Working with topic trees

Topic tree is a GUI element used to select and browse topics in Wandora. Topics are arranged in the tree so that each branch is a subclass or instance of the root topic. In fact arrangement can be based to any binary relation or even any set of binary relations. One topic tree locates in the left part of the Wandora window. By default the root of this tree is Wandora's base topic Wandora class (http://www.wandora.net/core/wandoraclass). By default subclass branch is marked with folder icon and instance of branch with document icon. Each topic in the tree has a handle in left of the topic's base name. You can open the subtree by clicking the handle icon. It is not rare that the subtree hierarchy contains infinite loops. Each topic in the tree can be opened to topic panel by double clicking the topic name. To change topic's base name triple click the topic and the name label changes to a editable field. If you change the name and press enter topic is given a new base name you just entered to the field. Next we investigate more detailed tree's topic tools.

If you right click a topic in the topic tree, a context menu is revealed. Context menu contains tools used to modify topics and topic map. Menu contains tools and submenus named

• Open topic
• New topic
  • New instance topic...
  • New subclass topic...
• Delete topic
• Duplicate topic
• Split topic
• Add to topic
• Delete from topic
• Copy
• Copy also
• Paste
• Paste also
• Subject locator
• Subject identifiers
• Base name
• Variant names
• Associations
• Refresh tree