1 | |
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2 | package de.ugoe.cs.tasktree.keyboardmaps; |
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3 | |
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4 | import java.util.ArrayList; |
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5 | import java.util.HashMap; |
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6 | import java.util.List; |
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7 | import java.util.Map; |
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8 | import java.util.logging.Level; |
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9 | |
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10 | import de.ugoe.cs.util.console.Console; |
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11 | |
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12 | /** |
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13 | * <p> |
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14 | * Helper class to handle synonymous {@link VirtualKey}s. |
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15 | * </p> |
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16 | * |
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17 | * @version 1.0 |
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18 | * @author Patrick Harms |
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19 | */ |
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20 | class VirtualKeySynonyms { |
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21 | |
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22 | /** |
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23 | * <p> |
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24 | * Map of synonymous keys. |
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25 | * </p> |
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26 | */ |
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27 | private Map<Integer, List<VirtualKey>> synonyms = new HashMap<Integer, List<VirtualKey>>(); |
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28 | |
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29 | /** |
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30 | * <p> |
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31 | * Mapping of {@link VirtualKey}s to integer Ids. |
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32 | * </p> |
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33 | */ |
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34 | private Map<VirtualKey, Integer> keyIds = new HashMap<VirtualKey, Integer>(); |
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35 | |
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36 | /** |
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37 | * <p> |
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38 | * Adds a new synonymous key. |
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39 | * </p> |
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40 | * |
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41 | * @param keyId |
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42 | * id of the synonym |
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43 | * @param virtualKey |
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44 | * the synonym |
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45 | */ |
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46 | public void add(int keyId, VirtualKey virtualKey) { |
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47 | List<VirtualKey> synonymList = synonyms.get(keyId); |
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48 | |
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49 | if (synonymList == null) { |
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50 | synonymList = new ArrayList<VirtualKey>(); |
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51 | synonyms.put(keyId, synonymList); |
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52 | } |
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53 | |
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54 | if (!synonymList.contains(virtualKey)) { |
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55 | // ensure that the latest determined virtual keys are considered first |
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56 | synonymList.add(0, virtualKey); |
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57 | } |
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58 | |
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59 | Integer existingKeyId = keyIds.get(virtualKey); |
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60 | |
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61 | if ((existingKeyId != null) && (existingKeyId != keyId)) { |
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62 | Console.traceln(Level.FINEST, "virtual key " + virtualKey + " is mapped to more " + |
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63 | "than one key id (current is " + existingKeyId + ", new is " + keyId + |
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64 | "). New key id will be used (" + keyId + ")."); |
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65 | } |
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66 | |
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67 | keyIds.put(virtualKey, keyId); |
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68 | } |
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69 | |
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70 | /** |
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71 | * <p> |
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72 | * Returns whether a key is contained in the set of synonyms. |
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73 | * </p> |
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74 | * |
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75 | * @param keyId |
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76 | * id of the key |
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77 | * @return true, if the key is contained; false otherwise |
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78 | */ |
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79 | public boolean containsKey(int keyId) { |
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80 | return synonyms.containsKey(keyId); |
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81 | } |
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82 | |
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83 | /** |
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84 | * <p> |
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85 | * Returns all synonyms known for a given key. |
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86 | * </p> |
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87 | * |
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88 | * @param keyId |
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89 | * the id of the key |
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90 | * @return the synonyms |
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91 | */ |
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92 | public VirtualKey[] getVirtualKeySynonyms(int keyId) { |
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93 | List<VirtualKey> virtualKeys = synonyms.get(keyId); |
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94 | if (virtualKeys != null) { |
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95 | return virtualKeys.toArray(new VirtualKey[virtualKeys.size()]); |
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96 | } |
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97 | else { |
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98 | Console.traceln(Level.WARNING, "no virtual key define for key id " + keyId); |
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99 | return null; |
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100 | } |
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101 | } |
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102 | |
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103 | } |
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