main.cpp 范例文件

rotations/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 "scatterdatamodifier.h" #include <QtWidgets/QApplication> #include <QtWidgets/QWidget> #include <QtWidgets/QHBoxLayout> #include <QtWidgets/QVBoxLayout> #include <QtWidgets/QPushButton> #include <QtWidgets/QSlider> #include <QtWidgets/QLabel> #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() / 2, screenSize.height() / 1.5)); 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(); hLayout->addWidget(container, 1); hLayout->addLayout(vLayout); widget->setWindowTitle(QStringLiteral("Item rotations example - Magnetic field of the sun")); QPushButton *toggleRotationButton = new QPushButton(widget); toggleRotationButton->setText(QStringLiteral("Toggle animation")); QPushButton *toggleSunButton = new QPushButton(widget); toggleSunButton->setText(QStringLiteral("Toggle Sun")); QSlider *fieldLinesSlider = new QSlider(Qt::Horizontal, widget); fieldLinesSlider->setTickInterval(1); fieldLinesSlider->setMinimum(1); fieldLinesSlider->setValue(12); fieldLinesSlider->setMaximum(128); QSlider *arrowsSlider = new QSlider(Qt::Horizontal, widget); arrowsSlider->setTickInterval(1); arrowsSlider->setMinimum(8); arrowsSlider->setValue(16); arrowsSlider->setMaximum(32); vLayout->addWidget(toggleRotationButton); vLayout->addWidget(toggleSunButton); vLayout->addWidget(new QLabel(QStringLiteral("Field Lines (1 - 128):"))); vLayout->addWidget(fieldLinesSlider); vLayout->addWidget(new QLabel(QStringLiteral("Arrows per line (8 - 32):"))); vLayout->addWidget(arrowsSlider, 1, Qt::AlignTop); ScatterDataModifier *modifier = new ScatterDataModifier(graph); QObject::connect(toggleRotationButton, &QPushButton::clicked, modifier, &ScatterDataModifier::toggleRotation); QObject::connect(toggleSunButton, &QPushButton::clicked, modifier, &ScatterDataModifier::toggleSun); QObject::connect(fieldLinesSlider, &QSlider::valueChanged, modifier, &ScatterDataModifier::setFieldLines); QObject::connect(arrowsSlider, &QSlider::valueChanged, modifier, &ScatterDataModifier::setArrowsPerLine); widget->show(); return app.exec(); }