/// <summary>
/// The action to be taken when a button on the T9 grid is pressed.
/// </summary>
/// <param name="obj">The parameter passed into the command</param>
public void ButtonClick(object obj)
{
if (obj is ActionEnum)
{
ActionEnum enumValue = (ActionEnum)obj;
switch (enumValue)
{
case ActionEnum.Backspace:
if (!PredictiveMode && TypedText.Length > 0)
{
// Delete a character if there are characters to delete
if (_keyTimer.Enabled)
{
TempText = String.Empty;
_keyTimer.Enabled = false;
}
else
{
TypedText = TypedText.Substring(0, TypedText.Length - 1);
}
}
else if (PredictiveMode)
{
// Is there temporary text?
if (TempText.Length > 0)
{
// Erase the last regex and get a new word
_predictiveHandler.DropLastRegex();
if (_predictiveHandler.Regex.Length > 0)
{
TempText = _predictiveHandler.NextMatch();
}
else
{
TempText = String.Empty;
}
}
else
{
if (TypedText[TypedText.Length - 1] == ' ')
{
// Delete the last word
TypedText = TypedText.TrimEnd();
int endOfLastWord = TypedText.LastIndexOf(' ');
TypedText = TypedText.Substring(0, endOfLastWord + 1);
}
}
}
break;
case ActionEnum.InsertSpace:
if (PredictiveMode)
{
// Append the temporary text and a space
AppendTempText();
TypedText += " ";
// Clear the regex
_predictiveHandler.Regex = null;
}
else
{
// Insert a space, clear out the last key stuff
AppendTempText();
TypedText += " ";
_lastPressedIndex = 0;
_lastPressedKey = null;
}
break;
case ActionEnum.NextWord:
// This key only does something if we're in predictive mode
if (PredictiveMode)
{
// Grab the next matching word
TempText = _predictiveHandler.NextMatch();
}
break;
}
}
else
{
if (PredictiveMode)
{
// Process the predictive key press
PredictiveButtonPress(obj as string);
}
else
{
// Process the non-predictive keypress
NonPredictiveButtonPress(obj as string);
}
}
}
private void UpdateText()
{
var keyboard = Keyboard.GetState();
int shiftDifference = 0;
if (keyboard.IsKeyDown(Keys.LeftShift))
{
shiftDifference = 32;
}
if (keyboard.IsKeyDown(Keys.Q))
{
this.TextInField += (char)('q' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.W))
{
this.TextInField += (char)('w' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.E))
{
this.TextInField += (char)('e' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.R))
{
this.TextInField += (char)('r' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.T))
{
this.TextInField += (char)('t' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.Y))
{
this.TextInField += (char)('y' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.U))
{
this.TextInField += (char)('u' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.I))
{
this.TextInField += (char)('i' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.O))
{
this.TextInField += (char)('o' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.P))
{
this.TextInField += (char)('p' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.A))
{
this.TextInField += (char)('a' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.S))
{
this.TextInField += (char)('s' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.D))
{
this.TextInField += (char)('d' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.F))
{
this.TextInField += (char)('f' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.G))
{
this.TextInField += (char)('g' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.H))
{
this.TextInField += (char)('h' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.J))
{
this.TextInField += (char)('j' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.K))
{
this.TextInField += (char)('k' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.L))
{
this.TextInField += (char)('l' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.Z))
{
this.TextInField += (char)('z' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.X))
{
this.TextInField += (char)('x' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.C))
{
this.TextInField += (char)('c' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.V))
{
this.TextInField += (char)('v' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.B))
{
this.TextInField += (char)('b' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.N))
{
this.TextInField += (char)('n' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.M))
{
this.TextInField += (char)('m' - shiftDifference);
}
if (keyboard.IsKeyDown(Keys.Back) && TextInField.Length > 0)
{
this.TextInField = TextInField.Substring(0, TextInField.Length - 1);
TypedText.TrimEnd();
if (TypedText.Length > TextInField.Length)
{
this.TypedText = TextInField;
this.TypedTextLength = TextInField.Length;
}
}
}