Learn QT 5 - Nicholas Sherriff.pdfThis is another

文件名称: Learn QT 5 - Nicholas Sherriff.pdf

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详细说明：This is another good book on learning Qt5 very wellLearn Qt 5 Copyright o 2018 Packt Publishing All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means without the prior written permission of the publisher except in the case of brief quotations embedded in critical articles or reviews Every effort has been made in the preparation of this book to ensure the accuracy of the information presented However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing or its dealers and distributors, will be held liable for any damages caused or alleged to have been caused directly or indirectly by this book Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information Commissioning Editor: Kunal Chaudhari Acquisition Editor: Siddharth Mandal Content Development editor: Flavian Vaz Technical Editor: Akhil nair Copy Editor: Shaila Kusanale Project Coordinator: Devanshi Dosh Proofreader: Safis Editing Indexer: Tejal Daruwale soni Graphics: Jason monteiro Production Coordinator: Arvindkumar Gupta First published: Febraury 2018 Production reference: 1060218 Published by Packt Publishing ltd Livery pla 35 Livery street Birmingham B3 2PB, UK ISBN978-1-78847-885-4 www.packtpub.com Mapt mapt. io Mapt is an online digital library that gives you full access to over 5,000 books and videos, as well as industry leading tools to help you plan your personal development and advance our career. For more information please visit our website Why subscribe? Spend less time learning and more time coding with practical eBooks and Videos from over 4, 000 industry professionals Improve your learning with skill plans built especially for you Get a free eBook or video every month Mapt is fully searchable Copy and paste, print, and bookmark content PacktPub, com Did you know that packt offers e Book versions of every book published, with PdF and epubfilesavailableYoucanupgradetotheeboOkversionatwww.packtpub.comandasa print book customer, you are entitled to a discount on the e book copy. Get in touch with us at servicepacktpub com for more details Atwww.packtpub.comyoucanalsoreadacollectionoffreetechnicalarticlessignupfora range of free newsletters and receive exclusive discounts and offers on packt books and eBooKs Contributors About the author Nicholas Sherriff(Nick) spent the majority of his career at a major utility company in the UK, working predominantly on the Microsoft Windows platform with C#, ASP.NET, and SQL Server. While leading the native application development function there, he experimented with C++ before eventually discovering Qt, utilizing it on a major greenfield project serving several thousand users. He currently works for a communications recording software house. At home, Nick enjoys music, video games, and half-hearted calisthenics About the reviewer Marthala vishnu vardhan reddy is an enthusiastic software engineer. he is a ot software developer and has been working in the automation industry since 2013. He completed his master's in information technology from the University of Stuttgart, Germany. He is currently working on the digitization of metal cutting tool data in the manufacturing industry in the direction of Industry 4.0 He has done his bachelor's thesis from Institut superieur d'electronique de paris france where he published an ieee publication on 5G networks as well Packt is searching for authors like you f you' re interested in becoming an author for Packt, please visit authors. packtpub com and apply today. We have worked with thousands of developers and tech professionals, just like you, to help them share their insight with the global tech community. You can make a general application, apply for a specific hot topic that we are recruiting an author for, or submit your own idea Table of contents Preface Chapter 1: Hello Qt 6 Installing Qt Maintaining your installation 13 Qt Creator Scratchpad project gmake Summary 25 Chapter 2 Project Structure 26 Projects, MVC, and unit testing 26 Project creation 28 cm-lib 33 cm-tests 34 cm-uI 34 Mastering Mvc 37 QObject 40 QML 43 Project output 47 Summary Chapter 3: User Interface 56 UX 56 Creating views 58 Stack View 60 Anchors Sizing 69 Navigation 76 Fixing conflicts 86 Summary 87 Chapter 4: Style 88 Style resource 89 Font Awesome Components 100 Table of Contents Styling the navigation bar 104 Clicking 111 Commands 116 Command ba 122 Summary 128 Chapter 5: Data 129 JSON 129 Object hierarchy Data Decorators 133 Entities 143 Entity collections 147 Data models 154 Custom TextBox 161 Summary 167 Chapter 6: Unit Testing 168 Unit testing 168 The default Qt approach 170 Custom approach 173 Data Decorator tests 181 Entity Tests 187 Mocking 193 Summary 199 Chapter 7: Persistence 201 SQLite 202 Primary keys 210 Creating clients 213 Panels 218 Finding clients 225 Editing clients 237 Deleting clients 241 Summary 245 Chapter 8: Web Requests 246 Network access 246 Web Requests 249 RSS View 255 RSS 259 Summary 277 [i] Table of Contents Chapter 9: Wrapping Up 278 Object factory 278 UI scali 281 Dashboard 283 Enumerator selectors 285 Contacts 294 Deployment preparation 300 OS X 302 Linux 307 Windows 313 Qt Installer framework 316 Installation 320 Summary 323 Other books You may Enjoy 325 Index 328 Preface Qt is a mature and powerful framework for delivering sophisticated applications across a multitude of platforms. It is widely used in embedded devices, including Tvs, satellite set- top boxes, medical equipment, car dashboards, and much more. It also has a rich history in the Linux world, with KdE and Sailfish OS using it extensively and many apps in the stores being developed using Qt. It has also made great strides in the mobile arena over the past few years. However, in the microsoft Windows and Apple macOs X worlds, the dominance of C#/NEt and Objective-C/Cocoa means that Qt is often overlooked This book aims to demonstrate the power and flexibility of the Qt framework and show how you can write your application once and deploy it to multiple operating system desktops. The reader will build a complete real-world Line of Business (lob) solution from scratch with distinct library user interface, and unit test projects We will cover building a modern and responsive user interface with Qml and wiring it up to rich C++ classes. We will control every aspect of our project configuration and output with QMake, including platform detection and conditional expressions. We will build"self- aware"data entities that can serialize themselves to and from jsoN. We will persist those data entities in a database and learn how to find and update them we will reach out to the internet and consume an RSS feed. Finally, we will produce an installation package so that we can deploy our application onto other machines This is a suite of essential techniques that cover the core requirements for most LOB applications and will empower the reader to progress from blank page to shipped application Who this book is for This book targets application developers looking for a powerful and flexible framework for creating modern and responsive applications on microsoft windows, apple mac os x, and Linux desktop platforms. Although focused on desktop application development, the techniques discussed are largely applicable to mobile development also Preface What this book covers Chapter 1, Hello Qt, covers how to install and configure the Qt framework and associated IDE, Ot Creator Chapter 2, Project Structure, show cases how to create a new multi-project solution that will be the foundation of our example application Chapter 3, user Interface, explores the user interface markup language QMl and sketches out our UIs layout Chapter 4, Style, explains how to give our ui a modern look and feel with shared resources and reusable components Chapter 5, Data, discusses managing the most critical part of any LOB application-the data Chapter 6, unit Testing gets you started with integrating unit testing into our solution using Qt's testing framework--QtTest Chapter 7, Persistence focuses on persisting our data to disk in a sqlite database Chapter 8, Web Requests assists in using Http requests to pull data from a live Rss feed Chapter 9, Wrapping up, dives into packaging and deploying our application To get the most out of this book The reader should be comfortable with C++, but no prior knowledge of Qt or QMl is required. On Mac os X, you will need to install XCode and have launched it at least once On Windows, you may optionally install Visual Studio in order to have the msvc compiler available Download the example code files You can download the example code files for this book from your account at Www.packtpub.com.Ifyoupurchasedthisbookelsewhereyoucanvisit Www.packtpub.com/supportandregistertohavethefilesemaileddirectlytoyou [2]

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