Method CreateText

src/SFGUI/Renderer.cpp:108–196

}

Primitive::Ptr Renderer::CreateText( const sf::Text& text ) {
	const auto& font = text.getFont();
	auto character_size = text.getCharacterSize();
	auto color = text.getFillColor();

	auto atlas_offset = LoadFont( font, character_size );

	const auto& str = text.getString();

	auto horizontal_spacing = static_cast<float>( font.getGlyph( L' ', character_size, false ).advance );
	auto vertical_spacing = static_cast<float>( Context::Get().GetEngine().GetFontLineHeight( font, character_size ) );
	sf::Vector2f start_position( std::floor( text.getPosition().x + .5f ), std::floor( text.getPosition().y + static_cast<float>( character_size ) + .5f ) );

	sf::Vector2f position( start_position );

	const static auto tab_spaces = 2.f;

	std::uint32_t previous_character = 0;

	auto primitive = std::make_shared<Primitive>( str.getSize() * 4 );

	Primitive character_primitive( 4 );

	for( const auto& current_character : str ) {
		position.x += static_cast<float>( font.getKerning( previous_character, current_character, character_size ) );

		switch( current_character ) {
			case L' ':
				position.x += horizontal_spacing;
				continue;
			case L'\t':
				position.x += horizontal_spacing * tab_spaces;
				continue;
			case L'\n':
				position.y += vertical_spacing;
				position.x = start_position.x;
				continue;
			case L'\v':
				position.y += vertical_spacing * tab_spaces;
				continue;
			default:
				break;
		}

		const auto& glyph = font.getGlyph( current_character, character_size, false );

		PrimitiveVertex vertex0;
		PrimitiveVertex vertex1;
		PrimitiveVertex vertex2;
		PrimitiveVertex vertex3;

		vertex0.position = position + sf::Vector2f( static_cast<float>( glyph.bounds.position.x ), static_cast<float>( glyph.bounds.position.y ) );
		vertex1.position = position + sf::Vector2f( static_cast<float>( glyph.bounds.position.x ), static_cast<float>( glyph.bounds.position.y + glyph.bounds.size.y ) );
		vertex2.position = position + sf::Vector2f( static_cast<float>( glyph.bounds.position.x + glyph.bounds.size.x ), static_cast<float>( glyph.bounds.position.y ) );
		vertex3.position = position + sf::Vector2f( static_cast<float>( glyph.bounds.position.x + glyph.bounds.size.x ), static_cast<float>( glyph.bounds.position.y + glyph.bounds.size.y ) );

		vertex0.color = color;
		vertex1.color = color;