Are you experienced?


Well I’m not, but I’m having a lot of fun :-)

My first two Plasmoids are very simple but gave me a brief look into the possibilities of the Plasma Workspace, and I had to ask a lot of newbie questions on plasma-devel which is a very responsive mailing list. I cannot remember any of my questions that have gone unanswered and most of them with very good solutions and/or answers.

My latest endeavor is a bit more challenging. Plasma doesn’t have a simple ListView so you’ll have to use a Plasma.ScrollWidget and implement the methods yourself. For me that was somewhat annoying primarily because I’m still fighting a stale battle with the Qt layouts :-)

Now I have to figure out how I’m gonna the cache Last.fm feed and all the pics that I’m downloading. For 3 reasons, the most important is of course performance, followed by the fact that the tests I’ve run on my crappy HW results in X pixmaps getting corrupted [*], and lastly that it’s a part of the Last.fm ToS

For now I use job = KIO.get(KUrl(url), KIO.NoReload, KIO.HideProgressInfo) and connect to job‘s signals to get the the feed and to download the thumbnail pics of the events I use KIO.file_copy(from, to). This basically works but how can I get the HTTP Headers? I need to know if I should reuse the data I already have or if I should download it again.

Regarding the actual caching I was considering using a combination of:

KStandardDirs::addResourceDir()

KIconLoader::KIconLoader(const QString &appname = QString(), KStandardDirs *dirs = 0, QObject *parent = 0)

KIcon (const QString &iconName, KIconLoader *iconLoader)

But I’m uncertain how to use them.

Comments are very welcome as I’m a bit stuck here.

[*] I have no idea what I’m talking about here, but I get black icons after running X number of tests :-/

And are no screen shots in this post as the work has mostly been "under the hood".

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Posted in KDE, Plasma, Python. Tags: , , . 2 Comments »

2 Responses to “Are you experienced?”

  1. sebas Says:

    kde-devel@kde.org would be a suitable mailing list for all your questions above. :)


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