // Needed because it is a wxControlWithItems
  82     SetInitialSize( size );
  83
  84     return true;
  85 }
  86
  87 void wxComboBox::DelegateTextChanged( const wxString& value )
  88 {
  89     SetStringSelection( value );
  90 }
  91
  92 void wxComboBox::DelegateChoice( const wxString& value )
  93 {
  94     SetStringSelection( value );
  95 }
  96
  97 int wxComboBox::DoInsertItems(const wxArrayStringsAdapter& items,
  98                               unsigned int pos,
  99                               void **clientData, wxClientDataType type)
 100 {
 101     const unsigned int numItems = items.GetCount();
 102     for( unsigned int i = 0; i < numItems; ++i, ++pos )
 103     {
 104         unsigned int idx;
 105
 106         idx = pos;
 107         GetComboPeer()->InsertItem( idx, items[i] );
 108
 109         if (idx > m_datas.GetCount())
 110             m_datas.SetCount(idx);
 111         m_datas.Insert( NULL, idx );
 112         AssignNewItemClientData(idx, clientData, i, type);
 113     }
 114
 115     m_peer->SetMaximum( GetCount() );
 116
 117     return pos - 1;
 118 }
 119
 120 // ----------------------------------------------------------------------------
 121 // client data
 122 // ----------------------------------------------------------------------------
 123 void wxComboBox::DoSetItemClientData(unsigned int n, void* clientData)
 124 {
 125     wxCHECK_RET( IsValid(n), "invalid index" );
 126
 127     m_datas[n] = (char*)clientData ;
 128 }
 129
 130 void * wxComboBox::DoGetItemClientData(unsigned int n) const
 131 {
 132     wxCHECK_MSG( IsValid(n), NULL, "invalid index" );
 133
 134     return (void *)m_datas[n];
 135 }
 136
 137 unsigned int wxComboBox::GetCount() const
 138 {
 139     return GetComboPeer()->GetNumberOfItems();
 140 }
 141
 142 void wxComboBox::DoDeleteOneItem(unsigned int n)
 143 {
 144     GetComboPeer()->RemoveItem(n);
 145 }
 146
 147 void wxComboBox::DoClear()
 148 {
 149     GetComboPeer()->Clear();
 150 }
 151
 152 void wxComboBox::GetSelection(long *from, long *to) const
 153 {
 154     wxTextEntry::GetSelection(from, to);
 155 }
 156
 157 int wxComboBox::GetSelection() const
 158 {
 159     return GetComboPeer()->GetSelectedItem();
 160 }
 161
 162 void wxComboBox::SetSelection(int n)
 163 {
 164     GetComboPeer()->SetSelectedItem(n);
 165 }
 166
 167 void wxComboBox::SetSelection(long from, long to)
 168 {
 169     wxTextEntry::SetSelection(from, to);
 170 }
 171
 172 int wxComboBox::FindString(const wxString& s, bool bCase) const
 173 {
 174     if (!bCase)
 175     {
 176         for (unsigned i = 0; i < GetCount(); i++)
 177         {
 178             if (s.IsSameAs(GetString(i), false))
 179                 return i;
 180         }
 181         return wxNOT_FOUND;
 182     }
 183
 184     return GetComboPeer()->FindString(s);
 185 }
 186
 187 wxString wxComboBox::GetString(unsigned int n) const
 188 {
 189     wxCHECK_MSG( n < GetCount(), wxString(), "Invalid combobox index" );
 190
 191     return GetComboPeer()->GetStringAtIndex(n);
 192 }
 193
 194 wxString wxComboBox::GetStringSelection() const
 195 {
 196     const int sel = GetSelection();
 197     return sel == wxNOT_FOUND ? wxString() : GetString(sel);
 198 }
 199
 200 void wxComboBox::SetString(unsigned int n, const wxString& s)
 201 {
 202     Delete(n);
 203     Insert(s, n);
 204     SetValue(s); // changing the item in the list won't update the display item
 205 }
 206
 207 void wxComboBox::EnableTextChangedEvents(bool WXUNUSED(enable))
 208 {
 209     // nothing to do here, events are never generated when we change the
 210     // control value programmatically anyhow by Cocoa
 211 }
 212
 213 bool wxComboBox::OSXHandleClicked( double WXUNUSED(timestampsec) )
 214 {
 215     wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, m_windowId );
 216     event.SetInt(GetSelection());
 217     event.SetEventObject(this);
 218     event.SetString(GetStringSelection());
 219     ProcessCommand(event);
 220     return true;
 221 }
 222
 223 wxComboWidgetImpl* wxComboBox::GetComboPeer() const
 224 {
 225     return dynamic_cast<wxComboWidgetImpl*> (m_peer);
 226 }
 227
 228 #endif // wxUSE_COMBOBOX && wxOSX_USE_COCOA