Geoff Canyon wrote:
On Wed, Aug 14, 2013 at 9:34 AM, Richard Gaskin wrote:
The tabstops property requires absolute metrics from the left edge of the
control; that is, each item is the complete measure from that edge, e.g.:
100,150,225
I've never found this to be the case. I just opened up LC 5.0, created a
field with text and tabs in it, and in the message box typed:
set the tabstops of fld 1 to 200,100,150,75
No crash, and the text formatted the way I expected. Now if I type in the
message box:
put the tabstops of fld 1
I get:
200,300,450,525
Which is exactly what I expected; the first value was taken literally, and
the rest were incremental. For kicks, I tried:
set the tabstops of fld 1 to 200,100,250,675
and then
put the tabstops of fld 1
gets me:
200,300,550,675
Which means that the first value was absolute, the next two relative even
though the third was larger than either of the first two (but not larger
than their sum), and the last, which was larger than the sum of the three
previous, was again absolute.
You really expected the value coming back to be different from what you
set it to?
If you set the text of a field to "Hello", do you expect getting the
text from the field to yield "World"? ;)
It seems the engine is being very graceful in allowing both relative and
absolute values as input for the tabStops, but ultimately the values
that get stored are the absolute ones.
If that weren't the case it would mean that Mark Waddingham wasted his
time adding the tabWidth property, and I don't think I've ever seen Mark
willfully waste his time.
Now I'm wondering what the engine does with values in which each column
is larger than the last. That is, if you set the tabstops to this:
100,150,200
...do you get this back:
100,250,450
..or:
100,150,200
?
--
Richard Gaskin
Fourth World
LiveCode training and consulting: http://www.fourthworld.com
Webzine for LiveCode developers: http://www.LiveCodeJournal.com
Follow me on Twitter: http://twitter.com/FourthWorldSys
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