可以实现元素圆角的函数~
June/1st 2006
上次在blueidea上看到一个元素圆角的实现方法，但是那个太复杂了。于是就自己写了一个函数，可以将元素自动圆角。
演示地址：http://longbill.cn/down/sample/roundcorner.htm
不要用在有 padding 值得元素上，最好是在外面套一层。详情见演示地址。
代码：
2909 read 4 comment(s)
演示地址：http://longbill.cn/down/sample/roundcorner.htm
不要用在有 padding 值得元素上，最好是在外面套一层。详情见演示地址。
代码：
function RoundCorner(obj,style)
{
/********
网页元素圆角函数!!
作者: Longbill
主页: www.longbill.cn
********/
var r = [];
var styles = [
{top:["0 5px","0 3px","0 2px","0 1px","0 1px"],bottom:["0 1px","0 1px","0 2px","0 3px","0 5px"]},
{top:["0 5px","0 3px","0 2px","0 1px","0 1px"],bottom:["0px","0px","0px","0px","0px"] },
{top:["0 0 0 5px","0 0 0 3px","0 0 0 2px","0 0 0 1px","0 0 0 1px"],bottom:["0 1 0 0px","0 1 0 0px","0 2 0 0px","0 3 0 0px","0 5 0 0px"]},
{top:["0 5 0 0px","0 3 0 0px","0 2 0 0px","0 1 0 0px","0 1 0 0px"],bottom:["0 0 0 1px","0 0 0 1px","0 0 0 2px","0 0 0 3px","0 0 0 5px"]}
]; //author: longbill.cn
if (!style || style>styles.length) style = 1;
style--;
var btop = styles[style].top,bbottom = styles[style].bottom;
obj = document.getElementById(obj);
if (!obj) return;
var HTML = obj.innerHTML;
obj.innerHTML = "";
for(var istop=1;istop>=0;istop--)
{
var topborder = document.createElement("b");
topborder.style.display = "block";
topborder.style.height = "2px";
topborder.style.backgroundColor = (obj.parentNode.style.backgroundColor)?obj.parentNode.style.backgroundColor:"#FFFFFF";
for(var i=0;i<btop.length;i++)
{
var b = document.createElement("b");
if (obj.style.backgroundColor)
b.style.backgroundColor = obj.style.backgroundColor;
else if (obj.className)
b.className = obj.className;
b.style.display = "block";
b.style.margin = (istop)?btop[i]:bbottom[i];
b.style.height = "1px";
b.style.overflow = "hidden";
b.style.width = "auto";
topborder.appendChild(b);
}
obj.appendChild(topborder);
if (istop) obj.innerHTML+=HTML;
}
}
{
/********
网页元素圆角函数!!
作者: Longbill
主页: www.longbill.cn
********/
var r = [];
var styles = [
{top:["0 5px","0 3px","0 2px","0 1px","0 1px"],bottom:["0 1px","0 1px","0 2px","0 3px","0 5px"]},
{top:["0 5px","0 3px","0 2px","0 1px","0 1px"],bottom:["0px","0px","0px","0px","0px"] },
{top:["0 0 0 5px","0 0 0 3px","0 0 0 2px","0 0 0 1px","0 0 0 1px"],bottom:["0 1 0 0px","0 1 0 0px","0 2 0 0px","0 3 0 0px","0 5 0 0px"]},
{top:["0 5 0 0px","0 3 0 0px","0 2 0 0px","0 1 0 0px","0 1 0 0px"],bottom:["0 0 0 1px","0 0 0 1px","0 0 0 2px","0 0 0 3px","0 0 0 5px"]}
]; //author: longbill.cn
if (!style || style>styles.length) style = 1;
style--;
var btop = styles[style].top,bbottom = styles[style].bottom;
obj = document.getElementById(obj);
if (!obj) return;
var HTML = obj.innerHTML;
obj.innerHTML = "";
for(var istop=1;istop>=0;istop--)
{
var topborder = document.createElement("b");
topborder.style.display = "block";
topborder.style.height = "2px";
topborder.style.backgroundColor = (obj.parentNode.style.backgroundColor)?obj.parentNode.style.backgroundColor:"#FFFFFF";
for(var i=0;i<btop.length;i++)
{
var b = document.createElement("b");
if (obj.style.backgroundColor)
b.style.backgroundColor = obj.style.backgroundColor;
else if (obj.className)
b.className = obj.className;
b.style.display = "block";
b.style.margin = (istop)?btop[i]:bbottom[i];
b.style.height = "1px";
b.style.overflow = "hidden";
b.style.width = "auto";
topborder.appendChild(b);
}
obj.appendChild(topborder);
if (istop) obj.innerHTML+=HTML;
}
}
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内容:
稍稍更改了下，紧凑了些，也便于自己的理解：
function RoundCorner(oContain,idxStyle)
{
/********
网页元素圆角函数
作者: Longbill
主页: www.longbill.cn
修改: Seagle
********/
var r = [];
var oStyleLst = [
{top:["0 5px","0 3px","0 2px","0 1px","0 1px"],bottom:["0 1px","0 1px","0 2px","0 3px","0 5px"]},
{top:["0 5px","0 3px","0 2px","0 1px","0 1px"],bottom:["0px","0px","0px","0px","0px"]},
{top:["0 0 0 5px","0 0 0 3px","0 0 0 2px","0 0 0 1px","0 0 0 1px"],bottom:["0 1 0 0px","0 1 0 0px","0 2 0 0px","0 3 0 0px","0 5 0 0px"]},
{top:["0 5 0 0px","0 3 0 0px","0 2 0 0px","0 1 0 0px","0 1 0 0px"],bottom:["0 0 0 1px","0 0 0 1px","0 0 0 2px","0 0 0 3px","0 0 0 5px"]}
]; //author: longbill.cn
if (!idxStyle || idxStyle>oStyleLst.length) idxStyle = 1;
idxStyle--;
oContain = document.getElementById(oContain);
if (!oContain) return;
for (var key in oStyleLst[idxStyle])
{
var topborder = document.createElement("div");
topborder.style.display = "block";
topborder.style.backgroundColor = (oContain.parentNode.style.backgroundColor)?oContain.parentNode.style.backgroundColor:"#FFFFFF";
for (var i=0; i<oStyleLst[idxStyle][key].length; i++)
{
var b = document.createElement("div");
if (oContain.style.backgroundColor)
b.style.backgroundColor = oContain.style.backgroundColor;
else if (oContain.className)
b.className = oContain.className;
b.style.display = "block";
b.style.margin = oStyleLst[idxStyle][key][i];
b.style.height = "1px";
b.style.overflow = "hidden";
b.style.width = "auto";
topborder.appendChild(b);
}
oNode = (key == 'top')?oContain.firstChild:null;
oContain.insertBefore(topborder, oNode);
}
}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">