/**
* Paints the tracks
*
* @param g2d
*/
public void paintTracks(Graphics2D g2d) {
calculateFirstAndLastPaintedPoint();
// Create start, end and interval Rectangles
createRectangles();
g2d.setStroke(new BasicStroke(1));
int additionalInfo = -1;
Point mp = this.getMousePosition();
// Draw data
for (int i = first; i < last; i++) {
if (mp != null && (pointRectangles[i].contains(mp))) {
if (dataSource.isLocked()) g2d.setColor(Color.BLACK);
else g2d.setColor(Color.RED);
g2d.fill(pointRectangles[i]);
g2d.setColor(Color.BLACK);
g2d.draw(pointRectangles[i]);
additionalInfo = i;
} else {
if (dataSource.isLocked()) g2d.setColor(Color.BLACK);
else g2d.setColor(new Color(0, 0, 0, 180));
g2d.fill(pointRectangles[i]);
}
}
if (additionalInfo != -1) displayInformationAbout(additionalInfo, g2d);
}
private void calculateFirstAndLastPaintedPoint() {
first = 0;
// Get first and last displayed point
while (first < n_events && dataSource.getPoint(first) < this.mapPixelToTime(0)) {
first++;
}
last = first;
while (last < n_events && mapTimeToPixel(dataSource.getPoint(last)) <= this.getWidth()) {
last++;
}
}
public PointTrackVisualization(Data sd, PointDataVisualization sdv) {
super(sd);
dataSource = (PointData) sd;
model = dataSource.getModel();
// Add listener with reference to visualization main component
listener = new VisualizationMouseListener(sdv, this);
addMouseWheelListener(listener);
addMouseListener(listener);
addMouseMotionListener(listener);
// no mouse pointer needed
this.setCursor(null);
}
/** Creates all event-related rectangles that need to be drawn */
private void createRectangles() {
pointRectangles = new RoundRectangle2D.Float[n_events];
for (int i = 0; i < n_events; i++) {
if (i < first || i > last) pointRectangles[i] = null;
else
pointRectangles[i] =
new RoundRectangle2D.Float(
mapTimeToPixel(dataSource.getPoint(i)) - 5,
1,
10,
this.getHeight() - TIMELINE_HEIGHT - 2f,
3,
3);
}
}
/**
* Shows information about activity i
*
* @param i
* @param g2d
*/
private void displayInformationAbout(int i, Graphics2D g2d) {
coordinatesPopup = null;
// Show additional information about one event
String info;
float boxHeight = g2d.getFontMetrics().getHeight() + 2f;
int boxY =
(int) (pointRectangles[i].getY() + pointRectangles[i].getHeight() / 2 - boxHeight / 2);
// Start info
info = "#" + i + ":" + TimestampConverter.getVideoTimestamp(dataSource.getPoint(i));
Rectangle2D.Float infoBox = new Rectangle2D.Float(0, boxY, this.getWidth(), boxHeight);
g2d.setColor(timelineColorTrack);
g2d.fill(infoBox);
g2d.setColor(Color.WHITE);
g2d.draw(infoBox);
g2d.setColor(fontColorTrack);
g2d.drawString(
info,
(int) (pointRectangles[i].getX() - g2d.getFontMetrics().stringWidth(info) / 2),
(int) (infoBox.getY() + 13));
}
public void updateDataReferences() {
// Update data reference
n_events = dataSource.getNPoints();
}
