Method GetSliderRect

src/SFGUI/Scrollbar.cpp:36–71

}

const sf::FloatRect Scrollbar::GetSliderRect() const {
	float mimimum_slider_length( Context::Get().GetEngine().GetProperty<float>( "SliderMinimumLength", shared_from_this() ) );

	Adjustment::Ptr adjustment( GetAdjustment() );

	auto value_range = std::max( adjustment->GetUpper() - adjustment->GetLower() - adjustment->GetPageSize(), .0f );
	auto pages = std::max( ( adjustment->GetPageSize() > .0f ) ? ( ( adjustment->GetUpper() - adjustment->GetLower() ) / adjustment->GetPageSize() ) : 1.f, 1.f );

	if( GetOrientation() == Orientation::HORIZONTAL ) {
		auto stepper_length = GetAllocation().size.y;
		auto trough_length = GetAllocation().size.x - 2.f * stepper_length;
		auto slider_length = std::max( mimimum_slider_length, trough_length / pages );

		auto slider_x = stepper_length;
		auto slider_y = 0.f;

		if( value_range > .0f ) {
			slider_x = stepper_length + ( trough_length - slider_length ) * ( adjustment->GetValue() - adjustment->GetLower() ) / value_range;
		}

		return sf::FloatRect( { slider_x, slider_y }, { slider_length, GetAllocation().size.y } );
	}

	auto stepper_length = GetAllocation().size.x;
	auto trough_length = GetAllocation().size.y - 2.f * stepper_length;
	auto slider_length = std::max( mimimum_slider_length, trough_length / pages );

	auto slider_x = 0.f;
	auto slider_y = stepper_length;

	if( value_range > .0f ) {
		slider_y = stepper_length + ( trough_length - slider_length ) * ( adjustment->GetValue() - adjustment->GetLower() ) / value_range;
	}

	return sf::FloatRect( { slider_x, slider_y }, { GetAllocation().size.x, slider_length } );
}

bool Scrollbar::IsDecreaseStepperPressed() const {
	return m_decrease_pressed;