protected void initializeEventHandlers() {
// Add a FNode Selection Handler
nodeSelectionHandler =
new PNodeSelectionHandler(
this, getCanvas().getLayer(), getNodeLayer(), getCanvas().getCamera());
nodeSelectionHandler.setEventFilter(new PInputEventFilter(InputEvent.BUTTON1_MASK));
// Add an FEdge Selection Handler
edgeSelectionHandler =
new PEdgeSelectionHandler(
this, getCanvas().getLayer(), getEdgeLayer(), getCanvas().getCamera());
edgeSelectionHandler.setEventFilter(new PInputEventFilter(InputEvent.BUTTON1_MASK));
// Only allow panning via Middle Mouse button
getCanvas().getPanEventHandler().setEventFilter(new PInputEventFilter(InputEvent.BUTTON2_MASK));
PZoomEventHandler zoomer = new MyZoomEventHandler();
zoomer.setMinScale(.15);
zoomer.setMaxScale(7);
getCanvas().setZoomEventHandler(zoomer);
edgeHandler = new PEdgeHandler(this);
getCanvas().addInputEventListener(edgeHandler);
// add the tool tip handler
toolTipHandler = new PToolTipHandler(getCanvas().getCamera());
getCanvas().getCamera().addInputEventListener(toolTipHandler);
// create the Squiggle handler
squiggleEventHandler = new SquiggleEventHandler(squiggleLayer, getCanvas(), this);
ContextMenuHelper ctxMenuHandler = new ContextMenuHelper(this);
ctxMenuHandler.setEventFilter(new PInputEventFilter(InputEvent.BUTTON3_MASK));
getCanvas().addInputEventListener(ctxMenuHandler);
}
@Override
public void mouseDragged(PInputEvent e) {
// some node is under the mouse
if (e.getPath().getNodeStackReference().size() > 1) return;
e.getComponent().setInteracting(true);
super.mouseDragged(e);
if (original != null) doZoom(original, e);
}