보조지표 차트 우측 라벨 마우스 스크롤 확대축소

frontend/src/components/TradingChart.tsx

@@ -1215,11 +1215,11 @@ const TradingChart: React.FC<TradingChartProps> = ({
       const rect = container.getBoundingClientRect();
       const chartX = e.clientX - rect.left;
       const chartY = e.clientY - rect.top;
-      if (!m.isCandlePanePriceAxis(chartX, chartY)) return;
+      if (!m.isOnPriceAxis(chartX, chartY)) return;
 
       e.preventDefault();
       e.stopPropagation();
-      m.zoomMainPriceByWheel(e.deltaY, chartY);
+      m.zoomPriceAxisByWheel(chartX, chartY, e.deltaY);
     };
     container.addEventListener('wheel', onWheelCapture, { capture: true, passive: false });
 

frontend/src/utils/ChartManager.ts

@@ -4277,36 +4277,139 @@ export class ChartManager {
     return this.getPaneIndexAtChartY(chartY) === 0 && this.isOnPriceAxis(chartX, chartY);
   }
 
+  /** 우측 가격축 라벨 영역 휠 — 해당 pane(캔들·거래량·보조지표) 세로 줌 */
+  zoomPriceAxisByWheel(chartX: number, chartY: number, deltaY: number): boolean {
+    if (deltaY === 0 || !this.isOnPriceAxis(chartX, chartY)) return false;
+    const paneIndex = this.getPaneIndexAtChartY(chartY);
+    return this._zoomPanePriceScaleByWheel(paneIndex, deltaY, chartY);
+  }
+
   /**
    * 캔들 pane(0) 우측 가격축 휠 — pane 높이는 유지, 플롯 내 가격 범위만 확대/축소.
    * wheel up → 줌 인(캔들·그래프가 세로로 커 보임), wheel down → 줌 아웃.
    */
   zoomMainPriceByWheel(deltaY: number, anchorChartY?: number): boolean {
     if (!this.mainSeries || deltaY === 0) return false;
+    return this._zoomPanePriceScaleByWheel(0, deltaY, anchorChartY);
+  }
 
-    const main = this.getPaneLayouts().find(l => l.paneIndex === 0);
+  /** 거래량·보조지표 pane 우측 가격축 휠 줌 */
-    if (!main || main.height <= 0) return false;
+  zoomPanePriceByWheel(paneIndex: number, deltaY: number, anchorChartY?: number): boolean {
+    if (paneIndex === 0) return this.zoomMainPriceByWheel(deltaY, anchorChartY);
+    return this._zoomPanePriceScaleByWheel(paneIndex, deltaY, anchorChartY);
+  }
 
-    let range = this._mainPriceVisibleRange ?? this._readMainPriceRange();
+  private _getPriceScaleForPane(paneIndex: number) {
+    return paneIndex === 1
+      ? this.chart.priceScale('volume', 1)
+      : this.chart.priceScale('right', paneIndex);
+  }
+
+  private _getRepresentativeSeriesForPane(paneIndex: number): ISeriesApi<SeriesType> | null {
+    if (paneIndex === 0) return this.mainSeries;
+    if (paneIndex === 1 && this.volumeSeries) {
+      try {
+        const vis = (this.volumeSeries.options() as { visible?: boolean }).visible;
+        if (vis !== false) return this.volumeSeries;
+      } catch {
+        return this.volumeSeries;
+      }
+    }
+    for (const entry of this.indicators.values()) {
+      if (entry.paneIndex === paneIndex && entry.seriesList.length > 0) {
+        return entry.seriesList[0];
+      }
+    }
+    if (paneIndex === 1) return this.volumeSeries;
+    return null;
+  }
+
+  private _readPanePriceRange(paneIndex: number): { from: number; to: number } | null {
+    if (paneIndex === 0) return this._readMainPriceRange();
+
+    try {
+      const existing = this._getPriceScaleForPane(paneIndex).getVisibleRange();
+      if (existing) return { from: existing.from, to: existing.to };
+    } catch { /* fall through */ }
+
+    const series = this._getRepresentativeSeriesForPane(paneIndex);
+    const layout = this.getPaneLayouts().find(l => l.paneIndex === paneIndex);
+    if (!series || !layout || layout.height <= 0) return null;
+
+    const pTop = series.coordinateToPrice(0);
+    const pBot = series.coordinateToPrice(layout.height);
+    if (pTop === null || pBot === null) return null;
+    return { from: Math.min(pTop, pBot), to: Math.max(pTop, pBot) };
+  }
+
+  private _preparePaneManualPriceScale(paneIndex: number): void {
+    if (paneIndex === 0) {
+      if (!this.mainSeries) return;
+      this.mainSeries.priceScale().setAutoScale(false);
+      this.mainSeries.applyOptions({ autoscaleInfoProvider: undefined });
+      return;
+    }
+
+    try {
+      this._getPriceScaleForPane(paneIndex).setAutoScale(false);
+    } catch { /* ok */ }
+
+    if (paneIndex === 1 && this.volumeSeries) {
+      try {
+        this.volumeSeries.applyOptions({ autoscaleInfoProvider: undefined });
+      } catch { /* ok */ }
+    }
+
+    for (const entry of this.indicators.values()) {
+      if (entry.paneIndex !== paneIndex) continue;
+      for (const series of entry.seriesList) {
+        try {
+          series.applyOptions({ autoscaleInfoProvider: undefined });
+        } catch { /* ok */ }
+      }
+    }
+  }
+
+  private _zoomPanePriceScaleByWheel(
+    paneIndex: number,
+    deltaY: number,
+    anchorChartY?: number,
+  ): boolean {
+    if (deltaY === 0) return false;
+    if (paneIndex === 0 && !this.mainSeries) return false;
+
+    const layout = this.getPaneLayouts().find(l => l.paneIndex === paneIndex);
+    if (!layout || layout.height <= 0) return false;
+
+    const stored = paneIndex === 0
+      ? this._mainPriceVisibleRange
+      : this._panePriceVisibleRanges.get(paneIndex);
+    let range = stored ?? this._readPanePriceRange(paneIndex);
     if (!range) return false;
 
     const span = range.to - range.from;
     if (!Number.isFinite(span) || span <= 0) return false;
 
-    const ps = this.mainSeries.priceScale();
+    if (!stored) {
-    if (!this._mainPriceVisibleRange) {
+      this._preparePaneManualPriceScale(paneIndex);
-      ps.setAutoScale(false);
+      if (paneIndex === 0) {
-      this.mainSeries.applyOptions({ autoscaleInfoProvider: undefined });
+        this._mainPriceVisibleRange = { ...range };
-      this._mainPriceVisibleRange = { ...range };
+      } else {
+        this._panePriceVisibleRanges.set(paneIndex, { ...range });
+      }
     }
 
+    const series = this._getRepresentativeSeriesForPane(paneIndex);
     const paneLocalY = anchorChartY != null
-      ? Math.max(0, Math.min(main.height, anchorChartY - main.topY))
+      ? Math.max(0, Math.min(layout.height, anchorChartY - layout.topY))
-      : main.height / 2;
+      : layout.height / 2;
-    const rawAnchor = this.mainSeries.coordinateToPrice(paneLocalY);
+    let anchorPrice = (range.from + range.to) / 2;
-    const anchorPrice = (rawAnchor != null && Number.isFinite(rawAnchor))
+    if (series) {
-      ? rawAnchor
+      const rawAnchor = series.coordinateToPrice(paneLocalY);
-      : (range.from + range.to) / 2;
+      if (rawAnchor != null && Number.isFinite(rawAnchor)) {
+        anchorPrice = rawAnchor;
+      }
+    }
 
     const factor = Math.exp(deltaY * 0.0012);
     const newSpan = Math.max(span * 1e-6, span * factor);
@@ -4319,8 +4422,16 @@ export class ChartManager {
       to: anchorPrice + (1 - ratio) * clampedSpan,
     };
 
-    this._mainPriceVisibleRange = next;
+    if (paneIndex === 0) {
+      this._mainPriceVisibleRange = next;
+    } else {
+      this._panePriceVisibleRanges.set(paneIndex, next);
+    }
+
     try {
+      const ps = paneIndex === 0 && this.mainSeries
+        ? this.mainSeries.priceScale()
+        : this._getPriceScaleForPane(paneIndex);
       ps.setVisibleRange(next);
       return true;
     } catch {
@@ -4357,6 +4468,8 @@ export class ChartManager {
 
   /** 캔들 pane 수동 가격 범위 (세로 패닝용) */
   private _mainPriceVisibleRange: { from: number; to: number } | null = null;
+  /** 보조지표·거래량 pane 수동 가격 범위 (휠 줌용) */
+  private _panePriceVisibleRanges = new Map<number, { from: number; to: number }>();
 
   private _readMainPriceRange(): { from: number; to: number } | null {
     if (!this.mainSeries) return null;