#if wxUSE_CONTROLS
+#include "wx/arrstr.h"
#include "wx/control.h" // base class
// ----------------------------------------------------------------------------
// 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
protected:
-
// check that the index is valid
- inline bool IsValid(unsigned int n) const { return n < GetCount(); }
- inline bool IsValidInsert(unsigned int n) const { return n <= GetCount(); }
+ bool IsValid(unsigned int n) const { return n < GetCount(); }
+ bool IsValidInsert(unsigned int n) const { return n <= GetCount(); }
};
-class WXDLLEXPORT wxItemContainer : public wxItemContainerImmutable
+// ----------------------------------------------------------------------------
+// wxItemContainer extends wxItemContainerImmutable interface with methods
+// for adding/removing items.
+//
+// Classes deriving from this one must override DoInsertItems() to implement
+// adding items to the control. This can often be implemented more efficiently
+// than simply looping over the elements and inserting them but if this is not
+// the case, the generic DoInsertItemsInLoop can be used in implementation, but
+// in this case DoInsertItem() needs to be overridden.
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxItemContainer : public wxItemContainerImmutable
{
+private:
+ // AppendItems() and InsertItems() helpers just call DoAppend/InsertItems()
+ // after doing some checks
+ //
+ // NB: they're defined here so that they're inlined when used in public part
+ int AppendItems(const wxArrayStringsAdapter& items,
+ void **clientData,
+ wxClientDataType type)
+ {
+ if ( items.IsEmpty() )
+ return wxNOT_FOUND;
+
+ return DoAppendItems(items, clientData, type);
+ }
+
+ int AppendItems(const wxArrayStringsAdapter& items)
+ {
+ return AppendItems(items, NULL, wxClientData_None);
+ }
+
+ int AppendItems(const wxArrayStringsAdapter& items, void **clientData)
+ {
+ 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( GetClientDataType() != wxClientData_Void,
+ wxT("can't mix different types of client data") );
+
+ return AppendItems(items, reinterpret_cast<void **>(clientData),
+ wxClientData_Object);
+ }
+
+ int InsertItems(const wxArrayStringsAdapter& items,
+ unsigned int pos,
+ void **clientData,
+ wxClientDataType type)
+ {
+ wxASSERT_MSG( !IsSorted(), wxT("can't insert items in sorted control") );
+
+ wxCHECK_MSG( pos <= GetCount(), wxNOT_FOUND,
+ 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,
+ wxT("need something to insert") );
+
+ return DoInsertItems(items, pos, clientData, type);
+ }
+
+ int InsertItems(const wxArrayStringsAdapter& items, unsigned int pos)
+ {
+ return InsertItems(items, pos, NULL, wxClientData_None);
+ }
+
+ int InsertItems(const wxArrayStringsAdapter& items,
+ unsigned int pos,
+ void **clientData)
+ {
+ wxASSERT_MSG( GetClientDataType() != wxClientData_Object,
+ wxT("can't mix different types of client data") );
+
+ return InsertItems(items, pos, clientData, wxClientData_Void);
+ }
+
+ int InsertItems(const wxArrayStringsAdapter& items,
+ unsigned int pos,
+ wxClientData **clientData)
+ {
+ wxASSERT_MSG( GetClientDataType() != wxClientData_Void,
+ wxT("can't mix different types of client data") );
+
+ return InsertItems(items, pos,
+ reinterpret_cast<void **>(clientData),
+ wxClientData_Object);
+ }
+
public:
wxItemContainer() { m_clientDataItemsType = wxClientData_None; }
virtual ~wxItemContainer();
// adding items
// ------------
+ // append single item, return its position in the control (which can be
+ // different from the last one if the control is sorted)
int Append(const wxString& item)
- { return DoAppend(item); }
+ { return AppendItems(item); }
int Append(const wxString& item, void *clientData)
- { int n = DoAppend(item); SetClientData(n, clientData); return n; }
+ { return AppendItems(item, &clientData); }
int Append(const wxString& item, wxClientData *clientData)
- { int n = DoAppend(item); SetClientObject(n, clientData); return n; }
-
- // only for rtti needs (separate name)
- void AppendString( const wxString& item)
- { Append( item ); }
-
- // append several items at once to the control
- void Append(const wxArrayString& strings);
-
+ { return AppendItems(item, &clientData); }
+
+ // append several items at once to the control, return the position of the
+ // last item appended
+ int Append(const wxArrayString& items)
+ { return AppendItems(items); }
+ int Append(const wxArrayString& items, void **clientData)
+ { return AppendItems(items, clientData); }
+ int Append(const wxArrayString& items, wxClientData **clientData)
+ { return AppendItems(items, clientData); }
+ int Append(unsigned int n, const wxString *items)
+ { return AppendItems(wxArrayStringsAdapter(n, items)); }
+ int Append(unsigned int n, const wxString *items, void **clientData)
+ { return AppendItems(wxArrayStringsAdapter(n, items), clientData); }
+ int Append(unsigned int n,
+ const wxString *items,
+ wxClientData **clientData)
+ { return AppendItems(wxArrayStringsAdapter(n, items), clientData); }
+
+ // only for RTTI needs (separate name)
+ void AppendString(const wxString& item)
+ { Append(item); }
+
+
+ // inserting items: not for sorted controls!
+ // -----------------------------------------
+
+ // insert single item at the given position, return its effective position
int Insert(const wxString& item, unsigned int pos)
- { return DoInsert(item, pos); }
- int Insert(const wxString& item, unsigned int pos, void *clientData);
- int Insert(const wxString& item, unsigned int pos, wxClientData *clientData);
+ { return InsertItems(item, pos); }
+ int Insert(const wxString& item, unsigned int pos, void *clientData)
+ { return InsertItems(item, pos, &clientData); }
+ int Insert(const wxString& item, unsigned int pos, wxClientData *clientData)
+ { return InsertItems(item, pos, &clientData); }
+
+ // insert several items at once into the control, return the index of the
+ // last item inserted
+ int Insert(const wxArrayString& items, unsigned int pos)
+ { return InsertItems(items, pos); }
+ int Insert(const wxArrayString& items, unsigned int pos, void **clientData)
+ { return InsertItems(items, pos, clientData); }
+ int Insert(const wxArrayString& items,
+ unsigned int pos,
+ wxClientData **clientData)
+ { return InsertItems(items, pos, clientData); }
+ int Insert(unsigned int n, const wxString *items, unsigned int pos)
+ { return InsertItems(wxArrayStringsAdapter(n, items), pos); }
+ int Insert(unsigned int n,
+ const wxString *items,
+ unsigned int pos,
+ void **clientData)
+ { return InsertItems(wxArrayStringsAdapter(n, items), pos, clientData); }
+ int Insert(unsigned int n,
+ const wxString *items,
+ unsigned int pos,
+ wxClientData **clientData)
+ { return InsertItems(wxArrayStringsAdapter(n, items), pos, clientData); }
+
+
+ // replacing items
+ // ---------------
+
+ void Set(const wxArrayString& items)
+ { Clear(); Append(items); }
+ void Set(const wxArrayString& items, void **clientData)
+ { Clear(); Append(items, clientData); }
+ void Set(const wxArrayString& items, wxClientData **clientData)
+ { Clear(); Append(items, clientData); }
+ void Set(unsigned int n, const wxString *items)
+ { Clear(); Append(n, items); }
+ void Set(unsigned int n, const wxString *items, void **clientData)
+ { Clear(); Append(n, items, clientData); }
+ void Set(unsigned int n, const wxString *items, wxClientData **clientData)
+ { Clear(); Append(n, items, clientData); }
// deleting items
// --------------
- virtual void Clear() = 0;
- virtual void Delete(unsigned int n) = 0;
+ void Clear();
+ 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; }
- // misc
- // ----
// 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 GetClientDataType() != wxClientData_None; }
bool HasClientObjectData() const
- { return m_clientDataItemsType == wxClientData_Object; }
+ { return GetClientDataType() == wxClientData_Object; }
bool HasClientUntypedData() const
- { return m_clientDataItemsType == wxClientData_Void; }
+ { return GetClientDataType() == wxClientData_Void; }
protected:
- virtual int DoAppend(const wxString& item) = 0;
- virtual int DoInsert(const wxString& item, unsigned int pos) = 0;
-
- virtual void DoSetItemClientData(unsigned int n, void* clientData) = 0;
- virtual void* DoGetItemClientData(unsigned int n) const = 0;
- virtual void DoSetItemClientObject(unsigned int n, wxClientData* clientData) = 0;
- virtual wxClientData* DoGetItemClientObject(unsigned int n) const = 0;
+ // there is usually no need to override this method but you can do it if it
+ // is more convenient to only do "real" insertions in DoInsertItems() and
+ // to implement items appending here (in which case DoInsertItems() should
+ // call this method if pos == GetCount() as it can still be called in this
+ // case if public Insert() is called with such position)
+ virtual int DoAppendItems(const wxArrayStringsAdapter& items,
+ void **clientData,
+ wxClientDataType type)
+ {
+ return DoInsertItems(items, GetCount(), clientData, type);
+ }
+ // this method must be implemented to insert the items into the control at
+ // position pos which can be GetCount() meaning that the items should be
+ // appended; for the sorted controls the position can be ignored
+ //
+ // the derived classes typically use AssignNewItemClientData() to
+ // associate the data with the items as they're being inserted
+ //
+ // the method should return the index of the position the last item was
+ // inserted into or wxNOT_FOUND if an error occurred
+ virtual int DoInsertItems(const wxArrayStringsAdapter & items,
+ unsigned int pos,
+ void **clientData,
+ wxClientDataType type) = 0;
+
+ // before the client data is set for the first time for the control which
+ // hadn't had it before, DoInitItemClientData() is called which gives the
+ // derived class the possibility to initialize its client data storage only
+ // when client data is really used
+ virtual void DoInitItemClientData() { }
+ virtual void DoSetItemClientData(unsigned int n, void *clientData) = 0;
+ virtual void *DoGetItemClientData(unsigned int n) const = 0;
+
+ virtual void DoClear() = 0;
+ virtual void DoDeleteOneItem(unsigned int pos) = 0;
+
+
+ // methods useful for the derived classes which don't have any better way
+ // of adding multiple items to the control than doing it one by one: such
+ // classes should call DoInsertItemsInLoop() from their DoInsert() and
+ // override DoInsertOneItem() to perform the real insertion
+ virtual int DoInsertOneItem(const wxString& item, unsigned int pos);
+ int DoInsertItemsInLoop(const wxArrayStringsAdapter& items,
+ unsigned int pos,
+ void **clientData,
+ wxClientDataType type);
+
+
+ // helper for DoInsertItems(): n is the index into clientData, pos is the
+ // position of the item in the control
+ void AssignNewItemClientData(unsigned int pos,
+ void **clientData,
+ unsigned int n,
+ wxClientDataType type);
+
+ // free the client object associated with the item at given position and
+ // 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;
};
wxClientData* GetClientObject(unsigned int n) const \
{ return wxItemContainer::GetClientObject(n); }
-class WXDLLEXPORT wxControlWithItems : public wxControl, public wxItemContainer
+class WXDLLIMPEXP_CORE wxControlWithItemsBase : public wxControl,
+ public wxItemContainer
{
public:
- wxControlWithItems() { }
- virtual ~wxControlWithItems();
+ wxControlWithItemsBase() { }
// we have to redefine these functions here to avoid ambiguities in classes
// deriving from us which would arise otherwise because both base classses
void InitCommandEventWithItems(wxCommandEvent& event, int n);
private:
- DECLARE_ABSTRACT_CLASS(wxControlWithItems)
- DECLARE_NO_COPY_CLASS(wxControlWithItems)
+ wxDECLARE_NO_COPY_CLASS(wxControlWithItemsBase);
};
-
-// ----------------------------------------------------------------------------
-// inline functions
-// ----------------------------------------------------------------------------
+// define the platform-specific wxControlWithItems class
+#if defined(__WXMSW__)
+ #include "wx/msw/ctrlsub.h"
+#elif defined(__WXMOTIF__)
+ #include "wx/motif/ctrlsub.h"
+#else
+ class WXDLLIMPEXP_CORE wxControlWithItems : public wxControlWithItemsBase
+ {
+ public:
+ wxControlWithItems() { }
+
+ private:
+ DECLARE_ABSTRACT_CLASS(wxControlWithItems)
+ wxDECLARE_NO_COPY_CLASS(wxControlWithItems);
+ };
+#endif
#endif // wxUSE_CONTROLS
projects / wxWidgets.git / blobdiff