StratoSDK is a framework with a declarative approach similar to Flutter/React, written and designed entirely for Rust.
| 1 | use strato_ui::color::ColorU; |
| 2 | use strato_ui::elements::shimmering_text::{ |
| 3 | ShimmerConfig, ShimmeringTextElement, ShimmeringTextStateHandle, |
| 4 | }; |
| 5 | use strato_ui::elements::{Align, ConstrainedBox, ParentElement, Rect, Stack}; |
| 6 | use strato_ui::fonts::FamilyId; |
| 7 | use strato_ui::SingletonEntity as _; |
| 8 | use strato_ui::{AppContext, Element, Entity, TypedActionView, View, ViewContext}; |
| 9 | |
| 10 | pub struct RootView { |
| 11 | text: String, |
| 12 | font_family: FamilyId, |
| 13 | font_size: f32, |
| 14 | start: ColorU, |
| 15 | end: ColorU, |
| 16 | config: ShimmerConfig, |
| 17 | |
| 18 | // Persist the animation/layout state across renders. |
| 19 | shimmering_text_handle: ShimmeringTextStateHandle, |
| 20 | } |
| 21 | |
| 22 | impl RootView { |
| 23 | pub fn new(ctx: &mut ViewContext<Self>) -> Self { |
| 24 | let font_family = strato_ui::fonts::Cache::handle(ctx).update(ctx, |cache, _| { |
| 25 | cache |
| 26 | .load_system_font("Times") |
| 27 | .or_else(|_| cache.load_system_font("Arial")) |
| 28 | .expect("Should load a system font") |
| 29 | }); |
| 30 | |
| 31 | // Treat start/end as the dim → bright endpoints. |
| 32 | let start = ColorU::new(160, 160, 160, 255); |
| 33 | let end = ColorU::new(255, 255, 255, 255); |
| 34 | |
| 35 | Self { |
| 36 | text: "Warp shimmer: 👩💻with ligatures — fi fl 🇺🇸".to_string(), |
| 37 | font_family, |
| 38 | font_size: 28.0, |
| 39 | start, |
| 40 | end, |
| 41 | config: ShimmerConfig::default(), |
| 42 | shimmering_text_handle: ShimmeringTextStateHandle::new(), |
| 43 | } |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | impl Entity for RootView { |
| 48 | type Event = (); |
| 49 | } |
| 50 | |
| 51 | impl View for RootView { |
| 52 | fn ui_name() -> &'static str { |
| 53 | "AnimatedGradientText" |
| 54 | } |
| 55 | |
| 56 | fn render(&self, _: &AppContext) -> Box<dyn Element> { |
| 57 | let shimmering = ShimmeringTextElement::new( |
| 58 | self.text.clone(), |
| 59 | self.font_family, |
| 60 | self.font_size, |
| 61 | self.start, |
| 62 | self.end, |
| 63 | self.config, |
| 64 | self.shimmering_text_handle.clone(), |
| 65 | ) |
| 66 | .finish(); |
| 67 | |
| 68 | Stack::new() |
| 69 | .with_child(Rect::new().with_background_color(ColorU::black()).finish()) |
| 70 | .with_child( |
| 71 | Align::new( |
| 72 | ConstrainedBox::new(shimmering) |
| 73 | .with_max_width(900.) |
| 74 | .finish(), |
| 75 | ) |
| 76 | .finish(), |
| 77 | ) |
| 78 | .finish() |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | impl TypedActionView for RootView { |
| 83 | type Action = (); |
| 84 | } |
| 85 |