src/mac/carbon/choice.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 #ifdef __GNUG__
  13 #pragma implementation "choice.h"
  14 #endif
  15
  16 #include "wx/defs.h"
  17
  18 #if wxUSE_CHOICE
  19
  20 #include "wx/choice.h"
  21 #include "wx/menu.h"
  22 #include "wx/mac/uma.h"
  23
  24 #if !USE_SHARED_LIBRARY
  25 IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
  26 #endif
  27
  28 extern MenuHandle NewUniqueMenu() ;
  29
  30 wxChoice::~wxChoice()
  31 {
  32     if ( HasClientObjectData() )
  33     {
  34         size_t 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, 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(parent, id, pos, size, chs.GetCount(), chs.GetStrings(),
  55                   style, validator, name);
  56 }
  57
  58 bool wxChoice::Create(wxWindow *parent, wxWindowID id,
  59            const wxPoint& pos,
  60            const wxSize& size,
  61            int n, const wxString choices[],
  62            long style,
  63            const wxValidator& validator,
  64            const wxString& name)
  65 {
  66     m_macIsUserPane = false ;
  67
  68     if ( !wxChoiceBase::Create(parent, id, pos, size, style, validator, name) )
  69         return false;
  70
  71     Rect bounds = wxMacGetBoundsForControl( this , pos , size ) ;
  72
  73     m_peer = new wxMacControl() ;
  74     verify_noerr ( CreatePopupButtonControl( MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds , CFSTR("") ,
  75         -12345 , false /* no variable width */ , 0 , 0 , 0 , m_peer->GetControlRefAddr() ) );
  76
  77
  78     m_macPopUpMenuHandle =  NewUniqueMenu() ;
  79     m_peer->SetData<MenuHandle>( kControlNoPart , kControlPopupButtonMenuHandleTag , (MenuHandle) m_macPopUpMenuHandle ) ;
  80     m_peer->SetValueAndRange( n > 0 ? 1 : 0 , 0 , 0 ) ;
  81     MacPostControlCreate(pos,size) ;
  82     // TODO wxCB_SORT
  83     for ( int i = 0; i < n; i++ )
  84     {
  85         Append(choices[i]);
  86     }
  87     SetBestSize(size);   // Needed because it is a wxControlWithItems
  88     return true;
  89 }
  90
  91 // ----------------------------------------------------------------------------
  92 // adding/deleting items to/from the list
  93 // ----------------------------------------------------------------------------
  94 int wxChoice::DoAppend(const wxString& item)
  95 {
  96     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item, m_font.GetEncoding() );
  97     m_strings.Add( item ) ;
  98     m_datas.Add( NULL ) ;
  99     int index = m_strings.GetCount()  - 1  ;
 100     DoSetItemClientData( index , NULL ) ;
 101     m_peer->SetMaximum( GetCount() ) ;
 102     return index ;
 103 }
 104
 105 int wxChoice::DoInsert(const wxString& item, int pos)
 106 {
 107     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
 108     wxCHECK_MSG((pos>=0) && (pos<=GetCount()), -1, wxT("invalid index"));
 109
 110     if (pos == GetCount())
 111         return DoAppend(item);
 112
 113     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item, m_font.GetEncoding() );
 114     m_strings.Insert( item, pos ) ;
 115     m_datas.Insert( NULL, pos ) ;
 116     DoSetItemClientData( pos , NULL ) ;
 117     m_peer->SetMaximum( GetCount() ) ;
 118     return pos ;
 119 }
 120
 121 void wxChoice::Delete(int n)
 122 {
 123     wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
 124     if ( HasClientObjectData() )
 125     {
 126         delete GetClientObject(n);
 127     }
 128     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1) ;
 129     m_strings.RemoveAt( n ) ;
 130     m_datas.RemoveAt( n ) ;
 131     m_peer->SetMaximum( GetCount() ) ;
 132 }
 133
 134 void wxChoice::Clear()
 135 {
 136     FreeData();
 137     for ( int i = 0 ; i < GetCount() ; i++ )
 138     {
 139         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
 140     }
 141     m_strings.Empty() ;
 142     m_datas.Empty() ;
 143     m_peer->SetMaximum( 0 ) ;
 144 }
 145
 146 void wxChoice::FreeData()
 147 {
 148     if ( HasClientObjectData() )
 149     {
 150         size_t count = GetCount();
 151         for ( size_t n = 0; n < count; n++ )
 152         {
 153             delete GetClientObject(n);
 154         }
 155     }
 156 }
 157
 158 // ----------------------------------------------------------------------------
 159 // selection
 160 // ----------------------------------------------------------------------------
 161 int wxChoice::GetSelection() const
 162 {
 163     return m_peer->GetValue() -1 ;
 164 }
 165
 166 void wxChoice::SetSelection(int n)
 167 {
 168     m_peer->SetValue( n + 1 ) ;
 169 }
 170
 171 // ----------------------------------------------------------------------------
 172 // string list functions
 173 // ----------------------------------------------------------------------------
 174
 175 int wxChoice::GetCount() const
 176 {
 177     return m_strings.GetCount() ;
 178 }
 179
 180 int wxChoice::FindString(const wxString& s) const
 181 {
 182     for( int i = 0 ; i < GetCount() ; i++ )
 183     {
 184         if ( GetString( i ).IsSameAs(s, false) )
 185             return i ;
 186     }
 187     return wxNOT_FOUND ;
 188 }
 189
 190 void wxChoice::SetString(int n, const wxString& s)
 191 {
 192     wxFAIL_MSG(wxT("wxChoice::SetString() not yet implemented"));
 193 #if 0 // should do this, but no Insert() so far
 194     Delete(n);
 195     Insert(n + 1, s);
 196 #endif
 197 }
 198
 199 wxString wxChoice::GetString(int n) const
 200 {
 201     wxCHECK_MSG( n >= 0 && (size_t)n < m_strings.GetCount(), _T(""),
 202                     _T("wxChoice::GetString(): invalid index") );
 203
 204     return m_strings[n] ;
 205 }
 206
 207 // ----------------------------------------------------------------------------
 208 // client data
 209 // ----------------------------------------------------------------------------
 210 void wxChoice::DoSetItemClientData( int n, void* clientData )
 211 {
 212     wxCHECK_RET( n >= 0 && (size_t)n < m_datas.GetCount(),
 213                  wxT("invalid index in wxChoice::SetClientData") );
 214
 215     m_datas[n] = (char*) clientData ;
 216 }
 217
 218 void *wxChoice::DoGetItemClientData(int n) const
 219 {
 220     wxCHECK_MSG( n >= 0 && (size_t)n < m_datas.GetCount(), NULL,
 221                  wxT("invalid index in wxChoice::GetClientData") );
 222     return (void *)m_datas[n];
 223 }
 224
 225 void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
 226 {
 227     DoSetItemClientData(n, clientData);
 228 }
 229
 230 wxClientData* wxChoice::DoGetItemClientObject( int n ) const
 231 {
 232     return (wxClientData *)DoGetItemClientData(n);
 233 }
 234
 235 wxInt32 wxChoice::MacControlHit(WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
 236 {
 237     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId );
 238     int n = GetSelection();
 239     // actually n should be made sure by the os to be a valid selection, but ...
 240     if ( n > -1 )
 241     {
 242         event.SetInt( n );
 243         event.SetString(GetStringSelection());
 244         event.SetEventObject(this);
 245         if ( HasClientObjectData() )
 246             event.SetClientObject( GetClientObject(n) );
 247         else if ( HasClientUntypedData() )
 248             event.SetClientData( GetClientData(n) );
 249         ProcessCommand(event);
 250     }
 251     return noErr ;
 252 }
 253
 254 wxSize wxChoice::DoGetBestSize() const
 255 {
 256     int lbWidth = GetCount() > 0 ? 20 : 100;  // some defaults
 257     int lbHeight = 20;
 258     int wLine;
 259 #if TARGET_CARBON
 260     long metric ;
 261     GetThemeMetric(kThemeMetricPopupButtonHeight , &metric );
 262     lbHeight = metric ;
 263 #endif
 264     {
 265         wxMacPortStateHelper st( UMAGetWindowPort( (WindowRef) MacGetTopLevelWindowRef() ) ) ;
 266         if ( m_font.Ok() )
 267         {
 268             ::TextFont( m_font.MacGetFontNum() ) ;
 269             ::TextSize( m_font.MacGetFontSize() ) ;
 270             ::TextFace( m_font.MacGetFontStyle() ) ;
 271         }
 272         else
 273         {
 274             ::TextFont( kFontIDMonaco ) ;
 275             ::TextSize( 9  );
 276             ::TextFace( 0 ) ;
 277         }
 278         // Find the widest line
 279         for(int i = 0; i < GetCount(); i++) {
 280             wxString str(GetString(i));
 281         #if wxUSE_UNICODE
 282             Point bounds={0,0} ;
 283             SInt16 baseline ;
 284             ::GetThemeTextDimensions( wxMacCFStringHolder( str , m_font.GetEncoding() ) ,
 285                 kThemeCurrentPortFont,
 286                 kThemeStateActive,
 287                 false,
 288                 &bounds,
 289                 &baseline );
 290             wLine = bounds.h ;
 291         #else
 292             wLine = ::TextWidth( str.c_str() , 0 , str.Length() ) ;
 293         #endif
 294             lbWidth = wxMax(lbWidth, wLine);
 295         }
 296         // Add room for the popup arrow
 297         lbWidth += 2 * lbHeight ;
 298         // And just a bit more
 299         int cx = ::TextWidth( "X" , 0 , 1 ) ;
 300         lbWidth += cx ;
 301
 302     }
 303     return wxSize(lbWidth, lbHeight);
 304 }
 305
 306 #endif // wxUSE_CHOICE