/// <summary>
/// Renders this display object and flushes it to the screen.
/// </summary>
public override void Invalidate()
{
// We must do this because the keyboard's width and height only match the art dimensions.
// The actual size runs the whole screen length.
Render();
Glide.Flush(Parent.X + X, Parent.Y + Y, Glide.LCD.Width, Height);
}
/// <summary>
/// Handles the touch move event.
/// </summary>
/// <param name="e">Touch event arguments.</param>
/// <returns>Touch event arguments.</returns>
public override TouchEventArgs OnTouchMove(TouchEventArgs e)
{
// The pressed state only triggers when touches occur within this UI element's boundaries.
// This check guarantees whether we need to process move events or not.
if (!_pressed)
{
return(e);
}
if (!_moving)
{
if (_ignoredTouchMoves < _maxIgnoredTouchMoves)
{
_ignoredTouchMoves++;
}
else
{
_moving = true;
}
}
else
{
int dragDistance = e.Point.Y - _lastPressY;
_listY = _lastListY - dragDistance;
_listY = GlideUtils.Math.MinMax(_listY, 0, _listMaxY);
Graphics.DrawImage(X, Y, _bitmap, 0, _listY, Width, Height);
Glide.Flush(this);
}
e.StopPropagation();
return(e);
}
/// <summary>
/// Renders and flushes the specified key within the current view.
/// </summary>
/// <param name="index"></param>
public void DrawKeyDown(int index)
{
if (index > -1 && index < _keyValues.Length)
{
Rectangle keyCoord = _keyCoords[index];
Parent.Graphics.DrawRectangle(0, 0, keyCoord.X, keyCoord.Y, keyCoord.Width, keyCoord.Height, 0, 0, 0, 0, 0, 0, 0, 0, 100);
Glide.Flush(keyCoord);
}
else
{
string currentView = String.Empty;
switch (_view)
{
case View.Letters:
currentView = "Letters";
break;
case View.Numbers:
currentView = "Numbers";
break;
case View.Symbols:
currentView = "Symbols";
break;
}
throw new ArgumentOutOfRangeException("index", "Index does not exist within the " + currentView + " view.");
}
}
/// <summary>
/// Renders this display object and flushes it to the screen.
/// </summary>
public virtual void Invalidate()
{
Render();
Glide.Flush(this);
}