/** Automatically layout this RenderableComplex. */
public void layout() {
if (hideComponents) {
return; // Don't do layout for hiding components
}
List list = getComponents();
if (list == null || list.size() == 0) return;
int size = list.size();
int c = (int) Math.ceil(Math.sqrt(size));
Node rs[][] = new Node[c][c];
int index = 0;
// Distribute
for (int i = 0; i < c && index < size; i++) { // Row
for (int j = 0; j < c && index < size; j++) { // Col
rs[i][j] = (Node) list.get(index);
index++;
}
}
// Assign positions
// Original position
int x = position.x;
int y = position.y;
Dimension layerSize = new Dimension();
boolean isDone = false;
Node r = null;
Rectangle bounds = null;
int dx = 0;
int x0 = 0;
int y0 = 0;
for (int i = 0; i < c && !isDone; i++) { // Row
// Get the center for each layer
layerSize.width = 0;
layerSize.height = 0;
for (int j = 0; j < c; j++) { // Col
if (rs[i][j] == null) {
isDone = true;
break;
}
r = rs[i][j];
if (r.getStoiBounds() != null) {
layerSize.width += r.getStoiBounds().width;
}
if (r.getBounds() != null) {
layerSize.width += r.getBounds().width;
if (r.getBounds().height > layerSize.height) layerSize.height = r.getBounds().height;
} else {
layerSize.width += Node.getNodeWidth();
layerSize.height += 20; // arbitrarily
}
}
if (layerSize.width == 0) // nothing is layered.
break;
// Assign positions to this layer.
x = -layerSize.width / 2 + position.x;
y += layerSize.height / 2;
for (int j = 0; j < c; j++) {
if (rs[i][j] == null) break;
r = rs[i][j];
// All are nodes
dx = 0;
if (r.getStoiBounds() != null) dx = r.getStoiBounds().width;
if (r.getBounds() != null) dx += r.getBounds().width / 2;
else dx += Node.getNodeWidth() / 2;
x += dx;
x0 = r.position.x;
y0 = r.position.y;
// Need to call move to change positions of components in subcomplexes.
r.move(x - x0, y - y0);
dx += 1; // A little cushion
x += dx; // Move to the right end
}
y += layerSize.height / 2 + 2; // Make subunits look together
}
// Want to keep at the original position
x0 = position.x;
y0 = position.y;
setBoundsFromComponents();
dx = x0 - position.x;
int dy = y0 - position.y;
move(dx, dy);
// Should not call the following method since it will invalidate the
// layout results.
invalidateTextBounds();
}
