fix(): use sendObjectToPlane in mergeClipPaths

[ShaMan123]

I win 😋

---

That is why the following is correct.

- sendObjectToPlane(b, b.calcTransformMatrix(), a.calcTransformMatrix())
+ sendObjectToPlane(b, b.group?.calcTransformMatrix(), a.calcTransformMatrix())

Taking b's containing plane matrix and multiplying with b's own matrix gives us b.calcTransformMatrix()

I don't think so, i think you are inverting a multiplcation order.
If there is no group, you send null ( let's say is conditionally an IMatrix ).
In the case the group exist you are going to multiply forst for the group matrix and then for the object one,
in the case as it is today, you are multiplying for the ( OBJECT x CONTAINER ).

I ll write a failing unit test, and then you'll owe me a cocacola first time we ever meet.

Originally posted by @asturur in #8230 (comment)

[github-actions]

Coverage after merging patch-merge-clip-paths into master will be

82.45%

Coverage Report

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
HEADER.js	54.90%	48.15%	0%	65.22%	105, 105, 105, 12, 14, 14, 14, 14, 14, 16–17, 21, 21–22, 22, 22, 24, 24, 26, 28, 30–31
src
cache.ts	97.06%	90%	100%	100%	57
canvas.class.ts	93.44%	90.36%	94.23%	95.58%	1077, 1077–1078, 1081, 1101, 1101, 1136, 1169–1170, 1198–1199, 1232, 1240, 1350–1351, 1353–1354, 1374–1375, 1533, 1538, 1548, 1552, 485–486, 491, 500, 649–651, 696–697, 761–762, 765, 767, 814–816, 858, 863–864, 892–893
config.ts	77.27%	66.67%	66.67%	84.62%	130, 138–140, 151–153
constants.ts	100%	100%	100%	100%
intersection.class.ts	100%	100%	100%	100%
pattern.class.ts	92.19%	85.71%	100%	96.30%	110, 116, 127, 136, 88
point.class.ts	100%	100%	100%	100%
shadow.class.ts	95.95%	90%	100%	100%	172, 239, 8
static_canvas.class.ts	89.69%	82.87%	96.70%	92.57%	1152–1153, 1153, 1153–1154, 1288, 1354–1355, 1358, 1407–1408, 1501, 1516, 1520, 1546–1547, 1576–1577, 1610–1611, 1652–1653, 1656, 1658, 1658, 1658, 1658, 1662, 1662, 1662–1664, 1686–1687, 1728–1729, 1732, 1734, 1734, 1734, 1734, 1738, 1738, 1738–1740, 1809, 1809–1810, 1813, 1813–1814, 1873, 1875, 1875, 1875, 1875, 1875–1876, 1879–1880, 1880, 1880–1881, 1884, 1884, 1884, 1886, 1889, 1895, 1897–1898, 1898, 1898, 1901–1902, 1902, 1902, 1905, 278–279, 281–282, 284–285, 298–299, 301–302, 616, 642, 698–701, 881, 901
src/brushes
base_brush.class.ts	100%	100%	100%	100%
circle_brush.class.ts	2.99%	0%	0%	3.92%	100–101, 103, 105–107, 116, 116, 116, 118, 120, 122–124, 126–129, 137, 144, 146, 26, 31–32, 40–44, 48–52, 59–62, 70–74, 76, 84, 84, 84, 84, 84–85, 87, 87, 87–90, 92
pattern_brush.class.ts	5.26%	0%	0%	8.33%	16, 20–23, 25–26, 26, 26–29, 37–38, 40, 44, 55, 55, 55, 63–65, 65, 65, 72–73, 75–76, 76, 80
pencil_brush.class.ts	91.95%	85.42%	100%	93.69%	125–126, 155, 155–157, 279, 283, 288–289, 71–72, 87–88
spray_brush.class.ts	2.30%	0%	0%	3.08%	102–104, 106–107, 115, 115, 115, 115, 115–116, 118–119, 126–127, 129, 131–135, 144, 148–149, 149, 157, 157, 157–160, 162–165, 169–170, 172, 174–177, 180, 187–188, 190, 192–193, 195, 202–203, 205–206, 209, 209, 216, 216, 220, 25–26, 28–30, 30, 30–32, 36, 45, 52, 59, 66, 73, 80, 92–94
src/color
color.class.ts	91.67%	84.51%	100%	94.44%	325–326, 330–331, 334–335, 41, 45, 72–73, 73, 75, 75, 75–76, 78–79
color_map.ts	100%	100%	100%	100%
constants.ts	100%	100%	100%	100%
index.ts	100%	100%	100%	100%
util.ts	100%	100%	100%	100%
src/controls
control.class.ts	90.24%	81.48%	86.67%	97.50%	210, 304, 304, 348, 372, 6
controls.actions.ts	76.80%	69.20%	93.75%	80.67%	161, 163, 163, 163, 165, 167, 26, 28, 28, 28, 290–293, 321, 323, 330–331, 333, 333–334, 336–337, 341, 373, 375, 382–383, 385, 385–386, 388–389, 393, 421–422, 424, 426, 431, 434, 434, 434–435, 435, 435, 437, 437, 437–438, 438, 438, 441, 441, 441–442, 442, 442, 475–476, 478, 480, 485, 488, 488, 488–489, 489, 489, 491, 491, 491–492, 492, 492, 495, 495, 495–496, 496, 496, 520–522, 528, 528, 528–529, 532–535, 537, 537, 537–539, 539, 539–541, 543, 543, 543–545, 545, 545–546, 551, 551, 551–552, 554, 556–558, 57, 589–590, 592–594, 641–643, 8, 841
controls.render.ts	85.11%	84.78%	100%	84.78%	23, 27, 42–49, 58–59, 82, 86
default_controls.ts	94.29%	50%	100%	100%	115, 83
src/filters
2d_backend.class.ts	96.43%	83.33%	100%	100%	78
WebGLProbe.ts	60%	80%	57.14%	52.17%	37–38, 48–52, 66–69, 71, 77
base_filter.class.ts	28.90%	31.82%	36.36%	26.17%	100–102, 102, 102–103, 112–116, 116, 116–117, 124–125, 125, 125–128, 143, 159, 169–174, 178, 181, 181, 181–184, 184, 184–185, 185, 188–189, 195, 204–205, 210–214, 257–260, 273, 273, 273–274, 276, 292–294, 294, 294, 294, 294–295, 297, 299–300, 306–307, 309–311, 315–316, 318, 322–324, 328, 332, 352, 352, 352–356, 393, 78, 78, 78–79, 79, 79–80, 80, 80–81, 86–89, 89, 89–90, 99
blendcolor_filter.class.ts	10%	4.76%	28.57%	9.72%	104,

[ShaMan123]

Refactored src/util/misc/planeChange.ts a bit, to make more readable

[ShaMan123]

I want to add a signature that accepts objects once we migrate Object so I can do instanceof if it won't overkill imports or make it strange

[ShaMan123]

Naming: calcChangePlaneMatrix or calcPlaneChangeMatrix?

[ShaMan123]

fixes passing null as matrix

fabric.js/src/mixins/canvas_events.mixin.ts

Line 1097 in f9761dd

fabric.util.sendPointToPlane(pointer, null, target.group.calcTransformMatrix()) :

[asturur]

Yes you win, and now i see where i m wrong.

the multiplication of calcTransformMatrix is from the outside to the inside, while i was sure it was from the inside to the outside!!

[ShaMan123]

READY
If you are satisfied with naming merge it

[asturur]

maybe this wasn't a fix(), but only an optimization or a refactor

[ShaMan123]

it fixed the null arg usage in src/mixins/canvas_events.mixin.ts