private void OnMouseMove(object sender, MouseEventArgs e)
{
if (!_isMouseButtonDown)
{
return;
}
var currentDpiScaleFactor = SystemHelper.GetCurrentDPIScaleFactor();
var position = e.GetPosition(this);
var screen = PointToScreen(position);
var x = _mouseDownPosition.X - position.X;
var y = _mouseDownPosition.Y - position.Y;
if (Math.Sqrt(Math.Pow(x, 2) + Math.Pow(y, 2)) > 1)
{
var actualWidth = _mouseDownPosition.X;
if (_mouseDownPosition.X <= 0)
{
actualWidth = 0;
}
else if (_mouseDownPosition.X >= ActualWidth)
{
actualWidth = _widthBeforeMaximize;
}
if (WindowState == WindowState.Maximized)
{
ToggleWindowState();
Top = (screen.Y - position.Y) / currentDpiScaleFactor;
Left = (screen.X - actualWidth) / currentDpiScaleFactor;
CaptureMouse();
}
_isManualDrag = true;
Top = (screen.Y - _mouseDownPosition.Y) / currentDpiScaleFactor;
Left = (screen.X - actualWidth) / currentDpiScaleFactor;
}
}