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6.12.1.1 Static menu items

Zero-argument classes within toolkits are displayed as pull-right menus. You can nest classes to any depth. If a member of a zero argument class is an instance of the class Menuseparator, it is drawn as a menu separator. This can be useful to give visual grouping to a menu.

nip2 uses the first line of the comment before a definition as help text for that function, so it's a good idea to put a simple one-line description of the function at the start of a comment.

For example, if the following text is placed in a file called Fred.def on nip2's start path, you'll get a menu in the tookits called Fred with a pull-right and a separator. See Figure 6.1.

                                                      
  Banana a = a * 3;
               
  Subfred = class {
    // add two things
    Jim a b = a + b;
    Apple e = e * 12;
               
    sep1 = Separator;
               
    Harry z = 12 + z;
  }

Figure 6.1: How Fred.def will look
\includegraphics[width=2.5in]{figs/toolkit.PS}


next up previous contents
Next: 6.12.1.2 Dynamic menu items Up: 6.12.1 Tools and toolkits Previous: 6.12.1 Tools and toolkits   Contents
John Cupitt 2004-12-20