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java-simple-notepad
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杨海瑞 3 days ago
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commit 6b7abc3393
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23
src/com/yyj/nodepad/util/Clock.java
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package com.yyj.nodepad.util;
import java.util.Calendar;
import java.util.GregorianCalendar;
import com.yyj.nodepad.view.NotepadMainFrame;
public class Clock extends Thread{
public void run() {
while (true) {
GregorianCalendar time = new GregorianCalendar();
int hour = time.get(Calendar.HOUR_OF_DAY);
int min = time.get(Calendar.MINUTE);
int second = time.get(Calendar.SECOND);
NotepadMainFrame.label1.setText(" µ±Ç°Ê±¼ä£º" + hour + ":" + min + ":" + second);
try {
Thread.sleep(1000);
} catch (InterruptedException exception) {
}
}
}
}

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src/com/yyj/nodepad/util/MQFontChooser.java
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package com.yyj.nodepad.util;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GraphicsEnvironment;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.PlainDocument;
/**
* 这是自己找的一份字体选择器的资料
* 新建一个类引入系统字体的样式包
* @author Yujie_Yang
*/
public class MQFontChooser extends JDialog {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
* 选择取消按钮的返回值
*/
public static final int CANCEL_OPTION = 0;
/**
* 选择确定按钮的返回值
*/
public static final int APPROVE_OPTION = 1;
/**
* 中文预览的字符串
*/
private static final String CHINA_STRING = "神马都是浮云！";
/**
* 英文预览的字符串
*/
private static final String ENGLISH_STRING = "Hello Kitty！";
/**
* 数字预览的字符串
*/
private static final String NUMBER_STRING = "0123456789";
// 预设字体，也是将来要返回的字体
private Font font = null;
// 字体选择器组件容器
private Box box = null;
// 字体文本框
private JTextField fontText = null;
// 样式文本框
private JTextField styleText = null;
// 文字大小文本框
private JTextField sizeText = null;
// 预览文本框
private JTextField previewText = null;
// 中文预览
private JRadioButton chinaButton = null;
// 英文预览
private JRadioButton englishButton = null;
// 数字预览
private JRadioButton numberButton = null;
// 字体选择框
@SuppressWarnings("rawtypes")
private JList fontList = null;
// 样式选择器
@SuppressWarnings("rawtypes")
private JList styleList = null;
// 文字大小选择器
@SuppressWarnings("rawtypes")
private JList sizeList = null;
// 确定按钮
private JButton approveButton = null;
// 取消按钮
private JButton cancelButton = null;
// 所有字体
private String [] fontArray = null;
// 所有样式
private String [] styleArray = {"常规", "粗体", "斜体", "粗斜体"};
// 所有预设字体大小
private String [] sizeArray = {"8", "9", "10", "11", "12", "14", "16", "18", "20", "22", "24", "26", "28", "36", "48", "初号", "小初", "一号", "小一", "二号", "小二", "三号", "小三", "四号", "小四", "五号", "小五", "六号", "小六", "七号", "八号"};
// 上面数组中对应的字体大小
private int [] sizeIntArray = {8, 9, 10, 11, 12, 14, 16, 18, 20, 22, 24, 26, 28, 36, 48, 42, 36, 26, 24, 22, 18, 16, 15, 14, 12, 10, 9, 8, 7, 6, 5};
// 返回的数值，默认取消
private int returnValue = CANCEL_OPTION;
/**
* 体构造一个字体选择器
*/
public MQFontChooser() {
this(new Font("宋体", Font.PLAIN, 12));
}
/**
* 使用给定的预设字体构造一个字体选择器
* @param font 字体
*/
public MQFontChooser(Font font) {
setTitle("字体选择器");
this.font = font;
// 初始化UI组件
init();
// 添加监听器
addListener();
// 按照预设字体显示
setup();
// 基本设置
setModal(true);
setResizable(false);
// 自适应大小
pack();
}
/**
* 初始化组件
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
private void init(){
// 获得系统字体
GraphicsEnvironment eq = GraphicsEnvironment.getLocalGraphicsEnvironment();
fontArray = eq.getAvailableFontFamilyNames();
// 主容器
box = Box.createVerticalBox();
box.setBorder(BorderFactory.createEmptyBorder(8, 8, 8, 8));
fontText = new JTextField();
fontText.setEditable(false);
fontText.setBackground(Color.WHITE);
styleText = new JTextField();
styleText.setEditable(false);
styleText.setBackground(Color.WHITE);
sizeText = new JTextField("12");
// 给文字大小文本框使用的Document文档，制定了一些输入字符的规则
Document doc = new PlainDocument(){
/**
*
*/
private static final long serialVersionUID = 1L;
public void insertString(int offs, String str, AttributeSet a)
throws BadLocationException {
if (str == null) {
return;
}
if (getLength() >= 3) {
return;
}
if (!str.matches("[0-9]+") && !str.equals("初号") && !str.equals("小初") && !str.equals("一号") && !str.equals("小一") && !str.equals("二号") && !str.equals("小二") && !str.equals("三号") && !str.equals("小三") && !str.equals("四号") && !str.equals("小四") && !str.equals("五号") && !str.equals("小五") && !str.equals("六号") && !str.equals("小六") && !str.equals("七号") && !str.equals("八号")) {
return;
}
super.insertString(offs, str, a);
sizeList.setSelectedValue(sizeText.getText(), true);
}
};
sizeText.setDocument(doc);
previewText = new JTextField(20);
previewText.setHorizontalAlignment(JTextField.CENTER);
previewText.setEditable(false);
previewText.setBackground(Color.WHITE);
chinaButton = new JRadioButton("中文预览", true);
englishButton = new JRadioButton("英文预览");
numberButton = new JRadioButton("数字预览");
ButtonGroup bg = new ButtonGroup();
bg.add(chinaButton);
bg.add(englishButton);
bg.add(numberButton);
fontList = new JList(fontArray);
styleList = new JList(styleArray);
sizeList = new JList(sizeArray);
approveButton = new JButton("确定");
cancelButton = new JButton("取消");
Box box1 = Box.createHorizontalBox();
JLabel l1 = new JLabel("字体:");
JLabel l2 = new JLabel("字形:");
JLabel l3 = new JLabel("大小:");
l1.setPreferredSize(new Dimension(165, 14));
l1.setMaximumSize(new Dimension(165, 14));
l1.setMinimumSize(new Dimension(165, 14));
l2.setPreferredSize(new Dimension(95, 14));
l2.setMaximumSize(new Dimension(95, 14));
l2.setMinimumSize(new Dimension(95, 14));
l3.setPreferredSize(new Dimension(80, 14));
l3.setMaximumSize(new Dimension(80, 14));
l3.setMinimumSize(new Dimension(80, 14));
box1.add(l1);
box1.add(l2);
box1.add(l3);
Box box2 = Box.createHorizontalBox();
fontText.setPreferredSize(new Dimension(160, 20));
fontText.setMaximumSize(new Dimension(160, 20));
fontText.setMinimumSize(new Dimension(160, 20));
box2.add(fontText);
box2.add(Box.createHorizontalStrut(5));
styleText.setPreferredSize(new Dimension(90, 20));
styleText.setMaximumSize(new Dimension(90, 20));
styleText.setMinimumSize(new Dimension(90, 20));
box2.add(styleText);
box2.add(Box.createHorizontalStrut(5));
sizeText.setPreferredSize(new Dimension(80, 20));
sizeText.setMaximumSize(new Dimension(80, 20));
sizeText.setMinimumSize(new Dimension(80, 20));
box2.add(sizeText);
Box box3 = Box.createHorizontalBox();
JScrollPane sp1 = new JScrollPane(fontList);
sp1.setPreferredSize(new Dimension(160, 100));
sp1.setMaximumSize(new Dimension(160, 100));
sp1.setMaximumSize(new Dimension(160, 100));
box3.add(sp1);
box3.add(Box.createHorizontalStrut(5));
JScrollPane sp2 = new JScrollPane(styleList);
sp2.setPreferredSize(new Dimension(90, 100));
sp2.setMaximumSize(new Dimension(90, 100));
sp2.setMinimumSize(new Dimension(90, 100));
box3.add(sp2);
box3.add(Box.createHorizontalStrut(5));
JScrollPane sp3 = new JScrollPane(sizeList);
sp3.setPreferredSize(new Dimension(80, 100));
sp3.setMaximumSize(new Dimension(80, 100));
sp3.setMinimumSize(new Dimension(80, 100));
box3.add(sp3);
Box box4 = Box.createHorizontalBox();
Box box5 = Box.createVerticalBox();
JPanel box6 = new JPanel(new BorderLayout());
box5.setBorder(BorderFactory.createTitledBorder("字符集"));
box6.setBorder(BorderFactory.createTitledBorder("示例"));
box5.add(chinaButton);
box5.add(englishButton);
box5.add(numberButton);
box5.setPreferredSize(new Dimension(90, 95));
box5.setMaximumSize(new Dimension(90, 95));
box5.setMinimumSize(new Dimension(90, 95));
box6.add(previewText);
box6.setPreferredSize(new Dimension(250, 95));
box6.setMaximumSize(new Dimension(250, 95));
box6.setMinimumSize(new Dimension(250, 95));
box4.add(box5);
box4.add(Box.createHorizontalStrut(4));
box4.add(box6);
Box box7 = Box.createHorizontalBox();
box7.add(Box.createHorizontalGlue());
box7.add(approveButton);
box7.add(Box.createHorizontalStrut(5));
box7.add(cancelButton);
box.add(box1);
box.add(box2);
box.add(box3);
box.add(Box.createVerticalStrut(5));
box.add(box4);
box.add(Box.createVerticalStrut(5));
box.add(box7);
getContentPane().add(box);
}
/**
* 按照预设字体显示
*/
private void setup() {
String fontName = font.getFamily();
int fontStyle = font.getStyle();
int fontSize = font.getSize();
/*
* 如果预设的文字大小在选择列表中，则通过选择该列表中的某项进行设值，否则直接将预设文字大小写入文本框
*/
boolean b = false;
for (int i = 0; i < sizeArray.length; i++) {
if (sizeArray[i].equals(String.valueOf(fontSize))) {
b = true;
break;
}
}
if(b){
// 选择文字大小列表中的某项
sizeList.setSelectedValue(String.valueOf(fontSize), true);
}else{
sizeText.setText(String.valueOf(fontSize));
}
// 选择字体列表中的某项
fontList.setSelectedValue(fontName, true);
// 选择样式列表中的某项
styleList.setSelectedIndex(fontStyle);
// 预览默认显示中文字符
chinaButton.doClick();
// 显示预览
setPreview();
}
/**
* 添加所需的事件监听器
*/
private void addListener() {
sizeText.addFocusListener(new FocusListener() {
public void focusLost(FocusEvent e) {
setPreview();
}
public void focusGained(FocusEvent e) {
sizeText.selectAll();
}
});
// 字体列表发生选择事件的监听器
fontList.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
if (!e.getValueIsAdjusting()) {
fontText.setText(String.valueOf(fontList.getSelectedValue()));
// 设置预览
setPreview();
}
}
});
styleList.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
if (!e.getValueIsAdjusting()) {
styleText.setText(String.valueOf(styleList.getSelectedValue()));
// 设置预览
setPreview();
}
}
});
sizeList.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
if (!e.getValueIsAdjusting()) {
if(!sizeText.isFocusOwner()){
sizeText.setText(String.valueOf(sizeList.getSelectedValue()));
}
// 设置预览
setPreview();
}
}
});
// 编码监听器
EncodeAction ea = new EncodeAction();
chinaButton.addActionListener(ea);
englishButton.addActionListener(ea);
numberButton.addActionListener(ea);
// 确定按钮的事件监听
approveButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
// 组合字体
font = groupFont();
// 设置返回值
returnValue = APPROVE_OPTION;
// 关闭窗口
disposeDialog();
}
});
// 取消按钮事件监听
cancelButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
disposeDialog();
}
});
}
/**
* 显示字体选择器
* @param owner 上层所有者
* @return 该整形返回值表示用户点击了字体选择器的确定按钮或取消按钮，参考本类常量字段APPROVE_OPTION和CANCEL_OPTION
*/
public final int showFontDialog(JFrame owner) {
setLocationRelativeTo(owner);
setVisible(true);
return returnValue;
}
/**
* 返回选择的字体对象
* @return 字体对象
*/
public final Font getSelectFont() {
return font;
}
/**
* 关闭窗口
*/
private void disposeDialog() {
MQFontChooser.this.removeAll();
MQFontChooser.this.dispose();
}
/**
* 显示错误消息
* @param errorMessage 错误消息
*/
private void showErrorDialog(String errorMessage) {
JOptionPane.showMessageDialog(this, errorMessage, "错误", JOptionPane.ERROR_MESSAGE);
}
/**
* 设置预览
*/
private void setPreview() {
Font f = groupFont();
previewText.setFont(f);
}
/**
* 按照选择组合字体
* @return 字体
*/
private Font groupFont() {
String fontName = fontText.getText();
int fontStyle = styleList.getSelectedIndex();
String sizeStr = sizeText.getText().trim();
// 如果没有输入
if(sizeStr.length() == 0) {
showErrorDialog("字体（大小）必须是有效“数值！");
return null;
}
int fontSize = 0;
// 通过循环对比文字大小输入是否在现有列表内
for (int i = 0; i < sizeArray.length; i++) {
if(sizeStr.equals(sizeArray[i])){
fontSize = sizeIntArray[i];
break;
}
}
// 没有在列表内
if (fontSize == 0) {
try{
fontSize = Integer.parseInt(sizeStr);
if(fontSize < 1){
showErrorDialog("字体（大小）必须是有效“数值”！");
return null;
}
}catch (NumberFormatException nfe) {
showErrorDialog("字体（大小）必须是有效“数值”！");
return null;
}
}
return new Font(fontName, fontStyle, fontSize);
}
/**
* 编码选择事件的监听动作
*
*/
class EncodeAction implements ActionListener {
public void actionPerformed(ActionEvent e) {
if (e.getSource().equals(chinaButton)) {
previewText.setText(CHINA_STRING);
} else if (e.getSource().equals(englishButton)) {
previewText.setText(ENGLISH_STRING);
} else {
previewText.setText(NUMBER_STRING);
}
}
}
}

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src/com/yyj/nodepad/util/SystemParam.java
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package com.yyj.nodepad.util;
/**
* 系统参数
* @author Yujie_Yang
*
*/
public class SystemParam {
/**
* 当前系统换行符
*/
public static final String LINE_SEPARATOR=System.getProperty("line.separator");
}

85
src/com/yyj/nodepad/util/TestLine.java
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package com.yyj.nodepad.util;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Rectangle;
public class TestLine extends javax.swing.JComponent {
/**
* ×ó²àÏÔʾÐкÅ
*/
private static final long serialVersionUID = 1L;
private final Font DEFAULT_FONT = new Font(Font.MONOSPACED, Font.PLAIN, 13);
public final Color DEFAULT_BACKGROUD = new Color(228, 228, 228);
public final Color DEFAULT_FOREGROUD = Color.red;
public final int nHEIGHT = Integer.MAX_VALUE - 1000000;
public final int MARGIN = 5;
private int lineHeight;
private int fontLineHeight;
private int currentRowWidth;
private FontMetrics fontMetrics;
public TestLine() {
setFont(DEFAULT_FONT);
setForeground(DEFAULT_FOREGROUD);
setBackground(DEFAULT_BACKGROUD);
setPreferredSize(9999);
}
public void setPreferredSize(int row) {
int width = fontMetrics.stringWidth(String.valueOf(row));
if (currentRowWidth < width) {
currentRowWidth = width;
setPreferredSize(new Dimension(2 * MARGIN + width + 1, nHEIGHT));
}
}
@Override
public void setFont(Font font) {
super.setFont(font);
fontMetrics = getFontMetrics(getFont());
fontLineHeight = fontMetrics.getHeight();
}
public int getLineHeight() {
if (lineHeight == 0) {
return fontLineHeight;
}
return lineHeight;
}
public void setLineHeight(int lineHeight) {
if (lineHeight > 0) {
this.lineHeight = lineHeight;
}
}
public int getStartOffset() {
return 4;
}
@Override
protected void paintComponent(Graphics g) {
int nlineHeight = getLineHeight();
int startOffset = getStartOffset();
Rectangle drawHere = g.getClipBounds();
g.setColor(getBackground());
g.fillRect(drawHere.x, drawHere.y, drawHere.width, drawHere.height);
g.setColor(getForeground());
int startLineNum = (drawHere.y / nlineHeight) + 1;
int endLineNum = startLineNum + (drawHere.height / nlineHeight);
int start = (drawHere.y / nlineHeight) * nlineHeight + nlineHeight - startOffset;
for (int i = startLineNum; i <= endLineNum; ++i) {
String lineNum = String.valueOf(i);
int width = fontMetrics.stringWidth(lineNum);
g.drawString(lineNum + " ", MARGIN + currentRowWidth - width - 1, start);
start += nlineHeight;
}
setPreferredSize(endLineNum);
}
}

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src/com/yyj/nodepad/view/NotepadMainFrame.java
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src/com/yyj/nodepad/view/my_notepad.cld
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src/readme.txt
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导入eclipse,右击NotepadMainFrame
我用的是jdk1.7,如果出现不能运行，可以右击项目Build Path更改jdk
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