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JS实现的系统调色板完整实例

2019-11-19 18:21:52
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本文实例讲述了JS实现的系统调色板。分享给大家供大家参考,具体如下:

运行效果图如下:

整体页面代码:

<html><head>  <meta http-equiv="Content-Type" content="text/html; charset=gb2312">  <title>DW调色板</title><script type="text/javascript" language="javascript">var ColorHex=new Array('00','33','66','99','CC','FF')var SpColorHex=new Array('FF0000','00FF00','0000FF','FFFF00','00FFFF','FF00FF')var current=nullfunction getEvent(){  if(document.all)  {  return window.event;//如果是ie  }  func=getEvent.caller;  while(func!=null)  {    var arg0=func.arguments[0];    if(arg0)    {      if((arg0.constructor==Event || arg0.constructor ==MouseEvent)||(typeof(arg0)=="object" && arg0.preventDefault && arg0.stopPropagation))      {      return arg0;      }    }    func=func.caller;  }  return null;}function intocolor(){  var colorTable=''  for (i=0;i<2;i++)  //循环2部分  {    for (j=0;j<6;j++) //循环6行    {      colorTable=colorTable+'<tr height=12>'      for (k=0;k<3;k++)      {        for (l=0;l<6;l++)        {          colorTable=colorTable+'<td width=11 style="background-color:#'+ColorHex[k+i*3]+ColorHex[l]+ColorHex[j]+'">'        }      }    }  }  colorTable='<table width=217 border="0" cellspacing="0" cellpadding="0" style="border:1px #000000 solid;border-bottom:none;border-collapse: collapse" bordercolor="000000">'      +'<tr height=30><td colspan=21 bgcolor=#cccccc>'      +'<table cellpadding="0" cellspacing="1" border="0" style="border-collapse: collapse">'      +'<tr><td width="3"><td>当前色:</td><td><input type="text" name="DisColor" id="DisColor" size="6" disabled style="border:solid 1px #000000;background-color:#FFFFFF"></td>'      +'<td width="3"><td><input type="text" name="HexColor" id="HexColor" size="7" style="border:inset 1px;font-family:Arial;" value="#FFFFFF"></td></tr></table></td></table>'      +'<table border="1" cellspacing="0" cellpadding="0" style="border-collapse: collapse" bordercolor="000000" style="cursor:hand;">'      +colorTable+'</table>';  colorpanel.innerHTML=colorTable}function doOver() {  var evt=getEvent();  var element=evt.srcElement || evt.target;  var DisColor=document.getElementById("DisColor");  var HexColor=document.getElementById("HexColor");  if ((element.tagName=="TD") && (current!=element)) {    if (current!=null){      current.style.backgroundColor = current._background    }    element._background = element.style.backgroundColor    DisColor.style.backgroundColor = rgbToHex(element.style.backgroundColor)    HexColor.value = rgbToHex(element.style.backgroundColor)    element.style.backgroundColor = "white"    current = element  }}function rgbToHex(aa){  if(aa.indexOf("rgb") != -1)  {    aa=aa.replace("rgb(","")    aa=aa.replace(")","")    aa=aa.split(",")    r=parseInt(aa[0]);    g=parseInt(aa[1]);    b=parseInt(aa[2]);    r = r.toString(16);    if (r.length == 1) { r = '0' + r; }    g = g.toString(16);    if (g.length == 1) { g = '0' + g; }    b = b.toString(16);    if (b.length == 1) { b = '0' + b; }    return ("#" + r + g + b).toUpperCase();  }  else  {    return aa;  }}function doOut() {  if (current!=null) current.style.backgroundColor = current._background;}function doclick(){  var evt=getEvent();  var element=evt.srcElement || evt.target;  if (element.tagName=="TD"){    var bg=rgbToHex(element._background);    document.getElementById("orange").value=bg;    alert("选取颜色: "+bg);    return bg;  }}</script></head><body onload="intocolor()">  <div id="colorpanel">  </div>  <table width=217 border="1" cellspacing="0" cellpadding="0" style="border:1px #000000 solid;border-bottom:none;border-collapse: collapse" bordercolor="000000">  <tr height=30>    <td colspan=21 bgcolor=#cccccc>      <table cellpadding="0" cellspacing="1" border="0" style="border-collapse: collapse">        <tr>          <td>所选色:</td>          <td><input id="orange" type="text" value="" size="20" /></td>        </tr>      </table>    </td>  </tr>  </table></body></html>

PS:这里再为大家推荐几款本站的相关在线工具:

在线RGB、HEX颜色代码生成器:
http://tools.VeVB.COm/color/rgb_color_generator

RGB颜色查询对照表_颜色代码表_颜色的英文名称大全:
http://tools.VeVB.COm/color/jPicker

在线网页调色板工具:
http://tools.VeVB.COm/color/color_picker

在线颜色选择器工具/RGB颜色查询对照表:
http://tools.VeVB.COm/color/colorpicker

更多关于JavaScript相关内容可查看本站专题:《JavaScript切换特效与技巧总结》、《JavaScript查找算法技巧总结》、《JavaScript动画特效与技巧汇总》、《JavaScript错误与调试技巧总结》、《JavaScript数据结构与算法技巧总结》、《JavaScript遍历算法与技巧总结》及《JavaScript数学运算用法总结

希望本文所述对大家JavaScript程序设计有所帮助。

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