基于sui卡尺组件-创新互联

calliphers.js

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define(function(){
    var callipers = {};

    var spaceWidth = 7; // 间隔
    var height = 50; // 默认高度

    var callipersHtml = "                 "+
                        "               "+
                        "                "+
                        "        
"+                         "     
                                   "+                         "  
                                       "+                         "
                                          "+                         "                               ";     // 获取数字长度     function getNumberLength(number){         var str = ""+number;         return str.length;     }     function createImage(container,width,height,minValue,maxValue){         var containerWidth = $(container).width();         var c=$(container).find("canvas")[0];         var ctx=c.getContext("2d");         var multiplyingPower=2;         c.width=width*multiplyingPower;         c.height=height*multiplyingPower;         ctx.strokeStyle="#36384d";         ctx.lineWidth=1*multiplyingPower;         // 绘制底部线条         ctx.beginPath();         ctx.moveTo(containerWidth/2*multiplyingPower,height*multiplyingPower);         ctx.lineTo(width*multiplyingPower-containerWidth/2*multiplyingPower,height*multiplyingPower);         ctx.stroke();         // 绘制         for(var i=minValue;i<=maxValue;i++){             var newIndex = spaceWidth*(i-minValue)+containerWidth/2;             ctx.moveTo(newIndex*multiplyingPower,50*multiplyingPower);             if(i==minValue){                 ctx.fillStyle="#959AB9";                 ctx.font="24px Arial ";                 ctx.fillText(i,(newIndex-3)*multiplyingPower,28*multiplyingPower);                 ctx.lineTo(newIndex*multiplyingPower,35*multiplyingPower);             }else if(i%10==0){// 绘制长线                 ctx.font="24px Arial";                 ctx.fillText(i,(newIndex-6*(getNumberLength(i)-1))*multiplyingPower,28*multiplyingPower);                 ctx.lineTo(newIndex*multiplyingPower,35*multiplyingPower);             }else{//绘制短线                 ctx.lineTo(newIndex*multiplyingPower,43*multiplyingPower);             }             ctx.stroke();         }         var p_w_picpathDataUrl = c.toDataURL();         $(container).find("canvas").remove(); // 删除canvas         return p_w_picpathDataUrl;     }     function resetSwiperTransition(swiper){         var translate = swiper.getWrapperTranslate();         var offset = translate%spaceWidth;         offset = offset*-1;         if(offset>spaceWidth/2){             translate = (parseInt(translate/spaceWidth)-1)*spaceWidth;         }else{             translate = (parseInt(translate/spaceWidth))*spaceWidth;         }         swiper.setWrapperTranslate(translate);         var offsetValue = translate/spaceWidth*-1;         return offsetValue;     }     function render(container,settings){         settings = settings||{};         var minValue = settings.min||0;         var maxValue = settings.max||200;         var progressCallback = settings.progressCallback||function(){};         var transitionEndCallback = settings.transitionEndCallback||function(){};         var initValue = settings.initValue||parseInt((maxValue-minValue)/2+minValue);         var containerWidth= $(container).width();         var width = spaceWidth*(maxValue-minValue)+containerWidth;         $(container).html(callipersHtml);         container.attr("data-min",minValue);         container.attr("data-max",maxValue);         var dataURL = createImage(container,width,height,minValue,maxValue);         $(container).find(".callipers-content").css({             "background-p_w_picpath":"url("+ dataURL+")",             "width":width+"px"         });         setTimeout(function(){             $(container).find(".swiper-container").swiper({                 runCallbacksOnInit:false,                 freeModeMomentumRatio:0.2,                 touchRatio:0.5,                 slidesPerView: "auto",                 resistanceRatio: 0,                 freeMode: true,                 onInit:function(swiper){                     var value = resetSwiperTransition(swiper)+minValue;                     var offset = (initValue-minValue)*spaceWidth*-1;                     swiper.setWrapperTranslate(offset);                     container.attr("data-value",initValue);                     swiper.updateProgress();                     container.addClass("initialized");                 },                 onTouchEnd:function(swiper){                     var value = resetSwiperTransition(swiper)+minValue;                     transitionEndCallback(value);                     container.attr("data-value",value);                 },                 onTransitionEnd:function(swiper){                     var value = resetSwiperTransition(swiper)+minValue;                     transitionEndCallback(value);                     container.attr("data-value",value);                 },                 onProgress:function(swiper,progress){                     var value = parseInt(swiper.getWrapperTranslate()/spaceWidth)*-1+minValue;                     progressCallback(value);                     container.attr("data-value",value);                 }             });         },100);         // init swiper     }     // 初始化 标尺     function init(settings){         var container = settings.container;         $(container).each(function(){             render($(this),settings);         });     }     callipers.init = init;     return callipers; });

calliphers.css

.callipers{position:relative;opacity:0;}
.callipers.initialized{
    opacity:1;
}
.callipers canvas{display:none;}
.callipers:before{
    content:"";
    position:absolute;
    left:0;
    bottom:0;
    right:0;
    width:1px;
    height:47px;
    background-color:#b540a8;
    margin:auto;
    z-index: 99;
}
.callipers .callipers-content{
    height:50px;
    background:no-repeat center center;
    background-size:contain;
}
.callipers .swiper-container{padding:0;}
.callipers .swiper-container .swiper-wrapper{height:auto;}
.callipers .swiper-container .swiper-slide{width:auto;height:auto;}

test.html


   
      
         
      
   

test.js

define(["callipers"], function(callipers) {
	$(document).on("pageInit", "#test", function(e, pageId, $page) {
		callipers.init({
			container:$page.find(".callipers"),
			min:20,
			max:220,
			initValue:90,
			progressCallback:function(value){
				console.log("value");
			},
			transitionEndCallback:function(value){
				console.log("value");
			}
		});

	});

	$.init();
});

基于sui 卡尺组件

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