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