filesaveasaction.java

来自「mywork是rcp开发的很好的例子」· Java 代码 · 共 61 行

package net.sf.freenote.action;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

import net.sf.freenote.FreeNoteConstants;
import net.sf.freenote.model.FileShape;
import net.sf.freenote.parts.ShapeEditPart;
import net.sf.util.StringUtil;
import net.sf.util.TousleUtil;

import org.eclipse.gef.ui.actions.SelectionAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.ui.IWorkbenchPart;
/**
 * 将文件形体的文件另存出来
 * @author levin
 * @since 2008-1-20 下午09:42:57
 */
public class FileSaveAsAction extends SelectionAction {

	public FileSaveAsAction(IWorkbenchPart part) {
		super(part);
		setText("另存文件...");
		setToolTipText("将形体中的文件另存出来");
		setId(FreeNoteConstants.FILE_SAVEAS);
	}

	@Override
	protected boolean calculateEnabled() {
		if (getSelectedObjects().size() == 1 && (getSelectedObjects().get(0) instanceof ShapeEditPart)) {
			ShapeEditPart part = (ShapeEditPart) getSelectedObjects().get(0);
			if(part.getModel() instanceof FileShape && StringUtil.isNotNull(((FileShape)part.getModel()).getFilePath()))
				return true;
		}
		return false;
	}

	@Override
	public void run() {
		FileShape shape =(FileShape) ((ShapeEditPart) getSelectedObjects().get(0)).getModel();
		final FileDialog fd=new FileDialog(getWorkbenchPart().getSite().getShell(),SWT.SAVE);
		File f= new File(shape.getFilePath());
		fd.setFileName(f.getName());
		String fname=fd.open();
		if(fname != null){
			try {
				//提示是否覆盖
				if(! new File(fname).exists() || MessageDialog.openConfirm(fd.getParent(),"文件覆盖确认","文件已经存在，是否覆盖?")){
					TousleUtil.copyIntput2Output(new FileInputStream(f), new FileOutputStream(fname));						
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}
}