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QtCreator is an IDE from Nokia for Qt. It contains QtDesigner for UI design. This article describes:
Qt creator est un IDE développé par Nokia pour Qt. Il contient Qt designer pour le design d'Interfaces Utilisateur. Cet article décrit :
* why to use Qt Creator
* pourquoi utiliser Qt Creator
* how to create a new application
* comment créer une nouvelle application
* how to load an existing application
* comment charger une application déjà existante


== Pourquoi utiliser Qt Creator ==
== Pourquoi utiliser Qt Creator ==
Line 12: Line 12:
|[[image:Snapshot-qtcreator.png|right|thumb|200px|KDE4's ktimetracker loaded as QtCreator project]]
|[[image:Snapshot-qtcreator.png|right|thumb|200px|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
Pour créer votre application C++ vous pourriez utiliser n'importe quel éditeur de texte. Mais les possibilités de Qt Creator vont grandement vous faciliter la vie. Par exemple
* you can get your source code saved, built and run with one click
* vous pouvez charger un code sauvegardé, compiler et executer en un clic
* you get code-completion
* vous aurez la completion de code
* you can find all places in your source code where you call a function (e.g. "where do I call refresh()")
* vous pouvez retrouver tous les endroits dans votre code ou vous appelez une fonction (e.g. "où est-ce que j'appelle la fonction refresh()")
* you can go back to a more recent cursor position with your editor, even if this is in another file
*vous pouvez retourner à une position de curseur plus récente avec votre éditeur, même dans un autre fichier
* you can checkout and commit to Subversion or Git repositories without leaving your workflow
* vous pouez checkout et commit vers des dépots Subversion or Git sans même quitter votre environnement


== Créer un nouveau programme ==
== Créer un nouveau programme ==


Here is a short example of how you can create a "hello world" application. For more information read the [http://qt.nokia.com/doc/designer-manual.html user documentation].
Voici un exemple simple de création d'un "Hello World".
Pour plus d'informations lire [http://qt.nokia.com/doc/designer-manual.html user documentation].


;Step 0:
;Étape 0:
Call QtCreator
Lancer QtCreator
<syntaxhighlight lang="bash">
<syntaxhighlight lang="bash">
qtcreator
qtcreator
</syntaxhighlight>
</syntaxhighlight>
Then select New File or Project -> Qt C++ Project -> Qt Gui Application -> name = helloworld -> Next -> Next -> Finish
Puis sélectionnez Nouveau fichier ou projet -> Applications -> Application graphique Qt -> Nom = helloworld -> Suivant -> Suivant -> Terminer


;Step 1:
;Step 1:
Line 45: Line 46:
[[File:Designer-step3.png|200px]]
[[File:Designer-step3.png|200px]]


;Result:
;Résultat:
You get a decent look, and if you resize the window, the widgets resize as well.
Vous obtenez un aspect convenable , et si vous redimensionnez la fenêtre, les widgets seront redimensionnés aussi.


[[File:Designer-result.png|200px]]
[[File:Designer-result.png|200px]]


=== Using KDE libraries ===
=== Utiliser les librairies KDE ===


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
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
Line 58: Line 59:
Then you can start using KDE classes in your code.
Then you can start using KDE classes in your code.


=== Adding a toolbar ===
=== Ajouter une barre d'outils ===


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:
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:
Line 66: Line 67:
[[Development/Tutorials/Using_Qt_Designer|More Info...]]
[[Development/Tutorials/Using_Qt_Designer|More Info...]]


== Load an existing project ==
== Charger un projet existant ==


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 [http://userbase.kde.org/ktimetracker ktimetracker] from the kdepim module, other applications should work likewise.
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 [http://userbase.kde.org/KTimeTracker 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.
You can either work with code on your disk or have QtCreator do the repository checkout.


=== use code from your disk ===
=== Utiliser un code local ===


* import the CMakeLists.txt file (File -> Open -> kdepim/CMakeLists.txt)
* import the CMakeLists.txt file (File -> Open -> kdepim/CMakeLists.txt)
Line 79: Line 80:
* continue with the step "Run cmake"
* continue with the step "Run cmake"


=== have QtCreator do the git checkout ===
=== Utiliser QtCreator pour faire un checkout d'un dépôt Git ===


* choose File -> New File or Project -> Project from Version Control -> Git Repository Clone.
* choose File -> New File or Project -> Import Project -> Git Repository Clone.
* enter a Git URL like [email protected]:/kdepim
* enter a Git URL like [email protected]:/kdepim
* accept kdepim as checkout directory
* accept kdepim as checkout directory
Line 89: Line 90:
* continue with the step "Run cmake"
* continue with the step "Run cmake"


=== have QtCreator do the subversion checkout ===
=== Utiliser QtCreator pour faire un checkout d'un dépôt subversion ===


* choose File -> New File or Project -> Version Control -> 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 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
* enter a checkout directory, i.e. the local directory where the code will be checked-out to
Line 98: Line 99:
* continue with the step "Run cmake"
* continue with the step "Run cmake"


=== Run cmake ===
=== Lancer cmake ===


* enter arguments for CMake like  
* enter arguments for CMake like  
<syntaxhighlight lang="bash">
<syntaxhighlight lang="bash">
/root/kdepim -DCMAKE_INSTALL_PREFIX=/usr/local -DLIB_SUFFIX=64 -DCMAKE_BUILD_TYPE=debugfull
/path/to/kdepim -DCMAKE_INSTALL_PREFIX=/usr/local -DLIB_SUFFIX=64 -DCMAKE_BUILD_TYPE=debugfull
</syntaxhighlight>
</syntaxhighlight>
<tt>DLIB_SUFFIX=64</tt> means that you want to install your libraries into directories named <tt>lib64</tt>, not <tt>lib</tt>. ''/root/kdepim'' is where your source code is.
<tt>DLIB_SUFFIX=64</tt> means that you want to install your libraries into directories named <tt>lib64</tt>, not <tt>lib</tt>. ''/path/to/kdepim'' is where your source code is.
* click "Run cmake"
* click "Run cmake"
* note: a .cbp file is created containing many information about the build
* note: a .cbp file is created containing many information about the build
Line 117: Line 118:
* choose Build -> Build All
* choose Build -> Build All


== See also ==
== Voir aussi ==


* [[Development/Tutorials/Using Qt Designer]]
* [[Development/Tutorials/Using Qt Designer]]
* [[Getting_Started/Using_an_IDE_with_KDE4#QtCreator]]
* [[Getting_Started/Using_an_IDE_with_KDE4#QtCreator]]
[[Category:KDE4]]
[[Category:KDE4]]

Latest revision as of 11:36, 26 May 2019

Qt creator est un IDE développé par Nokia pour Qt. Il contient Qt designer pour le design d'Interfaces Utilisateur. Cet article décrit :

  • pourquoi utiliser Qt Creator
  • comment créer une nouvelle application
  • comment charger une application déjà existante

Pourquoi utiliser Qt Creator

KDE4's ktimetracker loaded as QtCreator project

Pour créer votre application C++ vous pourriez utiliser n'importe quel éditeur de texte. Mais les possibilités de Qt Creator vont grandement vous faciliter la vie. Par exemple

  • vous pouvez charger un code sauvegardé, compiler et executer en un clic
  • vous aurez la completion de code
  • vous pouvez retrouver tous les endroits dans votre code ou vous appelez une fonction (e.g. "où est-ce que j'appelle la fonction refresh()")
  • vous pouvez retourner à une position de curseur plus récente avec votre éditeur, même dans un autre fichier
  • vous pouez checkout et commit vers des dépots Subversion or Git sans même quitter votre environnement

Créer un nouveau programme

Voici un exemple simple de création d'un "Hello World". Pour plus d'informations lire user documentation.

Étape 0

Lancer QtCreator 

qtcreator

Puis sélectionnez Nouveau fichier ou projet -> Applications -> Application graphique Qt -> Nom = helloworld -> Suivant -> Suivant -> Terminer

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

Résultat

Vous obtenez un aspect convenable , et si vous redimensionnez la fenêtre, les widgets seront redimensionnés aussi.

Utiliser les librairies KDE

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.

Ajouter une barre d'outils

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...

Charger un projet existant

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.

Utiliser un code local

  • 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"

Utiliser QtCreator pour faire un checkout d'un dépôt Git

  • 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"

Utiliser QtCreator pour faire un checkout d'un dépôt subversion

  • 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"

Lancer 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

Voir aussi

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