Struct PaintCx 

pub struct PaintCx<'a> {
    pub window_state: &'a mut WindowState,
    pub target_id: ElementId,
    pub world_transform: Affine,
    pub layout_rect_local: Rect,
    pub clip: Option<RoundedRect>,
    pub font_size_cx: FontSizeCx,
    /* private fields */
}

Per-target paint context - created for each visual node Similar to EventCx in event dispatch

Fields

window_state: &'a mut WindowState

Reference to global paint state

target_id: ElementId

The target visual node being painted (CRITICAL for views with multiple visuals)

world_transform: Affine

World transform for this visual node (from box tree)

layout_rect_local: Rect

Local layout bounds for this visual node (from box tree)

clip: Option<RoundedRect>

Optional clip for this visual node (from box tree)

font_size_cx: FontSizeCx

Implementations

impl PaintCx<'_>

pub fn is_drag_paint(&self, id: impl Into<ElementId>) -> bool

Allows a View to determine if it is being called in order to paint a draggable image of itself during a drag (likely draggable() was called on the View or ViewId) as opposed to a normal paint in order to alter the way it renders itself.

pub fn clip(&mut self, shape: &impl Shape)

Clip the drawing area (delegates to helper methods)

pub fn clear_clip(&mut self)

Clear clip

Methods from Deref<Target = Renderer>

pub fn resize(&mut self, scale: f64, size: Size)

pub fn set_scale(&mut self, scale: f64)

pub fn size(&self) -> Size

Trait Implementations

impl Deref for PaintCx<'_>

type Target = Renderer

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for PaintCx<'_>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.