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111 lines
2.3 KiB
C++
111 lines
2.3 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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#include "qt-models/treemodel.h"
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#include "core/metrics.h"
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TreeItem::TreeItem()
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{
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parent = NULL;
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}
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TreeItem::~TreeItem()
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{
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qDeleteAll(children);
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}
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Qt::ItemFlags TreeItem::flags(const QModelIndex &index) const
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{
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Q_UNUSED(index);
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return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
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}
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int TreeItem::row() const
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{
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if (parent)
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return parent->children.indexOf(const_cast<TreeItem *>(this));
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return 0;
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}
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QVariant TreeItem::data(int column, int role) const
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{
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Q_UNUSED(column);
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Q_UNUSED(role);
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return QVariant();
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}
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TreeModel::TreeModel(QObject *parent) : QAbstractItemModel(parent)
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{
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columns = 0; // I'm not sure about this one - I can't see where it gets initialized
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rootItem = new TreeItem();
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}
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TreeModel::~TreeModel()
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{
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delete rootItem;
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}
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QVariant TreeModel::data(const QModelIndex &index, int role) const
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{
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if (!index.isValid())
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return QVariant();
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TreeItem *item = static_cast<TreeItem *>(index.internalPointer());
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QVariant val = item->data(index.column(), role);
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if (role == Qt::FontRole && !val.isValid())
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return defaultModelFont();
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else
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return val;
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}
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bool TreeItem::setData(const QModelIndex &index, const QVariant &value, int role)
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{
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Q_UNUSED(index);
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Q_UNUSED(value);
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Q_UNUSED(role);
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return false;
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}
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QModelIndex TreeModel::index(int row, int column, const QModelIndex &parent) const
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{
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if (!hasIndex(row, column, parent))
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return QModelIndex();
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TreeItem *parentItem = (!parent.isValid()) ? rootItem : static_cast<TreeItem *>(parent.internalPointer());
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TreeItem *childItem = parentItem->children[row];
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return (childItem) ? createIndex(row, column, childItem) : QModelIndex();
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}
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QModelIndex TreeModel::parent(const QModelIndex &index) const
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{
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if (!index.isValid())
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return QModelIndex();
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TreeItem *childItem = static_cast<TreeItem *>(index.internalPointer());
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TreeItem *parentItem = childItem->parent;
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if (parentItem == rootItem || !parentItem)
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return QModelIndex();
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return createIndex(parentItem->row(), 0, parentItem);
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}
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int TreeModel::rowCount(const QModelIndex &parent) const
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{
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TreeItem *parentItem;
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if (!parent.isValid())
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parentItem = rootItem;
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else
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parentItem = static_cast<TreeItem *>(parent.internalPointer());
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int amount = parentItem->children.count();
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return amount;
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}
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int TreeModel::columnCount(const QModelIndex &parent) const
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{
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Q_UNUSED(parent);
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return columns;
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}
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