/***************************************************************************
- * Copyright (C) 2005-08 by the Quassel Project *
+ * Copyright (C) 2005-2015 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include "treemodel.h"
+#include <QCoreApplication>
#include <QDebug>
+#include "quassel.h"
+
+class RemoveChildLaterEvent : public QEvent
+{
+public:
+ RemoveChildLaterEvent(AbstractTreeItem *child) : QEvent(QEvent::User), _child(child) {};
+ inline AbstractTreeItem *child() { return _child; }
+private:
+ AbstractTreeItem *_child;
+};
+
+
/*****************************************
* Abstract Items of a TreeModel
*****************************************/
AbstractTreeItem::AbstractTreeItem(AbstractTreeItem *parent)
- : QObject(parent),
- _flags(Qt::ItemIsSelectable | Qt::ItemIsEnabled)
+ : QObject(parent),
+ _flags(Qt::ItemIsSelectable | Qt::ItemIsEnabled),
+ _treeItemFlags(0)
{
}
-AbstractTreeItem::~AbstractTreeItem() {
-}
-quint64 AbstractTreeItem::id() const {
- return (quint64)this;
+bool AbstractTreeItem::newChild(AbstractTreeItem *item)
+{
+ int newRow = childCount();
+ emit beginAppendChilds(newRow, newRow);
+ _childItems.append(item);
+ emit endAppendChilds();
+ return true;
}
-int AbstractTreeItem::defaultColumn() const {
- // invalid QModelIndexes aka rootNodes get their Childs stuffed into column -1
- // all others to 0
- if(parent() == 0)
- return -1;
- else
- return 0;
-}
-bool AbstractTreeItem::newChild(int column, AbstractTreeItem *item) {
- if(column >= columnCount()) {
- qWarning() << "AbstractTreeItem::newChild() cannot append Child to not existing column!" << this << column;
- return false;
- }
-
- if(!_childItems.contains(column)) {
- _childItems[column] = QList<AbstractTreeItem *>();
- }
+bool AbstractTreeItem::newChilds(const QList<AbstractTreeItem *> &items)
+{
+ if (items.isEmpty())
+ return false;
- int newRow = _childItems[column].count();
- emit beginAppendChilds(column, newRow, newRow);
- _childItems[column].append(item);
- emit endAppendChilds();
-
- return true;
-}
+ int nextRow = childCount();
+ int lastRow = nextRow + items.count() - 1;
-bool AbstractTreeItem::newChild(AbstractTreeItem *item) {
- return newChild(defaultColumn(), item);
+ emit beginAppendChilds(nextRow, lastRow);
+ _childItems << items;
+ emit endAppendChilds();
+
+ return true;
}
-bool AbstractTreeItem::removeChild(int column, int row) {
- if(!_childItems.contains(column) || row >= childCount(column))
- return false;
- emit beginRemoveChilds(column, row, row);
- AbstractTreeItem *treeitem = _childItems[column].takeAt(row);
- treeitem->deleteLater();
- emit endRemoveChilds();
+bool AbstractTreeItem::removeChild(int row)
+{
+ if (row < 0 || childCount() <= row)
+ return false;
- return true;
-}
+ child(row)->removeAllChilds();
+ emit beginRemoveChilds(row, row);
+ AbstractTreeItem *treeitem = _childItems.takeAt(row);
+ delete treeitem;
+ emit endRemoveChilds();
-bool AbstractTreeItem::removeChild(int row) {
- return removeChild(defaultColumn(), row);
+ checkForDeletion();
+
+ return true;
}
-bool AbstractTreeItem::removeChildById(int column, const quint64 &id) {
- if(!_childItems.contains(column))
- return false;
- for(int i = 0; i < _childItems[column].count(); i++) {
- if(_childItems[column][i]->id() == id)
- return removeChild(column, i);
- }
- return false;
-}
+void AbstractTreeItem::removeAllChilds()
+{
+ const int numChilds = childCount();
-bool AbstractTreeItem::removeChildById(const quint64 &id) {
- return removeChildById(defaultColumn(), id);
-}
+ if (numChilds == 0)
+ return;
+
+ AbstractTreeItem *child;
-void AbstractTreeItem::removeAllChilds() {
- AbstractTreeItem *child;
+ QList<AbstractTreeItem *>::iterator childIter;
- QHash<int, QList<AbstractTreeItem *> >::iterator columnIter = _childItems.begin();
- while(columnIter != _childItems.end()) {
- if(columnIter->count() > 0) {
- emit beginRemoveChilds(columnIter.key(), 0, columnIter->count() - 1);
- QList<AbstractTreeItem *>::iterator childIter = columnIter->begin();
- while(childIter != columnIter->end()) {
- child = *childIter;
- // child->removeAllChilds();
- childIter = columnIter->erase(childIter);
- child->deleteLater();
- }
- emit endRemoveChilds();
+ childIter = _childItems.begin();
+ while (childIter != _childItems.end()) {
+ child = *childIter;
+ child->setTreeItemFlags(0); // disable self deletion, as this would only fuck up consitency and the child gets deleted anyways
+ child->removeAllChilds();
+ childIter++;
}
- columnIter++;
- }
-}
-AbstractTreeItem *AbstractTreeItem::child(int column, int row) const {
- if(!_childItems.contains(column) || _childItems[column].size() <= row)
- return 0;
- else
- return _childItems[column].value(row);
-}
+ emit beginRemoveChilds(0, numChilds - 1);
+ childIter = _childItems.begin();
+ while (childIter != _childItems.end()) {
+ child = *childIter;
+ childIter = _childItems.erase(childIter);
+ delete child;
+ }
+ emit endRemoveChilds();
-AbstractTreeItem *AbstractTreeItem::child(int row) const {
- return child(defaultColumn(), row);
+ checkForDeletion();
}
-AbstractTreeItem *AbstractTreeItem::childById(int column, const quint64 &id) const {
- if(!_childItems.contains(column))
- return 0;
- for(int i = 0; i < _childItems[column].count(); i++) {
- if(_childItems[column][i]->id() == id)
- return _childItems[column][i];
- }
- return 0;
+void AbstractTreeItem::removeChildLater(AbstractTreeItem *child)
+{
+ Q_ASSERT(child);
+ QCoreApplication::postEvent(this, new RemoveChildLaterEvent(child));
}
-AbstractTreeItem *AbstractTreeItem::childById(const quint64 &id) const {
- return childById(defaultColumn(), id);
-}
-int AbstractTreeItem::childCount(int column) const {
- if(!_childItems.contains(column))
- return 0;
- else
- return _childItems[column].count();
-}
+void AbstractTreeItem::customEvent(QEvent *event)
+{
+ if (event->type() != QEvent::User)
+ return;
-int AbstractTreeItem::childCount() const {
- return childCount(defaultColumn());
+ event->accept();
+
+ RemoveChildLaterEvent *removeEvent = static_cast<RemoveChildLaterEvent *>(event);
+ int childRow = _childItems.indexOf(removeEvent->child());
+ if (childRow == -1)
+ return;
+
+ // since we are called asynchronously we have to recheck if the item in question still has no childs
+ if (removeEvent->child()->childCount())
+ return;
+
+ removeChild(childRow);
}
-int AbstractTreeItem::column() const {
- if(!parent())
- return -1;
- QHash<int, QList<AbstractTreeItem*> >::const_iterator iter = parent()->_childItems.constBegin();
- while(iter != parent()->_childItems.constEnd()) {
- if(iter->contains(const_cast<AbstractTreeItem *>(this)))
- return iter.key();
- iter++;
- }
+bool AbstractTreeItem::reParent(AbstractTreeItem *newParent)
+{
+ // currently we support only re parenting if the child that's about to be
+ // adopted does not have any children itself.
+ if (childCount() != 0) {
+ qDebug() << "AbstractTreeItem::reParent(): cannot reparent" << this << "with children.";
+ return false;
+ }
+
+ int oldRow = row();
+ if (oldRow == -1)
+ return false;
+
+ emit parent()->beginRemoveChilds(oldRow, oldRow);
+ parent()->_childItems.removeAt(oldRow);
+ emit parent()->endRemoveChilds();
+
+ AbstractTreeItem *oldParent = parent();
+ setParent(newParent);
+
+ bool success = newParent->newChild(this);
+ if (!success)
+ qWarning() << "AbstractTreeItem::reParent(): failed to attach to new parent after removing from old parent! this:" << this << "new parent:" << newParent;
- qWarning() << "AbstractTreeItem::column(): unable to determine the Column of" << this;
- return parent()->defaultColumn();
+ if (oldParent)
+ oldParent->checkForDeletion();
+
+ return success;
}
-int AbstractTreeItem::row() const {
- if(!parent())
- return -1;
- else
- return parent()->_childItems[column()].indexOf(const_cast<AbstractTreeItem *>(this));
+
+AbstractTreeItem *AbstractTreeItem::child(int row) const
+{
+ if (childCount() <= row)
+ return 0;
+ else
+ return _childItems[row];
}
-AbstractTreeItem *AbstractTreeItem::parent() const {
- return qobject_cast<AbstractTreeItem *>(QObject::parent());
+
+int AbstractTreeItem::childCount(int column) const
+{
+ if (column > 0)
+ return 0;
+ else
+ return _childItems.count();
}
-Qt::ItemFlags AbstractTreeItem::flags() const {
- return _flags;
+
+int AbstractTreeItem::row() const
+{
+ if (!parent()) {
+ qWarning() << "AbstractTreeItem::row():" << this << "has no parent AbstractTreeItem as it's parent! parent is" << QObject::parent();
+ return -1;
+ }
+
+ int row_ = parent()->_childItems.indexOf(const_cast<AbstractTreeItem *>(this));
+ if (row_ == -1)
+ qWarning() << "AbstractTreeItem::row():" << this << "is not in the child list of" << QObject::parent();
+ return row_;
}
-void AbstractTreeItem::setFlags(Qt::ItemFlags flags) {
- _flags = flags;
+
+void AbstractTreeItem::dumpChildList()
+{
+ qDebug() << "==== Childlist for Item:" << this << "====";
+ if (childCount() > 0) {
+ AbstractTreeItem *child;
+ QList<AbstractTreeItem *>::const_iterator childIter = _childItems.constBegin();
+ while (childIter != _childItems.constEnd()) {
+ child = *childIter;
+ qDebug() << "Row:" << child->row() << child << child->data(0, Qt::DisplayRole);
+ childIter++;
+ }
+ }
+ qDebug() << "==== End Of Childlist ====";
}
+
/*****************************************
* SimpleTreeItem
*****************************************/
SimpleTreeItem::SimpleTreeItem(const QList<QVariant> &data, AbstractTreeItem *parent)
- : AbstractTreeItem(parent),
+ : AbstractTreeItem(parent),
_itemData(data)
{
}
-SimpleTreeItem::~SimpleTreeItem() {
+
+SimpleTreeItem::~SimpleTreeItem()
+{
}
-QVariant SimpleTreeItem::data(int column, int role) const {
- if(column >= columnCount() || role != Qt::DisplayRole)
- return QVariant();
- else
- return _itemData[column];
+
+QVariant SimpleTreeItem::data(int column, int role) const
+{
+ if (column >= columnCount() || role != Qt::DisplayRole)
+ return QVariant();
+ else
+ return _itemData[column];
}
-bool SimpleTreeItem::setData(int column, const QVariant &value, int role) {
- if(column > columnCount() || role != Qt::DisplayRole)
- return false;
- if(column == columnCount())
- _itemData.append(value);
- else
- _itemData[column] = value;
+bool SimpleTreeItem::setData(int column, const QVariant &value, int role)
+{
+ if (column > columnCount() || role != Qt::DisplayRole)
+ return false;
+
+ if (column == columnCount())
+ _itemData.append(value);
+ else
+ _itemData[column] = value;
- emit dataChanged(column);
- return true;
+ emit dataChanged(column);
+ return true;
}
-int SimpleTreeItem::columnCount() const {
- return _itemData.count();
+
+int SimpleTreeItem::columnCount() const
+{
+ return _itemData.count();
}
+
/*****************************************
* PropertyMapItem
*****************************************/
PropertyMapItem::PropertyMapItem(const QStringList &propertyOrder, AbstractTreeItem *parent)
- : AbstractTreeItem(parent),
+ : AbstractTreeItem(parent),
_propertyOrder(propertyOrder)
{
}
+
PropertyMapItem::PropertyMapItem(AbstractTreeItem *parent)
- : AbstractTreeItem(parent),
+ : AbstractTreeItem(parent),
_propertyOrder(QStringList())
{
}
-PropertyMapItem::~PropertyMapItem() {
+PropertyMapItem::~PropertyMapItem()
+{
}
-
-QVariant PropertyMapItem::data(int column, int role) const {
- if(column >= columnCount() || role != Qt::DisplayRole)
- return QVariant();
- return property(_propertyOrder[column].toAscii());
+
+QVariant PropertyMapItem::data(int column, int role) const
+{
+ if (column >= columnCount())
+ return QVariant();
+
+ switch (role) {
+ case Qt::ToolTipRole:
+ return toolTip(column);
+ case Qt::DisplayRole:
+ case TreeModel::SortRole: // fallthrough, since SortRole should default to DisplayRole
+ return property(_propertyOrder[column].toLatin1());
+ default:
+ return QVariant();
+ }
}
-bool PropertyMapItem::setData(int column, const QVariant &value, int role) {
- if(column >= columnCount() || role != Qt::DisplayRole)
- return false;
- emit dataChanged(column);
- return setProperty(_propertyOrder[column].toAscii(), value);
-}
+bool PropertyMapItem::setData(int column, const QVariant &value, int role)
+{
+ if (column >= columnCount() || role != Qt::DisplayRole)
+ return false;
-int PropertyMapItem::columnCount() const {
- return _propertyOrder.count();
+ emit dataChanged(column);
+ return setProperty(_propertyOrder[column].toLatin1(), value);
}
-
-void PropertyMapItem::appendProperty(const QString &property) {
- _propertyOrder << property;
+
+
+int PropertyMapItem::columnCount() const
+{
+ return _propertyOrder.count();
}
+void PropertyMapItem::appendProperty(const QString &property)
+{
+ _propertyOrder << property;
+}
+
/*****************************************
* TreeModel
*****************************************/
TreeModel::TreeModel(const QList<QVariant> &data, QObject *parent)
- : QAbstractItemModel(parent),
+ : QAbstractItemModel(parent),
_childStatus(QModelIndex(), 0, 0, 0),
_aboutToRemoveOrInsert(false)
{
- rootItem = new SimpleTreeItem(data, 0);
- connectItem(rootItem);
+ rootItem = new SimpleTreeItem(data, 0);
+ connectItem(rootItem);
+
+ if (Quassel::isOptionSet("debugmodel")) {
+ connect(this, SIGNAL(rowsAboutToBeInserted(const QModelIndex &, int, int)),
+ this, SLOT(debug_rowsAboutToBeInserted(const QModelIndex &, int, int)));
+ connect(this, SIGNAL(rowsAboutToBeRemoved(const QModelIndex &, int, int)),
+ this, SLOT(debug_rowsAboutToBeRemoved(const QModelIndex &, int, int)));
+ connect(this, SIGNAL(rowsInserted(const QModelIndex &, int, int)),
+ this, SLOT(debug_rowsInserted(const QModelIndex &, int, int)));
+ connect(this, SIGNAL(rowsRemoved(const QModelIndex &, int, int)),
+ this, SLOT(debug_rowsRemoved(const QModelIndex &, int, int)));
+ connect(this, SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)),
+ this, SLOT(debug_dataChanged(const QModelIndex &, const QModelIndex &)));
+ }
+}
+
+
+TreeModel::~TreeModel()
+{
+ delete rootItem;
+}
+
+
+QModelIndex TreeModel::index(int row, int column, const QModelIndex &parent) const
+{
+ if (row < 0 || row >= rowCount(parent) || column < 0 || column >= columnCount(parent))
+ return QModelIndex();
+
+ AbstractTreeItem *parentItem;
+
+ if (!parent.isValid())
+ parentItem = rootItem;
+ else
+ parentItem = static_cast<AbstractTreeItem *>(parent.internalPointer());
+
+ AbstractTreeItem *childItem = parentItem->child(row);
+
+ if (childItem)
+ return createIndex(row, column, childItem);
+ else
+ return QModelIndex();
+}
+
+
+QModelIndex TreeModel::indexByItem(AbstractTreeItem *item) const
+{
+ if (item == 0) {
+ qWarning() << "TreeModel::indexByItem(AbstractTreeItem *item) received NULL-Pointer";
+ return QModelIndex();
+ }
+
+ if (item == rootItem)
+ return QModelIndex();
+ else
+ return createIndex(item->row(), 0, item);
+}
+
+
+QModelIndex TreeModel::parent(const QModelIndex &index) const
+{
+ if (!index.isValid()) {
+ // ModelTest does this
+ // qWarning() << "TreeModel::parent(): has been asked for the rootItems Parent!";
+ return QModelIndex();
+ }
+
+ AbstractTreeItem *childItem = static_cast<AbstractTreeItem *>(index.internalPointer());
+ AbstractTreeItem *parentItem = childItem->parent();
+
+ Q_ASSERT(parentItem);
+ if (parentItem == rootItem)
+ return QModelIndex();
+
+ return createIndex(parentItem->row(), 0, parentItem);
+}
+
+
+int TreeModel::rowCount(const QModelIndex &parent) const
+{
+ AbstractTreeItem *parentItem;
+ if (!parent.isValid())
+ parentItem = rootItem;
+ else
+ parentItem = static_cast<AbstractTreeItem *>(parent.internalPointer());
+
+ return parentItem->childCount(parent.column());
+}
+
+
+int TreeModel::columnCount(const QModelIndex &parent) const
+{
+ Q_UNUSED(parent)
+ return rootItem->columnCount();
+ // since there the Qt Views don't draw more columns than the header has columns
+ // we can be lazy and simply return the count of header columns
+ // actually this gives us more freedom cause we don't have to ensure that a rows parent
+ // has equal or more columns than that row
+
+// AbstractTreeItem *parentItem;
+// if(!parent.isValid())
+// parentItem = rootItem;
+// else
+// parentItem = static_cast<AbstractTreeItem*>(parent.internalPointer());
+// return parentItem->columnCount();
+}
+
+
+QVariant TreeModel::data(const QModelIndex &index, int role) const
+{
+ if (!index.isValid())
+ return QVariant();
+
+ AbstractTreeItem *item = static_cast<AbstractTreeItem *>(index.internalPointer());
+ return item->data(index.column(), role);
+}
+
+
+bool TreeModel::setData(const QModelIndex &index, const QVariant &value, int role)
+{
+ if (!index.isValid())
+ return false;
+
+ AbstractTreeItem *item = static_cast<AbstractTreeItem *>(index.internalPointer());
+ return item->setData(index.column(), value, role);
+}
+
+
+Qt::ItemFlags TreeModel::flags(const QModelIndex &index) const
+{
+ if (!index.isValid()) {
+ return rootItem->flags() & Qt::ItemIsDropEnabled;
+ }
+ else {
+ AbstractTreeItem *item = static_cast<AbstractTreeItem *>(index.internalPointer());
+ return item->flags();
+ }
+}
+
+
+QVariant TreeModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+ if (orientation == Qt::Horizontal && role == Qt::DisplayRole)
+ return rootItem->data(section, role);
+ else
+ return QVariant();
+}
+
+
+void TreeModel::itemDataChanged(int column)
+{
+ AbstractTreeItem *item = qobject_cast<AbstractTreeItem *>(sender());
+ QModelIndex leftIndex, rightIndex;
+
+ if (item == rootItem)
+ return;
+
+ if (column == -1) {
+ leftIndex = createIndex(item->row(), 0, item);
+ rightIndex = createIndex(item->row(), item->columnCount() - 1, item);
+ }
+ else {
+ leftIndex = createIndex(item->row(), column, item);
+ rightIndex = leftIndex;
+ }
+
+ emit dataChanged(leftIndex, rightIndex);
}
-TreeModel::~TreeModel() {
- delete rootItem;
+
+void TreeModel::connectItem(AbstractTreeItem *item)
+{
+ connect(item, SIGNAL(dataChanged(int)),
+ this, SLOT(itemDataChanged(int)));
+
+ connect(item, SIGNAL(beginAppendChilds(int, int)),
+ this, SLOT(beginAppendChilds(int, int)));
+ connect(item, SIGNAL(endAppendChilds()),
+ this, SLOT(endAppendChilds()));
+
+ connect(item, SIGNAL(beginRemoveChilds(int, int)),
+ this, SLOT(beginRemoveChilds(int, int)));
+ connect(item, SIGNAL(endRemoveChilds()),
+ this, SLOT(endRemoveChilds()));
}
-QModelIndex TreeModel::index(int row, int column, const QModelIndex &parent) const {
- if(!hasIndex(row, column, parent))
- return QModelIndex();
-
- AbstractTreeItem *parentItem;
-
- if(!parent.isValid())
- parentItem = rootItem;
- else
- parentItem = static_cast<AbstractTreeItem*>(parent.internalPointer());
-
- AbstractTreeItem *childItem = parentItem->child(parent.column(), row);
- if(childItem)
- return createIndex(row, column, childItem);
- else
- return QModelIndex();
+void TreeModel::beginAppendChilds(int firstRow, int lastRow)
+{
+ AbstractTreeItem *parentItem = qobject_cast<AbstractTreeItem *>(sender());
+ if (!parentItem) {
+ qWarning() << "TreeModel::beginAppendChilds(): cannot append Children to unknown parent";
+ return;
+ }
+
+ QModelIndex parent = indexByItem(parentItem);
+ Q_ASSERT(!_aboutToRemoveOrInsert);
+
+ _aboutToRemoveOrInsert = true;
+ _childStatus = ChildStatus(parent, rowCount(parent), firstRow, lastRow);
+ beginInsertRows(parent, firstRow, lastRow);
}
-QModelIndex TreeModel::indexById(quint64 id, const QModelIndex &parent) const {
- AbstractTreeItem *parentItem;
-
- if(!parent.isValid())
- parentItem = rootItem;
- else
+
+void TreeModel::endAppendChilds()
+{
+ AbstractTreeItem *parentItem = qobject_cast<AbstractTreeItem *>(sender());
+ if (!parentItem) {
+ qWarning() << "TreeModel::endAppendChilds(): cannot append Children to unknown parent";
+ return;
+ }
+ Q_ASSERT(_aboutToRemoveOrInsert);
+ ChildStatus cs = _childStatus;
+#ifndef QT_NO_DEBUG
+ QModelIndex parent = indexByItem(parentItem);
+ Q_ASSERT(cs.parent == parent);
+ Q_ASSERT(rowCount(parent) == cs.childCount + cs.end - cs.start + 1);
+#endif
+ _aboutToRemoveOrInsert = false;
+ for (int i = cs.start; i <= cs.end; i++) {
+ connectItem(parentItem->child(i));
+ }
+ endInsertRows();
+}
+
+
+void TreeModel::beginRemoveChilds(int firstRow, int lastRow)
+{
+ AbstractTreeItem *parentItem = qobject_cast<AbstractTreeItem *>(sender());
+ if (!parentItem) {
+ qWarning() << "TreeModel::beginRemoveChilds(): cannot append Children to unknown parent";
+ return;
+ }
+
+ for (int i = firstRow; i <= lastRow; i++) {
+ disconnect(parentItem->child(i), 0, this, 0);
+ }
+
+ // consitency checks
+ QModelIndex parent = indexByItem(parentItem);
+ Q_ASSERT(firstRow <= lastRow);
+ Q_ASSERT(parentItem->childCount() > lastRow);
+ Q_ASSERT(!_aboutToRemoveOrInsert);
+ _aboutToRemoveOrInsert = true;
+ _childStatus = ChildStatus(parent, rowCount(parent), firstRow, lastRow);
+
+ beginRemoveRows(parent, firstRow, lastRow);
+}
+
+
+void TreeModel::endRemoveChilds()
+{
+ AbstractTreeItem *parentItem = qobject_cast<AbstractTreeItem *>(sender());
+ if (!parentItem) {
+ qWarning() << "TreeModel::endRemoveChilds(): cannot remove Children from unknown parent";
+ return;
+ }
+
+ // concistency checks
+ Q_ASSERT(_aboutToRemoveOrInsert);
+#ifndef QT_NO_DEBUG
+ ChildStatus cs = _childStatus;
+ QModelIndex parent = indexByItem(parentItem);
+ Q_ASSERT(cs.parent == parent);
+ Q_ASSERT(rowCount(parent) == cs.childCount - cs.end + cs.start - 1);
+#endif
+ _aboutToRemoveOrInsert = false;
+
+ endRemoveRows();
+}
+
+
+void TreeModel::clear()
+{
+ rootItem->removeAllChilds();
+}
+
+
+void TreeModel::debug_rowsAboutToBeInserted(const QModelIndex &parent, int start, int end)
+{
+ qDebug() << "debug_rowsAboutToBeInserted" << parent << parent.internalPointer() << parent.data().toString() << rowCount(parent) << start << end;
+}
+
+
+void TreeModel::debug_rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end)
+{
+ AbstractTreeItem *parentItem;
parentItem = static_cast<AbstractTreeItem *>(parent.internalPointer());
-
- AbstractTreeItem *childItem = parentItem->childById(parent.column(), id);
-
- if(childItem)
- return createIndex(childItem->row(), 0, childItem);
- else
- return QModelIndex();
-}
-
-QModelIndex TreeModel::indexByItem(AbstractTreeItem *item, int column) const {
- if(item == 0) {
- qWarning() << "TreeModel::indexByItem(AbstractTreeItem *item) received NULL-Pointer";
- return QModelIndex();
- }
-
- if(item == rootItem)
- return QModelIndex();
- else
- return createIndex(item->row(), column, item);
-
-}
-
-QModelIndex TreeModel::parent(const QModelIndex &index) const {
- if(!index.isValid())
- return QModelIndex();
-
- AbstractTreeItem *childItem = static_cast<AbstractTreeItem *>(index.internalPointer());
- AbstractTreeItem *parentItem = static_cast<AbstractTreeItem *>(childItem->parent());
-
- if(parentItem == rootItem)
- return QModelIndex();
-
- return createIndex(parentItem->row(), childItem->column(), parentItem);
-}
-
-int TreeModel::rowCount(const QModelIndex &parent) const {
- AbstractTreeItem *parentItem;
- if(!parent.isValid())
- parentItem = rootItem;
- else
- parentItem = static_cast<AbstractTreeItem*>(parent.internalPointer());
-
- return parentItem->childCount(parent.column());
-}
-
-int TreeModel::columnCount(const QModelIndex &parent) const {
- Q_UNUSED(parent)
- // since there the Qt Views don't draw more columns than the header has columns
- // we can be lazy and simply return the count of header columns
- // actually this gives us more freedom cause we don't have to ensure that a rows parent
- // has equal or more columns than that row
-
-// if(parent.isValid()) {
-// AbstractTreeItem *child;
-// if(child = static_cast<AbstractTreeItem *>(parent.internalPointer())->child(parent.column(), parent.row()))
-// return child->columnCount();
-// else
-// return static_cast<AbstractTreeItem*>(parent.internalPointer())->columnCount();
-// } else {
-// return rootItem->columnCount();
-// }
-
- return rootItem->columnCount();
-}
-
-QVariant TreeModel::data(const QModelIndex &index, int role) const {
- if(!index.isValid())
- return QVariant();
-
- AbstractTreeItem *item = static_cast<AbstractTreeItem *>(index.internalPointer());
- return item->data(index.column(), role);
-}
-
-bool TreeModel::setData(const QModelIndex &index, const QVariant &value, int role) {
- if(!index.isValid())
- return false;
-
- AbstractTreeItem *item = static_cast<AbstractTreeItem *>(index.internalPointer());
- return item->setData(index.column(), value, role);
-}
-
-Qt::ItemFlags TreeModel::flags(const QModelIndex &index) const {
- AbstractTreeItem *item;
- if(!index.isValid())
- item = rootItem;
- else
- item = static_cast<AbstractTreeItem *>(index.internalPointer());
- return item->flags();
-}
-
-QVariant TreeModel::headerData(int section, Qt::Orientation orientation, int role) const {
- if (orientation == Qt::Horizontal && role == Qt::DisplayRole)
- return rootItem->data(section, role);
- else
- return QVariant();
-}
-
-void TreeModel::itemDataChanged(int column) {
- AbstractTreeItem *item = qobject_cast<AbstractTreeItem *>(sender());
- QModelIndex leftIndex, rightIndex;
-
- if(item == rootItem)
- return;
-
- if(column == -1) {
- leftIndex = createIndex(item->row(), 0, item);
- rightIndex = createIndex(item->row(), item->columnCount()-1, item);
- } else {
- leftIndex = createIndex(item->row(), column, item);
- rightIndex = leftIndex;
- }
-
- emit dataChanged(leftIndex, rightIndex);
-}
-
-void TreeModel::connectItem(AbstractTreeItem *item) {
- connect(item, SIGNAL(dataChanged(int)),
- this, SLOT(itemDataChanged(int)));
-
- connect(item, SIGNAL(beginAppendChilds(int, int, int)),
- this, SLOT(beginAppendChilds(int, int, int)));
- connect(item, SIGNAL(endAppendChilds()),
- this, SLOT(endAppendChilds()));
-
- connect(item, SIGNAL(beginRemoveChilds(int, int, int)),
- this, SLOT(beginRemoveChilds(int, int, int)));
- connect(item, SIGNAL(endRemoveChilds()),
- this, SLOT(endRemoveChilds()));
-}
-
-void TreeModel::beginAppendChilds(int column, int firstRow, int lastRow) {
- AbstractTreeItem *parentItem = qobject_cast<AbstractTreeItem *>(sender());
- if(!parentItem) {
- qWarning() << "TreeModel::beginAppendChilds(): cannot append Childs to unknown parent";
- return;
- }
- QModelIndex parent = indexByItem(parentItem, column);
- Q_ASSERT(!_aboutToRemoveOrInsert);
-
- _aboutToRemoveOrInsert = true;
- _childStatus = ChildStatus(parent, rowCount(parent), firstRow, lastRow);
- beginInsertRows(parent, firstRow, lastRow);
-}
-
-void TreeModel::endAppendChilds() {
- AbstractTreeItem *parentItem = qobject_cast<AbstractTreeItem *>(sender());
- if(!parentItem) {
- qWarning() << "TreeModel::endAppendChilds(): cannot append Childs to unknown parent";
- return;
- }
- Q_ASSERT(_aboutToRemoveOrInsert);
- ChildStatus cs = _childStatus;
- QModelIndex parent = indexByItem(parentItem, cs.parent.column());
- Q_ASSERT(cs.parent == parent);
- Q_ASSERT(rowCount(parent) == cs.childCount + cs.end - cs.start + 1);
-
- _aboutToRemoveOrInsert = false;
- for(int i = cs.start; i <= cs.end; i++) {
- connectItem(parentItem->child(parent.column(), i));
- }
- endInsertRows();
-}
-
-void TreeModel::beginRemoveChilds(int column, int firstRow, int lastRow) {
- AbstractTreeItem *parentItem = qobject_cast<AbstractTreeItem *>(sender());
- if(!parentItem) {
- qWarning() << "TreeModel::beginRemoveChilds(): cannot append Childs to unknown parent";
- return;
- }
- QModelIndex parent = indexByItem(parentItem, column);
- Q_ASSERT(firstRow <= lastRow);
- Q_ASSERT(parentItem->childCount(column) > lastRow);
- Q_ASSERT(!_aboutToRemoveOrInsert);
-
- _aboutToRemoveOrInsert = true;
- _childStatus = ChildStatus(parent, rowCount(parent), firstRow, lastRow);
- beginRemoveRows(parent, firstRow, lastRow);
-}
-
-void TreeModel::endRemoveChilds() {
- AbstractTreeItem *parentItem = qobject_cast<AbstractTreeItem *>(sender());
- if(!parentItem) {
- qWarning() << "TreeModel::endRemoveChilds(): cannot append Childs to unknown parent";
- return;
- }
- Q_ASSERT(_aboutToRemoveOrInsert);
- ChildStatus cs = _childStatus;
- QModelIndex parent = indexByItem(parentItem, cs.parent.column());
- Q_ASSERT(cs.parent == parent);
- Q_ASSERT(rowCount(parent) == cs.childCount - cs.end + cs.start - 1);
-
- _aboutToRemoveOrInsert = false;
- endRemoveRows();
-}
-
-void TreeModel::clear() {
- rootItem->removeAllChilds();
+ if (!parentItem)
+ parentItem = rootItem;
+ qDebug() << "debug_rowsAboutToBeRemoved" << parent << parentItem << parent.data().toString() << rowCount(parent) << start << end;
+
+ QModelIndex child;
+ for (int i = end; i >= start; i--) {
+ child = parent.child(i, 0);
+ Q_ASSERT(parentItem->child(i));
+ qDebug() << ">>>" << i << child << child.data().toString();
+ }
+}
+
+
+void TreeModel::debug_rowsInserted(const QModelIndex &parent, int start, int end)
+{
+ AbstractTreeItem *parentItem;
+ parentItem = static_cast<AbstractTreeItem *>(parent.internalPointer());
+ if (!parentItem)
+ parentItem = rootItem;
+ qDebug() << "debug_rowsInserted:" << parent << parentItem << parent.data().toString() << rowCount(parent) << start << end;
+
+ QModelIndex child;
+ for (int i = start; i <= end; i++) {
+ child = parent.child(i, 0);
+ Q_ASSERT(parentItem->child(i));
+ qDebug() << "<<<" << i << child << child.data().toString();
+ }
+}
+
+
+void TreeModel::debug_rowsRemoved(const QModelIndex &parent, int start, int end)
+{
+ qDebug() << "debug_rowsRemoved" << parent << parent.internalPointer() << parent.data().toString() << rowCount(parent) << start << end;
+}
+
+
+void TreeModel::debug_dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight)
+{
+ qDebug() << "debug_dataChanged" << topLeft << bottomRight;
+ QStringList displayData;
+ for (int row = topLeft.row(); row <= bottomRight.row(); row++) {
+ displayData = QStringList();
+ for (int column = topLeft.column(); column <= bottomRight.column(); column++) {
+ displayData << data(topLeft.sibling(row, column), Qt::DisplayRole).toString();
+ }
+ qDebug() << " row:" << row << displayData;
+ }
}
projects / quassel.git / blobdiff