Quelle  UnoGraphicObject.cxx

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#include <memory>
#include <cppuhelper/implbase.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <com/sun/star/graphic/XGraphicObject.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <vcl/GraphicObject.hxx>
#include <mutex>

using namespace css;

namespace {

typedef ::cppu::WeakImplHelper<graphic::XGraphicObject, css::lang::XServiceInfo> GraphicObject_BASE;

 // Simple uno wrapper around the GraphicObject class to allow basic
 // access. ( and solves a horrible cyclic link problem between
 // goodies/toolkit/extensions )
class GraphicObjectImpl : public GraphicObject_BASE
{
     std::mutex m_aMutex;
     std::optional<GraphicObject> mpGraphicObject;

public:
    /// @throws uno::RuntimeException
    explicit GraphicObjectImpl(uno::Sequence<uno::Any> const & rArgs);

     // XGraphicObject
    virtual uno::Reference<graphic::XGraphic> SAL_CALL getGraphic() override;
    virtual void SAL_CALL setGraphic(uno::Reference<graphic::XGraphic> const & rxGraphic) override;

    virtual OUString SAL_CALL getImplementationName() override
    {
        return u"com.sun.star.graphic.GraphicObject"_ustr;
    }

    virtual sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override
    {
        return cppu::supportsService(this, ServiceName);
    }

    virtual css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override
    {
        return { u"com.sun.star.graphic.GraphicObject"_ustr };
    }
};

GraphicObjectImpl::GraphicObjectImpl(const uno::Sequence<uno::Any>& /*rArgs*/)
{
    mpGraphicObject.emplace();
}

uno::Reference<graphic::XGraphic> SAL_CALL GraphicObjectImpl::getGraphic()
{
    std::scoped_lock aGuard(m_aMutex);

    if (!mpGraphicObject)
        throw uno::RuntimeException();
    return mpGraphicObject->GetGraphic().GetXGraphic();
}

void SAL_CALL GraphicObjectImpl::setGraphic(uno::Reference<graphic::XGraphic> const &&nbsp;rxGraphic)
{
    std::scoped_lock aGuard(m_aMutex);

    if (!mpGraphicObject)
        throw uno::RuntimeException();
    Graphic aGraphic(rxGraphic);
    mpGraphicObject->SetGraphic(aGraphic);
}

} // end anonymous namespace

extern "C" SAL_DLLPUBLIC_EXPORT
css::uno::XInterface* com_sun_star_graphic_GraphicObject_get_implementation(
                            SAL_UNUSED_PARAMETER uno::XComponentContext*,
                            uno::Sequence<uno::Any> const & rArguments)
{
    return cppu::acquire(new GraphicObjectImpl(rArguments));
}

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