<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2311">
<title>顏色對話框</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=null
var rgb
function hex2rgb(a) //將16進制顏色轉換成rgb
{
a=a.substring(1);
a=a.toLowerCase();
b=new Array();
for(x=0;x<3;x++){
b[0]=a.substr(x*2,2);
b[3]="0123456789abcdef";
b[1]=b[0].substr(0,1);
b[2]=b[0].substr(1,1);
b[20+x]=b[3].indexOf(b[1])*16+b[3].indexOf(b[2]);
}
//return "rgb(" +b[20]+","+b[21]+","+b[22]+ ")";
return b[20]+","+b[21]+","+b[22];
}
function intocolor()
{
var colorTable=''
for (i=0;i<2;i++)
{
for (j=0;j<6;j++)
{
colorTable=colorTable+'<tr height=12>'
colorTable=colorTable+'<td width=11 style="background-color:#000000">'
if (i==0){
colorTable=colorTable+'<td width=11 style="background-color:#'+ColorHex[j]+ColorHex[j]+ColorHex[j]+'">'}
else{
colorTable=colorTable+'<td width=11 style="background-color:#'+SpColorHex[j]+'">'}
colorTable=colorTable+'<td width=11 style="background-color:#000000">'
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=253 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><input type="text" name="DisColor" size="6" disabled style="border:solid 1px #000000;background-color:#ffff00"></td>'
+'<td width="3"><td><input type="text" name="HexColor" size="7" style="border:inset 1px;font-family:Arial;" value="#000000"></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
}
//將顏色值字母大寫
function doOver() {
if ((event.srcElement.tagName=="TD") && (current!=event.srcElement)) {
if (current!=null){current.style.backgroundColor = current._background}
event.srcElement._background = event.srcElement.style.backgroundColor
DisColor.style.backgroundColor = event.srcElement.style.backgroundColor
HexColor.value = event.srcElement.style.backgroundColor.toUpperCase();
event.srcElement.style.backgroundColor = "white"
current = event.srcElement
}
}
//將顏色值字母大寫
function doOut() {
if (current!=null) current.style.backgroundColor = current._background.toUpperCase();
}
function doclick()
{
if (event.srcElement.tagName == "TD")
{
var clr = event.srcElement._background;
clr = clr.toUpperCase(); //將顏色值大寫
if (targetElement)
{
//給目標無件設置顏色值
rgb=hex2rgb(clr)
targetElement.value = rgb;
}
DisplayClrDlg(false);
return clr;
}
}
-->
</script>
</head>
<body>
<div id="colorpanel" style="position:absolute;display:none;width:253px;height:177px;"></div>
請點擊文本框：<input type="text" size="8" alt="clrDlg" readonly>
<script type="text/javascript" language="javascript">
<!--
//應用顏色對話框必須注意兩點：
//顏色對話框 id : colorpanel 不能變
//觸發顏色對話框顯示的文本框（或其它）必須有 alt 屬性，且值爲 clrDlg（不能忽略大小寫）
var targetElement = null; //接收顏色對話框返回值的元素
//當點下鼠標時，確定顯示還是隱藏顏色對話框
//點擊顏色對話框以外其它區域時，讓對話框隱藏
//點擊顏色對話框色區時，由 doclick 函數來隱藏對話框
function OnDocumentClick()
{
var srcElement = event.srcElement;
if (srcElement.alt == "clrDlg")
{
//顯示顏色對話框
targetElement = event.srcElement;
DisplayClrDlg(true);
}
else
{
//是否是在顏色對話框上點擊的
while (srcElement && srcElement.id!="colorpanel")
{
srcElement = srcElement.parentElement;
}
if (!srcElement)
{
//不是在顏色對話框上點擊的
DisplayClrDlg(false);
}
}
}
//顯示顏色對話框
//display 決定顯示還是隱藏
//自動確定顯示位置
function DisplayClrDlg(display)
{
var clrPanel = document.getElementById("colorpanel");
if (display)
{
var left = document.body.scrollLeft + event.clientX;
var top = document.body.scrollTop + event.clientY;
if (event.clientX+clrPanel.style.pixelWidth > document.body.clientWidth)
{
//對話框顯示在鼠標右方時，會出現遮擋，將其顯示在鼠標左方
left -= clrPanel.style.pixelWidth;
}
if (event.clientY+clrPanel.style.pixelHeight > document.body.clientHeight)
{
//對話框顯示在鼠標下方時，會出現遮擋，將其顯示在鼠標上方
top -= clrPanel.style.pixelHeight;
}
clrPanel.style.pixelLeft = left;
clrPanel.style.pixelTop = top;
clrPanel.style.display = "block";
}
else
{
clrPanel.style.display = "none";
}
}
document.body.onclick = OnDocumentClick;
document.body.onload = intocolor;
//-->
</script>
</body>
</html>