/*--------------------------------------------------------------------*//*:Ignore this sentence.
Copyright (C) 1999, 2001 SIL International. All rights reserved.

Distributable under the terms of either the Common Public License or the
GNU Lesser General Public License, as specified in the LICENSING.txt file.

File: GdlGlyphClass.cpp
Responsibility: Sharon Correll
Last reviewed: Not yet.

Description:
    Implements definitions of classes of glyphs..
-------------------------------------------------------------------------------*//*:End Ignore*/

/***********************************************************************************************
	Include files
***********************************************************************************************/
#include "main.h"

#ifdef _MSC_VER
#pragma hdrstop
#endif
#undef THIS_FILE
DEFINE_THIS_FILE

/***********************************************************************************************
	Forward declarations
***********************************************************************************************/

/***********************************************************************************************
	Local Constants and static variables
***********************************************************************************************/

//	None


/***********************************************************************************************
	Methods: Destruction
***********************************************************************************************/

GdlGlyphClassDefn::~GdlGlyphClassDefn()
{
	for (size_t i = 0; i < m_vpglfaAttrs.size(); ++i)
		delete m_vpglfaAttrs[i];
}


void GdlGlyphClassDefn::DeleteGlyphDefns()
{
	for (size_t i = 0; i < m_vpglfdMembers.size(); ++i)
	{
		if (dynamic_cast<GdlGlyphDefn * >(m_vpglfdMembers[i]))
			delete m_vpglfdMembers[i];
	}
}

void GdlGlyphIntersectionClassDefn::DeleteGlyphDefns()
{
	GdlGlyphClassDefn::DeleteGlyphDefns();
	for (size_t i = 0; i < m_vpglfdSets.size(); ++i)
	{
		if (dynamic_cast<GdlGlyphDefn * >(m_vpglfdSets[i]))
			delete m_vpglfdSets[i];
	}
}

void GdlGlyphDifferenceClassDefn::DeleteGlyphDefns()
{
	GdlGlyphClassDefn::DeleteGlyphDefns();
	if (dynamic_cast<GdlGlyphDefn * >(m_pglfdMinuend))
		delete m_pglfdMinuend;
	if (dynamic_cast<GdlGlyphDefn * >(m_pglfdSubtrahend))
		delete m_pglfdSubtrahend;
}

/***********************************************************************************************
	Methods: Post-parser
***********************************************************************************************/

/*----------------------------------------------------------------------------------------------
	Add a simple glyph to the class.
----------------------------------------------------------------------------------------------*/
GdlGlyphClassMember * GdlGlyphClassDefn::AddGlyphToClass(GrpLineAndFile const& lnf,
	GlyphType glft, int nFirst)
{
	GdlGlyphDefn * pglf = new GdlGlyphDefn(glft, nFirst);
	pglf->SetLineAndFile(lnf);
	AddMember(pglf, lnf);
	return pglf;
}

GdlGlyphClassMember * GdlGlyphClassDefn::AddGlyphToClass(GrpLineAndFile const& lnf,
	GlyphType glft, int nFirst, int nLast)
{
	GdlGlyphDefn * pglf = new GdlGlyphDefn(glft, nFirst, nLast);
	pglf->SetLineAndFile(lnf);
	AddMember(pglf, lnf);
	return pglf;
}

GdlGlyphClassMember * GdlGlyphClassDefn::AddGlyphToClass(GrpLineAndFile const& lnf,
	GlyphType glft, int nFirst, int nLast, utf16 wCodePage)
{
	GdlGlyphDefn * pglf = new GdlGlyphDefn(glft, nFirst, nLast, wCodePage);
	pglf->SetLineAndFile(lnf);
	AddMember(pglf, lnf);
	return pglf;
}

GdlGlyphClassMember * GdlGlyphClassDefn::AddGlyphToClass(GrpLineAndFile const& lnf,
	GlyphType glft, std::string staPostscript)
{
	GdlGlyphDefn * pglf = new GdlGlyphDefn(glft, staPostscript);
	pglf->SetLineAndFile(lnf);
	AddMember(pglf, lnf);
	return pglf;
}

GdlGlyphClassMember * GdlGlyphClassDefn::AddGlyphToClass(GrpLineAndFile const& lnf,
	GlyphType glft, std::string staCodepoints, utf16 wCodePage)
{
	GdlGlyphDefn * pglf = new GdlGlyphDefn(glft, staCodepoints, wCodePage);
	pglf->SetLineAndFile(lnf);
	AddMember(pglf, lnf);
	return pglf;
}

GdlGlyphClassMember * GdlGlyphClassDefn::AddGlyphToClass(GrpLineAndFile const& lnf,
	GlyphType glft, GdlGlyphDefn * pglfOutput, utf16 wPseudoInput)
{
	GdlGlyphDefn * pglf = new GdlGlyphDefn(glft, pglfOutput, (int)wPseudoInput);
	pglf->SetLineAndFile(lnf);
	AddMember(pglf, lnf);
	return pglf;
}

GdlGlyphClassMember * GdlGlyphClassDefn::AddGlyphToClass(GrpLineAndFile const& lnf,
	GlyphType glft, GdlGlyphDefn * pglfOutput)
{
	GdlGlyphDefn * pglf = new GdlGlyphDefn(glft, pglfOutput);
	pglf->SetLineAndFile(lnf);
	AddMember(pglf, lnf);
	return pglf;
}

GdlGlyphClassMember * GdlGlyphClassDefn::AddClassToClass(GrpLineAndFile const& lnf,
	GdlGlyphClassDefn * pglfcMember)
{
	AddMember(pglfcMember, lnf);
	return pglfcMember;
}

/*----------------------------------------------------------------------------------------------
	Add an element to the class.
----------------------------------------------------------------------------------------------*/
void GdlGlyphClassDefn::AddElement(GdlGlyphClassMember * pglfdElement, GrpLineAndFile const& lnf,
   GlyphClassType glfct, GrcManager * pcman)
{
	GdlGlyphIntersectionClassDefn * pglfci = dynamic_cast<GdlGlyphIntersectionClassDefn *>(this);
	GdlGlyphDifferenceClassDefn * pglfcd = dynamic_cast<GdlGlyphDifferenceClassDefn *>(this);

	switch (glfct)
	{
	case kglfctUnion:
		AddMember(pglfdElement, lnf);
		break;
	case kglfctIntersect:
		Assert(pglfci);
		pglfci->AddSet(pglfdElement, lnf);
		break;
	case kglfctDifference:
		Assert(pglfcd);
		Assert(pglfcd->HasMinuend()); // because we only support -= right now
		if (pglfcd->HasMinuend())
		{
			if (!pglfcd->HasSubtrahend())
			{
				// Create an anonymous class to hold the subtrahends.
				Symbol psymClassAnon = pcman->SymbolTable()->AddAnonymousClassSymbol(lnf);
				std::string staClassNameAnon = psymClassAnon->FullName();
				GdlGlyphClassDefn * pglfcSubtra = psymClassAnon->GlyphClassDefnData();
				Assert(pglfcSubtra);
				pglfcSubtra->SetName(staClassNameAnon);
				pglfcd->SetSubtrahend(pglfcSubtra, lnf);
			}
			pglfcd->AddToSubtrahend(pglfdElement, lnf);
		}
		else
		{
			GdlGlyphClassDefn * pglfd = dynamic_cast<GdlGlyphClassDefn *>(pglfdElement);
			Assert(pglfd);	// because we only support class -= ... right now
			pglfcd->SetMinuend(pglfd, lnf);
		}
		break;
	default:
		Assert(false);
		break;
	}
}

/*----------------------------------------------------------------------------------------------
	Add a member to a "union" class (the standard kind).
----------------------------------------------------------------------------------------------*/
void GdlGlyphClassDefn::AddMember(GdlGlyphClassMember * pglfd, GrpLineAndFile const& lnf)
{
	Assert(m_vpglfdMembers.size() == m_vlnfMembers.size());
	m_vpglfdMembers.push_back(pglfd);
	m_vlnfMembers.push_back(lnf);
}


/*----------------------------------------------------------------------------------------------
	Add a set to an intersection class.
----------------------------------------------------------------------------------------------*/
void GdlGlyphIntersectionClassDefn::AddSet(GdlGlyphClassMember * pglfd, GrpLineAndFile const& lnf)
{
	Assert(m_vpglfdSets.size() == m_vlnfSets.size());
	m_vpglfdSets.push_back(pglfd);
	m_vlnfSets.push_back(lnf);
}

/*----------------------------------------------------------------------------------------------
	Add an element to a difference class.
----------------------------------------------------------------------------------------------*/
void GdlGlyphDifferenceClassDefn::SetMinuend(GdlGlyphClassDefn * pglfd,
	GrpLineAndFile const& lnf)
{
	m_pglfdMinuend = pglfd;
	m_lnfMinuend = lnf;
}

void GdlGlyphDifferenceClassDefn::SetSubtrahend(GdlGlyphClassDefn * pglfd,
	GrpLineAndFile const& lnf)
{
	m_pglfdSubtrahend = pglfd;
	m_lnfSubtrahend = lnf;
}

void GdlGlyphDifferenceClassDefn::AddToSubtrahend(GdlGlyphClassMember * pglfd,
	GrpLineAndFile const& lnf)
{
	Assert(m_pglfdSubtrahend);
	m_pglfdSubtrahend->AddMember(pglfd, lnf);
}

/*----------------------------------------------------------------------------------------------
	Add a user-defined glyph attribute to the list. Note that we shouldn't have to check
	for duplicates, due to the way the master glyph attribute list is managed (see
	GrcMasterTable::AddItem(...)).
----------------------------------------------------------------------------------------------*/
void GdlGlyphClassDefn::AddGlyphAttr(Symbol psym, GdlAssignment * pasgn)
{
	GdlGlyphAttrSetting * pglfa = new GdlGlyphAttrSetting(psym, pasgn);
	pglfa->SetLineAndFile(pasgn->LineAndFile());
	m_vpglfaAttrs.push_back(pglfa);	
}


/*----------------------------------------------------------------------------------------------
	Add an attribute of the form component.<compname>.<corner>.  Note that we shouldn't have
	to check for duplicates, due to the way the master glyph attribute list is managed
	(see GrcMasterTable::AddItem(...)).
----------------------------------------------------------------------------------------------*/
void GdlGlyphClassDefn::AddComponent(Symbol psym, GdlAssignment * pasgn)
{
	AddGlyphAttr(psym, pasgn);

//	Add this component to the list.
//	std::string staCompName = psym->FieldAt(2);
//	m_vstaComponentNames.Push(staCompName);

//	GdlGlyphAttrSetting * pglfa = new RldGlyphAttrSetting(psym, pasgn);
//	m_vglfaComponents.Push(pglfa);	
}


/*----------------------------------------------------------------------------------------------
	Return true if the given glyph is a member of the class.
----------------------------------------------------------------------------------------------*/
bool GdlGlyphClassDefn::IncludesGlyph(utf16 w)
{
	for (size_t iglfd = 0; iglfd < m_vpglfdMembers.size(); iglfd++)
	{
		if (m_vpglfdMembers[iglfd]->IncludesGlyph(w))
			return true;
	}
	return false;
}


/*----------------------------------------------------------------------------------------------
	Return true if the class include a bad glyph definition
----------------------------------------------------------------------------------------------*/
bool GdlGlyphClassDefn::HasBadGlyph()
{
	for (size_t iglfd = 0; iglfd < m_vpglfdMembers.size(); iglfd++)
	{
		if (m_vpglfdMembers[iglfd]->HasBadGlyph())
			return true;
	}
	return false;
}

/*----------------------------------------------------------------------------------------------
	Add this glyph's list of glyphs to the flat list.
	Assumes method is called after list of glyphs is complete.
----------------------------------------------------------------------------------------------*/
void GdlGlyphClassDefn::FlattenGlyphList(std::vector<utf16> & vgidFlattened)
{
	if (!m_fHasFlatList)
		FlattenMyGlyphList();
	for (size_t igid = 0; igid < m_vgidFlattened.size(); igid++)
	{
		vgidFlattened.push_back(m_vgidFlattened[igid]);
	}
}

/*----------------------------------------------------------------------------------------------
	Return true if there are duplicate glyphs in the class.
----------------------------------------------------------------------------------------------*/
bool GdlGlyphClassDefn::HasDuplicateGlyphs(utf16 * pgid) {
	std::vector<utf16> vgidFlattened;
	this->FlattenGlyphList(vgidFlattened);
	for (size_t i = 0; i < vgidFlattened.size() - 1; i++)
	{
		for (size_t j = i+1; j < vgidFlattened.size(); j++)
		{
			if (vgidFlattened[i] == vgidFlattened[j])
			{
				*pgid = vgidFlattened[i];
				return true;
			}
		}
	}
	//std::set<utf16> setgidNoDup;
	//for (size_t i = 0; i < vgidFlattened.size(); i++) {
	//	setgidNoDup.insert(vgidFlattened[i]);
	//}
	//return (setgidNoDup.size() < vgidFlattened.size());

	return false;
}



#if 0

/*----------------------------------------------------------------------------------------------
	Set the directionality attribute.
----------------------------------------------------------------------------------------------*/

void GdlGlyphClassDefn::SetDirection(GdlExpression * pglfaDir, int nStmtNo, bool fAttrOverride)
{
	if (m_pglfaDirection == NULL ||
		(fAttrOverride && nStmtNo > m_pglfaDirection->LineNumber()))
	{
		m_pexpDirection = pglfaDir;
	}
}


/*----------------------------------------------------------------------------------------------
	Set the breakweight attribute.
----------------------------------------------------------------------------------------------*/
void GdlGlyphClassDefn::SetBreakweight(GdlExpression * pexpBw, int nStmtNo, bool fAttrOverride)
{
	if (m_pexpBreakweight == NULL || (fAttrOverride && nStmtNo > m_nBwStmtNo))
		m_pexpBreakweight = pexpBw;
}

#endif // 0