Quelle  cachedprimitivebase.cxx   Sprache: C

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#include <sal/config.h>

#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/utils/canvastools.hxx>
#include <com/sun/star/rendering/RepaintResult.hpp>
#include <cppuhelper/supportsservice.hxx>

#include <base/cachedprimitivebase.hxx>
#include <utility>


using namespace ::com::sun::star;

namespace canvas
{
    CachedPrimitiveBase::CachedPrimitiveBase( rendering::ViewState                    aUsedViewState,
                                              uno::Reference< rendering::XCanvas >    xTarget ) :
        maUsedViewState(std::move( aUsedViewState )),
        mxTarget(std::move( xTarget ))
    {
    }

    CachedPrimitiveBase::~CachedPrimitiveBase()
    {
    }

    void CachedPrimitiveBase::disposing(std::unique_lock<std::mutex>& /*rGuard*/)
    {
        maUsedViewState.Clip.clear();
        mxTarget.clear();
    }

    sal_Int8 SAL_CALL CachedPrimitiveBase::redraw( const rendering::ViewState& aState )
    {
        ::basegfx::B2DHomMatrix aUsedTransformation;
        ::basegfx::B2DHomMatrix aNewTransformation;

        ::basegfx::unotools::homMatrixFromAffineMatrix( aUsedTransformation,
                                                        maUsedViewState.AffineTransform );
        ::basegfx::unotools::homMatrixFromAffineMatrix( aNewTransformation,
                                                        aState.AffineTransform );

        const bool bSameViewTransforms( aUsedTransformation == aNewTransformation );

        if( !bSameViewTransforms )
        {
            // differing transformations, don't try to draft the
            // output, just plain fail here.
            return rendering::RepaintResult::FAILED;
        }

        return doRedraw( aState,
                         maUsedViewState,
                         mxTarget,
                         bSameViewTransforms );
    }

    OUString SAL_CALL CachedPrimitiveBase::getImplementationName(  )
    {
        return u"canvas::CachedPrimitiveBase"_ustr;
    }

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

    uno::Sequence< OUString > SAL_CALL CachedPrimitiveBase::getSupportedServiceNames(  )
    {
        return { u"com.sun.star.rendering.CachedBitmap"_ustr };
    }
}

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