window.cpp 范例文件

widgets/sliders/window.cpp
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#include <QtWidgets> #include "slidersgroup.h" #include "window.h" Window::Window() { horizontalSliders = new SlidersGroup(Qt::Horizontal, tr("Horizontal")); verticalSliders = new SlidersGroup(Qt::Vertical, tr("Vertical")); stackedWidget = new QStackedWidget; stackedWidget->addWidget(horizontalSliders); stackedWidget->addWidget(verticalSliders); createControls(tr("Controls")); connect(horizontalSliders, SIGNAL(valueChanged(int)), verticalSliders, SLOT(setValue(int))); connect(verticalSliders, SIGNAL(valueChanged(int)), valueSpinBox, SLOT(setValue(int))); connect(valueSpinBox, SIGNAL(valueChanged(int)), horizontalSliders, SLOT(setValue(int))); QHBoxLayout *layout = new QHBoxLayout; layout->addWidget(controlsGroup); layout->addWidget(stackedWidget); setLayout(layout); minimumSpinBox->setValue(0); maximumSpinBox->setValue(20); valueSpinBox->setValue(5); setWindowTitle(tr("Sliders")); } void Window::createControls(const QString &title) { controlsGroup = new QGroupBox(title); minimumLabel = new QLabel(tr("Minimum value:")); maximumLabel = new QLabel(tr("Maximum value:")); valueLabel = new QLabel(tr("Current value:")); invertedAppearance = new QCheckBox(tr("Inverted appearance")); invertedKeyBindings = new QCheckBox(tr("Inverted key bindings")); minimumSpinBox = new QSpinBox; minimumSpinBox->setRange(-100, 100); minimumSpinBox->setSingleStep(1); maximumSpinBox = new QSpinBox; maximumSpinBox->setRange(-100, 100); maximumSpinBox->setSingleStep(1); valueSpinBox = new QSpinBox; valueSpinBox->setRange(-100, 100); valueSpinBox->setSingleStep(1); orientationCombo = new QComboBox; orientationCombo->addItem(tr("Horizontal slider-like widgets")); orientationCombo->addItem(tr("Vertical slider-like widgets")); connect(orientationCombo, SIGNAL(activated(int)), stackedWidget, SLOT(setCurrentIndex(int))); connect(minimumSpinBox, SIGNAL(valueChanged(int)), horizontalSliders, SLOT(setMinimum(int))); connect(minimumSpinBox, SIGNAL(valueChanged(int)), verticalSliders, SLOT(setMinimum(int))); connect(maximumSpinBox, SIGNAL(valueChanged(int)), horizontalSliders, SLOT(setMaximum(int))); connect(maximumSpinBox, SIGNAL(valueChanged(int)), verticalSliders, SLOT(setMaximum(int))); connect(invertedAppearance, SIGNAL(toggled(bool)), horizontalSliders, SLOT(invertAppearance(bool))); connect(invertedAppearance, SIGNAL(toggled(bool)), verticalSliders, SLOT(invertAppearance(bool))); connect(invertedKeyBindings, SIGNAL(toggled(bool)), horizontalSliders, SLOT(invertKeyBindings(bool))); connect(invertedKeyBindings, SIGNAL(toggled(bool)), verticalSliders, SLOT(invertKeyBindings(bool))); QGridLayout *controlsLayout = new QGridLayout; controlsLayout->addWidget(minimumLabel, 0, 0); controlsLayout->addWidget(maximumLabel, 1, 0); controlsLayout->addWidget(valueLabel, 2, 0); controlsLayout->addWidget(minimumSpinBox, 0, 1); controlsLayout->addWidget(maximumSpinBox, 1, 1); controlsLayout->addWidget(valueSpinBox, 2, 1); controlsLayout->addWidget(invertedAppearance, 0, 2); controlsLayout->addWidget(invertedKeyBindings, 1, 2); controlsLayout->addWidget(orientationCombo, 3, 0, 1, 3); controlsGroup->setLayout(controlsLayout); }