private void setScrollingForWrappedPanel(int topLeftColumn)
{
int scrollPosition = vpRanges.getWrappedScrollPosition(topLeftColumn);
- int maxScroll = vpRanges.getWrappedScrollPosition(vpRanges
- .getVisibleAlignmentWidth() - 1);
+ int maxScroll = vpRanges.getWrappedMaxScroll(topLeftColumn);
+ /*
+ * a scrollbar's value can be set to at most (maximum-extent)
+ * so we add extent (1) to the maxScroll value
+ */
vscroll.setUnitIncrement(1);
- vscroll.setValues(scrollPosition, 1, 0, maxScroll);
+ vscroll.setValues(scrollPosition, 1, 0, maxScroll + 1);
}
/**