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use std::iter::zip;
use arrayvec::ArrayVec;
use niri_config::GradientRelativeTo;
use smithay::backend::renderer::element::solid::{SolidColorBuffer, SolidColorRenderElement};
use smithay::backend::renderer::element::Kind;
use smithay::utils::{Logical, Point, Rectangle, Scale, Size};
use crate::niri_render_elements;
use crate::render_helpers::gradient::GradientRenderElement;
use crate::render_helpers::renderer::NiriRenderer;
#[derive(Debug)]
pub struct FocusRing {
buffers: [SolidColorBuffer; 4],
locations: [Point<i32, Logical>; 4],
sizes: [Size<i32, Logical>; 4],
full_size: Size<i32, Logical>,
is_active: bool,
is_border: bool,
config: niri_config::FocusRing,
}
niri_render_elements! {
FocusRingRenderElement => {
SolidColor = SolidColorRenderElement,
Gradient = GradientRenderElement,
}
}
impl FocusRing {
pub fn new(config: niri_config::FocusRing) -> Self {
Self {
buffers: Default::default(),
locations: Default::default(),
sizes: Default::default(),
full_size: Default::default(),
is_active: false,
is_border: false,
config,
}
}
pub fn update_config(&mut self, config: niri_config::FocusRing) {
self.config = config;
}
pub fn update(&mut self, win_size: Size<i32, Logical>, is_border: bool) {
let width = i32::from(self.config.width);
self.full_size = win_size + Size::from((width * 2, width * 2));
if is_border {
self.sizes[0] = Size::from((win_size.w + width * 2, width));
self.sizes[1] = Size::from((win_size.w + width * 2, width));
self.sizes[2] = Size::from((width, win_size.h));
self.sizes[3] = Size::from((width, win_size.h));
for (buf, size) in zip(&mut self.buffers, self.sizes) {
buf.resize(size);
}
self.locations[0] = Point::from((-width, -width));
self.locations[1] = Point::from((-width, win_size.h));
self.locations[2] = Point::from((-width, 0));
self.locations[3] = Point::from((win_size.w, 0));
} else {
self.sizes[0] = self.full_size;
self.buffers[0].resize(self.sizes[0]);
self.locations[0] = Point::from((-width, -width));
}
self.is_border = is_border;
}
pub fn set_active(&mut self, is_active: bool) {
let color = if is_active {
self.config.active_color.into()
} else {
self.config.inactive_color.into()
};
for buf in &mut self.buffers {
buf.set_color(color);
}
self.is_active = is_active;
}
pub fn render<R: NiriRenderer>(
&self,
renderer: &mut R,
location: Point<i32, Logical>,
scale: Scale<f64>,
view_size: Size<i32, Logical>,
) -> impl Iterator<Item = FocusRingRenderElement> {
let mut rv = ArrayVec::<_, 4>::new();
if self.config.off {
return rv.into_iter();
}
let gradient = if self.is_active {
self.config.active_gradient
} else {
self.config.inactive_gradient
};
let full_rect = Rectangle::from_loc_and_size(location + self.locations[0], self.full_size);
let view_rect = Rectangle::from_loc_and_size((0, 0), view_size);
let mut push = |buffer, location: Point<i32, Logical>, size: Size<i32, Logical>| {
let elem = gradient.and_then(|gradient| {
let gradient_area = match gradient.relative_to {
GradientRelativeTo::Window => full_rect,
GradientRelativeTo::WorkspaceView => view_rect,
};
GradientRenderElement::new(
renderer,
scale,
Rectangle::from_loc_and_size(location, size),
gradient_area,
gradient.from.into(),
gradient.to.into(),
((gradient.angle as f32) - 90.).to_radians(),
)
.map(Into::into)
});
let elem = elem.unwrap_or_else(|| {
SolidColorRenderElement::from_buffer(
buffer,
location.to_physical_precise_round(scale),
scale,
1.,
Kind::Unspecified,
)
.into()
});
rv.push(elem);
};
if self.is_border {
for (buf, (loc, size)) in zip(&self.buffers, zip(self.locations, self.sizes)) {
push(buf, location + loc, size);
}
} else {
push(
&self.buffers[0],
location + self.locations[0],
self.sizes[0],
);
}
rv.into_iter()
}
pub fn width(&self) -> i32 {
self.config.width.into()
}
pub fn is_off(&self) -> bool {
self.config.off
}
}
|
