/**
* Gets the mark for the specified panel.
*
* @param trackerPanel the tracker panel
* @return the mark
*/
protected Mark getMark(TrackerPanel trackerPanel) {
Mark mark = marks.get(trackerPanel);
TPoint selection = null;
if (mark == null) {
selection = trackerPanel.getSelectedPoint();
Point p = null;
valid = true; // assume true
for (int n = 0; n < points.length; n++) {
if (!valid) continue;
// determine if point is valid (ie not NaN)
valid = valid && !Double.isNaN(points[n].getX()) && !Double.isNaN(points[n].getY());
screenPoints[n] = points[n].getScreenPosition(trackerPanel);
if (valid && selection == points[n]) p = screenPoints[n];
}
mark = footprint.getMark(screenPoints);
if (p != null) { // point is selected, so draw selection shape
transform.setToTranslation(p.x, p.y);
int scale = FontSizer.getIntegerFactor();
if (scale > 1) {
transform.scale(scale, scale);
}
final Color color = footprint.getColor();
final Mark stepMark = mark;
final Shape selectedShape = transform.createTransformedShape(selectionShape);
mark =
new Mark() {
public void draw(Graphics2D g, boolean highlighted) {
stepMark.draw(g, false);
Paint gpaint = g.getPaint();
g.setPaint(color);
g.fill(selectedShape);
g.setPaint(gpaint);
}
public Rectangle getBounds(boolean highlighted) {
Rectangle bounds = selectedShape.getBounds();
bounds.add(stepMark.getBounds(false));
return bounds;
}
};
}
final Mark theMark = mark;
mark =
new Mark() {
public void draw(Graphics2D g, boolean highlighted) {
if (!valid) return;
theMark.draw(g, false);
}
public Rectangle getBounds(boolean highlighted) {
return theMark.getBounds(highlighted);
}
};
marks.put(trackerPanel, mark);
}
return mark;
}
/* Draws the ball at its current position */
public void draw(Graphics2D g) {
double imageWidth = img.getWidth(parent);
double imageHeight = img.getHeight(parent);
// translate image such that its centred on its actual position
objectTransform.setToTranslation(
(double) pos_x - imageWidth / 2, (double) pos_y - imageHeight / 2);
// // this rotates the planet!
// objectTransform.rotate(Math.PI/800,50.0,51.0);
g.setTransform(new AffineTransform());
g.drawImage(img, objectTransform, parent);
}