front_idill/src/mosaic/js/search.js
author bastiena
Fri, 06 Jul 2012 13:44:25 +0200
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parent 45 0e29ae4568a0
child 47 4e1ee94d70b1
permissions -rw-r--r--
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/*
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 * Lance une recherche par courbes.
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 */
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mosaic.prototype.startSearch = function()
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{
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	var _this = this;
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	var top, left, width, height, margin_top, inMosaic;
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	//Si on est dans le cas d'un filtrage de mosaïque.
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	if(this.currentMode == "FILTER")
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	{
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		var mainPanel = $('#mainPanel');
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		top = mainPanel.position().top;
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		left = mainPanel.position().left;
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		width = mainPanel.width();
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		height = mainPanel.height();
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		margin_top = this.MPTop_margin;
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		inMosaic = true;
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	}
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	//Sinon si c'est une recherche dans la vidéo.
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	else if(this.currentMode == "SEARCH")
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	{
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		top = this.snTop;
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		left = this.snLeft;
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		width = this.snWidth;
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		height = this.snHeight;
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		margin_top = '0px';
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		inMosaic = false;
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	}
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	this.searchCanvas = new searchCanvas(top, left, width, height, margin_top, this.timeSearchFade, inMosaic, this);
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	this.searchCanvas.create(this.dictionary);
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}
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/*
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 * Lit le dictionnaire pour reconnaître les courbes de recherche.
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*/
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mosaic.prototype.getDictionary = function()
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{
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	var path = this.config['dico'];
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	var dico = [];
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	var _this = this;
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	$.getJSON(path, function(data)
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	{
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		for(var i = 0 ; i < data.gestures.length ; i++)
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		{
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			_this.dictionary[i] = data.gestures[i];
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		}
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	});
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}
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/*
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 * Charge le texte affichable en fonction de la langue.
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*/
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mosaic.prototype.getLang = function(lang)
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{
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	var path = 'lang/' + this.config['lang'] + '.json';
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	var _this = this;
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	$.getJSON(path, function(data)
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	{
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		_this.gesturesText = data.gesturesText;
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	});
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}
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mosaic.prototype.listenToPointers = function()
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{
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	if(this.searchCanvas)
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	{
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	}
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}
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/*
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 * Quitte une recherche par courbes.
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 */
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mosaic.prototype.leaveSearch = function()
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{
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	if(this.searchCanvas)
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	{
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		this.searchCanvas.leaveSearch();
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	}
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	this.searchCanvas = null;
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}
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/*
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 * Affiche les types de marqueurs correspondants à ce qu'on a commencé à tracer lors d'une recherche.
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*/
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 mosaic.prototype.notifySearchMarkers = function(markersStr)
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{
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	if($('.notifications_inSearch_container').length > 0)
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	{
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		return;
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	}
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	// console.log(markersStr);
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	var markersList = markersStr.split(new RegExp(';'));
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	var notification_search_markers = "<div class='notifications_inSearch_container'>";
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	//On spécifie les notifications en div.
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	for(var i = 0 ; i < markersList.length ; i++)
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	{
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		notification_search_markers += "<div class='notifications_inSearch' style='background-image: url(./pictos/big/normal/" + markersList[i] + ".png);'></div>";
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	}
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	notification_search_markers += "</div>";
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	//On les ajoute à la mosaïque.
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	$('#mainPanel').append(notification_search_markers);
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	//On calcule leurs coordonnées et dimensions.
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	var notify_width = $('.notifications_inSearch_container').width(), notify_height = $('.notifications_inSearch_container').height();
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	var notify_margin = parseInt($('.notifications_inSearch').css('margin'));
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	var point_left = $(window).width() / 2 - (notify_width) / 2 - notify_margin;
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	var point_top = 0;
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	if(this.currentMode == "VIDEO" || this.currentMode == "SEARCH")
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	{
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		point_top = -this.notifyTopVideo,
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		point_left = -this.notifyLeftVideo + ($(window).width() - notify_width) / 2
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	}
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	//On les positionne.
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	$('.notifications_inSearch_container').css(
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	{
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		left: point_left,
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		top: point_top
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	});
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	//On les fait apparaître.
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	$('.notifications_inSearch').css(
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	{
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		opacity: "0.9"
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	});
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}
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/*
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 * Supprime la notification de maintient du pointage.
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*/
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mosaic.prototype.removeSearchMarkers = function()
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{	
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	$('.notifications_inSearch_container').remove();
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}
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/*
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 * Effectuer un filtrage de la mosaïque par rapport à un type de marqueurs.
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*/
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mosaic.prototype.searchFilter = function(type)
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{
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	var _this = this;
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	if(this.currentMode == "FILTER")
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	{
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		this.filterSearchedType = type;
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		// console.log('Annotations length : ' + this.annotations.length);
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		if(this.annotations.length > 0)
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		{
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			this.isMosaicFiltering = true;
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			var gestureNumberByVideo = new Object();
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			var maxAnnotationNumber = 0;
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			// for(var i = 0 ; i < this.config['imagesToShow'] ; i++)
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			for(var i = 0 ; i < this.annotations.length ; i++)
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			{
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				var current = this.annotations[i];
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				// console.log(current.annotationType.contents.title + ' == ' + type);
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				if(current.annotationType.contents.title == type)
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				{
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					if(gestureNumberByVideo[current.source.url] == undefined || gestureNumberByVideo[current.source.url] == '')
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					{
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						gestureNumberByVideo[current.source.url] = 0;
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					}
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					gestureNumberByVideo[current.source.url]++;
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				}
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			}
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			for(var i = 0 ; i < this.config['imagesToShow'] ; i++)
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			{
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				if(gestureNumberByVideo[this.urls[i]] == undefined || gestureNumberByVideo[this.urls[i]] == '')
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				{
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					gestureNumberByVideo[this.urls[i]] = 0;
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				}
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			}
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			//On récupère la vidéo qui score le nombre d'occurences de la gesture le plus haut.
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			for(i in gestureNumberByVideo)
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			{	
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				// console.log(i + " " + gestureNumberByVideo[i] + ' ' + type);
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				if(maxAnnotationNumber < gestureNumberByVideo[i])
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				{
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					maxAnnotationNumber = gestureNumberByVideo[i];
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				}
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			}
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			var snMargin = parseInt($('.snapshotDivs').css('margin'));
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			//On affiche l'opacité résultante pour chaque vidéo.
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			for(var i = 0 ; i < this.config['imagesToShow'] ; i++)// in gestureNumberByVideo)
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			{
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				//Opacité conventionelle.
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				var opacity = gestureNumberByVideo[this.urls[i]] / maxAnnotationNumber;
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				// console.log('opacity b : ' + opacity + ' for ' + gestureNumberByVideo[i]);
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				//Ce qui est à zéro le restera (par conséquent le snapshot associé sera invisible).
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				if(opacity > 0)
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				{
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					//On réhausse l'opacité de 50%.
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					opacity = this.scaleIntervals(0., 1., 0.5, 1., opacity);	
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				}
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				this.opacities[i] = opacity;
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				//var filterIndex = this.getIdxFromMetadata(i);
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				var filterIndex = i;
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				//if(filterIndex >= 0)
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				//{
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					// console.log('#snapshotDiv-' + filterIndex + " " + _this.config['timeFilterFade'] + " " + opacity);
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					$('#snapshotDiv-' + filterIndex).fadeTo(this.config['timeFilterFade'], opacity, function()
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					{
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						//Pour ne notifier qu'une fois.
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						if(_this.isMosaicFiltering)
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						{
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							_this.isMosaicFiltering = false;
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						}
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					});
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					// console.log('filterIdx : ' + filterIndex);
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					if(opacity == 0)
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					{
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						var filteredSnapshot = $('#snapshotDiv-' + filterIndex);
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						if(filteredSnapshot.length > 0)
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						{
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							var hider = '<div id="filterHider-' + filterIndex + '" class="filterHiders"></div>';
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							$('#mainPanel').append(hider);
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							$('#filterHider-' + filterIndex).css(
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							{
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								width: +filteredSnapshot.width() + 4 * snMargin,
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								height: +filteredSnapshot.height() + 4 * snMargin,
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								top: filteredSnapshot.position().top - snMargin,
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								left: filteredSnapshot.position().left - snMargin
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							});
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						}
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					}
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				//}
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			}
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			// for(var a = 0 ; a < this.config['imagesToShow'] ; a++)
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				// console.log('op : ' + ' ' + this.imgs[a] + ' \t ' + this.opacities[a]);
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			this.isMosaicFiltered = true;
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		}
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	}
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}
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/*
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 * Passe une valeur de l'intervalle [A, B] à l'intervalle [C, D].
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*/
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mosaic.prototype.scaleIntervals = function(A, B, C, D, val)
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{
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	return (D - C + A) * val + (C - A);
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}
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/*
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 * Retourne l'index d'un snapshot en fonction de ses metadonnées.
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*/
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mosaic.prototype.getIdxFromMetadata = function(metadata)
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{
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	var _this = this;
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	for(idx in this.urls)
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	{
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		if(this.urls[idx] == metadata)
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		{
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			for(id in this.ids)
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			{
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				if(this.ids[id] == idx)
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				{
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					return id;
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				}
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			}
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		}
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	}
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	return -1;
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}
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/*
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 * Enlève une recherche par filtre.
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*/
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mosaic.prototype.removeFilter = function()
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{
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	if(this.currentMode == "FILTER")
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	{
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		this.currentMode = "MOSAIC";
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		var _this = this;
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		this.isMosaicFiltered = false;
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		this.filterSearchedType = '';
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		$('#notify_search').remove();
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		$('#notify_search_1gesture').remove();
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		$('.filterHiders').remove();
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		$('.snapshotDivs').fadeTo(_this.config['timeFilterFade'], 1);
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	}
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}
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/*
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 * Parcours le dictionnaire pour trouver la première gesture à avoir un code identique à celui en entrée.
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*/
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mosaic.prototype.gestureWithSameCode = function(code)
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{
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	//Pour tout le dictionnaire.
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	for(var i = 0 ; i < this.dictionary.length ; i++)
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	{
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		//Pour touts les codes de chaque gesture du dictionnaire.
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		for(var j = 0 ; j < this.dictionary[i].codes.length ; j++)
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		{
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			//Si le code en entrée est une partie début d'un des codes.
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			if(this.dictionary[i].codes[j] === code)
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			{
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				//On retourne le nom de la gesture.
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				return this.dictionary[i].name;
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			}
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		}
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	}
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	return '';
44
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}