public Point2D.Double findStart(ConnectionFigure connection) {
Figure startFigure = connection.getStartConnector().getOwner();
Point2D.Double from;
if (connection.getPointCount() <= 2 || connection.getLiner() != null) {
if (connection.getEndConnector() == null) {
from = connection.getEndPoint();
} else {
Rectangle2D.Double r1 =
getConnectorTarget(connection.getEndConnector().getOwner()).getBounds();
from = new Point2D.Double(r1.x + r1.width / 2, r1.y + r1.height / 2);
}
} else {
from = connection.getPoint(1);
}
return chop(startFigure, from);
}
public void lineout(ConnectionFigure figure) {
BezierPath path = ((LineConnectionFigure) figure).getBezierPath();
Connector start = figure.getStartConnector();
Connector end = figure.getEndConnector();
if (start == null || end == null || path == null) {
return;
}
// Special treatment if the connection connects the same figure
if (figure.getStartFigure() == figure.getEndFigure()) {
// Ensure path has exactly 4 nodes
while (path.size() < 4) {
path.add(1, new BezierPath.Node(0, 0));
}
while (path.size() > 4) {
path.remove(1);
}
Point2D.Double sp = start.findStart(figure);
Point2D.Double ep = end.findEnd(figure);
Rectangle2D.Double sb = start.getBounds();
Rectangle2D.Double eb = end.getBounds();
int soutcode = sb.outcode(sp);
if (soutcode == 0) {
soutcode = Geom.outcode(sb, eb);
}
int eoutcode = eb.outcode(ep);
if (eoutcode == 0) {
eoutcode = Geom.outcode(sb, eb);
}
path.get(0).moveTo(sp);
path.get(path.size() - 1).moveTo(ep);
switch (soutcode) {
case Geom.OUT_TOP:
eoutcode = Geom.OUT_LEFT;
break;
case Geom.OUT_RIGHT:
eoutcode = Geom.OUT_TOP;
break;
case Geom.OUT_BOTTOM:
eoutcode = Geom.OUT_RIGHT;
break;
case Geom.OUT_LEFT:
eoutcode = Geom.OUT_BOTTOM;
break;
default:
eoutcode = Geom.OUT_TOP;
soutcode = Geom.OUT_RIGHT;
break;
}
// path.get(0).moveTo(sp.x + shoulderSize, sp.y);
path.get(0).mask = BezierPath.C2_MASK;
if ((soutcode & Geom.OUT_RIGHT) != 0) {
path.get(0).x[2] = sp.x + shoulderSize;
path.get(0).y[2] = sp.y;
} else if ((soutcode & Geom.OUT_LEFT) != 0) {
path.get(0).x[2] = sp.x - shoulderSize;
path.get(0).y[2] = sp.y;
} else if ((soutcode & Geom.OUT_BOTTOM) != 0) {
path.get(0).x[2] = sp.x;
path.get(0).y[2] = sp.y + shoulderSize;
} else {
path.get(0).x[2] = sp.x;
path.get(0).y[2] = sp.y - shoulderSize;
}
path.get(1).mask = BezierPath.C2_MASK;
path.get(1).moveTo(sp.x + shoulderSize, (sp.y + ep.y) / 2);
path.get(1).x[2] = sp.x + shoulderSize;
path.get(1).y[2] = ep.y - shoulderSize;
path.get(2).mask = BezierPath.C1_MASK;
path.get(2).moveTo((sp.x + ep.x) / 2, ep.y - shoulderSize);
path.get(2).x[1] = sp.x + shoulderSize;
path.get(2).y[1] = ep.y - shoulderSize;
path.get(3).mask = BezierPath.C1_MASK;
if ((eoutcode & Geom.OUT_RIGHT) != 0) {
path.get(3).x[1] = ep.x + shoulderSize;
path.get(3).y[1] = ep.y;
} else if ((eoutcode & Geom.OUT_LEFT) != 0) {
path.get(3).x[1] = ep.x - shoulderSize;
path.get(3).y[1] = ep.y;
} else if ((eoutcode & Geom.OUT_BOTTOM) != 0) {
path.get(3).x[1] = ep.x;
path.get(3).y[1] = ep.y + shoulderSize;
} else {
path.get(3).x[1] = ep.x;
path.get(3).y[1] = ep.y - shoulderSize;
}
} else {
Point2D.Double sp = start.findStart(figure);
Point2D.Double ep = end.findEnd(figure);
path.clear();
if (sp.x == ep.x || sp.y == ep.y) {
path.add(new BezierPath.Node(ep.x, ep.y));
} else {
Rectangle2D.Double sb = start.getBounds();
sb.x += 5d;
sb.y += 5d;
sb.width -= 10d;
sb.height -= 10d;
Rectangle2D.Double eb = end.getBounds();
eb.x += 5d;
eb.y += 5d;
eb.width -= 10d;
eb.height -= 10d;
int soutcode = sb.outcode(sp);
if (soutcode == 0) {
soutcode = Geom.outcode(sb, eb);
}
int eoutcode = eb.outcode(ep);
if (eoutcode == 0) {
eoutcode = Geom.outcode(eb, sb);
}
if ((soutcode & (Geom.OUT_TOP | Geom.OUT_BOTTOM)) != 0
&& (eoutcode & (Geom.OUT_TOP | Geom.OUT_BOTTOM)) != 0) {
path.add(
new BezierPath.Node(
BezierPath.C2_MASK, sp.x, sp.y, sp.x, sp.y, sp.x, (sp.y + ep.y) / 2));
path.add(
new BezierPath.Node(
BezierPath.C1_MASK, ep.x, ep.y, ep.x, (sp.y + ep.y) / 2, ep.x, ep.y));
} else if ((soutcode & (Geom.OUT_LEFT | Geom.OUT_RIGHT)) != 0
&& (eoutcode & (Geom.OUT_LEFT | Geom.OUT_RIGHT)) != 0) {
path.add(
new BezierPath.Node(
BezierPath.C2_MASK, sp.x, sp.y, sp.x, sp.y, (sp.x + ep.x) / 2, sp.y));
path.add(
new BezierPath.Node(
BezierPath.C1_MASK, ep.x, ep.y, (sp.x + ep.x) / 2, ep.y, ep.x, ep.y));
} else if (soutcode == Geom.OUT_BOTTOM || soutcode == Geom.OUT_TOP) {
path.add(new BezierPath.Node(BezierPath.C2_MASK, sp.x, sp.y, sp.x, sp.y, sp.x, ep.y));
path.add(new BezierPath.Node(ep.x, ep.y));
} else {
path.add(new BezierPath.Node(BezierPath.C2_MASK, sp.x, sp.y, sp.x, sp.y, ep.x, sp.y));
path.add(new BezierPath.Node(ep.x, ep.y));
}
}
}
path.invalidatePath();
}