pgLab/pglab/HorizontalProxyModel.cpp

#include "HorizontalProxyModel.h"
/*
 * Code borrowed from: https://stackoverflow.com/questions/21653253/how-to-change-orientation-of-qt-tableview
 */


HorizontalProxyModel::HorizontalProxyModel(QObject *parent)
	: QIdentityProxyModel(parent)
{
}

QModelIndex HorizontalProxyModel::mapToSource(const QModelIndex &proxyIndex) const
{
	if (sourceModel()) {
		return sourceModel()->index(proxyIndex.column(), proxyIndex.row());
	}
	else {
		return QModelIndex();
	}
}

QModelIndex HorizontalProxyModel::mapFromSource(const QModelIndex &sourceIndex) const
{
	return index(sourceIndex.column(), sourceIndex.row());
}

QModelIndex HorizontalProxyModel::index(int row, int column, const QModelIndex &) const
{
	return createIndex(row, column, nullptr);
}

QModelIndex HorizontalProxyModel::parent(const QModelIndex &) const
{
	return QModelIndex();
}

int HorizontalProxyModel::rowCount(const QModelIndex &) const
{
	return sourceModel() ? sourceModel()->columnCount() : 0;
}

int HorizontalProxyModel::columnCount(const QModelIndex &) const
{
  return sourceModel() ? sourceModel()->rowCount() : 0;
}

QVariant HorizontalProxyModel::headerData(
		   int section, Qt::Orientation orientation, int role) const
{
	if (!sourceModel()) {
		return QVariant();
	}
	Qt::Orientation new_orientation = orientation == Qt::Horizontal ?
			Qt::Vertical : Qt::Horizontal;
	return sourceModel()->headerData(section, new_orientation, role);
}