src/common/clntdata.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/clntdata.cpp
   3 // Purpose:     A mixin class for holding a wxClientData or void pointer
   4 // Author:      Robin Dunn
   5 // Modified by:
   6 // Created:     9-Oct-2001
   7 // Copyright:   (c) wxWidgets team
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #include "wx/clntdata.h"
  19
  20
  21 // ----------------------------------------------------------------------------
  22
  23
  24 wxClientDataContainer::wxClientDataContainer()
  25 {
  26     // no client data (yet)
  27     m_clientData = NULL;
  28     m_clientDataType = wxClientData_None;
  29 }
  30
  31 wxClientDataContainer::~wxClientDataContainer()
  32 {
  33     // we only delete object data, not untyped
  34     if ( m_clientDataType == wxClientData_Object )
  35         delete m_clientObject;
  36 }
  37
  38 void wxClientDataContainer::DoSetClientObject( wxClientData *data )
  39 {
  40     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
  41                   wxT("can't have both object and void client data") );
  42
  43     if ( m_clientObject )
  44         delete m_clientObject;
  45
  46     m_clientObject = data;
  47     m_clientDataType = wxClientData_Object;
  48 }
  49
  50 wxClientData *wxClientDataContainer::DoGetClientObject() const
  51 {
  52     // it's not an error to call GetClientObject() on a window which doesn't
  53     // have client data at all - NULL will be returned
  54     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
  55                   wxT("this window doesn't have object client data") );
  56
  57     return m_clientObject;
  58 }
  59
  60 void wxClientDataContainer::DoSetClientData( void *data )
  61 {
  62     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
  63                   wxT("can't have both object and void client data") );
  64
  65     m_clientData = data;
  66     m_clientDataType = wxClientData_Void;
  67 }
  68
  69 void *wxClientDataContainer::DoGetClientData() const
  70 {
  71     // it's not an error to call GetClientData() on a window which doesn't have
  72     // client data at all - NULL will be returned
  73     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
  74                   wxT("this window doesn't have void client data") );
  75
  76     return m_clientData;
  77 }
  78
  79
  80 // ----------------------------------------------------------------------------
  81
  82