From 7b294adca24efe00d8614515ddee50b4a3b743d0 Mon Sep 17 00:00:00 2001
From: umsangdon <umsangdon@gmail.com>
Date: Sun, 27 Sep 2026 22:35:54 +0900
Subject: [PATCH] =?UTF-8?q?feat(spreadsheet):=20C=20=EA=B2=A9=EC=9E=90=20?=
 =?UTF-8?q?=E2=80=94=20=ED=99=95=EB=8C=80=20=EC=9D=B4=EC=9D=8C(zoom()=20?=
 =?UTF-8?q?=C2=B7=20aislo-grid-zoom=20=EC=9D=B4=EB=B2=A4=ED=8A=B8)?=
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계약 더함 — GridHandle.zoom(): number(1 = 100%). 확대가 바뀔 때마다 격자 root 에서
CustomEvent("aislo-grid-zoom", { detail: { zoom }, bubbles: true }) 를 쏨(sub4 상태줄이 들음).
ORCA 시험 — WheelEvent(ctrlKey · deltaY -300) 로 확대 흉내 → zoom() 1→1.568 · 이벤트
detail.zoom 도 같은 값으로 확인.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VVM3xZ1aUPcUTuW2WZSnwg
---
 A00_Common/spreadsheet/spreadsheet_grid.ts       | 6 ++++++
 A00_Common/spreadsheet/spreadsheet_view_types.ts | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/A00_Common/spreadsheet/spreadsheet_grid.ts b/A00_Common/spreadsheet/spreadsheet_grid.ts
index 7118a752..23dc5c68 100644
--- a/A00_Common/spreadsheet/spreadsheet_grid.ts
+++ b/A00_Common/spreadsheet/spreadsheet_grid.ts
@@ -399,6 +399,7 @@ export function createGrid(ctx: SpreadsheetContext): GridHandle {
     paneBR.scrollLeft *= zoom / before;
     paneBR.scrollTop *= zoom / before;
     layoutPanes();
+    root.dispatchEvent(new CustomEvent("aislo-grid-zoom", { detail: { zoom }, bubbles: true }));
   }
   root.addEventListener("wheel", onWheel, { passive: false });
 
@@ -935,6 +936,10 @@ export function createGrid(ctx: SpreadsheetContext): GridHandle {
     return { layer: paneLayerOf(r, c), box: screenBoxOf(r, c) };
   }
 
+  function getZoom(): number {
+    return zoom;
+  }
+
   function destroy(): void {
     resize.disconnect();
     paneBR.removeEventListener("scroll", onScroll);
@@ -954,6 +959,7 @@ export function createGrid(ctx: SpreadsheetContext): GridHandle {
     reveal,
     visibleRange,
     editorSlot,
+    zoom: getZoom,
     destroy,
   };
 }
diff --git a/A00_Common/spreadsheet/spreadsheet_view_types.ts b/A00_Common/spreadsheet/spreadsheet_view_types.ts
index 4c9a97e6..3695a4b4 100644
--- a/A00_Common/spreadsheet/spreadsheet_view_types.ts
+++ b/A00_Common/spreadsheet/spreadsheet_view_types.ts
@@ -69,6 +69,8 @@ export interface GridHandle {
   visibleRange(): CellRange;
   /** 편집기를 얹을 층과 칸 자리(화면 좌표 · 병합이면 전체) — D 편집기가 씀 */
   editorSlot(r: number, c: number): { layer: HTMLElement; box: CellBox };
+  /** 지금 확대(1 = 100%) — 바뀌면 `root` 에서 CustomEvent("aislo-grid-zoom", { detail: { zoom } }) 를 쏨(E 상태줄이 들음) */
+  zoom(): number;
   destroy(): void;
 }