public static int[] GetRowTerminators(KeyboardLayoutType layout)
{
// First five rows are the hashes of the terminator keys
// (Backspace, Enter, R Shift, R Ctrl for Euro layout)
switch (layout)
{
default: // includes case KeyboardLayoutType.US:
return(new [] {
KeyHasher.GetHashFromKeyData(14, 0),
KeyHasher.GetHashFromKeyData(43, 0),
KeyHasher.GetHashFromKeyData(28, 0),
KeyHasher.GetHashFromKeyData(54, 224),
KeyHasher.GetHashFromKeyData(29, 224)
});
case KeyboardLayoutType.Punjabi:
case KeyboardLayoutType.European:
return(new [] {
KeyHasher.GetHashFromKeyData(14, 0),
KeyHasher.GetHashFromKeyData(28, 0),
99999,
KeyHasher.GetHashFromKeyData(54, 224),
KeyHasher.GetHashFromKeyData(29, 224)
});
}
}
private static Bitmap WriteCaption(Bitmap bmp, int scancode, int extended, Color fontColour)
{
string caption = AppController.GetKeyName(scancode, extended) ?? String.Format("SC: {0} EX: {1}", scancode, extended);
// Blank keys.
if (String.IsNullOrEmpty(caption))
{
return(bmp);
}
bool overlong = false;
bool localizable = false;
int hash = KeyHasher.GetHashFromKeyData(scancode, extended);
if (AppController.IsOverlongKey(hash))
{
overlong = true;
}
if (AppController.IsLocalizableKey(hash))
{
localizable = true;
}
return(WriteCaption(bmp, caption, overlong, localizable, fontColour));
}
public Dictionary <string, int> GetGroupMembers(string groupname, int threshold)
{
// Enumerate group.
string queryExpression;
if (groupname == AllKeysGroupName)
{
queryExpression = @"/KeycodeData/keycodes[group!='Unmappable Keys']";
}
else if (groupname == _commonlyUsedKeysGroupName)
{
queryExpression = @"/KeycodeData/keycodes[useful>='2'" + "]";
}
else
{
queryExpression = @"/KeycodeData/keycodes[group='" + groupname + "' and useful>='" + threshold.ToString(System.Globalization.CultureInfo.InvariantCulture.NumberFormat) + "']";
}
XPathNodeIterator iterator;
iterator = (XPathNodeIterator)_navigator.Select(queryExpression);
// Gives us a bunch of keycode nodes.
// Given the scancode / extended from each node, ask for the name from the current layout.
int scancode, extended;
Dictionary <string, int> dir = new Dictionary <string, int>(iterator.Count);
foreach (XPathNavigator node in iterator)
{
scancode = Int32.Parse(GetElementValue("sc", node), CultureInfo.InvariantCulture.NumberFormat);
extended = Int32.Parse(GetElementValue("ex", node), CultureInfo.InvariantCulture.NumberFormat);
string name = AppController.GetKeyName(scancode, extended);
if (dir.ContainsKey(name)) // ArgumentException results when trying to add duplicate key..
{
Console.WriteLine("Duplicate name error: Name {0} Existing Scancode : {1} Scancode: {2}", name, dir[name], scancode);
}
else
{
dir.Add(name, KeyHasher.GetHashFromKeyData(scancode, extended));
}
}
return(dir);
}
private List <int> GetKeys(bool localizable)
{
string expression = @"/KeycodeData/keycodes[localize = '" + (localizable ? "true" : "false") + "']";
XPathNodeIterator iterator = (XPathNodeIterator)_navigator.Select(expression);
List <int> keys = new List <int>(iterator.Count);
for (int i = 0; i < iterator.Count; i++)
{
iterator.MoveNext();
int scancode = Int32.Parse(GetElementValue("sc", iterator.Current), CultureInfo.InvariantCulture.NumberFormat);
int extended = Int32.Parse(GetElementValue("ex", iterator.Current), CultureInfo.InvariantCulture.NumberFormat);
keys.Add(KeyHasher.GetHashFromKeyData(scancode, extended));
}
return(keys);
}
public string GetKeyNameFromCode(int code)
{
int scancode = KeyHasher.GetScancodeFromHash(code);
int extended = KeyHasher.GetExtendedFromHash(code);
string expression = @"/KeycodeData/keycodes[sc = '" + scancode.ToString(CultureInfo.InvariantCulture.NumberFormat) + "' and ex = '" + extended.ToString(CultureInfo.InvariantCulture.NumberFormat) + "'] ";
XPathNodeIterator iterator = (XPathNodeIterator)_navigator.Select(expression);
string name = String.Empty;
if (iterator.Count == 1)
{
iterator.MoveNext();
name = GetElementValue("name", iterator.Current);
}
return(name);
}
public static string GetKeyName(int scancode, int extended)
{
// Look up the values in the current localized layout.
if (scancode == 0 && extended == 0)
{
return("Disabled");
}
if (scancode == -1 && extended == -1)
{
return("");
}
int hash = KeyHasher.GetHashFromKeyData(scancode, extended);
if (_currentLayout.ContainsKey(hash))
{
return(_currentLayout.GetKeyName(hash));
}
Console.WriteLine("Unknown key: sc {0} ex {1}", scancode, extended);
return("Unknown");
}
private void GetLocalizableKeyNames()
{
_localizableKeyNames.Clear();
foreach (int hash in _localizableKeys)
{
// None of the localizable names need the extended bit.
int scancode = KeyHasher.GetScancodeFromHash(hash);
// Need to track if a localizable key is a symbol - shifter-symbol
// combination but it's length is not 3 - i.e. instead of 1 and !
// it is Qaf and RehYehAlefLam (as on the Farsi keyboard)
bool overlong = false;
string name = KeyboardHelper.GetKeyName(scancode, ref overlong);
_nonLocalizableKeyNames.Add(hash, name);
if (overlong)
{
// Console.WriteLine("Adding overlong key: code {0} name length: {1} name: {2}", hash, name.Length, name);
_overlongkeys.Add(hash);
}
}
}
public override int GetHashCode()
{
return(KeyHasher.GetHashFromKey(From) * 31 + KeyHasher.GetHashFromKey(To));
}
// override object.GetHashCode
public override int GetHashCode()
{
return(KeyHasher.GetHashFromKeyData(Scancode, Extended));
}
