X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/50c375d311ac4cefbf1ae1d11e19c9e7c00a873e..40779a03e7745fede941ac1a55eb26c062dfa086:/src/msw/listbox.cpp

diff --git a/src/msw/listbox.cpp b/src/msw/listbox.cpp
index 7220cf5ef1..6e786a20fc 100644
--- a/src/msw/listbox.cpp
+++ b/src/msw/listbox.cpp
@@ -50,7 +50,7 @@
 #ifndef __TWIN32__
     #if defined(__GNUWIN32__)
         #ifndef wxUSE_NORLANDER_HEADERS
-            #include <wx/msw/gnuwin32/extra.h>
+            #include "wx/msw/gnuwin32/extra.h"
         #endif
     #endif
 #endif
@@ -230,7 +230,7 @@ bool wxListBox::Create(wxWindow *parent,
 
 wxListBox::~wxListBox()
 {
-//    Free();
+    Free();
 }
 
 void wxListBox::SetupColours()
@@ -256,15 +256,15 @@ void wxListBox::Delete(int N)
     wxCHECK_RET( N >= 0 && N < m_noItems,
                  wxT("invalid index in wxListBox::Delete") );
 
-#if wxUSE_OWNER_DRAWN
-    delete m_aItems[N];
-    m_aItems.Remove(N);
-#else // !wxUSE_OWNER_DRAWN
-    if ( HasClientObjectData() )
-    {
-        delete GetClientObject(N);
-    }
-#endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN
+    // for owner drawn objects, the data is used for storing wxOwnerDrawn
+    // pointers and we shouldn't touch it
+#if !wxUSE_OWNER_DRAWN
+    if ( !(m_windowStyle & wxLB_OWNERDRAW) )
+#endif // !wxUSE_OWNER_DRAWN
+        if ( HasClientObjectData() )
+        {
+            delete GetClientObject(N);
+        }
 
     SendMessage(GetHwnd(), LB_DELETESTRING, N, 0);
     m_noItems--;
@@ -348,7 +348,7 @@ int wxListBox::FindString(const wxString& s) const
 
 void wxListBox::Clear()
 {
-//    Free();
+    Free();
 
     ListBox_ResetContent(GetHwnd());
 
@@ -356,7 +356,6 @@ void wxListBox::Clear()
     SetHorizontalExtent();
 }
 
-/*
 void wxListBox::Free()
 {
 #if wxUSE_OWNER_DRAWN
@@ -379,7 +378,7 @@ void wxListBox::Free()
         }
     }
 }
-*/
+
 void wxListBox::SetSelection(int N, bool select)
 {
     wxCHECK_RET( N >= 0 && N < m_noItems,
@@ -748,13 +747,19 @@ bool wxListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
 
     MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item;
 
+    HDC hdc = CreateIC(wxT("DISPLAY"), NULL, NULL, 0);
+
     wxDC dc;
-    dc.SetHDC((WXHDC)CreateIC(wxT("DISPLAY"), NULL, NULL, 0));
+    dc.SetHDC((WXHDC)hdc);
     dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_ANSI_VAR_FONT));
 
     pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE;
     pStruct->itemWidth  = dc.GetCharWidth();
 
+    dc.SetHDC(0);
+
+    DeleteDC(hdc);
+
     return TRUE;
 }