X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fio%2FJalviewFileView.java;h=18114f34b747c6fc44b02fa42b4fc49ab5b020fa;hb=5b9fcd4e9349485a0be84260b3199c746adfbe92;hp=4df657607344199aa045bca0229f8a0b77f2907f;hpb=99c58ee0ae2a848f982552e53feaf6d5cb9925e5;p=jalview.git

diff --git a/src/jalview/io/JalviewFileView.java b/src/jalview/io/JalviewFileView.java
index 4df6576..18114f3 100755
--- a/src/jalview/io/JalviewFileView.java
+++ b/src/jalview/io/JalviewFileView.java
@@ -1,98 +1,154 @@
-/*
-* Jalview - A Sequence Alignment Editor and Viewer
-* Copyright (C) 2005 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
-*
-* This program is free software; you can redistribute it and/or
-* modify it under the terms of the GNU General Public License
-* as published by the Free Software Foundation; either version 2
-* of the License, or (at your option) any later version.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-* GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with this program; if not, write to the Free Software
-* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
-*/
-
-package jalview.io;
-
-import javax.swing.filechooser.FileView;
-import javax.swing.*;
-import java.io.*;
-import java.util.*;
-
-public class JalviewFileView extends FileView
-{
-  static Hashtable alignSuffix = new Hashtable();
-  static{
-    alignSuffix.put("fasta", "Fasta file");
-    alignSuffix.put("fa", "Fasta file");
-    alignSuffix.put("fastq", "Fasta file");
-    alignSuffix.put("blc", "BLC file");
-    alignSuffix.put("msf", "MSF file");
-    alignSuffix.put("pfam", "PFAM file");
-    alignSuffix.put("aln", "Clustal file");
-    alignSuffix.put("pir", "PIR file");
-  }
-  public String getTypeDescription(File f)
-  {
-    String extension = getExtension(f);
-    String type = null;
-
-    if (extension != null)
-    {
-      if (alignSuffix.containsKey(extension))
-      {
-        type = alignSuffix.get(extension).toString();
-      }
-    }
-    return type;
-  }
-
-  public Icon getIcon(File f)
-  {
-    String extension = getExtension(f);
-    Icon icon = null;
-
-    if (extension != null)
-    {
-      if (alignSuffix.containsKey(extension))
-      {
-        icon = createImageIcon("/images/file.png");
-      }
-    }
-    return icon;
-  }
-
-
-  /*
-   * Get the extension of a file.
-   */
-  public static String getExtension(File f) {
-      String ext = null;
-      String s = f.getName();
-      int i = s.lastIndexOf('.');
-
-      if (i > 0 &&  i < s.length() - 1) {
-          ext = s.substring(i+1).toLowerCase();
-      }
-      return ext;
-  }
-
-  /** Returns an ImageIcon, or null if the path was invalid. */
-  protected static ImageIcon createImageIcon(String path) {
-      java.net.URL imgURL = JalviewFileView.class.getResource(path);
-      if (imgURL != null) {
-          return new ImageIcon(imgURL);
-      } else {
-          System.err.println("JalviewFileView.createImageIcon: Couldn't find file: " + path);
-          return null;
-      }
-  }
-
-}
-
-
+/*
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
+ * 
+ * This file is part of Jalview.
+ * 
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License 
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *  
+ * Jalview is distributed in the hope that it will be useful, but 
+ * WITHOUT ANY WARRANTY; without even the implied warranty 
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+ * PURPOSE.  See the GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
+ */
+package jalview.io;
+
+import java.io.File;
+import java.net.URL;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.swing.Icon;
+import javax.swing.ImageIcon;
+import javax.swing.filechooser.FileView;
+
+public class JalviewFileView extends FileView
+{
+  private static Map<String, String> extensions;
+
+  private static Map<String, ImageIcon> icons;
+
+  private void loadExtensions()
+  {
+    extensions = new HashMap<>();
+    for (FileFormatI ff : FileFormats.getInstance().getFormats())
+    {
+      String desc = ff.getName() + " file";
+      String exts = ff.getExtensions();
+      for (String ext : exts.split(","))
+      {
+        ext = ext.trim().toLowerCase();
+        extensions.put(ext,
+                desc + ("jar".equals(ext) ? " (old)" : ""));
+      }
+    }
+  }
+
+  @Override
+  public String getTypeDescription(File f)
+  {
+    String extension = getExtension(f);
+    String type = getDescriptionForExtension(extension);
+    if (extension != null)
+    {
+      if (extensions.containsKey(extension))
+      {
+        type = extensions.get(extension).toString();
+      }
+    }
+
+    return type;
+  }
+
+  private String getDescriptionForExtension(String extension)
+  {
+    synchronized (this)
+    {
+      if (extensions == null)
+      {
+        loadExtensions();
+      }
+    }
+    return extensions.get(extension);
+  }
+
+  @Override
+  public Icon getIcon(File f)
+  {
+    String extension = getExtension(f);
+    Icon icon = null;
+
+    if (getDescriptionForExtension(extension) != null)
+    {
+      icon = getImageIcon("/images/file.png");
+    }
+
+    return icon;
+  }
+
+  /**
+   * Returns the extension of a file (part of the name after the last period),
+   * in lower case, or null if the name ends in or does not include a period.
+   */
+  public static String getExtension(File f)
+  {
+    String ext = null;
+    String s = f.getName();
+    int i = s.lastIndexOf('.');
+
+    if ((i > 0) && (i < (s.length() - 1)))
+    {
+      ext = s.substring(i + 1).toLowerCase();
+    }
+
+    return ext;
+  }
+
+  /**
+   * Returns an ImageIcon, or null if the file was not found
+   * 
+   * @param filePath
+   */
+  protected ImageIcon getImageIcon(String filePath)
+  {
+    /*
+     * we reuse a single icon object per path here
+     */
+    synchronized (this)
+    {
+      if (icons == null)
+      {
+        icons = new HashMap<>();
+      }
+      if (!icons.containsKey(filePath))
+      {
+        ImageIcon icon = null;
+        URL imgURL = JalviewFileView.class.getResource(filePath);
+        if (imgURL != null)
+        {
+          icon = new ImageIcon(imgURL);
+        }
+        else
+        {
+          System.err.println(
+                  "JalviewFileView.createImageIcon: Couldn't find file: "
+                          + filePath);
+        }
+        icons.put(filePath, icon);
+      }
+    }
+
+    /*
+     * return the image from the table (which may be null if
+     * icon creation failed)
+     */
+    return icons.get(filePath);
+  }
+}