1 | /**
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2 | * Sort.java
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3 | * Copyright (C) 2010 New Zealand Digital Library, http://expeditee.org
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4 | *
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5 | * This program is free software: you can redistribute it and/or modify
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6 | * it under the terms of the GNU General Public License as published by
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7 | * the Free Software Foundation, either version 3 of the License, or
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8 | * (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 | */
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18 |
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19 | package org.expeditee.agents;
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20 |
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21 | import java.util.ArrayList;
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22 | import java.util.Collection;
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23 | import java.util.Collections;
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24 | import java.util.Comparator;
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25 |
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26 | import org.expeditee.core.Point;
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27 | import org.expeditee.gui.DisplayController;
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28 | import org.expeditee.gui.Frame;
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29 | import org.expeditee.gui.FrameUtils;
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30 | import org.expeditee.items.Text;
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31 |
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32 | public class Sort extends DefaultAgent {
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33 |
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34 | /**
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35 | * Sorts all the text Items on the given Frame alphabetically. The Items are
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36 | * then rearranged to reflect this ordering.
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37 | */
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38 | public Frame process(Frame start) {
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39 | // Check the position of the cursor and only format stuff inside the
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40 | // same box as the cursor
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41 | Collection<Text> itemsToSort = FrameUtils.getCurrentTextItems();
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42 | if (itemsToSort.size() < 1) {
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43 | itemsToSort = start.getBodyTextItems(false);
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44 | }
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45 |
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46 | ArrayList<Text> textItems = new ArrayList<Text>();
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47 | textItems.addAll(itemsToSort);
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48 |
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49 | // copy current positions of items
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50 | ArrayList<Point> positions = new ArrayList<Point>(textItems.size());
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51 |
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52 | for (int i = 0; i < textItems.size(); i++)
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53 | positions.add(i, textItems.get(i).getPosition());
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54 |
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55 | // Sort text items by their strings
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56 | Collections.sort(textItems, new Comparator<Text>() {
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57 | public int compare(Text a, Text b) {
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58 | return String.CASE_INSENSITIVE_ORDER.compare(a.getText(), b
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59 | .getText());
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60 | }
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61 | });
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62 |
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63 | // update positions based on new order
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64 | for (int i = 0; i < positions.size(); i++)
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65 | textItems.get(i)
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66 | .setPosition(positions.get(i).x, positions.get(i).y);
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67 |
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68 | // items will need to be resorted after this
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69 | start.setResort(true);
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70 | DisplayController.requestRefresh(true);
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71 |
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72 | return null;
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73 | }
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74 |
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75 | @Override
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76 | protected void finalise(Frame start) {
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77 | message("Sorting Complete.");
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78 | }
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79 | } |
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