Window-Oriented View Hierarchy

Here is a schematic representation of the window-oriented view hierarchy, with the corresponding classes also shown.

View Hierarchy

Parent-Child Relationships

The terms “parent” and “child” designate the relationship between pairs of views, taking into account which one contains the other. In the figure, the top-level view is the parent of both the tools and the scroll views, and the latter is the parent of the working view. Inversely, the scroll view is a child of the top-level view, and so on.

C++ classes and subclasses also represent parent-child relationships. Note that there is no one-to-one correspondence between the window-oriented versus class-oriented view hierarchies. The C++ class hierarchy is a different way of looking at how a view is constructed. For the complete class-oriented diagram, see the Class-Oriented View Hierarchy.