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https://github.com/slint-ui/slint.git
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1f091cb1c0
Add support for built-in property aliases and rename `color` to `background` - in preparation for it also changing to type brush. Right now the alias is silent, a deprecation and overall change will come in a subsequent change.
74 lines
2.9 KiB
Rust
74 lines
2.9 KiB
Rust
/* LICENSE BEGIN
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This file is part of the SixtyFPS Project -- https://sixtyfps.io
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Copyright (c) 2020 Olivier Goffart <olivier.goffart@sixtyfps.io>
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Copyright (c) 2020 Simon Hausmann <simon.hausmann@sixtyfps.io>
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SPDX-License-Identifier: GPL-3.0-only
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This file is also available under commercial licensing terms.
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Please contact info@sixtyfps.io for more information.
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LICENSE END */
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//! Set the width and height of Rectangle, TouchArea, ... to 100%.
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use std::rc::Rc;
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use crate::langtype::DefaultSizeBinding;
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use crate::langtype::Type;
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use crate::object_tree::{Component, ElementRc};
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use crate::{
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expression_tree::{BuiltinFunction, Expression, NamedReference},
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langtype::PropertyLookupResult,
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};
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pub fn default_geometry(root_component: &Rc<Component>) {
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crate::object_tree::recurse_elem_including_sub_components(
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&root_component,
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&None,
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&mut |elem: &ElementRc, parent: &Option<ElementRc>| {
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let base_type = elem.borrow().base_type.clone();
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if let (Some(parent), Type::Builtin(builtin_type)) = (parent, base_type) {
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match builtin_type.default_size_binding {
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DefaultSizeBinding::None => {}
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DefaultSizeBinding::ExpandsToParentGeometry => {
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if !elem.borrow().child_of_layout {
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make_default_100(elem, parent, "width");
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make_default_100(elem, parent, "height");
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}
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}
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DefaultSizeBinding::ImplicitSize => {
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make_default_implicit(elem, "width", BuiltinFunction::ImplicitItemSize);
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make_default_implicit(elem, "height", BuiltinFunction::ImplicitItemSize);
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}
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}
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}
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Some(elem.clone())
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},
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)
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}
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fn make_default_100(elem: &ElementRc, parent_element: &ElementRc, property: &str) {
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let PropertyLookupResult { resolved_name, property_type } =
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parent_element.borrow().lookup_property(property);
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if property_type != Type::Length {
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return;
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}
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elem.borrow_mut().bindings.entry(resolved_name.to_string()).or_insert_with(|| {
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Expression::PropertyReference(NamedReference::new(parent_element, resolved_name.as_ref()))
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.into()
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});
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}
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fn make_default_implicit(elem: &ElementRc, property: &str, function: BuiltinFunction) {
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elem.borrow_mut().bindings.entry(property.into()).or_insert_with(|| {
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Expression::ObjectAccess {
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base: Expression::FunctionCall {
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function: Box::new(Expression::BuiltinFunctionReference(function)),
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arguments: vec![Expression::ElementReference(Rc::downgrade(elem))],
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source_location: None,
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}
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.into(),
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name: property.into(),
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}
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.into()
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});
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}
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