save as for texteditors sufferng from icon bug
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Key: UDIG-1290
URL: http://jira.codehaus.org/browse/UDIG-1290
Project: uDIG
Issue Type: Wish
Components: ui
Affects Versions: UDIG 1.1 RC11
Environment: all
Reporter: Andrea Antonello
Fix For: UDIG 1.1.1
When using standard editors from org.eclipse.ui.ide, the default Save As action
usually fails, throwing a NullPointerException. This happens when the program
tries to create a Save As Dialog. A particular exception usually looks
something like:
java.lang.NullPointerException
at org.eclipse.ui.dialogs.SaveAsDialog.createContents(SaveAsDialog.java:102)
at org.eclipse.jface.window.Window.create(Window.java:426)
at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1124)
at
org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.performSaveAs(AbstractDecoratedTextEditor.java:1580)
at org.eclipse.ui.editors.text.TextEditor.performSaveAs(TextEditor.java:115)
at
org.eclipse.ui.texteditor.AbstractTextEditor.doSaveAs(AbstractTextEditor.java:3538)
at ....MultiPageEditor.doSaveAs(MultiPageEditor.java:196)
....
This, actually, happens when the dialog tries to set the banner image for the
dialog, but the image is not available. The default IDEWorkbenchAdvisor
registers such an image for the default IDE, so must your application. The
solution is the following:
1) Make sure you add org.eclipse.ui.ide to the dependencies of your plugin
2) In your WorkbenchAdvisor class add the following code to the initialise()
method implementation:
Bundle ideBundle = Platform.getBundle(IDEWorkbenchPlugin.IDE_WORKBENCH);
final String banner = "/icons/full/wizban/saveas_wiz.png";
URL url = ideBundle.getEntry(banner);
ImageDescriptor desc = ImageDescriptor.createFromURL(url);
configurer.declareImage(IDEInternalWorkbenchImages.IMG_DLGBAN_SAVEAS_DLG, desc,
true);
This will declare a standard banner image from the org.eclipse.ui.ide plugin as
the proper banner image for SaveAs dialog in the same way as it is done in the
IDEWorkbenchAdvisor. Running your application again demonstrates the correct
behaviour. If you are still getting a NullPointerException, check whether you
declared plugin dependencies, and whether you included org.eclipse.ui.ide to
your target platform.
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