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Eclipse Plug-in Development Beginner's Guide - Second Edition

You're reading from  Eclipse Plug-in Development Beginner's Guide - Second Edition

Product type Book
Published in Aug 2016
Publisher
ISBN-13 9781783980697
Pages 458 pages
Edition 2nd Edition
Languages
Author (1):
Alex Blewitt Alex Blewitt
Profile icon Alex Blewitt

Table of Contents (24) Chapters

Eclipse Plug-in Development Beginner's Guide Second Edition
Credits
Foreword
About the Author
Acknowledgments
About the Reviewers
www.PacktPub.com
Preface
1. Creating Your First Plug-in 2. Creating Views with SWT 3. Creating JFace Viewers 4. Interacting with the User 5. Working with Preferences 6. Working with Resources 7. Creating Eclipse 4 Applications 8. Migrating to Eclipse 4.x 9. Styling Eclipse 4 Applications 10. Creating Features, Update Sites, Applications, and Products 11. Automated Testing of Plug-ins 12. Automated Builds with Tycho 13. Contributing to Eclipse Using OSGi Services to Dynamically Wire Applications Pop Quiz Answers Index

Time for action – using a CSS property


At present the color of the hand is set in the constructor of the ClockWidget, and cannot be changed after creation. It would be better if the style of the widget could be controlled externally using the CSS that is used to style the application. This is handled with an ICSSPropertyHandler subclass from the org.eclipse.e4.ui.css.swt plug-in.

  1. Open the plugin.xml file from the com.packtpub.e4.clock.ui plug-in and switch to the Dependencies tab. Add the org.eclipse.e4.ui.css.swt and org.eclipse.e4.ui.css.core plug-ins to the list. To ensure that the bundle will work if these are missing, mark them both as Optional dependencies.

  2. Create a new package com.packtpub.e4.ui.internal.css to store the classes necessary for CSS cooperation.

  3. Create a new class CSSPropertyClockHandler, which extends AsbtractCSSPropertySWTHandler. The IDE will offer to auto-create the missing methods applyCSSProperty and retrieveCSSProperty, so create these as they will be used next.

  4. In...

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