#ifndef _WX_CLNTDATAH__
#define _WX_CLNTDATAH__
-#ifdef __GNUG__
- #pragma interface "event.h"
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
+ #pragma interface "clntdata.h"
#endif
#include "wx/defs.h"
+#include "wx/string.h"
// ----------------------------------------------------------------------------
wxClientData_Void // client data is untyped and we don't own it
};
-class WXDLLEXPORT wxClientData
+class WXDLLIMPEXP_BASE wxClientData
{
public:
wxClientData() { }
virtual ~wxClientData() { }
};
-class WXDLLEXPORT wxStringClientData : public wxClientData
+class WXDLLIMPEXP_BASE wxStringClientData : public wxClientData
{
public:
- wxStringClientData() { }
+ wxStringClientData() : m_data() { }
wxStringClientData( const wxString &data ) : m_data(data) { }
void SetData( const wxString &data ) { m_data = data; }
const wxString& GetData() const { return m_data; }
wxString m_data;
};
+// This class is a mixin that provides storage and management of "client
+// data." The client data stored can either be a pointer to a wxClientData
+// object in which case it is managed by the container (i.e. it will delete
+// the data when it's destroyed) or an untyped pointer which won't be deleted
+// by the container - but not both of them
+//
+// NOTE: This functionality is currently duplicated in wxEvtHandler in order
+// to avoid having more than one vtable in that class hierarchy.
-class WXDLLEXPORT wxClientDataContainer
+class WXDLLIMPEXP_BASE wxClientDataContainer
{
public:
wxClientDataContainer();
- ~wxClientDataContainer();
+ virtual ~wxClientDataContainer();
- // each window may have associated client data: either a pointer to
- // wxClientData object in which case it is managed by the window (i.e.
- // it will delete the data when it's destroyed) or an untyped pointer
- // which won't be deleted by the window - but not both of them
void SetClientObject( wxClientData *data ) { DoSetClientObject(data); }
wxClientData *GetClientObject() const { return DoGetClientObject(); }
void *GetClientData() const { return DoGetClientData(); }
protected:
- // user data associated with the window: either an object which will be
- // deleted by the window when it's deleted or some raw pointer which we do
- // nothing with - only one type of data can be used with the given window
- // (i.e. you cannot set the void data and then associate the window with
- // wxClientData or vice versa)
+ // The user data: either an object which will be deleted by the container
+ // when it's deleted or some raw pointer which we do nothing with. Only
+ // one type of data can be used with the given window, i.e. you cannot set
+ // the void data and then associate the container with wxClientData or vice
+ // versa.
union
{
wxClientData *m_clientObject;
};
+// not Motif-specific, but currently used only under Motif
+#ifdef __WXMOTIF__
+
+#include <wx/vector.h>
+
+struct WXDLLEXPORT wxClientDataDictionaryPair
+{
+ wxClientDataDictionaryPair( size_t idx ) : index( idx ), data( 0 ) { }
+
+ size_t index;
+ wxClientData* data;
+};
+
+WX_DECLARE_VECTOR(wxClientDataDictionaryPair,wxClientDataDictionaryPairVector);
+
+// this class is used internally to maintain the association between items
+// of (some subclasses of) wxControlWithItems and their client data
+// NOTE: this class does not keep track of whether it contains
+// wxClientData or void*. The client must ensure that
+// it does not contain a mix of the two, and that
+// DestroyData is called if it contains wxClientData
+class WXDLLEXPORT wxClientDataDictionary
+{
+public:
+ wxClientDataDictionary() {};
+
+ // deletes all the data
+ void DestroyData()
+ {
+ for( size_t i = 0, end = m_vec.size(); i != end; ++i )
+ delete m_vec[i].data;
+ m_vec.clear();
+ }
+
+ // if data for the given index is not present, add it,
+ // if it is present, delete the old data and replace it with
+ // the new one
+ void Set( size_t index, wxClientData* data, bool doDelete )
+ {
+ size_t ptr = Find( index );
+
+ if( !data )
+ {
+ if( ptr == m_vec.size() ) return;
+ if( doDelete )
+ delete m_vec[ptr].data;
+ m_vec.erase( ptr );
+ }
+ else
+ {
+ if( ptr == m_vec.size() )
+ {
+ m_vec.push_back( wxClientDataDictionaryPair( index ) );
+ ptr = m_vec.size() - 1;
+ }
+
+ if( doDelete )
+ delete m_vec[ptr].data;
+ m_vec[ptr].data = data;
+ }
+ }
+
+ // get the data associated with the given index,
+ // return 0 if not found
+ wxClientData* Get( size_t index ) const
+ {
+ size_t it = Find( index );
+ if( it == m_vec.size() ) return 0;
+ return (wxClientData*)m_vec[it].data; // const cast
+ }
+
+ // delete the data associated with the given index
+ // it also decreases by one the indices of all the elements
+ // with an index greater than the given index
+ void Delete( size_t index, bool doDelete )
+ {
+ size_t todel = m_vec.size();
+
+ for( size_t i = 0, end = m_vec.size(); i != end; ++i )
+ {
+ if( m_vec[i].index == index )
+ todel = i;
+ else if( m_vec[i].index > index )
+ --(m_vec[i].index);
+ }
+
+ if( todel != m_vec.size() )
+ {
+ if( doDelete )
+ delete m_vec[todel].data;
+ m_vec.erase( todel );
+ }
+ }
+private:
+ // returns MyVec.size() if not found
+ size_t Find( size_t index ) const
+ {
+ for( size_t i = 0, end = m_vec.size(); i != end; ++i )
+ {
+ if( m_vec[i].index == index )
+ return i;
+ }
+
+ return m_vec.size();
+ }
+
+ wxClientDataDictionaryPairVector m_vec;
+};
+
+#endif // __WXMOTIF__
+
// ----------------------------------------------------------------------------
#endif
projects / wxWidgets.git / blobdiff