//    Licensed Materials - Property of IBM
//
//    IBM Cognos Products: cogadmin
//
//    (C) Copyright IBM Corp. 2005, 2011
//
//    US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
//
//
dojo.provide("com.ibm.cognos.admin.chart.Base");

dojo.require("dojox.json.ref");
dojo.require("dojo.fx.easing");
dojo.require("dojox.gfx.fx");


(function(){
	dojo.declare("com.ibm.cognos.admin.chart.Base",null,{
		constructor : function (frag,args){
			this.frag = frag;
		},
		/*
		 * make the label a 'mod' times integer and always bigger than min.
		 * 
		 * @param min: the minimum value for ticks
		 * @param max: the max value of Series
		 * @param mod: the mod value for the ticks
		 */
		getMaxLabel: function(min,max,mod) {
			var mod = mod || 15;
			if (max <= min) return min;
			
			var delta = max % mod;
			if (delta == 0) {
				return max;
			} else {
				return max + mod - delta;
			}
		},
		highlightedColumn: function(shape /*dojo chart shape*/,reversed){
			var DEFAULT_SATURATION  = 100,	// %
				DEFAULT_LUMINOSITY1 = 75,	// %
				DEFAULT_LUMINOSITY2 = 50,	// %
				DURATION = 400,
				EASING = dojo.fx.easing.backOut,
		
				c = dojox.color,
				hl = function(color){
					var a = new c.Color(color),
						x = a.toHsl();
					if(x.s == 0){
						x.l = x.l < 50 ? 100 : 0;
					}else{
						x.s = DEFAULT_SATURATION;
						if(x.l < DEFAULT_LUMINOSITY2){
							x.l = DEFAULT_LUMINOSITY1;
						}else if(x.l > DEFAULT_LUMINOSITY1){
							x.l = DEFAULT_LUMINOSITY2;
						}else{
							x.l = x.l - DEFAULT_LUMINOSITY2 > DEFAULT_LUMINOSITY1 - x.l ?
								DEFAULT_LUMINOSITY2 : DEFAULT_LUMINOSITY1;
						}
					}
					return c.fromHsl(x);
				};
				
				var color = shape.getFill();
				if(!color || !(color instanceof dojo.Color)){
					return;
				}
				dojox.gfx.fx.animateFill({
					shape:    shape,
					duration: DURATION,
					easing:   EASING,
					color:    {start: color, end: hl(color)}
				}).play();
				dojox.gfx.fx.animateStroke({
					shape: shape,
					duration: DURATION,
					color: {end: "yellow"},
					width: {end: 2},
					join:  {values: ["miter", "bevel", "round"]}
				}).play();
		}
	});
})();