Function GetOrCreateTextLayout

engine/gamesys/src/gamesys/components/comp_label.cpp:174–216

    }

    static HTextLayout GetOrCreateTextLayout(LabelComponent* component)
    {
        FontResource* font_resource = GetFontResource(component, component->m_Resource);
        uint32_t font_version = font_resource ? ResFontGetVersion(font_resource) : 0;

        if (!component->m_TextLayoutDirty && component->m_TextLayout && font_resource &&
            component->m_TextLayoutFontVersion == font_version)
        {
            return component->m_TextLayout;
        }

        InvalidateTextLayout(component);

        dmRender::HFontMap font_map = font_resource ? ResFontGetHandle(font_resource) : 0;
        if (!font_map || !component->m_Text)
            return 0;

        TextLayoutSettings settings = {0};
        settings.m_Width = component->m_Size.getX();
        settings.m_LineBreak = component->m_LineBreak;
        settings.m_Leading = component->m_Leading;
        settings.m_Tracking = component->m_Tracking;
        settings.m_Size = dmRender::GetFontMapSize(font_map);
        settings.m_Monospace = dmRender::GetFontMapMonospaced(font_map);
        settings.m_Padding = dmRender::GetFontMapPadding(font_map);

        dmArray<uint32_t> codepoints;
        TextToCodePoints(component->m_Text, codepoints);

        HTextLayout layout = 0;
        TextResult r = TextLayoutCreate(dmRender::GetFontCollection(font_map), codepoints.Begin(), codepoints.Size(), &settings, &layout);
        if (r != TEXT_RESULT_OK)
        {
            if (layout)
                TextLayoutRelease(layout);
            return 0;
        }

        component->m_TextLayout = layout;
        component->m_TextLayoutFontVersion = font_version;
        component->m_TextLayoutDirty = 0;
        return component->m_TextLayout;
    }

    void ReHash(LabelComponent* component)
    {