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     if ( style & wxCB_SORT )
  84     {
  85         m_strings = wxArrayString(1) ; // autosort
  86     }
  87
  88     for ( int i = 0; i < n; i++ )
  89     {
  90         Append(choices[i]);
  91     }
  92     SetBestSize(size);   // Needed because it is a wxControlWithItems
  93     return true;
  94 }
  95
  96 // ----------------------------------------------------------------------------
  97 // adding/deleting items to/from the list
  98 // ----------------------------------------------------------------------------
  99 int wxChoice::DoAppend(const wxString& item)
 100 {
 101     size_t index = m_strings.Add( item ) ;
 102     m_datas.Insert( NULL , index ) ;
 103     UMAInsertMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item, m_font.GetEncoding() , index );
 104     DoSetItemClientData( index , NULL ) ;
 105     m_peer->SetMaximum( GetCount() ) ;
 106     return index ;
 107 }
 108
 109 int wxChoice::DoInsert(const wxString& item, int pos)
 110 {
 111     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
 112     wxCHECK_MSG((pos>=0) && (pos<=GetCount()), -1, wxT("invalid index"));
 113
 114     if (pos == GetCount())
 115         return DoAppend(item);
 116
 117     UMAInsertMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item, m_font.GetEncoding() , pos );
 118     m_strings.Insert( item, pos ) ;
 119     m_datas.Insert( NULL, pos ) ;
 120     DoSetItemClientData( pos , NULL ) ;
 121     m_peer->SetMaximum( GetCount() ) ;
 122     return pos ;
 123 }
 124
 125 void wxChoice::Delete(int n)
 126 {
 127     wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
 128     if ( HasClientObjectData() )
 129     {
 130         delete GetClientObject(n);
 131     }
 132     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1) ;
 133     m_strings.RemoveAt( n ) ;
 134     m_datas.RemoveAt( n ) ;
 135     m_peer->SetMaximum( GetCount() ) ;
 136 }
 137
 138 void wxChoice::Clear()
 139 {
 140     FreeData();
 141     for ( int i = 0 ; i < GetCount() ; i++ )
 142     {
 143         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
 144     }
 145     m_strings.Empty() ;
 146     m_datas.Empty() ;
 147     m_peer->SetMaximum( 0 ) ;
 148 }
 149
 150 void wxChoice::FreeData()
 151 {
 152     if ( HasClientObjectData() )
 153     {
 154         size_t count = GetCount();
 155         for ( size_t n = 0; n < count; n++ )
 156         {
 157             delete GetClientObject(n);
 158         }
 159     }
 160 }
 161
 162 // ----------------------------------------------------------------------------
 163 // selection
 164 // ----------------------------------------------------------------------------
 165 int wxChoice::GetSelection() const
 166 {
 167     return m_peer->GetValue() -1 ;
 168 }
 169
 170 void wxChoice::SetSelection(int n)
 171 {
 172     m_peer->SetValue( n + 1 ) ;
 173 }
 174
 175 // ----------------------------------------------------------------------------
 176 // string list functions
 177 // ----------------------------------------------------------------------------
 178
 179 int wxChoice::GetCount() const
 180 {
 181     return m_strings.GetCount() ;
 182 }
 183
 184 int wxChoice::FindString(const wxString& s) const
 185 {
 186     return m_strings.Index( s , true , false) ;
 187 }
 188
 189 void wxChoice::SetString(int n, const wxString& s)
 190 {
 191     m_strings[n] = s ;
 192     // apple menu pos is 1-based
 193     UMASetMenuItemText( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1 , s , wxFont::GetDefaultEncoding() ) ;
 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 }
 302
 303 #endif // wxUSE_CHOICE