Finish chapter "Menu and MenuBar"

[koendehondt]

• Add content

[koendehondt]

Spec issue #1559 is blocking the code examples in this chapter because we cannot disable toolbar buttons. The UI does not open.

When #1559 is fixed, Spec issue #1560 is confusing for the users because disabled toolbar buttons can be clicked and their action is triggered, which is highly undesirable.

@Ducasse It would be good to let these bugs be fixed before the book is released.

[Ducasse]

@estebanlm I added the tag forBookrelease so that we can sync with you.

[koendehondt]

@Ducasse

Here is a screenshot of the small application I like to use in this chapter. I write "small", but there is quite some code involved.

All the aspects are there: menubar, toolbar, status bar (no text in the status bar in the screenshot), context menu. Because all these aspects will be described in the chapter, I would like to change the chapter title to "Menubar, Toolbar, Status bar and Context Menus. wdyt?

There are still a few questions open in mail and in Github issues. When they are resolved, I can start writing the text of the chapter.

As I said before, I like to use and adapt the same example in the chapter on transmissions.

[Ducasse]

This is a nice idea! Super.