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fix: auto-follow 80px both sides for tempo lane bar visibility + 200px buffer

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3dtours
2026-07-25 10:01:56 +07:00
parent fbbe2c933c
commit 52ecc38e13
1 changed files with 20 additions and 8 deletions
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app/static/js/app.jsx
+20 -8
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@@ -1226,7 +1226,7 @@ const TempoTrackLane = ({
const beatNum = Math.floor(t / beatDuration) + 1;
const isBar = beatNum % 4 === 1;
const localX = (t - tStart) * zoom;
if (localX < 0 || localX > drawWidth) continue;
if (localX < -200 || localX > drawWidth + 200) continue;
if (isBar) {
ctx.strokeStyle = 'rgba(255, 255, 255, 0.3)';
ctx.lineWidth = 1.5;
@@ -10192,7 +10192,7 @@ const App = () => {
const wrapper = timelineWrapperRef.current;
if (!wrapper) return;
const wr = wrapper.getBoundingClientRect();
const margin = 80;
const margin = 200;
if (clientX > wr.right - margin) {
const depth = (clientX - (wr.right - margin)) / margin;
const speed = Math.round(5 + depth * depth * 40);
@@ -10226,8 +10226,12 @@ const App = () => {
const clampedStart = Math.min(rawStart, marginBar);
const newStart = snapTime(clampedStart, snapValueRef.current, bpmRef.current);
const itemPx = newStart * zoom;
if (itemPx < scrollLeft + 60) {
wrapper.scrollLeft = Math.max(0, itemPx - 60);
const keepMargin = 80;
if (itemPx > scrollLeft + rect.width - keepMargin) {
wrapper.scrollLeft = itemPx - rect.width + keepMargin;
setCanvasRedrawCount(n => n + 1);
} else if (itemPx < scrollLeft + keepMargin) {
wrapper.scrollLeft = Math.max(0, itemPx - keepMargin);
setCanvasRedrawCount(n => n + 1);
}
const targetTrackId = hoveredTrackIdRef.current || drag.trackId;
@@ -10389,8 +10393,12 @@ const App = () => {
const rawStart = Math.max(beatSec, Math.min(time - drag.clickOffset, marginBar));
const newStart = snapTime(rawStart, snapValueRef.current, bpmRef.current);
const itemPx = newStart * zoom;
if (itemPx < scrollLeft + 60) {
wrapper.scrollLeft = Math.max(0, itemPx - 60);
const keepMargin = 80;
if (itemPx > scrollLeft + rect.width - keepMargin) {
wrapper.scrollLeft = itemPx - rect.width + keepMargin;
setCanvasRedrawCount(n => n + 1);
} else if (itemPx < scrollLeft + keepMargin) {
wrapper.scrollLeft = Math.max(0, itemPx - keepMargin);
setCanvasRedrawCount(n => n + 1);
}
const targetTrackId = hoveredTrackIdRef.current || drag.trackId;
@@ -10482,8 +10490,12 @@ const App = () => {
: { ...t, midiItems: items };
}));
const edgePx = (resize.side === 'left' ? Math.max(0, time) : time) * zoom;
if (edgePx < scrollLeft + 60) {
wrapper.scrollLeft = Math.max(0, edgePx - 60);
const keepMargin = 80;
if (edgePx > scrollLeft + rect.width - keepMargin) {
wrapper.scrollLeft = edgePx - rect.width + keepMargin;
setCanvasRedrawCount(n => n + 1);
} else if (edgePx < scrollLeft + keepMargin) {
wrapper.scrollLeft = Math.max(0, edgePx - keepMargin);
setCanvasRedrawCount(n => n + 1);
}
};