📄 dllpathdialog.java
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/*************************************************************************
This program is copyrighted. Please refer to COPYRIGHT.txt for the
copyright notice.
This file is part of JavaNNS.
JavaNNS 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.
JavaNNS is distributed in the hope that it will be useful,
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 JavaNNS; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*************************************************************************/
package javanns;
/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2002</p>
* <p>Company: </p>
* @author unascribed
* @version 1.0
*/
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.File;
/**
* DLLPathDialog opens an JDialog when JavaNNS couldn磘 find the library.
* This may be a result, that there exists no such library, or it is not
* in one of the systems library paths.
* This dialog enables the user to specify where he wants to write the
* library to.
*/
class DLLPathDialog extends JDialog implements ActionListener{
boolean ok = false;
JTextArea taExpl;
JTextField tfPath;
JButton bOk, bBrowse;
static String libName;
javax.swing.filechooser.FileFilter ffDirLib = new javax.swing.filechooser.FileFilter(){
public boolean accept(File f){
if( f.isDirectory() ) return true;
// falls in dem Ordner ein Dateiname auftaucht, welcher den dll-Namen enthaelt,
// wird das File angezeigt
String name = f.getName();
if(name.equals(libName)) return true;
return false;
}
public String getDescription() { return "Directories & " + libName; }
};
public DLLPathDialog(Snns snns, String dll_path, String libName){
super(snns,"Installing library", true);
this.libName = libName;
Container c = getContentPane();
GridBagLayout gbl = new GridBagLayout();
c.setLayout(gbl);
GridBagConstraints gbc = new GridBagConstraints();
gbc.insets = new Insets(6, 5, 6, 5);
String text =
"<html><head><title>Installing Library</title></head><body>"
+ "<h1><font face='Arial, Helvetica, sans-serif'>Installing "
+ "Library</font></h1>"
+ "<p><font face='Arial, Helvetica, sans-serif'>"
+ "JavaNNS needs the library <b><code>" + libName + "</code></b> "
+ "in order to work properly. "
+ "The library will now be installed into the directory specified "
+ "below. This is by default your current working directory, but "
+ "you are free to choose any other directory instead. It is of "
+ "an advantage if the library is installed in the system library "
+ "path, especially if you share this machine with other users. "
+ "</font></p><p><font face='Arial, Helvetica, sans-serif'>"
+ "JavaNNS remembers the location of the library by storing it "
+ "in the file <b><code>JavaNNS.properties</code></b>, which is "
+ "generated and placed "
+ "into your home directory. If you wish to change properties, "
+ "use the <b><i>Properties</i></b> editor in the JavaNNS "
+ "<b><i>View</i></b> menu. "
+ "</font></p><p><font face='Arial, Helvetica, sans-serif'>"
+ "If JavaNNS has been run previously on your machine, it is "
+ "possible that the library already exists. In that case, "
+ "the path below shows where it was last found. If you know "
+ "where the library "
+ "is placed, you can enter the path to it into the text field "
+ "below or browse into the directory containing it. This will "
+ "prevent JavaNNS from installing another copy of the same file. "
+ "</font></p><p><font face='Arial, Helvetica, sans-serif'>"
+ "You can delete the library or the "
+ "<b><code>JavaNNS.properties</code></b> file any time you want. "
+ "In that case, this dialog will appear again the next time you "
+ "start JavaNNS.</font></body></html>";
JEditorPane epExpl = new JEditorPane("text/html", text) {
public Dimension getPreferredScrollableViewportSize() {
return new Dimension(0, 320);
}
};
epExpl.setEditable(false);
epExpl.setBackground(getBackground());
JScrollPane spExpl = new JScrollPane(epExpl);
gbc.gridwidth = 3;
gbc.fill = gbc.HORIZONTAL;
gbl.setConstraints(spExpl,gbc);
c.add(spExpl);
JLabel lPath = new JLabel("Library Path: ");
gbc.gridy = 1;
gbc.gridwidth = 1;
gbc.fill = gbc.NONE;
gbl.setConstraints(lPath, gbc);
c.add(lPath);
if(dll_path == null) dll_path = System.getProperty("user.dir", "");
tfPath = new JTextField(dll_path, 30);
gbc.gridx = 1;
gbl.setConstraints(tfPath,gbc);
c.add(tfPath);
bBrowse = new JButton("Browse...");
bBrowse.setMnemonic(KeyEvent.VK_B);
bBrowse.addActionListener(this);
gbc.anchor = gbc.EAST;
gbc.gridx = 2;
gbl.setConstraints(bBrowse,gbc);
c.add(bBrowse);
Dimension path_dim = tfPath.getPreferredSize(),
search_dim = bBrowse.getPreferredSize();
path_dim.height = search_dim.height;
tfPath.setPreferredSize(path_dim);
gbc.gridy = 2;
bOk = new JButton("OK");
bOk.setMnemonic(KeyEvent.VK_O);
bOk.addActionListener(this);
bOk.setPreferredSize(search_dim);
gbl.setConstraints(bOk,gbc);
c.add(bOk);
pack();
setResizable(false);
Dimension sd = Toolkit.getDefaultToolkit().getScreenSize(),
dd = getPreferredSize();
setLocation((sd.width-dd.width)/2,(sd.height-dd.height)/2);
setVisible(true);
}
public void actionPerformed(ActionEvent evt){
Object src = evt.getSource();
if( src == bOk ) {ok = true; setVisible(false);}
else {
JFileChooser fc = new JFileChooser(System.getProperty("user.dir",""));
fc.setDialogType(JFileChooser.DIRECTORIES_ONLY);
fc.setFileFilter(ffDirLib);
if( fc.showOpenDialog(this) == JFileChooser.APPROVE_OPTION ){
File f = fc.getSelectedFile();
tfPath.setText(f.getParentFile().getPath());
fc.setVisible(false);
}
}
}
public String getPath(){ return tfPath.getText(); }
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