/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.MouseMove"></see> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.MouseEventArgs"></see> that contains the event data.</param>
protected override void OnMouseMove(MouseEventArgs e)
{
if (DesignView.Context != null)
{
Size dragBoxSize = SystemInformation.DragSize;
CurrentMousePoint = new Point(e.X, e.Y);
int dx = CurrentMousePoint.X - FirstMousePoint.X;
int dy = CurrentMousePoint.Y - FirstMousePoint.Y;
if (!m_dragOverThreshold)
{
if (Math.Abs(dx) > dragBoxSize.Width || Math.Abs(dy) > dragBoxSize.Height)
{
m_dragOverThreshold = true;
if (m_mouseDownAction == MouseDownAction.Manipulating)
{
DesignView.Manipulator.OnBeginDrag();
}
}
}
if (m_mouseDownAction == MouseDownAction.Picking)
{
Invalidate();
}
else if (m_mouseDownAction == MouseDownAction.ControllingCamera)
{
CameraController.MouseMove(this, e);
}
else if (m_mouseDownAction == MouseDownAction.Manipulating)
{
if (m_dragOverThreshold)
{
DesignView.Manipulator.OnDragging(this, e.Location);
DesignView.Tick();
if (m_propEditor == null)
{
m_propEditor = Globals.MEFContainer.GetExportedValue <PropertyEditor>();
}
m_propEditor.PropertyGrid.RefreshProperties();
}
}
else if (DesignView.Manipulator != null)
{
bool picked = DesignView.Manipulator.Pick(this, e.Location);
this.Cursor = picked ? Cursors.SizeAll : Cursors.Default;
DesignView.InvalidateViews();
}
else if (this.Cursor != Cursors.Default)
{
this.Cursor = Cursors.Default;
}
}
if (m_dragOverThreshold)
{
m_hitIndex = -1;
}
base.OnMouseMove(e);
}
