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Difference between revisions of "Eclipse4/RCP/FAQ"
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== What is the difference between IEclipseContext#set and IEclipseContext#modify? == | == What is the difference between IEclipseContext#set and IEclipseContext#modify? == | ||
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| + | == UI == | ||
| + | |||
| + | === How do I enable Drag N Drop (DND) of parts? === | ||
| + | |||
| + | The DND addon is found in the org.eclipse.e4.ui.workbench.addons.swt plugin. However it requires the compatibility layer and is not available for native E4AP applications. | ||
Revision as of 15:21, 7 April 2011
Contents
How do I adopt the Eclipse 4 Application Platform?
Accessing the status line |
|
| Eclipse 3.x | Eclipse 4.0 |
getViewSite()
.getActionsBars()
.getStatusLineManager()
.setMessage(msg);
|
@Inject IStatusLineManager statusLine; ... statusLine.setMessage(msg); |
Associating help context with a control |
getSite()
.getWorkbenchWindow()
.getWorkbench()
.getHelpSystem().setHelp(
viewer.getControl(), some_id)
|
@Inject
IWorkbenchHelpSystem helpSystem;
...
helpSystem.setHelp(
viewer.getControl(), some_id);
|
Handling errors and exceptions |
try {
...
} catch (Exception ex) {
IStatus status = new Status(
IStatus.ERROR, "plugin-id",
"Error while ...", ex);
StatusManager.getManager()
.handle(status, StatusManager.SHOW);
}
|
@Inject
StatusReporter statusReporter;
...
try{
...
} catch (Exception ex) {
statusReporter.show("Error while ...", ex);
}
|
Accessing preference values |
IPreferenceStore store =
IDEWorkbenchPlugin.getDefault()
.getPreferenceStore();
boolean saveBeforeBuild = store
.getBoolean(SAVE_BEFORE_BUILD);
|
@Inject @Preference(SAVE_BEFORE_BUILD) boolean saveBeforeBuild; |
Why won't my application start?
E4AP products require having the following plugins:
- org.eclipse.equinox.ds (must be started)
- org.eclipse.equinox.event (must be started)
Note that org.eclipse.equinox.ds must be explicitly started. In your product file, you should have a section:
<configurations>
<plugin id="org.eclipse.core.runtime" autoStart="true" startLevel="2" />
<plugin id="org.eclipse.equinox.ds" autoStart="true" startLevel="3" />
<plugin id="org.eclipse.equinox.event" autoStart="true" startLevel="3" />
</configurations>
What is the difference between IEclipseContext#set and IEclipseContext#modify?
UI
How do I enable Drag N Drop (DND) of parts?
The DND addon is found in the org.eclipse.e4.ui.workbench.addons.swt plugin. However it requires the compatibility layer and is not available for native E4AP applications.