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:      $Id$
   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 wxComboBox::~wxComboBox()
  25 {
  26 }
  27
  28 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
  29            const wxString& value,
  30            const wxPoint& pos,
  31            const wxSize& size,
  32            const wxArrayString& choices,
  33            long style,
  34            const wxValidator& validator,
  35            const wxString& name)
  36 {
  37     wxCArrayString chs( choices );
  38
  39     return Create( parent, id, value, pos, size, chs.GetCount(),
  40                    chs.GetStrings(), style, validator, name );
  41 }
  42
  43 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
  44            const wxString& value,
  45            const wxPoint& pos,
  46            const wxSize& size,
  47            int n, const wxString choices[],
  48            long style,
  49            const wxValidator& validator,
  50            const wxString& name)
  51 {
  52     DontCreatePeer();
  53
  54     m_text = NULL;
  55     m_choice = NULL;
  56
  57     if ( !wxControl::Create( parent, id, pos, size, style, validator, name ) )
  58         return false;
  59
  60     wxASSERT_MSG( !(style & wxCB_SORT),
  61                   "wxCB_SORT not currently supported by wxOSX/Cocoa");
  62
  63     SetPeer(wxWidgetImpl::CreateComboBox( this, parent, id, NULL, pos, size, style, GetExtraStyle() ));
  64
  65     MacPostControlCreate( pos, size );
  66
  67     Append(n, choices);
  68
  69     // Set up the initial value, by default the first item is selected.
  70     if ( !value.empty() )
  71         SetValue(value);
  72     else if (n > 0)
  73         SetSelection( 0 );
  74
  75     // Needed because it is a wxControlWithItems
  76     SetInitialSize( size );
  77
  78     return true;
  79 }
  80
  81 void wxComboBox::DelegateTextChanged( const wxString& value )
  82 {
  83     SetStringSelection( value );
  84 }
  85
  86 void wxComboBox::DelegateChoice( const wxString& value )
  87 {
  88     SetStringSelection( value );
  89 }
  90
  91 int wxComboBox::DoInsertItems(const wxArrayStringsAdapter& items,
  92                               unsigned int pos,
  93                               void **clientData, wxClientDataType type)
  94 {
  95     const unsigned int numItems = items.GetCount();
  96     for( unsigned int i = 0; i < numItems; ++i, ++pos )
  97     {
  98         unsigned int idx;
  99
 100         idx = pos;
 101         GetComboPeer()->InsertItem( idx, items[i] );
 102
 103         if (idx > m_datas.GetCount())
 104             m_datas.SetCount(idx);
 105         m_datas.Insert( NULL, idx );
 106         AssignNewItemClientData(idx, clientData, i, type);
 107     }
 108
 109     GetPeer()->SetMaximum( GetCount() );
 110
 111     return pos - 1;
 112 }
 113
 114 // ----------------------------------------------------------------------------
 115 // client data
 116 // ----------------------------------------------------------------------------
 117 void wxComboBox::DoSetItemClientData(unsigned int n, void* clientData)
 118 {
 119     m_datas[n] = (char*)clientData ;
 120 }
 121
 122 void * wxComboBox::DoGetItemClientData(unsigned int n) const
 123 {
 124     return (void *)m_datas[n];
 125 }
 126
 127 unsigned int wxComboBox::GetCount() const
 128 {
 129     return GetComboPeer()->GetNumberOfItems();
 130 }
 131
 132 void wxComboBox::DoDeleteOneItem(unsigned int n)
 133 {
 134     m_datas.RemoveAt(n);
 135     GetComboPeer()->RemoveItem(n);
 136 }
 137
 138 void wxComboBox::DoClear()
 139 {
 140     m_datas.Clear();
 141     GetComboPeer()->Clear();
 142 }
 143
 144 void wxComboBox::GetSelection(long *from, long *to) const
 145 {
 146     wxTextEntry::GetSelection(from, to);
 147 }
 148
 149 int wxComboBox::GetSelection() const
 150 {
 151     return GetComboPeer()->GetSelectedItem();
 152 }
 153
 154 void wxComboBox::SetSelection(int n)
 155 {
 156     GetComboPeer()->SetSelectedItem(n);
 157 }
 158
 159 void wxComboBox::SetSelection(long from, long to)
 160 {
 161     wxTextEntry::SetSelection(from, to);
 162 }
 163
 164 int wxComboBox::FindString(const wxString& s, bool bCase) const
 165 {
 166     if (!bCase)
 167     {
 168         for (unsigned i = 0; i < GetCount(); i++)
 169         {
 170             if (s.IsSameAs(GetString(i), false))
 171                 return i;
 172         }
 173         return wxNOT_FOUND;
 174     }
 175
 176     return GetComboPeer()->FindString(s);
 177 }
 178
 179 wxString wxComboBox::GetString(unsigned int n) const
 180 {
 181     wxCHECK_MSG( n < GetCount(), wxString(), "Invalid combobox index" );
 182
 183     return GetComboPeer()->GetStringAtIndex(n);
 184 }
 185
 186 wxString wxComboBox::GetStringSelection() const
 187 {
 188     const int sel = GetSelection();
 189     return sel == wxNOT_FOUND ? wxString() : GetString(sel);
 190 }
 191
 192 void wxComboBox::SetValue(const wxString& value)
 193 {
 194     if ( HasFlag(wxCB_READONLY) )
 195         SetStringSelection( value ) ;
 196     else
 197         wxTextEntry::SetValue( value );
 198 }
 199
 200 void wxComboBox::SetString(unsigned int n, const wxString& s)
 201 {
 202     // Notice that we shouldn't delete and insert the item in this control
 203     // itself as this would also affect the client data which we need to
 204     // preserve here.
 205     GetComboPeer()->RemoveItem(n);
 206     GetComboPeer()->InsertItem(n, s);
 207     SetValue(s); // changing the item in the list won't update the display item
 208 }
 209
 210 void wxComboBox::EnableTextChangedEvents(bool WXUNUSED(enable))
 211 {
 212     // nothing to do here, events are never generated when we change the
 213     // control value programmatically anyhow by Cocoa
 214 }
 215
 216 bool wxComboBox::OSXHandleClicked( double WXUNUSED(timestampsec) )
 217 {
 218     wxCommandEvent event(wxEVT_COMBOBOX, m_windowId );
 219     event.SetInt(GetSelection());
 220     event.SetEventObject(this);
 221     event.SetString(GetStringSelection());
 222     ProcessCommand(event);
 223     return true;
 224 }
 225
 226 wxComboWidgetImpl* wxComboBox::GetComboPeer() const
 227 {
 228     return dynamic_cast<wxComboWidgetImpl*> (GetPeer());
 229 }
 230
 231 void wxComboBox::Popup()
 232 {
 233     GetComboPeer()->Popup();
 234 }
 235
 236 void wxComboBox::Dismiss()
 237 {
 238     GetComboPeer()->Dismiss();
 239 }
 240
 241 #endif // wxUSE_COMBOBOX && wxOSX_USE_COCOA