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ac6 >> ac6-training >> Systèmes d'Exploitation >> Linux >> Embedded GUIs with Qt Télécharger le catalogue Télécharger la page Ecrivez nous Version imprimable

Q1 Embedded GUIs with Qt

Embedded GUIs with Qt

Embedded GUIs with Qt
formateur
Objectives
  • Installing Qt 5 and the needed components on an embedded platform
  • Writing Qt applications
  • Discovering Qt key components
  • Understanding the proper use of threads in Qt applications
Labs are conducted on target boards, that can be:
    Quad Cortex/A9-based "Sabre" boards from NXP, with Lauterbach JTAG probes.
    Dual Cortex/A9-based "Panda ES" boards from Texas Instruments, with Lauterbach JTAG probes.
    Atmel ARM9-based boards, with Lauterbach JTAG probes.
Course environment
  • Printed course material (in English)
  • One Linux PC for two trainees.
  • One target platform (i.MX6 Sabre or PandaBoard ES) for two trainees
Prerequisite
  • Good knowledge of C++ language

FIRST DAY
Introduction
  • History
  • Versions
  • Licenses
  • Components
  • Qt Quick
Qt basics
  • Hello world application
  • Compiling and cross-compiling a Qt application
  • The main mechanisms of Qt
    • MOC (Meta Object Compiler)
    • Main loop
    • Signals and slots
    • Introspection
    • Asynchronous calls
  • Creation of a Qt application on Linux
    • Creation of Qt projects
    • Compiling
  • Main classes
    • Base classes
    • Main widgets
    • Utilities
  • The development tools for Qt
    • QT Designer
    • QtCreator
    • Qmake
Exercise :  Hello world application
Qt widgets
  • Basic widgets
    • Labels, buttons, …
  • Layouts
  • Dialogs
    • Custom dialogs
    • Standard dialogs
Exercise :  Writing an application combining various widgets
Exercise :  Writing a custom dialog
SECOND DAY
Threading
  • Threading model
  • Launching a worker thread
  • Synchronization
  • Queuing work to the GUI thread
  • Timers
Exercise :  Writing a multi-threaded application
Custom widget
  • 2D drawing
  • Handling mouse, touch screen and keyboard events
Exercise :  Moving an image on screen
Model/view
  • Model/View concept
  • Model/View widget vs Standard Widget
  • Standard models
  • Writing a custom model
  • Views
Exercise :  Using a QListView
THIRD DAY
Install
  • Low-level graphism
    • Frame buffer
    • Open GL ES and EGL
    • X Server
    • Wayland
  • Qt platform plugins
    • EGLFS
    • LinuxFB
    • XCB (X server)
    • Wayland
  • Low-level input subsystem
    • Input drivers
    • Tslib
    • Multi-touch protocol
  • Configuring input in Qt
  • Cross-compiling and installing Qt
    • Build system
    • Main options
Exercise :  cross-compiling and installing Qt5 on an embedded board
Open GL ES 1.1 and 2.0
  • Presentation of Open GL
    • Various Open GL versions
  • Base concepts
    • Notion of state in OpenGL
    • Vertices and Triangles
    • Transformations
    • Drawing
    • Textures
    • Shaders
  • OpenGL and OpenGL/ES
  • Drawing in OpenGL
    • Vertices and index arrays
    • Drawing items
    • Projections
    • Viewpoints
  • Transformation matrixes
    • Loading and initialization
    • Translations and rotations
    • Save and restore (Matrix stack)
  • OpenGL shaders
    • OpenGL Shading Language (GLSL)
    • Vertex shaders
    • Fragment shaders
    • Applying transformations
  • OpenGL rendering model
    • Surfaces
    • Rendering operators
    • Offscreen rendering
  • OpenGL in Qt 5
    • Raw Opengl with Qt OpenGL module (QGLWidget class)
    • Qt wrappers above OpenGL ES of Qt GUI module (QOpenGLContext)
Exercise :  Rotating cube
FOURTH DAY
Multimedia support
  • Multimedia in Linux
    • Gstreamer
  • Multimedia in Qt 5
    • QtMulimedia module
    • Audio, Video Camera, MediaPlayer and Radio
Exercise :  Playing a video file
Qt Quick
  • QML
    • Elements and properties
    • Javascript
  • Main elements and properties
    • User input, state, model and views, …
  • Interactions between C++ and QML
Exercise :  Hello world application with Qt Quick