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++ // Copyright (C) 2023 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include "data.h"
++
++ #include <QApplication>
++ #include <QWidget>
++ #include <QHBoxLayout>
++ #include <QVBoxLayout>
++ #include <QPushButton>
++ #include <QLabel>
++ #include <QComboBox>
++ #include <QSlider>
++ #include <QTextEdit>
++ #include <QScreen>
++ #include <QPainter>
++
++ int main(int argc, char **argv)
++ {
++ QApplication app(argc, argv);
++
++ QWidget *widget = new QWidget();
++ QHBoxLayout *hLayout = new QHBoxLayout(widget);
++ QVBoxLayout *vLayout = new QVBoxLayout();
++
++ auto surfaceQuickWidget = new QQuickWidget;
++ auto scatterQuickWidget = new QQuickWidget;
++ auto barsQuickWidget = new QQuickWidget;
++ Q3DSurfaceWidgetItem *surface = new Q3DSurfaceWidgetItem();
++ Q3DScatterWidgetItem *scatter = new Q3DScatterWidgetItem();
++ Q3DBarsWidgetItem *bars = new Q3DBarsWidgetItem();
++ surface->setWidget(surfaceQuickWidget);
++ scatter->setWidget(scatterQuickWidget);
++ bars->setWidget(barsQuickWidget);
++ QSize screenSize = surface->widget()->screen()->size();
++
++ surface->widget()->setMinimumSize(QSize(screenSize.height() / 1.2, screenSize.height() / 1.2));
++ surface->widget()->setMaximumSize(screenSize);
++ surface->widget()->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
++ surface->widget()->setFocusPolicy(Qt::StrongFocus);
++
++ scatter->widget()->setMinimumSize(QSize(screenSize.height() / 1.2, screenSize.height() / 1.2));
++ scatter->widget()->setMaximumSize(screenSize);
++ scatter->widget()->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
++ scatter->widget()->setFocusPolicy(Qt::StrongFocus);
++ scatter->widget()->setVisible(false);
++
++ bars->widget()->setMinimumSize(QSize(screenSize.height() / 1.2, screenSize.height() / 1.2));
++ bars->widget()->setMaximumSize(screenSize);
++ bars->widget()->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
++ bars->widget()->setFocusPolicy(Qt::StrongFocus);
++ bars->widget()->setVisible(false);
++
++ widget->setWindowTitle(QStringLiteral("Test switching graphs on the fly"));
++
++ hLayout->addWidget(surface->widget(), 1);
++ hLayout->addWidget(scatter->widget(), 1);
++ hLayout->addWidget(bars->widget(), 1);
++ hLayout->addLayout(vLayout);
++
++ QPushButton *startButton = new QPushButton(widget);
++ startButton->setText(QStringLiteral("Start"));
++
++ QPushButton *stopButton = new QPushButton(widget);
++ stopButton->setText(QStringLiteral("Stop"));
++
++ QComboBox *resolutionBox = new QComboBox(widget);
++ resolutionBox->addItem(QStringLiteral("Low"));
++ resolutionBox->addItem(QStringLiteral("Medium"));
++ resolutionBox->addItem(QStringLiteral("High"));
++ resolutionBox->addItem(QStringLiteral("Max")); // Comment this out if demo machine is low-perf
++ resolutionBox->setCurrentIndex(0);
++
++ QComboBox *modeBox = new QComboBox(widget);
++ modeBox->addItem(QStringLiteral("Surface Plot"));
++ modeBox->addItem(QStringLiteral("Scatter Graph"));
++ modeBox->addItem(QStringLiteral("Bar Graph"));
++ modeBox->setCurrentIndex(0);
++
++ QLinearGradient gradientOne(0, 0, 200, 1);
++ gradientOne.setColorAt(0.0, Qt::black);
++ gradientOne.setColorAt(0.33, Qt::blue);
++ gradientOne.setColorAt(0.67, Qt::red);
++ gradientOne.setColorAt(1.0, Qt::yellow);
++
++ QPixmap pm(200, 24);
++ QPainter pmp(&pm);
++ pmp.setBrush(QBrush(gradientOne));
++ pmp.setPen(Qt::NoPen);
++ pmp.drawRect(0, 0, 200, 24);
++
++ QPushButton *gradientOneButton = new QPushButton(widget);
++ gradientOneButton->setIcon(QIcon(pm));
++ gradientOneButton->setIconSize(QSize(200, 24));
++ gradientOneButton->setToolTip(QStringLiteral("Colors: Thermal Imitation"));
++
++ QLinearGradient gradientTwo(0, 0, 200, 1);
++ gradientTwo.setColorAt(0.0, Qt::white);
++ gradientTwo.setColorAt(0.8, Qt::red);
++ gradientTwo.setColorAt(1.0, Qt::green);
++
++ pmp.setBrush(QBrush(gradientTwo));
++ pmp.setPen(Qt::NoPen);
++ pmp.drawRect(0, 0, 200, 24);
++
++ QPushButton *gradientTwoButton = new QPushButton(widget);
++ gradientTwoButton->setIcon(QIcon(pm));
++ gradientTwoButton->setIconSize(QSize(200, 24));
++ gradientTwoButton->setToolTip(QStringLiteral("Colors: Highlight Foreground"));
++
++ QTextEdit *status = new QTextEdit(QStringLiteral("<b>Ready</b><br>"), widget);
++ status->setReadOnly(true);
++
++ vLayout->addWidget(startButton);
++ vLayout->addWidget(stopButton);
++ vLayout->addWidget(new QLabel(QStringLiteral("Change resolution")));
++ vLayout->addWidget(resolutionBox);
++ vLayout->addWidget(new QLabel(QStringLiteral("Change graphs type")));
++ vLayout->addWidget(modeBox);
++ vLayout->addWidget(new QLabel(QStringLiteral("Change color scheme")));
++ vLayout->addWidget(gradientOneButton);
++ vLayout->addWidget(gradientTwoButton);
++ vLayout->addWidget(status, 1, Qt::AlignBottom);
++
++ widget->show();
++
++ Data datagen(surface, scatter, bars, status, widget);
++ ContainerChanger changer(surface->widget(),
++ scatter->widget(),
++ bars->widget(),
++ gradientOneButton,
++ gradientTwoButton);
++
++ QObject::connect(startButton, &QPushButton::clicked, &datagen, &Data::start);
++ QObject::connect(stopButton, &QPushButton::clicked, &datagen, &Data::stop);
++ QObject::connect(resolutionBox, SIGNAL(activated(int)), &datagen, SLOT(setResolution(int)));
++ QObject::connect(modeBox, SIGNAL(activated(int)), &changer, SLOT(changeContainer(int)));
++ QObject::connect(modeBox, SIGNAL(activated(int)), &datagen, SLOT(changeMode(int)));
++ QObject::connect(status, &QTextEdit::textChanged, &datagen, &Data::scrollDown);
++ QObject::connect(gradientOneButton, &QPushButton::clicked, &datagen,
++ &Data::useGradientOne);
++ QObject::connect(gradientTwoButton, &QPushButton::clicked, &datagen,
++ &Data::useGradientTwo);
++
++ int retVal = app.exec();
++
++ return retVal;
++ }