SWT添加键盘事件

  sendText.addKeyListener(new KeyListener(){
   public void keyPressed(KeyEvent e) {
    if(e.keyCode == SWT.CR){
     //让按键原有的功能失效
     e.doit = false;
     //执行你自己的事件
     MessageBox box = new MessageBox(new Shell(), SWT.ICON_INFORMATION | SWT.OK);
        box.setText("提示信息");
        box.setMessage("按回车键了");
        box.open();
    }
   }
   public void keyReleased(KeyEvent e) {}
   });

 package  znewtest;

 import  java.net.InetSocketAddress;
 import  java.text.DateFormat;
 import  java.text.SimpleDateFormat;
 import  java.util.Date;

 import  org.eclipse.swt.SWT;
 import  org.eclipse.swt.events.KeyEvent;
 import  org.eclipse.swt.events.KeyListener;
 import  org.eclipse.swt.events.SelectionEvent;
 import  org.eclipse.swt.events.SelectionListener;
 import  org.eclipse.swt.layout.GridData;
 import  org.eclipse.swt.layout.GridLayout;
 import  org.eclipse.swt.widgets.Button;
 import  org.eclipse.swt.widgets.Composite;
 import  org.eclipse.swt.widgets.Display;
 import  org.eclipse.swt.widgets.MessageBox;
 import  org.eclipse.swt.widgets.Shell;
 import  org.eclipse.swt.widgets.Text;

 public   class  keyWindow {
     Display display;
     Shell shell;
     GridLayout gridLayout;
     GridData layoutData;
     Composite composite;
     Text sendText;
     Text mesText;
     DateFormat formatter = new  SimpleDateFormat( "HH:mm:ss" );
     public  keyWindow(){
         display = Display.getDefault();
         shell = new  Shell(display);
         //初始化shell
         initShell();

         layoutData = new  GridData();
         layoutData.widthHint = 260 ;
         layoutData.heightHint = 200 ;
         mesText = new  Text(shell, SWT.MULTI | SWT.WRAP
                 |SWT.V_SCROLL |SWT.BORDER);
         mesText.setLayoutData(layoutData);

         layoutData = new  GridData();
         layoutData.widthHint = 260 ;
         layoutData.heightHint = 60 ;
         sendText = new  Text(shell, SWT.MULTI | SWT.WRAP
                 |SWT.V_SCROLL |SWT.BORDER);
         sendText.setLayoutData(layoutData);
         sendText.setFocus();

         sendText.addKeyListener(new  KeyListener(){
             public   void  keyPressed(KeyEvent e) {
                 if (e.keyCode == SWT.CR){
                     //让按键原有的功能失效
                     e.doit = false ;
                     //执行你自己的事件
                     MessageBox box = new  MessageBox( new  Shell(), SWT.ICON_INFORMATION | SWT.OK);
                     box.setText("提示信息" );
                     box.setMessage("按回车键了" );
                     box.open();
                 }
             }
             public   void  keyReleased(KeyEvent e) {}
             });
     }

     public   void  open() {
         shell.open();
         while  (!shell.isDisposed()) {
             if  (!display.readAndDispatch()) {
                 display.sleep();
             }
         }
     }

     /**
      * 设置窗口的标题、位置、大小、图标
      * @return Shell
      */
     public  Shell initShell(){
         shell.setText("交谈" );
         shell.setSize(400 ,  350 );
         shell.setLayout(new  GridLayout());
         return  shell;
     }
     /**
      * 向聊天区域添加信息
      * @param msg
      */
     public   void  addString(String mes)
     {
         mesText.setText(mes + "/n"  + mesText.getText());
     }

     public   static   void  main(String[] args) {
         new  keyWindow().open();
     }
 }

 

完整示例

 

Color red = display.getSystemColor(SWT.COLOR_RED);
Font font = display.getSystemFont();
control.setFont(font)

Style

Description

SWT.WRAP	Wrap the text to fit the visible area
SWT.LEFT	Left-align the label
SWT.CENTER	Center-align the label
SWT.RIGHT	Right-align the label
SWT.SEPARATOR	Draw a separator instead of text or an image
SWT.HORIZONTAL	Draw the separator horizontally
SWT.VERTICAL	Draw the separator vertically
SWT.SHADOW_IN	Draw the separator with a "shadow in" effect
SWT.SHADOW_OUT`	Draw the separator

Separators

键盘事件类型

SWT.KeyDown	A key was pressed
SWT.KeyUp	A key was released

 

KeyEvent

KeyListener (and KeyAdapter)

keyPressed(KeyEvent) keyReleased(KeyEvent)

关于event中的character特殊键值

SWT.BS	退回 ('/b')
SWT.CR	回车 ('/r')
SWT.DEL	删除 ('/u007F')
SWT.ESC	ESC ('/u001B')
SWT.LF	换行 ('/n')
SWT.TAB	TAB跳格 ('/t')

 

SWT.CONTROL	<Ctrl>同 SWT.CTRL
SWT.SHIFT	<Shift>
SWT.ALT	<Alt>