Blog Archives

[Eclipse Expressions] Control the visibility of Eclipse RCP menu contributions depending on text selection with PropertyTesters

Posted on 25 March 2014 by Stephan Druskat — No Comments ↓

For seasoned RCP developers, this will be yesterday’s news I guess. However, I have just spent more than the usual 10 minutes on finding a solution to my problem, so I thought it’d be good to provide a quick write-up.…

Tagged with: Command, control, Eclipse, Eclipse RCP, enabledWhen, expressions, handler, JFace, plugin.xml, PropertyTester, SourceViewer, text file encoding, TextSelection, Tutorials, ViewPart, visibility, visibleWhen
Posted in Eclipse RCP, Tutorial

Eclipse GEF Tutorial: Secondary layout for multiple children of a PolylineConnection with ConnectionLocator and RelativeLocator

Posted on 13 June 2013 by Stephan Druskat — No Comments ↓

In an Eclipse GEF editor I am developing, PolylineConnections can have multiple children (of a type extending org.eclipse.draw2d.Label). I’ve wanted them to be located at ConnectionLocator.MIDDLE, but they should also have a secondary layout, similar to ToolbarLayout (i.e., ordered in…

Tagged with: connection, ConnectionLocator, Eclipse, Eclipse RCP, EditPart, Figure, GEF, layout, PolylineConnection, RelativeLocator, secondary layout, Tutorials
Posted in Draw2D, Eclipse RCP, GEF: Eclipse Graphical Editing Framework, Tutorial

Building a cross-platform, feature-based Eclipse RCP Product with Tycho II: Mind your OSs

Posted on 26 February 2013 by Stephan Druskat — 1 Comment ↓

If you have followed Building a cross-platform, feature-based Eclipse RCP Product with Tycho (the umpteenth), and have run the build on a Windows system, you will have ended up with non-executable products for Mac OS X and Linux. What this…

Tagged with: .app, .exe, Build, build server, Carbon, chmod, Cocoa, Eclipse, Eclipse RCP, executable bit, file system permissions, launcher, Linux, Mac OS X, Maven, operating system, OS, product, software, Tutorials, Tycho, Ubuntu, virtualization
Posted in Build, Eclipse RCP, Operating System, Tutorial, Tycho

Dynamically calculating the position constraints for a figure in a GEF editor layout in relation to another figure

Posted on 14 February 2013 by Stephan Druskat — No Comments ↓

I’ve worked on the implementation of a GEF editor for an EMF-based model, using both the GEF book and vainolo‘s great GEF tutorials. The model consists of several types of nodes and connections, with different layout requirements for the display…

Tagged with: calculation, constraints, dynamic, Eclipse, Eclipse RCP, EditPart, EMF, Figure, GEF, graph, layout, position, refreshVisuals(), token, Tutorials
Posted in Draw2D, GEF: Eclipse Graphical Editing Framework, Tutorial