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 #include "wx/wxprec.h"
  13
  14 #if wxUSE_RADIOBTN
  15
  16 #include "wx/radiobut.h"
  17
  18 IMPLEMENT_DYNAMIC_CLASS(wxRadioButton, wxControl)
  19
  20 #include "wx/mac/uma.h"
  21
  22 bool wxRadioButton::Create(wxWindow *parent, wxWindowID id,
  23            const wxString& label,
  24            const wxPoint& pos,
  25            const wxSize& size, long style,
  26            const wxValidator& validator,
  27            const wxString& name)
  28 {
  29     m_macIsUserPane = false ;
  30
  31     if ( !wxControl::Create(parent, id, pos, size, style, validator, name) )
  32         return false;
  33
  34     m_label = label ;
  35
  36     Rect bounds = wxMacGetBoundsForControl( this , pos , size ) ;
  37
  38     m_peer = new wxMacControl(this) ;
  39     verify_noerr ( CreateRadioButtonControl( MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds , CFSTR("") ,
  40         0 , false /* no autotoggle */ , m_peer->GetControlRefAddr() ) );
  41
  42
  43     MacPostControlCreate(pos,size) ;
  44
  45     m_cycle = this ;
  46
  47     if (HasFlag(wxRB_GROUP))
  48     {
  49         AddInCycle( NULL ) ;
  50     }
  51     else
  52     {
  53         /* search backward for last group start */
  54         wxRadioButton *chief = (wxRadioButton*) NULL;
  55         wxWindowList::compatibility_iterator node = parent->GetChildren().GetLast();
  56         while (node)
  57         {
  58             wxWindow *child = node->GetData();
  59             if (child->IsKindOf( CLASSINFO( wxRadioButton ) ) )
  60             {
  61                 chief = (wxRadioButton*) child;
  62                 if (child->HasFlag(wxRB_GROUP)) break;
  63             }
  64             node = node->GetPrevious();
  65         }
  66         AddInCycle( chief ) ;
  67     }
  68     return true;
  69 }
  70
  71 wxRadioButton::~wxRadioButton()
  72 {
  73     RemoveFromCycle();
  74 }
  75
  76 void wxRadioButton::SetValue(bool val)
  77 {
  78     wxRadioButton *cycle;
  79     if ( m_peer->GetValue() == val )
  80         return ;
  81
  82     m_peer->SetValue( val ) ;
  83     if (val)
  84     {
  85         cycle=this->NextInCycle();
  86         if (cycle!=NULL)
  87         {
  88             while (cycle!=this)
  89             {
  90                 cycle->SetValue(false);
  91                 cycle=cycle->NextInCycle();
  92             }
  93         }
  94     }
  95 }
  96
  97 bool wxRadioButton::GetValue() const
  98 {
  99     return m_peer->GetValue() ;
 100 }
 101
 102 void wxRadioButton::Command (wxCommandEvent & event)
 103 {
 104   SetValue ( (event.GetInt() != 0) );
 105   ProcessCommand (event);
 106 }
 107
 108 wxInt32 wxRadioButton::MacControlHit(WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
 109 {
 110     // if already set -> no action
 111     if ( GetValue() )
 112         return noErr;
 113
 114     wxRadioButton *cycle;
 115     cycle=this->NextInCycle();
 116     if (cycle!=NULL) {
 117         while (cycle!=this) {
 118             if ( cycle->GetValue() ) {
 119                 cycle->SetValue(false);
 120             }
 121             cycle=cycle->NextInCycle();
 122         }
 123     }
 124
 125     SetValue(true) ;
 126
 127     wxCommandEvent event2(wxEVT_COMMAND_RADIOBUTTON_SELECTED, m_windowId );
 128     event2.SetEventObject(this);
 129     event2.SetInt( true );
 130     ProcessCommand(event2);
 131     return noErr ;
 132 }
 133
 134 wxRadioButton *wxRadioButton::AddInCycle(wxRadioButton *cycle)
 135 {
 136     wxRadioButton *next,*current;
 137
 138     if (cycle==NULL)
 139     {
 140         m_cycle=this;
 141         return(this);
 142     }
 143     else
 144     {
 145         current=cycle;
 146         while ((next=current->m_cycle)!=cycle)
 147             current=current->m_cycle;
 148         m_cycle=cycle;
 149         current->m_cycle=this;
 150         return(cycle);
 151     }
 152 }
 153
 154 void wxRadioButton::RemoveFromCycle()
 155 {
 156     if (m_cycle==NULL || m_cycle == this)
 157     {
 158         return;
 159     }
 160     else
 161     {
 162         // Find the previous one and make it point to the next one
 163         wxRadioButton* prev = this;
 164         while (prev->m_cycle != this)
 165             prev = prev->m_cycle;
 166         prev->m_cycle = m_cycle;
 167     }
 168 }
 169
 170 #endif