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package imaging.framework;
import java.awt.*;
import java.awt.image.*;
import java.net.*;
import java.applet.*;
import gjt.Separator;
import gjt.ComponentScroller;
class FileNode extends HierarchyAdapter
{
public FileNode (String name,
Icon icon,
boolean root,
ImageApp app)
{
super (name, icon, root);
this.app_ = app;
}
public FileNode (String name,
Icon icon,
ListFiles list,
ImageApp app)
{
super (name, icon);
this.list_ = list;
this.app_ = app;
}
public ImageApp app ()
{
return this.app_;
}
public void handleEvent ()
{
String s = null;
String pString = "";
Hierarchy p = this.getHierarchyParent ();
while (p != null)
{
pString = p.getName () + pString;
p = p.getHierarchyParent ();
}
if (pString.endsWith ("/"))
s = "http://" + pString + this.getName ();
else
s = "http://" + pString + "/" + this.getName ();
System.out.println ("Opening: " + s);
// If list is null, then it is a file, else it is a directory and
// use list to get the rest of the directory.
if (this.list_ == null)
this.app_.openURL (s); // It is a file
else
this.list_.listFiles (s, this); // It is a directory.
}
private ListFiles list_ = null;
private ImageApp app_ = null;
}
class BrowserPanel extends Panel
{
public BrowserPanel (ImageApp parent)
{
this.resize (300, 300);
this.parent_ = parent;
this.setLayout (new BorderLayout ());
}
public int initialize (String url, ListFiles list)
{
String directory = null;
int index = -1;
String pString = list.stripProtocolHeader (url);
if (!pString.endsWith ("/"))
pString = pString + "/";
try
{
Icon dirIcon = new Icon (this.parent_.getCodeBase () +
"../ImageProcessing/framework/" +
"file03.gif", (Applet) this.parent_);
System.out.println (this.parent_.getCodeBase () +
"../ImageProcessing/framework/" +
"file03.gif");
this.root_ = new FileNode (pString,
dirIcon, true, this.parent_);
}
catch (MalformedURLException e)
{
}
int count = list.listFiles (url, this.root_);
// System.out.println ("Count: " + count);
if (count > 0)
{
// Add the root to the component scroller and then add the
// component scroller to the panel.
this.scroller_ = new ComponentScroller (this.root_);
this.add ("Center", this.scroller_);
}
return count;
}
private FileNode root_ = null;
private ImageApp parent_;
private ComponentScroller scroller_;
}
class FileBrowser extends Frame
{
public FileBrowser (String title, ImageApp parent)
{
super (title);
this.resize (300, 300);
this.browser_ = new BrowserPanel (parent);
this.setLayout (new BorderLayout ());
this.cancelButton_ = new Button (" cancel ");
Panel buttonPanel = new Panel ();
buttonPanel.add (this.cancelButton_);
buttonPanel.resize (100, 100);
Panel southPanel = new Panel ();
southPanel.setLayout (new BorderLayout ());
southPanel.add ("North", new Separator ());
southPanel.add ("South", buttonPanel);
this.add ("South", southPanel);
this.add ("Center", this.browser_);
}
public int initialize (String url, ListFiles list)
{
return this.browser_.initialize (url, list);
}
// Handle window destroy events
public boolean handleEvent (Event evt)
{
if (evt.id == Event.WINDOW_DESTROY)
{
this.dispose ();
return true;
}
return super.handleEvent (evt);
}
// Handle all action events
public boolean action (Event e, Object arg)
{
if (e.target instanceof Button)
{
if (e.target == this.cancelButton_)
{
this.dispose ();
}
validate ();
return true;
}
else
return false;
}
private Button cancelButton_;;
private BrowserPanel browser_;
}
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