In your AppStart routine save the original TblGetItemBounds with
SysGetTrapAddress, and register the replacement with SysSetTrapAddress. In
your AppStop routine restore the original with SysSetTrapAddress. In your
replacement routine call the original first - so you inherit the
functionality of the current PalmOS - and then if it is a custom table item
override the vertical extent.
This should work for the highlighting :-).
But, now I come to look at it, you would need to patch TblHandleEvent as
well to get the selection to work properly, as the PointInTableItem private
routine makes a similar assumption about non text items. :-(.
Ah well, nothing worthwhile in life is ever easy.
Certainly patching seems to be the best bet, as new versions of the OS
shouldn't compromise your patches - and, of course, you only have to code it
once.
Regards,
Simon Bennett
In your
"Jamie Macleod" <[EMAIL PROTECTED]> wrote in message
news:52849@palm-dev-forum...
>
> How do you get your routine to be called instead of the original?
>
> Jamie
> "Simon Bennett" <[EMAIL PROTECTED]> wrote in message
> news:52824@palm-dev-forum...
> >
> > The problem appears to be with TblGetItemBounds and assumptions
> > it makes with non text columns. The archives appear to concur.
> >
> > So why not simply patch this routine? Call the original in your
> patched
> > version,
> > but override the response for non text columns. It works like a charm
for
> > me.
> >
> > Regards,
> >
> > Simon Bennett,
> > Senior technical analyst,
> > System Lynx Ltd/Total Control Systems (UK) Ltd/SafeTRACK.co.uk Ltd
> > E-mail: [EMAIL PROTECTED]
> > Tel: +44 01922 622044
> > Fax: +44 01922 621569
> > Net: www.totalsupportline.com (Support information, call
> logging
> > and progress for System Lynx Ltd, Total Control Systems (UK) Ltd and
> > SafeTRACK.co.uk Ltd)
> > www.safetrack.co.uk (SafeTRACK information and
> > access)
> >
> > "Bradly J. Barton" <[EMAIL PROTECTED]> wrote in message
> > news:52765@palm-dev-forum...
> > >
> > > > > My problem is not with the display, but with the selection.. For
> some
> > > > > reason, I can only click and get a table select event when I click
> on
> > > the
> > > > > top half of a cell, but not the bottom half.
> > >
> > > For those who might need something like this....
> > >
> > > The archives led to the same conclusion.. that you had to do it
> yourself..
> > > my temporary (but not completely elegant yet because the highlight
still
> > > looks odd, I'm open to suggestions on solving that part) solution to
> this
> > is
> > > this code in my event handler:
> > >
> > > *** Declared in the handler:
> > > static RectangleType tableBounds;
> > > static Boolean isDownInTable;
> > >
> > > *** tableBounds is set to the bounding rectangle of my table and
> > > isDownInTable is set to false in the frmOpenEvent:
> > > TblGetBounds(table, &tableBounds);
> > > isDownInTable = false;
> > >
> > > *** I added these penDown and penUp Events..
> > >
> > > case penDownEvent:
> > > {
> > > isDownInTable = RctPtInRectangle (event->screenX, event->screenY,
> > > &tableBounds);
> > > break;
> > > }
> > > case penUpEvent:
> > > {
> > > if (isDownInTable && RctPtInRectangle (event->screenX,
event->screenY,
> > > &tableBounds))
> > > {
> > > int row;
> > > RectangleType cellBounds;
> > > cellBounds.topLeft.x = tableBounds.topLeft.x;
> > > cellBounds.topLeft.y = tableBounds.topLeft.y;
> > > cellBounds.extent.x = tableBounds.extent.x;
> > > // my table has 5 rows, but this could be replaced by a call to
> > > TblGetNumberOfRows
> > > cellBounds.extent.y = tableBounds.extent.y / 5;
> > > row = 0;
> > > while (row < 5) // ditto note above about number of rows...
> > > {
> > > if (RctPtInRectangle(event->data.penUp.start.x,
> > > event->data.penUp.start.y, &cellBounds) &&
> > > RctPtInRectangle(event->data.penUp.end.x,
> event->data.penUp.end.y,
> > > &cellBounds))
> > > break;
> > > cellBounds.topLeft.y += cellBounds.extent.y;
> > > idx++;
> > > }
> > > if (row < 5) // ditto again...
> > > {
> > > // the pen went down and up on the same row and "row" is the value
> > > }
> > > }
> > > isDownInTable = false;
> > > break;
> > > }
> > >
> > >
> > >
> > >
> >
> >
> >
> >
>
>
>
>
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