When JButton clicked the background of a JLabel is changed back on if JCheckBox is selected

Hi can anyone look at my code and tell me why when I click the JButton and have a checkbox selected my image array does not go through the images like before. any help appreciated :)

JButton btnSubmit = new JButton("Submit");
        btnSubmit.addActionListener(new ActionListener() {
            int currentIndex = -1;

            public void actionPerformed(ActionEvent e) {

                if (chckbxEyes.isSelected()== false && chckbxNose.isSelected()== false && chckbxMouth.isSelected()== false) {

                    currentIndex = (currentIndex + 1) % backgroundIcons.length;
                    lblMyFace.setIcon(backgroundIcons[currentIndex]);

                }

                if (chckbxEyes.isSelected()) {
                    currentIndex = (currentIndex) % eyesIcons.length;
                    lblEyes.setIcon(eyesIcons[currentIndex]);

                }

                if (chckbxNose.isSelected()) {
                    currentIndex = (currentIndex) % noseIcons.length;
                    lblNose.setIcon(noseIcons[currentIndex]);

                }

                if (chckbxMouth.isSelected()) {
                    currentIndex = (currentIndex) % mouthIcons.length;
                    lblMouth.setIcon(mouthIcons[currentIndex]);
                }

if I change

if (chckbxEyes.isSelected()== false && chckbxNose.isSelected()== false && chckbxMouth.isSelected()== false) {

                    currentIndex = (currentIndex + 1) % backgroundIcons.length;
                    lblMyFace.setIcon(backgroundIcons[currentIndex]);

                }

to

if (e.getSource() == btnSubmit) {

                    currentIndex = (currentIndex + 1) % backgroundIcons.length;
                    lblMyFace.setIcon(backgroundIcons[currentIndex]);

                }

it works and goes through the array of image icons when I keep clicking the submit button. however, the background keeps changing when items are selected and I only want the background changed if no boxes are selected.

I hope you understand what i want to happen if not I am happy to clarify :)