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.Web;\r
  16 using System.Web.UI;\r
  17 \r
  18 namespace System.Web.UI.WebControls\r
  19 {\r
  20         public class TableItemStyle: Style\r
  21         {\r
  22                 private static int H_ALIGN = (0x01 << 16);\r
  23                 private static int V_ALIGN = (0x01 << 17);\r
  24                 private static int WRAP    = (0x01 << 18);\r
  25 \r
  26                 public TableItemStyle(): base()\r
  27                 {\r
  28                 }\r
  29 \r
  30                 public TableItemStyle(StateBag bag): base(bag)\r
  31                 {\r
  32                 }\r
  33 \r
  34                 public virtual HorizontalAlign HorizontalAlign\r
  35                 {\r
  36                         get\r
  37                         {\r
  38                                 if(IsSet(H_ALIGN))\r
  39                                         return (HorizontalAlign)ViewState["HorizontalAlign"];\r
  40                                 return HorizontalAlign.NotSet;\r
  41                         }\r
  42                         set\r
  43                         {\r
  44                                 if(!Enum.IsDefined(typeof(HorizontalAlign), value))\r
  45                                 {\r
  46                                         throw new ArgumentException();\r
  47                                 }\r
  48                                 ViewState["HorizontalAlign"] = value;\r
  49                                 Set(H_ALIGN);\r
  50                         }\r
  51                 }\r
  52 \r
  53                 public virtual VerticalAlign VerticalAlign\r
  54                 {\r
  55                         get\r
  56                         {\r
  57                                 if(IsSet(V_ALIGN))\r
  58                                         return (VerticalAlign)iewState["VerticalAlign"];\r
  59                                 return VerticalAlign.NotSet;\r
  60                         }\r
  61                         set\r
  62                         {\r
  63                                 if(!Enum.IsDefined(typeof(VerticalAlign), value))\r
  64                                 {\r
  65                                         throw new ArgumentException();\r
  66                                 }\r
  67                                 ViewState["VerticalAlign"] = value;\r
  68                                 Set(V_ALIGN);\r
  69                         }\r
  70                 }\r
  71 \r
  72                 public virtual bool Wrap\r
  73                 {\r
  74                         get\r
  75                         {\r
  76                                 if(IsSet(WRAP))\r
  77                                         return (bool)ViewState["Wrap"];\r
  78                                 return true;\r
  79                         }\r
  80                         set\r
  81                         {\r
  82                                 ViewState["Wrap"] = value;\r
  83                         }\r
  84                 }\r
  85 \r
  86                 public override void CopyFrom(Style s)\r
  87                 {\r
  88                         if(s!=null && s is TableItemStyle && !s.IsEmpty)\r
  89                         {\r
  90                                 base.CopyFrom(s);\r
  91                                 TableItemStyle from = (TableItemStyle)s;\r
  92                                 if(from.IsSet(H_ALIGN))\r
  93                                 {\r
  94                                         HorizontalAlign = from.HorizontalAlign;\r
  95                                 }\r
  96                                 if(from.IsSet(V_ALIGN))\r
  97                                 {\r
  98                                         VerticalAlign = from.VerticalAlign;\r
  99                                 }\r
 100                                 if(from.IsSet(WRAP))\r
 101                                 {\r
 102                                         Wrap = from.Wrap;\r
 103                                 }\r
 104                         }\r
 105                 }\r
 106 \r
 107                 public override void MergeWith(Style s)\r
 108                 {\r
 109                         if(s!=null && s is TableItemStyle && !s.IsEmpty)\r
 110                         {\r
 111                                 base.MergeWith(s);\r
 112                                 TableItemStyle with = (TableItemStyle)s;\r
 113                                 if(from.IsSet(H_ALIGN) && !IsSet(H_ALIGN))\r
 114                                 {\r
 115                                         HorizontalAlign = with.HorizontalAlign;\r
 116                                 }\r
 117                                 if(from.IsSet(V_ALIGN) && !IsSet(V_ALIGN))\r
 118                                 {\r
 119                                         VerticalAlign = with.VerticalAlign;\r
 120                                 }\r
 121                                 if(from.IsSet(WRAP) && !IsSet(WRAP))\r
 122                                 {\r
 123                                         Wrap = with.Wrap;\r
 124                                 }\r
 125                         }\r
 126                 }\r
 127 \r
 128                 public override void Reset()\r
 129                 {\r
 130                         if(IsSet(H_ALIGN))\r
 131                                 ViewState.Remove("HorizontalAlign");\r
 132                         if(IsSet(V_ALIGN))\r
 133                                 ViewState.Remove("VerticalAlign");\r
 134                         if(IsSet(WRAP))\r
 135                                 ViewState.Remove("Wrap");\r
 136                         base.Reset();\r
 137                 }\r
 138 \r
 139                 public override void AddAttributesToRender(HtmlTextWriter writer, WebControl owner)\r
 140                 {\r
 141                         base.AddAttributesToRender(writer, owner);\r
 142                         if(!Wrap)\r
 143                         {\r
 144                                 writer.AddAttribute(HtmlTextWriterAttribute.NoWrap, "nowrap");\r
 145                         }\r
 146                         if(HorizontalAlign != HorizontalAlign.NotSet)\r
 147                         {\r
 148                                 writer.AddAttribute(HtmlTextWriterAttribute.Align, TypeDescriptor.GetConverter(typeof(HorizontalAlign)).ConvertToString(HorizontalAlign));\r
 149                         }\r
 150                         if(VerticalAlign != VerticalAlign.NotSet)\r
 151                         {\r
 152                                 writer.AddAttribute(HtmlTextWriterAttribute.Valign, TypeDescriptor.GetConverter(typeof(VerticalAlign)).ConvertToString(VerticalAlign));\r
 153                         }\r
 154                 }\r
 155         }\r
 156 }\r