//剪裁头像对象和宽高比例
var jcrop_api, boundx, boundy;
//上传图片 
//Id：上传控件Id
//IsShowProgress:是否需要展示进度条
//SuccessFunc: 上传成功执行的方法
function UploadImg(Id, IsShowProgress, SuccessFunc,IsJcrop) {
 var uploadObj = $("#" + Id);
 var htmlstr = "<div class='upload_ShowFileProgress' id='" + Id + "-queue' " + (IsShowProgress ? "" : "style='display:none;'") + "></div>";
 uploadObj.parent().append(htmlstr);
 var img_UploadUrl = IsJcrop ? "/Upload/UploadifyHeader" : "/Upload/UploadifyImg"; //Upload控制器中方法
 uploadObj.uploadify({
 //指定swf文件
 'swf': '/Scripts/uploadify/uploadify.swf',//下载uploadify插件中的uploadify.swf
 //后台处理的页面
 'uploader': img_UploadUrl,
 //进度条id
 'queueID': Id + "-queue",
 //进度条显示完成后是否自动消失
 'removeCompleted': false,
 //按钮相关
 'buttonClass': 'btn_Upload',
 'buttonText': '请选择图片',
 'height': '31',
 'width': '108',
 //在浏览窗口底部的文件类型下拉菜单中显示的文本
 'fileTypeDesc': 'Image Files',
 //允许上传的文件后缀
 'fileTypeExts': '*.gif; *.jpg; *.png; *.bmp; *.jpeg; *.svg',
 //选择文件后自动上传
 'auto': true,
 //设置为true将允许多文件上传
 'multi': false,
 'onUploadSuccess': function (file, data, response) {
  if (SuccessFunc != undefined && SuccessFunc != null && SuccessFunc.length > 0) {
  eval(SuccessFunc + "(file,data,response)");
  }
 }
 });
}
//上传文件
//Id：上传控件Id
//IsShowProgress:是否需要展示进度条
//SuccessFunc: 上传成功执行的方法
function UploadFile(Id, IsShowProgress, SuccessFunc) {
 var uploadObj = $("#" + Id);
 var htmlstr = "<div class='upload_ShowFileProgress' id='" + Id + "-queue' " + (IsShowProgress ? "" : "style='display:none;'") + "></div>";
 uploadObj.parent().append(htmlstr);
 uploadObj.uploadify({
 //指定swf文件
 'swf': '/Scripts/uploadify/uploadify.swf',
 //后台处理的页面
 'uploader': '/Upload/Uploadify',
 //进度条id
 'queueID': Id + "-queue",
 //进度条显示完成后是否自动消失
 'removeCompleted': false,
 //按钮相关
 'buttonClass': 'btn_Upload',
 'buttonText': '请选择文件',
 'height': '31',
 'width': '108',
 //上传文件的类型 默认为所有文件
 'All Files': '*.*',
 //在浏览窗口底部的文件类型下拉菜单中显示的文本
 //'fileTypeDesc': 'Image Files',
 //允许上传的文件后缀
 'fileTypeExts': '*.*',
 //选择文件后自动上传
 'auto': false,
 //设置为true将允许多文件上传
 'multi': true,
 'onUploadSuccess': function (file, data, response) {
  if (SuccessFunc != undefined && SuccessFunc != null && SuccessFunc.length > 0) {
  eval(SuccessFunc + "(file,data,response)");
  }
 }
 });
}
//设定图片
function SetJcropImage(url) {
 $(".div_NoFileTip").hide();
 $(".UploadImgContainer").show();
 $("#preview_large").attr("src", url);
 $("#preview_large2").attr("src", url);
 $("#preview_large3").attr("src", url);
 $("#imgsrc").val(url);
 ErealizeJcrop(url);
}
//剪切图片
function ErealizeJcrop(url) {
 var $pcnt = $('#preview_large2').parent(),
 xsize = $pcnt.width(),
 ysize = $pcnt.height();
 $('#preview_large').Jcrop({
 onChange: updatePreview,
 onSelect: updatePreview,
 onSelect: updateCoords,
 aspectRatio: xsize / ysize
 }, function () {
 var bounds = this.getBounds();
 boundx = bounds[0];
 boundy = bounds[1];
 jcrop_api = this;
 // $preview.appendTo(jcrop_api.ui.holder);
 });
 //更换图片时重新加载图片
 if (jcrop_api != undefined)
 jcrop_api.setImage(url);
 function updateCoords(c) {
 $('#x').val(c.x);
 $('#y').val(c.y);
 $('#w').val(c.w);
 $('#h').val(c.h);
 };
 function updatePreview(c) {
 if (parseInt(c.w) > 0) {
  var rx = xsize / c.w;
  var ry = ysize / c.h;

  $("#preview_large2").css({
  width: Math.round(rx * boundx) + 'px',
  height: Math.round(ry * boundy) + 'px',
  marginLeft: '-' + Math.round(rx * c.x) + 'px',
  marginTop: '-' + Math.round(ry * c.y) + 'px'
  });

  $pcnt = $('#preview_large3').parent(),
  xsize2 = $pcnt.height();
  ysize2 = $pcnt.height();
  var rx2 = xsize2 / c.w;
  var ry2 = ysize2 / c.h;

  $("#preview_large3").css({
  width: Math.round(rx2 * boundx) + 'px',
  height: Math.round(ry2 * boundy) + 'px',
  marginLeft: '-' + Math.round(rx2 * c.x) + 'px',
  marginTop: '-' + Math.round(ry2 * c.y) + 'px'
  });

 }
 };

 #region 判断文件夹是否存在，不存在则创建，返回文件夹路径
 private void CheckFileExistsCreateNew(string filepath)
 {
  if (!Directory.Exists(Server.MapPath(filepath)))
  {
  Directory.CreateDirectory(Server.MapPath(filepath));//创建文件夹
  }
 }
 #endregion

 #region 上传图片

 //上传头像
 [HttpPost]
 public JsonResult UploadifyHeader(HttpPostedFileBase fileData)
 {
  if (fileData != null)
  {
  try
  {
   // 文件上传后的保存路径

   string fileName = Path.GetFileName(fileData.FileName);// 原始文件名称
   string fileExtension = Path.GetExtension(fileName); // 文件扩展名
   string saveName =DateTime.Now.ToString("yyyyMMddHHmmssffff")+"_Y" + fileExtension; // 保存文件名称 
   string Url = "/Upload/" + CurrentUserInfo.Sys_RentCompany.CompanyKey + "/" + CurrentUserInfo.Comm_User.Id + "/UploadImg"; //在项目中创建一个Upload文件夹存放上传和截取的图片 CurrentUserInfo.Sys_RentCompany.CompanyKey 为session 保存的值 这里对应的文件夹的路径 自己可以定义
   string ShowUrl = Url + "/" + saveName;
   string filePhysicalPath = Server.MapPath(ShowUrl);
   //当前登陆人文件夹
   CheckFileExistsCreateNew(Url);

   fileData.SaveAs(filePhysicalPath);

   //压缩图片
   string YsFileImg = ImgHandler.YsImg(ShowUrl, filePhysicalPath);

   return Json(YsFileImg);
  }
  catch (Exception ex)
  {
   return Json(new { Success = false, Message = ex.Message }, JsonRequestBehavior.AllowGet);
  }
  }
  else
  {
  return Json(new { Success = false, Message = "请选择要上传的文件！" }, JsonRequestBehavior.AllowGet);
  }
 }

 //上传头像
 [HttpPost]
 public JsonResult UploadifyImg(HttpPostedFileBase fileData)
 {
  if (fileData != null)
  {
  try
  {
   // 文件上传后的保存路径

   string fileName = Path.GetFileName(fileData.FileName);// 原始文件名称
   string fileExtension = Path.GetExtension(fileName); // 文件扩展名
   string saveName = DateTime.Now.ToString("yyyyMMddHHmmssffff") + "_Y" + fileExtension; // 保存文件名称 
   //string filed = "/Upload/" + saveName;//路经
   string Url = "/Upload/" + CurrentUserInfo.Sys_RentCompany.CompanyKey + "/" + CurrentUserInfo.Comm_User.Id + "/UploadImg";
   string ShowUrl = Url + "/" + saveName;
   string filePhysicalPath = Server.MapPath(ShowUrl);
   //当前登陆人文件夹
   CheckFileExistsCreateNew(Url);

   fileData.SaveAs(filePhysicalPath);

   return Json(ShowUrl);
  }
  catch (Exception ex)
  {
   return Json(new { Success = false, Message = ex.Message }, JsonRequestBehavior.AllowGet);
  }
  }
  else
  {
  return Json(new { Success = false, Message = "请选择要上传的文件！" }, JsonRequestBehavior.AllowGet);
  }
 }

 //保存剪切的图片
 [HttpPost]
 public JsonResult JcropImg(FormCollection colls)
 {
  JsonFormatResult result = new JsonFormatResult { IsSuccess = true, Message = "保存成功！" };
  try
  {
  int x = int.Parse(colls["x"]);
  int y = int.Parse(colls["y"]);
  int w = int.Parse(colls["w"]);
  int h = int.Parse(colls["h"]);
  string imgsrc = colls["imgsrc"];
  string Path = ImgHandler.CutAvatar(imgsrc, x, y, w, h);
  result.Data = Path;
  }
  catch (Exception e)
  {
  result.IsSuccess = false;
  result.Message = e.Message;
  }
  return Json(result);
 } 
 #endregion