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#include "documentoutlinemodel.hpp"
#include <QModelIndex>
DocumentOutlineModel::DocumentOutlineModel() :
QAbstractItemModel(),
root()
{
}
void DocumentOutlineModel::beginBuild()
{
beginResetModel();
root = Node {
nullptr,
"<ROOT>",
0,
QVector<Node> { },
};
}
void DocumentOutlineModel::appendH1(const QString &title)
{
root.children.append(Node {
&root,
title,
1,
QVector<Node> { },
});
}
void DocumentOutlineModel::appendH2(const QString &title)
{
if(root.children.size() == 0) {
root.children.append(Node {
&root,
"<missing layer>",
1,
QVector<Node> { },
});
}
auto & parent = root.children.last();
parent.children.append(Node {
&parent,
title,
2,
QVector<Node> { },
});
}
void DocumentOutlineModel::appendH3(const QString &title)
{
}
void DocumentOutlineModel::endBuild()
{
endResetModel();
}
QModelIndex DocumentOutlineModel::index(int row, int column, const QModelIndex &parent) const
{
if (not hasIndex(row, column, parent))
return QModelIndex();
Node const * parentItem;
if (!parent.isValid())
parentItem = &this->root;
else
parentItem = static_cast<Node*>(parent.internalPointer());
Node const * childItem = &parentItem->children[row];
if (childItem)
return createIndex(row, column, reinterpret_cast<quintptr>(childItem));
return QModelIndex();
}
QModelIndex DocumentOutlineModel::parent(const QModelIndex &child) const
{
if (!child.isValid())
return QModelIndex();
Node const *childItem = static_cast<Node const *>(child.internalPointer());
Node const * parent = childItem->parent;
if (parent == &root)
return QModelIndex();
return createIndex(
parent - parent->parent->children.data(),
0,
reinterpret_cast<quintptr>(parent));
}
int DocumentOutlineModel::rowCount(const QModelIndex &parent) const
{
Node const *parentItem;
if (parent.column() > 0)
return 0;
if (!parent.isValid())
parentItem = &root;
else
parentItem = static_cast<Node const *>(parent.internalPointer());
return parentItem->children.size();
}
int DocumentOutlineModel::columnCount(const QModelIndex &parent) const
{
return 1;
}
QVariant DocumentOutlineModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
return QVariant();
if (index.column() != 0)
return QVariant();
if (role != Qt::DisplayRole)
return QVariant();
Node const *item = static_cast<Node const*>(index.internalPointer());
return item->title;
}
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