/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* libwpd
 * 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)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 *
 * For further information visit http://libwpd.sourceforge.net
 */

/* "This product is not manufactured, approved, or supported by
 * Corel Corporation or Corel Corporation Limited."
 */

#include "WP5StylesListener.h"
#include "WPXTable.h"
#include "WP5FileStructure.h"
#include "WPXFileStructure.h"
#include "libwpd_internal.h"
#include "WP5SubDocument.h"

WP5StylesListener::WP5StylesListener(std::list<WPXPageSpan> &pageList, WPXTableList tableList, std::vector<WP5SubDocument *> &subDocuments) :
	WP5Listener(),
	WPXStylesListener(pageList),
	m_currentPage(),
	m_nextPage(),
	m_tableList(tableList),
	m_currentTable(0),
	m_tempMarginLeft(1.0),
	m_tempMarginRight(1.0),
	m_currentPageHasContent(false),
	m_isSubDocument(false),
	m_subDocuments(subDocuments),
	m_pageListHardPageMark(m_pageList.end())
{
}

void WP5StylesListener::endDocument()
{
	insertBreak(WPX_SOFT_PAGE_BREAK); // pretend we just had a soft page break (for the last page)
}

void WP5StylesListener::endSubDocument()
{
	insertBreak(WPX_SOFT_PAGE_BREAK); // pretend we just had a soft page break (for the last page)
}

void WP5StylesListener::insertBreak(uint8_t 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);

		for(std::vector<WPXHeaderFooter>::const_iterator HFiter = (m_nextPage.getHeaderFooterList()).begin();
		        HFiter != (m_nextPage.getHeaderFooterList()).end(); HFiter++)
		{
			if ((*HFiter).getOccurence() != NEVER)
			{
				m_currentPage.setHeaderFooter((*HFiter).getType(), (*HFiter).getInternalType(),
				                              (*HFiter).getOccurence(), (*HFiter).getSubDocument(), (*HFiter).getTableList());
				_handleSubDocument((*HFiter).getSubDocument(), WPX_SUBDOCUMENT_HEADER_FOOTER, (*HFiter).getTableList());
			}
			else
				m_currentPage.setHeaderFooter((*HFiter).getType(), (*HFiter).getInternalType(),
				                              (*HFiter).getOccurence(), 0, (*HFiter).getTableList());
		}
		m_nextPage = WPXPageSpan();
		m_currentPageHasContent = false;
		break;
	}
	if (breakType == WPX_PAGE_BREAK)
	{
		m_pageListHardPageMark = m_pageList.end();
		m_currentPage.setMarginLeft(m_tempMarginLeft);
		m_currentPage.setMarginRight(m_tempMarginRight);
	}
	//}
}

void WP5StylesListener::pageMarginChange(uint8_t side, uint16_t margin)
{
	//if (!isUndoOn())
	//{
	double marginInch = (double)((double)margin / (double)WPX_NUM_WPUS_PER_INCH);
	switch(side)
	{
	case WPX_TOP:
		m_currentPage.setMarginTop(marginInch);
		break;
	case WPX_BOTTOM:
		m_currentPage.setMarginBottom(marginInch);
		break;
	}
	//}
}

void WP5StylesListener::pageFormChange(uint16_t length, uint16_t width, WPXFormOrientation orientation)
{
	//if (!isUndoOn())
	//{
	double lengthInch = (double)((double)length / (double)WPX_NUM_WPUS_PER_INCH);
	double widthInch = (double)((double)width / (double)WPX_NUM_WPUS_PER_INCH);
	if (!m_currentPageHasContent)
	{
		m_currentPage.setFormLength(lengthInch);
		m_currentPage.setFormWidth(widthInch);
		m_currentPage.setFormOrientation(orientation);
	}
	//}
}


void WP5StylesListener::marginChange(uint8_t side, uint16_t margin)
{
	if (!isUndoOn())
	{
		if (m_isSubDocument)
			return;

		std::list<WPXPageSpan>::iterator Iter;
		double marginInch = (double)((double)margin / (double)WPX_NUM_WPUS_PER_INCH);
		switch(side)
		{
		case WPX_LEFT:
			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;
			break;
		case WPX_RIGHT:
			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;
			break;
		}

	}

}

void WP5StylesListener::headerFooterGroup(uint8_t headerFooterType, uint8_t occurenceBits, WP5SubDocument *subDocument)
{
	if (subDocument)
		m_subDocuments.push_back(subDocument);

	if (!isUndoOn())
	{
		WPD_DEBUG_MSG(("WordPerfect: headerFooterGroup (headerFooterType: %i, occurenceBits: %i)\n",
		               headerFooterType, occurenceBits));
		bool tempCurrentPageHasContent = m_currentPageHasContent;
		if (headerFooterType <= WP5_HEADER_FOOTER_GROUP_FOOTER_B)
		{
			WPXHeaderFooterType wpxType = ((headerFooterType <= WP5_HEADER_FOOTER_GROUP_HEADER_B) ? HEADER : FOOTER);

			WPXHeaderFooterOccurence wpxOccurence;
			if (occurenceBits & WP5_HEADER_FOOTER_GROUP_ALL_BIT)
				wpxOccurence = ALL;
			else if (occurenceBits & WP5_HEADER_FOOTER_GROUP_EVEN_BIT)
				wpxOccurence = EVEN;
			else if (occurenceBits & WP5_HEADER_FOOTER_GROUP_ODD_BIT)
				wpxOccurence = ODD;
			else
				wpxOccurence = NEVER;
			WPXTableList tableList;

			if ((wpxType == HEADER) && tempCurrentPageHasContent)
			{
				if (wpxOccurence != NEVER)
					m_nextPage.setHeaderFooter(wpxType, headerFooterType, wpxOccurence, subDocument, tableList);
				else
					m_nextPage.setHeaderFooter(wpxType, headerFooterType, wpxOccurence, 0, tableList);
			}
			else /* FOOTER || !tempCurrentPageHasContent */
			{
				if (wpxOccurence != NEVER)
				{
					m_currentPage.setHeaderFooter(wpxType, headerFooterType, wpxOccurence, subDocument, tableList);
					_handleSubDocument(subDocument, WPX_SUBDOCUMENT_HEADER_FOOTER, tableList);
				}
				else
					m_currentPage.setHeaderFooter(wpxType, headerFooterType, wpxOccurence, 0, tableList);
			}
		}
		m_currentPageHasContent = tempCurrentPageHasContent;
	}
}


void WP5StylesListener::suppressPageCharacteristics(uint8_t suppressCode)
{
	if (!isUndoOn())
	{
		WPD_DEBUG_MSG(("WordPerfect: suppressPageCharacteristics (suppressCode: %u)\n", suppressCode));
		if (suppressCode & WP5_PAGE_GROUP_SUPPRESS_HEADER_A)
			m_currentPage.setHeadFooterSuppression(WPX_HEADER_A, true);
		if (suppressCode & WP5_PAGE_GROUP_SUPPRESS_HEADER_B)
			m_currentPage.setHeadFooterSuppression(WPX_HEADER_B, true);
		if (suppressCode & WP5_PAGE_GROUP_SUPPRESS_FOOTER_A)
			m_currentPage.setHeadFooterSuppression(WPX_FOOTER_A, true);
		if (suppressCode & WP5_PAGE_GROUP_SUPPRESS_FOOTER_B)
			m_currentPage.setHeadFooterSuppression(WPX_FOOTER_B, true);
	}
}

void WP5StylesListener::startTable()
{
	if (!isUndoOn())
	{
		m_currentPageHasContent = true;
		m_currentTable = new WPXTable();
		m_tableList.add(m_currentTable);
	}
}

void WP5StylesListener::insertRow(uint16_t /* rowHeight */, bool /* isMinimumHeight */, bool /* isHeaderRow */)
{
	if (!isUndoOn())
	{
		m_currentPageHasContent = true;
		if (!m_currentTable)
			throw ParseException();
		m_currentTable->insertRow();
	}
}

void WP5StylesListener::insertCell(uint8_t colSpan, uint8_t rowSpan, uint8_t borderBits,
                                   const RGBSColor * /* cellFgColor */, const RGBSColor * /* cellBgColor */,
                                   const RGBSColor * /* cellBorderColor */, WPXVerticalAlignment /* cellVerticalAlignment */,
                                   bool /* useCellAttributes */, uint32_t /* cellAttributes */)
{
	if (!isUndoOn())
	{
		m_currentPageHasContent = true;
		if (!m_currentTable)
			throw ParseException();
		m_currentTable->insertCell(colSpan, rowSpan, borderBits);
	}
}

void WP5StylesListener::_handleSubDocument(const WPXSubDocument *subDocument, WPXSubDocumentType subDocumentType,
        WPXTableList tableList, int /* nextTableIndice */)
{
	// We don't want to actual insert anything in the case of a sub-document, but we
	// do want to capture whatever table-related information is within it..
	if (!isUndoOn())
	{
		bool oldIsSubDocument = m_isSubDocument;
		m_isSubDocument = true;
		if (subDocumentType == WPX_SUBDOCUMENT_HEADER_FOOTER)
		{
			bool oldCurrentPageHasContent = m_currentPageHasContent;
			WPXTable *oldCurrentTable = m_currentTable;
			WPXTableList oldTableList = m_tableList;
			m_tableList = tableList;

			if (subDocument)
				static_cast<const WP5SubDocument *>(subDocument)->parse(this);

			m_tableList = oldTableList;
			m_currentTable = oldCurrentTable;
			m_currentPageHasContent = oldCurrentPageHasContent;
		}
		else
		{
			if (subDocument)
				static_cast<const WP5SubDocument *>(subDocument)->parse(this);
		}
		m_isSubDocument = oldIsSubDocument;
	}
}
/* vim:set shiftwidth=4 softtabstop=4 noexpandtab: */