80 lines
2.4 KiB
JavaScript
80 lines
2.4 KiB
JavaScript
var reg = /^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/;
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/*RGB颜色转换为16进制*/
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String.prototype.colorHex = function(){
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var that = this;
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if(/^(rgb|RGB)/.test(that)){
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var aColor = that.replace(/(?:\(|\)|rgb|RGB)*/g,"").split(",");
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var strHex = "#";
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for(var i=0; i<aColor.length; i++){
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var hex = Number(aColor[i]).toString(16);
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if(hex === "0"){
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hex += hex;
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}
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strHex += hex;
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}
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if(strHex.length !== 7){
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strHex = that;
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}
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return strHex;
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}else if(reg.test(that)){
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var aNum = that.replace(/#/,"").split("");
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if(aNum.length === 6){
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return that;
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}else if(aNum.length === 3){
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var numHex = "#";
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for(var i=0; i<aNum.length; i+=1){
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numHex += (aNum[i]+aNum[i]);
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}
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return numHex;
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}
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}else{
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return that;
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}
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};
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//-------------------------------------------------
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/*16进制颜色转为RGB格式*/
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String.prototype.colorRgb = function(){
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var sColor = this.toLowerCase();
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if(sColor && reg.test(sColor)){
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if(sColor.length === 4){
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var sColorNew = "#";
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for(var i=1; i<4; i+=1){
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sColorNew += sColor.slice(i,i+1).concat(sColor.slice(i,i+1));
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}
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sColor = sColorNew;
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}
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//处理六位的颜色值
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var sColorChange = [];
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for(var i=1; i<7; i+=2){
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sColorChange.push(parseInt("0x"+sColor.slice(i,i+2)));
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}
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return "RGB(" + sColorChange.join(",") + ")";
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}else{
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return sColor;
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}
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};
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/*function (){
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var sColor = this.toLowerCase();
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if(sColor && reg.test(sColor)){
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if(sColor.length === 4){
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var sColorNew = "#";
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for(var i=1; i<4; i+=1){
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sColorNew += sColor.slice(i,i+1).concat(sColor.slice(i,i+1));
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}
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sColor = sColorNew;
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}
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//处理六位的颜色值
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var sColorChange = [];
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for(var i=1; i<7; i+=2){
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sColorChange.push(parseInt("0x"+sColor.slice(i,i+2)));
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}
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return "RGB(" + sColorChange.join(",") + ")";
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}else{
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return sColor;
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}
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}*/ |