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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_canvas.hxx"

#include <canvas/debug.hxx>

#include "cairo_cachedbitmap.hxx"
#include "cairo_repainttarget.hxx"

#include <com/sun/star/rendering/RepaintResult.hpp>
#include <com/sun/star/rendering/XPolyPolygon2D.hpp>

#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/tools/canvastools.hxx>


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

namespace cairocanvas
{
    CachedBitmap::CachedBitmap( Surface* pSurface,
                                const rendering::ViewState&                 rUsedViewState,
                                const rendering::RenderState&                   rUsedRenderState,
                                const uno::Reference< rendering::XCanvas >& rTarget ) :
        CachedPrimitiveBase( rUsedViewState, rTarget, true ),
    mpSurface( pSurface ),
    maRenderState( rUsedRenderState )
    {
        mpSurface->Ref();
    }

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

        if( mpSurface ) {
            mpSurface->Unref();
            mpSurface = NULL;
        }

        CachedPrimitiveBase::disposing();
    }

    ::sal_Int8 CachedBitmap::doRedraw( const rendering::ViewState&                  rNewState,
                                       const rendering::ViewState&                  /*rOldState*/,
                                       const uno::Reference< rendering::XCanvas >&  rTargetCanvas,
                                       bool                                         bSameViewTransform )
    {
        ENSURE_AND_THROW( bSameViewTransform,
                          "CachedBitmap::doRedraw(): base called with changed view transform "
                          "(told otherwise during construction)" );

        RepaintTarget* pTarget = dynamic_cast< RepaintTarget* >(rTargetCanvas.get());

        ENSURE_AND_THROW( pTarget,
                          "CachedBitmap::redraw(): cannot cast target to RepaintTarget" );

        if( !pTarget->repaint( mpSurface,
                               rNewState,
                               maRenderState ) )
        {
            // target failed to repaint
            return rendering::RepaintResult::FAILED;
        }

        return rendering::RepaintResult::REDRAWN;
    }
}