@ngageoint/geopackage/dist/lib/canvas/canvas.js

GeoPackage JavaScript Library

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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};
var __generator = (this && this.__generator) || function (thisArg, body) {
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Canvas = void 0;
var Canvas = /** @class */ (function () {
    function Canvas() {
    }
    Canvas.registerCanvasAdapter = function (adapter) {
        Canvas.adapter = new adapter();
    };
    Canvas.adapterInitialized = function () {
        return Canvas.adapter != null && Canvas.adapter.isInitialized();
    };
    Canvas.initializeAdapter = function () {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        if (!!Canvas.adapter.isInitialized()) return [3 /*break*/, 2];
                        return [4 /*yield*/, Canvas.adapter.initialize()];
                    case 1:
                        _a.sent();
                        _a.label = 2;
                    case 2: return [2 /*return*/];
                }
            });
        });
    };
    Canvas.checkCanvasAdapter = function () {
        if (!Canvas.adapter) {
            throw new Error('Canvas adapter not registered.');
        }
        else if (!Canvas.adapter.isInitialized()) {
            throw new Error('Canvas adapter not initialized.');
        }
    };
    Canvas.create = function (width, height) {
        Canvas.checkCanvasAdapter();
        return Canvas.adapter.create(width, height);
    };
    Canvas.createImage = function (data, contentType) {
        if (contentType === void 0) { contentType = 'image/png'; }
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                Canvas.checkCanvasAdapter();
                return [2 /*return*/, Canvas.adapter.createImage(data, contentType)];
            });
        });
    };
    Canvas.createImageData = function (width, height) {
        Canvas.checkCanvasAdapter();
        return Canvas.adapter.createImageData(width, height);
    };
    Canvas.disposeCanvas = function (canvas) {
        Canvas.checkCanvasAdapter();
        Canvas.adapter.disposeCanvas(canvas);
    };
    Canvas.measureText = function (context, fontFace, fontSize, text) {
        Canvas.checkCanvasAdapter();
        return Canvas.adapter.measureText(context, fontFace, fontSize, text);
    };
    Canvas.drawText = function (context, text, location, fontFace, fontSize, fontColor) {
        Canvas.checkCanvasAdapter();
        return Canvas.adapter.drawText(context, text, location, fontFace, fontSize, fontColor);
    };
    Canvas.scaleImage = function (image, scale) {
        Canvas.checkCanvasAdapter();
        return Canvas.adapter.scaleImage(image, scale);
    };
    Canvas.scaleImageToDimensions = function (image, scaledWidth, scaledHeight) {
        Canvas.checkCanvasAdapter();
        return Canvas.adapter.scaleImageToDimensions(image, scaledWidth, scaledHeight);
    };
    Canvas.toDataURL = function (canvas, format) {
        if (format === void 0) { format = 'image/png'; }
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                Canvas.checkCanvasAdapter();
                return [2 /*return*/, Canvas.adapter.toDataURL(canvas, format)];
            });
        });
    };
    Canvas.disposeImage = function (image) {
        Canvas.checkCanvasAdapter();
        Canvas.adapter.disposeImage(image);
    };
    Canvas.adapter = undefined;
    return Canvas;
}());
exports.Canvas = Canvas;
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