public static string Convert(Key key, ModifierKeys modKeys, bool useFriendlyKeyDisplayString)
{
StringBuilder strBuilder = new StringBuilder("[ ");
bool hasModKey = false;
if ((modKeys & ModifierKeys.Shift) != ModifierKeys.None)
{
strBuilder.Append("SHIFT ");
hasModKey = true;
}
if ((modKeys & ModifierKeys.Control) != ModifierKeys.None)
{
strBuilder.Append("CTRL ");
hasModKey = true;
}
if ((modKeys & ModifierKeys.Alt) != ModifierKeys.None)
{
strBuilder.Append("ALT ");
hasModKey = true;
}
if ((modKeys & ModifierKeys.Windows) != ModifierKeys.None)
{
strBuilder.Append("WIN ");
hasModKey = true;
}
if (!hasModKey)
{
strBuilder.Append("NONE ");
}
strBuilder.Append("] ");
strBuilder.Append(key);
char ch = '\0';
if (useFriendlyKeyDisplayString &&
(ch = KeyGestureString.GetDisplayChar(key)) != '\0' &&
(key < Key.A || key > Key.Z) &&
key != Key.Space &&
key != Key.Enter &&
key != Key.Return)
{
strBuilder.Append(" (" + ch + ")");
}
return(strBuilder.ToString());
}
public static KeyGestureString Convert(string str)
{
if (String.IsNullOrEmpty(str))
{
return(null);
}
TypeConverter keyConverter = TypeDescriptor.GetConverter(typeof(Key));
if (keyConverter == null)
{
return(null);
}
int modStart = str.IndexOf("[", StringComparison.OrdinalIgnoreCase);
if (modStart < 0 || modStart >= str.Length - 3)
{
return(null);
}
int modEnd = str.IndexOf("]", StringComparison.OrdinalIgnoreCase);
if (modEnd < 0 || modEnd <= modStart || modEnd >= str.Length - 2)
{
return(null);
}
string modStr = str.Substring(modStart, modEnd - modStart);
bool isModCtrl = modStr.IndexOf("ctrl", StringComparison.OrdinalIgnoreCase) >= 0;
bool isModShift = modStr.IndexOf("shift", StringComparison.OrdinalIgnoreCase) >= 0;
bool isModAlt = modStr.IndexOf("alt", StringComparison.OrdinalIgnoreCase) >= 0;
bool isModWin = modStr.IndexOf("win", StringComparison.OrdinalIgnoreCase) >= 0;
string keyStr = str.Substring(modEnd + 1).Trim();
int spaceIndex = keyStr.IndexOf(" ", StringComparison.OrdinalIgnoreCase);
if (spaceIndex >= 0)
{
keyStr = keyStr.Substring(0, spaceIndex);
}
Key key = Key.None;
try
{
key = (Key)keyConverter.ConvertFromString(keyStr);
}
catch
{
Console.WriteLine(@"!! invalid modifier key string: " + keyStr);
key = Key.None;
}
if (key == Key.None)
{
return(null);
}
ModifierKeys modKey = ModifierKeys.None;
if (isModShift)
{
modKey |= ModifierKeys.Shift;
}
if (isModCtrl)
{
modKey |= ModifierKeys.Control;
}
if (isModAlt)
{
modKey |= ModifierKeys.Alt;
}
if (isModWin)
{
modKey |= ModifierKeys.Windows;
}
if (modKey == ModifierKeys.None)
{
//return null; WORKS for SOME gestures, not all (e.g. F1-F12 work fine, but not alpha keys).
}
try
{
var keyG = new KeyGestureString(key, modKey);
return(keyG);
}
catch
{
Console.WriteLine(@"!! not a valid KeyGesture: " + str);
//Debug.Fail(@"Not a valid KeyGesture: " + str);
}
return(null);
}