记账本，C，Github，util

时间：2023-03-09 18:58:27
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

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