From c10f81716f0f0aed76a6992e8cdfbb4192b5fa83 Mon Sep 17 00:00:00 2001
From: umsangdon <umsangdon@gmail.com>
Date: Fri, 25 Sep 2026 09:49:45 +0900
Subject: [PATCH] =?UTF-8?q?feat(sheet):=20=EC=B9=B8=EC=97=90=20=3D=20?=
 =?UTF-8?q?=EB=A1=9C=20=EC=B9=98=EB=A9=B4=20=EA=B7=B8=20=EC=B9=B8=EB=A7=8C?=
 =?UTF-8?q?=20=EC=8B=9D(=EC=A4=84.=EC=8B=9D)=20=C2=B7=20=EB=84=88=EB=B9=84?=
 =?UTF-8?q?=20=EC=86=90=EC=9E=A1=EC=9D=B4=EB=A5=BC=20=EC=B9=B8=20=EC=95=88?=
 =?UTF-8?q?=EC=9C=BC=EB=A1=9C=20=C2=B7=20=EC=A4=84=EB=A8=B8=EB=A6=AC=20?=
 =?UTF-8?q?=EC=B9=B8=20=EB=84=93=ED=9E=98=20(PLAN=2010-2)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- master 는 계산 칸도 = 식으로 고침 · 지우면 열 식으로 돌아감 · project 손 열도 = 식 받음
- 너비 손잡이 반쪽이 옆 칸에 가려 안 잡히던 것 고침

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Tjoit7rxvpLMM7cafeVTo1
---
 ui_template/sheet/ui_template_sheet.css       |  2 +-
 ui_template/sheet/ui_template_sheet.ts        |  5 ++++-
 ui_template/sheet/ui_template_sheet_ops.ts    | 18 +++++++++++++-----
 ui_template/sheet/ui_template_sheet_render.ts |  2 +-
 ui_template/sheet/ui_template_sheet_text.ts   |  4 ++--
 5 files changed, 21 insertions(+), 10 deletions(-)

diff --git a/ui_template/sheet/ui_template_sheet.css b/ui_template/sheet/ui_template_sheet.css
index 2390fd79..8255b423 100644
--- a/ui_template/sheet/ui_template_sheet.css
+++ b/ui_template/sheet/ui_template_sheet.css
@@ -171,7 +171,7 @@
 .ui-sheet__resize {
   position: absolute;
   top: 0;
-  right: -3px;
+  right: 0;
   z-index: 3;
   width: 6px;
   height: 100%;
diff --git a/ui_template/sheet/ui_template_sheet.ts b/ui_template/sheet/ui_template_sheet.ts
index 33c55e15..6545381b 100644
--- a/ui_template/sheet/ui_template_sheet.ts
+++ b/ui_template/sheet/ui_template_sheet.ts
@@ -169,7 +169,10 @@ export function createSheet(host: HTMLElement, input: SheetDoc, opts: SheetOptio
     if (key === "s:formula") return col.식 ?? "";
     if (key === "s:desc") return col.설명 ?? "";
     if (key === "s:price") return col.일위대가 ?? "";
-    const raw = state.doc.줄.find((r) => `d:${r.id}` === key)?.값[col.id];
+    const row = state.doc.줄.find((r) => `d:${r.id}` === key);
+    const formula = row?.식?.[col.id] ?? col.식;
+    if (formula) return `=${formula}`;
+    const raw = row?.값[col.id];
     return raw === null || raw === undefined ? "" : String(raw);
   };
   const write = (key: string, col: SheetColumn, text: string): void => {
diff --git a/ui_template/sheet/ui_template_sheet_ops.ts b/ui_template/sheet/ui_template_sheet_ops.ts
index ebf1e309..e9f1d59e 100644
--- a/ui_template/sheet/ui_template_sheet_ops.ts
+++ b/ui_template/sheet/ui_template_sheet_ops.ts
@@ -27,11 +27,10 @@ export function orderedRows(doc: SheetDoc): SheetRow[] {
 export const isCalcColumn = (col: SheetColumn): boolean => !!col.식;
 export const isBoundColumn = (col: SheetColumn): boolean => !!col.바인딩;
 
-/** 본문 칸을 고칠 수 있나 — master 는 계산 열 밖 전부 · project 는 손 열만(+ 사용자가 더한 줄의 글 열). */
+/** 본문 칸을 고칠 수 있나 — master 는 전부(계산 칸은 `=` 식으로) · project 는 손 열만(+ 사용자가 더한 줄의 글 열). */
 export function cellEditable(mode: SheetMode, col: SheetColumn, row: SheetRow): boolean {
-  if (row.식?.[col.id] || isCalcColumn(col)) return false;
   if (mode === "master") return true;
-  if (isBoundColumn(col)) return false;
+  if (isBoundColumn(col) || isCalcColumn(col)) return false;
   return !!col.손 || (!!row.손 && col.꼴 === "글");
 }
 
@@ -85,12 +84,21 @@ export function deleteColumn(doc: SheetDoc, id: string): void {
   if (doc.보기?.열너비) delete doc.보기.열너비[id];
 }
 
-/** 칸에 친 글 → 저장 값. 수 열은 수 꼴이면 수 · 빈 글은 칸을 비움. */
+/** 칸에 친 글 → 저장 값. `=` 로 시작하면 그 칸만의 식(`줄.식`) · 수 열은 수 꼴이면 수 · 빈 글은 칸을 비움. */
 export function setCell(doc: SheetDoc, rowId: string, col: SheetColumn, text: string): void {
   const row = doc.줄.find((r) => r.id === rowId);
   if (!row) return;
   const trimmed = text.trim();
-  if (trimmed === "") {
+  if (row.식) {
+    delete row.식[col.id];
+    if (!Object.keys(row.식).length) delete row.식;
+  }
+  if (trimmed.startsWith("=") && trimmed.slice(1).trim() !== (col.식 ?? "")) {
+    delete row.값[col.id];
+    (row.식 ??= {})[col.id] = trimmed.slice(1).trim();
+    return;
+  }
+  if (trimmed === "" || trimmed.startsWith("=")) {
     delete row.값[col.id];
     return;
   }
diff --git a/ui_template/sheet/ui_template_sheet_render.ts b/ui_template/sheet/ui_template_sheet_render.ts
index 816130f8..25f9ddb0 100644
--- a/ui_template/sheet/ui_template_sheet_render.ts
+++ b/ui_template/sheet/ui_template_sheet_render.ts
@@ -22,7 +22,7 @@ import type { SheetColumn, SheetDoc, SheetResult, SheetRow } from "./ui_template
 
 export const KEY_UNIT = "s:unit";
 const MASTER_ROWS = ["s:formula", "s:desc", "s:price"] as const;
-const GUTTER = 48;
+const GUTTER = 64;
 const DEFAULT_WIDTH = { 수: 72, 글: 96 };
 const PAGE_ROWS = 50;
 
diff --git a/ui_template/sheet/ui_template_sheet_text.ts b/ui_template/sheet/ui_template_sheet_text.ts
index d830c843..37ac1a63 100644
--- a/ui_template/sheet/ui_template_sheet_text.ts
+++ b/ui_template/sheet/ui_template_sheet_text.ts
@@ -23,8 +23,8 @@ const TEXT = {
   Page: ["쪽", "page"],
   Error: ["#오류", "#ERR"],
   Hint: [
-    "칸을 누르고 바로 치거나 Enter · F2 로 고침 · 화살표 · Tab 으로 옮김 · Delete 로 비움",
-    "Type or press Enter / F2 to edit · arrows / Tab to move · Delete to clear",
+    "칸을 누르고 바로 치거나 Enter · F2 로 고침 · = 로 시작하면 그 칸만 식 · 화살표 · Tab 으로 옮김 · Delete 로 비움",
+    "Type or press Enter / F2 to edit · start with = for a cell formula · arrows / Tab to move · Delete to clear",
   ],
 } as const;