/**
* Returns the {@link InfiniteCanvas} that is managed by this {@link FXViewer} .
*
* @return The {@link InfiniteCanvas} that is managed by this {@link FXViewer} .
*/
public InfiniteCanvas getCanvas() {
if (infiniteCanvas == null) {
IRootPart<Node, ? extends Node> rootPart = getRootPart();
if (rootPart != null) {
infiniteCanvas = new InfiniteCanvas();
infiniteCanvas.setStyle(DEFAULT_STYLE);
// register root visual
infiniteCanvas.getContentGroup().getChildren().addAll((Parent) rootPart.getVisual());
// ensure we can properly react to scene and focus owner changes
infiniteCanvas
.sceneProperty()
.addListener(
new ChangeListener<Scene>() {
@Override
public void changed(
ObservableValue<? extends Scene> observable, Scene oldValue, Scene newValue) {
onSceneChanged(oldValue, newValue);
}
});
if (infiniteCanvas.getScene() != null) {
onSceneChanged(null, infiniteCanvas.getScene());
}
}
}
return infiniteCanvas;
}
@Override
public void setRootPart(IRootPart<Node> editpart) {
super.setRootPart(editpart);
if (editpart != null) {
canvas.setScene(createScene((Parent) editpart.getVisual()));
} else {
canvas.setScene(null);
}
}