/***

  Olive - Non-Linear Video Editor
  Copyright (C) 2022 Olive Team
  Modifications Copyright (C) 2025 mikesolar

  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/>.

***/

#ifndef NODEVIEWCOMMON_H
#define NODEVIEWCOMMON_H

#include <QtGlobal>

#include "common/define.h"

namespace olive
{

class NodeViewCommon {
public:
	enum FlowDirection {
		kInvalidDirection = -1,
		kTopToBottom,
		kBottomToTop,
		kLeftToRight,
		kRightToLeft
	};

	static Qt::Orientation GetFlowOrientation(FlowDirection dir)
	{
		if (dir == kTopToBottom || dir == kBottomToTop) {
			return Qt::Vertical;
		} else {
			return Qt::Horizontal;
		}
	}

	static bool IsFlowVertical(FlowDirection dir)
	{
		return dir == kTopToBottom || dir == kBottomToTop;
	}

	static bool IsFlowHorizontal(FlowDirection dir)
	{
		return dir == kLeftToRight || dir == kRightToLeft;
	}

	static bool DirectionsAreOpposing(FlowDirection a, FlowDirection b)
	{
		return ((a == NodeViewCommon::kLeftToRight &&
				 b == NodeViewCommon::kRightToLeft) ||
				(a == NodeViewCommon::kRightToLeft &&
				 b == NodeViewCommon::kLeftToRight) ||
				(a == NodeViewCommon::kTopToBottom &&
				 b == NodeViewCommon::kBottomToTop) ||
				(a == NodeViewCommon::kBottomToTop &&
				 b == NodeViewCommon::kTopToBottom));
	}
};

}

#endif // NODEVIEWCOMMON_H