BOOL CRectTracker::SetCursor(CWnd* pWnd, UINT nHitTest) const
{
// trackers should only be in client area
if (nHitTest != HTCLIENT)
return FALSE;
// convert cursor position to client co-ordinates
CPoint point;
GetCursorPos(&point);
pWnd->ScreenToClient(&point);
// do hittest and normalize hit
int nHandle = HitTestHandles(point);
if (nHandle < 0)
return FALSE;
// need to normalize the hittest such that we get proper cursors
nHandle = NormalizeHit(nHandle);
// handle special case of hitting area between handles
// (logically the same -- handled as a move -- but different cursor)
if (nHandle == hitMiddle && !m_rect.PtInRect(point))
{
// only for trackers with hatchedBorder (ie. in-place resizing)
if (m_nStyle & hatchedBorder)
nHandle = (TrackerHit)9;
}
ASSERT(nHandle < _countof(rghCursors));
::SetCursor(rghCursors[nHandle]);
return TRUE;
}
BOOL CAxRectTracker::Track(CWnd* pWnd, CPoint point, BOOL bAllowInvert, CWnd* pWndClipTo)
{
// perform hit testing on the handles
int nHandle = HitTestHandles(point);
if (nHandle < 0)
{
// didn't hit a handle, so just return FALSE
return FALSE;
}
// otherwise, call helper function to do the tracking
m_bAllowInvert = bAllowInvert;
return TrackHandle(nHandle, pWnd, point, pWndClipTo);
}
int CAxRectTracker::HitTest(CPoint point) const
{
TrackerHit hitResult = hitNothing;
CRect rectTrue;
GetTrueRect(&rectTrue);
ASSERT(rectTrue.left <= rectTrue.right);
ASSERT(rectTrue.top <= rectTrue.bottom);
if (rectTrue.PtInRect(point))
{
if ((m_nStyle & (resizeInside|resizeOutside)) != 0)
hitResult = (TrackerHit)HitTestHandles(point);
else
hitResult = hitMiddle;
}
return hitResult;
}