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using System;

using System.Web.UI;using System.Web.UI.WebControls;using System.ComponentModel;

namespace blackflash{

 /// <summary> /// Img 的摘要说明。 /// </summary> [DefaultProperty("Text"),  ToolboxData("<{0}:Img runat=server></{0}:Img>")] public class Img : Control, IAttributeAccessor {   [Bindable(true),   Category("Appearance"),   DefaultValue("")]   public String Src  {    get   {     return (String)ViewState["Src"];   }   set   {     ViewState["Src"] = value;   }  }  public String Href  {    get   {     return (String)ViewState["Href"];   }   set   {     ViewState["Href"] = value;   }  }  public String Align  {    get   {     return (String)ViewState["align"];   }   set   {     ViewState["align"] = value;   }  }  public String Alpha  {    get   {     return (String)ViewState["alpha"];   }   set   {     ViewState["alpha"] = value;   }  }  public String Target  {    get   {     return (String)ViewState["Target"];   }   set   {     ViewState["Target"] = value;   }  }  public void SetAttribute(String name, String value1)  {    ViewState[name] = value1;  }  public String GetAttribute(String name)  {    return (String)ViewState[name];  }

  /// <summary>

  /// 将此控件呈现给指定的输出参数。  /// </summary>  /// <param name="output"> 要写出到的 HTML 编写器 </param>  protected override void Render(HtmlTextWriter output)  {    if (this.Src !="")   {        if (this.Href !=null)    {      output.Write("<a");     output.Write(" href='"+this.Href+"'");     if (this.Target !=null)     {       output.Write(" target='"+this.Target+"'");     }     output.Write(">");    }        output.Write("<img ");       if (this.Src !=null)    {      output.Write("src='"+this.Src+"'");    }

    if (this.Alpha !=null)

    {      string[] strAlpha = this.Alpha.Split(',');     output.Write("style='filter:alpha(opacity="+strAlpha[0]+")' οnmοuseοver='this.filters.Alpha.opacity=/""+strAlpha[1]+"/"' οnmοuseοut='this.filters.Alpha.opacity=/""+strAlpha[0]+"/"' ");    }    if (this.Align !=null)    {      output.Write(" align='"+this.Align+"'");    }    if ((String)ViewState["style"] != null)    {      output.Write(" style='"+(String)ViewState["style"]+"'");    }    if ((String)ViewState["width"] != null)    {      output.Write(" width='"+(String)ViewState["width"]+"'");    }    if ((String)ViewState["height"] != null)    {      output.Write(" height='"+(String)ViewState["height"]+"'");    }    output.Write(" border='0' />");    if (this.Href !=null)    {      output.Write("</a>");    }   }  } }}

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