Skip to content

feat: iOS masking for app icon previews #161

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
CLARATION merged 1 commit into from
Apr 7, 2026
+131 −15
Merged

feat: iOS masking for app icon previews #161

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 2 additions & 0 deletions Cargo.lock
View file
Open in desktop

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

1 change: 1 addition & 0 deletions apps/plumeimpactor/Cargo.toml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@ log.workspace = true
chrono.workspace = true
rustls.workspace = true
image.workspace = true
tiny-skia = "0.11.4"
plume_core = { path = "../../crates/plume_core", features = ["tweaks"] }
plume_utils = { path = "../../crates/plume_utils" }
plume_store = { path = "../../crates/plume_store" }
Expand Down
143 changes: 128 additions & 15 deletions apps/plumeimpactor/src/screen/package.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ use iced::widget::{
use iced::{Alignment, Center, Element, Fill, Task};
use plume_utils::{Package, PlistInfoTrait, SignerInstallMode, SignerMode, SignerOptions};
use std::path::PathBuf;
use tiny_skia::{FillRule, Mask, Path, PathBuilder, Transform};

use crate::appearance;

Expand Down Expand Up @@ -48,12 +49,12 @@ impl PackageScreen {
let package_icon_handle = package
.as_ref()
.and_then(|p| p.app_icon_data.as_ref())
.map(|data| image::Handle::from_bytes(data.clone()));
.and_then(|data| icon_handle_from_bytes(data));

let custom_icon_path = options.custom_icon.clone();
let custom_icon_handle = custom_icon_path
.as_ref()
.map(|path| image::Handle::from_path(path.clone()));
.and_then(icon_handle_from_path);

Self {
selected_package: package,
Expand Down Expand Up @@ -202,7 +203,7 @@ impl PackageScreen {
if let Some(path) = path {
self.options.custom_icon = Some(path.clone());
self.custom_icon_path = Some(path.clone());
self.custom_icon_handle = Some(image::Handle::from_path(path));
self.custom_icon_handle = icon_handle_from_path(&path);
}

Task::none()
Expand Down Expand Up @@ -449,22 +450,24 @@ impl PackageScreen {
.align_y(Center);

let preview: Element<'_, Message> = if let Some(handle) = &self.custom_icon_handle {
stack![
container(stack![
loading_indicator,
image(handle.clone())
.width(ICON_SIZE)
.height(ICON_SIZE)
.border_radius(appearance::THEME_CORNER_RADIUS)
]
image(handle.clone()).width(ICON_SIZE).height(ICON_SIZE)
])
.width(ICON_SIZE)
.height(ICON_SIZE)
.align_x(Center)
.align_y(Center)
.into()
} else if let Some(handle) = &self.package_icon_handle {
stack![
container(stack![
loading_indicator,
image(handle.clone())
.width(ICON_SIZE)
.height(ICON_SIZE)
.border_radius(appearance::THEME_CORNER_RADIUS)
]
image(handle.clone()).width(ICON_SIZE).height(ICON_SIZE)
])
.width(ICON_SIZE)
.height(ICON_SIZE)
.align_x(Center)
.align_y(Center)
.into()
} else {
container(text("No icon").size(11))
Expand Down Expand Up @@ -520,3 +523,113 @@ impl PackageScreen {
}
}
}

const IOS_ICON_CORNER_RADIUS_FACTOR: f32 = 0.225;
const IOS_ICON_EDGE: f32 = 1.528_665;
const IOS_ICON_SHOULDER: f32 = 0.631_493_8;
const IOS_ICON_KNEE: f32 = 0.074_911_39;
const IOS_ICON_CTRL_EDGE: f32 = 1.088_493;
const IOS_ICON_CTRL_SHOULDER: f32 = 0.868_406_95;
const IOS_ICON_CTRL_CURVE_OUTER: f32 = 0.372_823_83;
const IOS_ICON_CTRL_CURVE_INNER: f32 = 0.169_059_56;

fn icon_handle_from_bytes(data: &[u8]) -> Option<image::Handle> {
icon_handle_from_image(::image::load_from_memory(data).ok()?)
}

fn icon_handle_from_path(path: &PathBuf) -> Option<image::Handle> {
icon_handle_from_image(::image::open(path).ok()?)
}

fn icon_handle_from_image(image: ::image::DynamicImage) -> Option<image::Handle> {
let mut pixels = image.to_rgba8();
let (width, height) = pixels.dimensions();
let mut mask = Mask::new(width, height)?;
mask.fill_path(
&ios_icon_mask(width as f32, height as f32)?,
FillRule::Winding,
true,
Transform::identity(),
);

for (pixel, coverage) in pixels.chunks_exact_mut(4).zip(mask.data()) {
pixel[3] = ((u16::from(pixel[3]) * u16::from(*coverage) + 127) / 255) as u8;
}

Some(image::Handle::from_rgba(width, height, pixels.into_raw()))
}

fn ios_icon_mask(width: f32, height: f32) -> Option<Path> {
let radius = width.min(height) * IOS_ICON_CORNER_RADIUS_FACTOR;
let mut path = PathBuilder::new();
let tl = |x: f32, y: f32| (x * radius, y * radius);
let tr = |x: f32, y: f32| (width - x * radius, y * radius);
let br = |x: f32, y: f32| (width - x * radius, height - y * radius);
let bl = |x: f32, y: f32| (x * radius, height - y * radius);

let (x, y) = tl(IOS_ICON_EDGE, 0.0);
path.move_to(x, y);

let (x, y) = tr(IOS_ICON_EDGE, 0.0);
path.line_to(x, y);
let (x1, y1) = tr(IOS_ICON_CTRL_EDGE, 0.0);
let (x2, y2) = tr(IOS_ICON_CTRL_SHOULDER, 0.0);
let (x, y) = tr(IOS_ICON_SHOULDER, IOS_ICON_KNEE);
path.cubic_to(x1, y1, x2, y2, x, y);
let (x1, y1) = tr(IOS_ICON_CTRL_CURVE_OUTER, IOS_ICON_CTRL_CURVE_INNER);
let (x2, y2) = tr(IOS_ICON_CTRL_CURVE_INNER, IOS_ICON_CTRL_CURVE_OUTER);
let (x, y) = tr(IOS_ICON_KNEE, IOS_ICON_SHOULDER);
path.cubic_to(x1, y1, x2, y2, x, y);
let (x1, y1) = tr(0.0, IOS_ICON_CTRL_SHOULDER);
let (x2, y2) = tr(0.0, IOS_ICON_CTRL_EDGE);
let (x, y) = tr(0.0, IOS_ICON_EDGE);
path.cubic_to(x1, y1, x2, y2, x, y);

let (x, y) = br(0.0, IOS_ICON_EDGE);
path.line_to(x, y);
let (x1, y1) = br(0.0, IOS_ICON_CTRL_EDGE);
let (x2, y2) = br(0.0, IOS_ICON_CTRL_SHOULDER);
let (x, y) = br(IOS_ICON_KNEE, IOS_ICON_SHOULDER);
path.cubic_to(x1, y1, x2, y2, x, y);
let (x1, y1) = br(IOS_ICON_CTRL_CURVE_INNER, IOS_ICON_CTRL_CURVE_OUTER);
let (x2, y2) = br(IOS_ICON_CTRL_CURVE_OUTER, IOS_ICON_CTRL_CURVE_INNER);
let (x, y) = br(IOS_ICON_SHOULDER, IOS_ICON_KNEE);
path.cubic_to(x1, y1, x2, y2, x, y);
let (x1, y1) = br(IOS_ICON_CTRL_SHOULDER, 0.0);
let (x2, y2) = br(IOS_ICON_CTRL_EDGE, 0.0);
let (x, y) = br(IOS_ICON_EDGE, 0.0);
path.cubic_to(x1, y1, x2, y2, x, y);

let (x, y) = bl(IOS_ICON_EDGE, 0.0);
path.line_to(x, y);
let (x1, y1) = bl(IOS_ICON_CTRL_EDGE, 0.0);
let (x2, y2) = bl(IOS_ICON_CTRL_SHOULDER, 0.0);
let (x, y) = bl(IOS_ICON_SHOULDER, IOS_ICON_KNEE);
path.cubic_to(x1, y1, x2, y2, x, y);
let (x1, y1) = bl(IOS_ICON_CTRL_CURVE_OUTER, IOS_ICON_CTRL_CURVE_INNER);
let (x2, y2) = bl(IOS_ICON_CTRL_CURVE_INNER, IOS_ICON_CTRL_CURVE_OUTER);
let (x, y) = bl(IOS_ICON_KNEE, IOS_ICON_SHOULDER);
path.cubic_to(x1, y1, x2, y2, x, y);
let (x1, y1) = bl(0.0, IOS_ICON_CTRL_SHOULDER);
let (x2, y2) = bl(0.0, IOS_ICON_CTRL_EDGE);
let (x, y) = bl(0.0, IOS_ICON_EDGE);
path.cubic_to(x1, y1, x2, y2, x, y);

let (x, y) = tl(0.0, IOS_ICON_EDGE);
path.line_to(x, y);
let (x1, y1) = tl(0.0, IOS_ICON_CTRL_EDGE);
let (x2, y2) = tl(0.0, IOS_ICON_CTRL_SHOULDER);
let (x, y) = tl(IOS_ICON_KNEE, IOS_ICON_SHOULDER);
path.cubic_to(x1, y1, x2, y2, x, y);
let (x1, y1) = tl(IOS_ICON_CTRL_CURVE_INNER, IOS_ICON_CTRL_CURVE_OUTER);
let (x2, y2) = tl(IOS_ICON_CTRL_CURVE_OUTER, IOS_ICON_CTRL_CURVE_INNER);
let (x, y) = tl(IOS_ICON_SHOULDER, IOS_ICON_KNEE);
path.cubic_to(x1, y1, x2, y2, x, y);
let (x1, y1) = tl(IOS_ICON_CTRL_SHOULDER, 0.0);
let (x2, y2) = tl(IOS_ICON_CTRL_EDGE, 0.0);
let (x, y) = tl(IOS_ICON_EDGE, 0.0);
path.cubic_to(x1, y1, x2, y2, x, y);

path.close();
path.finish()
}