Warning, file /education/kmplot/kmplot/kprinterdlg.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

 /*
     KmPlot - a math. function plotter for the KDE-Desktop
 
     SPDX-FileCopyrightText: 1998, 1999, 2000, 2002 Klaus-Dieter Möller <kd.moeller@t-online.de>
 
     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 "kprinterdlg.h"
 
 // Qt includes
 #include <QCheckBox>
 #include <QComboBox>
 #include <QGridLayout>
 #include <QLabel>
 
 // KDE includes
 #include <KLocalizedString>
 
 // local includes
 #include "equationedit.h"
 #include "parser.h"
 
 KPrinterDlg::KPrinterDlg(QWidget *parent)
     : QWidget(parent)
 {
     setWindowTitle(i18nc("@title:window", "KmPlot Options"));
 
     QGridLayout *layout = new QGridLayout(this);
 
     m_printHeaderTable = new QCheckBox(i18n("Print header table"), this);
     m_transparentBackground = new QCheckBox(i18n("Transparent background"), this);
 
     m_widthEdit = new EquationEdit(this);
     m_heightEdit = new EquationEdit(this);
 
     m_widthEdit->setText(QStringLiteral("12"));
     m_heightEdit->setText(QStringLiteral("12"));
 
     m_lengthScalingCombo = new QComboBox(this);
     m_lengthScalingCombo->addItem(i18n("Pixels (1/72nd in)"));
     m_lengthScalingCombo->addItem(i18n("Inches (in)"));
     m_lengthScalingCombo->addItem(i18n("Centimeters (cm)"));
     m_lengthScalingCombo->addItem(i18n("Millimeters (mm)"));
 
     m_lengthScalingCombo->setCurrentIndex(2); // default of centimeters
 
     QLabel *widthLabel = new QLabel(i18n("Width:"), this);
     QLabel *heightLabel = new QLabel(i18n("Height:"), this);
 
     layout->addWidget(m_printHeaderTable, 0, 0, 1, 2);
     layout->addWidget(m_transparentBackground, 1, 0, 1, 2);
     layout->addWidget(widthLabel, 2, 0, 1, 1);
     layout->addWidget(m_widthEdit, 2, 1, 1, 1);
     layout->addWidget(heightLabel, 3, 0, 1, 1);
     layout->addWidget(m_heightEdit, 3, 1, 1, 1);
     layout->addWidget(m_lengthScalingCombo, 4, 1, 1, 1);
 
     layout->setRowStretch(5, 1);
 }
 
 bool KPrinterDlg::printHeaderTable()
 {
     return m_printHeaderTable->isChecked();
 }
 
 void KPrinterDlg::setPrintHeaderTable(bool status)
 {
     m_printHeaderTable->setChecked(status);
 }
 
 bool KPrinterDlg::printBackground()
 {
     return !m_transparentBackground->isChecked();
 }
 
 void KPrinterDlg::setPrintBackground(bool status)
 {
     m_transparentBackground->setChecked(!status);
 }
 
 double KPrinterDlg::printWidth()
 {
     return m_widthEdit->value() * lengthScaling();
 }
 
 void KPrinterDlg::setPrintWidth(double _width)
 {
     double width = _width / lengthScaling();
 
     if (width <= 0)
         width = 0.12 / lengthScaling();
 
     m_widthEdit->setText(Parser::number(width));
 }
 
 double KPrinterDlg::printHeight()
 {
     return m_heightEdit->value() * lengthScaling();
 }
 
 void KPrinterDlg::setPrintHeight(double _height)
 {
     double height = _height / lengthScaling();
 
     if (height <= 0)
         height = 0.12 / lengthScaling();
 
     m_heightEdit->setText(Parser::number(height));
 }
 
 bool KPrinterDlg::isValid(QString &msg)
 {
     bool ok;
 
     m_widthEdit->value(&ok);
     if (!ok) {
         msg = i18n("Width is invalid");
         return false;
     }
 
     m_heightEdit->value(&ok);
     if (!ok) {
         msg = i18n("Height is invalid");
         return false;
     }
 
     return true;
 }
 
 double KPrinterDlg::scalingToMeter(LengthScaling scaling)
 {
     switch (scaling) {
     case Centimeters:
         return 0.01;
     case Millimeters:
         return 0.001;
     case Inches:
         return 0.0254;
     case Pixels:
         return 0.0254 / 72.0;
     }
 
     return 1;
 }
 
 double KPrinterDlg::lengthScaling() const
 {
     LengthScaling scaling = (LengthScaling)m_lengthScalingCombo->currentIndex();
     return scalingToMeter(scaling);
 }