kcalc

kcalc_const_menu.cpp

00001 /*
00002     kCalculator, a simple scientific calculator for KDE
00003 
00004     Copyright (C) 2003 Klaus Niederkrueger <kniederk@math.uni-koeln.de>
00005 
00006     This program is free software; you can redistribute it and/or modify
00007     it under the terms of the GNU General Public License as published by
00008     the Free Software Foundation; either version 2 of the License, or
00009     (at your option) any later version.
00010 
00011     This program is distributed in the hope that it will be useful,
00012     but WITHOUT ANY WARRANTY; without even the implied warranty of
00013     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014     GNU General Public License for more details.
00015 
00016     You should have received a copy of the GNU General Public License
00017     along with this program; if not, write to the Free Software
00018     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
00019 
00020 */
00021 
00022 #include <QDomDocument>
00023 #include <QFile>
00024 #include <klocale.h>
00025 #include <kstandarddirs.h>
00026 
00027 #include "kcalc_const_menu.h"
00028 
00029 QList<struct science_constant> KCalcConstMenu::Constants;
00030 
00031 
00032 void KCalcConstMenu::init_consts(void)
00033 {
00034   QDomDocument doc("list_of_constants");
00035   QFile file(KGlobal::dirs()->findResource("appdata", "scienceconstants.xml"));
00036 
00037   if (!file.open(QIODevice::ReadOnly)) {
00038     qDebug("Didn't find file \"scienceconstants.xml\"."
00039        "No constants will be available.");
00040     return;
00041   }
00042   if (!doc.setContent(&file)) {
00043     file.close();
00044     qDebug("The file \"scienceconstants.xml\" doesn't seem"
00045        "to be a valid description file."
00046        "No constants will be available.");
00047     return;
00048   }
00049   file.close();
00050 
00051   // print out the element names of all elements that are direct children
00052   // of the outermost element.
00053   QDomElement docElem = doc.documentElement();
00054 
00055   int i = 0;
00056   QDomNode n = docElem.firstChild();
00057   while(!n.isNull()) {
00058     QDomElement e = n.toElement(); // try to convert the node to an element.
00059     if(!e.isNull()  &&  e.tagName() == "constant") {
00060       struct science_constant tmp_const;
00061 
00062       tmp_const.name = I18N_NOOP(e.attributeNode("name").value());
00063       tmp_const.label = e.attributeNode("symbol").value();
00064       tmp_const.value = e.attributeNode("value").value();
00065 
00066       QString tmp_str_category = e.attributeNode("category").value();
00067       
00068       if (tmp_str_category == "mathematics")
00069     tmp_const.category = Mathematics;
00070       if (tmp_str_category == "electromagnetism")
00071     tmp_const.category = Electromagnetic;
00072       if (tmp_str_category == "nuclear")
00073     tmp_const.category = Nuclear;
00074       if (tmp_str_category == "thermodynamics")
00075     tmp_const.category = Thermodynamics;
00076       if (tmp_str_category == "gravitation")
00077     tmp_const.category = Gravitation;
00078 
00079       tmp_const.whatsthis = e.firstChildElement("description").text();
00080 
00081       Constants.append(tmp_const);
00082     }
00083     n = n.nextSibling();
00084     i++;
00085   }
00086 }
00087 
00088 void KCalcConstMenu::_init_all(void)
00089 {
00090   QMenu *math_menu = addMenu(i18n("Mathematics"));
00091   QMenu *em_menu = addMenu(i18n("Electromagnetism"));
00092   QMenu *nuclear_menu = addMenu(i18n("Atomic && Nuclear"));
00093   QMenu *thermo_menu = addMenu(i18n("Thermodynamics"));
00094   QMenu *gravitation_menu = addMenu(i18n("Gravitation"));
00095 
00096   connect(this, SIGNAL(triggered(QAction *)), SLOT(slotPassSignalThrough(QAction *)));
00097 
00098 
00099   for (int i = 0; i<Constants.size(); i++) {
00100     QAction *tmp_action = new QAction(i18n(Constants.at(i).name.toAscii().data()), this);
00101     tmp_action->setData(QVariant(i));
00102     if(Constants.at(i).category  &  Mathematics)
00103       math_menu->addAction(tmp_action);
00104     if(Constants.at(i).category  &  Electromagnetic)
00105       em_menu->addAction(tmp_action);
00106     if(Constants.at(i).category  &  Nuclear)
00107       nuclear_menu->addAction(tmp_action);
00108     if(Constants.at(i).category  &  Thermodynamics)
00109       thermo_menu->addAction(tmp_action);
00110     if(Constants.at(i).category  &  Gravitation)
00111       gravitation_menu->addAction(tmp_action);
00112   }
00113 }
00114 
00115 void KCalcConstMenu::slotPassSignalThrough(QAction  *chosen_const)
00116 {
00117   bool tmp_bool;
00118   int chosen_const_idx = (chosen_const->data()).toInt(& tmp_bool);
00119   emit triggeredConstant(Constants.at(chosen_const_idx));
00120 }
00121 
00122 KCalcConstMenu::KCalcConstMenu(QString const & title, QWidget * parent)
00123   : QMenu(title, parent)
00124 {
00125   _init_all();
00126 }
00127 
00128 KCalcConstMenu::KCalcConstMenu(QWidget * parent)
00129   : QMenu(parent)
00130 {
00131   _init_all();
00132 }
00133 
00134 
00135 #include "kcalc_const_menu.moc"
kcalc

kcalc_const_menu.cpp

kcalc

kdeutils
