#include "treemodel.h"
+#include <QDebug>
+
/*****************************************
- * Buffer Items stored in the Tree Model
+ * Abstract Items of a TreeModel
*****************************************/
-TreeItem::TreeItem(const QList<QVariant> &data, TreeItem *parent)
+AbstractTreeItem::AbstractTreeItem(AbstractTreeItem *parent)
: QObject(parent),
- itemData(data),
_parentItem(parent),
_flags(Qt::ItemIsSelectable | Qt::ItemIsEnabled)
{
}
-TreeItem::TreeItem(TreeItem *parent)
- : QObject(parent),
- itemData(QList<QVariant>()),
- _parentItem(parent),
- _flags(Qt::ItemIsSelectable | Qt::ItemIsEnabled)
-{
+AbstractTreeItem::~AbstractTreeItem() {
+ foreach(int key, _childItems.keys()) {
+ qDeleteAll(_childItems[key]);
+ }
}
-TreeItem::~TreeItem() {
- qDeleteAll(_childItems);
+quint64 AbstractTreeItem::id() const {
+ return (quint64)this;
}
-quint64 TreeItem::id() const {
- return (quint64)this;
+int AbstractTreeItem::defaultColumn() const {
+ // invalid QModelIndexes aka rootNodes get their Childs stuffed into column -1
+ // all others to 0
+ if(_parentItem == 0)
+ return -1;
+ else
+ return 0;
}
-void TreeItem::appendChild(TreeItem *item) {
- _childItems.append(item);
- _childHash[item->id()] = item;
- connect(item, SIGNAL(destroyed()),
- this, SLOT(childDestroyed()));
+void AbstractTreeItem::appendChild(int column, AbstractTreeItem *item) {
+ 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()));
+}
+
+void AbstractTreeItem::appendChild(AbstractTreeItem *child) {
+ appendChild(defaultColumn(), child);
}
-void TreeItem::removeChild(int row) {
- if(row >= _childItems.size())
+void AbstractTreeItem::removeChild(int column, int row) {
+ if(!_childItems.contains(column)
+ || _childItems[column].size() <= row)
return;
- TreeItem *treeitem = _childItems.value(row);
- _childItems.removeAt(row);
- _childHash.remove(_childHash.key(treeitem));
+
+ AbstractTreeItem *treeitem = _childItems[column].value(row);
+ _childItems[column].removeAt(row);
+ _childHash[column].remove(_childHash[column].key(treeitem));
+ treeitem->deleteLater();
}
-TreeItem *TreeItem::child(int row) const {
- if(row < _childItems.size())
- return _childItems.value(row);
- else
+void AbstractTreeItem::removeChild(int row) {
+ removeChild(defaultColumn(), row);
+}
+
+AbstractTreeItem *AbstractTreeItem::child(int column, int row) const {
+ if(!_childItems.contains(column)
+ || _childItems[column].size() <= row)
return 0;
+ else
+ return _childItems[column].value(row);
}
-TreeItem *TreeItem::childById(const uint &id) const {
- if(_childHash.contains(id))
- return _childHash.value(id);
+AbstractTreeItem *AbstractTreeItem::child(int row) const {
+ return child(defaultColumn(), row);
+}
+
+AbstractTreeItem *AbstractTreeItem::childById(int column, const uint &id) const {
+ if(!_childHash.contains(column)
+ || !_childHash[column].contains(id))
+ return 0;
else
+ return _childHash[column].value(id);
+}
+
+AbstractTreeItem *AbstractTreeItem::childById(const uint &id) const {
+ return childById(defaultColumn(), id);
+}
+
+int AbstractTreeItem::childCount(int column) const {
+ if(!_childItems.contains(column))
return 0;
+ else
+ return _childItems[column].count();
}
-int TreeItem::childCount() const {
- return _childItems.count();
+int AbstractTreeItem::childCount() const {
+ return childCount(defaultColumn());
}
-int TreeItem::row() const {
- if(_parentItem)
- return _parentItem->_childItems.indexOf(const_cast<TreeItem*>(this));
+int AbstractTreeItem::column() const {
+ if(!_parentItem)
+ 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)
+ return iter.key();
+ iter++;
+ }
+
+ // unable to find us o_O
+ return _parentItem->defaultColumn();
+}
+
+int AbstractTreeItem::row() const {
+ if(!_parentItem)
+ return -1;
else
- return 0;
+ return _parentItem->_childItems[column()].indexOf(const_cast<AbstractTreeItem*>(this));
}
-TreeItem *TreeItem::parent() {
+AbstractTreeItem *AbstractTreeItem::parent() {
return _parentItem;
}
-int TreeItem::columnCount() const {
- return itemData.count();
+Qt::ItemFlags AbstractTreeItem::flags() const {
+ return _flags;
+}
+
+void AbstractTreeItem::setFlags(Qt::ItemFlags flags) {
+ _flags = flags;
}
-QVariant TreeItem::data(int column, int role) const {
- if(role == Qt::DisplayRole && column < itemData.count())
- return itemData[column];
+void AbstractTreeItem::childDestroyed() {
+ AbstractTreeItem *item = static_cast<AbstractTreeItem*>(sender());
+ removeChild(item->column(), item->row());
+}
+
+/*****************************************
+ * SimpleTreeItem
+ *****************************************/
+SimpleTreeItem::SimpleTreeItem(const QList<QVariant> &data, AbstractTreeItem *parent)
+ : AbstractTreeItem(parent),
+ _itemData(data)
+{
+}
+
+SimpleTreeItem::~SimpleTreeItem() {
+}
+
+QVariant SimpleTreeItem::data(int column, int role) const {
+ if(role == Qt::DisplayRole && column < _itemData.count())
+ return _itemData[column];
else
return QVariant();
}
-Qt::ItemFlags TreeItem::flags() const {
- return _flags;
+int SimpleTreeItem::columnCount() const {
+ return _itemData.count();
}
-void TreeItem::setFlags(Qt::ItemFlags flags) {
- _flags = flags;
+/*****************************************
+ * PropertyMapItem
+ *****************************************/
+PropertyMapItem::PropertyMapItem(const QStringList &propertyOrder, AbstractTreeItem *parent)
+ : AbstractTreeItem(parent),
+ _propertyOrder(propertyOrder)
+{
+}
+
+PropertyMapItem::PropertyMapItem(AbstractTreeItem *parent)
+ : AbstractTreeItem(parent),
+ _propertyOrder(QStringList())
+{
+}
+
+
+PropertyMapItem::~PropertyMapItem() {
}
+
+QVariant PropertyMapItem::data(int column, int role) const {
+ if(column >= columnCount())
+ return QVariant();
-void TreeItem::childDestroyed() {
- TreeItem *item = static_cast<TreeItem*>(sender());
- removeChild(item->row());
+ if(role != Qt::DisplayRole)
+ return QVariant();
+
+ return property(_propertyOrder[column].toAscii());
+}
+
+int PropertyMapItem::columnCount() const {
+ return _propertyOrder.count();
}
+void PropertyMapItem::appendProperty(const QString &property) {
+ _propertyOrder << property;
+}
+
/*****************************************
TreeModel::TreeModel(const QList<QVariant> &data, QObject *parent)
: QAbstractItemModel(parent)
{
- rootItem = new TreeItem(data, 0);
+ rootItem = new SimpleTreeItem(data, 0);
}
TreeModel::~TreeModel() {
if(!hasIndex(row, column, parent))
return QModelIndex();
- TreeItem *parentItem;
+ AbstractTreeItem *parentItem;
if(!parent.isValid())
parentItem = rootItem;
else
- parentItem = static_cast<TreeItem*>(parent.internalPointer());
+ parentItem = static_cast<AbstractTreeItem*>(parent.internalPointer());
- TreeItem *childItem = parentItem->child(row);
+ AbstractTreeItem *childItem = parentItem->child(parent.column(), row);
+
if(childItem)
return createIndex(row, column, childItem);
else
}
QModelIndex TreeModel::indexById(uint id, const QModelIndex &parent) const {
- TreeItem *parentItem;
+ AbstractTreeItem *parentItem;
if(!parent.isValid())
parentItem = rootItem;
else
- parentItem = static_cast<TreeItem *>(parent.internalPointer());
+ parentItem = static_cast<AbstractTreeItem *>(parent.internalPointer());
+
+ AbstractTreeItem *childItem = parentItem->childById(parent.column(), id);
- TreeItem *childItem = parentItem->childById(id);
if(childItem)
return createIndex(childItem->row(), 0, 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())
return QModelIndex();
- TreeItem *childItem = static_cast<TreeItem*>(index.internalPointer());
- TreeItem *parentItem = static_cast<TreeItem*>(childItem->parent());
+ AbstractTreeItem *childItem = static_cast<AbstractTreeItem *>(index.internalPointer());
+ AbstractTreeItem *parentItem = static_cast<AbstractTreeItem *>(childItem->parent());
if(parentItem == rootItem)
return QModelIndex();
}
int TreeModel::rowCount(const QModelIndex &parent) const {
- TreeItem *parentItem;
+ AbstractTreeItem *parentItem;
if(!parent.isValid())
parentItem = rootItem;
else
- parentItem = static_cast<TreeItem*>(parent.internalPointer());
-
- return parentItem->childCount();
+ parentItem = static_cast<AbstractTreeItem*>(parent.internalPointer());
+
+ return parentItem->childCount(parent.column());
}
int TreeModel::columnCount(const QModelIndex &parent) const {
if(parent.isValid())
- return static_cast<TreeItem*>(parent.internalPointer())->columnCount();
+ return static_cast<AbstractTreeItem*>(parent.internalPointer())->columnCount();
else
return rootItem->columnCount();
}
if(!index.isValid())
return QVariant();
- TreeItem *item = static_cast<TreeItem*>(index.internalPointer());
+ AbstractTreeItem *item = static_cast<AbstractTreeItem*>(index.internalPointer());
return item->data(index.column(), role);
}
Qt::ItemFlags TreeModel::flags(const QModelIndex &index) const {
- TreeItem *item;
+ AbstractTreeItem *item;
if(!index.isValid())
item = rootItem;
else
- item = static_cast<TreeItem *>(index.internalPointer());
+ item = static_cast<AbstractTreeItem *>(index.internalPointer());
return item->flags();
}
return QVariant();
}
+void TreeModel::itemDataChanged(int column) {
+ AbstractTreeItem *item = qobject_cast<AbstractTreeItem *>(sender());
+ QModelIndex itemIndex;
+
+ 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;
+ return;
+ }
+
+ int nextRow = parent->childCount();
+ beginInsertRows(indexByItem(parent), nextRow, nextRow);
+ parent->appendChild(child);
+ endInsertRows();
+
+ connect(child, SIGNAL(dataChanged(int)),
+ this, SLOT(itemDataChanged(int)));
+}
+
+
bool TreeModel::removeRow(int row, const QModelIndex &parent) {
if(row > rowCount(parent))
return false;
- TreeItem *item;
+ AbstractTreeItem *item;
if(!parent.isValid())
item = rootItem;
else
- item = static_cast<TreeItem*>(parent.internalPointer());
+ item = static_cast<AbstractTreeItem*>(parent.internalPointer());
beginRemoveRows(parent, row, row);
- item->removeChild(row);
+ item->removeChild(parent.column(), row);
endRemoveRows();
return true;
}
if(row + count - 1 > rowCount(parent) || row < 0 || count < 0)
return false;
- TreeItem *item;
+ AbstractTreeItem *item;
if(!parent.isValid())
item = rootItem;
else
- item = static_cast<TreeItem*>(parent.internalPointer());
+ item = static_cast<AbstractTreeItem *>(parent.internalPointer());
beginRemoveRows(parent, row, row + count - 1);
for(int i = row + count - 1; i >= 0; i--) {
- item->removeChild(i);
+ item->removeChild(parent.column(), i);
}
endRemoveRows();
return true;
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