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Viewing all the outputs in one window

 
Manoj Paul
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Posts: 112
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Hello friends...

My java page shows a tree structure of my local drives, and when i click in any of the folder it shows the images of that particular folder, but in a new window..... what i want is the tree structure and the names of the files of the folder and the image view of the image file all in the same window....
I am sending my code below... can any one help me out in editing the code so as to see all the contents of my application in one window....


*****************************************************************
//package mypackage1;

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
import java.text.SimpleDateFormat;

import javax.swing.*;
import javax.swing.tree.*;
import javax.swing.event.*;
import java.awt.Dimension;
import java.awt.Panel;
import java.awt.BorderLayout;
import java.awt.Rectangle;

import javax.swing.JEditorPane;
import javax.swing.JTextArea;
import javax.swing.JTree;
import java.awt.ScrollPane;
import javax.swing.JPasswordField;
import javax.swing.JScrollPane;
import java.net.*;

public class PhotoBucket extends JFrame
{


// private ScrollPane scrollPane1 = new ScrollPane();

public static final ImageIcon ICON_COMPUTER =new ImageIcon("computer.gif");
public static final ImageIcon ICON_DISK =new ImageIcon("disk.gif");
public static final ImageIcon ICON_FOLDER =new ImageIcon("folder.gif");
public static final ImageIcon ICON_EXPANDEDFOLDER =new ImageIcon("expandedfolder.gif");


// protected JTree jTree1;
protected DefaultTreeModel m_model;
// protected JTextField m_display;

// NEW
protected JPopupMenu m_popup;
protected Action m_action;
protected TreePath m_clickedPath;
private JScrollPane jScrollPane1 = new JScrollPane();
private JTree jTree1;

public PhotoBucket()
{
DefaultMutableTreeNode top = new DefaultMutableTreeNode(
new IconData(ICON_COMPUTER, null, "My Computer")); // for the root of the tree

DefaultMutableTreeNode node;
File[] roots = File.listRoots(); /// for the nodes of the tree
for (int k=0; k<roots.length; k++)
{
node = new DefaultMutableTreeNode(new IconData(ICON_DISK,
null, new FileNode(roots[k])));
top.add(node);
node.add(new DefaultMutableTreeNode( new Boolean(true) ));
}

m_model = new DefaultTreeModel(top);
jTree1 = new JTree(m_model);

jTree1.putClientProperty("JTree.lineStyle", "Angled");

TreeCellRenderer renderer = new
IconCellRenderer();
jTree1.setCellRenderer(renderer);

jTree1.addTreeExpansionListener(new
DirExpansionListener());

jTree1.addTreeSelectionListener(new
DirSelectionListener());

jTree1.getSelectionModel().setSelectionMode(
TreeSelectionModel.SINGLE_TREE_SELECTION);
jTree1.setShowsRootHandles(true);
jTree1.setEditable(false);

// m_display = new JTextField(); // to duisplay the full path of user selection on top
// m_display.setEditable(false);
// getContentPane().add(m_display, BorderLayout.NORTH);

m_popup = new JPopupMenu(); // to pop-up the nodes when clicked
m_action = new AbstractAction()
{
public void actionPerformed(ActionEvent e)
{
if (m_clickedPath==null)
return;
if (jTree1.isExpanded(m_clickedPath))
jTree1.collapsePath(m_clickedPath);
else
jTree1.expandPath(m_clickedPath);
}
};
m_popup.add(m_action);
m_popup.addSeparator();

Action a1 = new AbstractAction("Delete")
{
public void actionPerformed(ActionEvent e)
{
jTree1.repaint();
JOptionPane.showMessageDialog(PhotoBucket.this,
"Delete option is not implemented",
"Info", JOptionPane.INFORMATION_MESSAGE);
}
};
m_popup.add(a1);

Action a2 = new AbstractAction("Rename")
{
public void actionPerformed(ActionEvent e)
{
jTree1.repaint();
JOptionPane.showMessageDialog(PhotoBucket.this,
"Rename option is not implemented",
"Info", JOptionPane.INFORMATION_MESSAGE);
}
};
m_popup.add(a2);
jTree1.add(m_popup);
jTree1.addMouseListener(new PopupTrigger());

WindowListener wndCloser = new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
};
addWindowListener(wndCloser);

setVisible(true);
try
{
jbInit();
}
catch(Exception e)
{
e.printStackTrace();
}
}

private void jbInit() throws Exception
{
this.getContentPane().setLayout(null);
this.setSize(new Dimension(733, 462));
this.setResizable(false);
// scrollPane1.setBounds(new Rectangle(10, 10, 185, 185));
jScrollPane1.setBounds(new Rectangle(0, 15, 150, 400));
// scrollPane1.add(jTree1, null);
jScrollPane1.getViewport().add(jTree1, null);
this.getContentPane().add(jScrollPane1, null);
// this.getContentPane().add(scrollPane1, null);

// this.setSize(new Dimension(752, 303));
//this.getContentPane().setLayout(null);
}
DefaultMutableTreeNode getTreeNode(TreePath path)
{
return (DefaultMutableTreeNode)(path.getLastPathComponent());
}

FileNode getFileNode(DefaultMutableTreeNode node)
{
if (node == null)
return null;
Object obj = node.getUserObject();
if (obj instanceof IconData)
obj = ((IconData)obj).getObject();
if (obj instanceof FileNode)
return (FileNode)obj;
else
return null;
}

class PopupTrigger extends MouseAdapter
{
public void mouseReleased(MouseEvent e)
{
if (e.isPopupTrigger())
{
int x = e.getX();
int y = e.getY();
TreePath path = jTree1.getPathForLocation(x, y);
if (path != null)
{
if (jTree1.isExpanded(path))
m_action.putValue(Action.NAME, "Collapse");
else
m_action.putValue(Action.NAME, "Expand");
m_popup.show(jTree1, x, y);
m_clickedPath = path;
}
}
}
}

// Make sure expansion is threaded and updating the tree model
// only occurs within the event dispatching thread.
class DirExpansionListener implements TreeExpansionListener
{
public void treeExpanded(TreeExpansionEvent event)
{
final DefaultMutableTreeNode node = getTreeNode(
event.getPath());
final FileNode fnode = getFileNode(node);

Thread runner = new Thread()
{
public void run()
{
if (fnode != null && fnode.expand(node))
{
Runnable runnable = new Runnable()
{
public void run()
{
m_model.reload(node);
}
};
SwingUtilities.invokeLater(runnable);
}
}
};
runner.start();
}

public void treeCollapsed(TreeExpansionEvent event) {}
}

class DirSelectionListener
implements TreeSelectionListener
{
public void valueChanged(TreeSelectionEvent event)
{
DefaultMutableTreeNode node = getTreeNode(
event.getPath());
FileNode fnode = getFileNode(node);
if (fnode != null)
{
// m_display.setText(fnode.getFile().getAbsolutePath());

String holdPath=fnode.getFile().getAbsolutePath();

File myDirectory = new File(fnode.getFile().getAbsolutePath());

if ( myDirectory.exists() && myDirectory.isDirectory() )
{
// List the files
String[] fileNameList = myDirectory.list();
String holdFiles="";

for(int u=0;u<fileNameList.length;u++)
{
holdFiles=holdFiles+" "+fileNameList[u];
}

SplitPane obj=new SplitPane();
obj.show(holdFiles,holdPath);
}
}
else
{
// m_display.setText("");
}
}
}


public static void main(String args[])
{
// new PhotoBucket();
PhotoBucket obj=new PhotoBucket();
obj.setVisible(true);
}
}

class IconCellRenderer
extends JLabel
implements TreeCellRenderer
{
protected Color m_textSelectionColor;
protected Color m_textNonSelectionColor;
protected Color m_bkSelectionColor;
protected Color m_bkNonSelectionColor;
protected Color m_borderSelectionColor;

protected boolean m_selected;

public IconCellRenderer()
{
super();
m_textSelectionColor = UIManager.getColor(
"Tree.selectionForeground");
m_textNonSelectionColor = UIManager.getColor(
"Tree.textForeground");
m_bkSelectionColor = UIManager.getColor(
"Tree.selectionBackground");
m_bkNonSelectionColor = UIManager.getColor(
"Tree.textBackground");
m_borderSelectionColor = UIManager.getColor(
"Tree.selectionBorderColor");
setOpaque(false);
}

public Component getTreeCellRendererComponent(JTree tree,
Object value, boolean sel, boolean expanded, boolean leaf,
int row, boolean hasFocus)

{
DefaultMutableTreeNode node =
(DefaultMutableTreeNode)value;
Object obj = node.getUserObject();
setText(obj.toString());

if (obj instanceof Boolean)
setText("Retrieving data...");

if (obj instanceof IconData)
{
IconData idata = (IconData)obj;
if (expanded)
setIcon(idata.getExpandedIcon());
else
setIcon(idata.getIcon());
}
else
setIcon(null);

setFont(tree.getFont());
setForeground(sel ? m_textSelectionColor :
m_textNonSelectionColor);
setBackground(sel ? m_bkSelectionColor :
m_bkNonSelectionColor);
m_selected = sel;
return this;
}

public void paintComponent(Graphics g)
{
Color bColor = getBackground();
Icon icon = getIcon();

g.setColor(bColor);
int offset = 0;
if(icon != null && getText() != null)
offset = (icon.getIconWidth() + getIconTextGap());
g.fillRect(offset, 0, getWidth() - 1 - offset,
getHeight() - 1);

if (m_selected)
{
g.setColor(m_borderSelectionColor);
g.drawRect(offset, 0, getWidth()-1-offset, getHeight()-1);
}

super.paintComponent(g);
}
}

class IconData
{
protected Icon m_icon;
protected Icon m_expandedIcon;
protected Object m_data;

public IconData(Icon icon, Object data)
{
m_icon = icon;
m_expandedIcon = null;
m_data = data;
}

public IconData(Icon icon, Icon expandedIcon, Object data)
{
m_icon = icon;
m_expandedIcon = expandedIcon;
m_data = data;
}

public Icon getIcon()
{
return m_icon;
}

public Icon getExpandedIcon()
{
return m_expandedIcon!=null ? m_expandedIcon : m_icon;
}

public Object getObject()
{
return m_data;
}

public String toString()
{
return m_data.toString();
}
}

class FileNode
{
protected File m_file;

public FileNode(File file)
{
m_file = file;
}

public File getFile()
{
return m_file;
}

public String toString()
{
return m_file.getName().length() > 0 ? m_file.getName() :
m_file.getPath();
}

public boolean expand(DefaultMutableTreeNode parent)
{
DefaultMutableTreeNode flag =
(DefaultMutableTreeNode)parent.getFirstChild();
if (flag==null) // No flag
return false;
Object obj = flag.getUserObject();
if (!(obj instanceof Boolean))
return false; // Already expanded

parent.removeAllChildren(); // Remove Flag

File[] files = listFiles();
if (files == null)
return true;

Vector v = new Vector();

for (int k=0; k<files.length; k++)
{
File f = files[k];
if (!(f.isDirectory()))
continue;

FileNode newNode = new FileNode(f);

boolean isAdded = false;
for (int i=0; i<v.size(); i++)
{
FileNode nd = (FileNode)v.elementAt(i);
if (newNode.compareTo(nd) < 0)
{
v.insertElementAt(newNode, i);
isAdded = true;
break;
}
}
if (!isAdded)
v.addElement(newNode);
}

for (int i=0; i<v.size(); i++)
{
FileNode nd = (FileNode)v.elementAt(i);
IconData idata = new IconData(PhotoBucket.ICON_FOLDER,
PhotoBucket.ICON_EXPANDEDFOLDER, nd);
DefaultMutableTreeNode node = new
DefaultMutableTreeNode(idata);
parent.add(node);

if (nd.hasSubDirs())
node.add(new DefaultMutableTreeNode(
new Boolean(true) ));
}

return true;
}

public boolean hasSubDirs()
{
File[] files = listFiles();
if (files == null)
return false;
for (int k=0; k<files.length; k++)
{
if (files[k].isDirectory())
return true;
}
return false;
}

public int compareTo(FileNode toCompare)
{
return m_file.getName().compareToIgnoreCase(
toCompare.m_file.getName() );
}

protected File[] listFiles()
{
if (!m_file.isDirectory())
{
JOptionPane.showMessageDialog(null,"Error reading directory "+m_file.getAbsolutePath(),"Warning", JOptionPane.WARNING_MESSAGE);
return null;
}
try
{
return m_file.listFiles();
}
catch (Exception ex)
{
JOptionPane.showMessageDialog(null,
"Error reading directory "+m_file.getAbsolutePath(),
"Warning", JOptionPane.WARNING_MESSAGE);
return null;
}
}
}



class SplitPane implements ListSelectionListener {

private Vector imageNames;
private JLabel picture;
private JList list;
private JSplitPane splitPane;

String path="";
String imageNamesString="";

public SplitPane()
{

}
public SplitPane(String holdFiles,String holdPath)
{
path=holdPath.replace('\\','/');

imageNamesString =holdFiles;
imageNames = parseList(imageNamesString);


//Create the list of images and put it in a scroll pane.
list = new JList(imageNames);
list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
list.setSelectedIndex(0);
list.addListSelectionListener(this);
JScrollPane listScrollPane = new JScrollPane(list);

//Set up the picture label and put it in a scroll pane.
ImageIcon firstImage = createImageIcon(path+"/"+(String)imageNames.firstElement());
if (firstImage != null)
{
picture = new JLabel(firstImage);
}
else
{
picture = new JLabel((String)imageNames.firstElement());
}

JScrollPane pictureScrollPane = new JScrollPane(picture);

//Create a split pane with the two scroll panes in it.
splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,
listScrollPane, pictureScrollPane);
splitPane.setOneTouchExpandable(true);
splitPane.setDividerLocation(150);

//Provide minimum sizes for the two components in the split pane.
Dimension minimumSize = new Dimension(100, 50);
listScrollPane.setMinimumSize(minimumSize);
pictureScrollPane.setMinimumSize(minimumSize);

//Provide a preferred size for the split pane.
splitPane.setPreferredSize(new Dimension(400, 200));
}

//Used by SplitPaneDemo2
public JList getImageList() {
return list;
}

public JSplitPane getSplitPane() {
return splitPane;
}

public void valueChanged(ListSelectionEvent e)
{

if (e.getValueIsAdjusting())
{
return;
}

JList theList = (JList)e.getSource();
if (theList.isSelectionEmpty())
{
picture.setIcon(null);
picture.setText(null);
}
else
{
int index = theList.getSelectedIndex();
ImageIcon newImage = createImageIcon(path+"/" +(String)imageNames.elementAt(index));
picture.setIcon(newImage);

if (newImage != null)
{
picture.setText(null);
}
else
{
picture.setText("Image not found: "
+ (String)imageNames.elementAt(index));
}
}
}

protected static Vector parseList(String theStringList) {
Vector<String> v = new Vector<String>(10);
StringTokenizer tokenizer = new StringTokenizer(theStringList, " ");
while (tokenizer.hasMoreTokens()) {
String image = tokenizer.nextToken();
v.addElement(image);
}
return v;
}

/** Called when the image property file can't be found. */


/** Returns an ImageIcon, or null if the path was invalid. */
protected static ImageIcon createImageIcon(String path)
{
File f=new File(path);
URL imgURL=null;

try
{
imgURL = f.toURL();
}
catch (MalformedURLException e)
{
}

if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find file: " + path);
return null;
}
}

/**
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event-dispatching thread.
*/
private static void createAndShowGUI(String holdFiles, String holdPath) {

//Create and set up the window.
String filesHold=holdFiles;
String pathHold=holdPath;

JFrame frame = new JFrame("SplitPane");
// frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
SplitPane splitPaneDemo = new SplitPane(filesHold,pathHold);
frame.getContentPane().add(splitPaneDemo.getSplitPane());

//Display the window.
frame.pack();
frame.setVisible(true);
}

public void show(String hfiles,String hpath)
{
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
final String files=hfiles;
final String path=hpath;

javax.swing.SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
createAndShowGUI(files,path);
}
});
}
}


Thank you friends:
 
pete stein
Bartender
Posts: 1561
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P = k/L

where:
P = the probability someone will read your code
k = some constant
L = length of code

Any way to cut out that which is not absolutely essential and still show your point? I have to say that it is a nifty little app. Wish I knew more about swing to be able to help you. Good luck in finding your solution!
/Pete
[ March 27, 2007: Message edited by: pete stein ]
 
Liam Tiarnach
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Posts: 51
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Each time you are creating a new top level window (JFrame)

every time you call the "show()" method from you class SplitPane, to have it all display in same window, you have to get a reference to that window then add your "splitpane" to that window.

an example


for more detail information, check this linkJava Swing Tutorial
 
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