public void buildVerticalPath() {
Vector2D start_ = link.getStartWithOffset();
Vector2D end_ = link.getEndWithOffset();
if (link.start.x > link.end.x + link.outOffsetLength
&& link.startDirection == Anchor2D.DIRECTION_LEFT) {
path.add(link.start);
path.add(link.end.x, link.start.y);
path.add(link.end);
link.label.setPosition(
link.end.x + (link.start.x - link.end.x) * 0.5, link.start.y - LABEL_OFFSET);
} else if (link.start.x < link.end.x - link.outOffsetLength
&& link.startDirection == Anchor2D.DIRECTION_RIGHT) {
path.add(link.start);
path.add(link.end.x, link.start.y);
path.add(link.end);
link.label.setPosition(
link.end.x + (link.start.x - link.end.x) * 0.5, link.start.y - LABEL_OFFSET);
} else if (link.start.y - GElementRect.DEFAULT_HEIGHT * 0.5 < end_.y + 10) {
Vector2D p1 = new Vector2D(link.end.x, link.start.y + GElementRect.DEFAULT_HEIGHT * 0.5 + 10);
Vector2D p2 = new Vector2D(start_.x, p1.y);
path.add(link.start);
path.add(start_);
path.add(p2);
path.add(p1);
path.add(link.end);
link.label.setPosition(p1.add(p2.sub(p1).stretch(0.5)).shift(0, LABEL_OFFSET));
} else {
Vector2D ab = start_.sub(link.end);
Vector2D p1 = new Vector2D(link.end.x, link.end.y + ab.y * 0.5);
Vector2D p2 = new Vector2D(p1.x + ab.x, p1.y);
Vector2D p3 = new Vector2D(p2.x, start_.y);
path.add(link.start);
path.add(start_);
path.add(p3);
path.add(p2);
path.add(p1);
path.add(link.end);
link.label.setPosition(p1.add(p2.sub(p1).stretch(0.5)).shift(0, -LABEL_OFFSET));
}
}
public void updateRightBottom() {
this.path = link.path;
if (link.getEndWithOffset().y <= link.start.y) buildVerticalPath();
else if (link.start.x + link.outOffsetLength < link.end.x - GElementRect.DEFAULT_WIDTH + 10)
buildHorizontalPath();
else buildHorizontalLeftPath(false);
}
public void buildHorizontalPath() {
Vector2D start_ = link.getStartWithOffset();
Vector2D end_ = link.getEndWithOffset();
Vector2D ab = link.start.sub(end_);
Vector2D p1 = new Vector2D(end_.x + ab.x * 0.5, end_.y);
Vector2D p2 = new Vector2D(p1.x, start_.y);
path.add(link.start);
path.add(start_);
path.add(p2);
path.add(p1);
path.add(end_);
path.add(link.end);
link.label.setPosition(p1.add(p2.sub(p1).stretch(0.5)).shift(LABEL_OFFSET, 0));
}
public void buildHorizontalLeftPath(boolean left) {
Vector2D start_ = link.getStartWithOffset();
Vector2D end_ = link.getEndWithOffset();
double farest_x;
double farest_y = Math.max(end_.y, start_.y + GElementRect.DEFAULT_HEIGHT * 0.5 + 10);
if (left) farest_x = Math.min(end_.x - GElementRect.DEFAULT_WIDTH * 0.5 - 10, start_.x);
else farest_x = Math.max(end_.x + GElementRect.DEFAULT_WIDTH * 0.5 + 10, start_.x);
Vector2D p1 = new Vector2D(end_.x, farest_y);
Vector2D p2 = new Vector2D(farest_x, p1.y);
Vector2D p3 = new Vector2D(p2.x, start_.y);
path.add(link.start);
path.add(p3);
path.add(p2);
path.add(p1);
path.add(end_);
path.add(link.end);
link.label.setPosition(p1.add(p2.sub(p1).stretch(0.5)).shift(0, LABEL_OFFSET));
}
public void updateLeftBottom() {
this.path = link.path;
if (link.getEndWithOffset().y <= link.start.y) buildVerticalPath();
else if (link.start.x > link.end.x + GElementRect.DEFAULT_WIDTH + 10) buildHorizontalPath();
else buildHorizontalLeftPath(true);
}
