[WASTE-list] How to find out the selected text is inside or outside the viewrect

[Marco Piovanelli]

On Tue, 25 Apr 2006 14:29:50 +0530,
Vinay Prabhu (vinayprabhu at tataelxsi.co.in) wrote:



>Is there any way to find out the text selection is inside

>or outside the viewrect.


If you want a yes/no answer, you need to decide what to do
if the selection is *partially* visible.  For example, the
criterion employed by WESelView() to determine whether the
selection range is visible or not is by looking at the free
endpoint of the selection (the one that moves if you type
shift+left/right arrow).  Something like this:

    bool IsSelectionVisible(WEReference inWE)
    {
        SInt32              selStart, selEnd;
        SInt32              freeEndpoint;
        LongPt              position;
        LongRect            viewRect;

        WEGetSelection(&selStart, &selEnd, inWE);
        freeEndpoint = (WEGetSelectionAnchor(inWE) == selStart) ?
selEnd : selStart;
        WEGetPoint(freeEndpoint, kHilite, &position, 0, inWE);
        WEGetViewRect(&viewRect, inWE);
        return WELongPointInLongRect(&position, &viewRect);
    }

Hope this helps,


                                    -- marco

-- 
It's not the data universe only, it's human conversation.
They want to turn it into a one-way flow that they have entirely
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