[BLUEJ-481] BlueJ should display helpful text when no project is open
When no project is open, it is not possible to perform certain actions such as create a new class (the "New Class" button is disabled as is the equivalent menu item). This causes confusion to some beginners, who do not understand that they must have an open project. (Contrast to eg a word processor, where you can insert and edit text into an empty document before you have chosen the file name).
It would be helpful if, in the class diagram area, text was displayed indicating that a project needed to be opened or created.
Issue metadata
- Issue type: Task
- Priority: Medium
- Fix versions: 3.1.4