Category Archives: KDE

My GSoC Project: Port Plasma Calendar and other widgets to QML

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This year I’ve been accepted as a Google Summer of Code student. My project goal is to port some plasma widgets (luna, fifteen puzzle, timer, calculator and notes) and the calendar to QML.

This GSoC project is rather important for several reasons, including:

  • QML will play an important role in Qt5
  • Using QML will allow to switch easily to QML Scene Graph
  • QML makes development and maintenance easier
  • QML plasma widgets much less likely crash the plasma shell

I would like to underline that a plasma widget is ported when there are no regressions so no one will notice the difference (anyway I hope they will behave better).

Timer widgets comparison (left: C++ version, right: QML version)

Timer widgets comparison (left: C++ version, right: QML version). Do you see any difference?

Current Status:

I’ve been working on this GSoC project for nearly a month now and the port of some widgets is almost complete (there are some missing pieces that needs to be addressed but I think they will be ready soon).

I'm going to Akademy 2012

Anyway at the Akademy I will talk more about this GSoC project (Sat. 30 at 10.15/Room 2) 🙂

KDE on mobile phone #0 (building ofono)

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Sadly KDE mobile phone stack hasn’t been accepted as google summer of code project (we had other 50 proposals with higher priority).  Personally I don’t agree, so I plan to work on it anyway.

If you want to build a KDE mobile stack that is able to connect to GMS/UMTS/CDMA network you need to build ofono (or any other similar daemon) as first thing. You just need to download phonesim and ofono from here. Then you just have to build both with ./configure && make. If you want you can run both from source directory (but you’ll need to copy src/ofono.conf to /etc/dbus-1/system.d/ofono.conf).

Ofono configuration is rather simple, you just have to copy the following configuration in /usr/local/etc/ofono/phonesim.conf.

[phonesim]
Driver=phonesim
Address=127.0.0.1
Port=12345

Now you are ready to run phonesim and ofono.

Our mobile phone stack depends also on ofono-qt library.

We love fresh wallpapers :)

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As usual we would like to see new wallpapers included in the next KDE SC release and we need your help.  So a new wallpaper contest is started!

If you want to participate you must keep to 3 fundamental rules:

  • you must be the author of the photograph, you must provide your full name and you have to state the license (lgpl v3 is better).
  • entries must be at least 1920×1200 resolution and a copy of the photo in RAW format (if available) is apprecitated.
  • you must send your photographs to davide.bettio@kdemail.net before the 13th of june with the word “WALLPAPER” in the subject

Your wallpapers will be evaluted by some of the KDE artists and the best wallpapers will be released with KDE SC 4.7.

KDE SC 4.5 Wallpapers

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The wallpaper contest has ended and now I can announce that KDE SC 4.5 will have 12 shiny new wallpapers:
New KDE SC 4.5 Wallpapers

Autumn, Grass, Hanami and Stripes will be part of kdebase, while all the other wallpapers will go into kdeartwork.

Thanks to:

  • Alexandre Courbot (Hanami, Korea)
  • Helena Świderska (Yellow Flowers)
  • Ivan Čukić (Stripes)
  • Jonas Arnfred (Blue Wood)
  • Jorge Sandín (City at Night)
  • Piotr Adamek (Autumn)
  • Risto Saukonpää (Chess, Dragonfly, Field, Grass)
  • Sebastian Schubert (Osterkaktus)
  • and to everyone who has sent photos.

I'm going to Akademy 2010

KDE needs you :)

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KDE SC 4.5 will be released soon in August and we would love to see some of your photos beeing part of the KDE SC wallpaper collection 🙂

If you want to participate you must keep to 3 fundamental rules:

  • you must be the author of the photograph, you must provide your full name and you have to state the license (lgpl v3 is better).
  • entries must be at least 1920×1200 resolution and a copy of the photo in RAW format (if available) is apprecitated.
  • you must send your photographs to davide.bettio@kdemail.net before the 13th of june with the word “WALLPAPER” in the subject

Your wallpapers will be evaluted by some of the KDE artists and the best wallpapers will be released with KDE SC 4.5.

more tokamak photos

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Plasma and QGesture*

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Plasma has support for mulitouch events but for some reasons I can’t get any QGestureEvent, does anyone have any idea about why QGesture doesn’t work with Plasma?

It seems that QGestureRecognizers can receive QEvent::TouchBegin but they can’t receive QEvent::TouchUpdate or QEvent::TouchEnd.

Any idea?

tokamak

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Plasma Web Browser and WebKit

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Recently I’ve been working on the web browser plasmoid and since yesterday it’s possible to use it like a complete stand alone browser (with advanced rendering capabilities thanks to QtWebKit), moreover Plasma::WebView has been recently ported to KGraphicsWebView so it has KDE integration too.

The summary of recent changes is:

  • Plasma::WebView does the same (and better) with less lines of code.
  • Plasma::WebView uses now a KDE integrated WebKit.
  • Web Browser now supports windows (with overlays).
  • The progress bar has been replaced with a ProgressComboBox (like rekonq).

By the end of the tokamak plasma will provided to users a complete web experience.