pub struct ShapePiece { /* private fields */ }Expand description
A shape piece: one data-oriented piece parameterized by ShapeKind, rendered atop the canvas.
Implementations§
Source§impl ShapePiece
impl ShapePiece
pub fn fill<M>(self, p: impl IntoReactive<Color, M>) -> Self
Sourcepub fn fill_linear<M>(self, g: impl IntoReactive<LinearGradient, M>) -> Self
pub fn fill_linear<M>(self, g: impl IntoReactive<LinearGradient, M>) -> Self
Fill with a LinearGradient (unit points resolve against the shape’s bounds). Takes
precedence over Self::fill when both are set; reactive like every other property:
rectangle().fill_linear(move || sky_gradient(state.get())).
Sourcepub fn fill_radial<M>(self, g: impl IntoReactive<RadialGradient, M>) -> Self
pub fn fill_radial<M>(self, g: impl IntoReactive<RadialGradient, M>) -> Self
Fill with a RadialGradient (center + radius in the unit space of the shape’s bounds,
stretching elliptically in non-square bounds). Precedence: radial over linear over solid.
pub fn stroke<M1, M2>( self, color: impl IntoReactive<Color, M1>, width: impl IntoReactive<f64, M2>, ) -> Self
Sourcepub fn inset<M>(self, v: impl IntoReactive<f64, M>) -> Self
pub fn inset<M>(self, v: impl IntoReactive<f64, M>) -> Self
Uniform inset applied before resolving geometry (keeps strokes inside the frame).
Sourcepub fn rotate<M>(self, deg: impl IntoReactive<f64, M>) -> Self
pub fn rotate<M>(self, deg: impl IntoReactive<f64, M>) -> Self
Rotate the drawn shape about its center, in degrees.
Sourcepub fn scale<M>(self, s: impl IntoReactive<f64, M>) -> Self
pub fn scale<M>(self, s: impl IntoReactive<f64, M>) -> Self
Scale the drawn shape about its center (uniform).
Sourcepub fn offset<M1, M2>(
self,
x: impl IntoReactive<f64, M1>,
y: impl IntoReactive<f64, M2>,
) -> Self
pub fn offset<M1, M2>( self, x: impl IntoReactive<f64, M1>, y: impl IntoReactive<f64, M2>, ) -> Self
Translate the drawn shape within its frame.
Sourcepub fn at(self, fx: f64, fy: f64, fw: f64, fh: f64) -> Self
pub fn at(self, fx: f64, fy: f64, fw: f64, fh: f64) -> Self
Resolve this shape inside the fractional sub-rect (fx, fy, fw, fh) of its bounds
(unit-space, applied before Self::inset). The workhorse for composing glyphs in a
shape_group, mirroring hand-drawn Rect::new(ox + fx * s, oy + fy * s, …) canvas code.
Trait Implementations§
Source§impl ShapePieceBuilder for ShapePiece
impl ShapePieceBuilder for ShapePiece
fn fill<M>(self, p: impl IntoReactive<Color, M>) -> Self
Source§fn fill_linear<M>(self, g: impl IntoReactive<LinearGradient, M>) -> Self
fn fill_linear<M>(self, g: impl IntoReactive<LinearGradient, M>) -> Self
Fill with a
LinearGradient (unit points resolve against the shape’s bounds). Takes
precedence over Self::fill when both are set; reactive like every other property:
rectangle().fill_linear(move || sky_gradient(state.get())).Source§fn fill_radial<M>(self, g: impl IntoReactive<RadialGradient, M>) -> Self
fn fill_radial<M>(self, g: impl IntoReactive<RadialGradient, M>) -> Self
Fill with a
RadialGradient (center + radius in the unit space of the shape’s bounds,
stretching elliptically in non-square bounds). Precedence: radial over linear over solid.fn stroke<M1, M2>( self, color: impl IntoReactive<Color, M1>, width: impl IntoReactive<f64, M2>, ) -> Self
Source§fn inset<M>(self, v: impl IntoReactive<f64, M>) -> Self
fn inset<M>(self, v: impl IntoReactive<f64, M>) -> Self
Uniform inset applied before resolving geometry (keeps strokes inside the frame).
Source§fn rotate<M>(self, deg: impl IntoReactive<f64, M>) -> Self
fn rotate<M>(self, deg: impl IntoReactive<f64, M>) -> Self
Rotate the drawn shape about its center, in degrees.
Source§fn scale<M>(self, s: impl IntoReactive<f64, M>) -> Self
fn scale<M>(self, s: impl IntoReactive<f64, M>) -> Self
Scale the drawn shape about its center (uniform).
Source§fn offset<M1, M2>(
self,
x: impl IntoReactive<f64, M1>,
y: impl IntoReactive<f64, M2>,
) -> Self
fn offset<M1, M2>( self, x: impl IntoReactive<f64, M1>, y: impl IntoReactive<f64, M2>, ) -> Self
Translate the drawn shape within its frame.
Source§fn at(self, fx: f64, fy: f64, fw: f64, fh: f64) -> Self
fn at(self, fx: f64, fy: f64, fw: f64, fh: f64) -> Self
Resolve this shape inside the fractional sub-rect
(fx, fy, fw, fh) of its bounds
(unit-space, applied before Self::inset). The workhorse for composing glyphs in a
shape_group, mirroring hand-drawn Rect::new(ox + fx * s, oy + fy * s, …) canvas code.Auto Trait Implementations§
impl !RefUnwindSafe for ShapePiece
impl !Send for ShapePiece
impl !Sync for ShapePiece
impl !UnwindSafe for ShapePiece
impl Freeze for ShapePiece
impl Unpin for ShapePiece
impl UnsafeUnpin for ShapePiece
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<P> Decorate for Pwhere
P: Piece,
impl<P> Decorate for Pwhere
P: Piece,
Source§fn id(self, id: ElementId) -> Decorated<Self>
fn id(self, id: ElementId) -> Decorated<Self>
Stable element identifier: a11y identifier + dayscript locator + lint uniqueness (§5.5). Read more
Source§fn wrapper_id(self, id: ElementId) -> Decorated<Self>
fn wrapper_id(self, id: ElementId) -> Decorated<Self>
Name the node that is outermost at this point in the chain: the padding box, the frame,
the background, whichever wrapper the modifiers before it built. For a dayscript frame
assertion on the wrapper rather than on the piece. Ordered, unlike
id.Source§fn apply_if(
self,
cond: bool,
f: impl FnOnce(Decorated<Self>) -> Decorated<Self>,
) -> Decorated<Self>
fn apply_if( self, cond: bool, f: impl FnOnce(Decorated<Self>) -> Decorated<Self>, ) -> Decorated<Self>
Apply
f to the chain when cond holds, else continue unchanged
(see Decorated::apply_if): nav(sel).apply_if(!primary, |n| n.local()). The
closure receives the decorated piece, so forwarded builder methods and modifiers both
chain inside it.Source§fn apply_some<T>(
self,
value: Option<T>,
f: impl FnOnce(Decorated<Self>, T) -> Decorated<Self>,
) -> Decorated<Self>
fn apply_some<T>( self, value: Option<T>, f: impl FnOnce(Decorated<Self>, T) -> Decorated<Self>, ) -> Decorated<Self>
Apply
f with the value when there is one, else continue unchanged
(see Decorated::apply_some): canvas(draw).apply_some(id, |c, id| c.id(id)).Source§fn id_of(self, id: impl Fn() -> ElementId + 'static) -> Decorated<Self>
fn id_of(self, id: impl Fn() -> ElementId + 'static) -> Decorated<Self>
Reactive element id: the id for rows inside a recycling
list. A plain
id is assigned once at build, but a recycled cell rebinds to different
items over its life (and drag-to-reorder rebinds eagerly), so a static item-derived id
keeps naming the first-bound item. This variant re-registers whenever the closure’s
value changes; read your ItemSlot inside it:
.id_of(move || day_core::id!(row_remove, slot.key())).Source§fn tweak(self, f: impl FnOnce(RNode) + 'static) -> Decorated<Self>
fn tweak(self, f: impl FnOnce(RNode) + 'static) -> Decorated<Self>
Apply a tweak:
f runs once at mount, after the native widget exists, with the
realized node (docs/tweaks.md). Reach the typed native handle through the compiled
backend’s ext accessor (day_appkit::with_native, day_gtk::with_native, …), or apply
a packaged day-tweak-* crate’s modifier instead of calling this directly. If the native
change affects the widget’s intrinsic size, follow it with
day_core::invalidate_size. Day may overwrite managed properties (title, value,
enabled, frame, a11y) on its next patch; unmanaged properties are stable. Read moreSource§fn selectable(self) -> Decorated<Self>
fn selectable(self) -> Decorated<Self>
Source§fn cursor<M>(self, cursor: impl IntoReactive<Cursor, M>) -> Decorated<Self>
fn cursor<M>(self, cursor: impl IntoReactive<Cursor, M>) -> Decorated<Self>
Shape the pointer while it is over this piece and its descendants (docs/cursor.md): a
Cursor constant, a Signal<Cursor>, or a closure, so a canvas tool or a busy state
moves the shape without rebuilding the piece. The nearest ancestor’s cursor wins, and
Cursor::Default releases the piece back to the platform. capability(Cap::Cursor)
says whether this toolkit draws the requested shapes, a nearest neighbor, or nothing;
a touch-only host never shows one, which is correct rather than a failure.Source§fn window_drag_region(self) -> Decorated<Self>
fn window_drag_region(self) -> Decorated<Self>
Let the user move the window by dragging this piece, as a title bar does
(docs/window-chrome.md): what a custom title bar in a
WindowChrome::Overlay or
WindowChrome::Frameless window needs. The piece’s own background starts the drag,
with the platform’s snapping and tiling; buttons and fields inside it keep their clicks;
a double click does what the user’s title-bar setting says (zoom, minimize, nothing).
capability(Cap::DragRegion); on a phone the piece is an ordinary view.Source§fn native_ref(self, r: &NativeRef) -> Decorated<Self>
fn native_ref(self, r: &NativeRef) -> Decorated<Self>
Capture a
NativeRef to this piece’s realized node for later imperative access
(docs/tweaks.md). The ref clears automatically when the piece’s scope is disposed.fn padding(self, insets: impl IntoInsets) -> Decorated<Self>
Source§fn max_width(self, max: f64) -> Decorated<Self>
fn max_width(self, max: f64) -> Decorated<Self>
Cap this piece’s width at
max points: the child is never PROPOSED more, so text
wraps inside the cap (chat bubbles, readable columns) while narrower content hugs.Source§fn reserving(self, sample: impl Into<String>) -> Decorated<Self>
fn reserving(self, sample: impl Into<String>) -> Decorated<Self>
Reserve at least the space
sample needs, so this piece’s size stops changing with its
content. Read morefn frame(self, width: f64, height: f64) -> Decorated<Self>
Source§fn width(self, width: f64) -> Decorated<Self>
fn width(self, width: f64) -> Decorated<Self>
Fix this piece’s width to
width points while its height stays flexible (hugging its
content or filling on the cross axis). The single-axis complement to Self::frame, e.g.
a fixed-width sidebar pane in a row whose height fills the window.Source§fn height(self, height: f64) -> Decorated<Self>
fn height(self, height: f64) -> Decorated<Self>
Fix this piece’s height to
height points while its width stays flexible. The single-axis
complement to Self::frame, e.g. a fixed-height header/toolbar bar that fills its width.fn a11y( self, f: impl FnOnce(A11yBuilder) -> A11yBuilder + 'static, ) -> Decorated<Self>
Source§fn on_tap(self, f: impl Fn() + 'static) -> Decorated<Self>
fn on_tap(self, f: impl Fn() + 'static) -> Decorated<Self>
Fire when this piece is tapped (bounding-box; shapes override with path-precise testing). Read more
Source§fn focused<M>(self, binding: impl IntoFocusBinding<M>) -> Decorated<Self>
fn focused<M>(self, binding: impl IntoFocusBinding<M>) -> Decorated<Self>
Bind this control’s keyboard focus to a signal (docs/focus.md), two-way like every other
binding: native focus changes write the signal; writing the signal moves focus. Takes a
Signal<bool> for one control, or (Signal<Option<K>>, K::Variant) binding one control
of a group; writing false/None resigns focus (dismissing the soft keyboard on
mobile). Focus applies asynchronously: a write is a request, resolved on the next turn,
and the signal always ends up reflecting what the platform actually did.Source§fn on_key(self, f: impl Fn(&KeyEvent) + 'static) -> Decorated<Self>
fn on_key(self, f: impl Fn(&KeyEvent) + 'static) -> Decorated<Self>
Handle the non-text keys (the arrows) that reach this piece while it has focus
(docs/menus.md). Keys follow focus, so pair it with
Decorate::focused or with a
piece the user can click into: a canvas takes focus on a press, and only the focused
piece hears the keys, so a nudge handler can never fire while a text field, a list or a
sidebar is the one being typed into. Read moreSource§fn toolbar<M>(self, content: impl ToolbarContent<M>) -> Decorated<Self>
fn toolbar<M>(self, content: impl ToolbarContent<M>) -> Decorated<Self>
Declare toolbar items on the chrome this piece sits under (docs/toolbars.md). Read more
Source§fn searchable(self, search: Search) -> Decorated<Self>
fn searchable(self, search: Search) -> Decorated<Self>
A search field for this navigation page (docs/search.md, “Page search”), drawn where the
platform puts a page’s search: the window toolbar on a desktop, the page’s navigation bar
on iOS (a
UISearchController), its app bar on Android. It shows while this page does, and
its text is the app’s query both ways. For a search the server runs, act on
crate::Search::on_submit; for a local filter, read the query. Declare it on a
nav_stack destination, as .toolbar(…) is declared; a whole navigation surface takes
crate::Nav::searchable instead.Source§fn focusable(self) -> Decorated<Self>
fn focusable(self) -> Decorated<Self>
Opt this piece into the platform’s focus system (docs/focus.md): the canvas contract
for anything composed: it joins the key loop, takes focus on a press, reports through
.focused(…), and hears the arrows through .on_key(…) while focused. A composed
list column is the motivating case (docs/navigation.md). On a backend without the
set_focusable duty the piece renders normally and never takes focus.Source§fn drag_source(
self,
source: impl Fn(Point) -> Option<Offer> + 'static,
) -> Decorated<Self>
fn drag_source( self, source: impl Fn(Point) -> Option<Offer> + 'static, ) -> Decorated<Self>
Attach a context menu, shown with the platform’s native affordance on secondary-click (desktop)
or long-press (mobile). Items are built with
menu_item/sub_menu/menu_role/
menu_separator. Passing an empty Vec removes any menu.fn drop_target(self, target: Target) -> Decorated<Self>
A context menu (docs/menus.md): shown on secondary-click / long-press, built from the
same
menu_item/sub_menu entries as everywhere else. Takes a fixed list, or a closure
built when the menu is summoned (“Dynamic context menus”): with no argument, or with the
summon point in this piece’s own coordinates, so a canvas can select what is under the
pointer and offer commands for that selection. An empty result shows nothing. Read morefn on_drag(self, f: impl Fn(Drag) + 'static) -> Decorated<Self>
Source§fn on_pinch(self, f: impl Fn(Pinch) + 'static) -> Decorated<Self>
fn on_pinch(self, f: impl Fn(Pinch) + 'static) -> Decorated<Self>
Fire on each phase of a pinch/magnify over this piece (docs/canvas.md “Zoom and
pan”). Only backends with a native recognizer wired emit it; pair a zoom with
visible controls.
Source§fn on_pan(self, f: impl Fn(Pan) + 'static) -> Decorated<Self>
fn on_pan(self, f: impl Fn(Pan) + 'static) -> Decorated<Self>
Fire on each viewport-pan event over this piece (docs/canvas.md “Zoom and pan”):
trackpad two-finger scroll, two-finger touch pan.
delta is incremental; apply it
as it arrives.Source§fn on_hover(self, f: impl Fn(Option<Point>) + 'static) -> Decorated<Self>
fn on_hover(self, f: impl Fn(Option<Point>) + 'static) -> Decorated<Self>
The pointer moving over this piece:
Some(point) in its own coordinates while inside,
None when it leaves (docs/canvas.md “Interaction”). Pointer-only; wire on_tap_at
alongside it so a touch-only device can reach the same thing.Source§fn card(self) -> Decorated<Self>
fn card(self) -> Decorated<Self>
Fill the piece’s bounds with a solid color painted behind it: a message-bubble / card /
badge surface. Accepts a constant
Color, a Signal<Color>, or a Fn() -> Color; a
reactive color repaints the surface when its source changes. Wraps the piece in a native
container that carries the fill, so it composes with Self::corner_radius for a rounded
colored surface and with Self::padding for interior inset.
The platform’s card around this piece: the grouped-content surface with rounded
corners and a Space::M inset (see Decorated::card).fn background<M>(self, color: impl IntoReactive<Color, M>) -> Decorated<Self>
Source§fn corner_radius(self, radius: f64) -> Decorated<Self>
fn corner_radius(self, radius: f64) -> Decorated<Self>
Round the piece’s corners to
radius points, clipping its background and content to the
rounded rectangle. Compose after Self::background for a rounded colored surface, or use
alone to round a clipped child (e.g. an avatar image).Source§fn opacity<M>(self, opacity: impl IntoReactive<f64, M>) -> Decorated<Self>
fn opacity<M>(self, opacity: impl IntoReactive<f64, M>) -> Decorated<Self>
Animate/set the piece’s opacity (
0.0 transparent … 1.0 opaque). Wrapped in a native
layer so it composes with .background; the change animates when made inside
with_animation or under a .animation ancestor (§8.4).Source§fn transform<M>(self, t: impl IntoReactive<Transform, M>) -> Decorated<Self>
fn transform<M>(self, t: impl IntoReactive<Transform, M>) -> Decorated<Self>
Apply an animatable
Transform (translate/scale/rotate about the center): the cheap
movement/scaling channel that never triggers relayout (§8.4). Prefer this over .offset
for animated motion.Source§fn scale<M>(self, factor: impl IntoReactive<f64, M>) -> Decorated<Self>
fn scale<M>(self, factor: impl IntoReactive<f64, M>) -> Decorated<Self>
Uniformly scale the piece by
factor about its center (animatable). Convenience over
Self::transform.Source§fn rotation<M>(self, degrees: impl IntoReactive<f64, M>) -> Decorated<Self>
fn rotation<M>(self, degrees: impl IntoReactive<f64, M>) -> Decorated<Self>
Rotate the piece by
degrees clockwise about its center (animatable).Source§fn translation<Mx, My>(
self,
x: impl IntoReactive<f64, Mx>,
y: impl IntoReactive<f64, My>,
) -> Decorated<Self>
fn translation<Mx, My>( self, x: impl IntoReactive<f64, Mx>, y: impl IntoReactive<f64, My>, ) -> Decorated<Self>
Translate the piece by (
x, y) points without relayout (animatable): the
animation-friendly sibling of .offset.Source§fn animation(self, anim: AnimSpec) -> Decorated<Self>
fn animation(self, anim: AnimSpec) -> Decorated<Self>
Attach an implicit animation (§8.4): changes to this piece’s (and its descendants’)
animatable properties animate with
anim even outside a with_animation. SwiftUI’s
.animation. The ambient with_animation takes precedence when both apply.Source§fn overlay(self, over: impl Piece) -> Decorated<Self>
fn overlay(self, over: impl Piece) -> Decorated<Self>
Draw
over on top of this piece, centered, without affecting layout size: a badge /
annotation overlay. self is the sizing content (bottom of the z-order); over is proposed
self’s size and drawn on top. For an explicit alignment use Self::overlay_aligned; for
a stack that sizes to the union of its children use zstack.Source§fn overlay_aligned(self, align: Alignment, over: impl Piece) -> Decorated<Self>
fn overlay_aligned(self, align: Alignment, over: impl Piece) -> Decorated<Self>
Self::overlay with an explicit Alignment for the annotation (e.g. a corner badge with
Alignment::TopTrailing).Source§fn aspect_ratio(self, ratio: f64) -> Decorated<Self>
fn aspect_ratio(self, ratio: f64) -> Decorated<Self>
Constrain this piece to a
width / height ratio: the largest box of that shape which
fits whatever the parent offers (SwiftUI’s .aspectRatio(_:contentMode: .fit)). Read moreSource§fn grow(self) -> Decorated<Self>
fn grow(self) -> Decorated<Self>
Expand to fill the available space on both axes (a filling pane / card that stretches to
its container). Wraps the piece in a layout-only node carrying grow
Flex: the stack
offers it the space and it fills; no native backing, so this is a pure layout change.Source§fn grid_align(self, a: Alignment) -> Decorated<Self>
fn grid_align(self, a: Alignment) -> Decorated<Self>
Override this cell’s alignment within its cell rect of the enclosing
grid
(docs/grid.md). Apply last (outermost), like Decorated::grid_span.Source§fn defers_system_gestures(self, edges: Edges) -> Decorated<Self>
fn defers_system_gestures(self, edges: Edges) -> Decorated<Self>
While this subtree is mounted, ask the OS to require a second swipe for its edge
gestures on
edges (docs/cover.md), the SwiftUI defersSystemGestures(on:)
analogue. Put it on a game or drawing surface whose touches run to the screen edge,
so a swipe up from the bottom doesn’t leave the app. iOS defers the chosen edges’
system gestures; Android enters swipe-to-reveal immersive mode while any subtree
requests deferral; desktop backends no-op.While this subtree is mounted and
hidden is true, hide the system status bar, the
SwiftUI statusBarHidden(_:) analogue (docs/cover.md). hidden is a constant, a
Signal, or a closure, so a setting can turn it on and off in place. Put it on a page
that wants the whole screen (a reader, a game, a photo viewer); the bar returns when
the page unmounts. Any mounted request that answers true hides the bar. iOS, Android and
HarmonyOS hide it (Cap::StatusBarHidden); desktop and web have none and ignore it.Source§fn interactive_dismiss_disabled(self) -> Decorated<Self>
fn interactive_dismiss_disabled(self) -> Decorated<Self>
While this subtree is mounted, the enclosing
cover (or other modal surface) must
not be dismissed interactively, the SwiftUI interactiveDismissDisabled() analogue
(docs/cover.md). System back / sheet gestures are ignored; only programmatic writes
(an explicit close control) dismiss it.impl<T> ErasedDestructor for Twhere
T: 'static,
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read more