javax.swing.filechooser.FileSystemView Java Examples

/** ������ݷ�ʽ */
private void createShortcut() {
	 // ��ȡϵͳ����·��
       String desktop = FileSystemView.getFileSystemView().getHomeDirectory().getAbsolutePath();
       // ����ִ���ļ�·��
       String appPath = System.getProperty("user.dir");
       File exePath = new File(appPath).getParentFile();

       JShellLink link = new JShellLink();
       link.setFolder(desktop);
       link.setName("Notebook.exe");
       link.setPath(exePath.getAbsolutePath() + File.separator + "Notebook.exe");
       // link.setArguments("form");
       link.save();
       System.out.println("======== create success ========");
}
 

public static void main(String[] args) {
    File dir = FileSystemView.getFileSystemView().getDefaultDirectory();

    printDirContent(dir);

    System.setSecurityManager(new SecurityManager());

    // The next test cases use 'dir' obtained without SecurityManager

    try {
        printDirContent(dir);

        throw new RuntimeException("Dir content was derived bypass SecurityManager");
    } catch (AccessControlException e) {
        // It's a successful situation
    }
}
 

public static void main(String[] args) {
    File dir = FileSystemView.getFileSystemView().getDefaultDirectory();

    printDirContent(dir);

    System.setSecurityManager(new SecurityManager());

    // The next test cases use 'dir' obtained without SecurityManager

    try {
        printDirContent(dir);

        throw new RuntimeException("Dir content was derived bypass SecurityManager");
    } catch (AccessControlException e) {
        // It's a successful situation
    }
}
 

public static void main(String[] args) {
    File dir = FileSystemView.getFileSystemView().getDefaultDirectory();

    printDirContent(dir);

    System.setSecurityManager(new SecurityManager());

    // The next test cases use 'dir' obtained without SecurityManager

    try {
        printDirContent(dir);

        throw new RuntimeException("Dir content was derived bypass SecurityManager");
    } catch (AccessControlException e) {
        // It's a successful situation
    }
}
 

static Image getImageSWT(File file) {
    ImageIcon systemIcon = (ImageIcon) FileSystemView.getFileSystemView().getSystemIcon(file);
    if (systemIcon == null) // Happens when file does not exist
        return null;
    java.awt.Image image = systemIcon.getImage();
    if (image instanceof BufferedImage) {
        return new Image(Display.getDefault(), convertToSWT((BufferedImage)image));
    }
    int width = image.getWidth(null);
    int height = image.getHeight(null);
    BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2d = bufferedImage.createGraphics();
    g2d.drawImage(image, 0, 0, null);
    g2d.dispose();
    return new Image(Display.getDefault(), convertToSWT(bufferedImage));
}
 

public void testNormalizeDrivesOnWindows48681 () {
    if ((Utilities.isWindows () || (Utilities.getOperatingSystem () == Utilities.OS_OS2))) {
        File[] roots = File.listRoots();
        for (int i = 0; i < roots.length; i++) {
            File file = roots[i];
            if (FileSystemView.getFileSystemView().isFloppyDrive(file) || !file.exists()) {
                continue;
            }
            File normalizedFile = FileUtil.normalizeFile(file);
            File normalizedFile2 = FileUtil.normalizeFile(new File (file, "."));
            
            assertEquals (normalizedFile.getPath(), normalizedFile2.getPath());
        }
        
    }
}
 

/**
 * Get the default documents folder of the current user.
 *
 * @return The default documents folder of the current user, or the user's
 *     home directory if a documents folder could not be determined.
 */
public static File getDocumentsFolder() {
    if (XDG.XDG_DOCUMENTS_DIR_FILE != null) {
        // Should cover most Linuxes
        return XDG.XDG_DOCUMENTS_DIR_FILE;
    }
    if (SystemUtils.isWindows()) {
        // Should cover Windows
        return FileSystemView.getFileSystemView().getDefaultDirectory();
    }
    File homeDir = new File(System.getProperty("user.home"));
    File potentialDocsDir = new File(homeDir, "Documents");
    if (potentialDocsDir.isDirectory()) {
        // Should cover Mac OS X, and possibly others we missed
        return potentialDocsDir;
    }
    return homeDir;
}
 

private String getDeviceName(final String rootPath) {
    final File f = new File(rootPath);
    final FileSystemView v = FileSystemView.getFileSystemView();
    String name = v.getSystemDisplayName(f);

    if (name != null) {
        int idx = name.lastIndexOf('(');
        if (idx != -1) {
            name = name.substring(0, idx);
        }

        name = name.trim();
        if (name.isEmpty()) {
            name = null;
        }
    }
    return name;
}
 

protected void doDirectoryChanged(final PropertyChangeEvent e) {
    getDetailsTableModel().updateColumnInfo();

    JFileChooser fc = getFileChooser();
    FileSystemView fsv = fc.getFileSystemView();

    applyEdit();
    resetEditIndex();
    ensureIndexIsVisible(0);
    File currentDirectory = fc.getCurrentDirectory();
    if (currentDirectory != null) {
        if (!readOnly) {
            getNewFolderAction().setEnabled(canWrite(currentDirectory, getFileChooser()));
        }
        fileChooserUIAccessor.getChangeToParentDirectoryAction().setEnabled(!fsv.isRoot(currentDirectory));
    }
    if (list != null) {
        list.clearSelection();
    }
}
 

public static void main(String[] args) {
    File dir = FileSystemView.getFileSystemView().getDefaultDirectory();

    printDirContent(dir);

    System.setSecurityManager(new SecurityManager());

    // The next test cases use 'dir' obtained without SecurityManager

    try {
        printDirContent(dir);

        throw new RuntimeException("Dir content was derived bypass SecurityManager");
    } catch (AccessControlException e) {
        // It's a successful situation
    }
}
 

public static void main(String[] args) {
    File dir = FileSystemView.getFileSystemView().getDefaultDirectory();

    printDirContent(dir);

    System.setSecurityManager(new SecurityManager());

    // The next test cases use 'dir' obtained without SecurityManager

    try {
        printDirContent(dir);

        throw new RuntimeException("Dir content was derived bypass SecurityManager");
    } catch (AccessControlException e) {
        // It's a successful situation
    }
}
 

public static void main(String[] args) {
    File dir = FileSystemView.getFileSystemView().getDefaultDirectory();

    printDirContent(dir);

    System.setSecurityManager(new SecurityManager());

    // The next test cases use 'dir' obtained without SecurityManager

    try {
        printDirContent(dir);

        throw new RuntimeException("Dir content was derived bypass SecurityManager");
    } catch (AccessControlException e) {
        // It's a successful situation
    }
}
 

protected void doDirectoryChanged(final PropertyChangeEvent e) {
    JFileChooser fc = getFileChooser();
    FileSystemView fsv = fc.getFileSystemView();

    clearIconCache();
    File currentDirectory = fc.getCurrentDirectory();
    if (currentDirectory != null) {
        directoryComboBoxModel.addItem(currentDirectory);

        if (fc.isDirectorySelectionEnabled() && !fc.isFileSelectionEnabled()) {
            if (fsv.isFileSystem(currentDirectory)) {
                setFileName(currentDirectory.getPath());
            } else {
                setFileName(null);
            }
        }
    }
}
 

/**
 * Figure out where the Raccoon homedir is
 * 
 * @return the top level raccoon folder
 */
private static File whereami() {
	// Does the user want the Raccoon dir to be in a custom place?
	String tmp = System.getProperty(HOMEDIRSYSPROP, null);
	if (tmp == null) {
		// Nope!
		return new File(FileSystemView.getFileSystemView().getDefaultDirectory(),
				"Raccoon");
	}

	// User wants a custom directory, check if suitable.
	File f = new File(tmp);
	if (f.exists() && !f.isDirectory()) {
		return new File(FileSystemView.getFileSystemView().getDefaultDirectory(),
				"Raccoon");
	}
	else {
		return f;
	}
}
 

/**
 * Sets the selected path based of the specified file. If this file is
 * either <code>null</code> or not a directory, the home directory is
 * selected.
 *
 * @param dir Points to a directory to be selected.
 */
public void setPath(File dir) {
    final FileSystemView fsv = FileSystemView.getFileSystemView();

    if ((dir == null) || !dir.isDirectory()) {
        dir = fsv.getHomeDirectory();
    }

    ArrayList<BreadcrumbItem<File>> path = new ArrayList<>();
    File parent = dir;
    BreadcrumbItem<File> bci = new BreadcrumbItem<>(fsv.getSystemDisplayName(dir), dir);
    bci.setIcon(fsv.getSystemIcon(dir));
    path.add(bci);
    while (true) {
        parent = fsv.getParentDirectory(parent);
        if (parent == null) {
            break;
        }
        bci = new BreadcrumbItem<>(fsv.getSystemDisplayName(parent), parent);
        bci.setIcon(fsv.getSystemIcon(parent));
        path.add(bci);
    }
    Collections.reverse(path);
    this.setPath(path);
}
 

/**
   * 实时磁盘监控
 * @param request
 * @param response
 * @return
 */
@GetMapping("/queryDiskInfo")
public Result<List<Map<String,Object>>> queryDiskInfo(HttpServletRequest request, HttpServletResponse response){
	Result<List<Map<String,Object>>> res = new Result<>();
	try {
		// 当前文件系统类
        FileSystemView fsv = FileSystemView.getFileSystemView();
        // 列出所有windows 磁盘
        File[] fs = File.listRoots();
        log.info("查询磁盘信息:"+fs.length+"个");
        List<Map<String,Object>> list = new ArrayList<>();
        
        for (int i = 0; i < fs.length; i++) {
        	if(fs[i].getTotalSpace()==0) {
        		continue;
        	}
        	Map<String,Object> map = new HashMap<>();
        	map.put("name", fsv.getSystemDisplayName(fs[i]));
        	map.put("max", fs[i].getTotalSpace());
        	map.put("rest", fs[i].getFreeSpace());
        	map.put("restPPT", fs[i].getFreeSpace()*100/fs[i].getTotalSpace());
        	list.add(map);
        	log.info(map.toString());
        }
        res.setResult(list);
        res.success("查询成功");
	} catch (Exception e) {
		res.error500("查询失败"+e.getMessage());
	}
	return res;
}
 

public static void main(String[] args) {
    System.setSecurityManager(new SecurityManager());

    // The next line of code forces FileSystemView to request data from Win32ShellFolder2,
    // what causes an exception if a security manager installed (see the bug 6570445 description)
    FileSystemView.getFileSystemView().getRoots();

    System.out.println("Passed.");
}
 

/**
   * 实时磁盘监控
 * @param request
 * @param response
 * @return
 */
@GetMapping("/queryDiskInfo")
public Result<List<Map<String,Object>>> queryDiskInfo(HttpServletRequest request, HttpServletResponse response){
	Result<List<Map<String,Object>>> res = new Result<>();
	try {
		// 当前文件系统类
        FileSystemView fsv = FileSystemView.getFileSystemView();
        // 列出所有windows 磁盘
        File[] fs = File.listRoots();
        log.info("查询磁盘信息:"+fs.length+"个");
        List<Map<String,Object>> list = new ArrayList<>();
        
        for (int i = 0; i < fs.length; i++) {
        	if(fs[i].getTotalSpace()==0) {
        		continue;
        	}
        	Map<String,Object> map = new HashMap<>();
        	map.put("name", fsv.getSystemDisplayName(fs[i]));
        	map.put("max", fs[i].getTotalSpace());
        	map.put("rest", fs[i].getFreeSpace());
        	map.put("restPPT", fs[i].getFreeSpace()*100/fs[i].getTotalSpace());
        	list.add(map);
        	log.info(map.toString());
        }
        res.setResult(list);
        res.success("查询成功");
	} catch (Exception e) {
		res.error500("查询失败"+e.getMessage());
	}
	return res;
}
 

/**
 * The user directory.  On Mac and Linux this should be the user home directory.  On Windows platforms this
 * is the "My Documents" directory.
 */
public static synchronized File getUserDirectory() {
    if (USER_DIRECTORY == null) {
        System.out.print("Fetching user directory... ");
        USER_DIRECTORY = FileSystemView.getFileSystemView().getDefaultDirectory();
        //Mostly for testing, in some environments USER_DIRECTORY can be null
        if (USER_DIRECTORY == null) {
            USER_DIRECTORY = getUserHome();
        }
    }
    return USER_DIRECTORY;
}
 

/**
 * @功能：获取磁盘信息
 * @param request
 * @param response
 * @return
 */
@GetMapping("/queryDiskInfo")
public Result<List<Map<String,Object>>> queryDiskInfo(HttpServletRequest request, HttpServletResponse response){
	Result<List<Map<String,Object>>> res = new Result<>();
	try {
		// 当前文件系统类
        FileSystemView fsv = FileSystemView.getFileSystemView();
        // 列出所有windows 磁盘
        File[] fs = File.listRoots();
        log.info("查询磁盘信息:"+fs.length+"个");
        List<Map<String,Object>> list = new ArrayList<>();
        
        for (int i = 0; i < fs.length; i++) {
        	if(fs[i].getTotalSpace()==0) {
        		continue;
        	}
        	Map<String,Object> map = new HashMap<>();
        	map.put("name", fsv.getSystemDisplayName(fs[i]));
        	map.put("max", fs[i].getTotalSpace());
        	map.put("rest", fs[i].getFreeSpace());
        	map.put("restPPT", (fs[i].getTotalSpace()-fs[i].getFreeSpace())*100/fs[i].getTotalSpace());
        	list.add(map);
        	log.info(map.toString());
        }
        res.setResult(list);
        res.success("查询成功");
	} catch (Exception e) {
		res.error500("查询失败"+e.getMessage());
	}
	return res;
}
 

private static void checkDefaultDirectory() {
    if (System.getSecurityManager() == null) {
        throw new RuntimeException("Security manager is not set!");
    }

    File defaultDirectory = FileSystemView.getFileSystemView().
            getDefaultDirectory();
    if (defaultDirectory != null) {
        throw new RuntimeException("File system default directory is null!");
    }
}
 

public GedEntry(File f,Class<T> classe) throws IOException {
	this.classe=classe;
	setName(Files.getNameWithoutExtension(f.getName()));
	setExt(Files.getFileExtension(f.getName()));
	setContent(Files.toByteArray(f));
	setIsImage(ImageTools.isImage(f));
	setIcon(FileSystemView.getFileSystemView().getSystemIcon(f));
	setId(FileTools.checksum(f));
}
 

protected void loadChildren() {
  FileSystemView fsv = (FileSystemView)getUserObject();
  File[] roots = fsv.getRoots();
  if (roots != null) {
    Arrays.sort(roots);
    for (int i = 0, c = roots.length; i < c; i++) {
      add(new FileTreeNode(roots[i]));
    }
  }
}
 

private static void checkDefaultDirectory() {
    if (System.getSecurityManager() == null) {
        throw new RuntimeException("Security manager is not set!");
    }

    File defaultDirectory = FileSystemView.getFileSystemView().
            getDefaultDirectory();
    if (defaultDirectory != null) {
        throw new RuntimeException("File system default directory is null!");
    }
}
 

private static void checkDefaultDirectory() {
    if (System.getSecurityManager() == null) {
        throw new RuntimeException("Security manager is not set!");
    }

    File defaultDirectory = FileSystemView.getFileSystemView().
            getDefaultDirectory();
    if (defaultDirectory != null) {
        throw new RuntimeException("File system default directory is null!");
    }
}
 

/**
 * Preview a NinePatcg pictrure with Draw9Patch4Coffee tool.
 * 
 * @param is must not null
 * @param fileName must not null, just used for file name, suffix must be ".9.png"
 */
public static void previewNinePatchWithDraw9PatchTool(InputStream is, String fileName)
{
	MainFrame frame = new MainFrame(is, 
			// this file path just used for Draw9Patch4Coffee, 
			// and dosn't really read data from it, see Draw9Patch4Coffee API doc
			FileSystemView.getFileSystemView().getDefaultDirectory()
					.getAbsolutePath()+File.separator+fileName);
	frame.setDefaultCloseOperation(MainFrame.DISPOSE_ON_CLOSE);
	frame.setSize(700,500);
	frame.setLocationRelativeTo(null);
	frame.setVisible(true);
}
 

public SnapFileChooser(File currentDirectory, FileSystemView fsv) {
    super(currentDirectory, fsv);

    snapPreferences = Config.instance("snap").preferences();
    resizeHandler = new ResizeHandler();
    windowCloseHandler = new CloseHandler();
    init();
}
 

@Override
public Component getListCellRendererComponent(JList list, Object value, int index,
        boolean isSelected, boolean cellHasFocus) {
    File file = (File) value;
    this.setIcon(FileSystemView.getFileSystemView().getSystemIcon(file));
    this.setText(FileSystemView.getFileSystemView().getSystemDisplayName(file));
    return this;
}
 

public Component getListCellRendererComponent(JList list, Object value, int index,
        boolean isSelected, boolean cellHasFocus) {
    File file = (File) value;
    this.setIcon(FileSystemView.getFileSystemView().getSystemIcon(file));
    this.setText(FileSystemView.getFileSystemView().getSystemDisplayName(file));
    return this;
}
 

private static File getWindowsHomeFile() {
    File desktop = getWindowsDesktopFile();
    if (desktop == null) {
        return null;
    }
    IPath homePath = new Path(HOME_DIR);
    String homeFilename = homePath.lastSegment();
    File[] files = FileSystemView.getFileSystemView().getFiles(desktop, false);
    for (File file : files) {
        if (file.getName().equals(homeFilename)) {
            return file;
        }
    }
    return null;
}