72 lines
1.6 KiB
Rust
72 lines
1.6 KiB
Rust
use std::ops::Range;
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use pathfinder_geometry::{rect::RectF, vector::Vector2F};
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use serde_json::json;
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use crate::{json, AnyElement, Element, SizeConstraint, ViewContext};
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pub struct Clipped<V> {
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child: AnyElement<V>,
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}
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impl<V> Clipped<V> {
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pub fn new(child: AnyElement<V>) -> Self {
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Self { child }
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}
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}
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impl<V: 'static> Element<V> for Clipped<V> {
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type LayoutState = ();
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type PaintState = ();
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fn layout(
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&mut self,
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constraint: SizeConstraint,
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view: &mut V,
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cx: &mut ViewContext<V>,
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) -> (Vector2F, Self::LayoutState) {
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(self.child.layout(constraint, view, cx), ())
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}
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fn paint(
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&mut self,
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bounds: RectF,
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visible_bounds: RectF,
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_: &mut Self::LayoutState,
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view: &mut V,
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cx: &mut ViewContext<V>,
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) -> Self::PaintState {
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cx.scene().push_layer(Some(bounds));
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let state = self.child.paint(bounds.origin(), visible_bounds, view, cx);
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cx.scene().pop_layer();
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state
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}
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fn rect_for_text_range(
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&self,
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range_utf16: Range<usize>,
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_: RectF,
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_: RectF,
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_: &Self::LayoutState,
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_: &Self::PaintState,
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view: &V,
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cx: &ViewContext<V>,
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) -> Option<RectF> {
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self.child.rect_for_text_range(range_utf16, view, cx)
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}
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fn debug(
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&self,
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_: RectF,
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_: &Self::LayoutState,
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_: &Self::PaintState,
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view: &V,
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cx: &ViewContext<V>,
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) -> json::Value {
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json!({
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"type": "Clipped",
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"child": self.child.debug(view, cx)
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})
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}
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}
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