{
int offset = (vpRanges.getEndRes() - vpRanges.getStartRes() + 1) / 2 - 1;
start = Math.max(start - offset, 0);
- end = Math.min(end + offset, seq.getEnd() - 1);
+ end = end + offset - 1;
+ // end = Math.min(end + offset, seq.getEnd() - 1);
}
if (start < 0)
int start = -1;
if (av.hasHiddenColumns())
{
- start = av.getColumnSelection().findColumnPosition(ostart);
- end = av.getColumnSelection().findColumnPosition(end);
+ AlignmentI al = av.getAlignment();
+ start = al.getHiddenColumns().findColumnPosition(ostart);
+ end = al.getHiddenColumns().findColumnPosition(end);
if (start == end)
{
- if (!scrollToNearest && !av.getColumnSelection().isVisible(ostart))
+ if (!scrollToNearest && !al.getHiddenColumns().isVisible(ostart))
{
// don't scroll - position isn't visible
return false;
int vextent = 0;
- public void setScrollValues(int x, int y)
+ public void setScrollValues(int xpos, int ypos)
{
+ int x = xpos;
+ int y = ypos;
+
if (av.getWrapAlignment())
{
setScrollingForWrappedPanel(x);
}
else
{
-
int width = av.getAlignment().getWidth();
int height = av.getAlignment().getHeight();
if (av.hasHiddenColumns())
{
- width = av.getColumnSelection().findColumnPosition(width);
+ width = av.getAlignment().getHiddenColumns()
+ .findColumnPosition(width);
}
if (x < 0)
{
}
}
+ /**
+ * Respond to adjustment event when horizontal or vertical scrollbar is
+ * changed
+ *
+ * @param evt
+ * adjustment event encoding whether apvscroll, hscroll or vscroll
+ * changed
+ */
@Override
public void adjustmentValueChanged(AdjustmentEvent evt)
{
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
- if ((offy * rowSize == 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)
+ if (newY > -1)
{
- vpRanges.setViewportStartAndWidth(offy * rowSize, 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(Math.max(0, 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.getColumnSelection().findColumnPosition(maxwidth) - 1;
- }
+ int scrollPosition = vpRanges.getWrappedScrollPosition(topLeftColumn);
+ int maxScroll = vpRanges.getWrappedMaxScroll(topLeftColumn);
- // 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);
- }
+ /*
+ * 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 + 1);
}
protected Panel sequenceHolderPanel = new Panel();
this.scrollComplementaryPanel = b;
}
+ /**
+ * Get whether to scroll complement panel
+ *
+ * @return true if cDNA/protein complement panels should be scrolled
+ */
protected boolean isSetToScrollComplementPanel()
{
return this.scrollComplementaryPanel;