pdf-lib/es/core/objects/PDFArray.js

Create and modify PDF files with JavaScript

import { __extends, __spreadArrays } from "tslib";
import PDFNumber from "./PDFNumber";
import PDFObject from "./PDFObject";
import CharCodes from "../syntax/CharCodes";
import { PDFArrayIsNotRectangleError } from "../errors";
var PDFArray = /** @class */ (function (_super) {
    __extends(PDFArray, _super);
    function PDFArray(context) {
        var _this = _super.call(this) || this;
        _this.array = [];
        _this.context = context;
        return _this;
    }
    PDFArray.prototype.size = function () {
        return this.array.length;
    };
    PDFArray.prototype.push = function (object) {
        this.array.push(object);
    };
    PDFArray.prototype.insert = function (index, object) {
        this.array.splice(index, 0, object);
    };
    PDFArray.prototype.indexOf = function (object) {
        var index = this.array.indexOf(object);
        return index === -1 ? undefined : index;
    };
    PDFArray.prototype.remove = function (index) {
        this.array.splice(index, 1);
    };
    PDFArray.prototype.set = function (idx, object) {
        this.array[idx] = object;
    };
    PDFArray.prototype.get = function (index) {
        return this.array[index];
    };
    PDFArray.prototype.lookupMaybe = function (index) {
        var _a;
        var types = [];
        for (var _i = 1; _i < arguments.length; _i++) {
            types[_i - 1] = arguments[_i];
        }
        return (_a = this.context).lookupMaybe.apply(_a, __spreadArrays([this.get(index)], types));
    };
    PDFArray.prototype.lookup = function (index) {
        var _a;
        var types = [];
        for (var _i = 1; _i < arguments.length; _i++) {
            types[_i - 1] = arguments[_i];
        }
        return (_a = this.context).lookup.apply(_a, __spreadArrays([this.get(index)], types));
    };
    PDFArray.prototype.asRectangle = function () {
        if (this.size() !== 4)
            throw new PDFArrayIsNotRectangleError(this.size());
        var lowerLeftX = this.lookup(0, PDFNumber).asNumber();
        var lowerLeftY = this.lookup(1, PDFNumber).asNumber();
        var upperRightX = this.lookup(2, PDFNumber).asNumber();
        var upperRightY = this.lookup(3, PDFNumber).asNumber();
        var x = lowerLeftX;
        var y = lowerLeftY;
        var width = upperRightX - lowerLeftX;
        var height = upperRightY - lowerLeftY;
        return { x: x, y: y, width: width, height: height };
    };
    PDFArray.prototype.asArray = function () {
        return this.array.slice();
    };
    PDFArray.prototype.clone = function (context) {
        var clone = PDFArray.withContext(context || this.context);
        for (var idx = 0, len = this.size(); idx < len; idx++) {
            clone.push(this.array[idx]);
        }
        return clone;
    };
    PDFArray.prototype.toString = function () {
        var arrayString = '[ ';
        for (var idx = 0, len = this.size(); idx < len; idx++) {
            arrayString += this.get(idx).toString();
            arrayString += ' ';
        }
        arrayString += ']';
        return arrayString;
    };
    PDFArray.prototype.sizeInBytes = function () {
        var size = 3;
        for (var idx = 0, len = this.size(); idx < len; idx++) {
            size += this.get(idx).sizeInBytes() + 1;
        }
        return size;
    };
    PDFArray.prototype.copyBytesInto = function (buffer, offset) {
        var initialOffset = offset;
        buffer[offset++] = CharCodes.LeftSquareBracket;
        buffer[offset++] = CharCodes.Space;
        for (var idx = 0, len = this.size(); idx < len; idx++) {
            offset += this.get(idx).copyBytesInto(buffer, offset);
            buffer[offset++] = CharCodes.Space;
        }
        buffer[offset++] = CharCodes.RightSquareBracket;
        return offset - initialOffset;
    };
    PDFArray.withContext = function (context) { return new PDFArray(context); };
    return PDFArray;
}(PDFObject));
export default PDFArray;
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