/*
 * Copyright (C) Ascensio System SIA, 2009-2026
 *
 * This program is a free software product. You can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License (AGPL)
 * version 3 as published by the Free Software Foundation, together with the
 * additional terms provided in the LICENSE file.
 *
 * This program is distributed WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
 * details, see the GNU AGPL at: https://www.gnu.org/licenses/agpl-3.0.html
 *
 * You can contact Ascensio System SIA by email at info@onlyoffice.com
 * or by postal mail at 20A-6 Ernesta Birznieka-Upisha Street, Riga,
 * LV-1050, Latvia, European Union.
 *
 * The interactive user interfaces in modified versions of the Program
 * are required to display Appropriate Legal Notices in accordance with
 * Section 5 of the GNU AGPL version 3.
 *
 * No trademark rights are granted under this License.
 *
 * All non-code elements of the Product, including illustrations,
 * icon sets, and technical writing content, are licensed under the
 * Creative Commons Attribution-ShareAlike 4.0 International License:
 * https://creativecommons.org/licenses/by-sa/4.0/legalcode
 *
 * This license applies only to such non-code elements and does not
 * modify or replace the licensing terms applicable to the Program's
 * source code, which remains licensed under the GNU Affero General
 * Public License v3.
 *
 * SPDX-License-Identifier: AGPL-3.0-only
 */

#include "GraphicsLayer.h"
#include <cmath>

namespace Aggplus
{
	CGraphicsLayer::CGraphicsLayer(BYTE *pBuffer, bool bExternalBuffer)
		: m_pBuffer(pBuffer), m_bExternalBuffer(NULL != pBuffer && bExternalBuffer)
	{
		SetDefaultSettings();
	}

	CGraphicsLayer::~CGraphicsLayer()
	{
		ClearBuffer();
	}

	bool CGraphicsLayer::Empty() const
	{
		return NULL == m_pBuffer;
	}
	
	BYTE *CGraphicsLayer::GetBuffer()
	{
		return m_pBuffer;
	}

	void CGraphicsLayer::SetDefaultSettings()
	{
		m_oSettings.m_uchOpacity = 255;
	}
	
	void CGraphicsLayer::ClearBuffer(bool bDeleteData)
	{
		if (bDeleteData && !m_bExternalBuffer)
			RELEASEARRAYOBJECTS(m_pBuffer);

		m_pBuffer = NULL;
	}

	void CGraphicsLayer::SetSettings(const TGraphicsLayerSettings &oSettings)
	{
		m_oSettings = oSettings;
	}

	const TGraphicsLayerSettings &CGraphicsLayer::GetSettings() const
	{
		return m_oSettings;
	}

	void CGraphicsLayer::SetOpacity(double dOpacity)
	{
		if (dOpacity > 1. || dOpacity < 0.)
			m_oSettings.m_uchOpacity = 255;
		else
		{
			m_oSettings.m_uchOpacity = ceil(255 * dOpacity);
		}
	}
	
	void CGraphicsLayer::SetOpacity(BYTE uchOpacity)
	{
		m_oSettings.m_uchOpacity = uchOpacity;
	}
}