return annotations.adjustPanelHeight();
}
- private void drawPanel(Graphics g1, int startRes, int endRes,
- int startSeq, int endSeq, int offset)
+ private void drawPanel(Graphics g1, final int startRes, final int endRes,
+ final int startSeq, final int endSeq, final int offset)
{
if (!av.hasHiddenColumns())
}
else
{
-
int screenY = 0;
+ final int screenYMax = endRes - startRes;
int blockStart = startRes;
int blockEnd = endRes;
if (av.hasHiddenColumns())
{
HiddenColumns hidden = av.getAlignment().getHiddenColumns();
- for (int[] region : hidden.getHiddenColumnsCopyAsList())
+ for (int[] region : hidden.getHiddenColumnsCopy())
{
int hideStart = region[0];
int hideEnd = region[1];
continue;
}
- blockEnd = hideStart - 1;
+ /*
+ * draw up to just before the next hidden region, or the end of
+ * the visible region, whichever comes first
+ */
+ blockEnd = Math.min(hideStart - 1, blockStart + screenYMax
+ - screenY);
g1.translate(screenY * avcharWidth, 0);
draw(g1, blockStart, blockEnd, startSeq, endSeq, offset);
- if (av.getShowHiddenMarkers())
+ /*
+ * draw the downline of the hidden column marker (ScalePanel draws the
+ * triangle on top) if we reached it
+ */
+ if (av.getShowHiddenMarkers() && blockEnd == hideStart - 1)
{
g1.setColor(Color.blue);
g1.drawLine((blockEnd - blockStart + 1) * avcharWidth - 1,
screenY += blockEnd - blockStart + 1;
blockStart = hideEnd + 1;
- if (screenY > (endRes - startRes))
+ if (screenY > screenYMax)
{
// already rendered last block
return;
}
}
}
- if (screenY <= (endRes - startRes))
+ if (screenY <= screenYMax)
{
// remaining visible region to render
blockEnd = blockStart + (endRes - startRes) - screenY;
@Override
public void propertyChange(PropertyChangeEvent evt)
{
+ String eventName = evt.getPropertyName();
+
if (!av.getWrapAlignment())
{
- if (evt.getPropertyName().equals("startres")
- || evt.getPropertyName().equals("endres"))
+ int scrollX = 0;
+ if (eventName.equals(ViewportRanges.STARTRES))
{
// Make sure we're not trying to draw a panel
// larger than the visible window
ViewportRanges vpRanges = av.getRanges();
- int scrollX = (int) evt.getNewValue() - (int) evt.getOldValue();
- if (scrollX > vpRanges.getEndRes() - vpRanges.getStartRes())
+ scrollX = (int) evt.getNewValue() - (int) evt.getOldValue();
+ int range = vpRanges.getEndRes() - vpRanges.getStartRes();
+ if (scrollX > range)
{
- scrollX = vpRanges.getEndRes() - vpRanges.getStartRes();
+ scrollX = range;
}
- else if (scrollX < vpRanges.getStartRes() - vpRanges.getEndRes())
+ else if (scrollX < -range)
{
- scrollX = vpRanges.getStartRes() - vpRanges.getEndRes();
+ scrollX = -range;
}
+ }
+
+ // Both scrolling and resizing change viewport ranges: scrolling changes
+ // both start and end points, but resize only changes end values.
+ // Here we only want to fastpaint on a scroll, with resize using a normal
+ // paint, so scroll events are identified as changes to the horizontal or
+ // vertical start value.
+ if (eventName.equals(ViewportRanges.STARTRES))
+ {
+ // scroll - startres and endres both change
fastPaint(scrollX, 0);
}
- else if (evt.getPropertyName().equals("startseq")
- || evt.getPropertyName().equals("endseq"))
+ else if (eventName.equals(ViewportRanges.STARTSEQ))
{
+ // scroll
fastPaint(0, (int) evt.getNewValue() - (int) evt.getOldValue());
}
}
-
}
}