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            int n, const wxString choices[],
  45            long style,
  46            const wxValidator& validator,
  47            const wxString& name)
  48 {
  49     Rect bounds ;
  50     Str255 title ;
  51
  52     MacPreControlCreate( parent , id ,  wxEmptyString , pos , size ,style, validator , name , &bounds , title ) ;
  53     m_macControl = ::NewControl( MAC_WXHWND(parent->MacGetRootWindow()) , &bounds , title , false , 0 , -12345 , 0 ,
  54         kControlPopupButtonProc + kControlPopupFixedWidthVariant , (long) this ) ;
  55
  56     m_macPopUpMenuHandle =  NewUniqueMenu() ;
  57     SetControlData( (ControlHandle) m_macControl , kControlNoPart , kControlPopupButtonMenuHandleTag , sizeof( MenuHandle ) , (char*) &m_macPopUpMenuHandle) ;
  58     SetControl32BitMinimum( (ControlHandle) m_macControl , 0 ) ;
  59     SetControl32BitMaximum( (ControlHandle) m_macControl , 0) ;
  60     if ( n > 0 )
  61         SetControl32BitValue( (ControlHandle) m_macControl , 1 ) ;
  62     MacPostControlCreate() ;
  63     for ( int i = 0; i < n; i++ )
  64     {
  65         Append(choices[i]);
  66     }
  67     return TRUE;
  68 }
  69
  70 // ----------------------------------------------------------------------------
  71 // adding/deleting items to/from the list
  72 // ----------------------------------------------------------------------------
  73 int wxChoice::DoAppend(const wxString& item)
  74 {
  75     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item);
  76     m_strings.Add( item ) ;
  77     m_datas.Add( NULL ) ;
  78     int index = m_strings.GetCount()  - 1  ;
  79     DoSetItemClientData( index , NULL ) ;
  80     SetControl32BitMaximum( (ControlHandle) m_macControl , GetCount()) ;
  81     return index ;
  82 }
  83
  84 int wxChoice::DoInsert(const wxString& item, int pos)
  85 {
  86     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
  87     wxCHECK_MSG((pos>=0) && (pos<=GetCount()), -1, wxT("invalid index"));
  88
  89     if (pos == GetCount())
  90         return DoAppend(item);
  91
  92     UMAAppendMenuItem(MAC_WXHMENU( m_macPopUpMenuHandle ) , item);
  93     m_strings.Insert( item, pos ) ;
  94     m_datas.Insert( NULL, pos ) ;
  95     DoSetItemClientData( pos , NULL ) ;
  96     SetControl32BitMaximum( (ControlHandle) m_macControl , pos) ;
  97     return pos ;
  98 }
  99
 100 void wxChoice::Delete(int n)
 101 {
 102     wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
 103     if ( HasClientObjectData() )
 104     {
 105         delete GetClientObject(n);
 106     }
 107     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1) ;
 108     m_strings.Remove( n ) ;
 109     m_datas.RemoveAt( n ) ;
 110     SetControl32BitMaximum( (ControlHandle) m_macControl , GetCount()) ;
 111 }
 112
 113 void wxChoice::Clear()
 114 {
 115     FreeData();
 116     for ( int i = 0 ; i < GetCount() ; i++ )
 117     {
 118         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
 119     }
 120     m_strings.Empty() ;
 121     m_datas.Empty() ;
 122     SetControl32BitMaximum( (ControlHandle) m_macControl , 0 ) ;
 123 }
 124
 125 void wxChoice::FreeData()
 126 {
 127     if ( HasClientObjectData() )
 128     {
 129         size_t count = GetCount();
 130         for ( size_t n = 0; n < count; n++ )
 131         {
 132             delete GetClientObject(n);
 133         }
 134     }
 135 }
 136
 137 // ----------------------------------------------------------------------------
 138 // selection
 139 // ----------------------------------------------------------------------------
 140 int wxChoice::GetSelection() const
 141 {
 142     return GetControl32BitValue( (ControlHandle) m_macControl ) -1 ;
 143 }
 144
 145 void wxChoice::SetSelection(int n)
 146 {
 147     SetControl32BitValue( (ControlHandle) m_macControl , n + 1 ) ;
 148 }
 149
 150 // ----------------------------------------------------------------------------
 151 // string list functions
 152 // ----------------------------------------------------------------------------
 153
 154 int wxChoice::GetCount() const
 155 {
 156     return m_strings.GetCount() ;
 157 }
 158
 159 int wxChoice::FindString(const wxString& s) const
 160 {
 161     for( int i = 0 ; i < GetCount() ; i++ )
 162     {
 163         if ( GetString( i ).IsSameAs(s, FALSE) )
 164             return i ;
 165     }
 166     return wxNOT_FOUND ;
 167 }
 168
 169 void wxChoice::SetString(int n, const wxString& s)
 170 {
 171     wxFAIL_MSG(wxT("wxChoice::SetString() not yet implemented"));
 172 #if 0 // should do this, but no Insert() so far
 173     Delete(n);
 174     Insert(n + 1, s);
 175 #endif
 176 }
 177
 178 wxString wxChoice::GetString(int n) const
 179 {
 180     return m_strings[n] ;
 181 }
 182 // ----------------------------------------------------------------------------
 183 // client data
 184 // ----------------------------------------------------------------------------
 185 void wxChoice::DoSetItemClientData( int n, void* clientData )
 186 {
 187     wxCHECK_RET( n >= 0 && (size_t)n < m_datas.GetCount(),
 188                  wxT("invalid index in wxChoice::SetClientData") );
 189
 190     m_datas[n] = (char*) clientData ;
 191 }
 192
 193 void *wxChoice::DoGetItemClientData(int n) const
 194 {
 195     wxCHECK_MSG( n >= 0 && (size_t)n < m_datas.GetCount(), NULL,
 196                  wxT("invalid index in wxChoice::GetClientData") );
 197     return (void *)m_datas[n];
 198 }
 199
 200 void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
 201 {
 202     DoSetItemClientData(n, clientData);
 203 }
 204
 205 wxClientData* wxChoice::DoGetItemClientObject( int n ) const
 206 {
 207     return (wxClientData *)DoGetItemClientData(n);
 208 }
 209
 210 void wxChoice::MacHandleControlClick( WXWidget control , wxInt16 controlpart )
 211 {
 212     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId );
 213     int n = GetSelection();
 214     // actually n should be made sure by the os to be a valid selection, but ...
 215     if ( n > -1 )
 216     {
 217         event.SetInt( n );
 218         event.SetString(GetStringSelection());
 219         event.SetEventObject(this);
 220         if ( HasClientObjectData() )
 221             event.SetClientObject( GetClientObject(n) );
 222         else if ( HasClientUntypedData() )
 223             event.SetClientData( GetClientData(n) );
 224         ProcessCommand(event);
 225     }
 226 }
 227
 228 wxSize wxChoice::DoGetBestSize() const
 229 {
 230     int lbWidth = GetCount() > 0 ? 20 : 100;  // some defaults
 231     int lbHeight = 20;
 232     int wLine;
 233 #if TARGET_CARBON
 234     long metric ;
 235     GetThemeMetric(kThemeMetricPopupButtonHeight , &metric );
 236     lbHeight = metric ;
 237 #endif
 238     {
 239         wxMacPortStateHelper st( UMAGetWindowPort( (WindowRef) MacGetRootWindow() ) ) ;
 240         wxFontRefData * font = (wxFontRefData*) m_font.GetRefData() ;
 241         if ( font )
 242         {
 243             ::TextFont( font->m_macFontNum ) ;
 244             ::TextSize( short(font->m_macFontSize) ) ;
 245             ::TextFace( font->m_macFontStyle ) ;
 246         }
 247         else
 248         {
 249             ::TextFont( kFontIDMonaco ) ;
 250             ::TextSize( 9  );
 251             ::TextFace( 0 ) ;
 252         }
 253         // Find the widest line
 254         for(int i = 0; i < GetCount(); i++) {
 255             wxString str(GetString(i));
 256         #if wxUSE_UNICODE
 257             Point bounds={0,0} ;
 258             SInt16 baseline ;
 259             ::GetThemeTextDimensions( wxMacCFStringHolder( str ) ,
 260                 kThemeCurrentPortFont,
 261                 kThemeStateActive,
 262                 false,
 263                 &bounds,
 264                 &baseline );
 265             wLine = bounds.h ;
 266         #else
 267             wxCharBuffer text = wxMacStringToCString( str ) ;
 268             wLine = ::TextWidth( text , 0 , strlen(text) ) ;
 269         #endif
 270             lbWidth = wxMax(lbWidth, wLine);
 271         }
 272         // Add room for the popup arrow
 273         lbWidth += 2 * lbHeight ;
 274         // And just a bit more
 275         int cx = ::TextWidth( "X" , 0 , 1 ) ;
 276         lbWidth += cx ;
 277
 278     }
 279     return wxSize(lbWidth, lbHeight);
 280 }