sendViewPosition();
}
- private void adjustVertical(int offy)
+ private void adjustVertical(int newY)
{
- int oldX = vpRanges.getStartRes();
- int oldwidth = vpRanges.getViewportWidth();
- int oldY = vpRanges.getStartSeq();
- int oldheight = vpRanges.getViewportHeight();
-
if (av.getWrapAlignment())
{
- int rowSize = seqPanel.seqCanvas
- .getWrappedCanvasWidth(seqPanel.seqCanvas.getWidth());
-
- // if we're scrolling to the position we're already at, stop
- // this prevents infinite recursion of events when the scroll/viewport
- // ranges values are the same
- int newX = offy * rowSize;
- newX += oldX % rowSize; // horizontal scroll offset if any
- if ((newX == oldX) && (oldwidth == rowSize))
+ /*
+ * if we're scrolling to the position we're already at, stop
+ * this prevents infinite recursion of events when the scroll/viewport
+ * ranges values are the same
+ */
+ int oldX = vpRanges.getStartRes();
+ int oldY = vpRanges.getWrappedScrollPosition(oldX);
+ if (oldY == newY)
{
return;
}
- else if (offy > -1)
+ else if (newY > -1)
{
- // limit page up/down to one width's worth of positions
- newX = newX > oldX ? oldX + rowSize : oldX - rowSize;
+ /*
+ * limit page up/down to one width's worth of positions
+ */
+ int rowSize = vpRanges.getViewportWidth();
+ int newX = newY > oldY ? oldX + rowSize : oldX - rowSize;
vpRanges.setViewportStartAndWidth(newX, rowSize);
}
}
else
{
int height = seqPanel.seqCanvas.getHeight() / av.getCharHeight();
+ int oldY = vpRanges.getStartSeq();
+ int oldheight = vpRanges.getViewportHeight();
// if we're scrolling to the position we're already at, stop
// this prevents infinite recursion of events when the scroll/viewport
// ranges values are the same
- if ((offy == oldY) && (height == oldheight))
+ if ((newY == oldY) && (height == oldheight))
{
return;
}
- vpRanges.setViewportStartAndHeight(offy, height);
+ vpRanges.setViewportStartAndHeight(newY, height);
}
if (av.getWrapAlignment() || !fastPaint)
{
}
- /*
+ /**
* Set vertical scroll bar parameters for wrapped panel
- * @param res
- * the residue to scroll to
+ *
+ * @param topLeftColumn
+ * the column position at top left (0..)
*/
- private void setScrollingForWrappedPanel(int res)
+ private void setScrollingForWrappedPanel(int topLeftColumn)
{
- // get the width of the alignment in residues
- int maxwidth = av.getAlignment().getWidth();
- if (av.hasHiddenColumns())
- {
- maxwidth = av.getAlignment().getHiddenColumns()
- .findColumnPosition(maxwidth) - 1;
- }
+ int scrollPosition = vpRanges.getWrappedScrollPosition(topLeftColumn);
+ int maxScroll = vpRanges.getWrappedScrollPosition(vpRanges
+ .getVisibleAlignmentWidth() - 1);
- // get the width of the canvas in residues
- int canvasWidth = seqPanel.seqCanvas
- .getWrappedCanvasWidth(seqPanel.seqCanvas.getSize().width);
- if (canvasWidth > 0)
- {
- // position we want to scroll to is number of canvasWidth's to get there
- int current = res / canvasWidth;
-
- // max scroll position: add one because extent is 1 and scrollbar value
- // can only be set to at most max - extent
- int max = maxwidth / canvasWidth + 1;
- vscroll.setUnitIncrement(1);
- vscroll.setValues(current, 1, 0, max);
- }
+ vscroll.setUnitIncrement(1);
+ vscroll.setValues(scrollPosition, 1, 0, maxScroll);
}
protected Panel sequenceHolderPanel = new Panel();