001 /*
002 * Copyright (c) 2005 Einar Pehrson <einar@pehrson.nu>.
003 *
004 * This file is part of
005 * CleanSheets - a spreadsheet application for the Java platform.
006 *
007 * CleanSheets is free software; you can redistribute it and/or modify
008 * it under the terms of the GNU General Public License as published by
009 * the Free Software Foundation; either version 2 of the License, or
010 * (at your option) any later version.
011 *
012 * CleanSheets is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
015 * GNU General Public License for more details.
016 *
017 * You should have received a copy of the GNU General Public License
018 * along with CleanSheets; if not, write to the Free Software
019 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020 */
021 package csheets.ui.ctrl;
022
023 import java.awt.event.ActionEvent;
024 import java.awt.event.KeyEvent;
025 import java.io.File;
026 import java.io.FileNotFoundException;
027 import java.io.InvalidClassException;
028 import java.io.OptionalDataException;
029 import java.io.StreamCorruptedException;
030
031 import javax.swing.ImageIcon;
032 import javax.swing.KeyStroke;
033
034 import csheets.CleanSheets;
035 import csheets.core.Workbook;
036 import csheets.ui.FileChooser;
037
038 /**
039 * An action for opening a spreadsheet.
040 * @author Einar Pehrson
041 */
042 @SuppressWarnings("serial")
043 public class OpenAction extends BaseAction {
044
045 /** The CleanSheets application */
046 protected CleanSheets app;
047
048 /** The user interface controller */
049 protected UIController uiController;
050
051 /** The file chooser to use when prompting the user for the file to open */
052 private FileChooser chooser;
053
054 /**
055 * Creates a new open action.
056 * @param app the CleanSheets application
057 * @param uiController the user interface controller
058 * @param chooser the file chooser to use when prompting the user for the file to open
059 */
060 public OpenAction(CleanSheets app, UIController uiController, FileChooser chooser) {
061 // Stores members
062 this.app = app;
063 this.uiController = uiController;
064 this.chooser = chooser;
065 setEnabled(chooser != null);
066 }
067
068 protected String getName() {
069 return "Open...";
070 }
071
072 protected void defineProperties() {
073 putValue(MNEMONIC_KEY, KeyEvent.VK_O);
074 putValue(ACCELERATOR_KEY, KeyStroke.getKeyStroke(KeyEvent.VK_O, ActionEvent.CTRL_MASK));
075 putValue(SMALL_ICON, new ImageIcon(CleanSheets.class.getResource("res/img/open.gif")));
076 }
077
078 public void actionPerformed(ActionEvent event) {
079 File file = getFile();
080 if (file != null) {
081 Workbook workbook = app.getWorkbook(file);
082 if (workbook == null)
083 try {
084 // Opens the file
085 app.load(file);
086 } catch (FileNotFoundException fe) {
087 showErrorDialog("The file you requested was not found.");
088 } catch (ClassNotFoundException e) {
089 showErrorDialog("The class of a serialized object cannot be found:\n" + e.getMessage() + ".");
090 } catch (InvalidClassException e) {
091 showErrorDialog("Something is wrong with a class used by serialization.");
092 } catch (StreamCorruptedException e) {
093 showErrorDialog("Control information in the input stream is inconsistent.");
094 } catch (OptionalDataException e) {
095 showErrorDialog("Primitive data was found in the input stream instead of objects.");
096 } catch (Exception e) {
097 showErrorDialog("An I/O error occurred when loading the file.");
098 }
099 else
100 uiController.setActiveWorkbook(workbook);
101 }
102 }
103
104 /**
105 * Returns the file to open.
106 * @return file the file to open
107 */
108 public File getFile() {
109 return chooser.getFileToOpen();
110 }
111 }