/*
* $Id$
*
* Copyright 2007 Bruno Lowagie.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.lowagie.rups.view.itext;
import java.awt.CardLayout;
import java.util.Observable;
import java.util.Observer;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import com.lowagie.rups.view.models.DictionaryTableModel;
import com.lowagie.rups.view.models.PdfArrayTableModel;
import com.lowagie.text.pdf.PdfArray;
import com.lowagie.text.pdf.PdfDictionary;
import com.lowagie.text.pdf.PdfObject;
public class PdfObjectPanel extends JPanel implements Observer {
/** Name of a panel in the CardLayout. */
private static final String TEXT = "text";
/** Name of a panel in the CardLayout. */
private static final String TABLE = "table";
/** The layout that will show the info about the PDF object that is being analyzed. */
protected CardLayout layout = new CardLayout();
/** Table with dictionary entries. */
JTable table = new JTable();
/** The text pane with the info about a PDF object in the bottom panel. */
JTextArea text = new JTextArea();
/** Creates a PDF object panel. */
public PdfObjectPanel() {
// layout
setLayout(layout);
// dictionary / array / stream
JScrollPane dict_scrollpane = new JScrollPane();
dict_scrollpane.setViewportView(table);
add(dict_scrollpane, TABLE);
// number / string / ...
JScrollPane text_scrollpane = new JScrollPane();
text_scrollpane.setViewportView(text);
add(text_scrollpane, TEXT);
}
/**
* Clear the object panel.
*/
public void clear() {
text.setText(null);
layout.show(this, TEXT);
}
/**
* @see java.util.Observer#update(java.util.Observable, java.lang.Object)
*/
public void update(Observable observable, Object obj) {
clear();
}
/**
* Shows a PdfObject as text or in a table.
* @param object the object that needs to be shown.
*/
public void render(PdfObject object) {
if (object == null) {
text.setText(null);
layout.show(this, TEXT);
this.repaint();
text.repaint();
return;
}
switch(object.type()) {
case PdfObject.DICTIONARY:
case PdfObject.STREAM:
table.setModel(new DictionaryTableModel((PdfDictionary)object));
layout.show(this, TABLE);
this.repaint();
break;
case PdfObject.ARRAY:
table.setModel(new PdfArrayTableModel((PdfArray)object));
layout.show(this, TABLE);
this.repaint();
break;
default:
text.setText(object.toString());
layout.show(this, TEXT);
break;
}
}
/** a serial version id. */
private static final long serialVersionUID = 1302283071087762494L;
}