From 4d9ec9a4461b98e2da8cfbc2e8201c6cacd13046 Mon Sep 17 00:00:00 2001
From: amwaterhouse <Andrew Waterhouse>
Date: Tue, 22 Mar 2005 12:18:16 +0000
Subject: [PATCH] drag and drop files into jalview

---
 src/jalview/gui/Desktop.java |   39 +++++++++++++++++++++++++++++++++------
 1 file changed, 33 insertions(+), 6 deletions(-)

diff --git a/src/jalview/gui/Desktop.java b/src/jalview/gui/Desktop.java
index 8928acc..336cdd3 100755
--- a/src/jalview/gui/Desktop.java
+++ b/src/jalview/gui/Desktop.java
@@ -16,9 +16,13 @@ import jalview.schemes.*;
 import javax.swing.*;
 import java.awt.*;
 import java.awt.event.*;
+import java.awt.dnd.*;
+import javax.swing.*;
+import java.awt.datatransfer.*;
+import java.io.*;
 
 
-public class Desktop extends jalview.jbgui.GDesktop
+public class Desktop extends jalview.jbgui.GDesktop implements DropTargetListener
 {
   public static JDesktopPane desktop;
   static int openFrameCount = 0;
@@ -76,9 +80,9 @@ public void windowClosing(WindowEvent evt)
  jalview.bin.Cache.setProperty("SCREEN_HEIGHT", getHeight() + "");
 }
 });
-      setVisible(true);
+setVisible(true);
 
-/////////Add a splashscreen on startup
+this.setDropTarget(new java.awt.dnd.DropTarget(desktop, this));
 
 
    /////////Add a splashscreen on startup
@@ -144,7 +148,30 @@ public void windowClosing(WindowEvent evt)
    windowMenu.add(menuItem);
  }
 
+ public void dragEnter(DropTargetDragEvent evt){}
+ public void dragExit(DropTargetEvent evt){}
+ public void dragOver(DropTargetDragEvent evt){}
+ public void dropActionChanged(DropTargetDragEvent evt){}
+ public void drop(DropTargetDropEvent evt)
+{
+   Transferable t = evt.getTransferable();
+   if(!t.isDataFlavorSupported(DataFlavor.javaFileListFlavor))
+     return;
 
+   evt.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
+   try{
+     java.util.List files = (java.util.List) t.getTransferData(DataFlavor.javaFileListFlavor);
+
+     for (int i = 0; i < files.size(); i++)
+     {
+       String file = files.get(i).toString();
+       String protocol = "File";
+       String format = jalview.io.IdentifyFile.Identify(file, protocol);
+       LoadFile(file, protocol, format);
+     }
+
+   }catch(Exception ex){ex.printStackTrace();}
+  }
 
  public void inputLocalFileMenuItem_actionPerformed(ActionEvent e)
  {
@@ -170,7 +197,7 @@ public void windowClosing(WindowEvent evt)
    if (FormatProperties.contains(format))
        sequences = FormatAdapter.read(file, protocol, format);
 
-   if (sequences != null)
+   if (sequences != null && sequences.length>0)
    {
      AlignFrame af = new AlignFrame(new Alignment(sequences));
      addInternalFrame(af, file, 700, 500);
@@ -196,7 +223,6 @@ public void windowClosing(WindowEvent evt)
 
    String format = IdentifyFile.Identify(url, "URL");
 
-   System.out.println(format +" format");
    if (format.equals("URL NOT FOUND"))
    {
      JOptionPane.showInternalMessageDialog(Desktop.desktop,"Couldn't locate " + url,
@@ -261,7 +287,8 @@ public void windowClosing(WindowEvent evt)
                                          "JalView 2005 version " + jalview.bin.Cache.VERSION+"; last updated: "+jalview.bin.Cache.BUILD_DATE
                                        +"\nAuthors:  Michele Clamp, James Cuff, Steve Searle, Andrew Waterhouse, Jim Procter & Geoff Barton."
                                        +"\nCurrent development managed by Andrew Waterhouse; Barton Group, University of Dundee."
-                                       +"\nIf  you use JalView, please cite:  \"Clamp, M., Cuff, J., Searle, S. M. and Barton, G. J. (2004), The Jalview Java Alignment Editor\"",
+                                       +"\nIf  you use JalView, please cite:  Bioinformatics,  2004 12;426-7."
+                                       +"\n\"Clamp, M., Cuff, J., Searle, S. M. and Barton, G. J. (2004), The Jalview Java Alignment Editor\"",
                                          "About Jalview",
                                          JOptionPane.INFORMATION_MESSAGE);
  }
-- 
1.7.10.2