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/* This file is part of the KDE project
Copyright (C) 2002 - 2005, The Karbon Developers
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __VGRADIENT_H__
#define __VGRADIENT_H__
#include <qptrlist.h>
#include <qptrvector.h>
#include <koffice_export.h>
#include <KoPoint.h>
#include "vcolor.h"
class QDomElement;
class KoGenStyle;
class KoGenStyles;
class KoStyleStack;
class VObject;
class VColorStop
{
public:
VColorStop( double r, double m, VColor c )
{ rampPoint = r; midPoint = m; color = c; };
VColorStop( const VColorStop& colorStop )
{ rampPoint = colorStop.rampPoint; midPoint = colorStop.midPoint; color = colorStop.color; };
VColor color;
// relative position of color point (0.0-1.0):
float rampPoint;
// relative position of midpoint (0.0-1.0)
// between two ramp points. ignored for last VColorStop.
float midPoint;
friend inline bool operator== ( VColorStop& s1, VColorStop& s2 )
{ return s1.rampPoint == s2.rampPoint; };
}; // VColorStop
class KARBONBASE_EXPORT VGradient
{
friend class VGradientWidget;
public:
enum VGradientType
{
linear = 0,
radial = 1,
conic = 2
};
enum VGradientRepeatMethod
{
none = 0,
reflect = 1,
repeat = 2
};
class VColorStopList : public QPtrList<VColorStop>
{
protected:
virtual int compareItems( QPtrCollection::Item item1, QPtrCollection::Item item2 );
}; // VColorStopList
VGradient( VGradientType type = linear );
VGradient( const VGradient& gradient );
VGradient& operator=(const VGradient& gradient);
VGradientType type() const { return m_type; }
void setType( VGradientType type ) { m_type = type; }
VGradientRepeatMethod repeatMethod() const { return m_repeatMethod; }
void setRepeatMethod( VGradientRepeatMethod repeatMethod ) { m_repeatMethod = repeatMethod; }
const QPtrVector<VColorStop> colorStops() const;
void addStop( const VColorStop& colorStop );
void addStop( const VColor &color, float rampPoint, float midPoint );
void removeStop( const VColorStop& colorStop );
void clearStops();
KoPoint origin() const { return m_origin; }
void setOrigin( const KoPoint &origin ) { m_origin = origin; }
KoPoint focalPoint() const { return m_focalPoint; }
void setFocalPoint( const KoPoint &focalPoint ) { m_focalPoint = focalPoint; }
KoPoint vector() const { return m_vector; }
void setVector( const KoPoint &vector ) { m_vector = vector; }
void save( QDomElement& element ) const;
QString saveOasis( KoGenStyles &mainStyles ) const;
void load( const QDomElement& element );
void loadOasis( const QDomElement &object, KoStyleStack &stack, VObject* parent = 0L );
void transform( const QWMatrix& m );
protected:
VColorStopList m_colorStops;
private:
VGradientType m_type : 2;
VGradientRepeatMethod m_repeatMethod : 2;
// coordinates:
KoPoint m_origin;
KoPoint m_focalPoint;
KoPoint m_vector;
}; // VGradient
#endif /* __VGRADIENT_H__ */
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