How can I hide a CTabItem in a CTabFolder

Question

I can't find any method for making a tab invisible or otherwise hidden in an SWT/JFace application --- I want a second tab to be available (or not) based on some other preferences set by the user.

It shouldn't be so hard to figure this out!

Answer 1

The only way that I know of is to dispose the CTabItem for the tab you want to hide and then create a new CTabItem when you want to show it. Sort of,

 CTabFolder folder = new CTabFolder(parent, SWT.NONE);
 Label label = new Label(folder, SWT.NONE);
 label.setText("Hello");
 CTabItem item = new CTabItem(folder);
 item.setControl(label);
 // Hide it
 item.dipose();
 // show it again
 CTabItem item = new CTabItem(folder);
 item.setControl(label);

If you want to hide a tab in the middle you'll need to recreate all the tabs after the one you disposed.. It's probably easiest if you create a class that holds the control and a field that can be used to toggle the visibility. Then you can just dipose all the CTabItems and recreate iff the visibility field is true.