Flashing text

[Greg Osenbach]

David,
I was really hoping that there was some sort of SlideText.Blink or something
easy that I missed.  Oh well, I'll see what I can do and let you guys know
what I come up with.


Thanks,
Greg

On Wed, Mar 4, 2009 at 9:45 PM, David McFarlane <mcfarla9 at msu.edu> wrote:

>
> Greg,
>
> I think things are about as messy as you fear, but I hope someone else
> has a better answer (or you come up with one yourself and then enlighten
> the rest of us).  I only want to remind you of a couple items that you
> may have already seen in your reading of the online E-Basic Help and
> that you might use as building blocks for your solution.
>
> It looks like you are thinking of fiddling with the properties of the
> slide sub-objects.  If you do this in a script loop, then you might be
> able to use the slide .Draw method (as opposed to .Run) to just redraw
> the modified slide and not affect anything else.  Even better, visual
> slide sub-objects have their own .Draw method, so perhaps you can use
> that in script to redraw just the relevant sub-object after making your
> changes.  I have never explored any of this, so I would be interested to
> know if this works.  As far as keeping track of the state of each
> sub-object, if you do not want to do that in variables or an array, you
> might try changing some property of the sub-object that has no visible
> effect for your slide, e.g., change .BackStyle from opaque to
> transparent, or change .BorderColor while leaving .BorderWidth at 0.
>
> Digging deeper, you can even make direct use of the Canvas object.  In
> fact, when you think of it, all the visual objects are just shortcuts to
> the Canvas object (which in turn is a shortcut to the DisplayDevice
> object).  So you can think of visual display objects in a hierarchy:
> the Slide object acts as a container for handling Text and Image
> objects, and Text and Image objects act as containers for the operations
> that they perform on a Canvas object.  We can always do things directly
> on the Canvas, but that rather defeats the whole purpose of E-Prime, so
> I would generally discourage that.  But for some situations that is the
> best solution.  (Sorry for the didactic digression.)
>
> So yes, I might marshal these tools in some loop, whether looping with a
> List or inline script with an explicit Do...Loop (please do not use
> While...Wend, that went out with the Commodore 64).  (Oh, and for
> something really whacky, you can split up the Do.. and the ..Loop in two
> inline script objects that surround some EP design objects in your
> Procedure, though so far I have never had to resort to that myself.)
>
> But after all that I get the feeling that I have missed your real
> question, because I think you already have the slide in a loop via a
> List object and know how to modify the properties you need, and you just
> want some help with the conditional structure.  Sorry about that.
>
> -- David McFarlane, Professional Faultfinder
>
>
> On Tuesday 3 March 2009 at 7:50 p.m. Greg Osenbach wrote:
> > Does anyone out there know a good way to make text on a slide flash?  I
> > have several text items on a slide that gets looped through based on
> > responses.  For every item in the list the slide may be looped through
> > up to 10 times before moving on to the next list item.  One the the text
> > objects on the page only change when moving to a new list entry.  I
> > would like to make the text flash once to notify the subject that that
> > portion changed.
> >
> > I have though about setting up a small loop around the slide with some
> > gotos and some labels and using SlideText1.ForeColor.  Basically setting
> > a boolean flag for FirstPass, changing the text color and setting the
> > slide to time out for 400ms or something.  then doing a check and if
> > First Pass is True, change the text to black and then jump to a label
> > above the slide and setting the timeout back to infinate.  Again after
> > the slide, check the flag and if false, then do not go back up to the
> label.
> >
> > This looks like a bit of a rube goldberg machine to me.  There has got
> > to be a simpler way.  I just am not sure what it is.
> >
> > Ideas?
> >
> > Thanks,
> > Greg
>
>
> >
>

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