tim/prune/load/AudioLoader.java

   1 package tim.prune.load;
   2
   3 import java.io.File;
   4 import java.util.TreeSet;
   5 import javax.swing.JFileChooser;
   6
   7 import tim.prune.App;
   8 import tim.prune.GenericFunction;
   9 import tim.prune.I18nManager;
  10 import tim.prune.UpdateMessageBroker;
  11 import tim.prune.config.Config;
  12 import tim.prune.data.AudioClip;
  13 import tim.prune.undo.UndoLoadAudios;
  14
  15 /**
  16  * Class to manage the loading of audio clips
  17  */
  18 public class AudioLoader extends GenericFunction
  19 {
  20         private JFileChooser _fileChooser = null;
  21         private GenericFileFilter _fileFilter = null;
  22         private TreeSet<AudioClip> _fileList = null;
  23
  24
  25         /**
  26          * Constructor
  27          * @param inApp Application object to inform of data load
  28          */
  29         public AudioLoader(App inApp)
  30         {
  31                 super(inApp);
  32                 _fileFilter = new AudioFileFilter();
  33         }
  34
  35         /** Get the name key */
  36         public String getNameKey() {
  37                 return "function.loadaudio";
  38         }
  39
  40         /**
  41          * Open the GUI to select options and start the load
  42          */
  43         public void begin()
  44         {
  45                 // Create file chooser if necessary
  46                 if (_fileChooser == null)
  47                 {
  48                         _fileChooser = new JFileChooser();
  49                         _fileChooser.setMultiSelectionEnabled(true);
  50                         _fileChooser.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
  51                         _fileChooser.setFileFilter(_fileFilter);
  52                         _fileChooser.setDialogTitle(I18nManager.getText(getNameKey()));
  53                         // start from directory in config if already set by other operations
  54                         String configDir = Config.getConfigString(Config.KEY_PHOTO_DIR);
  55                         if (configDir == null) {configDir = Config.getConfigString(Config.KEY_TRACK_DIR);}
  56                         if (configDir != null) {_fileChooser.setCurrentDirectory(new File(configDir));}
  57                 }
  58                 // Show file dialog to choose file / directory(ies)
  59                 if (_fileChooser.showOpenDialog(_parentFrame) == JFileChooser.APPROVE_OPTION)
  60                 {
  61                         _fileList = new TreeSet<AudioClip>(new MediaSorter());
  62                         processFileList(_fileChooser.getSelectedFiles());
  63                         final int numFiles = _fileList.size();
  64                         if (numFiles == 0) {
  65                                 _app.showErrorMessage(getNameKey(), "error.audioload.nofilesfound");
  66                         }
  67                         else
  68                         {
  69                                 // Construct undo object
  70                                 UndoLoadAudios undo = new UndoLoadAudios(numFiles);
  71                                 _app.getTrackInfo().addAudios(_fileList);
  72                                 _app.completeFunction(undo, I18nManager.getText("confirm.audioload"));
  73                                 UpdateMessageBroker.informSubscribers();
  74                         }
  75                 }
  76         }
  77
  78         /**
  79          * Process an array of File objects to load
  80          * @param inFiles array of selected Files
  81          */
  82         private void processFileList(File[] inFiles)
  83         {
  84                 for (File file : inFiles)
  85                 {
  86                         if (file.exists() && file.canRead())
  87                         {
  88                                 if (file.isFile()) {
  89                                         if (_fileFilter.accept(file)) {
  90                                                 _fileList.add(new AudioClip(file));
  91                                         }
  92                                 }
  93                                 else if (file.isDirectory()) {
  94                                         processFileList(file.listFiles());
  95                                 }
  96                         }
  97                 }
  98         }
  99 }