< Guidelines and HOWTOs This page contains changes which are not marked for translation. Warning This page needs a review and probably holds information that needs to be fixed. Parts to be reviewed: Content is severely outdated. Contents 1 Why use Qt Creator 2 Creating a new program 2.1 Using KDE libraries 2.2 Adding a toolbar 3 Load an existing project 3.1 Use code from your disk 3.2 Have QtCreator do the git checkout 3.3 Have QtCreator do the subversion checkout 3.4 Run cmake 3.5 Build it 4 See also QtCreator is an IDE from Nokia for Qt. It contains QtDesigner for UI design. This article describes: why to use Qt Creator how to create a new application how to load an existing application Why use Qt Creator KDE4's ktimetracker loaded as QtCreator project To create your C++ applications you can use any text editor. But life will be much easier if you gain QtCreator's features. That means you can get your source code saved, built and run with one click you get code-completion you can find all places in your source code where you call a function (e.g. "where do I call refresh()") you can go back to a more recent cursor position with your editor, even if this is in another file you can checkout and commit to Subversion or Git repositories without leaving your workflow Creating a new program Here is a short example of how you can create a "hello world" application. For more information read the user documentation. Step 0 Call QtCreator qtcreator Then select New File or Project -> Qt C++ Project -> Qt Gui Application -> name = helloworld -> Next -> Next -> Finish Step 1 Select Edit -> Forms -> mainwindow.ui. Add the widgets you want by drag-and-drop: Step 2 Select the mainwindow. This is the one un-intuitive step. To lay out the objects in the mainwindow, you do not select the objects in the mainwindow, but the mainwindow itself. Step 3 Select Form -> Lay Out in a Grid Result You get a decent look, and if you resize the window, the widgets resize as well. Using KDE libraries To use KDE classes like KMessageBox, you need to tell QtCreator to use the KDE libraries when building. Go to your home directory, change into yourproject and modify yourproject.pro. Add the line LIBS += -lkdeui Then you can start using KDE classes in your code. Adding a toolbar To add a toolbar, right-click on the UI and choose "Add Toolbar". Then you can set icons and text in your mainwindow's constructor with code like this: ui->toolBar->addAction(QIcon("/usr/share/icons/oxygen/22x22/apps/ktip.png"),"hello world"); More Info... Load an existing project This describes how to use QtCreator to integrate existing KDE 4 applications. It has been tested with QtCreator 1.2.80 and SUSE Linux 11.1 but should work same or similar with every combination. As an example KDE application we use ktimetracker from the kdepim module, other applications should work likewise. You can either work with code on your disk or have QtCreator do the repository checkout. Use code from your disk import the CMakeLists.txt file (File -> Open -> kdepim/CMakeLists.txt) as build directory choose kdepim you will automatically come to a screen where you can run CMake continue with the step "Run cmake" Have QtCreator do the git checkout choose File -> New File or Project -> Import Project -> Git Repository Clone. enter a Git URL like [email protected]:/kdepim accept kdepim as checkout directory type finish, see how the checkout starts Note If the checkout fails with the message "remote host hung up unexpectedly" do a checkout from konsole. You may have to accept git.kde.org's fingerprint. you will automatically come to a screen where you can run CMake continue with the step "Run cmake" Have QtCreator do the subversion checkout choose File -> New File or Project -> Import Project -> Subversion Checkout. enter a Subversion URL like svn://anonsvn.kde.org/home/kde/trunk/KDE/kdepim enter a checkout directory, i.e. the local directory where the code will be checked-out to type finish, see how the checkout starts you will automatically come to a screen where you can run CMake continue with the step "Run cmake" Run cmake enter arguments for CMake like /path/to/kdepim -DCMAKE_INSTALL_PREFIX=/usr/local -DLIB_SUFFIX=64 -DCMAKE_BUILD_TYPE=debugfull DLIB_SUFFIX=64 means that you want to install your libraries into directories named lib64, not lib. /path/to/kdepim is where your source code is. click "Run cmake" note: a .cbp file is created containing many information about the build click "Finish" Build it configure QtCreator to build only ktimetracker: Projects -> Active run configuration=ktimetracker -> build settings -> build steps -> make -> show details -> activate ktimetracker. configure QtCreator to use 8 logical processors: Projects -> Active run configuration=ktimetracker -> build settings -> build steps -> make -> show details -> addtional Arguments = -j8 choose Build -> Build All See also Guidelines and HOWTOs/Using Qt Designer Getting_Started/Using_an_IDE_with_KDE4#QtCreator Retrieved from "https://community.kde.org/index.php?title=Guidelines_and_HOWTOs/Using_Qt_Creator&oldid=84652" Category: KDE4 This page was last edited on 2 June 2019, at 04:55. 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