File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
http://aspose.com/file-tools
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

Simple Divition/Multiplication help needed

 
Jimmy Nilsson
Greenhorn
Posts: 26
  • 0
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
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
Posts: 1970
  • 0
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
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.
 
Jimmy Nilsson
Greenhorn
Posts: 26
  • 0
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks, dident notice that with the maximum, ofcourse i shold use that one.

SOLVED!
 
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic