On Fri Aug 6, 2010, Richard Gaskin ambassador at fourthworld.com
Wilhelm Sanke wrote:
> Actually, there are at least two bugs: The problem of "setting" the loc
> and that of "keeping" the loc - although the lockloc of the image is set
> to true. "Lockloc" in the context of the definition above is also
broken.
> After having succesfully centered the image, it will - as reported -
> revert to a topleft position in the group
Yes, with the default dynamic behavior of groups this is what most folks
will experience. But some time ago I needed more canvas-like behaviors,
and Scott Raney accommodated me by adding the boundingRect property for
groups.
Similar to SuperCard's backSize property, the boundingRect lets you
define a rect for the scrollable area of a group regardless of its
contents.
--
Richard Gaskin
Richard,
Thanks for this really valuable information.
"set the boundingrect of group x to the rect of group x" solves the
complete list of problems, the "setting" and "keeping" bugs are no
longer interfering and all side effects have gone away - like with the
magic button, but with even less effort.
They must be a great amount of similarities between what the
boundingrect and the magic button achieve, and if the Rev engineers
will still try to fix the "set the loc" bug they should also look how
the boundingrect is coded in the engine.
The Revolution docs/dictionary should be updated to reflect the
dependency of "set the loc" in groups on the "boundingrect" property.
Regards and many thanks,
Wilhelm
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