Richard, et al:
In my WebMerge product, the main task focuses around a complex process
that can take several minutes to complete. In older versions I had my
progress bar set to increment once through each item in my loop.
Later I found that if I only update it every 20th time through the
loop the
smoothness of the progress bar was nearly the same -- but overall
performance nearly doubled! That one line of code for the OS to
update the progress bar was costing as much as 500 lines of data
slicing and dicing.
Which is why all my progress bars calculate the number of iterations
necessary to move the bar one position and update the thumbPosition
only when it will change:
put 0 into recordsProcessed
put round(recordCount/(the width of scrollBar "Progress
Scrollbar")) into progressInterval
put max(1,progressInterval) into progressInterval
repeat with x=4 to lastRecord
... -- process one record
add 1 to recordsProcessed
if (recordsProcessed mod progressInterval)=0 then set the
thumbPosition of scrollBar "Progress Scrollbar" to recordsProcessed
end repeat
Rob Cozens
CCW, Serendipity Software Company
"And I, which was two fooles, do so grow three;
Who are a little wise, the best fooles bee."
from "The Triple Foole" by John Donne (1572-1631)
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