1387 lines
61 KiB
Rust
1387 lines
61 KiB
Rust
/// Timeline pane - Modern GarageBand-style timeline
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///
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/// Phase 1 Implementation: Time Ruler & Playhead
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/// - Time-based ruler (seconds, not frames)
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/// - Playhead for current time
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/// - Zoom/pan controls
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/// - Basic layer visualization
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use eframe::egui;
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use super::{NodePath, PaneRenderer, SharedPaneState};
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const RULER_HEIGHT: f32 = 30.0;
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const LAYER_HEIGHT: f32 = 60.0;
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const LAYER_HEADER_WIDTH: f32 = 200.0;
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const MIN_PIXELS_PER_SECOND: f32 = 20.0;
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const MAX_PIXELS_PER_SECOND: f32 = 500.0;
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const EDGE_DETECTION_PIXELS: f32 = 8.0; // Distance from edge to detect trim handles
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/// Type of clip drag operation
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#[derive(Debug, Clone, Copy, PartialEq)]
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enum ClipDragType {
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Move,
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TrimLeft,
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TrimRight,
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}
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pub struct TimelinePane {
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/// Current playback time in seconds
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current_time: f64,
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/// Horizontal zoom level (pixels per second)
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pixels_per_second: f32,
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/// Horizontal scroll offset (in seconds)
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viewport_start_time: f64,
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/// Vertical scroll offset (in pixels)
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viewport_scroll_y: f32,
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/// Total duration of the animation
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duration: f64,
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/// Is the user currently dragging the playhead?
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is_scrubbing: bool,
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/// Is the user panning the timeline?
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is_panning: bool,
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last_pan_pos: Option<egui::Pos2>,
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/// Clip drag state (None if not dragging)
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clip_drag_state: Option<ClipDragType>,
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drag_offset: f64, // Time offset being applied during drag (for preview)
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/// Cached mouse position from mousedown (used for edge detection when drag starts)
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mousedown_pos: Option<egui::Pos2>,
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/// Is playback currently active?
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is_playing: bool,
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}
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impl TimelinePane {
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pub fn new() -> Self {
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Self {
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current_time: 0.0,
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pixels_per_second: 100.0,
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viewport_start_time: 0.0,
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viewport_scroll_y: 0.0,
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duration: 10.0, // Default 10 seconds
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is_scrubbing: false,
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is_panning: false,
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last_pan_pos: None,
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clip_drag_state: None,
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drag_offset: 0.0,
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mousedown_pos: None,
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is_playing: false,
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}
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}
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/// Execute a view action with the given parameters
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/// Called from main.rs after determining this is the best handler
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pub fn execute_view_action(&mut self, action: &crate::menu::MenuAction, zoom_center: egui::Vec2) {
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use crate::menu::MenuAction;
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match action {
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MenuAction::ZoomIn => self.zoom_in(zoom_center.x),
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MenuAction::ZoomOut => self.zoom_out(zoom_center.x),
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MenuAction::ActualSize => self.actual_size(),
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MenuAction::RecenterView => self.recenter(),
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_ => {} // Not a view action we handle
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}
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}
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/// Detect which clip is under the pointer and what type of drag would occur
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///
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/// Returns (drag_type, clip_id) if pointer is over a clip, None otherwise
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fn detect_clip_at_pointer(
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&self,
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pointer_pos: egui::Pos2,
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document: &lightningbeam_core::document::Document,
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content_rect: egui::Rect,
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header_rect: egui::Rect,
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) -> Option<(ClipDragType, uuid::Uuid)> {
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let layer_count = document.root.children.len();
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// Check if pointer is in valid area
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if pointer_pos.y < header_rect.min.y {
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return None;
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}
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if pointer_pos.x < content_rect.min.x {
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return None;
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}
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let hover_time = self.x_to_time(pointer_pos.x - content_rect.min.x);
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let relative_y = pointer_pos.y - header_rect.min.y + self.viewport_scroll_y;
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let hovered_layer_index = (relative_y / LAYER_HEIGHT) as usize;
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if hovered_layer_index >= layer_count {
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return None;
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}
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let layers: Vec<_> = document.root.children.iter().rev().collect();
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let layer = layers.get(hovered_layer_index)?;
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let layer_data = layer.layer();
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let clip_instances = match layer {
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lightningbeam_core::layer::AnyLayer::Vector(vl) => &vl.clip_instances,
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lightningbeam_core::layer::AnyLayer::Audio(al) => &al.clip_instances,
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lightningbeam_core::layer::AnyLayer::Video(vl) => &vl.clip_instances,
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};
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// Check each clip instance
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for clip_instance in clip_instances {
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let clip_duration = match layer {
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lightningbeam_core::layer::AnyLayer::Vector(_) => {
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document.get_vector_clip(&clip_instance.clip_id).map(|c| c.duration)
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}
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lightningbeam_core::layer::AnyLayer::Audio(_) => {
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document.get_audio_clip(&clip_instance.clip_id).map(|c| c.duration)
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}
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lightningbeam_core::layer::AnyLayer::Video(_) => {
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document.get_video_clip(&clip_instance.clip_id).map(|c| c.duration)
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}
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}?;
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let instance_duration = clip_instance.effective_duration(clip_duration);
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let instance_start = clip_instance.timeline_start;
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let instance_end = instance_start + instance_duration;
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if hover_time >= instance_start && hover_time <= instance_end {
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let start_x = self.time_to_x(instance_start);
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let end_x = self.time_to_x(instance_end);
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let mouse_x = pointer_pos.x - content_rect.min.x;
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// Determine drag type based on edge proximity (check both sides of edge)
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let drag_type = if (mouse_x - start_x).abs() <= EDGE_DETECTION_PIXELS {
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ClipDragType::TrimLeft
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} else if (end_x - mouse_x).abs() <= EDGE_DETECTION_PIXELS {
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ClipDragType::TrimRight
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} else {
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ClipDragType::Move
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};
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return Some((drag_type, clip_instance.id));
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}
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}
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None
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}
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/// Zoom in by a fixed increment
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pub fn zoom_in(&mut self, center_x: f32) {
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self.apply_zoom_at_point(0.2, center_x);
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}
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/// Zoom out by a fixed increment
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pub fn zoom_out(&mut self, center_x: f32) {
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self.apply_zoom_at_point(-0.2, center_x);
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}
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/// Reset zoom to 100 pixels per second
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pub fn actual_size(&mut self) {
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self.pixels_per_second = 100.0;
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}
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/// Reset pan to start and zoom to default
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pub fn recenter(&mut self) {
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self.viewport_start_time = 0.0;
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self.viewport_scroll_y = 0.0;
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self.pixels_per_second = 100.0;
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}
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/// Apply zoom while keeping the time under the cursor stationary
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fn apply_zoom_at_point(&mut self, zoom_delta: f32, mouse_x: f32) {
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let old_zoom = self.pixels_per_second;
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// Calculate time position under mouse before zoom
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let time_at_mouse = self.x_to_time(mouse_x);
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// Apply zoom
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let new_zoom = (old_zoom * (1.0 + zoom_delta)).clamp(MIN_PIXELS_PER_SECOND, MAX_PIXELS_PER_SECOND);
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self.pixels_per_second = new_zoom;
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// Adjust viewport so the same time stays under the mouse
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let new_mouse_x = self.time_to_x(time_at_mouse);
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let time_delta = (new_mouse_x - mouse_x) / new_zoom;
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self.viewport_start_time = (self.viewport_start_time + time_delta as f64).max(0.0);
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}
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/// Convert time (seconds) to pixel x-coordinate
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fn time_to_x(&self, time: f64) -> f32 {
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((time - self.viewport_start_time) * self.pixels_per_second as f64) as f32
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}
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/// Convert pixel x-coordinate to time (seconds)
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fn x_to_time(&self, x: f32) -> f64 {
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self.viewport_start_time + (x / self.pixels_per_second) as f64
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}
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/// Calculate appropriate interval for time ruler based on zoom level
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fn calculate_ruler_interval(&self) -> f64 {
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// Target: 50-100px between major ticks
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let target_px = 75.0;
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let target_seconds = target_px / self.pixels_per_second;
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// Standard intervals: 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, 100...
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let intervals = [0.1, 0.2, 0.5, 1.0, 2.0, 5.0, 10.0, 20.0, 50.0, 100.0];
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// Find the interval closest to our target
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intervals.iter()
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.min_by_key(|&&interval| ((interval - target_seconds as f64).abs() * 1000.0) as i32)
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.copied()
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.unwrap_or(1.0)
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}
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/// Render the time ruler at the top
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fn render_ruler(&self, ui: &mut egui::Ui, rect: egui::Rect, theme: &crate::theme::Theme) {
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let painter = ui.painter();
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// Background
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let bg_style = theme.style(".timeline-background", ui.ctx());
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let bg_color = bg_style.background_color.unwrap_or(egui::Color32::from_rgb(34, 34, 34));
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painter.rect_filled(
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rect,
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0.0,
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bg_color,
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);
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// Get text color from theme
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let text_style = theme.style(".text-primary", ui.ctx());
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let text_color = text_style.text_color.unwrap_or(egui::Color32::from_gray(200));
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// Calculate interval for tick marks
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let interval = self.calculate_ruler_interval();
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// Draw tick marks and labels
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let start_time = (self.viewport_start_time / interval).floor() * interval;
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let end_time = self.x_to_time(rect.width());
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let mut time = start_time;
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while time <= end_time {
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let x = self.time_to_x(time);
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if x >= 0.0 && x <= rect.width() {
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// Major tick mark
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painter.line_segment(
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[
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rect.min + egui::vec2(x, rect.height() - 10.0),
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rect.min + egui::vec2(x, rect.height()),
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],
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egui::Stroke::new(1.0, egui::Color32::from_gray(100)),
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);
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// Time label
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let label = format!("{:.1}s", time);
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painter.text(
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rect.min + egui::vec2(x + 2.0, 5.0),
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egui::Align2::LEFT_TOP,
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label,
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egui::FontId::proportional(12.0),
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text_color,
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);
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}
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// Minor tick marks (subdivisions)
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let minor_interval = interval / 5.0;
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for i in 1..5 {
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let minor_time = time + minor_interval * i as f64;
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let minor_x = self.time_to_x(minor_time);
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if minor_x >= 0.0 && minor_x <= rect.width() {
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painter.line_segment(
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[
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rect.min + egui::vec2(minor_x, rect.height() - 5.0),
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rect.min + egui::vec2(minor_x, rect.height()),
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],
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egui::Stroke::new(1.0, egui::Color32::from_gray(60)),
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);
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}
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}
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time += interval;
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}
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}
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/// Render the playhead (current time indicator)
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fn render_playhead(&self, ui: &mut egui::Ui, rect: egui::Rect, theme: &crate::theme::Theme) {
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let x = self.time_to_x(self.current_time);
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if x >= 0.0 && x <= rect.width() {
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let painter = ui.painter();
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let scrubber_style = theme.style(".timeline-scrubber", ui.ctx());
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let scrubber_color = scrubber_style.background_color.unwrap_or(egui::Color32::from_rgb(204, 34, 34));
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// Red vertical line
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painter.line_segment(
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[
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rect.min + egui::vec2(x, 0.0),
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egui::pos2(rect.min.x + x, rect.max.y),
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],
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egui::Stroke::new(2.0, scrubber_color),
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);
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// Playhead handle (triangle at top)
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let handle_size = 8.0;
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let points = vec![
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rect.min + egui::vec2(x, 0.0),
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rect.min + egui::vec2(x - handle_size / 2.0, handle_size),
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rect.min + egui::vec2(x + handle_size / 2.0, handle_size),
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];
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painter.add(egui::Shape::convex_polygon(
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points,
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scrubber_color,
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egui::Stroke::NONE,
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));
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}
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}
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/// Render layer header column (left side with track names and controls)
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fn render_layer_headers(
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&self,
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ui: &mut egui::Ui,
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rect: egui::Rect,
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theme: &crate::theme::Theme,
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document: &lightningbeam_core::document::Document,
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active_layer_id: &Option<uuid::Uuid>,
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) {
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let painter = ui.painter();
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// Background for header column
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let header_style = theme.style(".timeline-header", ui.ctx());
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let header_bg = header_style.background_color.unwrap_or(egui::Color32::from_rgb(17, 17, 17));
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painter.rect_filled(
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rect,
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0.0,
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header_bg,
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);
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// Theme colors for active/inactive layers
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let active_style = theme.style(".timeline-layer-active", ui.ctx());
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let inactive_style = theme.style(".timeline-layer-inactive", ui.ctx());
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let active_color = active_style.background_color.unwrap_or(egui::Color32::from_rgb(79, 79, 79));
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let inactive_color = inactive_style.background_color.unwrap_or(egui::Color32::from_rgb(51, 51, 51));
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// Get text color from theme
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let text_style = theme.style(".text-primary", ui.ctx());
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let text_color = text_style.text_color.unwrap_or(egui::Color32::from_gray(200));
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let secondary_text_color = egui::Color32::from_gray(150);
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// Draw layer headers from document (reversed so newest layers appear on top)
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for (i, layer) in document.root.children.iter().rev().enumerate() {
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let y = rect.min.y + i as f32 * LAYER_HEIGHT - self.viewport_scroll_y;
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// Skip if layer is outside visible area
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if y + LAYER_HEIGHT < rect.min.y || y > rect.max.y {
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continue;
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}
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let header_rect = egui::Rect::from_min_size(
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egui::pos2(rect.min.x, y),
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egui::vec2(LAYER_HEADER_WIDTH, LAYER_HEIGHT),
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);
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// Active vs inactive background colors
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let is_active = active_layer_id.map_or(false, |id| id == layer.id());
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let bg_color = if is_active {
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active_color
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} else {
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inactive_color
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};
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painter.rect_filled(header_rect, 0.0, bg_color);
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// Get layer info
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let layer_data = layer.layer();
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let layer_name = &layer_data.name;
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let (layer_type, type_color) = match layer {
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lightningbeam_core::layer::AnyLayer::Vector(_) => ("Vector", egui::Color32::from_rgb(100, 150, 255)), // Blue
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lightningbeam_core::layer::AnyLayer::Audio(_) => ("Audio", egui::Color32::from_rgb(100, 255, 150)), // Green
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lightningbeam_core::layer::AnyLayer::Video(_) => ("Video", egui::Color32::from_rgb(255, 150, 100)), // Orange
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};
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// Color indicator bar on the left edge
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let indicator_rect = egui::Rect::from_min_size(
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header_rect.min,
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egui::vec2(4.0, LAYER_HEIGHT),
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);
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painter.rect_filled(indicator_rect, 0.0, type_color);
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// Layer name
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painter.text(
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header_rect.min + egui::vec2(10.0, 10.0),
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egui::Align2::LEFT_TOP,
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layer_name,
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egui::FontId::proportional(14.0),
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text_color,
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);
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// Layer type (smaller text below name with colored background)
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let type_text_pos = header_rect.min + egui::vec2(10.0, 28.0);
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let type_text_galley = painter.layout_no_wrap(
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layer_type.to_string(),
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egui::FontId::proportional(11.0),
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secondary_text_color,
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);
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// Draw colored background for type label
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let type_bg_rect = egui::Rect::from_min_size(
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type_text_pos + egui::vec2(-2.0, -1.0),
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egui::vec2(type_text_galley.size().x + 4.0, type_text_galley.size().y + 2.0),
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);
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painter.rect_filled(
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type_bg_rect,
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2.0,
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egui::Color32::from_rgba_unmultiplied(type_color.r(), type_color.g(), type_color.b(), 60),
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);
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painter.text(
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type_text_pos,
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egui::Align2::LEFT_TOP,
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layer_type,
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egui::FontId::proportional(11.0),
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secondary_text_color,
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);
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// Separator line at bottom
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painter.line_segment(
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[
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egui::pos2(header_rect.min.x, header_rect.max.y),
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egui::pos2(header_rect.max.x, header_rect.max.y),
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],
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egui::Stroke::new(1.0, egui::Color32::from_gray(20)),
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);
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}
|
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// Right border for header column
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painter.line_segment(
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[
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egui::pos2(rect.max.x, rect.min.y),
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egui::pos2(rect.max.x, rect.max.y),
|
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],
|
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egui::Stroke::new(1.0, egui::Color32::from_gray(20)),
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);
|
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}
|
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|
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/// Render layer rows (timeline content area)
|
|
fn render_layers(
|
|
&self,
|
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ui: &mut egui::Ui,
|
|
rect: egui::Rect,
|
|
theme: &crate::theme::Theme,
|
|
document: &lightningbeam_core::document::Document,
|
|
active_layer_id: &Option<uuid::Uuid>,
|
|
selection: &lightningbeam_core::selection::Selection,
|
|
) {
|
|
let painter = ui.painter();
|
|
|
|
// Theme colors for active/inactive layers
|
|
let active_style = theme.style(".timeline-row-active", ui.ctx());
|
|
let inactive_style = theme.style(".timeline-row-inactive", ui.ctx());
|
|
let active_color = active_style.background_color.unwrap_or(egui::Color32::from_rgb(85, 85, 85));
|
|
let inactive_color = inactive_style.background_color.unwrap_or(egui::Color32::from_rgb(136, 136, 136));
|
|
|
|
// Draw layer rows from document (reversed so newest layers appear on top)
|
|
for (i, layer) in document.root.children.iter().rev().enumerate() {
|
|
let y = rect.min.y + i as f32 * LAYER_HEIGHT - self.viewport_scroll_y;
|
|
|
|
// Skip if layer is outside visible area
|
|
if y + LAYER_HEIGHT < rect.min.y || y > rect.max.y {
|
|
continue;
|
|
}
|
|
|
|
let layer_rect = egui::Rect::from_min_size(
|
|
egui::pos2(rect.min.x, y),
|
|
egui::vec2(rect.width(), LAYER_HEIGHT),
|
|
);
|
|
|
|
// Active vs inactive background colors
|
|
let is_active = active_layer_id.map_or(false, |id| id == layer.id());
|
|
let bg_color = if is_active {
|
|
active_color
|
|
} else {
|
|
inactive_color
|
|
};
|
|
|
|
painter.rect_filled(layer_rect, 0.0, bg_color);
|
|
|
|
// Grid lines matching ruler
|
|
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());
|
|
|
|
let mut time = start_time;
|
|
while time <= end_time {
|
|
let x = self.time_to_x(time);
|
|
|
|
if x >= 0.0 && x <= rect.width() {
|
|
painter.line_segment(
|
|
[
|
|
egui::pos2(rect.min.x + x, y),
|
|
egui::pos2(rect.min.x + x, y + LAYER_HEIGHT),
|
|
],
|
|
egui::Stroke::new(1.0, egui::Color32::from_gray(30)),
|
|
);
|
|
}
|
|
|
|
time += interval;
|
|
}
|
|
|
|
// Draw clip instances for this layer
|
|
let clip_instances = match layer {
|
|
lightningbeam_core::layer::AnyLayer::Vector(vl) => &vl.clip_instances,
|
|
lightningbeam_core::layer::AnyLayer::Audio(al) => &al.clip_instances,
|
|
lightningbeam_core::layer::AnyLayer::Video(vl) => &vl.clip_instances,
|
|
};
|
|
|
|
for clip_instance in clip_instances {
|
|
// Get the clip to determine duration
|
|
let clip_duration = match layer {
|
|
lightningbeam_core::layer::AnyLayer::Vector(_) => {
|
|
document.get_vector_clip(&clip_instance.clip_id)
|
|
.map(|c| c.duration)
|
|
}
|
|
lightningbeam_core::layer::AnyLayer::Audio(_) => {
|
|
document.get_audio_clip(&clip_instance.clip_id)
|
|
.map(|c| c.duration)
|
|
}
|
|
lightningbeam_core::layer::AnyLayer::Video(_) => {
|
|
document.get_video_clip(&clip_instance.clip_id)
|
|
.map(|c| c.duration)
|
|
}
|
|
};
|
|
|
|
if let Some(clip_duration) = clip_duration {
|
|
// Calculate effective duration accounting for trimming
|
|
let mut instance_duration = clip_instance.effective_duration(clip_duration);
|
|
|
|
// Instance positioned on the layer's timeline using timeline_start
|
|
// The layer itself has start_time, so the absolute timeline position is:
|
|
// layer.start_time + instance.timeline_start
|
|
let layer_data = layer.layer();
|
|
let mut instance_start = clip_instance.timeline_start;
|
|
|
|
// Apply drag offset preview for selected clips
|
|
let is_selected = selection.contains_clip_instance(&clip_instance.id);
|
|
|
|
if let Some(drag_type) = self.clip_drag_state {
|
|
if is_selected {
|
|
match drag_type {
|
|
ClipDragType::Move => {
|
|
// Move: shift the entire clip along the timeline
|
|
instance_start += self.drag_offset;
|
|
}
|
|
ClipDragType::TrimLeft => {
|
|
// Trim left: calculate new trim_start and clamp to valid range
|
|
let new_trim_start = (clip_instance.trim_start + self.drag_offset)
|
|
.max(0.0)
|
|
.min(clip_duration);
|
|
let actual_offset = new_trim_start - clip_instance.trim_start;
|
|
|
|
// Move start and reduce duration by actual clamped offset
|
|
instance_start = (clip_instance.timeline_start + actual_offset)
|
|
.max(0.0);
|
|
instance_duration = (clip_duration - new_trim_start).max(0.0);
|
|
|
|
// Adjust for existing trim_end
|
|
if let Some(trim_end) = clip_instance.trim_end {
|
|
instance_duration = (trim_end - new_trim_start).max(0.0);
|
|
}
|
|
}
|
|
ClipDragType::TrimRight => {
|
|
// Trim right: extend or reduce duration, clamped to available content
|
|
let max_duration = clip_duration - clip_instance.trim_start;
|
|
instance_duration = (instance_duration + self.drag_offset)
|
|
.max(0.0)
|
|
.min(max_duration);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
let instance_end = instance_start + instance_duration;
|
|
|
|
let start_x = self.time_to_x(instance_start);
|
|
let end_x = self.time_to_x(instance_end);
|
|
|
|
// Only draw if any part is visible in viewport
|
|
if end_x >= 0.0 && start_x <= rect.width() {
|
|
let visible_start_x = start_x.max(0.0);
|
|
let visible_end_x = end_x.min(rect.width());
|
|
|
|
// Choose color based on layer type
|
|
let (clip_color, bright_color) = match layer {
|
|
lightningbeam_core::layer::AnyLayer::Vector(_) => (
|
|
egui::Color32::from_rgb(100, 150, 255), // Blue
|
|
egui::Color32::from_rgb(150, 200, 255), // Bright blue
|
|
),
|
|
lightningbeam_core::layer::AnyLayer::Audio(_) => (
|
|
egui::Color32::from_rgb(100, 255, 150), // Green
|
|
egui::Color32::from_rgb(150, 255, 200), // Bright green
|
|
),
|
|
lightningbeam_core::layer::AnyLayer::Video(_) => (
|
|
egui::Color32::from_rgb(255, 150, 100), // Orange
|
|
egui::Color32::from_rgb(255, 200, 150), // Bright orange
|
|
),
|
|
};
|
|
|
|
let clip_rect = egui::Rect::from_min_max(
|
|
egui::pos2(rect.min.x + visible_start_x, y + 10.0),
|
|
egui::pos2(rect.min.x + visible_end_x, y + LAYER_HEIGHT - 10.0),
|
|
);
|
|
|
|
// Draw the clip instance
|
|
painter.rect_filled(
|
|
clip_rect,
|
|
3.0, // Rounded corners
|
|
clip_color,
|
|
);
|
|
|
|
// Draw border only if selected (brighter version of clip color)
|
|
if selection.contains_clip_instance(&clip_instance.id) {
|
|
painter.rect_stroke(
|
|
clip_rect,
|
|
3.0,
|
|
egui::Stroke::new(3.0, bright_color),
|
|
);
|
|
}
|
|
|
|
// Draw clip name if there's space
|
|
if let Some(name) = &clip_instance.name {
|
|
if clip_rect.width() > 50.0 {
|
|
painter.text(
|
|
clip_rect.min + egui::vec2(5.0, 5.0),
|
|
egui::Align2::LEFT_TOP,
|
|
name,
|
|
egui::FontId::proportional(11.0),
|
|
egui::Color32::WHITE,
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Separator line at bottom
|
|
painter.line_segment(
|
|
[
|
|
egui::pos2(layer_rect.min.x, layer_rect.max.y),
|
|
egui::pos2(layer_rect.max.x, layer_rect.max.y),
|
|
],
|
|
egui::Stroke::new(1.0, egui::Color32::from_gray(20)),
|
|
);
|
|
}
|
|
}
|
|
|
|
/// Handle mouse input for scrubbing, panning, zooming, layer selection, and clip instance selection
|
|
fn handle_input(
|
|
&mut self,
|
|
ui: &mut egui::Ui,
|
|
full_timeline_rect: egui::Rect,
|
|
ruler_rect: egui::Rect,
|
|
content_rect: egui::Rect,
|
|
header_rect: egui::Rect,
|
|
layer_count: usize,
|
|
document: &lightningbeam_core::document::Document,
|
|
active_layer_id: &mut Option<uuid::Uuid>,
|
|
selection: &mut lightningbeam_core::selection::Selection,
|
|
pending_actions: &mut Vec<Box<dyn lightningbeam_core::action::Action>>,
|
|
) {
|
|
let response = ui.allocate_rect(full_timeline_rect, egui::Sense::click_and_drag());
|
|
|
|
// Only process input if mouse is over the timeline pane
|
|
if !response.hovered() {
|
|
self.is_panning = false;
|
|
self.last_pan_pos = None;
|
|
self.is_scrubbing = false;
|
|
return;
|
|
}
|
|
|
|
let alt_held = ui.input(|i| i.modifiers.alt);
|
|
let ctrl_held = ui.input(|i| i.modifiers.ctrl || i.modifiers.command);
|
|
let shift_held = ui.input(|i| i.modifiers.shift);
|
|
|
|
// Handle clip instance selection by clicking on clip rectangles
|
|
let mut clicked_clip_instance = false;
|
|
if response.clicked() && !alt_held {
|
|
if let Some(pos) = response.interact_pointer_pos() {
|
|
// Check if click is in content area (not ruler or header column)
|
|
if pos.y >= header_rect.min.y && pos.x >= content_rect.min.x {
|
|
let relative_y = pos.y - header_rect.min.y + self.viewport_scroll_y;
|
|
let clicked_layer_index = (relative_y / LAYER_HEIGHT) as usize;
|
|
let click_time = self.x_to_time(pos.x - content_rect.min.x);
|
|
|
|
// Get the layer at this index (accounting for reversed display order)
|
|
if clicked_layer_index < layer_count {
|
|
let layers: Vec<_> = document.root.children.iter().rev().collect();
|
|
if let Some(layer) = layers.get(clicked_layer_index) {
|
|
let layer_data = layer.layer();
|
|
|
|
// Get clip instances for this layer
|
|
let clip_instances = match layer {
|
|
lightningbeam_core::layer::AnyLayer::Vector(vl) => &vl.clip_instances,
|
|
lightningbeam_core::layer::AnyLayer::Audio(al) => &al.clip_instances,
|
|
lightningbeam_core::layer::AnyLayer::Video(vl) => &vl.clip_instances,
|
|
};
|
|
|
|
// Check if click is within any clip instance
|
|
for clip_instance in clip_instances {
|
|
// Get the clip to determine duration
|
|
let clip_duration = match layer {
|
|
lightningbeam_core::layer::AnyLayer::Vector(_) => {
|
|
document.get_vector_clip(&clip_instance.clip_id)
|
|
.map(|c| c.duration)
|
|
}
|
|
lightningbeam_core::layer::AnyLayer::Audio(_) => {
|
|
document.get_audio_clip(&clip_instance.clip_id)
|
|
.map(|c| c.duration)
|
|
}
|
|
lightningbeam_core::layer::AnyLayer::Video(_) => {
|
|
document.get_video_clip(&clip_instance.clip_id)
|
|
.map(|c| c.duration)
|
|
}
|
|
};
|
|
|
|
if let Some(clip_duration) = clip_duration {
|
|
let instance_duration = clip_instance.effective_duration(clip_duration);
|
|
let instance_start = clip_instance.timeline_start;
|
|
let instance_end = instance_start + instance_duration;
|
|
|
|
// Check if click is within this clip instance's time range
|
|
if click_time >= instance_start && click_time <= instance_end {
|
|
// Found a clicked clip instance!
|
|
if shift_held {
|
|
// Shift+click: add to selection
|
|
selection.add_clip_instance(clip_instance.id);
|
|
} else {
|
|
// Regular click: select only this clip
|
|
selection.select_only_clip_instance(clip_instance.id);
|
|
}
|
|
clicked_clip_instance = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Cache mouse position on mousedown (before any dragging)
|
|
if response.hovered() && ui.input(|i| i.pointer.button_pressed(egui::PointerButton::Primary)) {
|
|
if let Some(pos) = response.hover_pos() {
|
|
self.mousedown_pos = Some(pos);
|
|
}
|
|
}
|
|
|
|
// Handle clip dragging (only if not panning or scrubbing)
|
|
if !alt_held && !self.is_scrubbing && !self.is_panning {
|
|
if response.drag_started() {
|
|
// Use cached mousedown position for edge detection
|
|
if let Some(mousedown_pos) = self.mousedown_pos {
|
|
if let Some((drag_type, clip_id)) = self.detect_clip_at_pointer(
|
|
mousedown_pos,
|
|
document,
|
|
content_rect,
|
|
header_rect,
|
|
) {
|
|
// If this clip is not selected, select it (respecting shift key)
|
|
if !selection.contains_clip_instance(&clip_id) {
|
|
if shift_held {
|
|
selection.add_clip_instance(clip_id);
|
|
} else {
|
|
selection.select_only_clip_instance(clip_id);
|
|
}
|
|
}
|
|
|
|
// Start dragging with the detected drag type
|
|
self.clip_drag_state = Some(drag_type);
|
|
self.drag_offset = 0.0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Update drag offset during drag
|
|
if self.clip_drag_state.is_some() && response.dragged() {
|
|
let drag_delta = response.drag_delta();
|
|
let time_delta = drag_delta.x / self.pixels_per_second;
|
|
self.drag_offset += time_delta as f64;
|
|
}
|
|
|
|
// End drag - create action based on drag type
|
|
if let Some(drag_type) = self.clip_drag_state {
|
|
if response.drag_stopped() {
|
|
// Build layer_moves map for the action
|
|
use std::collections::HashMap;
|
|
let mut layer_moves: HashMap<uuid::Uuid, Vec<(uuid::Uuid, f64, f64)>> =
|
|
HashMap::new();
|
|
|
|
// Iterate through all layers to find selected clip instances
|
|
for layer in &document.root.children {
|
|
let layer_id = layer.id();
|
|
|
|
// Get clip instances for this layer
|
|
let clip_instances = match layer {
|
|
lightningbeam_core::layer::AnyLayer::Vector(vl) => &vl.clip_instances,
|
|
lightningbeam_core::layer::AnyLayer::Audio(al) => &al.clip_instances,
|
|
lightningbeam_core::layer::AnyLayer::Video(vl) => &vl.clip_instances,
|
|
};
|
|
|
|
// Find selected clip instances in this layer
|
|
for clip_instance in clip_instances {
|
|
if selection.contains_clip_instance(&clip_instance.id) {
|
|
let old_timeline_start = clip_instance.timeline_start;
|
|
let new_timeline_start = old_timeline_start + self.drag_offset;
|
|
|
|
// Add to layer_moves
|
|
layer_moves
|
|
.entry(layer_id)
|
|
.or_insert_with(Vec::new)
|
|
.push((clip_instance.id, old_timeline_start, new_timeline_start));
|
|
}
|
|
}
|
|
}
|
|
|
|
// Create and add the action based on drag type
|
|
match drag_type {
|
|
ClipDragType::Move => {
|
|
if !layer_moves.is_empty() {
|
|
let action = Box::new(
|
|
lightningbeam_core::actions::MoveClipInstancesAction::new(
|
|
layer_moves,
|
|
),
|
|
);
|
|
pending_actions.push(action);
|
|
}
|
|
}
|
|
ClipDragType::TrimLeft | ClipDragType::TrimRight => {
|
|
// Build layer_trims map for trim action
|
|
let mut layer_trims: HashMap<
|
|
uuid::Uuid,
|
|
Vec<(
|
|
uuid::Uuid,
|
|
lightningbeam_core::actions::TrimType,
|
|
lightningbeam_core::actions::TrimData,
|
|
lightningbeam_core::actions::TrimData,
|
|
)>,
|
|
> = HashMap::new();
|
|
|
|
// Iterate through all layers to find selected clip instances
|
|
for layer in &document.root.children {
|
|
let layer_id = layer.id();
|
|
let layer_data = layer.layer();
|
|
|
|
let clip_instances = match layer {
|
|
lightningbeam_core::layer::AnyLayer::Vector(vl) => {
|
|
&vl.clip_instances
|
|
}
|
|
lightningbeam_core::layer::AnyLayer::Audio(al) => {
|
|
&al.clip_instances
|
|
}
|
|
lightningbeam_core::layer::AnyLayer::Video(vl) => {
|
|
&vl.clip_instances
|
|
}
|
|
};
|
|
|
|
// Find selected clip instances in this layer
|
|
for clip_instance in clip_instances {
|
|
if selection.contains_clip_instance(&clip_instance.id) {
|
|
// Get clip duration to validate trim bounds
|
|
let clip_duration = match layer {
|
|
lightningbeam_core::layer::AnyLayer::Vector(_) => {
|
|
document
|
|
.get_vector_clip(&clip_instance.clip_id)
|
|
.map(|c| c.duration)
|
|
}
|
|
lightningbeam_core::layer::AnyLayer::Audio(_) => {
|
|
document
|
|
.get_audio_clip(&clip_instance.clip_id)
|
|
.map(|c| c.duration)
|
|
}
|
|
lightningbeam_core::layer::AnyLayer::Video(_) => {
|
|
document
|
|
.get_video_clip(&clip_instance.clip_id)
|
|
.map(|c| c.duration)
|
|
}
|
|
};
|
|
|
|
if let Some(clip_duration) = clip_duration {
|
|
match drag_type {
|
|
ClipDragType::TrimLeft => {
|
|
let old_trim_start = clip_instance.trim_start;
|
|
let old_timeline_start =
|
|
clip_instance.timeline_start;
|
|
|
|
// New trim_start is clamped to valid range
|
|
let new_trim_start = (old_trim_start
|
|
+ self.drag_offset)
|
|
.max(0.0)
|
|
.min(clip_duration);
|
|
|
|
// Calculate actual offset after clamping
|
|
let actual_offset = new_trim_start - old_trim_start;
|
|
let new_timeline_start =
|
|
old_timeline_start + actual_offset;
|
|
|
|
layer_trims
|
|
.entry(layer_id)
|
|
.or_insert_with(Vec::new)
|
|
.push((
|
|
clip_instance.id,
|
|
lightningbeam_core::actions::TrimType::TrimLeft,
|
|
lightningbeam_core::actions::TrimData::left(
|
|
old_trim_start,
|
|
old_timeline_start,
|
|
),
|
|
lightningbeam_core::actions::TrimData::left(
|
|
new_trim_start,
|
|
new_timeline_start,
|
|
),
|
|
));
|
|
}
|
|
ClipDragType::TrimRight => {
|
|
let old_trim_end = clip_instance.trim_end;
|
|
|
|
// Calculate new trim_end based on current duration
|
|
let current_duration =
|
|
clip_instance.effective_duration(clip_duration);
|
|
let new_duration =
|
|
(current_duration + self.drag_offset).max(0.0);
|
|
|
|
// Convert new duration back to trim_end value
|
|
let new_trim_end = if new_duration >= clip_duration {
|
|
None // Use full clip duration
|
|
} else {
|
|
Some((clip_instance.trim_start + new_duration).min(clip_duration))
|
|
};
|
|
|
|
layer_trims
|
|
.entry(layer_id)
|
|
.or_insert_with(Vec::new)
|
|
.push((
|
|
clip_instance.id,
|
|
lightningbeam_core::actions::TrimType::TrimRight,
|
|
lightningbeam_core::actions::TrimData::right(
|
|
old_trim_end,
|
|
),
|
|
lightningbeam_core::actions::TrimData::right(
|
|
new_trim_end,
|
|
),
|
|
));
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Create and add the trim action if there are any trims
|
|
if !layer_trims.is_empty() {
|
|
let action = Box::new(
|
|
lightningbeam_core::actions::TrimClipInstancesAction::new(
|
|
layer_trims,
|
|
),
|
|
);
|
|
pending_actions.push(action);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Reset drag state
|
|
self.clip_drag_state = None;
|
|
self.drag_offset = 0.0;
|
|
self.mousedown_pos = None;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Handle layer selection by clicking on layer header or content (only if no clip was clicked)
|
|
if response.clicked() && !alt_held && !clicked_clip_instance {
|
|
if let Some(pos) = response.interact_pointer_pos() {
|
|
// Check if click is in header or content area (not ruler)
|
|
if pos.y >= header_rect.min.y {
|
|
let relative_y = pos.y - header_rect.min.y + self.viewport_scroll_y;
|
|
let clicked_layer_index = (relative_y / LAYER_HEIGHT) as usize;
|
|
|
|
// Get the layer at this index (accounting for reversed display order)
|
|
if clicked_layer_index < layer_count {
|
|
let layers: Vec<_> = document.root.children.iter().rev().collect();
|
|
if let Some(layer) = layers.get(clicked_layer_index) {
|
|
*active_layer_id = Some(layer.id());
|
|
// Clear clip instance selection when clicking on empty layer area
|
|
if !shift_held {
|
|
selection.clear_clip_instances();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Get mouse position relative to content area
|
|
let mouse_pos = response.hover_pos().unwrap_or(content_rect.center());
|
|
let mouse_x = (mouse_pos.x - content_rect.min.x).max(0.0);
|
|
|
|
// Calculate max vertical scroll based on number of layers
|
|
let total_content_height = layer_count as f32 * LAYER_HEIGHT;
|
|
let visible_height = content_rect.height();
|
|
let max_scroll_y = (total_content_height - visible_height).max(0.0);
|
|
|
|
// Scrubbing (clicking/dragging on ruler, but only when not panning)
|
|
let cursor_over_ruler = ruler_rect.contains(ui.input(|i| i.pointer.hover_pos().unwrap_or_default()));
|
|
|
|
// Start scrubbing if cursor is over ruler and we click/drag
|
|
if cursor_over_ruler && !alt_held && (response.clicked() || (response.dragged() && !self.is_panning)) {
|
|
if let Some(pos) = response.interact_pointer_pos() {
|
|
let x = (pos.x - content_rect.min.x).max(0.0);
|
|
self.current_time = self.x_to_time(x).max(0.0);
|
|
self.is_scrubbing = true;
|
|
}
|
|
}
|
|
// Continue scrubbing while dragging, even if cursor leaves ruler
|
|
else if self.is_scrubbing && response.dragged() && !self.is_panning {
|
|
if let Some(pos) = response.interact_pointer_pos() {
|
|
let x = (pos.x - content_rect.min.x).max(0.0);
|
|
self.current_time = self.x_to_time(x).max(0.0);
|
|
}
|
|
}
|
|
// Stop scrubbing when drag ends
|
|
else if !response.dragged() {
|
|
self.is_scrubbing = false;
|
|
}
|
|
|
|
// Distinguish between mouse wheel (discrete) and trackpad (smooth)
|
|
let mut handled = false;
|
|
ui.input(|i| {
|
|
for event in &i.raw.events {
|
|
if let egui::Event::MouseWheel { unit, delta, modifiers, .. } = event {
|
|
match unit {
|
|
egui::MouseWheelUnit::Line | egui::MouseWheelUnit::Page => {
|
|
// Real mouse wheel (discrete clicks) -> always zoom horizontally
|
|
let zoom_delta = if ctrl_held || modifiers.ctrl {
|
|
delta.y * 0.01 // Ctrl+wheel: faster zoom
|
|
} else {
|
|
delta.y * 0.005 // Normal zoom
|
|
};
|
|
self.apply_zoom_at_point(zoom_delta, mouse_x);
|
|
handled = true;
|
|
}
|
|
egui::MouseWheelUnit::Point => {
|
|
// Trackpad (smooth scrolling)
|
|
if ctrl_held || modifiers.ctrl {
|
|
// Ctrl held: zoom
|
|
let zoom_delta = delta.y * 0.005;
|
|
self.apply_zoom_at_point(zoom_delta, mouse_x);
|
|
handled = true;
|
|
}
|
|
// Otherwise let scroll_delta handle panning (below)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
// Handle scroll_delta for trackpad panning (when Ctrl not held)
|
|
if !handled {
|
|
let scroll_delta = ui.input(|i| i.smooth_scroll_delta);
|
|
if scroll_delta.x.abs() > 0.0 || scroll_delta.y.abs() > 0.0 {
|
|
// Horizontal scroll: pan timeline (inverted: positive delta scrolls left/earlier in time)
|
|
let delta_time = scroll_delta.x / self.pixels_per_second;
|
|
self.viewport_start_time = (self.viewport_start_time - delta_time as f64).max(0.0);
|
|
|
|
// Vertical scroll: scroll layers vertically (clamped to content bounds)
|
|
self.viewport_scroll_y = (self.viewport_scroll_y - scroll_delta.y).clamp(0.0, max_scroll_y);
|
|
}
|
|
}
|
|
|
|
// Handle panning with Alt+Drag (timeline scrolls left/right, layers scroll up/down)
|
|
if alt_held && response.dragged() && !self.is_scrubbing {
|
|
if let Some(last_pos) = self.last_pan_pos {
|
|
if let Some(current_pos) = response.interact_pointer_pos() {
|
|
let delta = current_pos - last_pos;
|
|
|
|
// Horizontal pan: timeline
|
|
let delta_time = delta.x / self.pixels_per_second;
|
|
self.viewport_start_time = (self.viewport_start_time - delta_time as f64).max(0.0);
|
|
|
|
// Vertical pan: layers (clamped to content bounds)
|
|
self.viewport_scroll_y = (self.viewport_scroll_y - delta.y).clamp(0.0, max_scroll_y);
|
|
}
|
|
}
|
|
self.last_pan_pos = response.interact_pointer_pos();
|
|
self.is_panning = true;
|
|
} else {
|
|
if !response.dragged() {
|
|
self.is_panning = false;
|
|
self.last_pan_pos = None;
|
|
}
|
|
}
|
|
|
|
// Update cursor based on hover position (only if not scrubbing or panning)
|
|
if !self.is_scrubbing && !self.is_panning {
|
|
// If dragging a clip with trim, keep the resize cursor
|
|
if let Some(drag_type) = self.clip_drag_state {
|
|
if drag_type != ClipDragType::Move {
|
|
ui.ctx().set_cursor_icon(egui::CursorIcon::ResizeHorizontal);
|
|
}
|
|
} else if let Some(hover_pos) = response.hover_pos() {
|
|
// Not dragging - detect hover for cursor feedback
|
|
if let Some((drag_type, _clip_id)) = self.detect_clip_at_pointer(
|
|
hover_pos,
|
|
document,
|
|
content_rect,
|
|
header_rect,
|
|
) {
|
|
// Set cursor for trim operations
|
|
if drag_type != ClipDragType::Move {
|
|
ui.ctx().set_cursor_icon(egui::CursorIcon::ResizeHorizontal);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
impl PaneRenderer for TimelinePane {
|
|
fn render_header(&mut self, ui: &mut egui::Ui, shared: &mut SharedPaneState) -> bool {
|
|
ui.spacing_mut().item_spacing.x = 2.0; // Small spacing between button groups
|
|
|
|
// Main playback controls group
|
|
ui.group(|ui| {
|
|
ui.horizontal(|ui| {
|
|
ui.spacing_mut().item_spacing.x = 0.0; // No spacing between buttons
|
|
let button_size = egui::vec2(32.0, 28.0); // Larger buttons
|
|
|
|
// Go to start
|
|
if ui.add_sized(button_size, egui::Button::new("|◀")).clicked() {
|
|
self.current_time = 0.0;
|
|
}
|
|
|
|
// Rewind (step backward)
|
|
if ui.add_sized(button_size, egui::Button::new("◀◀")).clicked() {
|
|
self.current_time = (self.current_time - 0.1).max(0.0);
|
|
}
|
|
|
|
// Play/Pause toggle
|
|
let play_pause_text = if self.is_playing { "⏸" } else { "▶" };
|
|
if ui.add_sized(button_size, egui::Button::new(play_pause_text)).clicked() {
|
|
self.is_playing = !self.is_playing;
|
|
// TODO: Actually start/stop playback
|
|
}
|
|
|
|
// Fast forward (step forward)
|
|
if ui.add_sized(button_size, egui::Button::new("▶▶")).clicked() {
|
|
self.current_time = (self.current_time + 0.1).min(self.duration);
|
|
}
|
|
|
|
// Go to end
|
|
if ui.add_sized(button_size, egui::Button::new("▶|")).clicked() {
|
|
self.current_time = self.duration;
|
|
}
|
|
});
|
|
});
|
|
|
|
ui.separator();
|
|
|
|
// Get text color from theme
|
|
let text_style = shared.theme.style(".text-primary", ui.ctx());
|
|
let text_color = text_style.text_color.unwrap_or(egui::Color32::from_gray(200));
|
|
|
|
// Time display
|
|
ui.colored_label(text_color, format!("Time: {:.2}s / {:.2}s", self.current_time, self.duration));
|
|
|
|
ui.separator();
|
|
|
|
// Zoom display
|
|
ui.colored_label(text_color, format!("Zoom: {:.0}px/s", self.pixels_per_second));
|
|
|
|
true
|
|
}
|
|
|
|
fn render_content(
|
|
&mut self,
|
|
ui: &mut egui::Ui,
|
|
rect: egui::Rect,
|
|
_path: &NodePath,
|
|
shared: &mut SharedPaneState,
|
|
) {
|
|
// Sync timeline's current_time to document
|
|
shared.action_executor.document_mut().current_time = self.current_time;
|
|
|
|
// Get document from action executor
|
|
let document = shared.action_executor.document();
|
|
let layer_count = document.root.children.len();
|
|
|
|
// Calculate project duration from last clip endpoint across all layers
|
|
let mut max_endpoint: f64 = 10.0; // Default minimum duration
|
|
for layer in &document.root.children {
|
|
let clip_instances = match layer {
|
|
lightningbeam_core::layer::AnyLayer::Vector(vl) => &vl.clip_instances,
|
|
lightningbeam_core::layer::AnyLayer::Audio(al) => &al.clip_instances,
|
|
lightningbeam_core::layer::AnyLayer::Video(vl) => &vl.clip_instances,
|
|
};
|
|
|
|
for clip_instance in clip_instances {
|
|
// Get clip duration
|
|
let clip_duration = match layer {
|
|
lightningbeam_core::layer::AnyLayer::Vector(_) => {
|
|
document.get_vector_clip(&clip_instance.clip_id)
|
|
.map(|c| c.duration)
|
|
}
|
|
lightningbeam_core::layer::AnyLayer::Audio(_) => {
|
|
document.get_audio_clip(&clip_instance.clip_id)
|
|
.map(|c| c.duration)
|
|
}
|
|
lightningbeam_core::layer::AnyLayer::Video(_) => {
|
|
document.get_video_clip(&clip_instance.clip_id)
|
|
.map(|c| c.duration)
|
|
}
|
|
};
|
|
|
|
if let Some(clip_duration) = clip_duration {
|
|
let instance_duration = clip_instance.effective_duration(clip_duration);
|
|
let instance_end = clip_instance.timeline_start + instance_duration;
|
|
max_endpoint = max_endpoint.max(instance_end);
|
|
}
|
|
}
|
|
}
|
|
self.duration = max_endpoint;
|
|
|
|
// Split into layer header column (left) and timeline content (right)
|
|
let header_column_rect = egui::Rect::from_min_size(
|
|
rect.min,
|
|
egui::vec2(LAYER_HEADER_WIDTH, rect.height()),
|
|
);
|
|
|
|
let timeline_rect = egui::Rect::from_min_size(
|
|
rect.min + egui::vec2(LAYER_HEADER_WIDTH, 0.0),
|
|
egui::vec2(rect.width() - LAYER_HEADER_WIDTH, rect.height()),
|
|
);
|
|
|
|
// Split timeline into ruler and content areas
|
|
let ruler_rect = egui::Rect::from_min_size(
|
|
timeline_rect.min,
|
|
egui::vec2(timeline_rect.width(), RULER_HEIGHT),
|
|
);
|
|
|
|
let content_rect = egui::Rect::from_min_size(
|
|
timeline_rect.min + egui::vec2(0.0, RULER_HEIGHT),
|
|
egui::vec2(timeline_rect.width(), timeline_rect.height() - RULER_HEIGHT),
|
|
);
|
|
|
|
// Split header column into ruler area (top) and layer headers (bottom)
|
|
let header_ruler_spacer = egui::Rect::from_min_size(
|
|
header_column_rect.min,
|
|
egui::vec2(LAYER_HEADER_WIDTH, RULER_HEIGHT),
|
|
);
|
|
|
|
let layer_headers_rect = egui::Rect::from_min_size(
|
|
header_column_rect.min + egui::vec2(0.0, RULER_HEIGHT),
|
|
egui::vec2(LAYER_HEADER_WIDTH, header_column_rect.height() - RULER_HEIGHT),
|
|
);
|
|
|
|
// Save original clip rect to restore at the end
|
|
let original_clip_rect = ui.clip_rect();
|
|
|
|
// Render spacer above layer headers (same height as ruler)
|
|
let spacer_style = shared.theme.style(".timeline-spacer", ui.ctx());
|
|
let spacer_bg = spacer_style.background_color.unwrap_or(egui::Color32::from_rgb(17, 17, 17));
|
|
ui.painter().rect_filled(
|
|
header_ruler_spacer,
|
|
0.0,
|
|
spacer_bg,
|
|
);
|
|
|
|
// Render layer header column with clipping
|
|
ui.set_clip_rect(layer_headers_rect.intersect(original_clip_rect));
|
|
self.render_layer_headers(ui, layer_headers_rect, shared.theme, document, shared.active_layer_id);
|
|
|
|
// Render time ruler (clip to ruler rect)
|
|
ui.set_clip_rect(ruler_rect.intersect(original_clip_rect));
|
|
self.render_ruler(ui, ruler_rect, shared.theme);
|
|
|
|
// Render layer rows with clipping
|
|
ui.set_clip_rect(content_rect.intersect(original_clip_rect));
|
|
self.render_layers(ui, content_rect, shared.theme, document, shared.active_layer_id, shared.selection);
|
|
|
|
// Render playhead on top (clip to timeline area)
|
|
ui.set_clip_rect(timeline_rect.intersect(original_clip_rect));
|
|
self.render_playhead(ui, timeline_rect, shared.theme);
|
|
|
|
// Restore original clip rect
|
|
ui.set_clip_rect(original_clip_rect);
|
|
|
|
// Handle input (use full rect including header column)
|
|
self.handle_input(
|
|
ui,
|
|
rect,
|
|
ruler_rect,
|
|
content_rect,
|
|
layer_headers_rect,
|
|
layer_count,
|
|
document,
|
|
shared.active_layer_id,
|
|
shared.selection,
|
|
shared.pending_actions,
|
|
);
|
|
|
|
// Register handler for pending view actions (two-phase dispatch)
|
|
// Priority: Mouse-over (0-99) > Fallback Timeline(1001)
|
|
const TIMELINE_MOUSE_OVER_PRIORITY: u32 = 0;
|
|
const TIMELINE_FALLBACK_PRIORITY: u32 = 1001;
|
|
|
|
let mouse_over = ui.rect_contains_pointer(rect);
|
|
|
|
// Determine our priority for this action
|
|
let our_priority = if mouse_over {
|
|
TIMELINE_MOUSE_OVER_PRIORITY // High priority - mouse is over this pane
|
|
} else {
|
|
TIMELINE_FALLBACK_PRIORITY // Low priority - just a fallback option
|
|
};
|
|
|
|
// Check if we should register as a handler (better priority than current best)
|
|
let should_register = shared.pending_view_action.is_some() &&
|
|
shared.fallback_pane_priority.map_or(true, |p| our_priority < p);
|
|
|
|
if should_register {
|
|
// Update fallback priority tracker
|
|
*shared.fallback_pane_priority = Some(our_priority);
|
|
|
|
// Register as a handler (don't execute yet - that happens after all panes render)
|
|
if let Some(action) = &shared.pending_view_action {
|
|
use crate::menu::MenuAction;
|
|
|
|
// Determine zoom center point (use x-position only for timeline horizontal zoom)
|
|
let center = if mouse_over {
|
|
// Use mouse position for zoom-to-cursor
|
|
let mouse_pos = ui.input(|i| i.pointer.hover_pos()).unwrap_or(rect.center());
|
|
mouse_pos - rect.min
|
|
} else {
|
|
// Use center of viewport for fallback
|
|
rect.size() / 2.0
|
|
};
|
|
|
|
// Only register for actions we can handle
|
|
match action {
|
|
MenuAction::ZoomIn | MenuAction::ZoomOut |
|
|
MenuAction::ActualSize | MenuAction::RecenterView => {
|
|
shared.pending_handlers.push(super::ViewActionHandler {
|
|
priority: our_priority,
|
|
pane_path: _path.clone(),
|
|
zoom_center: center,
|
|
});
|
|
}
|
|
_ => {
|
|
// Not a view action we handle - reset priority so others can try
|
|
*shared.fallback_pane_priority = None;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn name(&self) -> &str {
|
|
"Timeline"
|
|
}
|
|
}
|