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Use on_after_layout
to cap the rendered sidebar item's width
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parent
1b8ea08377
commit
0ae70b62cb
2 changed files with 13 additions and 12 deletions
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@ -7,22 +7,22 @@ use crate::{
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pub struct Hooks {
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child: ElementBox,
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before_layout: Option<Box<dyn FnMut(SizeConstraint, &mut LayoutContext)>>,
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after_layout: Option<Box<dyn FnMut(Vector2F, &mut LayoutContext)>>,
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}
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impl Hooks {
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pub fn new(child: ElementBox) -> Self {
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Self {
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child,
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before_layout: None,
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after_layout: None,
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}
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}
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pub fn on_before_layout(
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pub fn on_after_layout(
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mut self,
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f: impl 'static + FnMut(SizeConstraint, &mut LayoutContext),
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f: impl 'static + FnMut(Vector2F, &mut LayoutContext),
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) -> Self {
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self.before_layout = Some(Box::new(f));
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self.after_layout = Some(Box::new(f));
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self
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}
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}
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@ -36,10 +36,10 @@ impl Element for Hooks {
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constraint: SizeConstraint,
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cx: &mut LayoutContext,
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) -> (Vector2F, Self::LayoutState) {
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if let Some(handler) = self.before_layout.as_mut() {
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handler(constraint, cx);
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}
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let size = self.child.layout(constraint, cx);
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if let Some(handler) = self.after_layout.as_mut() {
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handler(size, cx);
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}
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(size, ())
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}
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@ -113,7 +113,6 @@ impl Sidebar {
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container.add_child(self.render_resize_handle(settings, cx));
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}
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let width = self.width.clone();
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container.add_child(
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Flexible::new(
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1.,
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@ -122,9 +121,11 @@ impl Sidebar {
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.with_max_width(*self.width.borrow())
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.boxed(),
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)
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.on_before_layout(move |constraint, _| {
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let mut width = width.borrow_mut();
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*width = width.min(constraint.max.x());
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.on_after_layout({
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let width = self.width.clone();
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move |size, _| {
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*width.borrow_mut() = size.x();
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}
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})
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.boxed(),
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)
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