Composite composite = (Composite) super.createDialogArea(parent);
GridLayout layout = new GridLayout();
layout.numColumns = 1;
composite.setLayout(layout);
CompareViewerPane pane = new CompareViewerPane(composite, SWT.BORDER | SWT.FLAT);
pane.setText(fTestName);
GridData data = new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL);
data.widthHint = convertWidthInCharsToPixels(120);
data.heightHint = convertHeightInCharsToPixels(13);
pane.setLayoutData(data);
Control previewer = createPreviewer(pane);
pane.setContent(previewer);
GridData gd = new GridData(GridData.FILL_BOTH);
previewer.setLayoutData(gd);
applyDialogFont(parent);
return composite;