www.pudn.com > srmail.rar > ShowFileDialog.java

 
import java.io.File; 
import org.eclipse.jface.viewers.ComboViewer; 
import org.eclipse.swt.*; 
import org.eclipse.swt.SWT; 
import org.eclipse.swt.events.*; 
import org.eclipse.swt.layout.*; 
import org.eclipse.swt.widgets.*; 
 
public class ShowFileDialog { 
	private static final String[] FILTER_NAMES = { 
	      "OpenOffice.org Spreadsheet Files (*.sxc)", 
	      "Microsoft Excel Spreadsheet Files (*.xls)", 
	      "Comma Separated Values Files (*.csv)", "All Files (*.*)"}; 
 
	  // These filter extensions are used to filter which files are displayed. 
	  private static final String[] FILTER_EXTS = { "*.sxc", "*.xls", "*.csv", "*.*"}; 
 
	  /** 
	   * Runs the application 
	   */ 
	  public void run() { 
	    Display display = new Display(); 
	    Shell shell = new Shell(display); 
	    shell.setText("File Dialog"); 
	    createContents(shell); 
	    shell.pack(); 
	    shell.open(); 
	    while (!shell.isDisposed()) { 
	      if (!display.readAndDispatch()) { 
	        display.sleep(); 
	      } 
	    } 
	    display.dispose(); 
	  } 
	  /** 
	   * Creates the contents for the window 
	   * 
	   * @param shell the parent shell 
	   */ 
	  public void createContents(final Shell shell) { 
	    shell.setLayout(new GridLayout(5, true)); 
 
	    new Label(shell, SWT.NONE).setText("File Name:"); 
 
	    final Text fileName = new Text(shell, SWT.BORDER); 
	    GridData data = new GridData(GridData.FILL_HORIZONTAL); 
	    data.horizontalSpan = 4; 
	    fileName.setLayoutData(data); 
 
	    Button multi = new Button(shell, SWT.PUSH); 
	    multi.setText("Open Multiple..."); 
	  multi.addSelectionListener(new SelectionAdapter() { 
	    public void widgetSelected(SelectionEvent event) { 
	      // User has selected to open multiple files 
	      FileDialog dlg = new FileDialog(shell, SWT.MULTI); 
	      dlg.setFilterNames(FILTER_NAMES); 
	      dlg.setFilterExtensions(FILTER_EXTS); 
	      String fn = dlg.open(); 
	      if (fn != null) { 
	        // Append all the selected files. Since getFileNames() returns only 
	        // the names, and not the path, prepend the path, normalizing 
	        // if necessary 
	        StringBuffer buf = new StringBuffer(); 
	        String[] files = dlg.getFileNames(); 
	        for (int i = 0, n = files.length; i < n; i++) { 
	          buf.append(dlg.getFilterPath()); 
	          if (buf.charAt(buf.length()+1) != File.separatorChar) { 
	            buf.append(File.separatorChar); 
	          } 
	          buf.append(files[i]); 
	          buf.append(" "); 
	        } 
	        fileName.setText(buf.toString()); 
	      } 
	    } 
	  }); 
 
	  Button open = new Button(shell, SWT.PUSH); 
	  open.setText("Open..."); 
	  open.addSelectionListener(new SelectionAdapter() { 
	    public void widgetSelected(SelectionEvent event) { 
	      // User has selected to open a single file 
	      FileDialog dlg = new FileDialog(shell, SWT.OPEN); 
	      dlg.setFilterNames(FILTER_NAMES); 
	      dlg.setFilterExtensions(FILTER_EXTS); 
	      String fn = dlg.open(); 
	      if (fn != null) { 
	        fileName.setText(fn); 
	      } 
	    } 
	  }); 
	  Button save = new Button(shell, SWT.PUSH); 
	  save.setText("Save..."); 
	  save.addSelectionListener(new SelectionAdapter() { 
	    public void widgetSelected(SelectionEvent event) { 
	      // User has selected to save a file 
	      FileDialog dlg = new FileDialog(shell, SWT.SAVE); 
	      dlg.setFilterNames(FILTER_NAMES); 
	      dlg.setFilterExtensions(FILTER_EXTS); 
	      String fn = dlg.open(); 
	      if (fn != null) { 
	        fileName.setText(fn); 
	    	 
	      } 
	     } 
	   }); 
	  } 
 
	  /** 
	   * The application entry point 
	   * 
	   * @param args the command line arguments 
	   */ 
	  public static void main(String[] args) { 
	    new ShowFileDialog().run(); 
	  } 
 
}