// implements an extended interface deriving from this one)
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxItemContainerImmutable
+class WXDLLIMPEXP_CORE wxItemContainerImmutable
{
public:
wxItemContainerImmutable() { }
bool SetStringSelection(const wxString& s);
// return the selected string or empty string if none
- wxString GetStringSelection() const;
+ virtual wxString GetStringSelection() const;
// this is the same as SetSelection( for single-selection controls but
// reads better for multi-selection ones
// in this case DoInsertItem() needs to be overridden.
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxItemContainer : public wxItemContainerImmutable
+class WXDLLIMPEXP_CORE wxItemContainer : public wxItemContainerImmutable
{
private:
// AppendItems() and InsertItems() helpers just call DoAppend/InsertItems()
int AppendItems(const wxArrayStringsAdapter& items, void **clientData)
{
- wxASSERT_MSG( m_clientDataItemsType != wxClientData_Object,
- _T("can't mix different types of client data") );
+ wxASSERT_MSG( GetClientDataType() != wxClientData_Object,
+ wxT("can't mix different types of client data") );
return AppendItems(items, clientData, wxClientData_Void);
}
int AppendItems(const wxArrayStringsAdapter& items,
wxClientData **clientData)
{
- wxASSERT_MSG( m_clientDataItemsType != wxClientData_Void,
- _T("can't mix different types of client data") );
+ wxASSERT_MSG( GetClientDataType() != wxClientData_Void,
+ wxT("can't mix different types of client data") );
- return AppendItems(items, wx_reinterpret_cast(void **, clientData),
+ return AppendItems(items, reinterpret_cast<void **>(clientData),
wxClientData_Object);
}
void **clientData,
wxClientDataType type)
{
- wxASSERT_MSG( !IsSorted(), _T("can't insert items in sorted control") );
+ wxASSERT_MSG( !IsSorted(), wxT("can't insert items in sorted control") );
wxCHECK_MSG( pos <= GetCount(), wxNOT_FOUND,
- _T("position out of range") );
+ wxT("position out of range") );
// not all derived classes handle empty arrays correctly in
// DoInsertItems() and besides it really doesn't make much sense to do
// this (for append it could correspond to creating an initially empty
// control but why would anybody need to insert 0 items?)
wxCHECK_MSG( !items.IsEmpty(), wxNOT_FOUND,
- _T("need something to insert") );
+ wxT("need something to insert") );
return DoInsertItems(items, pos, clientData, type);
}
unsigned int pos,
void **clientData)
{
- wxASSERT_MSG( m_clientDataItemsType != wxClientData_Object,
- _T("can't mix different types of client data") );
+ wxASSERT_MSG( GetClientDataType() != wxClientData_Object,
+ wxT("can't mix different types of client data") );
return InsertItems(items, pos, clientData, wxClientData_Void);
}
unsigned int pos,
wxClientData **clientData)
{
- wxASSERT_MSG( m_clientDataItemsType != wxClientData_Void,
- _T("can't mix different types of client data") );
+ wxASSERT_MSG( GetClientDataType() != wxClientData_Void,
+ wxT("can't mix different types of client data") );
return InsertItems(items, pos,
- wx_reinterpret_cast(void **, clientData),
+ reinterpret_cast<void **>(clientData),
wxClientData_Object);
}
void Delete(unsigned int pos);
+ // various accessors
+ // -----------------
+
+ // The control may maintain its items in a sorted order in which case
+ // items are automatically inserted at the right position when they are
+ // inserted or appended. Derived classes have to override this method if
+ // they implement sorting, typically by returning HasFlag(wxXX_SORT)
+ virtual bool IsSorted() const { return false; }
+
+
// client data stuff
// -----------------
void SetClientData(unsigned int n, void* clientData);
void* GetClientData(unsigned int n) const;
+ // SetClientObject() takes ownership of the pointer, GetClientObject()
+ // returns it but keeps the ownership while DetachClientObject() expects
+ // the caller to delete the pointer and also resets the internally stored
+ // one to NULL for this item
void SetClientObject(unsigned int n, wxClientData* clientData);
wxClientData* GetClientObject(unsigned int n) const;
+ wxClientData* DetachClientObject(unsigned int n);
+
+ // return the type of client data stored in this control: usually it just
+ // returns m_clientDataItemsType but must be overridden in the controls
+ // which delegate their client data storage to another one (e.g. wxChoice
+ // in wxUniv which stores data in wxListBox which it uses anyhow); don't
+ // forget to override SetClientDataType() if you override this one
+ //
+ // NB: for this to work no code should ever access m_clientDataItemsType
+ // directly but only via this function!
+ virtual wxClientDataType GetClientDataType() const
+ { return m_clientDataItemsType; }
bool HasClientData() const
- { return m_clientDataItemsType != wxClientData_None; }
+ { return GetClientDataType() != wxClientData_None; }
bool HasClientObjectData() const
- { return m_clientDataItemsType == wxClientData_Object; }
+ { return GetClientDataType() == wxClientData_Object; }
bool HasClientUntypedData() const
- { return m_clientDataItemsType == wxClientData_Void; }
-
-
- // The control may maintain its items in a sorted order in which case
- // items are automatically inserted at the right position when they are
- // inserted or appended. Derived classes have to override this method if
- // they implement sorting, typically by returning HasFlag(wxXX_SORT)
- virtual bool IsSorted() const { return false; }
+ { return GetClientDataType() == wxClientData_Void; }
protected:
// there is usually no need to override this method but you can do it if it
// set it to NULL (must only be called if HasClientObjectData())
void ResetItemClientObject(unsigned int n);
+ // set the type of the client data stored in this control: override this if
+ // you override GetClientDataType()
+ virtual void SetClientDataType(wxClientDataType clientDataItemsType)
+ {
+ m_clientDataItemsType = clientDataItemsType;
+ }
+private:
// the type of the client data for the items
wxClientDataType m_clientDataItemsType;
};
-// this macro must (unfortunately) be used in any class deriving from both
-// wxItemContainer and wxControl because otherwise there is ambiguity when
-// calling GetClientXXX() functions -- the compiler can't choose between the
-// two versions
-#define wxCONTROL_ITEMCONTAINER_CLIENTDATAOBJECT_RECAST \
- void SetClientData(void *data) \
- { wxEvtHandler::SetClientData(data); } \
- void *GetClientData() const \
- { return wxEvtHandler::GetClientData(); } \
- void SetClientObject(wxClientData *data) \
- { wxEvtHandler::SetClientObject(data); } \
- wxClientData *GetClientObject() const \
- { return wxEvtHandler::GetClientObject(); } \
- void SetClientData(unsigned int n, void* clientData) \
- { wxItemContainer::SetClientData(n, clientData); } \
- void* GetClientData(unsigned int n) const \
- { return wxItemContainer::GetClientData(n); } \
- void SetClientObject(unsigned int n, wxClientData* clientData) \
- { wxItemContainer::SetClientObject(n, clientData); } \
- wxClientData* GetClientObject(unsigned int n) const \
+// Inheriting directly from a wxWindow-derived class and wxItemContainer
+// unfortunately introduces an ambiguity for all GetClientXXX() methods as they
+// are inherited twice: the "global" versions from wxWindow and the per-item
+// versions taking the index from wxItemContainer.
+//
+// So we need to explicitly resolve them and this helper template class is
+// provided to do it. To use it, simply inherit from wxWindowWithItems<Window,
+// Container> instead of Window and Container interface directly.
+template <class W, class C>
+class wxWindowWithItems : public W, public C
+{
+public:
+ typedef W BaseWindowClass;
+ typedef C BaseContainerInterface;
+
+ wxWindowWithItems() { }
+
+ void SetClientData(void *data)
+ { BaseWindowClass::SetClientData(data); }
+ void *GetClientData() const
+ { return BaseWindowClass::GetClientData(); }
+ void SetClientObject(wxClientData *data)
+ { BaseWindowClass::SetClientObject(data); }
+ wxClientData *GetClientObject() const
+ { return BaseWindowClass::GetClientObject(); }
+
+ void SetClientData(unsigned int n, void* clientData)
+ { wxItemContainer::SetClientData(n, clientData); }
+ void* GetClientData(unsigned int n) const
+ { return wxItemContainer::GetClientData(n); }
+ void SetClientObject(unsigned int n, wxClientData* clientData)
+ { wxItemContainer::SetClientObject(n, clientData); }
+ wxClientData* GetClientObject(unsigned int n) const
{ return wxItemContainer::GetClientObject(n); }
+};
-class WXDLLEXPORT wxControlWithItemsBase : public wxControl,
- public wxItemContainer
+class WXDLLIMPEXP_CORE wxControlWithItemsBase :
+ public wxWindowWithItems<wxControl, wxItemContainer>
{
public:
wxControlWithItemsBase() { }
- // we have to redefine these functions here to avoid ambiguities in classes
- // deriving from us which would arise otherwise because both base classses
- // have the methods with the same names - hopefully, a smart compiler can
- // optimize away these simple inline wrappers so we don't suffer much from
- // this
- wxCONTROL_ITEMCONTAINER_CLIENTDATAOBJECT_RECAST
-
// usually the controls like list/combo boxes have their own background
// colour
virtual bool ShouldInheritColours() const { return false; }
void InitCommandEventWithItems(wxCommandEvent& event, int n);
private:
- DECLARE_NO_COPY_CLASS(wxControlWithItemsBase)
+ wxDECLARE_NO_COPY_CLASS(wxControlWithItemsBase);
};
// define the platform-specific wxControlWithItems class
#elif defined(__WXMOTIF__)
#include "wx/motif/ctrlsub.h"
#else
- class wxControlWithItems : public wxControlWithItemsBase
+ class WXDLLIMPEXP_CORE wxControlWithItems : public wxControlWithItemsBase
{
public:
wxControlWithItems() { }
private:
DECLARE_ABSTRACT_CLASS(wxControlWithItems)
- DECLARE_NO_COPY_CLASS(wxControlWithItems)
+ wxDECLARE_NO_COPY_CLASS(wxControlWithItems);
};
#endif
projects / wxWidgets.git / blobdiff