On 12 Jan 2006, at 18:20, Dave Cragg wrote:
On 12 Jan 2006, at 16:16, Mark Swindell wrote:
I'm looking for the location of the formatted line, or its
coordinates relative the field, so that I can place a graphic (an
underline or somesuch) under the text of that formatted line.
This has to be derived from the mouse position relative to the
formatted line position as this graphic will move based on where
the mouse is.
Not perfect, but something like this in the field script (graphic 1
is the graphic to be moved):
on mouseMove
put the mouseChunk into tMC
if tMC <> empty then
get the formattedRect of tMC
set the top of graphic 1 to item 4 of it
end if
end mouseMove
I'm assuming the graphic width would be set to the width of the field.
One limitation is that when the mouse moves over empty space at the
end of a line, the mouseChunk returns empty. I can't think of a way
round that.
Perhaps with something like the following? Seem to remember it worked
out :)
1) Use the mouseline to get the line number you need
2) Lock the screen
3) Select the text of the field after the end of the line number
4) Use the selectedLoc to figure out the position of the bottom
of the wrapped line
5) You can use a similar technique for the top or work it out
using the textHeight and line number calculations.
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