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2816a09911
We need to simplify all the optimized items before the move_declaration pass This include innter item of repeater that might be used by layouts But that also means we can now uptimize children of layouts
55 lines
1.8 KiB
Rust
55 lines
1.8 KiB
Rust
// Copyright © SixtyFPS GmbH <info@sixtyfps.io>
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// SPDX-License-Identifier: (GPL-3.0-only OR LicenseRef-SixtyFPS-commercial)
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//! Remove the rectangles that serves no purposes
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//!
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//! Rectangles which do not draw anything and have no x or y don't need to be in
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//! the item tree, we can just remove them.
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use crate::{langtype::Type, object_tree::*};
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use std::rc::Rc;
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pub fn optimize_useless_rectangles(root_component: &Rc<Component>) {
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recurse_elem_including_sub_components(root_component, &(), &mut |parent, _| {
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let mut parent = parent.borrow_mut();
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let children = std::mem::take(&mut parent.children);
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for elem in children {
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if !can_optimize(&elem) {
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parent.children.push(elem);
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continue;
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}
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parent.children.extend(std::mem::take(&mut elem.borrow_mut().children));
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parent
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.enclosing_component
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.upgrade()
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.unwrap()
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.optimized_elements
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.borrow_mut()
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.push(elem);
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}
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});
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}
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/// Check that this is a element we can optimize
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fn can_optimize(elem: &ElementRc) -> bool {
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let e = elem.borrow();
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if e.is_flickable_viewport {
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return false;
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};
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let base_type = match &e.base_type {
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Type::Builtin(base_type) if base_type.name == "Rectangle" => base_type,
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_ => return false,
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};
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// Check that no Rectangle property other than height and width are set
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let analysis = e.property_analysis.borrow();
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!e.bindings.keys().chain(analysis.iter().filter(|(_, v)| v.is_set).map(|(k, _)| k)).any(|k| {
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!matches!(k.as_str(), "height" | "width")
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&& !e.property_declarations.contains_key(k.as_str())
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&& base_type.properties.contains_key(k.as_str())
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})
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}
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