记账本，C，Github，util

package util;

import java.awt.Component;
import java.awt.Dimension;

import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UnsupportedLookAndFeelException;

import gui.panel.WorkingPanel;

/**
 * 居中面板
 * 
 * @author 于修彦
 *
 */
public class CenterPanel extends JPanel {
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    private double rate; // 比例
    private JComponent c; // 面板上将要居中的组件
    private boolean stretch;// 是否缩放

    public CenterPanel(double rate, boolean stretch) {
        this.setLayout(null);
        this.rate = rate;
        this.stretch = stretch;
    }

    public CenterPanel(double rate) {
        this(rate, true);
    }

    /**
     * 重写重绘方法，在面板居中显示组件
     */
    public void repaint() {
        if (this.c != null) {
            Dimension containerSize = this.getSize();// 面板大小
            Dimension componentSize = this.c.getPreferredSize();// 获取组件调整之后的大小

            if (this.stretch) {
                // 设置这个组件大小
                this.c.setSize((int) (containerSize.width * this.rate), (int) (containerSize.height * this.rate));
            } else {
                this.c.setSize(componentSize);// 保持原来大小不变
            }
            // 将组件放到居中位置
            this.c.setLocation(containerSize.width / 2 - this.c.getWidth() / 2,
                    containerSize.height / 2 - this.c.getHeight() / 2);

        }
        super.repaint();
    }

    /**
     * 显示组件
     * 
     * @param p
     *            组件
     */
    public void show(JComponent p) {
        this.c = p;
        Component[] cs = this.getComponents();
        Component[] arrayOfComponent1;
        int j = (arrayOfComponent1 = cs).length;
        for (int i = 0; i < j; i++) { // 清除面板上原来的组件
            Component c = arrayOfComponent1[i];
            remove(c);
        }
        add(p);

        if ((p instanceof WorkingPanel)) {
            ((WorkingPanel) p).updateData();
        }
        updateUI();
    }
}

util1

package util;

import java.awt.Color;
import java.awt.Font;
import java.awt.Image;
import java.util.List;

import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;

import com.objectplanet.chart.BarChart;
import com.objectplanet.chart.Chart;

import entity.Record;

/**
 * 生成柱状图
 * 
 * @author 于修彦
 *
 */
public class ChartUtil {
    /**
     * 横轴下面的文字
     * 
     * @param rs
     *            数据集
     * @return 依据数据集生成的文字数组
     */
    private static String[] sampleLabels(List<Record> rs) {
        String[] sampleLabels = new String[rs.size()];
        for (int i = 0; i < sampleLabels.length; i++) {
            if (0 == i % 5)
                sampleLabels[i] = String.valueOf(i + 1 + "日");
        }

        return sampleLabels;

    }

    /**
     * 柱状图的柱的数据高度
     * 
     * @param rs
     *            数据集
     * @return 依据数据集生成的数据数组
     */
    public static double[] sampleValues(List<Record> rs) {
        double[] sampleValues = new double[rs.size()];
        for (int i = 0; i < sampleValues.length; i++) {
            sampleValues[i] = rs.get(i).getSpend();
        }

        return sampleValues;
    }

    /**
     * 获取柱状图的图片
     * 
     * @param rs
     *            数据集
     * @param width
     *            宽度
     * @param height
     *            高度
     * @return 结果图
     */
    public static Image getImage(List<Record> rs, int width, int height) {
        // 根据消费记录得到的样本数据
        double[] sampleValues = sampleValues(rs);
        // 根据消费记录得到的下方日期文本
        String[] sampleLabels = sampleLabels(rs);
        // 样本中的最大值
        int max = max(sampleValues);

        // 数据颜色
        Color[] sampleColors = new Color[] { ColorUtil.blueColor };

        // 柱状图
        BarChart chart = new BarChart();

        // 设置样本个数
        chart.setSampleCount(sampleValues.length);
        // 设置样本数据
        chart.setSampleValues(0, sampleValues);
        // 设置文字
        chart.setSampleLabels(sampleLabels);
        // 设置样本颜色
        chart.setSampleColors(sampleColors);
        // 设置取值范围
        chart.setRange(0, max * 1.2);
        // 显示背景横线
        chart.setValueLinesOn(true);
        // 显示文字
        chart.setSampleLabelsOn(true);
        // 把文字显示在下方
        chart.setSampleLabelStyle(Chart.BELOW);

        // 样本值的字体
        chart.setFont("rangeLabelFont", new Font("Arial", Font.BOLD, 12));
        // 显示图例说明
        chart.setLegendOn(true);
        // 把图例说明放在左侧
        chart.setLegendPosition(Chart.LEFT);
        // 图例说明中的文字
        chart.setLegendLabels(new String[] { "月消费报表" });
        // 图例说明的字体
        chart.setFont("legendFont", new Font("Dialog", Font.BOLD, 13));
        // 下方文字的字体
        chart.setFont("sampleLabelFont", new Font("Dialog", Font.BOLD, 13));
        // 图表中间背景颜色
        chart.setChartBackground(Color.white);
        // 图表整体背景颜色
        chart.setBackground(ColorUtil.backgroundColor);
        // 把图表转换为Image类型
        Image im = chart.getImage(width, height);
        return im;
    }

    public static int max(double[] sampleValues) {
        int max = 0;
        for (double v : sampleValues) {
            if (v > max)
                max = (int) v;
        }
        return max;

    }

    private static String[] sampleLabels() {
        String[] sampleLabels = new String[30];

        for (int i = 0; i < sampleLabels.length; i++) {
            if (0 == i % 5)
                sampleLabels[i] = String.valueOf(i + 1 + "日");
        }
        return sampleLabels;
    }

    public static Image getImage(int width, int height) {
        // 模拟样本数据
        double[] sampleValues = sampleValues();
        // 下方显示的文字
        String[] sampleLabels = sampleLabels();
        // 样本中的最大值
        int max = max(sampleValues);

        // 数据颜色
        Color[] sampleColors = new Color[] { ColorUtil.blueColor };

        // 柱状图
        BarChart chart = new BarChart();

        // 设置样本个数
        chart.setSampleCount(sampleValues.length);
        // 设置样本数据
        chart.setSampleValues(0, sampleValues);
        // 设置文字
        chart.setSampleLabels(sampleLabels);
        // 设置样本颜色
        chart.setSampleColors(sampleColors);
        // 设置取值范围
        chart.setRange(0, max * 1.2);
        // 显示背景横线
        chart.setValueLinesOn(true);
        // 显示文字
        chart.setSampleLabelsOn(true);
        // 把文字显示在下方
        chart.setSampleLabelStyle(Chart.BELOW);

        // 样本值的字体
        chart.setFont("rangeLabelFont", new Font("Arial", Font.BOLD, 12));
        // 显示图例说明
        chart.setLegendOn(true);
        // 把图例说明放在左侧
        chart.setLegendPosition(Chart.LEFT);
        // 图例说明中的文字
        chart.setLegendLabels(new String[] { "月消费报表" });
        // 图例说明的字体
        chart.setFont("legendFont", new Font("Dialog", Font.BOLD, 13));
        // 下方文字的字体
        chart.setFont("sampleLabelFont", new Font("Dialog", Font.BOLD, 13));
        // 图表中间背景颜色
        chart.setChartBackground(Color.white);
        // 图表整体背景颜色
        chart.setBackground(ColorUtil.backgroundColor);
        // 把图表转换为Image类型
        Image im = chart.getImage(width, height);
        return im;
    }

    private static double[] sampleValues() {

        double[] result = new double[30];
        for (int i = 0; i < result.length; i++) {
            result[i] = (int) (Math.random() * 300);
        }
        return result;

    }

    // public static void main(String[] args) {
    // JPanel p = new JPanel();
    // JLabel l = new JLabel();
    // Image img = ChartUtil.getImage(400, 300);
    // Icon icon = new ImageIcon(img);
    // l.setIcon(icon);
    // p.add(l);
    // GUIUtil.showPanel(p);
    // }

}

util2

package util;

import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.SwingWorker;

public class CircleProgressBar extends JPanel {

    private int minimumProgress;

    private int maximumProgress;

    private int progress;

    private String progressText;

    private Color backgroundColor;

    private Color foregroundColor;

    public CircleProgressBar() {
        minimumProgress = 0;
        maximumProgress = 100;
        progressText = "0%";
    }

    public void paint(Graphics g) {
        super.paint(g);
        Graphics2D graphics2d = (Graphics2D) g;
        // 开启抗锯齿
        graphics2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        int x = 0;
        int y = 0;
        int width = 0;
        int height = 0;
        int fontSize = 0;
        if (getWidth() >= getHeight()) {
            x = (getWidth() - getHeight()) / 2 + 25;
            y = 25;
            width = getHeight() - 50;
            height = getHeight() - 50;
            fontSize = getWidth() / 8;
        } else {
            x = 25;
            y = (getHeight() - getWidth()) / 2 + 25;
            width = getWidth() - 50;
            height = getWidth() - 50;
            fontSize = getHeight() / 8;
        }
        graphics2d.setStroke(new BasicStroke(20.0f));
        graphics2d.setColor(backgroundColor);
        graphics2d.drawArc(x, y, width, height, 0, 360);
        graphics2d.setColor(foregroundColor);
        graphics2d.drawArc(x, y, width, height, 90,
                -(int) (360 * ((progress * 1.0) / (maximumProgress - minimumProgress))));
        graphics2d.setFont(new Font("黑体", Font.BOLD, fontSize));
        FontMetrics fontMetrics = graphics2d.getFontMetrics();
        int digitalWidth = fontMetrics.stringWidth(progressText);
        int digitalAscent = fontMetrics.getAscent();
        graphics2d.setColor(foregroundColor);
        graphics2d.drawString(progressText, getWidth() / 2 - digitalWidth / 2, getHeight() / 2 + digitalAscent / 2);
    }

    public int getProgress() {
        return progress;
    }

    public void setProgress(int progress) {
        if (progress >= minimumProgress && progress <= maximumProgress)
            this.progress = progress;
        if (progress > maximumProgress)
            this.progress = maximumProgress;

        this.progressText = String.valueOf(progress + "%");

        this.repaint();
    }

    public Color getBackgroundColor() {
        return backgroundColor;
    }

    public void setBackgroundColor(Color backgroundColor) {
        this.backgroundColor = backgroundColor;
        this.repaint();
    }

    public Color getForegroundColor() {
        return foregroundColor;
    }

    public void setForegroundColor(Color foregroundColor) {
        this.foregroundColor = foregroundColor;
        this.repaint();
    }

}

util3