kmplot/kmplot/plotstylewidget.cpp

0001 /*
0002     KmPlot - a math. function plotter for the KDE-Desktop
0003
0004     SPDX-FileCopyrightText: 2006 David Saxton <david@bluehaze.org>
0005
0006     This file is part of the KDE Project.
0007     KmPlot is part of the KDE-EDU Project.
0008
0009     SPDX-License-Identifier: GPL-2.0-or-later
0010 */
0011
0012 #include "plotstylewidget.h"
0013 #include "kgradientdialog.h"
0014 #include "ui_plotstylewidget.h"
0015
0016 #include <KColorButton>
0017
0018 #include <QDialog>
0019 #include <QDialogButtonBox>
0020 #include <QHBoxLayout>
0021 #include <QLabel>
0022
0023 class PlotStyleDialogWidget : public QWidget, public Ui::PlotStyleWidget
0024 {
0025 public:
0026     PlotStyleDialogWidget(QWidget *parent = 0)
0027         : QWidget(parent)
0028     {
0029         setupUi(this);
0030         lineStyle->addItem(i18n("Solid"), int(Qt::SolidLine));
0031         lineStyle->addItem(i18n("Dash"), int(Qt::DashLine));
0032         lineStyle->addItem(i18n("Dot"), int(Qt::DotLine));
0033         lineStyle->addItem(i18n("Dash Dot"), int(Qt::DashDotLine));
0034         lineStyle->addItem(i18n("Dash Dot Dot"), int(Qt::DashDotDotLine));
0035     }
0036 };
0037
0038 // BEGIN class PlotStyleWidget
0039 PlotStyleWidget::PlotStyleWidget(QWidget *parent)
0040     : QGroupBox(parent)
0041 {
0042     m_color = new KColorButton(this);
0043     QPushButton *advancedButton = new QPushButton(this);
0044     advancedButton->setText(i18n("Advanced..."));
0045     connect(advancedButton, &QPushButton::clicked, this, &PlotStyleWidget::advancedOptions);
0046
0047     QHBoxLayout *layout = new QHBoxLayout;
0048     layout->addWidget(new QLabel(i18n("Color:"), this));
0049     layout->addWidget(m_color);
0050     layout->addStretch(1);
0051     layout->addWidget(advancedButton);
0052     setLayout(layout);
0053
0054     m_dialog = new QDialog(this);
0055     QVBoxLayout *mainLayout = new QVBoxLayout;
0056     m_dialog->setLayout(mainLayout);
0057     m_dialog->setWindowTitle(i18nc("@title:window", "Plot Appearance"));
0058
0059     m_dialogWidget = new PlotStyleDialogWidget(m_dialog);
0060     m_dialogWidget->layout()->setContentsMargins(0, 0, 0, 0);
0061     mainLayout->addWidget(m_dialogWidget);
0062
0063     QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok);
0064     QPushButton *okButton = buttonBox->button(QDialogButtonBox::Ok);
0065     okButton->setDefault(true);
0066     okButton->setShortcut(Qt::CTRL | Qt::Key_Return);
0067     connect(buttonBox, &QDialogButtonBox::accepted, m_dialog, &QDialog::accept);
0068     connect(buttonBox, &QDialogButtonBox::rejected, m_dialog, &QDialog::reject);
0069     mainLayout->addWidget(buttonBox);
0070 }
0071
0072 void PlotStyleWidget::init(const PlotAppearance &plot, Function::Type type)
0073 {
0074     m_dialogWidget->gradientButton->setGradient(plot.gradient);
0075     m_dialogWidget->lineWidth->setValue(plot.lineWidth);
0076     m_color->setColor(plot.color);
0077     m_dialogWidget->useGradient->setChecked(plot.useGradient);
0078     setStyle(plot.style);
0079     m_dialogWidget->showExtrema->setChecked(plot.showExtrema);
0080     m_dialogWidget->showPlotName->setChecked(plot.showPlotName);
0081
0082     // Show/hide stuff as appropriate
0083     m_dialogWidget->showExtrema->setVisible(type == Function::Cartesian);
0084     m_dialogWidget->showTangentField->setVisible(type == Function::Differential);
0085
0086     layout()->invalidate();
0087     resize(layout()->minimumSize());
0088 }
0089
0090 PlotAppearance PlotStyleWidget::plot(bool visible)
0091 {
0092     PlotAppearance p;
0093     p.lineWidth = m_dialogWidget->lineWidth->value();
0094     p.color = m_color->color();
0095     p.useGradient = m_dialogWidget->useGradient->isChecked();
0096     p.showTangentField = m_dialogWidget->showTangentField->isChecked();
0097     p.gradient = m_dialogWidget->gradientButton->gradient();
0098     p.visible = visible;
0099     p.style = style();
0100     p.showExtrema = m_dialogWidget->showExtrema->isChecked();
0101     p.showPlotName = m_dialogWidget->showPlotName->isChecked();
0102     return p;
0103 }
0104
0105 Qt::PenStyle PlotStyleWidget::style() const
0106 {
0107     return (Qt::PenStyle)m_dialogWidget->lineStyle->itemData(m_dialogWidget->lineStyle->currentIndex()).toInt();
0108 }
0109
0110 void PlotStyleWidget::setStyle(Qt::PenStyle style)
0111 {
0112     m_dialogWidget->lineStyle->setCurrentIndex(m_dialogWidget->lineStyle->findData(int(style)));
0113 }
0114
0115 void PlotStyleWidget::advancedOptions()
0116 {
0117     m_dialog->show();
0118 }
0119 // END class PlotStyleWidget