JPotify-java-spotify/MovingBarJslider.java at master · pouyanhessabi/JPotify-java-spotify · GitHub

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import javax.swing.*;
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

public class MovingBarJslider extends JSlider {
    private UIDefaults d;
    private UIDefaults z;

    public MovingBarJslider(int min, int max, int value) {
        super(min, max, value);
        this.setOpaque(false);
        d = new UIDefaults();
        d.put("Slider:SliderTrack[Enabled].backgroundPainter", new Painter<MovingBarJslider>() {
            @Override
            public void paint(Graphics2D g, MovingBarJslider c, int w, int h) {
                int arc = 10;
                int trackHeight = 8;
                int trackWidth = w - 2;
                int fillTop = 4;
                int fillLeft = 1;

                g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                        RenderingHints.VALUE_ANTIALIAS_ON);
                g.setStroke(new BasicStroke(1.5f));
                g.setColor(Color.GRAY);
                g.fillRoundRect(fillLeft, fillTop, trackWidth, trackHeight, arc, arc);

                int fillBottom = fillTop + trackHeight;
                int fillRight = xPositionForValue(
                        c.getValue(), c,
                        new Rectangle(fillLeft, fillTop, trackWidth, fillBottom - fillTop));

                g.setColor(new Color(40, 215, 40));
                g.fillRect(fillLeft + 1, fillTop + 1, fillRight - fillLeft, fillBottom - fillTop);

                g.setColor(Color.GRAY);
                g.drawRoundRect(fillLeft, fillTop, trackWidth, trackHeight, arc, arc);
            }

            protected int xPositionForValue(int value, MovingBarJslider slider, Rectangle trackRect) {
                int min = slider.getMinimum();
                int max = slider.getMaximum();
                int trackLength = trackRect.width;
                double valueRange = (double) max - (double) min;
                double pixelsPerValue = (double) trackLength / valueRange;
                int trackLeft = trackRect.x;
                int trackRight = trackRect.x + (trackRect.width - 1);
                int xPosition;

                xPosition = trackLeft;
                xPosition += Math.round(pixelsPerValue * ((double) value - min));

                xPosition = Math.max(trackLeft, xPosition);
                xPosition = Math.min(trackRight, xPosition);

                return xPosition;
            }
        });

        z = new UIDefaults();
        z.put("Slider:SliderTrack[Enabled].backgroundPainter", new Painter<MovingBarJslider>() {
            @Override
            public void paint(Graphics2D g, MovingBarJslider c, int w, int h) {
                int arc = 10;
                int trackHeight = 8;
                int trackWidth = w - 2;
                int fillTop = 4;
                int fillLeft = 1;

                g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                        RenderingHints.VALUE_ANTIALIAS_ON);
                g.setStroke(new BasicStroke(1.5f));
                g.setColor(Color.GRAY);
                g.fillRoundRect(fillLeft, fillTop, trackWidth, trackHeight, arc, arc);

                int fillBottom = fillTop + trackHeight;
                int fillRight = xPositionForValue(
                        c.getValue(), c,
                        new Rectangle(fillLeft, fillTop, trackWidth, fillBottom - fillTop));

                g.setColor(new Color(40, 215, 40));
                g.fillRect(fillLeft + 1, fillTop + 1, fillRight - fillLeft, fillBottom - fillTop);

                g.setColor(Color.GRAY);
                g.drawRoundRect(fillLeft, fillTop, trackWidth, trackHeight, arc, arc);
            }

            protected int xPositionForValue(int value, MovingBarJslider slider, Rectangle trackRect) {
                int min = slider.getMinimum();
                int max = slider.getMaximum();
                int trackLength = trackRect.width;
                double valueRange = (double) max - (double) min;
                double pixelsPerValue = (double) trackLength / valueRange;
                int trackLeft = trackRect.x;
                int trackRight = trackRect.x + (trackRect.width - 1);
                int xPosition;

                xPosition = trackLeft;
                xPosition += Math.round(pixelsPerValue * ((double) value - min));

                xPosition = Math.max(trackLeft, xPosition);
                xPosition = Math.min(trackRight, xPosition);

                return xPosition;
            }
        });

        putClientProperty("Nimbus.Overrides", z);
        this.addMouseListener(new MouseAdapter() {

        });
    }
}