C++ (Cpp) GraphItem::Child示例

示例#1

QModelIndex GraphModel::index(int row, int column, const QModelIndex &parent) const
{
    if (!hasIndex(row, column, parent))
	{
		return QModelIndex();
	}

    GraphItem *parentItem = NULL;
	if (!parent.isValid())
	{
		parentItem = rootItem;
	}
    else
	{
		parentItem = static_cast<GraphItem*>(parent.internalPointer());
	}

    GraphItem *childItem = parentItem->Child(row);
    if (childItem)
	{
		return createIndex(row, column, childItem);
	}

	return QModelIndex();
}

示例#2

文件： GraphModel.cpp 项目： droidenko/dava.framework

QModelIndex GraphModel::index(int row, int column, const QModelIndex &parent) const
{
    if (!hasIndex(row, column, parent))
	{
		return QModelIndex();
	}

    GraphItem *parentItem = ParentItem(parent);
    GraphItem *childItem = parentItem->Child(row);
    if (childItem)
	{
		return createIndex(row, column, childItem);
	}

	return QModelIndex();
}