src/osx/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/osx/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     if ( !Create( parent, id, pos, size, 0, NULL, style, validator, name ) )
  54         return false;
  55
  56     Append( choices );
  57
  58     if ( !choices.empty() )
  59         SetSelection( 0 );
  60
  61     SetInitialSize( size );
  62
  63     return true;
  64 }
  65
  66 bool wxChoice::Create(wxWindow *parent,
  67     wxWindowID id,
  68     const wxPoint& pos,
  69     const wxSize& size,
  70     int n,
  71     const wxString choices[],
  72     long style,
  73     const wxValidator& validator,
  74     const wxString& name )
  75 {
  76     m_macIsUserPane = false;
  77
  78     if ( !wxChoiceBase::Create( parent, id, pos, size, style, validator, name ) )
  79         return false;
  80
  81     Rect bounds = wxMacGetBoundsForControl( this , pos , size );
  82
  83     m_peer = new wxMacControl( this ) ;
  84     OSStatus err = CreatePopupButtonControl(
  85         MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds , CFSTR("") ,
  86         -12345 , false /* no variable width */ , 0 , 0 , 0 , m_peer->GetControlRefAddr() );
  87     verify_noerr( err );
  88
  89     m_macPopUpMenuHandle = NewUniqueMenu() ;
  90     m_peer->SetData<MenuHandle>( kControlNoPart , kControlPopupButtonMenuHandleTag , (MenuHandle) m_macPopUpMenuHandle ) ;
  91     m_peer->SetValueAndRange( n > 0 ? 1 : 0 , 0 , 0 );
  92     MacPostControlCreate( pos, size );
  93
  94 #if !wxUSE_STL
  95     if ( style & wxCB_SORT )
  96         // autosort
  97         m_strings = wxArrayString( 1 );
  98 #endif
  99
 100     Append(n, choices);
 101
 102     // Set the first item as being selected
 103     if (n > 0)
 104         SetSelection( 0 );
 105
 106     // Needed because it is a wxControlWithItems
 107     SetInitialSize( size );
 108
 109     return true;
 110 }
 111
 112 // ----------------------------------------------------------------------------
 113 // adding/deleting items to/from the list
 114 // ----------------------------------------------------------------------------
 115
 116 int wxChoice::DoInsertItems(const wxArrayStringsAdapter & items,
 117                             unsigned int pos,
 118                             void **clientData, wxClientDataType type)
 119 {
 120     const unsigned int numItems = items.GetCount();
 121     for( unsigned int i = 0; i < numItems; ++i, ++pos )
 122     {
 123         unsigned int idx;
 124
 125 #if wxUSE_STL
 126         if ( IsSorted() )
 127         {
 128             wxArrayString::iterator
 129                 insertPoint = std::lower_bound( m_strings.begin(), m_strings.end(), items[i] );
 130             idx = insertPoint - m_strings.begin();
 131             m_strings.insert( insertPoint, items[i] );
 132         }
 133         else
 134 #endif // wxUSE_STL
 135         {
 136             idx = pos;
 137             m_strings.Insert( items[i], idx );
 138         }
 139
 140         UMAInsertMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ),
 141                           items[i],
 142                           GetFont().GetEncoding(),
 143                           idx);
 144         m_datas.Insert( NULL, idx );
 145         AssignNewItemClientData(idx, clientData, i, type);
 146     }
 147
 148     m_peer->SetMaximum( GetCount() );
 149
 150     return pos - 1;
 151 }
 152
 153 void wxChoice::DoDeleteOneItem(unsigned int n)
 154 {
 155     wxCHECK_RET( IsValid(n) , wxT("wxChoice::Delete: invalid index") );
 156
 157     if ( HasClientObjectData() )
 158         delete GetClientObject( n );
 159
 160     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1 ) ;
 161     m_strings.RemoveAt( n ) ;
 162     m_datas.RemoveAt( n ) ;
 163     m_peer->SetMaximum( GetCount() ) ;
 164 }
 165
 166 void wxChoice::DoClear()
 167 {
 168     for ( unsigned int i = 0 ; i < GetCount() ; i++ )
 169     {
 170         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
 171     }
 172
 173     m_strings.Empty() ;
 174     m_datas.Empty() ;
 175     m_peer->SetMaximum( 0 ) ;
 176 }
 177
 178 // ----------------------------------------------------------------------------
 179 // selection
 180 // ----------------------------------------------------------------------------
 181 int wxChoice::GetSelection() const
 182 {
 183     return m_peer->GetValue() - 1 ;
 184 }
 185
 186 void wxChoice::SetSelection( int n )
 187 {
 188     m_peer->SetValue( n + 1 ) ;
 189 }
 190
 191 // ----------------------------------------------------------------------------
 192 // string list functions
 193 // ----------------------------------------------------------------------------
 194
 195 unsigned int wxChoice::GetCount() const
 196 {
 197     return m_strings.GetCount() ;
 198 }
 199
 200 int wxChoice::FindString( const wxString& s, bool bCase ) const
 201 {
 202 #if !wxUSE_STL
 203     // Avoid assert for non-default args passed to sorted array Index
 204     if ( IsSorted() )
 205         bCase = true;
 206 #endif
 207
 208     return m_strings.Index( s , bCase ) ;
 209 }
 210
 211 void wxChoice::SetString(unsigned int n, const wxString& s)
 212 {
 213     wxCHECK_RET( IsValid(n), wxT("wxChoice::SetString(): invalid index") );
 214
 215     m_strings[n] = s ;
 216
 217     // apple menu pos is 1-based
 218     UMASetMenuItemText( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1 , s , wxFont::GetDefaultEncoding() ) ;
 219 }
 220
 221 wxString wxChoice::GetString(unsigned int n) const
 222 {
 223     wxCHECK_MSG( IsValid(n), wxEmptyString, wxT("wxChoice::GetString(): invalid index") );
 224
 225     return m_strings[n] ;
 226 }
 227
 228 // ----------------------------------------------------------------------------
 229 // client data
 230 // ----------------------------------------------------------------------------
 231 void wxChoice::DoSetItemClientData(unsigned int n, void* clientData)
 232 {
 233     wxCHECK_RET( IsValid(n), wxT("wxChoice::DoSetItemClientData: invalid index") );
 234
 235     m_datas[n] = (char*)clientData ;
 236 }
 237
 238 void * wxChoice::DoGetItemClientData(unsigned int n) const
 239 {
 240     wxCHECK_MSG( IsValid(n), NULL, wxT("wxChoice::DoGetClientData: invalid index") );
 241
 242     return (void *)m_datas[n];
 243 }
 244
 245 wxInt32 wxChoice::MacControlHit( WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
 246 {
 247     wxCommandEvent event( wxEVT_COMMAND_CHOICE_SELECTED, m_windowId );
 248
 249     // actually n should be made sure by the os to be a valid selection, but ...
 250     int n = GetSelection();
 251     if ( n > -1 )
 252     {
 253         event.SetInt( n );
 254         event.SetString( GetStringSelection() );
 255         event.SetEventObject( this );
 256
 257         if ( HasClientObjectData() )
 258             event.SetClientObject( GetClientObject( n ) );
 259         else if ( HasClientUntypedData() )
 260             event.SetClientData( GetClientData( n ) );
 261
 262         ProcessCommand( event );
 263     }
 264
 265     return noErr ;
 266 }
 267
 268 wxSize wxChoice::DoGetBestSize() const
 269 {
 270     int lbWidth = GetCount() > 0 ? 20 : 100;  // some defaults
 271     int lbHeight = 20;
 272     int wLine;
 273
 274     SInt32 metric ;
 275
 276     GetThemeMetric( kThemeMetricPopupButtonHeight , &metric );
 277     lbHeight = metric ;
 278
 279     {
 280         wxClientDC dc(const_cast<wxChoice*>(this));
 281
 282         // Find the widest line
 283         for(unsigned int i = 0; i < GetCount(); i++)
 284         {
 285             wxString str(GetString(i));
 286
 287             wxCoord width, height ;
 288             dc.GetTextExtent( str , &width, &height);
 289             wLine = width ;
 290
 291             lbWidth = wxMax( lbWidth, wLine ) ;
 292         }
 293
 294         // Add room for the popup arrow
 295         lbWidth += 2 * lbHeight ;
 296
 297         wxCoord width, height ;
 298         dc.GetTextExtent( wxT("X"), &width, &height);
 299         int cx = width ;
 300         lbHeight += 4;
 301
 302         lbWidth += cx ;
 303     }
 304
 305     return wxSize( lbWidth, lbHeight );
 306 }
 307
 308 #endif // wxUSE_CHOICE