Is there a way to display 2D Graphics onto a JScrollPane

Question

I have a piece of code that creates a Frequency Table Bar Chart ChartPanel(String chartTitle, ArrayList<String> chartValues, ArrayList<Integer> chartValuesFrequency).

The code currently displays all the data onto the current viewport size. I've tried to set the bar width to a fixes size of 300 however the bar chart goes off the panel. I had then decided to add it onto a JScrollPane and setting the preferred size to a width of around 3000. However This is really inefficient as the number of chartValues could change.

import javax.swing.*;
import java.awt.*;
import java.util.ArrayList;

public class ChartPanel extends JPanel {
    private final String title;
    private final ArrayList<String> values;
    private final ArrayList<Integer> frequency;
    private int clientWidth;

    public ChartPanel(String chartTitle, ArrayList<String> chartValues, ArrayList<Integer> chartValuesFrequency) {
        this.title = chartTitle;
        this.values = chartValues;
        this.frequency = chartValuesFrequency;
    }

    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        if (frequency == null || frequency.size() == 0)
            return;

        int minValue = 0;
        int maxValue = 0;
        for (Integer integer : frequency) {
            if (minValue > integer)
                minValue = integer;
            if (maxValue < integer)
                maxValue = integer;
        }

        Dimension d = getSize();
        clientWidth = d.width;
        int clientHeight = d.height;
        int barWidth = 300;

        Font titleFont = new Font("SansSerif", Font.BOLD, 20);
        FontMetrics titleFontMetrics = g.getFontMetrics(titleFont);
        Font labelFont = new Font("SansSerif", Font.PLAIN, 10);
        FontMetrics labelFontMetrics = g.getFontMetrics(labelFont);

        int titleWidth = titleFontMetrics.stringWidth(title);
        int y = titleFontMetrics.getAscent();
        int x = (clientWidth - titleWidth) / 2;
        g.setFont(titleFont);
        g.drawString(title, x, y);

        int top = titleFontMetrics.getHeight();
        int bottom = labelFontMetrics.getHeight();
        if (maxValue == minValue)
            return;
        int scale = (clientHeight - top - bottom) / (maxValue - minValue);
        y = clientHeight - labelFontMetrics.getDescent();
        g.setFont(labelFont);

        for (int i = 0; i < frequency.size(); i++) {
            int valueX = i * barWidth + 1;
            int valueY = top;
            int height = frequency.get(i)* scale;
            if (frequency.get(i) >= 0)
                valueY += (maxValue - frequency.get(i)) * scale;
            else {
                valueY += maxValue * scale;
                height = -height;
            }

            g.setColor(Color.LIGHT_GRAY);
            g.fillRect(valueX, valueY, barWidth - 2, height);
            g.setColor(Color.black);
            g.drawRect(valueX, valueY, barWidth - 2, height);
            String label = values.get(i);
            if (label.equals("")){
                int labelWidth = labelFontMetrics.stringWidth(values.get(i));
                x = i * barWidth + (barWidth - labelWidth) / 2;
                g.drawString("Null Value", x, y);
            }else{
                int labelWidth = labelFontMetrics.stringWidth(values.get(i));
                x = i * barWidth + (barWidth - labelWidth) / 2;
                g.drawString(values.get(i), x, y);
            }
        }
    }

}

Any help is greatly appreciated.