/** @author Santhosh Kumar T */
public class RuleScene extends GraphScene<Node, Edge> {
private final WidgetAction moveAction = ActionFactory.createMoveAction();
private final WidgetAction nodePopupAction =
ActionFactory.createPopupMenuAction(new NodePopupProvider(this));
private final WidgetAction edgePopupAction =
ActionFactory.createPopupMenuAction(new EdgePopupProvider(this));
private final WidgetAction hoverAction;
private final WidgetAction editAction;
private LayerWidget interactionLayer = new LayerWidget(this);
private WidgetAction connectAction =
ActionFactory.createConnectAction(interactionLayer, new NodeConnectProvider());
private TwoStateHoverProvider hoverProvider;
public File file;
public RuleScene(TwoStateHoverProvider hoverProvider, EditProvider edgeEditProvider) {
addChild(nodes);
addChild(connections);
addChild(interactionLayer);
this.hoverProvider = hoverProvider;
hoverAction = ActionFactory.createHoverAction(new Highlighter(hoverProvider));
editAction = ActionFactory.createEditAction(edgeEditProvider);
getActions().addAction(hoverAction);
getActions().addAction(ActionFactory.createPopupMenuAction(new ScenePopupProvider(this)));
getActions().addAction(ActionFactory.createWheelPanAction());
}
/*-------------------------------------------------[ Rule ]---------------------------------------------------*/
private Syntax syntax;
private Rule rule;
public final Observable ruleObservable =
new Observable() {
@Override
public void notifyObservers(Object arg) {
setChanged();
super.notifyObservers(arg);
}
};
public void setRule(Syntax syntax, Rule rule) {
this.syntax = syntax;
if (this.rule != null) {
for (Node node : getNodes().toArray(new Node[getNodes().size()])) removeNodeWithEdges(node);
}
this.rule = rule;
if (this.rule != null) populate(rule.node);
layout();
hoverProvider.unsetHovering(this);
ruleObservable.notifyObservers(rule);
}
public Syntax getSyntax() {
return syntax;
}
public Rule getRule() {
return rule;
}
private void populate(Node node) {
if (findWidget(node) == null) {
addNode(node);
for (Edge edge : node.outgoing) {
populate(edge.target);
addEdge(edge);
setEdgeSource(edge, edge.source);
setEdgeTarget(edge, edge.target);
}
}
}
/*-------------------------------------------------[ Layout ]---------------------------------------------------*/
private final SceneLayout layout =
LayoutFactory.createSceneGraphLayout(this, new RuleLayout(false));
public void layout() {
validate();
layout.invokeLayoutImmediately();
}
public void layout(Object model) {
findWidget(model).revalidate();
layout();
}
public void refresh() {
Syntax syntax = this.syntax;
Rule rule = this.rule;
setRule(null, null);
setRule(syntax, rule);
}
/*-------------------------------------------------[ Nodes ]---------------------------------------------------*/
private final LayerWidget nodes = new LayerWidget(this);
@Override
protected Widget attachNodeWidget(Node node) {
NodeWidget widget = new NodeWidget(this);
widget.setFont(Util.FIXED_WIDTH_FONT);
widget.highLight(false);
nodes.addChild(widget);
// widget.getActions().addAction(moveAction);
widget.getActions().addAction(hoverAction);
widget.getActions().addAction(nodePopupAction);
widget.getActions().addAction(connectAction);
return widget;
}
/*-------------------------------------------------[ Edges ]---------------------------------------------------*/
private final LayerWidget connections = new LayerWidget(this);
private final Router router = new RuleRouter();
private LabelWidget createEdgeLabel(Edge edge) {
LabelWidget label = new LabelWidget(this, edge.toString());
label.setFont(Util.FIXED_WIDTH_FONT);
label.setBorder(BorderFactory.createEmptyBorder(0, 0, 2, 0));
label.getActions().addAction(hoverAction);
label.getActions().addAction(editAction);
label.getActions().addAction(moveAction);
label.getActions().addAction(edgePopupAction);
return label;
}
@Override
protected Widget attachEdgeWidget(Edge edge) {
EdgeWidget connection = new EdgeWidget(this);
connection.setStroke(Util.STROKE_2);
connection.setTargetAnchorShape(AnchorShape.TRIANGLE_FILLED);
LabelWidget label = createEdgeLabel(edge);
connection.setConstraint(label, LayoutFactory.ConnectionWidgetLayoutAlignment.TOP_CENTER, 0.5f);
connection.addChild(label);
connections.addChild(connection);
connection.setRouter(router);
connection.highLight(false);
connection.getActions().addAction(hoverAction);
connection.getActions().addAction(editAction);
connection.getActions().addAction(edgePopupAction);
return connection;
}
@Override
protected void attachEdgeSourceAnchor(Edge edge, Node oldSource, Node newSource) {
Widget w = newSource != null ? findWidget(newSource) : null;
((ConnectionWidget) findWidget(edge)).setSourceAnchor(AnchorFactory.createRectangularAnchor(w));
}
@Override
protected void attachEdgeTargetAnchor(Edge edge, Node oldTarget, Node newTarget) {
Widget w = newTarget != null ? findWidget(newTarget) : null;
((ConnectionWidget) findWidget(edge)).setTargetAnchor(AnchorFactory.createRectangularAnchor(w));
}
/*-------------------------------------------------[ Executing ]---------------------------------------------------*/
private Widget executionWidget;
private void executing(Widget widget) {
if (executionWidget != widget) {
if (executionWidget != null) {
((NBLRWidget) executionWidget).executing(false);
executionWidget = null;
}
if (widget != null) {
executionWidget = widget;
((NBLRWidget) executionWidget).executing(true);
final Rectangle bounds = Util.bounds(widget);
SwingUtilities.invokeLater(
new Runnable() {
@Override
public void run() {
getView().scrollRectToVisible(bounds);
}
});
}
validate();
}
}
public void executing(Node node) {
executing(findWidget(node));
}
public void executing(Edge edge) {
executing(findWidget(edge));
}
/*-------------------------------------------------[ Antialiasing ]---------------------------------------------------*/
public void paintChildren() {
Graphics2D g = getGraphics();
Object anti = g.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
Object textAnti = g.getRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING);
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g.setRenderingHint(
RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
super.paintChildren();
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, anti);
g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, textAnti);
}
}
