/**
 * \file Inset.cpp
 * This file is part of LyX, the document processor.
 * Licence details can be found in the file COPYING.
 *
 * \author Alejandro Aguilar Sierra
 * \author Jürgen Vigna
 * \author Lars Gullik Bjønnes
 * \author Matthias Ettrich
 * \author André Pönitz
 *
 * Full author contact details are available in file CREDITS.
 */

#include <config.h>

#include "Inset.h"

#include "Buffer.h"
#include "BufferView.h"
#include "Color.h"
#include "CoordCache.h"
#include "Cursor.h"
#include "debug.h"
#include "debug.h"
#include "Dimension.h"
#include "DispatchResult.h"
#include "FuncRequest.h"
#include "FuncStatus.h"
#include "gettext.h"
#include "LyXText.h"
#include "MetricsInfo.h"
#include "MetricsInfo.h"

#include "frontends/Painter.h"

#include <boost/current_function.hpp>

#include <map>
#include <typeinfo>


namespace lyx {

class InsetName {
public:
	InsetName(std::string const & n, Inset::Code c)
		: name(n), code(c) {}
	std::string name;
	Inset::Code code;
};


typedef std::map<std::string, Inset::Code> TranslatorMap;


static TranslatorMap const build_translator()
{
	InsetName const insetnames[] = {
		InsetName("toc", Inset::TOC_CODE),
		InsetName("quote", Inset::QUOTE_CODE),
		InsetName("ref", Inset::REF_CODE),
		InsetName("url", Inset::URL_CODE),
		InsetName("htmlurl", Inset::HTMLURL_CODE),
		InsetName("separator", Inset::SEPARATOR_CODE),
		InsetName("ending", Inset::ENDING_CODE),
		InsetName("label", Inset::LABEL_CODE),
		InsetName("note", Inset::NOTE_CODE),
		InsetName("accent", Inset::ACCENT_CODE),
		InsetName("math", Inset::MATH_CODE),
		InsetName("index", Inset::INDEX_CODE),
		InsetName("nomenclature", Inset::NOMENCL_CODE),
		InsetName("include", Inset::INCLUDE_CODE),
		InsetName("graphics", Inset::GRAPHICS_CODE),
		InsetName("bibitem", Inset::BIBITEM_CODE),
		InsetName("bibtex", Inset::BIBTEX_CODE),
		InsetName("text", Inset::TEXT_CODE),
		InsetName("ert", Inset::ERT_CODE),
		InsetName("foot", Inset::FOOT_CODE),
		InsetName("margin", Inset::MARGIN_CODE),
		InsetName("float", Inset::FLOAT_CODE),
		InsetName("wrap", Inset::WRAP_CODE),
		InsetName("specialchar", Inset::SPECIALCHAR_CODE),
		InsetName("tabular", Inset::TABULAR_CODE),
		InsetName("external", Inset::EXTERNAL_CODE),
		InsetName("caption", Inset::CAPTION_CODE),
		InsetName("mathmacro", Inset::MATHMACRO_CODE),
		InsetName("cite", Inset::CITE_CODE),
		InsetName("float_list", Inset::FLOAT_LIST_CODE),
		InsetName("index_print", Inset::INDEX_PRINT_CODE),
		InsetName("nomencl_print", Inset::NOMENCL_PRINT_CODE),
		InsetName("optarg", Inset::OPTARG_CODE),
		InsetName("environment", Inset::ENVIRONMENT_CODE),
		InsetName("hfill", Inset::HFILL_CODE),
		InsetName("newline", Inset::NEWLINE_CODE),
		InsetName("line", Inset::LINE_CODE),
		InsetName("branch", Inset::BRANCH_CODE),
		InsetName("box", Inset::BOX_CODE),
		InsetName("charstyle", Inset::CHARSTYLE_CODE),
		InsetName("vspace", Inset::VSPACE_CODE),
		InsetName("mathmacroarg", Inset::MATHMACROARG_CODE),
	};

	std::size_t const insetnames_size =
		sizeof(insetnames) / sizeof(insetnames[0]);

	std::map<std::string, Inset::Code> data;
	for (std::size_t i = 0; i != insetnames_size; ++i) {
		InsetName const & var = insetnames[i];
		data[var.name] = var.code;
	}

	return data;
}


/// pretty arbitrary dimensions
Inset::Inset()
	: dim_(10, 10, 10), background_color_(Color::background)
{}


Inset::Inset(Inset const & inset)
	: dim_(inset.dim_), background_color_(inset.background_color_)
{}


std::auto_ptr<Inset> Inset::clone() const
{
	std::auto_ptr<Inset> b = doClone();
	BOOST_ASSERT(typeid(*b) == typeid(*this));
	return b;
}


docstring Inset::insetName() const 
{
	return from_ascii("unknown");
}


Inset::Code Inset::translate(std::string const & name)
{
	static TranslatorMap const translator = build_translator();

	TranslatorMap::const_iterator it = translator.find(name);
	return it == translator.end() ? NO_CODE : it->second;
}


void Inset::dispatch(Cursor & cur, FuncRequest & cmd)
{
	cur.updateFlags(Update::Force | Update::FitCursor);
	cur.dispatched();
	doDispatch(cur, cmd);
}


void Inset::doDispatch(Cursor & cur, FuncRequest &)
{
	cur.noUpdate();
	cur.undispatched();
}


bool Inset::getStatus(Cursor &, FuncRequest const & cmd,
	FuncStatus & flag) const
{
	// LFUN_INSET_APPLY is sent from the dialogs when the data should
	// be applied. This is either changed to LFUN_INSET_MODIFY (if the
	// dialog belongs to us) or LFUN_INSET_INSERT (if the dialog does
	// not belong to us, i. e. the dialog was open, and the user moved
	// the cursor in our inset) in LyXFunc::getStatus().
	// Dialogs::checkStatus() ensures that the dialog is deactivated if
	// LFUN_INSET_APPLY is disabled.

	switch (cmd.action) {
	case LFUN_INSET_MODIFY:
		// Allow modification of our data.
		// This needs to be handled in the doDispatch method of our
		// instantiatable children.
		flag.enabled(true);
		return true;

	case LFUN_INSET_INSERT:
		// Don't allow insertion of new insets.
		// Every inset that wants to allow new insets from open
		// dialogs needs to override this.
		flag.enabled(false);
		return true;

	default:
		return false;
	}
}


void Inset::edit(Cursor &, bool)
{
	LYXERR(Debug::INSETS) << BOOST_CURRENT_FUNCTION
			      << ": edit left/right" << std::endl;
}


Inset * Inset::editXY(Cursor &, int x, int y)
{
	LYXERR(Debug::INSETS) << BOOST_CURRENT_FUNCTION
			      << ": x=" << x << " y= " << y
			      << std::endl;
	return this;
}


Inset::idx_type Inset::index(row_type row, col_type col) const
{
	if (row != 0)
		lyxerr << BOOST_CURRENT_FUNCTION
		       << ": illegal row: " << row << std::endl;
	if (col != 0)
		lyxerr << BOOST_CURRENT_FUNCTION
		       << ": illegal col: " << col << std::endl;
	return 0;
}


bool Inset::idxBetween(idx_type idx, idx_type from, idx_type to) const
{
	return from <= idx && idx <= to;
}


bool Inset::idxUpDown(Cursor &, bool) const
{
	return false;
}


int Inset::docbook(Buffer const &,
	odocstream &, OutputParams const &) const
{
	return 0;
}


bool Inset::directWrite() const
{
	return false;
}


Inset::EDITABLE Inset::editable() const
{
	return NOT_EDITABLE;
}


bool Inset::autoDelete() const
{
	return false;
}


docstring const Inset::editMessage() const
{
	return _("Opened inset");
}


void Inset::cursorPos(BufferView const & /*bv*/, CursorSlice const &,
		bool, int & x, int & y) const
{
	lyxerr << "Inset::cursorPos called directly" << std::endl;
	x = 100;
	y = 100;
}


void Inset::metricsMarkers(Dimension & dim, int framesize) const
{
	dim.wid += 2 * framesize;
	dim.asc += framesize;
}


void Inset::metricsMarkers2(Dimension & dim, int framesize) const
{
	dim.wid += 2 * framesize;
	dim.asc += framesize;
	dim.des += framesize;
}


void Inset::drawMarkers(PainterInfo & pi, int x, int y) const
{
	Color::color pen_color = editing(pi.base.bv)?
		Color::mathframe : Color::background;

	int const t = x + width() - 1;
	int const d = y + descent();
	pi.pain.line(x, d - 3, x, d, pen_color);
	pi.pain.line(t, d - 3, t, d, pen_color);
	pi.pain.line(x, d, x + 3, d, pen_color);
	pi.pain.line(t - 3, d, t, d, pen_color);
	setPosCache(pi, x, y);
}


void Inset::drawMarkers2(PainterInfo & pi, int x, int y) const
{
	Color::color pen_color = editing(pi.base.bv)?
		Color::mathframe : Color::background;

	drawMarkers(pi, x, y);
	int const t = x + width() - 1;
	int const a = y - ascent();
	pi.pain.line(x, a + 3, x, a, pen_color);
	pi.pain.line(t, a + 3, t, a, pen_color);
	pi.pain.line(x, a, x + 3, a, pen_color);
	pi.pain.line(t - 3, a, t, a, pen_color);
	setPosCache(pi, x, y);
}


bool Inset::editing(BufferView * bv) const
{
	return bv->cursor().isInside(this);
}


int Inset::xo(BufferView const & bv) const
{
	return bv.coordCache().getInsets().x(this);
}


int Inset::yo(BufferView const & bv) const
{
	return bv.coordCache().getInsets().y(this);
}


bool Inset::covers(BufferView const & bv, int x, int y) const
{
	//lyxerr << "Inset::covers, x: " << x << " y: " << y
	//	<< " xo: " << xo(bv) << " yo: " << yo()
	//	<< " x1: " << xo(bv) << " x2: " << xo() + width()
	//	<< " y1: " << yo(bv) - ascent() << " y2: " << yo() + descent()
	//	<< std::endl;
	return bv.coordCache().getInsets().has(this)
			&& x >= xo(bv)
			&& x <= xo(bv) + width()
			&& y >= yo(bv) - ascent()
			&& y <= yo(bv) + descent();
}


void Inset::dump() const
{
	Buffer buf("foo", 1);
	write(buf, lyxerr);
}


void Inset::setBackgroundColor(Color_color color)
{
	background_color_ = color;
}


Color_color Inset::backgroundColor() const
{
	return Color::color(background_color_);
}


void Inset::setPosCache(PainterInfo const & pi, int x, int y) const
{
	//lyxerr << "Inset:: position cache to " << x << " " << y << std::endl;
	pi.base.bv->coordCache().insets().add(this, x, y);
}


/////////////////////////////////////////

bool isEditableInset(Inset const * inset)
{
	return inset && inset->editable();
}


bool isHighlyEditableInset(Inset const * inset)
{
	return inset && inset->editable() == Inset::HIGHLY_EDITABLE;
}


} // namespace lyx