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

   1
   2 //
   3 // Permission is hereby granted, free of charge, to any person obtaining
   4 // a copy of this software and associated documentation files (the
   5 // "Software"), to deal in the Software without restriction, including
   6 // without limitation the rights to use, copy, modify, merge, publish,
   7 // distribute, sublicense, and/or sell copies of the Software, and to
   8 // permit persons to whom the Software is furnished to do so, subject to
   9 // the following conditions:
  10 //
  11 // The above copyright notice and this permission notice shall be
  12 // included in all copies or substantial portions of the Software.
  13 //
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  15 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  16 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  17 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  18 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  19 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  20 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  21 //
  22 /**\r
  23  * Namespace: System.Web.UI.WebControls\r
  24  * Class:     FontNamesConverter\r
  25  *\r
  26  * Author:  Gaurav Vaish\r
  27  * Maintainer: gvaish@iitk.ac.in\r
  28  * Contact: <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>\r
  29  * Implementation: yes\r
  30  * Status:  100%\r
  31  *\r
  32  * (C) Gaurav Vaish (2002)\r
  33  */\r
  34 \r
  35 using System;\r
  36 using System.Globalization;\r
  37 using System.ComponentModel;\r
  38 using System.Web;\r
  39 using System.Web.UI;\r
  40 \r
  41 namespace System.Web.UI.WebControls\r
  42 {\r
  43         public class FontNamesConverter : TypeConverter\r
  44         {\r
  45                 public FontNamesConverter(): base()\r
  46                 {\r
  47                 }\r
  48 \r
  49                 public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)\r
  50                 {\r
  51                         return (sourceType == typeof(string));\r
  52                 }\r
  53 \r
  54                 public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)\r
  55                 {\r
  56                         if(value is string)\r
  57                         {\r
  58                                 string fontNames = (string)value;\r
  59                                 if(fontNames.Length == 0)\r
  60                                 {\r
  61                                         return (new string[0]);\r
  62                                 }\r
  63                                 string[] names = fontNames.Split(new char[] { ','});\r
  64                                 for(int i=0; i < names.Length; i++)\r
  65                                 {\r
  66                                         names[i] = names[i].Trim();\r
  67                                 }\r
  68                                 return names;\r
  69                         }\r
  70                         throw GetConvertFromException(value);\r
  71                 }\r
  72 \r
  73                 public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)\r
  74                 {\r
  75                         if(destinationType == typeof(string))\r
  76                         {\r
  77                                 if(value == null || ((string[])value) == null)\r
  78                                         return String.Empty;\r
  79                                 return String.Join(",", (string[])value);\r
  80                         }\r
  81                         throw GetConvertToException(value, destinationType);\r
  82                 }\r
  83         }\r
  84 }\r