/**
* Checks whether a node attached to the connection's source or target connector will move when a
* joint is dragged.
*
* <p>This is evaluated based on whether the node and/or joint are selected.
*
* @param jointSkin a {@link GJointSkin} that is dragged
* @param source {@code true} to query source node, {@code false} to query target node
* @return {@code true} if the node will move when the given joint is dragged
*/
private boolean isNodeStationary(final GJointSkin jointSkin, final boolean source) {
final GConnector connector = source ? connection.getSource() : connection.getTarget();
final GConnectable parent = connector.getParent();
if (parent instanceof GNode) {
final GNodeSkin nodeSkin = skinLookup.lookupNode((GNode) parent);
return !nodeSkin.isSelected() || !jointSkin.isSelected();
}
return false;
}
/**
* Deletes all nodes in the current selection and all attached connections.
*
* @param model the {@link GModel} currently being edited
* @param consumer a consumer to allow custom commands to be appended to the delete command
*/
public void deleteSelection(
final GModel model, final BiConsumer<List<GNode>, CompoundCommand> consumer) {
final List<GNode> nodesToDelete = new ArrayList<>();
final List<GConnection> connectionsToDelete = new ArrayList<>();
for (final GNode node : model.getNodes()) {
if (skinLookup.lookupNode(node).isSelected()) {
nodesToDelete.add(node);
for (final GConnector connector : node.getConnectors()) {
for (final GConnection connection : connector.getConnections()) {
if (connection != null && !connectionsToDelete.contains(connection)) {
connectionsToDelete.add(connection);
}
}
}
}
}
for (final GConnection connection : model.getConnections()) {
if (skinLookup.lookupConnection(connection).isSelected()
&& !connectionsToDelete.contains(connection)) {
connectionsToDelete.add(connection);
}
}
if (!nodesToDelete.isEmpty() || !connectionsToDelete.isEmpty()) {
final CompoundCommand command =
modelEditingManager.remove(nodesToDelete, connectionsToDelete);
if (consumer != null) {
consumer.accept(nodesToDelete, command);
}
}
}