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     verify_noerr ( CreatePopupButtonControl( MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds , CFSTR("") ,
  71         -12345 , false /* no variable width */ , 0 , 0 , 0 , (ControlRef*) &m_macControl ) ) ;
  72
  73     m_macPopUpMenuHandle =  NewUniqueMenu() ;
  74     SetControlData( (ControlRef) m_macControl , kControlNoPart , kControlPopupButtonMenuHandleTag , sizeof( MenuHandle ) , (char*) &m_macPopUpMenuHandle) ;
  75     SetControl32BitMinimum( (ControlRef) m_macControl , 0 ) ;
  76     SetControl32BitMaximum( (ControlRef) m_macControl , 0) ;
  77     if ( n > 0 )
  78         SetControl32BitValue( (ControlRef) m_macControl , 1 ) ;
  79     MacPostControlCreate(pos,size) ;
  80     // TODO wxCB_SORT
  81     for ( int i = 0; i < n; i++ )
  82     {
  83         Append(choices[i]);
  84     }
  85     SetBestSize(size);   // Needed because it is a wxControlWithItems
  86     return TRUE;
  87 }
  88
  89 // ----------------------------------------------------------------------------
  90 // adding/deleting items to/from the list
  91 // ----------------------------------------------------------------------------
  92 int wxChoice::DoAppend(const wxString& item)
  93 {
  94     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item, m_font.GetEncoding() );
  95     m_strings.Add( item ) ;
  96     m_datas.Add( NULL ) ;
  97     int index = m_strings.GetCount()  - 1  ;
  98     DoSetItemClientData( index , NULL ) ;
  99     SetControl32BitMaximum( (ControlRef) m_macControl , GetCount()) ;
 100     return index ;
 101 }
 102
 103 int wxChoice::DoInsert(const wxString& item, int pos)
 104 {
 105     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
 106     wxCHECK_MSG((pos>=0) && (pos<=GetCount()), -1, wxT("invalid index"));
 107
 108     if (pos == GetCount())
 109         return DoAppend(item);
 110
 111     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item, m_font.GetEncoding() );
 112     m_strings.Insert( item, pos ) ;
 113     m_datas.Insert( NULL, pos ) ;
 114     DoSetItemClientData( pos , NULL ) ;
 115     SetControl32BitMaximum( (ControlRef) m_macControl , pos) ;
 116     return pos ;
 117 }
 118
 119 void wxChoice::Delete(int n)
 120 {
 121     wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
 122     if ( HasClientObjectData() )
 123     {
 124         delete GetClientObject(n);
 125     }
 126     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1) ;
 127     m_strings.RemoveAt( n ) ;
 128     m_datas.RemoveAt( n ) ;
 129     SetControl32BitMaximum( (ControlRef) m_macControl , GetCount()) ;
 130 }
 131
 132 void wxChoice::Clear()
 133 {
 134     FreeData();
 135     for ( int i = 0 ; i < GetCount() ; i++ )
 136     {
 137         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
 138     }
 139     m_strings.Empty() ;
 140     m_datas.Empty() ;
 141     SetControl32BitMaximum( (ControlRef) m_macControl , 0 ) ;
 142 }
 143
 144 void wxChoice::FreeData()
 145 {
 146     if ( HasClientObjectData() )
 147     {
 148         size_t count = GetCount();
 149         for ( size_t n = 0; n < count; n++ )
 150         {
 151             delete GetClientObject(n);
 152         }
 153     }
 154 }
 155
 156 // ----------------------------------------------------------------------------
 157 // selection
 158 // ----------------------------------------------------------------------------
 159 int wxChoice::GetSelection() const
 160 {
 161     return GetControl32BitValue( (ControlRef) m_macControl ) -1 ;
 162 }
 163
 164 void wxChoice::SetSelection(int n)
 165 {
 166     SetControl32BitValue( (ControlRef) m_macControl , n + 1 ) ;
 167 }
 168
 169 // ----------------------------------------------------------------------------
 170 // string list functions
 171 // ----------------------------------------------------------------------------
 172
 173 int wxChoice::GetCount() const
 174 {
 175     return m_strings.GetCount() ;
 176 }
 177
 178 int wxChoice::FindString(const wxString& s) const
 179 {
 180     for( int i = 0 ; i < GetCount() ; i++ )
 181     {
 182         if ( GetString( i ).IsSameAs(s, FALSE) )
 183             return i ;
 184     }
 185     return wxNOT_FOUND ;
 186 }
 187
 188 void wxChoice::SetString(int n, const wxString& s)
 189 {
 190     wxFAIL_MSG(wxT("wxChoice::SetString() not yet implemented"));
 191 #if 0 // should do this, but no Insert() so far
 192     Delete(n);
 193     Insert(n + 1, s);
 194 #endif
 195 }
 196
 197 wxString wxChoice::GetString(int n) const
 198 {
 199     wxCHECK_MSG( n >= 0 && (size_t)n < m_strings.GetCount(), _T(""),
 200                     _T("wxChoice::GetString(): invalid index") );
 201
 202     return m_strings[n] ;
 203 }
 204
 205 // ----------------------------------------------------------------------------
 206 // client data
 207 // ----------------------------------------------------------------------------
 208 void wxChoice::DoSetItemClientData( int n, void* clientData )
 209 {
 210     wxCHECK_RET( n >= 0 && (size_t)n < m_datas.GetCount(),
 211                  wxT("invalid index in wxChoice::SetClientData") );
 212
 213     m_datas[n] = (char*) clientData ;
 214 }
 215
 216 void *wxChoice::DoGetItemClientData(int n) const
 217 {
 218     wxCHECK_MSG( n >= 0 && (size_t)n < m_datas.GetCount(), NULL,
 219                  wxT("invalid index in wxChoice::GetClientData") );
 220     return (void *)m_datas[n];
 221 }
 222
 223 void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
 224 {
 225     DoSetItemClientData(n, clientData);
 226 }
 227
 228 wxClientData* wxChoice::DoGetItemClientObject( int n ) const
 229 {
 230     return (wxClientData *)DoGetItemClientData(n);
 231 }
 232
 233 wxInt32 wxChoice::MacControlHit(WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
 234 {
 235     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId );
 236     int n = GetSelection();
 237     // actually n should be made sure by the os to be a valid selection, but ...
 238     if ( n > -1 )
 239     {
 240         event.SetInt( n );
 241         event.SetString(GetStringSelection());
 242         event.SetEventObject(this);
 243         if ( HasClientObjectData() )
 244             event.SetClientObject( GetClientObject(n) );
 245         else if ( HasClientUntypedData() )
 246             event.SetClientData( GetClientData(n) );
 247         ProcessCommand(event);
 248     }
 249     return noErr ;
 250 }
 251
 252 wxSize wxChoice::DoGetBestSize() const
 253 {
 254     int lbWidth = GetCount() > 0 ? 20 : 100;  // some defaults
 255     int lbHeight = 20;
 256     int wLine;
 257 #if TARGET_CARBON
 258     long metric ;
 259     GetThemeMetric(kThemeMetricPopupButtonHeight , &metric );
 260     lbHeight = metric ;
 261 #endif
 262     {
 263         wxMacPortStateHelper st( UMAGetWindowPort( (WindowRef) MacGetTopLevelWindowRef() ) ) ;
 264         if ( m_font.Ok() )
 265         {
 266             ::TextFont( m_font.MacGetFontNum() ) ;
 267             ::TextSize( m_font.MacGetFontSize() ) ;
 268             ::TextFace( m_font.MacGetFontStyle() ) ;
 269         }
 270         else
 271         {
 272             ::TextFont( kFontIDMonaco ) ;
 273             ::TextSize( 9  );
 274             ::TextFace( 0 ) ;
 275         }
 276         // Find the widest line
 277         for(int i = 0; i < GetCount(); i++) {
 278             wxString str(GetString(i));
 279         #if wxUSE_UNICODE
 280             Point bounds={0,0} ;
 281             SInt16 baseline ;
 282             ::GetThemeTextDimensions( wxMacCFStringHolder( str , m_font.GetEncoding() ) ,
 283                 kThemeCurrentPortFont,
 284                 kThemeStateActive,
 285                 false,
 286                 &bounds,
 287                 &baseline );
 288             wLine = bounds.h ;
 289         #else
 290             wLine = ::TextWidth( str.c_str() , 0 , str.Length() ) ;
 291         #endif
 292             lbWidth = wxMax(lbWidth, wLine);
 293         }
 294         // Add room for the popup arrow
 295         lbWidth += 2 * lbHeight ;
 296         // And just a bit more
 297         int cx = ::TextWidth( "X" , 0 , 1 ) ;
 298         lbWidth += cx ;
 299
 300     }
 301     return wxSize(lbWidth, lbHeight);
 302 }