filechooseaction.java

来自「mywork是rcp开发的很好的例子」· Java 代码 · 共 55 行

package net.sf.freenote.action;

import net.sf.freenote.FreeNoteConstants;
import net.sf.freenote.model.FileShape;
import net.sf.freenote.model.ImageFileShape;
import net.sf.freenote.parts.ShapeEditPart;

import org.eclipse.gef.ui.actions.SelectionAction;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.ui.IWorkbenchPart;

/**
 * 为文件形体设置文件
 * @author levin
 * @since 2008-1-20 下午09:42:37
 */
public class FileChooseAction extends SelectionAction {

	public FileChooseAction(IWorkbenchPart part) {
		super(part);
		setText("选择文件...");
		setToolTipText("更换文件或图片");
		setId(FreeNoteConstants.FILE_CHOOSE);
	}

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

	@Override
	public void run() {
		FileShape shape =(FileShape) ((ShapeEditPart) getSelectedObjects().get(0)).getModel();
        FileDialog fd = new FileDialog(getWorkbenchPart().getSite().getShell(), SWT.OPEN|SWT.SINGLE);
        fd.setText("请选择一个文件");
		if(shape instanceof ImageFileShape){
			String suffixs="*.bmp;*.jpg;*.jpeg;*.png;*.ico;*.tif;*.gif";
			fd.setFilterExtensions(new String[]{suffixs,"*.*"});
			fd.setFilterNames(new String[]{"图片文件("+suffixs+")","所有文件(*.*)"});
		}
        fd.open();
        String fname = fd.getFileName();
        if (fname.equals(""))
            return;
        fname = fd.getFilterPath() + "/" + fname;
        shape.setFilePath(fname);
	}
}