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OHJ Topic Windows

OHJ topic windows (or topic panes, when docked) display HTML content (see Figure 3).

Figure 3: Topic Windows

Topic windows with different sizes and colors

The default HTML display component included in the OHJDK is a special implementation of the ICEbrowser from ICEsoft Technologies, Inc. (www.icesoft.com). You may use and redistribute this component free of charge as long as it is used as part of a help system using OHJ. This HTML display component supports the following:

HTML 4.0
Cascading Style Sheets (CSS) 1 and most of CSS 2
Java applets
Limited multimedia (requires Java Media Framework (JMF) 2.0)
Single topic and multiple topic printing
GIF animation
Popups with limited HTML support
Associative links, where a single index word or phrase can be associated with multiple topics. When the user selects one of these links, a list of all topics associated with the link is presented, and the user can choose a topic from the list.
Author-defined window types, where authors can specify colors (background, text, and links), window size and position, window title, and toolbar buttons.
Topic ID linking (that is, hyperlink targets are specified by ID rather than URL)
Synchronization with items in the table of contents

You do not have to use the default HTML display. You can replace it with a different HTML display component. Or, if your application and the help system are running as an applet in a Web browser, you can use a browser window as the topic window. Consequently, the display capabilities for your implementation of OHJ rely on the HTML display you chose to embed in the system.