classspecificationdialog.java

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        cancelButton.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                hide();
            }
        });

        // Add all panels to the main panel.
        JPanel mainPanel = new JPanel(layout);
        mainPanel.add(commentsPanel,              panelConstraints);
        if (fullKeepOptions)
        {
            mainPanel.add(keepOptionPanel,        panelConstraints);
            mainPanel.add(allowOptionPanel,       panelConstraints);
        }
        mainPanel.add(accessPanel,                panelConstraints);
        mainPanel.add(annotationTypePanel,        panelConstraints);
        mainPanel.add(classNamePanel,             panelConstraints);
        mainPanel.add(extendsAnnotationTypePanel, panelConstraints);
        mainPanel.add(extendsClassNamePanel,      panelConstraints);
        mainPanel.add(memberSpecificationsPanel,  stretchPanelConstraints);

        mainPanel.add(okButton,     okButtonConstraints);
        mainPanel.add(cancelButton, cancelButtonConstraints);

        getContentPane().add(mainPanel);
    }


    /**
     * Adds a JLabel and three JRadioButton instances in a ButtonGroup to the
     * given panel with a GridBagLayout, and returns the buttons in an array.
     */
    private JRadioButton[] addRadioButtonTriplet(String labelText,
                                                 JPanel panel)
    {
        GridBagConstraints labelConstraints = new GridBagConstraints();
        labelConstraints.anchor = GridBagConstraints.WEST;
        labelConstraints.insets = new Insets(2, 10, 2, 10);

        GridBagConstraints buttonConstraints = new GridBagConstraints();
        buttonConstraints.insets = labelConstraints.insets;

        GridBagConstraints lastGlueConstraints = new GridBagConstraints();
        lastGlueConstraints.gridwidth = GridBagConstraints.REMAINDER;
        lastGlueConstraints.weightx   = 1.0;

        // Create the radio buttons.
        JRadioButton radioButton0 = new JRadioButton();
        JRadioButton radioButton1 = new JRadioButton();
        JRadioButton radioButton2 = new JRadioButton();

        // Put them in a button group.
        ButtonGroup buttonGroup = new ButtonGroup();
        buttonGroup.add(radioButton0);
        buttonGroup.add(radioButton1);
        buttonGroup.add(radioButton2);

        // Add the label and the buttons to the panel.
        panel.add(new JLabel(labelText), labelConstraints);
        panel.add(radioButton0,          buttonConstraints);
        panel.add(radioButton1,          buttonConstraints);
        panel.add(radioButton2,          buttonConstraints);
        panel.add(Box.createGlue(),      lastGlueConstraints);

        return new JRadioButton[]
        {
             radioButton0,
             radioButton1,
             radioButton2
        };
    }


    /**
     * Sets the KeepSpecification to be represented in this dialog.
     */
    public void setKeepSpecification(KeepSpecification keepSpecification)
    {
        boolean markClasses       = keepSpecification.markClasses;
        boolean markConditionally = keepSpecification.markConditionally;
        boolean allowShrinking    = keepSpecification.allowShrinking;
        boolean allowOptimization = keepSpecification.allowOptimization;
        boolean allowObfuscation  = keepSpecification.allowObfuscation;

        // Figure out the proper keep radio button and set it.
        JRadioButton keepOptionRadioButton =
            markConditionally ? keepClassesWithMembersRadioButton :
            markClasses       ? keepClassesAndMembersRadioButton  :
                                keepClassMembersRadioButton;

        keepOptionRadioButton.setSelected(true);

        // Set the allow radio buttons.
        allowShrinkingRadioButton   .setSelected(allowShrinking);
        allowOptimizationRadioButton.setSelected(allowOptimization);
        allowObfuscationRadioButton .setSelected(allowObfuscation);

        setClassSpecification(keepSpecification);
    }


    /**
     * Sets the ClassSpecification to be represented in this dialog.
     */
    public void setClassSpecification(ClassSpecification classSpecification)
    {
        String comments              = classSpecification.comments;
        String annotationType        = classSpecification.annotationType;
        String className             = classSpecification.className;
        String extendsAnnotationType = classSpecification.extendsAnnotationType;
        String extendsClassName      = classSpecification.extendsClassName;
        List   keepFieldOptions      = classSpecification.fieldSpecifications;
        List   keepMethodOptions     = classSpecification.methodSpecifications;

        // Set the comments text area.
        commentsTextArea.setText(comments == null ? "" : comments);

        // Set the access radio buttons.
        setClassSpecificationRadioButtons(classSpecification, ClassConstants.INTERNAL_ACC_PUBLIC,    publicRadioButtons);
        setClassSpecificationRadioButtons(classSpecification, ClassConstants.INTERNAL_ACC_FINAL,     finalRadioButtons);
        setClassSpecificationRadioButtons(classSpecification, ClassConstants.INTERNAL_ACC_INTERFACE, interfaceRadioButtons);
        setClassSpecificationRadioButtons(classSpecification, ClassConstants.INTERNAL_ACC_ABSTRACT,  abstractRadioButtons);

        // Set the class and annotation text fields.
        annotationTypeTextField       .setText(annotationType        == null ? ""  : ClassUtil.externalType(annotationType));
        classNameTextField            .setText(className             == null ? "*" : ClassUtil.externalClassName(className));
        extendsAnnotationTypeTextField.setText(extendsAnnotationType == null ? ""  : ClassUtil.externalType(extendsAnnotationType));
        extendsClassNameTextField     .setText(extendsClassName      == null ? ""  : ClassUtil.externalClassName(extendsClassName));

        // Set the keep class member option list.
        memberSpecificationsPanel.setMemberSpecifications(keepFieldOptions, keepMethodOptions);
    }


    /**
     * Returns the KeepSpecification currently represented in this dialog.
     */
    public KeepSpecification getKeepSpecification()
    {
        boolean markClasses       = !keepClassMembersRadioButton     .isSelected();
        boolean markConditionally = keepClassesWithMembersRadioButton.isSelected();
        boolean allowShrinking    = allowShrinkingRadioButton        .isSelected();
        boolean allowOptimization = allowOptimizationRadioButton     .isSelected();
        boolean allowObfuscation  = allowObfuscationRadioButton      .isSelected();

        return new KeepSpecification(markClasses,
                                     markConditionally,
                                     allowShrinking,
                                     allowOptimization,
                                     allowObfuscation,
                                     getClassSpecification());
    }


    /**
     * Returns the ClassSpecification currently represented in this dialog.
     */
    public ClassSpecification getClassSpecification()
    {
        String comments              = commentsTextArea.getText();
        String annotationType        = annotationTypeTextField.getText();
        String className             = classNameTextField.getText();
        String extendsAnnotationType = extendsAnnotationTypeTextField.getText();
        String extendsClassName      = extendsClassNameTextField.getText();

        ClassSpecification classSpecification =
            new ClassSpecification(comments.equals("")              ? null : comments,
                                   0,
                                   0,
                                   annotationType.equals("")        ? null : ClassUtil.internalType(annotationType),
                                   className.equals("") ||
                                   className.equals("*")            ? null : ClassUtil.internalClassName(className),
                                   extendsAnnotationType.equals("") ? null : ClassUtil.internalType(extendsAnnotationType),
                                   extendsClassName.equals("")      ? null : ClassUtil.internalClassName(extendsClassName));

        // Also get the access radio button settings.
        getClassSpecificationRadioButtons(classSpecification, ClassConstants.INTERNAL_ACC_PUBLIC,    publicRadioButtons);
        getClassSpecificationRadioButtons(classSpecification, ClassConstants.INTERNAL_ACC_FINAL,     finalRadioButtons);
        getClassSpecificationRadioButtons(classSpecification, ClassConstants.INTERNAL_ACC_INTERFACE, interfaceRadioButtons);
        getClassSpecificationRadioButtons(classSpecification, ClassConstants.INTERNAL_ACC_ABSTRACT,  abstractRadioButtons);

        // Get the keep class member option lists.
        classSpecification.fieldSpecifications  = memberSpecificationsPanel.getMemberSpecifications(true);
        classSpecification.methodSpecifications = memberSpecificationsPanel.getMemberSpecifications(false);

        return classSpecification;
    }


    /**
     * Shows this dialog. This method only returns when the dialog is closed.
     *
     * @return <code>CANCEL_OPTION</code> or <code>APPROVE_OPTION</code>,
     *         depending on the choice of the user.
     */
    public int showDialog()
    {
        returnValue = CANCEL_OPTION;

        // Open the dialog in the right place, then wait for it to be closed,
        // one way or another.
        pack();
        setLocationRelativeTo(getOwner());
        show();

        return returnValue;
    }


    /**
     * Sets the appropriate radio button of a given triplet, based on the access
     * flags of the given keep option.
     */
    private void setClassSpecificationRadioButtons(ClassSpecification classSpecification,
                                                    int                 flag,
                                                    JRadioButton[]      radioButtons)
    {
        int index = (classSpecification.requiredSetAccessFlags   & flag) != 0 ? 0 :
                    (classSpecification.requiredUnsetAccessFlags & flag) != 0 ? 1 :
                                                                                 2;
        radioButtons[index].setSelected(true);
    }


    /**
     * Updates the access flag of the given keep option, based on the given radio
     * button triplet.
     */
    private void getClassSpecificationRadioButtons(ClassSpecification classSpecification,
                                                    int                 flag,
                                                    JRadioButton[]      radioButtons)
    {
        if      (radioButtons[0].isSelected())
        {
            classSpecification.requiredSetAccessFlags   |= flag;
        }
        else if (radioButtons[1].isSelected())
        {
            classSpecification.requiredUnsetAccessFlags |= flag;
        }
    }
}