Function cells

packages/models/src/interfaces/grid.ts:889–916

(
    editor: Editor,
    at?: GridLocation,
    opitons: GridGeneratorCellsOptions = {},
  )

  },

  *cells(
    editor: Editor,
    at?: GridLocation,
    opitons: GridGeneratorCellsOptions = {},
  ): Generator<[GridCell, number, number]> {
    if (!at || Path.isPath(at)) {
      const entry = Grid.above(editor, at)
      if (!entry) return
      at = entry
    }
    const [grid] = at
    const { children } = grid
    const { startRow = 0, startCol = 0, endRow = children.length - 1, reverse = false } = opitons
    let r = reverse ? Math.min(endRow, children.length - 1) : startRow
    while (reverse ? r >= startRow : r <= endRow) {
      const row = children[r]
      if (!row) break
      const { children: cells } = row
      const { endCol = cells.length - 1 } = opitons
      let c = reverse ? Math.min(endCol, cells.length - 1) : startCol
      while (reverse ? c >= startCol : c <= endCol) {
        const cell = cells[c]
        yield [cell, r, c]
        c = reverse ? c - 1 : c + 1
      }
      r = reverse ? r - 1 : r + 1
    }
  },
  /**
   * 如果选区中的开始或结束位置处于被合并的单元格，就把选区边界定位在最终合并的单元格内
   * @param editor