通过Qt5和C++打造现代GUI应用

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资源摘要信息:"使用C++和Qt5进行动手GUI编程" 知识点概述: 1. Qt 5框架介绍:Qt 5是Qt软件基金会发布的跨平台应用程序开发框架的最新版本,它提供了丰富的模块和工具,用于创建具有复杂用户界面的应用程序。它支持多个平台,包括但不限于Windows、macOS、Linux和嵌入式设备。 2. C++编程语言:本书以C++作为编程语言来使用Qt 5框架,C++是一种通用编程语言,以其性能、效率和系统资源控制能力而著称。Qt 5的大部分功能是通过C++ API提供的。 3. GUI设计与构建:本书主要目的为教授读者如何使用C++和Qt 5设计并构建出功能性、吸引性和用户友好的图形用户界面。 4. 代码组织结构:代码示例表明,代码被组织在以数字开头、后跟应用程序名称的文件夹中。这有助于保持项目的结构化和模块化,从而易于维护和扩展。 5. 示例代码分析:示例中展示了如何在Qt 5框架中使用C++编写简单的GUI应用代码。MainWindow::test()函数展示了如何在Qt 5中进行基本的C++编程,包括变量声明、算术运算和输出调试信息。 深入知识点: Qt 5框架特性: - 模块化:Qt 5提供了许多模块,覆盖网络、数据库、多媒体、Web引擎、GUI组件等领域。 - 信号与槽机制:Qt的核心机制之一,用于对象间的通信,可以实现对象间的解耦合。 - 跨平台:Qt 5支持多种操作系统平台,可实现一次编写,到处运行。 - 高性能:Qt 5优化了性能,特别是在图形渲染和2D/3D图像处理方面。 C++编程语言在Qt 5中的应用: - 类和对象:C++的基本概念,用于在Qt 5中创建窗口、控件等GUI组件。 - 继承和多态:C++的面向对象特性,有助于构建可扩展和灵活的GUI应用程序。 - 模板和STL(标准模板库):C++强大的泛型编程工具,可用于构建复杂的数据结构和算法。 GUI设计与构建实践: - 使用Qt Designer或Qt Creator设计界面:这两个工具可以帮助开发者直观地设计GUI布局,并与代码关联。 - 编写信号与槽连接代码:为了实现用户交互逻辑,需要在C++代码中定义信号和槽,并将它们连接起来。 - 动态内存管理:Qt 5使用QPointer和智能指针来管理对象生命周期,确保资源得到正确释放。 - 事件处理:学习如何响应用户输入和系统事件,例如鼠标点击、键盘输入和窗口事件。 代码组织与结构: - 项目管理:本书采用特定的文件夹组织方式,有助于读者理解项目结构并容易找到相关代码。 - 文件命名规则:遵循数字开头的规则,有利于代码的版本控制和迭代开发。 示例代码理解: - MainWindow类的使用:演示了如何在Qt 5的MainWindow中添加自定义的成员函数。 - 基本C++语法:展示了变量定义、运算符使用和qDebug()函数进行调试输出。 - 简单的逻辑操作:代码中包含了变量的赋值和算术运算,是GUI编程中的基础操作。 总结: 《使用C++和Qt5进行动手GUI编程》是一本专注于使用C++语言结合Qt 5框架进行图形用户界面开发的实践指南。本书不仅涵盖了Qt 5的核心特性和编程模型,还详细介绍了C++语言在GUI开发中的应用。通过对本书的学习,读者可以掌握创建功能丰富、交互性强、跨平台的桌面应用和移动应用的知识和技巧。资源包中的代码文件和文件夹组织提供了一个完整的学习项目,便于读者按照书中的指导逐步构建自己的GUI应用。
2018-05-15 上传
Create visually appealing and feature-rich applications by using Qt 5 and the C++ language Qt 5, the latest version of Qt, enables you to develop applications with complex user interfaces for multiple targets. It provides you with faster and smarter ways to create modern UIs and applications for multiple platforms. This book will teach you to design and build graphical user interfaces that are functional, appealing, and user-friendly. In the initial part of the book, you will learn what Qt 5 is and what you can do with it. You will explore the Qt Designer, discover the different types of widgets generally used in Qt 5, and then connect your application to the database to perform dynamic operations. Next, you will be introduced to Qt 5 chart which allows you to easily render different types of graphs and charts and incorporate List View Widgets in your application. You will also work with various Qt modules, like QtLocation, QtWebEngine, and the networking module through the course of the book. Finally, we will focus on cross-platform development with QT 5 that enables you to code once and run it everywhere, including mobile platforms. By the end of this book, you will have successfully learned about high-end GUI applications and will be capable of building many more powerful, cross-platform applications. What You Will Learn Implement tools provided by Qt 5 to design a beautiful GUI Understand different types of graphs and charts supported by Qt 5 Create a web browser using the Qt 5 WebEngine module and web view widget Connect to the MySQL database and display data obtained from it onto the Qt 5 GUI Incorporate the Qt 5 multimedia and networking module in your application Develop Google Map-like applications using Qt 5’s location module Discover cross-platform development by exporting the Qt 5 application to different platforms Uncover the secrets behind debugging Qt 5 and C++ applications
2019-03-08 上传
Hands-On High Performance Programming with Qt 5: Build cross-platform applications using concurrency, parallel programming, and memory management Author: Marek Krajewski Pub Date: 2019 ISBN: 978-1789531244 Pages: 384 Language: English Format: EPUB Size: 17 Mb Build efficient and fast Qt applications, target performance problems, and discover solutions to refine your code Achieving efficient code through performance tuning is one of the key challenges faced by many programmers. This book looks at Qt programming from a performance perspective. You’ll explore the performance problems encountered when using the Qt framework and means and ways to resolve them and optimize performance. The book highlights performance improvements and new features released in Qt 5.9, Qt 5.11, and 5.12 (LTE). You’ll master general computer performance best practices and tools, which can help you identify the reasons behind low performance, and the most common performance pitfalls experienced when using the Qt framework. In the following chapters, you’ll explore multithreading and asynchronous programming with C++ and Qt and learn the importance and efficient use of data structures. You’ll also get the opportunity to work through techniques such as memory management and design guidelines, which are essential to improve application performance. Comprehensive sections that cover all these concepts will prepare you for gaining hands-on experience of some of Qt’s most exciting application fields – the mobile and embedded development domains. By the end of this book, you’ll be ready to build Qt applications that are more efficient, concurrent, and performance-oriented in nature What you will learn Understand classic performance best practices Get to grips with modern hardware architecture and its performance impact Implement tools and procedures used in performance optimization Grasp Qt-specific work techniques for graphical user interface (GUI) and platform programming Make Transmission Control Protocol (TCP) and Hypertext Transfer Protocol (HTTP) performant and use the relevant Qt classes Discover the improvements Qt 5.9 (and the upcoming versions) holds in store Explore Qt’s graphic engine architecture, strengths, and weaknesses