Aspose::Words::Fonts::FontSourceBase::get_WarningCallback method

FontSourceBase::get_WarningCallback method

Called during processing of font source when an issue is detected that might result in formatting fidelity loss.

System::SharedPtr<Aspose::Words::IWarningCallback> Aspose::Words::Fonts::FontSourceBase::get_WarningCallback() const

Examples

Shows how to call warning callback when the font sources working with.

void FontSourceWarning()
{
    auto settings = MakeObject<FontSettings>();
    settings->SetFontsFolder(u"bad folder?", false);

    SharedPtr<FontSourceBase> source = settings->GetFontsSources()->idx_get(0);
    auto callback = MakeObject<ExFontSettings::FontSourceWarningCollector>();
    source->set_WarningCallback(callback);

    // Get the list of fonts to call warning callback.
    SharedPtr<System::Collections::Generic::IList<SharedPtr<PhysicalFontInfo>>> fontInfos = source->GetAvailableFonts();

    ASSERT_TRUE(callback->FontSubstitutionWarnings->idx_get(0)->get_Description().Contains(u"Error loading font from the folder \"bad folder?\""));
}

class FontSourceWarningCollector : public IWarningCallback
{
public:
    SharedPtr<WarningInfoCollection> FontSubstitutionWarnings;

    void Warning(SharedPtr<WarningInfo> info) override
    {
        FontSubstitutionWarnings->Warning(info);
    }

    FontSourceWarningCollector() : FontSubstitutionWarnings(MakeObject<WarningInfoCollection>())
    {
    }
};

See Also

Aspose::Words::Fonts::FontSourceBase::get_Type method Aspose::Words::Fonts::FontSourceBase::GetAvailableFonts method