// How many measures in a Phrase ?
private double countMeasures(Phrase p) {
double answer = 0.0;
for (int i = 0; i < p.size(); ++i) {
answer = answer + p.getNote(i).getRhythmValue();
}
return answer / p.getNumerator();
}
// Move all notes from one Phrase to another
private void moveAll(Phrase fromPhrase, Phrase toPhrase) {
Note theNote;
while ((fromPhrase.size() > 0)) {
theNote = fromPhrase.getNote(0);
toPhrase.addNote(theNote);
fromPhrase.removeNote(0);
}
}
// zoomIn is called after the parts before and after have
// already been detached from the Phrase. They are
// re-attached when we zoom out
public void zoomIn(Phrase before, Phrase thePhrase, Phrase after) {
phrase = thePhrase;
beforeZoom = before;
afterZoom = after;
beforeZoom.empty();
afterZoom.empty();
setLocation(20, 20);
show();
}
// Zoom in on the selected measures
private void zoom() {
int n = getIntegerValue(startMeasureEdit) - 1;
int m = getIntegerValue(measureCountEdit);
beforeZoom.empty();
afterZoom.empty();
moveMeasures(phrase, beforeZoom, n);
moveAll(phrase, afterZoom);
moveMeasures(afterZoom, phrase, n + m - countMeasures(beforeZoom));
}
// Move measures from the start of one Phrase to another
private void moveMeasures(Phrase fromPhrase, Phrase toPhrase, double nMeasures) {
double beatCount = nMeasures * fromPhrase.getNumerator();
double beatValue;
Note theNote;
while ((beatCount > 0.005) && (fromPhrase.size() > 0)) {
theNote = fromPhrase.getNote(0);
beatValue = theNote.getRhythmValue();
toPhrase.addNote(theNote);
fromPhrase.removeNote(0);
beatCount -= beatValue;
}
}
/**
* Display the jMusic Phrase in a ShowScore window, at the specified x <br>
* and y coordinates, measured in pixels.
*
* @param Phrase
* @param xLoc the left-right location of the window
* @param yLoc the up-down location of the window
*/
public static void sketch(Phrase phr, int xLoc, int yLoc) {
Score s = new Score("Phrase: " + phr.getTitle());
Part p = new Part();
p.addPhrase(phr);
s.addPart(p);
new SketchScore(s, xLoc, yLoc);
}
/**
* Print the jMusic Phrase in standard output
*
* @param Phrase
*/
public static void internal(Phrase phrase) {
System.out.println(phrase.toString());
}
// Recombine before, Phrase and after into longer Phrase
public static void zoomOut(Phrase before, Phrase thePhrase, Phrase after) {
for (int i = 0; i < thePhrase.size(); ++i) {
before.addNote(thePhrase.getNote(i));
}
for (int i = 0; i < after.size(); ++i) {
before.addNote(after.getNote(i));
}
thePhrase.empty();
for (int i = 0; i < before.size(); ++i) {
thePhrase.addNote(before.getNote(i));
}
before.empty();
after.empty();
}
