Difference between revisions of "Development/Tools"

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; Subversion
 
; Subversion
 
: Some KDE projects still use [[Community:Infrastructure/Subversion|Subversion]] for some things, notably translations. Third-party developers mostly don't need to bother with this but contributors should take note of it.
 
: Some KDE projects still use [[Community:Infrastructure/Subversion|Subversion]] for some things, notably translations. Third-party developers mostly don't need to bother with this but contributors should take note of it.
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== Development Environments and Editors ==
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; Qt Creator
 +
: Qt application developers are most likely already using Qt Creator as their IDE. The good news is that they don't need to swich away from it just to use KDE Frameworks. Simply add the appropriate module to the QMake project file as indicated by each one's API documentation and you're good to go.
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; KDevelop
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: [http://www.kdevelop.org KDevelop] is a powerful IDE for developing KDE and Qt C++ applications. Unlike Qt Creator, however, it isn't limited to just that use case and supports other languages, libraries, and tools as well.
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; Kate
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: Although not exactly an IDE, KDE's premiere [https://kate-editor.org/ Advanced Text Editor] has features and plugins that simplify the software development workflow, from syntax highlighting and code folding to project management to an embedded terminal emulator.
  
 
== Debugging and Analysis ==
 
== Debugging and Analysis ==
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; MS Windows tools (Process Explorer, Console, WinDbg, DebugView...)
 
; MS Windows tools (Process Explorer, Console, WinDbg, DebugView...)
 
: More info on the [[Projects/KDE_on_Windows/Tools|KDE on Windows page]].
 
: More info on the [[Projects/KDE_on_Windows/Tools|KDE on Windows page]].
 
== Development Tools ==
 
; Qt Creator
 
: With Qt Creator it is easy to write new KDE based programs and to integrate existing ones into an IDE. Further details can be found in the tutorial [[Development/Tutorials/Using_Qt_Creator|Using Qt Creator]].
 
 
; KDevelop
 
: [http://www.kdevelop.org KDevelop] is an IDE for developing KDE and Qt C++ applications. It includes a an integrated debugger, a powerful editor with syntax highlighting, a ''Project wizard'' to create applications from templates, the automake/autoconf gunk, and even the class documentation. Further details can also be found in the [http://userbase.kde.org/KDevelop4 wiki].
 
 
; Eclipse
 
: It is possible to develop C++, Qt and KDE software using Eclipse as your IDE. Further details can be found on the [[Development/Tools/Eclipse|Eclipse page]].
 
 
; MS Visual Studio® Express IDE (Windows only)
 
: [http://www.microsoft.com/exPress/ Visual C++® Express] is the free version of the Microsoft Visual Studio compiler from Microsoft, which is officially supported by Nokia. It is a choice for compiling Qt and KDE applications on Windows. [[Projects/KDE_on_Windows/Issues/MSVC|more info...]]
 
  
 
== Internationalization (i18n) Tools ==
 
== Internationalization (i18n) Tools ==

Revision as of 05:00, 2 June 2019

Warning.png
Warning
This page needs a review and probably holds information that needs to be fixed.

Parts to be reviewed:

Needs to be updated and directed towards external developers

The KDE Community produces libraries and tools for software development but, aside from Qt and CMake, doesn't prescribe which one to use. Here is just a sample of the various tools you can use when developing software that uses KDE APIs or contributing to KDE applications themselves.

Core Tools

These are the tools that are absolutely required to build and develop KDE software. On Linux, they will typically be provided by your distribution. On other platforms, packages should normally be available, often for download directly from the home page for the tool. Of course, the standard development tools, such as a C/C++ compiler and some sort of text editor, are also required.

CMake
CMake is KDE's build system of choice. Once you have this, you can use it to configure a software project for building, and that process will tell you of any other requirements you are missing. NOTE: KDE Frameworks can also be used in QMake-based projects.
Git
Most KDE projects are developed in Git, and so you will need it to get the latest development version of the source code. KDE also provides source code tarballs for the most recent releases. You can find the relevant Git URLs at the KDE Git repository browser.
Subversion
Some KDE projects still use Subversion for some things, notably translations. Third-party developers mostly don't need to bother with this but contributors should take note of it.

Development Environments and Editors

Qt Creator
Qt application developers are most likely already using Qt Creator as their IDE. The good news is that they don't need to swich away from it just to use KDE Frameworks. Simply add the appropriate module to the QMake project file as indicated by each one's API documentation and you're good to go.
KDevelop
KDevelop is a powerful IDE for developing KDE and Qt C++ applications. Unlike Qt Creator, however, it isn't limited to just that use case and supports other languages, libraries, and tools as well.
Kate
Although not exactly an IDE, KDE's premiere Advanced Text Editor has features and plugins that simplify the software development workflow, from syntax highlighting and code folding to project management to an embedded terminal emulator.

Debugging and Analysis

A list of tools which are used to analyze a program. This includes debuggers and profilers, for instance.

Valgrind
Valgrind helps to find memory leaks and uninitialized memory blocks. Additional features are a profiler and more. Valgrind is one of the most important development tools!
The GNU Project Debugger (GDB)
GDB helps in debugging source code. As GDB evolved over time it is recommended to use version 6.x. Graphical frontends are available (see below). See also the debugging tutorial Debugging with GDB.
KDbg and DDD
KDbg and DDD are graphical user interfaces to GDB, which are able to set breakpoints, step through the code etc.
MS Windows tools (Process Explorer, Console, WinDbg, DebugView...)
More info on the KDE on Windows page.

Internationalization (i18n) Tools

Lokalize
Lokalize is a computer-aided translation system that focuses on productivity and quality assurance. It has components usual for CAT tools: translation memory, glossary, and also a unique translation merging (synchronization) capability. It is targeted for software translation and also integrates external conversion tools for freelance office document translation.
Dr. Klash
This little utility, once activated, can present a report about conflicting shortcuts in menus. Not only is this helpful for translators but also for developers. A little hand editing of `kde-config --localprefix`/share/config/kdeglobals activates this feature:
[Development]
CheckAccelerators=F12
AutoCheckAccelerators=false
AlwaysShowCheckAccelerators=false
Pressing F12 will show a dialog containing which accelerators in the currently focussed interface conflict and provide suggestions for new accelerators. If no accelerators conflict or Dr. Klash has nothing to suggest, no popup dialog will be displayed.
With AutoCheckAccelerators enabled the dialog will popup automatically if a conflict exists and AlwaysShowCheckAccelerators can force the dialog to always popup even if there are no conflicts to report.
The x-test language
This helper language serves as a debugging aid for people finding untranslated strings in applications. If you start your application with the "x-test" locale, all translated strings will appear with trailing and leading xx's. First you have to check out these "translations" from l10n-kde4/x-test and install them.
After you've built l10n-kde4/x-test and installed it, run your application using the "x-test" locale. This can be done by launching it from the command line like this:
> KDE_LANG=x-test kspread
This will start KSpread using the "x-test" locale no matter what your current language setting is. Look for strings that do not have the xx's. If xx's are missing from a string, it could be due to missing i18n calls or even missing or incorrectly generated .pot files. Consult the i18n tutorials for further information.
When checking for untranslated strings, be sure to check all the WhatsThis help and tooltips.

Examining .po files

You can look at the translated .po files to see if a string is present and has been translated. For example, here's a portion of l10n/de/messages/kdebase/konqueror.po:

#: konq_mainwindow.cc:3707 konq_tabs.cc:84
msgid "&New Tab"
msgstr "Neues &Unterfenster"

The string to be translated is given on the msgid line. The translated string is on the msgstr line. Notice that the exact same string to translate came from konq_mainwindow.cc and also from konq_tabs.cc. This saves the translators from having to translate the same identical string twice.

You can also use Lokalize to examine .po files. Lokalize is part of the kdesdk module.

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Note
More information on writing and translating documentation can be found on the l10n project site.


Helper Tools

Get information about KDE's installation - kde-config
The tool kde-config helps to find out more about a KDE installation.
Driving Konqueror From Scripts - kfmclient
kfmclient is a small tool to communicate with Konqueror.
Updating User Configuration Files - kconf_update
kconf_update is a tool designed to update config files.
Generating apidox
tools that help develop and generate API documentation for your code.
Automoc4
This is a helper tool needed to build KDE4. It automatically generates moc-files.
svnmerge.py
This tool helps keeping track of merges between different SVN branches

Quality Assurance

Project Management
KDE is transitioning to [phabricator.org Phabricator] for project management. You can get started with Phabricator on the getting started page. The older Review Board is limited to code reviews only: see here for more details.
Continuous Building - Jenkins
Jenkins
kdelibs on kitware
English Breakfast Network - Static Analysis
Krazy - Code Analysis, Usage Tutorial
APIDOX - API Documentation Statistics
Sanitizer - DocBook Checker
Usability Checks

Content is available under Creative Commons License SA 4.0 unless otherwise noted.