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{\r\n    'use strict';\r\n\r\n    if (!$.version || $.version.major < 2) {\r\n        throw new Error('This version of OpenSeadragonSelection requires OpenSeadragon version 2.0.0+');\r\n    }\r\n\r\n    $.Viewer.prototype.selection = function(options) {\r\n        if (!this.selectionInstance || options) {\r\n            options = options || {};\r\n            options.viewer = this;\r\n            this.selectionInstance = new $.Selection(options);\r\n        }\r\n        return this.selectionInstance;\r\n    };\r\n\r\n\r\n    /**\r\n    * @class Selection\r\n    * @classdesc Provides functionality for selecting part of an image\r\n    * @memberof OpenSeadragon\r\n    * @param {Object} options\r\n    */\r\n    $.Selection = function ( options ) {\r\n\r\n        $.extend( true, this, {\r\n            // internal state properties\r\n            viewer:                  null,\r\n            isSelecting:             false,\r\n            buttonActiveImg:         false,\r\n            rectDone:                true,\r\n\r\n            // options\r\n            element:                 null,\r\n            toggleButton:            null,\r\n            showSelectionControl:    true,\r\n            showConfirmDenyButtons:  true,\r\n            styleConfirmDenyButtons: true,\r\n            returnPixelCoordinates:  true,\r\n            keyboardShortcut:        'c',\r\n            rect:                    null,\r\n            allowRotation:           true,\r\n            startRotated:            false, // useful for rotated crops\r\n            startRotatedHeight:      0.1,\r\n            restrictToImage:         false,\r\n            onSelection:             null,\r\n            prefixUrl:               null,\r\n            navImages:               {\r\n                selection: {\r\n                    REST:   'selection_rest.png',\r\n                    GROUP:  'selection_grouphover.png',\r\n                    HOVER:  'selection_hover.png',\r\n                    DOWN:   'selection_pressed.png'\r\n                },\r\n                selectionConfirm: {\r\n                    REST:   'selection_confirm_rest.png',\r\n                    GROUP:  'selection_confirm_grouphover.png',\r\n                    HOVER:  'selection_confirm_hover.png',\r\n                    DOWN:   'selection_confirm_pressed.png'\r\n                },\r\n                selectionCancel: {\r\n                    REST:   'selection_cancel_rest.png',\r\n                    GROUP:  'selection_cancel_grouphover.png',\r\n                    HOVER:  'selection_cancel_hover.png',\r\n                    DOWN:   'selection_cancel_pressed.png'\r\n                },\r\n            },\r\n            handleStyle: {\r\n                top:        '50%',\r\n                left:       '50%',\r\n                width:      '6px',\r\n                height:     '6px',\r\n                margin:     '-4px 0 0 -4px',\r\n                background: '#000',\r\n                border:     '1px solid #ccc'\r\n            },\r\n            cornersStyle: {\r\n                width:      '6px',\r\n                height:     '6px',\r\n                background: '#000',\r\n                border:     '1px solid #ccc'\r\n            }\r\n\r\n        }, options );\r\n\r\n        $.extend( true, this.navImages, this.viewer.navImages );\r\n\r\n        if (!this.element) {\r\n            this.element = $.makeNeutralElement('div');\r\n            this.element.style.background = 'rgba(0, 0, 0, 0.1)';\r\n            this.element.className        = 'selection-box';\r\n        }\r\n        this.borders = this.borders || [];\r\n        var handle;\r\n        var corners = [];\r\n        for (var i = 0; i < 4; i++) {\r\n            if (!this.borders[i]) {\r\n                this.borders[i]                  = $.makeNeutralElement('div');\r\n                this.borders[i].className        = 'border-' + i;\r\n                this.borders[i].style.position   = 'absolute';\r\n                this.borders[i].style.width      = '1px';\r\n                this.borders[i].style.height     = '1px';\r\n                this.borders[i].style.background = '#fff';\r\n            }\r\n\r\n            handle                  = $.makeNeutralElement('div');\r\n            handle.className        = 'border-' + i + '-handle';\r\n            handle.style.position   = 'absolute';\r\n            handle.style.top        = this.handleStyle.top;\r\n            handle.style.left       = this.handleStyle.left;\r\n            handle.style.width      = this.handleStyle.width;\r\n            handle.style.height     = this.handleStyle.height;\r\n            handle.style.margin     = this.handleStyle.margin;\r\n            handle.style.background = this.handleStyle.background;\r\n            handle.style.border     = this.handleStyle.border;\r\n            new $.MouseTracker({\r\n                element:     this.borders[i],\r\n                dragHandler: onBorderDrag.bind(this, i),\r\n                dragEndHandler: onBorderDragEnd.bind(this, i),\r\n            });\r\n\r\n            corners[i]                  = $.makeNeutralElement('div');\r\n            corners[i].className        = 'corner-' + i + '-handle';\r\n            corners[i].style.position   = 'absolute';\r\n            corners[i].style.width      = this.cornersStyle.width;\r\n            corners[i].style.height     = this.cornersStyle.height;\r\n            corners[i].style.background = this.cornersStyle.background;\r\n            corners[i].style.border     = this.cornersStyle.border;\r\n            new $.MouseTracker({\r\n                element:     corners[i],\r\n                dragHandler: onBorderDrag.bind(this, i + 0.5),\r\n                dragEndHandler: onBorderDragEnd.bind(this, i),\r\n            });\r\n\r\n            this.borders[i].appendChild(handle);\r\n            this.element.appendChild(this.borders[i]);\r\n            // defer corners, so they are appended last\r\n            setTimeout(this.element.appendChild.bind(this.element, corners[i]), 0);\r\n        }\r\n        this.borders[0].style.top = 0;\r\n        this.borders[0].style.width = '100%';\r\n        this.borders[1].style.right = 0;\r\n        this.borders[1].style.height = '100%';\r\n        this.borders[2].style.bottom = 0;\r\n        this.borders[2].style.width = '100%';\r\n        this.borders[3].style.left = 0;\r\n        this.borders[3].style.height = '100%';\r\n        corners[0].style.top = '-3px';\r\n        corners[0].style.left = '-3px';\r\n        corners[1].style.top = '-3px';\r\n        corners[1].style.right = '-3px';\r\n        corners[2].style.bottom = '-3px';\r\n        corners[2].style.right = '-3px';\r\n        corners[3].style.bottom = '-3px';\r\n        corners[3].style.left = '-3px';\r\n\r\n        if (!this.overlay) {\r\n            this.overlay = new $.SelectionOverlay(this.element, this.rect || new $.SelectionRect());\r\n        }\r\n\r\n        this.innerTracker = new $.MouseTracker({\r\n            element:            this.element,\r\n            clickTimeThreshold: this.viewer.clickTimeThreshold,\r\n            clickDistThreshold: this.viewer.clickDistThreshold,\r\n            dragHandler:        $.delegate( this, onInsideDrag ),\r\n            dragEndHandler:     $.delegate( this, onInsideDragEnd ),\r\n            // keyHandler:         $.delegate( this, onKeyPress ),\r\n            clickHandler:       $.delegate( this, onClick ),\r\n            // scrollHandler:      $.delegate( this.viewer, this.viewer.innerTracker.scrollHandler ),\r\n            // pinchHandler:       $.delegate( this.viewer, this.viewer.innerTracker.pinchHandler ),\r\n        });\r\n\r\n        this.outerTracker = new $.MouseTracker({\r\n            element:            this.viewer.canvas,\r\n            clickTimeThreshold: this.viewer.clickTimeThreshold,\r\n            clickDistThreshold: this.viewer.clickDistThreshold,\r\n            dragHandler:        $.delegate( this, onOutsideDrag ),\r\n            dragEndHandler:     $.delegate( this, onOutsideDragEnd ),\r\n            clickHandler:       $.delegate( this, onClick ),\r\n            startDisabled:      !this.isSelecting,\r\n        });\r\n\r\n        if (this.keyboardShortcut) {\r\n            $.addEvent(\r\n                this.viewer.container,\r\n                'keypress',\r\n                $.delegate(this, onKeyPress),\r\n                false\r\n            );\r\n        }\r\n\r\n        var prefix = this.prefixUrl || this.viewer.prefixUrl || '';\r\n        var useGroup = this.viewer.buttons && this.viewer.buttons.buttons;\r\n        var anyButton = useGroup ? this.viewer.buttons.buttons[0] : null;\r\n        var onFocusHandler = anyButton ? anyButton.onFocus : null;\r\n        var onBlurHandler = anyButton ? anyButton.onBlur : null;\r\n        if (this.showSelectionControl) {\r\n            this.toggleButton = new $.Button({\r\n                element:    this.toggleButton ? $.getElement( this.toggleButton ) : null,\r\n                clickTimeThreshold: this.viewer.clickTimeThreshold,\r\n                clickDistThreshold: this.viewer.clickDistThreshold,\r\n                tooltip:    $.getString('Tooltips.SelectionToggle') || 'Toggle selection',\r\n                srcRest:    prefix + this.navImages.selection.REST,\r\n                srcGroup:   prefix + this.navImages.selection.GROUP,\r\n                srcHover:   prefix + this.navImages.selection.HOVER,\r\n                srcDown:    prefix + this.navImages.selection.DOWN,\r\n                onRelease:  this.toggleState.bind( this ),\r\n                onFocus:    onFocusHandler,\r\n                onBlur:     onBlurHandler\r\n            });\r\n            if (useGroup) {\r\n                this.viewer.buttons.buttons.push(this.toggleButton);\r\n                this.viewer.buttons.element.appendChild(this.toggleButton.element);\r\n            }\r\n            if (this.toggleButton.imgDown) {\r\n                this.buttonActiveImg = this.toggleButton.imgDown.cloneNode(true);\r\n                this.toggleButton.element.appendChild(this.buttonActiveImg);\r\n            }\r\n        }\r\n        if (this.showConfirmDenyButtons) {\r\n            this.confirmButton = new $.Button({\r\n                element:    this.confirmButton ? $.getElement( this.confirmButton ) : null,\r\n                clickTimeThreshold: this.viewer.clickTimeThreshold,\r\n                clickDistThreshold: this.viewer.clickDistThreshold,\r\n                tooltip:    $.getString('Tooltips.SelectionConfirm') || 'Confirm selection',\r\n                srcRest:    prefix + this.navImages.selectionConfirm.REST,\r\n                srcGroup:   prefix + this.navImages.selectionConfirm.GROUP,\r\n                srcHover:   prefix + this.navImages.selectionConfirm.HOVER,\r\n                srcDown:    prefix + this.navImages.selectionConfirm.DOWN,\r\n                onRelease:  this.confirm.bind( this ),\r\n                onFocus:    onFocusHandler,\r\n                onBlur:     onBlurHandler\r\n            });\r\n            var confirm = this.confirmButton.element;\r\n            confirm.classList.add('confirm-button');\r\n            this.element.appendChild(confirm);\r\n\r\n            this.cancelButton = new $.Button({\r\n                element:    this.cancelButton ? $.getElement( this.cancelButton ) : null,\r\n                clickTimeThreshold: this.viewer.clickTimeThreshold,\r\n                clickDistThreshold: this.viewer.clickDistThreshold,\r\n                tooltip:    $.getString('Tooltips.SelectionConfirm') || 'Cancel selection',\r\n                srcRest:    prefix + this.navImages.selectionCancel.REST,\r\n                srcGroup:   prefix + this.navImages.selectionCancel.GROUP,\r\n                srcHover:   prefix + this.navImages.selectionCancel.HOVER,\r\n                srcDown:    prefix + this.navImages.selectionCancel.DOWN,\r\n                onRelease:  this.cancel.bind( this ),\r\n                onFocus:    onFocusHandler,\r\n                onBlur:     onBlurHandler\r\n            });\r\n            var cancel = this.cancelButton.element;\r\n            cancel.classList.add('cancel-button');\r\n            this.element.appendChild(cancel);\r\n\r\n            if (this.styleConfirmDenyButtons) {\r\n                confirm.style.position = 'absolute';\r\n                confirm.style.top = '50%';\r\n                confirm.style.left = '50%';\r\n                confirm.style.transform = 'translate(-100%, -50%)';\r\n\r\n                cancel.style.position = 'absolute';\r\n                cancel.style.top = '50%';\r\n                cancel.style.left = '50%';\r\n                cancel.style.transform = 'translate(0, -50%)';\r\n            }\r\n        }\r\n\r\n        this.viewer.addHandler('selection', this.onSelection);\r\n\r\n        this.viewer.addHandler('open', this.draw.bind(this));\r\n        this.viewer.addHandler('animation', this.draw.bind(this));\r\n        this.viewer.addHandler('resize', this.draw.bind(this));\r\n        this.viewer.addHandler('rotate', this.draw.bind(this));\r\n    };\r\n\r\n    $.extend( $.Selection.prototype, $.ControlDock.prototype, /** @lends OpenSeadragon.Selection.prototype */{\r\n\r\n        toggleState: function() {\r\n            return this.setState(!this.isSelecting);\r\n        },\r\n\r\n        setState: function(enabled) {\r\n            this.isSelecting = enabled;\r\n            // this.viewer.innerTracker.setTracking(!enabled);\r\n            this.outerTracker.setTracking(enabled);\r\n            enabled ? this.draw() : this.undraw();\r\n            if (this.buttonActiveImg) {\r\n                this.buttonActiveImg.style.visibility = enabled ? 'visible' : 'hidden';\r\n            }\r\n            this.viewer.raiseEvent('selection_toggle', {enabled: enabled});\r\n            return this;\r\n        },\r\n\r\n        setAllowRotation: function(allowRotation) {\r\n            this.allowRotation = allowRotation;\r\n        },\r\n\r\n        enable: function() {\r\n            return this.setState(true);\r\n        },\r\n\r\n        disable: function() {\r\n            return this.setState(false);\r\n        },\r\n\r\n        draw: function() {\r\n            if (this.rect) {\r\n                this.overlay.update(this.rect.normalize());\r\n                this.overlay.drawHTML(this.viewer.drawer.container, this.viewer.viewport);\r\n            }\r\n            return this;\r\n        },\r\n\r\n        undraw: function() {\r\n            this.overlay.destroy();\r\n            this.rect = null;\r\n            return this;\r\n        },\r\n\r\n        confirm: function() {\r\n            if (this.rect) {\r\n                var result = this.rect.normalize();\r\n                if (this.returnPixelCoordinates) {\r\n                    var real = this.viewer.viewport.viewportToImageRectangle(result);\r\n                    real = $.SelectionRect.fromRect(real).round();\r\n                    real.rotation = result.rotation;\r\n                    result = real;\r\n                }\r\n                this.viewer.raiseEvent('selection', result);\r\n                this.undraw();\r\n            }\r\n            return this;\r\n        },\r\n\r\n        cancel: function() {\r\n            /*\r\n             * These two lines have been added to fix a issue with mobile where the selection is just a pinpoint after the first drag\r\n             * For some reason disabling then re-enabling the tracking fixes this issue.\r\n             */\r\n            this.outerTracker.setTracking(false);\r\n            this.outerTracker.setTracking(true);\r\n            this.viewer.raiseEvent('selection_cancel', false);\r\n            return this.undraw();\r\n        },\r\n    });\r\n\r\n    function onOutsideDrag(e) {\r\n        // Disable move when makeing new selection\r\n        this.viewer.setMouseNavEnabled(false);\r\n        var delta = this.viewer.viewport.deltaPointsFromPixels(e.delta, true);\r\n        var end = this.viewer.viewport.pointFromPixel(e.position, true);\r\n        var start = new $.Point(end.x - delta.x, end.y - delta.y);\r\n        if (!this.rect) {\r\n            if (this.restrictToImage) {\r\n                if (!pointIsInImage(this, start)) {\r\n                    return;\r\n                }\r\n                restrictVector(delta, end);\r\n            }\r\n            if (this.startRotated) {\r\n                this.rotatedStartPoint = start;\r\n                this.rect = getPrerotatedRect(start, end, this.startRotatedHeight);\r\n            } else {\r\n                this.rect = new $.SelectionRect(start.x, start.y, delta.x, delta.y);\r\n            }\r\n            this.rectDone = false;\r\n        } else {\r\n            var oldRect;\r\n            if (this.restrictToImage) {\r\n                oldRect = this.rect.clone();\r\n            }\r\n            if (this.rectDone) {\r\n                // All rotation as needed.\r\n                if (this.allowRotation) {\r\n                    var angle1 = this.rect.getAngleFromCenter(start);\r\n                    var angle2 = this.rect.getAngleFromCenter(end);\r\n                    this.rect.rotation = (this.rect.rotation + angle1 - angle2) % Math.PI;\r\n                }\r\n            } else {\r\n                if (this.startRotated) {\r\n                    this.rect = getPrerotatedRect(this.rotatedStartPoint, end, this.startRotatedHeight);\r\n                } else {\r\n                    this.rect.width += delta.x;\r\n                    this.rect.height += delta.y;\r\n                }\r\n            }\r\n            var bounds = this.viewer.world.getHomeBounds();\r\n            if (this.restrictToImage && !this.rect.fitsIn(new $.Rect(0, 0, bounds.width, bounds.height))) {\r\n                this.rect = oldRect;\r\n            }\r\n        }\r\n        this.draw();\r\n    }\r\n\r\n    function onOutsideDragEnd() {\r\n        // Resizing a selection will function\r\n        // when drawn any direction\r\n        if (this.rect.width < 0){\r\n            this.rect.x += this.rect.width;\r\n            this.rect.width = Math.abs(this.rect.width);\r\n        }\r\n        if (this.rect.height < 0){\r\n            this.rect.y += this.rect.height;\r\n            this.rect.height = Math.abs(this.rect.height);\r\n        }\r\n        \r\n        // Eable move after new selection is done\r\n        this.viewer.setMouseNavEnabled(true);\r\n        this.rectDone = true;\r\n    }\r\n\r\n    function onClick() {\r\n        this.viewer.canvas.focus();\r\n    }\r\n\r\n    function onInsideDrag(e) {\r\n        $.addClass(this.element, 'dragging');\r\n        var delta = this.viewer.viewport.deltaPointsFromPixels(e.delta, true);\r\n        this.rect.x += delta.x;\r\n        this.rect.y += delta.y;\r\n        var bounds = this.viewer.world.getHomeBounds();\r\n        if (this.restrictToImage && !this.rect.fitsIn(new $.Rect(0, 0, bounds.width, bounds.height))) {\r\n            this.rect.x -= delta.x;\r\n            this.rect.y -= delta.y;\r\n        }\r\n        this.draw();\r\n    }\r\n\r\n    function onInsideDragEnd() {\r\n        $.removeClass(this.element, 'dragging');\r\n    }\r\n\r\n    function onBorderDrag(border, e) {\r\n        var delta = e.delta;\r\n        var rotation = this.rect.getDegreeRotation();\r\n        var center;\r\n        var oldRect = this.restrictToImage ? this.rect.clone() : null;\r\n        if (rotation !== 0) {\r\n            // adjust vector\r\n            delta = delta.rotate(-1 * rotation, new $.Point(0, 0));\r\n            center = this.rect.getCenter();\r\n        }\r\n        delta = this.viewer.viewport.deltaPointsFromPixels(delta, true);\r\n        switch (border) {\r\n            case 0:\r\n                this.rect.y += delta.y;\r\n                this.rect.height -= delta.y;\r\n                break;\r\n            case 1:\r\n                this.rect.width += delta.x;\r\n                break;\r\n            case 2:\r\n                this.rect.height += delta.y;\r\n                break;\r\n            case 3:\r\n                this.rect.x += delta.x;\r\n                this.rect.width -= delta.x;\r\n                break;\r\n            case 0.5:\r\n                this.rect.y += delta.y;\r\n                this.rect.height -= delta.y;\r\n                this.rect.x += delta.x;\r\n                this.rect.width -= delta.x;\r\n                break;\r\n            case 1.5:\r\n                this.rect.y += delta.y;\r\n                this.rect.height -= delta.y;\r\n                this.rect.width += delta.x;\r\n                break;\r\n            case 2.5:\r\n                this.rect.width += delta.x;\r\n                this.rect.height += delta.y;\r\n                break;\r\n            case 3.5:\r\n                this.rect.height += delta.y;\r\n                this.rect.x += delta.x;\r\n                this.rect.width -= delta.x;\r\n                break;\r\n        }\r\n        if (rotation !== 0) {\r\n            // calc center deviation\r\n            var newCenter = this.rect.getCenter();\r\n            // rotate new center around old\r\n            var target = newCenter.rotate(rotation, center);\r\n            // adjust new center\r\n            delta = target.minus(newCenter);\r\n            this.rect.x += delta.x;\r\n            this.rect.y += delta.y;\r\n        }\r\n        var bounds = this.viewer.world.getHomeBounds();\r\n        if (this.restrictToImage && !this.rect.fitsIn(new $.Rect(0, 0, bounds.width, bounds.height))) {\r\n            this.rect = oldRect;\r\n        }\r\n        this.draw();\r\n    }\r\n    \r\n    // After you have completed dragging, ensure the top left of the selection\r\n    // box is still the top left corner of the box\r\n    function onBorderDragEnd(){\r\n        if (this.rect.width < 0){\r\n            this.rect.x += this.rect.width;\r\n            this.rect.width = Math.abs(this.rect.width);\r\n        }\r\n        if (this.rect.height < 0){\r\n            this.rect.y += this.rect.height;\r\n            this.rect.height = Math.abs(this.rect.height);\r\n        }\r\n    }\r\n\r\n    function onKeyPress(e) {\r\n        var key = e.keyCode ? e.keyCode : e.charCode;\r\n        if (key === 13) {\r\n            this.confirm();\r\n        } else if (String.fromCharCode(key) === this.keyboardShortcut) {\r\n            this.toggleState();\r\n        }\r\n    }\r\n\r\n    function getPrerotatedRect(start, end, height) {\r\n        if (start.x > end.x) {\r\n            // always draw left to right\r\n            var x = start;\r\n            start = end;\r\n            end = x;\r\n        }\r\n        var delta = end.minus(start);\r\n        var dist = start.distanceTo(end);\r\n        var angle = -1 * Math.atan2(delta.x, delta.y) + (Math.PI / 2);\r\n        var center = new $.Point(\r\n            delta.x / 2 + start.x,\r\n            delta.y / 2 + start.y\r\n        );\r\n        var rect = new $.SelectionRect(\r\n            center.x - (dist / 2),\r\n            center.y - (height / 2),\r\n            dist,\r\n            height,\r\n            angle\r\n        );\r\n        var heightModDelta = new $.Point(0, height);\r\n        heightModDelta = heightModDelta.rotate(rect.getDegreeRotation(), new $.Point(0, 0));\r\n        rect.x += heightModDelta.x / 2;\r\n        rect.y += heightModDelta.y / 2;\r\n        return rect;\r\n    }\r\n\r\n    function pointIsInImage(self, point) {\r\n        var bounds = self.viewer.world.getHomeBounds();\r\n        return point.x >= 0 && point.x <= bounds.width && point.y >= 0 && point.y <= bounds.height;\r\n    }\r\n\r\n    function restrictVector(delta, end) {\r\n        var start;\r\n        for (var prop in {x: 0, y: 0}) {\r\n            start = end[prop] - delta[prop];\r\n            if (start < 1 && start > 0) {\r\n                if (end[prop] > 1) {\r\n                    delta[prop] -= end[prop] - 1;\r\n                    end[prop] = 1;\r\n                } else if (end[prop] < 0) {\r\n                    delta[prop] -= end[prop];\r\n                    end[prop] = 0;\r\n                }\r\n            }\r\n        }\r\n    }\r\n\r\n})(OpenSeadragon);\r\n","(function( $ ){\r\n    'use strict';\r\n\r\n    /**\r\n     * @class Overlay\r\n     * @classdesc Provides a way to float an HTML element on top of the viewer element.\r\n     *\r\n     * @memberof OpenSeadragon\r\n     * @param {Object} options\r\n     * @param {Element} options.element\r\n     * @param {OpenSeadragon.Point|OpenSeadragon.Rect|OpenSeadragon.SelectionRect} options.location - The\r\n     * location of the overlay on the image. If a {@link OpenSeadragon.Point}\r\n     * is specified, the overlay will keep a constant size independently of the\r\n     * zoom. If a {@link OpenSeadragon.Rect} is specified, the overlay size will\r\n     * be adjusted when the zoom changes.\r\n     * @param {OpenSeadragon.OverlayPlacement} [options.placement=OpenSeadragon.OverlayPlacement.TOP_LEFT]\r\n     * Relative position to the viewport.\r\n     * Only used if location is a {@link OpenSeadragon.Point}.\r\n     * @param {OpenSeadragon.Overlay.OnDrawCallback} [options.onDraw]\r\n     * @param {Boolean} [options.checkResize=true] Set to false to avoid to\r\n     * check the size of the overlay everytime it is drawn when using a\r\n     * {@link OpenSeadragon.Point} as options.location. It will improve\r\n     * performances but will cause a misalignment if the overlay size changes.\r\n     */\r\n    $.SelectionOverlay = function( element, location) {\r\n        $.Overlay.apply( this, arguments );\r\n\r\n        // set the rotation in radians\r\n        if ( $.isPlainObject( element ) ) {\r\n            this.rotation = element.location.rotation || 0;\r\n        } else {\r\n            this.rotation = location.rotation || 0;\r\n        }\r\n    };\r\n\r\n    $.SelectionOverlay.prototype = $.extend( Object.create($.Overlay.prototype), {\r\n\r\n        /**\r\n         * @function\r\n         * @param {Element} container\r\n         */\r\n        drawHTML: function() {\r\n            $.Overlay.prototype.drawHTML.apply( this, arguments );\r\n            this.style.transform = this.style.transform.replace(/ ?rotate\\(.+rad\\)/, '') +\r\n                ' rotate(' + this.rotation + 'rad)';\r\n        },\r\n\r\n        /**\r\n         * @function\r\n         * @param {OpenSeadragon.Point|OpenSeadragon.Rect} location\r\n         * @param {OpenSeadragon.OverlayPlacement} position\r\n         */\r\n        update: function( location ) {\r\n            $.Overlay.prototype.update.apply( this, arguments );\r\n            this.rotation = location.rotation || 0;\r\n        }\r\n    });\r\n\r\n}( OpenSeadragon ));\r\n","(function( $ ){\r\n    'use strict';\r\n\r\n    /**\r\n     * @class SelectionRect\r\n     * @classdesc A display rectangle is very similar to {@link OpenSeadragon.Rect} but adds rotation\r\n     * around the center point\r\n     *\r\n     * @memberof OpenSeadragon\r\n     * @extends OpenSeadragon.Rect\r\n     * @param {Number} x The vector component 'x'.\r\n     * @param {Number} y The vector component 'y'.\r\n     * @param {Number} width The vector component 'height'.\r\n     * @param {Number} height The vector component 'width'.\r\n     * @param {Number} rotation The rotation in radians\r\n     */\r\n    $.SelectionRect = function( x, y, width, height, rotation ) {\r\n        $.Rect.apply( this, [ x, y, width, height ] );\r\n\r\n        /**\r\n         * The rotation in radians\r\n         * @member {Number} rotation\r\n         * @memberof OpenSeadragon.SelectionRect#\r\n         */\r\n        this.rotation = rotation || 0;\r\n    };\r\n\r\n    $.SelectionRect.fromRect = function(rect) {\r\n        return new $.SelectionRect(\r\n            rect.x,\r\n            rect.y,\r\n            rect.width,\r\n            rect.height\r\n        );\r\n    };\r\n\r\n    $.SelectionRect.prototype = $.extend( Object.create($.Rect.prototype), {\r\n\r\n        /**\r\n         * @function\r\n         * @returns {OpenSeadragon.Rect} a duplicate of this Rect\r\n         */\r\n        clone: function() {\r\n            return new $.SelectionRect(this.x, this.y, this.width, this.height, this.rotation);\r\n        },\r\n\r\n        /**\r\n         * Determines if two Rectangles have equivalent components.\r\n         * @function\r\n         * @param {OpenSeadragon.Rect} rectangle The Rectangle to compare to.\r\n         * @return {Boolean} 'true' if all components are equal, otherwise 'false'.\r\n         */\r\n        equals: function( other ) {\r\n            return $.Rect.prototype.equals.apply(this, [ other ]) &&\r\n                ( this.rotation === other.rotation );\r\n        },\r\n\r\n        /**\r\n         * Provides a string representation of the rectangle which is useful for\r\n         * debugging.\r\n         * @function\r\n         * @returns {String} A string representation of the rectangle.\r\n         */\r\n        toString: function() {\r\n            return '[' +\r\n                (Math.round(this.x*100) / 100) + ',' +\r\n                (Math.round(this.y*100) / 100) + ',' +\r\n                (Math.round(this.width*100) / 100) + 'x' +\r\n                (Math.round(this.height*100) / 100) + '@' +\r\n                (Math.round(this.rotation*100) / 100) +\r\n            ']';\r\n        },\r\n\r\n        swapWidthHeight: function() {\r\n            var swapped = this.clone();\r\n            swapped.width = this.height;\r\n            swapped.height = this.width;\r\n            swapped.x += (this.width - this.height) / 2;\r\n            swapped.y += (this.height - this.width) / 2;\r\n            return swapped;\r\n        },\r\n\r\n        /**\r\n         * @function\r\n         * @returns {Number} The rotaion in degrees\r\n         */\r\n        getDegreeRotation: function() {\r\n            return this.rotation * (180/Math.PI);\r\n        },\r\n\r\n        /**\r\n         * @function\r\n         * @param {OpenSeadragon.Point} point\r\n         * @returns {Number} The angle in radians\r\n         */\r\n        getAngleFromCenter: function(point) {\r\n            var diff = point.minus(this.getCenter());\r\n            return Math.atan2(diff.x, diff.y);\r\n        },\r\n\r\n        /**\r\n         * Rounds pixel coordinates\r\n         * @function\r\n         * @returns {SelectionRect} The altered rect\r\n         */\r\n        round: function() {\r\n            return new $.SelectionRect(\r\n                Math.round(this.x),\r\n                Math.round(this.y),\r\n                Math.round(this.width),\r\n                Math.round(this.height),\r\n                this.rotation\r\n            );\r\n        },\r\n\r\n        /**\r\n         * Fixes negative width/height, rotation larger than PI\r\n         * @function\r\n         * @returns {SelectionRect} The normalized rect\r\n         */\r\n        normalize: function() {\r\n            var fixed = this.clone();\r\n            if (fixed.width < 0) {\r\n                fixed.x += fixed.width;\r\n                fixed.width *= -1;\r\n            }\r\n            if (fixed.height < 0) {\r\n                fixed.y += fixed.height;\r\n                fixed.height *= -1;\r\n            }\r\n            fixed.rotation %= Math.PI;\r\n            return fixed;\r\n        },\r\n\r\n        /**\r\n         * @function\r\n         * @param {OpenSeadragon.Rect} area\r\n         * @returns {Boolean} Does this rect fit in a specified area\r\n         */\r\n        fitsIn: function(area) {\r\n            var rect = this.normalize();\r\n            var corners = [\r\n                rect.getTopLeft(),\r\n                rect.getTopRight(),\r\n                rect.getBottomRight(),\r\n                rect.getBottomLeft(),\r\n            ];\r\n            var center = rect.getCenter();\r\n            var rotation = rect.getDegreeRotation();\r\n            var areaEnd = area.getBottomRight();\r\n            for (var i = 0; i < 4; i++) {\r\n                corners[i] = corners[i].rotate(rotation, center);\r\n                if (corners[i].x < area.x || corners[i].x > areaEnd.x ||\r\n                    corners[i].y < area.y || corners[i].y > areaEnd.y) {\r\n                    return false;\r\n                }\r\n            }\r\n            return true;\r\n        },\r\n\r\n        /**\r\n         * Reduces rotation to within [-45, 45] degrees by swapping width & height\r\n         * @function\r\n         * @returns {SelectionRect} The altered rect\r\n         */\r\n        reduceRotation: function() {\r\n            var reduced;\r\n            if (this.rotation < Math.PI / (-4)) {\r\n                reduced = this.swapWidthHeight();\r\n                reduced.rotation += Math.PI / 2;\r\n            } else if (this.rotation > Math.PI / 4) {\r\n                reduced = this.swapWidthHeight();\r\n                reduced.rotation -= Math.PI / 2;\r\n            } else {\r\n                reduced = this.clone();\r\n            }\r\n            return reduced;\r\n        },\r\n    });\r\n\r\n}( OpenSeadragon ));\r\n"]}