/* -*- 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) 2004 Marc Maurer (uwog@uwog.net)
 * Copyright (C) 2004-2006 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 "WP3ContentListener.h"
#include "WP3FileStructure.h"
#include "WPXFileStructure.h"
#include "libwpd_internal.h"
#include "WP3SubDocument.h"
#include <algorithm>
#include <limits>

using namespace libwpd;

WP3ContentParsingState::WP3ContentParsingState():
	m_colSpan(1),
	m_rowSpan(1),
	m_textBuffer(),
	m_cellFillColor(),
	m_noteReference(),
	m_tableList()
{
}

WP3ContentParsingState::~WP3ContentParsingState()
{
}

WP3ContentListener::WP3ContentListener(std::list<WPXPageSpan> &pageList, librevenge::RVNGTextInterface *documentInterface) :
	WP3Listener(),
	WPXContentListener(pageList, documentInterface),
	m_parseState(new WP3ContentParsingState)
{
}

WP3ContentListener::~WP3ContentListener()
{
}


/****************************************
 public 'HLListenerImpl' functions
*****************************************/

void WP3ContentListener::insertCharacter(unsigned character)
{
	if (!isUndoOn())
	{
		unsigned tmpCharacter = _mapNonUnicodeCharacter(character);
		if (!m_ps->m_isSpanOpened)
			_openSpan();
		appendUCS4(m_parseState->m_textBuffer, tmpCharacter);
	}
}

void WP3ContentListener::insertTab()
{
	if (!isUndoOn())
	{
		if (!m_ps->m_isParagraphOpened && !m_ps->m_isListElementOpened)
		{
			if (m_ps->m_tabStops.empty())
				m_ps->m_textIndentByTabs += 0.5;
			else
				m_ps->m_textIndentByTabs = _getNextTabStop() - (m_ps->m_leftMarginByTabs  + m_ps->m_textIndentByParagraphIndentChange);
			m_ps->m_paragraphTextIndent = m_ps->m_textIndentByParagraphIndentChange
			                              + m_ps->m_textIndentByTabs;
			m_ps->m_paragraphMarginLeft = m_ps->m_leftMarginByPageMarginChange
			                              + m_ps->m_leftMarginByParagraphMarginChange + m_ps->m_leftMarginByTabs;
			m_ps->m_paragraphMarginRight = m_ps->m_rightMarginByPageMarginChange
			                               + m_ps->m_rightMarginByParagraphMarginChange + m_ps->m_rightMarginByTabs;

			m_ps->m_listReferencePosition = m_ps->m_paragraphMarginLeft + m_ps->m_paragraphTextIndent;
		}
		else
		{
			if (!m_ps->m_isSpanOpened)
				_openSpan();
			else
				_flushText();
			m_documentInterface->insertTab();
		}
	}
}

void WP3ContentListener::insertTab(const unsigned char tabType, const double /* tabPosition */)
{
	if (!isUndoOn())
	{
		if (!m_ps->m_isParagraphOpened && !m_ps->m_isListElementOpened)
		{
			switch (tabType)
			{
			case WP3_TAB_GROUP_CENTER:
				m_ps->m_tempParagraphJustification = WPX_PARAGRAPH_JUSTIFICATION_CENTER;
				return;
			case WP3_TAB_GROUP_FLUSH_RIGHT:
				m_ps->m_tempParagraphJustification = WPX_PARAGRAPH_JUSTIFICATION_RIGHT;
				return;
			default:
				insertTab();
				return;
			}
		}
		else
			insertTab();
	}
}

void WP3ContentListener::insertEOL()
{
	if (!isUndoOn())
	{
		if (m_ps->m_isTableOpened)
		{
			if (!m_ps->m_isTableRowOpened)
				insertRow();

			if (!m_ps->m_isTableCellOpened)
			{
				insertCell();
			}
		}

		if (!m_ps->m_isParagraphOpened && !m_ps->m_isListElementOpened)
			_openSpan();
		if (m_ps->m_isParagraphOpened)
			_closeParagraph();
		if (m_ps->m_isListElementOpened)
			_closeListElement();
	}

}

void WP3ContentListener::defineTable(const unsigned char position, const unsigned short leftOffset)
{
	if (!isUndoOn())
	{
		switch (position & 0x07)
		{
		case 0:
			m_ps->m_tableDefinition.m_positionBits = WPX_TABLE_POSITION_ALIGN_WITH_LEFT_MARGIN;
			break;
		case 1:
			m_ps->m_tableDefinition.m_positionBits = WPX_TABLE_POSITION_CENTER_BETWEEN_MARGINS;
			break;
		case 2:
			m_ps->m_tableDefinition.m_positionBits = WPX_TABLE_POSITION_ALIGN_WITH_RIGHT_MARGIN;
			break;
		case 3:
			m_ps->m_tableDefinition.m_positionBits = WPX_TABLE_POSITION_FULL;
			break;
		case 4:
			m_ps->m_tableDefinition.m_positionBits = WPX_TABLE_POSITION_ABSOLUTE_FROM_LEFT_MARGIN;
			break;
		default:
			// should not happen
			break;
		}
		// Note: WordPerfect has an offset from the left edge of the page. We translate it to the offset from the left margin
		m_ps->m_tableDefinition.m_leftOffset = _movePositionToFirstColumn((double)((double)leftOffset / (double)WPX_NUM_WPUS_PER_INCH)) - m_ps->m_paragraphMarginLeft;

		// remove all the old column information
		m_ps->m_tableDefinition.m_columns.clear();
		m_ps->m_tableDefinition.m_columnsProperties.clear();
		m_ps->m_numRowsToSkip.clear();
	}
}

void WP3ContentListener::addTableColumnDefinition(const unsigned width, const unsigned /* leftGutter */,
                                                  const unsigned /* rightGutter */, const unsigned attributes, const unsigned char alignment)
{
	if (!isUndoOn())
	{
		// define the new column
		WPXColumnDefinition colDef;
		colDef.m_width = (double)((double)width / (double)WPX_NUM_WPUS_PER_INCH);
		colDef.m_leftGutter = (double)((double)width / (double)WPX_NUM_WPUS_PER_INCH);
		colDef.m_rightGutter = (double)((double)width / (double)WPX_NUM_WPUS_PER_INCH);

		// add the new column definition to our table definition
		m_ps->m_tableDefinition.m_columns.push_back(colDef);

		WPXColumnProperties colProp;
		colProp.m_attributes = attributes;
		colProp.m_alignment = alignment;

		m_ps->m_tableDefinition.m_columnsProperties.push_back(colProp);

		// initialize the variable that tells us how many row to skip
		m_ps->m_numRowsToSkip.push_back(0);
	}
}

void WP3ContentListener::startTable()
{
	if (!isUndoOn())
	{
		// save the justification information. We will need it after the table ends.
		m_ps->m_paragraphJustificationBeforeTable = m_ps->m_paragraphJustification;
		if (m_ps->m_sectionAttributesChanged && !m_ps->m_isTableOpened && !m_ps->m_inSubDocument)
		{
			_closeSection();
			_openSection();
			m_ps->m_sectionAttributesChanged = false;
		}
		if (!m_ps->m_isPageSpanOpened && !m_ps->m_inSubDocument)
		{
			_openPageSpan();
			_openSection();
		}
		_openTable();
	}
}

void WP3ContentListener::insertRow()
{
	if (!isUndoOn())
		_openTableRow(0, true, false);
}

void WP3ContentListener::insertCell()
{
	if (!isUndoOn())
	{
		if (m_ps->m_currentTableRow < 0) // cell without a row, invalid
			throw ParseException();

		RGBSColor tmpCellBorderColor(0x00, 0x00, 0x00, 0x64);
		_openTableCell((unsigned char)m_parseState->m_colSpan, (unsigned char)m_parseState->m_rowSpan, 0x00000000,
		               m_parseState->m_cellFillColor.get(), nullptr, &tmpCellBorderColor, TOP);
		m_parseState->m_cellFillColor.reset();

		m_ps->m_isCellWithoutParagraph = true;
		m_ps->m_cellAttributeBits = 0x00000000;
	}
}

void WP3ContentListener::closeCell()
{
	if (!isUndoOn())
	{
		insertEOL();
		_closeTableCell();
		m_parseState->m_rowSpan = 1;
		m_parseState->m_colSpan = 1;
	}
}

void WP3ContentListener::closeRow()
{
	if (!isUndoOn())
	{
		closeCell();

		_closeTableRow();
	}
}

void WP3ContentListener::setTableCellSpan(const unsigned short colSpan, const unsigned short rowSpan)
{
	if (!isUndoOn())
	{
		m_parseState->m_colSpan=colSpan;
		m_parseState->m_rowSpan=rowSpan;
	}
}

void WP3ContentListener::setTableCellFillColor(const RGBSColor *cellFillColor)
{
	if (!isUndoOn())
		m_parseState->m_cellFillColor.reset(new RGBSColor(*cellFillColor));
}

void WP3ContentListener::endTable()
{
	if (!isUndoOn())
	{
		_flushText();
		_closeTable();
		// restore the justification that was there before the table.
		m_ps->m_paragraphJustification = m_ps->m_paragraphJustificationBeforeTable;
	}
}


/****************************************
 public 'parser' functions
*****************************************/

void WP3ContentListener::attributeChange(const bool isOn, const unsigned char attribute)
{
	if (!isUndoOn())
	{
		_closeSpan();

		unsigned textAttributeBit = 0;

		// FIXME: handle all the possible attribute bits
		switch (attribute)
		{
		case WP3_ATTRIBUTE_BOLD:
			textAttributeBit = WPX_BOLD_BIT;
			break;
		case WP3_ATTRIBUTE_ITALICS:
			textAttributeBit = WPX_ITALICS_BIT;
			break;
		case WP3_ATTRIBUTE_UNDERLINE:
			textAttributeBit = WPX_UNDERLINE_BIT;
			break;
		case WP3_ATTRIBUTE_OUTLINE:
			textAttributeBit = WPX_OUTLINE_BIT;
			break;
		case WP3_ATTRIBUTE_SHADOW:
			textAttributeBit = WPX_SHADOW_BIT;
			break;
		case WP3_ATTRIBUTE_REDLINE:
			textAttributeBit = WPX_REDLINE_BIT;
			break;
		case WP3_ATTRIBUTE_STRIKE_OUT:
			textAttributeBit = WPX_STRIKEOUT_BIT;
			break;
		case WP3_ATTRIBUTE_SUBSCRIPT:
			textAttributeBit = WPX_SUBSCRIPT_BIT;
			break;
		case WP3_ATTRIBUTE_SUPERSCRIPT:
			textAttributeBit = WPX_SUPERSCRIPT_BIT;
			break;
		case WP3_ATTRIBUTE_DOUBLE_UNDERLINE:
			textAttributeBit = WPX_DOUBLE_UNDERLINE_BIT;
			break;
		case WP3_ATTRIBUTE_EXTRA_LARGE:
			textAttributeBit = WPX_EXTRA_LARGE_BIT;
			break;
		case WP3_ATTRIBUTE_VERY_LARGE:
			textAttributeBit = WPX_VERY_LARGE_BIT;
			break;
		case WP3_ATTRIBUTE_LARGE:
			textAttributeBit = WPX_LARGE_BIT;
			break;
		case WP3_ATTRIBUTE_SMALL_PRINT:
			textAttributeBit = WPX_SMALL_PRINT_BIT;
			break;
		case WP3_ATTRIBUTE_FINE_PRINT:
			textAttributeBit = WPX_FINE_PRINT_BIT;
			break;
		case WP3_ATTRIBUTE_SMALL_CAPS:
			textAttributeBit = WPX_SMALL_CAPS_BIT;
			break;
		default:
			break;
		}

		if (isOn)
			m_ps->m_textAttributeBits |= textAttributeBit;
		else
			// reset the corresponding bit to 0 and leave the others intact
			m_ps->m_textAttributeBits &= ~textAttributeBit;
	}
}

void WP3ContentListener::undoChange(const unsigned char undoType, const unsigned short /* undoLevel */)
{
	if (undoType == 0x00) // begin invalid text
		setUndoOn(true);
	else if (undoType == 0x01) // end invalid text
		setUndoOn(false);
}

void WP3ContentListener::marginChange(const unsigned char side, const unsigned short margin)
{
	if (!isUndoOn())
	{
		auto marginInch = (double)((double)margin/ (double)WPX_NUM_WPUS_PER_INCH);

		switch (side)
		{
		case WPX_LEFT:
			if (m_ps->m_numColumns > 1)
			{
				m_ps->m_leftMarginByPageMarginChange = 0.0;
				m_ps->m_sectionMarginLeft = marginInch - m_ps->m_pageMarginLeft;
			}
			else
			{
				m_ps->m_leftMarginByPageMarginChange = marginInch - m_ps->m_pageMarginLeft;
				m_ps->m_sectionMarginLeft = 0.0;
			}
			m_ps->m_paragraphMarginLeft = m_ps->m_leftMarginByPageMarginChange
			                              + m_ps->m_leftMarginByParagraphMarginChange
			                              + m_ps->m_leftMarginByTabs;
			break;
		case WPX_RIGHT:
			if (m_ps->m_numColumns > 1)
			{
				m_ps->m_rightMarginByPageMarginChange = 0.0;
				m_ps->m_sectionMarginRight = marginInch - m_ps->m_pageMarginRight;
			}
			else
			{
				m_ps->m_rightMarginByPageMarginChange = marginInch - m_ps->m_pageMarginRight;
				m_ps->m_sectionMarginRight = 0.0;
			}
			m_ps->m_paragraphMarginRight = m_ps->m_rightMarginByPageMarginChange
			                               + m_ps->m_rightMarginByParagraphMarginChange
			                               + m_ps->m_rightMarginByTabs;
			break;
		default:
			break;
		}
		m_ps->m_listReferencePosition = m_ps->m_paragraphMarginLeft + m_ps->m_paragraphTextIndent;
	}
}

void WP3ContentListener::justificationChange(const unsigned char justification)
{
	if (!isUndoOn())
	{
		// could be done simply by:
		// m_ps->m_paragraphJustification = justification;
		switch (justification)
		{
		case 0x01:
			m_ps->m_paragraphJustification = WPX_PARAGRAPH_JUSTIFICATION_CENTER;
			break;
		case 0x02:
			m_ps->m_paragraphJustification = WPX_PARAGRAPH_JUSTIFICATION_RIGHT;
			break;
		case 0x03:
			m_ps->m_paragraphJustification = WPX_PARAGRAPH_JUSTIFICATION_FULL;
			break;
		case 0x04:
			m_ps->m_paragraphJustification = WPX_PARAGRAPH_JUSTIFICATION_FULL_ALL_LINES;
			break;
		case 0x05:
			m_ps->m_paragraphJustification = WPX_PARAGRAPH_JUSTIFICATION_DECIMAL_ALIGNED;
			break;
		default:  // case 0x00 and all other invalid things
			m_ps->m_paragraphJustification = WPX_PARAGRAPH_JUSTIFICATION_LEFT;
			break;
		}
	}
}

void WP3ContentListener::indentFirstLineChange(double offset)
{
	if (!isUndoOn())
	{
		m_ps->m_textIndentByParagraphIndentChange = offset;
		// This is necessary in case we have Indent First Line and Hard Back Tab
		// in the same time. The Hard Back Tab applies to the current paragraph
		// only. Indent First Line applies untill an new Indent First Line code.
		m_ps->m_paragraphTextIndent = m_ps->m_textIndentByParagraphIndentChange
		                              + m_ps->m_textIndentByTabs;
		m_ps->m_listReferencePosition = m_ps->m_paragraphMarginLeft + m_ps->m_paragraphTextIndent;
	}
}

void WP3ContentListener::setTabs(const bool isRelative, const std::vector<WPXTabStop> tabStops)
{
	if (!isUndoOn())
	{
		m_ps->m_isTabPositionRelative = isRelative;
		m_ps->m_tabStops = tabStops;
	}
}

void WP3ContentListener::columnChange(const WPXTextColumnType /* columnType */, const unsigned char numColumns,
                                      const std::vector<double> &columnWidth, const std::vector<bool> &isFixedWidth)
{
	if (!isUndoOn())
	{
		_openPageSpan();

		unsigned oldColumnNum = m_ps->m_numColumns;

		// In WP, the last column ends with a hard column break code.
		// In this case, we do not really want to insert any column break
		m_ps->m_isParagraphColumnBreak = false;
		m_ps->m_isTextColumnWithoutParagraph = false;

		double remainingSpace = m_ps->m_pageFormWidth - m_ps->m_pageMarginLeft - m_ps->m_sectionMarginLeft
		                        - m_ps->m_pageMarginRight - m_ps->m_sectionMarginRight
		                        - m_ps->m_leftMarginByPageMarginChange - m_ps->m_rightMarginByPageMarginChange;
		// determine the space that is to be divided between columns whose width is expressed in percentage of remaining space
		std::vector<WPXColumnDefinition> tmpColumnDefinition;
		tmpColumnDefinition.clear();
		if (numColumns > 1)
		{
			unsigned i;
			for (i=0; i<columnWidth.size(); i++)
			{
				if (isFixedWidth[i])
					remainingSpace -= columnWidth[i];
			}
			WPXColumnDefinition tmpColumn;
			for (i=0; i<numColumns; i++)
			{
				if (i == 0)
					tmpColumn.m_leftGutter = 0.0;
				else if (isFixedWidth[2*i-1])
					tmpColumn.m_leftGutter = 0.5f * columnWidth[2*i-1];
				else
					tmpColumn.m_leftGutter = 0.5f * remainingSpace * columnWidth[2*i-1];

				if (i >= (unsigned)(numColumns - 1))
					tmpColumn.m_rightGutter = 0.0;
				else if (isFixedWidth[2*i+1])
					tmpColumn.m_rightGutter = 0.5f * columnWidth[2*i+1];
				else
					tmpColumn.m_rightGutter = 0.5f * remainingSpace * columnWidth[2*i+1];

				if (isFixedWidth[2*i])
					tmpColumn.m_width = columnWidth[2*i];
				else
					tmpColumn.m_width = remainingSpace * columnWidth[2*i];

				tmpColumn.m_width += tmpColumn.m_leftGutter + tmpColumn.m_rightGutter;

				tmpColumnDefinition.push_back(tmpColumn);
			}
		}

		if (!m_ps->m_inSubDocument && !m_ps->m_isTableOpened)
			_closeSection();
		else
			m_ps->m_sectionAttributesChanged = true;
		m_ps->m_numColumns = numColumns;
		m_ps->m_textColumns = tmpColumnDefinition;
		m_ps->m_isTextColumnWithoutParagraph = true;
		if ((m_ps->m_numColumns > 1 && oldColumnNum <= 1) || (m_ps->m_numColumns <= 1 && oldColumnNum > 1))
		{
			m_ps->m_paragraphMarginLeft -= m_ps->m_leftMarginByPageMarginChange;
			m_ps->m_listReferencePosition -= m_ps->m_leftMarginByPageMarginChange;
			m_ps->m_paragraphMarginRight -= m_ps->m_rightMarginByPageMarginChange;
			std::swap(m_ps->m_leftMarginByPageMarginChange, m_ps->m_sectionMarginLeft);
			std::swap(m_ps->m_rightMarginByPageMarginChange, m_ps->m_sectionMarginRight);
			m_ps->m_paragraphMarginLeft += m_ps->m_leftMarginByPageMarginChange;
			m_ps->m_listReferencePosition += m_ps->m_leftMarginByPageMarginChange;
			m_ps->m_paragraphMarginRight += m_ps->m_rightMarginByPageMarginChange;
		}
	}
}


void WP3ContentListener::setTextColor(const RGBSColor *fontColor)
{
	if (!isUndoOn())
	{
		_closeSpan();

		*(m_ps->m_fontColor) = *fontColor;
	}
}

void WP3ContentListener::setTextFont(const librevenge::RVNGString &fontName)
{
	if (!isUndoOn())
	{
		_closeSpan();

		*(m_ps->m_fontName) = fontName;
	}
}

void WP3ContentListener::setFontSize(const unsigned short fontSize)
{
	if (!isUndoOn())
	{
		_closeSpan();

		m_ps->m_fontSize=double(fontSize);
	}
}

void WP3ContentListener::insertPageNumber(const librevenge::RVNGString &pageNumber)
{
	if (!isUndoOn())
	{
		if (!m_ps->m_isSpanOpened)
			_openSpan();
		m_parseState->m_textBuffer.append(pageNumber);
	}
}

void WP3ContentListener::insertNoteReference(const librevenge::RVNGString &noteReference)
{
	if (!isUndoOn())
	{
		m_parseState->m_noteReference = noteReference;
	}
}

void WP3ContentListener::insertNote(const WPXNoteType noteType, const WP3SubDocument *subDocument)
{
	if (!isUndoOn() && !m_ps->m_isNote)
	{
		if (!m_ps->m_isParagraphOpened)
			_openParagraph();
		else
		{
			_flushText();
			_closeSpan();
		}
		m_ps->m_isNote = true;
		WPXNumberingType numberingType = _extractWPXNumberingTypeFromBuf(m_parseState->m_noteReference, ARABIC);
		int number = _extractDisplayReferenceNumberFromBuf(m_parseState->m_noteReference, numberingType);
		m_parseState->m_noteReference.clear();

		librevenge::RVNGPropertyList propList;
		propList.insert("librevenge:number", number);

		if (noteType == FOOTNOTE)
			m_documentInterface->openFootnote(propList);
		else
			m_documentInterface->openEndnote(propList);

		handleSubDocument(subDocument, WPX_SUBDOCUMENT_NOTE, m_parseState->m_tableList, 0);

		if (noteType == FOOTNOTE)
			m_documentInterface->closeFootnote();
		else
			m_documentInterface->closeEndnote();
		m_ps->m_isNote = false;
	}
}

void WP3ContentListener::backTab()
{
	if (!isUndoOn() && !m_ps->m_isParagraphOpened && !m_ps->m_isListElementOpened)
	{
		if (m_ps->m_tabStops.empty())
			m_ps->m_textIndentByTabs -= 0.5f;
		else
			m_ps->m_textIndentByTabs = _getPreviousTabStop() - (m_ps->m_leftMarginByTabs  + m_ps->m_textIndentByParagraphIndentChange);

		m_ps->m_paragraphTextIndent = m_ps->m_textIndentByParagraphIndentChange
		                              + m_ps->m_textIndentByTabs;
		m_ps->m_paragraphMarginLeft = m_ps->m_leftMarginByPageMarginChange
		                              + m_ps->m_leftMarginByParagraphMarginChange + m_ps->m_leftMarginByTabs;
		m_ps->m_paragraphMarginRight = m_ps->m_rightMarginByPageMarginChange
		                               + m_ps->m_rightMarginByParagraphMarginChange + m_ps->m_rightMarginByTabs;

		m_ps->m_listReferencePosition = m_ps->m_paragraphMarginLeft + m_ps->m_paragraphTextIndent;
	}
}

void WP3ContentListener::leftIndent()
{
	if (!isUndoOn())
	{
		if (!m_ps->m_isParagraphOpened && !m_ps->m_isListElementOpened)
		{
			if (m_ps->m_tabStops.empty())
				m_ps->m_leftMarginByTabs += 0.5f;
			else
				m_ps->m_leftMarginByTabs = _getNextTabStop() - (m_ps->m_textIndentByTabs + m_ps->m_textIndentByParagraphIndentChange);

			if (m_ps->m_paragraphTextIndent != 0.0)
				m_ps->m_textIndentByTabs -= m_ps->m_paragraphTextIndent;

			m_ps->m_paragraphTextIndent = m_ps->m_textIndentByParagraphIndentChange
			                              + m_ps->m_textIndentByTabs;
			m_ps->m_paragraphMarginLeft = m_ps->m_leftMarginByPageMarginChange
			                              + m_ps->m_leftMarginByParagraphMarginChange + m_ps->m_leftMarginByTabs;
			m_ps->m_paragraphMarginRight = m_ps->m_rightMarginByPageMarginChange
			                               + m_ps->m_rightMarginByParagraphMarginChange + m_ps->m_rightMarginByTabs;

			m_ps->m_listReferencePosition = m_ps->m_paragraphMarginLeft + m_ps->m_paragraphTextIndent;
		}
		else
			insertTab();
	}
}

void WP3ContentListener::leftIndent(const double offset)
{
	if (!isUndoOn())
	{
		if (!m_ps->m_isParagraphOpened && !m_ps->m_isListElementOpened)
		{
			if (offset == 0.0)
				m_ps->m_leftMarginByTabs += 0.5f;
			else
				m_ps->m_leftMarginByTabs += (offset / 72.0);

			if (m_ps->m_paragraphTextIndent != 0.0)
				m_ps->m_textIndentByTabs -= m_ps->m_paragraphTextIndent;

			m_ps->m_paragraphTextIndent = m_ps->m_textIndentByParagraphIndentChange
			                              + m_ps->m_textIndentByTabs;
			m_ps->m_paragraphMarginLeft = m_ps->m_leftMarginByPageMarginChange
			                              + m_ps->m_leftMarginByParagraphMarginChange + m_ps->m_leftMarginByTabs;
			m_ps->m_paragraphMarginRight = m_ps->m_rightMarginByPageMarginChange
			                               + m_ps->m_rightMarginByParagraphMarginChange + m_ps->m_rightMarginByTabs;

			m_ps->m_listReferencePosition = m_ps->m_paragraphMarginLeft + m_ps->m_paragraphTextIndent;
		}
		else
			insertTab();
	}
}

void WP3ContentListener::leftRightIndent()
{
	if (!isUndoOn())
	{
		if (!m_ps->m_isParagraphOpened && !m_ps->m_isListElementOpened)
		{
			if (m_ps->m_tabStops.empty())
				m_ps->m_leftMarginByTabs += 0.5f;
			else
				m_ps->m_leftMarginByTabs = _getNextTabStop() - (m_ps->m_textIndentByTabs + m_ps->m_textIndentByParagraphIndentChange);

			if (m_ps->m_paragraphTextIndent != 0.0)
				m_ps->m_textIndentByTabs -= m_ps->m_paragraphTextIndent;

			m_ps->m_rightMarginByTabs = m_ps->m_leftMarginByTabs;

			m_ps->m_paragraphTextIndent = m_ps->m_textIndentByParagraphIndentChange
			                              + m_ps->m_textIndentByTabs;
			m_ps->m_paragraphMarginLeft = m_ps->m_leftMarginByPageMarginChange
			                              + m_ps->m_leftMarginByParagraphMarginChange + m_ps->m_leftMarginByTabs;
			m_ps->m_paragraphMarginRight = m_ps->m_rightMarginByPageMarginChange
			                               + m_ps->m_rightMarginByParagraphMarginChange + m_ps->m_rightMarginByTabs;

			m_ps->m_listReferencePosition = m_ps->m_paragraphMarginLeft + m_ps->m_paragraphTextIndent;
		}
		else
			insertTab();
	}
}

void WP3ContentListener::leftRightIndent(const double offset)
{
	if (!isUndoOn())
	{
		if (!m_ps->m_isParagraphOpened && !m_ps->m_isListElementOpened)
		{
			if (offset == 0.0)
				m_ps->m_leftMarginByTabs += 0.5f;
			else
				m_ps->m_leftMarginByTabs += (offset / 72.0);

			if (m_ps->m_paragraphTextIndent != 0.0)
				m_ps->m_textIndentByTabs -= m_ps->m_paragraphTextIndent;

			m_ps->m_rightMarginByTabs = m_ps->m_leftMarginByTabs;

			m_ps->m_paragraphTextIndent = m_ps->m_textIndentByParagraphIndentChange
			                              + m_ps->m_textIndentByTabs;
			m_ps->m_paragraphMarginLeft = m_ps->m_leftMarginByPageMarginChange
			                              + m_ps->m_leftMarginByParagraphMarginChange + m_ps->m_leftMarginByTabs;
			m_ps->m_paragraphMarginRight = m_ps->m_rightMarginByPageMarginChange
			                               + m_ps->m_rightMarginByParagraphMarginChange + m_ps->m_rightMarginByTabs;

			m_ps->m_listReferencePosition = m_ps->m_paragraphMarginLeft + m_ps->m_paragraphTextIndent;
		}
		else
			insertTab();
	}
}

void WP3ContentListener::insertPicture(double height, double width, double verticalOffset, double horizontalOffset, unsigned char leftColumn, unsigned char rightColumn,
                                       unsigned short figureFlags, const librevenge::RVNGBinaryData &binaryData)
{
	if (!isUndoOn())
	{
		if (!m_ps->m_isSpanOpened)
			_openSpan();

		librevenge::RVNGPropertyList propList;
		_handleFrameParameters(propList, height, width, verticalOffset, horizontalOffset, leftColumn, rightColumn, figureFlags);
		m_documentInterface->openFrame(propList);

		propList.clear();
		propList.insert("librevenge:mime-type", "image/pict");
		propList.insert("office:binary-data", binaryData);
		m_documentInterface->insertBinaryObject(propList);

		m_documentInterface->closeFrame();
	}
}

void WP3ContentListener::insertTextBox(double height, double width, double verticalOffset, double horizontalOffset, unsigned char leftColumn, unsigned char rightColumn,
                                       unsigned short figureFlags, const WP3SubDocument *subDocument, const WP3SubDocument *caption)
{
	if (!isUndoOn())
	{
		if (!m_ps->m_isSpanOpened)
			_openSpan();

		librevenge::RVNGPropertyList propList;
		_handleFrameParameters(propList, height, width, verticalOffset, horizontalOffset, leftColumn, rightColumn, figureFlags);
		m_documentInterface->openFrame(propList);

		propList.clear();

		if (subDocument || caption)
		{
			m_documentInterface->openTextBox(propList);

			// Positioned objects like text boxes are special beasts. They can contain all hierarchical elements up
			// to the level of sections. They cannot open or close a page span though.
			if (subDocument)
				handleSubDocument(subDocument, WPX_SUBDOCUMENT_TEXT_BOX, m_parseState->m_tableList, 0);
			if (caption)
				handleSubDocument(caption, WPX_SUBDOCUMENT_TEXT_BOX, m_parseState->m_tableList, 0);

			m_documentInterface->closeTextBox();
		}

		m_documentInterface->closeFrame();
	}
}

void WP3ContentListener::insertWP51Table(double height, double width, double verticalOffset, double horizontalOffset, unsigned char leftColumn, unsigned char rightColumn,
                                         unsigned short figureFlags, const WP3SubDocument *subDocument, const WP3SubDocument *caption)
{
	if (!isUndoOn())
	{
		if (!m_ps->m_isSpanOpened)
			_openSpan();

		librevenge::RVNGPropertyList propList;
		_handleFrameParameters(propList, height, width, verticalOffset, horizontalOffset, leftColumn, rightColumn, figureFlags);
		m_documentInterface->openFrame(propList);

		propList.clear();

		if (subDocument || caption)
		{
			m_documentInterface->openTextBox(propList);

			// Positioned objects like text boxes are special beasts. They can contain all hierarchical elements up
			// to the level of sections. They cannot open or close a page span though.
			if (subDocument)
				WPDocument::parseSubDocument(subDocument->getStream(), m_documentInterface, WPD_FILE_FORMAT_WP5);

			if (caption)
				handleSubDocument(caption, WPX_SUBDOCUMENT_TEXT_BOX, m_parseState->m_tableList, 0);

			m_documentInterface->closeTextBox();
		}

		m_documentInterface->closeFrame();
	}
}

void WP3ContentListener::_handleFrameParameters(librevenge::RVNGPropertyList &propList, double height, double width, double verticalOffset, double horizontalOffset,
                                                unsigned char /* leftColumn */, unsigned char /* rightColumn */, unsigned short figureFlags)
{
	propList.insert("svg:width", (double)((double)width/72.0));
	propList.insert("svg:height", (double)((double)height/72.0));

	if (figureFlags & 0x0080)
		propList.insert("style:wrap", "dynamic");
	else
		propList.insert("style:wrap", "none");

	if ((figureFlags & 0x0300) == 0x0000)     // paragraph
	{
		propList.insert("text:anchor-type", "paragraph");
		propList.insert("style:vertical-rel", "paragraph");
		propList.insert("style:horizontal-rel", "paragraph");
		switch (figureFlags & 0x0003)
		{
		case 0x01:
			if (horizontalOffset == 0.0)
				propList.insert("style:horizontal-pos", "right");
			else
			{
				propList.insert("style:horizontal-pos", "from-left");
				propList.insert("svg:x", (double)((double)horizontalOffset/72.0 - (double)width/72.0 +
				                                  (double)(m_ps->m_pageFormWidth - m_ps->m_pageMarginLeft - m_ps->m_pageMarginRight - m_ps->m_sectionMarginLeft
				                                           - m_ps->m_sectionMarginRight - m_ps->m_paragraphMarginLeft - m_ps->m_paragraphMarginRight)));
			}
			break;
		case 0x02:
			if (horizontalOffset == 0.0)
				propList.insert("style:horizontal-pos", "center");
			else
			{
				propList.insert("style:horizontal-pos", "from-left");
				propList.insert("svg:x", (double)((double)horizontalOffset/72.0 - (double)width/(2.0*72.0) +
				                                  (double)(m_ps->m_pageFormWidth - m_ps->m_pageMarginLeft - m_ps->m_pageMarginRight - m_ps->m_sectionMarginLeft
				                                           - m_ps->m_sectionMarginRight - m_ps->m_paragraphMarginLeft - m_ps->m_paragraphMarginRight)/2.0));
			}
			break;
		case 0x03:
			propList.insert("svg:width", (double)(m_ps->m_pageFormWidth - m_ps->m_pageMarginLeft - m_ps->m_pageMarginRight - m_ps->m_sectionMarginLeft
			                                      - m_ps->m_sectionMarginRight - m_ps->m_paragraphMarginLeft - m_ps->m_paragraphMarginRight));
			propList.insert("style:horizontal-pos", "center");
			break;
		case 0x00:
		default:
			if (horizontalOffset == 0.0)
				propList.insert("style:horizontal-pos", "left");
			else
			{
				propList.insert("style:horizontal-pos", "from-left");
				propList.insert("svg:x", (double)((double)horizontalOffset/72.0));
			}
			break;
		}

		if (verticalOffset == 0.0)
			propList.insert("style:vertical-pos", "top");
		else
		{
			propList.insert("style:vertical-pos", "from-top");
			propList.insert("svg:y", (double)((double)verticalOffset/72.0));
		}

	}
	else if ((figureFlags & 0x0300) == 0x0100)     // page
	{
		propList.insert("text:anchor-type", "char");

		if ((figureFlags & 0x1f08) == 0x0100)     // full page
		{
			propList.insert("svg:width", (double)(m_ps->m_pageFormWidth - m_ps->m_pageMarginLeft - m_ps->m_pageMarginRight));
			propList.insert("svg:height", (double)(m_ps->m_pageFormLength - m_ps->m_pageMarginTop - m_ps->m_pageMarginBottom));
			propList.insert("style:vertical-rel", "page-content");
			propList.insert("style:vertical-pos", "middle");
			propList.insert("style:horizontal-rel", "page-content");
			propList.insert("style:horizontal-pos", "center");
		}
		else if ((figureFlags & 0x1f08) == 0x1108)     // abs. page
		{
			propList.insert("style:vertical-rel", "page");
			propList.insert("style:vertical-pos", "from-top");
			propList.insert("svg:y", (double)((double)verticalOffset/72.0));
			propList.insert("style:horizontal-rel", "page-start-margin");
			propList.insert("style:horizontal-pos", "from-left");
			propList.insert("svg:x", (double)((double)horizontalOffset/72.0));
		}
		else
		{
			propList.insert("style:vertical-rel", "page-content");
			propList.insert("style:horizontal-rel", "page-content");
			switch ((figureFlags & 0x1c00) >> 10)
			{
			case 0x00:
				propList.insert("svg:height", (double)(m_ps->m_pageFormLength - m_ps->m_pageMarginTop - m_ps->m_pageMarginBottom));
				propList.insert("style:vertical-rel", "page-content");
				propList.insert("style:vertical-pos", "middle");
				break;
			case 0x01:
				if (verticalOffset == 0.0)
					propList.insert("style:vertical-pos", "top");
				else
				{
					propList.insert("style:vertical-pos", "from-top");
					auto newPosition = (double)((double)verticalOffset/72.0);
					if (newPosition > (double)(m_ps->m_pageFormLength - m_ps->m_pageMarginTop - m_ps->m_pageMarginBottom
					                           - (double)height/72.0))
						newPosition = (double)(m_ps->m_pageFormLength - m_ps->m_pageMarginTop - m_ps->m_pageMarginBottom
						                       - (double)height/72.0);
					propList.insert("svg:y", newPosition);
				}
				break;
			case 0x02:
				if (verticalOffset == 0.0)
					propList.insert("style:vertical-pos", "middle");
				else
				{
					propList.insert("style:vertical-pos", "from-top");
					auto newPosition = (double)((m_ps->m_pageFormLength - m_ps->m_pageMarginTop - m_ps->m_pageMarginBottom
					                             - (double)height/72.0)/2.0);
					if (newPosition > (double)(m_ps->m_pageFormLength - m_ps->m_pageMarginTop - m_ps->m_pageMarginBottom
					                           - (double)height/72.0))
						newPosition = (double)(m_ps->m_pageFormLength - m_ps->m_pageMarginTop - m_ps->m_pageMarginBottom
						                       - (double)height/72.0);
					propList.insert("svg:y", newPosition);
				}
				break;
			case 0x03:
				if (verticalOffset == 0.0)
					propList.insert("style:vertical-pos", "bottom");
				else
				{
					propList.insert("style:vertical-pos", "from-top");
					auto newPosition = (double)(m_ps->m_pageFormLength - m_ps->m_pageMarginTop - m_ps->m_pageMarginBottom
					                            - (double)height/72.0 + (double)verticalOffset/72.0);
					if (newPosition > (double)(m_ps->m_pageFormLength - m_ps->m_pageMarginTop - m_ps->m_pageMarginBottom
					                           - (double)height/72.0))
						newPosition = (double)(m_ps->m_pageFormLength - m_ps->m_pageMarginTop - m_ps->m_pageMarginBottom
						                       - (double)height/72.0);
					propList.insert("svg:y", newPosition);
				}
				break;
			case 0x04:
				propList.insert("style:vertical-rel", "page");
				propList.insert("style:vertical-pos", "from-top");
				propList.insert("svg:y", (double)((double)verticalOffset/72.0));
				break;
			default:
				break;
			}

			switch (figureFlags & 0x0003)
			{
			case 0x00:
				if (horizontalOffset == 0.0)
					propList.insert("style:horizontal-pos", "left");
				else
				{
					propList.insert("style:horizontal-pos", "from-left");
					propList.insert("svg:x", (double)((double)horizontalOffset/72.0));
				}
				break;
			case 0x01:
				if (horizontalOffset == 0.0)
					propList.insert("style:horizontal-pos", "right");
				else
				{
					propList.insert("style:horizontal-pos", "from-left");
					propList.insert("svg:x", (double)(m_ps->m_pageFormWidth - m_ps->m_pageMarginLeft - m_ps->m_pageMarginRight
					                                  - (double)width/72.0 + (double)horizontalOffset/72.0));
				}
				break;
			case 0x02:
				if (horizontalOffset == 0.0)
					propList.insert("style:horizontal-pos", "center");
				else
				{
					propList.insert("style:horizontal-pos", "from-left");
					propList.insert("svg:x", (double)((m_ps->m_pageFormWidth - m_ps->m_pageMarginLeft - m_ps->m_pageMarginRight
					                                   - (double)width/72.0)/2.0 + (double)horizontalOffset/72.0));
				}
				break;
			case 0x03:
				propList.insert("svg:width", (double)(m_ps->m_pageFormWidth - m_ps->m_pageMarginLeft - m_ps->m_pageMarginRight));
				propList.insert("style:horizontal-rel", "page-content");
				propList.insert("style:horizontal-pos", "center");
				break;
			default:
				break;
			}
		}
	}
	else if ((figureFlags & 0x0300) == 0x0200)     // character
	{
		propList.insert("text:anchor-type", "as-char");
		if ((figureFlags & 0x1c00) == 0x0000)
			propList.insert("style:vertical-rel", "baseline");
		else
			propList.insert("style:vertical-rel", "line");
		switch ((figureFlags & 0x1c00) >> 10)
		{
		case 0x01:
			if (verticalOffset == 0.0)
				propList.insert("style:vertical-pos", "top");
			else
			{
				propList.insert("style:vertical-pos", "from-top");
				propList.insert("svg:y", (double)((double)verticalOffset/72.0));
			}
			break;
		case 0x02:
			if (verticalOffset == 0.0)
				propList.insert("style:vertical-pos", "middle");
			else
			{
				propList.insert("style:vertical-pos", "from-top");
				propList.insert("svg:y", (double)((double)verticalOffset/72.0 - (double)height/(2.0*72.0)));
			}
			break;
		case 0x00:
		case 0x03:
			if (verticalOffset == 0.0)
				propList.insert("style:vertical-pos", "bottom");
			else
			{
				propList.insert("style:vertical-pos", "from-top");
				propList.insert("svg:y", (double)((double)verticalOffset/72.0 - (double)height/72.0));
			}
			break;
		case 0x04:
			break;
		default:
			break;
		}
	}
}

void WP3ContentListener::_handleSubDocument(const WPXSubDocument *subDocument, WPXSubDocumentType subDocumentType,
                                            WPXTableList /* tableList */, unsigned /* nextTableIndice */)
{
	// save our old parsing state on our "stack"
	auto oldParseState = std::move(m_parseState);

	m_parseState = std::unique_ptr<WP3ContentParsingState>(new WP3ContentParsingState());
	if (subDocumentType == WPX_SUBDOCUMENT_TEXT_BOX || subDocumentType == WPX_SUBDOCUMENT_COMMENT_ANNOTATION)
	{
		m_ps->m_pageMarginRight = 0.0;
		m_ps->m_pageMarginLeft = 0.0;
	}

	bool oldIsUndoOn = isUndoOn();
	setUndoOn(false);

	if (subDocumentType == WPX_SUBDOCUMENT_HEADER_FOOTER)
	{
		marginChange(WPX_LEFT, WPX_NUM_WPUS_PER_INCH);
		marginChange(WPX_RIGHT, WPX_NUM_WPUS_PER_INCH);
	}

	if (subDocument)
		static_cast<const WP3SubDocument *>(subDocument)->parse(this);
	else
		_openSpan();

	// Close the sub-document properly
	if (m_ps->m_isParagraphOpened)
		_closeParagraph();
	if (m_ps->m_isListElementOpened)
		_closeListElement();

	m_ps->m_currentListLevel = 0;
	_changeList();

#if 0
	_closeSection();
#endif

	// restore our old parsing state
	m_parseState = std::move(oldParseState);
	setUndoOn(oldIsUndoOn);
}

void WP3ContentListener::headerFooterGroup(const unsigned char /* headerFooterType */, const unsigned char /* occurrenceBits */, const std::shared_ptr<WP3SubDocument> &/*subDocument*/)
{
}

void WP3ContentListener::_openParagraph()
{

	if (m_ps->m_isTableOpened)
	{
		if (!m_ps->m_isTableRowOpened)
			insertRow();

		if (!m_ps->m_isTableCellOpened)
		{
			insertCell();
		}
	}

	WPXContentListener::_openParagraph();
}

/****************************************
 private functions
*****************************************/

void WP3ContentListener::_flushText()
{
	_insertText(m_parseState->m_textBuffer);
	m_parseState->m_textBuffer.clear();
}
/* vim:set shiftwidth=4 softtabstop=4 noexpandtab: */
