Class MarkingMenus

src/main/java/fieldbox/boxes/MarkingMenus.java:35–619

Plugin: MarkingMenus adds support for building and showing radial menus for boxes and for the canvas itself to Field. Menus are built up from coalescing MenuSpecifications from the "menuSpecs" property (signature: Function , MenuSpecification>). That puts labels an

 * memory.
 */
public class MarkingMenus extends Box {

	static public Dict.Prop<MarkingMenus> markingMenus = new Dict.Prop<>("markingMenus");

	// sophisticated interface
	static public Dict.Prop<Function<Window.Event<Window.MouseState>, MenuSpecification>> menuSpecs = new Dict.Prop<>("menuSpecs"); // TODO: comment

	// easy interface
	static public Dict.Prop<IdempotencyMap<FunctionOfBox>> menu = new Dict.Prop<>("menu").toCanon()
		.autoConstructs(() -> new IdempotencyMap<>(FunctionOfBox.class)).doc("Adds a menu item to a box at a particular direction. For example `_.menu.show_something_n = function(_) { ... }` will place a menu item 'show something' at the 'N(orth)' position. Note this position can get 'bumped' by other items.");


	// easy interface
	static public Dict.Prop<IdempotencyMap<FunctionOfBox>> spaceMenu = new Dict.Prop<>("spaceMenu").toCanon()
		.autoConstructs(() -> new IdempotencyMap<>(FunctionOfBox.class)).doc("Adds a menu item to a box at a particular direction. For example `_.spaceMenu.show_something_n = function(_) { ... }` will place a menu item 'show something' at the 'N(orth)' position. Note this position can get 'bumped' by other items.");


	static public Dict.Prop<IdempotencyMap<FunctionOfBox>> nothingCallback = new Dict.Prop<>("nothingCallback").toCanon()
			.autoConstructs(() -> new IdempotencyMap<>(FunctionOfBox.class)).doc("Callback that's called should nothing be selected in a right-click menu. Allows you to bind a right-click to a box.");


	public MarkingMenus(Box root) {

		this.properties.put(markingMenus, this);
		this.properties.put(FLineDrawing.layer, "glass2");
		this.properties.put(Planes.plane, "__always__");

		this.properties.putToMap(Mouse.onMouseDown, "__markingmenus__", (event, button) -> {
			if (button != 1) return null;

			if (event.properties.isTrue(Window.consumed, false)) return null;

			Box startAt = Intersects.startAt(event.after, root);


			if (startAt!=null && !startAt.properties.isTrue(Mouse.isSelected, false))
			{
				FrameManipulation.setSelectionTo(root, Collections.singleton(startAt));
			}


			FieldBoxWindow window = find(Boxes.window, both()).findFirst().get();
			Drawing drawing = find(Drawing.drawing, both()).findFirst().get();

			Rect bounds= window.getBounds();
			Rect viewBounds = drawing.getCurrentViewBounds(this);
			double[] originalMouseX = {0};
			double[] originalMouseY = {0};

			GLFW.glfwGetCursorPos(window.getGLFWWindowReference(), originalMouseX, originalMouseY);
			GLFW.glfwSetCursorPos(window.getGLFWWindowReference(), bounds.w/2, bounds.h/2);

			event.after.mx = viewBounds.x+viewBounds.w/2;
			event.after.my = viewBounds.y+viewBounds.h/2;

			MenuSpecification m = startAt.find(menuSpecs, upwardsOrDownwards())
				.filter(x -> x != null)
				.map(x -> x.apply(event))