src/mac/carbon/choice.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/carbon/choice.cpp
   3 // Purpose:     wxChoice
   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_CHOICE
  15
  16 #include "wx/choice.h"
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/menu.h"
  20     #include "wx/dcclient.h"
  21 #endif
  22
  23 #include "wx/mac/uma.h"
  24
  25 extern MenuHandle NewUniqueMenu() ;
  26
  27 IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControlWithItems)
  28
  29
  30 wxChoice::~wxChoice()
  31 {
  32     if ( HasClientObjectData() )
  33     {
  34         unsigned int i, max = GetCount();
  35
  36         for ( i = 0; i < max; ++i )
  37             delete GetClientObject( i );
  38     }
  39
  40     // DeleteMenu( m_macPopUpMenuId ) ;
  41     // DisposeMenu( m_macPopUpMenuHandle ) ;
  42 }
  43
  44 bool wxChoice::Create(wxWindow *parent,
  45     wxWindowID id,
  46     const wxPoint& pos,
  47     const wxSize& size,
  48     const wxArrayString& choices,
  49     long style,
  50     const wxValidator& validator,
  51     const wxString& name )
  52 {
  53     return Create(
  54         parent, id, pos, size, 0, NULL,
  55         style, validator, name );
  56
  57     Append( choices );
  58
  59     if ( !choices.empty() )
  60         SetSelection( 0 );
  61 }
  62
  63 bool wxChoice::Create(wxWindow *parent,
  64     wxWindowID id,
  65     const wxPoint& pos,
  66     const wxSize& size,
  67     int n,
  68     const wxString choices[],
  69     long style,
  70     const wxValidator& validator,
  71     const wxString& name )
  72 {
  73     m_macIsUserPane = false;
  74
  75     if ( !wxChoiceBase::Create( parent, id, pos, size, style, validator, name ) )
  76         return false;
  77
  78     Rect bounds = wxMacGetBoundsForControl( this , pos , size );
  79
  80     m_peer = new wxMacControl( this ) ;
  81     OSStatus err = CreatePopupButtonControl(
  82         MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds , CFSTR("") ,
  83         -12345 , false /* no variable width */ , 0 , 0 , 0 , m_peer->GetControlRefAddr() );
  84     verify_noerr( err );
  85
  86     m_macPopUpMenuHandle = NewUniqueMenu() ;
  87     m_peer->SetData<MenuHandle>( kControlNoPart , kControlPopupButtonMenuHandleTag , (MenuHandle) m_macPopUpMenuHandle ) ;
  88     m_peer->SetValueAndRange( n > 0 ? 1 : 0 , 0 , 0 );
  89     MacPostControlCreate( pos, size );
  90
  91 #if !wxUSE_STL
  92     if ( style & wxCB_SORT )
  93         // autosort
  94         m_strings = wxArrayString( 1 );
  95 #endif
  96
  97     Append(n, choices);
  98
  99     // Set the first item as being selected
 100     if (n > 0)
 101         SetSelection( 0 );
 102
 103     // Needed because it is a wxControlWithItems
 104     SetInitialSize( size );
 105
 106     return true;
 107 }
 108
 109 // ----------------------------------------------------------------------------
 110 // adding/deleting items to/from the list
 111 // ----------------------------------------------------------------------------
 112
 113 int wxChoice::DoInsertItems(const wxArrayStringsAdapter & items,
 114                             unsigned int pos,
 115                             void **clientData, wxClientDataType type)
 116 {
 117     const unsigned int numItems = items.GetCount();
 118     for( unsigned int i = 0; i < numItems; ++i, ++pos )
 119     {
 120         unsigned int idx;
 121
 122 #if wxUSE_STL
 123         if ( IsSorted() )
 124         {
 125             wxArrayString::iterator
 126                 insertPoint = std::lower_bound( m_strings.begin(), m_strings.end(), items[i] );
 127             idx = insertPoint - m_strings.begin();
 128             m_strings.insert( insertPoint, items[i] );
 129         }
 130         else
 131 #endif // wxUSE_STL
 132         {
 133             idx = pos;
 134             m_strings.Insert( items[i], idx );
 135         }
 136
 137         UMAInsertMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ),
 138                           items[i],
 139                           m_font.GetEncoding(),
 140                           idx);
 141         m_datas.Insert( NULL, idx );
 142         AssignNewItemClientData(idx, clientData, i, type);
 143     }
 144
 145     m_peer->SetMaximum( GetCount() );
 146
 147     return pos - 1;
 148 }
 149
 150 void wxChoice::DoDeleteOneItem(unsigned int n)
 151 {
 152     wxCHECK_RET( IsValid(n) , wxT("wxChoice::Delete: invalid index") );
 153
 154     if ( HasClientObjectData() )
 155         delete GetClientObject( n );
 156
 157     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1 ) ;
 158     m_strings.RemoveAt( n ) ;
 159     m_datas.RemoveAt( n ) ;
 160     m_peer->SetMaximum( GetCount() ) ;
 161 }
 162
 163 void wxChoice::DoClear()
 164 {
 165     for ( unsigned int i = 0 ; i < GetCount() ; i++ )
 166     {
 167         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
 168     }
 169
 170     m_strings.Empty() ;
 171     m_datas.Empty() ;
 172     m_peer->SetMaximum( 0 ) ;
 173 }
 174
 175 // ----------------------------------------------------------------------------
 176 // selection
 177 // ----------------------------------------------------------------------------
 178 int wxChoice::GetSelection() const
 179 {
 180     return m_peer->GetValue() - 1 ;
 181 }
 182
 183 void wxChoice::SetSelection( int n )
 184 {
 185     m_peer->SetValue( n + 1 ) ;
 186 }
 187
 188 // ----------------------------------------------------------------------------
 189 // string list functions
 190 // ----------------------------------------------------------------------------
 191
 192 unsigned int wxChoice::GetCount() const
 193 {
 194     return m_strings.GetCount() ;
 195 }
 196
 197 int wxChoice::FindString( const wxString& s, bool bCase ) const
 198 {
 199 #if !wxUSE_STL
 200     // Avoid assert for non-default args passed to sorted array Index
 201     if ( IsSorted() )
 202         bCase = true;
 203 #endif
 204
 205     return m_strings.Index( s , bCase ) ;
 206 }
 207
 208 void wxChoice::SetString(unsigned int n, const wxString& s)
 209 {
 210     wxCHECK_RET( IsValid(n), wxT("wxChoice::SetString(): invalid index") );
 211
 212     m_strings[n] = s ;
 213
 214     // apple menu pos is 1-based
 215     UMASetMenuItemText( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1 , s , wxFont::GetDefaultEncoding() ) ;
 216 }
 217
 218 wxString wxChoice::GetString(unsigned int n) const
 219 {
 220     wxCHECK_MSG( IsValid(n), wxEmptyString, wxT("wxChoice::GetString(): invalid index") );
 221
 222     return m_strings[n] ;
 223 }
 224
 225 // ----------------------------------------------------------------------------
 226 // client data
 227 // ----------------------------------------------------------------------------
 228 void wxChoice::DoSetItemClientData(unsigned int n, void* clientData)
 229 {
 230     wxCHECK_RET( IsValid(n), wxT("wxChoice::DoSetItemClientData: invalid index") );
 231
 232     m_datas[n] = (char*)clientData ;
 233 }
 234
 235 void * wxChoice::DoGetItemClientData(unsigned int n) const
 236 {
 237     wxCHECK_MSG( IsValid(n), NULL, wxT("wxChoice::DoGetClientData: invalid index") );
 238
 239     return (void *)m_datas[n];
 240 }
 241
 242 wxInt32 wxChoice::MacControlHit( WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
 243 {
 244     wxCommandEvent event( wxEVT_COMMAND_CHOICE_SELECTED, m_windowId );
 245
 246     // actually n should be made sure by the os to be a valid selection, but ...
 247     int n = GetSelection();
 248     if ( n > -1 )
 249     {
 250         event.SetInt( n );
 251         event.SetString( GetStringSelection() );
 252         event.SetEventObject( this );
 253
 254         if ( HasClientObjectData() )
 255             event.SetClientObject( GetClientObject( n ) );
 256         else if ( HasClientUntypedData() )
 257             event.SetClientData( GetClientData( n ) );
 258
 259         ProcessCommand( event );
 260     }
 261
 262     return noErr ;
 263 }
 264
 265 wxSize wxChoice::DoGetBestSize() const
 266 {
 267     int lbWidth = GetCount() > 0 ? 20 : 100;  // some defaults
 268     int lbHeight = 20;
 269     int wLine;
 270
 271     SInt32 metric ;
 272
 273     GetThemeMetric( kThemeMetricPopupButtonHeight , &metric );
 274     lbHeight = metric ;
 275
 276     {
 277         wxClientDC dc(const_cast<wxChoice*>(this));
 278
 279         // Find the widest line
 280         for(unsigned int i = 0; i < GetCount(); i++)
 281         {
 282             wxString str(GetString(i));
 283
 284             wxCoord width, height ;
 285             dc.GetTextExtent( str , &width, &height);
 286             wLine = width ;
 287
 288             lbWidth = wxMax( lbWidth, wLine ) ;
 289         }
 290
 291         // Add room for the popup arrow
 292         lbWidth += 2 * lbHeight ;
 293
 294         wxCoord width, height ;
 295         dc.GetTextExtent( wxT("X"), &width, &height);
 296         int cx = width ;
 297         lbHeight += 4;
 298
 299         lbWidth += cx ;
 300     }
 301
 302     return wxSize( lbWidth, lbHeight );
 303 }
 304
 305 #endif // wxUSE_CHOICE