import java.awt.Image;
import java.awt.Panel;
import java.beans.PropertyChangeEvent;
+import java.util.List;
public class SeqCanvas extends Panel implements ViewportListenerI
{
HiddenColumns hidden = av.getAlignment().getHiddenColumns();
g.setColor(Color.blue);
int res;
- for (int i = 0; i < hidden.getHiddenRegions()
- .size(); i++)
+ List<Integer> positions = hidden.findHiddenRegionPositions();
+ for (int pos : positions)
{
- res = hidden.findHiddenRegionPosition(i)
- - startRes;
+ res = pos - startRes;
if (res < 0 || res > endx - startRes)
{
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)
+ 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;