35a3bac439
This is slightly more economical, both at run-time and, maybe more importantly, at compile-time than using wxSharedPtr that we don't really need here, simple intrusive ref counting smart pointer is enough.
107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/common/clntdata.cpp
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// Purpose: A mixin class for holding a wxClientData or void pointer
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// Author: Robin Dunn
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// Modified by:
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// Created: 9-Oct-2001
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// Copyright: (c) wxWidgets team
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#include "wx/clntdata.h"
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// ----------------------------------------------------------------------------
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wxClientDataContainer::wxClientDataContainer()
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{
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// no client data (yet)
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m_clientData = NULL;
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m_clientDataType = wxClientData_None;
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}
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wxClientDataContainer::~wxClientDataContainer()
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{
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// we only delete object data, not untyped
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if ( m_clientDataType == wxClientData_Object )
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delete m_clientObject;
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}
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void wxClientDataContainer::DoSetClientObject( wxClientData *data )
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{
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wxASSERT_MSG( m_clientDataType != wxClientData_Void,
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wxT("can't have both object and void client data") );
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delete m_clientObject;
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m_clientObject = data;
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m_clientDataType = wxClientData_Object;
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}
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wxClientData *wxClientDataContainer::DoGetClientObject() const
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{
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// it's not an error to call GetClientObject() on a window which doesn't
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// have client data at all - NULL will be returned
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wxASSERT_MSG( m_clientDataType != wxClientData_Void,
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wxT("this window doesn't have object client data") );
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return m_clientObject;
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}
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void wxClientDataContainer::DoSetClientData( void *data )
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{
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wxASSERT_MSG( m_clientDataType != wxClientData_Object,
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wxT("can't have both object and void client data") );
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m_clientData = data;
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m_clientDataType = wxClientData_Void;
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}
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void *wxClientDataContainer::DoGetClientData() const
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{
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// it's not an error to call GetClientData() on a window which doesn't have
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// client data at all - NULL will be returned
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wxASSERT_MSG( m_clientDataType != wxClientData_Object,
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wxT("this window doesn't have void client data") );
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return m_clientData;
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}
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void wxSharedClientDataContainer::SetClientObject(wxClientData *data)
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{
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GetValidClientData()->SetClientObject(data);
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}
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wxClientData *wxSharedClientDataContainer::GetClientObject() const
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{
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return HasClientDataContainer() ? m_data->GetClientObject() : NULL;
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}
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void wxSharedClientDataContainer::SetClientData(void *data)
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{
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GetValidClientData()->SetClientData(data);
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}
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void *wxSharedClientDataContainer::GetClientData() const
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{
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return HasClientDataContainer() ? m_data->GetClientData() : NULL;
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}
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wxClientDataContainer *wxSharedClientDataContainer::GetValidClientData()
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{
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if ( !HasClientDataContainer() )
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{
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m_data = new wxRefCountedClientDataContainer;
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}
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return m_data.get();
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}
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// ----------------------------------------------------------------------------
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