asashour / skia-test

skia-test

Introduction

This tests https://bugs.chromium.org/p/skia/issues/detail?id=13894

The expectation, that at some value, the RTL should have offset of 4, however it seems that the maximum is 3.

It seems to originate from globalClusterIndex in Run.h.

Linux results

LTR

RTL

Windows results

It is noted that on Flutter, the values are something like:

[TextBox.fromLTRBD(0.2, -0.4, 25.0, 16.0, TextDirection.rtl)]
-40: TextPosition(offset: 3, affinity: TextAffinity.downstream)
-30: TextPosition(offset: 3, affinity: TextAffinity.downstream)
-20: TextPosition(offset: 3, affinity: TextAffinity.downstream)
-10: TextPosition(offset: 3, affinity: TextAffinity.downstream)
0: TextPosition(offset: 3, affinity: TextAffinity.downstream)
10: TextPosition(offset: 2, affinity: TextAffinity.downstream)
20: TextPosition(offset: 1, affinity: TextAffinity.upstream)
30: TextPosition(offset: 0, affinity: TextAffinity.downstream)
40: TextPosition(offset: 0, affinity: TextAffinity.downstream)

LTR

left: 0.5
top: -0.21
right: 45.84
bottom: 31
-100: 0
-90: 0
-80: 0
-70: 0
-60: 0
-50: 0
-40: 0
-30: 0
-20: 0
-10: 0
0: 0
10: 1
20: 1
30: 2
40: 3
50: 3
60: 4
70: 4
80: 4
90: 4

RTL

left: 862.42  # what are those very big values, is it because of the font?
top: -0.21
right: 900    # what are those very big values, is it because of the font?
bottom: 31
-100: 3
-90: 3
-80: 3
-70: 3
-60: 3
-50: 3
-40: 3
-30: 3
-20: 3
-10: 3
0: 3
10: 3
20: 3
30: 3
40: 3
50: 3
60: 3
70: 3
80: 3
90: 3