|
@@ -0,0 +1,1169 @@
|
|
|
+/*
|
|
|
+ * iviewer Widget for jQuery UI
|
|
|
+ * https://github.com/can3p/iviewer
|
|
|
+ *
|
|
|
+ * Copyright (c) 2009 - 2012 Dmitry Petrov
|
|
|
+ * Dual licensed under the MIT and GPL licenses.
|
|
|
+ * - http://www.opensource.org/licenses/mit-license.php
|
|
|
+ * - http://www.gnu.org/copyleft/gpl.html
|
|
|
+ *
|
|
|
+ * Author: Dmitry Petrov
|
|
|
+ * Version: 0.7.7
|
|
|
+ */
|
|
|
+
|
|
|
+( function( $, undefined ) {
|
|
|
+
|
|
|
+//this code was taken from the https://github.com/furf/jquery-ui-touch-punch
|
|
|
+var mouseEvents = {
|
|
|
+ touchstart: 'mousedown',
|
|
|
+ touchmove: 'mousemove',
|
|
|
+ touchend: 'mouseup'
|
|
|
+ },
|
|
|
+ gesturesSupport = 'ongesturestart' in document.createElement('div');
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * Convert a touch event to a mouse-like
|
|
|
+ */
|
|
|
+function makeMouseEvent (event) {
|
|
|
+ var touch = event.originalEvent.changedTouches[0];
|
|
|
+
|
|
|
+ return $.extend(event, {
|
|
|
+ type: mouseEvents[event.type],
|
|
|
+ which: 1,
|
|
|
+ pageX: touch.pageX,
|
|
|
+ pageY: touch.pageY,
|
|
|
+ screenX: touch.screenX,
|
|
|
+ screenY: touch.screenY,
|
|
|
+ clientX: touch.clientX,
|
|
|
+ clientY: touch.clientY,
|
|
|
+ isTouchEvent: true
|
|
|
+ });
|
|
|
+}
|
|
|
+
|
|
|
+var mouseProto = $.ui.mouse.prototype,
|
|
|
+ _mouseInit = $.ui.mouse.prototype._mouseInit;
|
|
|
+
|
|
|
+mouseProto._mouseInit = function() {
|
|
|
+ var self = this;
|
|
|
+ self._touchActive = false;
|
|
|
+
|
|
|
+ this.element.bind( 'touchstart.' + this.widgetName, function(event) {
|
|
|
+ if (gesturesSupport && event.originalEvent.touches.length > 1) { return; }
|
|
|
+ self._touchActive = true;
|
|
|
+ return self._mouseDown(makeMouseEvent(event));
|
|
|
+ })
|
|
|
+
|
|
|
+ var self = this;
|
|
|
+ // these delegates are required to keep context
|
|
|
+ this._mouseMoveDelegate = function(event) {
|
|
|
+ if (gesturesSupport && event.originalEvent.touches && event.originalEvent.touches.length > 1) { return; }
|
|
|
+ if (self._touchActive) {
|
|
|
+ return self._mouseMove(makeMouseEvent(event));
|
|
|
+ }
|
|
|
+ };
|
|
|
+ this._mouseUpDelegate = function(event) {
|
|
|
+ if (self._touchActive) {
|
|
|
+ self._touchActive = false;
|
|
|
+ return self._mouseUp(makeMouseEvent(event));
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ $(document)
|
|
|
+ .bind('touchmove.'+ this.widgetName, this._mouseMoveDelegate)
|
|
|
+ .bind('touchend.' + this.widgetName, this._mouseUpDelegate);
|
|
|
+
|
|
|
+ _mouseInit.apply(this);
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Simple implementation of jQuery like getters/setters
|
|
|
+ * var val = something();
|
|
|
+ * something(val);
|
|
|
+ */
|
|
|
+var setter = function(setter, getter) {
|
|
|
+ return function(val) {
|
|
|
+ if (arguments.length === 0) {
|
|
|
+ return getter.apply(this);
|
|
|
+ } else {
|
|
|
+ setter.apply(this, arguments);
|
|
|
+ }
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+/**
|
|
|
+ * Internet explorer rotates image relative left top corner, so we should
|
|
|
+ * shift image when it's rotated.
|
|
|
+ */
|
|
|
+var ieTransforms = {
|
|
|
+ '0': {
|
|
|
+ marginLeft: 0,
|
|
|
+ marginTop: 0,
|
|
|
+ filter: 'progid:DXImageTransform.Microsoft.Matrix(M11=1, M12=0, M21=0, M22=1, SizingMethod="auto expand")'
|
|
|
+ },
|
|
|
+
|
|
|
+ '90': {
|
|
|
+ marginLeft: -1,
|
|
|
+ marginTop: 1,
|
|
|
+ filter: 'progid:DXImageTransform.Microsoft.Matrix(M11=0, M12=-1, M21=1, M22=0, SizingMethod="auto expand")'
|
|
|
+ },
|
|
|
+
|
|
|
+ '180': {
|
|
|
+ marginLeft: 0,
|
|
|
+ marginTop: 0,
|
|
|
+ filter: 'progid:DXImageTransform.Microsoft.Matrix(M11=-1, M12=0, M21=0, M22=-1, SizingMethod="auto expand")'
|
|
|
+ },
|
|
|
+
|
|
|
+ '270': {
|
|
|
+ marginLeft: -1,
|
|
|
+ marginTop: 1,
|
|
|
+ filter: 'progid:DXImageTransform.Microsoft.Matrix(M11=0, M12=1, M21=-1, M22=0, SizingMethod="auto expand")'
|
|
|
+ }
|
|
|
+ },
|
|
|
+ // this test is the inversion of the css filters test from the modernizr project
|
|
|
+ useIeTransforms = function() {
|
|
|
+ var modElem = document.createElement('modernizr'),
|
|
|
+ mStyle = modElem.style,
|
|
|
+ omPrefixes = 'Webkit Moz O ms',
|
|
|
+ domPrefixes = omPrefixes.toLowerCase().split(' '),
|
|
|
+ props = ("transform" + ' ' + domPrefixes.join("Transform ") + "Transform").split(' ');
|
|
|
+ for ( var i in props ) {
|
|
|
+ var prop = props[i];
|
|
|
+ if ( !$.contains(prop, "-") && mStyle[prop] !== undefined ) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return true;
|
|
|
+ }();
|
|
|
+
|
|
|
+$.widget( "ui.iviewer", $.ui.mouse, {
|
|
|
+ widgetEventPrefix: "iviewer",
|
|
|
+ options : {
|
|
|
+ /**
|
|
|
+ * start zoom value for image, not used now
|
|
|
+ * may be equal to "fit" to fit image into container or scale in %
|
|
|
+ **/
|
|
|
+ zoom: "fit",
|
|
|
+ /**
|
|
|
+ * base value to scale image
|
|
|
+ **/
|
|
|
+ zoom_base: 100,
|
|
|
+ /**
|
|
|
+ * maximum zoom
|
|
|
+ **/
|
|
|
+ zoom_max: 800,
|
|
|
+ /**
|
|
|
+ * minimum zoom
|
|
|
+ **/
|
|
|
+ zoom_min: 25,
|
|
|
+ /**
|
|
|
+ * base of rate multiplier.
|
|
|
+ * zoom is calculated by formula: zoom_base * zoom_delta^rate
|
|
|
+ **/
|
|
|
+ zoom_delta: 1.4,
|
|
|
+ /**
|
|
|
+ * whether the zoom should be animated.
|
|
|
+ */
|
|
|
+ zoom_animation: true,
|
|
|
+ /**
|
|
|
+ * if true plugin doesn't add its own controls
|
|
|
+ **/
|
|
|
+ ui_disabled: false,
|
|
|
+ /**
|
|
|
+ * If false mousewheel will be disabled
|
|
|
+ */
|
|
|
+ mousewheel: true,
|
|
|
+ /**
|
|
|
+ * if false, plugin doesn't bind resize event on window and this must
|
|
|
+ * be handled manually
|
|
|
+ **/
|
|
|
+ update_on_resize: true,
|
|
|
+ /**
|
|
|
+ * event is triggered when zoom value is changed
|
|
|
+ * @param int new zoom value
|
|
|
+ * @return boolean if false zoom action is aborted
|
|
|
+ **/
|
|
|
+ onZoom: jQuery.noop,
|
|
|
+ /**
|
|
|
+ * event is triggered when zoom value is changed after image is set to the new dimensions
|
|
|
+ * @param int new zoom value
|
|
|
+ * @return boolean if false zoom action is aborted
|
|
|
+ **/
|
|
|
+ onAfterZoom: jQuery.noop,
|
|
|
+ /**
|
|
|
+ * event is fired on drag begin
|
|
|
+ * @param object coords mouse coordinates on the image
|
|
|
+ * @return boolean if false is returned, drag action is aborted
|
|
|
+ **/
|
|
|
+ onStartDrag: jQuery.noop,
|
|
|
+ /**
|
|
|
+ * event is fired on drag action
|
|
|
+ * @param object coords mouse coordinates on the image
|
|
|
+ **/
|
|
|
+ onDrag: jQuery.noop,
|
|
|
+ /**
|
|
|
+ * event is fired on drag stop
|
|
|
+ * @param object coords mouse coordinates on the image
|
|
|
+ **/
|
|
|
+ onStopDrag: jQuery.noop,
|
|
|
+ /**
|
|
|
+ * event is fired when mouse moves over image
|
|
|
+ * @param object coords mouse coordinates on the image
|
|
|
+ **/
|
|
|
+ onMouseMove: jQuery.noop,
|
|
|
+ /**
|
|
|
+ * mouse click event
|
|
|
+ * @param object coords mouse coordinates on the image
|
|
|
+ **/
|
|
|
+ onClick: jQuery.noop,
|
|
|
+ /**
|
|
|
+ * event is fired when image starts to load
|
|
|
+ */
|
|
|
+ onStartLoad: null,
|
|
|
+ /**
|
|
|
+ * event is fired, when image is loaded and initially positioned
|
|
|
+ */
|
|
|
+ onFinishLoad: null,
|
|
|
+ /**
|
|
|
+ * event is fired when image load error occurs
|
|
|
+ */
|
|
|
+ onErrorLoad: null
|
|
|
+ },
|
|
|
+
|
|
|
+ _create: function() {
|
|
|
+ var me = this;
|
|
|
+
|
|
|
+ //drag variables
|
|
|
+ this.dx = 0;
|
|
|
+ this.dy = 0;
|
|
|
+
|
|
|
+ /* object containing actual information about image
|
|
|
+ * @img_object.object - jquery img object
|
|
|
+ * @img_object.orig_{width|height} - original dimensions
|
|
|
+ * @img_object.display_{width|height} - actual dimensions
|
|
|
+ */
|
|
|
+ this.img_object = {};
|
|
|
+
|
|
|
+ this.zoom_object = {}; //object to show zoom status
|
|
|
+
|
|
|
+ this._angle = 0;
|
|
|
+
|
|
|
+ this.current_zoom = this.options.zoom;
|
|
|
+
|
|
|
+ if(this.options.src === null){
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ this.container = this.element;
|
|
|
+
|
|
|
+ this._updateContainerInfo();
|
|
|
+
|
|
|
+ //init container
|
|
|
+ this.container.css("overflow","hidden");
|
|
|
+
|
|
|
+ if (this.options.update_on_resize == true) {
|
|
|
+ $(window).resize(function() {
|
|
|
+ me.update();
|
|
|
+ });
|
|
|
+ }
|
|
|
+
|
|
|
+ this.img_object = new $.ui.iviewer.ImageObject(this.options.zoom_animation);
|
|
|
+
|
|
|
+ if (this.options.mousewheel) {
|
|
|
+ this.container.bind('mousewheel.iviewer', function(ev, delta)
|
|
|
+ {
|
|
|
+ //this event is there instead of containing div, because
|
|
|
+ //at opera it triggers many times on div
|
|
|
+ var zoom = (delta > 0)?1:-1,
|
|
|
+ container_offset = me.container.offset(),
|
|
|
+ mouse_pos = {
|
|
|
+ //jquery.mousewheel 3.1.0 uses strange MozMousePixelScroll event
|
|
|
+ //which is not being fixed by jQuery.Event
|
|
|
+ x: (ev.pageX || ev.originalEvent.pageX) - container_offset.left,
|
|
|
+ y: (ev.pageY || ev.originalEvent.pageX) - container_offset.top
|
|
|
+ };
|
|
|
+
|
|
|
+ me.zoom_by(zoom, mouse_pos);
|
|
|
+ return false;
|
|
|
+ });
|
|
|
+
|
|
|
+ if (gesturesSupport) {
|
|
|
+ var gestureThrottle = +new Date();
|
|
|
+ var originalScale, originalCenter;
|
|
|
+ this.img_object.object()
|
|
|
+ // .bind('gesturestart', function(ev) {
|
|
|
+ .bind('touchstart', function(ev) {
|
|
|
+ originalScale = me.current_zoom;
|
|
|
+ var touches = ev.originalEvent.touches,
|
|
|
+ container_offset;
|
|
|
+ if (touches.length == 2) {
|
|
|
+ container_offset = me.container.offset();
|
|
|
+ originalCenter = {
|
|
|
+ x: (touches[0].pageX + touches[1].pageX) / 2 - container_offset.left,
|
|
|
+ y: (touches[0].pageY + touches[1].pageY) / 2 - container_offset.top
|
|
|
+ };
|
|
|
+ } else {
|
|
|
+ originalCenter = null;
|
|
|
+ }
|
|
|
+ }).bind('gesturechange', function(ev) {
|
|
|
+ //do not want to import throttle function from underscore
|
|
|
+ var d = +new Date();
|
|
|
+ if ((d - gestureThrottle) < 50) { return; }
|
|
|
+ gestureThrottle = d;
|
|
|
+ var zoom = originalScale * ev.originalEvent.scale;
|
|
|
+ me.set_zoom(zoom, originalCenter);
|
|
|
+ ev.preventDefault();
|
|
|
+ }).bind('gestureend', function(ev) {
|
|
|
+ originalCenter = null;
|
|
|
+ });
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ //init object
|
|
|
+ this.img_object.object()
|
|
|
+ //bind mouse events
|
|
|
+ .click(function(e){return me._click(e)})
|
|
|
+ .prependTo(this.container);
|
|
|
+
|
|
|
+ this.container.bind('mousemove', function(ev) { me._handleMouseMove(ev); });
|
|
|
+
|
|
|
+ this.loadImage(this.options.src);
|
|
|
+
|
|
|
+ if(!this.options.ui_disabled)
|
|
|
+ {
|
|
|
+ this.createui();
|
|
|
+ }
|
|
|
+
|
|
|
+ this._mouseInit();
|
|
|
+ },
|
|
|
+
|
|
|
+ destroy: function() {
|
|
|
+ $.Widget.prototype.destroy.call( this );
|
|
|
+ this._mouseDestroy();
|
|
|
+ this.img_object.object().remove();
|
|
|
+ this.container.off('.iviewer');
|
|
|
+ this.container.css('overflow', ''); //cleanup styles on destroy
|
|
|
+ },
|
|
|
+
|
|
|
+ _updateContainerInfo: function()
|
|
|
+ {
|
|
|
+ this.options.height = this.container.height();
|
|
|
+ this.options.width = this.container.width();
|
|
|
+ },
|
|
|
+
|
|
|
+ update: function()
|
|
|
+ {
|
|
|
+ this._updateContainerInfo()
|
|
|
+ this.setCoords(this.img_object.x(), this.img_object.y());
|
|
|
+ },
|
|
|
+
|
|
|
+ loadImage: function( src )
|
|
|
+ {
|
|
|
+ this.current_zoom = this.options.zoom;
|
|
|
+ var me = this;
|
|
|
+
|
|
|
+ this._trigger('onStartLoad', 0, src);
|
|
|
+
|
|
|
+ this.container.addClass("iviewer_loading");
|
|
|
+ this.img_object.load(src, function() {
|
|
|
+ me._imageLoaded(src);
|
|
|
+ }, function() {
|
|
|
+ me._trigger("onErrorLoad", 0, src);
|
|
|
+ });
|
|
|
+ },
|
|
|
+
|
|
|
+ _imageLoaded: function(src) {
|
|
|
+ this.container.removeClass("iviewer_loading");
|
|
|
+ this.container.addClass("iviewer_cursor");
|
|
|
+
|
|
|
+ if(this.options.zoom == "fit"){
|
|
|
+ this.fit(true);
|
|
|
+ }
|
|
|
+ else {
|
|
|
+ this.set_zoom(this.options.zoom, true);
|
|
|
+ }
|
|
|
+
|
|
|
+ this._trigger('onFinishLoad', 0, src);
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * fits image in the container
|
|
|
+ *
|
|
|
+ * @param {boolean} skip_animation
|
|
|
+ **/
|
|
|
+ fit: function(skip_animation)
|
|
|
+ {
|
|
|
+ var aspect_ratio = this.img_object.orig_width() / this.img_object.orig_height();
|
|
|
+ var window_ratio = this.options.width / this.options.height;
|
|
|
+ var choose_left = (aspect_ratio > window_ratio);
|
|
|
+ var new_zoom = 0;
|
|
|
+
|
|
|
+ if(choose_left){
|
|
|
+ new_zoom = this.options.width / this.img_object.orig_width() * 100;
|
|
|
+ }
|
|
|
+ else {
|
|
|
+ new_zoom = this.options.height / this.img_object.orig_height() * 100;
|
|
|
+ }
|
|
|
+
|
|
|
+ this.set_zoom(new_zoom, skip_animation);
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * center image in container
|
|
|
+ **/
|
|
|
+ center: function()
|
|
|
+ {
|
|
|
+ this.setCoords(-Math.round((this.img_object.display_width() - this.options.width)/2),
|
|
|
+ -Math.round((this.img_object.display_height() - this.options.height)/2));
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * move a point in container to the center of display area
|
|
|
+ * @param x a point in container
|
|
|
+ * @param y a point in container
|
|
|
+ **/
|
|
|
+ moveTo: function(x, y)
|
|
|
+ {
|
|
|
+ var dx = x-Math.round(this.options.width/2);
|
|
|
+ var dy = y-Math.round(this.options.height/2);
|
|
|
+
|
|
|
+ var new_x = this.img_object.x() - dx;
|
|
|
+ var new_y = this.img_object.y() - dy;
|
|
|
+
|
|
|
+ this.setCoords(new_x, new_y);
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Get container offset object.
|
|
|
+ */
|
|
|
+ getContainerOffset: function() {
|
|
|
+ return jQuery.extend({}, this.container.offset());
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * set coordinates of upper left corner of image object
|
|
|
+ **/
|
|
|
+ setCoords: function(x,y)
|
|
|
+ {
|
|
|
+ //do nothing while image is being loaded
|
|
|
+ if(!this.img_object.loaded()) { return; }
|
|
|
+
|
|
|
+ var coords = this._correctCoords(x,y);
|
|
|
+ this.img_object.x(coords.x);
|
|
|
+ this.img_object.y(coords.y);
|
|
|
+ },
|
|
|
+
|
|
|
+ _correctCoords: function( x, y )
|
|
|
+ {
|
|
|
+ x = parseInt(x, 10);
|
|
|
+ y = parseInt(y, 10);
|
|
|
+
|
|
|
+ //check new coordinates to be correct (to be in rect)
|
|
|
+ if(y > 0){
|
|
|
+ y = 0;
|
|
|
+ }
|
|
|
+ if(x > 0){
|
|
|
+ x = 0;
|
|
|
+ }
|
|
|
+ if(y + this.img_object.display_height() < this.options.height){
|
|
|
+ y = this.options.height - this.img_object.display_height();
|
|
|
+ }
|
|
|
+ if(x + this.img_object.display_width() < this.options.width){
|
|
|
+ x = this.options.width - this.img_object.display_width();
|
|
|
+ }
|
|
|
+ if(this.img_object.display_width() <= this.options.width){
|
|
|
+ x = -(this.img_object.display_width() - this.options.width)/2;
|
|
|
+ }
|
|
|
+ if(this.img_object.display_height() <= this.options.height){
|
|
|
+ y = -(this.img_object.display_height() - this.options.height)/2;
|
|
|
+ }
|
|
|
+
|
|
|
+ return { x: x, y:y };
|
|
|
+ },
|
|
|
+
|
|
|
+
|
|
|
+ /**
|
|
|
+ * convert coordinates on the container to the coordinates on the image (in original size)
|
|
|
+ *
|
|
|
+ * @return object with fields x,y according to coordinates or false
|
|
|
+ * if initial coords are not inside image
|
|
|
+ **/
|
|
|
+ containerToImage : function (x,y)
|
|
|
+ {
|
|
|
+ var coords = { x : x - this.img_object.x(),
|
|
|
+ y : y - this.img_object.y()
|
|
|
+ };
|
|
|
+
|
|
|
+ coords = this.img_object.toOriginalCoords(coords);
|
|
|
+
|
|
|
+ return { x : util.descaleValue(coords.x, this.current_zoom),
|
|
|
+ y : util.descaleValue(coords.y, this.current_zoom)
|
|
|
+ };
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * convert coordinates on the image (in original size, and zero angle) to the coordinates on the container
|
|
|
+ *
|
|
|
+ * @return object with fields x,y according to coordinates
|
|
|
+ **/
|
|
|
+ imageToContainer : function (x,y)
|
|
|
+ {
|
|
|
+ var coords = {
|
|
|
+ x : util.scaleValue(x, this.current_zoom),
|
|
|
+ y : util.scaleValue(y, this.current_zoom)
|
|
|
+ };
|
|
|
+
|
|
|
+ return this.img_object.toRealCoords(coords);
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * get mouse coordinates on the image
|
|
|
+ * @param e - object containing pageX and pageY fields, e.g. mouse event object
|
|
|
+ *
|
|
|
+ * @return object with fields x,y according to coordinates or false
|
|
|
+ * if initial coords are not inside image
|
|
|
+ **/
|
|
|
+ _getMouseCoords : function(e)
|
|
|
+ {
|
|
|
+ var containerOffset = this.container.offset();
|
|
|
+ coords = this.containerToImage(e.pageX - containerOffset.left, e.pageY - containerOffset.top);
|
|
|
+
|
|
|
+ return coords;
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * set image scale to the new_zoom
|
|
|
+ *
|
|
|
+ * @param {number} new_zoom image scale in %
|
|
|
+ * @param {boolean} skip_animation
|
|
|
+ * @param {x: number, y: number} Coordinates of point the should not be moved on zoom. The default is the center of image.
|
|
|
+ **/
|
|
|
+ set_zoom: function(new_zoom, skip_animation, zoom_center)
|
|
|
+ {
|
|
|
+ if (this._trigger('onZoom', 0, new_zoom) == false) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ //do nothing while image is being loaded
|
|
|
+ if(!this.img_object.loaded()) { return; }
|
|
|
+
|
|
|
+ zoom_center = zoom_center || {
|
|
|
+ x: Math.round(this.options.width/2),
|
|
|
+ y: Math.round(this.options.height/2)
|
|
|
+ }
|
|
|
+
|
|
|
+ if(new_zoom < this.options.zoom_min)
|
|
|
+ {
|
|
|
+ new_zoom = this.options.zoom_min;
|
|
|
+ }
|
|
|
+ else if(new_zoom > this.options.zoom_max)
|
|
|
+ {
|
|
|
+ new_zoom = this.options.zoom_max;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* we fake these values to make fit zoom properly work */
|
|
|
+ if(this.current_zoom == "fit")
|
|
|
+ {
|
|
|
+ var old_x = zoom_center.x + Math.round(this.img_object.orig_width()/2);
|
|
|
+ var old_y = zoom_center.y + Math.round(this.img_object.orig_height()/2);
|
|
|
+ this.current_zoom = 100;
|
|
|
+ }
|
|
|
+ else {
|
|
|
+ var old_x = -this.img_object.x() + zoom_center.x;
|
|
|
+ var old_y = -this.img_object.y() + zoom_center.y
|
|
|
+ }
|
|
|
+
|
|
|
+ var new_width = util.scaleValue(this.img_object.orig_width(), new_zoom);
|
|
|
+ var new_height = util.scaleValue(this.img_object.orig_height(), new_zoom);
|
|
|
+ var new_x = util.scaleValue( util.descaleValue(old_x, this.current_zoom), new_zoom);
|
|
|
+ var new_y = util.scaleValue( util.descaleValue(old_y, this.current_zoom), new_zoom);
|
|
|
+
|
|
|
+ new_x = zoom_center.x - new_x;
|
|
|
+ new_y = zoom_center.y - new_y;
|
|
|
+
|
|
|
+ new_width = Math.floor(new_width);
|
|
|
+ new_height = Math.floor(new_height);
|
|
|
+ new_x = Math.floor(new_x);
|
|
|
+ new_y = Math.floor(new_y);
|
|
|
+
|
|
|
+ this.img_object.display_width(new_width);
|
|
|
+ this.img_object.display_height(new_height);
|
|
|
+
|
|
|
+ var coords = this._correctCoords( new_x, new_y ),
|
|
|
+ self = this;
|
|
|
+
|
|
|
+ this.img_object.setImageProps(new_width, new_height, coords.x, coords.y,
|
|
|
+ skip_animation, function() {
|
|
|
+ self._trigger('onAfterZoom', 0, new_zoom );
|
|
|
+ });
|
|
|
+ this.current_zoom = new_zoom;
|
|
|
+
|
|
|
+ this.update_status();
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * changes zoom scale by delta
|
|
|
+ * zoom is calculated by formula: zoom_base * zoom_delta^rate
|
|
|
+ * @param Integer delta number to add to the current multiplier rate number
|
|
|
+ * @param {x: number, y: number=} Coordinates of point the should not be moved on zoom.
|
|
|
+ **/
|
|
|
+ zoom_by: function(delta, zoom_center)
|
|
|
+ {
|
|
|
+ var closest_rate = this.find_closest_zoom_rate(this.current_zoom);
|
|
|
+
|
|
|
+ var next_rate = closest_rate + delta;
|
|
|
+ var next_zoom = this.options.zoom_base * Math.pow(this.options.zoom_delta, next_rate)
|
|
|
+ if(delta > 0 && next_zoom < this.current_zoom)
|
|
|
+ {
|
|
|
+ next_zoom *= this.options.zoom_delta;
|
|
|
+ }
|
|
|
+
|
|
|
+ if(delta < 0 && next_zoom > this.current_zoom)
|
|
|
+ {
|
|
|
+ next_zoom /= this.options.zoom_delta;
|
|
|
+ }
|
|
|
+
|
|
|
+ this.set_zoom(next_zoom, undefined, zoom_center);
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Rotate image
|
|
|
+ * @param {num} deg Degrees amount to rotate. Positive values rotate image clockwise.
|
|
|
+ * Currently 0, 90, 180, 270 and -90, -180, -270 values are supported
|
|
|
+ *
|
|
|
+ * @param {boolean} abs If the flag is true if, the deg parameter will be considered as
|
|
|
+ * a absolute value and relative otherwise.
|
|
|
+ * @return {num|null} Method will return current image angle if called without any arguments.
|
|
|
+ **/
|
|
|
+ angle: function(deg, abs) {
|
|
|
+ if (arguments.length === 0) { return this.img_object.angle(); }
|
|
|
+
|
|
|
+ if (deg < -270 || deg > 270 || deg % 90 !== 0) { return; }
|
|
|
+ if (!abs) { deg += this.img_object.angle(); }
|
|
|
+ if (deg < 0) { deg += 360; }
|
|
|
+ if (deg >= 360) { deg -= 360; }
|
|
|
+
|
|
|
+ if (deg === this.img_object.angle()) { return; }
|
|
|
+
|
|
|
+ this.img_object.angle(deg);
|
|
|
+ //the rotate behavior is different in all editors. For now we just center the
|
|
|
+ //image. However, it will be better to try to keep the position.
|
|
|
+ this.center();
|
|
|
+ this._trigger('angle', 0, { angle: this.img_object.angle() });
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * finds closest multiplier rate for value
|
|
|
+ * basing on zoom_base and zoom_delta values from settings
|
|
|
+ * @param Number value zoom value to examine
|
|
|
+ **/
|
|
|
+ find_closest_zoom_rate: function(value)
|
|
|
+ {
|
|
|
+ if(value == this.options.zoom_base)
|
|
|
+ {
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ function div(val1,val2) { return val1 / val2 };
|
|
|
+ function mul(val1,val2) { return val1 * val2 };
|
|
|
+
|
|
|
+ var func = (value > this.options.zoom_base)?mul:div;
|
|
|
+ var sgn = (value > this.options.zoom_base)?1:-1;
|
|
|
+
|
|
|
+ var mltplr = this.options.zoom_delta;
|
|
|
+ var rate = 1;
|
|
|
+
|
|
|
+ while(Math.abs(func(this.options.zoom_base, Math.pow(mltplr,rate)) - value) >
|
|
|
+ Math.abs(func(this.options.zoom_base, Math.pow(mltplr,rate+1)) - value))
|
|
|
+ {
|
|
|
+ rate++;
|
|
|
+ }
|
|
|
+
|
|
|
+ return sgn * rate;
|
|
|
+ },
|
|
|
+
|
|
|
+ /* update scale info in the container */
|
|
|
+ update_status: function()
|
|
|
+ {
|
|
|
+ if(!this.options.ui_disabled)
|
|
|
+ {
|
|
|
+ var percent = Math.round(100*this.img_object.display_height()/this.img_object.orig_height());
|
|
|
+ if(percent)
|
|
|
+ {
|
|
|
+ this.zoom_object.html(percent + "%");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Get some information about the image.
|
|
|
+ * Currently orig_(width|height), display_(width|height), angle, zoom and src params are supported.
|
|
|
+ *
|
|
|
+ * @param {string} parameter to check
|
|
|
+ * @param {boolean} withoutRotation if param is orig_width or orig_height and this flag is set to true,
|
|
|
+ * method will return original image width without considering rotation.
|
|
|
+ *
|
|
|
+ */
|
|
|
+ info: function(param, withoutRotation) {
|
|
|
+ if (!param) { return; }
|
|
|
+
|
|
|
+ switch (param) {
|
|
|
+ case 'orig_width':
|
|
|
+ case 'orig_height':
|
|
|
+ if (withoutRotation) {
|
|
|
+ return (this.img_object.angle() % 180 === 0 ? this.img_object[param]() :
|
|
|
+ param === 'orig_width' ? this.img_object.orig_height() :
|
|
|
+ this.img_object.orig_width());
|
|
|
+ } else {
|
|
|
+ return this.img_object[param]();
|
|
|
+ }
|
|
|
+ case 'display_width':
|
|
|
+ case 'display_height':
|
|
|
+ case 'angle':
|
|
|
+ return this.img_object[param]();
|
|
|
+ case 'zoom':
|
|
|
+ return this.current_zoom;
|
|
|
+ case 'src':
|
|
|
+ return this.img_object.object().attr('src');
|
|
|
+ case 'coords':
|
|
|
+ return {
|
|
|
+ x: this.img_object.x(),
|
|
|
+ y: this.img_object.y()
|
|
|
+ };
|
|
|
+ }
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * callback for handling mousdown event to start dragging image
|
|
|
+ **/
|
|
|
+ _mouseStart: function( e )
|
|
|
+ {
|
|
|
+ $.ui.mouse.prototype._mouseStart.call(this, e);
|
|
|
+ if (this._trigger('onStartDrag', 0, this._getMouseCoords(e)) === false) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* start drag event*/
|
|
|
+ this.container.addClass("iviewer_drag_cursor");
|
|
|
+
|
|
|
+ //#10: fix movement quirks for ipad
|
|
|
+ this._dragInitialized = !(e.originalEvent.changedTouches && e.originalEvent.changedTouches.length==1);
|
|
|
+
|
|
|
+ this.dx = e.pageX - this.img_object.x();
|
|
|
+ this.dy = e.pageY - this.img_object.y();
|
|
|
+ return true;
|
|
|
+ },
|
|
|
+
|
|
|
+ _mouseCapture: function( e ) {
|
|
|
+ return true;
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Handle mouse move if needed. User can avoid using this callback, because
|
|
|
+ * he can get the same information through public methods.
|
|
|
+ * @param {jQuery.Event} e
|
|
|
+ */
|
|
|
+ _handleMouseMove: function(e) {
|
|
|
+ this._trigger('onMouseMove', e, this._getMouseCoords(e));
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * callback for handling mousemove event to drag image
|
|
|
+ **/
|
|
|
+ _mouseDrag: function(e)
|
|
|
+ {
|
|
|
+ $.ui.mouse.prototype._mouseDrag.call(this, e);
|
|
|
+
|
|
|
+ //#10: imitate mouseStart, because we can get here without it on iPad for some reason
|
|
|
+ if (!this._dragInitialized) {
|
|
|
+ this.dx = e.pageX - this.img_object.x();
|
|
|
+ this.dy = e.pageY - this.img_object.y();
|
|
|
+ this._dragInitialized = true;
|
|
|
+ }
|
|
|
+
|
|
|
+ var ltop = e.pageY - this.dy;
|
|
|
+ var lleft = e.pageX - this.dx;
|
|
|
+
|
|
|
+ this.setCoords(lleft, ltop);
|
|
|
+ this._trigger('onDrag', e, this._getMouseCoords(e));
|
|
|
+ return false;
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * callback for handling stop drag
|
|
|
+ **/
|
|
|
+ _mouseStop: function(e)
|
|
|
+ {
|
|
|
+ $.ui.mouse.prototype._mouseStop.call(this, e);
|
|
|
+ this.container.removeClass("iviewer_drag_cursor");
|
|
|
+ this._trigger('onStopDrag', 0, this._getMouseCoords(e));
|
|
|
+ },
|
|
|
+
|
|
|
+ _click: function(e)
|
|
|
+ {
|
|
|
+ this._trigger('onClick', 0, this._getMouseCoords(e));
|
|
|
+ },
|
|
|
+
|
|
|
+ /**
|
|
|
+ * create zoom buttons info box
|
|
|
+ **/
|
|
|
+ createui: function()
|
|
|
+ {
|
|
|
+ var me=this;
|
|
|
+
|
|
|
+ $("<div>", { 'class': "iviewer_zoom_in iviewer_common iviewer_button"})
|
|
|
+ .bind('mousedown touchstart',function(){me.zoom_by(1); return false;})
|
|
|
+ .appendTo(this.container);
|
|
|
+
|
|
|
+ $("<div>", { 'class': "iviewer_zoom_out iviewer_common iviewer_button"})
|
|
|
+ .bind('mousedown touchstart',function(){me.zoom_by(- 1); return false;})
|
|
|
+ .appendTo(this.container);
|
|
|
+
|
|
|
+ $("<div>", { 'class': "iviewer_zoom_zero iviewer_common iviewer_button"})
|
|
|
+ .bind('mousedown touchstart',function(){me.set_zoom(100); return false;})
|
|
|
+ .appendTo(this.container);
|
|
|
+
|
|
|
+ $("<div>", { 'class': "iviewer_zoom_fit iviewer_common iviewer_button"})
|
|
|
+ .bind('mousedown touchstart',function(){me.fit(this); return false;})
|
|
|
+ .appendTo(this.container);
|
|
|
+
|
|
|
+ this.zoom_object = $("<div>").addClass("iviewer_zoom_status iviewer_common")
|
|
|
+ .appendTo(this.container);
|
|
|
+
|
|
|
+ $("<div>", { 'class': "iviewer_rotate_left iviewer_common iviewer_button"})
|
|
|
+ .bind('mousedown touchstart',function(){me.angle(-90); return false;})
|
|
|
+ .appendTo(this.container);
|
|
|
+
|
|
|
+ $("<div>", { 'class': "iviewer_rotate_right iviewer_common iviewer_button" })
|
|
|
+ .bind('mousedown touchstart',function(){me.angle(90); return false;})
|
|
|
+ .appendTo(this.container);
|
|
|
+
|
|
|
+ this.update_status(); //initial status update
|
|
|
+ }
|
|
|
+
|
|
|
+} );
|
|
|
+
|
|
|
+/**
|
|
|
+ * @class $.ui.iviewer.ImageObject Class represents image and provides public api without
|
|
|
+ * extending image prototype.
|
|
|
+ * @constructor
|
|
|
+ * @param {boolean} do_anim Do we want to animate image on dimension changes?
|
|
|
+ */
|
|
|
+$.ui.iviewer.ImageObject = function(do_anim) {
|
|
|
+ this._img = $("<img>")
|
|
|
+ //this is needed, because chromium sets them auto otherwise
|
|
|
+ .css({ position: "absolute", top :"0px", left: "0px"});
|
|
|
+
|
|
|
+ this._loaded = false;
|
|
|
+ this._swapDimensions = false;
|
|
|
+ this._do_anim = do_anim || false;
|
|
|
+ this.x(0, true);
|
|
|
+ this.y(0, true);
|
|
|
+ this.angle(0);
|
|
|
+};
|
|
|
+
|
|
|
+
|
|
|
+/** @lends $.ui.iviewer.ImageObject.prototype */
|
|
|
+(function() {
|
|
|
+ /**
|
|
|
+ * Restore initial object state.
|
|
|
+ *
|
|
|
+ * @param {number} w Image width.
|
|
|
+ * @param {number} h Image height.
|
|
|
+ */
|
|
|
+ this._reset = function(w, h) {
|
|
|
+ this._angle = 0;
|
|
|
+ this._swapDimensions = false;
|
|
|
+ this.x(0);
|
|
|
+ this.y(0);
|
|
|
+
|
|
|
+ this.orig_width(w);
|
|
|
+ this.orig_height(h);
|
|
|
+ this.display_width(w);
|
|
|
+ this.display_height(h);
|
|
|
+ };
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Check if image is loaded.
|
|
|
+ *
|
|
|
+ * @return {boolean}
|
|
|
+ */
|
|
|
+ this.loaded = function() { return this._loaded; };
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Load image.
|
|
|
+ *
|
|
|
+ * @param {string} src Image url.
|
|
|
+ * @param {Function=} loaded Function will be called on image load.
|
|
|
+ */
|
|
|
+ this.load = function(src, loaded, error) {
|
|
|
+ var self = this;
|
|
|
+
|
|
|
+ loaded = loaded || jQuery.noop;
|
|
|
+ this._loaded = false;
|
|
|
+
|
|
|
+ //If we assign new image url to the this._img IE9 fires onload event and image width and
|
|
|
+ //height are set to zero. So, we create another image object and load image through it.
|
|
|
+ var img = new Image();
|
|
|
+ img.onload = function() {
|
|
|
+ self._loaded = true;
|
|
|
+ self._reset(this.width, this.height);
|
|
|
+
|
|
|
+ self._img
|
|
|
+ .removeAttr("width")
|
|
|
+ .removeAttr("height")
|
|
|
+ .removeAttr("style")
|
|
|
+ //max-width is reset, because plugin breaks in the twitter bootstrap otherwise
|
|
|
+ .css({ position: "absolute", top :"0px", left: "0px", maxWidth: "none"})
|
|
|
+
|
|
|
+ self._img[0].src = src;
|
|
|
+ loaded();
|
|
|
+ };
|
|
|
+
|
|
|
+ img.onerror = error;
|
|
|
+
|
|
|
+ //we need this because sometimes internet explorer 8 fires onload event
|
|
|
+ //right after assignment (synchronously)
|
|
|
+ setTimeout(function() {
|
|
|
+ img.src = src;
|
|
|
+ }, 0);
|
|
|
+
|
|
|
+ this.angle(0);
|
|
|
+ };
|
|
|
+
|
|
|
+ this._dimension = function(prefix, name) {
|
|
|
+ var horiz = '_' + prefix + '_' + name,
|
|
|
+ vert = '_' + prefix + '_' + (name === 'height' ? 'width' : 'height');
|
|
|
+ return setter(function(val) {
|
|
|
+ this[this._swapDimensions ? horiz: vert] = val;
|
|
|
+ },
|
|
|
+ function() {
|
|
|
+ return this[this._swapDimensions ? horiz: vert];
|
|
|
+ });
|
|
|
+ };
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Getters and setter for common image dimensions.
|
|
|
+ * display_ means real image tag dimensions
|
|
|
+ * orig_ means physical image dimensions.
|
|
|
+ * Note, that dimensions are swapped if image is rotated. It necessary,
|
|
|
+ * because as little as possible code should know about rotation.
|
|
|
+ */
|
|
|
+ this.display_width = this._dimension('display', 'width'),
|
|
|
+ this.display_height = this._dimension('display', 'height'),
|
|
|
+ this.display_diff = function() { return Math.floor( this.display_width() - this.display_height() ) };
|
|
|
+ this.orig_width = this._dimension('orig', 'width'),
|
|
|
+ this.orig_height = this._dimension('orig', 'height'),
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Setter for X coordinate. If image is rotated we need to additionaly shift an
|
|
|
+ * image to map image coordinate to the visual position.
|
|
|
+ *
|
|
|
+ * @param {number} val Coordinate value.
|
|
|
+ * @param {boolean} skipCss If true, we only set the value and do not touch the dom.
|
|
|
+ */
|
|
|
+ this.x = setter(function(val, skipCss) {
|
|
|
+ this._x = val;
|
|
|
+ if (!skipCss) {
|
|
|
+ this._finishAnimation();
|
|
|
+ this._img.css("left",this._x + (this._swapDimensions ? this.display_diff() / 2 : 0) + "px");
|
|
|
+ }
|
|
|
+ },
|
|
|
+ function() {
|
|
|
+ return this._x;
|
|
|
+ });
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Setter for Y coordinate. If image is rotated we need to additionaly shift an
|
|
|
+ * image to map image coordinate to the visual position.
|
|
|
+ *
|
|
|
+ * @param {number} val Coordinate value.
|
|
|
+ * @param {boolean} skipCss If true, we only set the value and do not touch the dom.
|
|
|
+ */
|
|
|
+ this.y = setter(function(val, skipCss) {
|
|
|
+ this._y = val;
|
|
|
+ if (!skipCss) {
|
|
|
+ this._finishAnimation();
|
|
|
+ this._img.css("top",this._y - (this._swapDimensions ? this.display_diff() / 2 : 0) + "px");
|
|
|
+ }
|
|
|
+ },
|
|
|
+ function() {
|
|
|
+ return this._y;
|
|
|
+ });
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Perform image rotation.
|
|
|
+ *
|
|
|
+ * @param {number} deg Absolute image angle. The method will work with values 0, 90, 180, 270 degrees.
|
|
|
+ */
|
|
|
+ this.angle = setter(function(deg) {
|
|
|
+ var prevSwap = this._swapDimensions;
|
|
|
+
|
|
|
+ this._angle = deg;
|
|
|
+ this._swapDimensions = deg % 180 !== 0;
|
|
|
+
|
|
|
+ if (prevSwap !== this._swapDimensions) {
|
|
|
+ var verticalMod = this._swapDimensions ? -1 : 1;
|
|
|
+ this.x(this.x() - verticalMod * this.display_diff() / 2, true);
|
|
|
+ this.y(this.y() + verticalMod * this.display_diff() / 2, true);
|
|
|
+ };
|
|
|
+
|
|
|
+ var cssVal = 'rotate(' + deg + 'deg)',
|
|
|
+ img = this._img;
|
|
|
+
|
|
|
+ jQuery.each(['', '-webkit-', '-moz-', '-o-', '-ms-'], function(i, prefix) {
|
|
|
+ img.css(prefix + 'transform', cssVal);
|
|
|
+ });
|
|
|
+
|
|
|
+ if (useIeTransforms) {
|
|
|
+ jQuery.each(['-ms-', ''], function(i, prefix) {
|
|
|
+ img.css(prefix + 'filter', ieTransforms[deg].filter);
|
|
|
+ });
|
|
|
+
|
|
|
+ img.css({
|
|
|
+ marginLeft: ieTransforms[deg].marginLeft * this.display_diff() / 2,
|
|
|
+ marginTop: ieTransforms[deg].marginTop * this.display_diff() / 2
|
|
|
+ });
|
|
|
+ }
|
|
|
+ },
|
|
|
+ function() { return this._angle; });
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Map point in the container coordinates to the point in image coordinates.
|
|
|
+ * You will get coordinates of point on image with respect to rotation,
|
|
|
+ * but will be set as if image was not rotated.
|
|
|
+ * So, if image was rotated 90 degrees, it's (0,0) point will be on the
|
|
|
+ * top right corner.
|
|
|
+ *
|
|
|
+ * @param {{x: number, y: number}} point Point in container coordinates.
|
|
|
+ * @return {{x: number, y: number}}
|
|
|
+ */
|
|
|
+ this.toOriginalCoords = function(point) {
|
|
|
+ switch (this.angle()) {
|
|
|
+ case 0: return { x: point.x, y: point.y }
|
|
|
+ case 90: return { x: point.y, y: this.display_width() - point.x }
|
|
|
+ case 180: return { x: this.display_width() - point.x, y: this.display_height() - point.y }
|
|
|
+ case 270: return { x: this.display_height() - point.y, y: point.x }
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Map point in the image coordinates to the point in container coordinates.
|
|
|
+ * You will get coordinates of point on container with respect to rotation.
|
|
|
+ * Note, if image was rotated 90 degrees, it's (0,0) point will be on the
|
|
|
+ * top right corner.
|
|
|
+ *
|
|
|
+ * @param {{x: number, y: number}} point Point in container coordinates.
|
|
|
+ * @return {{x: number, y: number}}
|
|
|
+ */
|
|
|
+ this.toRealCoords = function(point) {
|
|
|
+ switch (this.angle()) {
|
|
|
+ case 0: return { x: this.x() + point.x, y: this.y() + point.y }
|
|
|
+ case 90: return { x: this.x() + this.display_width() - point.y, y: this.y() + point.x}
|
|
|
+ case 180: return { x: this.x() + this.display_width() - point.x, y: this.y() + this.display_height() - point.y}
|
|
|
+ case 270: return { x: this.x() + point.y, y: this.y() + this.display_height() - point.x}
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ /**
|
|
|
+ * @return {jQuery} Return image node. this is needed to add event handlers.
|
|
|
+ */
|
|
|
+ this.object = setter(jQuery.noop,
|
|
|
+ function() { return this._img; });
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Change image properties.
|
|
|
+ *
|
|
|
+ * @param {number} disp_w Display width;
|
|
|
+ * @param {number} disp_h Display height;
|
|
|
+ * @param {number} x
|
|
|
+ * @param {number} y
|
|
|
+ * @param {boolean} skip_animation If true, the animation will be skiped despite the
|
|
|
+ * value set in constructor.
|
|
|
+ * @param {Function=} complete Call back will be fired when zoom will be complete.
|
|
|
+ */
|
|
|
+ this.setImageProps = function(disp_w, disp_h, x, y, skip_animation, complete) {
|
|
|
+ complete = complete || jQuery.noop;
|
|
|
+
|
|
|
+ this.display_width(disp_w);
|
|
|
+ this.display_height(disp_h);
|
|
|
+ this.x(x, true);
|
|
|
+ this.y(y, true);
|
|
|
+
|
|
|
+ var w = this._swapDimensions ? disp_h : disp_w;
|
|
|
+ var h = this._swapDimensions ? disp_w : disp_h;
|
|
|
+
|
|
|
+ var params = {
|
|
|
+ width: w,
|
|
|
+ height: h,
|
|
|
+ top: y - (this._swapDimensions ? this.display_diff() / 2 : 0) + "px",
|
|
|
+ left: x + (this._swapDimensions ? this.display_diff() / 2 : 0) + "px"
|
|
|
+ };
|
|
|
+
|
|
|
+ if (useIeTransforms) {
|
|
|
+ jQuery.extend(params, {
|
|
|
+ marginLeft: ieTransforms[this.angle()].marginLeft * this.display_diff() / 2,
|
|
|
+ marginTop: ieTransforms[this.angle()].marginTop * this.display_diff() / 2
|
|
|
+ });
|
|
|
+ }
|
|
|
+
|
|
|
+ var swapDims = this._swapDimensions,
|
|
|
+ img = this._img;
|
|
|
+
|
|
|
+ //here we come: another IE oddness. If image is rotated 90 degrees with a filter, than
|
|
|
+ //width and height getters return real width and height of rotated image. The bad news
|
|
|
+ //is that to set height you need to set a width and vice versa. Fuck IE.
|
|
|
+ //So, in this case we have to animate width and height manually.
|
|
|
+ if(useIeTransforms && swapDims) {
|
|
|
+ var ieh = this._img.width(),
|
|
|
+ iew = this._img.height(),
|
|
|
+ iedh = params.height - ieh;
|
|
|
+ iedw = params.width - iew;
|
|
|
+
|
|
|
+ delete params.width;
|
|
|
+ delete params.height;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (this._do_anim && !skip_animation) {
|
|
|
+ this._img.stop(true)
|
|
|
+ .animate(params, {
|
|
|
+ duration: 200,
|
|
|
+ complete: complete,
|
|
|
+ step: function(now, fx) {
|
|
|
+ if(useIeTransforms && swapDims && (fx.prop === 'top')) {
|
|
|
+ var percent = (now - fx.start) / (fx.end - fx.start);
|
|
|
+
|
|
|
+ img.height(ieh + iedh * percent);
|
|
|
+ img.width(iew + iedw * percent);
|
|
|
+ img.css('top', now);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ });
|
|
|
+ } else {
|
|
|
+ this._img.css(params);
|
|
|
+ setTimeout(complete, 0); //both if branches should behave equally.
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ //if we set image coordinates we need to be sure that no animation is active atm
|
|
|
+ this._finishAnimation = function() {
|
|
|
+ this._img.stop(true, true);
|
|
|
+ }
|
|
|
+
|
|
|
+}).apply($.ui.iviewer.ImageObject.prototype);
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+var util = {
|
|
|
+ scaleValue: function(value, toZoom)
|
|
|
+ {
|
|
|
+ return value * toZoom / 100;
|
|
|
+ },
|
|
|
+
|
|
|
+ descaleValue: function(value, fromZoom)
|
|
|
+ {
|
|
|
+ return value * 100 / fromZoom;
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+ } )( jQuery, undefined );
|