src/mac/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 #include "wx/choice.h"
  18 #include "wx/menu.h"
  19 #include "wx/mac/uma.h"
  20
  21 #if !USE_SHARED_LIBRARY
  22 IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
  23 #endif
  24
  25 extern MenuHandle NewUniqueMenu() ;
  26
  27 wxChoice::~wxChoice()
  28 {
  29     if ( HasClientObjectData() )
  30     {
  31         size_t i, max = GetCount();
  32
  33         for ( i = 0; i < max; ++i )
  34             delete GetClientObject(i);
  35     }
  36
  37         // DeleteMenu( m_macPopUpMenuId ) ;
  38     // DisposeMenu( m_macPopUpMenuHandle ) ;
  39 }
  40
  41 bool wxChoice::Create(wxWindow *parent, wxWindowID id,
  42            const wxPoint& pos,
  43            const wxSize& size,
  44            int n, const wxString choices[],
  45            long style,
  46            const wxValidator& validator,
  47            const wxString& name)
  48 {
  49     if ( !wxChoiceBase::Create(parent, id, pos, size, style, validator, name) )
  50         return false;
  51
  52     Rect bounds ;
  53     Str255 title ;
  54
  55     MacPreControlCreate( parent , id ,  wxEmptyString , pos , size ,style, validator , name , &bounds , title ) ;
  56     m_macControl = ::NewControl( MAC_WXHWND(parent->MacGetRootWindow()) , &bounds , title , false , 0 , -12345 , 0 ,
  57         kControlPopupButtonProc + kControlPopupFixedWidthVariant , (long) this ) ;
  58
  59     m_macPopUpMenuHandle =  NewUniqueMenu() ;
  60     SetControlData( (ControlHandle) m_macControl , kControlNoPart , kControlPopupButtonMenuHandleTag , sizeof( MenuHandle ) , (char*) &m_macPopUpMenuHandle) ;
  61     SetControl32BitMinimum( (ControlHandle) m_macControl , 0 ) ;
  62     SetControl32BitMaximum( (ControlHandle) m_macControl , 0) ;
  63     if ( n > 0 )
  64         SetControl32BitValue( (ControlHandle) m_macControl , 1 ) ;
  65     MacPostControlCreate() ;
  66     for ( int i = 0; i < n; i++ )
  67     {
  68         Append(choices[i]);
  69     }
  70     return TRUE;
  71 }
  72
  73 // ----------------------------------------------------------------------------
  74 // adding/deleting items to/from the list
  75 // ----------------------------------------------------------------------------
  76 int wxChoice::DoAppend(const wxString& item)
  77 {
  78     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item);
  79     m_strings.Add( item ) ;
  80     m_datas.Add( NULL ) ;
  81     int index = m_strings.GetCount()  - 1  ;
  82     DoSetItemClientData( index , NULL ) ;
  83     SetControl32BitMaximum( (ControlHandle) m_macControl , GetCount()) ;
  84     return index ;
  85 }
  86
  87 int wxChoice::DoInsert(const wxString& item, int pos)
  88 {
  89     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
  90     wxCHECK_MSG((pos>=0) && (pos<=GetCount()), -1, wxT("invalid index"));
  91
  92     if (pos == GetCount())
  93         return DoAppend(item);
  94
  95     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item);
  96     m_strings.Insert( item, pos ) ;
  97     m_datas.Insert( NULL, pos ) ;
  98     DoSetItemClientData( pos , NULL ) ;
  99     SetControl32BitMaximum( (ControlHandle) m_macControl , pos) ;
 100     return pos ;
 101 }
 102
 103 void wxChoice::Delete(int n)
 104 {
 105     wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
 106     if ( HasClientObjectData() )
 107     {
 108         delete GetClientObject(n);
 109     }
 110     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1) ;
 111     m_strings.RemoveAt( n ) ;
 112     m_datas.RemoveAt( n ) ;
 113     SetControl32BitMaximum( (ControlHandle) m_macControl , GetCount()) ;
 114 }
 115
 116 void wxChoice::Clear()
 117 {
 118     FreeData();
 119     for ( int i = 0 ; i < GetCount() ; i++ )
 120     {
 121         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
 122     }
 123     m_strings.Empty() ;
 124     m_datas.Empty() ;
 125     SetControl32BitMaximum( (ControlHandle) m_macControl , 0 ) ;
 126 }
 127
 128 void wxChoice::FreeData()
 129 {
 130     if ( HasClientObjectData() )
 131     {
 132         size_t count = GetCount();
 133         for ( size_t n = 0; n < count; n++ )
 134         {
 135             delete GetClientObject(n);
 136         }
 137     }
 138 }
 139
 140 // ----------------------------------------------------------------------------
 141 // selection
 142 // ----------------------------------------------------------------------------
 143 int wxChoice::GetSelection() const
 144 {
 145     return GetControl32BitValue( (ControlHandle) m_macControl ) -1 ;
 146 }
 147
 148 void wxChoice::SetSelection(int n)
 149 {
 150     SetControl32BitValue( (ControlHandle) m_macControl , n + 1 ) ;
 151 }
 152
 153 // ----------------------------------------------------------------------------
 154 // string list functions
 155 // ----------------------------------------------------------------------------
 156
 157 int wxChoice::GetCount() const
 158 {
 159     return m_strings.GetCount() ;
 160 }
 161
 162 int wxChoice::FindString(const wxString& s) const
 163 {
 164     for( int i = 0 ; i < GetCount() ; i++ )
 165     {
 166         if ( GetString( i ).IsSameAs(s, FALSE) )
 167             return i ;
 168     }
 169     return wxNOT_FOUND ;
 170 }
 171
 172 void wxChoice::SetString(int n, const wxString& s)
 173 {
 174     wxFAIL_MSG(wxT("wxChoice::SetString() not yet implemented"));
 175 #if 0 // should do this, but no Insert() so far
 176     Delete(n);
 177     Insert(n + 1, s);
 178 #endif
 179 }
 180
 181 wxString wxChoice::GetString(int n) const
 182 {
 183     wxCHECK_MSG( n >= 0 && (size_t)n < m_strings.GetCount(), _T(""),
 184                     _T("wxChoice::GetString(): invalid index") );
 185
 186     return m_strings[n] ;
 187 }
 188
 189 // ----------------------------------------------------------------------------
 190 // client data
 191 // ----------------------------------------------------------------------------
 192 void wxChoice::DoSetItemClientData( int n, void* clientData )
 193 {
 194     wxCHECK_RET( n >= 0 && (size_t)n < m_datas.GetCount(),
 195                  wxT("invalid index in wxChoice::SetClientData") );
 196
 197     m_datas[n] = (char*) clientData ;
 198 }
 199
 200 void *wxChoice::DoGetItemClientData(int n) const
 201 {
 202     wxCHECK_MSG( n >= 0 && (size_t)n < m_datas.GetCount(), NULL,
 203                  wxT("invalid index in wxChoice::GetClientData") );
 204     return (void *)m_datas[n];
 205 }
 206
 207 void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
 208 {
 209     DoSetItemClientData(n, clientData);
 210 }
 211
 212 wxClientData* wxChoice::DoGetItemClientObject( int n ) const
 213 {
 214     return (wxClientData *)DoGetItemClientData(n);
 215 }
 216
 217 void wxChoice::MacHandleControlClick( WXWidget control , wxInt16 controlpart , bool WXUNUSED(mouseStillDown))
 218 {
 219     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId );
 220     int n = GetSelection();
 221     // actually n should be made sure by the os to be a valid selection, but ...
 222     if ( n > -1 )
 223     {
 224         event.SetInt( n );
 225         event.SetString(GetStringSelection());
 226         event.SetEventObject(this);
 227         if ( HasClientObjectData() )
 228             event.SetClientObject( GetClientObject(n) );
 229         else if ( HasClientUntypedData() )
 230             event.SetClientData( GetClientData(n) );
 231         ProcessCommand(event);
 232     }
 233 }
 234
 235 wxSize wxChoice::DoGetBestSize() const
 236 {
 237     int lbWidth = GetCount() > 0 ? 20 : 100;  // some defaults
 238     int lbHeight = 20;
 239     int wLine;
 240 #if TARGET_CARBON
 241     long metric ;
 242     GetThemeMetric(kThemeMetricPopupButtonHeight , &metric );
 243     lbHeight = metric ;
 244 #endif
 245     {
 246         wxMacPortStateHelper st( UMAGetWindowPort( (WindowRef) MacGetRootWindow() ) ) ;
 247         wxFontRefData * font = (wxFontRefData*) m_font.GetRefData() ;
 248         if ( font )
 249         {
 250             ::TextFont( font->m_macFontNum ) ;
 251             ::TextSize( short(font->m_macFontSize) ) ;
 252             ::TextFace( font->m_macFontStyle ) ;
 253         }
 254         else
 255         {
 256             ::TextFont( kFontIDMonaco ) ;
 257             ::TextSize( 9  );
 258             ::TextFace( 0 ) ;
 259         }
 260         // Find the widest line
 261         for(int i = 0; i < GetCount(); i++) {
 262             wxString str(GetString(i));
 263         #if wxUSE_UNICODE
 264             Point bounds={0,0} ;
 265             SInt16 baseline ;
 266             ::GetThemeTextDimensions( wxMacCFStringHolder( str ) ,
 267                 kThemeCurrentPortFont,
 268                 kThemeStateActive,
 269                 false,
 270                 &bounds,
 271                 &baseline );
 272             wLine = bounds.h ;
 273         #else
 274             wxCharBuffer text = wxMacStringToCString( str ) ;
 275             wLine = ::TextWidth( text , 0 , strlen(text) ) ;
 276         #endif
 277             lbWidth = wxMax(lbWidth, wLine);
 278         }
 279         // Add room for the popup arrow
 280         lbWidth += 2 * lbHeight ;
 281         // And just a bit more
 282         int cx = ::TextWidth( "X" , 0 , 1 ) ;
 283         lbWidth += cx ;
 284
 285     }
 286     return wxSize(lbWidth, lbHeight);
 287 }