Files
galaxy/crates/warpui/examples/scrolling/root_view.rs
T

85 lines
2.5 KiB
Rust

use warpui::elements::ClippedScrollStateHandle;
use warpui::elements::ClippedScrollable;
use warpui::{
elements::{ConstrainedBox, Container, Flex, ParentElement, Rect, ScrollbarWidth, Stack},
AppContext, Element, Entity, TypedActionView, View, ViewContext,
};
use warpui::color::ColorU;
#[derive(Default)]
pub struct RootView {
pub clipped_scroll_state: ClippedScrollStateHandle,
}
impl RootView {
pub fn new(_ctx: &mut ViewContext<Self>) -> Self {
RootView::default()
}
}
impl Entity for RootView {
type Event = ();
}
impl View for RootView {
fn ui_name() -> &'static str {
"RootView"
}
fn render(&self, _: &AppContext) -> Box<dyn Element> {
let mut column = Flex::column();
// Create 10 rows, where each row has 10 rectanges (each of size 50*50).
// By the end, `column` will be 500 * 500.
for i in 0..10 {
let mut row = Flex::row();
for j in 0..10 {
let color = (i + j) % 3;
let color = if color == 0 {
ColorU::new(255, 0, 0, 255)
} else if color == 1 {
ColorU::new(0, 255, 0, 255)
} else {
ColorU::new(0, 0, 255, 255)
};
row.add_child(
Container::new(
ConstrainedBox::new(Rect::new().finish())
.with_height(50.)
.with_width(50.)
.finish(),
)
.with_background_color(color)
.finish(),
);
}
column.add_child(row.finish());
}
// Change this to [`ClippedScrollable::vertical`] to see what a vertically scrollable element looks like.
let horizontally_scrollable = ClippedScrollable::horizontal(
self.clipped_scroll_state.clone(),
column.finish(),
ScrollbarWidth::Auto,
ColorU::white().into(),
ColorU::white().into(),
ColorU::new(100, 100, 100, 255).into(),
);
let constrained = ConstrainedBox::new(horizontally_scrollable.finish())
.with_height(250.)
.with_width(250.);
Stack::new()
.with_child(Rect::new().with_background_color(ColorU::black()).finish())
.with_child(constrained.finish())
.finish()
}
}
impl TypedActionView for RootView {
type Action = ();
}