Method HandleMouseMoveEvent

src/SFGUI/Notebook.cpp:351–458

}

void Notebook::HandleMouseMoveEvent( int x, int y ) {
	float padding( Context::Get().GetEngine().GetProperty<float>( "Padding", shared_from_this() ) );
	float border_width( Context::Get().GetEngine().GetProperty<float>( "BorderWidth", shared_from_this() ) );
	float scroll_button_size( Context::Get().GetEngine().GetProperty<float>( "ScrollButtonSize", shared_from_this() ) );

	auto old_prelight_tab = m_prelight_tab;
	m_prelight_tab = -1;

	auto old_forward_scroll_prelight = m_forward_scroll_prelight;
	auto old_backward_scroll_prelight = m_backward_scroll_prelight;

	m_forward_scroll_prelight = false;
	m_backward_scroll_prelight = false;

	if( !GetDisplayedTabCount() ) {
		return;
	}

	sf::Vector2f tab_size( GetNthTabLabel( 0 )->GetAllocation().size.x, GetNthTabLabel( 0 )->GetAllocation().size.y );

	sf::FloatRect scroll_button_allocation( GetAllocation() );

	if( GetFirstDisplayedTab() != 0 ) {
		// Handle backward scrolling button.
		switch( GetTabPosition() ) {
			case TabPosition::TOP:
				scroll_button_allocation.position.x += 0.f;
				scroll_button_allocation.position.y += 0.f;
				scroll_button_allocation.size.x = scroll_button_size;
				scroll_button_allocation.size.y = tab_size.y + 2.f * ( padding + border_width );
				break;
			case TabPosition::BOTTOM:
				scroll_button_allocation.position.x += 0.f;
				scroll_button_allocation.position.y += GetAllocation().size.y - ( scroll_button_size + padding );
				scroll_button_allocation.size.x = scroll_button_size;
				scroll_button_allocation.size.y = tab_size.y + 2.f * ( padding + border_width );
				break;
			case TabPosition::LEFT:
				scroll_button_allocation.position.x += 0.f;
				scroll_button_allocation.position.y += 0.f;
				scroll_button_allocation.size.x = tab_size.x + 2.f * ( padding + border_width );
				scroll_button_allocation.size.y = scroll_button_size;
				break;
			case TabPosition::RIGHT:
				scroll_button_allocation.position.x += ( GetAllocation().size.x - ( tab_size.x + 2.f * ( padding + border_width ) ) );
				scroll_button_allocation.position.y += 0.f;
				scroll_button_allocation.size.x = tab_size.x + 2.f * ( padding + border_width );
				scroll_button_allocation.size.y = scroll_button_size;
				break;
		}

		if( scroll_button_allocation.contains( sf::Vector2f( sf::Vector2( x, y ) ) ) ) {
			m_backward_scroll_prelight = true;
		}
	}

	if( GetFirstDisplayedTab() + GetDisplayedTabCount() < GetPageCount() ) {
		// Handle forward scrolling button.