Method checkPairs

src/main/java/fieldbox/boxes/plugins/BoxPair.java:130–190

()

	}

	private void checkPairs() {

		Set<Box> mainBoxes = new LinkedHashSet<>();
		Set<Box> frameBoxes = new LinkedHashSet<>();

		this.breadthFirst(this.both()).filter(x -> x.properties.has(isPaired) && x.properties.isTrue(isPaired, false)).forEach(x -> {
			if (x.properties.get(Box.name).length()>0)
			{
				mainBoxes.add(x);
			}
			else
			{
				frameBoxes.add(x);
			}
		});


		for(Box b : mainBoxes)
		{
			for(Box bb : b.children())
			{
				if (bb.properties.get(Box.name).trim().length()==0)
				{
					b.properties.put(f, bb);
					bb.properties.put(m, b);
					b.properties.put(isPaired, true);
					bb.properties.put(isPaired, true);
				}
			}
		}

		for(Box bb : frameBoxes)
		{
			bb.properties.put(name, "");
			// install decoration if there isn't any
			bb.properties.put(isPaired, true);
		}

		// callbacks for frame changed!
		for(Box bb : frameBoxes)
		{
			IdempotencyMap<Supplier<Collection<? extends Supplier<FLine>>>> q = bb.properties.getOrConstruct(FLineDrawing.bulkLines);
			Supplier<Collection<? extends Supplier<FLine>>> fr = q.get("__framemarking__");
			if (fr==null)
			{
				installFrameDecor(bb);
			}
		}
		for(Box bb : mainBoxes)
		{
			IdempotencyMap<Supplier<Collection<? extends Supplier<FLine>>>> q = bb.properties.getOrConstruct(FLineDrawing.bulkLines);
			Supplier<Collection<? extends Supplier<FLine>>> fr = q.get("__framemarking__");
			if (fr==null)
			{
				installMainDecor(bb);
			}
		}