sendmessagedialog.java

针对IBM的消息中间件MQ编写的程序

package com.face;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.RowData;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

/**
 * 自定义对话框类
 * @param parent
 * @return
 */
public class SendMessageDialog extends Dialog {
	
	private String textValue; //文本框内容
	private Text writeText; //文本实例
	
	/**
	 * 构造函数
	 * @param parentShell
	 */
	public SendMessageDialog(Shell parentShell) {
		super(parentShell);
	}
	
	/**
	 * 构建Dialog中的界面内容
	 * @param parent
	 * @return
	 */
	protected Control createDialogArea(Composite parent) {
		Composite topComp = new Composite(parent, SWT.NONE);
		topComp.setLayout(new RowLayout());
		
		new Label(topComp, SWT.NONE).setText("请输入:");
		writeText = new Text(topComp, SWT.BORDER|SWT.V_SCROLL|SWT.WRAP);
		writeText.setLayoutData(new RowData(350, 200));
		writeText.setText(textValue == null ?"" :textValue);
		return topComp;		
	}
	
	/**
	 * 可以改变窗口的默认样式
	 */
	protected int getShellStyle() {
		return super.getShellStyle()|SWT.MAX;
	}
	
	/**
	 * 取得文本内容
	 * @return String 文本内容
	 */
	protected String getTextValue() {
		return this.textValue;
	}
	
	/**
	 * 设置文本内容
	 * @param str 文本内容
	 */
	protected void setTextValue(String str) {
		this.textValue = str;
	}
	
	/**
	 * 单击确定按钮
	 */
	protected void buttonPressed(int buttonId) {
		//如果点了OK按钮，则将值取回变量
		if(buttonId == IDialogConstants.OK_ID) {
			textValue = writeText.getText();
		}
		super.buttonPressed(buttonId);
	}
}