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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
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/**
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 * Provides an in browser PDF editor.
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 *
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 * @module moodle-assignfeedback_editpdf-editor
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 */
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/**
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 * Class representing a 2d rect.
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 *
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 * @namespace M.assignfeedback_editpdf
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 * @param int x
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 * @param int y
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 * @param int width
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 * @param int height
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 * @class rect
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 */
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var RECT = function(x, y, width, height) {
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    /**
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     * X coordinate.
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     * @property x
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     * @type int
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     * @public
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     */
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    this.x = x;
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    /**
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     * Y coordinate.
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     * @property y
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     * @type int
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     * @public
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     */
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    this.y = y;
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    /**
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     * Width
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     * @property width
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     * @type int
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     * @public
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     */
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    this.width = width;
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    /**
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     * Height
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     * @property height
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     * @type int
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     * @public
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     */
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    this.height = height;
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    /**
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     * Set this rect to represent the smallest possible rectangle containing this list of points.
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     * @method bounds
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     * @param M.assignfeedback_editpdf.point[]
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     * @public
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     */
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    this.bound = function(points) {
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        var minx = 0,
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            maxx = 0,
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            miny = 0,
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            maxy = 0,
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            i = 0,
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            point;
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        for (i = 0; i < points.length; i++) {
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            point = points[i];
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            if (point.x < minx || i === 0) {
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                minx = point.x;
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            }
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            if (point.x > maxx || i === 0) {
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                maxx = point.x;
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            }
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            if (point.y < miny || i === 0) {
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                miny = point.y;
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            }
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            if (point.y > maxy || i === 0) {
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                maxy = point.y;
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            }
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        }
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        this.x = minx;
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        this.y = miny;
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        this.width = maxx - minx;
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        this.height = maxy - miny;
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        // Allow chaining.
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        return this;
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    };
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    /**
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     * Checks if rect has min width.
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     * @method has_min_width
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     * @return bool true if width is more than 5px.
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     * @public
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     */
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    this.has_min_width = function() {
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        return (this.width >= 5);
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    };
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    /**
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     * Checks if rect has min height.
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     * @method has_min_height
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     * @return bool true if height is more than 5px.
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     * @public
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     */
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    this.has_min_height = function() {
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        return (this.height >= 5);
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    };
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    /**
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     * Set min. width of annotation bound.
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     * @method set_min_width
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     * @public
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     */
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    this.set_min_width = function() {
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        this.width = 5;
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    };
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    /**
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     * Set min. height of annotation bound.
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     * @method set_min_height
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     * @public
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     */
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    this.set_min_height = function() {
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        this.height = 5;
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    };
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};
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M.assignfeedback_editpdf = M.assignfeedback_editpdf || {};
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M.assignfeedback_editpdf.rect = RECT;