Bug 33550 [Dialogs] Dialog should support remembering size and position
There are several dialogs that remember its size and position. Since restore the size and considering screen size and font changes isn't trivial JFace's Dialog class should support remembering and restoring size and position. These would realy ease the task for subclasses. May be you can steel the code from OpenTypeSelectionDialog.
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/Dialog.java
* this method.
     */
    protected Control createContents(Composite parent) {
        
        Composite composite = new Composite(parent, 0);
        GridLayout layout = new GridLayout();
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        layout.verticalSpacing = 0;
        composite.setLayout(layout);
        composite.setLayoutData(new GridData(GridData.FILL_BOTH));
        applyDialogFont(composite);
        
        initializeDialogUnits(composite);
        
        dialogArea = createDialogArea(composite);
        buttonBar = createButtonBar(composite);
        return composite;
    }
    /**
     * Creates and returns the contents of the upper part of this dialog (above
     * the button bar).
     * <p>
     * The <code>Dialog</code> implementation of this framework method creates
     * and returns a new <code>Composite</code> with standard margins and
     * spacing.
     * </p>
     * <p>
     * The returned control's layout data must be an instance of
     * <code>GridData</code>. This method must not modify the parent's