In my last post of this thread I had proposed the following script
(based on the original proposals of Jacqueline and Klaus) to position
the label of a button with an icon image:
"on mouseUp
put the icon of btn 12 into tID
put the height of img ID tID into timgheight
set the height of btn 12 to (timgheight + the textheight of btn 12)
put the height of btn 12 into tBtHeight
# the line above to simplify the following computations
put (2* (tBtHeight-(the textheight of btn 12 + the effective textsize
of btn 12))) / tBtHeight into tDivFactor
put (the height of btn 12 - the textheight of btn 12 - the effective
textsize of btn 12) / tdivfactor into tMargin
set the margins of btn 12 to 0,tMargin,0,tMargin
end mouseUp"
(Pay attention to possible line breaks in the mail).
and added:
The script above (most accurately) places the label "on top" of the
icon with any icon image height and fontsize. What we might still need
is an extra tiny "jiggle" factor that achieves another mini-adjustment
of 1 to 3 pixels.
Having arrived at that level of insight it was quite natural to conclude
that we could fine-tune the position of the label with a scrollbar that
adjusts the relevant margin items by increments of 1. This works fine
here; I will add the scrollbar (and other enhancements) to the next
version of sample stack "DynamicImageButtons".
I have also tried to automate the setting of the group rect to the
height and width of the icon image and then to set the topleft of the
group rect to the topleft of the button. You have to make certain
adjustments here that take into account that the height of a group is
greater than the original height of the control that was grouped by 8
pixels.
I did not yet find out out how to exactly synchronize the toplefts of
button and group, and I remember that there are generally problems when
you try to adjust the position of controls inside a group by script.
But of course - other than the problem of adjusting the label position -
it is quite easy to adjust the group rect manually to the size of the
icon image.
Regards,
Wilhelm Sanke
<http://www.sanke.org/MetaMedia>
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