kalzium/src/kalziumdataobject.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005, 2006, 2007 by Carsten Niehaus                     *
   3  *   cniehaus@kde.org                                                      *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.          *
  19  ***************************************************************************/
  20
  21 #include "kalziumdataobject.h"
  22
  23 #include <elementparser.h>
  24 #include <isotope.h>
  25 #include <isotopeparser.h>
  26 #include <spectrumparser.h>
  27
  28 #include <QFile>
  29 #include <QVariant>
  30 #include <QSvgRenderer>
  31 #include <QPainter>
  32
  33 #include <klocale.h>
  34 #include <kdebug.h>
  35 #include <kurl.h>
  36 #include <kstandarddirs.h>
  37 #include <kpixmapcache.h>
  38
  39 KalziumDataObject* KalziumDataObject::instance()
  40 {
  41         static KalziumDataObject kdo;
  42         return &kdo;
  43 }
  44
  45 KalziumDataObject::KalziumDataObject()
  46         : m_search( 0 )
  47 {
  48         // reading elements
  49         ElementSaxParser * parser = new ElementSaxParser();
  50
  51         QFile xmlFile( KStandardDirs::locate( "data", "libkdeedu/data/elements.xml" ) );
  52         QXmlInputSource source(&xmlFile);
  53         QXmlSimpleReader reader;
  54
  55         reader.setContentHandler(parser);
  56         reader.parse(source);
  57
  58         ElementList = parser->getElements();
  59
  60         //we don't need parser anymore, let's free its memory
  61         delete parser;
  62
  63         //read the spectra
  64         SpectrumParser * spectrumparser = new SpectrumParser();
  65
  66         QFile xmlSpFile( KStandardDirs::locate( "data", "libkdeedu/data/spectra.xml" ) );
  67         QXmlInputSource spsource(&xmlSpFile);
  68         QXmlSimpleReader sp_reader;
  69
  70         sp_reader.setContentHandler(spectrumparser);
  71         sp_reader.parse(spsource);
  72
  73         m_spectra = spectrumparser->getSpectrums();
  74
  75         //we don't need spectrumparser anymore, let's free its memory
  76         delete spectrumparser;
  77
  78         // reading isotopes
  79         IsotopeParser * isoparser = new IsotopeParser();
  80
  81         QFile xmlIsoFile( KStandardDirs::locate( "data", "libkdeedu/data/isotopes.xml" ) );
  82         QXmlInputSource isosource(&xmlIsoFile);
  83         QXmlSimpleReader isoreader;
  84
  85         isoreader.setContentHandler(isoparser);
  86         isoreader.parse(isosource);
  87
  88         QList<Isotope*> isotopes = isoparser->getIsotopes();
  89
  90         //we don't need isoparser anymore, let's free its memory
  91         delete isoparser;
  92
  93         foreach( Isotope *iso, isotopes )
  94         {
  95                 int num = iso->parentElementNumber();
  96                 if ( m_isotopes.contains( num ) )
  97                 {
  98                         m_isotopes[num].append( iso );
  99                 }
 100                 else
 101                 {
 102                         QList<Isotope*> newlist;
 103                         newlist.append( iso );
 104                         m_isotopes.insert( num, newlist );
 105                 }
 106         }
 107
 108         // cache it
 109         m_numOfElements = ElementList.count();
 110
 111         KPixmapCache cache("kalzium");
 112
 113         for ( int i = 0 ; i < m_numOfElements ; i++ )
 114         {
 115             //FIXME in case we ever get more than one theme we need
 116             //a settings-dialog where we can select the different iconsets...
 117             QString setname = "school";
 118
 119             QString pathname = KGlobal::dirs()->findResourceDir( "appdata", "data/iconsets/" ) + "data/iconsets/";
 120
 121             QString filename = pathname + setname + '/' + QString::number( i+1 ) + ".svg";
 122
 123             QPixmap pix = cache.loadFromSvg( filename, QSize( 40, 40 ) );
 124             if ( pix.isNull() ) {
 125                 pix = QPixmap( 40, 40 );
 126                 pix.fill(Qt::transparent);
 127
 128                 QPainter p( &pix );
 129                 Element *e =  ElementList.at(i);
 130                 QString esymbol = e->dataAsString( ChemicalDataObject::symbol );
 131                 p.drawText(0,0,40,40, Qt::AlignCenter | Qt::TextWordWrap, esymbol );
 132                 p.end();
 133             }
 134             PixmapList << pix;
 135         }
 136
 137 }
 138
 139 KalziumDataObject::~KalziumDataObject()
 140 {
 141     //Delete all elements
 142     qDeleteAll(ElementList);
 143
 144     //Delete all isotopes
 145     QHashIterator<int, QList<Isotope*> > i(m_isotopes);
 146     while (i.hasNext()) {
 147         i.next();
 148         qDeleteAll( i.value());
 149     }
 150 }
 151
 152 Element* KalziumDataObject::element( int number )
 153 {
 154         // checking that we are requesting a valid element
 155         if ( ( number <= 0 ) || ( number > m_numOfElements ) )
 156                 return 0;
 157         return ElementList[ number-1 ];
 158 }
 159
 160 QPixmap KalziumDataObject::pixmap( int number )
 161 {
 162         // checking that we are requesting a valid element
 163         if ( ( number <= 0 ) || ( number > m_numOfElements ) )
 164                 return 0;
 165         return PixmapList[ number-1 ];
 166 }
 167
 168 QList<Isotope*> KalziumDataObject::isotopes( Element * element )
 169 {
 170         return isotopes( element->dataAsVariant( ChemicalDataObject::atomicNumber ).toInt() );
 171 }
 172
 173 QList<Isotope*> KalziumDataObject::isotopes( int number )
 174 {
 175         return m_isotopes.contains( number ) ? m_isotopes.value( number ) : QList<Isotope*>();
 176 }
 177
 178 Spectrum * KalziumDataObject::spectrum( int number )
 179 {
 180     foreach (Spectrum * s, m_spectra ) {
 181         if (s->parentElementNumber() == number ) {
 182             return s;
 183         }
 184     }
 185
 186     return 0;
 187 }
 188
 189
 190 void KalziumDataObject::setSearch( Search *srch )
 191 {
 192         m_search = srch;
 193 }
 194
 195 Search* KalziumDataObject::search() const
 196 {
 197         return m_search;
 198 }