/// <summary>
/// This method is called when the tool is active and a keyboard key is pressed
/// and released that is not representable with a regular Unicode chararacter.
/// An example would be the arrow keys.
/// </summary>
protected virtual void OnKeyPress(Keys key)
{
Point dir = Point.Empty;
if (key != lastKey)
{
lastKeyboardMove = DateTime.MinValue;
}
lastKey = key;
switch (key)
{
case Keys.Left:
--dir.X;
break;
case Keys.Right:
++dir.X;
break;
case Keys.Up:
--dir.Y;
break;
case Keys.Down:
++dir.Y;
break;
}
if (!dir.Equals(Point.Empty))
{
long span = DateTime.Now.Ticks - lastKeyboardMove.Ticks;
if ((span * 4) > TimeSpan.TicksPerSecond)
{
keyboardMoveRepeats = 0;
keyboardMoveSpeed = 1;
}
else
{
keyboardMoveRepeats++;
if (keyboardMoveRepeats > 15 && (keyboardMoveRepeats % 4) == 0)
{
keyboardMoveSpeed++;
}
}
lastKeyboardMove = DateTime.Now;
int offset = (int)(Math.Ceiling(DocumentWorkspace.ScaleFactor.Ratio) * (double)keyboardMoveSpeed);
Cursor.Position = new Point(Cursor.Position.X + offset * dir.X, Cursor.Position.Y + offset * dir.Y);
Point location = DocumentWorkspace.PointToScreen(Point.Truncate(DocumentWorkspace.DocumentToClient(PointF.Empty)));
PointF stylusLocF = new PointF((float)Cursor.Position.X - (float)location.X, (float)Cursor.Position.Y - (float)location.Y);
Point stylusLoc = new Point(Cursor.Position.X - location.X, Cursor.Position.Y - location.Y);
stylusLoc = DocumentWorkspace.ScaleFactor.UnscalePoint(stylusLoc);
stylusLocF = DocumentWorkspace.ScaleFactor.UnscalePoint(stylusLocF);
DocumentWorkspace.PerformDocumentMouseMove(new StylusEventArgs(lastButton, 1, stylusLocF.X, stylusLocF.Y, 0, 1.0f));
DocumentWorkspace.PerformDocumentMouseMove(new MouseEventArgs(lastButton, 1, stylusLoc.X, stylusLoc.Y, 0));
}
}
