Method onDraw

src/openrct2-ui/windows/TextInput.cpp:200–304

        }

        void onDraw(RenderTarget& rt) override
        {
            drawWidgets(rt);

            auto screenCoords = windowPos + ScreenCoordsXY{ kWindowSize.width / 2, widgets[WIDX_TITLE].bottom + 13 };

            int32_t no_lines = 0;

            if (_descriptionStringId == kStringIdNone)
            {
                drawTextWrapped(rt, screenCoords, kWindowSize.width, _description, { colours[1], TextAlignment::centre });
            }
            else
            {
                drawTextWrapped(
                    rt, screenCoords, kWindowSize.width, _descriptionStringId, _descriptionArgs,
                    { colours[1], TextAlignment::centre });
            }

            screenCoords.y += 25;

            // String length needs to add 12 either side of box
            // +13 for cursor when max length.
            u8string wrappedString;
            wrapString(
                u8string_view{ _buffer.data(), _buffer.size() }, kWindowSize.width - (24 + 13), FontStyle::medium,
                &wrappedString, &no_lines);

            Rectangle::fillInset(
                rt,
                { { windowPos.x + 10, screenCoords.y },
                  { windowPos.x + kWindowSize.width - 10, screenCoords.y + 10 * (no_lines + 1) + 3 } },
                colours[1], Rectangle::BorderStyle::inset, Rectangle::FillBrightness::light,
                Rectangle::FillMode::dontLightenWhenInset);

            screenCoords.y += 1;

            const utf8* wrapPointer = wrappedString.data();
            size_t char_count = 0;
            uint8_t cur_drawn = 0;

            auto* textInput = GetTextboxSession();
            int32_t cursorX = 0;
            int32_t cursorY = 0;
            for (int32_t line = 0; line <= no_lines; line++)
            {
                screenCoords.x = windowPos.x + 12;
                drawText(
                    rt, screenCoords, wrapPointer,
                    { colours[1], FontStyle::medium, { TextPaintFlag::noFormatting }, TextAlignment::left });

                size_t string_length = GetStringSize(wrapPointer) - 1;
                if (!cur_drawn && (textInput->SelectionStart <= char_count + string_length))
                {
                    // Make a view of the string for measuring the width.
                    cursorX = windowPos.x + 13
                        + getStringWidth(
                                  u8string_view{ wrapPointer, textInput->SelectionStart - char_count }, FontStyle::medium,