Qt

Graphics View Gem: Item Obscurity

Published Thursday September 14th, 2006 | Comments Off on Graphics View Gem: Item Obscurity
Posted in Graphics Items, Graphics View, KDE, Labs, Qt

During this summer of pre-4.2 testing, we got many feature requests from you all, customers and Open Source’rs, and I’d like to pull out one of the things we decided to implement as a result of this. Item obscurity: being able to determine whether an item is obscured, or not. The idea is that any […]

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Preparations for DevDays2006 begins!

Published Thursday September 14th, 2006 | Comments Off on Preparations for DevDays2006 begins!
Posted in Qt, Uncategorized

I really need to get into the habit of this blog thing. Anyway, I needed a small break from what I was doing before I head up to the cafeteriafor lunch. I somehow managed to volunteer for giving 3 presentations during Trolltech Developer Days 2006. I’m mostly done with the multi-threading presentation; I just have […]

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Lorn Potter

Greenphone pricing

Published Tuesday September 12th, 2006 | Comments Off on Greenphone pricing
Posted in KDE, Qt, Qtopia

Finally! The Greenphone Qtopia 4 developer SDK pricing is announced and for sale. Now the fun begins!

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Behavioral changes in QIODevice in Qt 4.2

Published Monday September 11th, 2006 | Comments Off on Behavioral changes in QIODevice in Qt 4.2
Posted in KDE, Qt

Some people think QFile in Qt 4 is slow[*]. Compared to Qt 3, the noticable difference lies in QIODevice::getChar(), and to some extent, QIODevice::putChar(). But there’s good news: With Qt 4.2, we’ve managed to improve QIODevice’s performance by 4-5x when reading small blocks at a time, especially so for getChar() :-). So something has changed […]

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Lorn Potter

Invitation to Trolltech’s DevDays 2006

Published Wednesday September 6th, 2006 | Comments Off on Invitation to Trolltech’s DevDays 2006
Posted in KDE, Qt, Qtopia

Trolltech is inviting free software and open source developers to the annual Developer Day Conference[1]. One of the talks in the San Jose, CA venue is by Dr. Bjarne Stroustrup, designer and original implementer of C++. There will be talks ranging from 3D Graphics Development with Qt and OpenGL to demonstrations of the Qtopia Greenphone. […]

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Lorn Potter

crikey!

Published Monday September 4th, 2006 | Comments Off on crikey!
Posted in KDE, Qt

I have been in Australia for 3 years. My parents are visiting for a few weeks. and wouldn’t you know it… the day before we had planned to visit Beerwah (Australia Zoo), Steve Irwin dies. Needless to say, the Zoo won’t be open, and it wouldn’t be a good place to be anyway, after yesterdays […]

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Eskil Abrahamsen Blomfeldt

Second Qt Jambi Technology Preview

Published Thursday August 31st, 2006 | Comments Off on Second Qt Jambi Technology Preview
Posted in KDE, Qt

After doing some last minutes repairs the night before, we successfully launched the second technology preview of Qt Jambi (Qt for Java) yesterday. We’ve fixed a few bugs in this one, added some flexibility to the Eclipse plugin and Qt Jambi in general, and tried to iron out some bumps in the API. Deployment One […]

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4 million items, is it really possible?

Published Wednesday August 30th, 2006 | 1 Comment on 4 million items, is it really possible?
Posted in Graphics Items, Graphics View, KDE, Labs, Qt

Someone asked me if it was truly possible to do 4 million items in real time using Graphics View. I challenge you to see for yourselves. Download one of the latest snapshots for Qt 4.2 (one with the 40000 Chips demo in it) – and apply this patch to increase the number of items. It’s […]

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Maybe it’s just too simple

Published Saturday August 26th, 2006 | Comments Off on Maybe it’s just too simple
Posted in Graphics Items, Graphics View, KDE, Labs, Qt

I’ve did some web crawling on Graphics View [keywords graphicsview, qgraphicsview, qgraphicsscene, “graphics view”…], trying to get a feel for what projects out there are poking into Qt 4.2’s snapshots, and starting to use our favorite canvas framework for real-life apps. I was positively surprised. Try it out :-). People are discussing the frame work […]

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