Struct CurveTransformCell 

pub struct CurveTransformCell(/* private fields */);

Implementations

impl CurveTransformCell

pub fn position( &self, ) -> Matrix<f32, Const<2>, Const<1>, ArrayStorage<f32, 2, 1>>

Position of the center of the curve editor in the curve coordinate space.

pub fn scale(&self) -> Matrix<f32, Const<2>, Const<1>, ArrayStorage<f32, 2, 1>>

Scape of the curve editor: multiply curve space units by this to get screen space units.

pub fn bounds(&self) -> Rect<f32>

Location of the curve editor on the screen, in screen space units.

pub fn set_position( &self, position: Matrix<f32, Const<2>, Const<1>, ArrayStorage<f32, 2, 1>>, )

Modify the current position. Call this when the center of the curve view should change.

pub fn set_scale( &self, scale: Matrix<f32, Const<2>, Const<1>, ArrayStorage<f32, 2, 1>>, )

Modify the current zoom of the curve view.

pub fn set_bounds(&self, bounds: Rect<f32>)

Update the bounds of the curve view. Call this to ensure the CurveTransform accurately reflects the actual size of the widget being drawn.

pub fn x_step_iter(&self, grid_size: f32) -> StepIterator

Just like CurveTransformCell::y_step_iter but for x-coordinates. Iterate through a list of x-coordinates across the width of the bounds. The x-coordinates are in curve-space, but their distance apart should be at least grid_size in screen-space.

This iterator indates where grid lines should be drawn to make a curve easier to read for the user.

pub fn y_step_iter(&self, grid_size: f32) -> StepIterator

Just like CurveTransformCell::x_step_iter but for y-coordinates. Iterate through a list of y-coordinates across the width of the bounds. The y-coordinates are in curve-space, but their distance apart should be at least grid_size in screen-space.

This iterator indates where grid lines should be drawn to make a curve easier to read for the user.

pub fn update_transform(&self)

Construct the transformation matrices to reflect the current position, scale, and bounds.

pub fn curve_to_local( &self, ) -> MappedMutexGuard<'_, RawMutex, Matrix<f32, Const<3>, Const<3>, ArrayStorage<f32, 3, 3>>>

Transform a point on the curve into a point in the local coordinate space of the widget.

pub fn curve_to_screen( &self, ) -> MappedMutexGuard<'_, RawMutex, Matrix<f32, Const<3>, Const<3>, ArrayStorage<f32, 3, 3>>>

Transform a point on the curve into a point on the screen.

pub fn local_to_curve( &self, ) -> MappedMutexGuard<'_, RawMutex, Matrix<f32, Const<3>, Const<3>, ArrayStorage<f32, 3, 3>>>

Transform a point in the local coordinate space of the widget into a point in the coordinate space of the curve. After the transformation, the x-coordinate could be a key location and the y-coordinate could be a key value. Y-coordinates are flipped so that positive-y becomes the up direction.

pub fn screen_to_curve( &self, ) -> MappedMutexGuard<'_, RawMutex, Matrix<f32, Const<3>, Const<3>, ArrayStorage<f32, 3, 3>>>

Transform a point on the screen into a point in the coordinate space of the curve. After the transformation, the x-coordinate could be a key location and the y-coordinate could be a key value. Y-coordinates are flipped so that positive-y becomes the up direction.

Trait Implementations

impl Clone for CurveTransformCell

fn clone(&self) -> CurveTransformCell

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CurveTransformCell

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

Formats the value using the given formatter.

impl Default for CurveTransformCell

fn default() -> CurveTransformCell

Returns the “default value” for a type.