/**************************************************************
 * 
 * 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/attribute/fillgraphicattribute.hxx>
#include <vcl/graph.hxx>

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

namespace drawinglayer
{
	namespace attribute
	{
		class ImpFillGraphicAttribute
		{
		public:
			// refcounter
			sal_uInt32								mnRefCount;

            // data definitions
			Graphic                                 maGraphic;
			basegfx::B2DRange						maGraphicRange;

            // tiling definitions, offsets in X/Y in percent for each 2nd row.
            // If both are set, Y is ignored (X has precedence)
            double                                  mfOffsetX;
            double                                  mfOffsetY;

			// bitfield
			unsigned								mbTiling : 1;

			ImpFillGraphicAttribute(
                const Graphic& rGraphic, 
                const basegfx::B2DRange& rGraphicRange, 
                bool bTiling,
                double fOffsetX,
                double fOffsetY)
			:	mnRefCount(0),
		    	maGraphic(rGraphic),
			    maGraphicRange(rGraphicRange),
                mfOffsetX(fOffsetX),
                mfOffsetY(fOffsetY),
			    mbTiling(bTiling)
		    {
		    }

			// data read access
			const Graphic& getGraphic() const { return maGraphic; }
			const basegfx::B2DRange& getGraphicRange() const { return maGraphicRange; }
			bool getTiling() const { return mbTiling; }
            double getOffsetX() const { return mfOffsetX; }
            double getOffsetY() const { return mfOffsetY; }

            bool operator==(const ImpFillGraphicAttribute& rCandidate) const
		    {
			    return (getGraphic() == rCandidate.getGraphic()
				    && getGraphicRange() == rCandidate.getGraphicRange()
				    && getTiling() == rCandidate.getTiling()
                    && getOffsetX() == rCandidate.getOffsetX()
                    && getOffsetY() == rCandidate.getOffsetY());
		    }

            static ImpFillGraphicAttribute* get_global_default()
            {
                static ImpFillGraphicAttribute* pDefault = 0;

                if(!pDefault)
                {
                    pDefault = new ImpFillGraphicAttribute(
                        Graphic(),
                        basegfx::B2DRange(),
                        false,
                        0.0, 
                        0.0);

                    // never delete; start with RefCount 1, not 0
    			    pDefault->mnRefCount++;
                }

                return pDefault;
            }
		};

        FillGraphicAttribute::FillGraphicAttribute(
            const Graphic& rGraphic, 
            const basegfx::B2DRange& rGraphicRange, 
            bool bTiling,
            double fOffsetX,
            double fOffsetY)
		:	mpFillGraphicAttribute(
                new ImpFillGraphicAttribute(
                    rGraphic, 
                    rGraphicRange, 
                    bTiling, 
                    basegfx::clamp(fOffsetX, 0.0, 1.0), 
                    basegfx::clamp(fOffsetY, 0.0, 1.0)))
		{
		}

		FillGraphicAttribute::FillGraphicAttribute()
        :	mpFillGraphicAttribute(ImpFillGraphicAttribute::get_global_default())
		{
			mpFillGraphicAttribute->mnRefCount++;
		}

        FillGraphicAttribute::FillGraphicAttribute(const FillGraphicAttribute& rCandidate)
		:	mpFillGraphicAttribute(rCandidate.mpFillGraphicAttribute)
		{
			mpFillGraphicAttribute->mnRefCount++;
		}

		FillGraphicAttribute::~FillGraphicAttribute()
		{
			if(mpFillGraphicAttribute->mnRefCount)
			{
				mpFillGraphicAttribute->mnRefCount--;
			}
			else
			{
				delete mpFillGraphicAttribute;
			}
		}

        bool FillGraphicAttribute::isDefault() const
        {
            return mpFillGraphicAttribute == ImpFillGraphicAttribute::get_global_default();
        }

        FillGraphicAttribute& FillGraphicAttribute::operator=(const FillGraphicAttribute& rCandidate)
		{
			if(rCandidate.mpFillGraphicAttribute != mpFillGraphicAttribute)
			{
				if(mpFillGraphicAttribute->mnRefCount)
				{
					mpFillGraphicAttribute->mnRefCount--;
				}
				else
				{
					delete mpFillGraphicAttribute;
				}
				
				mpFillGraphicAttribute = rCandidate.mpFillGraphicAttribute;
				mpFillGraphicAttribute->mnRefCount++;
			}

			return *this;
		}

		bool FillGraphicAttribute::operator==(const FillGraphicAttribute& rCandidate) const
		{
			if(rCandidate.mpFillGraphicAttribute == mpFillGraphicAttribute)
			{
				return true;
			}

			if(rCandidate.isDefault() != isDefault())
			{
				return false;
			}

			return (*rCandidate.mpFillGraphicAttribute == *mpFillGraphicAttribute);
		}

        const Graphic& FillGraphicAttribute::getGraphic() const 
        { 
            return mpFillGraphicAttribute->getGraphic(); 
        }

        const basegfx::B2DRange& FillGraphicAttribute::getGraphicRange() const 
        { 
            return mpFillGraphicAttribute->getGraphicRange(); 
        }

        bool FillGraphicAttribute::getTiling() const 
        { 
            return mpFillGraphicAttribute->getTiling(); 
        }

        double FillGraphicAttribute::getOffsetX() const
        {
            return mpFillGraphicAttribute->getOffsetX();
        }

        double FillGraphicAttribute::getOffsetY() const
        {
            return mpFillGraphicAttribute->getOffsetY();
        }

    } // end of namespace attribute
} // end of namespace drawinglayer

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