1. wxStaticLine implemented (generic (ugly) and MSW versions)

2. wxTextDialog looks fine under MSW again
3. startup tips added: code, sample, docs
4. read-only text controls don't participate in TAB traversal


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2919 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/ttips.tex

@@ -0,0 +1,42 @@
+\section{Startup tips overview}\label{tipsoverview}
+
+Many "modern" Windows programs have a feature (some would say annoyance) of
+presenting the user tips at program startup. While this is probably useless to
+the advanced users of the program, the experience shows that the tips may be
+quite helpful for the novices and so more and more programs now do this.
+
+For a wxWindows programmer, implementing this feature is extremely easy. To
+show a tip, it's enough to just call \helpref{wxShowTip}{wxshowtip} function
+like this:
+
+\begin{verbatim}
+    if ( ...show tips at startup?... )
+    {
+        wxTipProvider *tipProvider = wxCreateFileTipProvider("tips.txt", 0);
+        wxShowTip(windowParent, tipProvider);
+        delete tipProvider;
+    }
+\end{verbatim}
+
+Of course, you need to get the text of the tips from somewhere - in the example
+above, the text is supposed to be in the file tips.txt from where it's read by
+the {\it tip provider}. The tip provider is just an object of a class deriving
+from \helpref{wxTipProvider}{wxtipprovider}. It has to implement one pure
+virtual function of the base class: \helpref{GetTip}{wxtipprovidergettip}.
+In the case of the tip provider created by 
+\helpref{wxCreateFileTipProvider}{wxcreatefiletipprovider}, the tips are just
+the lines of the text file.
+
+If you want to implement your own tip provider (for example, if you wish to
+hardcode the tips inside your program), you just have to derive another class
+from wxTipProvider and pass a pointer to the object of this class to wxShowTip
+- then you don't need wxCreateFileTipProvider at all.
+
+Finally, you will probably want to save somewhere the index of the tip last
+shown - so that the program doesn't always show the same tip on startup. As you
+also need to remember whether to show tips or not (you shouldn't do it if the
+user unchecked "Show tips on startup" checkbox in the dialog), you will
+probably want to store both the index of the
+last shown tip (as returned by 
+\helpref{wxTipProvider::GetCurrentTip}{wxtipprovidergetcurrenttip} and the flag
+telling whether to show the tips at startup at all.