2. Textual Visualization Plug-in for Eclipse Gong Jun CCIS Northeastern Univ 02/2004

3. What You Are Given A detailed project description. An extended DJ Plug-in. – Can be used to parse the Selector Language Lab exercises

4. What You Need to Do Starting from an empty Plug-in, add a syntax sensitive Selector Language Editor to it. Add traversal highlighting functionality to the Traversal Highlighting View. – From where do you get the Class Graph to be traversed and highlighted? Write your class dictionary for the Selector Language.

5. Eclipse Platform Overview The definition from the official website: – Eclipse is a kind of universal tool platform - an open extensible IDE for anything and nothing in particular. The Java compiler itself is a plug-in!!! No 1 misunderstanding about Eclipse!

6. Eclipse Platform Overview

7. Plugin.xml Plug-in Manifest file Plugin_name.jar Plug-in Eclipse core …

8. What ’ s Inside plug-in.xml Function is added to the system using a common extension model. Extension points – well-defined function points in the system that can be extended by plug-ins When a plug-in contributes an implementation for an extension point, we say that it adds an extension to the platform.

9. Example

10. Selector Language Editor A simple extension to org.eclipse.ui.texteditor Add syntax rules. Contribute buttons to Menu or Toolbar – Class Action, method run() DocumentProvider – IDocument.get() Lab exercise 18 has detailed implementation details.

11. What Views Look Like?

12. Traversal Highlighting View Extension point: – org.eclipse.ui.views Class extends ViewPart Create widgets in the view by instantiating the classes of those widgets. Only a StyledText is enough!

13. StyledText org.eclipse.swt.custom.StyledText SWT widget append(String string) setStyleRanges(StyleRange[]) StyleRange specifies various styles for some parts of the text

14. Construct DJ Class Graph Create a new class graph. – Be sure to use: edu.neu.ccs.demeter.aplib.cd.ClassGraph – ClassGraph.fromString(String s) Construct Traversal Traversal.getEdgeSets() Traversal.getNodeSets() Tricky part: Create ClassGraph from source files

15. Good Luck! The End