src/main/java/jp/naist/se/stigmata/ui/swing/FileIOManager.java

   1 package jp.naist.se.stigmata.ui.swing;\r
   2 \r
   3 /*\r
   4  * $Id$\r
   5  */\r
   6 \r
   7 import java.awt.Component;\r
   8 import java.io.File;\r
   9 import java.text.MessageFormat;\r
  10 \r
  11 import javax.swing.JFileChooser;\r
  12 import javax.swing.SwingUtilities;\r
  13 import javax.swing.filechooser.FileFilter;\r
  14 \r
  15 /**\r
  16  * \r
  17  * @author Haruaki TAMADA\r
  18  * @version $Revision$ $Date$\r
  19  */\r
  20 public class FileIOManager{\r
  21     private Component parent;\r
  22     private File currentDirectory;\r
  23 \r
  24     public FileIOManager(Component parent){\r
  25         this.parent = parent;\r
  26         currentDirectory = new File(".");\r
  27     }\r
  28 \r
  29     public File getCurrentDirectory(){\r
  30         return currentDirectory;\r
  31     }\r
  32 \r
  33     public void setCurrentDirectory(File directory) throws IllegalArgumentException{\r
  34         if(!directory.isDirectory()){\r
  35             throw new IllegalArgumentException(directory.getName() + " is not directory");\r
  36         }\r
  37         this.currentDirectory = directory;\r
  38     }\r
  39 \r
  40     public File findFile(boolean open){\r
  41         return findFile(open, new String[0], "");\r
  42     }\r
  43 \r
  44     public File[] openFiles(FileFilter[] filters, boolean multi, boolean directory){\r
  45         JFileChooser chooser = new JFileChooser(getCurrentDirectory());\r
  46         if(filters != null){\r
  47             for(int i = 0; i < filters.length; i++){\r
  48                 chooser.addChoosableFileFilter(filters[i]);\r
  49             }\r
  50         }\r
  51         chooser.setMultiSelectionEnabled(multi);\r
  52         if(directory){\r
  53             chooser.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);\r
  54         }\r
  55         else{\r
  56             chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);\r
  57         }\r
  58         int returnValue = chooser.showOpenDialog(SwingUtilities.getRootPane(parent));\r
  59         if(returnValue == JFileChooser.APPROVE_OPTION){\r
  60             setCurrentDirectory(chooser.getCurrentDirectory());\r
  61             return chooser.getSelectedFiles();\r
  62         }\r
  63         return new File[0];\r
  64     }\r
  65 \r
  66     public File findFile(boolean open, String[] exts, String desc){\r
  67         JFileChooser chooser = new JFileChooser(getCurrentDirectory());\r
  68         if(exts != null){\r
  69             MessageFormat formatter = new MessageFormat(desc);\r
  70             for(int i = 0; i < exts.length; i++){\r
  71                 chooser.addChoosableFileFilter(\r
  72                     new ExtensionFilter(exts[i], formatter.format(new Object[] { exts[i], }))\r
  73                 );\r
  74             }\r
  75         }\r
  76         int returnValue = -1;\r
  77         if(open){\r
  78             returnValue = chooser.showOpenDialog(SwingUtilities.getRootPane(parent));\r
  79         }\r
  80         else{\r
  81             returnValue = chooser.showSaveDialog(SwingUtilities.getRootPane(parent));\r
  82         }\r
  83         if(returnValue == JFileChooser.APPROVE_OPTION){\r
  84             setCurrentDirectory(chooser.getCurrentDirectory());\r
  85             File file = chooser.getSelectedFile();\r
  86             if(!open){\r
  87                 FileFilter filter = chooser.getFileFilter();\r
  88                 if(filter instanceof ExtensionFilter){\r
  89                     ExtensionFilter ef = (ExtensionFilter)filter;\r
  90                     if(!filter.accept(file)){\r
  91                         String[] extensions = ef.getExtensions();\r
  92                         file = setExtension(file, extensions[0]);\r
  93                     }\r
  94                 }\r
  95             }\r
  96             return file;\r
  97         }\r
  98         return null;\r
  99     }\r
 100 \r
 101     private File setExtension(File file, String ext){\r
 102         String name = file.getName();\r
 103         int index = name.lastIndexOf('.');\r
 104         String n = name;\r
 105         if(index > 0){\r
 106             n = n.substring(0, index);\r
 107         }\r
 108         name = n + '.' + ext;\r
 109         return new File(file.getParentFile(), name);\r
 110     }\r
 111 }\r