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freya_core/elements/
extensions.rs

1use std::{
2    borrow::Cow,
3    hash::{
4        Hash,
5        Hasher,
6    },
7};
8
9use paste::paste;
10use rustc_hash::{
11    FxHashMap,
12    FxHasher,
13};
14use torin::{
15    content::Content,
16    gaps::Gaps,
17    prelude::{
18        Alignment,
19        Direction,
20        Length,
21        Position,
22        VisibleSize,
23    },
24    size::Size,
25};
26
27use crate::{
28    data::{
29        AccessibilityData,
30        EffectData,
31        LayoutData,
32        Overflow,
33        TextStyleData,
34    },
35    diff_key::DiffKey,
36    element::{
37        Element,
38        EventHandlerType,
39    },
40    elements::image::{
41        AspectRatio,
42        ImageCover,
43        ImageData,
44        SamplingMode,
45    },
46    event_handler::EventHandler,
47    events::{
48        data::{
49            Event,
50            KeyboardEventData,
51            MouseEventData,
52            SizedEventData,
53            WheelEventData,
54        },
55        name::EventName,
56    },
57    layers::Layer,
58    prelude::*,
59    style::{
60        font_size::FontSize,
61        font_slant::FontSlant,
62        font_weight::FontWeight,
63        font_width::FontWidth,
64        scale::Scale,
65        text_height::TextHeightBehavior,
66        text_overflow::TextOverflow,
67        text_shadow::TextShadow,
68    },
69};
70
71/// Trait for composing child elements.
72pub trait ChildrenExt: Sized {
73    /// Returns a mutable reference to the internal children vector.
74    ///
75    /// # Example
76    /// ```ignore
77    /// impl ChildrenExt for MyElement {
78    ///     fn get_children(&mut self) -> &mut Vec<Element> {
79    ///         &mut self.elements
80    ///     }
81    /// }
82    /// ```
83    fn get_children(&mut self) -> &mut Vec<Element>;
84
85    /// Extends the children with an iterable of [`Element`]s.
86    ///
87    /// # Example
88    /// ```ignore
89    /// rect().children(["Hello", "World"].map(|t| label().text(t).into_element()))
90    /// ```
91    fn children(mut self, children: impl IntoIterator<Item = Element>) -> Self {
92        self.get_children().extend(children);
93        self
94    }
95
96    /// Appends a child only when the [`Option`] is [`Some`].
97    ///
98    /// # Example
99    /// ```ignore
100    /// rect().maybe_child(show_badge.then(|| label().text("New")))
101    /// ```
102    fn maybe_child<C: IntoElement>(mut self, child: Option<C>) -> Self {
103        if let Some(child) = child {
104            self.get_children().push(child.into_element());
105        }
106        self
107    }
108
109    /// Appends a single child element.
110    ///
111    /// # Example
112    /// ```ignore
113    /// rect().child(label().text("Hello"))
114    /// ```
115    fn child<C: IntoElement>(mut self, child: C) -> Self {
116        self.get_children().push(child.into_element());
117        self
118    }
119}
120
121pub trait KeyExt: Sized {
122    fn write_key(&mut self) -> &mut DiffKey;
123
124    fn key(mut self, key: impl Hash) -> Self {
125        let mut hasher = FxHasher::default();
126        key.hash(&mut hasher);
127        *self.write_key() = DiffKey::U64(hasher.finish());
128        self
129    }
130}
131
132pub trait ListExt {
133    fn with(self, other: Self) -> Self;
134}
135
136impl<T> ListExt for Vec<T> {
137    fn with(mut self, other: Self) -> Self {
138        self.extend(other);
139        self
140    }
141}
142
143macro_rules! event_handlers {
144    (
145        $handler_variant:ident, $event_data:ty;
146        $(
147            $name:ident => $event_variant:expr ;
148        )*
149    ) => {
150        paste! {
151            $(
152                fn [<on_$name>](mut self, [<on_$name>]: impl Into<EventHandler<Event<$event_data>>>) -> Self {
153                    self.get_event_handlers()
154                        .insert($event_variant, EventHandlerType::$handler_variant([<on_$name>].into()));
155                    self
156                }
157            )*
158        }
159    };
160}
161
162pub trait EventHandlersExt: Sized {
163    fn get_event_handlers(&mut self) -> &mut FxHashMap<EventName, EventHandlerType>;
164
165    fn with_event_handlers(
166        mut self,
167        event_handlers: FxHashMap<EventName, EventHandlerType>,
168    ) -> Self {
169        *self.get_event_handlers() = event_handlers;
170        self
171    }
172
173    event_handlers! {
174        Mouse,
175        MouseEventData;
176
177        mouse_down => EventName::MouseDown;
178        mouse_up => EventName::MouseUp;
179        mouse_move => EventName::MouseMove;
180
181    }
182
183    event_handlers! {
184        Pointer,
185        PointerEventData;
186
187        global_pointer_press => EventName::GlobalPointerPress;
188        global_pointer_down => EventName::GlobalPointerDown;
189        global_pointer_move => EventName::GlobalPointerMove;
190
191        capture_global_pointer_move => EventName::CaptureGlobalPointerMove;
192        capture_global_pointer_press => EventName::CaptureGlobalPointerPress;
193    }
194
195    event_handlers! {
196        Keyboard,
197        KeyboardEventData;
198
199        key_down => EventName::KeyDown;
200        key_up => EventName::KeyUp;
201
202        global_key_down => EventName::GlobalKeyDown;
203        global_key_up => EventName::GlobalKeyUp;
204    }
205
206    event_handlers! {
207        Wheel,
208        WheelEventData;
209
210        wheel => EventName::Wheel;
211    }
212
213    event_handlers! {
214        Touch,
215        TouchEventData;
216
217        touch_cancel => EventName::TouchCancel;
218        touch_start => EventName::TouchStart;
219        touch_move => EventName::TouchMove;
220        touch_end => EventName::TouchEnd;
221    }
222
223    event_handlers! {
224        Pointer,
225        PointerEventData;
226
227        pointer_press => EventName::PointerPress;
228        pointer_down => EventName::PointerDown;
229        pointer_enter => EventName::PointerEnter;
230        pointer_leave => EventName::PointerLeave;
231        pointer_over => EventName::PointerOver;
232        pointer_out => EventName::PointerOut;
233    }
234
235    event_handlers! {
236        File,
237        FileEventData;
238
239        file_drop => EventName::FileDrop;
240        global_file_hover => EventName::GlobalFileHover;
241        global_file_hover_cancelled => EventName::GlobalFileHoverCancelled;
242    }
243
244    event_handlers! {
245        ImePreedit,
246        ImePreeditEventData;
247
248        ime_preedit => EventName::ImePreedit;
249    }
250
251    fn on_sized(mut self, on_sized: impl Into<EventHandler<Event<SizedEventData>>>) -> Self
252    where
253        Self: LayoutExt,
254    {
255        self.get_event_handlers()
256            .insert(EventName::Sized, EventHandlerType::Sized(on_sized.into()));
257        self.get_layout().layout.has_layout_references = true;
258        self
259    }
260
261    /// This is generally the best event in which to run "press" logic, this might be called `onClick`, `onActivate`, or `onConnect` in other platforms.
262    ///
263    /// Gets triggered when:
264    /// - **Click**: There is a `MouseUp` event (Left button) with the in the same element that there had been a `MouseDown` just before
265    /// - **Touched**: There is a `TouchEnd` event in the same element that there had been a `TouchStart` just before
266    /// - **Activated**: The element is focused and there is a keydown event pressing the OS activation key (e.g Space, Enter)
267    fn on_press(self, on_press: impl Into<EventHandler<Event<PressEventData>>>) -> Self {
268        let on_press = on_press.into();
269        self.on_pointer_press({
270            let on_press = on_press.clone();
271            move |e: Event<PointerEventData>| {
272                let event = e.try_map(|d| match d {
273                    PointerEventData::Mouse(m) if m.button == Some(MouseButton::Left) => {
274                        Some(PressEventData::Mouse(m))
275                    }
276                    PointerEventData::Touch(t) => Some(PressEventData::Touch(t)),
277                    _ => None,
278                });
279                if let Some(event) = event {
280                    on_press.call(event);
281                }
282            }
283        })
284        .on_key_down(move |e: Event<KeyboardEventData>| {
285            if Focus::is_pressed(&e) {
286                on_press.call(e.map(PressEventData::Keyboard))
287            }
288        })
289    }
290
291    /// Also called the context menu click in other platforms.
292    /// Gets triggered when:
293    /// - **Click**: There is a `MouseUp` (Right button) event in the same element that there had been a `MouseDown` just before
294    fn on_secondary_press(
295        self,
296        on_pointer_press: impl Into<EventHandler<Event<PressEventData>>>,
297    ) -> Self {
298        let on_pointer_press = on_pointer_press.into();
299        self.on_pointer_press(move |e: Event<PointerEventData>| {
300            let event = e.try_map(|d| match d {
301                PointerEventData::Mouse(m) if m.button == Some(MouseButton::Right) => {
302                    Some(PressEventData::Mouse(m))
303                }
304                _ => None,
305            });
306            if let Some(event) = event {
307                on_pointer_press.call(event);
308            }
309        })
310    }
311
312    /// Gets triggered when:
313    /// - **Click**: There is a `MouseUp` event (Any button) with the in the same element that there had been a `MouseDown` just before
314    /// - **Touched**: There is a `TouchEnd` event in the same element that there had been a `TouchStart` just before
315    /// - **Activated**: The element is focused and there is a keydown event pressing the OS activation key (e.g Space, Enter)
316    fn on_all_press(self, on_press: impl Into<EventHandler<Event<PressEventData>>>) -> Self {
317        let on_press = on_press.into();
318        self.on_pointer_press({
319            let on_press = on_press.clone();
320            move |e: Event<PointerEventData>| {
321                let event = e.try_map(|d| match d {
322                    PointerEventData::Mouse(m) => Some(PressEventData::Mouse(m)),
323                    PointerEventData::Touch(t) => Some(PressEventData::Touch(t)),
324                });
325                if let Some(event) = event {
326                    on_press.call(event);
327                }
328            }
329        })
330        .on_key_down(move |e: Event<KeyboardEventData>| {
331            if Focus::is_pressed(&e) {
332                on_press.call(e.map(PressEventData::Keyboard))
333            }
334        })
335    }
336}
337
338#[derive(Debug, Clone, PartialEq)]
339pub enum PressEventData {
340    Mouse(MouseEventData),
341    Keyboard(KeyboardEventData),
342    Touch(TouchEventData),
343}
344
345pub trait ContainerWithContentExt
346where
347    Self: LayoutExt,
348{
349    fn direction(mut self, direction: Direction) -> Self {
350        self.get_layout().layout.direction = direction;
351        self
352    }
353    fn main_align(mut self, main_align: Alignment) -> Self {
354        self.get_layout().layout.main_alignment = main_align;
355        self
356    }
357
358    fn cross_align(mut self, cross_align: Alignment) -> Self {
359        self.get_layout().layout.cross_alignment = cross_align;
360        self
361    }
362
363    fn spacing(mut self, spacing: impl Into<f32>) -> Self {
364        self.get_layout().layout.spacing = Length::new(spacing.into());
365        self
366    }
367
368    fn content(mut self, content: Content) -> Self {
369        self.get_layout().layout.content = content;
370        self
371    }
372    fn center(mut self) -> Self {
373        self.get_layout().layout.main_alignment = Alignment::Center;
374        self.get_layout().layout.cross_alignment = Alignment::Center;
375
376        self
377    }
378
379    fn offset_x(mut self, offset_x: impl Into<f32>) -> Self {
380        self.get_layout().layout.offset_x = Length::new(offset_x.into());
381        self
382    }
383
384    fn offset_y(mut self, offset_y: impl Into<f32>) -> Self {
385        self.get_layout().layout.offset_y = Length::new(offset_y.into());
386        self
387    }
388
389    fn vertical(mut self) -> Self {
390        self.get_layout().layout.direction = Direction::vertical();
391        self
392    }
393
394    fn horizontal(mut self) -> Self {
395        self.get_layout().layout.direction = Direction::horizontal();
396        self
397    }
398}
399
400pub trait ContainerSizeExt
401where
402    Self: LayoutExt,
403{
404    fn width(mut self, width: impl Into<Size>) -> Self {
405        self.get_layout().layout.width = width.into();
406        self
407    }
408
409    fn height(mut self, height: impl Into<Size>) -> Self {
410        self.get_layout().layout.height = height.into();
411        self
412    }
413
414    /// Expand both `width` and `height` using [Size::fill()].
415    fn expanded(mut self) -> Self {
416        self.get_layout().layout.width = Size::fill();
417        self.get_layout().layout.height = Size::fill();
418        self
419    }
420}
421
422impl<T: ContainerExt> ContainerSizeExt for T {}
423
424pub trait ContainerExt
425where
426    Self: LayoutExt,
427{
428    fn position(mut self, position: impl Into<Position>) -> Self {
429        self.get_layout().layout.position = position.into();
430        self
431    }
432
433    fn padding(mut self, padding: impl Into<Gaps>) -> Self {
434        self.get_layout().layout.padding = padding.into();
435        self
436    }
437
438    fn margin(mut self, margin: impl Into<Gaps>) -> Self {
439        self.get_layout().layout.margin = margin.into();
440        self
441    }
442
443    fn min_width(mut self, minimum_width: impl Into<Size>) -> Self {
444        self.get_layout().layout.minimum_width = minimum_width.into();
445        self
446    }
447
448    fn min_height(mut self, minimum_height: impl Into<Size>) -> Self {
449        self.get_layout().layout.minimum_height = minimum_height.into();
450        self
451    }
452
453    fn max_width(mut self, maximum_width: impl Into<Size>) -> Self {
454        self.get_layout().layout.maximum_width = maximum_width.into();
455        self
456    }
457
458    fn max_height(mut self, maximum_height: impl Into<Size>) -> Self {
459        self.get_layout().layout.maximum_height = maximum_height.into();
460        self
461    }
462
463    fn visible_width(mut self, visible_width: impl Into<VisibleSize>) -> Self {
464        self.get_layout().layout.visible_width = visible_width.into();
465        self
466    }
467
468    fn visible_height(mut self, visible_height: impl Into<VisibleSize>) -> Self {
469        self.get_layout().layout.visible_height = visible_height.into();
470        self
471    }
472}
473
474pub trait LayoutExt
475where
476    Self: Sized,
477{
478    fn get_layout(&mut self) -> &mut LayoutData;
479
480    fn layout(mut self, layout: LayoutData) -> Self {
481        *self.get_layout() = layout;
482        self
483    }
484}
485
486pub trait ImageExt
487where
488    Self: LayoutExt,
489{
490    fn get_image_data(&mut self) -> &mut ImageData;
491
492    fn image_data(mut self, image_data: ImageData) -> Self {
493        *self.get_image_data() = image_data;
494        self
495    }
496
497    fn sampling_mode(mut self, sampling_mode: SamplingMode) -> Self {
498        self.get_image_data().sampling_mode = sampling_mode;
499        self
500    }
501
502    fn aspect_ratio(mut self, aspect_ratio: AspectRatio) -> Self {
503        self.get_image_data().aspect_ratio = aspect_ratio;
504        self
505    }
506
507    fn image_cover(mut self, image_cover: ImageCover) -> Self {
508        self.get_image_data().image_cover = image_cover;
509        self
510    }
511}
512
513pub trait AccessibilityExt: Sized {
514    fn get_accessibility_data(&mut self) -> &mut AccessibilityData;
515
516    fn accessibility(mut self, accessibility: AccessibilityData) -> Self {
517        *self.get_accessibility_data() = accessibility;
518        self
519    }
520
521    fn a11y_id(mut self, a11y_id: impl Into<Option<AccessibilityId>>) -> Self {
522        self.get_accessibility_data().a11y_id = a11y_id.into();
523        self
524    }
525
526    fn a11y_focusable(mut self, a11y_focusable: impl Into<Focusable>) -> Self {
527        self.get_accessibility_data().a11y_focusable = a11y_focusable.into();
528        self
529    }
530
531    fn a11y_auto_focus(mut self, a11y_auto_focus: impl Into<bool>) -> Self {
532        self.get_accessibility_data().a11y_auto_focus = a11y_auto_focus.into();
533        self
534    }
535
536    fn a11y_member_of(mut self, a11y_member_of: impl Into<AccessibilityId>) -> Self {
537        self.get_accessibility_data()
538            .builder
539            .set_member_of(a11y_member_of.into());
540        self
541    }
542
543    fn a11y_role(mut self, a11y_role: impl Into<AccessibilityRole>) -> Self {
544        self.get_accessibility_data()
545            .builder
546            .set_role(a11y_role.into());
547        self
548    }
549
550    fn a11y_alt(mut self, value: impl Into<Box<str>>) -> Self {
551        self.get_accessibility_data().builder.set_label(value);
552        self
553    }
554
555    fn a11y_builder(mut self, with: impl FnOnce(&mut accesskit::Node)) -> Self {
556        with(&mut self.get_accessibility_data().builder);
557        self
558    }
559}
560
561pub trait TextStyleExt
562where
563    Self: Sized,
564{
565    fn get_text_style_data(&mut self) -> &mut TextStyleData;
566
567    fn text_style(mut self, data: TextStyleData) -> Self {
568        *self.get_text_style_data() = data;
569        self
570    }
571
572    fn color(mut self, color: impl Into<Color>) -> Self {
573        self.get_text_style_data().color = Some(color.into());
574        self
575    }
576
577    fn text_align(mut self, text_align: impl Into<TextAlign>) -> Self {
578        self.get_text_style_data().text_align = Some(text_align.into());
579        self
580    }
581
582    fn font_size(mut self, font_size: impl Into<FontSize>) -> Self {
583        self.get_text_style_data().font_size = Some(font_size.into());
584        self
585    }
586
587    fn font_family(mut self, font_family: impl Into<Cow<'static, str>>) -> Self {
588        self.get_text_style_data()
589            .font_families
590            .push(font_family.into());
591        self
592    }
593
594    fn font_slant(mut self, font_slant: impl Into<FontSlant>) -> Self {
595        self.get_text_style_data().font_slant = Some(font_slant.into());
596        self
597    }
598
599    fn font_weight(mut self, font_weight: impl Into<FontWeight>) -> Self {
600        self.get_text_style_data().font_weight = Some(font_weight.into());
601        self
602    }
603
604    fn font_width(mut self, font_width: impl Into<FontWidth>) -> Self {
605        self.get_text_style_data().font_width = Some(font_width.into());
606        self
607    }
608
609    fn text_height(mut self, text_height: impl Into<TextHeightBehavior>) -> Self {
610        self.get_text_style_data().text_height = Some(text_height.into());
611        self
612    }
613
614    fn text_overflow(mut self, text_overflow: impl Into<TextOverflow>) -> Self {
615        self.get_text_style_data().text_overflow = Some(text_overflow.into());
616        self
617    }
618
619    fn text_shadow(mut self, text_shadow: impl Into<TextShadow>) -> Self {
620        self.get_text_style_data()
621            .text_shadows
622            .push(text_shadow.into());
623        self
624    }
625
626    fn text_decoration(mut self, text_decoration: impl Into<TextDecoration>) -> Self {
627        self.get_text_style_data().text_decoration = Some(text_decoration.into());
628        self
629    }
630}
631
632pub trait StyleExt
633where
634    Self: Sized,
635{
636    fn get_style(&mut self) -> &mut StyleState;
637
638    fn background<S: Into<Color>>(mut self, background: S) -> Self {
639        self.get_style().background = Fill::Color(background.into());
640        self
641    }
642
643    fn background_conic_gradient<S: Into<ConicGradient>>(mut self, background: S) -> Self {
644        self.get_style().background = Fill::ConicGradient(Box::new(background.into()));
645        self
646    }
647
648    fn background_linear_gradient<S: Into<LinearGradient>>(mut self, background: S) -> Self {
649        self.get_style().background = Fill::LinearGradient(Box::new(background.into()));
650        self
651    }
652
653    fn background_radial_gradient<S: Into<RadialGradient>>(mut self, background: S) -> Self {
654        self.get_style().background = Fill::RadialGradient(Box::new(background.into()));
655        self
656    }
657
658    fn border(mut self, border: impl Into<Option<Border>>) -> Self {
659        if let Some(border) = border.into() {
660            self.get_style().borders.push(border);
661        }
662        self
663    }
664
665    fn shadow(mut self, shadow: impl Into<Shadow>) -> Self {
666        self.get_style().shadows.push(shadow.into());
667        self
668    }
669
670    fn corner_radius(mut self, corner_radius: impl Into<CornerRadius>) -> Self {
671        self.get_style().corner_radius = corner_radius.into();
672        self
673    }
674}
675
676impl<T: StyleExt> CornerRadiusExt for T {
677    fn with_corner_radius(mut self, corner_radius: f32) -> Self {
678        self.get_style().corner_radius = CornerRadius::new_all(corner_radius);
679        self
680    }
681}
682
683pub trait CornerRadiusExt: Sized {
684    fn with_corner_radius(self, corner_radius: f32) -> Self;
685
686    /// Shortcut for `corner_radius(0.)` - removes border radius.
687    fn rounded_none(self) -> Self {
688        self.with_corner_radius(0.)
689    }
690
691    /// Shortcut for `corner_radius(6.)` - default border radius.
692    fn rounded(self) -> Self {
693        self.with_corner_radius(6.)
694    }
695
696    /// Shortcut for `corner_radius(4.)` - small border radius.
697    fn rounded_sm(self) -> Self {
698        self.with_corner_radius(4.)
699    }
700
701    /// Shortcut for `corner_radius(6.)` - medium border radius.
702    fn rounded_md(self) -> Self {
703        self.with_corner_radius(6.)
704    }
705
706    /// Shortcut for `corner_radius(8.)` - large border radius.
707    fn rounded_lg(self) -> Self {
708        self.with_corner_radius(8.)
709    }
710
711    /// Shortcut for `corner_radius(12.)` - extra large border radius.
712    fn rounded_xl(self) -> Self {
713        self.with_corner_radius(12.)
714    }
715
716    /// Shortcut for `corner_radius(16.)` - extra large border radius.
717    fn rounded_2xl(self) -> Self {
718        self.with_corner_radius(16.)
719    }
720
721    /// Shortcut for `corner_radius(24.)` - extra large border radius.
722    fn rounded_3xl(self) -> Self {
723        self.with_corner_radius(24.)
724    }
725
726    /// Shortcut for `corner_radius(32.)` - extra large border radius.
727    fn rounded_4xl(self) -> Self {
728        self.with_corner_radius(32.)
729    }
730
731    /// Shortcut for `corner_radius(99.)` - fully rounded (pill shape).
732    fn rounded_full(self) -> Self {
733        self.with_corner_radius(99.)
734    }
735}
736
737pub trait MaybeExt
738where
739    Self: Sized,
740{
741    fn maybe(self, bool: impl Into<bool>, then: impl FnOnce(Self) -> Self) -> Self {
742        if bool.into() { then(self) } else { self }
743    }
744
745    fn map<T>(self, data: Option<T>, then: impl FnOnce(Self, T) -> Self) -> Self {
746        if let Some(data) = data {
747            then(self, data)
748        } else {
749            self
750        }
751    }
752}
753
754pub trait LayerExt
755where
756    Self: Sized,
757{
758    fn get_layer(&mut self) -> &mut Layer;
759
760    fn layer(mut self, layer: impl Into<Layer>) -> Self {
761        *self.get_layer() = layer.into();
762        self
763    }
764}
765
766pub trait ScrollableExt
767where
768    Self: Sized,
769{
770    fn get_effect(&mut self) -> &mut EffectData;
771
772    fn scrollable(mut self, scrollable: impl Into<bool>) -> Self {
773        self.get_effect().scrollable = scrollable.into();
774        self
775    }
776}
777
778pub trait InteractiveExt
779where
780    Self: Sized,
781{
782    fn get_effect(&mut self) -> &mut EffectData;
783
784    fn interactive(mut self, interactive: impl Into<Interactive>) -> Self {
785        self.get_effect().interactive = interactive.into();
786        self
787    }
788}
789
790pub trait EffectExt: Sized {
791    fn get_effect(&mut self) -> &mut EffectData;
792
793    fn effect(mut self, effect: EffectData) -> Self {
794        *self.get_effect() = effect;
795        self
796    }
797
798    fn overflow(mut self, overflow: impl Into<Overflow>) -> Self {
799        self.get_effect().overflow = overflow.into();
800        self
801    }
802
803    fn blur(mut self, blur: impl Into<f32>) -> Self {
804        self.get_effect().blur = Some(blur.into());
805        self
806    }
807
808    fn rotation(mut self, rotation: impl Into<f32>) -> Self {
809        self.get_effect().rotation = Some(rotation.into());
810        self
811    }
812
813    fn opacity(mut self, opacity: impl Into<f32>) -> Self {
814        self.get_effect().opacity = Some(opacity.into());
815        self
816    }
817
818    fn scale(mut self, scale: impl Into<Scale>) -> Self {
819        self.get_effect().scale = Some(scale.into());
820        self
821    }
822}