/**
* Draws a time sync line on the plot at the specified time. We take the approach of plotting the
* time sync line like another data series in preference to using Quinn-Curtis' line drawing
* function.
*
* @param time at which to draw the time sync line.
*/
void drawTimeSyncLineAtTime(GregorianCalendar time) {
assert time != null;
// Peg timesync line to the plot area by setting the time
// parameter to be on the plot max or plot min.
if (time.before(plot.getCurrentTimeAxisMin())) {
time = plot.getCurrentTimeAxisMin();
} else if (time.after(plot.getCurrentTimeAxisMax())) {
time = plot.getCurrentTimeAxisMax();
}
syncTime = time;
if (timeSyncLinePlot == null) {
AbstractAxis timeAxis = plot.getTimeAxis();
if (timeAxis instanceof XYAxis) { // Only decorate time-like axes; TODO: move to AbstractAxis?
timeSyncLinePlot = new XYMarkerLine((XYAxis) timeAxis, time.getTimeInMillis());
timeSyncLinePlot.setForeground(PlotConstants.TIME_SYNC_LINE_COLOR);
XYPlotContents contents = plot.getPlotView().getContents();
contents.add(timeSyncLinePlot);
contents.revalidate();
}
} else {
timeSyncLinePlot.setValue(time.getTimeInMillis());
}
}
/** Remove the time sync line from the plot. */
void removeTimeSyncLine() {
if (timeSyncLinePlot != null) {
plot.setUserOperationLockedState(false);
XYPlotContents contents = plot.getPlotView().getContents();
contents.remove(timeSyncLinePlot);
contents.repaint(); // TODO: Only repaint the relevant portion
// plot.refreshDisplay();
timeSyncLinePlot = null;
syncTime = null;
}
}