public void SetCursorPosition(Point value, bool invalidate)
{
if (cursorPosition != value)
{
Point pos = cursorPosition;
cursorPosition = value;
cursorPosition.Restrict(new Rectangle(CurrentPage.Canvas.Size));
if (SelectedTool != null)
{
SelectedTool.OnSetCursorPosition(pos, cursorPosition, invalidate);
}
OnCursorPositionChanged(EventArgs.Empty);
}
}