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/* |
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* iviewer Widget for jQuery UI |
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* https://github.com/can3p/iviewer |
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* |
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* Copyright (c) 2009 - 2012 Dmitry Petrov |
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* Dual licensed under the MIT and GPL licenses. |
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* - http://www.opensource.org/licenses/mit-license.php |
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* - http://www.gnu.org/copyleft/gpl.html |
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* |
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* Author: Dmitry Petrov |
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* Version: 0.7.7 |
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*/ |
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( function( $, undefined ) { |
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//this code was taken from the https://github.com/furf/jquery-ui-touch-punch |
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var mouseEvents = { |
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touchstart: 'mousedown', |
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touchmove: 'mousemove', |
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touchend: 'mouseup' |
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}, |
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gesturesSupport = 'ongesturestart' in document.createElement('div'); |
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/** |
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* Convert a touch event to a mouse-like |
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*/ |
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function makeMouseEvent (event) { |
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var touch = event.originalEvent.changedTouches[0]; |
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return $.extend(event, { |
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type: mouseEvents[event.type], |
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which: 1, |
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pageX: touch.pageX, |
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pageY: touch.pageY, |
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screenX: touch.screenX, |
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screenY: touch.screenY, |
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clientX: touch.clientX, |
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clientY: touch.clientY, |
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isTouchEvent: true |
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}); |
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} |
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var mouseProto = $.ui.mouse.prototype, |
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_mouseInit = $.ui.mouse.prototype._mouseInit; |
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mouseProto._mouseInit = function() { |
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var self = this; |
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self._touchActive = false; |
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this.element.bind( 'touchstart.' + this.widgetName, function(event) { |
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if (gesturesSupport && event.originalEvent.touches.length > 1) { return; } |
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self._touchActive = true; |
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return self._mouseDown(makeMouseEvent(event)); |
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}) |
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var self = this; |
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// these delegates are required to keep context |
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this._mouseMoveDelegate = function(event) { |
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if (gesturesSupport && event.originalEvent.touches && event.originalEvent.touches.length > 1) { return; } |
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if (self._touchActive) { |
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return self._mouseMove(makeMouseEvent(event)); |
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} |
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}; |
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this._mouseUpDelegate = function(event) { |
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if (self._touchActive) { |
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self._touchActive = false; |
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return self._mouseUp(makeMouseEvent(event)); |
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} |
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}; |
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$(document) |
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.bind('touchmove.'+ this.widgetName, this._mouseMoveDelegate) |
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.bind('touchend.' + this.widgetName, this._mouseUpDelegate); |
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_mouseInit.apply(this); |
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} |
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/** |
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* Simple implementation of jQuery like getters/setters |
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* var val = something(); |
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* something(val); |
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*/ |
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var setter = function(setter, getter) { |
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return function(val) { |
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if (arguments.length === 0) { |
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return getter.apply(this); |
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} else { |
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setter.apply(this, arguments); |
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} |
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} |
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}; |
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/** |
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* Internet explorer rotates image relative left top corner, so we should |
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* shift image when it's rotated. |
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*/ |
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var ieTransforms = { |
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'0': { |
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marginLeft: 0, |
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marginTop: 0, |
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filter: 'progid:DXImageTransform.Microsoft.Matrix(M11=1, M12=0, M21=0, M22=1, SizingMethod="auto expand")' |
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}, |
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'90': { |
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marginLeft: -1, |
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marginTop: 1, |
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filter: 'progid:DXImageTransform.Microsoft.Matrix(M11=0, M12=-1, M21=1, M22=0, SizingMethod="auto expand")' |
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}, |
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'180': { |
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marginLeft: 0, |
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marginTop: 0, |
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filter: 'progid:DXImageTransform.Microsoft.Matrix(M11=-1, M12=0, M21=0, M22=-1, SizingMethod="auto expand")' |
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}, |
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'270': { |
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marginLeft: -1, |
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marginTop: 1, |
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filter: 'progid:DXImageTransform.Microsoft.Matrix(M11=0, M12=1, M21=-1, M22=0, SizingMethod="auto expand")' |
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} |
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}, |
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// this test is the inversion of the css filters test from the modernizr project |
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useIeTransforms = function() { |
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var modElem = document.createElement('modernizr'), |
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mStyle = modElem.style, |
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omPrefixes = 'Webkit Moz O ms', |
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domPrefixes = omPrefixes.toLowerCase().split(' '), |
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props = ("transform" + ' ' + domPrefixes.join("Transform ") + "Transform").split(' '); |
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for ( var i in props ) { |
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var prop = props[i]; |
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if ( !$.contains(prop, "-") && mStyle[prop] !== undefined ) { |
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return false; |
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} |
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} |
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return true; |
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}(); |
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$.widget( "ui.iviewer", $.ui.mouse, { |
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widgetEventPrefix: "iviewer", |
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options : { |
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/** |
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* start zoom value for image, not used now |
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* may be equal to "fit" to fit image into container or scale in % |
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**/ |
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zoom: "fit", |
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/** |
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* base value to scale image |
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**/ |
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zoom_base: 100, |
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/** |
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* maximum zoom |
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**/ |
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zoom_max: 800, |
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/** |
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* minimum zoom |
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**/ |
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zoom_min: 25, |
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/** |
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* base of rate multiplier. |
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* zoom is calculated by formula: zoom_base * zoom_delta^rate |
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**/ |
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zoom_delta: 1.4, |
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/** |
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* whether the zoom should be animated. |
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*/ |
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zoom_animation: true, |
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/** |
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* if true plugin doesn't add its own controls |
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**/ |
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ui_disabled: false, |
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/** |
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* If false mousewheel will be disabled |
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*/ |
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mousewheel: true, |
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/** |
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* if false, plugin doesn't bind resize event on window and this must |
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* be handled manually |
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**/ |
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update_on_resize: true, |
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/** |
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* event is triggered when zoom value is changed |
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* @param int new zoom value |
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* @return boolean if false zoom action is aborted |
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**/ |
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onZoom: jQuery.noop, |
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/** |
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* event is triggered when zoom value is changed after image is set to the new dimensions |
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* @param int new zoom value |
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* @return boolean if false zoom action is aborted |
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**/ |
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onAfterZoom: jQuery.noop, |
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/** |
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* event is fired on drag begin |
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* @param object coords mouse coordinates on the image |
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* @return boolean if false is returned, drag action is aborted |
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**/ |
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onStartDrag: jQuery.noop, |
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/** |
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* event is fired on drag action |
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* @param object coords mouse coordinates on the image |
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**/ |
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onDrag: jQuery.noop, |
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/** |
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* event is fired on drag stop |
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* @param object coords mouse coordinates on the image |
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**/ |
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onStopDrag: jQuery.noop, |
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/** |
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* event is fired when mouse moves over image |
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* @param object coords mouse coordinates on the image |
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**/ |
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onMouseMove: jQuery.noop, |
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/** |
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* mouse click event |
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* @param object coords mouse coordinates on the image |
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**/ |
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onClick: jQuery.noop, |
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/** |
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* event is fired when image starts to load |
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*/ |
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onStartLoad: null, |
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/** |
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* event is fired, when image is loaded and initially positioned |
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*/ |
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onFinishLoad: null, |
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/** |
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* event is fired when image load error occurs |
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*/ |
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onErrorLoad: null |
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}, |
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_create: function() { |
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var me = this; |
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//drag variables |
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this.dx = 0; |
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this.dy = 0; |
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/* object containing actual information about image |
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* @img_object.object - jquery img object |
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* @img_object.orig_{width|height} - original dimensions |
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* @img_object.display_{width|height} - actual dimensions |
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*/ |
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this.img_object = {}; |
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this.zoom_object = {}; //object to show zoom status |
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this._angle = 0; |
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this.current_zoom = this.options.zoom; |
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if(this.options.src === null){ |
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return; |
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} |
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this.container = this.element; |
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this._updateContainerInfo(); |
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//init container |
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this.container.css("overflow","hidden"); |
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if (this.options.update_on_resize == true) { |
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$(window).resize(function() { |
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me.update(); |
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}); |
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} |
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this.img_object = new $.ui.iviewer.ImageObject(this.options.zoom_animation); |
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if (this.options.mousewheel) { |
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this.container.bind('mousewheel.iviewer', function(ev, delta) |
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{ |
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//this event is there instead of containing div, because |
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//at opera it triggers many times on div |
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var zoom = (delta > 0)?1:-1, |
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container_offset = me.container.offset(), |
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mouse_pos = { |
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//jquery.mousewheel 3.1.0 uses strange MozMousePixelScroll event |
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//which is not being fixed by jQuery.Event |
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x: (ev.pageX || ev.originalEvent.pageX) - container_offset.left, |
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y: (ev.pageY || ev.originalEvent.pageX) - container_offset.top |
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}; |
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me.zoom_by(zoom, mouse_pos); |
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return false; |
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}); |
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if (gesturesSupport) { |
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var gestureThrottle = +new Date(); |
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var originalScale, originalCenter; |
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this.img_object.object() |
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// .bind('gesturestart', function(ev) { |
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.bind('touchstart', function(ev) { |
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originalScale = me.current_zoom; |
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var touches = ev.originalEvent.touches, |
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container_offset; |
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if (touches.length == 2) { |
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container_offset = me.container.offset(); |
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originalCenter = { |
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x: (touches[0].pageX + touches[1].pageX) / 2 - container_offset.left, |
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y: (touches[0].pageY + touches[1].pageY) / 2 - container_offset.top |
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}; |
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} else { |
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originalCenter = null; |
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} |
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}).bind('gesturechange', function(ev) { |
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//do not want to import throttle function from underscore |
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var d = +new Date(); |
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if ((d - gestureThrottle) < 50) { return; } |
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gestureThrottle = d; |
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var zoom = originalScale * ev.originalEvent.scale; |
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me.set_zoom(zoom, originalCenter); |
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ev.preventDefault(); |
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}).bind('gestureend', function(ev) { |
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originalCenter = null; |
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}); |
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} |
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} |
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//init object |
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this.img_object.object() |
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//bind mouse events |
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.click(function(e){return me._click(e)}) |
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.prependTo(this.container); |
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this.container.bind('mousemove', function(ev) { me._handleMouseMove(ev); }); |
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this.loadImage(this.options.src); |
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if(!this.options.ui_disabled) |
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{ |
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this.createui(); |
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} |
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this._mouseInit(); |
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}, |
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destroy: function() { |
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$.Widget.prototype.destroy.call( this ); |
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this._mouseDestroy(); |
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this.img_object.object().remove(); |
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this.container.off('.iviewer'); |
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this.container.css('overflow', ''); //cleanup styles on destroy |
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}, |
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_updateContainerInfo: function() |
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{ |
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this.options.height = this.container.height(); |
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this.options.width = this.container.width(); |
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}, |
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update: function() |
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{ |
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this._updateContainerInfo() |
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this.setCoords(this.img_object.x(), this.img_object.y()); |
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}, |
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loadImage: function( src ) |
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{ |
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this.current_zoom = this.options.zoom; |
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var me = this; |
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this._trigger('onStartLoad', 0, src); |
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this.container.addClass("iviewer_loading"); |
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this.img_object.load(src, function() { |
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me._imageLoaded(src); |
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}, function() { |
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|
|
me._trigger("onErrorLoad", 0, src); |
372
|
|
|
}); |
373
|
|
|
}, |
374
|
|
|
|
375
|
|
|
_imageLoaded: function(src) { |
376
|
|
|
this.container.removeClass("iviewer_loading"); |
377
|
|
|
this.container.addClass("iviewer_cursor"); |
378
|
|
|
|
379
|
|
|
if(this.options.zoom == "fit"){ |
380
|
|
|
this.fit(true); |
381
|
|
|
} |
382
|
|
|
else { |
383
|
|
|
this.set_zoom(this.options.zoom, true); |
384
|
|
|
} |
385
|
|
|
|
386
|
|
|
this._trigger('onFinishLoad', 0, src); |
387
|
|
|
}, |
388
|
|
|
|
389
|
|
|
/** |
390
|
|
|
* fits image in the container |
391
|
|
|
* |
392
|
|
|
* @param {boolean} skip_animation |
393
|
|
|
**/ |
394
|
|
|
fit: function(skip_animation) |
395
|
|
|
{ |
396
|
|
|
var aspect_ratio = this.img_object.orig_width() / this.img_object.orig_height(); |
397
|
|
|
var window_ratio = this.options.width / this.options.height; |
398
|
|
|
var choose_left = (aspect_ratio > window_ratio); |
399
|
|
|
var new_zoom = 0; |
400
|
|
|
|
401
|
|
|
if(choose_left){ |
402
|
|
|
new_zoom = this.options.width / this.img_object.orig_width() * 100; |
403
|
|
|
} |
404
|
|
|
else { |
405
|
|
|
new_zoom = this.options.height / this.img_object.orig_height() * 100; |
406
|
|
|
} |
407
|
|
|
|
408
|
|
|
this.set_zoom(new_zoom, skip_animation); |
409
|
|
|
}, |
410
|
|
|
|
411
|
|
|
/** |
412
|
|
|
* center image in container |
413
|
|
|
**/ |
414
|
|
|
center: function() |
415
|
|
|
{ |
416
|
|
|
this.setCoords(-Math.round((this.img_object.display_width() - this.options.width)/2), |
417
|
|
|
-Math.round((this.img_object.display_height() - this.options.height)/2)); |
418
|
|
|
}, |
419
|
|
|
|
420
|
|
|
/** |
421
|
|
|
* move a point in container to the center of display area |
422
|
|
|
* @param x a point in container |
423
|
|
|
* @param y a point in container |
424
|
|
|
**/ |
425
|
|
|
moveTo: function(x, y) |
426
|
|
|
{ |
427
|
|
|
var dx = x-Math.round(this.options.width/2); |
428
|
|
|
var dy = y-Math.round(this.options.height/2); |
429
|
|
|
|
430
|
|
|
var new_x = this.img_object.x() - dx; |
431
|
|
|
var new_y = this.img_object.y() - dy; |
432
|
|
|
|
433
|
|
|
this.setCoords(new_x, new_y); |
434
|
|
|
}, |
435
|
|
|
|
436
|
|
|
/** |
437
|
|
|
* Get container offset object. |
438
|
|
|
*/ |
439
|
|
|
getContainerOffset: function() { |
440
|
|
|
return jQuery.extend({}, this.container.offset()); |
441
|
|
|
}, |
442
|
|
|
|
443
|
|
|
/** |
444
|
|
|
* set coordinates of upper left corner of image object |
445
|
|
|
**/ |
446
|
|
|
setCoords: function(x,y) |
447
|
|
|
{ |
448
|
|
|
//do nothing while image is being loaded |
449
|
|
|
if(!this.img_object.loaded()) { return; } |
450
|
|
|
|
451
|
|
|
var coords = this._correctCoords(x,y); |
452
|
|
|
this.img_object.x(coords.x); |
453
|
|
|
this.img_object.y(coords.y); |
454
|
|
|
}, |
455
|
|
|
|
456
|
|
|
_correctCoords: function( x, y ) |
457
|
|
|
{ |
458
|
|
|
x = parseInt(x, 10); |
459
|
|
|
y = parseInt(y, 10); |
460
|
|
|
|
461
|
|
|
//check new coordinates to be correct (to be in rect) |
462
|
|
|
if(y > 0){ |
463
|
|
|
y = 0; |
464
|
|
|
} |
465
|
|
|
if(x > 0){ |
466
|
|
|
x = 0; |
467
|
|
|
} |
468
|
|
|
if(y + this.img_object.display_height() < this.options.height){ |
469
|
|
|
y = this.options.height - this.img_object.display_height(); |
470
|
|
|
} |
471
|
|
|
if(x + this.img_object.display_width() < this.options.width){ |
472
|
|
|
x = this.options.width - this.img_object.display_width(); |
473
|
|
|
} |
474
|
|
|
if(this.img_object.display_width() <= this.options.width){ |
475
|
|
|
x = -(this.img_object.display_width() - this.options.width)/2; |
476
|
|
|
} |
477
|
|
|
if(this.img_object.display_height() <= this.options.height){ |
478
|
|
|
y = -(this.img_object.display_height() - this.options.height)/2; |
479
|
|
|
} |
480
|
|
|
|
481
|
|
|
return { x: x, y:y }; |
482
|
|
|
}, |
483
|
|
|
|
484
|
|
|
|
485
|
|
|
/** |
486
|
|
|
* convert coordinates on the container to the coordinates on the image (in original size) |
487
|
|
|
* |
488
|
|
|
* @return object with fields x,y according to coordinates or false |
489
|
|
|
* if initial coords are not inside image |
490
|
|
|
**/ |
491
|
|
|
containerToImage : function (x,y) |
492
|
|
|
{ |
493
|
|
|
var coords = { x : x - this.img_object.x(), |
494
|
|
|
y : y - this.img_object.y() |
495
|
|
|
}; |
496
|
|
|
|
497
|
|
|
coords = this.img_object.toOriginalCoords(coords); |
498
|
|
|
|
499
|
|
|
return { x : util.descaleValue(coords.x, this.current_zoom), |
500
|
|
|
y : util.descaleValue(coords.y, this.current_zoom) |
501
|
|
|
}; |
502
|
|
|
}, |
503
|
|
|
|
504
|
|
|
/** |
505
|
|
|
* convert coordinates on the image (in original size, and zero angle) to the coordinates on the container |
506
|
|
|
* |
507
|
|
|
* @return object with fields x,y according to coordinates |
508
|
|
|
**/ |
509
|
|
|
imageToContainer : function (x,y) |
510
|
|
|
{ |
511
|
|
|
var coords = { |
512
|
|
|
x : util.scaleValue(x, this.current_zoom), |
513
|
|
|
y : util.scaleValue(y, this.current_zoom) |
514
|
|
|
}; |
515
|
|
|
|
516
|
|
|
return this.img_object.toRealCoords(coords); |
517
|
|
|
}, |
518
|
|
|
|
519
|
|
|
/** |
520
|
|
|
* get mouse coordinates on the image |
521
|
|
|
* @param e - object containing pageX and pageY fields, e.g. mouse event object |
522
|
|
|
* |
523
|
|
|
* @return object with fields x,y according to coordinates or false |
524
|
|
|
* if initial coords are not inside image |
525
|
|
|
**/ |
526
|
|
|
_getMouseCoords : function(e) |
527
|
|
|
{ |
528
|
|
|
var containerOffset = this.container.offset(); |
529
|
|
|
coords = this.containerToImage(e.pageX - containerOffset.left, e.pageY - containerOffset.top); |
|
|
|
|
530
|
|
|
|
531
|
|
|
return coords; |
532
|
|
|
}, |
533
|
|
|
|
534
|
|
|
/** |
535
|
|
|
* set image scale to the new_zoom |
536
|
|
|
* |
537
|
|
|
* @param {number} new_zoom image scale in % |
538
|
|
|
* @param {boolean} skip_animation |
539
|
|
|
* @param {x: number, y: number} Coordinates of point the should not be moved on zoom. The default is the center of image. |
540
|
|
|
**/ |
541
|
|
|
set_zoom: function(new_zoom, skip_animation, zoom_center) |
542
|
|
|
{ |
543
|
|
|
if (this._trigger('onZoom', 0, new_zoom) == false) { |
|
|
|
|
544
|
|
|
return; |
545
|
|
|
} |
546
|
|
|
|
547
|
|
|
//do nothing while image is being loaded |
548
|
|
|
if(!this.img_object.loaded()) { return; } |
549
|
|
|
|
550
|
|
|
zoom_center = zoom_center || { |
551
|
|
|
x: Math.round(this.options.width/2), |
552
|
|
|
y: Math.round(this.options.height/2) |
553
|
|
|
} |
554
|
|
|
|
555
|
|
|
if(new_zoom < this.options.zoom_min) |
556
|
|
|
{ |
557
|
|
|
new_zoom = this.options.zoom_min; |
558
|
|
|
} |
559
|
|
|
else if(new_zoom > this.options.zoom_max) |
560
|
|
|
{ |
561
|
|
|
new_zoom = this.options.zoom_max; |
562
|
|
|
} |
563
|
|
|
|
564
|
|
|
/* we fake these values to make fit zoom properly work */ |
565
|
|
|
if(this.current_zoom == "fit") |
566
|
|
|
{ |
567
|
|
|
var old_x = zoom_center.x + Math.round(this.img_object.orig_width()/2); |
568
|
|
|
var old_y = zoom_center.y + Math.round(this.img_object.orig_height()/2); |
569
|
|
|
this.current_zoom = 100; |
570
|
|
|
} |
571
|
|
|
else { |
572
|
|
|
var old_x = -this.img_object.x() + zoom_center.x; |
|
|
|
|
573
|
|
|
var old_y = -this.img_object.y() + zoom_center.y |
|
|
|
|
574
|
|
|
} |
575
|
|
|
|
576
|
|
|
var new_width = util.scaleValue(this.img_object.orig_width(), new_zoom); |
577
|
|
|
var new_height = util.scaleValue(this.img_object.orig_height(), new_zoom); |
578
|
|
|
var new_x = util.scaleValue( util.descaleValue(old_x, this.current_zoom), new_zoom); |
579
|
|
|
var new_y = util.scaleValue( util.descaleValue(old_y, this.current_zoom), new_zoom); |
580
|
|
|
|
581
|
|
|
new_x = zoom_center.x - new_x; |
582
|
|
|
new_y = zoom_center.y - new_y; |
583
|
|
|
|
584
|
|
|
new_width = Math.floor(new_width); |
585
|
|
|
new_height = Math.floor(new_height); |
586
|
|
|
new_x = Math.floor(new_x); |
587
|
|
|
new_y = Math.floor(new_y); |
588
|
|
|
|
589
|
|
|
this.img_object.display_width(new_width); |
590
|
|
|
this.img_object.display_height(new_height); |
591
|
|
|
|
592
|
|
|
var coords = this._correctCoords( new_x, new_y ), |
593
|
|
|
self = this; |
594
|
|
|
|
595
|
|
|
this.img_object.setImageProps(new_width, new_height, coords.x, coords.y, |
596
|
|
|
skip_animation, function() { |
597
|
|
|
self._trigger('onAfterZoom', 0, new_zoom ); |
598
|
|
|
}); |
599
|
|
|
this.current_zoom = new_zoom; |
600
|
|
|
|
601
|
|
|
this.update_status(); |
602
|
|
|
}, |
603
|
|
|
|
604
|
|
|
/** |
605
|
|
|
* changes zoom scale by delta |
606
|
|
|
* zoom is calculated by formula: zoom_base * zoom_delta^rate |
607
|
|
|
* @param Integer delta number to add to the current multiplier rate number |
608
|
|
|
* @param {x: number, y: number=} Coordinates of point the should not be moved on zoom. |
609
|
|
|
**/ |
610
|
|
|
zoom_by: function(delta, zoom_center) |
611
|
|
|
{ |
612
|
|
|
var closest_rate = this.find_closest_zoom_rate(this.current_zoom); |
613
|
|
|
|
614
|
|
|
var next_rate = closest_rate + delta; |
615
|
|
|
var next_zoom = this.options.zoom_base * Math.pow(this.options.zoom_delta, next_rate) |
616
|
|
|
if(delta > 0 && next_zoom < this.current_zoom) |
617
|
|
|
{ |
618
|
|
|
next_zoom *= this.options.zoom_delta; |
619
|
|
|
} |
620
|
|
|
|
621
|
|
|
if(delta < 0 && next_zoom > this.current_zoom) |
622
|
|
|
{ |
623
|
|
|
next_zoom /= this.options.zoom_delta; |
624
|
|
|
} |
625
|
|
|
|
626
|
|
|
this.set_zoom(next_zoom, undefined, zoom_center); |
627
|
|
|
}, |
628
|
|
|
|
629
|
|
|
/** |
630
|
|
|
* Rotate image |
631
|
|
|
* @param {num} deg Degrees amount to rotate. Positive values rotate image clockwise. |
632
|
|
|
* Currently 0, 90, 180, 270 and -90, -180, -270 values are supported |
633
|
|
|
* |
634
|
|
|
* @param {boolean} abs If the flag is true if, the deg parameter will be considered as |
635
|
|
|
* a absolute value and relative otherwise. |
636
|
|
|
* @return {num|null} Method will return current image angle if called without any arguments. |
637
|
|
|
**/ |
638
|
|
|
angle: function(deg, abs) { |
639
|
|
|
if (arguments.length === 0) { return this.img_object.angle(); } |
640
|
|
|
|
641
|
|
|
if (deg < -270 || deg > 270 || deg % 90 !== 0) { return; } |
|
|
|
|
642
|
|
|
if (!abs) { deg += this.img_object.angle(); } |
643
|
|
|
if (deg < 0) { deg += 360; } |
644
|
|
|
if (deg >= 360) { deg -= 360; } |
645
|
|
|
|
646
|
|
|
if (deg === this.img_object.angle()) { return; } |
|
|
|
|
647
|
|
|
|
648
|
|
|
this.img_object.angle(deg); |
649
|
|
|
//the rotate behavior is different in all editors. For now we just center the |
650
|
|
|
//image. However, it will be better to try to keep the position. |
651
|
|
|
this.center(); |
652
|
|
|
this._trigger('angle', 0, { angle: this.img_object.angle() }); |
|
|
|
|
653
|
|
|
}, |
654
|
|
|
|
655
|
|
|
/** |
656
|
|
|
* finds closest multiplier rate for value |
657
|
|
|
* basing on zoom_base and zoom_delta values from settings |
658
|
|
|
* @param Number value zoom value to examine |
659
|
|
|
**/ |
660
|
|
|
find_closest_zoom_rate: function(value) |
661
|
|
|
{ |
662
|
|
|
if(value == this.options.zoom_base) |
663
|
|
|
{ |
664
|
|
|
return 0; |
665
|
|
|
} |
666
|
|
|
|
667
|
|
|
function div(val1,val2) { return val1 / val2 }; |
668
|
|
|
function mul(val1,val2) { return val1 * val2 }; |
669
|
|
|
|
670
|
|
|
var func = (value > this.options.zoom_base)?mul:div; |
671
|
|
|
var sgn = (value > this.options.zoom_base)?1:-1; |
672
|
|
|
|
673
|
|
|
var mltplr = this.options.zoom_delta; |
674
|
|
|
var rate = 1; |
675
|
|
|
|
676
|
|
|
while(Math.abs(func(this.options.zoom_base, Math.pow(mltplr,rate)) - value) > |
677
|
|
|
Math.abs(func(this.options.zoom_base, Math.pow(mltplr,rate+1)) - value)) |
678
|
|
|
{ |
679
|
|
|
rate++; |
680
|
|
|
} |
681
|
|
|
|
682
|
|
|
return sgn * rate; |
683
|
|
|
}, |
684
|
|
|
|
685
|
|
|
/* update scale info in the container */ |
686
|
|
|
update_status: function() |
687
|
|
|
{ |
688
|
|
|
if(!this.options.ui_disabled) |
689
|
|
|
{ |
690
|
|
|
var percent = Math.round(100*this.img_object.display_height()/this.img_object.orig_height()); |
691
|
|
|
if(percent) |
692
|
|
|
{ |
693
|
|
|
this.zoom_object.html(percent + "%"); |
694
|
|
|
} |
695
|
|
|
} |
696
|
|
|
}, |
697
|
|
|
|
698
|
|
|
/** |
699
|
|
|
* Get some information about the image. |
700
|
|
|
* Currently orig_(width|height), display_(width|height), angle, zoom and src params are supported. |
701
|
|
|
* |
702
|
|
|
* @param {string} parameter to check |
703
|
|
|
* @param {boolean} withoutRotation if param is orig_width or orig_height and this flag is set to true, |
704
|
|
|
* method will return original image width without considering rotation. |
705
|
|
|
* |
706
|
|
|
*/ |
707
|
|
|
info: function(param, withoutRotation) { |
708
|
|
|
if (!param) { return; } |
|
|
|
|
709
|
|
|
|
710
|
|
|
switch (param) { |
711
|
|
|
case 'orig_width': |
712
|
|
|
case 'orig_height': |
713
|
|
|
if (withoutRotation) { |
714
|
|
|
return (this.img_object.angle() % 180 === 0 ? this.img_object[param]() : |
715
|
|
|
param === 'orig_width' ? this.img_object.orig_height() : |
716
|
|
|
this.img_object.orig_width()); |
717
|
|
|
} else { |
|
|
|
|
718
|
|
|
return this.img_object[param](); |
719
|
|
|
} |
720
|
|
|
case 'display_width': |
721
|
|
|
case 'display_height': |
722
|
|
|
case 'angle': |
723
|
|
|
return this.img_object[param](); |
724
|
|
|
case 'zoom': |
725
|
|
|
return this.current_zoom; |
726
|
|
|
case 'src': |
727
|
|
|
return this.img_object.object().attr('src'); |
728
|
|
|
case 'coords': |
729
|
|
|
return { |
730
|
|
|
x: this.img_object.x(), |
731
|
|
|
y: this.img_object.y() |
732
|
|
|
}; |
733
|
|
|
} |
|
|
|
|
734
|
|
|
}, |
735
|
|
|
|
736
|
|
|
/** |
737
|
|
|
* callback for handling mousdown event to start dragging image |
738
|
|
|
**/ |
739
|
|
|
_mouseStart: function( e ) |
740
|
|
|
{ |
741
|
|
|
$.ui.mouse.prototype._mouseStart.call(this, e); |
742
|
|
|
if (this._trigger('onStartDrag', 0, this._getMouseCoords(e)) === false) { |
743
|
|
|
return false; |
744
|
|
|
} |
745
|
|
|
|
746
|
|
|
/* start drag event*/ |
747
|
|
|
this.container.addClass("iviewer_drag_cursor"); |
748
|
|
|
|
749
|
|
|
//#10: fix movement quirks for ipad |
750
|
|
|
this._dragInitialized = !(e.originalEvent.changedTouches && e.originalEvent.changedTouches.length==1); |
|
|
|
|
751
|
|
|
|
752
|
|
|
this.dx = e.pageX - this.img_object.x(); |
753
|
|
|
this.dy = e.pageY - this.img_object.y(); |
754
|
|
|
return true; |
755
|
|
|
}, |
756
|
|
|
|
757
|
|
|
_mouseCapture: function( e ) { |
|
|
|
|
758
|
|
|
return true; |
759
|
|
|
}, |
760
|
|
|
|
761
|
|
|
/** |
762
|
|
|
* Handle mouse move if needed. User can avoid using this callback, because |
763
|
|
|
* he can get the same information through public methods. |
764
|
|
|
* @param {jQuery.Event} e |
765
|
|
|
*/ |
766
|
|
|
_handleMouseMove: function(e) { |
767
|
|
|
this._trigger('onMouseMove', e, this._getMouseCoords(e)); |
768
|
|
|
}, |
769
|
|
|
|
770
|
|
|
/** |
771
|
|
|
* callback for handling mousemove event to drag image |
772
|
|
|
**/ |
773
|
|
|
_mouseDrag: function(e) |
774
|
|
|
{ |
775
|
|
|
$.ui.mouse.prototype._mouseDrag.call(this, e); |
776
|
|
|
|
777
|
|
|
//#10: imitate mouseStart, because we can get here without it on iPad for some reason |
778
|
|
|
if (!this._dragInitialized) { |
779
|
|
|
this.dx = e.pageX - this.img_object.x(); |
780
|
|
|
this.dy = e.pageY - this.img_object.y(); |
781
|
|
|
this._dragInitialized = true; |
782
|
|
|
} |
783
|
|
|
|
784
|
|
|
var ltop = e.pageY - this.dy; |
785
|
|
|
var lleft = e.pageX - this.dx; |
786
|
|
|
|
787
|
|
|
this.setCoords(lleft, ltop); |
788
|
|
|
this._trigger('onDrag', e, this._getMouseCoords(e)); |
789
|
|
|
return false; |
790
|
|
|
}, |
791
|
|
|
|
792
|
|
|
/** |
793
|
|
|
* callback for handling stop drag |
794
|
|
|
**/ |
795
|
|
|
_mouseStop: function(e) |
796
|
|
|
{ |
797
|
|
|
$.ui.mouse.prototype._mouseStop.call(this, e); |
798
|
|
|
this.container.removeClass("iviewer_drag_cursor"); |
799
|
|
|
this._trigger('onStopDrag', 0, this._getMouseCoords(e)); |
800
|
|
|
}, |
801
|
|
|
|
802
|
|
|
_click: function(e) |
803
|
|
|
{ |
804
|
|
|
this._trigger('onClick', 0, this._getMouseCoords(e)); |
805
|
|
|
}, |
806
|
|
|
|
807
|
|
|
/** |
808
|
|
|
* create zoom buttons info box |
809
|
|
|
**/ |
810
|
|
|
createui: function() |
811
|
|
|
{ |
812
|
|
|
var me=this; |
813
|
|
|
|
814
|
|
|
$("<div>", { 'class': "iviewer_zoom_in iviewer_common iviewer_button"}) |
815
|
|
|
.bind('mousedown touchstart',function(){me.zoom_by(1); return false;}) |
816
|
|
|
.appendTo(this.container); |
817
|
|
|
|
818
|
|
|
$("<div>", { 'class': "iviewer_zoom_out iviewer_common iviewer_button"}) |
819
|
|
|
.bind('mousedown touchstart',function(){me.zoom_by(- 1); return false;}) |
820
|
|
|
.appendTo(this.container); |
821
|
|
|
|
822
|
|
|
$("<div>", { 'class': "iviewer_zoom_zero iviewer_common iviewer_button"}) |
823
|
|
|
.bind('mousedown touchstart',function(){me.set_zoom(100); return false;}) |
824
|
|
|
.appendTo(this.container); |
825
|
|
|
|
826
|
|
|
$("<div>", { 'class': "iviewer_zoom_fit iviewer_common iviewer_button"}) |
827
|
|
|
.bind('mousedown touchstart',function(){me.fit(this); return false;}) |
828
|
|
|
.appendTo(this.container); |
829
|
|
|
|
830
|
|
|
this.zoom_object = $("<div>").addClass("iviewer_zoom_status iviewer_common") |
831
|
|
|
.appendTo(this.container); |
832
|
|
|
|
833
|
|
|
$("<div>", { 'class': "iviewer_rotate_left iviewer_common iviewer_button"}) |
834
|
|
|
.bind('mousedown touchstart',function(){me.angle(-90); return false;}) |
835
|
|
|
.appendTo(this.container); |
836
|
|
|
|
837
|
|
|
$("<div>", { 'class': "iviewer_rotate_right iviewer_common iviewer_button" }) |
838
|
|
|
.bind('mousedown touchstart',function(){me.angle(90); return false;}) |
839
|
|
|
.appendTo(this.container); |
840
|
|
|
|
841
|
|
|
this.update_status(); //initial status update |
842
|
|
|
} |
843
|
|
|
|
844
|
|
|
} ); |
845
|
|
|
|
846
|
|
|
/** |
847
|
|
|
* @class $.ui.iviewer.ImageObject Class represents image and provides public api without |
848
|
|
|
* extending image prototype. |
849
|
|
|
* @constructor |
850
|
|
|
* @param {boolean} do_anim Do we want to animate image on dimension changes? |
851
|
|
|
*/ |
852
|
|
|
$.ui.iviewer.ImageObject = function(do_anim) { |
853
|
|
|
this._img = $("<img>") |
854
|
|
|
//this is needed, because chromium sets them auto otherwise |
855
|
|
|
.css({ position: "absolute", top :"0px", left: "0px"}); |
856
|
|
|
|
857
|
|
|
this._loaded = false; |
858
|
|
|
this._swapDimensions = false; |
859
|
|
|
this._do_anim = do_anim || false; |
860
|
|
|
this.x(0, true); |
861
|
|
|
this.y(0, true); |
862
|
|
|
this.angle(0); |
863
|
|
|
}; |
864
|
|
|
|
865
|
|
|
|
866
|
|
|
/** @lends $.ui.iviewer.ImageObject.prototype */ |
867
|
|
|
(function() { |
868
|
|
|
/** |
869
|
|
|
* Restore initial object state. |
870
|
|
|
* |
871
|
|
|
* @param {number} w Image width. |
872
|
|
|
* @param {number} h Image height. |
873
|
|
|
*/ |
874
|
|
|
this._reset = function(w, h) { |
875
|
|
|
this._angle = 0; |
876
|
|
|
this._swapDimensions = false; |
877
|
|
|
this.x(0); |
878
|
|
|
this.y(0); |
879
|
|
|
|
880
|
|
|
this.orig_width(w); |
881
|
|
|
this.orig_height(h); |
882
|
|
|
this.display_width(w); |
883
|
|
|
this.display_height(h); |
884
|
|
|
}; |
885
|
|
|
|
886
|
|
|
/** |
887
|
|
|
* Check if image is loaded. |
888
|
|
|
* |
889
|
|
|
* @return {boolean} |
890
|
|
|
*/ |
891
|
|
|
this.loaded = function() { return this._loaded; }; |
892
|
|
|
|
893
|
|
|
/** |
894
|
|
|
* Load image. |
895
|
|
|
* |
896
|
|
|
* @param {string} src Image url. |
897
|
|
|
* @param {Function=} loaded Function will be called on image load. |
898
|
|
|
*/ |
899
|
|
|
this.load = function(src, loaded, error) { |
900
|
|
|
var self = this; |
901
|
|
|
|
902
|
|
|
loaded = loaded || jQuery.noop; |
903
|
|
|
this._loaded = false; |
904
|
|
|
|
905
|
|
|
//If we assign new image url to the this._img IE9 fires onload event and image width and |
906
|
|
|
//height are set to zero. So, we create another image object and load image through it. |
907
|
|
|
var img = new Image(); |
|
|
|
|
908
|
|
|
img.onload = function() { |
909
|
|
|
self._loaded = true; |
910
|
|
|
self._reset(this.width, this.height); |
911
|
|
|
|
912
|
|
|
self._img |
913
|
|
|
.removeAttr("width") |
914
|
|
|
.removeAttr("height") |
915
|
|
|
.removeAttr("style") |
916
|
|
|
//max-width is reset, because plugin breaks in the twitter bootstrap otherwise |
917
|
|
|
.css({ position: "absolute", top :"0px", left: "0px", maxWidth: "none"}) |
918
|
|
|
|
919
|
|
|
self._img[0].src = src; |
920
|
|
|
loaded(); |
921
|
|
|
}; |
922
|
|
|
|
923
|
|
|
img.onerror = error; |
924
|
|
|
|
925
|
|
|
//we need this because sometimes internet explorer 8 fires onload event |
926
|
|
|
//right after assignment (synchronously) |
927
|
|
|
setTimeout(function() { |
928
|
|
|
img.src = src; |
929
|
|
|
}, 0); |
930
|
|
|
|
931
|
|
|
this.angle(0); |
932
|
|
|
}; |
933
|
|
|
|
934
|
|
|
this._dimension = function(prefix, name) { |
935
|
|
|
var horiz = '_' + prefix + '_' + name, |
936
|
|
|
vert = '_' + prefix + '_' + (name === 'height' ? 'width' : 'height'); |
937
|
|
|
return setter(function(val) { |
938
|
|
|
this[this._swapDimensions ? horiz: vert] = val; |
939
|
|
|
}, |
940
|
|
|
function() { |
941
|
|
|
return this[this._swapDimensions ? horiz: vert]; |
942
|
|
|
}); |
943
|
|
|
}; |
944
|
|
|
|
945
|
|
|
/** |
946
|
|
|
* Getters and setter for common image dimensions. |
947
|
|
|
* display_ means real image tag dimensions |
948
|
|
|
* orig_ means physical image dimensions. |
949
|
|
|
* Note, that dimensions are swapped if image is rotated. It necessary, |
950
|
|
|
* because as little as possible code should know about rotation. |
951
|
|
|
*/ |
952
|
|
|
this.display_width = this._dimension('display', 'width'), |
|
|
|
|
953
|
|
|
this.display_height = this._dimension('display', 'height'), |
954
|
|
|
this.display_diff = function() { return Math.floor( this.display_width() - this.display_height() ) }; |
955
|
|
|
this.orig_width = this._dimension('orig', 'width'), |
|
|
|
|
956
|
|
|
this.orig_height = this._dimension('orig', 'height'), |
957
|
|
|
|
958
|
|
|
/** |
959
|
|
|
* Setter for X coordinate. If image is rotated we need to additionaly shift an |
960
|
|
|
* image to map image coordinate to the visual position. |
961
|
|
|
* |
962
|
|
|
* @param {number} val Coordinate value. |
963
|
|
|
* @param {boolean} skipCss If true, we only set the value and do not touch the dom. |
964
|
|
|
*/ |
965
|
|
|
this.x = setter(function(val, skipCss) { |
966
|
|
|
this._x = val; |
967
|
|
|
if (!skipCss) { |
968
|
|
|
this._finishAnimation(); |
969
|
|
|
this._img.css("left",this._x + (this._swapDimensions ? this.display_diff() / 2 : 0) + "px"); |
970
|
|
|
} |
971
|
|
|
}, |
972
|
|
|
function() { |
973
|
|
|
return this._x; |
974
|
|
|
}); |
975
|
|
|
|
976
|
|
|
/** |
977
|
|
|
* Setter for Y coordinate. If image is rotated we need to additionaly shift an |
978
|
|
|
* image to map image coordinate to the visual position. |
979
|
|
|
* |
980
|
|
|
* @param {number} val Coordinate value. |
981
|
|
|
* @param {boolean} skipCss If true, we only set the value and do not touch the dom. |
982
|
|
|
*/ |
983
|
|
|
this.y = setter(function(val, skipCss) { |
984
|
|
|
this._y = val; |
985
|
|
|
if (!skipCss) { |
986
|
|
|
this._finishAnimation(); |
987
|
|
|
this._img.css("top",this._y - (this._swapDimensions ? this.display_diff() / 2 : 0) + "px"); |
988
|
|
|
} |
989
|
|
|
}, |
990
|
|
|
function() { |
991
|
|
|
return this._y; |
992
|
|
|
}); |
993
|
|
|
|
994
|
|
|
/** |
995
|
|
|
* Perform image rotation. |
996
|
|
|
* |
997
|
|
|
* @param {number} deg Absolute image angle. The method will work with values 0, 90, 180, 270 degrees. |
998
|
|
|
*/ |
999
|
|
|
this.angle = setter(function(deg) { |
1000
|
|
|
var prevSwap = this._swapDimensions; |
1001
|
|
|
|
1002
|
|
|
this._angle = deg; |
1003
|
|
|
this._swapDimensions = deg % 180 !== 0; |
1004
|
|
|
|
1005
|
|
|
if (prevSwap !== this._swapDimensions) { |
1006
|
|
|
var verticalMod = this._swapDimensions ? -1 : 1; |
1007
|
|
|
this.x(this.x() - verticalMod * this.display_diff() / 2, true); |
1008
|
|
|
this.y(this.y() + verticalMod * this.display_diff() / 2, true); |
1009
|
|
|
}; |
1010
|
|
|
|
1011
|
|
|
var cssVal = 'rotate(' + deg + 'deg)', |
1012
|
|
|
img = this._img; |
1013
|
|
|
|
1014
|
|
|
jQuery.each(['', '-webkit-', '-moz-', '-o-', '-ms-'], function(i, prefix) { |
1015
|
|
|
img.css(prefix + 'transform', cssVal); |
1016
|
|
|
}); |
1017
|
|
|
|
1018
|
|
|
if (useIeTransforms) { |
1019
|
|
|
jQuery.each(['-ms-', ''], function(i, prefix) { |
1020
|
|
|
img.css(prefix + 'filter', ieTransforms[deg].filter); |
1021
|
|
|
}); |
1022
|
|
|
|
1023
|
|
|
img.css({ |
1024
|
|
|
marginLeft: ieTransforms[deg].marginLeft * this.display_diff() / 2, |
1025
|
|
|
marginTop: ieTransforms[deg].marginTop * this.display_diff() / 2 |
1026
|
|
|
}); |
1027
|
|
|
} |
1028
|
|
|
}, |
1029
|
|
|
function() { return this._angle; }); |
1030
|
|
|
|
1031
|
|
|
/** |
1032
|
|
|
* Map point in the container coordinates to the point in image coordinates. |
1033
|
|
|
* You will get coordinates of point on image with respect to rotation, |
1034
|
|
|
* but will be set as if image was not rotated. |
1035
|
|
|
* So, if image was rotated 90 degrees, it's (0,0) point will be on the |
1036
|
|
|
* top right corner. |
1037
|
|
|
* |
1038
|
|
|
* @param {{x: number, y: number}} point Point in container coordinates. |
1039
|
|
|
* @return {{x: number, y: number}} |
1040
|
|
|
*/ |
1041
|
|
|
this.toOriginalCoords = function(point) { |
1042
|
|
|
switch (this.angle()) { |
1043
|
|
|
case 0: return { x: point.x, y: point.y } |
1044
|
|
|
case 90: return { x: point.y, y: this.display_width() - point.x } |
1045
|
|
|
case 180: return { x: this.display_width() - point.x, y: this.display_height() - point.y } |
1046
|
|
|
case 270: return { x: this.display_height() - point.y, y: point.x } |
1047
|
|
|
} |
|
|
|
|
1048
|
|
|
}; |
1049
|
|
|
|
1050
|
|
|
/** |
1051
|
|
|
* Map point in the image coordinates to the point in container coordinates. |
1052
|
|
|
* You will get coordinates of point on container with respect to rotation. |
1053
|
|
|
* Note, if image was rotated 90 degrees, it's (0,0) point will be on the |
1054
|
|
|
* top right corner. |
1055
|
|
|
* |
1056
|
|
|
* @param {{x: number, y: number}} point Point in container coordinates. |
1057
|
|
|
* @return {{x: number, y: number}} |
1058
|
|
|
*/ |
1059
|
|
|
this.toRealCoords = function(point) { |
1060
|
|
|
switch (this.angle()) { |
1061
|
|
|
case 0: return { x: this.x() + point.x, y: this.y() + point.y } |
1062
|
|
|
case 90: return { x: this.x() + this.display_width() - point.y, y: this.y() + point.x} |
1063
|
|
|
case 180: return { x: this.x() + this.display_width() - point.x, y: this.y() + this.display_height() - point.y} |
1064
|
|
|
case 270: return { x: this.x() + point.y, y: this.y() + this.display_height() - point.x} |
1065
|
|
|
} |
|
|
|
|
1066
|
|
|
}; |
1067
|
|
|
|
1068
|
|
|
/** |
1069
|
|
|
* @return {jQuery} Return image node. this is needed to add event handlers. |
1070
|
|
|
*/ |
1071
|
|
|
this.object = setter(jQuery.noop, |
1072
|
|
|
function() { return this._img; }); |
1073
|
|
|
|
1074
|
|
|
/** |
1075
|
|
|
* Change image properties. |
1076
|
|
|
* |
1077
|
|
|
* @param {number} disp_w Display width; |
1078
|
|
|
* @param {number} disp_h Display height; |
1079
|
|
|
* @param {number} x |
1080
|
|
|
* @param {number} y |
1081
|
|
|
* @param {boolean} skip_animation If true, the animation will be skiped despite the |
1082
|
|
|
* value set in constructor. |
1083
|
|
|
* @param {Function=} complete Call back will be fired when zoom will be complete. |
1084
|
|
|
*/ |
1085
|
|
|
this.setImageProps = function(disp_w, disp_h, x, y, skip_animation, complete) { |
1086
|
|
|
complete = complete || jQuery.noop; |
1087
|
|
|
|
1088
|
|
|
this.display_width(disp_w); |
1089
|
|
|
this.display_height(disp_h); |
1090
|
|
|
this.x(x, true); |
1091
|
|
|
this.y(y, true); |
1092
|
|
|
|
1093
|
|
|
var w = this._swapDimensions ? disp_h : disp_w; |
1094
|
|
|
var h = this._swapDimensions ? disp_w : disp_h; |
1095
|
|
|
|
1096
|
|
|
var params = { |
1097
|
|
|
width: w, |
1098
|
|
|
height: h, |
1099
|
|
|
top: y - (this._swapDimensions ? this.display_diff() / 2 : 0) + "px", |
1100
|
|
|
left: x + (this._swapDimensions ? this.display_diff() / 2 : 0) + "px" |
1101
|
|
|
}; |
1102
|
|
|
|
1103
|
|
|
if (useIeTransforms) { |
1104
|
|
|
jQuery.extend(params, { |
1105
|
|
|
marginLeft: ieTransforms[this.angle()].marginLeft * this.display_diff() / 2, |
1106
|
|
|
marginTop: ieTransforms[this.angle()].marginTop * this.display_diff() / 2 |
1107
|
|
|
}); |
1108
|
|
|
} |
1109
|
|
|
|
1110
|
|
|
var swapDims = this._swapDimensions, |
1111
|
|
|
img = this._img; |
1112
|
|
|
|
1113
|
|
|
//here we come: another IE oddness. If image is rotated 90 degrees with a filter, than |
1114
|
|
|
//width and height getters return real width and height of rotated image. The bad news |
1115
|
|
|
//is that to set height you need to set a width and vice versa. Fuck IE. |
1116
|
|
|
//So, in this case we have to animate width and height manually. |
1117
|
|
|
if(useIeTransforms && swapDims) { |
1118
|
|
|
var ieh = this._img.width(), |
1119
|
|
|
iew = this._img.height(), |
1120
|
|
|
iedh = params.height - ieh; |
1121
|
|
|
iedw = params.width - iew; |
|
|
|
|
1122
|
|
|
|
1123
|
|
|
delete params.width; |
1124
|
|
|
delete params.height; |
1125
|
|
|
} |
1126
|
|
|
|
1127
|
|
|
if (this._do_anim && !skip_animation) { |
1128
|
|
|
this._img.stop(true) |
1129
|
|
|
.animate(params, { |
1130
|
|
|
duration: 200, |
1131
|
|
|
complete: complete, |
1132
|
|
|
step: function(now, fx) { |
1133
|
|
|
if(useIeTransforms && swapDims && (fx.prop === 'top')) { |
1134
|
|
|
var percent = (now - fx.start) / (fx.end - fx.start); |
1135
|
|
|
|
1136
|
|
|
img.height(ieh + iedh * percent); |
|
|
|
|
1137
|
|
|
img.width(iew + iedw * percent); |
|
|
|
|
1138
|
|
|
img.css('top', now); |
1139
|
|
|
} |
1140
|
|
|
} |
1141
|
|
|
}); |
1142
|
|
|
} else { |
1143
|
|
|
this._img.css(params); |
1144
|
|
|
setTimeout(complete, 0); //both if branches should behave equally. |
1145
|
|
|
} |
1146
|
|
|
}; |
1147
|
|
|
|
1148
|
|
|
//if we set image coordinates we need to be sure that no animation is active atm |
1149
|
|
|
this._finishAnimation = function() { |
1150
|
|
|
this._img.stop(true, true); |
1151
|
|
|
} |
1152
|
|
|
|
1153
|
|
|
}).apply($.ui.iviewer.ImageObject.prototype); |
1154
|
|
|
|
1155
|
|
|
|
1156
|
|
|
|
1157
|
|
|
var util = { |
1158
|
|
|
scaleValue: function(value, toZoom) |
1159
|
|
|
{ |
1160
|
|
|
return value * toZoom / 100; |
1161
|
|
|
}, |
1162
|
|
|
|
1163
|
|
|
descaleValue: function(value, fromZoom) |
1164
|
|
|
{ |
1165
|
|
|
return value * 100 / fromZoom; |
1166
|
|
|
} |
1167
|
|
|
}; |
1168
|
|
|
|
1169
|
|
|
} )( jQuery, undefined ); |
1170
|
|
|
|