Ext.onReady(function() {
Ext.QuickTips.init();
Ext.BLANK_IMAGE_URL = 'resources/images/default/s.gif';
new Ext.Window({
title : '图片显示',
width : 750,
height : 500,
bodyStyle : 'background-color:#E5E3DF;',
resizable : false,
contentEl : 'mapPic'
}).show();
/**
* 初始化
*/
function pageInit(){
var image = Ext.get('image');
Ext.get('image').on({
'mousedown':{fn:function(){this.setStyle('cursor','url(images/closedhand_8_8.cur),default;');},scope:image},
'mouseup':{fn:function(){this.setStyle('cursor','url(images/openhand_8_8.cur),move;');},scope:image},
'dblclick':{fn:function(){
zoom(image,true,1.2);
}
}});
new Ext.dd.DD(image, 'pic');
image.center();//图片居中
//获得原始尺寸
image.osize = {
width:image.getWidth(),
height:image.getHeight()
};
Ext.get('up').on('click',function(){imageMove('up',image);}); //向上移动
Ext.get('down').on('click',function(){imageMove('down',image);}); //向下移动
Ext.get('left').on('click',function(){imageMove('left',image);}); //左移
Ext.get('right').on('click',function(){imageMove('right',image);}); //右移动
Ext.get('in').on('click',function(){zoom(image,true,1.5);}); //放大
Ext.get('out').on('click',function(){zoom(image,false,1.5);}); //缩小
Ext.get('zoom').on('click',function(){restore(image);}); //还原
};
pageInit();
/**
* 图片移动
*/
function imageMove(direction, el) {
el.move(direction, 50, true);
}
/**
*
* @param el 图片对象
* @param type true放大,false缩小
* @param offset 量
*/
function zoom(el,type,offset){
var width = el.getWidth();
var height = el.getHeight();
var nwidth = type ? (width * offset) : (width / offset);
var nheight = type ? (height * offset) : (height / offset);
var left = type ? -((nwidth - width) / 2):((width - nwidth) / 2);
var top = type ? -((nheight - height) / 2):((height - nheight) / 2);
el.animate(
{
height: {to: nheight, from: height},
width: {to: nwidth, from: width},
left: {by:left},
top: {by:top}
},
null,
null,
'backBoth',
'motion'
);
}
/**
* 图片还原
*/
function restore(el) {
var size = el.osize;
//自定义回调函数
function center(el,callback){
el.center();
callback(el);
}
el.fadeOut({callback:function(){
el.setSize(size.width, size.height, {callback:function(){
center(el,function(ee){//调用回调
ee.fadeIn();
});
}});
}
});
}
});
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>图片缩放浏览</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <link rel="stylesheet" type="text/css" href="resources/css/ext-all.css"> <link rel="stylesheet" type="text/css" href="css/main.css"> <script type="text/javascript" src="js/ext-base.js"></script> <script type="text/javascript" src="js/ext-all-debug.js"></script> <script type="text/javascript" src="js/ext-lang-zh_CN.js"></script> <script type="text/javascript" src="js/main.js"></script> </head> <body oncontextmenu="return false"> <div id="mapPic"> <div class="nav"> <div class="up" id="up"></div> <div class="right" id="right"></div> <div class="down" id="down"></div> <div class="left" id="left"></div> <div class="zoom" id="zoom"></div> <div class="in" id="in"></div> <div class="out" id="out"></div> </div> <img id='image' src='images/girl.jpg' border='0' style="cursor: url(images/openhand_8_8.cur), default;" > </div> </body> </html>
相关视频
相关阅读 asp下面javascript上传图片限制格式大小方法jQuery和JavaScript 库的性能对比在JavaScript中yield实用简洁实现方式JavaScript库开发者们的规则JavaScript和CSS 属性功能javascript去除字符串中出现空格的函数javascript模式对话框属性介绍JavaScript学习和使用经验总结
热门文章
JS文件中的中文在网页
最新文章
JS文件中的中文在网页关于一些Play 1.0.1资
JAVA中抽象类与接口的区别Java技巧:关于Cookie的操作JAVA AWT图形用户界面设计巧用Java将Word转换为Html网页文件
人气排行 JS文件中的中文在网页上显示为乱码解决方法怎么为Java程序添加漂亮背景图片代码JAVA AWT图形用户界面设计怎样获取java线程中信息JS简介及特点Java面向对象编程学习总结js鼠标滑过切换层效果代码下载教你java使用回调和线程处理响应全过程
查看所有1条评论>>