ValidTransform

rsvg::transform

Struct ValidTransform 

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pub struct ValidTransform(Transform);
Expand description

A transform that has been checked to be invertible.

We need to validate user-supplied transforms before setting them on Cairo, so we use this type for that.

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§0: Transform

Methods from Deref<Target = Transform>§

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pub fn pre_transform(&self, t: &Transform) -> Self

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pub fn post_transform(&self, t: &Transform) -> Self

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pub fn pre_translate(&self, x: f64, y: f64) -> Self

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pub fn pre_scale(&self, sx: f64, sy: f64) -> Self

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pub fn pre_rotate(&self, angle: Angle) -> Self

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pub fn post_translate(&self, x: f64, y: f64) -> Self

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pub fn post_scale(&self, sx: f64, sy: f64) -> Self

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pub fn post_rotate(&self, angle: Angle) -> Self

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fn determinant(&self) -> f64

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pub fn is_invertible(&self) -> bool

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pub fn invert(&self) -> Option<Self>

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pub fn transform_distance(&self, dx: f64, dy: f64) -> (f64, f64)

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pub fn transform_point(&self, px: f64, py: f64) -> (f64, f64)

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pub fn transform_rect(&self, rect: &Rect) -> Rect

Trait Implementations§

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impl Clone for ValidTransform

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fn clone(&self) -> ValidTransform

Returns a duplicate 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 ValidTransform

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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 ValidTransform

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fn default() -> ValidTransform

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

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type Target = Transform

The resulting type after dereferencing.
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fn deref(&self) -> &Transform

Dereferences the value.
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impl From<ValidTransform> for Matrix

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fn from(t: ValidTransform) -> Matrix

Converts to this type from the input type.
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impl PartialEq for ValidTransform

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fn eq(&self, other: &ValidTransform) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl TryFrom<Transform> for ValidTransform

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fn try_from(t: Transform) -> Result<ValidTransform, InvalidTransform>

Validates a Transform before converting it to a ValidTransform.

A transform is valid if it is invertible. For example, a matrix with all-zeros is not invertible, and it is invalid.

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type Error = InvalidTransform

The type returned in the event of a conversion error.
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impl Copy for ValidTransform

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impl StructuralPartialEq for ValidTransform

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type Init = T

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