Prevent crash when m_defGridAttr is NULL

[wxWidgets.git] / include / wx / listbox.h

diff --git a/include/wx/listbox.h b/include/wx/listbox.h
index 628ee836641e70017646bbaaa43d9fb3965435e5..afe6348038eec94a85bdd781a979ab143dda383b 100644 (file)
--- a/include/wx/listbox.h
+++ b/include/wx/listbox.h
@@ -1,15 +1,147 @@
-#ifndef __LISTBOXH_BASE__
-#define __LISTBOXH_BASE__
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/listbox.h
+// Purpose:     wxListBox class interface
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     22.10.99
+// RCS-ID:      $Id$
+// Copyright:   (c) wxWindows team
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
 
-#if defined(__WXMSW__)
-#include "wx/msw/listbox.h"
+#ifndef _WX_LISTBOX_H_BASE_
+#define _WX_LISTBOX_H_BASE_
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#ifdef __GNUG__
+    #pragma interface "listboxbase.h"
+#endif
+
+#include "wx/defs.h"
+
+#if wxUSE_LISTBOX
+
+#include "wx/ctrlsub.h"         // base class
+
+// forward declarations are enough here
+class WXDLLEXPORT wxArrayInt;
+class WXDLLEXPORT wxArrayString;
+
+// ----------------------------------------------------------------------------
+// global data
+// ----------------------------------------------------------------------------
+
+WXDLLEXPORT_DATA(extern const wxChar*) wxListBoxNameStr;
+
+// ----------------------------------------------------------------------------
+// wxListBox interface is defined by the class wxListBoxBase
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxListBoxBase : public wxControlWithItems
+{
+public:
+    // all generic methods are in wxControlWithItems, except for the following
+    // ones which are not yet implemented by wxChoice/wxCombobox
+#ifdef __DARWIN__
+    virtual ~wxListBoxBase() { }
+#endif
+
+    void Insert(const wxString& item, int pos)
+        { DoInsert(item, pos); }
+    void Insert(const wxString& item, int pos, void *clientData)
+        { DoInsert(item, pos); SetClientData(pos, clientData); }
+    void Insert(const wxString& item, int pos, wxClientData *clientData)
+        { DoInsert(item, pos); SetClientObject(pos, clientData); }
+
+    void InsertItems(int nItems, const wxString *items, int pos);
+    void InsertItems(const wxArrayString& items, int pos)
+        { DoInsertItems(items, pos); }
+
+    void Set(int n, const wxString* items, void **clientData = NULL);
+    void Set(const wxArrayString& items, void **clientData = NULL)
+        { DoSetItems(items, clientData); }
+
+    // multiple selection logic
+    virtual bool IsSelected(int n) const = 0;
+    virtual void SetSelection(int n, bool select = TRUE) = 0;
+    virtual void Select(int n) { SetSelection(n, TRUE); }
+    void Deselect(int n) { SetSelection(n, FALSE); }
+    void DeselectAll(int itemToLeaveSelected = -1);
+
+    virtual bool SetStringSelection(const wxString& s, bool select = TRUE);
+
+    // works for single as well as multiple selection listboxes (unlike
+    // GetSelection which only works for listboxes with single selection)
+    virtual int GetSelections(wxArrayInt& aSelections) const = 0;
+
+    // set the specified item at the first visible item or scroll to max
+    // range.
+    void SetFirstItem(int n) { DoSetFirstItem(n); }
+    void SetFirstItem(const wxString& s);
+
+    // ensures that the given item is visible scrolling the listbox if
+    // necessary
+    virtual void EnsureVisible(int n);
+
+    // a combination of Append() and EnsureVisible(): appends the item to the
+    // listbox and ensures that it is visible i.e. not scrolled out of view
+    void AppendAndEnsureVisible(const wxString& s);
+
+    // return TRUE if the listbox allows multiple selection
+    bool HasMultipleSelection() const
+    {
+        return (m_windowStyle & wxLB_MULTIPLE) ||
+               (m_windowStyle & wxLB_EXTENDED);
+    }
+
+    // return TRUE if this listbox is sorted
+    bool IsSorted() const { return (m_windowStyle & wxLB_SORT) != 0; }
+
+    // emulate selecting or deselecting the item event.GetInt() (depending on
+    // event.GetExtraLong())
+    void Command(wxCommandEvent& event);
+
+    // compatibility - these functions are deprecated, use the new ones
+    // instead
+    bool Selected(int n) const { return IsSelected(n); }
+
+protected:
+    // NB: due to wxGTK implementation details, DoInsert() is implemented
+    //     using DoInsertItems() and not the other way round
+    void DoInsert(const wxString& item, int pos)
+        { InsertItems(1, &item, pos); }
+
+    // to be implemented in derived classes
+    virtual void DoInsertItems(const wxArrayString& items, int pos) = 0;
+    virtual void DoSetItems(const wxArrayString& items, void **clientData) = 0;
+
+    virtual void DoSetFirstItem(int n) = 0;
+};
+
+// ----------------------------------------------------------------------------
+// include the platform-specific class declaration
+// ----------------------------------------------------------------------------
+
+#if defined(__WXUNIVERSAL__)
+    #include "wx/univ/listbox.h"
+#elif defined(__WXMSW__)
+    #include "wx/msw/listbox.h"
 #elif defined(__WXMOTIF__)
-#include "wx/xt/listbox.h"
+    #include "wx/motif/listbox.h"
 #elif defined(__WXGTK__)
-#include "wx/gtk/listbox.h"
-#elif defined(__WXQT__)
-#include "wx/qt/listbox.h"
+    #include "wx/gtk/listbox.h"
+#elif defined(__WXMAC__)
+    #include "wx/mac/listbox.h"
+#elif defined(__WXPM__)
+    #include "wx/os2/listbox.h"
+#elif defined(__WXSTUBS__)
+    #include "wx/stubs/listbox.h"
 #endif
 
+#endif // wxUSE_LISTBOX
+
 #endif
-    // __LISTBOXH_BASE__
+    // _WX_LISTBOX_H_BASE_