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Simple Divition/Multiplication help needed

Jimmy Nilsson
Greenhorn

Joined: Sep 25, 2004
Posts: 26
Hey

I have Two JTextPanes that may contain diffrent amopunt of text. To this JTextPane i have JScroolPanes.

I Want the ScroolPanes to be syncroniced and when scroll1 is on location 75% then Scroll2 shold also be on the 75%.

I have problem with doing the math of this, the variabels dont simes to be abled to save fractions?

Code:

double tmpMScrool = scrollbar1.getVerticalScrollBar().getValue();
double tmpMScroolMax = scrollbar1.getVerticalScrollBar().getMaximum();

double ScrollCount = (double)tmpMScrool/(double)tmpMScroolMax;

ScrollCount = (double)scrollbar2.getVerticalScrollBar().getValue() * (double)ScrollCount;

//After this the ScrollCount is 0???

scrollbar2.getVerticalScrollBar().setValue((int)ScrollCount);

What is the problem here?

Best Regards
SnowJim
Peter Chase
Ranch Hand

Joined: Oct 30, 2001
Posts: 1970
I'm not totally sure, but I think that your problem may be that you are using getValue() on scrollbar2, rather than getMaximum().

You certainly don't need most of those casts to "double". They aren't doing anything.


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Jimmy Nilsson
Greenhorn

Joined: Sep 25, 2004
Posts: 26
Thanks, dident notice that with the maximum, ofcourse i shold use that one.

SOLVED!
 
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subject: Simple Divition/Multiplication help needed