package cn.com.chengang.jface.dialog;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.ProgressMonitorDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class ProgressMonitorDialog1 {

	public static void main(String[] args) {
		new ProgressMonitorDialog1().open();
	}

	public void open() {
		final Display display = Display.getDefault();
		final Shell shell = new Shell();
		shell.setSize(500, 375);

		shell.setLayout(new RowLayout());
		Button button = new Button(shell, SWT.NONE);
		button.setText("        GO          ");
		button.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				// 創建進度條對話框的處理過程對象
				IRunnableWithProgress runnable = new IRunnableWithProgress() {
					public void run(IProgressMonitor monitor) {
						monitor.beginTask("開始執行......", 10);
						for (int i = 0; i < 10; i++) {// 循環10次，每次間隔一秒
							if (monitor.isCanceled()) // 隨時監控是否選擇了對話框的“取消”按鈕
								return;// 中斷處理
							try {
								Thread.sleep(1000);
							} catch (Throwable t) {}
							monitor.setTaskName("第" + (i + 1) + "次循環");// 提示信息
							monitor.worked(1);// 進度條前進一步
						}
						monitor.done();// 進度條前進到完成
					}
				};
				try {
					// 創建一個進度條對話框，并將runnable傳入
					// 第一個參數推薦設為true，如果設為false則處理程序會運行在UI線程里，界面將有一點停滯感。
					// 第二個參數：true＝對話框的“取消”按鈕有效
					new ProgressMonitorDialog(shell).run(true, true, runnable);
				} catch (Exception e2) {
					e2.printStackTrace();
				}
			}
		});

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

}