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Application Development with Qt Creator - Second Edition

Application Development with Qt Creator - Second Edition

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Application Development with Qt Creator - Second Edition

Application Development with Qt Creator - Second Edition

4 (25)

Overview of this book

This book is great for developers who are new to Qt and Qt Creator and who are interested in harnessing the power of Qt for cross-platform development. If you have basic experience programming in C++, you have what it takes to create engaging cross-platform applications using Qt and Qt Creator!
Table of Contents (15 chapters)
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14
Index

The fundamental concepts of Qt Quick


As you saw in Chapter 3, Designing Your Application with Qt Designer, Qt Quick enables you to focus on declaring what's visible on the screen and how it should behave, rather than creating objects. Qt Quick uses the Qt Metaobject Language (QML) to do this, which uses a JavaScript-like syntax and a tree structure to define visible objects and their relationships, as well as script their behavior. Objects have a strict parent-child hierarchy that defines their visual relationship; parent objects contain their children on display.

Objects are placed in Qt Quick's main window using the traditional coordinate system, with (0, 0) in the upper left-hand corner of the display. Child objects can be placed in their parents either using coordinates relative to the upper left-hand corner of the parent or through a flexible system of anchors against object boundaries.

Each item has seven invisible anchor lines: left, horizontalCenter, right, top, verticalCenter, bottom...

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