/**
 * Project   : AMDA-NG
 * Name      : PlotPreviewUI.js
 * @class    amdaPlotComp.PlotPreviewUI
 * @extends  Ext. panel.Panel
 * @brief    Plot Preview UI definition (View)
 * @author    
 * @version  $Id: PlotPreviewUI.js benjamin $
 ********************************************************************************
 *    FT Id     :   Date   : Name - Description
 *******************************************************************************
 *              
 */

Ext.define('amdaPlotComp.PlotPreviewUI', {
    extend: 'Ext.panel.Panel',
 
    alias: 'widget.plotPreview',

    requires: [
        'amdaPlotComp.PlotContextManager'
    ],
    
    panelImage : null,
    crtContext : null,
    sliderPage : null,

    constructor: function(config) {
        this.init(config);	 
        this.callParent(arguments);	 
    },  
    
    getImageSize : function() {
    	if (!this.crtContext)
    		return {
    			width : 0,
    			height : 0
    		};
    		
    	return  {
    			width  : this.crtContext.page.width * this.sliderPage.getValue()/100.,
    			height : this.crtContext.page.height * this.sliderPage.getValue()/100.
	    } 
    },
    
    getImageUrl: function(resultFolder, plotFile) {
    	return 'data/'+sessionID +'/RES/'+resultFolder+ '/' + plotFile;
    },
	
    createPlotImage: function(resultFolder, plotFile) {
    	var me = this;
    	var size = this.getImageSize();
    	this.panelImage = Ext.create('amdaPlotComp.PlotResultImage', {
            src    : this.getImageUrl(resultFolder, plotFile),
            width  : size.width,
            height : size.height
        });

        return this.panelImage;
    },
    
    updatePlotImage: function(configResult, newPlot) {
    	this.crtContext = configResult.context;

    	this.panelImage.setSrc(this.getImageUrl(configResult.folder, configResult.plotFile));
    	
    	var size = this.getImageSize();
    	this.panelImage.setSize(size.width, size.height);
    	
    	this.panelImage.refreshMe();
    },
    
    init: function(configResult){
    	this.crtContext = configResult.context;
    	this.tabId = configResult.tabId;
    	
    	this.sliderPage = new Ext.slider.Single({
            width: 130,
            value: 75,
            increment: 5,
            minValue: 50,
            maxValue: 100,
            fieldLabel : 'Resize',
            labelWidth : 40,
            listeners: {
        		scope : this,
                changecomplete: function(s, v)
                {
        			var size = this.getImageSize();	 
        			this.panelImage.width  = size.width;
        			this.panelImage.height = size.height;
        			this.panelImage.doComponentLayout();
                }
            }
        });
    	
    	var bottomToolbar = {
    		xtype: 'toolbar',
    		height: 25,
            dock: 'bottom',
            items:[
                   '->',
                   this.sliderPage
            ]
    	};
            
    	var plotPreviewPanelConfig = {
    			preventHeader : true,
                autoScroll: true,       
                items: [
                        this.createPlotImage(configResult.folder, configResult.plotFile)
                ],
                dockedItems: [bottomToolbar]
    	};
            
    	Ext.apply(this , plotPreviewPanelConfig);	
    }
});