[Qt-interest] Updating the TableWidgetItem slows down the operation significantly.

[David Boosalis]

So you want to change the cursor from an arrow to a hand.  Why not use a
method like setCursor() and let QT do all the work?  Or am I missing
something

-David


On Thu, Feb 25, 2010 at 4:35 PM, Yong Zhang <yzhang.qt at gmail.com> wrote:

> Hi All,
>
> I use a QTableWidget to display the current location values (x, y) of
> the mouse on the screen. I display the mouse location using a hand image
> on the screen. When the mouse moves, the mouse image is updated on the
> screen to indicate the new location. My goal is to also update the
> location values (x, y) in the QTableWidget as two QTableWidgetItems. The
> system works well, however, I found that it significantly slows down the
> operations, that is, the update of the mouse image on the screen is very
> slow and the mouse movements are not smooth. When I do not update the
> location values in the QTableWidget, I can move the mouse around very
> smoothly and the mouse image is also updated very smoothly. My question
> is, is there anyway to make it fast and smooth enough to update the
> information in the QTableWidget?
>
> Thank you very much,
>
> Yong
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