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| /*
* Photo Editor SDK - photoeditorsdk.com
* Copyright (c) 2013-2015 9elements GmbH
*
* Released under Attribution-NonCommercial 3.0 Unported
* http://creativecommons.org/licenses/by-nc/3.0/
*
* For commercial use, please contact us at contact@9elements.com
*/
'use strict';
Object.defineProperty(exports, '__esModule', {
value: true
});
// istanbul ignore next
var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; Eif ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { Eif (protoProps) defineProperties(Constructor.prototype, protoProps); Iif (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
// istanbul ignore next
var _get = function get(_x, _x2, _x3) { var _again = true; _function: while (_again) { var object = _x, property = _x2, receiver = _x3; _again = false; Iif (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); Iif (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x = parent; _x2 = property; _x3 = receiver; _again = true; desc = parent = undefined; continue _function; } } else Eif ('value' in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } };
// istanbul ignore next
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
// istanbul ignore next
function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
// istanbul ignore next
function _inherits(subClass, superClass) { Iif (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); Eif (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
var _operation = require('./operation');
var _operation2 = _interopRequireDefault(_operation);
var _libMathVector2 = require('../lib/math/vector2');
var _libMathVector22 = _interopRequireDefault(_libMathVector2);
var _renderersWebglRendererJs = require('../renderers/webgl-renderer.js');
var _renderersWebglRendererJs2 = _interopRequireDefault(_renderersWebglRendererJs);
/**
* An operation that can crop out a part of the image
*
* @class
* @alias ImglyKit.Operations.CropOperation
* @extends ImglyKit.Operation
*/
var CropOperation = (function (_Operation) {
_inherits(CropOperation, _Operation);
function CropOperation() {
_classCallCheck(this, CropOperation);
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
_get(Object.getPrototypeOf(CropOperation.prototype), 'constructor', this).apply(this, args);
}
/**
* A unique string that identifies this operation. Can be used to select
* operations.
* @type {String}
*/
/**
* Rotates and crops the image using WebGL
* @param {WebGLRenderer} renderer
* @override
* @private
*/
/* istanbul ignore next */
_createClass(CropOperation, [{
key: '_renderWebGL',
value: function _renderWebGL(renderer) {
var start = this._options.start.clone();
var end = this._options.end.clone();
var size = end.clone().subtract(start);
var fragmentShader = null;
if (!this._glslPrograms[renderer.id]) {
this._glslPrograms[renderer.id] = renderer.setupGLSLProgram(null, fragmentShader, textureCoordinates);
}
var textureCoordinates = new Float32Array([
// First triangle
start.x, 1.0 - end.y, end.x, 1.0 - end.y, start.x, 1.0 - start.y,
// Second triangle
start.x, 1.0 - start.y, end.x, 1.0 - end.y, end.x, 1.0 - start.y]);
renderer.runProgram(this._glslPrograms[renderer.id], { textureCoordinates: textureCoordinates });
}
/**
* Crops the image using Canvas
* @param {CanvasRenderer} renderer
* @override
* @private
*/
}, {
key: '_renderCanvas',
value: function _renderCanvas(renderer) {
var canvas = renderer.getCanvas();
var dimensions = new _libMathVector22['default'](canvas.width, canvas.height);
var newDimensions = this.getNewDimensions(renderer);
// Create a temporary canvas to draw to
var newCanvas = renderer.createCanvas();
newCanvas.width = newDimensions.x;
newCanvas.height = newDimensions.y;
var newContext = newCanvas.getContext('2d');
// The upper left corner of the cropped area on the original image
var startPosition = this._options.start.clone();
if (this._options.numberFormat === 'relative') {
startPosition.multiply(dimensions);
}
// Draw the source canvas onto the new one
newContext.drawImage(canvas, startPosition.x, startPosition.y, // source x, y
newDimensions.x, newDimensions.y, // source dimensions
0, 0, // destination x, y
newDimensions.x, newDimensions.y // destination dimensions
);
// Set the new canvas
renderer.setCanvas(newCanvas);
}
/**
* Gets the new dimensions
* @param {Renderer} renderer
* @param {Vector2} [dimensions]
* @return {Vector2}
*/
}, {
key: 'getNewDimensions',
value: function getNewDimensions(renderer, dimensions) {
var canvas = renderer.getCanvas();
dimensions = dimensions || new _libMathVector22['default'](canvas.width, canvas.height);
var newDimensions = this._options.end.clone().subtract(this._options.start);
if (this._options.numberFormat === 'relative') {
newDimensions.multiply(dimensions);
}
return newDimensions;
}
}]);
return CropOperation;
})(_operation2['default']);
CropOperation.prototype.identifier = 'crop';
/**
* Specifies the available options for this operation
* @type {Object}
*/
CropOperation.prototype.availableOptions = {
start: { type: 'vector2', required: true, 'default': new _libMathVector22['default'](0, 0) },
end: { type: 'vector2', required: true, 'default': new _libMathVector22['default'](1, 1) }
};
exports['default'] = CropOperation;
module.exports = exports['default'];
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photoeditorsdk.com\n * Copyright (c) 2013-2015 9elements GmbH\n *\n * Released under Attribution-NonCommercial 3.0 Unported\n * http://creativecommons.org/licenses/by-nc/3.0/\n *\n * For commercial use, please contact us at contact@9elements.com\n */\n\nimport Operation from './operation'\nimport Vector2 from '../lib/math/vector2'\nimport WebGLRenderer from '../renderers/webgl-renderer.js'\n\n/**\n * An operation that can crop out a part of the image\n *\n * @class\n * @alias ImglyKit.Operations.CropOperation\n * @extends ImglyKit.Operation\n */\nclass CropOperation extends Operation {\n  constructor (...args) {\n    super(...args)\n  }\n\n  /**\n   * Rotates and crops the image using WebGL\n   * @param  {WebGLRenderer} renderer\n   * @override\n   * @private\n   */\n  /* istanbul ignore next */\n  _renderWebGL (renderer) {\n    const start = this._options.start.clone()\n    const end = this._options.end.clone()\n    const size = end.clone().subtract(start)\n    const fragmentShader = null\n\n    if (!this._glslPrograms[renderer.id]) {\n      this._glslPrograms[renderer.id] = renderer.setupGLSLProgram(null, fragmentShader, textureCoordinates)\n    }\n\n    const textureCoordinates = new Float32Array([\n        // First triangle\n        start.x, 1.0 - end.y,\n        end.x, 1.0 - end.y,\n        start.x, 1.0 - start.y,\n\n        // Second triangle\n        start.x, 1.0 - start.y,\n        end.x, 1.0 - end.y,\n        end.x, 1.0 - start.y\n      ])\n    renderer.runProgram(this._glslPrograms[renderer.id], { textureCoordinates })\n  }\n\n  /**\n   * Crops the image using Canvas\n   * @param {CanvasRenderer} renderer\n   * @override\n   * @private\n   */\n  _renderCanvas (renderer) {\n    var canvas = renderer.getCanvas()\n    var dimensions = new Vector2(canvas.width, canvas.height)\n\n    var newDimensions = this.getNewDimensions(renderer)\n\n    // Create a temporary canvas to draw to\n    var newCanvas = renderer.createCanvas()\n    newCanvas.width = newDimensions.x\n    newCanvas.height = newDimensions.y\n    var newContext = newCanvas.getContext('2d')\n\n    // The upper left corner of the cropped area on the original image\n    var startPosition = this._options.start.clone()\n\n    if (this._options.numberFormat === 'relative') {\n      startPosition.multiply(dimensions)\n    }\n\n    // Draw the source canvas onto the new one\n    newContext.drawImage(canvas,\n      startPosition.x, startPosition.y, // source x, y\n      newDimensions.x, newDimensions.y, // source dimensions\n      0, 0, // destination x, y\n      newDimensions.x, newDimensions.y // destination dimensions\n      )\n\n    // Set the new canvas\n    renderer.setCanvas(newCanvas)\n  }\n\n  /**\n   * Gets the new dimensions\n   * @param {Renderer} renderer\n   * @param {Vector2} [dimensions]\n   * @return {Vector2}\n   */\n  getNewDimensions (renderer, dimensions) {\n    let canvas = renderer.getCanvas()\n    dimensions = dimensions || new Vector2(canvas.width, canvas.height)\n\n    let newDimensions = this._options.end\n      .clone()\n      .subtract(this._options.start)\n\n    if (this._options.numberFormat === 'relative') {\n      newDimensions.multiply(dimensions)\n    }\n\n    return newDimensions\n  }\n}\n\n/**\n * A unique string that identifies this operation. Can be used to select\n * operations.\n * @type {String}\n */\nCropOperation.prototype.identifier = 'crop'\n\n/**\n * Specifies the available options for this operation\n * @type {Object}\n */\nCropOperation.prototype.availableOptions = {\n  start: { type: 'vector2', required: true, default: new Vector2(0, 0) },\n  end: { type: 'vector2', required: true, default: new Vector2(1, 1) }\n}\n\nexport default CropOperation\n"]} |