bool StringToAccelerator(string shortcut)
{
bool parsed = true;
if (!IsStringASCII(shortcut))
{
throw new NotSupportedException("The accelerator string can only contain ASCII characters");
}
AcceleratorModifiers modifiers = 0;
string code = string.Empty;
bool shifted = false;
var tokens = shortcut.Split(separator, StringSplitOptions.RemoveEmptyEntries);
foreach (var token in tokens)
{
AcceleratorModifiers modifier = 0;
if (Enum.TryParse(token, true, out modifier))
{
modifiers |= modifier;
}
else
{
if (token.Length == 1)
{
(code, shifted) = KeyboardUtilities.KeyboardCodeFromCharCode(token[0]);
}
else
{
AcceleratorKeys c;
if (Enum.TryParse(token, true, out c))
{
code = token;
}
}
}
}
if (code == string.Empty)
{
throw new ArgumentException($"Argument: {nameof(shortcut)} does not contain a valid key.");
}
accelerator = shortcut;
return(parsed);
}
private Accelerator(string key, params AcceleratorModifiers[] modifiers)
{
var code = key;
var shift = false;
if (key.Length == 1)
{
(code, shift) = KeyboardUtilities.KeyboardCodeFromCharCode(key[0]);
}
AcceleratorModifiers mods = (shift) ? AcceleratorModifiers.Shift : 0;
foreach (var mod in modifiers)
{
mods |= mod;
}
var accel = new StringBuilder(string.Join("+", mods.ToString().Split(',').Select(t => t.Trim()).ToArray()));
accel.Append($"+{code}");
accelerator = accel.ToString();
}