Enum Rotation

pub enum Rotation {
    North,
    East,
    South,
    West,
}

Represents the four different possibilities of rotation.

Variants

North

A rotation of 0° (ie. no rotation). This is the default value.

   North
+---------+
|    ^    |
|         |
|         |
+---------+
     0°

East

A rotation of 90° clockwise.

   East
+---------+
|         |
|        >|
|         |
+---------+
    90°

South

A rotation of 180°.

   South
+---------+
|         |
|         |
|    v    |
+---------+
    180°

West

A rotation of 270° clockwise.

    West
+---------+
|         |
|<        |
|         |
+---------+
    270°

Implementations

impl Rotation

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

Returns whether the aspect ratio of the provided Rect changes with the given rotation.

pub fn next_anchor(&self, rect: &Rect) -> (i32, i32)

Returns the (x, y) coordinate of the point which will be the Rect’s anchor after it is rotated.

Explanation

The anchor point of a Rect is usually the top-left (x,y). When a Rect is rotated inside a layout, then another corner of the Rect will become the new anchor point after the rotation. This method returns the current position of that corner.

pub fn clockwise(&self) -> Self

Get the next rotation variant when rotating clockwise

pub fn counter_clockwise(&self) -> Self

Get the next rotation variant when rotating counter clockwise

Trait Implementations

impl Clone for Rotation

fn clone(&self) -> Rotation

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Rotation

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

Formats the value using the given formatter.

impl Default for Rotation

fn default() -> Rotation

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Rotation

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Rotation

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Rotation

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Rotation

impl Eq for Rotation

impl StructuralPartialEq for Rotation