/*
* jQuery Easing v1.3 - http://gsgd.co.uk/sandbox/jquery/easing/
*
* Uses the built in easing capabilities added In jQuery 1.1
* to offer multiple easing options
*
* TERMS OF USE - jQuery Easing
* 
* Open source under the BSD License. 
* 
* Copyright © 2008 George McGinley Smith
* All rights reserved.
* 
* Redistribution and use in source and binary forms, with or without modification, 
* are permitted provided that the following conditions are met:
* 
* Redistributions of source code must retain the above copyright notice, this list of 
* conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this list 
* of conditions and the following disclaimer in the documentation and/or other materials 
* provided with the distribution.
* 
* Neither the name of the author nor the names of contributors may be used to endorse 
* or promote products derived from this software without specific prior written permission.
* 
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
*  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
*  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
*  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
*  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 
* OF THE POSSIBILITY OF SUCH DAMAGE. 
*
*/

// t: current time, b: begInnIng value, c: change In value, d: duration
jQuery.easing['jswing'] = jQuery.easing['swing'];

jQuery.extend(jQuery.easing,
{
	def: 'easeOutQuad',
	swing: function(x, t, b, c, d) {
		//alert(jQuery.easing.default);
		return jQuery.easing[jQuery.easing.def](x, t, b, c, d);
	},
	easeInQuad: function(x, t, b, c, d) {
		return c * (t /= d) * t + b;
	},
	easeOutQuad: function(x, t, b, c, d) {
		return -c * (t /= d) * (t - 2) + b;
	},
	easeInOutQuad: function(x, t, b, c, d) {
		if ((t /= d / 2) < 1) return c / 2 * t * t + b;
		return -c / 2 * ((--t) * (t - 2) - 1) + b;
	},
	easeInCubic: function(x, t, b, c, d) {
		return c * (t /= d) * t * t + b;
	},
	easeOutCubic: function(x, t, b, c, d) {
		return c * ((t = t / d - 1) * t * t + 1) + b;
	},
	easeInOutCubic: function(x, t, b, c, d) {
		if ((t /= d / 2) < 1) return c / 2 * t * t * t + b;
		return c / 2 * ((t -= 2) * t * t + 2) + b;
	},
	easeInQuart: function(x, t, b, c, d) {
		return c * (t /= d) * t * t * t + b;
	},
	easeOutQuart: function(x, t, b, c, d) {
		return -c * ((t = t / d - 1) * t * t * t - 1) + b;
	},
	easeInOutQuart: function(x, t, b, c, d) {
		if ((t /= d / 2) < 1) return c / 2 * t * t * t * t + b;
		return -c / 2 * ((t -= 2) * t * t * t - 2) + b;
	},
	easeInQuint: function(x, t, b, c, d) {
		return c * (t /= d) * t * t * t * t + b;
	},
	easeOutQuint: function(x, t, b, c, d) {
		return c * ((t = t / d - 1) * t * t * t * t + 1) + b;
	},
	easeInOutQuint: function(x, t, b, c, d) {
		if ((t /= d / 2) < 1) return c / 2 * t * t * t * t * t + b;
		return c / 2 * ((t -= 2) * t * t * t * t + 2) + b;
	},
	easeInSine: function(x, t, b, c, d) {
		return -c * Math.cos(t / d * (Math.PI / 2)) + c + b;
	},
	easeOutSine: function(x, t, b, c, d) {
		return c * Math.sin(t / d * (Math.PI / 2)) + b;
	},
	easeInOutSine: function(x, t, b, c, d) {
		return -c / 2 * (Math.cos(Math.PI * t / d) - 1) + b;
	},
	easeInExpo: function(x, t, b, c, d) {
		return (t == 0) ? b : c * Math.pow(2, 10 * (t / d - 1)) + b;
	},
	easeOutExpo: function(x, t, b, c, d) {
		return (t == d) ? b + c : c * (-Math.pow(2, -10 * t / d) + 1) + b;
	},
	easeInOutExpo: function(x, t, b, c, d) {
		if (t == 0) return b;
		if (t == d) return b + c;
		if ((t /= d / 2) < 1) return c / 2 * Math.pow(2, 10 * (t - 1)) + b;
		return c / 2 * (-Math.pow(2, -10 * --t) + 2) + b;
	},
	easeInCirc: function(x, t, b, c, d) {
		return -c * (Math.sqrt(1 - (t /= d) * t) - 1) + b;
	},
	easeOutCirc: function(x, t, b, c, d) {
		return c * Math.sqrt(1 - (t = t / d - 1) * t) + b;
	},
	easeInOutCirc: function(x, t, b, c, d) {
		if ((t /= d / 2) < 1) return -c / 2 * (Math.sqrt(1 - t * t) - 1) + b;
		return c / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1) + b;
	},
	easeInElastic: function(x, t, b, c, d) {
		var s = 1.70158; var p = 0; var a = c;
		if (t == 0) return b; if ((t /= d) == 1) return b + c; if (!p) p = d * .3;
		if (a < Math.abs(c)) { a = c; var s = p / 4; }
		else var s = p / (2 * Math.PI) * Math.asin(c / a);
		return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p)) + b;
	},
	easeOutElastic: function(x, t, b, c, d) {
		var s = 1.70158; var p = 0; var a = c;
		if (t == 0) return b; if ((t /= d) == 1) return b + c; if (!p) p = d * .3;
		if (a < Math.abs(c)) { a = c; var s = p / 4; }
		else var s = p / (2 * Math.PI) * Math.asin(c / a);
		return a * Math.pow(2, -10 * t) * Math.sin((t * d - s) * (2 * Math.PI) / p) + c + b;
	},
	easeInOutElastic: function(x, t, b, c, d) {
		var s = 1.70158; var p = 0; var a = c;
		if (t == 0) return b; if ((t /= d / 2) == 2) return b + c; if (!p) p = d * (.3 * 1.5);
		if (a < Math.abs(c)) { a = c; var s = p / 4; }
		else var s = p / (2 * Math.PI) * Math.asin(c / a);
		if (t < 1) return -.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p)) + b;
		return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p) * .5 + c + b;
	},
	easeInBack: function(x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158;
		return c * (t /= d) * t * ((s + 1) * t - s) + b;
	},
	easeOutBack: function(x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158;
		return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b;
	},
	easeInOutBack: function(x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158;
		if ((t /= d / 2) < 1) return c / 2 * (t * t * (((s *= (1.525)) + 1) * t - s)) + b;
		return c / 2 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2) + b;
	},
	easeInBounce: function(x, t, b, c, d) {
		return c - jQuery.easing.easeOutBounce(x, d - t, 0, c, d) + b;
	},
	easeOutBounce: function(x, t, b, c, d) {
		if ((t /= d) < (1 / 2.75)) {
			return c * (7.5625 * t * t) + b;
		} else if (t < (2 / 2.75)) {
			return c * (7.5625 * (t -= (1.5 / 2.75)) * t + .75) + b;
		} else if (t < (2.5 / 2.75)) {
			return c * (7.5625 * (t -= (2.25 / 2.75)) * t + .9375) + b;
		} else {
			return c * (7.5625 * (t -= (2.625 / 2.75)) * t + .984375) + b;
		}
	},
	easeInOutBounce: function(x, t, b, c, d) {
		if (t < d / 2) return jQuery.easing.easeInBounce(x, t * 2, 0, c, d) * .5 + b;
		return jQuery.easing.easeOutBounce(x, t * 2 - d, 0, c, d) * .5 + c * .5 + b;
	}
});

/*
*
* TERMS OF USE - EASING EQUATIONS
* 
* Open source under the BSD License. 
* 
* Copyright © 2001 Robert Penner
* All rights reserved.
* 
* Redistribution and use in source and binary forms, with or without modification, 
* are permitted provided that the following conditions are met:
* 
* Redistributions of source code must retain the above copyright notice, this list of 
* conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this list 
* of conditions and the following disclaimer in the documentation and/or other materials 
* provided with the distribution.
* 
* Neither the name of the author nor the names of contributors may be used to endorse 
* or promote products derived from this software without specific prior written permission.
* 
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
*  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
*  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
*  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
*  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 
* OF THE POSSIBILITY OF SUCH DAMAGE. 
*
*/



jQuery.fn.extend({
	carrossel: function(parans) {
		/*--------------------------------------------------------------------
		* - VARS
		*--------------------------------------------------------------------
		* - Description
		-------------------------------------------------------------------*/
		this.childLength = 0;
		this._delay;
		this._time;
		this.index = 0;
		this.indexAnt = -1;
		this.indexAtu = 0;
		this.isPaused = false;
		this.isStopped = false;
		this.isRunning = false;
		this.width = 0;

		for (attr in parans)
			this[attr] = parans[attr];

		this.easing = this.easing == undefined ? 'easeOutQuad' : this.easing;

		/*--------------------------------------------------------------------
		* - FUNCTION ON ERROR
		*--------------------------------------------------------------------
		* - Description
		-------------------------------------------------------------------*/
		this.onError = function(msg) {
			try {
				$('.debug').append(msg + "<br />");
			}
			catch (e) {

			}
		}

		/*--------------------------------------------------------------------
		* - FUNCTION GO TO SLIDE
		*--------------------------------------------------------------------
		* - Description
		-------------------------------------------------------------------*/
		this.goToSlide = function() {
			if (arguments[1] == undefined)
				if (this.onChanged != undefined)
				this.onChanged(arguments[0]);

			if (arguments[0] > (this.childLength - 1))
				this.onError('<strong>Erro</strong>: O valor informado &eacute; maior que a quantidade de itens.');

			this.index = arguments[0] > (this.childLength - 1) ? 0 : arguments[0];
			//$(this).animate({ left: -(this.index * this.width) }, this.time * 1000);
			$(this).animate({ left: -(this.index * this.width) }, { duration: this.time * 1000, easing: this.easing })
		}

		/*--------------------------------------------------------------------
		* - FUNCTION NEXT SLIDE
		*--------------------------------------------------------------------
		* - Description
		-------------------------------------------------------------------*/
		this.nextSlide = function() {
			if (this.index >= (this.childLength - 1))
				if (this.loop) this.goToSlide(0, 'next');
			else this.stop();
			else this.goToSlide(this.index + 1, 'next');
			if (this.onChanged != undefined) this.onChanged(this.index);
		}

		/*--------------------------------------------------------------------
		* - FUNCTION PREVIOUS SLIDE
		*--------------------------------------------------------------------
		* - Description
		-------------------------------------------------------------------*/
		this.prevSlide = function() {
			if (this.index <= 0)
				if (this.loop) this.goToSlide(this.childLength - 1, 'prev')
			else this.stop();
			else this.goToSlide(this.index - 1, 'prev');
			if (this.onChanged != undefined) this.onChanged(this.index);
		}

		/*--------------------------------------------------------------------
		* - FUNCTION PLAY/PAUSE
		*--------------------------------------------------------------------
		* - Description
		-------------------------------------------------------------------*/
		this.pause = function() {
			if (this.isPaused) {
				this.isPaused = false;
				this.animate(this);
			}
			else {
				this.isPaused = true;
				clearInterval(this._delay);
				clearInterval(this._time);
			}

			if (this.onPaused != undefined) this.onPaused(this.isPaused);
		}

		/*--------------------------------------------------------------------
		* - FUNCTION STOP
		*--------------------------------------------------------------------
		* - Description
		-------------------------------------------------------------------*/
		this.stop = function() {
			clearInterval(this._time);
			clearInterval(this._delay);
			this.isStopped = true;
			this.isRunning = false;
			this.goToSlide(0);

			if (this.onStopped != undefined) this.onStopped();
		}

		/*--------------------------------------------------------------------
		* - FUNCTION ANIMATE
		*--------------------------------------------------------------------
		* - Description
		-------------------------------------------------------------------*/
		this.animate = function(p) {
			try {
				if (!p.isStopped) {
					p._delay = setInterval(function() {
						clearInterval(p._delay);
						if (!p.isPaused) {
							if (p.direction == 'left') p.nextSlide();
							else p.prevSlide();
							p.animate(p);
						}

					}, p.delay * 1000, p);
				}
			}
			catch (e) {

			}
		}

		/*--------------------------------------------------------------------
		* - FUNCTION START
		*--------------------------------------------------------------------
		* - Description
		-------------------------------------------------------------------*/
		this.start = function(p) {
			//p.animate(p);
			//if(this.onStarted != undefined) this.onStarted();

			if (!this.isRunning) {
				clearInterval(this._delay);
				clearInterval(this._time);

				this.isPaused = false;
				this.isRunning = true;
				this.isStopped = false;

				this.index = -1;
				this.animate(p);

				//parans default
				this.direction = this.direction == undefined ? 'left' : this.direction;
				this.time = this.time == undefined ? 0.5 : this.time;
				this.delay = this.delay == undefined ? 1 : this.delay;
				this.loop = this.loop == undefined ? true : this.loop;

				if (this.onStarted != undefined)
					this.onStarted();

				if (!this.autoStart) {
					this.stop();
					this.isRunning = true;
				}
			}
			else {
				this.autoStart = true;
				this.isRunning = false;
				this.isPaused = false;
				this.start(this);
			}
		}

		/*--------------------------------------------------------------------
		* - FUNCTION CONTROLS
		*--------------------------------------------------------------------
		* - Description
		-------------------------------------------------------------------*/
		this._controls = function(p) {
			try {
				$(p.controls.stop).each(function() {
					$(this).click(function(e) {
						e.preventDefault();
						p.stop();
					});
				});

				$(p.controls.start).each(function() {
					$(this).click(function(e) {
						e.preventDefault();
						p.start(p);
					});
				});

				$(p.controls.pause).each(function() {
					$(this).click(function(e) {
						e.preventDefault();
						p.pause(p);
					});
				});

				$(p.controls.prev).each(function() {
					$(this).click(function(e) {
						e.preventDefault();
						p.prevSlide(p);
					});
				});

				$(p.controls.next).each(function() {
					$(this).click(function(e) {
						e.preventDefault();
						p.nextSlide(p);
					});
				});
			}
			catch (e) {
				p.onError(e);
			}
		}

		/*--------------------------------------------------------------------
		* - FUNCTION INIT
		*--------------------------------------------------------------------
		* - Description
		-------------------------------------------------------------------*/
		this.init = function(p) {
			try {
				$(this).each(function() {
					p.width = $(this).find('>:first').width();
					p.childLength = $(this).find('> *').length;
					$(this).css('width', (p.width * p.childLength));
				});
				p._controls(p);
				p.start(p);
			}
			catch (e) {
				p.onError(e);
			}
		}

		this.init(this);

		return this.controls;
	}
});
