/***************************************************************************
- * Copyright (C) 2005-07 by the Quassel IRC Team *
+ * Copyright (C) 2005-08 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
*****************************************/
AbstractTreeItem::AbstractTreeItem(AbstractTreeItem *parent)
: QObject(parent),
- _parentItem(parent),
_flags(Qt::ItemIsSelectable | Qt::ItemIsEnabled)
{
}
AbstractTreeItem::~AbstractTreeItem() {
- foreach(int key, _childItems.keys()) {
- qDeleteAll(_childItems[key]);
- }
}
quint64 AbstractTreeItem::id() const {
int AbstractTreeItem::defaultColumn() const {
// invalid QModelIndexes aka rootNodes get their Childs stuffed into column -1
// all others to 0
- if(_parentItem == 0)
+ if(parent() == 0)
return -1;
else
return 0;
}
-void AbstractTreeItem::appendChild(int column, AbstractTreeItem *item) {
+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 *>();
- _childHash[column] = QHash<quint64, AbstractTreeItem *>();
}
-
- _childItems[column].append(item);
- _childHash[column][item->id()] = item;
- connect(item, SIGNAL(destroyed()), this, SLOT(childDestroyed()));
+ int newRow = _childItems[column].count();
+ emit beginAppendChilds(column, newRow, newRow);
+ _childItems[column].append(item);
+ emit endAppendChilds();
+
+ return true;
}
-void AbstractTreeItem::appendChild(AbstractTreeItem *child) {
- appendChild(defaultColumn(), child);
+bool AbstractTreeItem::newChild(AbstractTreeItem *item) {
+ return newChild(defaultColumn(), item);
}
-void AbstractTreeItem::removeChild(int column, int row) {
- if(!_childItems.contains(column)
- || _childItems[column].size() <= row)
- return;
-
- AbstractTreeItem *treeitem = _childItems[column].value(row);
- _childItems[column].removeAt(row);
- _childHash[column].remove(_childHash[column].key(treeitem));
+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();
+
+ return true;
}
-void AbstractTreeItem::removeChild(int row) {
- removeChild(defaultColumn(), row);
+bool AbstractTreeItem::removeChild(int row) {
+ return removeChild(defaultColumn(), row);
+}
+
+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;
+}
+
+bool AbstractTreeItem::removeChildById(const quint64 &id) {
+ return removeChildById(defaultColumn(), id);
+}
+
+void AbstractTreeItem::removeAllChilds() {
+ AbstractTreeItem *child;
+
+ 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();
+ }
+ columnIter++;
+ }
}
AbstractTreeItem *AbstractTreeItem::child(int column, int row) const {
- if(!_childItems.contains(column)
- || _childItems[column].size() <= row)
+ if(!_childItems.contains(column) || _childItems[column].size() <= row)
return 0;
else
return _childItems[column].value(row);
return child(defaultColumn(), row);
}
-AbstractTreeItem *AbstractTreeItem::childById(int column, const uint &id) const {
- if(!_childHash.contains(column)
- || !_childHash[column].contains(id))
+AbstractTreeItem *AbstractTreeItem::childById(int column, const quint64 &id) const {
+ if(!_childItems.contains(column))
return 0;
- else
- return _childHash[column].value(id);
+
+ for(int i = 0; i < _childItems[column].count(); i++) {
+ if(_childItems[column][i]->id() == id)
+ return _childItems[column][i];
+ }
+ return 0;
}
-AbstractTreeItem *AbstractTreeItem::childById(const uint &id) const {
+AbstractTreeItem *AbstractTreeItem::childById(const quint64 &id) const {
return childById(defaultColumn(), id);
}
}
int AbstractTreeItem::column() const {
- if(!_parentItem)
+ if(!parent())
return -1;
- QHash<int, QList<AbstractTreeItem*> >::const_iterator iter = _parentItem->_childItems.constBegin();
- int pos;
- while(iter != _parentItem->_childItems.constEnd()) {
- pos = iter.value().indexOf(const_cast<AbstractTreeItem *>(this));
- if(pos != -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++;
}
- // unable to find us o_O
- return _parentItem->defaultColumn();
+ qWarning() << "AbstractTreeItem::column(): unable to determine the Column of" << this;
+ return parent()->defaultColumn();
}
int AbstractTreeItem::row() const {
- if(!_parentItem)
+ if(!parent())
return -1;
else
- return _parentItem->_childItems[column()].indexOf(const_cast<AbstractTreeItem*>(this));
+ return parent()->_childItems[column()].indexOf(const_cast<AbstractTreeItem *>(this));
}
-AbstractTreeItem *AbstractTreeItem::parent() {
- return _parentItem;
+AbstractTreeItem *AbstractTreeItem::parent() const {
+ return qobject_cast<AbstractTreeItem *>(QObject::parent());
}
Qt::ItemFlags AbstractTreeItem::flags() const {
_flags = flags;
}
-void AbstractTreeItem::childDestroyed() {
- AbstractTreeItem *item = static_cast<AbstractTreeItem*>(sender());
- removeChild(item->column(), item->row());
-}
-
/*****************************************
* SimpleTreeItem
*****************************************/
}
QVariant SimpleTreeItem::data(int column, int role) const {
- if(role == Qt::DisplayRole && column < _itemData.count())
+ 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
- return QVariant();
+ _itemData[column] = value;
+
+ emit dataChanged(column);
+ return true;
}
int SimpleTreeItem::columnCount() const {
}
QVariant PropertyMapItem::data(int column, int role) const {
- if(column >= columnCount())
- return QVariant();
-
- if(role != Qt::DisplayRole)
+ if(column >= columnCount() || role != Qt::DisplayRole)
return QVariant();
return property(_propertyOrder[column].toAscii());
}
+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);
+}
+
int PropertyMapItem::columnCount() const {
return _propertyOrder.count();
}
* 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);
}
TreeModel::~TreeModel() {
return QModelIndex();
}
-QModelIndex TreeModel::indexById(uint id, const QModelIndex &parent) const {
+QModelIndex TreeModel::indexById(quint64 id, const QModelIndex &parent) const {
AbstractTreeItem *parentItem;
if(!parent.isValid())
return QModelIndex();
}
-QModelIndex TreeModel::indexByItem(AbstractTreeItem *item) const {
+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(), 0, item);
+ return createIndex(item->row(), column, item);
}
if(parentItem == rootItem)
return QModelIndex();
- return createIndex(parentItem->row(), 0, parentItem);
+ return createIndex(parentItem->row(), childItem->column(), parentItem);
}
int TreeModel::rowCount(const QModelIndex &parent) const {
}
int TreeModel::columnCount(const QModelIndex &parent) const {
- if(parent.isValid())
- return static_cast<AbstractTreeItem*>(parent.internalPointer())->columnCount();
- else
- return rootItem->columnCount();
+ 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());
+ 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())
void TreeModel::itemDataChanged(int column) {
AbstractTreeItem *item = qobject_cast<AbstractTreeItem *>(sender());
- QModelIndex itemIndex;
+ QModelIndex leftIndex, rightIndex;
- if(item == rootItem)
- itemIndex = QModelIndex();
- else
- itemIndex = createIndex(item->row(), column, item);
-
- emit dataChanged(itemIndex, itemIndex);
-}
-
-void TreeModel::appendChild(AbstractTreeItem *parent, AbstractTreeItem *child) {
- if(parent == 0 or child == 0) {
- qWarning() << "TreeModel::apendChild(parent, child) parent and child have to be valid pointers!" << parent << child;
+ 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;
}
- int nextRow = parent->childCount();
- beginInsertRows(indexByItem(parent), nextRow, nextRow);
- parent->appendChild(child);
- endInsertRows();
+ emit dataChanged(leftIndex, rightIndex);
+}
- connect(child, SIGNAL(dataChanged(int)),
+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()));
}
-
-bool TreeModel::removeRow(int row, const QModelIndex &parent) {
- if(row > rowCount(parent))
- return false;
-
- AbstractTreeItem *item;
- if(!parent.isValid())
- item = rootItem;
- else
- item = static_cast<AbstractTreeItem*>(parent.internalPointer());
+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);
- beginRemoveRows(parent, row, row);
- item->removeChild(parent.column(), row);
- endRemoveRows();
- return true;
+ _aboutToRemoveOrInsert = true;
+ _childStatus = ChildStatus(parent, rowCount(parent), firstRow, lastRow);
+ beginInsertRows(parent, firstRow, lastRow);
}
-bool TreeModel::removeRows(int row, int count, const QModelIndex &parent) {
- // check if there is work to be done
- if(count == 0)
- return true;
+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();
+}
- // out of range check
- if(row + count - 1 > rowCount(parent) || row < 0 || count < 0)
- return false;
-
- AbstractTreeItem *item;
- if(!parent.isValid())
- item = rootItem;
- else
- item = static_cast<AbstractTreeItem *>(parent.internalPointer());
-
+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);
- beginRemoveRows(parent, row, row + count - 1);
+ _aboutToRemoveOrInsert = true;
+ _childStatus = ChildStatus(parent, rowCount(parent), firstRow, lastRow);
+ beginRemoveRows(parent, firstRow, lastRow);
+}
- for(int i = row + count - 1; i >= 0; i--) {
- item->removeChild(parent.column(), i);
+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();
- return true;
}
void TreeModel::clear() {
- removeRows(0, rowCount());
- reset();
+ rootItem->removeAllChilds();
}
projects / quassel.git / blobdiff