bs_slider.class.js

征服AJAX+LUCENE构建搜索引擎的源码

				this['_colorbarObj'+k].style.left  = newWidth+"px";
			} else {
				this['_colorbarObj'+k].style.width = newWidth+"px";
			}
		}
		if (typeof(this['colorbar'+k]['color2']) != 'undefined') {
			var percent  = this.getValueInPercent(knobId);
			var newColor = mixColor(this['colorbar'+k]['color'], this['colorbar'+k]['color2'], percent);
			document.getElementById(this._colorbarId+k).style.backgroundColor = newColor;}
	}
}
this._getValueByPosition = function(pos) {
if (this.direction == 0) {
pos -= this.ctrl.minX;var hundertPercent = this.ctrl.maxX - this.ctrl.minX;} else {
pos -= this.ctrl.minY;var hundertPercent = this.ctrl.maxY - this.ctrl.minY;}
var myPercent      = pos / hundertPercent;
if (this.logCoord) {
	var val  = Math.exp((((Math.log(this.maxVal) - Math.log(this.minVal))*myPercent)+Math.log(this.minVal)));
} else {
	var val = this.minVal + ((this.maxVal - this.minVal) * myPercent);
}
return val;}

this._getPositionByValue = function(val, knobId) {
var k = ((typeof(knobId) == 'undefined') || (knobId == 1)) ? '' : '2';
var hundertPercent = this['maxVal'+k] - this['minVal'+k];
if (this.logCoord) {
	var myPercent = (Math.log(val)-Math.log(this['minVal'+k]))/(Math.log(this['maxVal'+k]) - Math.log(this['minVal'+k]));
} else {
	val = val - this['minVal'+k];
	var myPercent      = val / hundertPercent;
	
}
//alert(myPercent);
if (this.direction == 0) {
	var pos = this['ctrl'+k].minX + ((this['ctrl'+k].maxX - this['ctrl'+k].minX) * myPercent);
} else {
	var pos = this['ctrl'+k].minY + ((this['ctrl'+k].maxY - this['ctrl'+k].minY) * myPercent);
}
	
return pos;}
this._roundToGrid = function(val, knobId) {
	val = parseFloat(val);
	if (isNaN(val)) return this.minVal;
	val = Math.round(val / this.valueInterval) * this.valueInterval;
	val = Math.round(val*10000)/10000;
	if (val < this.minVal) val = this.minVal;
	if (val > this.maxVal) val = this.maxVal;
	if (this.useSecondKnob && this.preventValueCrossing) {
		if ((typeof(knobId) == 'undefined') || (knobId == 1)) {
			if (val >= this._valueInternal2) {
				val = this._valueInternal2 - this.valueInterval;if (val < this.minVal) val = this.minVal;
			}
		} else {
			if (val <= this._valueInternal) {
				val = this._valueInternal + this.valueInterval2;
				if (val > this.maxVal2) val = this.maxVal2;
			}
		}
	}
	return val;
}
this._getNewLocationFromCursor = function(ctrl) {
if (ctrl.knobId == 1) {
var ox = this._posEventSlideStartX;
var oy = this._posEventSlideStartY;
var posObjSlideStartX = this._posObjSlideStartX;
var posObjSlideStartY = this._posObjSlideStartY;} else {
var ox = this._posEventSlideStartX2;var oy = this._posEventSlideStartY2;var posObjSlideStartX = this._posObjSlideStartX2;var posObjSlideStartY = this._posObjSlideStartY2;}
switch (this.direction) {
case 0:

var t = ctrl.pageX - ox;var x = parseInt(posObjSlideStartX) + t;if (x > ctrl.maxX) x = ctrl.maxX;if (x < ctrl.minX) x = ctrl.minX;return x;case 1:
var t = ctrl.pageY - oy;var y = parseInt(posObjSlideStartY) + t;if (y > ctrl.maxY) y = ctrl.maxY;if (y < ctrl.minY) y = ctrl.minY;return y;}
}
this.updatePointer = function(newPos) {
this.updateHandle(newPos);}
this.updateHandle = function(newPos, knobId) {

	if ((typeof(knobId) == 'undefined') || (knobId == 1)) {
		if (this.direction == 0) {
			this._currentRelSliderPosX = newPos;
			this.ctrl.div.style.left   = newPos+"px";
		} else {
			this._currentRelSliderPosX = newPos;
			this.ctrl.div.style.top    = newPos+"px";}
	} else {
		if (this.direction == 0) {
			this._currentRelSliderPosX2 = newPos;
			this.ctrl2.div.style.left   = newPos+"px";
		} else {
		this._currentRelSliderPosX2 = newPos;
		this.ctrl2.div.style.top    = newPos+"px";
	}
}

return;
}
this.updateValueField = function(val, knobId) {
var k = ((typeof(knobId) == 'undefined') || (knobId == 1)) ? '' : '2';if (this['_valueFieldObj'+k]) {
this['_valueFieldObj'+k].value = val;}
}
this.updateValueText = function(val, knobId) {
var k = ((typeof(knobId) == 'undefined') || (knobId == 1)) ? '' : '2';if (this['_valueTextObj'+k]) {
this['_valueTextObj'+k].innerHTML = val;}
}
this.arrowOnClick = function() {
}
this.onChange = function(val) {
	if (this._disabled) return;
	this.setValue(val);
}
this.updateInputBox = function(val) {
if (this._disabled) return;this.setValue(val);}
this.textboxEdit = function(editMode, knobId) {
var k = ((typeof(knobId) == 'undefined') || (knobId == 1)) ? '' : '2';if (this._disabled) return;if (editMode) {
if ('undefined' != typeof(this['_valueFieldObj'+k])) {
this['_valueTextObj'+k].style.display = 'none';this['_valueFieldObj'+k].style.display = 'block';bsFormFieldSetFocusAndSelect(this['_valueFieldObj'+k], false);}
} else {
if ('undefined' != typeof(this['_valueTextObj'+k])) {
this['_valueFieldObj'+k].style.display = 'none';this['_valueTextObj'+k].style.display  = 'block';}
}
}
this.slideMove = function(ctrl, client) {
ctrl.sliderObj.onChangeBySlide(ctrl);}
this.slideStart = function(ctrl, client) {
	
	this.currentKnob=ctrl.knobId;
	if (ctrl.knobId == 1) {
		ctrl.sliderObj._handleObj.style.zIndex += 2;
		ctrl.sliderObj._posEventSlideStartX = ctrl.startX;
		ctrl.sliderObj._posEventSlideStartY = ctrl.startY;
		ctrl.sliderObj._posObjSlideStartX   = ctrl.sliderObj._handleObj.style.left;
		ctrl.sliderObj._posObjSlideStartY   = ctrl.sliderObj._handleObj.style.top;
	} else {
		ctrl.sliderObj._handleObj2.style.zIndex += 2;
		ctrl.sliderObj._posEventSlideStartX2 = ctrl.startX;
		ctrl.sliderObj._posEventSlideStartY2 = ctrl.startY;
		ctrl.sliderObj._posObjSlideStartX2   = ctrl.sliderObj._handleObj2.style.left;
		ctrl.sliderObj._posObjSlideStartY2   = ctrl.sliderObj._handleObj2.style.top;
	}
//	var val = ctrl.sliderObj.getValue(ctrl.knobId);
//	val=ctrl.sliderObj._roundToGrid(val, ctrl.knobId);
	
	var pos = ctrl.sliderObj.getSliderPos(ctrl.knobId);
	ctrl.sliderObj.setValue(pos, ctrl.knobId);
	if ('undefined' != typeof(ctrl.sliderObj.slideStartCB)) {
		ctrl.sliderObj.slideStartCB(ctrl.sliderObj, ctrl.sliderObj.getValue(), pos);
	}
}
this.slideEnd = function(ctrl, client){
	
	if (this._disabled) return;
	
	if (ctrl.knobId == 1) {
		ctrl.sliderObj._handleObj.style.zIndex -= 2;
	} else {

		ctrl.sliderObj._handleObj2.style.zIndex -= 2;
	}
	var pos=ctrl.sliderObj.getSliderPos(ctrl.knobId);
	
	if ('undefined' != typeof(ctrl.sliderObj.slideEndCB)) {
		ctrl.sliderObj.slideEndCB(ctrl.sliderObj, ctrl.sliderObj.getValue(), pos);
	}
	if ('undefined' != typeof(ctrl.sliderObj.eventOnChange)) ctrl.sliderObj.eventOnChange(ctrl.sliderObj, ctrl.sliderObj.getValue(ctrl.knobId), pos);
return;}
this._constructor(theFieldnamePrefix);}