public void adjustmentValueChanged(AdjustmentEvent e) {
if (updating) return;
updating = true;
double start, end;
if (orientation == VERTICAL) {
end = displayMax - (getValue() / ratio);
start = end - viewLength;
} else {
start = getValue() / ratio + displayMin;
end = start + viewLength;
}
if (end > start) {
ValueAxis va = getValueAxis();
if (va instanceof DateAxis) {
Timeline tl = ((DateAxis) va).getTimeline();
start = tl.toMillisecond((long) start);
end = tl.toMillisecond((long) end);
// System.out.println("********** converting start=" + new java.util.Date((long)start) + "
// end=" + new java.util.Date((long)end) + " **********");
}
getValueAxis().setRange(start, end);
}
updating = false;
}
public void axisUpdate() {
ValueAxis va = getValueAxis();
if (va.isAutoRange()) {
if (oldColor == null) oldColor = getBackground();
setBackground(oldColor.brighter());
} else if (oldColor != null) {
setBackground(oldColor);
oldColor = null;
}
if (updating) return;
updating = true;
displayMin = 0;
displayMax = 0;
viewLength = 0;
double viewMin = 0;
double viewMax = 0;
ratio = 1;
Range dataRange = getDataRange();
if (dataRange != null) {
displayMin = getDisplayMinimum();
displayMax = getDisplayMaximum();
viewMin = getViewMinimum();
viewMax = getViewMaximum();
// ValueAxis va = getValueAxis();
if (va instanceof DateAxis) {
Timeline tl = ((DateAxis) va).getTimeline();
displayMin = tl.toTimelineValue((long) displayMin);
displayMax = tl.toTimelineValue((long) displayMax);
viewMin = tl.toTimelineValue((long) viewMin);
viewMax = tl.toTimelineValue((long) viewMax);
}
viewLength = viewMax - viewMin;
ratio = STEPS / (displayMax - displayMin);
}
int newMin = 0;
int newMax = STEPS;
int newExtent = (int) (viewLength * ratio);
int newValue;
if (orientation == VERTICAL) newValue = (int) ((displayMax - viewMax) * ratio);
else newValue = (int) ((viewMin - displayMin) * ratio);
// System.out.println("ChartScrollBar.axisUpdate(): newValue: " + newValue + " newExtent: " +
// newExtent + " newMin: " + newMin + " newMax: " + newMax);
setValues(newValue, newExtent, newMin, newMax);
updating = false;
}