Patch from Hartwig and me for implementing reorderable dataview columns. Works on OS X and GTK+, breaks OS X a litte

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50919 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/dataviewcolumn.tex

@@ -82,6 +82,12 @@ Returns the renderer of this wxDataViewColumn.
 
 See also \helpref{wxDataViewRenderer}{wxdataviewrenderer}.
 
+\membersection{wxDataViewColumn::GetReorderable}\label{wxdataviewcolumngetreorderable}
+
+\func{bool}{GetReorderable}{\void}
+
+Returns true if the column is reorderable.
+
 \membersection{wxDataViewColumn::GetSortable}\label{wxdataviewcolumngetsortable}
 
 \func{bool}{GetSortable}{\void}
@@ -116,6 +122,14 @@ Set the alignment of the column header.
 
 Set the bitmap of the column header.
 
+\membersection{wxDataViewColumn::SetReorderable}\label{wxdataviewcolumnsetreorderable}
+
+\func{void}{SetReorderable}{\param{bool }{reorderable}}
+
+Indicate wether the column can be reordered by the
+user using the mouse. This is typically implemented 
+visually by dragging the header button around.
+
 \membersection{wxDataViewColumn::SetSortOrder}\label{wxdataviewcolumnsetsortorder}
 
 \func{void}{SetSortOrder}{\param{bool }{ascending}}