public void addSelection(Point p) {
ExprPoint ep = null;
int minDist = -1;
for (ExprPoint ex : points) {
int sd = ex.screenDist(p);
if (ep == null || sd < minDist) {
ep = ex;
minDist = sd;
}
}
if (ep != null) {
Set<Point> remove = new HashSet<Point>();
for (Point rp : selections.keySet()) {
if (selections.get(rp).equals(ep)) {
remove.add(rp);
}
}
selections.put(p, ep);
for (Point rp : remove) {
selections.remove(rp);
}
}
}
public void paintRegion(Graphics2D g, int x1, int y1, int w, int h) {
int h2 = h / 2;
int rad = 3;
int diam = rad * 2;
Color lg = Color.cyan;
Color dg = Color.orange;
lg = new Color(lg.getRed(), lg.getGreen(), lg.getBlue(), 75);
dg = new Color(dg.getRed(), dg.getGreen(), dg.getBlue(), 75);
/*
* Draw the Baseline
*/
g.setColor(Color.black);
g.drawLine(x1, y1 + h, x1 + w, y1 + h);
Stroke oldStroke = g.getStroke();
g.setStroke(new BasicStroke((float) 2.0));
/*
* Draw the datapoints
*/
for (ExprPoint ep : points) {
if (ep.strand == '+') {
g.setColor(lg);
} else {
g.setColor(dg);
}
g.drawOval(x1 + ep.x - rad, y1 + ep.y - rad, diam, diam);
}
g.setStroke(oldStroke);
/*
* Paint the hash marks...
*/
if (!displayOppositeChannel) {
g.setColor(Color.black);
boolean flipper = true;
for (int value = 100;
value <= scale.getMax();
value *= (flipper ? 5 : 2), flipper = !flipper) {
int yoff = getYOffset((double) value);
String line = String.format("%d", value);
int uy = y1 + h2 - yoff, ly = y1 + h2 + yoff;
g.drawLine(x1, uy, x1 + 10, uy);
g.drawString(line, x1 + 12, uy + 5);
g.drawLine(x1, ly, x1 + 10, ly);
g.drawString(line, x1 + 12, ly + 5);
}
}
/*
* Draw any selections.
*/
g.setColor(Color.black);
for (Point p : selections.keySet()) {
ExprPoint ep = selections.get(p);
g.drawLine(p.x, p.y, ep.x, ep.y);
g.drawString(ep.getLabel(), p.x, p.y);
}
/*
* Draw the label in the upper-right hand corner.
*/
g.setColor(Color.black);
Font oldFont = g.getFont();
Font newFont = new Font("Arial", Font.BOLD, 24);
g.setFont(newFont);
FontMetrics fm = g.getFontMetrics();
int lblHeight = fm.getAscent() + fm.getDescent();
int lblWidth = fm.charsWidth(label.toCharArray(), 0, label.length());
int padding = 5;
int lblx = x1 + w - lblWidth - padding;
int lbly = y1 + lblHeight + padding;
g.drawString(label, lblx, lbly);
g.setFont(oldFont);
}