don't reserve space in the header for the column image if there is none (patch 1225522)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@34970 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -27,6 +27,7 @@ wxMSW:
 - Fixed wxSlider::GetSelEnd() (Atilim Cetin).
 - Fixed accelerators of menu items added to already attached submenus.
 - Position of wxEVT_MOUSEWHEEL events is now in client, not screen, coordinates.
+- Handle absence of wxListCtrl column image better (Zbigniew Zag<61>rski)
 
 wxWinCE:
 

src/msw/listctrl.cpp

@@ -2828,6 +2828,7 @@ static void wxConvertToMSWListCol(int WXUNUSED(col), const wxListItem& item,
             //
             // we don't use LVCFMT_COL_HAS_IMAGES because it doesn't seem to
             // make any difference in my tests -- but maybe we should?
+            if ( item.m_image != -1 )
                 lvCol.fmt |= LVCFMT_BITMAP_ON_RIGHT | LVCFMT_IMAGE;
 
             lvCol.iImage = item.m_image;