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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "choice.h"
  14 #endif
  15
  16 #include "wx/wxprec.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(this) ;
  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
  83     // FIXME: STL version of wxArrayString doesn't have the same args
  84 #if !wxUSE_STL
  85     if ( style & wxCB_SORT )
  86     {
  87         m_strings = wxArrayString(1) ; // autosort
  88     }
  89 #endif
  90
  91     for ( int i = 0; i < n; i++ )
  92     {
  93         Append(choices[i]);
  94     }
  95     SetBestSize(size);   // Needed because it is a wxControlWithItems
  96     return true;
  97 }
  98
  99 // ----------------------------------------------------------------------------
 100 // adding/deleting items to/from the list
 101 // ----------------------------------------------------------------------------
 102 int wxChoice::DoAppend(const wxString& item)
 103 {
 104     // FIXME: STL version of wxArrayString doesn't have the same args
 105 #if wxUSE_STL
 106     size_t index = m_strings.size();
 107     m_strings.Add( item );
 108 #else
 109     size_t index = m_strings.Add( item ) ;
 110 #endif
 111     m_datas.Insert( NULL , index ) ;
 112     UMAInsertMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item, m_font.GetEncoding() , index );
 113     DoSetItemClientData( index , NULL ) ;
 114     m_peer->SetMaximum( GetCount() ) ;
 115     return index ;
 116 }
 117
 118 int wxChoice::DoInsert(const wxString& item, int pos)
 119 {
 120     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
 121     wxCHECK_MSG((pos>=0) && (pos<=GetCount()), -1, wxT("invalid index"));
 122
 123     if (pos == GetCount())
 124         return DoAppend(item);
 125
 126     UMAInsertMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item, m_font.GetEncoding() , pos );
 127     m_strings.Insert( item, pos ) ;
 128     m_datas.Insert( NULL, pos ) ;
 129     DoSetItemClientData( pos , NULL ) ;
 130     m_peer->SetMaximum( GetCount() ) ;
 131     return pos ;
 132 }
 133
 134 void wxChoice::Delete(int n)
 135 {
 136     wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
 137     if ( HasClientObjectData() )
 138     {
 139         delete GetClientObject(n);
 140     }
 141     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1) ;
 142     m_strings.RemoveAt( n ) ;
 143     m_datas.RemoveAt( n ) ;
 144     m_peer->SetMaximum( GetCount() ) ;
 145 }
 146
 147 void wxChoice::Clear()
 148 {
 149     FreeData();
 150     for ( int i = 0 ; i < GetCount() ; i++ )
 151     {
 152         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
 153     }
 154     m_strings.Empty() ;
 155     m_datas.Empty() ;
 156     m_peer->SetMaximum( 0 ) ;
 157 }
 158
 159 void wxChoice::FreeData()
 160 {
 161     if ( HasClientObjectData() )
 162     {
 163         size_t count = GetCount();
 164         for ( size_t n = 0; n < count; n++ )
 165         {
 166             delete GetClientObject(n);
 167         }
 168     }
 169 }
 170
 171 // ----------------------------------------------------------------------------
 172 // selection
 173 // ----------------------------------------------------------------------------
 174 int wxChoice::GetSelection() const
 175 {
 176     return m_peer->GetValue() -1 ;
 177 }
 178
 179 void wxChoice::SetSelection(int n)
 180 {
 181     m_peer->SetValue( n + 1 ) ;
 182 }
 183
 184 // ----------------------------------------------------------------------------
 185 // string list functions
 186 // ----------------------------------------------------------------------------
 187
 188 int wxChoice::GetCount() const
 189 {
 190     return m_strings.GetCount() ;
 191 }
 192
 193 int wxChoice::FindString(const wxString& s) const
 194 {
 195     return m_strings.Index( s , true , false) ;
 196 }
 197
 198 void wxChoice::SetString(int n, const wxString& s)
 199 {
 200     m_strings[n] = s ;
 201     // apple menu pos is 1-based
 202     UMASetMenuItemText( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1 , s , wxFont::GetDefaultEncoding() ) ;
 203 }
 204
 205 wxString wxChoice::GetString(int n) const
 206 {
 207     wxCHECK_MSG( n >= 0 && (size_t)n < m_strings.GetCount(), _T(""),
 208                     _T("wxChoice::GetString(): invalid index") );
 209
 210     return m_strings[n] ;
 211 }
 212
 213 // ----------------------------------------------------------------------------
 214 // client data
 215 // ----------------------------------------------------------------------------
 216 void wxChoice::DoSetItemClientData( int n, void* clientData )
 217 {
 218     wxCHECK_RET( n >= 0 && (size_t)n < m_datas.GetCount(),
 219                  wxT("invalid index in wxChoice::SetClientData") );
 220
 221     m_datas[n] = (char*) clientData ;
 222 }
 223
 224 void *wxChoice::DoGetItemClientData(int n) const
 225 {
 226     wxCHECK_MSG( n >= 0 && (size_t)n < m_datas.GetCount(), NULL,
 227                  wxT("invalid index in wxChoice::GetClientData") );
 228     return (void *)m_datas[n];
 229 }
 230
 231 void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
 232 {
 233     DoSetItemClientData(n, clientData);
 234 }
 235
 236 wxClientData* wxChoice::DoGetItemClientObject( int n ) const
 237 {
 238     return (wxClientData *)DoGetItemClientData(n);
 239 }
 240
 241 wxInt32 wxChoice::MacControlHit(WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
 242 {
 243     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId );
 244     int n = GetSelection();
 245     // actually n should be made sure by the os to be a valid selection, but ...
 246     if ( n > -1 )
 247     {
 248         event.SetInt( n );
 249         event.SetString(GetStringSelection());
 250         event.SetEventObject(this);
 251         if ( HasClientObjectData() )
 252             event.SetClientObject( GetClientObject(n) );
 253         else if ( HasClientUntypedData() )
 254             event.SetClientData( GetClientData(n) );
 255         ProcessCommand(event);
 256     }
 257     return noErr ;
 258 }
 259
 260 wxSize wxChoice::DoGetBestSize() const
 261 {
 262     int lbWidth = GetCount() > 0 ? 20 : 100;  // some defaults
 263     int lbHeight = 20;
 264     int wLine;
 265 #if TARGET_CARBON
 266     long metric ;
 267     GetThemeMetric(kThemeMetricPopupButtonHeight , &metric );
 268     lbHeight = metric ;
 269 #endif
 270     {
 271         wxMacPortStateHelper st( UMAGetWindowPort( (WindowRef) MacGetTopLevelWindowRef() ) ) ;
 272         if ( m_font.Ok() )
 273         {
 274             ::TextFont( m_font.MacGetFontNum() ) ;
 275             ::TextSize( m_font.MacGetFontSize() ) ;
 276             ::TextFace( m_font.MacGetFontStyle() ) ;
 277         }
 278         else
 279         {
 280             ::TextFont( kFontIDMonaco ) ;
 281             ::TextSize( 9  );
 282             ::TextFace( 0 ) ;
 283         }
 284         // Find the widest line
 285         for(int i = 0; i < GetCount(); i++) {
 286             wxString str(GetString(i));
 287         #if wxUSE_UNICODE
 288             Point bounds={0,0} ;
 289             SInt16 baseline ;
 290             ::GetThemeTextDimensions( wxMacCFStringHolder( str , m_font.GetEncoding() ) ,
 291                 kThemeCurrentPortFont,
 292                 kThemeStateActive,
 293                 false,
 294                 &bounds,
 295                 &baseline );
 296             wLine = bounds.h ;
 297         #else
 298             wLine = ::TextWidth( str.c_str() , 0 , str.Length() ) ;
 299         #endif
 300             lbWidth = wxMax(lbWidth, wLine);
 301         }
 302         // Add room for the popup arrow
 303         lbWidth += 2 * lbHeight ;
 304         // And just a bit more
 305         int cx = ::TextWidth( "X" , 0 , 1 ) ;
 306         lbWidth += cx ;
 307
 308     }
 309     return wxSize(lbWidth, lbHeight);
 310 }
 311
 312 #endif // wxUSE_CHOICE