File indexing completed on 2024-04-21 03:41:42
0001 /* 0002 SPDX-FileCopyrightText: 2004, 2005, 2006 Thomas Nagy <tnagy2^8@yahoo.fr> 0003 SPDX-FileCopyrightText: 2006 Carsten Niehaus <cniehaus@kde.org> 0004 0005 SPDX-License-Identifier: GPL-2.0-or-later 0006 */ 0007 0008 #include "eqchemview.h" 0009 0010 #include <QClipboard> 0011 #include <QDebug> 0012 0013 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) 0014 #include <LineEditUrlDropEventFilter> 0015 #else 0016 #include <KLineEditUrlDropEventFilter> 0017 #endif 0018 0019 0020 #include <stdlib.h> 0021 0022 #include <config-kalzium.h> 0023 0024 #ifdef HAVE_FACILE 0025 extern "C" { 0026 char *solve_equation(const char *); 0027 } 0028 #else 0029 char *solve_equation(const char *) 0030 { 0031 return NULL; 0032 } 0033 #endif 0034 0035 void EQChemDialog::compute() 0036 { 0037 QString equation(ui.lineEdit->text()); 0038 equation.replace(QLatin1String("->"), QLatin1String(" -> ")); 0039 equation.append(' '); 0040 equation.prepend(' '); 0041 0042 char *result = solve_equation(equation.toLatin1().constData()); 0043 0044 QString answer = QString(result); 0045 0046 qDebug() << "Answer: " << answer; 0047 0048 ui.answer_label->setText(answer); 0049 0050 // mem leak ? 0051 free(result); 0052 } 0053 0054 EQChemDialog::EQChemDialog(QWidget *parent) 0055 : QWidget(parent) 0056 { 0057 ui.setupUi(this); 0058 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) 0059 LineEditUrlDropEventFilter *dropUrlEventFilter = new LineEditUrlDropEventFilter(parent); 0060 dropUrlEventFilter->installEventFilter(ui.lineEdit); 0061 #else 0062 KLineEditUrlDropEventFilter *dropUrlEventFilter = new KLineEditUrlDropEventFilter(parent); 0063 dropUrlEventFilter->installEventFilter(ui.lineEdit); 0064 #endif 0065 ui.lblHelp->setText(getHelpText()); 0066 0067 connect(ui.calculateButton, &QAbstractButton::clicked, this, &EQChemDialog::compute); 0068 connect(ui.btnCopy, &QAbstractButton::clicked, this, &EQChemDialog::copyAnswer); 0069 } 0070 0071 void EQChemDialog::copyAnswer() 0072 { 0073 qDebug() << "EQChemDialog::copyAnswer()"; 0074 QClipboard *clipboard = QApplication::clipboard(); 0075 clipboard->setText(ui.answer_label->text(), QClipboard::Clipboard); 0076 } 0077 0078 const QString EQChemDialog::getHelpText() 0079 { 0080 return i18nc("Help text for the chemical equation solver", 0081 "The equation solver allows you to balance a chemical equation.<br> " 0082 "<br>" 0083 "<b>Using Variables</b><br>" 0084 "To express variable quantities of an element, put a single character in front " 0085 "of the element's symbol, as shown in this example:<br>" 0086 "<i>aH + bO -> 5H2O</i> (Result: <b>10</b> H + <b>5</b> O -> <b>5</b> H<sub>2</sub>O)<br>" 0087 "Solving this expression will give you the needed amount of Hydrogen and Oxygen.<br>" 0088 "<br>" 0089 "<b>Defining electric charges</b><br>" 0090 "Use box brackets to specify the electric charge of an element, as shown in this example:<br>" 0091 "<i>4H[+] + 2O -> cH2O[2+]</i> (Result: <b>4</b> H<b><sup>+</sup></b> + <b>2</b> O -> <b>2</b> H<b><sub>2</sub></b>O<b><sup>2+</sub></b>)"); 0092 } 0093 0094 QSize EQChemDialog::sizeHint() const 0095 { 0096 QSize size; 0097 size.setWidth(200); 0098 return size; 0099 } 0100 0101 #include "moc_eqchemview.cpp"