Most windows have a menu bar at the top containing one or more menus.
These menus will usually provide the actions available from the
toolbar (identifiable because they have the same icons), and
may provide some other less-commonly-required actions too.
Here are some of the menus common to several windows:
-
File menu
- Nearly all windows have this menu.
At least the following options are available:
-
Close
- Closes the window. This convenience button
has the same effect as closing the window
in whatever way your graphics platform normally allows.
In most cases, closing the window does not lose state associated with
it (such as fields filled in); if you recover the window later it
will look the same as when you closed it.
-
Exit
- Exits TOPCAT. You will be prompted to confirm this action
if tables are loaded, since it might result in loss of data.
-
Help menu
- Nearly all windows have this menu.
The following options are available:
-
Help
- Pops up the Help Window.
-
Help For Window
- Pops up the Help Window;
the window will display help information relevant to the window in
which the menu appears.
-
About TOPCAT
- Pops up a little window giving information on the version and
authorship of the program.
It also reports on availability of some optional components.
-
Display menu
- This menu is available for most windows which display their data
using a JTable component.
If present, it contains a list of the columns in the JTable with
tickboxes next to them - clicking on a column name in this menu
toggles whether the column is visible in the window.