org.eclipse.swt.widgets.FileDialog#setFilterIndex ( )源码实例Demo

protected void selectFile ()
{
    final FileDialog dlg = new FileDialog ( getShell (), SWT.OPEN );
    dlg.setFilterExtensions ( new String[] { "*.oscar", "*.json", "*.*" } ); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
    dlg.setFilterNames ( new String[] { Messages.LocalDataPage_OSCARFilterDescription, Messages.LocalDataPage_JSONFilterDescription, Messages.LocalDataPage_AllFilterDescription } );

    if ( this.fileName.getText ().length () > 0 )
    {
        dlg.setFileName ( this.fileName.getText () );
    }
    dlg.setFilterIndex ( 0 );

    final String file = dlg.open ();
    if ( file != null )
    {
        this.fileName.setText ( file );
        loadFile ();
    }
}
 

protected void handleLoadLocal ()
{
    final FileDialog dlg = new FileDialog ( getShell (), SWT.OPEN );
    dlg.setFilterExtensions ( new String[] { "*.oscar", "*.json", "*.*" } ); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
    dlg.setFilterNames ( new String[] { Messages.LocalDataPage_OSCARFilterDescription, Messages.LocalDataPage_JSONFilterDescription, Messages.LocalDataPage_AllFilterDescription } );

    final String selectedFileName = getWizard ().getDialogSettings ().get ( "localDataPage.file" ); //$NON-NLS-1$

    if ( selectedFileName != null && selectedFileName.length () > 0 )
    {
        dlg.setFileName ( selectedFileName );
    }
    dlg.setFilterIndex ( 0 );

    final String file = dlg.open ();
    if ( file != null )
    {
        getWizard ().getDialogSettings ().put ( "localDataPage.file", file ); //$NON-NLS-1$
        loadFromLocalFile ( file );
    }
}
 

protected void handleSelectFile ()
{
    final FileDialog dlg = new FileDialog ( getShell (), SWT.SAVE );
    dlg.setFilterExtensions ( new String[] { "*.oscar", "*.*" } ); //$NON-NLS-1$ //$NON-NLS-2$ 
    dlg.setFilterNames ( new String[] { Messages.FileNamePage_OSCARFileType, Messages.FileNamePage_AllTypes } );

    if ( this.fileName.getText ().length () > 0 )
    {
        dlg.setFileName ( this.fileName.getText () );
    }
    dlg.setFilterIndex ( 0 );

    final String file = dlg.open ();
    if ( file != null )
    {
        this.fileName.setText ( file );
        getWizard ().getDialogSettings ().put ( "fileNamePage.file", file ); //$NON-NLS-1$
    }
}
 

/**
 * Open a file.
 */
protected void openFile() {
	FileDialog fileDialog = new FileDialog(shell, SWT.OPEN);
	FilenameFilter[] fileFilters = Disk.getFilenameFilters();
	String[] names = new String[fileFilters.length];
	String[] extensions = new String[fileFilters.length];
	for (int i=0; i<fileFilters.length; i++) {
		names[i] = fileFilters[i].getNames();
		extensions[i] = makeExtensionCaseInsensitive(fileFilters[i].getExtensions());
	}
	fileDialog.setFilterNames(names);
	fileDialog.setFilterExtensions(extensions);
	fileDialog.setFilterPath(userPreferences.getDiskImageDirectory());
	fileDialog.setFilterIndex(0);
	String fullpath = fileDialog.open();
	
	if (fullpath != null) {
		userPreferences.setDiskImageDirectory(fileDialog.getFilterPath());
		try {
			Disk disk = new Disk(fullpath);
			FormattedDisk[] formattedDisks = disk.getFormattedDisks();
			DiskWindow window = new DiskWindow(shell, formattedDisks, imageManager);
			window.open();
		} catch (DiskUnrecognizedException e) {
			showUnrecognizedDiskFormatMessage(fullpath);
		} catch (Exception ignored) {
			ignored.printStackTrace();
			showUnexpectedErrorMessage(fullpath);
		}
	}
}
 

/**
 * Shows a file open dialog.
 *
 * @param shell
 * @param filter
 * @return
 */
public String showOpenFileDialog(final Shell shell, String filter) {
    final FileDialog dialog = new FileDialog(shell, SWT.OPEN);
    dialog.setFilterExtensions(new String[] { filter });
    dialog.setFilterIndex(0);
    String file = dialog.open();
    if (file == null) {
        return null;
    } else if (!new File(file).exists()) {
        showInfoDialog(shell, Resources.getMessage("MainWindow.5"), Resources.getMessage("MainWindow.14")); //$NON-NLS-1$ //$NON-NLS-2$
        return null;
    } else {
        return file;
    }
}
 

public void run(LogViewer view, Shell shell) {

		fileOpened = false;

		// log file type
		String typeStr = null;
		String nameStr = null;
		type = LogFileType.LOGFILE_SYSTEM_FILE;

		/*
		String conStr = "Console: ";
	    LogFileTypeDialog typeDialog = new LogFileTypeDialog(shell);
	    typeDialog.setBlockOnOpen(true);
		int retval = typeDialog.open();
		if(retval == EncodingDialog.OK) {
			typeStr = typeDialog.getValue();
			if (typeStr.indexOf(conStr) == 0) {
				type = LogFileType.LOGFILE_ECLIPSE_CONSOLE;
				typeStr = typeStr.substring(conStr.length());
			}
		} else {
			return;
		}
		*/

		if (type == LogFileType.LOGFILE_SYSTEM_FILE) {
		    // load filter extensions
			String filterExtensions = LogViewerPlugin.getDefault().getPreferenceStore().getString(ILogViewerConstants.PREF_FILTER_EXTENSIONS);
			// opening file(s) in log view
		    FileDialog dialog = new FileDialog(shell,SWT.OPEN|SWT.MULTI);
		    String[] extensions = {
		    		filterExtensions,
		    		"*.*"
		    };

	    	//
		    if (parentPath == null) {
		    	Object[] file_list = FileHistoryTracker.getInstance().getFiles().toArray();
		    	if (file_list.length >= 1)
		    	{
		    		HistoryFile history_file = (HistoryFile)(file_list[file_list.length - 1]);
		    		File file = new File(history_file.getPath());
		    		if (file.isDirectory()) {
		    			parentPath = file.toString();
		    		} else {
		    			parentPath = file.getParent();
		    		}
		    	}
		    }
		    dialog.setFilterPath(parentPath);
		    dialog.setFilterExtensions(extensions);
		    dialog.setFilterIndex(0);
		    String path = dialog.open();
		    if (path != null) {
		    	File tempFile = new File(path);
		    	path = tempFile.isDirectory() ? tempFile.toString() : tempFile.getParent();
		    	String selectedFiles[] = dialog.getFileNames();
		    	for (int i=0;i<selectedFiles.length;i++) {
		    		String fileStr = path.endsWith(File.separator) ? path + selectedFiles[i] : path + File.separator + selectedFiles[i];
		    		if (!view.checkAndOpenFile(type,fileStr, null, true))
		    	        fileOpened = true;
		    	}
		    }
		} else if (type == LogFileType.LOGFILE_ECLIPSE_CONSOLE) {
    		if (!view.checkAndOpenFile(type, typeStr, nameStr, true))
    	        fileOpened = true;
		}
	}
 

/**
 * Shows a file save dialog.
 *
 * @param shell
 * @param filter
 * @return
 */
public String showSaveFileDialog(final Shell shell, String filter) {
    final FileDialog dialog = new FileDialog(shell, SWT.SAVE);
    dialog.setFilterExtensions(new String[] { filter });
    dialog.setFilterIndex(0);
    return dialog.open();
}