src/mac/carbon/radiobut.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        radiobut.cpp
   3 // Purpose:     wxRadioButton
   4 // Author:      AUTHOR
   5 // Modified by: JS Lair (99/11/15) adding the cyclic groupe notion for radiobox
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:       wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "radiobut.h"
  14 #endif
  15
  16 #include "wx/defs.h"
  17
  18 #include "wx/radiobut.h"
  19
  20 #if !USE_SHARED_LIBRARY
  21 IMPLEMENT_DYNAMIC_CLASS(wxRadioButton, wxControl)
  22 #endif
  23
  24 #include "wx/mac/uma.h"
  25
  26 bool wxRadioButton::Create(wxWindow *parent, wxWindowID id,
  27            const wxString& label,
  28            const wxPoint& pos,
  29            const wxSize& size, long style,
  30            const wxValidator& validator,
  31            const wxString& name)
  32 {
  33     m_macIsUserPane = FALSE ;
  34
  35     if ( !wxControl::Create(parent, id, pos, size, style, validator, name) )
  36         return false;
  37
  38     m_label = label ;
  39
  40     Rect bounds = wxMacGetBoundsForControl( this , pos , size ) ;
  41
  42     m_peer = new wxMacControl() ;
  43     verify_noerr ( CreateRadioButtonControl( MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds , CFSTR("") ,
  44         0 , false /* no autotoggle */ , m_peer->GetControlRefAddr() ) );
  45
  46
  47     MacPostControlCreate(pos,size) ;
  48
  49   m_cycle = this ;
  50
  51   if (HasFlag(wxRB_GROUP))
  52   {
  53       AddInCycle( NULL ) ;
  54   }
  55   else
  56   {
  57     /* search backward for last group start */
  58     wxRadioButton *chief = (wxRadioButton*) NULL;
  59     wxWindowList::compatibility_iterator node = parent->GetChildren().GetLast();
  60     while (node)
  61     {
  62       wxWindow *child = node->GetData();
  63       if (child->IsKindOf( CLASSINFO( wxRadioButton ) ) )
  64       {
  65           chief = (wxRadioButton*) child;
  66          if (child->HasFlag(wxRB_GROUP)) break;
  67       }
  68       node = node->GetPrevious();
  69     }
  70     AddInCycle( chief ) ;
  71   }
  72     return TRUE;
  73 }
  74
  75 void wxRadioButton::SetValue(bool val)
  76 {
  77     wxRadioButton *cycle;
  78       if ( m_peer->GetValue() == val )
  79         return ;
  80
  81    m_peer->SetValue( val ) ;
  82    if (val)
  83    {
  84            cycle=this->NextInCycle();
  85           if (cycle!=NULL) {
  86                while (cycle!=this) {
  87                    cycle->SetValue(false);
  88                    cycle=cycle->NextInCycle();
  89                    }
  90                }
  91            }
  92    MacRedrawControl() ;
  93 }
  94
  95 bool wxRadioButton::GetValue() const
  96 {
  97     return m_peer->GetValue() ;
  98 }
  99
 100 void wxRadioButton::Command (wxCommandEvent & event)
 101 {
 102   SetValue ( (event.GetInt() != 0) );
 103   ProcessCommand (event);
 104 }
 105
 106 wxInt32 wxRadioButton::MacControlHit(WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
 107 {
 108     // if already set -> no action
 109     if ( GetValue() )
 110       return noErr;
 111
 112       wxRadioButton *cycle, *old = NULL ;
 113     cycle=this->NextInCycle();
 114     if (cycle!=NULL) {
 115           while (cycle!=this) {
 116             if ( cycle->GetValue() ) {
 117               old = cycle ;
 118                 cycle->SetValue(false);
 119               }
 120               cycle=cycle->NextInCycle();
 121             }
 122     }
 123
 124       SetValue(true) ;
 125
 126     if ( old ) {
 127       wxCommandEvent event(wxEVT_COMMAND_RADIOBUTTON_SELECTED, old->m_windowId );
 128       event.SetEventObject(old);
 129       event.SetInt( false );
 130       old->ProcessCommand(event);
 131     }
 132     wxCommandEvent event2(wxEVT_COMMAND_RADIOBUTTON_SELECTED, m_windowId );
 133     event2.SetEventObject(this);
 134     event2.SetInt( true );
 135     ProcessCommand(event2);
 136     return noErr ;
 137 }
 138
 139 wxRadioButton *wxRadioButton::AddInCycle(wxRadioButton *cycle)
 140 {
 141     wxRadioButton *next,*current;
 142
 143     if (cycle==NULL) {
 144         m_cycle=this;
 145         return(this);
 146         }
 147     else {
 148         current=cycle;
 149           while ((next=current->m_cycle)!=cycle)
 150             current=current->m_cycle;
 151           m_cycle=cycle;
 152           current->m_cycle=this;
 153           return(cycle);
 154       }
 155 }