Applied John L's patches for curson scaling, image resizing

without scaling and the art provider resize bitmap patch.
    I'll look into adapting the generic file dialog to it.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32598 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/rect.tex

@@ -239,6 +239,14 @@ Returns {\tt true} if this rectangle has a non empty intersection with the
 rectangle {\it rect} and {\tt false} otherwise.
 
 
+\membersection{wxRect::IsEmpty}\label{wxrectisempty}
+
+\constfunc{bool}{IsEmpty}{}
+
+Returns {\tt true} if this rectangle has a width or height less than or equal to 
+0 and {\tt false} otherwise.
+
+
 \membersection{wxRect::Offset}\label{wxrectoffset}
 
 \func{void}{Offset}{\param{wxCoord }{dx}, \param{wxCoord }{dy}}