mcs/class/System.Web/System.Web.UI.WebControls/TableItemStyle.cs

   1 /**\r
   2  * Namespace: System.Web.UI.WebControls\r
   3  * Class:     TableItemStyle\r
   4  *\r
   5  * Author:  Gaurav Vaish\r
   6  * Maintainer: gvaish@iitk.ac.in\r
   7  * Contact: <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>\r
   8  * Implementation: yes\r
   9  * Status:  100%\r
  10  *\r
  11  * (C) Gaurav Vaish (2002)\r
  12  */\r
  13 \r
  14 using System;\r
  15 using System.ComponentModel;\r
  16 using System.Web;\r
  17 using System.Web.UI;\r
  18 \r
  19 namespace System.Web.UI.WebControls\r
  20 {\r
  21         public class TableItemStyle: Style\r
  22         {\r
  23                 private static int H_ALIGN = (0x01 << 16);\r
  24                 private static int V_ALIGN = (0x01 << 17);\r
  25                 private static int WRAP    = (0x01 << 18);\r
  26 \r
  27                 public TableItemStyle(): base()\r
  28                 {\r
  29                 }\r
  30 \r
  31                 public TableItemStyle(StateBag bag): base(bag)\r
  32                 {\r
  33                 }\r
  34 \r
  35                 [Bindable(true)]\r
  36                 [DefaultValue(HorizontalAlign.NotSet)]\r
  37                 [NotifyParentProperty(true)]\r
  38                 [WebCategory("Layout")]\r
  39                 [WebSysDescription("TableItemStyle_HorizontalAlign")]\r
  40                 public virtual HorizontalAlign HorizontalAlign\r
  41                 {\r
  42                         get\r
  43                         {\r
  44                                 if(IsSet(H_ALIGN))\r
  45                                         return (HorizontalAlign)ViewState["HorizontalAlign"];\r
  46                                 return HorizontalAlign.NotSet;\r
  47                         }\r
  48                         set\r
  49                         {\r
  50                                 if(!Enum.IsDefined(typeof(HorizontalAlign), value))\r
  51                                 {\r
  52                                         throw new ArgumentException();\r
  53                                 }\r
  54                                 ViewState["HorizontalAlign"] = value;\r
  55                                 Set(H_ALIGN);\r
  56                         }\r
  57                 }\r
  58 \r
  59                 [Bindable(true)]\r
  60                 [DefaultValue(VerticalAlign.NotSet)]\r
  61                 [NotifyParentProperty(true)]\r
  62                 [WebCategory("Layout")]\r
  63                 [WebSysDescription("TableItemStyle_VerticalAlign")]\r
  64                 public virtual VerticalAlign VerticalAlign\r
  65                 {\r
  66                         get\r
  67                         {\r
  68                                 if(IsSet(V_ALIGN))\r
  69                                         return (VerticalAlign)ViewState["VerticalAlign"];\r
  70                                 return VerticalAlign.NotSet;\r
  71                         }\r
  72                         set\r
  73                         {\r
  74                                 if(!Enum.IsDefined(typeof(VerticalAlign), value))\r
  75                                 {\r
  76                                         throw new ArgumentException();\r
  77                                 }\r
  78                                 ViewState["VerticalAlign"] = value;\r
  79                                 Set(V_ALIGN);\r
  80                         }\r
  81                 }\r
  82 \r
  83                 [Bindable(true)]\r
  84                 [DefaultValue(VerticalAlign.NotSet)]\r
  85                 [NotifyParentProperty(true)]\r
  86                 [WebCategory("Layout")]\r
  87                 [WebSysDescription("TableItemStyle_Wrap")]\r
  88                 public virtual bool Wrap\r
  89                 {\r
  90                         get\r
  91                         {\r
  92                                 if(IsSet(WRAP))\r
  93                                         return (bool)ViewState["Wrap"];\r
  94                                 return true;\r
  95                         }\r
  96                         set\r
  97                         {\r
  98                                 ViewState["Wrap"] = value;\r
  99                         }\r
 100                 }\r
 101 \r
 102                 public override void CopyFrom(Style s)\r
 103                 {\r
 104                         if(s!=null && s is TableItemStyle && !s.IsEmpty)\r
 105                         {\r
 106                                 base.CopyFrom(s);\r
 107                                 TableItemStyle from = (TableItemStyle)s;\r
 108                                 if(from.IsSet(H_ALIGN))\r
 109                                 {\r
 110                                         HorizontalAlign = from.HorizontalAlign;\r
 111                                 }\r
 112                                 if(from.IsSet(V_ALIGN))\r
 113                                 {\r
 114                                         VerticalAlign = from.VerticalAlign;\r
 115                                 }\r
 116                                 if(from.IsSet(WRAP))\r
 117                                 {\r
 118                                         Wrap = from.Wrap;\r
 119                                 }\r
 120                         }\r
 121                 }\r
 122 \r
 123                 public override void MergeWith(Style s)\r
 124                 {\r
 125                         if(s!=null && s is TableItemStyle && !s.IsEmpty)\r
 126                         {\r
 127                                 base.MergeWith(s);\r
 128                                 TableItemStyle with = (TableItemStyle)s;\r
 129                                 if(with.IsSet(H_ALIGN) && !IsSet(H_ALIGN))\r
 130                                 {\r
 131                                         HorizontalAlign = with.HorizontalAlign;\r
 132                                 }\r
 133                                 if(with.IsSet(V_ALIGN) && !IsSet(V_ALIGN))\r
 134                                 {\r
 135                                         VerticalAlign = with.VerticalAlign;\r
 136                                 }\r
 137                                 if(with.IsSet(WRAP) && !IsSet(WRAP))\r
 138                                 {\r
 139                                         Wrap = with.Wrap;\r
 140                                 }\r
 141                         }\r
 142                 }\r
 143 \r
 144                 public override void Reset()\r
 145                 {\r
 146                         if(IsSet(H_ALIGN))\r
 147                                 ViewState.Remove("HorizontalAlign");\r
 148                         if(IsSet(V_ALIGN))\r
 149                                 ViewState.Remove("VerticalAlign");\r
 150                         if(IsSet(WRAP))\r
 151                                 ViewState.Remove("Wrap");\r
 152                         base.Reset();\r
 153                 }\r
 154 \r
 155                 public override void AddAttributesToRender(HtmlTextWriter writer, WebControl owner)\r
 156                 {\r
 157                         base.AddAttributesToRender(writer, owner);\r
 158                         if(!Wrap)\r
 159                         {\r
 160                                 writer.AddAttribute(HtmlTextWriterAttribute.Nowrap, "nowrap");\r
 161                         }\r
 162                         if(HorizontalAlign != HorizontalAlign.NotSet)\r
 163                         {\r
 164                                 writer.AddAttribute(HtmlTextWriterAttribute.Align, TypeDescriptor.GetConverter(typeof(HorizontalAlign)).ConvertToString(HorizontalAlign));\r
 165                         }\r
 166                         if(VerticalAlign != VerticalAlign.NotSet)\r
 167                         {\r
 168                                 writer.AddAttribute(HtmlTextWriterAttribute.Valign, TypeDescriptor.GetConverter(typeof(VerticalAlign)).ConvertToString(VerticalAlign));\r
 169                         }\r
 170                 }\r
 171         }\r
 172 }\r