e4

The code from two years back had to be upgraded to E4, and now a bunch of stuff does not work anymore. One of these is the IEvaluationService if used like this: <handler class="org.acme.PrintHandler" commandId="org.eclipse.ui.file.print"> <activeWhen> <with variable="activePart"> <test property="org.acme.printable" /> </with> </activeWhen> </handler> IEvaluationService service = (IEvaluationService) PlatformUI.getWorkbench().getService(IEvaluationService.class); service.requestEvaluation("org.acme.printable"); How do I (re)trigger the evaluation of a PropertyTester ? Since E4 is really not

I am developing e4 application. I want to inject EPartService outside the Part and Handler when i am injecting EPartService then i will get null pointer error public class DisplayRuntimePart { @Inject EPartService partService; private void displayPart(){ MPart part=partService.findPart("com.rcpe4.myproject.part.datapart"); mpart.setVisible(true); partService.showPart(mpart, PartState.CREATE); } } I am also read this question but till not solve my problem E4 EPartService findPart() throwing java.lang.Null Pointer Exception Edit I am inject EPartService in Part class. Class URI in Application

The code from two years back had to be upgraded to E4, and now a bunch of stuff does not work anymore. One of these is the IEvaluationService if used like this: <handler class="org.acme.PrintHandler" commandId="org.eclipse.ui.file.print"> <activeWhen> <with variable="activePart"> <test property="org.acme.printable" /> </with> </activeWhen> </handler> IEvaluationService service = (IEvaluationService) PlatformUI.getWorkbench().getService(IEvaluationService.class); service.requestEvaluation("org.acme.printable"); How do I (re)trigger the evaluation of a PropertyTester ? Since E4 is really not

I have created a pure Eclipse e4 rich client platform application application model. I created multiple perspectives using perspective stack, but I am unable to switch other perspective because there is no default perspective bar or switcher icon present in Eclipse e4. How to implement a perspective switcher in pure Eclipse e4? EPartService.switchPerspective will do the actual switch, but you will have to design and implement the UI. You could use a ToolBar in the window Trim Bar with buttons for each perspective. Alternatively a Combo as a Tool Control with a list of the perspectives, it is

I try to change the font size of package explorer in Eclipse from menu Window → Preferences → General → Appearance , and I fail to change the font size. How can I do that? I use Eclipse v4.2 (Juno) on Windows 7. Eclipse is using native Windows widgets and their settings can only be changed from Display Properties / Settings / Advanced / General properties tab. There you can change your screen DPI to alter font sizes. On Juno and up you can adjust that font by CSS. Lookup the files in eclipse\plugins\org.eclipse.platform_4.2.x.y\css for your current style sheet (probably e4_default_win7.css ),