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Set default timeline mode based on activity

This commit is contained in:
Skyler Lehmkuhl 2026-03-20 21:05:00 -04:00
parent 121fa3a50a
commit 0d7f15853c
3 changed files with 50 additions and 30 deletions
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14
lightningbeam-ui/lightningbeam-core/src/document.rs
View File

@ -133,6 +133,15 @@ impl Default for TimeSignature {
fn default_bpm() -> f64 { 120.0 }
/// How time is displayed in the timeline
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize, Default)]
pub enum TimelineMode {
#[default]
Seconds,
Measures,
Frames,
}
/// Asset category for folder tree access
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum AssetCategory {
@ -226,6 +235,10 @@ pub struct Document {
#[serde(default)]
pub script_folders: AssetFolderTree,
/// How time is displayed in the timeline (saved with document)
#[serde(default)]
pub timeline_mode: TimelineMode,
/// Current UI layout state (serialized for save/load)
#[serde(default, skip_serializing_if = "Option::is_none")]
pub ui_layout: Option<LayoutNode>,
@ -270,6 +283,7 @@ impl Default for Document {
effect_folders: AssetFolderTree::new(),
script_definitions: HashMap::new(),
script_folders: AssetFolderTree::new(),
timeline_mode: TimelineMode::Seconds,
ui_layout: None,
ui_layout_base: None,
current_time: 0.0,

7
lightningbeam-ui/lightningbeam-editor/src/main.rs
View File

@ -1490,6 +1490,13 @@ impl EditorApp {
}
};
// Set default timeline mode based on activity
document.timeline_mode = match layout_index {
2 => lightningbeam_core::document::TimelineMode::Measures, // Music
1 => lightningbeam_core::document::TimelineMode::Seconds, // Video
_ => lightningbeam_core::document::TimelineMode::Frames, // Animation, Painting, etc.
};
// Reset action executor with new document
self.action_executor = lightningbeam_core::action::ActionExecutor::new(document);

59
lightningbeam-ui/lightningbeam-editor/src/panes/timeline.rs
View File

@ -136,13 +136,7 @@ enum ClipDragType {
LoopExtendLeft,
}
/// How time is displayed in the ruler and header
#[derive(Debug, Clone, Copy, PartialEq)]
enum TimeDisplayFormat {
Seconds,
Measures,
Frames,
}
use lightningbeam_core::document::TimelineMode;
/// State for an in-progress layer header drag-to-reorder operation.
struct LayerDragState {
@ -194,7 +188,7 @@ pub struct TimelinePane {
context_menu_clip: Option<(Option<uuid::Uuid>, egui::Pos2)>,
/// Whether to display time as seconds or measures
time_display_format: TimeDisplayFormat,
time_display_format: TimelineMode,
/// Waveform upload progress: pool_index -> frames uploaded so far.
/// Tracks chunked GPU uploads across frames to avoid hitches.
@ -673,7 +667,7 @@ impl TimelinePane {
mousedown_pos: None,
layer_control_clicked: false,
context_menu_clip: None,
time_display_format: TimeDisplayFormat::Seconds,
time_display_format: TimelineMode::Seconds,
waveform_upload_progress: std::collections::HashMap::new(),
video_thumbnail_textures: std::collections::HashMap::new(),
layer_drag: None,
@ -691,7 +685,7 @@ impl TimelinePane {
/// Returns true if the timeline is currently in Measures display mode.
pub fn is_measures_mode(&self) -> bool {
self.time_display_format == TimeDisplayFormat::Measures
self.time_display_format == TimelineMode::Measures
}
/// Execute a view action with the given parameters
@ -931,7 +925,7 @@ impl TimelinePane {
// Must happen before Step 4 so no clips or backend recordings are created yet.
if *shared.count_in_enabled
&& *shared.metronome_enabled
&& self.time_display_format == TimeDisplayFormat::Measures
&& self.time_display_format == TimelineMode::Measures
{
let (bpm, beats_per_measure) = {
let doc = shared.action_executor.document();
@ -1358,8 +1352,8 @@ impl TimelinePane {
framerate: f64,
) -> Option<f64> {
match self.time_display_format {
TimeDisplayFormat::Frames => Some(1.0 / framerate),
TimeDisplayFormat::Measures => {
TimelineMode::Frames => Some(1.0 / framerate),
TimelineMode::Measures => {
use lightningbeam_core::beat_time::{beat_duration, measure_duration};
let beat = beat_duration(bpm);
let measure = measure_duration(bpm, time_sig);
@ -1379,7 +1373,7 @@ impl TimelinePane {
}
Some(measure)
}
TimeDisplayFormat::Seconds => None,
TimelineMode::Seconds => None,
}
}
@ -1456,7 +1450,7 @@ impl TimelinePane {
let text_color = text_style.text_color.unwrap_or(egui::Color32::from_gray(200));
match self.time_display_format {
TimeDisplayFormat::Seconds => {
TimelineMode::Seconds => {
let interval = self.calculate_ruler_interval();
let start_time = (self.viewport_start_time / interval).floor() * interval;
let end_time = self.x_to_time(rect.width());
@ -1489,7 +1483,7 @@ impl TimelinePane {
time += interval;
}
}
TimeDisplayFormat::Measures => {
TimelineMode::Measures => {
let beats_per_second = bpm / 60.0;
let beat_dur = lightningbeam_core::beat_time::beat_duration(bpm);
let bpm_count = time_sig.numerator;
@ -1542,7 +1536,7 @@ impl TimelinePane {
}
}
}
TimeDisplayFormat::Frames => {
TimelineMode::Frames => {
let interval = self.calculate_ruler_interval_frames(framerate);
let start_frame = (self.viewport_start_time.max(0.0) * framerate).floor() as i64;
let end_frame = (self.x_to_time(rect.width()) * framerate).ceil() as i64;
@ -2580,7 +2574,7 @@ impl TimelinePane {
// Grid lines matching ruler
match self.time_display_format {
TimeDisplayFormat::Seconds => {
TimelineMode::Seconds => {
let interval = self.calculate_ruler_interval();
let start_time = (self.viewport_start_time / interval).floor() * interval;
let end_time = self.x_to_time(rect.width());
@ -2597,7 +2591,7 @@ impl TimelinePane {
time += interval;
}
}
TimeDisplayFormat::Measures => {
TimelineMode::Measures => {
let beats_per_second = document.bpm / 60.0;
let bpm_count = document.time_signature.numerator;
let start_beat = (self.viewport_start_time.max(0.0) * beats_per_second).floor() as i64;
@ -2615,7 +2609,7 @@ impl TimelinePane {
);
}
}
TimeDisplayFormat::Frames => {
TimelineMode::Frames => {
let framerate = document.framerate;
let px_per_frame = self.pixels_per_second / framerate as f32;
@ -4723,6 +4717,9 @@ impl TimelinePane {
impl PaneRenderer for TimelinePane {
fn render_header(&mut self, ui: &mut egui::Ui, shared: &mut SharedPaneState) -> bool {
// Sync timeline mode from document (document is source of truth)
self.time_display_format = shared.action_executor.document().timeline_mode;
// Fire deferred recording commands once count-in pre-roll has elapsed
self.check_pending_recording_start(shared);
@ -4823,7 +4820,7 @@ impl PaneRenderer for TimelinePane {
}
// Metronome toggle — only visible in Measures mode
if self.time_display_format == TimeDisplayFormat::Measures {
if self.time_display_format == TimelineMode::Measures {
ui.add_space(4.0);
let metro_tint = if *shared.metronome_enabled {
@ -4897,10 +4894,10 @@ impl PaneRenderer for TimelinePane {
};
match self.time_display_format {
TimeDisplayFormat::Seconds => {
TimelineMode::Seconds => {
ui.colored_label(text_color, format!("Time: {:.2}s / {:.2}s", *shared.playback_time, self.duration));
}
TimeDisplayFormat::Measures => {
TimelineMode::Measures => {
let time_sig = lightningbeam_core::document::TimeSignature { numerator: time_sig_num, denominator: time_sig_den };
let pos = lightningbeam_core::beat_time::time_to_measure(
*shared.playback_time, bpm, &time_sig,
@ -4911,7 +4908,7 @@ impl PaneRenderer for TimelinePane {
time_sig_num, time_sig_den,
));
}
TimeDisplayFormat::Frames => {
TimelineMode::Frames => {
let current_frame = (*shared.playback_time * framerate).floor() as i64 + 1;
let total_frames = (self.duration * framerate).ceil() as i64;
ui.colored_label(text_color, format!(
@ -4930,16 +4927,18 @@ impl PaneRenderer for TimelinePane {
// Time display format toggle
egui::ComboBox::from_id_salt("time_format")
.selected_text(match self.time_display_format {
TimeDisplayFormat::Seconds => "Seconds",
TimeDisplayFormat::Measures => "Measures",
TimeDisplayFormat::Frames => "Frames",
TimelineMode::Seconds => "Seconds",
TimelineMode::Measures => "Measures",
TimelineMode::Frames => "Frames",
})
.width(80.0)
.show_ui(ui, |ui| {
ui.selectable_value(&mut self.time_display_format, TimeDisplayFormat::Seconds, "Seconds");
ui.selectable_value(&mut self.time_display_format, TimeDisplayFormat::Measures, "Measures");
ui.selectable_value(&mut self.time_display_format, TimeDisplayFormat::Frames, "Frames");
ui.selectable_value(&mut self.time_display_format, TimelineMode::Seconds, "Seconds");
ui.selectable_value(&mut self.time_display_format, TimelineMode::Measures, "Measures");
ui.selectable_value(&mut self.time_display_format, TimelineMode::Frames, "Frames");
});
// Write change back to document so it persists and is the source of truth
shared.action_executor.document_mut().timeline_mode = self.time_display_format;
ui.separator();