main.cpp Example File

volumetric/main.cpp
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Data Visualization module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "volumetric.h"

#include <QtWidgets/QApplication>
#include <QtWidgets/QWidget>
#include <QtWidgets/QHBoxLayout>
#include <QtWidgets/QVBoxLayout>
#include <QtWidgets/QRadioButton>
#include <QtWidgets/QSlider>
#include <QtWidgets/QCheckBox>
#include <QtWidgets/QLabel>
#include <QtWidgets/QGroupBox>
#include <QtWidgets/QMessageBox>
#include <QtGui/QScreen>

int main(int argc, char **argv)
{
    QApplication app(argc, argv);
    Q3DScatter *graph = new Q3DScatter();
    QWidget *container = QWidget::createWindowContainer(graph);

    if (!graph->hasContext()) {
        QMessageBox msgBox;
        msgBox.setText("Couldn't initialize the OpenGL context.");
        msgBox.exec();
        return -1;
    }

    QSize screenSize = graph->screen()->size();
    container->setMinimumSize(QSize(screenSize.width() / 3, screenSize.height() / 3));
    container->setMaximumSize(screenSize);
    container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    container->setFocusPolicy(Qt::StrongFocus);

    QWidget *widget = new QWidget();
    QHBoxLayout *hLayout = new QHBoxLayout(widget);
    QVBoxLayout *vLayout = new QVBoxLayout();
    QVBoxLayout *vLayout2 = new QVBoxLayout();
    hLayout->addWidget(container, 1);
    hLayout->addLayout(vLayout);
    hLayout->addLayout(vLayout2);

    widget->setWindowTitle(QStringLiteral("Volumetric object example - 3D terrain"));

    QCheckBox *sliceXCheckBox = new QCheckBox(widget);
    sliceXCheckBox->setText(QStringLiteral("Slice volume on X axis"));
    sliceXCheckBox->setChecked(false);
    QCheckBox *sliceYCheckBox = new QCheckBox(widget);
    sliceYCheckBox->setText(QStringLiteral("Slice volume on Y axis"));
    sliceYCheckBox->setChecked(false);
    QCheckBox *sliceZCheckBox = new QCheckBox(widget);
    sliceZCheckBox->setText(QStringLiteral("Slice volume on Z axis"));
    sliceZCheckBox->setChecked(false);

    QSlider *sliceXSlider = new QSlider(Qt::Horizontal, widget);
    sliceXSlider->setMinimum(0);
    sliceXSlider->setMaximum(1024);
    sliceXSlider->setValue(512);
    sliceXSlider->setEnabled(true);
    QSlider *sliceYSlider = new QSlider(Qt::Horizontal, widget);
    sliceYSlider->setMinimum(0);
    sliceYSlider->setMaximum(1024);
    sliceYSlider->setValue(512);
    sliceYSlider->setEnabled(true);
    QSlider *sliceZSlider = new QSlider(Qt::Horizontal, widget);
    sliceZSlider->setMinimum(0);
    sliceZSlider->setMaximum(1024);
    sliceZSlider->setValue(512);
    sliceZSlider->setEnabled(true);

    QCheckBox *fpsCheckBox = new QCheckBox(widget);
    fpsCheckBox->setText(QStringLiteral("Show FPS"));
    fpsCheckBox->setChecked(false);
    QLabel *fpsLabel = new QLabel(QStringLiteral(""), widget);

    QGroupBox *textureDetailGroupBox = new QGroupBox(QStringLiteral("Texture detail"));

    QRadioButton *lowDetailRB = new QRadioButton(widget);
    lowDetailRB->setText(QStringLiteral("Low (128x64x128)"));
    lowDetailRB->setChecked(true);

    QRadioButton *mediumDetailRB = new QRadioButton(widget);
    mediumDetailRB->setText(QStringLiteral("Generating..."));
    mediumDetailRB->setChecked(false);
    mediumDetailRB->setEnabled(false);

    QRadioButton *highDetailRB = new QRadioButton(widget);
    highDetailRB->setText(QStringLiteral("Generating..."));
    highDetailRB->setChecked(false);
    highDetailRB->setEnabled(false);

    QVBoxLayout *textureDetailVBox = new QVBoxLayout;
    textureDetailVBox->addWidget(lowDetailRB);
    textureDetailVBox->addWidget(mediumDetailRB);
    textureDetailVBox->addWidget(highDetailRB);
    textureDetailGroupBox->setLayout(textureDetailVBox);

    QGroupBox *areaGroupBox = new QGroupBox(QStringLiteral("Show area"));

    QRadioButton *areaAllRB = new QRadioButton(widget);
    areaAllRB->setText(QStringLiteral("Whole region"));
    areaAllRB->setChecked(true);

    QRadioButton *areaMineRB = new QRadioButton(widget);
    areaMineRB->setText(QStringLiteral("The mine"));
    areaMineRB->setChecked(false);

    QRadioButton *areaMountainRB = new QRadioButton(widget);
    areaMountainRB->setText(QStringLiteral("The mountain"));
    areaMountainRB->setChecked(false);

    QVBoxLayout *areaVBox = new QVBoxLayout;
    areaVBox->addWidget(areaAllRB);
    areaVBox->addWidget(areaMineRB);
    areaVBox->addWidget(areaMountainRB);
    areaGroupBox->setLayout(areaVBox);

    QCheckBox *colorTableCheckBox = new QCheckBox(widget);
    colorTableCheckBox->setText(QStringLiteral("Alternate color table"));
    colorTableCheckBox->setChecked(false);

    QLabel *sliceImageXLabel = new QLabel(widget);
    QLabel *sliceImageYLabel = new QLabel(widget);
    QLabel *sliceImageZLabel = new QLabel(widget);
    sliceImageXLabel->setMinimumSize(QSize(200, 100));
    sliceImageYLabel->setMinimumSize(QSize(200, 200));
    sliceImageZLabel->setMinimumSize(QSize(200, 100));
    sliceImageXLabel->setMaximumSize(QSize(200, 100));
    sliceImageYLabel->setMaximumSize(QSize(200, 200));
    sliceImageZLabel->setMaximumSize(QSize(200, 100));
    sliceImageXLabel->setFrameShape(QFrame::Box);
    sliceImageYLabel->setFrameShape(QFrame::Box);
    sliceImageZLabel->setFrameShape(QFrame::Box);
    sliceImageXLabel->setScaledContents(true);
    sliceImageYLabel->setScaledContents(true);
    sliceImageZLabel->setScaledContents(true);

    QSlider *alphaMultiplierSlider = new QSlider(Qt::Horizontal, widget);
    alphaMultiplierSlider->setMinimum(0);
    alphaMultiplierSlider->setMaximum(139);
    alphaMultiplierSlider->setValue(100);
    alphaMultiplierSlider->setEnabled(true);
    QLabel *alphaMultiplierLabel = new QLabel(QStringLiteral("Alpha multiplier: 1.0"));

    QCheckBox *preserveOpacityCheckBox = new QCheckBox(widget);
    preserveOpacityCheckBox->setText(QStringLiteral("Preserve opacity"));
    preserveOpacityCheckBox->setChecked(true);

    QCheckBox *transparentGroundCheckBox = new QCheckBox(widget);
    transparentGroundCheckBox->setText(QStringLiteral("Transparent ground"));
    transparentGroundCheckBox->setChecked(false);

    QCheckBox *useHighDefShaderCheckBox = new QCheckBox(widget);
    useHighDefShaderCheckBox->setText(QStringLiteral("Use HD shader"));
    useHighDefShaderCheckBox->setChecked(true);

    QLabel *performanceNoteLabel =
            new QLabel(QStringLiteral(
                           "Note: A high end graphics card is\nrecommended with the HD shader\nwhen the volume contains a lot of\ntransparent areas."));
    performanceNoteLabel->setFrameShape(QFrame::Box);

    QCheckBox *drawSliceFramesCheckBox = new QCheckBox(widget);
    drawSliceFramesCheckBox->setText(QStringLiteral("Draw slice frames"));
    drawSliceFramesCheckBox->setChecked(false);

    vLayout->addWidget(sliceXCheckBox);
    vLayout->addWidget(sliceXSlider);
    vLayout->addWidget(sliceImageXLabel);
    vLayout->addWidget(sliceYCheckBox);
    vLayout->addWidget(sliceYSlider);
    vLayout->addWidget(sliceImageYLabel);
    vLayout->addWidget(sliceZCheckBox);
    vLayout->addWidget(sliceZSlider);
    vLayout->addWidget(sliceImageZLabel);
    vLayout->addWidget(drawSliceFramesCheckBox, 1, Qt::AlignTop);
    vLayout2->addWidget(fpsCheckBox);
    vLayout2->addWidget(fpsLabel);
    vLayout2->addWidget(textureDetailGroupBox);
    vLayout2->addWidget(areaGroupBox);
    vLayout2->addWidget(colorTableCheckBox);
    vLayout2->addWidget(alphaMultiplierLabel);
    vLayout2->addWidget(alphaMultiplierSlider);
    vLayout2->addWidget(preserveOpacityCheckBox);
    vLayout2->addWidget(transparentGroundCheckBox);
    vLayout2->addWidget(useHighDefShaderCheckBox);
    vLayout2->addWidget(performanceNoteLabel, 1, Qt::AlignTop);

    VolumetricModifier *modifier = new VolumetricModifier(graph);
    modifier->setFpsLabel(fpsLabel);
    modifier->setMediumDetailRB(mediumDetailRB);
    modifier->setHighDetailRB(highDetailRB);
    modifier->setSliceSliders(sliceXSlider, sliceYSlider, sliceZSlider);
    modifier->setSliceLabels(sliceImageXLabel, sliceImageYLabel, sliceImageZLabel);
    modifier->setAlphaMultiplierLabel(alphaMultiplierLabel);
    modifier->setTransparentGround(transparentGroundCheckBox->isChecked());

    QObject::connect(fpsCheckBox, &QCheckBox::stateChanged, modifier,
                     &VolumetricModifier::setFpsMeasurement);
    QObject::connect(sliceXCheckBox, &QCheckBox::stateChanged, modifier,
                     &VolumetricModifier::sliceX);
    QObject::connect(sliceYCheckBox, &QCheckBox::stateChanged, modifier,
                     &VolumetricModifier::sliceY);
    QObject::connect(sliceZCheckBox, &QCheckBox::stateChanged, modifier,
                     &VolumetricModifier::sliceZ);
    QObject::connect(sliceXSlider, &QSlider::valueChanged, modifier,
                     &VolumetricModifier::adjustSliceX);
    QObject::connect(sliceYSlider, &QSlider::valueChanged, modifier,
                     &VolumetricModifier::adjustSliceY);
    QObject::connect(sliceZSlider, &QSlider::valueChanged, modifier,
                     &VolumetricModifier::adjustSliceZ);
    QObject::connect(lowDetailRB, &QRadioButton::toggled, modifier,
                     &VolumetricModifier::toggleLowDetail);
    QObject::connect(mediumDetailRB, &QRadioButton::toggled, modifier,
                     &VolumetricModifier::toggleMediumDetail);
    QObject::connect(highDetailRB, &QRadioButton::toggled, modifier,
                     &VolumetricModifier::toggleHighDetail);
    QObject::connect(colorTableCheckBox, &QCheckBox::stateChanged, modifier,
                     &VolumetricModifier::changeColorTable);
    QObject::connect(preserveOpacityCheckBox, &QCheckBox::stateChanged, modifier,
                     &VolumetricModifier::setPreserveOpacity);
    QObject::connect(transparentGroundCheckBox, &QCheckBox::stateChanged, modifier,
                     &VolumetricModifier::setTransparentGround);
    QObject::connect(useHighDefShaderCheckBox, &QCheckBox::stateChanged, modifier,
                     &VolumetricModifier::setUseHighDefShader);
    QObject::connect(alphaMultiplierSlider, &QSlider::valueChanged, modifier,
                     &VolumetricModifier::adjustAlphaMultiplier);
    QObject::connect(areaAllRB, &QRadioButton::toggled, modifier,
                     &VolumetricModifier::toggleAreaAll);
    QObject::connect(areaMineRB, &QRadioButton::toggled, modifier,
                     &VolumetricModifier::toggleAreaMine);
    QObject::connect(areaMountainRB, &QRadioButton::toggled, modifier,
                     &VolumetricModifier::toggleAreaMountain);
    QObject::connect(drawSliceFramesCheckBox, &QCheckBox::stateChanged, modifier,
                     &VolumetricModifier::setDrawSliceFrames);

    widget->show();
    return app.exec();
}

© 2017 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.