Book Image

Qt5 C++ GUI Programming Cookbook

By : Lee Zhi Eng
Book Image

Qt5 C++ GUI Programming Cookbook

By: Lee Zhi Eng

Overview of this book

With the advancement of computer technology, the software market is exploding with tons of software choices for the user, making their expectations higher in terms of functionality and the look and feel of the application. Therefore, improving the visual quality of your application is vital in order to overcome the market competition and stand out from the crowd. This book will teach you how to develop functional and appealing software using Qt5 through multiple projects that are interesting and fun. This book covers a variety of topics such as look-and-feel customization, GUI animation, graphics rendering, implementing Google Maps, and more. You will learn tons of useful information, and enjoy the process of working on the creative projects provided in this book
Table of Contents (16 chapters)
Qt5 C++ GUI Programming Cookbook
About the Author
About the Reviewer

Touch events

In this section, we will learn how to develop a touch-driven application that runs on mobile devices using Qt Quick.

How to do it…

  1. First of all, create a new Qt Quick application project.

  2. In Qt Creator, right-click on qml.qrc and select Open in Editor. Then, click Add | Add Files and add tux.png to the project:

  3. Next, open up MainForm.ui.qml. Drag an image widget from the Library window to the canvas. Then, set the source of the image to tux.png and set its fillmode to PreserveAspectFit. After that, set its width to 200 and its height to 220.

  4. Make sure both the mouse area widget and the image widget are exported as alias properties of the root item by clicking on the small icon besides their respective widget name.

  5. After that, switch over to the Script Editor by clicking on the Edit button on the side bar located at the left side of the editor. We need to change the mouse area widget to a multi-point touch area widget, like so:

    MultiPointTouchArea {
      id: touchArea
      anchors.fill: parent...