Update Bidi and Font Features demo for 4.0.rc4

[Calinou]

• Enable low processor mode and multiple resolution-friendly project settings for consistency with other demos.
• Use Compatibility rendering method for better performance and compatibility.
• Prevent screenshots from being imported as resources.

[bruvzg]

OpenType feature overrides back. cc @bruvzg

It's now part of variation font, instead of control property.

[bruvzg]

Most fonts and some control properties seems to be not set, and there were some change to the BiDi override as well:

Here's a fix:

diff --git a/gui/bidi_and_font_features/bidi.tscn b/gui/bidi_and_font_features/bidi.tscn
index 37caf7ce..9727b410 100644
--- a/gui/bidi_and_font_features/bidi.tscn
+++ b/gui/bidi_and_font_features/bidi.tscn
@@ -1,8 +1,10 @@
-[gd_scene load_steps=11 format=3 uid="uid://doa7j7q1j4p4e"]
+[gd_scene load_steps=13 format=3 uid="uid://doa7j7q1j4p4e"]
 
 [ext_resource type="FontVariation" uid="uid://dewurnqemtrs" path="res://noto_font.tres" id="1"]
 [ext_resource type="Script" path="res://bidi.gd" id="2"]
+[ext_resource type="FontFile" uid="uid://dcyy0x2u3jocr" path="res://fonts/NotoSansThaiUI_Regular.ttf" id="2_plk2w"]
 [ext_resource type="Script" path="res://custom_st_parser.gd" id="3"]
+[ext_resource type="FontFile" uid="uid://61ui1kmi5tt7" path="res://fonts/NotoNaskhArabicUI_Regular.ttf" id="3_cf43x"]
 [ext_resource type="FontVariation" uid="uid://bymgwaapysw4i" path="res://lib_font.tres" id="4"]
 [ext_resource type="FontFile" uid="uid://bic5b75wmaxwj" path="res://fonts/LinLibertine_R.otf" id="5_dd4o7"]
 
@@ -42,6 +44,8 @@ layout_mode = 3
 anchors_preset = 15
 anchor_right = 1.0
 anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
 script = ExtResource("2")
 
 [node name="TabContainer" type="TabContainer" parent="."]
@@ -64,14 +68,15 @@ theme_override_font_sizes/font_size = 14
 text = "1. Line breaking and space justification."
 
 [node name="LabelTHNoBreak" type="Label" parent="TabContainer/Line breaking and justification"]
-layout_mode = 0
+layout_mode = 1
+anchors_preset = -1
 anchor_top = 0.000891266
 anchor_bottom = 0.000891266
 offset_left = 30.0
-offset_top = 69.5027
-offset_right = 988.0
-offset_bottom = 92.5027
-theme_override_fonts/font = ExtResource("1")
+offset_top = 69.4474
+offset_right = 1046.0
+offset_bottom = 92.4474
+theme_override_fonts/font = ExtResource("2_plk2w")
 theme_override_font_sizes/font_size = 14
 text = "ภาษาไทย หรือ ภาษาไทยกลาง เป็นภาษาราชการและภาษาประจำชาติของประเทศไทย ภาษาไทยเป็นภาษาในกลุ่มภาษาไทซึ่งเป็นกลุ่มย่อยของตระกูลภาษาขร้า-ไท"
 autowrap_mode = 3
@@ -80,11 +85,12 @@ autowrap_mode = 3
 layout_mode = 0
 offset_left = 30.0
 offset_top = 100.0
-offset_right = 333.0
+offset_right = 331.0
 offset_bottom = 200.0
-theme_override_fonts/font = ExtResource("1")
+theme_override_fonts/font = ExtResource("2_plk2w")
 theme_override_font_sizes/font_size = 14
 text = "ภาษาไทย หรือ ภาษาไทยกลาง เป็นภาษาราชการและภาษาประจำชาติของประเทศไทย ภาษาไทยเป็นภาษาในกลุ่มภาษาไทซึ่งเป็นกลุ่มย่อยของตระกูลภาษาขร้า-ไท"
+horizontal_alignment = 3
 autowrap_mode = 3
 
 [node name="LabelJstInfo" type="Label" parent="TabContainer/Line breaking and justification"]
@@ -100,16 +106,18 @@ theme_override_font_sizes/font_size = 14
 text = "2. Kashida justification."
 
 [node name="LabelARNoJst2" type="Label" parent="TabContainer/Line breaking and justification"]
-layout_mode = 0
+layout_mode = 1
+anchors_preset = -1
 anchor_top = 0.000891266
 anchor_bottom = 0.000891266
 offset_left = 30.0
-offset_top = 248.5
-offset_right = 830.0
-offset_bottom = 271.5
-theme_override_fonts/font = ExtResource("1")
+offset_top = 248.447
+offset_right = 258.0
+offset_bottom = 271.447
+theme_override_fonts/font = ExtResource("3_cf43x")
 theme_override_font_sizes/font_size = 14
 text = "آنچ اندر وهم ناید آن شوم"
+horizontal_alignment = 3
 
 [node name="LabelARJst" type="Label" parent="TabContainer/Line breaking and justification"]
 layout_mode = 0
@@ -119,7 +127,7 @@ offset_left = 30.0
 offset_top = 273.5
 offset_right = 255.0
 offset_bottom = 296.5
-theme_override_fonts/font = ExtResource("1")
+theme_override_fonts/font = ExtResource("3_cf43x")
 theme_override_font_sizes/font_size = 14
 text = "آنچ اندر وهم ناید آن شوم"
 
@@ -143,7 +151,7 @@ offset_left = 30.0
 offset_top = 60.0
 offset_right = 260.0
 offset_bottom = 90.0
-theme_override_fonts/font = ExtResource("1")
+theme_override_fonts/font = ExtResource("3_cf43x")
 theme_override_font_sizes/font_size = 14
 text = "Najaf (ٱلنَّجَف‎), also known as Baniqia."
 editable = false
@@ -156,7 +164,7 @@ offset_left = 270.0
 offset_top = 60.0
 offset_right = 500.0
 offset_bottom = 90.0
-theme_override_fonts/font = ExtResource("1")
+theme_override_fonts/font = ExtResource("3_cf43x")
 theme_override_font_sizes/font_size = 14
 text = "Najaf (ٱلنَّجَف‎), also known as Baniqia."
 editable = false
@@ -169,7 +177,7 @@ offset_left = 510.0
 offset_top = 60.0
 offset_right = 740.0
 offset_bottom = 90.0
-theme_override_fonts/font = ExtResource("1")
+theme_override_fonts/font = ExtResource("3_cf43x")
 theme_override_font_sizes/font_size = 14
 text = "Najaf (ٱلنَّجَف‎), also known as Baniqia."
 editable = false
@@ -183,7 +191,7 @@ offset_left = 30.0
 offset_top = 99.5
 offset_right = 260.0
 offset_bottom = 129.5
-theme_override_fonts/font = ExtResource("1")
+theme_override_fonts/font = ExtResource("3_cf43x")
 theme_override_font_sizes/font_size = 14
 text = "الإنجليزية أو الإنغليزية (بالإنجليزية: English)‏،"
 editable = false
@@ -196,7 +204,7 @@ offset_left = 270.0
 offset_top = 100.0
 offset_right = 500.0
 offset_bottom = 130.0
-theme_override_fonts/font = ExtResource("1")
+theme_override_fonts/font = ExtResource("3_cf43x")
 theme_override_font_sizes/font_size = 14
 text = "الإنجليزية أو الإنغليزية (بالإنجليزية: English)‏،"
 editable = false
@@ -208,7 +216,7 @@ offset_left = 510.0
 offset_top = 100.0
 offset_right = 740.0
 offset_bottom = 130.0
-theme_override_fonts/font = ExtResource("1")
+theme_override_fonts/font = ExtResource("3_cf43x")
 theme_override_font_sizes/font_size = 14
 text = "الإنجليزية أو الإنغليزية (بالإنجليزية: English)‏،"
 editable = false
@@ -258,7 +266,7 @@ offset_left = 582.0
 offset_top = 188.0
 offset_right = 882.0
 offset_bottom = 218.0
-theme_override_fonts/font = ExtResource("1")
+theme_override_fonts/font = ExtResource("3_cf43x")
 theme_override_font_sizes/font_size = 14
 editable = false
 context_menu_enabled = false
@@ -269,7 +277,7 @@ offset_left = 582.0
 offset_top = 236.0
 offset_right = 882.0
 offset_bottom = 266.0
-theme_override_fonts/font = ExtResource("1")
+theme_override_fonts/font = ExtResource("3_cf43x")
 theme_override_font_sizes/font_size = 14
 editable = false
 context_menu_enabled = false
diff --git a/gui/bidi_and_font_features/custom_st_parser.gd b/gui/bidi_and_font_features/custom_st_parser.gd
index 3b63dc6b..02f3396a 100644
--- a/gui/bidi_and_font_features/custom_st_parser.gd
+++ b/gui/bidi_and_font_features/custom_st_parser.gd
@@ -7,8 +7,8 @@ func _structured_text_parser(args, text):
 	var count = int(tags.size())
 	output.clear()
 	for i in range(count):
-		var range1 = Vector2i(prev, prev + tags[i].length())
-		var range2 = Vector2i(prev + tags[i].length(), prev + tags[i].length() + 1)
+		var range1 = Vector3i(prev, prev + tags[i].length(), TextServer.DIRECTION_AUTO)
+		var range2 = Vector3i(prev + tags[i].length(), prev + tags[i].length() + 1, TextServer.DIRECTION_AUTO)
 		output.push_front(range1)
 		output.push_front(range2)
 		prev = prev + tags[i].length() + 1
diff --git a/gui/bidi_and_font_features/fonts/NotoNaskhArabicUI_Regular.ttf.import b/gui/bidi_and_font_features/fonts/NotoNaskhArabicUI_Regular.ttf.import
index dbd37cb3..b19a5027 100644
--- a/gui/bidi_and_font_features/fonts/NotoNaskhArabicUI_Regular.ttf.import
+++ b/gui/bidi_and_font_features/fonts/NotoNaskhArabicUI_Regular.ttf.import
@@ -24,7 +24,7 @@ hinting=1
 subpixel_positioning=1
 oversampling=0.0
 Fallbacks=null
-fallbacks=[]
+fallbacks=[Resource("res://fonts/NotoSansUI_Regular.ttf")]
 Compress=null
 compress=true
 preload=[]
diff --git a/gui/bidi_and_font_features/noto_font.tres b/gui/bidi_and_font_features/noto_font.tres
index bed946f8..a95e2afb 100644
--- a/gui/bidi_and_font_features/noto_font.tres
+++ b/gui/bidi_and_font_features/noto_font.tres
@@ -1,10 +1,3 @@
-[gd_resource type="FontVariation" load_steps=5 format=3 uid="uid://dewurnqemtrs"]
-
-[ext_resource type="FontFile" uid="uid://dcyy0x2u3jocr" path="res://fonts/NotoSansThaiUI_Regular.ttf" id="1"]
-[ext_resource type="FontFile" uid="uid://61ui1kmi5tt7" path="res://fonts/NotoNaskhArabicUI_Regular.ttf" id="2"]
-[ext_resource type="FontFile" uid="uid://cwer1pi5ka4io" path="res://fonts/NotoSansHebrew_Regular.ttf" id="3"]
-[ext_resource type="FontFile" uid="uid://ba53h385o6ips" path="res://fonts/NotoSansUI_Regular.ttf" id="4"]
+[gd_resource type="FontVariation" format=3 uid="uid://dewurnqemtrs"]
 
 [resource]
-base_font = ExtResource("1")
-fallbacks = [ExtResource("2"), ExtResource("3"), ExtResource("4")]

[Calinou]

Rebased and tested on 4.0.rc1. Fixed the font display in the Tree and associated LineEdits on the second tab.