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  • Book Overview & Buying Cross-Platform Development with Qt 6 and Modern C++
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Cross-Platform Development with Qt 6 and Modern C++

Cross-Platform Development with Qt 6 and Modern C++

By : Nibedit Dey
4.2 (32)
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Cross-Platform Development with Qt 6 and Modern C++

Cross-Platform Development with Qt 6 and Modern C++

4.2 (32)
By: Nibedit Dey
Buy this Book

Overview of this book

Qt is a cross-platform application development framework widely used for developing applications that can run on a wide range of hardware platforms with little to no change in the underlying codebase. If you have basic knowledge of C++ and want to build desktop or mobile applications with a modern graphical user interface (GUI), Qt is the right choice for you. Cross-Platform Development with Qt 6 and Modern C++ helps you understand why Qt is one of the favorite GUI frameworks adopted by industries worldwide, covering the essentials of programming GUI apps across a multitude of platforms using the standard C++17 and Qt 6 features. Starting with the fundamentals of the Qt framework, including the features offered by Qt Creator, this practical guide will show you how to create classic user interfaces using Qt Widgets and touch-friendly user interfaces using Qt Quick. As you advance, you'll explore the Qt Creator IDE for developing applications for multiple desktops as well as for embedded and mobile platforms. You will also learn advanced concepts about signals and slots. Finally, the book takes you through debugging and testing your app with Qt Creator IDE. By the end of this book, you'll be able to build cross-platform applications with a modern GUI along with the speed and power of native apps.
Table of Contents (17 chapters)
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Preface
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Preface
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Who this book is for
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What this book covers
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To get the most out of this book
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Download the example code files
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Download the color images
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Conventions used
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Get in touch
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1
Section 1: The Basics
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Section 1: The Basics
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2
Chapter 1: Introduction to Qt 6
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Chapter 1: Introduction to Qt 6
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Technical requirements
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Introducing Qt
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Reasons for using Qt
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Downloading and installing Qt
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Building Qt 6 from source
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Summary
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Chapter 2: Introduction to Qt Creator
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Chapter 2: Introduction to Qt Creator
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Technical requirements
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Exploring the Qt Creator UI
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Building a simple Qt application
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Understanding advanced options
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Summary
4
Chapter 3: GUI Design Using Qt Widgets
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Chapter 3: GUI Design Using Qt Widgets
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Technical requirements
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Introducing Qt widgets
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Creating a UI with Qt Designer
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Managing layouts
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Creating custom widgets
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Creating Qt Style Sheets and custom themes
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Exploring custom styles
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Using widgets, windows, and dialogs
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Summary
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Chapter 4: Qt Quick and QML
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Chapter 4: Qt Quick and QML
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Technical requirements
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Getting started with QML and Qt Quick
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Understanding Qt Quick Controls
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Creating a simple Qt Quick application
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Designing a UI with Qt Quick Designer
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Positioners and layouts in QML
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Integrating QML with C++
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Integrating QML with JS
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Handling mouse and touch events
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Summary
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Section 2: Cross-Platform Development
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Section 2: Cross-Platform Development
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Chapter 5: Cross-Platform Development
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Chapter 5: Cross-Platform Development
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Technical requirements
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Understanding cross-platform development
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Understanding compilers
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Building with qmake
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Qt Project (.pro) files
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Understanding build settings
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Platform-specific settings
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Using Qt with Microsoft Visual Studio
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Running a Qt application on Linux
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Running a Qt application on macOS and iOS
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Other Qt-supported platforms
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Porting from Qt 5 into Qt 6
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Summary
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Section 3: Advanced Programming, Debugging, and Deployment
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Section 3: Advanced Programming, Debugging, and Deployment
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Chapter 6: Signals and Slots
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Chapter 6: Signals and Slots
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Technical requirements
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Understanding Qt signals and slots
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The working mechanism of Qt signals and slots
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Getting to know Qt's property system
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Using signals and slots in Qt Designer
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Understanding signals and the handler event system in QML
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Understanding events and the event loop
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Managing events with an event filter
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Drag and drop
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Summary
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Chapter 7: Model View Programming
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Chapter 7: Model View Programming
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Technical requirements
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Understanding the M/V architecture
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Creating a simple Qt Widgets application using the M/V pattern
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Understanding Models and Views in QML
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Using C++ Models with QML
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Creating a simple M/V application with Qt Quick
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Summary
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Chapter 8: Graphics and Animations
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Chapter 8: Graphics and Animations
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Technical requirements
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Understanding Qt's graphics framework
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QPainter and 2D graphics
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Introducing the Graphics View framework
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Understanding the Qt OpenGL module
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Graphics in Qt Quick
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Understanding the Qt Quick scene graph
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Shader effects
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Using the Canvas QML type
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Understanding particle simulations
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Animation in Qt Widgets
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Animation and transitions in Qt Quick
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States, state machine, and transitions in Qt Quick
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The state machine in Qt Widgets
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Summary
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Chapter 9: Testing and Debugging
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Chapter 9: Testing and Debugging
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Technical requirements
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Debugging in Qt
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Debugging strategies
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Debugging a C++ application
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Debugging a Qt Quick application
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Testing in Qt
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Integrating with Google's C++ testing framework
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Testing Qt Quick applications
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GUI testing tools
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Summary
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Chapter 10: Deploying Qt Applications
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Chapter 10: Deploying Qt Applications
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Technical requirements
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Understanding the need for deployment
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Deploying on desktop platforms
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Using the Qt Installer Framework
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Deploying on Android
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Other installation tools
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Summary
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Chapter 11: Internationalization
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Chapter 11: Internationalization
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Technical requirements
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Understanding internationalization and Qt Linguist
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Writing source code for translation
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Loading translations in a Qt application
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Switching languages dynamically
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Internationalization with Qt Widgets
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Internationalization with Qt Quick
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Deploying translations
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Summary
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Chapter 12: Performance Considerations
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Chapter 12: Performance Considerations
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Technical requirements
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Understanding performance optimization
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Optimizing C++ code
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Using concurrency, parallelism, and multithreading
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Profiling a Qt Quick application using QML Profiler and Flame Graph
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Other Qt Creator analysis tools
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Optimizing graphical performance
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Creating benchmarks
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Different analysis tools and optimization strategies
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Performance considerations for Qt Widgets
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Learning best practices of QML coding
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Summary
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Why subscribe?
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Reasons for using Qt

Qt is a modular, cross-platform application development framework. The biggest misunderstanding about Qt is that many people consider it as a GUI framework. However, Qt is much more than a GUI framework. It not only comprises a GUI module, but also a set of modules to make application development faster and easier to scale on various platforms. The biggest benefit of using Qt is its ability to provide portability to various platforms. Here are some advantages of using Qt for developers:

  • You can create incredible user experiences for your customers and boost your company brand using Qt.
  • Cross-platform development saves both time and money. You can target multiple platforms with the same code base.
  • Qt is known for making C++ easy and accessible. With Qt, developers can easily create high-performance, scalable applications with a fluid UI.
  • Due to the open source model, the framework is future-proof, along with a great ecosystem.
  • It further supports different programming languages and is a very flexible and reliable framework. Consequently, there are great companies such as Adobe, Microsoft, Samsung, AMD, HP, Philips, and MathWorks using Qt for their applications. Many open source projects such as VLC (previously known as VideoLAN Client), Open Broadcaster Software (OBS), and WPS Office (where WPS stands for Writer, Presentation, and Spreadsheets) are also built on Qt.

The core values of Qt are outlined as follows:

  • Cross-platform nature
  • Highly scalable
  • Very easy to use
  • Built-in with world-class application programming interfaces (APIs), tools, and documentation
  • Maintainable, stable, and compatible
  • A large community of users

Whether you are a hobbyist, a student, or working for a company, Qt provides great flexibility to use its modules as per your requirement. Many universities are using Qt as one of their coursework subjects. So, Qt is a great choice for programmers to start building new applications with ready-made features. Let's start by downloading and installing Qt 6 on your machine.

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Cross-Platform Development with Qt 6 and Modern C++
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