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The Java Developer's Guide to Eclipse |
In Chapter 14, The Standard Widget Toolkit: A Lean Mean Widget
Machine, you learned the fundamentals of SWT. The project com.ibm.jdg2e.swt.snippets
makes available nearly 250 examples representing all facets of SWT. These short
examples
or snippets come directly from the SWT component on eclipse.org (see SWT Snippets).
To run them you must download the individual snippets to your workspace. For your
convenience, these snippets are
repackaged on the book's CD-ROM in a single, searchable Java project with the
snippets grouped
into packages that match the grouping on the web site. The only
modification
was to give each snippet a unique class name and assign them to
packages.
The Javadoc contains the descriptions of all the packages and each snippet class. These snippets, as the name implies, are short, rarely more than a page of code and often less. They range from a SWT "Hello World" example to more esoteric examples you may rarely need. In between are many useful examples that demonstrate the breadth of this component.
com.ibm.jdg2e.swt.snippets into your workspace
according to the instructions in the readme file
on the CD-ROM.Note: You might notice three unexpected files after importing this Java project:
manifest.mf, snippets.jar, and snippetssrc.zip.
Is this plug-in project? Technically, yes, but if you examine the plug-in
manifest you will see that it only serves to make the SWT library contained in plug-in
org.eclipse.swt
available during build. Since you could have imported this project using the import plug-in function
the jar and zip files are present (you can delete them if you wish). Conversely, if you were to import this
project as a plug-in you will see a superfluous src directory since
snippetssrc.zip was used instead.
You can delete this secondary src directory if you want.
Example Snippet102
Start by examing the Javadoc overview. Each package contains a group of one or more snippets that illustrate some aspect of SWT like tables, browser, or swing interoperability. Note that snippets not focused on SWT widgets generally display a simple gray screen. You will need to explore the code to understand what the snippet code is illustrating.