Method HandleMouseButtonEvent

src/SFGUI/Window.cpp:133–203

}

void Window::HandleMouseButtonEvent( sf::Mouse::Button button, bool press, int x, int y ) {
	if( button != sf::Mouse::Button::Left ) {
		return;
	}

	if( !press ) {
		m_dragging = false;
		m_resizing = false;
		return;
	}

	unsigned int title_font_size( Context::Get().GetEngine().GetProperty<unsigned int>( "FontSize", shared_from_this() ) );
	const sf::Font& title_font( *Context::Get().GetEngine().GetResourceManager().GetFont( Context::Get().GetEngine().GetProperty<std::string>( "FontName", shared_from_this() ) ) );
	float title_height(
		Context::Get().GetEngine().GetFontLineHeight( title_font, title_font_size ) +
		2 * Context::Get().GetEngine().GetProperty<float>( "TitlePadding", shared_from_this() )
	);

	// Check for mouse being inside the title area.
	sf::FloatRect area(
		GetAllocation().position,
		{ GetAllocation().size.x, title_height }
	);

	if( area.contains( sf::Vector2f( sf::Vector2( x, y ) ) ) ) {
		if( HasStyle( TITLEBAR ) && !m_dragging ) {
			if( HasStyle( CLOSE ) ) {
				auto close_height( Context::Get().GetEngine().GetProperty<float>( "CloseHeight", shared_from_this() ) );

				auto button_margin = ( title_height - close_height ) / 2.f;

				auto close_rect = sf::FloatRect(
					{ GetAllocation().position.x + GetAllocation().size.x - button_margin - close_height, GetAllocation().position.y + button_margin },
					{ close_height, close_height }
				);

				if( close_rect.contains( sf::Vector2f( sf::Vector2( x, y ) ) ) ) {
					GetSignals().Emit( OnCloseButton );
					return;
				}
			}

			m_dragging = true;
			m_resizing = false;

			m_drag_offset = sf::Vector2f(
				static_cast<float>( x ) - GetAllocation().position.x,
				static_cast<float>( y ) - GetAllocation().position.y
			);
		}
	}
	else {
		float handle_size( Context::Get().GetEngine().GetProperty<float>( "HandleSize", shared_from_this() ) );

		area.position.x = GetAllocation().position.x + GetAllocation().size.x - handle_size;
		area.position.y = GetAllocation().position.y + GetAllocation().size.y - handle_size;
		area.size.x = handle_size;
		area.size.y = handle_size;