On 06.01.2013 09:40, Fred Kiefer wrote:
Thank you for reporting this. Most likely I caused that with my recent string
drawing changes. I will be looking into this later today.
Fred
On the road
Am 06.01.2013 um 13:19 schrieb Germán Arias <[email protected]>:
To see this problem:
1) Run Gorm.
2) Select in menu "Document -> New application".
3) Close Gorm.
4) The titles of buttons at alert panel aren't centered.
It turns out that this problem was caused by a change I made in the
horizontal typesetter. There when the width of the text container is
above 1e7 we now ignore the alignment attribute, just as Apple does.
This change is correct, but it requires an additional change in the
string drawing code. There we can no longer reuse a layout manager that
has been set up without a container size when we require the layout in a
container with a given size. That change itself was easy to make and is
now in the code. But it has a big downside. Now when we first ask for
the size of the attributed string and later draw it, we now longer find
the layout already in that cache. Most likely this was the biggest
source of cache hits that we had and now they are gone, the string needs
to be processed twice. We really need a better solution here. The old
code was incorrect as it did give different results from what Apple
displayed, but the new code is inefficient, which is almost as bad.
Any help here to come up with a better way is highly appreciated.
Fred
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