main.cpp 范例文件

draggableaxes/main.cpp
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#include "data.h" #include <QtWidgets/QApplication> #include <QtWidgets/QWidget> #include <QtWidgets/QHBoxLayout> #include <QtWidgets/QVBoxLayout> #include <QtWidgets/QCommandLinkButton> #include <QtWidgets/QMessageBox> 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; } container->setMinimumSize(800, 600); 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); QCommandLinkButton *rangeButton = new QCommandLinkButton(widget); rangeButton->setText(QStringLiteral("Toggle axis ranges")); rangeButton->setDescription(QStringLiteral("Switch between automatic axis ranges and preset ranges")); rangeButton->setIconSize(QSize(0, 0)); vLayout->addWidget(rangeButton, 1, Qt::AlignTop); widget->setWindowTitle(QStringLiteral("Input Handling for Axes")); Data *graphData = new Data(graph); QObject::connect(rangeButton, &QCommandLinkButton::clicked, graphData, &Data::toggleRanges); widget->show(); return app.exec(); }