Method buildSelectionHelpers

src/ch/hsr/ogv/view/Arrow.java:181–211

()

	}

	protected void buildSelectionHelpers() {
		double lineSelectionGap = 100;
		double endGap = this.arrowEnd.getAdditionalGap();
		double startGap = this.arrowStart.getAdditionalGap();
		PhongMaterial material = new PhongMaterial();
		material.setDiffuseColor(Color.DODGERBLUE);
		Box lineSelectionHelper = new Box(SELECTION_HELPER_WIDTH, SELECTION_HELPER_WIDTH, this.line.getDepth() - lineSelectionGap);
		lineSelectionHelper.depthProperty().bind(this.line.depthProperty().subtract(lineSelectionGap).add((endGap + startGap) / 2));
		lineSelectionHelper.translateXProperty().bind(this.line.translateXProperty());
		lineSelectionHelper.translateYProperty().bind(this.line.translateYProperty());
		lineSelectionHelper.translateZProperty().bind(this.line.translateZProperty().subtract((-endGap + startGap) / 4));
		lineSelectionHelper.rotateProperty().bind(this.line.rotateProperty());
		lineSelectionHelper.setOpacity(0.0); // dont want to see it, but still receive mouse events
		this.lineSelectionHelpers.add(lineSelectionHelper);

		this.startSelectionHelper = new Box(SELECTION_HELPER_WIDTH, SELECTION_HELPER_WIDTH / 2, lineSelectionGap / 2);
		this.startSelectionHelper.setMaterial(material); // for debugging
		this.startSelectionHelper.translateXProperty().bind(this.line.translateXProperty());
		this.startSelectionHelper.translateYProperty().bind(this.line.translateYProperty());
		this.startSelectionHelper.translateZProperty().bind(this.line.translateZProperty().subtract(this.line.depthProperty().divide(2)).subtract(startGap / 2).add(lineSelectionGap / 4));
		this.startSelectionHelper.rotateProperty().bind(this.line.rotateProperty());
		this.startSelectionHelper.setOpacity(0.0); // dont want to see it, but still receive mouse events

		this.endSelectionHelper = new Box(SELECTION_HELPER_WIDTH, SELECTION_HELPER_WIDTH / 2, lineSelectionGap / 2);
		this.endSelectionHelper.setMaterial(material); // for debugging
		this.endSelectionHelper.translateXProperty().bind(this.line.translateXProperty());
		this.endSelectionHelper.translateYProperty().bind(this.line.translateYProperty());
		this.endSelectionHelper.translateZProperty().bind(this.line.translateZProperty().add(this.line.depthProperty().divide(2)).add(endGap / 2).subtract(lineSelectionGap / 4));
		this.endSelectionHelper.rotateProperty().bind(this.line.rotateProperty());
		this.endSelectionHelper.setOpacity(0.0); // dont want to see it, but still receive mouse events
	}

	protected void addElementsToGroup() {
		getChildren().clear();