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Swt/Jface进度条

处理长时间的任务的时候常需要进度条显示,有几种实现方式
1,普通的进度条
import java.lang.reflect.InvocationTargetException;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.ProgressMonitorDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;


public class TestProgress {
    
static boolean stopflg = false;
    
/**
     * Launch the application
     * 
@param args
     
*/

    
public static void main(String[] args) throws Exception{
        
final Display display = Display.getDefault();
        
final Shell shell = new Shell();
        shell.setSize(
500375);
        shell.setText(
"SWT Application");
        
        
//
        IRunnableWithProgress runnable = new IRunnableWithProgress(){
            
public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
                monitor.beginTask(
"generate"30);
                
for(int i=0;i<100;i++){
                    
if(monitor.isCanceled()){
                        
return;
                    }

                    monitor.worked(
1);
                    Thread.sleep(
50);
                }

                
                monitor.done();
            }

        }
;
        
new ProgressMonitorDialog(shell).run(truetrue, runnable);
        shell.open();
        shell.layout();
        
while (!shell.isDisposed()) {
            
if (!display.readAndDispatch())
                display.sleep();
        }

    }


}

2,反复循环的进度条
import java.lang.reflect.InvocationTargetException;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.ProgressMonitorDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;


public class TestProgress {
    
static boolean stopflg = false;
    
/**
     * Launch the application
     * 
@param args
     
*/

    
public static void main(String[] args) throws Exception{
        
final Display display = Display.getDefault();
        
final Shell shell = new Shell();
        shell.setSize(
500375);
        shell.setText(
"SWT Application");
        
        
//
        IRunnableWithProgress runnable = new IRunnableWithProgress(){
            
public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
                monitor.beginTask(
"generate"30);
                
int i=0;
                
while(true){
                    
if(stopflg){
                        
break;
                    }

                    i
++;
                    
if(i==30){
                        i
=0;
                        monitor.beginTask(
"generate"30);
                    }

                    monitor.worked(
1);
                    Thread.sleep(
100);
                }

                monitor.done();
            }

        }
;
        
new ProgressMonitorDialog(shell).run(truetrue, runnable);
        shell.open();
        shell.layout();
        
while (!shell.isDisposed()) {
            
if (!display.readAndDispatch())
                display.sleep();
        }

    }


}

3,rcp中后台任务的进度条
使用Job建立后台任务,只需要设置job.setUser(true)进度条就出现了,和上边一样,进度条需要自己来控制进度。如果做一个cool的进度条,就看你如何让进度条显示出实际的任务进程。

posted on 2007-08-10 09:59 dreamstone 阅读(4823) 评论(0)  编辑  收藏 所属分类: SWT和插件开发


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