XFA - Draw arcs correctly

- it aims to fix #14315;
- take into account the startAngle to compute the coordinates of the final point.

src/core/xfa/template.js

@@ -475,7 +475,7 @@ class Arc extends XFAObject {
       },
     };
 
-    if (this.startAngle === 0 && this.sweepAngle === 360) {
+    if (this.sweepAngle === 360) {
       arc = {
         name: "ellipse",
         attributes: {
@@ -490,12 +490,12 @@ class Arc extends XFAObject {
     } else {
       const startAngle = (this.startAngle * Math.PI) / 180;
       const sweepAngle = (this.sweepAngle * Math.PI) / 180;
-      const largeArc = this.sweepAngle - this.startAngle > 180 ? 1 : 0;
+      const largeArc = this.sweepAngle > 180 ? 1 : 0;
       const [x1, y1, x2, y2] = [
         50 * (1 + Math.cos(startAngle)),
         50 * (1 - Math.sin(startAngle)),
-        50 * (1 + Math.cos(sweepAngle)),
+        50 * (1 + Math.cos(startAngle + sweepAngle)),
-        50 * (1 - Math.sin(sweepAngle)),
+        50 * (1 - Math.sin(startAngle + sweepAngle)),
       ];
 
       arc = {

test/pdfs/.gitignore

@@ -489,3 +489,4 @@
 !issue14267.pdf
 !PDFBOX-4352-0.pdf
 !REDHAT-1531897-0.pdf
+!xfa_issue14315.pdf

test/test_manifest.json

@@ -1037,6 +1037,13 @@
        "lastPage": 1,
        "type": "eq"
     },
+    {  "id": "xfa_issue14315",
+       "file": "pdfs/xfa_issue14315.pdf",
+       "md5": "e239710875f9dea72fd94c20672a29e1",
+       "rounds": 1,
+       "enableXfa": true,
+       "type": "eq"
+    },
     {  "id": "xfa_issue14071",
        "file": "pdfs/xfa_issue14071.pdf",
        "md5": "7ef09705091602668ce22086c83a90f3",