I m currently trying to convince (and hopefully succeeding) Daniel Burrows to co-mentor a Qt frontend for aptitude.
But for that a student is needed. http://wiki.debian.org/SummerOfCode2010/Aptitude-Qt for first draft of project.
http://wiki.debian.org/gsoc for information about GSoC and debian -!- You re now known as svuorela
I have been playing a bit around with Maemo and writing Qt apps for n900. I ended up needing a rotation aware QMainWindow a couple of times, so I ended up abstracting it away in my own MaemoMainWindow, which I just wanted to share. It has enough ifdefs to also build against normal Qt, outside Maemo.
Have fun. Available under any license.
maemomainwindow.h:
#ifndef MAEMOMAINWINDOW_H
#define MAEMOMAINWINDOW_H
#include <QMainWindow>
class MaemoMainWindow : public QMainWindow
Q_OBJECT
public:
MaemoMainWindow (QWidget* parent = 0, Qt::WindowFlags flags = 0);
virtual ~MaemoMainWindow();
protected:
virtual bool event (QEvent* event);
Q_SIGNALS:
void orientationChanged(Qt::Orientation newOrientation);
private Q_SLOTS:
void orientationChangedSlot(const QString& newOrientation);
private:
Qt::Orientation m_orientation;
;
#endif // MAEMOMAINWINDOW_H
maemomainwindow.cpp:
#include "maemomainwindow.h"
#ifdef Q_WS_MAEMO_5
#include <mce/mode-names.h>
#include <mce/dbus-names.h>
#endif
#ifdef Q_WS_MAEMO_5
#include <QDBusConnection>
#include <QDBusMessage>
#include <QEvent>
#endif
MaemoMainWindow::MaemoMainWindow (QWidget* parent, Qt::WindowFlags flags) : QMainWindow (parent, flags)
#ifdef Q_WS_MAEMO_5
QDBusConnection::systemBus().connect(QString(), MCE_SIGNAL_PATH, MCE_SIGNAL_IF,
MCE_DEVICE_ORIENTATION_SIG,
this,
SLOT(orientationChangedSlot(QString)));
#endif
MaemoMainWindow::~MaemoMainWindow()
void MaemoMainWindow::orientationChangedSlot (const QString& newOrientation)
#ifdef Q_WS_MAEMO_5
if (newOrientation == QLatin1String(MCE_ORIENTATION_PORTRAIT))
setAttribute(Qt::WA_Maemo5ForcePortraitOrientation, true);
emit orientationChanged(Qt::Vertical);
else
setAttribute(Qt::WA_Maemo5ForceLandscapeOrientation, true);
emit orientationChanged(Qt::Horizontal);
#else
Q_UNUSED(newOrientation);
#endif
bool MaemoMainWindow::event (QEvent* event)
#ifdef Q_WS_MAEMO_5
switch (event->type())
case QEvent::WindowActivate:
QDBusConnection::systemBus().call(
QDBusMessage::createMethodCall(MCE_SERVICE, MCE_REQUEST_PATH,
MCE_REQUEST_IF,
MCE_ACCELEROMETER_ENABLE_REQ));
break;
case QEvent::WindowDeactivate:
QDBusConnection::systemBus().call(
QDBusMessage::createMethodCall(MCE_SERVICE, MCE_REQUEST_PATH,
MCE_REQUEST_IF,
MCE_ACCELEROMETER_DISABLE_REQ));
break;
default:
break;
#endif
return QMainWindow::event (event);
Update: reformatted code. Thought wordpres and <code> was smart. Thanks Ken.
If you are using QMutex, you are probably writing threaded applications, and thus want to use helgrind (part of valgrind).
helgrind has some support for threading and mutexes in Qt, but not fully.
If you try to run a app using a QMutex subclass in helgrind, it fails with
<appname>: hg_intercepts.c:2124: _vgwZU_libQtCoreZdsoZa__ZN6QMutexC2ENS_13RecursionModeE: Assertion 0' failed.
Basically, it is the handler for the _ZN6QMutexC2ENS_13RecursionModeE symbol that is implemented as assert(0);. The demangled symbol is QMutex::QMutex(QMutex::RecursionMode), which looks very much like the constructor for QMutex:
$ objdump -T /usr/lib/libQtCore.so grep _ZN6QMutexC
00068840 g DF .text 0000005b Base _ZN6QMutexC2ENS_13RecursionModeE
000687e0 g DF .text 0000005b Base _ZN6QMutexC1ENS_13RecursionModeE
QMutex::QMutex(QMutex::RecursionMode)
The important difference is the C1 vs C2 in the mangled symbol name. The C1 symbol is used for creating QMutex objects (complete object constructor), wheras the C2 symbol is used for creating subclasses of QMutex (base object constructor).
And the C2 handler in helgrind is as said implemented as assert(0);.QMutex. (the destructor handler for subclasses is also implemented the same way)
QMutex has no virtual base class, so even in case of subclassing, I think the helgrind handlers should be implemented the same way in the base object constructor as in the base complete object constructor.
I guess I should file a bug against helgrind.
A test app if anyone is curious:
Update 1: Bug filed.#include <QtCore>class mymutex : public QMutex
public:
mymutex(QMutex::RecursionMode=QMutex::NonRecursive);
;
mymutex::mymutex(QMutex::RecursionMode mode) : QMutex(mode)
int main(int, char**)
mymutex m;
QMutexLocker lock(&m);
return 0;
Thanks to people who reacted to this post of mine.
As expected, when one posts such angry post, reactions come. Guess what: that was intended..:-)
So, I got more background on this KDE pulls MySQL in issue. The issue is more subtle than just KDE upstream being dumb and using a MySQL daemon or database for desktop operations.
In short, akonadi uses mysqld to manage its cache, from what I understood. So, what's needed is indeed the mysqld binary and not necessarily having it running as a *daemon*.
Bug #513382 explains it all. I really hope that MySQL and KDE maintainers will settle to find a solution for this. Apparently, other distros managed to get such issue solved and I would hate Debian being laughed at because we are the only ones where "thy laptop shalt be a database server".
Really, I won't be getting deeper into that issue, because I don't have the expertise but, really also, we can't seriously ship Squeeze with the current setup. What's unclear from the pointed bug report is whether someone is doing something about this.
Yes, the issue is not new. I actually went on it because I was installing a new laptop and noticed questions about MySQL. My former laptop already had MySQL for other reasons, so I never noticed that my KDE packages were suddenly pulling more stuff in.
Thanks to Sune Vuorela, from the Debian KDE team, and Eckhart W rner, from upstream KDE, for bringing more light on this.
Ah, and thanks also to people who reworked the design of kdm login screen. It's really nice..:-) (and this is not sarcasm, here, I really mean it).
Over the last months, I have been asking people in KDE irc channels and in Debian KDE channels wether they have heard from Matthew Rosewarne, on irc known as Mukidohime. No one had.
Very recently, I uploaded one of his packages with the following changelog entry:
* Switch Maintainer field to krap team and remove Matthew, he seems absent.Apparantly he was absent. Permanently. Elizabeth Krumbach writes some nice words in his memory. I remember Matthew for his work on several KDE related packages in Debian, always doing a job that was better than I expected. And I especially remember him at Akademy 2008 where he to much joy brought a black horse whip for the chairman of a talkroom. And he even brouht a spare pink horse whip for when the black one broke. Especially Adriaan had a good use of that. And at last, I will bring a image of Matthew showing off his equipment to Aaron Seigo.
We hope he comes back.
Matthew Rosewarne
So. Finally, we got KDE 4 series in Debian/Testing, more accurate, KDE4.2.2. So. On Sunday, we worked through some of the bugs filed against KDE in Debian. Mostly, we cleaned up in old cruft, and a few bugs got forwarded.
A bunch of the Debian KDE people participated, and some KDE Bugsquad people also dropped by. And a special thanks goes to the apparant newcomer, Karl Ferdinand Ebert, for doing a fantastic work, and I also succeeded in getting Anne-Marie Mahfouf to take a look at the kdeedu reports.
We cleaned up in kdegraphics, kdeedu, kdeadmin and akregator reports, and did quite some work on the bug magnets of konqueror, kmail and kopete.
Total result was around 100 bugs down, and we discovered a few bugs that had hidden in between the others, that is actually packaging issues. This sunday, the 19th of april, at 11 CEST, I will start work my way thru many open filed against KDE in the Debian Bug Tracking System that really belongs at bugs.kde.org - or just doesn t apply anymore.
Feel free to join in in #debian-kde on irc.debian.org aka oftc.
See you there.
My mobile phone recently stopped working, I handed it in for repair under warrenty. They fixed it, and flashed it with new firmware, removing all my settings and most importantly, my phone book.
So, dear all of you, please send me a text message with your name if you think you should be in my phone book.
And if anyone has any good backup strategies for phonebook and such of a nokia E71 for linux users, please use the comment field, preferably some thing nice clickyclicky thing that uses Qt4 or kdelibs of KDE 4
Copy of http://lists.debian.org/debian-devel/2009/04/msg00421.html.
Hi folks,
We have been pretty busy these past few weeks with the whole Google Summer of Code 2009 student application process. A quick update before the big one about the 2009 Google Summer of Code.
I believe we had a great recruitment drive this year and we have a very good set of proposals to work with. We d like to thank everyone involved for their help. We re now ranking out student applications.
I promised elsewhere that I ll send out our shortlist of projects once Google sends us our preliminary slot allocation today but I misread the thread on the -mentors list and that count will only happen on Thursday, so we ll have to wait a bit more. That shortlist would only include projects, but not individual students. The idea is to give a heads up to everyone before committing to a group of projects and students. It is very important to inform the community as it increases visibility of the students work, giving them more help and support (and also avoids duplicating existing not yet publicized work!).
As far as mentors go, we should have all of our approximately 14 planned projects covered, except for 2. I m posting them here in case you could mentor or help find mentors for those projects. (The wiki pages are not really up to date, so please come on IRC and ask clarifications, see below)
Finish Petr Rockai s Adept 3.0 and bring a Qt4 Package Manager to Debian, with a different interface paradigm than Aptitude-gtk. KDE4 is now finally fully in Debian unstable, including the fabulous settings migration tool known as Kaboom. easy. http://www.amazon.de/dp/B001CX5G8K/ + https://garage.maemo.org/projects/usb-otg-plugin/ + random usb thingie + n810 == success.
Recently, a new version of Gnash was uploaded to Debian by Miriam Ruiz.
The most important thing in the changelog from my point of view is the following:
Dear Lazyweb
I m looking to retire my basement server. It is a athlon 700MHz processor with 384mb ram and 200G harddrive (of which 40 or so is used)
I don t currently need a more beefy machine for this, so I kind of thought of just going for a small virtual private server. /me++
Or in a bit longer words, today is my birthday and I got a nice present from Debian - a release sent from Samoa.
For all the KDE/Debian users, this is also the beginning of something special: Pushing KDE4 slowly to unstable and testing/squeeze.Or Is distro’s backporting of features a good thing or Distro A is much better than Distro B because of the cool features
So. Advantages when backporting features
Gathering
Next.