[Pythoncard-users] findFiles update, wrapped lines, platform specific options

Time for the morning ramble...

I've been doing lots of cleanup in the framework and samples.

I hadn't looked at the findFiles sample since I first slapped it together
and it wouldn't even run. This is one of those samples that I found useful,
but I stopped using it because I wanted it to do a lot more and got out of
the habit of using it. Now it not only works (or should work), but it can
open and save .grep files just like the PythonWin IDE. I also added a
feature to load a file with the textEditor sample and jump to a particular
line when you double-click on line in the result list. So, now the sample is
at least useful again (okay, useful to me).

It turns out that the following methods in the wxPython wxTextCtrl (the
PythonCard versions of these methods are in parens:
  GetNumberOfLines (getNumberOfLines)
  GetLineLength    (getLineLength)
  GetLineText      (getLineText)
  PositionToXY     (positionToXY)
  XYToPosition     (xyToPosition)

all count a wrapped line in their calculations under Windows, but not on
Linux; the Linux wxTextCtrl does all its calculations based just on
newlines. If you use the wxHSCROLL (horizontal scrollbar) style under
Windows, then text won't wrap and the method results will always match
Linux. The horizontal scrollbar does not show up under Windows unless the
longest line in the control is wider than the control width; Linux (GTK)
never shows a horizontal scrollbar.

I think I'm going to add an attribute to TextArea called "hscroll" which can
be 1 (true) or 0 (false). Under Linux, if this attribute is true it will
have no effect. I haven't added it yet, because I would prefer to have a
solution to toggle the horizontal scrollbar and wrapping and I don't know
how to pull that off. Also, I think this is the first attribute that is
Windows specific and we should probably have a clear naming convention for
platform specific methods and attributes.

For now, if you are using the textEditor sample under Windows and it goes to
the wrong line on a Go To, it is most likely because of line wrapping.

Vadim (wx-dev) confirmed that as of 2.3.2 there is no way to suppress style
info when pasting styled text or doing a drag and drop into a wxTextCtrl, so
we'll just have to live with that limitation in TextArea.

ka