FastWave2.0/frontend/src/waveform_panel.rs
2024-06-17 07:48:15 +02:00

219 lines
9 KiB
Rust

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