Don't cache the best size until we get a non-zero value back from the

[wxWidgets.git] / samples / widgets / listbox.cpp

diff --git a/samples/widgets/listbox.cpp b/samples/widgets/listbox.cpp
index 90de90af978ff3dcacfd60bf4172c59c48a064d6..b189d3b22b55ba4915f9defc7542b6b26814c602 100644 (file)
--- a/samples/widgets/listbox.cpp
+++ b/samples/widgets/listbox.cpp
@@ -81,6 +81,9 @@ public:
     virtual wxControl *GetWidget() const { return m_lbox; }
     virtual void RecreateWidget() { CreateLbox(); }
 
+    // lazy creation of the content
+    virtual void CreateContent();
+
 protected:
     // event handlers
     void OnButtonReset(wxCommandEvent& event);
@@ -142,7 +145,13 @@ protected:
                *m_chkOwnerDraw;
 
     // the listbox itself and the sizer it is in
-    wxListBoxBase *m_lbox;
+#ifdef __WXWINCE__
+    wxListBoxBase
+#else
+    wxListBox
+#endif
+                  *m_lbox;
+
     wxSizer *m_sizerLbox;
 
     // the text entries for "Add/change string" and "Delete" buttons
@@ -205,10 +214,8 @@ IMPLEMENT_WIDGETS_PAGE(ListboxWidgetsPage, _T("Listbox"),
 
 ListboxWidgetsPage::ListboxWidgetsPage(WidgetsBookCtrl *book,
                                        wxImageList *imaglist)
-                  : WidgetsPage(book)
+                  : WidgetsPage(book, imaglist, listbox_xpm)
 {
-    imaglist->Add(wxBitmap(listbox_xpm));
-
     // init everything
     m_radioSelMode = (wxRadioBox *)NULL;
 
@@ -218,9 +225,13 @@ ListboxWidgetsPage::ListboxWidgetsPage(WidgetsBookCtrl *book,
     m_chkSort =
     m_chkOwnerDraw = (wxCheckBox *)NULL;
 
-    m_lbox = (wxListBoxBase *)NULL;
+    m_lbox = NULL;
     m_sizerLbox = (wxSizer *)NULL;
 
+}
+
+void ListboxWidgetsPage::CreateContent()
+{
     /*
        What we create here is a frame having 3 panes: style pane is the
        leftmost one, in the middle the pane with buttons allowing to perform