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            const wxArrayString& choices,
  45            long style,
  46            const wxValidator& validator,
  47            const wxString& name)
  48 {
  49     wxCArrayString chs(choices);
  50
  51     return Create(parent, id, pos, size, chs.GetCount(), chs.GetStrings(),
  52                   style, validator, name);
  53 }
  54
  55 bool wxChoice::Create(wxWindow *parent, wxWindowID id,
  56            const wxPoint& pos,
  57            const wxSize& size,
  58            int n, const wxString choices[],
  59            long style,
  60            const wxValidator& validator,
  61            const wxString& name)
  62 {
  63     m_macIsUserPane = FALSE ;
  64
  65     if ( !wxChoiceBase::Create(parent, id, pos, size, style, validator, name) )
  66         return false;
  67
  68     Rect bounds = wxMacGetBoundsForControl( this , pos , size ) ;
  69     m_macControl = (WXWidget) ::NewControl( MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds , "\p" , true , 0 , -12345 , 0 ,
  70         kControlPopupButtonProc + kControlPopupFixedWidthVariant , (long) this ) ;
  71
  72     m_macPopUpMenuHandle =  NewUniqueMenu() ;
  73     SetControlData( (ControlRef) m_macControl , kControlNoPart , kControlPopupButtonMenuHandleTag , sizeof( MenuHandle ) , (char*) &m_macPopUpMenuHandle) ;
  74     SetControl32BitMinimum( (ControlRef) m_macControl , 0 ) ;
  75     SetControl32BitMaximum( (ControlRef) m_macControl , 0) ;
  76     if ( n > 0 )
  77         SetControl32BitValue( (ControlRef) m_macControl , 1 ) ;
  78     MacPostControlCreate(pos,size) ;
  79     // TODO wxCB_SORT
  80     for ( int i = 0; i < n; i++ )
  81     {
  82         Append(choices[i]);
  83     }
  84     return TRUE;
  85 }
  86
  87 // ----------------------------------------------------------------------------
  88 // adding/deleting items to/from the list
  89 // ----------------------------------------------------------------------------
  90 int wxChoice::DoAppend(const wxString& item)
  91 {
  92     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item, m_font.GetEncoding() );
  93     m_strings.Add( item ) ;
  94     m_datas.Add( NULL ) ;
  95     int index = m_strings.GetCount()  - 1  ;
  96     DoSetItemClientData( index , NULL ) ;
  97     SetControl32BitMaximum( (ControlRef) m_macControl , GetCount()) ;
  98     return index ;
  99 }
 100
 101 int wxChoice::DoInsert(const wxString& item, int pos)
 102 {
 103     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
 104     wxCHECK_MSG((pos>=0) && (pos<=GetCount()), -1, wxT("invalid index"));
 105
 106     if (pos == GetCount())
 107         return DoAppend(item);
 108
 109     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item, m_font.GetEncoding() );
 110     m_strings.Insert( item, pos ) ;
 111     m_datas.Insert( NULL, pos ) ;
 112     DoSetItemClientData( pos , NULL ) ;
 113     SetControl32BitMaximum( (ControlRef) m_macControl , pos) ;
 114     return pos ;
 115 }
 116
 117 void wxChoice::Delete(int n)
 118 {
 119     wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
 120     if ( HasClientObjectData() )
 121     {
 122         delete GetClientObject(n);
 123     }
 124     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1) ;
 125     m_strings.RemoveAt( n ) ;
 126     m_datas.RemoveAt( n ) ;
 127     SetControl32BitMaximum( (ControlRef) m_macControl , GetCount()) ;
 128 }
 129
 130 void wxChoice::Clear()
 131 {
 132     FreeData();
 133     for ( int i = 0 ; i < GetCount() ; i++ )
 134     {
 135         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
 136     }
 137     m_strings.Empty() ;
 138     m_datas.Empty() ;
 139     SetControl32BitMaximum( (ControlRef) m_macControl , 0 ) ;
 140 }
 141
 142 void wxChoice::FreeData()
 143 {
 144     if ( HasClientObjectData() )
 145     {
 146         size_t count = GetCount();
 147         for ( size_t n = 0; n < count; n++ )
 148         {
 149             delete GetClientObject(n);
 150         }
 151     }
 152 }
 153
 154 // ----------------------------------------------------------------------------
 155 // selection
 156 // ----------------------------------------------------------------------------
 157 int wxChoice::GetSelection() const
 158 {
 159     return GetControl32BitValue( (ControlRef) m_macControl ) -1 ;
 160 }
 161
 162 void wxChoice::SetSelection(int n)
 163 {
 164     SetControl32BitValue( (ControlRef) m_macControl , n + 1 ) ;
 165 }
 166
 167 // ----------------------------------------------------------------------------
 168 // string list functions
 169 // ----------------------------------------------------------------------------
 170
 171 int wxChoice::GetCount() const
 172 {
 173     return m_strings.GetCount() ;
 174 }
 175
 176 int wxChoice::FindString(const wxString& s) const
 177 {
 178     for( int i = 0 ; i < GetCount() ; i++ )
 179     {
 180         if ( GetString( i ).IsSameAs(s, FALSE) )
 181             return i ;
 182     }
 183     return wxNOT_FOUND ;
 184 }
 185
 186 void wxChoice::SetString(int n, const wxString& s)
 187 {
 188     wxFAIL_MSG(wxT("wxChoice::SetString() not yet implemented"));
 189 #if 0 // should do this, but no Insert() so far
 190     Delete(n);
 191     Insert(n + 1, s);
 192 #endif
 193 }
 194
 195 wxString wxChoice::GetString(int n) const
 196 {
 197     wxCHECK_MSG( n >= 0 && (size_t)n < m_strings.GetCount(), _T(""),
 198                     _T("wxChoice::GetString(): invalid index") );
 199
 200     return m_strings[n] ;
 201 }
 202
 203 // ----------------------------------------------------------------------------
 204 // client data
 205 // ----------------------------------------------------------------------------
 206 void wxChoice::DoSetItemClientData( int n, void* clientData )
 207 {
 208     wxCHECK_RET( n >= 0 && (size_t)n < m_datas.GetCount(),
 209                  wxT("invalid index in wxChoice::SetClientData") );
 210
 211     m_datas[n] = (char*) clientData ;
 212 }
 213
 214 void *wxChoice::DoGetItemClientData(int n) const
 215 {
 216     wxCHECK_MSG( n >= 0 && (size_t)n < m_datas.GetCount(), NULL,
 217                  wxT("invalid index in wxChoice::GetClientData") );
 218     return (void *)m_datas[n];
 219 }
 220
 221 void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
 222 {
 223     DoSetItemClientData(n, clientData);
 224 }
 225
 226 wxClientData* wxChoice::DoGetItemClientObject( int n ) const
 227 {
 228     return (wxClientData *)DoGetItemClientData(n);
 229 }
 230
 231 void wxChoice::MacHandleControlClick( WXWidget control , wxInt16 controlpart , bool WXUNUSED(mouseStillDown))
 232 {
 233     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId );
 234     int n = GetSelection();
 235     // actually n should be made sure by the os to be a valid selection, but ...
 236     if ( n > -1 )
 237     {
 238         event.SetInt( n );
 239         event.SetString(GetStringSelection());
 240         event.SetEventObject(this);
 241         if ( HasClientObjectData() )
 242             event.SetClientObject( GetClientObject(n) );
 243         else if ( HasClientUntypedData() )
 244             event.SetClientData( GetClientData(n) );
 245         ProcessCommand(event);
 246     }
 247 }
 248
 249 wxSize wxChoice::DoGetBestSize() const
 250 {
 251     int lbWidth = GetCount() > 0 ? 20 : 100;  // some defaults
 252     int lbHeight = 20;
 253     int wLine;
 254 #if TARGET_CARBON
 255     long metric ;
 256     GetThemeMetric(kThemeMetricPopupButtonHeight , &metric );
 257     lbHeight = metric ;
 258 #endif
 259     {
 260         wxMacPortStateHelper st( UMAGetWindowPort( (WindowRef) MacGetTopLevelWindowRef() ) ) ;
 261         if ( m_font.Ok() )
 262         {
 263             ::TextFont( m_font.MacGetFontNum() ) ;
 264             ::TextSize( m_font.MacGetFontSize() ) ;
 265             ::TextFace( m_font.MacGetFontStyle() ) ;
 266         }
 267         else
 268         {
 269             ::TextFont( kFontIDMonaco ) ;
 270             ::TextSize( 9  );
 271             ::TextFace( 0 ) ;
 272         }
 273         // Find the widest line
 274         for(int i = 0; i < GetCount(); i++) {
 275             wxString str(GetString(i));
 276         #if wxUSE_UNICODE
 277             Point bounds={0,0} ;
 278             SInt16 baseline ;
 279             ::GetThemeTextDimensions( wxMacCFStringHolder( str , m_font.GetEncoding() ) ,
 280                 kThemeCurrentPortFont,
 281                 kThemeStateActive,
 282                 false,
 283                 &bounds,
 284                 &baseline );
 285             wLine = bounds.h ;
 286         #else
 287             wLine = ::TextWidth( str.c_str() , 0 , str.Length() ) ;
 288         #endif
 289             lbWidth = wxMax(lbWidth, wLine);
 290         }
 291         // Add room for the popup arrow
 292         lbWidth += 2 * lbHeight ;
 293         // And just a bit more
 294         int cx = ::TextWidth( "X" , 0 , 1 ) ;
 295         lbWidth += cx ;
 296
 297     }
 298     return wxSize(lbWidth, lbHeight);
 299 }