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Use system fonts as fallback and improve system font handling.

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Add support for font weight and stretch selection when using system fonts.
Add function to get system fallback font from a font name, style, text, and language code.
Implement system font support for Android.
Use system fonts as a last resort fallback.
This commit is contained in:
bruvzg
2022-11-21 15:04:01 +02:00
parent 015dc492de
commit ecec415988
51 changed files with 2756 additions and 150 deletions
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15
doc/classes/SystemFont.xml
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@@ -7,23 +7,32 @@
<description>
[SystemFont] loads a font from a system font with the first matching name from [member font_names].
It will attempt to match font style, but it's not guaranteed.
The returned font might be part of a font collection or be a variable font with OpenType "weight" and/or "italic" features set.
The returned font might be part of a font collection or be a variable font with OpenType "weight", "width" and/or "italic" features set.
You can create [FontVariation] of the system font for fine control over its features.
</description>
<tutorials>
</tutorials>
<members>
<member name="allow_system_fallback" type="bool" setter="set_allow_system_fallback" getter="is_allow_system_fallback" default="true">
If set to [code]true[/code], system fonts can be automatically used as fallbacks.
</member>
<member name="antialiasing" type="int" setter="set_antialiasing" getter="get_antialiasing" enum="TextServer.FontAntialiasing" default="1">
Font anti-aliasing mode.
</member>
<member name="fallbacks" type="Font[]" setter="set_fallbacks" getter="get_fallbacks" default="[]">
Array of fallback [Font]s.
</member>
<member name="font_italic" type="bool" setter="set_font_italic" getter="get_font_italic" default="false">
If set to [code]true[/code], italic or oblique font is preferred.
</member>
<member name="font_names" type="PackedStringArray" setter="set_font_names" getter="get_font_names" default="PackedStringArray()">
Array of font family names to search, first matching font found is used.
</member>
<member name="font_style" type="int" setter="set_font_style" getter="get_font_style" enum="TextServer.FontStyle" default="0">
Font style flags, see [enum TextServer.FontStyle].
<member name="font_stretch" type="int" setter="set_font_stretch" getter="get_font_stretch" default="100">
Preferred font stretch amount, compared to a normal width. A percentage value between [code]50%[/code] and [code]200%[/code].
</member>
<member name="font_weight" type="int" setter="set_font_weight" getter="get_font_weight" default="400">
Preferred weight (boldness) of the font. A value in the [code]100...999[/code] range, normal font weight is [code]400[/code], bold font weight is [code]700[/code].
</member>
<member name="force_autohinter" type="bool" setter="set_force_autohinter" getter="is_force_autohinter" default="false">
If set to [code]true[/code], auto-hinting is supported and preferred over font built-in hinting.