pub struct CompositeGlyphFlag { /* private fields */ }
Implementations
sourceimpl CompositeGlyphFlag
impl CompositeGlyphFlag
sourcepub const ARG_1_AND_2_ARE_WORDS: Self = Self{bits: 1,}
pub const ARG_1_AND_2_ARE_WORDS: Self = Self{bits: 1,}
Bit 0: If this is set, the arguments are 16-bit (uint16 or int16); otherwise, they are bytes (uint8 or int8).
sourcepub const ARGS_ARE_XY_VALUES: Self = Self{bits: 2,}
pub const ARGS_ARE_XY_VALUES: Self = Self{bits: 2,}
Bit 1: If this is set, the arguments are signed xy values; otherwise, they are unsigned point numbers.
sourcepub const ROUND_XY_TO_GRID: Self = Self{bits: 4,}
pub const ROUND_XY_TO_GRID: Self = Self{bits: 4,}
Bit 2: For the xy values if the preceding is true.
sourcepub const WE_HAVE_A_SCALE: Self = Self{bits: 8,}
pub const WE_HAVE_A_SCALE: Self = Self{bits: 8,}
Bit 3: This indicates that there is a simple scale for the component. Otherwise, scale = 1.0.
sourcepub const MORE_COMPONENTS: Self = Self{bits: 32,}
pub const MORE_COMPONENTS: Self = Self{bits: 32,}
Bit 4: Reserved, set to 0 Bit 5: Indicates at least one more glyph after this one.
sourcepub const WE_HAVE_AN_X_AND_Y_SCALE: Self = Self{bits: 64,}
pub const WE_HAVE_AN_X_AND_Y_SCALE: Self = Self{bits: 64,}
Bit 6: The x direction will use a different scale from the y direction.
sourcepub const WE_HAVE_A_TWO_BY_TWO: Self = Self{bits: 128,}
pub const WE_HAVE_A_TWO_BY_TWO: Self = Self{bits: 128,}
Bit 7: There is a 2 by 2 transformation that will be used to scale the component.
sourcepub const WE_HAVE_INSTRUCTIONS: Self = Self{bits: 256,}
pub const WE_HAVE_INSTRUCTIONS: Self = Self{bits: 256,}
Bit 8: Following the last component are instructions for the composite character.
sourcepub const USE_MY_METRICS: Self = Self{bits: 512,}
pub const USE_MY_METRICS: Self = Self{bits: 512,}
Bit 9: If set, this forces the aw and lsb (and rsb) for the composite to be equal to those from this original glyph. This works for hinted and unhinted characters.
sourcepub const OVERLAP_COMPOUND: Self = Self{bits: 1024,}
pub const OVERLAP_COMPOUND: Self = Self{bits: 1024,}
Bit 10: If set, the components of the compound glyph overlap.
Use of this flag is not required in OpenType — that is, it is valid to have components overlap without having this flag set. It may affect behaviors in some platforms, however. (See Apple’s specification for details regarding behavior in Apple platforms.) When used, it must be set on the flag word for the first component. See additional remarks, above, for the similar OVERLAP_SIMPLE flag used in simple-glyph descriptions.
sourcepub const SCALED_COMPONENT_OFFSET: Self = Self{bits: 2048,}
pub const SCALED_COMPONENT_OFFSET: Self = Self{bits: 2048,}
Bit 11: The composite is designed to have the component offset scaled.
sourcepub const UNSCALED_COMPONENT_OFFSET: Self = Self{bits: 4096,}
pub const UNSCALED_COMPONENT_OFFSET: Self = Self{bits: 4096,}
Bit 12: The composite is designed not to have the component offset scaled.
sourcepub const fn from_bits(bits: u16) -> Option<Self>
pub const fn from_bits(bits: u16) -> Option<Self>
Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.
sourcepub const fn from_bits_truncate(bits: u16) -> Self
pub const fn from_bits_truncate(bits: u16) -> Self
Convert from underlying bit representation, dropping any bits that do not correspond to flags.
sourcepub const unsafe fn from_bits_unchecked(bits: u16) -> Self
pub const unsafe fn from_bits_unchecked(bits: u16) -> Self
Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).
Safety
The caller of the bitflags!
macro can chose to allow or
disallow extra bits for their bitflags type.
The caller of from_bits_unchecked()
has to ensure that
all bits correspond to a defined flag or that extra bits
are valid for this bitflags type.
sourcepub const fn intersects(&self, other: Self) -> bool
pub const fn intersects(&self, other: Self) -> bool
Returns true
if there are flags common to both self
and other
.
sourcepub const fn contains(&self, other: Self) -> bool
pub const fn contains(&self, other: Self) -> bool
Returns true
if all of the flags in other
are contained within self
.
sourcepub fn set(&mut self, other: Self, value: bool)
pub fn set(&mut self, other: Self, value: bool)
Inserts or removes the specified flags depending on the passed value.
sourcepub const fn intersection(self, other: Self) -> Self
pub const fn intersection(self, other: Self) -> Self
Returns the intersection between the flags in self
and
other
.
Specifically, the returned set contains only the flags which are
present in both self
and other
.
This is equivalent to using the &
operator (e.g.
ops::BitAnd
), as in flags & other
.
sourcepub const fn union(self, other: Self) -> Self
pub const fn union(self, other: Self) -> Self
Returns the union of between the flags in self
and other
.
Specifically, the returned set contains all flags which are
present in either self
or other
, including any which are
present in both (see Self::symmetric_difference
if that
is undesirable).
This is equivalent to using the |
operator (e.g.
ops::BitOr
), as in flags | other
.
sourcepub const fn difference(self, other: Self) -> Self
pub const fn difference(self, other: Self) -> Self
Returns the difference between the flags in self
and other
.
Specifically, the returned set contains all flags present in
self
, except for the ones present in other
.
It is also conceptually equivalent to the “bit-clear” operation:
flags & !other
(and this syntax is also supported).
This is equivalent to using the -
operator (e.g.
ops::Sub
), as in flags - other
.
sourcepub const fn symmetric_difference(self, other: Self) -> Self
pub const fn symmetric_difference(self, other: Self) -> Self
Returns the symmetric difference between the flags
in self
and other
.
Specifically, the returned set contains the flags present which
are present in self
or other
, but that are not present in
both. Equivalently, it contains the flags present in exactly
one of the sets self
and other
.
This is equivalent to using the ^
operator (e.g.
ops::BitXor
), as in flags ^ other
.
sourcepub const fn complement(self) -> Self
pub const fn complement(self) -> Self
Returns the complement of this set of flags.
Specifically, the returned set contains all the flags which are
not set in self
, but which are allowed for this type.
Alternatively, it can be thought of as the set difference
between Self::all()
and self
(e.g. Self::all() - self
)
This is equivalent to using the !
operator (e.g.
ops::Not
), as in !flags
.
sourceimpl CompositeGlyphFlag
impl CompositeGlyphFlag
pub fn arg_1_and_2_are_words(self) -> bool
pub fn args_are_xy_values(self) -> bool
pub fn we_have_a_scale(self) -> bool
pub fn we_have_an_x_and_y_scale(self) -> bool
pub fn we_have_a_two_by_two(self) -> bool
pub fn more_components(self) -> bool
pub fn we_have_instructions(self) -> bool
Trait Implementations
sourceimpl Binary for CompositeGlyphFlag
impl Binary for CompositeGlyphFlag
sourceimpl BitAnd<CompositeGlyphFlag> for CompositeGlyphFlag
impl BitAnd<CompositeGlyphFlag> for CompositeGlyphFlag
type Output = CompositeGlyphFlag
type Output = CompositeGlyphFlag
The resulting type after applying the &
operator.
sourceimpl BitAndAssign<CompositeGlyphFlag> for CompositeGlyphFlag
impl BitAndAssign<CompositeGlyphFlag> for CompositeGlyphFlag
sourcefn bitand_assign(&mut self, other: Self)
fn bitand_assign(&mut self, other: Self)
Disables all flags disabled in the set.
sourceimpl BitOr<CompositeGlyphFlag> for CompositeGlyphFlag
impl BitOr<CompositeGlyphFlag> for CompositeGlyphFlag
sourcefn bitor(self, other: CompositeGlyphFlag) -> Self
fn bitor(self, other: CompositeGlyphFlag) -> Self
Returns the union of the two sets of flags.
type Output = CompositeGlyphFlag
type Output = CompositeGlyphFlag
The resulting type after applying the |
operator.
sourceimpl BitOrAssign<CompositeGlyphFlag> for CompositeGlyphFlag
impl BitOrAssign<CompositeGlyphFlag> for CompositeGlyphFlag
sourcefn bitor_assign(&mut self, other: Self)
fn bitor_assign(&mut self, other: Self)
Adds the set of flags.
sourceimpl BitXor<CompositeGlyphFlag> for CompositeGlyphFlag
impl BitXor<CompositeGlyphFlag> for CompositeGlyphFlag
sourcefn bitxor(self, other: Self) -> Self
fn bitxor(self, other: Self) -> Self
Returns the left flags, but with all the right flags toggled.
type Output = CompositeGlyphFlag
type Output = CompositeGlyphFlag
The resulting type after applying the ^
operator.
sourceimpl BitXorAssign<CompositeGlyphFlag> for CompositeGlyphFlag
impl BitXorAssign<CompositeGlyphFlag> for CompositeGlyphFlag
sourcefn bitxor_assign(&mut self, other: Self)
fn bitxor_assign(&mut self, other: Self)
Toggles the set of flags.
sourceimpl Clone for CompositeGlyphFlag
impl Clone for CompositeGlyphFlag
sourcefn clone(&self) -> CompositeGlyphFlag
fn clone(&self) -> CompositeGlyphFlag
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl Debug for CompositeGlyphFlag
impl Debug for CompositeGlyphFlag
sourceimpl Extend<CompositeGlyphFlag> for CompositeGlyphFlag
impl Extend<CompositeGlyphFlag> for CompositeGlyphFlag
sourcefn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)
fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)
Extends a collection with the contents of an iterator. Read more
sourcefn extend_one(&mut self, item: A)
fn extend_one(&mut self, item: A)
extend_one
)Extends a collection with exactly one element.
sourcefn extend_reserve(&mut self, additional: usize)
fn extend_reserve(&mut self, additional: usize)
extend_one
)Reserves capacity in a collection for the given number of additional elements. Read more
sourceimpl FromIterator<CompositeGlyphFlag> for CompositeGlyphFlag
impl FromIterator<CompositeGlyphFlag> for CompositeGlyphFlag
sourcefn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self
fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self
Creates a value from an iterator. Read more
sourceimpl Hash for CompositeGlyphFlag
impl Hash for CompositeGlyphFlag
sourceimpl LowerHex for CompositeGlyphFlag
impl LowerHex for CompositeGlyphFlag
sourceimpl Not for CompositeGlyphFlag
impl Not for CompositeGlyphFlag
type Output = CompositeGlyphFlag
type Output = CompositeGlyphFlag
The resulting type after applying the !
operator.
sourceimpl Octal for CompositeGlyphFlag
impl Octal for CompositeGlyphFlag
sourceimpl Ord for CompositeGlyphFlag
impl Ord for CompositeGlyphFlag
sourceimpl PartialEq<CompositeGlyphFlag> for CompositeGlyphFlag
impl PartialEq<CompositeGlyphFlag> for CompositeGlyphFlag
sourcefn eq(&self, other: &CompositeGlyphFlag) -> bool
fn eq(&self, other: &CompositeGlyphFlag) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
sourcefn ne(&self, other: &CompositeGlyphFlag) -> bool
fn ne(&self, other: &CompositeGlyphFlag) -> bool
This method tests for !=
.
sourceimpl PartialOrd<CompositeGlyphFlag> for CompositeGlyphFlag
impl PartialOrd<CompositeGlyphFlag> for CompositeGlyphFlag
sourcefn partial_cmp(&self, other: &CompositeGlyphFlag) -> Option<Ordering>
fn partial_cmp(&self, other: &CompositeGlyphFlag) -> Option<Ordering>
This method returns an ordering between self
and other
values if one exists. Read more
1.0.0 · sourcefn lt(&self, other: &Rhs) -> bool
fn lt(&self, other: &Rhs) -> bool
This method tests less than (for self
and other
) and is used by the <
operator. Read more
1.0.0 · sourcefn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
sourceimpl<'a> ReadFrom<'a> for CompositeGlyphFlag
impl<'a> ReadFrom<'a> for CompositeGlyphFlag
sourceimpl Sub<CompositeGlyphFlag> for CompositeGlyphFlag
impl Sub<CompositeGlyphFlag> for CompositeGlyphFlag
type Output = CompositeGlyphFlag
type Output = CompositeGlyphFlag
The resulting type after applying the -
operator.
sourceimpl SubAssign<CompositeGlyphFlag> for CompositeGlyphFlag
impl SubAssign<CompositeGlyphFlag> for CompositeGlyphFlag
sourcefn sub_assign(&mut self, other: Self)
fn sub_assign(&mut self, other: Self)
Disables all flags enabled in the set.
sourceimpl UpperHex for CompositeGlyphFlag
impl UpperHex for CompositeGlyphFlag
impl Copy for CompositeGlyphFlag
impl Eq for CompositeGlyphFlag
impl StructuralEq for CompositeGlyphFlag
impl StructuralPartialEq for CompositeGlyphFlag
Auto Trait Implementations
impl RefUnwindSafe for CompositeGlyphFlag
impl Send for CompositeGlyphFlag
impl Sync for CompositeGlyphFlag
impl Unpin for CompositeGlyphFlag
impl UnwindSafe for CompositeGlyphFlag
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<'a, T> ReadBinary<'a> for T where
T: ReadUnchecked<'a>,
impl<'a, T> ReadBinary<'a> for T where
T: ReadUnchecked<'a>,
type HostType = <T as ReadUnchecked<'a>>::HostType
fn read(
ctxt: &mut ReadCtxt<'a>
) -> Result<<T as ReadBinary<'a>>::HostType, ParseError>
sourceimpl<'a, T> ReadBinaryDep<'a> for T where
T: ReadBinary<'a>,
impl<'a, T> ReadBinaryDep<'a> for T where
T: ReadBinary<'a>,
type Args = ()
type HostType = <T as ReadBinary<'a>>::HostType
fn read_dep(
ctxt: &mut ReadCtxt<'a>,
<T as ReadBinaryDep<'a>>::Args
) -> Result<<T as ReadBinaryDep<'a>>::HostType, ParseError>
sourceimpl<'a, T> ReadFixedSizeDep<'a> for T where
T: ReadUnchecked<'a>,
impl<'a, T> ReadFixedSizeDep<'a> for T where
T: ReadUnchecked<'a>,
sourceimpl<'a, T> ReadUnchecked<'a> for T where
T: ReadFrom<'a>,
impl<'a, T> ReadUnchecked<'a> for T where
T: ReadFrom<'a>,
type HostType = T
sourceunsafe fn read_unchecked(
ctxt: &mut ReadCtxt<'a>
) -> <T as ReadUnchecked<'a>>::HostType
unsafe fn read_unchecked(
ctxt: &mut ReadCtxt<'a>
) -> <T as ReadUnchecked<'a>>::HostType
Must read exactly SIZE
bytes.
Unsafe as it avoids prohibitively expensive per-byte bounds checking. Read more