Initial commit

node_modules/konva/cmj/Canvas.js

@@ -0,0 +1,113 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.HitCanvas = exports.SceneCanvas = exports.Canvas = void 0;
+const Util_1 = require("./Util");
+const Context_1 = require("./Context");
+const Global_1 = require("./Global");
+const Factory_1 = require("./Factory");
+const Validators_1 = require("./Validators");
+var _pixelRatio;
+function getDevicePixelRatio() {
+    if (_pixelRatio) {
+        return _pixelRatio;
+    }
+    var canvas = Util_1.Util.createCanvasElement();
+    var context = canvas.getContext('2d');
+    _pixelRatio = (function () {
+        var devicePixelRatio = Global_1.Konva._global.devicePixelRatio || 1, backingStoreRatio = context.webkitBackingStorePixelRatio ||
+            context.mozBackingStorePixelRatio ||
+            context.msBackingStorePixelRatio ||
+            context.oBackingStorePixelRatio ||
+            context.backingStorePixelRatio ||
+            1;
+        return devicePixelRatio / backingStoreRatio;
+    })();
+    return _pixelRatio;
+}
+class Canvas {
+    constructor(config) {
+        this.pixelRatio = 1;
+        this.width = 0;
+        this.height = 0;
+        this.isCache = false;
+        var conf = config || {};
+        var pixelRatio = conf.pixelRatio || Global_1.Konva.pixelRatio || getDevicePixelRatio();
+        this.pixelRatio = pixelRatio;
+        this._canvas = Util_1.Util.createCanvasElement();
+        this._canvas.style.padding = '0';
+        this._canvas.style.margin = '0';
+        this._canvas.style.border = '0';
+        this._canvas.style.background = 'transparent';
+        this._canvas.style.position = 'absolute';
+        this._canvas.style.top = '0';
+        this._canvas.style.left = '0';
+    }
+    getContext() {
+        return this.context;
+    }
+    getPixelRatio() {
+        return this.pixelRatio;
+    }
+    setPixelRatio(pixelRatio) {
+        var previousRatio = this.pixelRatio;
+        this.pixelRatio = pixelRatio;
+        this.setSize(this.getWidth() / previousRatio, this.getHeight() / previousRatio);
+    }
+    setWidth(width) {
+        this.width = this._canvas.width = width * this.pixelRatio;
+        this._canvas.style.width = width + 'px';
+        var pixelRatio = this.pixelRatio, _context = this.getContext()._context;
+        _context.scale(pixelRatio, pixelRatio);
+    }
+    setHeight(height) {
+        this.height = this._canvas.height = height * this.pixelRatio;
+        this._canvas.style.height = height + 'px';
+        var pixelRatio = this.pixelRatio, _context = this.getContext()._context;
+        _context.scale(pixelRatio, pixelRatio);
+    }
+    getWidth() {
+        return this.width;
+    }
+    getHeight() {
+        return this.height;
+    }
+    setSize(width, height) {
+        this.setWidth(width || 0);
+        this.setHeight(height || 0);
+    }
+    toDataURL(mimeType, quality) {
+        try {
+            return this._canvas.toDataURL(mimeType, quality);
+        }
+        catch (e) {
+            try {
+                return this._canvas.toDataURL();
+            }
+            catch (err) {
+                Util_1.Util.error('Unable to get data URL. ' +
+                    err.message +
+                    ' For more info read https://konvajs.org/docs/posts/Tainted_Canvas.html.');
+                return '';
+            }
+        }
+    }
+}
+exports.Canvas = Canvas;
+Factory_1.Factory.addGetterSetter(Canvas, 'pixelRatio', undefined, (0, Validators_1.getNumberValidator)());
+class SceneCanvas extends Canvas {
+    constructor(config = { width: 0, height: 0 }) {
+        super(config);
+        this.context = new Context_1.SceneContext(this);
+        this.setSize(config.width, config.height);
+    }
+}
+exports.SceneCanvas = SceneCanvas;
+class HitCanvas extends Canvas {
+    constructor(config = { width: 0, height: 0 }) {
+        super(config);
+        this.hitCanvas = true;
+        this.context = new Context_1.HitContext(this);
+        this.setSize(config.width, config.height);
+    }
+}
+exports.HitCanvas = HitCanvas;