CODEWITHSUNDEEP
javaswingjbuttonimageicon
Lieuwe
Lieuwe

Reputation: 1840

Border problems when placing an ImageIcon on a JButton

I am creating image buttons as below

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Insets;

import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Demo {

private JFrame mainFrame;

static public Color BGCOLOUR1 = new Color(240, 240, 240);

public Demo() {

    try {
        UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    } catch (Exception ex) {
        ex.printStackTrace();
    } 

    mainFrame = new JFrame("DEMO");
    mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    mainFrame.setBackground(BGCOLOUR1);
    mainFrame.setSize(300, 300);
    mainFrame.setLayout(new BorderLayout());


    JPanel smButtonContainer = new JPanel();
    smButtonContainer.setLayout(new FlowLayout());
    smButtonContainer.setOpaque(true);
    smButtonContainer.setBackground(Color.WHITE);
    smButtonContainer.setBorder(BorderFactory.createEmptyBorder(25, 10, 5, 0));

    ImageIcon emailLogo = new ImageIcon(getClass().getResource("/resources/email.png"));
    JButton emailButton = new JButton(emailLogo);
    emailButton.setBorder(null);
    emailButton.setBorderPainted(false);
    emailButton.setBackground(Color.WHITE);
    emailButton.setMargin(new Insets(0, 0, 0, 0));

    smButtonContainer.add(emailButton);

    mainFrame.add(smButtonContainer);


}

public static void main(String[] args) {
    Demo demo = new Demo();
    demo.showUI();
}

private void showUI() {
    mainFrame.setVisible(true);
}

}

On my development machine (Fedora 23 / KDE) this looks fine:

enter image description here

But when I run the application on a Windows 7 machine the button looks raised:

enter image description here

Why does that happen & how can I prevent this?

Edit: Updated the example.

Upvotes: 0

Views: 191

Answers (1)

camickr
camickr

Reputation: 324147

You also need to add:

emailButton.setFocusPainted(false);

On Windows a dotted rectangle is painted to indicate the button has focus.

Upvotes: 3

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