From: Jukka Kurkela <jukka.kurkela@gmail.com>
Date: Tue, 21 Jan 2020 23:30:23 +0000 (+0200)
Subject: Filler fix (#6989)
X-Git-Tag: v3.0.0-alpha~107
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b76dd46d72fcab01f15d6f828efd1d57a0950e6e;p=thirdparty%2FChart.js.git

Filler fix (#6989)

* Filler fix
* Add an indicator of reference points
---

diff --git a/src/plugins/plugin.filler.js b/src/plugins/plugin.filler.js
index 2473a6fd2..03ea9dcaa 100644
--- a/src/plugins/plugin.filler.js
+++ b/src/plugins/plugin.filler.js
@@ -164,11 +164,11 @@ function pointsFromSegments(boundary, line) {
 		const first = linePoints[segment.start];
 		const last = linePoints[segment.end];
 		if (y !== null) {
-			points.push({x: first.x, y});
-			points.push({x: last.x, y});
+			points.push({x: first.x, y, _prop: 'x', _ref: first});
+			points.push({x: last.x, y, _prop: 'x', _ref: last});
 		} else if (x !== null) {
-			points.push({x, y: first.y});
-			points.push({x, y: last.y});
+			points.push({x, y: first.y, _prop: 'y', _ref: first});
+			points.push({x, y: last.y, _prop: 'y', _ref: last});
 		}
 	});
 	return points;
@@ -184,6 +184,7 @@ function getTarget(source) {
 	const boundary = computeBoundary(source);
 	let points = [];
 	let _loop = false;
+	let _refPoints = false;
 
 	if (boundary instanceof simpleArc) {
 		return boundary;
@@ -194,8 +195,15 @@ function getTarget(source) {
 		points = boundary;
 	} else {
 		points = pointsFromSegments(boundary, line);
+		_refPoints = true;
 	}
-	return points.length ? new Line({points, options: {tension: 0}, _loop, _fullLoop: _loop}) : null;
+	return points.length ? new Line({
+		points,
+		options: {tension: 0},
+		_loop,
+		_fullLoop: _loop,
+		_refPoints
+	}) : null;
 }
 
 function resolveTarget(sources, index, propagate) {
@@ -264,6 +272,17 @@ function _segments(line, target, property) {
 	const tpoints = target.points;
 	const parts = [];
 
+	if (target._refPoints) {
+		// Update properties from reference points. (In case those points are animating)
+		for (let i = 0, ilen = tpoints.length; i < ilen; ++i) {
+			const point = tpoints[i];
+			const prop = point._prop;
+			if (prop) {
+				point[prop] = point._ref[prop];
+			}
+		}
+	}
+
 	for (let segment of line.segments) {
 		const bounds = getBounds(property, points[segment.start], points[segment.end], segment.loop);