kword/latex/export/formula.cpp

/*
** A program to convert the XML rendered by KWord into LATEX.
**
** Copyright (C) 2000 Robert JACOLIN
**
** 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.
**
** To receive a copy of the GNU Library General Public License, write to the
** Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
**
*/
 
#include <stdlib.h>     /* for atoi function */
#include <kdebug.h>     /* for kdDebug() stream */
#include <tqptrstack.h>     /* for getFormula() */
#include <tqdom.h>
#include "formula.h"
#include <tdeapplication.h>
 
#include <kformuladocument.h>
#include <kformulamimesource.h>
 
/*******************************************/
/* Constructor                             */
/*******************************************/
Formula::Formula()
{
    _left              = 0;
    _right             = 0;
    _top               = 0;
    _bottom            = 0;
    _runaround         = TA_NONE;
    _runaroundGap      = 0;
    _autoCreate        = TC_EXTEND;
    _newFrameBehaviour = TF_RECONNECT;
 
}
 
/*******************************************/
/* analyse                                 */
/*******************************************/
void Formula::analyse(const TQDomNode balise)
{
 
    /* MARKUP TYPE : FRAMESET INFO = TEXTE, ENTETE CONNUE */
 
    /* Parameters Analyse */
    Element::analyse(balise);
 
    kdDebug(30522) << "FRAME ANALYSE (Formula)" << endl;
 
    /* Chlidren markups Analyse */
    for(int index= 0; index < getNbChild(balise); index++)
    {
        if(getChildName(balise, index).compare("FRAME")== 0)
        {
            analyseParamFrame(balise);
        }
        else if(getChildName(balise, index).compare("FORMULA")== 0)
        {
            getFormula(getChild(getChild(balise, "FORMULA"), "FORMULA"), 0);
            kdDebug(30522) << _formula << endl;
        }
 
    }
    kdDebug(30522) << "END OF A FRAME" << endl;
}
 
/*******************************************/
/* getFormula                              */
/*******************************************/
/* Get back the xml markup tree.           */
/*******************************************/
void Formula::getFormula(TQDomNode p, int indent)
{
    switch( p.nodeType() )
    {
        case TQDomNode::TextNode:
            _formula = _formula + TQString(p.toText().data()) + " ";
            break;
    /*  case TT_Space:
            _formula = _formula + p->zText;
            //printf("%*s\"%s\"\n", indent, "", p->zText);
            break;
        case TT_EOL:
            _formula = _formula + "\n";
            //printf("%*s\n", indent, "");
            break;*/
        case TQDomNode::ElementNode:
            _formula = _formula + "<" + p.nodeName();
            TQDomNamedNodeMap attr = p.attributes();
            for(unsigned int index = 0; index < attr.length(); index++)
            { // The attributes
                _formula = _formula + " " + attr.item(index).nodeName();
                _formula = _formula + "=\"" + attr.item(index).nodeValue() + "\"";
            }
            if(p.childNodes().length() == 0)
                _formula = _formula + "/>\n";
            else
            {
                _formula = _formula + ">\n";
                TQDomNodeList child = p.childNodes();
                for(unsigned int index = 0; index < child.length(); index++)
                {
                    getFormula(child.item(index), indent + 3); // The child elements
                }
                _formula = _formula + "</" + p.nodeName() + ">\n";
            }
            break;
        /*case TQDomNode::AttributeNode:
        case TQDomNode::CDATASectionNode:
        case TQDomNode::EntityReferenceNode:
        case TQDomNode::EntityNode:
        case TQDomNode::ProcessingInstructionNode:
        case TQDomNode::CommentNode:
        case TQDomNode::DocumentNode:
        case TQDomNode::DocumentTypeNode:
        case TQDomNode::DocumentFragmentNode:
        case TQDomNode::NotationNode:
        case TQDomNode::BaseNode:
        case TQDomNode::CharacterDataNode:
            break;*/
                        //default:
                        //kdError(30522) << "Can't happen" << endl;
                        //break;
 
    }
}
 
/*******************************************/
/* analyseParamFrame                       */
/*******************************************/
void Formula::analyseParamFrame(const TQDomNode balise)
{
    /*<FRAME left="28" top="42" right="566" bottom="798" runaround="1" />*/
 
    _left = getAttr(balise, "left").toInt();
    _top = getAttr(balise, "top").toInt();
    _right = getAttr(balise, "right").toInt();
    _bottom = getAttr(balise, "bottom").toInt();
    setRunAround(getAttr(balise, "runaround").toInt());
    setAroundGap(getAttr(balise, "runaroundGap").toInt());
    setAutoCreate(getAttr(balise, "autoCreateNewFrame").toInt());
    setNewFrame(getAttr(balise, "newFrameBehaviour").toInt());
    setSheetSide(getAttr(balise, "sheetside").toInt());
}
 
/*******************************************/
/* generate                                */
/*******************************************/
void Formula::generate(TQTextStream &out)
{
    kdDebug(30522) << "FORMULA GENERATION" << endl;
    TQDomDocument doc;
    doc.setContent(_formula);
 
    // a new KFormula::Document for every formula is not the best idea.
    // better to have only one such beast for the whole document.
        KFormula::DocumentWrapper* wrapper = new KFormula::DocumentWrapper( kapp->config(), 0 );
        KFormula::Document* formulaDoc = new KFormula::Document;
        wrapper->document( formulaDoc );
 
    KFormula::Container* formula = formulaDoc->createFormula();
    if ( !formula->load( doc.documentElement () ) ) {
        kdError(30522) << "Failed." << endl;
    }
 
    out << "$" << formula->texString() << "$";
        delete formula;
 
        delete wrapper;
}