AlbumArtView.java

package com.quiltplayer.view.swing.views.impl;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;

import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;

import net.miginfocom.swing.MigLayout;

import org.jdesktop.animation.timing.Animator;
import org.jdesktop.animation.timing.Animator.RepeatBehavior;
import org.jdesktop.animation.timing.interpolation.PropertySetter;
import org.jdesktop.animation.timing.interpolation.SplineInterpolator;
import org.jdesktop.jxlayer.JXLayer;
import org.springframework.beans.factory.annotation.Autowired;

import com.quiltplayer.external.covers.model.LocalImage;
import com.quiltplayer.external.covers.util.ImageUtils;
import com.quiltplayer.model.Album;
import com.quiltplayer.view.swing.frame.QuiltPlayerFrame;
import com.quiltplayer.view.swing.layers.JScrollPaneLayerUI;
import com.quiltplayer.view.swing.panels.QScrollPane;
import com.quiltplayer.view.swing.panels.QScrollPane.ScrollDirection;
import com.quiltplayer.view.swing.views.View;

@org.springframework.stereotype.Component
public class AlbumArtView implements View {

    private JPanel panel;

    private Album album;

    private QScrollPane pane;

    private JXLayer<JScrollPane> jx;

    @Autowired
    private QuiltPlayerFrame frame;

    /*
     * (non-Javadoc)
     * 
     * @see org.quiltplayer.view.components.View#getUI()
     */
    @Override
    public JComponent getUI() {

        panel = new JPanel(new MigLayout("ins 0 2cm 0 0, fill")) {
            private static final long serialVersionUID = 1L;

            /*
             * (non-Javadoc)
             * 
             * @see javax.swing.JComponent#paintComponent(java.awt.Graphics)
             */
            @Override
            protected void paintComponent(Graphics g) {
                /* TODO Repaints the whole background every time? Look for solution */
                Graphics2D g2d = (Graphics2D) g;

                // final Color[] gradient = { ColorConstantsDark.BACKGROUND, new Color(90, 90, 90), new Color(40, 40,
                // 40),
                // new Color(20, 20, 20) };
                //
                // final float[] dist = { 0.0f, 0.5f, 0.55f, 1.0f };
                //
                // Point2D start = new Point2D.Float(0, 0);
                // Point2D end = new Point2D.Float(0, getHeight());
                //
                // LinearGradientPaint p = new LinearGradientPaint(start, end, dist, gradient);
                // g2d.setPaint(p);
                //
                // g2d.fillRect(0, 0, getWidth(), getHeight());
            }
        };

        if (album != null && album.getImages().size() > 0) {
            for (LocalImage localImage : album.getImages()) {
                ImageIcon icon = new ImageIcon(localImage.getLargeImage().getAbsolutePath());

                Double d = frame.getHeight() * 0.60;

                /* Scale if too large depending on screen */
                if (icon.getIconHeight() > d.intValue()) {
                    icon = ImageUtils.scalePicture(icon, d.intValue());
                }

                final JLabel label = new JLabel(icon);
                label.setBorder(BorderFactory.createLineBorder(Color.WHITE, 20));

                panel.add(label, "center, gapx 0.3cm");
            }
        }

        /* Otherwise gray */
        panel.setOpaque(true);
        panel.setDoubleBuffered(false);

        pane = new QScrollPane(panel, ScrollDirection.HORIZONTAL);
        pane.setOpaque(false);

        jx = new JXLayer<JScrollPane>(pane, new JScrollPaneLayerUI());
        jx.setOpaque(false);

        return jx;
    }

    public void animate() {
        PropertySetter setter = new PropertySetter(pane.getViewport(), "viewPosition", new Point(0, 0), new Point(panel
                .getWidth(), 0));
        Animator animator = new Animator(25000, Animator.INFINITE, RepeatBehavior.REVERSE, setter);
        animator.setInterpolator(new SplineInterpolator(0f, .02f, 0f, 1f));
        animator.start();
    }

    /**
     * @param album
     *            the album to set
     */
    public final void setAlbum(Album album) {
        this.album = album;
    }
}