private void scroll(boolean leftScrolled) {
JMRevision revision;
FilePanel fp1;
FilePanel fp2;
int line;
revision = diffPanel.getCurrentRevision();
if (revision == null) {
return;
}
if (leftScrolled) {
fp1 = filePanelLeft;
fp2 = filePanelRight;
} else {
fp1 = filePanelRight;
fp2 = filePanelLeft;
}
line = getCurrentLineCenter(fp1);
if (leftScrolled) {
line = DiffUtil.getRevisedLine(revision, line);
} else {
line = DiffUtil.getOriginalLine(revision, line);
}
scrollToLine(fp2, line);
}
void toNextDelta(boolean next) {
int line;
JMRevision revision;
JMDelta previousDelta;
JMDelta currentDelta;
JMDelta nextDelta;
JMDelta toDelta;
JMChunk original;
int currentIndex;
int nextIndex;
List<JMDelta> deltas;
int i;
revision = diffPanel.getCurrentRevision();
if (revision == null) {
return;
}
deltas = revision.getDeltas();
line = getCurrentLineCenter(filePanelLeft);
currentDelta = null;
currentIndex = -1;
i = 0;
for (JMDelta delta : deltas) {
original = delta.getOriginal();
currentIndex = i;
i++;
if (line >= original.getAnchor()) {
if (line <= original.getAnchor() + original.getSize()) {
currentDelta = delta;
break;
}
} else {
break;
}
}
previousDelta = null;
nextDelta = null;
if (currentIndex != -1) {
if (currentIndex > 0) {
previousDelta = deltas.get(currentIndex - 1);
}
nextIndex = currentIndex;
if (currentDelta != null) {
nextIndex++;
}
if (nextIndex < deltas.size()) {
nextDelta = deltas.get(nextIndex);
}
}
if (next) {
toDelta = nextDelta;
} else {
toDelta = previousDelta;
}
if (toDelta != null) {
scrollToLine(filePanelLeft, toDelta.getOriginal().getAnchor());
scroll(true);
}
}