115 lines
2.4 KiB
Java
115 lines
2.4 KiB
Java
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package net.sourceforge.tuned.ui;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.beans.PropertyChangeEvent;
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import java.beans.PropertyChangeListener;
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import javax.swing.BorderFactory;
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import javax.swing.Icon;
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import javax.swing.JComponent;
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import javax.swing.JLabel;
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import javax.swing.JScrollPane;
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import javax.swing.OverlayLayout;
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import javax.swing.Timer;
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public class LoadingOverlayPane extends JComponent {
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public static final String LOADING_PROPERTY = "loading";
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private final JLabel loadingLabel;
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private boolean overlayEnabled = false;
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private int millisToOverlay = 500;
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private final JComponent view;
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public LoadingOverlayPane(JComponent component, Icon animation) {
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this(component, animation, getView(component));
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}
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public LoadingOverlayPane(JComponent component, Icon animation, JComponent view) {
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this.view = view;
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setLayout(new OverlayLayout(this));
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component.setAlignmentX(1.0f);
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component.setAlignmentY(0.0f);
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loadingLabel = new JLabel(animation);
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loadingLabel.setBorder(BorderFactory.createEmptyBorder(10, 0, 0, 20));
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loadingLabel.setAlignmentX(1.0f);
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loadingLabel.setAlignmentY(0.0f);
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loadingLabel.setMaximumSize(loadingLabel.getPreferredSize());
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add(loadingLabel);
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add(component);
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setOverlayVisible(false);
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view.addPropertyChangeListener(LOADING_PROPERTY, loadingListener);
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}
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private static JComponent getView(JComponent component) {
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if (component instanceof JScrollPane) {
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JScrollPane scrollPane = (JScrollPane) component;
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return (JComponent) scrollPane.getViewport().getView();
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}
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return component;
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}
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public JComponent getView() {
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return view;
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}
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public void setOverlayVisible(boolean b) {
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overlayEnabled = b;
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if (overlayEnabled) {
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new OverlayTimer().start();
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} else {
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loadingLabel.setVisible(false);
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}
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}
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private class OverlayTimer extends Timer implements ActionListener {
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public OverlayTimer() {
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super(millisToOverlay, null);
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addActionListener(this);
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setRepeats(false);
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}
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public void actionPerformed(ActionEvent e) {
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if (overlayEnabled) {
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loadingLabel.setVisible(true);
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}
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}
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}
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private final PropertyChangeListener loadingListener = new PropertyChangeListener() {
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@Override
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public void propertyChange(PropertyChangeEvent evt) {
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Boolean loading = (Boolean) evt.getNewValue();
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setOverlayVisible(loading);
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}
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};
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}
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