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bourse_app/node_modules/fancy-canvas/canvas-rendering-target.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.tryCreateCanvasRenderingTarget2D = exports.createCanvasRenderingTarget2D = exports.CanvasRenderingTarget2D = void 0;
+/**
+ * @experimental
+ */
+var CanvasRenderingTarget2D = /** @class */ (function () {
+    function CanvasRenderingTarget2D(context, mediaSize, bitmapSize) {
+        if (mediaSize.width === 0 || mediaSize.height === 0) {
+            throw new TypeError('Rendering target could only be created on a media with positive width and height');
+        }
+        this._mediaSize = mediaSize;
+        // !Number.isInteger(bitmapSize.width) || !Number.isInteger(bitmapSize.height)
+        if (bitmapSize.width === 0 || bitmapSize.height === 0) {
+            throw new TypeError('Rendering target could only be created using a bitmap with positive integer width and height');
+        }
+        this._bitmapSize = bitmapSize;
+        this._context = context;
+    }
+    CanvasRenderingTarget2D.prototype.useMediaCoordinateSpace = function (f) {
+        try {
+            this._context.save();
+            // do not use resetTransform to support old versions of Edge
+            this._context.setTransform(1, 0, 0, 1, 0, 0);
+            this._context.scale(this._horizontalPixelRatio, this._verticalPixelRatio);
+            return f({
+                context: this._context,
+                mediaSize: this._mediaSize,
+            });
+        }
+        finally {
+            this._context.restore();
+        }
+    };
+    CanvasRenderingTarget2D.prototype.useBitmapCoordinateSpace = function (f) {
+        try {
+            this._context.save();
+            // do not use resetTransform to support old versions of Edge
+            this._context.setTransform(1, 0, 0, 1, 0, 0);
+            return f({
+                context: this._context,
+                mediaSize: this._mediaSize,
+                bitmapSize: this._bitmapSize,
+                horizontalPixelRatio: this._horizontalPixelRatio,
+                verticalPixelRatio: this._verticalPixelRatio,
+            });
+        }
+        finally {
+            this._context.restore();
+        }
+    };
+    Object.defineProperty(CanvasRenderingTarget2D.prototype, "_horizontalPixelRatio", {
+        get: function () {
+            return this._bitmapSize.width / this._mediaSize.width;
+        },
+        enumerable: false,
+        configurable: true
+    });
+    Object.defineProperty(CanvasRenderingTarget2D.prototype, "_verticalPixelRatio", {
+        get: function () {
+            return this._bitmapSize.height / this._mediaSize.height;
+        },
+        enumerable: false,
+        configurable: true
+    });
+    return CanvasRenderingTarget2D;
+}());
+exports.CanvasRenderingTarget2D = CanvasRenderingTarget2D;
+/**
+ * @experimental
+ */
+function createCanvasRenderingTarget2D(binding, contextOptions) {
+    var mediaSize = binding.canvasElementClientSize;
+    var bitmapSize = binding.bitmapSize;
+    var context = binding.canvasElement.getContext('2d', contextOptions);
+    if (context === null) {
+        throw new Error('Could not get 2d drawing context from bound canvas element. Has the canvas already been set to a different context mode?');
+    }
+    return new CanvasRenderingTarget2D(context, mediaSize, bitmapSize);
+}
+exports.createCanvasRenderingTarget2D = createCanvasRenderingTarget2D;
+/**
+ * @experimental
+ */
+function tryCreateCanvasRenderingTarget2D(binding, contextOptions) {
+    var mediaSize = binding.canvasElementClientSize;
+    if (mediaSize.width === 0 || mediaSize.height === 0) {
+        return null;
+    }
+    var bitmapSize = binding.bitmapSize;
+    if (bitmapSize.width === 0 || bitmapSize.height === 0) {
+        return null;
+    }
+    var context = binding.canvasElement.getContext('2d', contextOptions);
+    if (context === null) {
+        return null;
+    }
+    return new CanvasRenderingTarget2D(context, mediaSize, bitmapSize);
+}
+exports.tryCreateCanvasRenderingTarget2D = tryCreateCanvasRenderingTarget2D;