Method CalculateRequisition

src/SFGUI/Notebook.cpp:37–101

}

sf::Vector2f Notebook::CalculateRequisition() {
	if( !GetPageCount() ) {
		return sf::Vector2f( 0.f, 0.f );
	}

	float padding( Context::Get().GetEngine().GetProperty<float>( "Padding", shared_from_this() ) );
	float border_width( Context::Get().GetEngine().GetProperty<float>( "BorderWidth", shared_from_this() ) );

	sf::Vector2f tab_requisition( 0.f, 0.f );
	sf::Vector2f child_requisition( 0.f, 0.f );

	for( const auto& child : m_children ) {
		if( ( GetTabPosition() == TabPosition::TOP ) || ( GetTabPosition() == TabPosition::BOTTOM ) ) {
			// Tabs are positioned horizontally.
			tab_requisition.x += ( child.tab_label->GetRequisition().x + 2.f * padding + border_width );
			tab_requisition.y = std::max( tab_requisition.y, child.tab_label->GetRequisition().y );
		}
		else {
			// Tabs are positioned vertically.
			tab_requisition.x = std::max( tab_requisition.x, child.tab_label->GetRequisition().x );
			tab_requisition.y += ( child.tab_label->GetRequisition().y + 2.f * padding + border_width );
		}

		child_requisition.x = std::max( child_requisition.x, child.child->GetRequisition().x );
		child_requisition.y = std::max( child_requisition.y, child.child->GetRequisition().y );
	}

	sf::Vector2f requisition( 0.f, 0.f );

	child_requisition.x += 2.f * ( padding + border_width );
	child_requisition.y += 2.f * ( padding + border_width );

	if( ( GetTabPosition() == TabPosition::TOP ) || ( GetTabPosition() == TabPosition::BOTTOM ) ) {
		// Tabs are positioned horizontally.
		tab_requisition.x += border_width;
		tab_requisition.y += ( border_width + 2.f * padding );

		requisition.x = std::max( tab_requisition.x, child_requisition.x );
		requisition.y = tab_requisition.y + child_requisition.y;
	}
	else {
		// Tabs are positioned vertically.
		tab_requisition.x += ( border_width + 2.f * padding );
		tab_requisition.y += border_width;

		requisition.x = tab_requisition.x + child_requisition.x;
		requisition.y = std::max( tab_requisition.y, child_requisition.y );
	}

	m_child_requisition = child_requisition;
	m_tab_requisition = tab_requisition;

	if( GetScrollable() ) {
		if( ( GetTabPosition() == TabPosition::TOP ) || ( GetTabPosition() == TabPosition::BOTTOM ) ) {
			m_tab_requisition.x = 0.f;
			requisition.x = m_child_requisition.x + 2.f * ( padding + border_width );
		}
		else {