src/osx/radiobut_osx.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        radiobut.cpp
   3 // Purpose:     wxRadioButton
   4 // Author:      AUTHOR
   5 // Modified by: JS Lair (99/11/15) adding the cyclic group 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 #include "wx/osx/private.h"
  18
  19 IMPLEMENT_DYNAMIC_CLASS(wxRadioButton, wxControl)
  20
  21
  22 bool wxRadioButton::Create( wxWindow *parent,
  23     wxWindowID id,
  24     const wxString& label,
  25     const wxPoint& pos,
  26     const wxSize& size,
  27     long style,
  28     const wxValidator& validator,
  29     const wxString& name )
  30 {
  31     m_macIsUserPane = false;
  32
  33     if ( !wxControl::Create( parent, id, pos, size, style, validator, name ) )
  34         return false;
  35
  36     m_labelOrig = m_label = label;
  37
  38     m_peer = wxWidgetImpl::CreateRadioButton( this, parent, id, label, pos, size, style, GetExtraStyle() );
  39
  40     MacPostControlCreate( pos, size );
  41
  42     m_cycle = this;
  43
  44     if (HasFlag( wxRB_GROUP ))
  45     {
  46         AddInCycle( NULL );
  47     }
  48     else
  49     {
  50         // search backward for last group start
  51         wxRadioButton *chief = NULL;
  52         wxWindowList::compatibility_iterator node = parent->GetChildren().GetLast();
  53         while (node)
  54         {
  55             wxWindow *child = node->GetData();
  56             if (child->IsKindOf( CLASSINFO( wxRadioButton ) ))
  57             {
  58                 chief = (wxRadioButton*)child;
  59                 if (child->HasFlag( wxRB_GROUP ))
  60                     break;
  61             }
  62
  63             node = node->GetPrevious();
  64         }
  65
  66         AddInCycle( chief );
  67     }
  68
  69     return true;
  70 }
  71
  72 wxRadioButton::~wxRadioButton()
  73 {
  74     RemoveFromCycle();
  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() != 0;
 101 }
 102
 103 void wxRadioButton::Command(wxCommandEvent& event)
 104 {
 105     SetValue( (event.GetInt() != 0) );
 106     ProcessCommand( event );
 107 }
 108
 109 bool wxRadioButton::OSXHandleClicked( double WXUNUSED(timestampsec) )
 110 {
 111     if ( !m_peer->ButtonClickDidStateChange() )
 112     {
 113         // if already set -> no action
 114         if (GetValue())
 115             return true;
 116     }
 117
 118     wxRadioButton *cycle;
 119     cycle = this->NextInCycle();
 120     if (cycle != NULL)
 121     {
 122         while (cycle != this)
 123         {
 124             if (cycle->GetValue())
 125                 cycle->SetValue( false );
 126
 127             cycle = cycle->NextInCycle();
 128         }
 129     }
 130
 131     SetValue( true );
 132
 133     wxCommandEvent event2( wxEVT_COMMAND_RADIOBUTTON_SELECTED, m_windowId );
 134     event2.SetEventObject( this );
 135     event2.SetInt( true );
 136     ProcessCommand( event2 );
 137
 138     return true;
 139 }
 140
 141 wxRadioButton *wxRadioButton::AddInCycle(wxRadioButton *cycle)
 142 {
 143     wxRadioButton *current;
 144
 145     if (cycle == NULL)
 146     {
 147         m_cycle = this;
 148     }
 149     else
 150     {
 151         current = cycle;
 152         while (current->m_cycle != cycle)
 153             current = current->m_cycle;
 154
 155         m_cycle = cycle;
 156         current->m_cycle = this;
 157     }
 158
 159     return m_cycle;
 160 }
 161
 162 void wxRadioButton::RemoveFromCycle()
 163 {
 164     if ((m_cycle == NULL) || (m_cycle == this))
 165         return;
 166
 167     // Find the previous one and make it point to the next one
 168     wxRadioButton* prev = this;
 169     while (prev->m_cycle != this)
 170         prev = prev->m_cycle;
 171
 172     prev->m_cycle = m_cycle;
 173 }
 174
 175 #endif