Hi Brett,
Thank you for your suggestions.
I would like to use the default size and resize it in my code that
creates tab thumbnails.
Regards,
Hironori Bono
E-mail: hb...@chrommium.org
2009/10/24 Brett Wilson <bre...@chromium.org>:
> 2009/10/23 Hironori Bono (坊野 博典) <hb...@google.com>:
>> Hi Brett,
>>
>> Thank you so much for noticing this. I'm integrating the
>> ThumbnailGenertor class into my prototype now. :)
>> By the way, I'm a little wondering if there is a function that changes
>> the width and the height of a thumbnail image generated by the
>> ThumbnailGenerator class at run time. If not, I would like to hear
>> there is a plan to add it.
>> When Windows 7 shows tab thumbnails, it automatically calculates the
>> width and the height of a thumbnail image so that it can show all
>> thumbnails in one line. (When we open too many tabs and Windows 7
>> cannot show their thumbnails, it shows a list of tab titles.) In
>> brief, we cannot assume the width or the height of a thumbnail as
>> constant values on Windows 7.
>> So, it may be better for the ThumbnailGenerator class to have an
>> interface that changes the width and the height of its thumbnails. (I
>> has added code that resizes the thumbnails retrieved from the
>> ThumbnailGenerator object and sends the resized thumbnails to Windows
>> 7. So, I don't mind it at all.)
>
> There isn't a way to do this. The reason is that the thumbnail
> generator precalculates thumbnails in advance for many pages (for
> example, when we're discarding the backing store). This means we have
> to know basically when we start Chrome what the max thumbnail size
> will be. It uses power-of-two downsampling to be as fast as possible,
> so the actual thumbnails aren't guaranteed to be any particular size.
>
> I would just use the default size for now. If it doesn't look OK, we
> can add a future enhancement to request the size, so the ones it
> generates on-demand (the ones where there is a backing store) can have
> a larger size if needed.
>
> Brett
>
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