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//! The DAW session lens: timeline, mixer, and plugin rack.
//!
//! The lens reads the existing `DawSession` model -- no second model -- and
//! renders a `scene/timeline` arrangement, mixer strips with `scene/meter`
//! meters and gain `scene/slider`s, and a plugin rack per track. Everything is
//! driven by Intents (scrub/set-param/invoke) committed via `realize`.
use sim_kernel::Expr;
use sim_lib_daw_session::{DawSession, DawTrack, instrument_session_render_smoke_command};
use sim_lib_scene::{data_map, node, sym};
use sim_value::build::uint;
/// The DAW session lens id.
pub const DAW_LENS: &str = "view:daw-timeline";
/// Render a DAW session into its lens Scene.
pub fn daw_view(session: &DawSession) -> Expr {
node(
"stack",
vec![
("role", sym("daw")),
("dir", sym("column")),
(
"children",
Expr::List(vec![
transport_bar(session),
timeline(session),
mixer(session),
integration_panel(session),
]),
),
],
)
}
fn transport_bar(session: &DawSession) -> Expr {
let transport = session.transport();
node(
"box",
vec![
("role", sym("transport")),
(
"children",
Expr::List(vec![
node(
"text",
vec![(
"text",
Expr::String(format!("{:.1} bpm", transport.tempo_bpm())),
)],
),
node(
"badge",
vec![
(
"status",
sym(if transport.playing() {
"running"
} else {
"idle"
}),
),
(
"label",
Expr::String(
if transport.playing() {
"playing"
} else {
"stopped"
}
.to_owned(),
),
),
],
),
node(
"meter",
vec![
("label", sym("position")),
("value", uint(transport.sample_pos())),
],
),
]),
),
],
)
}
fn timeline(session: &DawSession) -> Expr {
let lanes = session
.tracks()
.iter()
.map(|track| {
let clips = track
.clips()
.iter()
.map(|clip| {
data_map(vec![
("id", Expr::Symbol(clip.id().clone())),
("at", uint(clip.start_frame())),
("len", uint(clip.frames())),
])
})
.collect();
data_map(vec![
("track", Expr::Symbol(track.id().clone())),
("name", Expr::String(track.name().to_owned())),
("clips", Expr::List(clips)),
])
})
.collect();
node("timeline", vec![("lanes", Expr::List(lanes))])
}
fn mixer(session: &DawSession) -> Expr {
let strips = session.tracks().iter().map(strip).collect();
node(
"stack",
vec![
("role", sym("mixer")),
("dir", sym("row")),
("children", Expr::List(strips)),
],
)
}
fn strip(track: &DawTrack) -> Expr {
node(
"box",
vec![
("role", sym("strip")),
(
"children",
Expr::List(vec![
node(
"text",
vec![("text", Expr::String(track.name().to_owned()))],
),
node(
"slider",
vec![
("param", sym("gain")),
("min", number(0.0)),
("max", number(1.0)),
("value", number(0.8)),
],
),
node(
"meter",
vec![("label", sym("level")), ("value", number(0.0))],
),
mute_solo(track),
plugin_rack(track),
]),
),
],
)
}
fn mute_solo(track: &DawTrack) -> Expr {
node(
"stack",
vec![
("role", sym("mute-solo")),
("dir", sym("row")),
(
"children",
Expr::List(vec![
node(
"badge",
vec![
(
"status",
sym(if track.is_muted() { "warn" } else { "idle" }),
),
("label", Expr::String("mute".to_owned())),
],
),
node(
"badge",
vec![
("status", sym(if track.is_solo() { "ok" } else { "idle" })),
("label", Expr::String("solo".to_owned())),
],
),
]),
),
],
)
}
fn plugin_rack(track: &DawTrack) -> Expr {
let slots = track
.plugin_chain()
.slots()
.iter()
.map(|slot| {
node(
"box",
vec![
("role", sym("plugin")),
(
"children",
Expr::List(vec![
node("text", vec![("text", Expr::String(slot.id().to_string()))]),
node(
"badge",
vec![
(
"status",
sym(if slot.is_bypassed() { "warn" } else { "ok" }),
),
(
"label",
Expr::String(
if slot.is_bypassed() {
"bypassed"
} else {
"active"
}
.to_owned(),
),
),
],
),
]),
),
],
)
})
.collect();
node(
"stack",
vec![
("role", sym("rack")),
("dir", sym("column")),
("children", Expr::List(slots)),
],
)
}
fn integration_panel(session: &DawSession) -> Expr {
node(
"stack",
vec![
("role", sym("instrument-integration")),
("dir", sym("column")),
(
"children",
Expr::List(vec![
node(
"table",
vec![
("role", sym("instrument-instances")),
(
"rows",
Expr::List(
session
.instrument_instances()
.iter()
.map(|instrument| {
data_map(vec![
("id", Expr::Symbol(instrument.id().clone())),
(
"instrument-kind",
sym(instrument.kind().as_str()),
),
(
"node",
Expr::String(
instrument.graph_node_id().to_owned(),
),
),
(
"fixture",
Expr::String(
instrument.patch_fixture().to_owned(),
),
),
])
})
.collect(),
),
),
],
),
node(
"table",
vec![
("role", sym("instrument-route-matrix")),
(
"rows",
Expr::List(
session
.routes()
.iter()
.map(|route| {
data_map(vec![
("route-kind", sym(route.kind().as_str())),
("source", Expr::Symbol(route.source().clone())),
(
"node",
Expr::String(route.target_node_id().to_owned()),
),
("target", Expr::Symbol(route.target().clone())),
])
})
.collect(),
),
),
],
),
node(
"text",
vec![
("role", sym("render-smoke-command")),
(
"text",
Expr::String(instrument_session_render_smoke_command().to_owned()),
),
],
),
]),
),
],
)
}
use sim_value::build::float as number;