Examples with HasDragBounds org.kie.workbench.common.stunner.core.client.shape.view.HasDragBounds used on opensource projects

Example 1 with HasDragBounds

use of org.kie.workbench.common.stunner.core.client.shape.view.HasDragBounds in project kie-wb-common by kiegroup.

the class LocationControlImpl method register.

@Override
@SuppressWarnings("unchecked")
public void register(final Element element) {
    if (null != element.asNode() && checkNotRegistered(element)) {
        final Canvas<?> canvas = canvasHandler.getCanvas();
        final Shape<?> shape = canvas.getShape(element.getUUID());
        // Drag & constraints.
        shape.getShapeView().setDragEnabled(true);
        if (shape.getShapeView() instanceof HasDragBounds) {
            ensureDragConstraints((HasDragBounds<?>) shape.getShapeView());
        }
        if (shape.getShapeView() instanceof HasEventHandlers) {
            final HasEventHandlers hasEventHandlers = (HasEventHandlers) shape.getShapeView();
            // Change mouse cursor, if shape supports it.
            if (supportsMouseEnter(hasEventHandlers) && supportsMouseExit(hasEventHandlers)) {
                final MouseEnterHandler overHandler = new MouseEnterHandler() {

                    @Override
                    public void handle(MouseEnterEvent event) {
                        canvasHandler.getAbstractCanvas().getView().setCursor(AbstractCanvas.Cursors.MOVE);
                    }
                };
                hasEventHandlers.addHandler(ViewEventType.MOUSE_ENTER, overHandler);
                registerHandler(shape.getUUID(), overHandler);
                final MouseExitHandler outHandler = new MouseExitHandler() {

                    @Override
                    public void handle(MouseExitEvent event) {
                        canvasHandler.getAbstractCanvas().getView().setCursor(AbstractCanvas.Cursors.AUTO);
                    }
                };
                hasEventHandlers.addHandler(ViewEventType.MOUSE_EXIT, outHandler);
                registerHandler(shape.getUUID(), outHandler);
            }
        }
    }
}