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 #endif
  21
  22 #include "wx/mac/uma.h"
  23
  24 extern MenuHandle NewUniqueMenu() ;
  25
  26 IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
  27
  28
  29 wxChoice::~wxChoice()
  30 {
  31     if ( HasClientObjectData() )
  32     {
  33         unsigned int i, max = GetCount();
  34
  35         for ( i = 0; i < max; ++i )
  36             delete GetClientObject( i );
  37     }
  38
  39     // DeleteMenu( m_macPopUpMenuId ) ;
  40     // DisposeMenu( m_macPopUpMenuHandle ) ;
  41 }
  42
  43 bool wxChoice::Create(wxWindow *parent,
  44     wxWindowID id,
  45     const wxPoint& pos,
  46     const wxSize& size,
  47     const wxArrayString& choices,
  48     long style,
  49     const wxValidator& validator,
  50     const wxString& name )
  51 {
  52     wxCArrayString chs( choices );
  53
  54     return Create(
  55         parent, id, pos, size, chs.GetCount(), chs.GetStrings(),
  56         style, validator, name );
  57 }
  58
  59 bool wxChoice::Create(wxWindow *parent,
  60     wxWindowID id,
  61     const wxPoint& pos,
  62     const wxSize& size,
  63     int n,
  64     const wxString choices[],
  65     long style,
  66     const wxValidator& validator,
  67     const wxString& name )
  68 {
  69     m_macIsUserPane = false;
  70
  71     if ( !wxChoiceBase::Create( parent, id, pos, size, style, validator, name ) )
  72         return false;
  73
  74     Rect bounds = wxMacGetBoundsForControl( this , pos , size );
  75
  76     m_peer = new wxMacControl( this ) ;
  77     OSStatus err = CreatePopupButtonControl(
  78         MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds , CFSTR("") ,
  79         -12345 , false /* no variable width */ , 0 , 0 , 0 , m_peer->GetControlRefAddr() );
  80     verify_noerr( err );
  81
  82     m_macPopUpMenuHandle = NewUniqueMenu() ;
  83     m_peer->SetData<MenuHandle>( kControlNoPart , kControlPopupButtonMenuHandleTag , (MenuHandle) m_macPopUpMenuHandle ) ;
  84     m_peer->SetValueAndRange( n > 0 ? 1 : 0 , 0 , 0 );
  85     MacPostControlCreate( pos, size );
  86
  87 #if !wxUSE_STL
  88     if ( style & wxCB_SORT )
  89         // autosort
  90         m_strings = wxArrayString( 1 );
  91 #endif
  92
  93     for ( int i = 0; i < n; i++ )
  94     {
  95         Append( choices[i] );
  96     }
  97
  98     // Set the first item as being selected
  99     if (n > 0)
 100         SetSelection( 0 );
 101
 102     // Needed because it is a wxControlWithItems
 103     SetBestSize( size );
 104
 105     return true;
 106 }
 107
 108 // ----------------------------------------------------------------------------
 109 // adding/deleting items to/from the list
 110 // ----------------------------------------------------------------------------
 111 int wxChoice::DoAppend( const wxString& item )
 112 {
 113 #if wxUSE_STL
 114     wxArrayString::iterator insertPoint;
 115     unsigned int index;
 116
 117     if (GetWindowStyle() & wxCB_SORT)
 118     {
 119         insertPoint = std::lower_bound( m_strings.begin(), m_strings.end(), item );
 120         index = insertPoint - m_strings.begin();
 121     }
 122     else
 123     {
 124         insertPoint = m_strings.end();
 125         index = m_strings.size();
 126     }
 127
 128     m_strings.insert( insertPoint, item );
 129 #else
 130     unsigned int index = m_strings.Add( item );
 131 #endif
 132
 133     m_datas.Insert( NULL , index );
 134     UMAInsertMenuItem( MAC_WXHMENU( m_macPopUpMenuHandle ), item, m_font.GetEncoding(), index );
 135     DoSetItemClientData( index, NULL );
 136     m_peer->SetMaximum( GetCount() );
 137
 138     return index;
 139 }
 140
 141 int wxChoice::DoInsert( const wxString& item, unsigned int pos )
 142 {
 143     wxCHECK_MSG( !(GetWindowStyle() & wxCB_SORT), -1, wxT("wxChoice::DoInsert: can't insert into sorted list") );
 144     wxCHECK_MSG( IsValidInsert(pos), -1, wxT("wxChoice::DoInsert: invalid index") );
 145
 146     if (pos == GetCount())
 147         return DoAppend( item );
 148
 149     UMAInsertMenuItem( MAC_WXHMENU( m_macPopUpMenuHandle ), item, m_font.GetEncoding(), pos );
 150     m_strings.Insert( item, pos );
 151     m_datas.Insert( NULL, pos );
 152     DoSetItemClientData( pos, NULL );
 153     m_peer->SetMaximum( GetCount() );
 154
 155     return pos;
 156 }
 157
 158 void wxChoice::Delete(unsigned int n)
 159 {
 160     wxCHECK_RET( IsValid(n) , wxT("wxChoice::Delete: invalid index") );
 161
 162     if ( HasClientObjectData() )
 163         delete GetClientObject( n );
 164
 165     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1 ) ;
 166     m_strings.RemoveAt( n ) ;
 167     m_datas.RemoveAt( n ) ;
 168     m_peer->SetMaximum( GetCount() ) ;
 169 }
 170
 171 void wxChoice::Clear()
 172 {
 173     FreeData();
 174     for ( unsigned int i = 0 ; i < GetCount() ; i++ )
 175     {
 176         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
 177     }
 178
 179     m_strings.Empty() ;
 180     m_datas.Empty() ;
 181     m_peer->SetMaximum( 0 ) ;
 182 }
 183
 184 void wxChoice::FreeData()
 185 {
 186     if ( HasClientObjectData() )
 187     {
 188         unsigned int count = GetCount();
 189         for ( unsigned int n = 0; n < count; n++ )
 190         {
 191             delete GetClientObject( n );
 192         }
 193     }
 194 }
 195
 196 // ----------------------------------------------------------------------------
 197 // selection
 198 // ----------------------------------------------------------------------------
 199 int wxChoice::GetSelection() const
 200 {
 201     return m_peer->GetValue() - 1 ;
 202 }
 203
 204 void wxChoice::SetSelection( int n )
 205 {
 206     m_peer->SetValue( n + 1 ) ;
 207 }
 208
 209 // ----------------------------------------------------------------------------
 210 // string list functions
 211 // ----------------------------------------------------------------------------
 212
 213 unsigned int wxChoice::GetCount() const
 214 {
 215     return m_strings.GetCount() ;
 216 }
 217
 218 int wxChoice::FindString( const wxString& s, bool bCase ) const
 219 {
 220     return m_strings.Index( s , bCase ) ;
 221 }
 222
 223 void wxChoice::SetString(unsigned int n, const wxString& s)
 224 {
 225     wxCHECK_RET( IsValid(n), wxT("wxChoice::SetString(): invalid index") );
 226
 227     m_strings[n] = s ;
 228
 229     // apple menu pos is 1-based
 230     UMASetMenuItemText( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1 , s , wxFont::GetDefaultEncoding() ) ;
 231 }
 232
 233 wxString wxChoice::GetString(unsigned int n) const
 234 {
 235     wxCHECK_MSG( IsValid(n), wxEmptyString, wxT("wxChoice::GetString(): invalid index") );
 236
 237     return m_strings[n] ;
 238 }
 239
 240 // ----------------------------------------------------------------------------
 241 // client data
 242 // ----------------------------------------------------------------------------
 243 void wxChoice::DoSetItemClientData(unsigned int n, void* clientData)
 244 {
 245     wxCHECK_RET( IsValid(n), wxT("wxChoice::DoSetItemClientData: invalid index") );
 246
 247     m_datas[n] = (char*)clientData ;
 248 }
 249
 250 void * wxChoice::DoGetItemClientData(unsigned int n) const
 251 {
 252     wxCHECK_MSG( IsValid(n), NULL, wxT("wxChoice::DoGetClientData: invalid index") );
 253
 254     return (void *)m_datas[n];
 255 }
 256
 257 void wxChoice::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
 258 {
 259     DoSetItemClientData(n, clientData);
 260 }
 261
 262 wxClientData* wxChoice::DoGetItemClientObject(unsigned int n) const
 263 {
 264     return (wxClientData*)DoGetItemClientData( n ) ;
 265 }
 266
 267 wxInt32 wxChoice::MacControlHit( WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
 268 {
 269     wxCommandEvent event( wxEVT_COMMAND_CHOICE_SELECTED, m_windowId );
 270
 271     // actually n should be made sure by the os to be a valid selection, but ...
 272     int n = GetSelection();
 273     if ( n > -1 )
 274     {
 275         event.SetInt( n );
 276         event.SetString( GetStringSelection() );
 277         event.SetEventObject( this );
 278
 279         if ( HasClientObjectData() )
 280             event.SetClientObject( GetClientObject( n ) );
 281         else if ( HasClientUntypedData() )
 282             event.SetClientData( GetClientData( n ) );
 283
 284         ProcessCommand( event );
 285     }
 286
 287     return noErr ;
 288 }
 289
 290 wxSize wxChoice::DoGetBestSize() const
 291 {
 292     int lbWidth = GetCount() > 0 ? 20 : 100;  // some defaults
 293     int lbHeight = 20;
 294     int wLine;
 295
 296 #if TARGET_CARBON
 297     long metric ;
 298
 299     GetThemeMetric( kThemeMetricPopupButtonHeight , &metric );
 300     lbHeight = metric ;
 301 #endif
 302
 303     {
 304         wxMacPortStateHelper st( UMAGetWindowPort( (WindowRef) MacGetTopLevelWindowRef() ) ) ;
 305         if ( m_font.Ok() )
 306         {
 307             ::TextFont( m_font.MacGetFontNum() ) ;
 308             ::TextSize( m_font.MacGetFontSize() ) ;
 309             ::TextFace( m_font.MacGetFontStyle() ) ;
 310         }
 311         else
 312         {
 313             ::TextFont( kFontIDMonaco ) ;
 314             ::TextSize( 9 ) ;
 315             ::TextFace( 0 ) ;
 316         }
 317
 318         // Find the widest line
 319         for(unsigned int i = 0; i < GetCount(); i++)
 320         {
 321             wxString str(GetString(i));
 322
 323 #if wxUSE_UNICODE
 324             Point bounds = { 0, 0 } ;
 325             SInt16 baseline ;
 326
 327             ::GetThemeTextDimensions( wxMacCFStringHolder( str , m_font.GetEncoding() ) ,
 328                 kThemeCurrentPortFont,
 329                 kThemeStateActive,
 330                 false,
 331                 &bounds,
 332                 &baseline );
 333
 334             wLine = bounds.h ;
 335 #else
 336             wLine = ::TextWidth( str.c_str() , 0 , str.length() ) ;
 337 #endif
 338
 339             lbWidth = wxMax( lbWidth, wLine ) ;
 340         }
 341
 342         // Add room for the popup arrow
 343         lbWidth += 2 * lbHeight ;
 344
 345         // And just a bit more
 346         int cx = ::TextWidth( "X" , 0 , 1 ) ;
 347         lbWidth += cx ;
 348     }
 349
 350     return wxSize( lbWidth, lbHeight );
 351 }
 352
 353 #endif // wxUSE_CHOICE