Method drawNow

src/main/java/fieldbox/boxes/plugins/Viewport.java:347–420

(DrawingInterface context)

		if (c != null) {
			c.advanceState(x -> {
				Rect f = this.properties.get(Box.frame);
				x.aspect = f.w / f.h;
				return x;
			});
		}

		try (Util.ExceptionlessAutoClosable s = GraphicsContext.getContext().stateTracker.save()) {

			Rect f = this.properties.get(Box.frame);

			boolean clips = this.properties.isTrue(Viewport.clips, true);
			Optional<Drawing> od = this.first(Drawing.drawing);

			// TODO, blast radius of change to DrawingInterface? Viewports cannot clip properly on non-window renderers
			Vec2 tl = od.get().drawingSystemToWindowSystem(new Vec2(f.x, f.y));
			Vec2 bl = od.get().drawingSystemToWindowSystem(new Vec2(f.x + f.w, f.y + f.h));

			FieldBoxWindow window = this.first(Boxes.window).get();
			int h = window.getHeight();
			int w = window.getWidth();
			float rs = window.getRetinaScaleFactor();
			int[] v = new int[]{(int) ((int) tl.x * rs) + 5 + 10, (int) ((int) (h - bl.y) * rs) + 3 + 13, (int) ((int) (bl.x - tl.x + 2) * rs) - 9 - 20, (int) ((int) (bl.y - tl.y + 2) * rs - 12 - 18)};

			if (clips) {
				GraphicsContext.getContext().stateTracker.scissor.set(v);
				GraphicsContext.getContext().stateTracker.viewport.set(v);
			}

			Map<String, Supplier<FLine>> q = breadthFirst(downwards()).filter(x -> x.properties.has(lines3))
				.flatMap(x -> x.properties.get(lines3)
					.entrySet()
					.stream())
				.collect(Collectors.toMap(x -> x.getKey(), x -> x.getValue(), (old, n) -> old));
			Map<String, Supplier<Collection<Supplier<FLine>>>> q2 = breadthFirst(downwards()).filter(x -> x.properties.has(bulkLines3))
				.flatMap(x -> x.properties.get(bulkLines3)
					.entrySet()
					.stream())
				.collect(Collectors.toMap(x -> x.getKey(), x -> x.getValue(), (old, n) -> old));

			standard.lines_builder.open();
			standard.triangles_builder.open();
			standard.points_builder.open();

			try {
				q.values()
					.stream()
					.map(x -> x.get())
					.filter(x -> x != null)
					.forEach(x -> StandardFLineDrawing.dispatchLine(x, standard.triangles_builder, standard.lines_builder, standard.points_builder, Optional.empty(), ""));
				q2.values()
					.stream()
					.map(x -> x.get())
					.filter(x -> x != null)
					.flatMap(x -> x.stream())
					.filter(x -> x != null)
					.map(x -> x.get())
					.filter(x -> x != null)
					.forEach(x -> StandardFLineDrawing.dispatchLine(x, standard.triangles_builder, standard.lines_builder, standard.points_builder, Optional.empty(), ""));