219 lines
9 KiB
Rust
219 lines
9 KiB
Rust
use crate::platform;
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use std::rc::Rc;
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use wellen::GetItem;
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use zoon::*;
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mod pixi_canvas;
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use pixi_canvas::{PixiCanvas, PixiController};
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const ROW_HEIGHT: u32 = 40;
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const ROW_GAP: u32 = 4;
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#[derive(Clone)]
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pub struct WaveformPanel {
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selected_var_refs: MutableVec<wellen::VarRef>,
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hierarchy: Mutable<Option<Rc<wellen::Hierarchy>>>,
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canvas_controller: Mutable<ReadOnlyMutable<Option<PixiController>>>,
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}
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impl WaveformPanel {
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pub fn new(
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hierarchy: Mutable<Option<Rc<wellen::Hierarchy>>>,
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selected_var_refs: MutableVec<wellen::VarRef>,
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) -> impl Element {
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Self {
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selected_var_refs,
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hierarchy,
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canvas_controller: Mutable::new(Mutable::default().read_only()),
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}
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.root()
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}
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// @TODO autoscroll down
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fn root(&self) -> impl Element {
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let selected_vars_panel_height_getter: Mutable<u32> = <_>::default();
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Row::new()
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.s(Padding::all(20))
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.s(Scrollbars::y_and_clip_x())
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.s(Width::growable())
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.s(Height::fill())
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.item(self.selected_vars_panel(selected_vars_panel_height_getter.clone()))
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.item(self.canvas(selected_vars_panel_height_getter.read_only()))
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}
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fn selected_vars_panel(&self, height_getter: Mutable<u32>) -> impl Element {
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Column::new()
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.s(Gap::new().y(ROW_GAP))
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.s(Align::new().top())
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.on_viewport_size_change(move |_, height| height_getter.set_neq(height))
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.items_signal_vec(self.selected_var_refs.signal_vec().enumerate().map(
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clone!((self => s) move |(index, var_ref)| {
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s.selected_var_panel(index, var_ref)
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}),
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))
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}
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fn canvas(&self, selected_vars_panel_height: ReadOnlyMutable<u32>) -> impl Element {
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let selected_var_refs = self.selected_var_refs.clone();
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let hierarchy = self.hierarchy.clone();
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let canvas_controller = self.canvas_controller.clone();
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PixiCanvas::new(ROW_HEIGHT, ROW_GAP)
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.s(Align::new().top())
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.s(Width::fill())
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.s(Height::exact_signal(selected_vars_panel_height.signal()))
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.task_with_controller(move |controller| {
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canvas_controller.set(controller.clone());
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selected_var_refs.signal_vec().delay_remove(clone!((hierarchy) move |var_ref| {
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clone!((var_ref, hierarchy) async move {
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if let Some(hierarchy) = hierarchy.get_cloned() {
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// @TODO unload only when no other selected variable use it?
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platform::unload_signal(hierarchy.get(var_ref).signal_ref()).await;
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}
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})
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})).for_each(clone!((controller, hierarchy) move |vec_diff| {
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clone!((controller, hierarchy) async move {
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match vec_diff {
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VecDiff::Replace { values } => {
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let controller = controller.wait_for_some_cloned().await;
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controller.clear_vars();
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for var_ref in values {
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Self::push_var(&controller, &hierarchy, var_ref).await;
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}
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},
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VecDiff::InsertAt { index: _, value: _ } => { todo!("`task_with_controller` + `InsertAt`") }
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VecDiff::UpdateAt { index: _, value: _ } => { todo!("`task_with_controller` + `UpdateAt`") }
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VecDiff::RemoveAt { index } => {
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if let Some(controller) = controller.lock_ref().as_ref() {
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controller.remove_var(index);
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}
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}
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VecDiff::Move { old_index: _, new_index: _ } => { todo!("`task_with_controller` + `Move`") }
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VecDiff::Push { value: var_ref } => {
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if let Some(controller) = controller.lock_ref().as_ref() {
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Self::push_var(controller, &hierarchy, var_ref).await;
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}
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}
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VecDiff::Pop {} => {
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if let Some(controller) = controller.lock_ref().as_ref() {
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controller.pop_var();
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}
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}
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VecDiff::Clear {} => {
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if let Some(controller) = controller.lock_ref().as_ref() {
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controller.clear_vars();
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}
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}
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}
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})
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}))
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})
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}
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async fn push_var(
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controller: &PixiController,
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hierarchy: &Mutable<Option<Rc<wellen::Hierarchy>>>,
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var_ref: wellen::VarRef,
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) {
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let hierarchy = hierarchy.get_cloned().unwrap();
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let var_format = shared::VarFormat::default();
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let var = hierarchy.get(var_ref);
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let signal_ref = var.signal_ref();
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let timeline = platform::load_signal_and_get_timeline(
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signal_ref,
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controller.get_timeline_zoom(),
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controller.get_timeline_viewport_width(),
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controller.get_timeline_viewport_x(),
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ROW_HEIGHT,
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var_format,
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)
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.await;
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// @TODO render timeline with time units
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// let timescale = hierarchy.timescale();
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// Note: Sync `timeline`'s type with the `Timeline` in `frontend/typescript/pixi_canvas/pixi_canvas.ts'
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let timeline = serde_wasm_bindgen::to_value(&timeline).unwrap_throw();
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let signal_ref_index = signal_ref.index();
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let var_format = serde_wasm_bindgen::to_value(&var_format).unwrap_throw();
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controller.push_var(signal_ref_index, timeline, var_format);
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}
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fn selected_var_panel(
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&self,
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index: ReadOnlyMutable<Option<usize>>,
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var_ref: wellen::VarRef,
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) -> Option<impl Element> {
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let Some(hierarchy) = self.hierarchy.get_cloned() else {
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None?
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};
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let var = hierarchy.get(var_ref);
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Row::new()
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.item(self.selected_var_name_button(var.name(&hierarchy), index.clone()))
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.item(self.selected_var_format_button(index))
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.apply(Some)
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}
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fn selected_var_name_button(
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&self,
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name: &str,
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index: ReadOnlyMutable<Option<usize>>,
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) -> impl Element {
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let selected_var_refs = self.selected_var_refs.clone();
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let (hovered, hovered_signal) = Mutable::new_and_signal(false);
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Button::new()
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.s(Height::exact(ROW_HEIGHT))
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.s(Width::growable())
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.s(Background::new().color_signal(
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hovered_signal.map_bool(|| color!("SlateBlue"), || color!("SlateBlue", 0.8)),
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))
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.s(RoundedCorners::new().left(15).right(5))
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.label(
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El::new()
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.s(Align::new().left())
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.s(Padding::new().left(20).right(17).y(10))
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.child(name),
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)
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.on_hovered_change(move |is_hovered| hovered.set_neq(is_hovered))
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.on_press(move || {
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if let Some(index) = index.get() {
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selected_var_refs.lock_mut().remove(index);
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}
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})
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}
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fn selected_var_format_button(&self, index: ReadOnlyMutable<Option<usize>>) -> impl Element {
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let var_format = Mutable::new(shared::VarFormat::default());
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let (hovered, hovered_signal) = Mutable::new_and_signal(false);
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let canvas_controller = self.canvas_controller.clone();
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Button::new()
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.s(Height::exact(ROW_HEIGHT))
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.s(Width::exact(70))
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.s(Background::new().color_signal(
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hovered_signal.map_bool(|| color!("SlateBlue"), || color!("SlateBlue", 0.8)),
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))
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.s(RoundedCorners::new().left(5))
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.label(
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El::new()
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.s(Align::center())
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.s(Padding::new().left(20).right(17).y(10))
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.child_signal(var_format.signal().map(|format| format.as_static_str())),
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)
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.on_hovered_change(move |is_hovered| hovered.set_neq(is_hovered))
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.on_press(move || {
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let next_format = var_format.get().next();
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var_format.set(next_format);
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if let Some(canvas_controller) = canvas_controller.get_cloned().lock_ref().as_ref()
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{
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if let Some(index) = index.get() {
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canvas_controller.set_var_format(
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index,
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serde_wasm_bindgen::to_value(&next_format).unwrap_throw(),
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);
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}
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}
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})
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}
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}
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