private void checkSizes() {
Dimension vsz = scroll_pane.getViewport().getViewSize();
Dimension csz = draw_area.getSize();
Dimension nsz = new Dimension((int) (vsz.width * x_scale), (int) (vsz.height * y_scale));
boolean chng = false;
if (nsz.width > csz.width) {
if (vsz.width >= csz.width) {
csz.width = vsz.width;
chng = true;
x_scale = 1;
}
} else if (nsz.width < csz.width) {
if (x_scale == 1) {
csz.width = vsz.width;
chng = true;
}
}
if (nsz.height > csz.height) {
if (vsz.height >= csz.height) {
csz.height = vsz.height;
chng = true;
y_scale = 1;
}
} else if (nsz.height < csz.height) {
if (y_scale == 1) {
csz.height = vsz.height;
chng = true;
}
}
if (chng) draw_area.setSize(csz);
}
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);
}
}
}