GEF4 is the fourth generation API of the Graphical Editing Framework (GEF). It supersedes the Draw2d 3.x, GEF (MVC) 3.x, and Zest 1.x legacy components, which are not developed further but only maintained. GEF4 is set up in terms of smaller, more lightweight components, uses JavaFX instead of SWT as rendering technology, and allows to build up graphical applications for Eclipse (using a JavaFX-SWT-integration) as well as standalone.
We are currently working on the 4.1.0 (Neon.1) and 5.0.0 (Oxygen) releases. Please note that for Oxygen, all GEF4 components will be migrated back to the original GEF namespace (changing their versions to 5.0.0), and the project documentation will be moved from this wiki to GitHub.
The latest published release is 4.0.0 (Neon), which includes 1.0.0 versions of all GEF4 components. Please note that these are not compatible to the 0.1.0 and 0.2.0 versions provided as part of the preceding GEF 3.10.0 (Mars) and GEF 3.10.1 (Mars.1) releases. Please refer to New and Noteworthy in 4.0 to be informed about the most important changes.
If you are still interested in information about changes from 0.1.0 to 0.2.0, these can be found in New and Noteworthy in 3.10.1. An overview of all significant features added earlier during the Mars release train can in addition be found in New and Noteworthy in 3.10. Information on earlier achievements and plans can be inferred from the talks listed under Further Reading.
As an adopter, please consult the GEF Adopter Guide that describes in a step-by-step manner how to setup your environment in order to develop your client code against GEF4. As a contributor/committer, please consult the GEF Contributor Guide that describes how to checkout and compile the sources, execute a headless Tycho-build, provide a patch, and more.
In either case, all relevant information about where to obtain our source code, where to find our Hudson build jobs, update sites (CI, milestones, releases), mailing lists, or our forum, etc. can all be found in the respective sections of the GEF project dashboard.
The developer documentation for each GEF4 component is referenced from within the developer documentation section on this page. Each component documentation includes references to examples, where applicable.
GEF4 is internally constituted of the following nine components (with their respective sub-modules). The reference documentation for each component may be accessed via the component links. You may also consult the Further Reading-section for additional information.
The naming of the components' sub-modules indicate their UI-toolkit and Eclipse UI dependencies. That is, module names containing '.SWT', '.JFace', or '.FX' indicate a respective dependency to SWT, JFace, or JavaFX. Module names containing '.UI' indicate a dependency to the Eclipse UI. Please not that '.FX' is only used to indicate dependencies on the JavaFX UI toolkit and that JavaFX collections and properties are used throughout (except by GEF4 Geometry and GEF4 Cloudio).
- GEF4 Common (Common) - Provides basic abstractions and infrastructure used by (potentially) all other GEF4 components, including an enhanced adaptable pattern and notification support.
- GEF4 Geometry (Geometry / Geometry.Convert.SWT / Geometry.Convert.FX) - Provides different abstractions (Euclidean, Projective, Planar) for 2D geometric calculations, and conversions of planar geometries (curves, shapes, poly shapes) to/from respective SWT, AWT, and JavaFX equivalents (as well as conversions between SWT and AWT geometries).
- Usage of API is demonstrated by undeployed Geometry Examples.
- GEF4 FX (FX / FX.SWT / FX.JFace) - Provides support for rendering GEF4 Geometry-based shapes, as well as abstractions that are needed in the context of graphical editors and views, i.e. visual anchor implementations and a connection abstraction. Also enhances the JavaFX-SWT-Integration with forwarding of touch gestures and provides proper support for embedding SWT Controls via a generic adapter into a JavaFX scene graph (within the context of the JavaFX SWT integration).
- GEF4 Graph (Graph) - Provides a simply, UI-independent data-model (Graph, Node, Edge) for representing directed graphs. Is used as data model by GEF4 DOT and underlying visualization-model for GEF4 Zest.
- Usage of API is demonstrated by undeployed Graph Examples.
- GEF4 Layout (Layout) - Provides layout algorithm implementations as well as a model facade to adapt layout model data for these algorithms.
- Usage of API is demonstrated by undeployed Layout Examples.
- GEF4 MVC (MVC / MVC.UI / MVC.FX / MVC.FX.UI) - Provides the core model-view-controller framework to build up graphical editors and views. Provides an UI toolkit independent and a JavaFX specific layer, as well as Eclipse-UI integration for both. Can be used to build standalone and Eclipse-integrated editors and views.
- Usage of API is demonstrated by a bundled MVC Logo Example, which is available as a standalone application, an Eclipse Workbench UI integrated view, as well as a JNLP-based web application.
- GEF4 Zest (Zest.FX / Zest.FX.JFace / Zest.FX.UI) - Provides support for visualization of GEF4 Graph-based models, integrating automated layout based on GEF4 Layout. Internally built on GEF4 FX and GEF4 MVC.
- Usage of API is demonstrated by a bundled Zest Graph Example, which is available as a standalone application and an Eclipse Workbench UI integrated view, as well as undeployed Zest Examples and Zest JFace Examples.
- GEF4 DOT (DOT / DOT.UI) - Provides a basic GraphViz DOT-Editor (Xtext) as well as a GEF4 Zest-based DOT-visualization.
- Usage of (still internal) API is demonstrated by undeployed DOT Examples.
- GEF4 Cloudio (Coudio.UI) - Provides support for visualizing tag clouds. Is based on SWT/JFace, integrated in the Eclipse UI, and will (at least for now) not be ported to JavaFX.
- Usage of (still internal) API is demonstrated by undeployed Cloudio UI Examples.
Further information about the history and current plans, as well as on technical details can be inferred from the following presentations/articles/posts:
- Alexander Nyßen (2016): GEF4 Common Collections and Properties - Guava goes FX, ANy's Argument (Blog)
- Alexander Nyßen (2015): GEF4 - Sightseeing Mars, EclipseCon Europe, Ludwigsburg, 2015
- Alexander Nyßen (2015): GEF4 - Mission to Mars Accomplished!, ANy's Argument (Blog)
- Alexander Nyßen (2014): IAdaptable - GEF4's Interpretation of a Classic, ANy's Argument (Blog)
- Alexander Nyßen (2014): GEF4 - Our mission to Mars, EclipseCon Europe, Ludwigsburg, 2014
- Alexander Nyßen (2014): GEF4 - There's really something going on!, EclipseCon NA, San Francisco (CA), 2014
- Alexander Nyßen (2013): GEF4, RheinJug, Düsseldorf, 2013 , Video (German)
- Alexander Nyßen (2013): GEF4 SwtFX (Lightning Talk), EclipseCon Europe, Ludwigsburg, 2013
- Alexander Nyßen (2013): GEF4 - (Continue to) Share and Enjoy..., EclipseCon NA, Boston (MA), 2013
- Alexander Nyßen (2012): GEF4 - Share And Enjoy..., EclipseCon Europe, Ludwigsburg, 2012
- Alexander Nyßen (2012): GEF - Past, Present, and Future, EclipseCon NA, Reston (VA), 2012