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     verify_noerr ( CreateRadioButtonControl( MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds , CFSTR("") ,
  43         0 , false /* no autotoggle */ , (ControlRef*) &m_macControl ) ) ;
  44
  45     MacPostControlCreate(pos,size) ;
  46
  47   m_cycle = this ;
  48
  49   if (HasFlag(wxRB_GROUP))
  50   {
  51       AddInCycle( NULL ) ;
  52   }
  53   else
  54   {
  55     /* search backward for last group start */
  56     wxRadioButton *chief = (wxRadioButton*) NULL;
  57     wxWindowList::Node *node = parent->GetChildren().GetLast();
  58     while (node)
  59     {
  60       wxWindow *child = node->GetData();
  61       if (child->IsKindOf( CLASSINFO( wxRadioButton ) ) )
  62       {
  63           chief = (wxRadioButton*) child;
  64          if (child->HasFlag(wxRB_GROUP)) break;
  65       }
  66       node = node->GetPrevious();
  67     }
  68     AddInCycle( chief ) ;
  69   }
  70     return TRUE;
  71 }
  72
  73 void wxRadioButton::SetValue(bool val)
  74 {
  75     wxRadioButton *cycle;
  76       if ( GetControl32BitValue( (ControlRef) m_macControl ) == val )
  77         return ;
  78
  79    ::SetControl32BitValue( (ControlRef) m_macControl , val ) ;
  80    if (val)
  81    {
  82            cycle=this->NextInCycle();
  83           if (cycle!=NULL) {
  84                while (cycle!=this) {
  85                    cycle->SetValue(false);
  86                    cycle=cycle->NextInCycle();
  87                    }
  88                }
  89            }
  90    MacRedrawControl() ;
  91 }
  92
  93 bool wxRadioButton::GetValue() const
  94 {
  95     return ::GetControl32BitValue( (ControlRef) m_macControl ) ;
  96 }
  97
  98 void wxRadioButton::Command (wxCommandEvent & event)
  99 {
 100   SetValue ( (event.GetInt() != 0) );
 101   ProcessCommand (event);
 102 }
 103
 104 wxInt32 wxRadioButton::MacControlHit(WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
 105 {
 106     // if already set -> no action
 107     if ( GetValue() )
 108       return noErr;
 109
 110       wxRadioButton *cycle, *old = NULL ;
 111     cycle=this->NextInCycle();
 112     if (cycle!=NULL) {
 113           while (cycle!=this) {
 114             if ( cycle->GetValue() ) {
 115               old = cycle ;
 116                 cycle->SetValue(false);
 117               }
 118               cycle=cycle->NextInCycle();
 119             }
 120     }
 121
 122       SetValue(true) ;
 123
 124     if ( old ) {
 125       wxCommandEvent event(wxEVT_COMMAND_RADIOBUTTON_SELECTED, old->m_windowId );
 126       event.SetEventObject(old);
 127       event.SetInt( false );
 128       old->ProcessCommand(event);
 129     }
 130     wxCommandEvent event2(wxEVT_COMMAND_RADIOBUTTON_SELECTED, m_windowId );
 131     event2.SetEventObject(this);
 132     event2.SetInt( true );
 133     ProcessCommand(event2);
 134     return noErr ;
 135 }
 136
 137 wxRadioButton *wxRadioButton::AddInCycle(wxRadioButton *cycle)
 138 {
 139     wxRadioButton *next,*current;
 140
 141     if (cycle==NULL) {
 142         m_cycle=this;
 143         return(this);
 144         }
 145     else {
 146         current=cycle;
 147           while ((next=current->m_cycle)!=cycle)
 148             current=current->m_cycle;
 149           m_cycle=cycle;
 150           current->m_cycle=this;
 151           return(cycle);
 152       }
 153 }