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reading sublists are now sortable using Drag&Drop

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This commit is contained in:
Luis Ángel San Martín
2015-01-18 20:36:19 +01:00
parent e0b6581003
commit 400acb077e
10 changed files with 182 additions and 20 deletions
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131
YACReaderLibrary/db/reading_list_model.cpp
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@ -114,7 +114,10 @@ Qt::ItemFlags ReadingListModel::flags(const QModelIndex &index) const
if(typeid(*item) == typeid(ReadingListSeparatorItem))
return 0;
return Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsDropEnabled | Qt::ItemIsDragEnabled;
if(typeid(*item) == typeid(ReadingListItem) && static_cast<ReadingListItem *>(item)->parent->getId()!=0)
return Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsDropEnabled | Qt::ItemIsDragEnabled; //only sublists are dragable
return Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsDropEnabled;
}
QVariant ReadingListModel::headerData(int section, Qt::Orientation orientation, int role) const
@ -183,7 +186,7 @@ QModelIndex ReadingListModel::parent(const QModelIndex &index) const
ReadingListItem * childItem = static_cast<ReadingListItem*>(index.internalPointer());
ReadingListItem * parent = childItem->parent;
if(parent->getId() != 0)
return createIndex(parent->row(), 0, parent);
return createIndex(parent->row()+specialLists.count()+labels.count()+2, 0, parent);
}
return QModelIndex();
@ -208,13 +211,39 @@ bool ReadingListModel::canDropMimeData(const QMimeData *data, Qt::DropAction act
return false;
}
return data->formats().contains(YACReader::YACReaderLibrarComiscSelectionMimeDataFormat);
if(data->formats().contains(YACReader::YACReaderLibrarComiscSelectionMimeDataFormat))
return true;
if(rowIsReadingList(row,parent))// TODO avoid droping in a different parent
if(!parent.isValid())
return false;
else
{
QList<QPair<int,int> > sublistsRows;
QByteArray rawData = data->data(YACReader::YACReaderLibrarSubReadingListMimeDataFormat);
QDataStream in(&rawData,QIODevice::ReadOnly);
in >> sublistsRows; //deserialize the list of indentifiers
if(parent.row()!= sublistsRows.at(0).second)
return false;
return data->formats().contains(YACReader::YACReaderLibrarSubReadingListMimeDataFormat);
}
return false;
}
bool ReadingListModel::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent)
{
QLOG_DEBUG() << "drop mimedata into row = " << row << " column = " << column << "parent" << parent;
if(data->formats().contains(YACReader::YACReaderLibrarComiscSelectionMimeDataFormat))
return dropComics(data, action, row, column, parent);
if(data->formats().contains(YACReader::YACReaderLibrarSubReadingListMimeDataFormat))
return dropSublist(data, action, row, column, parent);
}
bool ReadingListModel::dropComics(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent)
{
QList<qulonglong> comicIds;
QByteArray rawData = data->data(YACReader::YACReaderLibrarComiscSelectionMimeDataFormat);
QDataStream in(&rawData,QIODevice::ReadOnly);
@ -258,6 +287,71 @@ bool ReadingListModel::dropMimeData(const QMimeData *data, Qt::DropAction action
return false;
}
bool ReadingListModel::dropSublist(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent)
{
QList<QPair<int,int> > sublistsRows;
QByteArray rawData = data->data(YACReader::YACReaderLibrarSubReadingListMimeDataFormat);
QDataStream in(&rawData,QIODevice::ReadOnly);
in >> sublistsRows; //deserialize the list of indentifiers
QLOG_DEBUG() << "dropped : " << sublistsRows;
int sourceRow = sublistsRows.at(0).first;
int destRow = row;
QModelIndex destParent = parent;
if(row == -1)
{
QLOG_DEBUG() << "droping inside parent";
destRow = parent.row();
destParent = parent.parent();
}
QLOG_DEBUG() << "move " << sourceRow << "-" << destRow;
if(sourceRow == destRow)
return false;
//beginMoveRows(destParent,sourceRow,sourceRow,destParent,destRow);
ReadingListItem * parentItem = static_cast<ReadingListItem *>(destParent.internalPointer());
ReadingListItem * child = parentItem->child(sourceRow);
parentItem->removeChild(child);
parentItem->appendChild(child,destRow);
reorderingChildren(parentItem->children());
//endMoveRows();
return true;
}
QMimeData *ReadingListModel::mimeData(const QModelIndexList &indexes) const
{
QLOG_DEBUG() << "mimeData requested" << indexes;
if(indexes.length() == 0)
{
QLOG_ERROR() << "mimeData requested: indexes is empty";
return new QMimeData();//TODO what happens if 0 is returned?
}
if(indexes.length() > 1)
QLOG_DEBUG() << "mimeData requested for more than one index, this shouldn't be possible";
QModelIndex modelIndex = indexes.at(0);
QList<QPair<int,int> > rows;
rows << QPair<int,int>(modelIndex.row(),modelIndex.parent().row());
QLOG_DEBUG() << "mimeData requested for row : " << modelIndex.row();
QByteArray data;
QDataStream out(&data,QIODevice::WriteOnly);
out << rows; //serialize the list of identifiers
QMimeData * mimeData = new QMimeData();
mimeData->setData(YACReader::YACReaderLibrarSubReadingListMimeDataFormat, data);
return mimeData;
}
void ReadingListModel::setupReadingListsData(QString path)
{
beginResetModel();
@ -331,17 +425,16 @@ void ReadingListModel::addReadingListAt(const QString &name, const QModelIndex &
beginInsertRows(mi, 0, 0); //TODO calculate the right coordinates before inserting
qulonglong id = DBHelper::insertReadingSubList(name,mi.data(IDRole).toULongLong(),db);
ReadingListItem * newItem;
ReadingListItem * readingListParent = static_cast<ReadingListItem*>(mi.internalPointer());
qulonglong id = DBHelper::insertReadingSubList(name,mi.data(IDRole).toULongLong(),readingListParent->childCount(),db);
ReadingListItem * newItem;
readingListParent->appendChild(newItem = new ReadingListItem(QList<QVariant>()
<< name
<< id
<< false
<< true
<< mi.data(IDRole).toULongLong()));
<< readingListParent->childCount()));
items.insert(id, newItem);
@ -430,6 +523,7 @@ void ReadingListModel::deleteItem(const QModelIndex &mi)
{
if(isEditable(mi))
{
QLOG_DEBUG() << "parent row :" << mi.parent().data() << "-" << mi.row();
beginRemoveRows(mi.parent(),mi.row(),mi.row());
QSqlDatabase db = DataBaseManagement::loadDatabase(_databasePath);
@ -439,8 +533,15 @@ void ReadingListModel::deleteItem(const QModelIndex &mi)
if(typeid(*item) == typeid(ReadingListItem))
{
ReadingListItem * rli = static_cast<ReadingListItem*>(item);
QLOG_DEBUG() << "num children : " << rli->parent->childCount();
rli->parent->removeChild(rli);
QLOG_DEBUG() << "num children : " << rli->parent->childCount();
DBHelper::removeListFromDB(item->getId(), db);
if(rli->parent->getId()!=0)
{
reorderingChildren(rli->parent->children());
}
QLOG_DEBUG() << "num children : " << rli->parent->childCount();
}
else if(typeid(*item) == typeid(LabelItem))
{
@ -607,6 +708,20 @@ int ReadingListModel::addLabelIntoList(LabelItem *item)
return 0;
}
void ReadingListModel::reorderingChildren(QList<ReadingListItem *> children)
{
QList<qulonglong> childrenIds;
int i = 0;
foreach (ReadingListItem * item, children) {
item->setOrdering(i++);
childrenIds << item->getId();
}
QSqlDatabase db = DataBaseManagement::loadDatabase(_databasePath);
DBHelper::reasignOrderToSublists(childrenIds, db);
QSqlDatabase::removeDatabase(_databasePath);
}
bool ReadingListModel::rowIsSpecialList(int row, const QModelIndex &parent) const
{
if(parent.isValid())