mynotepadui.java

自己用Java写的记事本加聊天的集成软件。方便大家的使用。

    			});
    	
      //MenuItem-Cut
    	cut.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					cut();
    				}
    			});
    	
     //MenuItem-Copy
    	copy.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					copy();
    				}
    			});
    	
    //MenuItem-Paste
    	paste.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					paste();
    				}
    			});
    	
   //MenuItem-Auto change line
    	changeLine.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					changeLine();
    				}
    			});
   
    	
  //MenuItem-Cancle change line
    	cancleChangeLine.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					cancleChangeLine();
    				}
    			});
  //MenuItem-Always on top
    	top.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					alwaysOnTop();
    				}
    			});
 
  //MenuItem-Canle Always on top
    	cancleOnTop.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					cancleAlwaysOnTop();
    				}
    			});  	
  //MenuItem-About MyNotePad
    	about.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					//Display the dialogue
    					JOptionPane.showOptionDialog(null,
    							"The program's name:\n   MyNotePad\n" +
    							"Author:\n    Bryant.Hang\n" +
    							"Introduction:\n    A tool including a word editing tool and a chating tool.\n" +
    							"My blog:\n    http://blog.csdn.net/superhj1987\n"+"If you have questions,please send email to [e-mail]!",
    							"About MyNotePad",
    							JOptionPane.DEFAULT_OPTION,
    							JOptionPane.INFORMATION_MESSAGE,
    							null,null,null);
    				}
    			});
    	
    	chatServer.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					new ChatServer();
    				}
    			});
    	chatServerButton.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					new ChatServer();
    				}
    			});
    	chatClient.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					new ChatClient();
    				}
    			});
    	chatClientButton.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					new ChatClient();
    				}
    			});
    	redItem.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					textArea.setForeground(Color.red);
    				}
    			});
    	greenItem.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					textArea.setForeground(Color.green);
    				}
    			});
    	yellowItem.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					textArea.setForeground(Color.yellow);
    				}
    			});
    	blackItem.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					textArea.setForeground(Color.black);
    				}
    			});
    	blueItem.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					textArea.setForeground(Color.blue);
    				}
    			});
    	redBG.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					textArea.setBackground(Color.red);
    				}
    			});
    	greenBG.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					textArea.setBackground(Color.green);
    				}
    			});
    	yellowBG.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					textArea.setBackground(Color.yellow);
    				}
    			});
    	blackBG.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					textArea.setBackground(Color.black);
    				}
    			});
    	blueBG.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					textArea.setBackground(Color.blue);
    				}
    			});
    	whiteBG.addActionListener(
    			new ActionListener(){
    				public void actionPerformed(ActionEvent e){
    					textArea.setBackground(Color.white);
    				}
    			});
    	
    	 
    	fontItem.addActionListener(
      			new ActionListener(){
      				public void actionPerformed(ActionEvent e){
      					textArea.setFont(JFontChooser.showDialog(null,"Set the Font"));
      				}
      			});
    	resetItem.addActionListener(
      			new ActionListener(){
      				public void actionPerformed(ActionEvent e){
      					textArea.setFont(Font.getFont("宋体"));	
      					textArea.setBackground(Color.white);
      					textArea.setForeground(Color.black);
      				}
      			});
    	helpItem.addActionListener(this);   	
  //The event of textArea
    	textArea.addKeyListener(
    			new KeyAdapter(){
    				public void keyTyped(KeyEvent e){
    					processTextArea();
    				}
    			});
    	
  //The event of mouse
    	textArea.addMouseListener(
    			new MouseAdapter(){
    				public void mouseReleased(MouseEvent e){
    					if(e.getButton() == MouseEvent.BUTTON3)
    						popUpMenu.show(editMenu,e.getX()-20,e.getY()+70);
    				}
    				
    				public void mouseClicked(MouseEvent e){
    					if(e.getButton() == MouseEvent.BUTTON1)
    						popUpMenu.setVisible(false);
    				}
    			});  	
    }
    public void actionPerformed(ActionEvent e){
		Object obj = e.getSource();
		if (obj == helpItem) { //菜单栏中的帮助
			//调出帮助对话框
			HelpMain helpDialog = new HelpMain(this);
			helpDialog.setVisible(true);
		}
	}
    private void openFile(){
    	if(isCurrentFileSaved()){//is the File saved?
    		open();//open the new file
    	}
    	else{
    		//display the dialog
    		int option = JOptionPane.showConfirmDialog(null,"The file has been edited,do you save it?",
    				"Save the file?",JOptionPane.YES_NO_OPTION,JOptionPane.WARNING_MESSAGE,null);
    		switch(option){
    		case JOptionPane.YES_OPTION:
    			saveFile();
    			break;
    		case JOptionPane.NO_OPTION:
    			open();
    			break;
    		}
    	}
    }
    private void open(){   	 
    	int option = fileChooser.showDialog(null,"Open");
    	
    	if(option == JFileChooser.APPROVE_OPTION){
    		try{
    			BufferedReader buf = 
    				new BufferedReader(new FileReader(
    						fileChooser.getSelectedFile()));
    			
    			//title
    			setTitle(fileChooser.getSelectedFile().toString());
       			//delete
    			textArea.setText("");
    			//stateBar
    			stateBar.setText("Not changed");
    			//changeline
    			String lineSeparator = System.getProperty("line.separator");
    			//read the file
    			String text;
    			while((text = buf.readLine()) != null){
    				textArea.append(text);
    				textArea.append(lineSeparator);
    			}
    			
    			buf.close();
    			textArea.setCaretPosition(0);//到顶端
    		}
    		catch(IOException e){
    			JOptionPane.showMessageDialog(null,e.toString(),"Open the file - Fail!",
    					JOptionPane.ERROR_MESSAGE);
    		}
    	}
    }
    private boolean isCurrentFileSaved(){
    	if(stateBar.getText().equals("Not changed")){
    		return true;
    	}
    	else{
    		return false;
    	}
    }
    private void closeFile(){
    	if(isCurrentFileSaved()){
    		dispose();
    	}
    	else{
    		int option = JOptionPane.showConfirmDialog(null,"The file has been changed,do you save it?","Do you save the file?",
    				JOptionPane.YES_NO_OPTION,JOptionPane.WARNING_MESSAGE,null
    				);
    		switch(option){
    		case JOptionPane.YES_OPTION:
    			saveFile();
    			break;
    		case JOptionPane.NO_OPTION:
    			dispose();
    		}
    	}
    }
    private void saveFile(){
    	File file = new File(getTitle());
    	
    	if(!file.exists()){
    		saveFileAs();
    	}
    	else{
    		try{
    			//打开指定的文件
    			BufferedWriter buf =new BufferedWriter(
    					new FileWriter(file));
    			//把编辑区文字写入文件
    			buf.write(textArea.getText());
    			buf.close();
    			stateBar.setText("Not changed");
    		}
    		catch(IOException e){
    			JOptionPane.showMessageDialog(null,e.toString(),"Failed！",JOptionPane.ERROR_MESSAGE);
    		}
    	}
    }
    private void saveFileAs(){
    	//display the file    	
    	    fileChooser.setDialogTitle("SaveFileAs(请务必输入文件的扩展名)");
    	    int option = fileChooser.showDialog(null,"Save");    
    	if(option == JFileChooser.APPROVE_OPTION){
    		File file = fileChooser.getSelectedFile();
    		
    		setTitle(file.toString());
    		
    		try{
    			file.createNewFile();
    			saveFile();
    		}
    		catch(IOException e){
    			JOptionPane.showMessageDialog(null,e.toString(), "Can't creat new file",JOptionPane.ERROR_MESSAGE);
    		}
    	}
    }
    private void cut(){
    	textArea.cut();
    	stateBar.setText("Changed");
    	popUpMenu.setVisible(false);
    }
    private void copy(){
    	textArea.copy();    	
    	popUpMenu.setVisible(false);
    }
    private void paste(){
    	textArea.paste();
    	stateBar.setText("Changed");
    	popUpMenu.setVisible(false);
    }
    private void changeLine(){
    	textArea.setLineWrap(true);
    	popUpMenu.setVisible(false);
    }
    private void cancleChangeLine(){
    	textArea.setLineWrap(false);
    	popUpMenu.setVisible(false);
    }
    private void alwaysOnTop(){
    	setAlwaysOnTop(true);
    	popUpMenu.setVisible(false);
    }
    private void cancleAlwaysOnTop(){
    	setAlwaysOnTop(false);
    	popUpMenu.setVisible(false);
    }
    private void processTextArea(){
    	popUpMenu.setVisible(false);
    	stateBar.setText("Changed");
    }
}