namespace phoenix {

Size pHorizontalSlider::minimumSize() {
  return {0, 20};
}

unsigned pHorizontalSlider::position() {
  return qtSlider->value();
}

void pHorizontalSlider::setLength(unsigned length) {
  length += length == 0;
  qtSlider->setRange(0, length - 1);
  qtSlider->setPageStep(length >> 3);
}

void pHorizontalSlider::setPosition(unsigned position) {
  qtSlider->setValue(position);
}

void pHorizontalSlider::constructor() {
  qtWidget = qtSlider = new QSlider(Qt::Horizontal);
  qtSlider->setRange(0, 100);
  qtSlider->setPageStep(101 >> 3);
  connect(qtSlider, SIGNAL(valueChanged(int)), SLOT(onChange()));

  pWidget::synchronizeState();
  setLength(horizontalSlider.state.length);
  setPosition(horizontalSlider.state.position);
}

void pHorizontalSlider::destructor() {
  delete qtSlider;
  qtWidget = qtSlider = nullptr;
}

void pHorizontalSlider::orphan() {
  destructor();
  constructor();
}

void pHorizontalSlider::onChange() {
  horizontalSlider.state.position = position();
  if(horizontalSlider.onChange) horizontalSlider.onChange();
}

}