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 #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     Rect bounds ;
  50     Str255 title ;
  51
  52     MacPreControlCreate( parent , id ,  wxEmptyString , pos , size ,style, validator , name , &bounds , title ) ;
  53     m_macControl = ::NewControl( MAC_WXHWND(parent->MacGetRootWindow()) , &bounds , title , false , 0 , -12345 , 0 ,
  54         kControlPopupButtonProc + kControlPopupFixedWidthVariant , (long) this ) ;
  55
  56     m_macPopUpMenuHandle =  NewUniqueMenu() ;
  57     SetControlData( (ControlHandle) m_macControl , kControlNoPart , kControlPopupButtonMenuHandleTag , sizeof( MenuHandle ) , (char*) &m_macPopUpMenuHandle) ;
  58     SetControl32BitMinimum( (ControlHandle) m_macControl , 0 ) ;
  59     SetControl32BitMaximum( (ControlHandle) m_macControl , 0) ;
  60     if ( n > 0 )
  61         SetControl32BitValue( (ControlHandle) m_macControl , 1 ) ;
  62     MacPostControlCreate() ;
  63     for ( int i = 0; i < n; i++ )
  64     {
  65         Append(choices[i]);
  66     }
  67     return TRUE;
  68 }
  69
  70 // ----------------------------------------------------------------------------
  71 // adding/deleting items to/from the list
  72 // ----------------------------------------------------------------------------
  73 int wxChoice::DoAppend(const wxString& item)
  74 {
  75     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item);
  76     m_strings.Add( item ) ;
  77     m_datas.Add( NULL ) ;
  78     int index = m_strings.GetCount()  - 1  ;
  79     DoSetItemClientData( index , NULL ) ;
  80     SetControl32BitMaximum( (ControlHandle) m_macControl , GetCount()) ;
  81     return index ;
  82 }
  83
  84 void wxChoice::Delete(int n)
  85 {
  86     wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
  87     if ( HasClientObjectData() )
  88     {
  89         delete GetClientObject(n);
  90     }
  91     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1) ;
  92     m_strings.Remove( n ) ;
  93     m_datas.RemoveAt( n ) ;
  94     SetControl32BitMaximum( (ControlHandle) m_macControl , GetCount()) ;
  95 }
  96
  97 void wxChoice::Clear()
  98 {
  99     FreeData();
 100     for ( int i = 0 ; i < GetCount() ; i++ )
 101     {
 102         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
 103     }
 104     m_strings.Empty() ;
 105     m_datas.Empty() ;
 106     SetControl32BitMaximum( (ControlHandle) m_macControl , 0 ) ;
 107 }
 108
 109 void wxChoice::FreeData()
 110 {
 111     if ( HasClientObjectData() )
 112     {
 113         size_t count = GetCount();
 114         for ( size_t n = 0; n < count; n++ )
 115         {
 116             delete GetClientObject(n);
 117         }
 118     }
 119 }
 120
 121 // ----------------------------------------------------------------------------
 122 // selection
 123 // ----------------------------------------------------------------------------
 124 int wxChoice::GetSelection() const
 125 {
 126     return GetControl32BitValue( (ControlHandle) m_macControl ) -1 ;
 127 }
 128
 129 void wxChoice::SetSelection(int n)
 130 {
 131     SetControl32BitValue( (ControlHandle) m_macControl , n + 1 ) ;
 132 }
 133
 134 // ----------------------------------------------------------------------------
 135 // string list functions
 136 // ----------------------------------------------------------------------------
 137
 138 int wxChoice::GetCount() const
 139 {
 140     return m_strings.GetCount() ;
 141 }
 142
 143 int wxChoice::FindString(const wxString& s) const
 144 {
 145     for( int i = 0 ; i < GetCount() ; i++ )
 146     {
 147         if ( GetString( i ).IsSameAs(s, FALSE) )
 148             return i ;
 149     }
 150     return wxNOT_FOUND ;
 151 }
 152
 153 void wxChoice::SetString(int n, const wxString& s)
 154 {
 155     wxFAIL_MSG(wxT("wxChoice::SetString() not yet implemented"));
 156 #if 0 // should do this, but no Insert() so far
 157     Delete(n);
 158     Insert(n + 1, s);
 159 #endif
 160 }
 161
 162 wxString wxChoice::GetString(int n) const
 163 {
 164     return m_strings[n] ;
 165 }
 166 // ----------------------------------------------------------------------------
 167 // client data
 168 // ----------------------------------------------------------------------------
 169 void wxChoice::DoSetItemClientData( int n, void* clientData )
 170 {
 171     wxCHECK_RET( n >= 0 && (size_t)n < m_datas.GetCount(),
 172                  wxT("invalid index in wxChoice::SetClientData") );
 173
 174     m_datas[n] = (char*) clientData ;
 175 }
 176
 177 void *wxChoice::DoGetItemClientData(int n) const
 178 {
 179     wxCHECK_MSG( n >= 0 && (size_t)n < m_datas.GetCount(), NULL,
 180                  wxT("invalid index in wxChoice::GetClientData") );
 181     return (void *)m_datas[n];
 182 }
 183
 184 void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
 185 {
 186     DoSetItemClientData(n, clientData);
 187 }
 188
 189 wxClientData* wxChoice::DoGetItemClientObject( int n ) const
 190 {
 191     return (wxClientData *)DoGetItemClientData(n);
 192 }
 193
 194 void wxChoice::MacHandleControlClick( WXWidget control , wxInt16 controlpart )
 195 {
 196     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId );
 197     int n = GetSelection();
 198     // actually n should be made sure by the os to be a valid selection, but ...
 199     if ( n > -1 )
 200     {
 201         event.SetInt( n );
 202         event.SetString(GetStringSelection());
 203         event.SetEventObject(this);
 204         if ( HasClientObjectData() )
 205             event.SetClientObject( GetClientObject(n) );
 206         else if ( HasClientUntypedData() )
 207             event.SetClientData( GetClientData(n) );
 208         ProcessCommand(event);
 209     }
 210 }
 211
 212 wxSize wxChoice::DoGetBestSize() const
 213 {
 214     int lbWidth = GetCount() > 0 ? 20 : 100;  // some defaults
 215     int lbHeight = 20;
 216     int wLine;
 217 #if TARGET_CARBON
 218     long metric ;
 219     GetThemeMetric(kThemeMetricPopupButtonHeight , &metric );
 220     lbHeight = metric ;
 221 #endif
 222     {
 223         wxMacPortStateHelper st( UMAGetWindowPort( (WindowRef) MacGetRootWindow() ) ) ;
 224          Rect drawRect ;
 225         wxFontRefData * font = (wxFontRefData*) m_font.GetRefData() ;
 226         if ( font )
 227         {
 228             ::TextFont( font->m_macFontNum ) ;
 229             ::TextSize( short(font->m_macFontSize) ) ;
 230             ::TextFace( font->m_macFontStyle ) ;
 231         }
 232         else
 233         {
 234             ::TextFont( kFontIDMonaco ) ;
 235             ::TextSize( 9  );
 236             ::TextFace( 0 ) ;
 237         }
 238         // Find the widest line
 239         for(int i = 0; i < GetCount(); i++) {
 240             wxString str(GetString(i));
 241             wLine = ::TextWidth( str.c_str() , 0 , str.Length() ) ;
 242             lbWidth = wxMax(lbWidth, wLine);
 243         }
 244         // Add room for the popup arrow
 245         lbWidth += 2 * lbHeight ;
 246         // And just a bit more
 247         int cy = 12 ;
 248         int cx = ::TextWidth( "X" , 0 , 1 ) ;
 249         lbWidth += cx ;
 250
 251     }
 252     return wxSize(lbWidth, lbHeight);
 253 }