Struct truetype::tables::font_header::FontHeader

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pub struct FontHeader {
Show 18 fields
    pub major_version: u16,
    pub minor_version: u16,
    pub revision: q32,
    pub checksum_adjustment: u32,
    pub magic_number: u32,
    pub flags: Flags,
    pub units_per_em: u16,
    pub created: i64,
    pub modified: i64,
    pub min_x: i16,
    pub min_y: i16,
    pub max_x: i16,
    pub max_y: i16,
    pub macintosh_flags: MacintoshFlags,
    pub lowest_ppem: u16,
    pub direction_hint: i16,
    pub glyph_mapping_format: i16,
    pub glyph_data_format: i16,

}
Expand description

A font header.

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§major_version: u16§minor_version: u16§revision: q32§checksum_adjustment: u32§magic_number: u32§flags: Flags§units_per_em: u16§created: i64§modified: i64§min_x: i16§min_y: i16§max_x: i16§max_y: i16§macintosh_flags: MacintoshFlags§lowest_ppem: u16§direction_hint: i16§glyph_mapping_format: i16§glyph_data_format: i16

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impl FontHeader

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pub const CHECKSUM_ADJUSTMENT: u32 = 2_981_146_554u32

The magic number for computing the checksum adjustment.

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pub fn checksum<T: Read>(tape: &mut T) -> Result<u32>

Compute the checksum.

Trait Implementations§

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impl Clone for FontHeader

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fn clone(&self) -> FontHeader

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for FontHeader

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for FontHeader

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fn default() -> FontHeader

Returns the “default value” for a type. Read more
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impl Read for FontHeader

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fn read<T: Read>(tape: &mut T) -> Result<Self>

Read a value.
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impl Write for FontHeader

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fn write<T: Write>(&self, tape: &mut T) -> Result<()>

Write the value.
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impl Copy for FontHeader

Auto Trait Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.