/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */

/* libwpd

 * Version: MPL 2.0 / LGPLv2.1+

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * Major Contributor(s):

 * Copyright (C) 2003 William Lachance (wrlach@gmail.com)

 * Copyright (C) 2004 Marc Maurer (uwog@uwog.net)

 * Copyright (C) 2006 Fridrich Strba (fridrich.strba@bluewin.ch)

 *

 * For minor contributions see the git repository.

 *

 * Alternatively, the contents of this file may be used under the terms

 * of the GNU Lesser General Public License Version 2.1 or later

 * (LGPLv2.1+), in which case the provisions of the LGPLv2.1+ are

 * applicable instead of those above.

 *

 * For further information visit http://libwpd.sourceforge.net

 */

/* "This product is not manufactured, approved, or supported by

 * Corel Corporation or Corel Corporation Limited."

 */

#include "WP1StylesListener.h"

#include "WP1FileStructure.h"

#include "WPXFileStructure.h"

#include "libwpd_internal.h"

WP1StylesListener::WP1StylesListener(std::list<WPXPageSpan> &pageList, std::vector<WP1SubDocument *> &subDocuments) :

	WP1Listener(),

	WPXStylesListener(pageList),

	m_currentPage(),

	m_nextPage(),

	m_subDocuments(subDocuments),

	m_tempMarginLeft(1.0),

	m_tempMarginRight(1.0),

	m_currentPageHasContent(false),

	m_isSubDocument(false),

	m_pageListHardPageMark(m_pageList.end())

{

}

void WP1StylesListener::endDocument()

{

	insertBreak(WPX_SOFT_PAGE_BREAK); // pretend we just had a soft page break (for the last page)

}

void WP1StylesListener::endSubDocument()

{

	insertBreak(WPX_SOFT_PAGE_BREAK); // pretend we just had a soft page break (for the last page)

}

void WP1StylesListener::insertBreak(unsigned char breakType)

{

	if (m_isSubDocument)

		return;

	if (!isUndoOn())

	{

		WPXTableList tableList;

		switch (breakType)

		{

		case WPX_PAGE_BREAK:

		case WPX_SOFT_PAGE_BREAK:

		{

			if ((m_pageList.size() > 0) && (m_currentPage==m_pageList.back())

			        && (m_pageListHardPageMark != m_pageList.end()))

			{

				m_pageList.back().setPageSpan(m_pageList.back().getPageSpan() + 1);

			}

			else

			{

				m_pageList.push_back(WPXPageSpan(m_currentPage));

				if (m_pageListHardPageMark == m_pageList.end())

				{

					--m_pageListHardPageMark;

				}

			}

			m_currentPage = WPXPageSpan(m_pageList.back(), 0.0, 0.0);

			m_currentPage.setPageSpan(1);

			auto headerFooterList = m_nextPage.getHeaderFooterList();

			for (const auto &hf : headerFooterList)

			{

				if (hf.getOccurrence() != NEVER)

				{

					m_currentPage.setHeaderFooter(hf.getType(), hf.getInternalType(),

					                              hf.getOccurrence(), hf.getSubDocument(), hf.getTableList());

					_handleSubDocument(hf.getSubDocument(), WPX_SUBDOCUMENT_HEADER_FOOTER, hf.getTableList());

				}

				else

				{

					m_currentPage.setHeaderFooter(hf.getType(), hf.getInternalType(),

					                              hf.getOccurrence(), nullptr, hf.getTableList());

				}

			}

			m_nextPage = WPXPageSpan();

			m_currentPageHasContent = false;

		}

		break;

		default:

			break;

		}

		if (breakType == WPX_PAGE_BREAK)

		{

			m_pageListHardPageMark = m_pageList.end();

			m_currentPage.setMarginLeft(m_tempMarginLeft);

			m_currentPage.setMarginRight(m_tempMarginRight);

		}

	}

}

void WP1StylesListener::marginReset(unsigned short leftMargin, unsigned short rightMargin)

{

	if (!isUndoOn())

	{

		if (m_isSubDocument)

			return; // do not collect L/R margin information in sub documents

		std::list<WPXPageSpan>::iterator Iter;

		double marginInch = 0.0;

		if (leftMargin)

		{

			marginInch = (double)((double)leftMargin / 72.0);

			WPD_DEBUG_MSG(("Left Margin: %ipts = %.4finch\n", leftMargin, marginInch));

			if (!m_currentPageHasContent && (m_pageListHardPageMark == m_pageList.end()))

				m_currentPage.setMarginLeft(marginInch);

			else if (m_currentPage.getMarginLeft() > marginInch)

			{

				// Change the margin for the current page and for all pages in the list since the last Hard Break

				m_currentPage.setMarginLeft(marginInch);

				for (Iter = m_pageListHardPageMark; Iter != m_pageList.end(); ++Iter)

				{

					(*Iter).setMarginLeft(marginInch);

				}

			}

			m_tempMarginLeft = marginInch;

		}

		if (rightMargin)

		{

			marginInch = (double)((double)rightMargin / 72.0);

			WPD_DEBUG_MSG(("Right Margin: %ipts = %.4finch\n", rightMargin, marginInch));

			if (!m_currentPageHasContent && (m_pageListHardPageMark == m_pageList.end()))

				m_currentPage.setMarginRight(marginInch);

			else if (m_currentPage.getMarginRight() > marginInch)

			{

				// Change the margin for the current page and for all pages in the list since the last Hard Break

				m_currentPage.setMarginRight(marginInch);

				for (Iter = m_pageListHardPageMark; Iter != m_pageList.end(); ++Iter)

				{

					(*Iter).setMarginRight(marginInch);

				}

			}

			m_tempMarginRight = marginInch;

		}

	}

}

void WP1StylesListener::topMarginSet(unsigned short topMargin)

{

	if (!isUndoOn())

	{

		if (!topMargin) return;

		double marginInch = (double)((double)topMargin / 72.0);

		m_currentPage.setMarginTop(marginInch);

	}

}

void WP1StylesListener::bottomMarginSet(unsigned short bottomMargin)

{

	if (!isUndoOn())

	{

		if (!bottomMargin) return;

		double marginInch = (double)((double)bottomMargin / 72.0);

		m_currentPage.setMarginBottom(marginInch);

	}

}

void WP1StylesListener::headerFooterGroup(unsigned char headerFooterDefinition, WP1SubDocument *subDocument)

{

	if (subDocument)

		m_subDocuments.push_back(subDocument);

	if (!isUndoOn())

	{

		bool tempCurrentPageHasContent = m_currentPageHasContent;

		unsigned char headerFooterType = (unsigned char)(headerFooterDefinition & 0x03);

		WPXHeaderFooterType wpxType = ((headerFooterType <= WPX_HEADER_B) ? HEADER : FOOTER);

		unsigned char occurrenceBits = (unsigned char)((headerFooterDefinition & 0x1C) >> 2);

		WPD_DEBUG_MSG(("WordPerfect: headerFooterGroup (headerFooterType: %i, occurrenceBits: %i)\n",

		               headerFooterType, occurrenceBits));

		WPXHeaderFooterOccurrence wpxOccurrence;

		if (occurrenceBits & WP1_HEADER_FOOTER_GROUP_ALL_BIT)

			wpxOccurrence = ALL;

		else if (occurrenceBits & WP1_HEADER_FOOTER_GROUP_EVEN_BIT)

			wpxOccurrence = EVEN;

		else if (occurrenceBits & WP1_HEADER_FOOTER_GROUP_ODD_BIT)

			wpxOccurrence = ODD;

		else

			wpxOccurrence = NEVER;

		WPXTableList tableList;

		if ((wpxType == HEADER) && tempCurrentPageHasContent)

			m_nextPage.setHeaderFooter(wpxType, headerFooterType, wpxOccurrence, subDocument, tableList);

		else /* FOOTER || !tempCurrentPageHasContent */

		{

			if (wpxOccurrence != NEVER)

			{

				m_currentPage.setHeaderFooter(wpxType, headerFooterType, wpxOccurrence, subDocument, tableList);

				_handleSubDocument(subDocument, WPX_SUBDOCUMENT_HEADER_FOOTER, tableList);

			}

			else

				m_currentPage.setHeaderFooter(wpxType, headerFooterType, wpxOccurrence, nullptr, tableList);

		}

		m_currentPageHasContent = tempCurrentPageHasContent;

	}

}

void WP1StylesListener::suppressPageCharacteristics(unsigned char suppressCode)

{

	if (!isUndoOn())

	{

		if (suppressCode & 0x01)

		{

			m_currentPage.setHeadFooterSuppression(WPX_HEADER_A, true);

			m_currentPage.setHeadFooterSuppression(WPX_HEADER_B, true);

			m_currentPage.setHeadFooterSuppression(WPX_FOOTER_A, true);

			m_currentPage.setHeadFooterSuppression(WPX_FOOTER_B, true);

		}

		if (suppressCode & 0x10)

			m_currentPage.setHeadFooterSuppression(WPX_HEADER_A, true);

		if (suppressCode & 0x20)

			m_currentPage.setHeadFooterSuppression(WPX_HEADER_B, true);

		if (suppressCode & 0x40)

			m_currentPage.setHeadFooterSuppression(WPX_FOOTER_A, true);

		if (suppressCode & 0x80)

			m_currentPage.setHeadFooterSuppression(WPX_FOOTER_B, true);

	}

}

void WP1StylesListener::_handleSubDocument(const WPXSubDocument *subDocument, WPXSubDocumentType subDocumentType,

                                           WPXTableList /* tableList */, int /* nextTableIndice */)

{

	if (!isUndoOn())

	{

		bool oldIsSubDocument = m_isSubDocument;

		m_isSubDocument = true;

		if (subDocumentType == WPX_SUBDOCUMENT_HEADER_FOOTER)

		{

			bool oldCurrentPageHasContent = m_currentPageHasContent;

			if (subDocument)

				static_cast<const WP1SubDocument *>(subDocument)->parse(this);

			m_currentPageHasContent = oldCurrentPageHasContent;

		}

		else

		{

			if (subDocument)

				static_cast<const WP1SubDocument *>(subDocument)->parse(this);

		}

		m_isSubDocument = oldIsSubDocument;

	}

}

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