l_tabgroup.rb - a tabgroup and tabpage objects for Locana

Author: Michael Davis, mdavis@locana.org

Copyright: (C) 2000, 2001, 2002 Seva Inc. and Seva Software - www.sevasoftware.com

Home page: www.locana.org

License: Same as Ruby

This module provides Ltabgroup and Ltabpage classes that are based on other Locana objects. A Ltabgroup is a collection of Ltabpage objects where only one tabpage is visible at a time. A button bar with a button for each Ltabpage object is automatically created allowing you click on a button to bring it’s tabpage to the front of other tab pages so you can see and interact with it. When the buttons in the Ltabgroup_buttonbar are too large for the Ltabgroup_buttonbar, scroller buttons automatically appear allowing you to scroll the buttons in the Ltabgroup_buttonbar left or right so you can see obscured buttons.

Operations:

• click on the button of the tabpage you want to bring to the front.
• when the keyboard focus is in the button bar (on one of the buttons in the button bar) you can press the left arrow key to show the previous tab page and the right arrow key to show the next tab page.

Status

• It works.

To do

• Make the button bar wrap buttons to the next line if the total width of the button bar is wider than the largest tab page. Basically, support multiple lines of buttons. Currently, you can have only a single line of buttons in the button bar.
• Add support for placing the button bar at the bottom, left, or right.

History

• 09/13/2003 - Added automatic scroller buttons to allow you to scroll the button bar left or right when you can’t see all of the buttons.
• 07/20/2003 - Updated to conform to the new design of Locana.
• 02/24/2003 - Updated to conform to the new event handler design.
• 11/20/2002 - Fixed bug where re-ordering the tab pages would not refresh the display.
• 9/3/2002 - Fixed a bug with balloon help assigned to a tabpage. The :on_enter and :on_exit events were fixed when entering and leaving a tabgroup.
• 5/20/2002 - Created.