자바로만든 전자계산기
1. 기본적인 전자 계산기 기능이 갇춰져있습니다.
2. 반투명에 깔끔한 디자인이 여느 웹사이트에 붙여놔도 손색이 없습니다.
3. 마우스로 드래그 시켜서 이동시킬수있습니다. 레이아웃상 어느 위치에 붙여도 괜찮습니다.
아래는 본문스크립트입니다.
<HTML>
<HEAD>
<TITLE>해피CGI</title>
<style type="text/css">
<!--
#demo {
margin:50px;
}
#calculator {
filter:alpha(opacity=85);
-moz-opacity:.85;
opacity:.85;
}
.drag
{
position:relative;
cursor:hand
}
#calculator
{
background-color:#F4F4F4;
cursor:move;
width:190px;
}
.calculatorcontainer
{
padding:5px;
border-top:1px solid #C0C0C0;
border-left:1px solid #C0C0C0;
border-right:2px outset #C0C0C0;
border-bottom:2px outset #C0C0C0;
}
#calculator #control
{
text-align:right;
}
#calculator input
{
width:40px;
height:30px;
margin:2px;
background-color:#FFF;
font-family:verdana,arial,helvetica,sans-serif;
font-size:0.95em;
border:1px solid #C0C0C0;
cursor:hand;
cursor:pointer;
}
#calculator img
{
border:0;
}
#calculator #result
{
width:173px;
font-size:1.3em;
padding:3px;
cursor:text;
}
#calculator .operation
{
color:#999;
font-weight:bold;
background-color:#DDD;
}
#calculator .equals
{
color:#FFF;
font-weight:bold;
background-color:#336699;
}
#version
{
float:left;
padding:2px 0px 0px 2px;
font-size:0.65em;
}
#version a
{
color:#333;
cursor:move;
text-decoration:none;
}
-->
</style>
<script type="text/javascript">
<!--
var calculation = "";
var resultDone = false;
function addToCalc(val) {
if(isNaN(val) && isNaN(calculation.substring(calculation.length-1, calculation.length)))
return false;
if(!isNaN(val) && resultDone) {
resetCalc();
resultDone = false;
} else if(isNaN(val) && resultDone) {
resultDone = false;
}
calculation += val;
showResult();
}
function addToCalcDirect(val) {
calculation = val;
}
function resetCalc() {
calculation = "";
showResult();
}
function positiveNegative() {
if(calculation.substring(0, 1) == "-")
calculation = calculation.substring(1, calculation.length);
else
calculation = "-" + calculation;
showResult();
}
function calculate() {
if(calculation != "") {
try {
calculation = eval(calculation);
} catch(e) {
reportError("Error!");
}
resultDone = true;
showResult();
}
else
return false;
}
function percentage() {
try {
calculation = eval(calculation) / 100;
} catch(e) {
reportError("Error!");
}
resultDone = true;
showResult();
}
function squareRoot()
{
try {
calculation = Math.sqrt(eval(calculation));
} catch(e) {
reportError("Error!");
}
resultDone = true;
showResult();
}
function showResult() {
calculation = calculation.toString();
if(calculation == "NaN") {
reportError("Error!");
} else {
document.getElementById("result").value = calculation;
}
}
function reportError(msg) {
calculation = msg;
document.getElementById("result").value = msg;
}
function closeCalculator() {
document.getElementById("calculator").style.display = "none";
}
function about() {
msg = "CJ Floating Calculator\n=============\n\n";
msg += "Developed by James Crooke\nhttp://www.cj-design.com";
alert(msg);
}
var ie = document.all;
var ns6 = document.getElementById && !document.all;
var dragapproved=false;
var z, x, y;
function move(e) {
if (dragapproved) {
z.style.left=ns6? temp1+e.clientX-x: temp1+event.clientX-x;
z.style.top=ns6? temp2+e.clientY-y : temp2+event.clientY-y;
return false;
}
}
function drags(e) {
if (!ie&&!ns6)
return;
var firedobj = ns6? e.target : event.srcElement;
var topelement = ns6? "HTML" : "BODY";
while (firedobj.tagName != topelement&&firedobj.className != "drag") {
firedobj = ns6? firedobj.parentNode : firedobj.parentElement;
}
if (firedobj.className == "drag") {
dragapproved = true;
z = firedobj;
temp1 = parseInt(z.style.left+0);
temp2 = parseInt(z.style.top+0);
x = ns6? e.clientX: event.clientX;
y = ns6? e.clientY: event.clientY;
document.onmousemove=move;
return false;
}
}
document.onmousedown=drags;
document.onmouseup=new Function("dragapproved=false");
// -->
</script>
</HEAD>
<BODY>
전자계산기를 드래그 할 수 있습니다.
<div id="demo">
<form onsubmit="calculate(); return false;">
<div id="calculator" class="drag">
<div class="calculatorcontainer">
<div id="control"><a href="#" onclick="closeCalculator();return false"><img src="http://www.blueb.co.kr/SRC/javascript/image4/close1.gif" style="position:relative;top:-1px"/></a></div>
<input type="text" name="input" size="16" id="result" onclick="this.focus()" onkeyup="addToCalcDirect(this.value)"><br />
<input type="button" value="1" onclick="addToCalc(this.value)"><input type="button" value="2" onclick="addToCalc(this.value)"><input type="button" value="3" onclick="addToCalc(this.value)"><input type="button" value="+" onclick="addToCalc(this.value)" class="operation"><br />
<input type="button" value="4" onclick="addToCalc(this.value)"><input type="button" value="5" onclick="addToCalc(this.value)"><input type="button" value="6" onclick="addToCalc(this.value)"><input type="button" value="-" onclick="addToCalc(this.value)" class="operation"><br />
<input type="button" value="7" onclick="addToCalc(this.value)"><input type="button" value="8" onclick="addToCalc(this.value)"><input type="button" value="9" onclick="addToCalc(this.value)"><input type="button" value="*" onclick="addToCalc(this.value)" class="operation"><br />
<input type="button" value="+/-" onclick="positiveNegative()" class="operation"><input type="button" value="0" onclick="addToCalc(this.value)"><input type="button" value="." onclick="addToCalc(this.value)" class="operation"><input type="button" value="/" onclick="addToCalc(this.value)" class="operation"><br />
<input type="button" value="sqrt" onclick="squareRoot()" class="operation"><input type="button" value="%" onclick="percentage()" class="operation"><input type="button" value="c" onclick="resetCalc()" class="operation"><input type="button" value="=" onclick="calculate()" class="equals">
</div>
</div>
</form>
</div>
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