cachedprimitivebase.cxx

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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>


using namespace ::com::sun::star;

namespace canvas
{
    CachedPrimitiveBase::CachedPrimitiveBase( const rendering::ViewState&                   rUsedViewState,
                                              const uno::Reference< rendering::XCanvas >&   rTarget ) :
        CachedPrimitiveBase_Base( m_aMutex ),
        maUsedViewState( rUsedViewState ),
        mxTarget( rTarget )
    {
    }

    CachedPrimitiveBase::~CachedPrimitiveBase()
    {
    }

    void SAL_CALL CachedPrimitiveBase::disposing()
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        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 "canvas::CachedPrimitiveBase";
    }

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

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

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