/*
 * Olive Community Edition - Non-Linear Video Editor
 * Copyright (C) 2025 Olive CE Team
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "historywidget.h"

#include "core.h"

namespace olive
{

HistoryWidget::HistoryWidget(QWidget *parent)
	: QTreeView(parent)
{
	stack_ = Core::instance()->undo_stack();

	this->setModel(stack_);
	this->setRootIsDecorated(false);
	connect(stack_, &UndoStack::indexChanged, this,
			&HistoryWidget::indexChanged);
	connect(this->selectionModel(), &QItemSelectionModel::currentRowChanged,
			this, &HistoryWidget::currentRowChanged);
}

void HistoryWidget::indexChanged(int i)
{
	this->selectionModel()->select(this->model()->index(i - 1, 0),
								   QItemSelectionModel::ClearAndSelect |
									   QItemSelectionModel::Rows);
}

void HistoryWidget::currentRowChanged(const QModelIndex &current,
									  const QModelIndex &previous)
{
	size_t jump_to = (current.row() + 1);
	stack_->jump(jump_to);
}

}