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     // TODO wxCB_SORT
  67     for ( int i = 0; i < n; i++ )
  68     {
  69         Append(choices[i]);
  70     }
  71     return TRUE;
  72 }
  73
  74 // ----------------------------------------------------------------------------
  75 // adding/deleting items to/from the list
  76 // ----------------------------------------------------------------------------
  77 int wxChoice::DoAppend(const wxString& item)
  78 {
  79     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item);
  80     m_strings.Add( item ) ;
  81     m_datas.Add( NULL ) ;
  82     int index = m_strings.GetCount()  - 1  ;
  83     DoSetItemClientData( index , NULL ) ;
  84     SetControl32BitMaximum( (ControlHandle) m_macControl , GetCount()) ;
  85     return index ;
  86 }
  87
  88 int wxChoice::DoInsert(const wxString& item, int pos)
  89 {
  90     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
  91     wxCHECK_MSG((pos>=0) && (pos<=GetCount()), -1, wxT("invalid index"));
  92
  93     if (pos == GetCount())
  94         return DoAppend(item);
  95
  96     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item);
  97     m_strings.Insert( item, pos ) ;
  98     m_datas.Insert( NULL, pos ) ;
  99     DoSetItemClientData( pos , NULL ) ;
 100     SetControl32BitMaximum( (ControlHandle) m_macControl , pos) ;
 101     return pos ;
 102 }
 103
 104 void wxChoice::Delete(int n)
 105 {
 106     wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
 107     if ( HasClientObjectData() )
 108     {
 109         delete GetClientObject(n);
 110     }
 111     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1) ;
 112     m_strings.RemoveAt( n ) ;
 113     m_datas.RemoveAt( n ) ;
 114     SetControl32BitMaximum( (ControlHandle) m_macControl , GetCount()) ;
 115 }
 116
 117 void wxChoice::Clear()
 118 {
 119     FreeData();
 120     for ( int i = 0 ; i < GetCount() ; i++ )
 121     {
 122         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
 123     }
 124     m_strings.Empty() ;
 125     m_datas.Empty() ;
 126     SetControl32BitMaximum( (ControlHandle) m_macControl , 0 ) ;
 127 }
 128
 129 void wxChoice::FreeData()
 130 {
 131     if ( HasClientObjectData() )
 132     {
 133         size_t count = GetCount();
 134         for ( size_t n = 0; n < count; n++ )
 135         {
 136             delete GetClientObject(n);
 137         }
 138     }
 139 }
 140
 141 // ----------------------------------------------------------------------------
 142 // selection
 143 // ----------------------------------------------------------------------------
 144 int wxChoice::GetSelection() const
 145 {
 146     return GetControl32BitValue( (ControlHandle) m_macControl ) -1 ;
 147 }
 148
 149 void wxChoice::SetSelection(int n)
 150 {
 151     SetControl32BitValue( (ControlHandle) m_macControl , n + 1 ) ;
 152 }
 153
 154 // ----------------------------------------------------------------------------
 155 // string list functions
 156 // ----------------------------------------------------------------------------
 157
 158 int wxChoice::GetCount() const
 159 {
 160     return m_strings.GetCount() ;
 161 }
 162
 163 int wxChoice::FindString(const wxString& s) const
 164 {
 165     for( int i = 0 ; i < GetCount() ; i++ )
 166     {
 167         if ( GetString( i ).IsSameAs(s, FALSE) )
 168             return i ;
 169     }
 170     return wxNOT_FOUND ;
 171 }
 172
 173 void wxChoice::SetString(int n, const wxString& s)
 174 {
 175     wxFAIL_MSG(wxT("wxChoice::SetString() not yet implemented"));
 176 #if 0 // should do this, but no Insert() so far
 177     Delete(n);
 178     Insert(n + 1, s);
 179 #endif
 180 }
 181
 182 wxString wxChoice::GetString(int n) const
 183 {
 184     wxCHECK_MSG( n >= 0 && (size_t)n < m_strings.GetCount(), _T(""),
 185                     _T("wxChoice::GetString(): invalid index") );
 186
 187     return m_strings[n] ;
 188 }
 189
 190 // ----------------------------------------------------------------------------
 191 // client data
 192 // ----------------------------------------------------------------------------
 193 void wxChoice::DoSetItemClientData( int n, void* clientData )
 194 {
 195     wxCHECK_RET( n >= 0 && (size_t)n < m_datas.GetCount(),
 196                  wxT("invalid index in wxChoice::SetClientData") );
 197
 198     m_datas[n] = (char*) clientData ;
 199 }
 200
 201 void *wxChoice::DoGetItemClientData(int n) const
 202 {
 203     wxCHECK_MSG( n >= 0 && (size_t)n < m_datas.GetCount(), NULL,
 204                  wxT("invalid index in wxChoice::GetClientData") );
 205     return (void *)m_datas[n];
 206 }
 207
 208 void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
 209 {
 210     DoSetItemClientData(n, clientData);
 211 }
 212
 213 wxClientData* wxChoice::DoGetItemClientObject( int n ) const
 214 {
 215     return (wxClientData *)DoGetItemClientData(n);
 216 }
 217
 218 void wxChoice::MacHandleControlClick( WXWidget control , wxInt16 controlpart , bool WXUNUSED(mouseStillDown))
 219 {
 220     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId );
 221     int n = GetSelection();
 222     // actually n should be made sure by the os to be a valid selection, but ...
 223     if ( n > -1 )
 224     {
 225         event.SetInt( n );
 226         event.SetString(GetStringSelection());
 227         event.SetEventObject(this);
 228         if ( HasClientObjectData() )
 229             event.SetClientObject( GetClientObject(n) );
 230         else if ( HasClientUntypedData() )
 231             event.SetClientData( GetClientData(n) );
 232         ProcessCommand(event);
 233     }
 234 }
 235
 236 wxSize wxChoice::DoGetBestSize() const
 237 {
 238     int lbWidth = GetCount() > 0 ? 20 : 100;  // some defaults
 239     int lbHeight = 20;
 240     int wLine;
 241 #if TARGET_CARBON
 242     long metric ;
 243     GetThemeMetric(kThemeMetricPopupButtonHeight , &metric );
 244     lbHeight = metric ;
 245 #endif
 246     {
 247         wxMacPortStateHelper st( UMAGetWindowPort( (WindowRef) MacGetRootWindow() ) ) ;
 248         wxFontRefData * font = (wxFontRefData*) m_font.GetRefData() ;
 249         if ( font )
 250         {
 251             ::TextFont( font->m_macFontNum ) ;
 252             ::TextSize( short(font->m_macFontSize) ) ;
 253             ::TextFace( font->m_macFontStyle ) ;
 254         }
 255         else
 256         {
 257             ::TextFont( kFontIDMonaco ) ;
 258             ::TextSize( 9  );
 259             ::TextFace( 0 ) ;
 260         }
 261         // Find the widest line
 262         for(int i = 0; i < GetCount(); i++) {
 263             wxString str(GetString(i));
 264         #if wxUSE_UNICODE
 265             Point bounds={0,0} ;
 266             SInt16 baseline ;
 267             ::GetThemeTextDimensions( wxMacCFStringHolder( str ) ,
 268                 kThemeCurrentPortFont,
 269                 kThemeStateActive,
 270                 false,
 271                 &bounds,
 272                 &baseline );
 273             wLine = bounds.h ;
 274         #else
 275             wxCharBuffer text = wxMacStringToCString( str ) ;
 276             wLine = ::TextWidth( text , 0 , strlen(text) ) ;
 277         #endif
 278             lbWidth = wxMax(lbWidth, wLine);
 279         }
 280         // Add room for the popup arrow
 281         lbWidth += 2 * lbHeight ;
 282         // And just a bit more
 283         int cx = ::TextWidth( "X" , 0 , 1 ) ;
 284         lbWidth += cx ;
 285
 286     }
 287     return wxSize(lbWidth, lbHeight);
 288 }