Example usage for javax.swing ImageIcon setImageObserver

Introduction

In this page you can find the example usage for javax.swing ImageIcon setImageObserver.

Prototype

public void setImageObserver(ImageObserver observer) 

Source Link

Document

Sets the image observer for the image.

Usage

From source file:Main.java

static ImageIcon makeImageIcon(URL url, JComboBox combo, int row) {
    ImageIcon icon = new ImageIcon(url);
    icon.setImageObserver(new ImageObserver() {
        public boolean imageUpdate(Image img, int infoflags, int x, int y, int w, int h) {
            if (combo.isShowing() && (infoflags & (FRAMEBITS | ALLBITS)) != 0) {
                if (combo.getSelectedIndex() == row) {
                    combo.repaint();/* w w w. j a v  a 2  s  .c  o  m*/
                }
                BasicComboPopup p = (BasicComboPopup) combo.getAccessibleContext().getAccessibleChild(0);
                JList list = p.getList();
                if (list.isShowing()) {
                    list.repaint(list.getCellBounds(row, row));
                }
            }
            return (infoflags & (ALLBITS | ABORT)) == 0;
        };
    });
    return icon;
}

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From source file:musiccrawler.App.java

private JPanel loadingPanel() {
    JPanel panel = new JPanel();
    BoxLayout layoutMgr = new BoxLayout(panel, BoxLayout.PAGE_AXIS);
    panel.setLayout(layoutMgr);/*from  w  w  w .j  av a  2s.  c om*/
    ClassLoader cldr = this.getClass().getClassLoader();
    java.net.URL imageURL = cldr.getResource("image/ajax-loader.gif");
    ImageIcon imageIcon = new ImageIcon(imageURL);
    JLabel iconLabel = new JLabel();
    iconLabel.setIcon(imageIcon);
    imageIcon.setImageObserver(iconLabel);
    JLabel label = new JLabel("Loading...");
    panel.add(iconLabel);
    panel.add(label);
    return panel;
}

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