+void RotoWidget::slotPositionChanged(int pos, bool seek)
+{
+ // do not update while the spline is being edited (points are being dragged)
+ if (m_item->editing())
+ return;
+
+ m_keyframeWidget->slotSetPosition(pos, false);
+
+ pos += m_in;
+
+ QList <BPoint> p;
+
+ if (m_data.canConvert(QVariant::Map)) {
+ QMap <QString, QVariant> map = m_data.toMap();
+ QMap <QString, QVariant>::const_iterator i = map.constBegin();
+ int keyframe1, keyframe2;
+ keyframe1 = keyframe2 = i.key().toInt();
+ // find keyframes next to pos
+ while (i.key().toInt() < pos && ++i != map.constEnd()) {
+ keyframe1 = keyframe2;
+ keyframe2 = i.key().toInt();
+ }
+
+ if (keyframe1 != keyframe2 && pos < keyframe2) {
+ /*
+ * in between two keyframes
+ * -> interpolate
+ */
+ QList <BPoint> p1 = getPoints(keyframe1);
+ QList <BPoint> p2 = getPoints(keyframe2);
+ qreal relPos = (pos - keyframe1) / (qreal)(keyframe2 - keyframe1 + 1);
+
+ // additionaly points are ignored (same behavior as MLT filter)
+ int count = qMin(p1.count(), p2.count());
+ for (int i = 0; i < count; ++i) {
+ BPoint bp;
+ for (int j = 0; j < 3; ++j) {
+ if (p1.at(i)[j] != p2.at(i)[j])
+ bp[j] = QLineF(p1.at(i)[j], p2.at(i)[j]).pointAt(relPos);
+ else
+ bp[j] = p1.at(i)[j];
+ }
+ p.append(bp);
+ }
+
+ m_item->setPoints(p);
+ m_item->setEnabled(false);
+ m_scene->setEnabled(false);
+ } else {
+ p = getPoints(keyframe2);
+ // only update if necessary to preserve the current point selection
+ if (p != m_item->getPoints())
+ m_item->setPoints(p);
+ m_item->setEnabled(pos == keyframe2);
+ m_scene->setEnabled(pos == keyframe2);
+ }
+ } else {
+ p = getPoints(-1);
+ // only update if necessary to preserve the current point selection
+ if (p != m_item->getPoints())
+ m_item->setPoints(p);
+ m_item->setEnabled(true);
+ m_scene->setEnabled(true);
+ }
+
+ if (seek)
+ emit seekToPos(pos - m_in);
+}
+
+QList <BPoint> RotoWidget::getPoints(int keyframe)
+{
+ int width = m_monitor->render->frameRenderWidth();
+ int height = m_monitor->render->renderHeight();
+ QList <BPoint> points;
+ QList <QVariant> data;
+ if (keyframe >= 0)
+ data = m_data.toMap()[QString::number(keyframe).rightJustified(log10((double)m_out) + 1, '0')].toList();
+ else
+ data = m_data.toList();
+ foreach (const QVariant &bpoint, data) {
+ QList <QVariant> l = bpoint.toList();
+ BPoint p;
+ for (int i = 0; i < 3; ++i)
+ p[i] = QPointF(l.at(i).toList().at(0).toDouble() * width, l.at(i).toList().at(1).toDouble() * height);
+ points << p;
+ }
+ return points;
+}
+
+void RotoWidget::slotAddKeyframe(int pos)
+{
+ if (!m_data.canConvert(QVariant::Map)) {
+ QVariant data = m_data;
+ QMap<QString, QVariant> map;
+ map[QString::number(m_in).rightJustified(log10((double)m_out) + 1, '0')] = data;
+ m_data = QVariant(map);
+ }
+
+ if (pos < 0)
+ m_keyframeWidget->addKeyframe();
+
+ slotUpdateData(pos);
+ m_item->setEnabled(true);
+ m_scene->setEnabled(true);
+}
+
+void RotoWidget::slotRemoveKeyframe(int pos)
+{
+ if (pos < 0)
+ pos = m_keyframeWidget->getPosition();
+
+ if (!m_data.canConvert(QVariant::Map) || m_data.toMap().count() < 2)
+ return;
+
+ QMap<QString, QVariant> map = m_data.toMap();
+ map.remove(QString::number(pos + m_in).rightJustified(log10((double)m_out) + 1, '0'));
+ m_data = QVariant(map);
+
+ if (m_data.toMap().count() == 1) {
+ // only one keyframe -> switch from map to list again
+ m_data = m_data.toMap().begin().value();
+ }
+
+ slotPositionChanged(m_keyframeWidget->getPosition(), false);
+ emit valueChanged();
+}
+
+void RotoWidget::slotMoveKeyframe(int oldPos, int newPos)
+{
+ if (m_data.canConvert(QVariant::Map)) {
+ QMap<QString, QVariant> map = m_data.toMap();
+ map[QString::number(newPos + m_in).rightJustified(log10((double)m_out) + 1, '0')] = map.take(QString::number(oldPos + m_in).rightJustified(log10((double)m_out) + 1, '0'));
+ m_data = QVariant(map);
+ }
+
+ slotPositionChanged(m_keyframeWidget->getPosition(), false);
+ emit valueChanged();
+}
+
+void RotoWidget::updateTimecodeFormat()
+{
+ m_keyframeWidget->updateTimecodeFormat();
+}
+
+
+
+static QVariant interpolate(int position, int in, int out, QVariant *splineIn, QVariant *splineOut)
+{
+ qreal relPos = (position - in) / (qreal)(out - in + 1);
+ QList<QVariant> keyframe1 = splineIn->toList();
+ QList<QVariant> keyframe2 = splineOut->toList();
+ QList<QVariant> keyframe;
+ int max = qMin(keyframe1.count(), keyframe2.count());
+ for (int i = 0; i < max; ++i) {
+ QList<QVariant> p1 = keyframe1.at(i).toList();
+ QList<QVariant> p2 = keyframe2.at(i).toList();
+ QList<QVariant> p;
+ for (int j = 0; j < 3; ++j) {
+ QPointF middle = QLineF(QPointF(p1.at(j).toList().at(0).toDouble(), p1.at(j).toList().at(1).toDouble()),
+ QPointF(p2.at(j).toList().at(0).toDouble(), p2.at(j).toList().at(1).toDouble())).pointAt(relPos);
+ p.append(QVariant(QList<QVariant>() << QVariant(middle.x()) << QVariant(middle.y())));
+ }
+ keyframe.append(QVariant(p));
+ }
+ return QVariant(keyframe);
+}
+
+bool adjustRotoDuration(QString* data, int in, int out)
+{
+ QJson::Parser parser;
+ bool ok;
+ QVariant splines = parser.parse(data->toUtf8(), &ok);
+ if (!ok) {
+ *data = QString();
+ return true;
+ }
+
+ if (!splines.canConvert(QVariant::Map))
+ return false;
+
+ QMap<QString, QVariant> map = splines.toMap();
+ QMap<QString, QVariant>::iterator i = map.end();
+ int lastPos = -1;
+ QVariant last = QVariant();
+
+ /*
+ * Take care of resize from start
+ */
+ bool startFound = false;
+ while (i-- != map.begin()) {
+ if (i.key().toInt() < in) {
+ if (!startFound) {
+ startFound = true;
+ if (lastPos < 0)
+ map[QString::number(in).rightJustified(log10((double)out) + 1, '0')] = i.value();
+ else
+ map[QString::number(in).rightJustified(log10((double)out) + 1, '0')] = interpolate(in, i.key().toInt(), lastPos, &i.value(), &last);
+ }
+ }
+ lastPos = i.key().toInt();
+ last = i.value();
+ if (startFound)
+ i = map.erase(i);
+ }
+
+ /*
+ * Take care of resize from end
+ */
+ i = map.begin();
+ lastPos = -1;
+ bool endFound = false;
+ while (i != map.end()) {
+ if (i.key().toInt() > out) {
+ if (!endFound) {
+ endFound = true;
+ if (lastPos < 0)
+ map[QString::number(out)] = i.value();
+ else
+ map[QString::number(out)] = interpolate(out, lastPos, i.key().toInt(), &last, &i.value());
+ }
+ }
+ lastPos = i.key().toInt();
+ last = i.value();
+ if (endFound)
+ i = map.erase(i);
+ else
+ ++i;
+ }
+
+ QJson::Serializer serializer;
+ *data = QString(serializer.serialize(QVariant(map)));
+
+ if (startFound || endFound)
+ return true;
+ return false;
+}
+