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
  70     m_peer = new wxMacControl() ;
  71     verify_noerr ( CreatePopupButtonControl( MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds , CFSTR("") ,
  72         -12345 , false /* no variable width */ , 0 , 0 , 0 , *m_peer ) );
  73
  74
  75     m_macPopUpMenuHandle =  NewUniqueMenu() ;
  76     m_peer->SetData<MenuHandle>( kControlNoPart , kControlPopupButtonMenuHandleTag , (MenuHandle) m_macPopUpMenuHandle ) ;
  77     m_peer->SetValueAndRange( n > 0 ? 1 : 0 , 0 , 0 ) ;
  78     MacPostControlCreate(pos,size) ;
  79     // TODO wxCB_SORT
  80     for ( int i = 0; i < n; i++ )
  81     {
  82         Append(choices[i]);
  83     }
  84     SetBestSize(size);   // Needed because it is a wxControlWithItems
  85     return TRUE;
  86 }
  87
  88 // ----------------------------------------------------------------------------
  89 // adding/deleting items to/from the list
  90 // ----------------------------------------------------------------------------
  91 int wxChoice::DoAppend(const wxString& item)
  92 {
  93     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item, m_font.GetEncoding() );
  94     m_strings.Add( item ) ;
  95     m_datas.Add( NULL ) ;
  96     int index = m_strings.GetCount()  - 1  ;
  97     DoSetItemClientData( index , NULL ) ;
  98     m_peer->SetMaximum( GetCount() ) ;
  99     return index ;
 100 }
 101
 102 int wxChoice::DoInsert(const wxString& item, int pos)
 103 {
 104     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
 105     wxCHECK_MSG((pos>=0) && (pos<=GetCount()), -1, wxT("invalid index"));
 106
 107     if (pos == GetCount())
 108         return DoAppend(item);
 109
 110     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item, m_font.GetEncoding() );
 111     m_strings.Insert( item, pos ) ;
 112     m_datas.Insert( NULL, pos ) ;
 113     DoSetItemClientData( pos , NULL ) ;
 114     m_peer->SetMaximum( GetCount() ) ;
 115     return pos ;
 116 }
 117
 118 void wxChoice::Delete(int n)
 119 {
 120     wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
 121     if ( HasClientObjectData() )
 122     {
 123         delete GetClientObject(n);
 124     }
 125     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1) ;
 126     m_strings.RemoveAt( n ) ;
 127     m_datas.RemoveAt( n ) ;
 128     m_peer->SetMaximum( GetCount() ) ;
 129 }
 130
 131 void wxChoice::Clear()
 132 {
 133     FreeData();
 134     for ( int i = 0 ; i < GetCount() ; i++ )
 135     {
 136         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
 137     }
 138     m_strings.Empty() ;
 139     m_datas.Empty() ;
 140     m_peer->SetMaximum( 0 ) ;
 141 }
 142
 143 void wxChoice::FreeData()
 144 {
 145     if ( HasClientObjectData() )
 146     {
 147         size_t count = GetCount();
 148         for ( size_t n = 0; n < count; n++ )
 149         {
 150             delete GetClientObject(n);
 151         }
 152     }
 153 }
 154
 155 // ----------------------------------------------------------------------------
 156 // selection
 157 // ----------------------------------------------------------------------------
 158 int wxChoice::GetSelection() const
 159 {
 160     return m_peer->GetValue() -1 ;
 161 }
 162
 163 void wxChoice::SetSelection(int n)
 164 {
 165     m_peer->SetValue( n + 1 ) ;
 166 }
 167
 168 // ----------------------------------------------------------------------------
 169 // string list functions
 170 // ----------------------------------------------------------------------------
 171
 172 int wxChoice::GetCount() const
 173 {
 174     return m_strings.GetCount() ;
 175 }
 176
 177 int wxChoice::FindString(const wxString& s) const
 178 {
 179     for( int i = 0 ; i < GetCount() ; i++ )
 180     {
 181         if ( GetString( i ).IsSameAs(s, FALSE) )
 182             return i ;
 183     }
 184     return wxNOT_FOUND ;
 185 }
 186
 187 void wxChoice::SetString(int n, const wxString& s)
 188 {
 189     wxFAIL_MSG(wxT("wxChoice::SetString() not yet implemented"));
 190 #if 0 // should do this, but no Insert() so far
 191     Delete(n);
 192     Insert(n + 1, s);
 193 #endif
 194 }
 195
 196 wxString wxChoice::GetString(int n) const
 197 {
 198     wxCHECK_MSG( n >= 0 && (size_t)n < m_strings.GetCount(), _T(""),
 199                     _T("wxChoice::GetString(): invalid index") );
 200
 201     return m_strings[n] ;
 202 }
 203
 204 // ----------------------------------------------------------------------------
 205 // client data
 206 // ----------------------------------------------------------------------------
 207 void wxChoice::DoSetItemClientData( int n, void* clientData )
 208 {
 209     wxCHECK_RET( n >= 0 && (size_t)n < m_datas.GetCount(),
 210                  wxT("invalid index in wxChoice::SetClientData") );
 211
 212     m_datas[n] = (char*) clientData ;
 213 }
 214
 215 void *wxChoice::DoGetItemClientData(int n) const
 216 {
 217     wxCHECK_MSG( n >= 0 && (size_t)n < m_datas.GetCount(), NULL,
 218                  wxT("invalid index in wxChoice::GetClientData") );
 219     return (void *)m_datas[n];
 220 }
 221
 222 void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
 223 {
 224     DoSetItemClientData(n, clientData);
 225 }
 226
 227 wxClientData* wxChoice::DoGetItemClientObject( int n ) const
 228 {
 229     return (wxClientData *)DoGetItemClientData(n);
 230 }
 231
 232 wxInt32 wxChoice::MacControlHit(WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
 233 {
 234     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId );
 235     int n = GetSelection();
 236     // actually n should be made sure by the os to be a valid selection, but ...
 237     if ( n > -1 )
 238     {
 239         event.SetInt( n );
 240         event.SetString(GetStringSelection());
 241         event.SetEventObject(this);
 242         if ( HasClientObjectData() )
 243             event.SetClientObject( GetClientObject(n) );
 244         else if ( HasClientUntypedData() )
 245             event.SetClientData( GetClientData(n) );
 246         ProcessCommand(event);
 247     }
 248     return noErr ;
 249 }
 250
 251 wxSize wxChoice::DoGetBestSize() const
 252 {
 253     int lbWidth = GetCount() > 0 ? 20 : 100;  // some defaults
 254     int lbHeight = 20;
 255     int wLine;
 256 #if TARGET_CARBON
 257     long metric ;
 258     GetThemeMetric(kThemeMetricPopupButtonHeight , &metric );
 259     lbHeight = metric ;
 260 #endif
 261     {
 262         wxMacPortStateHelper st( UMAGetWindowPort( (WindowRef) MacGetTopLevelWindowRef() ) ) ;
 263         if ( m_font.Ok() )
 264         {
 265             ::TextFont( m_font.MacGetFontNum() ) ;
 266             ::TextSize( m_font.MacGetFontSize() ) ;
 267             ::TextFace( m_font.MacGetFontStyle() ) ;
 268         }
 269         else
 270         {
 271             ::TextFont( kFontIDMonaco ) ;
 272             ::TextSize( 9  );
 273             ::TextFace( 0 ) ;
 274         }
 275         // Find the widest line
 276         for(int i = 0; i < GetCount(); i++) {
 277             wxString str(GetString(i));
 278         #if wxUSE_UNICODE
 279             Point bounds={0,0} ;
 280             SInt16 baseline ;
 281             ::GetThemeTextDimensions( wxMacCFStringHolder( str , m_font.GetEncoding() ) ,
 282                 kThemeCurrentPortFont,
 283                 kThemeStateActive,
 284                 false,
 285                 &bounds,
 286                 &baseline );
 287             wLine = bounds.h ;
 288         #else
 289             wLine = ::TextWidth( str.c_str() , 0 , str.Length() ) ;
 290         #endif
 291             lbWidth = wxMax(lbWidth, wLine);
 292         }
 293         // Add room for the popup arrow
 294         lbWidth += 2 * lbHeight ;
 295         // And just a bit more
 296         int cx = ::TextWidth( "X" , 0 , 1 ) ;
 297         lbWidth += cx ;
 298
 299     }
 300     return wxSize(lbWidth, lbHeight);
 301 }