package org.openswing.swing.table.editors.client;
import java.io.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.filechooser.FileFilter;
import javax.swing.table.*;
import org.openswing.swing.client.*;
import org.openswing.swing.logger.client.*;
import org.openswing.swing.mdi.client.*;
import org.openswing.swing.table.client.*;
import org.openswing.swing.util.client.*;
import org.openswing.swing.util.java.Consts;
/**
* <p>Title: OpenSwing Framework</p>
* <p>Description: Column editor used to import/download a file from/to local file system.</p>
* <p>Copyright: Copyright (C) 2006 Mauro Carniel</p>
*
* <p> This file is part of OpenSwing Framework.
* This library is free software; you can redistribute it and/or
* modify it under the terms of the (LGPL) Lesser General Public
* License as published by the Free Software Foundation;
*
* GNU LESSER GENERAL PUBLIC LICENSE
* Version 2.1, February 1999
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* The author may be contacted at:
* maurocarniel@tin.it</p>
*
* @author Mauro Carniel
* @version 1.0
*/
public class FileCellEditor extends AbstractCellEditor implements TableCellEditor {
/** flag used to define if a file import button must be showed; default value: <code>true</code> */
private boolean showUploadButton = true;
/** flag used to define if a file export button must be showed; default value: <code>true</code> */
private boolean showDownloadButton = true;
/** optional attribute name used to bind this attribute to the file name */
private String fileNameAttributeName = null;
/** attribute name associated to this column */
private String attributeName = null;
/** cell editor */
private JPanel cell = new JPanel();
/** table */
private JTable table = null;
/** current row index */
private int row = -1;
/** current column index */
private int col = -1;
/** file name */
private JLabel fileName = new JLabel();
/** upload button */
private JButton upload = new JButton(ClientSettings.getInstance().getResources().getResource("upload file"));
/** download button */
private JButton download = new JButton(ClientSettings.getInstance().getResources().getResource("download file"));
/** current cell content */
private byte[] cellContent = null;
/** grid controller */
private GridController gridController = null;
/**
* Constructor.
* @param text button text
* @param actionListeners list of ActionListeners linked to the button
*/
public FileCellEditor(GridController gridController,final FileFilter fileFilter,boolean showUploadButton,boolean showDownloadButton,String attributeName,String fileNameAttributeName) {
this.gridController = gridController;
this.showUploadButton = showUploadButton;
this.showDownloadButton = showDownloadButton;
this.attributeName = attributeName;
this.fileNameAttributeName = fileNameAttributeName;
cell.setLayout(new GridBagLayout());
if (fileNameAttributeName!=null && !fileNameAttributeName.equals(""))
cell.add(fileName, new GridBagConstraints(0, 0, 1, 1, 1.0, 0.0
, GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL,
new Insets(0, 0, 0, 0), 0, 0));
if (showUploadButton)
cell.add(upload, new GridBagConstraints(1, 0, 1, 1, 0.0, 0.0
, GridBagConstraints.WEST, GridBagConstraints.NONE,
new Insets(0, 0, 0, 0), 0, 0));
if (showDownloadButton)
cell.add(download, new GridBagConstraints(2, 0, 1, 1, 0.0, 0.0
, GridBagConstraints.WEST, GridBagConstraints.NONE,
new Insets(0, 0, 0, 0), 0, 0));
cell.setFocusable(true);
download.setFocusable(true);
upload.setFocusable(true);
download.setPreferredSize(new Dimension(21, 20));
download.setMinimumSize(new Dimension(100, 20));
download.setMaximumSize(new Dimension(100, 20));
upload.setPreferredSize(new Dimension(100, 20));
upload.setMinimumSize(new Dimension(100, 20));
upload.setMaximumSize(new Dimension(100, 20));
upload.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JFileChooser f = new JFileChooser();
f.setDialogTitle(ClientSettings.getInstance().getResources().getResource("upload file"));
f.setDialogType(f.OPEN_DIALOG);
f.setApproveButtonText(ClientSettings.getInstance().getResources().getResource("upload file"));
f.setFileSelectionMode(f.FILES_ONLY);
if (fileFilter!=null)
f.setFileFilter(fileFilter);
int res = f.showOpenDialog(ClientUtils.getParentWindow(table));
if (res==f.APPROVE_OPTION && table!=null && table instanceof Grid) {
// file selected: it will be set into cell...
try {
if (FileCellEditor.this.fileNameAttributeName!=null && !FileCellEditor.this.fileNameAttributeName.equals("")) {
((Grid)table).getVOListTableModel().setField(row,FileCellEditor.this.fileNameAttributeName,f.getSelectedFile().getName());
fileName.setText(f.getSelectedFile().getName());
}
BufferedInputStream in = new BufferedInputStream(new FileInputStream(f.getSelectedFile()));
byte[] bytes = new byte[(int)f.getSelectedFile().length()];
in.read(bytes);
in.close();
table.getModel().setValueAt(bytes,row,col);
cellContent = bytes;
download.setEnabled(true);
}
catch (Exception ex) {
OptionPane.showMessageDialog(ClientUtils.getParentWindow(table),"Error",ex.getMessage(),JOptionPane.ERROR_MESSAGE);
}
}
}
});
download.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
final JFileChooser f = new JFileChooser();
f.setDialogTitle(ClientSettings.getInstance().getResources().getResource("download file"));
f.setDialogType(f.SAVE_DIALOG);
f.setApproveButtonText(ClientSettings.getInstance().getResources().getResource("download file"));
if (FileCellEditor.this.fileNameAttributeName!=null && !FileCellEditor.this.fileNameAttributeName.equals("")) {
Object obj = ((Grid)table).getGrids().getVOListTableModel().getField(row,FileCellEditor.this.fileNameAttributeName);
if (obj!=null)
f.setSelectedFile(new File(obj.toString()));
}
int res = f.showSaveDialog(ClientUtils.getParentWindow(table));
if (res==f.APPROVE_OPTION) {
try {
File file = f.getSelectedFile();
BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(file));
cellContent = (byte[])((Grid)FileCellEditor.this.table).getGrids().getVOListTableModel().getField(row,FileCellEditor.this.attributeName);
out.write(cellContent);
out.close();
}
catch (Throwable ex) {
OptionPane.showMessageDialog(ClientUtils.getParentWindow(table),ex.getMessage(),ClientSettings.getInstance().getResources().getResource("Error while saving"),JOptionPane.ERROR_MESSAGE);
}
}
}
});
}
/**
* Stop cell editing. This method stops cell editing (effectively committing the edit) only if the data entered is validated successfully.
* @return <code>true</code> if cell editing may stop, and <code>false</code> otherwise.
*/
public final boolean stopCellEditing() {
fireEditingStopped();
return true;
}
public final Object getCellEditorValue() {
return cellContent;
}
public final Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row,
int column) {
this.table = table;
this.row = row;
this.col = column;
this.cellContent = (byte[])value;
download.setEnabled(cellContent!=null);
download.setOpaque(false);
upload.setOpaque(false);
fileName.setOpaque(false);
upload.setEnabled(((Grid)table).getMode()!=Consts.READONLY);
if (isSelected && table instanceof Grid) {
Color selColor = null;
try {
selColor = new Color(
Math.min(255,
2 * ( (Grid) table).getActiveCellBackgroundColor().getRed() -
ClientSettings.GRID_CELL_BACKGROUND.getRed()),
Math.min(255,
2 * ( (Grid) table).getActiveCellBackgroundColor().getGreen() -
ClientSettings.GRID_CELL_BACKGROUND.getGreen()),
Math.min(255,
2 * ( (Grid) table).getActiveCellBackgroundColor().getBlue() -
ClientSettings.GRID_CELL_BACKGROUND.getBlue())
);
}
catch (Exception ex1) {
selColor = ( (Grid) table).getActiveCellBackgroundColor();
}
Color backColor = gridController.getBackgroundColor(row,table.getModel().getColumnName(table.convertColumnIndexToModel(column)),value);
cell.setBackground(new Color(
(backColor.getRed()+selColor.getRed())/2,
(backColor.getGreen()+selColor.getGreen())/2,
(backColor.getBlue()+selColor.getBlue())/2
));
download.setBackground(new Color(
(backColor.getRed()+selColor.getRed())/2,
(backColor.getGreen()+selColor.getGreen())/2,
(backColor.getBlue()+selColor.getBlue())/2
));
upload.setBackground(new Color(
(backColor.getRed()+selColor.getRed())/2,
(backColor.getGreen()+selColor.getGreen())/2,
(backColor.getBlue()+selColor.getBlue())/2
));
cell.setBorder(BorderFactory.createLineBorder(table.getSelectionForeground()));
// } else if (isSelected && !hasFocus) {
// Color backColor = gridController.getBackgroundColor(row,table.getModel().getColumnName(table.convertColumnIndexToModel(column)),value);
// Color selColor = null;
// try {
// selColor = new Color(
// Math.min(255,
// 2 * table.getSelectionBackground().getRed() -
// ClientSettings.GRID_CELL_BACKGROUND.getRed()),
// Math.min(255,
// 2 * table.getSelectionBackground().getGreen() -
// ClientSettings.GRID_CELL_BACKGROUND.getGreen()),
// Math.min(255,
// 2 * table.getSelectionBackground().getBlue() -
// ClientSettings.GRID_CELL_BACKGROUND.getBlue())
// );
// }
// catch (Exception ex1) {
// selColor = ( (Grid) table).getSelectionBackground();
// }
// cell.setBackground(new Color(
// (backColor.getRed()+selColor.getRed())/2,
// (backColor.getGreen()+selColor.getGreen())/2,
// (backColor.getBlue()+selColor.getBlue())/2
// ));
//
// cell.setBorder(BorderFactory.createRaisedBevelBorder());
} else {
cell.setForeground(gridController.getForegroundColor(row,table.getModel().getColumnName(table.convertColumnIndexToModel(column)),value));
cell.setBorder(BorderFactory.createRaisedBevelBorder());
if (((Grid)table).getMode()==Consts.READONLY || !((Grid)table).isColorsInReadOnlyMode())
cell.setBackground(gridController.getBackgroundColor(row,table.getModel().getColumnName(table.convertColumnIndexToModel(column)),value));
else {
if (table.isCellEditable(row,column))
cell.setBackground(ClientSettings.GRID_EDITABLE_CELL_BACKGROUND);
else
cell.setBackground(ClientSettings.GRID_NOT_EDITABLE_CELL_BACKGROUND);
}
}
if (table instanceof Grid &&
fileNameAttributeName!=null &&
!fileNameAttributeName.equals("")) {
Object obj = ((Grid)table).getGrids().getVOListTableModel().getField(row,fileNameAttributeName);
fileName.setText( obj==null?"":obj.toString() );
}
return cell;
}
public final void finalize() {
table = null;
}
}