src/osx/radiobut_osx.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/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 // Copyright:   (c) AUTHOR
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #include "wx/wxprec.h"
  12
  13 #if wxUSE_RADIOBTN
  14
  15 #include "wx/radiobut.h"
  16 #include "wx/osx/private.h"
  17
  18 bool wxRadioButton::Create( wxWindow *parent,
  19     wxWindowID id,
  20     const wxString& label,
  21     const wxPoint& pos,
  22     const wxSize& size,
  23     long style,
  24     const wxValidator& validator,
  25     const wxString& name )
  26 {
  27     DontCreatePeer();
  28
  29     if ( !wxControl::Create( parent, id, pos, size, style, validator, name ) )
  30         return false;
  31
  32     m_labelOrig = m_label = label;
  33
  34     SetPeer(wxWidgetImpl::CreateRadioButton( this, parent, id, label, pos, size, style, GetExtraStyle() ));
  35
  36     MacPostControlCreate( pos, size );
  37
  38     m_cycle = this;
  39
  40     if (HasFlag( wxRB_GROUP ))
  41     {
  42         AddInCycle( NULL );
  43     }
  44     else
  45     {
  46         // search backward for last group start
  47         wxRadioButton *chief = NULL;
  48         wxWindowList::compatibility_iterator node = parent->GetChildren().GetLast();
  49         while (node)
  50         {
  51             wxWindow *child = node->GetData();
  52             if (child->IsKindOf( CLASSINFO( wxRadioButton ) ))
  53             {
  54                 chief = (wxRadioButton*)child;
  55                 if (child->HasFlag( wxRB_GROUP ))
  56                     break;
  57             }
  58
  59             node = node->GetPrevious();
  60         }
  61
  62         AddInCycle( chief );
  63     }
  64
  65     return true;
  66 }
  67
  68 wxRadioButton::~wxRadioButton()
  69 {
  70     RemoveFromCycle();
  71 }
  72
  73 void wxRadioButton::SetValue(bool val)
  74 {
  75     wxRadioButton *cycle;
  76     if (GetPeer()->GetValue() == val)
  77         return;
  78
  79     GetPeer()->SetValue( val );
  80     if (val)
  81     {
  82         cycle = this->NextInCycle();
  83         if (cycle != NULL)
  84         {
  85             while (cycle != this)
  86             {
  87                 cycle->SetValue( false );
  88                 cycle = cycle->NextInCycle();
  89             }
  90         }
  91     }
  92 }
  93
  94 bool wxRadioButton::GetValue() const
  95 {
  96     return GetPeer()->GetValue() != 0;
  97 }
  98
  99 void wxRadioButton::Command(wxCommandEvent& event)
 100 {
 101     SetValue( (event.GetInt() != 0) );
 102     ProcessCommand( event );
 103 }
 104
 105 bool wxRadioButton::OSXHandleClicked( double WXUNUSED(timestampsec) )
 106 {
 107     if ( !GetPeer()->ButtonClickDidStateChange() )
 108     {
 109         // if already set -> no action
 110         if (GetValue())
 111             return true;
 112     }
 113
 114     wxRadioButton *cycle;
 115     cycle = this->NextInCycle();
 116     if (cycle != NULL)
 117     {
 118         while (cycle != this)
 119         {
 120             if (cycle->GetValue())
 121                 cycle->SetValue( false );
 122
 123             cycle = cycle->NextInCycle();
 124         }
 125     }
 126
 127     SetValue( true );
 128
 129     wxCommandEvent event2( wxEVT_RADIOBUTTON, m_windowId );
 130     event2.SetEventObject( this );
 131     event2.SetInt( true );
 132     ProcessCommand( event2 );
 133
 134     return true;
 135 }
 136
 137 wxRadioButton *wxRadioButton::AddInCycle(wxRadioButton *cycle)
 138 {
 139     wxRadioButton *current;
 140
 141     if (cycle == NULL)
 142     {
 143         m_cycle = this;
 144     }
 145     else
 146     {
 147         current = cycle;
 148         while (current->m_cycle != cycle)
 149             current = current->m_cycle;
 150
 151         m_cycle = cycle;
 152         current->m_cycle = this;
 153     }
 154
 155     return m_cycle;
 156 }
 157
 158 void wxRadioButton::RemoveFromCycle()
 159 {
 160     if ((m_cycle == NULL) || (m_cycle == this))
 161         return;
 162
 163     // Find the previous one and make it point to the next one
 164     wxRadioButton* prev = this;
 165     while (prev->m_cycle != this)
 166         prev = prev->m_cycle;
 167
 168     prev->m_cycle = m_cycle;
 169 }
 170
 171 #endif