window.cpp Example File

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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);
  }