Struct ViewportScrollInput 

pub struct ViewportScrollInput {
    pub delta: CanvasPoint,
    pub anchor_screen: CanvasPoint,
    pub ctrl_key: bool,
    pub target_zoom: f32,
    pub min_zoom: f32,
    pub max_zoom: f32,
}

Normalized wheel or trackpad-scroll input for viewport gesture policy.

Fields

delta: CanvasPoint

Logical screen-pixel scroll delta after adapter/platform normalization.

anchor_screen: CanvasPoint

Logical screen-pixel anchor for zoom gestures.

ctrl_key: bool

Whether the input represents a Ctrl-modified wheel/pinch gesture.

target_zoom: f32

Desired zoom before clamping. Adapters own raw wheel-to-zoom normalization.

min_zoom: f32

Inclusive minimum zoom clamp.

max_zoom: f32

Inclusive maximum zoom clamp.

Implementations

impl ViewportScrollInput

pub fn new( delta: CanvasPoint, anchor_screen: CanvasPoint, ctrl_key: bool, target_zoom: f32, min_zoom: f32, max_zoom: f32, ) -> Self

Trait Implementations

impl Clone for ViewportScrollInput

fn clone(&self) -> ViewportScrollInput

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ViewportScrollInput

impl Debug for ViewportScrollInput

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ViewportScrollInput

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ViewportScrollInput

fn eq(&self, other: &ViewportScrollInput) -> 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 ViewportScrollInput

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ViewportScrollInput