AbstractCommand *NodeElement::changeParentCommand(const Id &newParent, const QPointF &position) const
{
EditorViewScene *evScene = dynamic_cast<EditorViewScene *>(scene());
Element *oldParentElem = dynamic_cast<Element *>(parentItem());
const Id oldParent = oldParentElem ? oldParentElem->id() : evScene->rootItemId();
if (oldParent == newParent) {
return nullptr;
}
const QPointF oldPos = mResizeCommand ? mResizeCommand->geometryBeforeDrag().topLeft() : mPos;
const QPointF oldScenePos = oldParentElem ? oldParentElem->mapToScene(oldPos) : oldPos;
// Without pre-translating into new position parent gets wrong child coords
// when redo happens and resizes when he doesn`t need it.
// So we mush pre-translate child into new scene position first, but when
// it lays in some container it also resizes. So we need to change parent to
// root, then translate into a new position and change parent to a new one.
// Also that element itself doesn`t change position in change parent command
// so using translation command
ChangeParentCommand *changeParentToSceneCommand =
new ChangeParentCommand(mLogicalAssistApi, mGraphicalAssistApi, false
, id(), oldParent, evScene->rootItemId(), oldPos, oldScenePos);
AbstractCommand *translateCommand = ResizeCommand::create(this, mContents
, position, mContents, oldScenePos);
ChangeParentCommand *result = new ChangeParentCommand(
mLogicalAssistApi, mGraphicalAssistApi, false
, id(), evScene->rootItemId(), newParent, position, position);
result->addPreAction(changeParentToSceneCommand);
result->addPreAction(translateCommand);
return result;
}
void NodeElement::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
if (dynamic_cast<NodeElement *>(scene()->mouseGrabberItem()) == this) {
ungrabMouse();
}
if (event->button() == Qt::RightButton) {
event->accept();
return;
}
deleteGuides();
storeGeometry();
if (scene() && (scene()->selectedItems().size() == 1) && isSelected()) {
setVisibleEmbeddedLinkers(true);
}
if (mDragState == None) {
Element::mouseReleaseEvent(event);
}
EditorViewScene *evScene = dynamic_cast<EditorViewScene *>(scene());
commands::InsertIntoEdgeCommand *insertCommand = new commands::InsertIntoEdgeCommand(
*evScene, mModels, id(), id(), Id::rootId(), event->scenePos(), boundingRect().bottomRight(), false);
bool shouldProcessResize = true;
// we should use mHighlightedNode to determine if there is a highlighted node
// insert current element into them and set mHighlightedNode to nullptr
// but because of mouseRelease twice triggering we can't do it
// This may cause more bugs
if (flags() & ItemIsMovable) {
if (mHighlightedNode) {
NodeElement *newParent = mHighlightedNode;
Element *insertBefore = mHighlightedNode->getPlaceholderNextElement();
mHighlightedNode->erasePlaceholder(false);
// commented because of bug with double event sending (see #204)
// mHighlightedNode = nullptr;
QPointF newPos = mapToItem(newParent, mapFromScene(scenePos()));
AbstractCommand *parentCommand = changeParentCommand(newParent->id(), newPos);
mController->execute(parentCommand);
// Position change already processed in change parent command
shouldProcessResize = parentCommand == nullptr;
setPos(newPos);
if (insertBefore) {
mGraphicalAssistApi.stackBefore(id(), insertBefore->id());
}
newParent->resize();
while (newParent) {
newParent->mContents = newParent->mContents.normalized();
newParent->storeGeometry();
newParent = dynamic_cast<NodeElement*>(newParent->parentItem());
}
} else {
AbstractCommand *parentCommand = changeParentCommand(evScene->rootItemId(), scenePos());
mController->execute(parentCommand);
// Position change already processed in change parent command
shouldProcessResize = parentCommand == nullptr;
}
}
for (EdgeElement* edge : mEdgeList) {
edge->layOut();
if (SettingsManager::value("ActivateGrid").toBool()) {
edge->alignToGrid();
}
}
if (shouldProcessResize && mResizeCommand) {
mResizeCommand->addPostAction(insertCommand);
endResize();
}
updateBySelection();
mDragState = None;
}