mirror of
https://github.com/slint-ui/slint.git
synced 2025-08-03 10:23:32 +00:00
f6da161dbb
SmolStr has an Arc internally for large strings. This allows
cheap copies of large strings, but we lose that ability
when we convert the SmolStr to a &str and then reconstruct a
SmolStr from that slice.
I was hoping for some larger gains here, considering the impact
of this code change, but it only removes ~50k allocations,
while the impact on the runtime is not noticeable at all.
Still, I believe this is the right thing to do.
Before:
```
allocations: 2338981
Time (mean ± σ): 988.3 ms ± 17.9 ms [User: 690.2 ms, System: 206.4 ms]
Range (min … max): 956.4 ms … 1016.3 ms 10 runs
```
After:
```
allocations: 2287723
Time (mean ± σ): 989.8 ms ± 23.2 ms [User: 699.2 ms, System: 197.6 ms]
Range (min … max): 945.3 ms … 1021.4 ms 10 runs
```
113 lines
4.9 KiB
Rust
113 lines
4.9 KiB
Rust
// Copyright © SixtyFPS GmbH <info@slint.dev>
|
|
// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-2.0 OR LicenseRef-Slint-Software-3.0
|
|
|
|
//! Passe that apply the default property from the style.
|
|
//!
|
|
//! Note that the layout default property are handled in the lower_layout pass
|
|
|
|
use crate::diagnostics::BuildDiagnostics;
|
|
use crate::expression_tree::{Expression, NamedReference};
|
|
use crate::langtype::Type;
|
|
use crate::object_tree::Component;
|
|
use smol_str::SmolStr;
|
|
use std::rc::Rc;
|
|
|
|
/// Ideally we would be able to write this in builtin.slint, but the StyleMetrics is not available there
|
|
pub fn apply_default_properties_from_style(
|
|
root_component: &Rc<Component>,
|
|
style_metrics: &Rc<Component>,
|
|
palette: &Rc<Component>,
|
|
_diag: &mut BuildDiagnostics,
|
|
) {
|
|
crate::object_tree::recurse_elem_including_sub_components(
|
|
root_component,
|
|
&(),
|
|
&mut |elem, _| {
|
|
let mut elem = elem.borrow_mut();
|
|
match elem.builtin_type().as_ref().map_or("", |b| b.name.as_str()) {
|
|
"TextInput" => {
|
|
elem.set_binding_if_not_set("text-cursor-width".into(), || {
|
|
Expression::PropertyReference(NamedReference::new(
|
|
&style_metrics.root_element,
|
|
SmolStr::new_static("text-cursor-width"),
|
|
))
|
|
});
|
|
elem.set_binding_if_not_set("color".into(), || {
|
|
Expression::PropertyReference(NamedReference::new(
|
|
&palette.root_element,
|
|
SmolStr::new_static("foreground"),
|
|
))
|
|
.into()
|
|
});
|
|
elem.set_binding_if_not_set("selection-background-color".into(), || {
|
|
Expression::Cast {
|
|
from: Expression::PropertyReference(NamedReference::new(
|
|
&palette.root_element,
|
|
SmolStr::new_static("selection-background"),
|
|
))
|
|
.into(),
|
|
to: Type::Color,
|
|
}
|
|
});
|
|
elem.set_binding_if_not_set("selection-foreground-color".into(), || {
|
|
Expression::Cast {
|
|
from: Expression::PropertyReference(NamedReference::new(
|
|
&palette.root_element,
|
|
SmolStr::new_static("selection-foreground"),
|
|
))
|
|
.into(),
|
|
to: Type::Color,
|
|
}
|
|
});
|
|
}
|
|
"Text" => {
|
|
elem.set_binding_if_not_set("color".into(), || Expression::Cast {
|
|
from: Expression::PropertyReference(NamedReference::new(
|
|
&palette.root_element,
|
|
SmolStr::new_static("foreground"),
|
|
))
|
|
.into(),
|
|
to: Type::Brush,
|
|
});
|
|
}
|
|
"Dialog" | "Window" => {
|
|
elem.set_binding_if_not_set("background".into(), || Expression::Cast {
|
|
from: Expression::PropertyReference(NamedReference::new(
|
|
&palette.root_element,
|
|
SmolStr::new_static("background"),
|
|
))
|
|
.into(),
|
|
to: Type::Brush,
|
|
});
|
|
|
|
let mut bind_style_property_if_exists = |property_name, property_type| {
|
|
if !matches!(
|
|
style_metrics
|
|
.root_element
|
|
.borrow()
|
|
.lookup_property(property_name)
|
|
.property_type,
|
|
Type::Invalid,
|
|
) {
|
|
elem.set_binding_if_not_set(property_name.into(), || {
|
|
Expression::Cast {
|
|
from: Expression::PropertyReference(NamedReference::new(
|
|
&style_metrics.root_element,
|
|
SmolStr::new_static(property_name),
|
|
))
|
|
.into(),
|
|
to: property_type,
|
|
}
|
|
});
|
|
}
|
|
};
|
|
|
|
bind_style_property_if_exists("default-font-size", Type::LogicalLength);
|
|
bind_style_property_if_exists("default-font-family", Type::String);
|
|
}
|
|
|
|
_ => {}
|
|
}
|
|
},
|
|
)
|
|
}
|