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Relativize child layouts to their parent origin

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This commit is contained in:
Nathan Sobo 2023-08-25 23:22:53 -06:00
parent 3bebfbcd50
commit 5bb780073e
4 changed files with 10 additions and 8 deletions
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2
crates/gpui/playground/src/adapter.rs
View file

@ -47,7 +47,7 @@ impl<V: 'static> gpui::Element<V> for AdapterElement<V> {
let (layout_engine, layout_id) = layout_data.take().unwrap();
legacy_cx.push_layout_engine(layout_engine);
let mut cx = PaintContext::new(legacy_cx, scene);
self.0.paint(view, &mut cx);
self.0.paint(view, bounds.origin(), &mut cx);
*layout_data = legacy_cx.pop_layout_engine().zip(Some(layout_id));
debug_assert!(layout_data.is_some());
}

2
crates/gpui/playground/src/div.rs
View file

@ -72,7 +72,7 @@ impl<V: 'static> Element<V> for Div<V> {
self.interaction_handlers()
.paint(layout.order, layout.bounds, cx);
for child in &mut self.children {
child.paint(view, cx);
child.paint(view, layout.bounds.origin(), cx);
}
if pop_text_style {
cx.pop_text_style();

12
crates/gpui/playground/src/element.rs
View file

@ -1,6 +1,7 @@
pub use crate::layout_context::LayoutContext;
pub use crate::paint_context::PaintContext;
use anyhow::Result;
use gpui::geometry::vector::Vector2F;
pub use gpui::{Layout, LayoutId};
use smallvec::SmallVec;
@ -38,7 +39,7 @@ pub trait Element<V: 'static>: 'static {
/// Used to make ElementState<V, E> into a trait object, so we can wrap it in AnyElement<V>.
trait AnyStatefulElement<V> {
fn layout(&mut self, view: &mut V, cx: &mut LayoutContext<V>) -> Result<LayoutId>;
fn paint(&mut self, view: &mut V, cx: &mut PaintContext<V>);
fn paint(&mut self, view: &mut V, parent_origin: Vector2F, cx: &mut PaintContext<V>);
}
/// A wrapper around an element that stores its layout state.
@ -91,13 +92,14 @@ impl<V, E: Element<V>> AnyStatefulElement<V> for StatefulElement<V, E> {
result
}
fn paint(&mut self, view: &mut V, cx: &mut PaintContext<V>) {
fn paint(&mut self, view: &mut V, parent_origin: Vector2F, cx: &mut PaintContext<V>) {
self.phase = match std::mem::take(&mut self.phase) {
ElementPhase::PostLayout {
layout_id,
mut paint_state,
} => match cx.computed_layout(layout_id) {
Ok(layout) => {
Ok(mut layout) => {
layout.bounds = layout.bounds + parent_origin;
self.element.paint(view, &layout, &mut paint_state, cx);
ElementPhase::PostPaint {
layout,
@ -120,8 +122,8 @@ impl<V> AnyElement<V> {
self.0.layout(view, cx)
}
pub fn paint(&mut self, view: &mut V, cx: &mut PaintContext<V>) {
self.0.paint(view, cx)
pub fn paint(&mut self, view: &mut V, parent_origin: Vector2F, cx: &mut PaintContext<V>) {
self.0.paint(view, parent_origin, cx)
}
}

2
crates/gpui/playground_macros/src/derive_element.rs
View file

@ -81,7 +81,7 @@ pub fn derive_element(input: TokenStream) -> TokenStream {
rendered_element: &mut Self::PaintState,
cx: &mut playground::element::PaintContext<V>,
) {
rendered_element.paint(view, cx);
rendered_element.paint(view, layout.bounds.origin(), cx);
}
}