private void ScrollViewerAdjustableSizeMapMouseMove(object sender, MouseEventArgs e)
        {
            if (m_LastDragPoint.HasValue)
            {
                var posNow = e.GetPosition(ScrollViewerAdjustableSizeMap);

                var dX = posNow.X - m_LastDragPoint.Value.X;
                var dY = posNow.Y - m_LastDragPoint.Value.Y;

                m_LastDragPoint = posNow;

                ScrollViewerAdjustableSizeMap.ScrollToHorizontalOffset(ScrollViewerAdjustableSizeMap.HorizontalOffset - dX);
                ScrollViewerAdjustableSizeMap.ScrollToVerticalOffset(ScrollViewerAdjustableSizeMap.VerticalOffset - dY);
            }
        }
        private void ScrollViewerAdjustableSizeMapMouseMove(object sender, MouseEventArgs e)
        {
            if (m_LastDragPoint.HasValue)
            {
                var posNow = e.GetPosition(ScrollViewerAdjustableSizeMap);

                var dX = posNow.X - m_LastDragPoint.Value.X;
                var dY = posNow.Y - m_LastDragPoint.Value.Y;

                m_LastDragPoint = posNow;

                ScrollViewerAdjustableSizeMap.ScrollToHorizontalOffset(ScrollViewerAdjustableSizeMap.HorizontalOffset - dX);
                ScrollViewerAdjustableSizeMap.ScrollToVerticalOffset(ScrollViewerAdjustableSizeMap.VerticalOffset - dY);

                if (e.LeftButton == MouseButtonState.Pressed)
                {
                    SetMiniMapBorderRange();
                }
            }
        }