note.java

自己写的java 的记事本,内有源码.和jar 文件

				});

		but_return.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				fileReturn_actionPerformed(e);
			}
		});
		but_revert.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				fileRevert_actionPerfomend(e);

			}
		});
		but_new.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				fileNew_actionPerformed(e);

			}
		});
		but_open.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				fileOpen_actionPerformed(e);
			}
		});
		but_save.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				fileSave_actionPerformed(e);
			}
		});
		but_cut.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				fileCut_actionPerformed(e);
			}
		});
		but_copy.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				fileCopy_actionPerformed(e);
			}
		});
		but_paste.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				filePaste_actionPerformed(e);
			}
		});
		ditFont.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				font_actionPerformed(e);
				final JFrame frame = new JFrame("字体");
				final FontChooser chooser = new FontChooser(frame);
				chooser.setVisible(true);
				@SuppressWarnings("unused")
				Font font = chooser.getSelectedFont();
			}
		});

		jtb.add(but_return);
		jtb.add(but_revert);
		jtb.add(but_new);
		jtb.add(but_open);
		jtb.add(but_save);
		jtb.add(but_cut);
		jtb.add(but_copy);
		jtb.add(but_paste);
		jtb.add(jlb_line);
		
		this.setJMenuBar(menuBar);
		this.add(jtb, "North");
		int ntWidth  = this.getSize().width;
		int ntHeigth = this.getSize().height;
	//	System.out.println(ntWidth+ "\n" + ntHeigth);
		
		setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
		setLocation((screenNote.width - ntWidth) / 2,
				(screenNote.height - ntHeigth) / 2);
		
		Font fontConfig = new Font("黑体", Font.ITALIC, 16);//默认字体设置
		fontConf(fontConfig);
		

	}

	

	public void fileReturn_actionPerformed(ActionEvent e) {
		returnDo();
	}

	protected void fileRevert_actionPerfomend(ActionEvent e) {
		revertDo();
	}
	private void fileTime_ActionPermed(ActionEvent e) {
		Calendar now=Calendar.getInstance();    //创建一个日历对象
        now.setTime(new Date());
        //年,月,日
        String str_Year,str_Month,str_Day,str_date;
        str_Year=String.valueOf(now.get(Calendar.YEAR));
        str_Month=String.valueOf(now.get(Calendar.MONTH)+1);
        str_Day=String.valueOf(now.get(Calendar.DAY_OF_MONTH));
        str_date=str_Year+" - "+str_Month+" - "+str_Day;
        //时,分,秒
        String hour,minute,second,str_time;
        hour=String.valueOf(now.get(Calendar.HOUR_OF_DAY));
        minute=String.valueOf(now.get(Calendar.MINUTE));
        second=String.valueOf(now.get(Calendar.SECOND));
        str_time=hour+"："+minute+"："+second;
        
        fileArea.insert(str_date+"\t"+str_time+"\n",fileArea.getCaretPosition());/*在光标所在的位置插入时间、日期*/
	}
	/*************************字体设置********************************/
	public static void fontConf(Font font) {
		String name = font.getFamily();
		int style = font.getStyle();
		int size = font.getSize();
		Font tempFont = new Font(name, style, size);
		//	System.out.println("这是在note中的字体 "+tempFont);
		fileArea.setFont(tempFont);

	}

	/************************字体设置结束*****************************/
	

	protected void fileNew_actionPerformed(ActionEvent e) {

		if (fileArea.getText().length() == 0) {
			fileArea.setText(null);
		}

		else {
			int decision = JOptionPane.showConfirmDialog(this, "文件已经改变  .\n"
					+ "是否要保存?", "记事本", JOptionPane.YES_NO_CANCEL_OPTION,
					JOptionPane.WARNING_MESSAGE);
			if (decision == JOptionPane.YES_OPTION) {

				JFileChooser fileSave = new JFileChooser();
				fileSave.setDialogTitle("保存文件");
				fileSave.addChoosableFileFilter(fileSave.getFileFilter());
				if (JFileChooser.APPROVE_OPTION != fileSave
						.showSaveDialog(this)) {
					return;
				}

				filePath = fileSave.getSelectedFile().toString();
			} else if (decision == JOptionPane.NO_OPTION) {
				fileArea.setText(null);

			} else {
				setVisible(true);
			}
		}
	}

	private void autoLine_WrapActionPerformed(java.awt.event.ActionEvent evt) {

		if (autoLine.getState() == true) {
			fileArea.setLineWrap(true);
		} else {
			fileArea.setLineWrap(false);
		}
	}

	public void fileExit_actionPerformed(ActionEvent e) {
		System.exit(0);
	}

	public void fileOpen_actionPerformed(ActionEvent e) {
		JFileChooser fileChooser = new JFileChooser();
		fileChooser.addChoosableFileFilter(fileChooser.getFileFilter());
		if (JFileChooser.APPROVE_OPTION != fileChooser.showOpenDialog(this))
			return;
		BufferedReader dataIn = null;
		try {
			dataIn = new BufferedReader(new FileReader(fileChooser
					.getSelectedFile().getPath()));
			String c = null;
			do {
				c = dataIn.readLine();
				if (c != null)
					fileArea.append(c + "\n");
			} while (c != null);
		} catch (Exception ex) {
			System.out.println("Catch exception:" + ex.toString());
		}
	}


	@SuppressWarnings("static-access")
	public void fileSave_actionPerformed(ActionEvent e1) {

		// 以下是将文件写入计算机!

		JFileChooser fileSave = new JFileChooser();
		fileSave.setDialogTitle("保存文件");
		fileSave.addChoosableFileFilter(fileSave.getFileFilter());
		fileSave.setVisible(true);
		if (fileSave.APPROVE_OPTION != fileSave.showSaveDialog(this))
			return;
		filePath = fileSave.getSelectedFile().toString();

		saveFile(filePath);

	}

	public void fileCut_actionPerformed(ActionEvent e) {
		fileArea.cut();
	}

	public void filePaste_actionPerformed(ActionEvent e) {
		fileArea.paste();
	}

	public void fileCopy_actionPerformed(ActionEvent e) {
		fileArea.copy();
	}

	public void fileFind_actionPerformed(ActionEvent e) {
		findDialog fd = new findDialog();
		fd.setVisible(true);

	}

	public void fileReplace_actionPermed(ActionEvent e) {
	Replace replace = new Replace();
	replace.setVisible(true);
	
	}
	

	public void font_actionPerformed(ActionEvent e) {

	}

	public void fileColor_actionPerformed(ActionEvent e) {
		new JColor().setVisible(true);

	}

	public void About_actionPerformed(ActionEvent e) {
		/*final JDialog jdlog = new JDialog(this, "关于...", true);
		jdlog.setSize(250, 100);
		final JButton jdb = new JButton("李宏博 制作.\n" + "    TCIT工作室   ");

		jdlog.add(jdb, "Center");
		jdb.addMouseListener(new MouseListener() {			public void mouseClicked(MouseEvent arg0) {				jdlog.dispose();
			}
			public void mouseEntered(MouseEvent arg0) {				jdb.setToolTipText("点击关闭此对话框");
			}
			public void mouseExited(MouseEvent arg0) {			}
			public void mousePressed(MouseEvent arg0) {			}
			public void mouseReleased(MouseEvent arg0) {			}

		});

		jdlog.setVisible(true);*/
		
		new helpFrame().setVisible(true);
	}
	
	public void exit() {
		if (isChange == false)
			System.exit(1);
		else {
			fileChange();
			saveFile(filePath);
			System.exit(1);

		}
	}

	public void fileChange() {

		int decision = JOptionPane.showConfirmDialog(this, "文件已经改变  .\n"
				+ "是否要保存?", "记事本", JOptionPane.YES_NO_CANCEL_OPTION,
				JOptionPane.WARNING_MESSAGE);
		if (decision == JOptionPane.YES_OPTION) {

			JFileChooser fileSave = new JFileChooser();
			fileSave.setDialogTitle("保存文件");
			fileSave.addChoosableFileFilter(fileSave.getFileFilter());
			if (JFileChooser.APPROVE_OPTION != fileSave.showSaveDialog(this)) {
				return;
			}

			filePath = fileSave.getSelectedFile().toString();
		} else if (decision == JOptionPane.NO_OPTION) {
			System.exit(1);

		} else {
			setVisible(true);
		}

	}
/****这里是实现有格式的保存 
 * 只要调用保存(saveFile )方法  先执行do{}其中的内容  
 * 循环一圈(保存完毕) 后 检查 参数 c 
 * c =null  退出循环 
 * 关闭 流
 */
	public void saveFile(String path) {
		try {
			FileWriter fw = new FileWriter(path);
			BufferedWriter bw = new BufferedWriter(fw);
			String c = null;
			do {
				String str = fileArea.getText();

				for (int i = 0; i < str.split("\n").length; i++) {
					bw.write(str.split("\n")[i]);
					bw.newLine();
				}
			} while (c!= null);
			bw.close();

		} catch (Exception e2) {
			System.out.println("有错误!" + e2.toString());
		}
	}


	/*************** 设置撤销按钮是否可撤销 *********************/
	private void Update() {
		menuFileReturn.setEnabled(undoManager.canUndo());
		but_return.setEnabled(undoManager.canUndo());

		menuFileRevert.setEnabled(undoManager.canRedo());
		but_revert.setEnabled(undoManager.canRedo());
	}

	/*************** 设置撤销按钮是否可撤销 *********************/
	public void returnDo() {
		try {
			undoManager.undo();
		} catch (CannotRedoException cre) {
		}
		Update();
	}

	/*************** 撤销按钮功能实现方法 *********************/
	public void revertDo() {
		try {
			undoManager.redo();
		} catch (CannotRedoException cre) {
		}
		Update();
	}
public static void main(String[] args){
	new Note().setVisible(true);
}

}