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>
 

发表于 @ 2009年04月16日　10:35:00 | 评论( 0 ) | 编辑| 举报| 收藏

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本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/guijava/archive/2009/04/16/4083331.aspx
本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/guijava/archive/2009/04/16/4083331.aspx