useravatar.cs

本系统是在asp版《在线文件管理器》的基础上设计制作

//------------------------------------------------------------------------------
// <copyright company="Telligent Systems">
//     Copyright (c) Telligent Systems Corporation.  All rights reserved.
// </copyright> 
//------------------------------------------------------------------------------

using System;
using System.Web;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI;
using CommunityServer.Components;

namespace CommunityServer.Controls {

    public class UserAvatar : PlaceHolder {

        bool isCloakedUser = false;

		#region Properties

		public User User {

			get {
				if (_user == null) {
					Object state = ViewState[ "UserID" ];
					if ( state != null ) {
						Int32 userID = (Int32)state;
						_user = Users.GetUser( userID, false );
					} else {
						_user = Users.GetUser( CSContext.Current.UserID, false);
					}
				}
				return _user;
			}
			set {
				_user = value;
				if ( _user != null ) {
					ViewState[ "UserID" ] = _user.UserID;
				} else {
					ViewState.Remove( "UserID" );
				}
			}
		}
		User _user;

		[
		System.ComponentModel.DefaultValue( true ),
		]
		public virtual Boolean PadImage {
			get {
				Object state = ViewState["PadImage"];
				if ( state != null ) {
					return (Boolean)state;
				}
				return true;
			}
			set {
				ViewState["PadImage"] = value;
			}
		}

		[
		System.ComponentModel.DefaultValue( 0 ),
		]
		public virtual Int32 Border {
			get {
				Object state = ViewState["Border"];
				if ( state != null ) {
					return (Int32)state;
				}
				return 0;
			}
			set {
				ViewState["Border"] = value;
			}
		}

		#endregion

        protected override void Render(HtmlTextWriter writer) {
            HtmlImage image = new HtmlImage();
            Literal literal = new Literal();

			if (!CSContext.Current.SiteSettings.EnableAvatars)
				return;
            
            if (IsCloakedUser)
                return;

            if ( (User.HasAvatar) && (User.EnableAvatar) && (User.IsAvatarApproved) ) {

				if ( this.PadImage ) {
					writer.Write(Formatter.Whitespace(2,0,true,true));
				}

                if (!User.AvatarUrl.StartsWith("users/avatar.aspx")) {
					image.Border = this.Border;
                    image.Src = this.User.AvatarUrl;
                    image.Height = CSContext.Current.SiteSettings.AvatarHeight;
                    image.Width = CSContext.Current.SiteSettings.AvatarWidth;
                } else {
                    image.Src = Globals.ApplicationPath + "/" + this.User.AvatarUrl;
                }

                // Render the image
                //
                image.RenderControl(writer);

            }
        }

        /// <summary>
        /// Added to specify if this user should be displayed as anonymous
        /// </summary>
        public bool IsCloakedUser { 
            get { return isCloakedUser; }
            set { isCloakedUser = value; }
        }

    }

}