private double getTimeY(long t0) {
double y0 = t0 - history_graph.getStartTime();
y0 =
y0
/ (history_graph.getEndTime() - history_graph.getStartTime() + 1)
* (time_end - time_start)
+ time_start;
return y0;
}
/** ***************************************************************************** */
private BddtHistoryItem getItemAtPoint(int x, int y) {
if (object_width == 0) return null;
double t =
history_graph.getStartTime()
+ (y - time_start)
/ (time_end - time_start)
* (history_graph.getEndTime() - history_graph.getStartTime() + 1);
if (t < history_graph.getStartTime() || t > history_graph.getEndTime()) return null;
GraphObject gobj = getObjectAtPoint(x, y);
// correlate with blocks
if (gobj != null) {
GraphBlock gb0 = null;
double dtime = 0;
for (GraphBlock gb : gobj.getBlocks()) {
double dt = gb.getEndTime() - gb.getStartTime();
if (t >= gb.getStartTime() && t <= gb.getEndTime()) {
if (gb0 == null || dt < dtime) {
gb0 = gb;
dtime = dt;
}
}
}
if (gb0 != null) {
BddtHistoryItem bi0 = null;
dtime = 0;
for (BddtHistoryItem bhi : gb0.getItems()) {
double dt = t - bhi.getTime();
if (dt >= 0) {
if (bi0 == null || dt < dtime) {
bi0 = bhi;
dtime = dt;
}
}
}
if (bi0 != null) return bi0;
}
}
// correlate with links
double delta =
(history_graph.getEndTime() - history_graph.getStartTime()) / (time_end - time_start) * 3;
double dtime = 0;
GraphLink gl0 = null;
for (int i = 0; i < history_graph.getNumObjects(); ++i) {
GraphObject go = history_graph.getObject(i);
double x0 = graph_locations.get(go);
for (GraphLink gl : go.getLinks()) {
double x1 = graph_locations.get(gl.getToObject());
if (x > x0 && x < x1) {
double dt = Math.abs(t - gl.getTime());
if (gl0 == null || dt < dtime) {
gl0 = gl;
dtime = dt;
}
}
}
}
if (gl0 != null && dtime <= delta) {
return gl0.getItem();
}
return null;
}