Transparent
Richmond Mathewson geradamas at yahoo.com wrote:
Working from your advice I wrote the following script:
on mouseUp
put top of group "gX" into TOPP
put bottom of group "gX" into BUM
put left of group "gX" into LEFTT
put right of group "gX" into RITE
put LEFTT & "," & TOPP & "," & RITE & "," & BUM into fld "fRECT"
put fld "fRECT" into FRECT
put the windowID of this stack into WINDY
set the fileType to empty
export snapshot from rect FRECT of window WINDY to img "HOLDER"
as PNG
set the alphaData of img "HOLDER" to the alphaData of img "TRANS"
export img "HOLDER" to file "GOTTIT.png" as PNG
end mouseUp
where the group "gX" contains an odd-shaped image and a transparent
button.
Everything works well until:
set the alphaData of img "HOLDER" to the alphaData of img "TRANS"
which makes ALL of the image "HOLDER" transparent!
If you group a field or another object its dimensions are different from
the rect of the original field. However, to apply imagedata or alphadata
from one object to the other both objects must possess exactly the same
dimensions.
What does "transparent button" mean in your case? "opaque" set to false?
I thought your aim was
- to place text on an image
- and then later to integrate this text image as an icon in a button.
This could be achieved by placing a graphic or field with text over the
image.
The rect of the graphic or field must be equal or smaller than that of
the image and it must be inside the rect of the image.
There is no need to group graphic and image at this point.
Then you can use
"export snapshot from rect(the rect of img "trans") of this card to img
"placeholder" as PNG
set the alphadata of img "Placeholder" to the alphadata of img "trans""
Only these two short lines are needed.
====================
I have to start to pack my luggage now.
Best regards,
Wilhelm Sanke
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