Bug 3970 [preferences] UI needed to define the default line delimiters for new files (1GFIOAX)
When creating a new file we currently use the line delimiter returned form System.getProperties("line.delimiter"). But this is not whay a user always wants. Consider the following sceanrio: - Unix and Windows work station used to develop a Unix product / program. - the Windows work stations are used as X terminals and to run Eclipse (since PC are cheaper than Unix boxes). - even if the new file is created on Windows it should have Unix line delimiters since the end product is a Unix product. There should be a UI (Preference) to define the line delimiter for new files. Possible values are: - Dos / Windows - Mac - Unix - default platform line delimiter. The UI should be provided by the Workbench since all plugins should use the same line delimiter for new files. NOTES:
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/IDEEditorsPreferencePage.java
createEditorHistoryGroup(composite);
		createSpace(composite);
		createShowMultipleEditorTabsPref(composite);
		createEditorReuseGroup(composite);
		createSpace(composite);
		encodingEditor = new ResourceEncodingFieldEditor(IDEWorkbenchMessages.WorkbenchPreference_encoding, composite, ResourcesPlugin
				.getWorkspace().getRoot());
		encodingEditor.setPage(this);
		encodingEditor.load();
		encodingEditor.setPropertyChangeListener(new IPropertyChangeListener() {
			/* (non-Javadoc)
			 * @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent)
			 */
			public void propertyChange(PropertyChangeEvent event) {
				if (event.getProperty().equals(FieldEditor.IS_VALID))
					updateValidState();
			}
		});
		
		
		
		return composite;
	}
	/* (non-Javadoc)
	 * @see org.eclipse.ui.internal.dialogs.EditorsPreferencePage#performDefaults()
	 */
	protected void performDefaults() {
		clearUserSettings = true;
		List encodings = WorkbenchEncoding.getDefinedEncodings();
		Collections.sort(encodings);