xref: /trunk/main/drawinglayer/source/primitive2d/backgroundcolorprimitive2d.cxx (revision cf6516809c57e1bb0a940545cca99cdad54d4ce2)

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 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/



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

#include <drawinglayer/primitive2d/backgroundcolorprimitive2d.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#include <basegfx/tools/canvastools.hxx>
#include <drawinglayer/geometry/viewinformation2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>

//////////////////////////////////////////////////////////////////////////////

using namespace com::sun::star;

//////////////////////////////////////////////////////////////////////////////

namespace drawinglayer
{
    namespace primitive2d
    {
        Primitive2DSequence BackgroundColorPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
        {
            if(!rViewInformation.getViewport().isEmpty())
            {
                const basegfx::B2DPolygon aOutline(basegfx::tools::createPolygonFromRect(rViewInformation.getViewport()));
                const Primitive2DReference xRef(new PolyPolygonColorPrimitive2D(basegfx::B2DPolyPolygon(aOutline), getBColor()));
                return Primitive2DSequence(&xRef, 1L);
            }
            else
            {
                return Primitive2DSequence();
            }
        }

        BackgroundColorPrimitive2D::BackgroundColorPrimitive2D(
            const basegfx::BColor& rBColor)
        :   BufferedDecompositionPrimitive2D(),
            maBColor(rBColor),
            maLastViewport()
        {
        }

        bool BackgroundColorPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
        {
            if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
            {
                const BackgroundColorPrimitive2D& rCompare = (BackgroundColorPrimitive2D&)rPrimitive;

                return (getBColor() == rCompare.getBColor());
            }

            return false;
        }

        basegfx::B2DRange BackgroundColorPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
        {
            // always as big as the view
            return rViewInformation.getViewport();
        }

        Primitive2DSequence BackgroundColorPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
        {
            ::osl::MutexGuard aGuard( m_aMutex );

            if(getBuffered2DDecomposition().hasElements() && (maLastViewport != rViewInformation.getViewport()))
            {
                // conditions of last local decomposition have changed, delete
                const_cast< BackgroundColorPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DSequence());
            }

            if(!getBuffered2DDecomposition().hasElements())
            {
                // remember ViewRange
                const_cast< BackgroundColorPrimitive2D* >(this)->maLastViewport = rViewInformation.getViewport();
            }

            // use parent implementation
            return BufferedDecompositionPrimitive2D::get2DDecomposition(rViewInformation);
        }

        // provide unique ID
        ImplPrimitrive2DIDBlock(BackgroundColorPrimitive2D, PRIMITIVE2D_ID_BACKGROUNDCOLORPRIMITIVE2D)

    } // end of namespace primitive2d
} // end of namespace drawinglayer

//////////////////////////////////////////////////////////////////////////////
// eof