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

   1 //
   2 // System.Web.UI.WebControls.TableItemStyle.cs
   3 //
   4 // Author:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System.ComponentModel;
  30 using System.Globalization;
  31 using System.Security.Permissions;
  32 using System.Web.UI;
  33
  34 namespace System.Web.UI.WebControls {
  35
  36         [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  37         [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  38         public class TableItemStyle : Style {
  39
  40                 [Flags]
  41                 enum TableItemStyles
  42                 {
  43                         HorizontalAlign = 0x00010000,
  44                         VerticalAlign = 0x00020000,
  45                         Wrap = 0x00040000,
  46                 }
  47
  48                 public TableItemStyle ()
  49                 {
  50                 }
  51
  52                 public TableItemStyle (StateBag bag)
  53                         : base (bag)
  54                 {
  55                 }
  56
  57 #if ONLY_1_1
  58                 [Bindable (true)]
  59 #endif
  60                 [DefaultValue (HorizontalAlign.NotSet)]
  61                 [NotifyParentProperty (true)]
  62                 [WebSysDescription ("")]
  63                 [WebCategory("Layout")]
  64                 public virtual HorizontalAlign HorizontalAlign {
  65                         get {
  66                                 if (!CheckBit ((int) TableItemStyles.HorizontalAlign))
  67                                         return HorizontalAlign.NotSet;
  68                                 return (HorizontalAlign) ViewState ["HorizontalAlign"];
  69                         }
  70                         set {
  71                                 // avoid reflection
  72                                 if ((value < HorizontalAlign.NotSet) || (value > HorizontalAlign.Justify)) {
  73                                         // LAMESPEC: documented as ArgumentException
  74                                         throw new ArgumentOutOfRangeException (Locale.GetText ("Invalid HorizontalAlign value."));
  75                                 }
  76                                 ViewState ["HorizontalAlign"] = value;
  77                                 SetBit ((int) TableItemStyles.HorizontalAlign);
  78                         }
  79                 }
  80
  81 #if ONLY_1_1
  82                 [Bindable (true)]
  83 #endif
  84                 [DefaultValue (VerticalAlign.NotSet)]
  85                 [NotifyParentProperty (true)]
  86                 [WebSysDescription ("")]
  87                 [WebCategory("Layout")]
  88                 public virtual VerticalAlign VerticalAlign {
  89                         get {
  90                                 if (!CheckBit ((int) TableItemStyles.VerticalAlign))
  91                                         return VerticalAlign.NotSet;
  92                                 return (VerticalAlign) ViewState ["VerticalAlign"];
  93                         }
  94                         set {
  95                                 // avoid reflection
  96                                 if ((value < VerticalAlign.NotSet) || (value > VerticalAlign.Bottom)) {
  97                                         // LAMESPEC: documented as ArgumentException
  98                                         throw new ArgumentOutOfRangeException (Locale.GetText ("Invalid VerticalAlign value."));
  99                                 }
 100                                 ViewState ["VerticalAlign"] = value;
 101                                 SetBit ((int) TableItemStyles.VerticalAlign);
 102                         }
 103                 }
 104
 105 #if ONLY_1_1
 106                 [Bindable (true)]
 107 #endif
 108                 [DefaultValue (true)]
 109                 [NotifyParentProperty (true)]
 110                 [WebSysDescription ("")]
 111                 [WebCategory("Layout")]
 112                 public virtual bool Wrap {
 113                         get {
 114                                 if (!CheckBit ((int) TableItemStyles.Wrap))
 115                                         return true;
 116                                 return (bool) ViewState ["Wrap"];
 117                         }
 118                         set {
 119                                 ViewState ["Wrap"] = value;
 120                                 SetBit ((int) TableItemStyles.Wrap);
 121                         }
 122                 }
 123
 124
 125                 public override void AddAttributesToRender (HtmlTextWriter writer, WebControl owner)
 126                 {
 127                         base.AddAttributesToRender (writer, owner);
 128                         if (writer == null)
 129                                 return;
 130
 131                         // note: avoid ToString on the enum
 132                         switch (HorizontalAlign) {
 133                         case HorizontalAlign.Left:
 134                                 writer.AddAttribute (HtmlTextWriterAttribute.Align, "left");
 135                                 break;
 136                         case HorizontalAlign.Center:
 137                                 writer.AddAttribute (HtmlTextWriterAttribute.Align, "center");
 138                                 break;
 139                         case HorizontalAlign.Right:
 140                                 writer.AddAttribute (HtmlTextWriterAttribute.Align, "right");
 141                                 break;
 142                         case HorizontalAlign.Justify:
 143                                 writer.AddAttribute (HtmlTextWriterAttribute.Align, "justify");
 144                                 break;
 145                         }
 146
 147                         // note: avoid ToString on the enum
 148                         switch (VerticalAlign) {
 149                         case VerticalAlign.Top:
 150                                 writer.AddAttribute (HtmlTextWriterAttribute.Valign, "top");
 151                                 break;
 152                         case VerticalAlign.Middle:
 153                                 writer.AddAttribute (HtmlTextWriterAttribute.Valign, "middle");
 154                                 break;
 155                         case VerticalAlign.Bottom:
 156                                 writer.AddAttribute (HtmlTextWriterAttribute.Valign, "bottom");
 157                                 break;
 158                         }
 159
 160                         if (!Wrap) {
 161 #if NET_2_0
 162                                 writer.AddStyleAttribute (HtmlTextWriterStyle.WhiteSpace, "nowrap");
 163 #else
 164                                 writer.AddAttribute (HtmlTextWriterAttribute.Nowrap, "nowrap");
 165 #endif
 166                         }
 167                 }
 168
 169                 private void Copy (string name, TableItemStyles s, Style source)
 170                 {
 171                         if (source.CheckBit((int) s)) {
 172                                 object o = source.ViewState [name];
 173                                 if (o != null) {
 174                                         ViewState [name] = o;
 175                                         SetBit ((int) s);
 176                                 }
 177                         }
 178                 }
 179
 180                 public override void CopyFrom (Style s)
 181                 {
 182                         base.CopyFrom (s);
 183                         if (s != null && !s.IsEmpty) {
 184                                 Copy ("HorizontalAlign", TableItemStyles.HorizontalAlign, s);
 185                                 Copy ("VerticalAlign", TableItemStyles.VerticalAlign, s);
 186                                 Copy ("Wrap", TableItemStyles.Wrap, s);
 187                         }
 188                 }
 189
 190                 private void Merge (string name, TableItemStyles s, Style source)
 191                 {
 192                         if ((!CheckBit ((int) s)) && (source.CheckBit ((int) s))) {
 193                                 object o = source.ViewState [name];
 194                                 if (o != null) {
 195                                         ViewState [name] = o;
 196                                         SetBit ((int) s);
 197                                 }
 198                         }
 199                 }
 200
 201                 public override void MergeWith (Style s)
 202                 {
 203                         // if we're empty then it's like a copy
 204                         if (IsEmpty) {
 205                                 CopyFrom (s);
 206                         } else {
 207                                 base.MergeWith (s);
 208                                 if (s != null) {
 209                                         Merge ("HorizontalAlign", TableItemStyles.HorizontalAlign, s);
 210                                         Merge ("VerticalAlign", TableItemStyles.VerticalAlign, s);
 211                                         Merge ("Wrap", TableItemStyles.Wrap, s);
 212                                 }
 213                         }
 214                 }
 215
 216                 public override void Reset ()
 217                 {
 218                         if (CheckBit ((int) TableItemStyles.HorizontalAlign))
 219                                 ViewState.Remove ("HorizontalAlign");
 220                         if (CheckBit ((int) TableItemStyles.VerticalAlign))
 221                                 ViewState.Remove ("VerticalAlign");
 222                         if (CheckBit ((int) TableItemStyles.Wrap))
 223                                 ViewState.Remove ("Wrap");
 224                         // call base at the end because "styles" will reset there
 225                         base.Reset ();
 226                 }
 227
 228                 internal override void LoadViewStateInternal()
 229                 {
 230                         if (viewstate ["HorizontalAlign"] != null) {
 231                                 SetBit ((int) TableItemStyles.HorizontalAlign);
 232                         }
 233                         if (viewstate ["VerticalAlign"] != null) {
 234                                 SetBit ((int) TableItemStyles.VerticalAlign);
 235                         }
 236                         if (viewstate["Wrap"] != null) {
 237                                 SetBit ((int) TableItemStyles.Wrap);
 238                         }
 239
 240                         base.LoadViewStateInternal();
 241                 }
 242         }
 243 }