X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/170acdc90e9f92f8b8120fa6c04acdbf45c89582..1cf57808cb146742378d24faa77b9e9482c86b2b:/include/wx/ctrlsub.h diff --git a/include/wx/ctrlsub.h b/include/wx/ctrlsub.h index 9939f9a7df..453fe43438 100644 --- a/include/wx/ctrlsub.h +++ b/include/wx/ctrlsub.h @@ -16,6 +16,7 @@ #if wxUSE_CONTROLS +#include "wx/arrstr.h" #include "wx/control.h" // base class // ---------------------------------------------------------------------------- @@ -72,7 +73,7 @@ public: 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 @@ -80,14 +81,109 @@ public: 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(); } }; +// ---------------------------------------------------------------------------- +// 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 WXDLLEXPORT 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, + _T("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, + _T("can't mix different types of client data") ); + + return AppendItems(items, wx_reinterpret_cast(void **, clientData), + wxClientData_Object); + } + + int InsertItems(const wxArrayStringsAdapter& items, + unsigned int pos, + void **clientData, + wxClientDataType type) + { + wxASSERT_MSG( !IsSorted(), _T("can't insert items in sorted control") ); + + wxCHECK_MSG( pos <= GetCount(), wxNOT_FOUND, + _T("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") ); + + 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, + _T("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, + _T("can't mix different types of client data") ); + + return InsertItems(items, pos, + wx_reinterpret_cast(void **, clientData), + wxClientData_Object); + } + public: wxItemContainer() { m_clientDataItemsType = wxClientData_None; } virtual ~wxItemContainer(); @@ -95,56 +191,201 @@ public: // 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; void SetClientObject(unsigned int n, wxClientData* clientData); wxClientData* GetClientObject(unsigned int n) const; + // 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; }; @@ -171,11 +412,11 @@ protected: wxClientData* GetClientObject(unsigned int n) const \ { return wxItemContainer::GetClientObject(n); } -class WXDLLEXPORT wxControlWithItems : public wxControl, public wxItemContainer +class WXDLLEXPORT 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 @@ -196,14 +437,25 @@ protected: void InitCommandEventWithItems(wxCommandEvent& event, int n); private: - DECLARE_ABSTRACT_CLASS(wxControlWithItems) - DECLARE_NO_COPY_CLASS(wxControlWithItems) + DECLARE_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 WXDLLEXPORT wxControlWithItems : public wxControlWithItemsBase + { + public: + wxControlWithItems() { } + + private: + DECLARE_ABSTRACT_CLASS(wxControlWithItems) + DECLARE_NO_COPY_CLASS(wxControlWithItems) + }; +#endif #endif // wxUSE_CONTROLS