Completer Example. Files: The Completer example shows how to provide string-completion facilities for an input widget based on data provided by a model.
This example uses a custom item model, FileSystemModel, and a QCompleter object. QCompleter is a class that provides completions based on an item model. The type of model, the completion mode, and the case sensitivity can be selected using combo boxes. The Resource File The Completer example requires a resource file in order to store the countries.txt and words.txt. <! FileSystemModel Class Definition The FileSystemModel class is a subclass of QFileSystemModel, which provides a data model for the local filesystem. This class only has a constructor and a data() function as it is only created to enable data() to return the entire file path for the display role, unlike QFileSystemModel's data() function that only returns the folder and not the drive label. Git Repositories - lineeditclearbutton.git/blob - lineedit.h. Git Repositories - lineeditclearbutton.git/blob - lineedit.cpp. How to Install Qt SDK on Ubuntu Linux (with Pictures.
Qt 5 and SFML 2.0 Integration. Hi all!
Today, I'm gonna show you my last fight and victory (for now :)). The goal: integrating SFML with Qt. Yeah, too many abbreviations... ok, let's go step by step. SFML, as mentioned in earlier posts, is an efficient, easy to learn library that wraps OpenGL as a set of higher-level classes and methods. As its main purpose is to draw (or technically, render) things on the screen, it is usually referred as a renderer library.
On the other hand, Qt (pronounced 'cute'), is a framework for developing Graphical User Interfaces (GUI) applications. The question is: why would it be a good idea to integrate these two libraries? In addition, Qt brings a very complete IDE (Integrated Development Environment) for C++, which according to many people in forums, it is better if you want to work in C++ than XCode (the Mac OS default IDE), which is more fine-tuned to work with Objective-C. First of all, the specification of the problem: Operating System: Mac OS X 10.7.5. Les threads sans maux de tête. Les Qt Labs Blogs sont des blogs tenus par les développeurs de Qt, concernant les nouveautés ou les utilisations un peu extrêmes du framework.
Nokia, Qt et leurs logos sont des marques déposées de Nokia Corporation en Finlande et/ou dans les autres pays. Les autres marques déposées sont détenues par leurs propriétaires respectifs. Cet article est la traduction du billet Threading without the headache, par Bradley T. Hughes. Il y a quelques semaines, j'ai tenté de savoir si une fonction virtuelle pure pouvait être rendue non pure sans casser la compatibilité binaire.
Joypick - Revision 4: /trunk. Introducing the Qt WebEngine. [Qt] Communication client/serveur. Model/View Tutorial. Every UI developer should know about ModelView programming and the goal of this tutorial is to provide you with an easily understandable introduction to this topic.
Table, list and tree widgets are components frequently used in GUIs. There are 2 different ways how these widgets can access their data. The traditional way involves widgets which include internal containers for storing data. This approach is very intuitive, however, in many non-trivial applications, it leads to data synchronization issues. The second approach is model/view programming, in which widgets do not maintain internal data containers. In the process, we will learn about some basic technologies provided by Qt, such as: The difference between standard and model/view widgetsAdapters betweeen forms and modelsDeveloping a simple model/view applicationPredefined modelsIntermediate topics such as:Tree viewsSelectionDelegatesDebugging with model test 1.
Twitter Integration to Qt using Qt WebKit. Compiler et mettre en place le pilote MySQL pour Qt. On va tout d'abord préparer la compilation du pilote QMYSQL. Tout d'abord, il faut télécharger et installer le package MySQL, téléchargeable sur le site officiel . Choisissez votre système d'exploitation puis la version qui correspond à votre architecture. Pour ceux qui choisiront une archive, il faut prendre la plus volumineuse et non celle à environ 30 Mo ! Cette dernière ne contient pas les fichiers nécessaires à la compilation de QMYSQL.
Ici, on choisit Windows comme système, puis l'installeur MSI qui correspond à mon architecture (32-bit). Une fois le téléchargement fini, exécuter le fichier pour l'installeur ou décompresser l'archive et en placer le contenu dans un répertoire au choix mais sans espace dans le chemin ! Pour l'installeur, cliquez sur Next et laisser les réglages par défaut. Dérouler le menu Development Components en cliquant sur le petit + à coté, puis cliquer sur la croix à coté de Embedded server library et choisissir Will be installed on local hard drive . Qt - Informatique - Tutoriels. QLineEdit subclass with clear button (in English) Sweep, sweep, sweep the ui floor. There is a saying known throughout the software industry: "Make it work, make it right, make it fast.
" Essentially this piece of received wisdom informs us that we should first worry about making the software work, then worry about making it correct, then worry about making it perform quickly enough. This concept has been around at least since the early 80s and became part of the "UNIX Way". Does this 30+ year-old saying still hold in 2015? Not nearly as well as it did when it was first uttered.
In the 1980s, and really right up into the 2000s, one could reasonably expect that the computer you used less than two years from now would be more than twice as powerful. This was the age of single computer systems. This was also the age of single core systems. Lineedit with a clear button. WwWidgets. Overview wwWidgets is a professional set of useful widgets for Qt 4 and Qt 5.
It consists of several different widgets that are either enhanced versions of widgets bundled with Qt or completely new ones that implement functionality not available in Qt including custom multipage container widgets that can hold other widgets. The classes follow all guidelines for building new widgets. Thanks to that they can be used with different widget styles (like Plastique or WindowsXP) and they are easily stylable using Qt style sheets allowing a perfect blend with the rest of your application.
All widgets can be used directly from within Qt Designer thanks to the widget plugin acompaniating the library. WwWidgets are well documented, after installing the package, the reference is available from within Qt Assistant. Gallery Download Installation Extract the archive to a temporary directory. If you are using Windows, you can use install a pre-compiled version of wwWidgets. Usage. Qt - Detecting enter on a QLineEdit or QPushButton. How to do - inside in QlineEdit insert the button.[pyqt4] Qt Articles:Qt sample codes,Qt programming.