front_idill/src/mosaic/js/search.js
author bastiena
Wed, 01 Aug 2012 16:44:02 +0200
changeset 63 0947deb9ab6d
parent 58 a28488078053
child 77 205409da0f32
permissions -rw-r--r--
Front IDILL: menu fixed + default language added
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/*
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* This file is part of the TraKERS\Front IDILL package.
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*
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* (c) IRI <http://www.iri.centrepompidou.fr/>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/*
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 * Projet : TraKERS
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 * Module : Front IDILL
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 * Fichier : search.js
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 * 
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 * Auteur : alexandre.bastien@iri.centrepompidou.fr
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 * 
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 * Fonctionnalités : Définit les fonctions de recherche par courbe de haut niveau (instantiation et manipulation de la classe de recherche par courbe mais pas les courbes en elles-mêmes ni le détecteur).
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 */
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/*
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 * Lance une recherche par courbes.
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 * Est appelé dans le fichier :
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 * mosaic > fonction onMouseMove.
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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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    //On crée le canvas et on récupère le dictionnaire des courbes.
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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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 * Est appelé dans le fichier :
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 * mosaic > fonction loadParameters.
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*/
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Mosaic.prototype.getDictionary = function()
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{
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    var path = (this.config.mouseInteractions ? this.config.curveDictionaryMI : this.config.curveDictionaryKI);
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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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        //Chaque entrée comporte un objet de cette forme : (nom, tableau). Tableau est un array de strings, qui sont les codes décrivant la courbe. Chaque code est un alias de cette courbe.
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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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 * Est appelé dans le fichier :
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 * mosaic > fonction loadParameters.
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*/
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Mosaic.prototype.getLang = function(lang)
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{
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	//Si la langue choisie n'est pas disponible, on met l'anglais par défaut.
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	if(this.config.langs.indexOf(this.config.lang) == -1)
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	{
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		this.config.lang = "en";
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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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		_this.notificationStrings = data.notificationStrings;
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		_this.helpText = data.helpText;
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    });
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}
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/*
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 * Ecoute la position des pointeurs si les deux sont détectés afin de tracer des courbes de recherche.
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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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 * Est appelé dans les fichiers :
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 * mosaic > fonction onMouseUp.
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 * curvesDetector > fonction updateDists.
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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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		//Dans le cadre du mode d'interactions souris, on indique qu'on est en mouse down de facon à ne plus être en mouse move avant le prochain mouse up puis d'un mouse down.
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		this.isMouseDown = false;
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    }
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    this.searchCanvas = null;
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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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 * Est appelé dans les fichiers :
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 * mosaic > fonctions onMouseUp et manageControlEvents.
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 * curvesDetector > fonction updateDists.
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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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    //Si on est en mode filtrage.
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    if(this.currentMode == "FILTER")
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    {
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        //On indique pour chaque snapshot la recherche de filtrage.
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        for(var i = 0 ; i < this.config['imagesToShow'] ; i++)
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        {
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            this.currentSearchGesture[i] = type;
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        }
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        this.filterSearchedType = type;
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        //Si on a des annotations.
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        if(this.annotations.length > 0)
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        {
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            //On indique qu'on est en train de filtrer.
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            this.isMosaicFiltering = true;
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            //Va servir à compter le nombre d'occurence des marqueurs dans chaque video.
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            var gestureNumberByVideo = new Object();
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            var maxAnnotationNumber = 0;
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            //Pour chaque annotation.
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            for(var i = 0 ; i < this.annotations.length ; i++)
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            {
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                //On récupère l'annotation en cours.
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                var current = this.annotations[i];
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                //Si l'annotation correspond à la gesture recherchée.
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                if(current.annotationType.contents.title == type)
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                {
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                    //Si une video n'a pas été traitée, on met son nombre d'occurences à 0.
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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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                    //On incrémente le nombre d'occurences de la video.
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                    gestureNumberByVideo[current.source.url]++;
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                }
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            }
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            //Pour chaque snapshot, s'il son nombre d'occurences n'a pas été encore calculé (cas où il n'y a pas de résultats dans ces videos là, on met leur nombre d'occurences à 0.
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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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                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++)
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            {
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                //Opacité conventionelle.
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                var opacity;
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                if(maxAnnotationNumber > 0)
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                {
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                    opacity = gestureNumberByVideo[this.urls[i]] / maxAnnotationNumber;
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                }
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                else
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                {
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                    opacity = 0;
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                }
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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 = i;
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                //On applique les opacités aux snapshots.
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                $('#snapshotDiv-' + filterIndex).fadeTo(this.config['timeFilterFade'], opacity, function()
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                {
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                    //On indique lorsque c'est terminé que la mosaique a terminé de filtrer.
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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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                //Si l'opacité est nulle.
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                if(opacity == 0)
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                {
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                    //Le snapshot filtré actuel.
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                    var filteredSnapshot = $('#snapshotDiv-' + filterIndex);
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                    //S'il existe.
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                    if(filteredSnapshot.length > 0)
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                    {
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                        //On rajoute un hider de façon à ce qu'on ne puisse pas le sélectionner.
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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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   256
                        });
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   257
                    }
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                }
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            }
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            //On indique que la mosaique a été filtrée.
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            this.isMosaicFiltered = true;
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   263
        }
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   264
    }
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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].
52
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 * Est appelé dans les fichiers :
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 * pointers > fonction pointersTimelineSelection.
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 * search > fonction searchFilter.
44
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*/
52
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Mosaic.prototype.scaleIntervals = function(A, B, C, D, val)
44
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{
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    // return (D - C + A) * val + (C - A);
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	if(A == B)
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	{
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		return (D - C) / 2;
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	}
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	else
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	{
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		return (D - C) * (val - A) / (B - A) + C;
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   283
	}
44
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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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*/
52
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/*Mosaic.prototype.getIdxFromMetadata = function(metadata)
44
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{
52
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    var _this = this;
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   292
    
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    for(idx in this.urls)
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   294
    {
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   295
        if(this.urls[idx] == metadata)
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   296
        {
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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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   300
                {
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   301
                    return id;
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   302
                }
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   303
            }
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   304
        }
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   305
    }
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   307
    return -1;
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   308
}*/
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/*
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 * Enlève une recherche par filtre.
52
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   312
 * Est appelé : dans les fichiers :
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   313
 * pointers > fonctions checkIfPointerIsOnSearchNotification et removeSearchNotificationIfOnIt.
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   314
 * mosaic > fonction onMarkersReady.
44
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*/
52
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   316
Mosaic.prototype.removeFilter = function()
44
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   317
{
52
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    //Si on est en filtrage, on passe en mosaic et on retire la recherche.
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   319
    if(this.currentMode == "FILTER")
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diff changeset
   320
    {
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   321
        this.currentMode = "MOSAIC";
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   322
        
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   323
        var _this = this;
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   324
        
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   325
        this.isMosaicFiltered = false;
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   326
		this.isMosaicFiltering = true;
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   327
        this.filterSearchedType = '';
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diff changeset
   328
        
277c94533395 Front IDILL :
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   329
        for(var i = 0 ; i < this.config['imagesToShow'] ; i++)
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diff changeset
   330
        {
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diff changeset
   331
            this.currentSearchGesture[i] = '';
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diff changeset
   332
        }
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diff changeset
   333
        
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diff changeset
   334
        this.removeNotifications();
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diff changeset
   335
        $('.filterHiders').remove();
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diff changeset
   336
        $('.snapshotDivs').fadeTo(_this.config['timeFilterFade'], 1, function()
47
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   337
		{
52
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   338
			_this.isMosaicFiltering = false;
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diff changeset
   339
		});
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diff changeset
   340
    }
45
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diff changeset
   341
}
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diff changeset
   342
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diff changeset
   343
/*
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 * Parcours le dictionnaire pour trouver la première gesture à avoir un code identique à celui en entrée.
52
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   345
 * Est appelé dans le fichier :
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diff changeset
   346
 * mosaic > fonction onMouseUp.
45
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diff changeset
   347
*/
52
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   348
Mosaic.prototype.gestureWithSameCode = function(code)
45
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   349
{
52
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   350
    //Pour tout le dictionnaire.
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   351
    for(var i = 0 ; i < this.dictionary.length ; i++)
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   352
    {
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   353
        //Pour touts les codes de chaque gesture du dictionnaire.
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   354
        for(var j = 0 ; j < this.dictionary[i].codes.length ; j++)
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diff changeset
   355
        {
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diff changeset
   356
            //Si le code en entrée est une partie début d'un des codes.
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diff changeset
   357
            if(this.dictionary[i].codes[j] === code)
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diff changeset
   358
            {
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   359
                //On retourne le nom de la gesture.
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diff changeset
   360
                return this.dictionary[i].name;
277c94533395 Front IDILL :
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diff changeset
   361
            }
277c94533395 Front IDILL :
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diff changeset
   362
        }
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diff changeset
   363
    }
277c94533395 Front IDILL :
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diff changeset
   364
    
277c94533395 Front IDILL :
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diff changeset
   365
    return '';
44
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   366
}