public void nodeOrEdgeSelectionChanged() {
final String[] edges = new String[graph.getSelectedEdges().size()];
final String[] nodes = new String[graph.getSelectedShapes().size()];
int i = 0;
for (final VEdge vedge : graph.getSelectedEdges()) {
edges[i] = vedge.toString();
++i;
}
i = 0;
for (final VNode vnode : graph.getSelectedShapes()) {
nodes[i] = vnode.toString();
++i;
}
client.updateVariable(paintableId, "selectedEdges", edges, false);
client.updateVariable(paintableId, "selectedNodes", nodes, true);
}
public void updateFromUIDL(final UIDL uidl, final ApplicationConnection client) {
if (!started) {
started = true;
client.updateVariable(uidl.getId(), "AppStarted", true, true);
}
}
public void constructLinkTo(final VNode node2) {
VConsole.log("linked");
final String name =
linkNode.getName() + "_to_" + node2.getName() + "_" + new Random().nextInt(1000);
final VEdge edge = VEdge.createAnEdge(null, this, graph, name, linkNode, node2, style);
client.updateVariable(
paintableId, "edgeCreated", new String[] {linkNode.getName(), node2.getName(), name}, true);
graph.addEdge(edge);
}
@Override
public void onDoubleClick(final DoubleClickEvent event) {
VConsole.log("onDoubleClick");
final int x = event.getX();
final int y = event.getY();
final VNode node = VNode.createANode(x, y, this, graph, style);
graph.addNode(node);
client.updateVariable(paintableId, "createdANode", new Object[] {node.getName(), x, y}, true);
}
private void zoom(final double factor) {
if (factor < 1) {
zoomFactor--;
} else {
zoomFactor++;
}
for (final VNode n : graph.getPaintedShapes()) {
n.setX((float) ((n.getX() - centerX) * factor) + centerX);
n.setY((float) ((n.getY() - centerY) * factor) + centerY);
if (n.getView() instanceof Circle) {
if (factor > 1) {
((Circle) n.getView()).setRadius((((Circle) n.getView()).getRadius() + 1));
} else {
((Circle) n.getView()).setRadius((((Circle) n.getView()).getRadius() - 1));
}
}
graph.updateEdges(n, false);
}
client.updateVariable(paintableId, "zoomFactor", zoomFactor, true);
}
/** Override the method to communicate the new value to server. */
@Override
public void setColor(String newcolor) {
// Ignore if no change
if (newcolor.equals(currentcolor.getText())) {
return;
}
// Let the original implementation to do whatever it needs to do
super.setColor(newcolor);
// Updating the state to the server can not be done before
// the server connection is known, i.e., before updateFromUIDL()
// has been called.
if (uidlId == null || client == null) {
return;
}
// Communicate the user interaction parameters to server. This call will
// initiate an AJAX request to the server.
client.updateVariable(uidlId, "colorname", newcolor, true);
}
private void deleteEdge(final VEdge edge, final boolean immediate) {
client.updateVariable(paintableId, "removedEdge", edge.getName(), immediate);
graph.removeEdge(edge);
}
public void deleteNode(final VNode node, final boolean immediate) {
client.updateVariable(paintableId, "removedNode", node.getName(), immediate);
graph.removeNode(node);
}
private void updateValueToServer() {
client.updateVariable(id, "value", value.doubleValue(), immediate);
}
