New test.
[mono.git] / mcs / class / System.Web / System.Web.UI.WebControls / Unit.cs
index a85749450707f1e01c879450cddf832ee1b9e8e8..830f6477b099fecb4e596f56ec1ad62184d623be 100644 (file)
-/**\r
- * Namespace: System.Web.UI.WebControls\r
- * Struct:    Unit\r
- *\r
- * Author:  Gaurav Vaish\r
- * Maintainer: gvaish@iitk.ac.in\r
- * Contact: <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>\r
- * Implementation: yes\r
- * Status:  100%\r
- *\r
- * (C) Gaurav Vaish (2001)\r
- */\r
-\r
-using System;\r
-using System.Globalization;\r
-using System.ComponentModel;\r
-using System.Web;\r
-using System.Web.UI;\r
-\r
-namespace System.Web.UI.WebControls\r
-{\r
-       public struct Unit\r
-       {\r
-               public static readonly Unit Empty = new Unit();\r
-\r
-               private static int Min = -32768;\r
-               private static int Max = +32767;\r
-\r
-               private UnitType type;\r
-               private double   val;\r
-\r
-               public static Unit Parse(string s)\r
-               {\r
-                       return new Unit(s);\r
-               }\r
-\r
-               public static Unit Parse(string s, CultureInfo culture)\r
-               {\r
-                       return new Unit(s, culture);\r
-               }\r
-\r
-               public static Unit Percentage(double n)\r
-               {\r
-                       return new Unit(n);\r
-               }\r
-\r
-               public static Unit Pixel(int n)\r
-               {\r
-                       return new Unit(n);\r
-               }\r
-\r
-               public static Unit Point(int n)\r
-               {\r
-                       return new Unit(n, UnitType.Point);\r
-               }\r
-\r
-               public static bool operator ==(Unit left, Unit right)\r
-               {\r
-                       return (left.type == right.type && left.val == right.val);\r
-               }\r
-\r
-               public static bool operator !=(Unit left, Unit right)\r
-               {\r
-                       return !(left == right);\r
-               }\r
-\r
-               public static implicit operator Unit(int n)\r
-               {\r
-                       return new Unit(n);\r
-               }\r
-\r
-               public Unit(double value)\r
-               {\r
-                       if(value < Min || value > Max)\r
-                       {\r
-                               throw new ArgumentOutOfRangeException();\r
-                       }\r
-                       val = value;\r
-                       type = UnitType.Pixel;\r
-               }\r
-\r
-               public Unit(int value)\r
-               {\r
-                       if(value < Min || value > Max)\r
-                       {\r
-                               throw new ArgumentOutOfRangeException();\r
-                       }\r
-                       val = value;\r
-                       type = UnitType.Pixel;\r
-               }\r
-\r
-               public Unit(string value): this(value, CultureInfo.CurrentCulture)\r
-               {\r
-               }\r
-\r
-               public Unit(double value, UnitType type)\r
-               {\r
-                       if(value < Min || value > Max)\r
-                       {\r
-                               throw new ArgumentOutOfRangeException();\r
-                       }\r
-                       val = value;\r
-                       this.type = type;\r
-               }\r
-\r
-               public Unit(string value, CultureInfo culture): this(value, culture, UnitType.Pixel)\r
-               {\r
-               }\r
-\r
-               internal Unit(string value, CultureInfo culture, UnitType defType)\r
-               {\r
-                       this.val = 0;\r
-                       this.type = UnitType.Pixel;\r
-                       if(value == null || value.Length == 0)\r
-                       {\r
-                               this.val = 0;\r
-                               this.type = UnitType.Pixel;\r
-                       }\r
-                       if(culture == null)\r
-                               culture = CultureInfo.CurrentCulture;\r
-                       string strVal = value.Trim().ToLower();\r
-                       char c;\r
-                       int start = -1;\r
-                       //int current = 0;\r
-                       for(int i = 0; i < strVal.Length; i++)\r
-                       {\r
-                               c = strVal[i];\r
-                               if( (c >= '0' && c <= '9') || (c == '-' || c == '.' || c == ',') )\r
-                                       start = i;\r
-                       }\r
-                       if(start == -1)\r
-                               throw new ArgumentException();\r
-                       if( (start + 1) < strVal.Length)\r
-                       {\r
-                               this.type = (UnitType)GetTypeFromString(strVal.Substring(start + 1).Trim());\r
-                               this.val  = 0;\r
-                       } else\r
-                       {\r
-                               this.type = defType;\r
-                               this.val  = 0;\r
-                       }\r
-                       try\r
-                       {\r
-                               if(type == UnitType.Pixel)\r
-                               {\r
-                                       val = (double)((new Int32Converter()).ConvertFromString(null, culture, strVal.Substring(0, start + 1)));\r
-                               } else\r
-                               {\r
-                                       val = (double)((new SingleConverter()).ConvertFromString(null, culture, strVal.Substring(0, start + 1)));\r
-                               }\r
-                       } catch(Exception)\r
-                       {\r
-                               throw new ArgumentOutOfRangeException();\r
-                       }\r
-                       if(val < Min || val > Max)\r
-                               throw new ArgumentOutOfRangeException();\r
-               }\r
-\r
-               private UnitType GetTypeFromString(string s)\r
-               {\r
-                       if(s == null || s.Length == 0)\r
-                               return UnitType.Pixel;\r
-                       s = s.ToLower().Trim();\r
-                       string[] uTypes = {\r
-                               "px",\r
-                               "pt",\r
-                               "pc",\r
-                               "in",\r
-                               "mm",\r
-                               "cm",\r
-                               "%",\r
-                               "em",\r
-                               "ex"\r
-                       };\r
-                       int i = 0;\r
-                       foreach(string cType in uTypes)\r
-                       {\r
-                               if(s == cType)\r
-                                       return (UnitType)Enum.ToObject(typeof(UnitType), (i + 1));\r
-                               i++;\r
-                       }\r
-                       return UnitType.Pixel;\r
-               }\r
-\r
-               private string GetStringFromPixel(UnitType ut)\r
-               {\r
-                       string[] uTypes = {\r
-                               "px",\r
-                               "pt",\r
-                               "pc",\r
-                               "in",\r
-                               "mm",\r
-                               "cm",\r
-                               "%",\r
-                               "em",\r
-                               "ex"\r
-                       };\r
-                       if( !Enum.IsDefined(typeof(UnitType), ut) )\r
-                               return "px";\r
-                       return uTypes[(int)ut - 1];\r
-               }\r
-\r
-               public bool IsEmpty\r
-               {\r
-                       get\r
-                       {\r
-                               return (type == 0);\r
-                       }\r
-               }\r
-\r
-               public UnitType Type\r
-               {\r
-                       get\r
-                       {\r
-                               if(IsEmpty)\r
-                                       return UnitType.Pixel;\r
-                               return type;\r
-                       }\r
-               }\r
-\r
-               public double Value\r
-               {\r
-                       get\r
-                       {\r
-                               return val;\r
-                       }\r
-               }\r
-\r
-               public override bool Equals(object obj)\r
-               {\r
-                       if(obj != null && obj is Unit)\r
-                       {\r
-                               Unit that = (Unit)obj;\r
-                               return ( this.type == that.type && this.val == that.val );\r
-                       }\r
-                       return false;\r
-               }\r
-\r
-               public override int GetHashCode()\r
-               {\r
-                       return ( (type.GetHashCode() << 2) | (val.GetHashCode()) );\r
-               }\r
-\r
-               public override string ToString()\r
-               {\r
-                       if(IsEmpty)\r
-                               return String.Empty;\r
-                       return ( val.ToString() + GetStringFromPixel(type) );\r
-               }\r
-\r
-               public string ToString(CultureInfo culture)\r
-               {\r
-                       if(IsEmpty)\r
-                               return String.Empty;\r
-                       return ( val.ToString(culture) + GetStringFromPixel(type) );\r
-               }\r
-       }\r
-}\r
+//
+// System.Web.UI.WebControls.Unit.cs
+//
+// Authors:
+//   Miguel de Icaza (miguel@novell.com)
+//   Ben Maurer (bmaurer@ximian.com).
+//
+// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System.Globalization;
+using System.ComponentModel;
+using System.Security.Permissions;
+
+namespace System.Web.UI.WebControls {
+
+       [TypeConverter(typeof (UnitConverter))]
+#if NET_2_0
+       [Serializable]
+#else
+       // CAS
+       [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
+#endif
+       public struct Unit {
+               UnitType type;
+               double value;
+               public static readonly Unit Empty;
+               
+               public Unit (double value, UnitType type)
+               {
+                       if (value < -32768 || value > 32767)
+                               throw new ArgumentOutOfRangeException ("value");
+
+                       this.type = type;
+                       if (type == UnitType.Pixel)
+                               this.value = (int) value;
+                       else
+                               this.value = value;
+               }
+
+               public Unit (double value) : this (value, UnitType.Pixel)
+               {
+               }
+               
+               public Unit (int value) : this ((double) value, UnitType.Pixel)
+               {
+               }
+
+               internal Unit (string value, char sep)
+               {
+                       if (value == null || value == String.Empty){
+                               type = (UnitType) 0;
+                               this.value = 0.0;
+                               return;
+                       }
+
+                       int count = value.Length;
+                       int i = 0;
+                       int sign = 1;
+                       
+                       while (i < count && Char.IsWhiteSpace (value [i]))
+                               i++;
+                       if (value [i] == '-'){
+                               sign = -1;
+                               i++;
+                               if (!Char.IsDigit (value [i]))
+                                       throw new ArgumentOutOfRangeException ("value");
+                       } else if (!Char.IsDigit (value [i])) {
+                               throw new FormatException ();
+                       }
+
+                       double dv = 0;
+                       for (; i < count; i++){
+                               char c = value [i];
+                               if (!Char.IsDigit (c))
+                                       break;
+                               dv = dv * 10 + ((int) c) - ((int) '0');
+                       }
+                       dv *= sign;
+                       this.value = dv;
+                       dv = 0;
+                       if (i < count && value [i] == sep){
+                               i++;
+                               double factor = .1;
+                               for (; i < count; i++){
+                                       char c = value [i];
+                                       if (!Char.IsDigit (c))
+                                               break;
+                                       dv = dv + (((int) c) - ((int) '0')) * factor;
+                                       factor = factor *.1;
+                               }
+                               this.value += dv;
+                       }
+                       
+                       while (i < count && Char.IsWhiteSpace (value [i]))
+                               i++;
+
+                       if (i == count){
+                               type = UnitType.Pixel;
+                               return;
+                       }
+
+                       if (value [i] == '%'){
+                               type = UnitType.Percentage;
+                               i++;
+                               while (i < count && Char.IsWhiteSpace (value [i]))
+                                       i++;
+                               if (i != count)
+                                       throw new ArgumentOutOfRangeException ("value");
+                               return;
+                       }
+                       
+                       int j = i;
+                       while (j < count && Char.IsLetter (value [j]))
+                               j++;
+                       string code = value.Substring (i, j-i);
+                       switch (code.ToLower (CultureInfo.InvariantCulture)){
+                       case "in": type = UnitType.Inch; break;
+                       case "cm": type = UnitType.Cm; break;
+                       case "mm": type = UnitType.Mm; break;
+                       case "pt": type = UnitType.Point; break;
+                       case "pc": type = UnitType.Pica; break;
+                       case "em": type = UnitType.Em; break;
+                       case "ex": type = UnitType.Ex; break;
+                       case "px":
+                               type = UnitType.Pixel;
+                               if (dv != 0)
+                                       throw new FormatException ("Pixel units do not allow floating point values");
+                               break;
+                       default:
+                               throw new ArgumentOutOfRangeException ("value");
+                       }
+
+                       while (j < count && Char.IsWhiteSpace (value [j]))
+                               j++;
+                       if (j != count)
+                               throw new ArgumentOutOfRangeException ("value");
+               }
+
+               
+               public Unit (string value) : this (value, '.')
+               {
+               }
+
+               public Unit (string value, CultureInfo culture) : this (value, culture.NumberFormat.NumberDecimalSeparator [0])
+               {
+               }
+
+               internal Unit (string value, CultureInfo culture, UnitType t) : this (value, '.')
+               {
+               }
+               
+               public bool IsEmpty {
+                       get {
+                               return type == 0;
+                       }
+               }
+
+               public UnitType Type {
+                       get {
+                               if (type == 0)
+                                       return UnitType.Pixel;
+                               return type;
+                       }
+               }
+
+               public double Value {
+                       get {
+                               return value;
+                       }
+               }
+               
+               public static Unit Parse (string s)
+               {
+                       return new Unit (s);
+               }
+
+               public static System.Web.UI.WebControls.Unit Parse (string s, System.Globalization.CultureInfo culture)
+               {
+                       return new Unit (s, culture);
+               }
+               
+
+               public static Unit Percentage (double n)
+               {
+                       return new Unit (n, UnitType.Percentage);
+               }
+               
+               public static Unit Pixel (int n)
+               {
+                       return new Unit (n);
+               }
+               
+               public static Unit Point (int n)
+               {
+                       return new Unit (n, UnitType.Point);
+               }
+                               
+               public override bool Equals (object obj)
+               {
+                       if (obj is Unit){
+                               Unit other = (Unit) obj;
+                               return (other.type == type && other.value == value);
+                       }
+                       return false;
+               }
+               
+               public override int GetHashCode ()
+               {
+                       return Type.GetHashCode () ^ Value.GetHashCode ();
+               }
+               
+               public static bool operator == (Unit left, Unit right)
+               {
+                       return left.Type == right.Type && left.Value == right.Value;
+               }
+
+               public static bool operator != (Unit left, Unit right)
+               {
+                       return left.Type != right.Type || left.Value != right.Value;
+               }
+               
+               public static implicit operator Unit (int n)
+               {
+                       return new Unit (n);
+               }
+
+               string GetExtension ()
+               {
+                       switch (type){
+                       case UnitType.Pixel: return "px";
+                       case UnitType.Point: return "pt";
+                       case UnitType.Pica: return "pc";
+                       case UnitType.Inch: return "in";
+                       case UnitType.Mm: return "mm";
+                       case UnitType.Cm: return "cm";
+                       case UnitType.Percentage: return "%";
+                       case UnitType.Em: return "em";
+                       case UnitType.Ex: return "ex";
+                       default: return "";
+                       }
+               }
+
+               public string ToString (CultureInfo culture)
+               {
+                       if (type == 0)
+                               return "";
+                       
+                       string ex = GetExtension ();
+                       
+                       return String.Format (culture, "{0}{1}", value, ex);
+               }
+                       
+               public override string ToString ()
+               {
+                       return ToString (CultureInfo.InvariantCulture);
+               }
+
+#if NET_2_0
+               public string ToString (IFormatProvider provider)
+               {
+                       if (type == 0)
+                               return "";
+
+                       string ex = GetExtension ();
+
+                       return String.Format (provider, "{0}{1}", value, ex);
+               }
+#endif
+       }
+
+}