slidersgroup.cpp Example File

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  #include <QtWidgets>

  #include "slidersgroup.h"

  SlidersGroup::SlidersGroup(Qt::Orientation orientation, const QString &title,
                             QWidget *parent)
      : QGroupBox(title, parent)
  {
      slider = new QSlider(orientation);
      slider->setFocusPolicy(Qt::StrongFocus);
      slider->setTickPosition(QSlider::TicksBothSides);
      slider->setTickInterval(10);
      slider->setSingleStep(1);

      scrollBar = new QScrollBar(orientation);
      scrollBar->setFocusPolicy(Qt::StrongFocus);

      dial = new QDial;
      dial->setFocusPolicy(Qt::StrongFocus);

      connect(slider, SIGNAL(valueChanged(int)), scrollBar, SLOT(setValue(int)));
      connect(scrollBar, SIGNAL(valueChanged(int)), dial, SLOT(setValue(int)));
      connect(dial, SIGNAL(valueChanged(int)), slider, SLOT(setValue(int)));
      connect(dial, SIGNAL(valueChanged(int)), this, SIGNAL(valueChanged(int)));

      QBoxLayout::Direction direction;

      if (orientation == Qt::Horizontal)
          direction = QBoxLayout::TopToBottom;
      else
          direction = QBoxLayout::LeftToRight;

      QBoxLayout *slidersLayout = new QBoxLayout(direction);
      slidersLayout->addWidget(slider);
      slidersLayout->addWidget(scrollBar);
      slidersLayout->addWidget(dial);
      setLayout(slidersLayout);
  }

  void SlidersGroup::setValue(int value)
  {
      slider->setValue(value);
  }

  void SlidersGroup::setMinimum(int value)
  {
      slider->setMinimum(value);
      scrollBar->setMinimum(value);
      dial->setMinimum(value);
  }

  void SlidersGroup::setMaximum(int value)
  {
      slider->setMaximum(value);
      scrollBar->setMaximum(value);
      dial->setMaximum(value);
  }

  void SlidersGroup::invertAppearance(bool invert)
  {
      slider->setInvertedAppearance(invert);
      scrollBar->setInvertedAppearance(invert);
      dial->setInvertedAppearance(invert);
  }

  void SlidersGroup::invertKeyBindings(bool invert)
  {
      slider->setInvertedControls(invert);
      scrollBar->setInvertedControls(invert);
      dial->setInvertedControls(invert);
  }