// --------------------------------------------------------
// AutoScroll
//
// Ensure selected item is in middle of list
// --------------------------------------------------------
void
CThirdPage::AutoScroll( CListCtrl & list, int nIndex )
{
//
//<rdar://problem/4528853> mDNS: When auto-highlighting items in lists, scroll list so highlighted item is in the middle
//
int top;
int count;
list.EnsureVisible( nIndex, FALSE );
top = list.GetTopIndex();
count = list.GetCountPerPage();
if ( ( nIndex == top ) || ( ( nIndex + 1 ) == ( top + count ) ) )
{
CRect rect;
int rows;
rows = ( count / 2 );
if ( nIndex == top )
{
list.GetItemRect(0, rect, LVIR_BOUNDS);
list.Scroll( CPoint( 0, rows * rect.Height() * -1 ) );
}
else
{
list.GetItemRect(0, rect, LVIR_BOUNDS);
list.Scroll( CPoint( 0, rows * rect.Height() ) );
}
}
}
//
// ListControlHitTest()
//
// - helper function for using the custom tooltip control with a list control
//
int CMyToolTipWnd::ListControlHitTest(CPoint point, CListCtrl& listCtl, int nColumn)
{
// get client position
listCtl.ScreenToClient(&point);
// get the index of the line under the cursor
int nIndex = -1;
int nFirstVisible = listCtl.GetTopIndex();
int numVisible = listCtl.GetCountPerPage();
CRect itemRect;
for(int i=nFirstVisible;i<nFirstVisible+numVisible;i++)
{
if (listCtl.GetItemRect(i, &itemRect, LVIR_BOUNDS))
{
if (itemRect.PtInRect(point))
{
nIndex = i;
break;
}
}
}
// bail out if not on a line
if (nIndex < 0)
return -1;
// else the line was found, so return if the column doesn't matter
if (nColumn < 0)
return nIndex;
// else need to check if the cursor is on the right column
BOOL bShow = FALSE;
BOOL bInPosition = FALSE;
// check if the cursor is within the specified col
CRect targetRect;
// listCtl.ClientToScreen(&itemRect);
targetRect.left = itemRect.left;
// NCR-FFS Changed i to j
for(int j=0;j<nColumn;j++)
targetRect.left += listCtl.GetColumnWidth(j);
targetRect.right = targetRect.left + listCtl.GetColumnWidth(nColumn);
if ((point.x >= targetRect.left) && (point.x <= targetRect.right))
{
// point is in the proper column, so save the rect
CRect rect;
listCtl.GetItemRect(nIndex, &rect, LVIR_LABEL);
m_location.x = rect.right;
m_location.y = rect.top;
// account for column padding
m_location.x += 5;
m_location.y -= 1;
// return the line index
listCtl.ClientToScreen(&m_location);
return nIndex;
}
else
{
// not within the proper column
return -1;
}
}
