fPattern.setFont(group.getFont());
GridData data = new GridData(GridData.FILL, GridData.FILL, true, false, 1, 1);
data.widthHint = convertWidthInCharsToPixels(50);
fPattern.setLayoutData(data);
ComboContentAdapter contentAdapter = new ComboContentAdapter();
FindReplaceDocumentAdapterContentProposalProvider findProposer = new FindReplaceDocumentAdapterContentProposalProvider(
true);
fPatterFieldContentAssist = new ContentAssistCommandAdapter(fPattern, contentAdapter,
findProposer, ITextEditorActionDefinitionIds.CONTENT_ASSIST_PROPOSALS, new char[0], true);
fPatterFieldContentAssist.setEnabled(fIsRegExSearch);