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<?xml version="1.0" encoding="UTF-8" ?>
<class name= "Font" inherits= "Resource" version= "4.0" >
<brief_description >
Font class is set of font data sources used to draw text.
</brief_description>
<description >
Font contains a set of glyphs to represent Unicode characters, as well as the ability to draw it with variable width, ascent, descent and kerning.
[b]Note:[/b] A character is a symbol that represents an item (letter, digit etc.) in an abstract way.
[b]Note:[/b] A glyph is a bitmap or shape used to draw a one or more characters in a context-dependent manner. Glyph indices are bound to the specific font data source.
[b]Note:[/b] If a non of the font data sources contain glyphs for a character used in a string, the character in question will be replaced with a box displaying its hexadecimal code.
[codeblocks]
[gdscript]
var font = Font.new()
font.add_data(load("res://BarlowCondensed-Bold.ttf"))
$"Label".set("custom_fonts/font", font)
$"Label".set("custom_fonts/font_size", 64)
[/gdscript]
[csharp]
var font = new Font();
font.AddData(ResourceLoader.Load< FontData> ("res://BarlowCondensed-Bold.ttf"));
GetNode("Label").Set("custom_fonts/font", font);
GetNode("Label").Set("custom_font_sizes/font_size", 64);
[/csharp]
[/codeblocks]
To control font substitution priority use [FontData] language and script support.
Use language overrides to use same [Font] stack for multiple languages:
[codeblocks]
[gdscript]
# Use Naskh font for Persian and Nastaʼ
var font_data_fa = load("res://NotoNaskhArabicUI_Regular.ttf");
font_data_fa.set_language_support_override("fa", true);
font_data_fa.set_language_support_override("ur", false);
var font_data_ur = load("res://NotoNastaliqUrdu_Regular.ttf");
font_data_ur.set_language_support_override("fa", false);
font_data_ur.set_language_support_override("ur", true);
[/gdscript]
[csharp]
// Use Naskh font for Persian and Nastaʼ
var fontDataFA = ResourceLoader.Load< FontData> ("res://NotoNaskhArabicUI_Regular.ttf");
fontDataFA.SetLanguageSupportOverride("fa", true);
fontDataFA.SetLanguageSupportOverride("ur", false);
var fontDataUR = ResourceLoader.Load< FontData> ("res://NotoNastaliqUrdu_Regular.ttf");
fontDataUR.SetLanguageSupportOverride("fa", false);
fontDataUR.SetLanguageSupportOverride("ur", true);
[/csharp]
[/codeblocks]
Use script overrides to specify supported scripts for bitmap font or for less common scripts not directly supported by TrueType format:
[codeblocks]
[gdscript]
# Use specified font for Egyptian hieroglyphs.
var font_data = load("res://unifont.ttf");
font_data.set_script_support_override("Egyp", true);
[/gdscript]
[csharp]
// Use specified font for Egyptian hieroglyphs.
var fontData = ResourceLoader.Load< FontData> ("res://unifont.ttf");
fontData.SetScriptSupportOverride("Egyp", true);
[/csharp]
[/codeblocks]
</description>
<tutorials >
</tutorials>
<methods >
<method name= "add_data" >
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<return type= "void" />
<argument index= "0" name= "data" type= "FontData" />
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<description >
Add font data source to the set.
</description>
</method>
<method name= "draw_char" qualifiers= "const" >
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<return type= "float" />
<argument index= "0" name= "canvas_item" type= "RID" />
<argument index= "1" name= "pos" type= "Vector2" />
<argument index= "2" name= "char" type= "int" />
<argument index= "3" name= "next" type= "int" default= "0" />
<argument index= "4" name= "size" type= "int" default= "-1" />
<argument index= "5" name= "modulate" type= "Color" default= "Color(1, 1, 1, 1)" />
<argument index= "6" name= "outline_size" type= "int" default= "0" />
<argument index= "7" name= "outline_modulate" type= "Color" default= "Color(1, 1, 1, 0)" />
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<description >
Draw a single Unicode character [code]char[/code] into a canvas item using the font, at a given position, with [code]modulate[/code] color, and optionally kerning if [code]next[/code] is passed. [code]position[/code] specifies the baseline, not the top. To draw from the top, [i]ascent[/i] must be added to the Y axis.
[b]Note:[/b] Do not use this function to draw strings character by character, use [method draw_string] or [TextLine] instead.
</description>
</method>
<method name= "draw_multiline_string" qualifiers= "const" >
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<return type= "void" />
<argument index= "0" name= "canvas_item" type= "RID" />
<argument index= "1" name= "pos" type= "Vector2" />
<argument index= "2" name= "text" type= "String" />
<argument index= "3" name= "align" type= "int" enum= "HAlign" default= "0" />
<argument index= "4" name= "width" type= "float" default= "-1" />
<argument index= "5" name= "max_lines" type= "int" default= "-1" />
<argument index= "6" name= "size" type= "int" default= "-1" />
<argument index= "7" name= "modulate" type= "Color" default= "Color(1, 1, 1, 1)" />
<argument index= "8" name= "outline_size" type= "int" default= "0" />
<argument index= "9" name= "outline_modulate" type= "Color" default= "Color(1, 1, 1, 0)" />
<argument index= "10" name= "flags" type= "int" default= "51" />
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<description >
Breaks [code]text[/code] to the lines using rules specified by [code]flags[/code] and draws it into a canvas item using the font, at a given position, with [code]modulate[/code] color, optionally clipping the width and aligning horizontally. [code]position[/code] specifies the baseline of the first line, not the top. To draw from the top, [i]ascent[/i] must be added to the Y axis.
See also [method CanvasItem.draw_multiline_string].
</description>
</method>
<method name= "draw_string" qualifiers= "const" >
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<return type= "void" />
<argument index= "0" name= "canvas_item" type= "RID" />
<argument index= "1" name= "pos" type= "Vector2" />
<argument index= "2" name= "text" type= "String" />
<argument index= "3" name= "align" type= "int" enum= "HAlign" default= "0" />
<argument index= "4" name= "width" type= "float" default= "-1" />
<argument index= "5" name= "size" type= "int" default= "-1" />
<argument index= "6" name= "modulate" type= "Color" default= "Color(1, 1, 1, 1)" />
<argument index= "7" name= "outline_size" type= "int" default= "0" />
<argument index= "8" name= "outline_modulate" type= "Color" default= "Color(1, 1, 1, 0)" />
<argument index= "9" name= "flags" type= "int" default= "3" />
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<description >
Draw [code]text[/code] into a canvas item using the font, at a given position, with [code]modulate[/code] color, optionally clipping the width and aligning horizontally. [code]position[/code] specifies the baseline, not the top. To draw from the top, [i]ascent[/i] must be added to the Y axis.
See also [method CanvasItem.draw_string].
</description>
</method>
<method name= "get_ascent" qualifiers= "const" >
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<return type= "float" />
<argument index= "0" name= "size" type= "int" default= "-1" />
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<description >
Returns the average font ascent (number of pixels above the baseline).
[b]Note:[/b] Real ascent of the string is context-dependent and can be significantly different from the value returned by this function. Use it only as rough estimate (e.g. as the ascent of empty line).
</description>
</method>
<method name= "get_char_size" qualifiers= "const" >
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<return type= "Vector2" />
<argument index= "0" name= "char" type= "int" />
<argument index= "1" name= "next" type= "int" default= "0" />
<argument index= "2" name= "size" type= "int" default= "-1" />
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<description >
Returns the size of a character, optionally taking kerning into account if the next character is provided.
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[b]Note:[/b] Do not use this function to calculate width of the string character by character, use [method get_string_size] or [TextLine] instead. The height returned is the font height (see also [method get_height]) and has no relation to the glyph height.
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</description>
</method>
<method name= "get_data" qualifiers= "const" >
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<return type= "FontData" />
<argument index= "0" name= "idx" type= "int" />
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<description >
Returns the font data source at index [code]idx[/code]. If the index does not exist, returns [code]null[/code].
</description>
</method>
<method name= "get_data_count" qualifiers= "const" >
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<return type= "int" />
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<description >
Returns the number of font data sources.
</description>
</method>
<method name= "get_descent" qualifiers= "const" >
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<return type= "float" />
<argument index= "0" name= "size" type= "int" default= "-1" />
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<description >
Returns the average font descent (number of pixels below the baseline).
[b]Note:[/b] Real descent of the string is context-dependent and can be significantly different from the value returned by this function. Use it only as rough estimate (e.g. as the descent of empty line).
</description>
</method>
<method name= "get_height" qualifiers= "const" >
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<return type= "float" />
<argument index= "0" name= "size" type= "int" default= "-1" />
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<description >
Returns the total average font height (ascent plus descent) in pixels.
[b]Note:[/b] Real height of the string is context-dependent and can be significantly different from the value returned by this function. Use it only as rough estimate (e.g. as the height of empty line).
</description>
</method>
<method name= "get_multiline_string_size" qualifiers= "const" >
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<return type= "Vector2" />
<argument index= "0" name= "text" type= "String" />
<argument index= "1" name= "width" type= "float" default= "-1" />
<argument index= "2" name= "size" type= "int" default= "-1" />
<argument index= "3" name= "flags" type= "int" default= "48" />
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<description >
Returns the size of a bounding box of a string broken into the lines, taking kerning and advance into account.
See also [method draw_multiline_string].
</description>
</method>
<method name= "get_spacing" qualifiers= "const" >
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<return type= "int" />
<argument index= "0" name= "type" type= "int" />
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<description >
Returns the spacing for the given [code]type[/code] (see [enum SpacingType]).
</description>
</method>
<method name= "get_string_size" qualifiers= "const" >
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<return type= "Vector2" />
<argument index= "0" name= "text" type= "String" />
<argument index= "1" name= "size" type= "int" default= "-1" />
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<description >
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Returns the size of a bounding box of a string, taking kerning and advance into account.
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[b]Note:[/b] Real height of the string is context-dependent and can be significantly different from the value returned by [method get_height].
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See also [method draw_string].
</description>
</method>
<method name= "get_supported_chars" qualifiers= "const" >
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<return type= "String" />
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<description >
Returns a string containing all the characters available in the font.
If a given character is included in more than one font data source, it appears only once in the returned string.
</description>
</method>
<method name= "get_underline_position" qualifiers= "const" >
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<return type= "float" />
<argument index= "0" name= "size" type= "int" default= "-1" />
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<description >
Return average pixel offset of the underline below the baseline.
[b]Note:[/b] Real underline position of the string is context-dependent and can be significantly different from the value returned by this function. Use it only as rough estimate.
</description>
</method>
<method name= "get_underline_thickness" qualifiers= "const" >
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<return type= "float" />
<argument index= "0" name= "size" type= "int" default= "-1" />
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<description >
Return average thickness of the underline.
[b]Note:[/b] Real underline thickness of the string is context-dependent and can be significantly different from the value returned by this function. Use it only as rough estimate.
</description>
</method>
<method name= "has_char" qualifiers= "const" >
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<return type= "bool" />
<argument index= "0" name= "char" type= "int" />
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<description >
Return [code]true[/code] if a Unicode [code]char[/code] is available in the font.
</description>
</method>
<method name= "remove_data" >
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<return type= "void" />
<argument index= "0" name= "idx" type= "int" />
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<description >
Removes the font data source at index [code]idx[/code]. If the index does not exist, nothing happens.
</description>
</method>
<method name= "set_data" >
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<return type= "void" />
<argument index= "0" name= "idx" type= "int" />
<argument index= "1" name= "data" type= "FontData" />
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<description >
Sets the font data source at index [code]idx[/code]. If the index does not exist, nothing happens.
</description>
</method>
<method name= "set_spacing" >
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<return type= "void" />
<argument index= "0" name= "type" type= "int" />
<argument index= "1" name= "value" type= "int" />
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<description >
Sets the spacing for [code]type[/code] (see [enum SpacingType]) to [code]value[/code] in pixels (not relative to the font size).
</description>
</method>
<method name= "update_changes" >
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<return type= "void" />
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<description >
After editing a font (changing data sources, etc.). Call this function to propagate changes to controls that might use it.
</description>
</method>
</methods>
<members >
<member name= "extra_spacing_bottom" type= "int" setter= "set_spacing" getter= "get_spacing" default= "0" >
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Extra spacing at the bottom of the line in pixels.
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</member>
<member name= "extra_spacing_top" type= "int" setter= "set_spacing" getter= "get_spacing" default= "0" >
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Extra spacing at the top of the line in pixels.
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</member>
</members>
<constants >
<constant name= "SPACING_TOP" value= "0" enum= "SpacingType" >
Spacing at the top of the line.
</constant>
<constant name= "SPACING_BOTTOM" value= "1" enum= "SpacingType" >
Spacing at the bottom of the line.
</constant>
</constants>
</class>
