ratingimagebutton.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.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;

using CommunityServer.Components;
using CommunityServer.Discussions.Components;

namespace CommunityServer.Discussions.Controls 
{
    public class RatingImageButton : PlaceHolder 
    {

        #region Member variables
        CSContext csContext = CSContext.Current;
        #endregion

        #region Render logic
        protected override void Render(HtmlTextWriter writer) 
        {

            int totalRatings = 0;

            if (this.Thread != null) 
            {
                this.Rating = this.Thread.ThreadRating;
                totalRatings = this.Thread.TotalRatings;
            }

            // Do we have data to display
            //
            if ((Rating == 0) && (totalRatings == 0) && (MoreDetail)) 
            {
                return;
            }

            HtmlAnchor anchor = new HtmlAnchor();
            HtmlImage image = new HtmlImage();
            string text;

            if (Rating <= 0.25) 
            {
                image.Src = Globals.GetSkinPath() + "/images/Star0.gif";
                text = ResourceManager.GetString("PostRating_Zero");
            } 
            else if (Rating <= 0.5) 
            {
                image.Src = Globals.GetSkinPath() + "/images/StarHalf.gif";
                text = ResourceManager.GetString("PostRating_One");
            } 
            else if (Rating <= 1) 
            {
                image.Src = Globals.GetSkinPath() + "/images/Star1.gif";
                text = ResourceManager.GetString("PostRating_One");
            } 
            else if (Rating <= 1.5) 
            {
                image.Src = Globals.GetSkinPath() + "/images/Star1half.gif";
                text = ResourceManager.GetString("PostRating_Two");
            } 
            else if (Rating <= 2) 
            {
                image.Src = Globals.GetSkinPath() + "/images/Star2.gif";
                text = ResourceManager.GetString("PostRating_Two");
            } 
            else if (Rating <= 2.5) 
            {
                image.Src = Globals.GetSkinPath() + "/images/Star2half.gif";
                text = ResourceManager.GetString("PostRating_Three");
            } 
            else if (Rating <= 3) 
            {
                image.Src = Globals.GetSkinPath() + "/images/Star3.gif";
                text = ResourceManager.GetString("PostRating_Three");
            } 
            else if (Rating <= 3.5) 
            {
                image.Src = Globals.GetSkinPath() + "/images/Star3half.gif";
                text = ResourceManager.GetString("PostRating_Four");
            } 
            else if (Rating <= 4) 
            {
                image.Src = Globals.GetSkinPath() + "/images/Star4.gif";
                text = ResourceManager.GetString("PostRating_Four");
            } 
            else if (Rating <= 4.5) 
            {
                image.Src = Globals.GetSkinPath() + "/images/Star4Half.gif";
                text = ResourceManager.GetString("PostRating_Five");
            } 
            else 
            {
                image.Src = Globals.GetSkinPath() + "/images/Star5.gif";
                text = ResourceManager.GetString("PostRating_Five");
            }


            image.Border = 0;

            if (this.MoreDetail) 
            {
                if (Rating == 0)
                    image.Alt = string.Format(ResourceManager.GetString("PostRating_AltText"), text, "0", Thread.TotalRatings);
                else
                    image.Alt = string.Format(ResourceManager.GetString("PostRating_AltText"), text, Rating.ToString("#.##"), Thread.TotalRatings);

                anchor.Controls.Add(image);
                anchor.HRef = "javascript:OpenWindow('" + Globals.GetSiteUrls().PostRating(Thread.PostID) + "')";
                anchor.RenderControl(writer);
            } 
            else 
            {
                if (Rating == 0)
                    image.Alt = string.Format(ResourceManager.GetString("Rating_AltText"), text, "0");
                else
                    image.Alt = string.Format(ResourceManager.GetString("Rating_AltText"), text, Rating.ToString("#.##"));

                image.RenderControl(writer);
            }
        }
        #endregion



        #region Public Properties
        //TODO enable state persistence when Threads.GetThread is implemented
        public Thread Thread 
        {
            get 
            {
                //				if ( _thread == null ) {
                //					Object state = ViewState[ "ThreadID" ];
                //					if ( state != null ) {
                //						Int32 threadID = (Int32)state;
                //						ForumsDataProvider provider = ForumsDataProvider.Instance();
                //						this._thread = provider.GetThread( threadID );
                //					}
                //				}
                return _thread;
            }
            set 
            { 
                _thread = value;
                //				if ( _thread != null ) {
                //					ViewState[ "ThreadID" ] = _thread.ThreadID;
                //				} else {
                //					ViewState.Remove( "ThreadID" );
                //				}
            }
        }
        Thread _thread;


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

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

        #endregion

    }
}