56 lines
1.8 KiB
Rust
56 lines
1.8 KiB
Rust
use crate::{prelude::*, winit::UiState};
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use std::time::{Duration, Instant};
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use winit::dpi::{LogicalPosition, LogicalSize};
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pub struct Selector;
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impl<W: 'static> WidgetAttr<W> for Selector {
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type Input = WidgetRef<TextEdit>;
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fn run(ui: &mut Ui, container: &WidgetRef<W>, id: Self::Input) {
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let container = container.clone();
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ui.register_event(
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&container.clone(),
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CursorSense::click_or_drag(),
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move |mut ctx| {
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let ui = ctx.ui;
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let region = ui.window_region(&id).unwrap();
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let id_pos = region.top_left;
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let container_pos = ui.window_region(&container).unwrap().top_left;
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ctx.data.cursor += container_pos - id_pos;
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ctx.data.size = region.size();
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select(ui, id.clone(), ctx.state, ctx.data);
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},
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);
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}
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}
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pub struct Selectable;
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impl WidgetAttr<TextEdit> for Selectable {
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type Input = ();
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fn run(ui: &mut Ui, id: &WidgetRef<TextEdit>, _: Self::Input) {
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let id = id.clone();
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ui.register_event(&id.clone(), CursorSense::click_or_drag(), move |ctx| {
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select(ctx.ui, id.clone(), ctx.state, ctx.data);
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});
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}
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}
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fn select(ui: &mut Ui, id: WidgetRef<TextEdit>, state: &mut UiState, data: CursorData) {
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let now = Instant::now();
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let recent = (now - state.last_click) < Duration::from_millis(300);
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state.last_click = now;
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id.get_mut()
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.select(data.cursor, data.size, data.sense.is_dragging(), recent);
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if let Some(region) = ui.window_region(&id) {
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state.window.set_ime_allowed(true);
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state.window.set_ime_cursor_area(
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LogicalPosition::<f32>::from(region.top_left.tuple()),
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LogicalSize::<f32>::from(region.size().tuple()),
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);
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}
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state.focus = Some(id);
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}
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