File indexing completed on 2024-04-21 03:42:04

 /*
     KmPlot - a math. function plotter for the KDE-Desktop
 
     SPDX-FileCopyrightText: 2006 David Saxton <david@bluehaze.org>
 
     This file is part of the KDE Project.
     KmPlot is part of the KDE-EDU Project.
 
     SPDX-License-Identifier: GPL-2.0-or-later
 
 */
 
 #include "equationeditorwidget.h"
 
 #include <KAcceleratorManager>
 
 #include "equationeditwidget.h"
 #include "maindlg.h"
 #include "xparser.h"
 
 EquationEditorWidget::EquationEditorWidget(QWidget *parent)
     : QWidget(parent)
 {
     setupUi(this);
 
     QFont font;
     double pointSize = font.pointSizeF() * 1.1;
     font.setPointSizeF(pointSize);
     edit->m_equationEditWidget->document()->setDefaultFont(font);
     edit->m_equationEditWidget->recalculateGeometry();
 
     QFont buttonFont;
     buttonFont.setPointSizeF(font.pointSizeF() * 1.1);
 
     const QList<QToolButton *> buttons = findChildren<QToolButton *>();
     for (QToolButton *w : buttons) {
         KAcceleratorManager::setNoAccel(w);
 
         connect(w, &QToolButton::clicked, this, &EquationEditorWidget::characterButtonClicked);
 
         // Also increase the font size, since the fractions, etc are probably not that visible
         // at the default font size
         w->setFont(buttonFont);
     }
 
     connect(constantsButton, &QPushButton::clicked, this, &EquationEditorWidget::editConstants);
     connect(functionList, &QComboBox::textActivated, this, &EquationEditorWidget::insertFunction);
     connect(constantList, QOverload<int>::of(&QComboBox::activated), this, &EquationEditorWidget::insertConstant);
 
     QStringList functions = XParser::self()->predefinedFunctions(false);
     functions.sort();
     functionList->addItems(functions);
 
     connect(XParser::self()->constants(), &Constants::constantsChanged, this, &EquationEditorWidget::updateConstantList);
     updateConstantList();
 }
 
 void EquationEditorWidget::updateConstantList()
 {
     QStringList items;
 
     // The first item text is "Insert constant..."
     items << constantList->itemText(0);
 
     ConstantList constants = XParser::self()->constants()->list(Constant::All);
     for (ConstantList::iterator it = constants.begin(); it != constants.end(); ++it) {
         QString text = it.key() + " = " + it.value().value.expression();
         items << text;
     }
 
     constantList->clear();
     constantList->addItems(items);
 }
 
 void EquationEditorWidget::insertFunction(const QString &function)
 {
     if (functionList->currentIndex() == 0)
         return;
 
     functionList->setCurrentIndex(0);
     edit->wrapSelected(function + '(', ")");
     edit->setFocus();
 }
 
 void EquationEditorWidget::editConstants()
 {
     MainDlg::self()->editConstantsModal(this);
 }
 
 void EquationEditorWidget::insertConstant(int index)
 {
     if (index == 0)
         return;
 
     ConstantList constants = XParser::self()->constants()->list(Constant::All);
 
     if (constants.size() < index)
         return;
 
     // Don't forget that index==0 corresponds to "Insert constant..."
 
     ConstantList::iterator it = constants.begin();
     int at = 0;
     while (++at < index)
         ++it;
 
     QString constant = it.key();
 
     constantList->setCurrentIndex(0);
     edit->insertText(constant);
     edit->setFocus();
 }
 
 void EquationEditorWidget::characterButtonClicked()
 {
     const QToolButton *tb = static_cast<const QToolButton *>(sender());
 
     // Something (I can't work out what) is 'helpfully' inserting an ampersand (for keyboard acceleration).
     // Get rid of it.
     edit->insertText(tb->text().remove('&'));
 }
 
 #include "moc_equationeditorwidget.cpp"