SVG的内部事件添加：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE html>
<html>
<head>
<base href="<%=basePath%>">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Title</title>
</head>
<body>
<div>
<svg width="440px" height="240px" xmlns="http://www.w3.org/2000/svg">
<rect id="rectangle" x=10 y=20 width=30 height=40 style="stroke:gray;fill:#ff9;stroke-width:3" />
<text id="output" x=10 y=80 style="font-size:9pt"></text>
<!--
SVG脚本控制
获取元素：
document.getElementById(idStr);
document.getElementsByTagName(tagName);
元素设置属性：
element.getAttribute(attr);
element.setAttribute(name,attr);
element.removeAttribute(name);
元素设置style：
element.style.getPropertyValue(proName);
element.style.setPropertyValue(proName,value,priority[null/important]);
element.style.removeProperty(proName);
一次性设置style属性：
element.style.cssText,
文本内容：
element.textContent;
-->
<script type="application/ecmascript">
//<![CDATA[
var txt = document.getElementById(‘output‘);
var r = document.getElementById(‘rectangle‘);
var msg = r.getAttribute(‘x‘)+‘, ‘+r.getAttribute(‘y‘)+‘ ‘+
r.style.getPropertyValue(‘stroke‘)+‘ ‘+
r.style.getPropertyValue(‘fill‘);
r.setAttribute(‘height‘,‘30‘);
txt.textContent = msg;
//]]>
</script>
</svg>
</div>
<div>
<svg width="440px" height="240px" xmlns="http://www.w3.org/2000/svg">
<circle id=‘circle‘ cx=50 cy=50 r=20 style="fill:#ff9;stroke:black;stroke-width:1" />
<script type="application/ecmascript">
//<![CDATA[
function grow(evt){
var obj = evt.target;
obj.setAttribute(‘r‘,‘30‘);
}
function shrink(evt){
this.setAttribute(‘r‘,‘20‘);
}
function reStroke(evt){
var w = evt.target.style.getPropertyValue(‘stroke-width‘);
w = 4-parseFloat(w);
evt.target.style.setProperty(‘stroke-width‘,w,null);
}
var c = document.getElementById(‘circle‘);
c.addEventListener(‘mouseover‘,grow);
c.addEventListener(‘mouseout‘,shrink);
c.addEventListener(‘click‘,reStroke);
//]]>
</script>
</svg>
</div>
<div>
<svg width="400px" height="250px" id=‘svg03‘ xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://wwww.w3.org/1999/xlink" onload="init(evt)">
<defs>
<style type="text/css">
<![CDATA[
svg {
stroke:black;
fill:white;
}
g.selected rect {
fill: #ffc;
}
text {
stroke: none;
fill: black;
text-anchor: middle;
}
line.slider {
stroke: gray;
stroke-width: 2;
}
]]>
</style>
<!-- 这样的事件在chrome中竟然无法使用断点来调试； -->
<script type="application/ecmascript">
<![CDATA[
// 选中的序号
var scaleChoice = 1;
// 选中放大的比例
var scaleFactor = [1.25,1.5,1.75];
// 颜色滑块选择的序号，-1表示没有选择；
var slideChoice = -1;
var rgb = [100,100,100];
// 初始化事件
function init(evt){
var obj;
for(var i=0;i<3;i++){
obj = document.getElementById(‘scale‘+i);
obj.addEventListener(‘click‘,clickButton,false);
obj = document.getElementById(‘sliderGroup‘+i);
obj.addEventListener(‘mousedown‘,startColorDrag,false);
obj.addEventListener(‘mousemove‘,doColorDrag,false);
obj.addEventListener(‘mouseup‘,endColorDrag,false);
}
transformShirt();
// 添加鼠标放开事件监控，这样在整个svg范围内鼠标放开都可以停止拖动；
document.getElementById(‘eventCatcher‘).addEventListener(‘mouseup‘,endColorDrag,false);
}
// 开始颜色拖动
function startColorDrag(evt){
var sliderId = evt.target.parentNode.getAttribute(‘id‘);
endColorDrag(evt);
slideChoice = parseInt(sliderId[sliderId.length-1]);
}
// 结束颜色拖动
function endColorDrag(evt){
slideChoice = -1;
}
// 进行颜色拖动
function doColorDrag(evt){
var sliderId = evt.target.parentNode.getAttribute(‘id‘);
chosen = parseInt(sliderId[sliderId.length -1 ]);
if(slideChoice >=0 && slideChoice == chosen){
var obj = evt.target;
// 此处坐标的选择会有问题；当窗口不是最大化的时候，不能进行拖动了；
// 需要减去的是svg对象离浏览器顶端的距离；需要进行计算；
var s03 = document.getElementById(‘svg03‘);
console.log(s03.offsetTop);//这个始终是494
console.log(evt.clientY);// 这个开始是390多；
var pos = evt.clientY - 397;
console.log(pos);
if(pos <0){
pos = 0;
}
if(pos > 100){
pos = 100;
}
obj = document.getElementById(‘slide‘+slideChoice);
obj.setAttribute(‘y1‘,pos);
obj.setAttribute(‘y2‘,pos);
rgb[slideChoice] = 100 -pos;
var colorStr = ‘rgb(‘+rgb[0]+‘%,‘+rgb[1]+‘%,‘+rgb[2]+‘%)‘;
console.log(colorStr);
obj = document.getElementById(‘shirt‘);
obj.style.setProperty(‘fill‘,colorStr,null);
}
}
// 衣服型号按钮点击事件
function clickButton(evt){
var choice = evt.target.parentNode;
var name = choice.getAttribute(‘id‘);
var old = document.getElementById(‘scale‘+scaleChoice);
old.removeAttribute(‘class‘);
choice.setAttribute(‘class‘,‘selected‘);
scaleChoice = parseInt(name[name.length-1]);
transformShirt();
}
// 衣服变换事件
function transformShirt(){
var factor = scaleFactor[scaleChoice];
var obj = document.getElementById(‘shirt‘);
obj.setAttribute(‘transform‘,‘translate(150,150) scale(‘+factor+‘)‘);
obj.setAttribute(‘stroke-width‘,1/factor);
}
]]>
</script>
<path id="shirt-outline" d="M-6-30-32-19-25.5-13-22-14-22,30,23,30,23-14,26.5-13,33-19,7-30A6.5,6,0,0,1-6-30" />
</defs>
<rect id="eventCatcher" x=0 y=0 width=400 height=300 style="fill:none" pointer-events="visible"/>
<g id="sliderGroup0" transform="translate(230,10)">
<rect x=-10 y=-5 width=40 height=110 />
<rect x=5 y=0 width=10 height=100 style=‘fill:red‘ />
<line id="slide0" class="slider" x1=0 y1=0 x2=20 y2=0 />
</g>
<g id="sliderGroup1" transform="translate(280,10)">
<rect x=-10 y=-5 width=40 height=110 />
<rect x=5 y=0 width=10 height=100 style=‘fill:green‘ />
<line id="slide1" class="slider" x1=0 y1=0 x2=20 y2=0 />
</g>
<g id="sliderGroup2" transform="translate(330,10)">
<rect x=-10 y=-5 width=40 height=110 />
<rect x=5 y=0 width=10 height=100 style=‘fill:blue‘ />
<line id="slide2" class="slider" x1=0 y1=0 x2=20 y2=0 />
</g>
<g id="shirt">
<use xlink:href="#shirt-outline" x=0 y=0 />
</g>
<g id="scale0">
<rect x=100 y=10 width=30 height=30 />
<text x=115 y=30>S</text>
</g>
<g id="scale1" class=‘selected‘>
<rect x=140 y=10 width=30 height=30 />
<text x=155 y=30>M</text>
</g>
<g id="scale2">
<rect x=180 y=10 width=30 height=30 />
<text x=195 y=30>L</text>
</g>
</svg>
</div>
</body>
</html>
时间： 2024-10-20 16:49:49