//virtual
QVariant AbstractGroupItem::itemChange(GraphicsItemChange change, const QVariant &value)
{
if (change == ItemPositionChange && scene()) {
// calculate new position.
const int trackHeight = KdenliveSettings::trackheight();
QPointF start = sceneBoundingRect().topLeft();
QPointF newPos = value.toPointF();
//kDebug()<<"REAL:"<<start.x()<<", PROPOSED:"<<(int)(start.x() - pos().x() + newPos.x());
int xpos = projectScene()->getSnapPointForPos((int)(start.x() + newPos.x() - pos().x()), KdenliveSettings::snaptopoints());
xpos = qMax(xpos, 0);
//kDebug()<<"GRP XPOS:"<<xpos<<", START:"<<start.x()<<",NEW:"<<newPos.x()<<"; SCENE:"<<scenePos().x()<<",POS:"<<pos().x();
newPos.setX((int)(pos().x() + xpos - (int) start.x()));
//int startTrack = (start.y() + trackHeight / 2) / trackHeight;
int realTrack = (start.y() + newPos.y() - pos().y()) / trackHeight;
int proposedTrack = newPos.y() / trackHeight;
int correctedTrack = qMin(realTrack, projectScene()->tracksCount() - (int)(boundingRect().height() + 5) / trackHeight);
correctedTrack = qMax(correctedTrack, 0);
proposedTrack += (correctedTrack - realTrack);
// Check if top item is a clip or a transition
int offset = 0;
int topTrack = -1;
QList<QGraphicsItem *> children = childItems();
for (int i = 0; i < children.count(); i++) {
int currentTrack = (int)(children.at(i)->scenePos().y() / trackHeight);
if (children.at(i)->type() == AVWIDGET) {
if (topTrack == -1 || currentTrack <= topTrack) {
offset = 0;
topTrack = currentTrack;
}
} else if (children.at(i)->type() == TRANSITIONWIDGET) {
if (topTrack == -1 || currentTrack < topTrack) {
offset = (int)(trackHeight / 3 * 2 - 1);
topTrack = currentTrack;
}
}
}
newPos.setY((int)((proposedTrack) * trackHeight) + offset);
//if (newPos == start) return start;
/*if (newPos.x() < 0) {
// If group goes below 0, adjust position to 0
return QPointF(pos().x() - start.x(), pos().y());
}*/
QPainterPath shape = groupShape(newPos - pos());
QList<QGraphicsItem*> collindingItems = scene()->items(shape, Qt::IntersectsItemShape);
for (int i = 0; i < children.count(); i++) {
collindingItems.removeAll(children.at(i));
}
if (collindingItems.isEmpty()) return newPos;
else {
bool forwardMove = xpos > start.x();
int offset = 0;
for (int i = 0; i < collindingItems.count(); i++) {
QGraphicsItem *collision = collindingItems.at(i);
if (collision->type() == AVWIDGET) {
// Collision
//kDebug()<<"// COLLISION WIT:"<<collision->sceneBoundingRect();
if (newPos.y() != pos().y()) {
// Track change results in collision, restore original position
return pos();
}
AbstractClipItem *item = static_cast <AbstractClipItem *>(collision);
if (forwardMove) {
// Moving forward, determine best pos
QPainterPath clipPath;
clipPath.addRect(item->sceneBoundingRect());
QPainterPath res = shape.intersected(clipPath);
offset = qMax(offset, (int)(res.boundingRect().width() + 0.5));
} else {
// Moving backward, determine best pos
QPainterPath clipPath;
clipPath.addRect(item->sceneBoundingRect());
QPainterPath res = shape.intersected(clipPath);
offset = qMax(offset, (int)(res.boundingRect().width() + 0.5));
}
}
}
if (offset > 0) {
if (forwardMove) {
newPos.setX(newPos.x() - offset);
} else {
newPos.setX(newPos.x() + offset);
}
// If there is still a collision after our position adjust, restore original pos
collindingItems = scene()->items(groupShape(newPos - pos()), Qt::IntersectsItemShape);
for (int i = 0; i < children.count(); i++) {
collindingItems.removeAll(children.at(i));
}
for (int i = 0; i < collindingItems.count(); i++)
if (collindingItems.at(i)->type() == AVWIDGET) return pos();
}
return newPos;
}
}
return QGraphicsItemGroup::itemChange(change, value);
}
//virtual
QVariant AbstractGroupItem::itemChange(GraphicsItemChange change, const QVariant &value)
{
if (change == QGraphicsItem::ItemSelectedChange) {
if (value.toBool()) setZValue(3);
else setZValue(1);
}
CustomTrackScene *scene = NULL;
if (change == ItemPositionChange && parentItem() == 0) {
scene = projectScene();
}
if (scene) {
// calculate new position.
if (scene->isZooming) {
// For some reason, mouse wheel on selected itm sometimes triggered
// a position change event corrupting timeline, so discard it
return pos();
}
// calculate new position.
const int trackHeight = KdenliveSettings::trackheight();
QPointF start = sceneBoundingRect().topLeft();
QPointF newPos = value.toPointF();
int xpos = projectScene()->getSnapPointForPos((int)(start.x() + newPos.x() - pos().x()), KdenliveSettings::snaptopoints());
xpos = qMax(xpos, 0);
////qDebug()<<"GRP XPOS:"<<xpos<<", START:"<<start.x()<<",NEW:"<<newPos.x()<<"; SCENE:"<<scenePos().x()<<",POS:"<<pos().x();
newPos.setX((int)(pos().x() + xpos - (int) start.x()));
QStringList lockedTracks = property("locked_tracks").toStringList();
int proposedTrack = trackForPos(property("y_absolute").toInt() + newPos.y());
// Check if top item is a clip or a transition
int offset = 0;
int topTrack = -1;
QList<int> groupTracks;
QList<QGraphicsItem *> children = childItems();
for (int i = 0; i < children.count(); ++i) {
int currentTrack = 0;
if (children.at(i)->type() == AVWidget || children.at(i)->type() == TransitionWidget) {
currentTrack = static_cast <AbstractClipItem*> (children.at(i))->track();
if (!groupTracks.contains(currentTrack)) groupTracks.append(currentTrack);
}
else if (children.at(i)->type() == GroupWidget) {
currentTrack = static_cast <AbstractGroupItem*> (children.at(i))->track();
}
else continue;
if (children.at(i)->type() == AVWidget) {
if (topTrack == -1 || currentTrack >= topTrack) {
offset = 0;
topTrack = currentTrack;
}
} else if (children.at(i)->type() == TransitionWidget) {
if (topTrack == -1 || currentTrack > topTrack) {
offset = (int)(trackHeight / 3 * 2 - 1);
topTrack = currentTrack;
}
} else if (children.at(i)->type() == GroupWidget) {
QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
bool clipGroup = false;
for (int j = 0; j < subchildren.count(); ++j) {
if (subchildren.at(j)->type() == AVWidget || subchildren.at(j)->type() == TransitionWidget) {
int subTrack = static_cast <AbstractClipItem*> (subchildren.at(j))->track();
if (!groupTracks.contains(subTrack)) groupTracks.append(subTrack);
clipGroup = true;
}
}
if (clipGroup) {
if (topTrack == -1 || currentTrack >= topTrack) {
offset = 0;
topTrack = currentTrack;
}
} else {
if (topTrack == -1 || currentTrack > topTrack) {
offset = (int)(trackHeight / 3 * 2 - 1);
topTrack = currentTrack;
}
}
}
}
// Check no clip in the group goes outside of existing tracks
int maximumTrack = projectScene()->tracksCount();
int groupHeight = 0;
for (int i = 0; i < groupTracks.count(); ++i) {
int offset = groupTracks.at(i) - topTrack;
if (offset > groupHeight) groupHeight = offset;
}
maximumTrack -= groupHeight;
proposedTrack = qMin(proposedTrack, maximumTrack);
proposedTrack = qMax(proposedTrack, groupTracks.count());
int groupOffset = proposedTrack - topTrack;
if (!lockedTracks.isEmpty()) {
for (int i = 0; i < groupTracks.count(); ++i) {
if (lockedTracks.contains(QString::number(groupTracks.at(i) + groupOffset))) {
return pos();
}
}
}
newPos.setY(posForTrack(proposedTrack) + offset);
//if (newPos == start) return start;
/*if (newPos.x() < 0) {
// If group goes below 0, adjust position to 0
return QPointF(pos().x() - start.x(), pos().y());
}*/
QList<QGraphicsItem*> collidingItems;
QPainterPath shape;
if (projectScene()->editMode() == NormalEdit) {
shape = clipGroupShape(newPos - pos());
collidingItems = scene->items(shape, Qt::IntersectsItemShape);
collidingItems.removeAll(this);
for (int i = 0; i < children.count(); ++i) {
if (children.at(i)->type() == GroupWidget) {
QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
for (int j = 0; j < subchildren.count(); ++j) {
collidingItems.removeAll(subchildren.at(j));
}
}
collidingItems.removeAll(children.at(i));
}
}
if (!collidingItems.isEmpty()) {
bool forwardMove = xpos > start.x();
int offset = 0;
for (int i = 0; i < collidingItems.count(); ++i) {
QGraphicsItem *collision = collidingItems.at(i);
if (collision->type() == AVWidget) {
// Collision
if (newPos.y() != pos().y()) {
// Track change results in collision, restore original position
return pos();
}
AbstractClipItem *item = static_cast <AbstractClipItem *>(collision);
// Determine best pos
QPainterPath clipPath;
clipPath.addRect(item->sceneBoundingRect());
QPainterPath res = shape.intersected(clipPath);
offset = qMax(offset, (int)(res.boundingRect().width() + 0.5));
}
}
if (offset > 0) {
if (forwardMove) {
newPos.setX(newPos.x() - offset);
} else {
newPos.setX(newPos.x() + offset);
}
// If there is still a collision after our position adjust, restore original pos
collidingItems = scene->items(clipGroupShape(newPos - pos()), Qt::IntersectsItemShape);
collidingItems.removeAll(this);
for (int i = 0; i < children.count(); ++i) {
if (children.at(i)->type() == GroupWidget) {
QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
for (int j = 0; j < subchildren.count(); ++j) {
collidingItems.removeAll(subchildren.at(j));
}
}
collidingItems.removeAll(children.at(i));
}
for (int i = 0; i < collidingItems.count(); ++i)
if (collidingItems.at(i)->type() == AVWidget) return pos();
}
}
if (projectScene()->editMode() == NormalEdit) {
shape = transitionGroupShape(newPos - pos());
collidingItems = scene->items(shape, Qt::IntersectsItemShape);
collidingItems.removeAll(this);
for (int i = 0; i < children.count(); ++i) {
if (children.at(i)->type() == GroupWidget) {
QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
for (int j = 0; j < subchildren.count(); ++j) {
collidingItems.removeAll(subchildren.at(j));
}
}
collidingItems.removeAll(children.at(i));
}
}
if (collidingItems.isEmpty()) return newPos;
else {
bool forwardMove = xpos > start.x();
int offset = 0;
for (int i = 0; i < collidingItems.count(); ++i) {
QGraphicsItem *collision = collidingItems.at(i);
if (collision->type() == TransitionWidget) {
// Collision
if (newPos.y() != pos().y()) {
// Track change results in collision, restore original position
return pos();
}
AbstractClipItem *item = static_cast <AbstractClipItem *>(collision);
// Determine best pos
QPainterPath clipPath;
clipPath.addRect(item->sceneBoundingRect());
QPainterPath res = shape.intersected(clipPath);
offset = qMax(offset, (int)(res.boundingRect().width() + 0.5));
}
}
if (offset > 0) {
if (forwardMove) {
newPos.setX(newPos.x() - offset);
} else {
newPos.setX(newPos.x() + offset);
}
// If there is still a collision after our position adjust, restore original pos
collidingItems = scene->items(transitionGroupShape(newPos - pos()), Qt::IntersectsItemShape);
for (int i = 0; i < children.count(); ++i) {
collidingItems.removeAll(children.at(i));
}
for (int i = 0; i < collidingItems.count(); ++i)
if (collidingItems.at(i)->type() == TransitionWidget) return pos();
}
}
return newPos;
}
return QGraphicsItemGroup::itemChange(change, value);
}