Merge pull request #932 from Calinou/bidi-font-features-add-variable-…

…fonts-system-fonts

Add variable fonts and system fonts to BiDi and Font Features demo

gui/bidi_and_font_features/README.md

@@ -13,3 +13,7 @@ Renderer: Compatibility
 ![Screenshot](screenshots/line_break_and_fill.png)
 
 ![Screenshot](screenshots/font_features.png)
+
+![Screenshot](screenshots/variable_fonts.webp)
+
+![Screenshot](screenshots/system_fonts.webp)

gui/bidi_and_font_features/bidi.gd

@@ -1,33 +1,129 @@
 extends Control
 
-func _ready():
-	var tree = $"TabContainer/Text direction/Tree"
-	var root = tree.create_item()
+@onready var variable_font_variation: FontVariation = $"TabContainer/Variable fonts/VariableFontPreview".get_theme_font("font")
+
+func _ready() -> void:
+	var tree: Tree = $"TabContainer/Text direction/Tree"
+	var root := tree.create_item()
 	tree.set_hide_root(true)
-	var first = tree.create_item(root)
+	var first := tree.create_item(root)
 	first.set_text(0, "רֵאשִׁית")
-	var second = tree.create_item(first)
+	var second := tree.create_item(first)
 	second.set_text(0, "שֵׁנִי")
-	var third = tree.create_item(second)
+	var third := tree.create_item(second)
 	third.set_text(0, "שְׁלִישִׁי")
-	var fourth = tree.create_item(third)
+	var fourth := tree.create_item(third)
 	fourth.set_text(0, "fourth")
 
-func _on_Tree_item_selected():
-	var tree = $"TabContainer/Text direction/Tree"
-	var path = ""
-	var item = tree.get_selected()
+func _on_Tree_item_selected() -> void:
+	var tree: Tree = $"TabContainer/Text direction/Tree"
+	var path := ""
+	var item := tree.get_selected()
 	while item != null:
 		path = item.get_text(0) + "/" + path
 		item = item.get_parent()
 	$"TabContainer/Text direction/LineEditST".text = path
 	$"TabContainer/Text direction/LineEditNoST".text = path
 
-func _on_LineEditCustomSTDst_text_changed(new_text):
+func _on_LineEditCustomSTDst_text_changed(new_text: String) -> void:
 	$"TabContainer/Text direction/LineEditCustomSTSource".text = new_text
 
-func _on_LineEditCustomSTSource_text_changed(new_text):
+func _on_LineEditCustomSTSource_text_changed(new_text: String) -> void:
 	$"TabContainer/Text direction/LineEditCustomSTDst".text = new_text
 
-func _on_LineEditCustomSTDst_tree_entered():
-	$"TabContainer/Text direction/LineEditCustomSTDst".text = $"TabContainer/Text direction/LineEditCustomSTSource".text # Refresh text to apply custom script once it's loaded.
+func _on_LineEditCustomSTDst_tree_entered() -> void:
+	# Refresh text to apply custom script once it's loaded.
+	$"TabContainer/Text direction/LineEditCustomSTDst".text = $"TabContainer/Text direction/LineEditCustomSTSource".text
+
+
+func _on_variable_size_value_changed(value: float) -> void:
+	$"TabContainer/Variable fonts/Variables/Size/Value".text = str(value)
+	# This is also available on non-variable fonts.
+	$"TabContainer/Variable fonts/VariableFontPreview".add_theme_font_size_override("font_size", value)
+
+
+func _on_variable_weight_value_changed(value: float) -> void:
+	$"TabContainer/Variable fonts/Variables/Weight/Value".text = str(value)
+	# Workaround to make the variable font axis value effective. This requires duplicating the dictionary.
+	var dict = variable_font_variation.variation_opentype.duplicate()
+	dict["weight"] = value
+	variable_font_variation.variation_opentype = dict
+
+
+func _on_variable_slant_value_changed(value: float) -> void:
+	$"TabContainer/Variable fonts/Variables/Slant/Value".text = str(value)
+	# Workaround to make the variable font axis value effective. This requires duplicating the dictionary.
+	var dict = variable_font_variation.variation_opentype.duplicate()
+	dict["slant"] = value
+	variable_font_variation.variation_opentype = dict
+
+
+func _on_variable_cursive_toggled(button_pressed: bool) -> void:
+	$"TabContainer/Variable fonts/Variables/Cursive".button_pressed = button_pressed
+	# Workaround to make the variable font axis value effective. This requires duplicating the dictionary.
+	var dict = variable_font_variation.variation_opentype.duplicate()
+	dict["custom_CRSV"] = int(button_pressed)
+	variable_font_variation.variation_opentype = dict
+
+
+func _on_variable_casual_toggled(button_pressed: bool) -> void:
+	$"TabContainer/Variable fonts/Variables/Casual".button_pressed = button_pressed
+	# Workaround to make the variable font axis value effective. This requires duplicating the dictionary.
+	var dict = variable_font_variation.variation_opentype.duplicate()
+	dict["custom_CASL"] = int(button_pressed)
+	variable_font_variation.variation_opentype = dict
+
+
+func _on_variable_monospace_toggled(button_pressed: bool) -> void:
+	$"TabContainer/Variable fonts/Variables/Monospace".button_pressed = button_pressed
+	# Workaround to make the variable font axis value effective. This requires duplicating the dictionary.
+	var dict = variable_font_variation.variation_opentype.duplicate()
+	dict["custom_MONO"] = int(button_pressed)
+	variable_font_variation.variation_opentype = dict
+
+
+func _on_system_font_value_text_changed(new_text: String) -> void:
+	for label in [
+		$"TabContainer/System fonts/VBoxContainer/SansSerif/Value",
+		$"TabContainer/System fonts/VBoxContainer/Serif/Value",
+		$"TabContainer/System fonts/VBoxContainer/Monospace/Value",
+		$"TabContainer/System fonts/VBoxContainer/Cursive/Value",
+		$"TabContainer/System fonts/VBoxContainer/Fantasy/Value",
+		$"TabContainer/System fonts/VBoxContainer/Custom/Value"
+	]:
+		label.text = new_text
+
+
+func _on_system_font_weight_value_changed(value: float) -> void:
+	$"TabContainer/System fonts/Weight/Value".text = str(value)
+	for label in [
+		$"TabContainer/System fonts/VBoxContainer/SansSerif/Value",
+		$"TabContainer/System fonts/VBoxContainer/Serif/Value",
+		$"TabContainer/System fonts/VBoxContainer/Monospace/Value",
+		$"TabContainer/System fonts/VBoxContainer/Cursive/Value",
+		$"TabContainer/System fonts/VBoxContainer/Fantasy/Value",
+		$"TabContainer/System fonts/VBoxContainer/Custom/Value"
+	]:
+		var system_font: SystemFont = label.get_theme_font("font")
+		system_font.font_weight = value
+
+func _on_system_font_italic_toggled(button_pressed: bool) -> void:
+	for label in [
+		$"TabContainer/System fonts/VBoxContainer/SansSerif/Value",
+		$"TabContainer/System fonts/VBoxContainer/Serif/Value",
+		$"TabContainer/System fonts/VBoxContainer/Monospace/Value",
+		$"TabContainer/System fonts/VBoxContainer/Cursive/Value",
+		$"TabContainer/System fonts/VBoxContainer/Fantasy/Value",
+		$"TabContainer/System fonts/VBoxContainer/Custom/Value"
+	]:
+		var system_font: SystemFont = label.get_theme_font("font")
+		system_font.font_italic = button_pressed
+
+
+func _on_system_font_name_text_changed(new_text: String) -> void:
+	var system_font: SystemFont = $"TabContainer/System fonts/VBoxContainer/Custom/FontName".get_theme_font("font")
+	system_font.font_names[0] = new_text
+
+
+
+