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         Rect bounds ;
  34         Str255 title ;
  35
  36         MacPreControlCreate( parent , id ,  label , pos , size ,style, validator , name , &bounds , title ) ;
  37
  38         m_macControl = ::NewControl( parent->GetMacRootWindow() , &bounds , title , false , 0 , 0 , 1,
  39                 kControlRadioButtonProc , (long) this ) ;
  40
  41         MacPostControlCreate() ;
  42
  43   m_cycle = this ;
  44
  45   if (HasFlag(wxRB_GROUP))
  46   {
  47           AddInCycle( NULL ) ;
  48   }
  49   else
  50   {
  51     /* search backward for last group start */
  52     wxRadioButton *chief = (wxRadioButton*) NULL;
  53     wxWindowList::Node *node = parent->GetChildren().GetLast();
  54     while (node)
  55     {
  56       wxWindow *child = node->GetData();
  57       if (child->IsKindOf( CLASSINFO( wxRadioButton ) ) )
  58       {
  59           chief = (wxRadioButton*) child;
  60          if (child->HasFlag(wxRB_GROUP)) break;
  61       }
  62       node = node->GetPrevious();
  63     }
  64     AddInCycle( chief ) ;
  65   }
  66     return TRUE;
  67 }
  68
  69 void wxRadioButton::SetValue(bool val)
  70 {
  71         int i;
  72         wxRadioButton *cycle;
  73           if ( GetControlValue( m_macControl ) == val )
  74             return ;
  75
  76    ::SetControlValue( m_macControl , val ) ;
  77    if (val)
  78    {
  79                 cycle=this->NextInCycle();
  80                 if (cycle!=NULL) {
  81                         while (cycle!=this) {
  82                                 cycle->SetValue(false);
  83                                 cycle=cycle->NextInCycle();
  84                                 }
  85                         }
  86                 }
  87 }
  88
  89 bool wxRadioButton::GetValue() const
  90 {
  91     return ::GetControlValue( m_macControl ) ;
  92 }
  93
  94 void wxRadioButton::Command (wxCommandEvent & event)
  95 {
  96   SetValue ( (event.GetInt() != 0) );
  97   ProcessCommand (event);
  98 }
  99
 100 void wxRadioButton::MacHandleControlClick( ControlHandle control , SInt16 controlpart )
 101 {
 102     if ( GetValue() )
 103       return ;
 104
 105           wxRadioButton *cycle, *old = NULL ;
 106     cycle=this->NextInCycle();
 107     if (cycle!=NULL) {
 108           while (cycle!=this) {
 109             if ( cycle->GetValue() ) {
 110               old = cycle ;
 111                     cycle->SetValue(false);
 112                   }
 113                   cycle=cycle->NextInCycle();
 114                 }
 115     }
 116
 117           SetValue(true) ;
 118
 119     if ( old ) {
 120       wxCommandEvent event(wxEVT_COMMAND_RADIOBUTTON_SELECTED, old->m_windowId );
 121       event.SetEventObject(old);
 122       event.SetInt( false );
 123       old->ProcessCommand(event);
 124     }
 125     wxCommandEvent event2(wxEVT_COMMAND_RADIOBUTTON_SELECTED, m_windowId );
 126     event2.SetEventObject(this);
 127     event2.SetInt( true );
 128     ProcessCommand(event2);
 129 }
 130
 131 wxRadioButton *wxRadioButton::AddInCycle(wxRadioButton *cycle)
 132 {
 133         wxRadioButton *next,*current;
 134
 135         if (cycle==NULL) {
 136                 m_cycle=this;
 137                 return(this);
 138                 }
 139         else {
 140                 current=cycle;
 141                 while ((next=current->m_cycle)!=cycle)
 142                   current=current->m_cycle;
 143                 m_cycle=cycle;
 144                 current->m_cycle=this;
 145                 return(cycle);
 146         }
 147 }