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feat: enhance time snapping and interval calculation for improved sound placement in Sequencer

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JSC
2025-09-03 21:35:42 +02:00
parent cd7af24831
commit 92444fb023
2 changed files with 68 additions and 113 deletions
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118
src/components/sequencer/SequencerCanvas.tsx
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@@ -14,6 +14,7 @@ interface SequencerCanvasProps {
draggedItem?: any // Current dragged item from parent
dragOverInfo?: {trackId: string, x: number} | null // Drag over position info
onRemoveSound: (soundId: string, trackId: string) => void
timeIntervals: {minorIntervals: number[], majorIntervals: number[], minorInterval: number, majorInterval: number}
}
interface TrackRowProps {
@@ -25,6 +26,7 @@ interface TrackRowProps {
draggedItem?: any // Current dragged item
dragOverInfo?: {trackId: string, x: number} | null // Drag over position info
onRemoveSound: (soundId: string, trackId: string) => void
timeIntervals: {minorIntervals: number[], majorIntervals: number[], minorInterval: number, majorInterval: number}
}
interface PlacedSoundItemProps {
@@ -32,9 +34,10 @@ interface PlacedSoundItemProps {
zoom: number
trackId: string
onRemove: (soundId: string) => void
minorInterval: number
}
function PlacedSoundItem({ sound, zoom, trackId, onRemove }: PlacedSoundItemProps) {
function PlacedSoundItem({ sound, zoom, trackId, onRemove, minorInterval }: PlacedSoundItemProps) {
const {
attributes,
listeners,
@@ -54,18 +57,11 @@ function PlacedSoundItem({ sound, zoom, trackId, onRemove }: PlacedSoundItemProp
transform: `translate3d(${transform.x}px, ${transform.y}px, 0)`,
} : undefined
// Helper function to snap time to 100ms intervals
const snapToGrid = (timeInSeconds: number): number => {
const snapIntervalMs = 100 // 100ms snap interval
const timeInMs = timeInSeconds * 1000
const snappedMs = Math.round(timeInMs / snapIntervalMs) * snapIntervalMs
return snappedMs / 1000 // Convert back to seconds
}
const width = (sound.duration / 1000) * zoom // Convert ms to seconds for zoom calculation
// Ensure placed sounds are positioned at snapped locations
const snappedStartTime = snapToGrid(sound.startTime / 1000)
const left = snappedStartTime * zoom
// Ensure placed sounds are positioned at snapped locations using current minor interval
const startTimeSeconds = sound.startTime / 1000
const snappedStartTime = Math.round(startTimeSeconds / minorInterval) * minorInterval
const left = Math.max(0, snappedStartTime) * zoom
const formatTime = (seconds: number): string => {
const mins = Math.floor(seconds / 60)
@@ -119,7 +115,7 @@ function PlacedSoundItem({ sound, zoom, trackId, onRemove }: PlacedSoundItemProp
)
}
function TrackRow({ track, duration, zoom, isPlaying, currentTime, draggedItem, dragOverInfo, onRemoveSound }: TrackRowProps) {
function TrackRow({ track, duration, zoom, isPlaying, currentTime, draggedItem, dragOverInfo, onRemoveSound, timeIntervals }: TrackRowProps) {
const playheadPosition = (currentTime / 1000) * zoom // Convert ms to seconds for zoom calculation
const { isOver, setNodeRef: setDropRef } = useDroppable({
@@ -134,51 +130,7 @@ function TrackRow({ track, duration, zoom, isPlaying, currentTime, draggedItem,
onRemoveSound(soundId, track.id)
}
// Calculate logical time intervals based on zoom level (same as main component)
const getTimeIntervals = (zoom: number, duration: number) => {
const durationSeconds = duration / 1000
const minorIntervals: number[] = []
const majorIntervals: number[] = []
// Define logical interval progressions
const intervalSets = [
{ minor: 1, major: 5 }, // 1s minor, 5s major (very zoomed in)
{ minor: 5, major: 30 }, // 5s minor, 30s major
{ minor: 10, major: 60 }, // 10s minor, 1min major
{ minor: 30, major: 300 }, // 30s minor, 5min major
{ minor: 60, major: 600 }, // 1min minor, 10min major
{ minor: 300, major: 1800 }, // 5min minor, 30min major
{ minor: 600, major: 3600 } // 10min minor, 1h major
]
// Find appropriate interval set based on zoom level
// We want major intervals to be roughly 100-200px apart
const targetMajorSpacing = 150
let selectedIntervals = intervalSets[intervalSets.length - 1] // fallback to largest
for (const intervals of intervalSets) {
if (intervals.major * zoom >= targetMajorSpacing) {
selectedIntervals = intervals
break
}
}
// Generate minor intervals (every interval)
for (let i = 0; i * selectedIntervals.minor <= durationSeconds; i++) {
const time = i * selectedIntervals.minor
minorIntervals.push(time)
}
// Generate major intervals (at major boundaries)
for (let i = 0; i * selectedIntervals.major <= durationSeconds; i++) {
const time = i * selectedIntervals.major
majorIntervals.push(time)
}
return { minorIntervals, majorIntervals, minorInterval: selectedIntervals.minor, majorInterval: selectedIntervals.major }
}
const { minorIntervals, majorIntervals } = getTimeIntervals(zoom, duration)
const { minorIntervals, majorIntervals } = timeIntervals
return (
<div className="relative" style={{ height: '80px' }}>
@@ -266,6 +218,7 @@ function TrackRow({ track, duration, zoom, isPlaying, currentTime, draggedItem,
zoom={zoom}
trackId={track.id}
onRemove={handleRemoveSound}
minorInterval={timeIntervals.minorInterval}
/>
))}
</div>
@@ -283,6 +236,7 @@ export const SequencerCanvas = forwardRef<HTMLDivElement, SequencerCanvasProps>(
draggedItem,
dragOverInfo,
onRemoveSound,
timeIntervals,
}, ref) => {
const totalWidth = (duration / 1000) * zoom // Convert ms to seconds for zoom calculation
const timelineRef = useRef<HTMLDivElement>(null)
@@ -295,52 +249,7 @@ export const SequencerCanvas = forwardRef<HTMLDivElement, SequencerCanvasProps>(
},
})
// Calculate logical time intervals based on zoom level
const getTimeIntervals = (zoom: number, duration: number) => {
const durationSeconds = duration / 1000
const minorIntervals: number[] = []
const majorIntervals: number[] = []
// Define logical interval progressions
const intervalSets = [
{ minor: 0.1, major: 1 }, // 0.1s minor, 1s major (mega zoomed in)
{ minor: 1, major: 5 }, // 1s minor, 5s major (very zoomed in)
{ minor: 5, major: 30 }, // 5s minor, 30s major
{ minor: 10, major: 60 }, // 10s minor, 1min major
{ minor: 30, major: 300 }, // 30s minor, 5min major
{ minor: 60, major: 600 }, // 1min minor, 10min major
{ minor: 300, major: 1800 }, // 5min minor, 30min major
{ minor: 600, major: 3600 } // 10min minor, 1h major
]
// Find appropriate interval set based on zoom level
// We want major intervals to be roughly 100-200px apart
const targetMajorSpacing = 150
let selectedIntervals = intervalSets[intervalSets.length - 1] // fallback to largest
for (const intervals of intervalSets) {
if (intervals.major * zoom >= targetMajorSpacing) {
selectedIntervals = intervals
break
}
}
// Generate minor intervals (every interval)
for (let i = 0; i * selectedIntervals.minor <= durationSeconds; i++) {
const time = i * selectedIntervals.minor
minorIntervals.push(time)
}
// Generate major intervals (at major boundaries)
for (let i = 0; i * selectedIntervals.major <= durationSeconds; i++) {
const time = i * selectedIntervals.major
majorIntervals.push(time)
}
return { minorIntervals, majorIntervals, minorInterval: selectedIntervals.minor, majorInterval: selectedIntervals.major }
}
const { minorIntervals, majorIntervals } = getTimeIntervals(zoom, duration)
const { minorIntervals, majorIntervals } = timeIntervals
const handleTracksScroll = (e: React.UIEvent<HTMLDivElement>) => {
// Sync timeline horizontal scroll with tracks
@@ -430,6 +339,7 @@ export const SequencerCanvas = forwardRef<HTMLDivElement, SequencerCanvasProps>(
draggedItem={draggedItem}
dragOverInfo={dragOverInfo}
onRemoveSound={onRemoveSound}
timeIntervals={timeIntervals}
/>
))}
</div>