[315] | 1 | package org.apollo.meldex;
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| 2 |
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| 3 | import java.io.File;
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| 4 | import java.io.FileInputStream;
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| 5 | import java.io.FileOutputStream;
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[1102] | 6 | import java.io.IOException;
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[315] | 7 | import java.util.ArrayList;
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| 8 |
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[1102] | 9 | import org.expeditee.gio.EcosystemManager;
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| 10 |
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[315] | 11 | public class RogTrack
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| 12 | {
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| 13 | // The number of semitones from the key centre
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| 14 | final int nameOffset[] = { 0, 0, 1, 2, 2, 3, 3, 4, 4, 5, 6, 6 };
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| 15 |
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| 16 | // Data about the track (loaded from the file)
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| 17 | private String databaseName = "";
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| 18 | private String songName = "";
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| 19 | private int wholeNoteDivisions = 16;
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| 20 |
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| 21 | // Data representing the track events
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[1102] | 22 | ArrayList<RogTrackEvent> trackData = new ArrayList<RogTrackEvent>();
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[315] | 23 |
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| 24 |
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| 25 | // ---------------------------------------
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| 26 | // WavToRog specific functions
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| 27 | // ---------------------------------------
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| 28 | public RogTrack()
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| 29 | {
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| 30 | }
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| 31 |
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| 32 |
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| 33 | public void addTimeSignature(int numer, int denom)
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| 34 | {
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| 35 | trackData.add(new RogTrackEvent(RogTrackEvent.TIME_SIG_EVENT, numer, denom));
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| 36 | }
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| 37 |
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| 38 |
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| 39 | public void addNote(int noteLength, int notePitch, int key)
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| 40 | {
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| 41 | int noteName = getNoteName(key, notePitch);
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| 42 | trackData.add(new RogTrackEvent(noteLength, noteName, notePitch));
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| 43 | }
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| 44 |
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| 45 |
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| 46 | public void addRest(int restLength)
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| 47 | {
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| 48 | if (restLength > 0) {
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| 49 | trackData.add(new RogTrackEvent(restLength, 0, 0));
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| 50 | }
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| 51 | }
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| 52 |
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| 53 |
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| 54 | public void addKeySignature(int numSharpsFlats, int isMinor)
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| 55 | {
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| 56 | trackData.add(0, new RogTrackEvent(RogTrackEvent.KEY_SIG_EVENT, isMinor, numSharpsFlats));
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| 57 | }
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| 58 |
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| 59 |
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| 60 | public int calculateBestKey()
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| 61 | {
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| 62 | int accidental;
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| 63 | int minAccidental = trackData.size();
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| 64 | int minKey = 0;
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| 65 |
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| 66 | for (int numSharpFlat = 0; numSharpFlat < 8; numSharpFlat++) {
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| 67 | accidental = checkAccidental(numSharpFlat);
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| 68 | if (accidental < minAccidental) {
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| 69 | minAccidental = accidental;
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| 70 | minKey = numSharpFlat;
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| 71 | }
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| 72 |
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| 73 | accidental = checkAccidental(-numSharpFlat);
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| 74 | if (accidental < minAccidental) {
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| 75 | minAccidental = accidental;
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| 76 | minKey = -numSharpFlat;
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| 77 | }
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| 78 | }
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| 79 |
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| 80 | return minKey;
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| 81 | }
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| 82 |
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| 83 |
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| 84 | public int checkAccidental(int key)
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| 85 | {
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| 86 | int sharpsFlats[] = { 0, 0, 0, 0, 0, 0, 0 };
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| 87 | int nameValue[] = { 0, 2, 4, 5, 7, 9, 11 };
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| 88 |
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| 89 | // Calculate the sharps and flats for this key
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| 90 | if (key < 0) {
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| 91 | for (int flatNum = 1; flatNum <= (-key); flatNum++) {
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| 92 | sharpsFlats[((8 + flatNum) * 3) % 7]--;
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| 93 | }
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| 94 | }
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| 95 | else {
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| 96 | for (int sharpNum = 1; sharpNum <= key; sharpNum++) {
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| 97 | sharpsFlats[((sharpNum * 4) + 6) % 7]++;
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| 98 | }
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| 99 | }
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| 100 |
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| 101 | // Iterate through the track
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| 102 | int sumAccidental = 0;
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| 103 | for (int i = 0; i < trackData.size(); i++) {
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| 104 | RogTrackEvent te = (RogTrackEvent) trackData.get(i);
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| 105 |
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| 106 | // Have we found a note??
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| 107 | if (te.type <= RogTrackEvent.LAST_NOTE_EVENT) {
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| 108 | int semitone = te.param2;
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| 109 |
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| 110 | // Calculate the accidental for this key
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| 111 | int noteName = getNoteName(key, semitone);
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| 112 | int numSharpsFlats = (semitone % 12) - nameValue[noteName];
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| 113 |
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| 114 | if (numSharpsFlats < -6) {
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| 115 | numSharpsFlats += 12;
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| 116 | }
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| 117 | if (numSharpsFlats > 6) {
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| 118 | numSharpsFlats -= 12;
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| 119 | }
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| 120 |
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| 121 | if (numSharpsFlats != sharpsFlats[noteName]) {
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| 122 | sumAccidental++;
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| 123 | }
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| 124 | }
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| 125 | }
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| 126 |
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| 127 | return sumAccidental;
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| 128 | }
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| 129 |
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| 130 |
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| 131 | public void setNoteNames(int numSharpsFlats)
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| 132 | {
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| 133 | for (int i = 0; i < trackData.size(); i++) {
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| 134 | RogTrackEvent te = (RogTrackEvent) trackData.get(i);
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| 135 | if (te.type <= RogTrackEvent.LAST_NOTE_EVENT && te.param2 > 0) {
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| 136 | te.param1 = getNoteName(numSharpsFlats, te.param2);
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| 137 | }
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| 138 | }
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| 139 | }
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| 140 |
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| 141 |
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| 142 | public int getNoteName(int key, int notePitch)
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| 143 | {
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| 144 | // Calculate the name of the key
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| 145 | int keyName = (((7 - key) * 3) % 7);
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| 146 |
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| 147 | // Calculate the semitone start position
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| 148 | int keySemitoneStart = (((12 - key) * 5) % 12);
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| 149 |
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| 150 | // Calculate the note name
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| 151 | int noteName = (keyName + nameOffset[(notePitch + 12 - keySemitoneStart) % 12]) % 7;
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| 152 | return noteName;
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| 153 | }
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| 154 |
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| 155 |
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| 156 | public String toString()
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| 157 | {
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| 158 | String str = "song \"" + databaseName + "\" \"" + songName + "\" " + wholeNoteDivisions + "\n";
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| 159 |
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| 160 | // Display each of the TrackEvents in turn
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| 161 | for (int i = 0; i < trackData.size(); i++) {
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| 162 | RogTrackEvent te = (RogTrackEvent) trackData.get(i);
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| 163 |
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| 164 | // Is this a note??
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| 165 | if (te.type <= RogTrackEvent.LAST_NOTE_EVENT) {
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| 166 | char noteName;
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| 167 | if (te.param1 < 5) {
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| 168 | noteName = (char) (te.param1 + 'C');
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| 169 | }
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| 170 | else {
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| 171 | noteName = (char) (te.param1 - 5 + 'A');
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| 172 | }
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| 173 | str = str + te.type + " " + noteName + " " + te.param2 + "\n";
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| 174 | }
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| 175 |
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| 176 | // Is this a time signature??
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| 177 | else if (te.type == RogTrackEvent.TIME_SIG_EVENT) {
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| 178 | str = str + "timesig " + te.param1 + " " + te.param2 + "\n";
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| 179 | }
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| 180 |
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| 181 | // Is this a key signature??
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| 182 | else if (te.type == RogTrackEvent.KEY_SIG_EVENT) {
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| 183 | str = str + "keysig " + te.param1 + " " + te.param2 + "\n";
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| 184 | }
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| 185 |
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| 186 | // Is this a fermata event??
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| 187 | else if (te.type == RogTrackEvent.FERMATA_EVENT) {
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| 188 | str = str + "fermata\n";
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| 189 | }
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| 190 |
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| 191 | // Is this a tempo event??
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| 192 | else if (te.type == RogTrackEvent.TEMPO_EVENT) {
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| 193 | str = str + "tempo " + te.param1 + "\n";
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| 194 | }
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| 195 | }
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| 196 |
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| 197 | // Return the finished string
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| 198 | return str;
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| 199 | }
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| 200 |
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| 201 | public void fromString(String rog_text)
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| 202 | {
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| 203 | int rog_text_len = rog_text.length();
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| 204 | byte[] rog_bytes = rog_text.getBytes();
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| 205 |
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| 206 | parseFile(rog_bytes, rog_text_len);
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| 207 | }
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| 208 |
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| 209 |
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| 210 | /**
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| 211 | *
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| 212 | * @return
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| 213 | * The converted melody. Null if was unable to convert
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| 214 | */
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| 215 | public Melody toMelody()
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| 216 | {
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| 217 | int track_len = trackData.size();
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| 218 |
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[1102] | 219 | ArrayList<RogTrackEvent> filtered_td = new ArrayList<RogTrackEvent>();
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[315] | 220 |
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| 221 | for (int i = 0; i < track_len; i++) {
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| 222 | RogTrackEvent te = (RogTrackEvent) trackData.get(i);
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| 223 |
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| 224 | // Is this a note??
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| 225 | if (te.type <= RogTrackEvent.LAST_NOTE_EVENT) {
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| 226 | filtered_td.add(te);
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| 227 | }
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| 228 | }
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| 229 |
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| 230 | int filtered_track_len = filtered_td.size();
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| 231 |
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| 232 | if (filtered_track_len<1) {
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| 233 | //System.err.println("Insufficient track data for form relative pitch melody");
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| 234 | return null;
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| 235 | }
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| 236 |
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[1102] | 237 | ArrayList<MelodyEvent> me_list = new ArrayList<MelodyEvent>();
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[315] | 238 |
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| 239 | for (int i = 0; i < filtered_track_len-1; i++) {
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| 240 | RogTrackEvent te = (RogTrackEvent) filtered_td.get(i);
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| 241 | RogTrackEvent next_te = (RogTrackEvent) filtered_td.get(i+1);
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| 242 |
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| 243 | int duration = te.type;
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| 244 |
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| 245 | if (next_te.param2 == 0) {
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| 246 | // is a rest
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| 247 | MelodyEvent me = new MelodyEvent(MelodyEvent.REST_EVENT,duration);
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| 248 | me_list.add(me);
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| 249 |
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| 250 | // skip ahead one further position
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| 251 | i++;
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| 252 | continue;
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| 253 | }
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| 254 |
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| 255 | int rel_pitch = next_te.param2 - te.param2;
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| 256 |
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| 257 | MelodyEvent me = new MelodyEvent(rel_pitch,duration);
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| 258 | me_list.add(me);
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| 259 | }
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| 260 |
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| 261 | int me_list_len = me_list.size();
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| 262 |
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| 263 | MelodyEvent[] me_array = new MelodyEvent[me_list_len];
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| 264 | for (int i=0; i<me_list_len; i++) {
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| 265 | me_array[i] = (MelodyEvent)me_list.get(i);
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| 266 | }
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| 267 |
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| 268 | Melody me = new Melody(Melody.RELATIVE_PITCH,me_array);
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| 269 |
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| 270 | return me;
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| 271 | }
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| 272 |
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| 273 |
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| 274 | // ---------------------------------------
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| 275 | // RogToGif specific functions
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| 276 | // ---------------------------------------
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| 277 |
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| 278 | // ----------------------------------------------------------------------------------
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| 279 | // Method : loadFromFile
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| 280 | // Returns : false - if the track could not be successfully loaded
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| 281 | // true - if the track was successfully loaded
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| 282 | // ----------------------------------------------------------------------------------
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| 283 | public boolean loadFromFile(File rogFile)
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| 284 | {
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[1102] | 285 | boolean success = true;
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| 286 | FileInputStream fileIn = null;
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| 287 | try {
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| 288 | // Open the file with a FileInputStream, ready for parsing
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| 289 | fileIn = new FileInputStream(rogFile);
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| 290 |
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| 291 | // Get the number of bytes in the file
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| 292 | int rogLength = fileIn.available();
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| 293 |
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| 294 | // Create a buffer to store the file, and read the file into it
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| 295 | byte[] rogData = new byte[rogLength];
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| 296 | fileIn.read(rogData, 0, rogLength);
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| 297 |
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| 298 | // Parse the .rog file
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| 299 | parseFile(rogData, rogLength);
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| 300 | } catch (Exception ex) {
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| 301 | EcosystemManager.getGraphicsManager().showDialog("Exception", "Exception occurred reading file.\n\n" + ex);
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| 302 | success = false;
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| 303 | } finally {
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| 304 | if (fileIn != null) {
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| 305 | try {
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| 306 | fileIn.close();
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| 307 | } catch (IOException e) {
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| 308 | // If an IO exception occurs when closing the file, just sweep it under the rug
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| 309 | }
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| 310 | }
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| 311 | }
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| 312 |
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| 313 | // File loaded successfully
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| 314 | return success;
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[315] | 315 | }
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| 316 |
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| 317 |
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| 318 | private void parseFile(byte[] rogData, int rogLength)
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| 319 | {
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| 320 | // Break the file up into lines and parse each one seperately
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| 321 | int lineStart = 0;
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| 322 | for (int pos = 0; pos < rogLength; pos++) {
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| 323 | if (rogData[pos] == '\n') {
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| 324 | parseLine(new String(rogData, lineStart, (pos - lineStart)));
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| 325 | lineStart = pos + 1;
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| 326 | }
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| 327 | }
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| 328 | // If the last line is not newline-terminated then we have to parse it now
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| 329 | if (lineStart != rogLength) {
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| 330 | parseLine(new String(rogData, lineStart, (rogLength - lineStart)));
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| 331 | }
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| 332 | }
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| 333 |
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| 334 |
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| 335 | private void parseLine(String line)
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| 336 | {
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| 337 | String sent = null;
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| 338 | String word = nextWord(line, 0);
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| 339 | int parsed = (word.length() + 1);
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| 340 |
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| 341 | if (word.equals("") || word.equals("metadata")) {
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| 342 | // do nothing => ignore it!
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| 343 | }
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| 344 | else if (word.equals("song")) {
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| 345 | // Parse the first parameter - databaseName
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| 346 | sent = nextSentence(line, parsed + 1);
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| 347 | parsed += (sent.length() + 3);
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| 348 | databaseName = sent;
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| 349 |
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| 350 | // Parse the second parameter - songName
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| 351 | sent = nextSentence(line, parsed + 1);
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| 352 | parsed += (sent.length() + 3);
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| 353 | songName = sent;
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| 354 |
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| 355 | // Parse the third parameter - wholeDivision
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| 356 | word = nextWord(line, parsed);
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| 357 | parsed += (word.length() + 1);
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| 358 | wholeNoteDivisions = (int) Double.parseDouble(word);
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| 359 | }
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| 360 |
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| 361 | else if (word.equals("fermata")) {
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| 362 | // Add a fermata event to the track (no parameters)
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| 363 | trackData.add(new RogTrackEvent(RogTrackEvent.FERMATA_EVENT, 0, 0));
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| 364 | }
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| 365 |
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| 366 | else if (word.equals("tempo")) {
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| 367 | // Parse the first parameter - tempoBPM
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| 368 | word = nextWord(line, parsed);
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| 369 | parsed += (word.length() + 1);
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| 370 | int tempoBPM = (int) Double.parseDouble(word);
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| 371 |
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| 372 | // Add a tempo event to the track
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| 373 | trackData.add(new RogTrackEvent(RogTrackEvent.TEMPO_EVENT, tempoBPM, 0));
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| 374 | }
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| 375 |
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| 376 | else if (word.equals("keysig")) {
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| 377 | // Parse the first parameter - isMinor
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| 378 | word = nextWord(line, parsed);
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| 379 | parsed += (word.length() + 1);
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| 380 | int isMinor = (int) Double.parseDouble(word);
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| 381 |
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| 382 | // Parse the second parameter - numSharpsFlats
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| 383 | word = nextWord(line, parsed);
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| 384 | parsed += (word.length() + 1);
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| 385 | int numSharpsFlats = (int) Double.parseDouble(word);
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| 386 |
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| 387 | // Add this key signature event to the track
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| 388 | trackData.add(0, new RogTrackEvent(RogTrackEvent.KEY_SIG_EVENT, isMinor, numSharpsFlats));
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| 389 | }
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| 390 |
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| 391 | else if (word.equals("timesig")) {
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| 392 | // Parse the first parameter - numerator
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| 393 | word = nextWord(line, parsed);
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| 394 | parsed += (word.length() + 1);
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| 395 | int numerator = (int) Double.parseDouble(word);
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| 396 |
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| 397 | // Parse the second parameter - denominator
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| 398 | word = nextWord(line, parsed);
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| 399 | parsed += (word.length() + 1);
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| 400 | int denominator = (int) Double.parseDouble(word);
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| 401 |
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| 402 | // Add this time signature event to the track
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| 403 | trackData.add(new RogTrackEvent(RogTrackEvent.TIME_SIG_EVENT, numerator, denominator));
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| 404 | }
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| 405 |
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| 406 | else {
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| 407 | // This must be a note line, so parse the duration
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| 408 | int duration = (int) Double.parseDouble(word);
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| 409 |
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| 410 | // Parse the first parameter - noteName
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| 411 | word = nextWord(line, parsed);
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| 412 | parsed += (word.length() + 1);
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| 413 | char noteName = word.charAt(0);
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| 414 |
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| 415 | // Check that the noteName is valid
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| 416 | if (noteName < 'A' || noteName > 'G') {
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[1102] | 417 | EcosystemManager.getGraphicsManager().showDialog("Exception", "Parsing error - check that the Rog file is valid.");
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[315] | 418 | return;
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| 419 | }
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| 420 |
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| 421 | // Convert the noteName character into it's MIDI integer equivalent
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| 422 | int noteNum;
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| 423 | if (noteName >= 'C') {
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| 424 | noteNum = noteName - 'C';
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| 425 | }
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| 426 | else {
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| 427 | noteNum = noteName - 'A' + 5;
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| 428 | }
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| 429 |
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| 430 | // Parse the second parameter - pitch
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| 431 | word = nextWord(line, parsed);
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| 432 | parsed += (word.length() + 1);
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| 433 | int pitch = (int) Double.parseDouble(word);
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| 434 |
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| 435 | // Add this note event to the track
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| 436 | trackData.add(new RogTrackEvent(duration, noteNum, pitch));
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| 437 | }
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| 438 | }
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| 439 |
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| 440 |
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| 441 | private String nextSentence(String line, int sentStart)
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| 442 | {
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| 443 | for (int pos = sentStart; pos < line.length(); pos++) {
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| 444 | // We have found a quote mark, so return the sentence found
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| 445 | if (line.charAt(pos) == '"') {
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| 446 | return (new String(line.substring(sentStart, pos)));
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| 447 | }
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| 448 | }
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| 449 | // We have reached the end of the string, so return the remainder
|
---|
| 450 | return (new String(line.substring(sentStart, line.length())));
|
---|
| 451 | }
|
---|
| 452 |
|
---|
| 453 |
|
---|
| 454 | private String nextWord(String line, int wordStart)
|
---|
| 455 | {
|
---|
| 456 | for (int pos = wordStart; pos < line.length(); pos++) {
|
---|
| 457 | // We have found a space, so return the word found
|
---|
| 458 | if (line.charAt(pos) == ' ') {
|
---|
| 459 | return (new String(line.substring(wordStart, pos)));
|
---|
| 460 | }
|
---|
| 461 | }
|
---|
| 462 | // We have reached the end of the string, so return the remainder
|
---|
| 463 | return (new String(line.substring(wordStart, line.length())));
|
---|
| 464 | }
|
---|
| 465 |
|
---|
| 466 |
|
---|
| 467 | public String getDatabaseName()
|
---|
| 468 | {
|
---|
| 469 | return databaseName;
|
---|
| 470 | }
|
---|
| 471 |
|
---|
| 472 |
|
---|
| 473 | public String getSongName()
|
---|
| 474 | {
|
---|
| 475 | return songName;
|
---|
| 476 | }
|
---|
| 477 |
|
---|
| 478 |
|
---|
| 479 | public int getWholeNoteDivisions()
|
---|
| 480 | {
|
---|
| 481 | return wholeNoteDivisions;
|
---|
| 482 | }
|
---|
| 483 |
|
---|
| 484 |
|
---|
| 485 | // ---------------------------------------
|
---|
| 486 | // SymInput specific functions
|
---|
| 487 | // ---------------------------------------
|
---|
| 488 | public void setWholeNoteDivisions(int wnd)
|
---|
| 489 | {
|
---|
| 490 | wholeNoteDivisions = wnd;
|
---|
| 491 | }
|
---|
| 492 |
|
---|
| 493 |
|
---|
| 494 | // ----------------------------------------------------------------------------------
|
---|
| 495 | // Method : saveToFile
|
---|
| 496 | // Returns : false - if the track could not be successfully saved
|
---|
| 497 | // true - if the track was successfully saved
|
---|
| 498 | // ----------------------------------------------------------------------------------
|
---|
| 499 | public boolean saveToFile(File outFile)
|
---|
| 500 | {
|
---|
| 501 | // Convert the track to a string and save it to the specified file
|
---|
| 502 | try {
|
---|
| 503 | FileOutputStream fileOut = new FileOutputStream(outFile);
|
---|
| 504 | fileOut.write(toString().getBytes());
|
---|
| 505 | fileOut.close();
|
---|
| 506 | }
|
---|
| 507 | catch (Exception ex) {
|
---|
[1102] | 508 | EcosystemManager.getGraphicsManager().showDialog("Exception", "Exception occurred writing to file.\n\n" + ex);
|
---|
[315] | 509 | return false;
|
---|
| 510 | }
|
---|
| 511 |
|
---|
| 512 | // File saved successfully
|
---|
| 513 | return true;
|
---|
| 514 | }
|
---|
| 515 | }
|
---|