1 | /**
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2 | *#########################################################################
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3 | *
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4 | * A component of the Gatherer application, part of the Greenstone digital
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5 | * library suite from the New Zealand Digital Library Project at the
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6 | * University of Waikato, New Zealand.
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7 | *
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8 | * Author: Matthew Whyte, Greenstone Digital Library, University of Waikato
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9 | *
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10 | * Copyright (C) 1999 New Zealand Digital Library Project
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11 | *
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12 | * This program is free software; you can redistribute it and/or modify
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13 | * it under the terms of the GNU General Public License as published by
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14 | * the Free Software Foundation; either version 2 of the License, or
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15 | * (at your option) any later version.
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16 | *
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17 | * This program is distributed in the hope that it will be useful,
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18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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20 | * GNU General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, write to the Free Software
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24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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25 | *########################################################################
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26 | */
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27 |
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28 | package org.greenstone.gatherer.cdm;
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29 |
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30 | import org.greenstone.gatherer.Gatherer;
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31 | import org.greenstone.gatherer.DebugStream;
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32 | import javax.swing.event.*;
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33 | import java.awt.event.*;
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34 |
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35 | /**
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36 | * This handles events generated by changing design options.
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37 | * The rebuildTypeRequired is updated if the rebuild type associated with this
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38 | * listener requires more 'work' than what is currently set in the {@link CollectionDesignManager}.
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39 | * @author Matthew Whyte
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40 | */
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41 | public class DesignChangeListener implements ActionListener, DocumentListener {
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42 |
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43 | /** The rebuild type required associated with this listener */
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44 | private final int rebuildType;
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45 |
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46 | /** Constructor. Sets the build type required. */
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47 | public DesignChangeListener(int type) {
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48 | rebuildType = type;
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49 | }
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50 |
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51 | public void maybeSetRebuildRequired() {
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52 | if (rebuildType > CollectionDesignManager.getRebuildTypeRequired()) {
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53 | CollectionDesignManager.setRebuildTypeRequired(rebuildType);
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54 | }
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55 | }
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56 |
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57 | /** Gives notification that an event has happened */
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58 | public void actionPerformed(ActionEvent event) {
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59 | //DebugStream.println("ActionEvent in Design from: " + event.getSource());
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60 | maybeSetRebuildRequired();
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61 | }
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62 |
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63 | /** Gives notification that an attribute or set of attributes changed. */
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64 | public void changedUpdate(DocumentEvent e) {
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65 | maybeSetRebuildRequired();
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66 | //DebugStream.println("changedUpdate in Design.");
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67 | }
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68 |
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69 | /** Gives notification that there was an insert into the document. */
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70 | public void insertUpdate(DocumentEvent e) {
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71 | maybeSetRebuildRequired();
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72 | //DebugStream.println("insertUpdate in Design."); //debug
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73 | }
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74 |
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75 | /** Gives notification that a portion of the document has been removed. */
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76 | public void removeUpdate(DocumentEvent e) {
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77 | maybeSetRebuildRequired();
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78 | //DebugStream.println("removeUpdate in Design."); //debug
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79 | }
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80 |
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81 | }
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