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Application Development with Qt Creator - Second Edition

You're reading from   Application Development with Qt Creator - Second Edition Design and build dazzling cross-platform applications using Qt and Qt Quick

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Product type Paperback
Published in Nov 2014
Publisher Packt
ISBN-13 9781784398675
Length 264 pages
Edition 2nd Edition
Languages
Tools
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Toc

Table of Contents (15) Chapters Close

Preface 1. Getting Started with Qt Creator 2. Building Applications with Qt Creator FREE CHAPTER 3. Designing Your Application with Qt Designer 4. Qt Foundations 5. Developing Applications with Qt Widgets 6. Drawing with Qt 7. Doing More with Qt Quick 8. Multimedia and Qt Quick 9. Sensors and Qt Quick 10. Localizing Your Application with Qt Linguist 11. Optimizing Performance with Qt Creator 12. Developing Mobile Applications with Qt Creator 13. Qt Tips and Tricks Index

Putting it all together – an image gallery application


Let's apply what we've discussed in the last few chapters by putting together a simple image gallery application, such as the photo gallery on smartphones. We'll display images from the system's directory in a grid, letting the user flick to scroll the images. Here's how our application will look:

To do this, we need the following components:

  • A model containing the paths to the images to be displayed

  • A controller responsible for creating the model

  • An image provider that can load the images from the system's image directory

  • The QML UI

Let's take a look at the application's QML first:

import QtQuick 2.3
import QtQuick.Window 2.2

Window {
  visible: true
  width: 1080 / 2
  height: 1920 / 2

  Item {
    anchors.top: parent.top
    anchors.left: parent.left
    anchors.bottom: parent.bottom
    anchors.right: parent.right
    clip: true

    GridView {
      id: grid
      anchors.fill: parent;
      cellHeight: 190
      cellWidth: 250
    ...
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