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Is anyone aware of a publicly available code base to look into when searching for high quality Qt-based (desktop) applications? Think chromium-quality software

by W0lf 6y ago

Is anyone aware of a publicly available code base to look into when searching for high quality Qt-based (desktop) applications? Think chromium-quality software quality code base. I am looking for inspiring patterns and also things such as naming schemes as I regularly change my mind when it comes to developing Qt based applications with regard to: - naming things (e.g. should signals/slots be prefixed (sigFoo() -> onFooBared()) - how to deal with signal functions actually not implemented (clang-tidy warnings) - how to break up large main window classes in a reasonable manner and so on. Typically I immerse myself in one of the larger code bases I'm aware of (Android, Firefox, Chromium, Tensorflow, and some others) and regularly discover pretty useful patterns I can make use of. However, I was unlucky to find something for Qt based.

zwieback 6y ago
You could look at KDE, I don't know about the quality but it's a big enough public effort that it should be well reviewed. https://en.wikipedia.org/wiki/KDE_Projects https://en.wikipedia.org/wiki/KDE_Projects
hoistbypetard 6y ago
The KDE applications would seem like a good place to start. https://kde.org/applications/office https://kde.org/applications/office
ynezz 6y ago
Qt itself, like for example https://github.com/qt/qttools https://github.com/qt/qttools?
- MaxBarraclough 6y ago
  Good suggestion. Code snippets showing the naming style they use: connect(contextShortcut, SIGNAL(activated()), this, SLOT(showContextDock())); connect(m_messageView->selectionModel(), SIGNAL(currentColumnChanged(QModelIndex,QModelIndex)), SLOT(updateLatestModel(QModelIndex))); Taken from https://github.com/qt/qttools/blob/7ec161d6f/src/linguist/linguist/mainwindow.cpp https://github.com/qt/qttools/blob/7ec161d6f/src/linguist/li...
heeen 6y ago
QtCreator maybe?
- jcelerier 6y ago
  seconded, I used the general design ideas of QtCreator as a baseline for my own stuff and it's been great
ar-jan 6y ago
QGIS could be interesting. It contains tons of functionality, and interfaces with multiple other geospatial projects.
cpach 6y ago
Virtualbox maybe
nextweek2 6y ago
qBittorret has always been a bit cutting edge with Qt feature usage, which can be interesting. https://github.com/qbittorrent/qBittorrent https://github.com/qbittorrent/qBittorrent not able to comment on code quality.
wheels 6y ago
> Think chromium-quality software quality [...] There's an irony somewhere in there that Chromium is a descendant of KHTML, KDE's rendering engine, which became WebKit and was originally written using Qt. And Google and Apple's contributions were regularly derided for being relatively low quality. Qt and KDE have always had a lot of cross-contribution, so KDE (its libraries, for example) is a good place to start: https://github.com/KDE/kdelibs https://github.com/KDE/kdelibs There's also this old, but still relevant, article on designing Qt-style APIs (which had a big impact on me personally): https://doc.qt.io/archives/qq/qq13-apis.html https://doc.qt.io/archives/qq/qq13-apis.html

by W0lf 6y ago

zwieback 6y ago

You could look at KDE, I don't know about the quality but it's a big enough public effort that it should be well reviewed. https://en.wikipedia.org/wiki/KDE_Projects https://en.wikipedia.org/wiki/KDE_Projects

hoistbypetard 6y ago

The KDE applications would seem like a good place to start. https://kde.org/applications/office https://kde.org/applications/office

ynezz 6y ago

Qt itself, like for example https://github.com/qt/qttools https://github.com/qt/qttools?

MaxBarraclough 6y ago
Good suggestion. Code snippets showing the naming style they use: connect(contextShortcut, SIGNAL(activated()), this, SLOT(showContextDock())); connect(m_messageView->selectionModel(), SIGNAL(currentColumnChanged(QModelIndex,QModelIndex)), SLOT(updateLatestModel(QModelIndex))); Taken from https://github.com/qt/qttools/blob/7ec161d6f/src/linguist/linguist/mainwindow.cpp https://github.com/qt/qttools/blob/7ec161d6f/src/linguist/li...

heeen 6y ago

QtCreator maybe?

jcelerier 6y ago
seconded, I used the general design ideas of QtCreator as a baseline for my own stuff and it's been great

ar-jan 6y ago

QGIS could be interesting. It contains tons of functionality, and interfaces with multiple other geospatial projects.

cpach 6y ago

Virtualbox maybe

nextweek2 6y ago

qBittorret has always been a bit cutting edge with Qt feature usage, which can be interesting. https://github.com/qbittorrent/qBittorrent https://github.com/qbittorrent/qBittorrent not able to comment on code quality.

wheels 6y ago

> Think chromium-quality software quality [...] There's an irony somewhere in there that Chromium is a descendant of KHTML, KDE's rendering engine, which became WebKit and was originally written using Qt. And Google and Apple's contributions were regularly derided for being relatively low quality. Qt and KDE have always had a lot of cross-contribution, so KDE (its libraries, for example) is a good place to start: https://github.com/KDE/kdelibs https://github.com/KDE/kdelibs There's also this old, but still relevant, article on designing Qt-style APIs (which had a big impact on me personally): https://doc.qt.io/archives/qq/qq13-apis.html https://doc.qt.io/archives/qq/qq13-apis.html