efl/src/lib/efl/interfaces/efl_text_font_properties.eo

import efl_gfx_types;
enum Efl.Text_Font_Weight {
   [[The weight of a particular font is the thickness of the character outlines relative to their height.
     The given numerical values follow the TrueType scale (from 100 to 900) and are approximate.
     It is up to each font to provide all of them.
     @since 1.24
     ]]
   normal,     [[Normal font weight (400).]]
   thin,       [[Thin font weight (100).]]
   ultralight, [[Ultralight font weight (200).]]
   extralight, [[Extralight font weight (200).]]
   light,      [[Light font weight (300).]]
   book,       [[Book font weight (350).]]
   medium,     [[Medium font weight (500).]]
   semibold,   [[Semibold font weight (600).]]
   bold,       [[Bold font weight (700).]]
   ultrabold,  [[Ultrabold font weight (800).]]
   extrabold,  [[Extrabold font weight (800).]]
   black,      [[Black font weight (900).]]
   extrablack, [[Extrablack font weight (950).]]
}

enum Efl.Text_Font_Width {
   [[Font width relative to its height.
     It is up to each font to provide all these widths.
     @since 1.24
   ]]
   normal,         [[Normal font width.]]
   ultracondensed, [[Ultracondensed font width.]]
   extracondensed, [[Extracondensed font width.]]
   condensed,      [[Condensed font width.]]
   semicondensed,  [[Semicondensed font width.]]
   semiexpanded,   [[Semiexpanded font width.]]
   expanded,       [[Expanded font width.]]
   extraexpanded,  [[Extraexpanded font width.]]
   ultraexpanded,  [[Ultraexpanded font width.]]
}

enum Efl.Text_Font_Slant {
    [[Type of font slant.
     @since 1.24
    ]]
    normal,  [[Normal font slant: Sets the text to the normal font (non-italicized).]]
    oblique, [[Oblique font slant: Sets the text to use a simulated version of an italic font,
               created by algorithmically slanting the normal version.]]
    italic,  [[Italic font slant: Sets the text to use the italic version of the font if available.
               If not available, it will simulate italics with oblique instead.]]
}

enum Efl.Text_Font_Bitmap_Scalable {
   [[When are bitmap fonts allowed to be scaled.
     @since 1.24
   ]]
   none = 0,         [[Disable scaling for bitmap fonts.]]
   color = (1 << 0), [[Enable scaling for color bitmap fonts.]]
}

interface Efl.Text_Font_Properties {
   [[Properties related to font handling.
     @since 1.24
   ]]
   c_prefix: efl_text;
   methods {
      @property font_family {
         [[The font family, filename for a given text object.

           This property controls the font name of a text object.
           The font string has to follow fontconfig's convention for
           naming fonts, as it's the underlying library used to query system
           fonts by EFL (see the $[fc-list] command's output, on your system,
           to get an idea). Alternatively, you can use the full path to a font
           file.

           When reading it, the font name string is still owned by
           EFL and should not be freed.
           See also @.font_source.
         ]]
         set {
         }
         get {
         }
         values {
            font: string; [[The font family name or filename.]]
         }
      }

      @property font_size {
         [[The font size to use, in points.

           If the specified @.font_family does not provide this particular size, it will be scaled.
         ]]
         set {}
         get {}
         values {
            size: Efl.Font.Size; [[The font size, in points.]]
         }
      }

      @property font_source {
         [[The font (source) file to be used on a given text object.

           This function allows the font file to be explicitly set for a
           given text object, overriding system lookup, which will first
           occur in the given file's contents.

           See also @.font_family.
         ]]
         set {
         }
         get {
         }
         values {
            font_source: string; [[The font file's path.]]
         }
      }

      @property font_fallbacks {
         [[Comma-separated list of font fallbacks.

           Will be used in case the primary font isn't available.
         ]]
         values {
            font_fallbacks: string; [[List of fallback font names.]]
         }
      }

      @property font_weight {
         [[Type of weight (e.g. bold or normal) of the displayed font

           Default is @Efl.Text_Font_Weight.normal.
         ]]
         values {
            font_weight: Efl.Text_Font_Weight; [[Font weight.]]
         }
      }

      @property font_slant {
         [[Type of slant (e.g. italic or normal) of the displayed font.

           Default is @Efl.Text_Font_Slant.normal.
         ]]
         values {
            style: Efl.Text_Font_Slant; [[Font slant.]]
         }
      }

      @property font_width {
         [[Type of width (e.g. condensed, expanded or normal) of the displayed font.

           Default is @Efl.Text_Font_Width.normal.
         ]]
         values {
            width: Efl.Text_Font_Width; [[Font width.]]
         }
      }

      @property font_lang {
         [[Specific language of the displayed font

           This is used to lookup fonts suitable to the specified language, as
           well as helping the font shaper backend.
           The language $lang can be either a code e.g "en_US",
           "auto" to use the system locale, or "none".
         ]]
         values {
            lang: string; [[Language code.]]
         }
      }

      @property font_bitmap_scalable {
           [[Bitmap fonts have fixed size glyphs for several available sizes.
             Other sizes need to be algorithmically scaled, resulting in blurry glyphs.
             This property controls whether scaling of non-provided sizes is allowed.

             Default is @Efl.Text_Font_Bitmap_Scalable.none.
           ]]
           values {
              scalable: Efl.Text_Font_Bitmap_Scalable; [[When should bitmap fonts be scaled.]]
           }
      }
   }
}