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 IMPLEMENT_DYNAMIC_CLASS(wxRadioButton, wxControl)
  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(this) ;
  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 wxRadioButton::~wxRadioButton()
  76 {
  77     RemoveFromCycle();
  78 }
  79
  80 void wxRadioButton::SetValue(bool val)
  81 {
  82     wxRadioButton *cycle;
  83     if ( m_peer->GetValue() == val )
  84         return ;
  85
  86     m_peer->SetValue( val ) ;
  87     if (val)
  88     {
  89         cycle=this->NextInCycle();
  90         if (cycle!=NULL)
  91         {
  92             while (cycle!=this)
  93             {
  94                 cycle->SetValue(false);
  95                 cycle=cycle->NextInCycle();
  96             }
  97         }
  98     }
  99 }
 100
 101 bool wxRadioButton::GetValue() const
 102 {
 103     return m_peer->GetValue() ;
 104 }
 105
 106 void wxRadioButton::Command (wxCommandEvent & event)
 107 {
 108   SetValue ( (event.GetInt() != 0) );
 109   ProcessCommand (event);
 110 }
 111
 112 wxInt32 wxRadioButton::MacControlHit(WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
 113 {
 114     // if already set -> no action
 115     if ( GetValue() )
 116         return noErr;
 117
 118     wxRadioButton *cycle;
 119     cycle=this->NextInCycle();
 120     if (cycle!=NULL) {
 121         while (cycle!=this) {
 122             if ( cycle->GetValue() ) {
 123                 cycle->SetValue(false);
 124             }
 125             cycle=cycle->NextInCycle();
 126         }
 127     }
 128
 129     SetValue(true) ;
 130
 131     wxCommandEvent event2(wxEVT_COMMAND_RADIOBUTTON_SELECTED, m_windowId );
 132     event2.SetEventObject(this);
 133     event2.SetInt( true );
 134     ProcessCommand(event2);
 135     return noErr ;
 136 }
 137
 138 wxRadioButton *wxRadioButton::AddInCycle(wxRadioButton *cycle)
 139 {
 140     wxRadioButton *next,*current;
 141
 142     if (cycle==NULL)
 143     {
 144         m_cycle=this;
 145         return(this);
 146     }
 147     else
 148     {
 149         current=cycle;
 150         while ((next=current->m_cycle)!=cycle)
 151             current=current->m_cycle;
 152         m_cycle=cycle;
 153         current->m_cycle=this;
 154         return(cycle);
 155     }
 156 }
 157
 158 void wxRadioButton::RemoveFromCycle()
 159 {
 160     if (m_cycle==NULL || m_cycle == this)
 161     {
 162         return;
 163     }
 164     else
 165     {
 166         // Find the previous one and make it point to the next one
 167         wxRadioButton* prev = this;
 168         while (prev->m_cycle != this)
 169             prev = prev->m_cycle;
 170         prev->m_cycle = m_cycle;
 171     }
 172 }
 173
 174 #endif