Various wxCollapsiblePane enhancements (re-patch 1577412):

1. wxUSE_COLLPANE added
2. XRC handler added
3. flicker fixes for the generic version
4. sizing fixes for GTK+ version
5. RTL fixes for the generic version (via wxBoxSizer)
6. better appearance under Mac for the generic version


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42759 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/collpane.tex

@@ -13,6 +13,14 @@
 A collapsable panel is a container with an embedded button-like control which can be
 used by the user to collapse or expand the pane's contents.
 
+Note that because of its nature of control which can dynamically (and drastically)
+change its size at run-time under user-input, when putting wxCollapsiblePane inside
+a \helpref{wxSizer}{wxsizer} you should be careful to add it with a proportion value
+of zero; this is because otherwise all other windows with non-null proportion values
+would automatically get resized each time the user expands or collaps the pane window.
+
+It is only available if \texttt{wxUSE\_COLLPANE} is set to $1$ (the default).
+
 \wxheading{Derived from}
 
 \helpref{wxControl}{wxcontrol}\\
@@ -26,9 +34,18 @@ used by the user to collapse or expand the pane's contents.
 
 \wxheading{Window styles}
 
-There are no specific styles for this window.
+\twocolwidtha{5cm}%
+\begin{twocollist}\itemsep=0pt
+\twocolitem{\windowstyle{wxCP\_DEFAULT\_STYLE}}{The default style: 0.}
+\end{twocollist}
+
+\wxheading{Event handling}
+
+\twocolwidtha{7cm}%
+\begin{twocollist}\itemsep=0pt
+\twocolitem{{\bf EVT\_COLLAPSIBLEPANE\_CHANGED(id, func)}}{The user showed or hidden the collapsible pane. }
+\end{twocollist}
 
-See also \helpref{window styles overview}{windowstyles}.
 
 \wxheading{See also}