/* This file is part of
 * ======================================================
 * 
 *           LyX, The Document Processor
 * 	 
 *          Copyright 1998 The LyX Team.
 *
 *======================================================*/

#include <config.h>

#ifdef __GNUG__
#pragma implementation
#endif

#include "insetminipage.h"
#include "gettext.h"
#include "lyxfont.h"
#include "BufferView.h"
#include "LyXView.h"
#include "frontends/Dialogs.h"
#include "lyxtext.h"
#include "insets/insettext.h"
#include "support/LOstream.h"
#include "support/lstrings.h"
#include "debug.h"

using std::ostream;
using std::endl;


// Some information about Minipages in LaTeX:
// A minipage is a complete miniversion of a page and can contain
// its own footnotes, paragraphs, and array, tabular, and multicols
// environments. However it cannot contain floats or \marginpar's,
// but it can appear inside floats.
//
// The minipage environment is defined like this:
//
// \begin{minipage}[pos][height][inner-pos]{width} <text> \end{minipage}
//
// Where:
//     pos [opt] = is the vertical placement of the box with respect
//                 to the text baseline, [c], [t] and [b].
//     height [opt] = the height of the box
//     inner-pos [opt] = the position of the text within the box.
//                 It can be t, c, b or s, if unspecified the value
//                 of pos is used.
//     width = the width of the box
//
// In LyX we should try to support all these parameters, settable in a
// pop-up dialog.
// In this pop-up diallog it should also be possible to set all margin
// values that is usable in the minipage.
// With regard to different formats (like DocBook) I guess a minipage
// can be used there also. Perhaps not in the latex way, but we do not
// have to output "" for minipages.
// (Lgb)

InsetMinipage::InsetMinipage()
	: InsetCollapsable(), pos_(center),
	  inner_pos_(inner_center)
{
	setLabel(_("minipage"));
	LyXFont font(LyXFont::ALL_SANE);
	font.decSize();
	font.decSize();
	font.setColor(LColor::footnote);
	setLabelFont(font);
	setAutoCollapse(false);
	setInsetName("Minipage");
	widthp_ = 100; // set default to 100% of column_width
}


InsetMinipage::~InsetMinipage()
{
	hideDialog();
}


void InsetMinipage::Write(Buffer const * buf, ostream & os) const 
{
	os << getInsetName() << "\n"
	   << "position " << pos_ << "\n"
	   << "inner_position " << inner_pos_ << "\n"
	   << "height \"" << height_ << "\"\n"
	   << "width \"" << width_ << "\"\n"
	   << "widthp " << widthp_ << "\n";
	InsetCollapsable::Write(buf, os);
}


void InsetMinipage::Read(Buffer const * buf, LyXLex & lex)
{
    string token;

    if (lex.IsOK()) {
	lex.next();
	token = lex.GetString();
	if (token == "position") {
	    lex.next();
	    pos_ = static_cast<Position>(lex.GetInteger());
	    token = string();
	} else {
		lyxerr << "InsetMinipage::Read: Missing 'position'-tag!"
		       << endl;
	}
    }
    if (lex.IsOK()) {
	if (token.empty()) {
	    lex.next();
	    token = lex.GetString();
	}
	if (token == "inner_position") {
	    lex.next();
	    inner_pos_ = static_cast<InnerPosition>(lex.GetInteger());
	    token = string();
	} else {
		lyxerr << "InsetMinipage::Read: Missing 'inner_position'-tag!"
		       << endl;
	}
    }
    if (lex.IsOK()) {
	if (token.empty()) {
	    lex.next();
	    token = lex.GetString();
	}
	if (token == "height") {
	    lex.next();
	    height_ = lex.GetString();
	    token = string();
	} else {
		lyxerr << "InsetMinipage::Read: Missing 'height'-tag!"
		       << endl;
	}
    }
    if (lex.IsOK()) {
	if (token.empty()) {
	    lex.next();
	    token = lex.GetString();
	}
	if (token == "width") {
	    lex.next();
	    width_ = lex.GetString();
	    token = string();
	} else {
		lyxerr << "InsetMinipage::Read: Missing 'width'-tag!"
		       << endl;
	}
    }
    if (lex.IsOK()) {
	if (token.empty()) {
	    lex.next();
	    token = lex.GetString();
	}
	if (token == "widthp") {
	    lex.next();
	    widthp_ = lex.GetInteger();
	    token = string();
	} else {
		lyxerr << "InsetMinipage::Read: Missing 'widthp_'-tag!"
		       << endl;
	}
    }
    InsetCollapsable::Read(buf, lex);
}


Inset * InsetMinipage::Clone(Buffer const &) const
{
	InsetMinipage * result = new InsetMinipage;
	result->inset->init(inset);
	
	result->collapsed = collapsed;
	return result;
}


int InsetMinipage::ascent(BufferView * bv, LyXFont const & font) const
{
	lyxerr << "InsetMinipage::ascent" << endl;
	
	if (collapsed)
		return ascent_collapsed(bv->painter(), font);
	else {
		// Take placement into account.
		int i = 0;
		switch (pos_) {
		case top:
			i = InsetCollapsable::ascent(bv, font);
			break;
		case center:
			i = (InsetCollapsable::ascent(bv, font)
			     + InsetCollapsable::descent(bv, font)) / 2;
			break;
		case bottom:
			i = InsetCollapsable::descent(bv, font);
			break;
		}
		return i;
	}
}


int InsetMinipage::descent(BufferView * bv, LyXFont const & font) const
{
	if (collapsed)
		return descent_collapsed(bv->painter(), font);
	else {
		// Take placement into account.
		int i = 0;
		switch (pos_) {
		case top:
			i = InsetCollapsable::descent(bv, font);
			break;
		case center:
			i = (InsetCollapsable::ascent(bv, font)
			     + InsetCollapsable::descent(bv, font)) / 2;
			break;
		case bottom:
			i = InsetCollapsable::ascent(bv, font);
			break;
		}
		return i;
	}
}


string const InsetMinipage::EditMessage() const
{
	return _("Opened Minipage Inset");
}


int InsetMinipage::Latex(Buffer const * buf,
			 ostream & os, bool fragile, bool fp) const
{
	string s_pos;
	switch (pos_) {
	case top:
		s_pos += "t";
		break;
	case center:
		s_pos += "c";
		break;
	case bottom:
		s_pos += "b";
		break;
	}
	
	if (width_.empty()) {
	    os << "\\begin{minipage}[" << s_pos << "]{."
	       << widthp_ << "\\columnwidth}%\n";
	} else {
	    os << "\\begin{minipage}[" << s_pos << "]{"
	       << width_ << "}%\n";
	}
	
	int i = inset->Latex(buf, os, fragile, fp);
	os << "\\end{minipage}%\n";
	
	return i + 2;
}


bool InsetMinipage::InsertInsetAllowed(Inset * in) const
{
	if ((in->LyxCode() == Inset::FLOAT_CODE) ||
	    (in->LyxCode() == Inset::MARGIN_CODE)) {
		return false;
	}
	return true;
}


InsetMinipage::Position InsetMinipage::pos() const 
{
	return pos_;
}


void InsetMinipage::pos(InsetMinipage::Position p)
{
	pos_ = p;
}


InsetMinipage::InnerPosition InsetMinipage::innerPos() const
{
	return inner_pos_;
}


void InsetMinipage::innerPos(InsetMinipage::InnerPosition ip)
{
	inner_pos_ = ip;
}


string const & InsetMinipage::height() const
{
	return height_;
}


void InsetMinipage::height(string const & ll)
{
	height_ = ll;
}


string const & InsetMinipage::width() const
{
	return width_;
}


void InsetMinipage::width(string const & ll)
{
	width_ = ll;
}

int InsetMinipage::widthp() const
{
	return widthp_;
}


void InsetMinipage::widthp(int ll)
{
	widthp_ = ll;
}


void InsetMinipage::widthp(string const & ll)
{
	widthp_ = strToInt(ll);
}


void InsetMinipage::InsetButtonRelease(BufferView * bv, int x, int y,
				       int button)
{
    if (button == 3) {
#if 0
// we have to check first if we have a locking inset and if this locking inset
// has a popup menu with the 3rd button
	if (the_locking_inset) {
	    UpdatableInset * i;
	    if ((i=the_locking_inset->GetFirstLockingInsetOfType(TABULAR_CODE))) {
		i->InsetButtonRelease(bv, x, y, button);
		return;
	    }
	}
#endif
	bv->owner()->getDialogs()->showMinipage(this);
	return;
    }
    InsetCollapsable::InsetButtonRelease(bv, x, y, button);
}

int InsetMinipage::getMaxWidth(Painter & pain, UpdatableInset const * inset)
    const
{
    if (!width_.empty())
	return VSpace(width_).inPixels(0, 0);
    return InsetCollapsable::getMaxWidth(pain, inset) / 100 * widthp_;
}