private void handlePaint(Graphics2D g) {
checkSizes();
Dimension csz = draw_area.getSize();
synchronized (this) {
if (update_needed) updateGraph();
}
synchronized (history_graph) {
int nobj = history_graph.getNumObjects();
double twid =
nobj * GRAPH_OBJECT_WIDTH
+ 2 * GRAPH_LEFT_RIGHT_MARGIN
+ (nobj - 1) * GRAPH_OBJECT_H_SPACE;
double sx = csz.width / twid;
left_right_margin = GRAPH_LEFT_RIGHT_MARGIN * sx;
object_width = GRAPH_OBJECT_WIDTH * sx;
object_hspacing = GRAPH_OBJECT_H_SPACE * sx;
active_width = GRAPH_ACTIVE_WIDTH * sx;
arrow_size = 3 / y_scale;
double tht = 2 * GRAPH_TOP_BOTTOM_MARGIN + GRAPH_OBJECT_V_SPACE + GRAPH_TIME_SPACE;
double sy = csz.height / tht;
top_bottom_margin = GRAPH_TOP_BOTTOM_MARGIN * sy;
object_height = GRAPH_OBJECT_HEIGHT * sy;
time_start = top_bottom_margin + object_height + GRAPH_OBJECT_V_SPACE * sy;
time_end = csz.height - top_bottom_margin;
graph_locations = new HashMap<GraphObject, Double>();
for (int i = 0; i < nobj; ++i) {
GraphObject go = history_graph.getObject(i);
drawObject(g, i, go);
}
for (int i = 0; i < nobj; ++i) {
GraphObject go = history_graph.getObject(i);
drawLinks(g, go);
}
}
}
private GraphObject getObjectAtPoint(int x, int y) {
if (object_width == 0) return null;
GraphObject gobj = null;
int idx = (int) ((x - left_right_margin) / (object_width + object_hspacing));
if (idx >= 0 && idx < history_graph.getNumObjects()) {
double xoff = x - (left_right_margin + idx * (object_width + object_hspacing));
xoff -= object_width / 2;
if (Math.abs(xoff) <= active_width) gobj = history_graph.getObject(idx);
}
return gobj;
}
/** ***************************************************************************** */
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;
}