Method HandleUpdate

src/SFGUI/Scrollbar.cpp:276–348

}

void Scrollbar::HandleUpdate( float seconds ) {
	auto stepper_speed = Context::Get().GetEngine().GetProperty<float>( "StepperSpeed", shared_from_this() );

	m_elapsed_time += seconds;

	if( m_elapsed_time < (1.f / stepper_speed) ) {
		return;
	}

	if( m_repeat_wait ) {
		auto stepper_repeat_delay = Context::Get().GetEngine().GetProperty<std::uint32_t>( "StepperRepeatDelay", shared_from_this() );

		if( m_elapsed_time < (static_cast<float>( stepper_repeat_delay ) / 1000.f) ) {
			return;
		}

		m_repeat_wait = false;
	}

	m_elapsed_time = 0.f;

	// Increment / Decrement value while one of the steppers is pressed
	if( m_decrease_pressed ) {
		GetAdjustment()->Decrement();
		Invalidate();
		return;
	}
	else if( m_increase_pressed ) {
		GetAdjustment()->Increment();
		Invalidate();
		return;
	}

	auto slider_rect = GetSliderRect();
	slider_rect.position.x += GetAllocation().position.x;
	slider_rect.position.y += GetAllocation().position.y;

	// Increment / Decrement page while mouse is pressed on the trough
	if( m_page_decreasing ) {
		GetAdjustment()->DecrementPage();

		if( GetOrientation() == Orientation::HORIZONTAL ) {
			if( slider_rect.position.x + slider_rect.size.x < static_cast<float>( m_page_decreasing ) ) {
				m_page_decreasing = 0;
			}
		}
		else {
			if( slider_rect.position.y + slider_rect.size.y < static_cast<float>( m_page_decreasing ) ) {
				m_page_decreasing = 0;
			}
		}

		Invalidate();
		return;
	}
	else if( m_page_increasing ) {
		GetAdjustment()->IncrementPage();