src/LibCecTray/settings/CECSettingUShort.cs

   1 using System.Globalization;
   2 using System.Windows.Forms;
   3
   4 namespace LibCECTray.settings
   5 {
   6   /// <summary>
   7   /// A setting of type ushort that can be persisted in the registry
   8   /// </summary>
   9   class CECSettingUShort : CECSettingString
  10   {
  11     public CECSettingUShort(string keyName, string friendlyName, ushort defaultValue, SettingChangedHandler changedHandler) :
  12       base(CECSettingType.UShort, keyName, friendlyName, string.Format("{0,4:X}", defaultValue), changedHandler)
  13     {
  14     }
  15
  16     public new ushort Value
  17     {
  18       get
  19       {
  20         ushort iValue;
  21         return base.Value != null && ushort.TryParse(base.Value, NumberStyles.AllowHexSpecifier, null, out iValue) ? iValue : ushort.MinValue;
  22       }
  23       set
  24       {
  25         base.Value = string.Format("{0,4:X}", value);
  26         if (Form != null)
  27           Form.SetControlText(ValueControl, base.Value);
  28       }
  29     }
  30
  31     public new ushort DefaultValue
  32     {
  33       get
  34       {
  35         ushort iValue;
  36         return base.DefaultValue != null && ushort.TryParse(base.DefaultValue, NumberStyles.AllowHexSpecifier, null, out iValue) ? iValue : ushort.MinValue;
  37       }
  38       set { base.DefaultValue = string.Format("{0,4:X}", value); }
  39     }
  40
  41     public new Control ValueControl
  42     {
  43       get
  44       {
  45         if (BaseValueControl == null)
  46         {
  47           TextBox control = new TextBox
  48                               {
  49                                 MaxLength = 4,
  50                                 Size = new System.Drawing.Size(100, 20),
  51                                 Enabled = InitialEnabledValue,
  52                                 Text = string.Format("{0,4:X}", Value)
  53                               };
  54           control.TextChanged += delegate
  55                                    {
  56                                      ushort iValue;
  57                                      if (
  58                                        !ushort.TryParse(control.Text, NumberStyles.AllowHexSpecifier, null,
  59                                                         out iValue))
  60                                        iValue = DefaultValue;
  61                                      Value = iValue;
  62                                    };
  63           BaseValueControl = control;
  64         }
  65         return BaseValueControl;
  66       }
  67     }
  68   }
  69 }