/**************************************************************
 * 
 * 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
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 *************************************************************/



#ifndef _SV_GRADIENT_HXX
#define _SV_GRADIENT_HXX

#include <vcl/dllapi.h>
#include <tools/color.hxx>

#include <vcl/vclenum.hxx>

// ------------------
// - Gradient-Types -
// ------------------

/*
#ifndef ENUM_GRADIENTSTYLE_DECLARED
#define ENUM_GRADIENTSTYLE_DECLARED
enum GradientStyle { GRADIENT_LINEAR, GRADIENT_AXIAL, GRADIENT_RADIAL,
                     GRADIENT_ELLIPTICAL, GRADIENT_SQUARE, GRADIENT_RECT };
#endif
*/

// ----------------
// - Impl_Gradient -
// ----------------

class SvStream;

class Impl_Gradient
{
public:
    sal_uLong           mnRefCount;
    GradientStyle   meStyle;
    Color           maStartColor;
    Color           maEndColor;
    sal_uInt16          mnAngle;
    sal_uInt16          mnBorder;
    sal_uInt16          mnOfsX;
    sal_uInt16          mnOfsY;
    sal_uInt16          mnIntensityStart;
    sal_uInt16          mnIntensityEnd;
    sal_uInt16          mnStepCount;

    friend SvStream& operator>>( SvStream& rIStm, Impl_Gradient& rImplGradient );
    friend SvStream& operator<<( SvStream& rOStm, const Impl_Gradient& rImplGradient );

                    Impl_Gradient();
                    Impl_Gradient( const Impl_Gradient& rImplGradient );
};

// ------------
// - Gradient -
// ------------

class VCL_DLLPUBLIC Gradient
{
private:	
    Impl_Gradient*	mpImplGradient;
	void			MakeUnique();

public:
                    Gradient();
                    Gradient( const Gradient& rGradient );
                    Gradient( GradientStyle eStyle );
                    Gradient( GradientStyle eStyle,
                              const Color& rStartColor,
                              const Color& rEndColor );
                    ~Gradient();

    void            SetStyle( GradientStyle eStyle );
    GradientStyle   GetStyle() const { return mpImplGradient->meStyle; }

    void            SetStartColor( const Color& rColor );
    const Color&    GetStartColor() const { return mpImplGradient->maStartColor; }
    void            SetEndColor( const Color& rColor );
    const Color&    GetEndColor() const { return mpImplGradient->maEndColor; }

    void            SetAngle( sal_uInt16 nAngle );
    sal_uInt16          GetAngle() const { return mpImplGradient->mnAngle; }

    void            SetBorder( sal_uInt16 nBorder );
    sal_uInt16          GetBorder() const { return mpImplGradient->mnBorder; }
    void            SetOfsX( sal_uInt16 nOfsX );
    sal_uInt16          GetOfsX() const { return mpImplGradient->mnOfsX; }
    void            SetOfsY( sal_uInt16 nOfsY );
    sal_uInt16          GetOfsY() const { return mpImplGradient->mnOfsY; }

    void            SetStartIntensity( sal_uInt16 nIntens );
    sal_uInt16          GetStartIntensity() const { return mpImplGradient->mnIntensityStart; }
    void            SetEndIntensity( sal_uInt16 nIntens );
    sal_uInt16          GetEndIntensity() const { return mpImplGradient->mnIntensityEnd; }

    void            SetSteps( sal_uInt16 nSteps );
    sal_uInt16          GetSteps() const { return mpImplGradient->mnStepCount; }

    Gradient&       operator=( const Gradient& rGradient );
    sal_Bool            operator==( const Gradient& rGradient ) const;
    sal_Bool            operator!=( const Gradient& rGradient ) const
                        { return !(Gradient::operator==( rGradient )); }
    sal_Bool            IsSameInstance( const Gradient& rGradient ) const
                        { return (mpImplGradient == rGradient.mpImplGradient); }

    friend VCL_DLLPUBLIC SvStream& operator>>( SvStream& rIStm, Gradient& rGradient );
    friend VCL_DLLPUBLIC SvStream& operator<<( SvStream& rOStm, const Gradient& rGradient );
};

#endif  // _SV_GRADIENT_HXX