Book Image

Mastering Qt 5 - Second Edition

By : Guillaume Lazar, Robin Penea
Book Image

Mastering Qt 5 - Second Edition

By: Guillaume Lazar, Robin Penea

Overview of this book

Qt 5.11 is an app development framework that provides a great user experience and develops full capability applications with Qt Widgets, QML, and even Qt 3D. Whether you're building GUI prototypes or fully-fledged cross-platform GUI applications with a native look and feel, Mastering Qt 5 is your fastest, easiest, and most powerful solution. This book addresses various challenges and teaches you to successfully develop cross-platform applications using the Qt framework, with the help of well-organized projects. Working through this book, you will gain a better understanding of the Qt framework, as well as the tools required to resolve serious issues, such as linking, debugging, and multithreading. You'll start off your journey by discovering the new Qt 5.11 features, soon followed by exploring different platforms and learning to tame them. In addition to this, you'll interact with a gamepad using Qt Gamepad. Each chapter is a logical step for you to complete in order to master Qt. By the end of this book, you'll have created an application that has been tested and is ready to be shipped.
Table of Contents (16 chapters)

Theming the application with a QML singleton

Styling and theming a QML application can be executed in various ways. In this chapter, we will declare a QML singleton with the theme data used by custom components. Moreover, we will also create a custom Page component to handle the toolbar and its default item (the Back button and the page's title).

Please create a new Style.qml file:

pragma Singleton 
import QtQuick 2.0 
QtObject { 
    property color text: "#000000" 
    property color windowBackground: "#eff0f1" 
    property color toolbarBackground: "#eff0f1" 
    property color pageBackground: "#fcfcfc" 
    property color buttonBackground: "#d0d1d2" 
    property color itemHighlight: "#3daee9" 

We declare a QtObject component that will only contain our theme properties. A QtObject is a non-visual QML...