Function UpdateFontTexture

imgui-SFML.cpp:628–653

}

bool UpdateFontTexture()
{
    assert(s_currWindowCtx);

    ImGuiIO&       io     = ImGui::GetIO();
    unsigned char* pixels = nullptr;
    int            width  = 0;
    int            height = 0;

    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);

    sf::Texture newTexture;
    if (!newTexture.resize(sf::Vector2u(sf::Vector2(width, height))))
    {
        return false;
    }

    newTexture.update(pixels);

    ImTextureID texID = convertGLTextureHandleToImTextureID(newTexture.getNativeHandle());
    io.Fonts->SetTexID(texID);

    s_currWindowCtx->fontTexture = std::move(newTexture);

    return true;
}

std::optional<sf::Texture>& GetFontTexture()
{