Struct ScrollTreeNodeTransformationCache

pub struct ScrollTreeNodeTransformationCache {
    node_to_root_transform: FastLayoutTransform,
    root_to_node_transform: Option<FastLayoutTransform>,
}

A cached of transforms of a particular ScrollTree node in both directions: mapping from node-relative points to root-relative points and vice-versa.

Potential ideas for improvement:

• Test optimizing simple translations to avoid having to do full matrix multiplication when transforms are not involved.

Fields

node_to_root_transform: FastLayoutTransform

root_to_node_transform: Option<FastLayoutTransform>

Trait Implementations

impl Clone for ScrollTreeNodeTransformationCache

fn clone(&self) -> ScrollTreeNodeTransformationCache

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScrollTreeNodeTransformationCache

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

Formats the value using the given formatter.

impl Default for ScrollTreeNodeTransformationCache

fn default() -> ScrollTreeNodeTransformationCache

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ScrollTreeNodeTransformationCache

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl MallocSizeOf for ScrollTreeNodeTransformationCache

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl Serialize for ScrollTreeNodeTransformationCache

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 ScrollTreeNodeTransformationCache