September 2011
Intermediate to advanced
768 pages
15h 18m
English
Content preview from Introduction to Design Patterns in C++ with Qt, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 13: Models and Views
A model-view design framework provides tools and techniques for separating the set of underlying data classes (the model) from the set of classes that present the user with a GUI (the view). Models typically organize the data, which can be tabular or hiearchical. In this chapter, we will show how to use the model classes in Qt to represent many different kinds of data.
In several earlier examples, you saw code that attempted to keep a clean separation between model classes that represent data and view code that presented a user interface. There are several important reasons for enforcing this separation.
First, separating model from view reduces the complexity of each. Model and view code have completely different ...