ngx-smart-spreadsheet
Version:
Lightweight spreadsheet module for Angular
111 lines • 17 kB
JavaScript
import generateHeader from "../header-index-generator";
import generageId from "../id-generator";
import Cell from "./cell";
class Table {
constructor(id, head, body) {
this.id = id;
this.head = head;
this.body = body;
}
static empty(rows, cols) {
const tableId = generageId();
const row = Array(cols).fill('');
const head = row.map((v, c) => generateHeader(c + 1));
const body = [];
for (let r = 0; r < rows; r++) {
body.push(row.map((v, c) => new Cell(tableId, r, c, '')));
}
return new Table(tableId, head, body);
}
static load(data) {
if (!data.length) {
throw new Error('Error: invalid data structure');
}
const tableId = generageId();
const cols = data.reduce((prev, current) => Math.max(prev, current.length), 0);
const head = Array(cols).fill('').map((v, c) => generateHeader(c + 1));
const body = [];
for (let r = 0; r < data.length; r++) {
const row = data[r];
const bodyRow = [];
for (let c = 0; c < cols; c++) {
const value = c < row.length ? row[c] : '';
bodyRow.push(new Cell(tableId, r, c, value));
}
body.push(bodyRow);
}
return new Table(tableId, head, body);
}
findCell(row, col) {
for (const record of this.body) {
for (const field of record) {
if (field.row === row && field.col === col) {
return field;
}
}
}
return null;
}
insertColumn(colIndex) {
{
const remains = this.head.slice(0, colIndex);
const updates = Array(this.head.length - colIndex + 1)
.fill('')
.map((v, c) => generateHeader((c + 1) + colIndex));
this.head = [...remains, ...updates];
}
{
const body = [];
for (let r = 0; r < this.body.length; r++) {
const row = this.body[r];
const above = row.slice(0, colIndex);
const present = new Cell(this.id, r, colIndex, '');
const below = row.slice(colIndex).map(cell => cell.withCol(cell.col + 1));
const newRow = [...above, present, ...below];
body.push(newRow);
}
this.body = body;
}
}
deleteColumn(colIndex) {
{
const remains = this.head.slice(0, colIndex);
const updates = this.head.slice(colIndex + 1)
.map((v, c) => generateHeader((c + 1) + colIndex));
this.head = [...remains, ...updates];
}
{
const body = [];
for (let r = 0; r < this.body.length; r++) {
const row = this.body[r];
const above = row.slice(0, colIndex);
const below = row.slice(colIndex + 1).map(cell => cell.withCol(cell.col + 1));
const newRow = [...above, ...below];
body.push(newRow);
}
this.body = body;
}
}
insertRow(rowIndex) {
const above = this.body.slice(0, rowIndex);
const present = Array(this.colCount).fill('')
.map((v, c) => new Cell(this.id, rowIndex, c, ''));
const below = this.body.slice(rowIndex)
.map((row) => row.map((cell) => cell.withRow(cell.row + 1)));
this.body = [...above, present, ...below];
}
deleteRow(rowIndex) {
const above = this.body.slice(0, rowIndex);
const below = this.body.slice(rowIndex + 1)
.map((row) => row.map((cell) => cell.withRow(cell.row + 1)));
this.body = [...above, ...below];
}
get rowCount() {
return this.body.length;
}
get colCount() {
return this.head.length;
}
}
export default Table;
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generateHeader from \"../header-index-generator\";\nimport generageId from \"../id-generator\";\nimport Cell from \"./cell\";\n\nclass Table {\n    constructor(\n        public id: string,\n        public head: string[],\n        public body: Cell[][]\n    ) { }\n\n    public static empty(rows: number, cols: number): Table {\n        const tableId = generageId();\n        const row = Array(cols).fill('');\n        const head = row.map((v, c) => generateHeader(c + 1));\n        const body = [];\n        for (let r = 0; r < rows; r++) {\n            body.push(row.map((v, c) => new Cell(tableId, r, c, '')));\n        }\n        return new Table(tableId, head, body);\n    }\n\n    public static load(data: string[][]): Table {\n        if (!data.length) {\n            throw new Error('Error: invalid data structure');\n        }\n        const tableId = generageId();\n        const cols = data.reduce((prev, current) => Math.max(prev, current.length), 0);\n        const head = Array(cols).fill('').map((v, c) => generateHeader(c + 1));\n        const body = [];\n        for (let r = 0; r < data.length; r++) {\n            const row = data[r];\n            const bodyRow: Cell[] = [];\n            for (let c = 0; c < cols; c++) {\n                const value = c < row.length ? row[c] : '';\n                bodyRow.push(new Cell(tableId, r, c, value));\n            }\n            body.push(bodyRow);\n        }\n        return new Table(tableId, head, body);\n    }\n\n    public findCell(row: number, col: number): Cell | null {\n        for (const record of this.body) {\n            for (const field of record) {\n                if (field.row === row && field.col === col) {\n                    return field;\n                }\n            }\n        }\n        return null;\n    }\n\n    public insertColumn(colIndex: number): void {\n        {\n            const remains = this.head.slice(0, colIndex);\n            const updates = Array(this.head.length - colIndex + 1)\n                .fill('')\n                .map((v, c) => generateHeader((c + 1) + colIndex));\n            this.head = [...remains, ...updates];\n        }\n        {\n            const body = [];\n            for (let r = 0; r < this.body.length; r++) {\n                const row = this.body[r];\n                const above = row.slice(0, colIndex);\n                const present = new Cell(this.id, r, colIndex, '');\n                const below = row.slice(colIndex).map(cell => cell.withCol(cell.col + 1));\n                const newRow = [...above, present, ...below];\n                body.push(newRow);\n            }\n            this.body = body;\n        }\n    }\n\n    public deleteColumn(colIndex: number): void {\n        {\n            const remains = this.head.slice(0, colIndex);\n            const updates = this.head.slice(colIndex + 1)\n                .map((v, c) => generateHeader((c + 1) + colIndex));\n            this.head = [...remains, ...updates];\n        }\n        {\n            const body = [];\n            for (let r = 0; r < this.body.length; r++) {\n                const row = this.body[r];\n                const above = row.slice(0, colIndex);\n                const below = row.slice(colIndex + 1).map(cell => cell.withCol(cell.col + 1));\n                const newRow = [...above, ...below];\n                body.push(newRow);\n            }\n            this.body = body;\n        }\n    }\n\n    public insertRow(rowIndex: number): void {\n        const above = this.body.slice(0, rowIndex);\n        const present = Array(this.colCount).fill('')\n            .map((v, c) => new Cell(this.id, rowIndex, c, ''));\n        const below = this.body.slice(rowIndex)\n            .map((row) => row.map((cell) => cell.withRow(cell.row + 1)));\n        this.body = [...above, present, ...below];\n    }\n\n    public deleteRow(rowIndex: number): void {\n        const above = this.body.slice(0, rowIndex);\n        const below = this.body.slice(rowIndex + 1)\n            .map((row) => row.map((cell) => cell.withRow(cell.row + 1)));\n        this.body = [...above, ...below];\n    }\n\n    public get rowCount(): number {\n        return this.body.length;\n    }\n\n    public get colCount(): number {\n        return this.head.length;\n    }\n}\n\nexport default Table;\n"]}