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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "radiobut.h"
  14 #endif
  15
  16 #include "wx/wxprec.h"
  17
  18 #if wxUSE_RADIOBTN
  19
  20 #include "wx/radiobut.h"
  21
  22 #if !USE_SHARED_LIBRARY
  23 IMPLEMENT_DYNAMIC_CLASS(wxRadioButton, wxControl)
  24 #endif
  25
  26 #include "wx/mac/uma.h"
  27
  28 bool wxRadioButton::Create(wxWindow *parent, wxWindowID id,
  29            const wxString& label,
  30            const wxPoint& pos,
  31            const wxSize& size, long style,
  32            const wxValidator& validator,
  33            const wxString& name)
  34 {
  35     m_macIsUserPane = FALSE ;
  36
  37     if ( !wxControl::Create(parent, id, pos, size, style, validator, name) )
  38         return false;
  39
  40     m_label = label ;
  41
  42     Rect bounds = wxMacGetBoundsForControl( this , pos , size ) ;
  43
  44     m_peer = new wxMacControl() ;
  45     verify_noerr ( CreateRadioButtonControl( MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds , CFSTR("") ,
  46         0 , false /* no autotoggle */ , m_peer->GetControlRefAddr() ) );
  47
  48
  49     MacPostControlCreate(pos,size) ;
  50
  51   m_cycle = this ;
  52
  53   if (HasFlag(wxRB_GROUP))
  54   {
  55       AddInCycle( NULL ) ;
  56   }
  57   else
  58   {
  59     /* search backward for last group start */
  60     wxRadioButton *chief = (wxRadioButton*) NULL;
  61     wxWindowList::compatibility_iterator node = parent->GetChildren().GetLast();
  62     while (node)
  63     {
  64       wxWindow *child = node->GetData();
  65       if (child->IsKindOf( CLASSINFO( wxRadioButton ) ) )
  66       {
  67           chief = (wxRadioButton*) child;
  68          if (child->HasFlag(wxRB_GROUP)) break;
  69       }
  70       node = node->GetPrevious();
  71     }
  72     AddInCycle( chief ) ;
  73   }
  74     return TRUE;
  75 }
  76
  77 void wxRadioButton::SetValue(bool val)
  78 {
  79     wxRadioButton *cycle;
  80     if ( m_peer->GetValue() == val )
  81         return ;
  82
  83     m_peer->SetValue( val ) ;
  84     if (val)
  85     {
  86         cycle=this->NextInCycle();
  87         if (cycle!=NULL)
  88         {
  89            while (cycle!=this)
  90            {
  91                cycle->SetValue(false);
  92                cycle=cycle->NextInCycle();
  93            }
  94        }
  95     }
  96 }
  97
  98 bool wxRadioButton::GetValue() const
  99 {
 100     return m_peer->GetValue() ;
 101 }
 102
 103 void wxRadioButton::Command (wxCommandEvent & event)
 104 {
 105   SetValue ( (event.GetInt() != 0) );
 106   ProcessCommand (event);
 107 }
 108
 109 wxInt32 wxRadioButton::MacControlHit(WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
 110 {
 111     // if already set -> no action
 112     if ( GetValue() )
 113       return noErr;
 114
 115       wxRadioButton *cycle, *old = NULL ;
 116     cycle=this->NextInCycle();
 117     if (cycle!=NULL) {
 118           while (cycle!=this) {
 119             if ( cycle->GetValue() ) {
 120               old = cycle ;
 121                 cycle->SetValue(false);
 122               }
 123               cycle=cycle->NextInCycle();
 124             }
 125     }
 126
 127       SetValue(true) ;
 128
 129     if ( old ) {
 130       wxCommandEvent event(wxEVT_COMMAND_RADIOBUTTON_SELECTED, old->m_windowId );
 131       event.SetEventObject(old);
 132       event.SetInt( false );
 133       old->ProcessCommand(event);
 134     }
 135     wxCommandEvent event2(wxEVT_COMMAND_RADIOBUTTON_SELECTED, m_windowId );
 136     event2.SetEventObject(this);
 137     event2.SetInt( true );
 138     ProcessCommand(event2);
 139     return noErr ;
 140 }
 141
 142 wxRadioButton *wxRadioButton::AddInCycle(wxRadioButton *cycle)
 143 {
 144     wxRadioButton *next,*current;
 145
 146     if (cycle==NULL) {
 147         m_cycle=this;
 148         return(this);
 149         }
 150     else {
 151         current=cycle;
 152           while ((next=current->m_cycle)!=cycle)
 153             current=current->m_cycle;
 154           m_cycle=cycle;
 155           current->m_cycle=this;
 156           return(cycle);
 157       }
 158 }
 159
 160 #endif