初始化

src/components/canvas-spreadsheet/commands/FillRangeCommand.ts

@@ -0,0 +1,64 @@
+import type { CellRange, SpreadsheetCommand } from '../types';
+
+export function createFillRangeCommand(
+  persistBatch: (
+    changes: Array<{ row: number; col: number; value: unknown }>,
+  ) => void | Promise<void>,
+  before: Array<{ row: number; col: number; value: unknown }>,
+  after: Array<{ row: number; col: number; value: unknown }>,
+): SpreadsheetCommand {
+  return {
+    label: 'fillRange',
+    undo: () => persistBatch(before),
+    redo: () => persistBatch(after),
+  };
+}
+
+export function normalizeRange(range: CellRange): CellRange {
+  return {
+    startRow: Math.min(range.startRow, range.endRow),
+    startCol: Math.min(range.startCol, range.endCol),
+    endRow: Math.max(range.startRow, range.endRow),
+    endCol: Math.max(range.startCol, range.endCol),
+  };
+}
+
+export function iterateRange(
+  range: CellRange,
+  fn: (row: number, col: number) => void,
+) {
+  const r = normalizeRange(range);
+  for (let row = r.startRow; row <= r.endRow; row += 1) {
+    for (let col = r.startCol; col <= r.endCol; col += 1) {
+      fn(row, col);
+    }
+  }
+}
+
+export function iterateRanges(
+  ranges: CellRange[],
+  fn: (row: number, col: number) => void,
+) {
+  for (const range of ranges) {
+    iterateRange(range, fn);
+  }
+}
+
+export function rangesContainCell(
+  ranges: CellRange[],
+  row: number,
+  col: number,
+): boolean {
+  for (const range of ranges) {
+    const r = normalizeRange(range);
+    if (
+      row >= r.startRow &&
+      row <= r.endRow &&
+      col >= r.startCol &&
+      col <= r.endCol
+    ) {
+      return true;
+    }
+  }
+  return false;
+}