protected void invalidate() {
// Retrieve current bounds and set local vars
Rectangle2D tmp = graph.getCellBounds(vertex.getCell());
if (tmp != null) {
tmp = (Rectangle2D) tmp.clone();
graph.toScreen(tmp);
int handlesize = graph.getHandleSize();
int s2 = 2 * handlesize;
double left = tmp.getX() - handlesize;
double top = tmp.getY() - handlesize;
double w2 = tmp.getX() + (tmp.getWidth() / 2) - handlesize;
double h2 = tmp.getY() + (tmp.getHeight() / 2) - handlesize;
double right = tmp.getX() + tmp.getWidth() - handlesize;
double bottom = tmp.getY() + tmp.getHeight() - handlesize;
// Update control point positions
r[0].setFrame(left, top, s2, s2);
r[1].setFrame(w2, top, s2, s2);
r[2].setFrame(right, top, s2, s2);
r[3].setFrame(left, h2, s2, s2);
r[4].setFrame(right, h2, s2, s2);
r[5].setFrame(left, bottom, s2, s2);
r[6].setFrame(w2, bottom, s2, s2);
r[7].setFrame(right, bottom, s2, s2);
}
}
public SizeHandle(VertexView vertexview, GraphContext ctx) {
graph = ctx.getGraph();
vertex = vertexview;
editing = graph.getEditingCell() == vertex.getCell();
int sizeableAxis = GraphConstants.getSizeableAxis(vertex.getAllAttributes());
if (sizeableAxis == GraphConstants.X_AXIS) cursors = xCursors;
else if (sizeableAxis == GraphConstants.Y_AXIS) cursors = yCursors;
else cursors = defaultCursors;
// PortView Preview
portViews = ctx.createTemporaryPortViews();
initialBounds = (Rectangle2D) vertex.getBounds().clone();
context = ctx;
for (int i = 0; i < r.length; i++) r[i] = new Rectangle2D.Double();
invalidate();
}
/** Process mouse pressed event. */
public void mousePressed(MouseEvent event) {
if (!graph.isSizeable()) return;
for (int i = 0; i < r.length; i++) {
if (r[i].contains(event.getPoint()) && cursors[i] != 0) {
Set set = new HashSet();
set.add(vertex.getCell());
contextViews = context.createTemporaryContextViews(set);
Object[] all = AbstractCellView.getDescendantViews(new CellView[] {vertex});
if (all.length >= org.jgraph.plaf.basic.BasicGraphUI.MAXHANDLES)
cachedBounds = (Rectangle2D) initialBounds.clone();
event.consume();
index = i;
return;
}
}
}