January 2002
Beginner
768 pages
25h 51m
English
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Chapter 18. A Tk Interface Extension Tour
Tk Interface Extension (Tix) widgets are an additional set of widgets that come with the Tk module.
In this chapter, we cover the widgets from Ioi Lam’s Tix 4.1.0 package. TList, HList, Tree, and DirTree are container-style widgets, designed to hold display items. This chapter covers:
- TList
A much more flexible Listbox that uses display items.
- HList
A hierarchical list widget, often used as a snazzy Listbox. It is the base class for Tree and DirTree.
- Tree
Based on HList, it displays items in tree format. Look at DirTree for an easy way to work with filesystems .
- DirTree
An extension of Tree, DirTree is designed to show directories and files in a hierarchical format.
You’d use the TList widget in place of a a ListBox when you want to display something other than text or want to display individual items in different fonts or colors. HList gives you the ability to structure a list hierarchically or with elegant column headings. The Tree widget provides a simpler interface for creating an HList with indicators, and DirTree is further simplified for displaying a filesystem hierarchy.
Before we talk about the widgets individually, we need to give you some background on how display items work and how to configure them. Once that’s established, we can discuss the Tix widgets in detail.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.