src/mac/choice.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        choice.cpp
   3 // Purpose:     wxChoice
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11 #ifdef __GNUG__
  12 #pragma implementation "choice.h"
  13 #endif
  14 #include "wx/defs.h"
  15 #include "wx/choice.h"
  16 #include "wx/menu.h"
  17 #include "wx/mac/uma.h"
  18 #if !USE_SHARED_LIBRARY
  19 IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
  20 #endif
  21 extern MenuHandle NewUniqueMenu() ;
  22 wxChoice::~wxChoice()
  23 {
  24         // DeleteMenu( m_macPopUpMenuId ) ;
  25         // DisposeMenu( m_macPopUpMenuHandle ) ;
  26 }
  27 bool wxChoice::Create(wxWindow *parent, wxWindowID id,
  28            const wxPoint& pos,
  29            const wxSize& size,
  30                    int n, const wxString choices[],
  31                    long style,
  32            const wxValidator& validator,
  33            const wxString& name)
  34 {
  35                 Rect bounds ;
  36                 Str255 title ;
  37
  38                 MacPreControlCreate( parent , id ,  "" , pos , size ,style, validator , name , &bounds , title ) ;
  39                 m_macControl = ::NewControl( MAC_WXHWND(parent->MacGetRootWindow()) , &bounds , title , false , 0 , -12345 , 0 ,
  40                 kControlPopupButtonProc + kControlPopupFixedWidthVariant , (long) this ) ;
  41
  42                 m_macPopUpMenuHandle =  NewUniqueMenu() ;
  43                 SetControlData( (ControlHandle) m_macControl , kControlNoPart , kControlPopupButtonMenuHandleTag , sizeof( MenuHandle ) , (char*) &m_macPopUpMenuHandle) ;
  44                 SetControl32BitMinimum( (ControlHandle) m_macControl , 0 ) ;
  45                 SetControl32BitMaximum( (ControlHandle) m_macControl , 0) ;
  46                 if ( n > 0 )
  47                         SetControl32BitValue( (ControlHandle) m_macControl , 1 ) ;
  48                 MacPostControlCreate() ;
  49     for ( int i = 0; i < n; i++ )
  50     {
  51         Append(choices[i]);
  52     }
  53         return TRUE;
  54 }
  55 // ----------------------------------------------------------------------------
  56 // adding/deleting items to/from the list
  57 // ----------------------------------------------------------------------------
  58 int wxChoice::DoAppend(const wxString& item)
  59 {
  60         Str255 label;
  61         wxMenuItem::MacBuildMenuString( label , NULL , NULL , item ,false);
  62         MacAppendMenu(MAC_WXHMENU( m_macPopUpMenuHandle ) , "\pA");
  63         SetMenuItemText(MAC_WXHMENU( m_macPopUpMenuHandle ) ,
  64             (SInt16) ::CountMenuItems(MAC_WXHMENU( m_macPopUpMenuHandle ) ), label);
  65         // was AppendMenu( MAC_WXHMENU( m_macPopUpMenuHandle ) , label ) ;
  66         m_strings.Add( item ) ;
  67         m_datas.Add( NULL ) ;
  68         int index = m_strings.GetCount()  - 1  ;
  69         DoSetItemClientData( index , NULL ) ;
  70         SetControl32BitMaximum( (ControlHandle) m_macControl , GetCount()) ;
  71         return index ;
  72 }
  73 void wxChoice::Delete(int n)
  74 {
  75     wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
  76     if ( HasClientObjectData() )
  77     {
  78         delete GetClientObject(n);
  79     }
  80     ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , n + 1) ;
  81     m_strings.Remove( n ) ;
  82     m_datas.RemoveAt( n ) ;
  83         SetControl32BitMaximum( (ControlHandle) m_macControl , GetCount()) ;
  84 }
  85 void wxChoice::Clear()
  86 {
  87     FreeData();
  88     for ( int i = 0 ; i < GetCount() ; i++ )
  89     {
  90         ::DeleteMenuItem( MAC_WXHMENU(m_macPopUpMenuHandle) , 1 ) ;
  91     }
  92     m_strings.Empty() ;
  93     m_datas.Empty() ;
  94     SetControl32BitMaximum( (ControlHandle) m_macControl , 0 ) ;
  95 }
  96 void wxChoice::FreeData()
  97 {
  98     if ( HasClientObjectData() )
  99     {
 100         size_t count = GetCount();
 101         for ( size_t n = 0; n < count; n++ )
 102         {
 103             delete GetClientObject(n);
 104         }
 105     }
 106 }
 107 // ----------------------------------------------------------------------------
 108 // selection
 109 // ----------------------------------------------------------------------------
 110 int wxChoice::GetSelection() const
 111 {
 112     return GetControl32BitValue( (ControlHandle) m_macControl ) -1 ;
 113 }
 114 void wxChoice::SetSelection(int n)
 115 {
 116     SetControl32BitValue( (ControlHandle) m_macControl , n + 1 ) ;
 117 }
 118 // ----------------------------------------------------------------------------
 119 // string list functions
 120 // ----------------------------------------------------------------------------
 121 int wxChoice::GetCount() const
 122 {
 123     return m_strings.GetCount() ;
 124 }
 125 int wxChoice::FindString(const wxString& s) const
 126 {
 127     for( int i = 0 ; i < GetCount() ; i++ )
 128     {
 129         if ( GetString( i ).IsSameAs(s, FALSE) )
 130                 return i ;
 131     }
 132     return wxNOT_FOUND ;
 133 }
 134 void wxChoice::SetString(int n, const wxString& s)
 135 {
 136     wxFAIL_MSG(wxT("wxChoice::SetString() not yet implemented"));
 137 #if 0 // should do this, but no Insert() so far
 138     Delete(n);
 139     Insert(n + 1, s);
 140 #endif
 141 }
 142
 143 wxString wxChoice::GetString(int n) const
 144 {
 145         return m_strings[n] ;
 146 }
 147 // ----------------------------------------------------------------------------
 148 // client data
 149 // ----------------------------------------------------------------------------
 150 void wxChoice::DoSetItemClientData( int n, void* clientData )
 151 {
 152     wxCHECK_RET( n >= 0 && (size_t)n < m_datas.GetCount(),
 153                  "invalid index in wxChoice::SetClientData" );
 154
 155     m_datas[n] = (char*) clientData ;
 156 }
 157 void *wxChoice::DoGetItemClientData(int n) const
 158 {
 159     wxCHECK_MSG( n >= 0 && (size_t)n < m_datas.GetCount(), NULL,
 160                  "invalid index in wxChoice::GetClientData" );
 161     return (void *)m_datas[n];
 162 }
 163 void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
 164 {
 165     DoSetItemClientData(n, clientData);
 166 }
 167 wxClientData* wxChoice::DoGetItemClientObject( int n ) const
 168 {
 169     return (wxClientData *)DoGetItemClientData(n);
 170 }
 171 void wxChoice::MacHandleControlClick( WXWidget control , wxInt16 controlpart )
 172 {
 173     wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId );
 174     int n = GetSelection();
 175     // actually n should be made sure by the os to be a valid selection, but ...
 176     if ( n > -1 )
 177     {
 178         event.SetInt( n );
 179         event.SetString(GetStringSelection());
 180         event.SetEventObject(this);
 181         if ( HasClientObjectData() )
 182             event.SetClientObject( GetClientObject(n) );
 183         else if ( HasClientUntypedData() )
 184             event.SetClientData( GetClientData(n) );
 185         ProcessCommand(event);
 186     }
 187 }
 188 wxSize wxChoice::DoGetBestSize() const
 189 {
 190     int lbWidth = 100;  // some defaults
 191     int lbHeight = 20;
 192     int wLine;
 193 #if TARGET_CARBON
 194     long metric ;
 195     GetThemeMetric(kThemeMetricPopupButtonHeight , &metric );
 196     lbHeight = metric ;
 197 #endif
 198         {
 199                 wxMacPortStateHelper st( UMAGetWindowPort( (WindowRef) MacGetRootWindow() ) ) ;
 200                 Rect drawRect ;
 201                 wxFontRefData * font = (wxFontRefData*) m_font.GetRefData() ;
 202                 if ( font )
 203                 {
 204                         ::TextFont( font->m_macFontNum ) ;
 205                         ::TextSize( short(font->m_macFontSize) ) ;
 206                         ::TextFace( font->m_macFontStyle ) ;
 207                 }
 208                 else
 209                 {
 210                 ::TextFont( kFontIDMonaco ) ;
 211                 ::TextSize( 9  );
 212                 ::TextFace( 0 ) ;
 213                 }
 214             // Find the widest line
 215             for(int i = 0; i < GetCount(); i++) {
 216                 wxString str(GetString(i));
 217                 wLine = ::TextWidth( str.c_str() , 0 , str.Length() ) ;
 218                 lbWidth = wxMax(lbWidth, wLine);
 219             }
 220             // Add room for the popup arrow
 221             lbWidth += 2 * lbHeight ;
 222             // And just a bit more
 223             int cy = 12 ;
 224             int cx = ::TextWidth( "X" , 0 , 1 ) ;
 225             lbWidth += cx ;
 226
 227         }
 228     return wxSize(lbWidth, lbHeight);
 229 }