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/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/
/* This file is part of the KDE project
Copyright (C) 2002, 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <QtAlgorithms>
#include "vgradientex.h"
#include "vgradient.h"
#include "scribusdoc.h"
// comparison function for use with stable_sort
bool compareStopsEx( const VColorStopEx* item1, const VColorStopEx* item2 )
{
double r1 = item1->rampPoint;
double r2 = item2->rampPoint;
return ( r1 < r2 ? true : false );
}
int VGradientEx::compareItems( const VColorStopEx* item1, const VColorStopEx* item2 ) const
{
double r1 = item1->rampPoint;
double r2 = item2->rampPoint;
return ( r1 == r2 ? 0 : r1 < r2 ? -1 : 1 );
} // VGradientEx::VColorStopList::compareItems
void VGradientEx::inSort( VColorStopEx* d )
{
int index = 0;
register VColorStopEx *n = m_colorStops.value(index);
while (n && compareItems(n,d) <= 0)
{
n = m_colorStops.value(index);
++index;
}
m_colorStops.insert( qMin(index, m_colorStops.size()), d );
}
VGradientEx::VGradientEx( VGradientEx::Type type ) : m_type( type )
{
// set up dummy gradient
addStop( ScColor(255,0,0) , 0.0, 0.5, 1.0 );
addStop( ScColor(255,255,0) , 1.0, 0.5, 1.0 );
setOrigin( FPoint( 0, 0 ) );
setVector( FPoint( 0, 50 ) );
setRepeatMethod( VGradientEx::reflect );
}
VGradientEx::VGradientEx( const VGradientEx& gradient )
{
m_origin = gradient.m_origin;
m_focalPoint = gradient.m_focalPoint;
m_vector = gradient.m_vector;
m_type = gradient.m_type;
m_repeatMethod = gradient.m_repeatMethod;
clearStops();
QList<VColorStopEx*> cs = gradient.colorStops();
qStableSort( cs.begin(), cs.end(), compareStopsEx);
for( int i = 0; i < cs.count(); ++i)
m_colorStops.append( new VColorStopEx( *cs[i] ) );
}
VGradientEx::VGradientEx( const VGradient& gradient, ScribusDoc& doc )
{
m_origin = gradient.origin();
m_focalPoint = gradient.focalPoint();
m_vector = gradient.vector();
m_type = (VGradientEx::Type) gradient.type();
m_repeatMethod = (VGradientEx::RepeatMethod) gradient.repeatMethod();
while (!m_colorStops.isEmpty())
delete m_colorStops.takeFirst();
QList<VColorStop*> stops = gradient.colorStops();
qStableSort( stops.begin(), stops.end(), compareStops);
for( int i = 0; i < stops.count(); ++i)
{
VColorStop stop( *stops[i] );
ScColor color = doc.PageColors[stop.name];
double ramp = stop.rampPoint;
double mid = stop.midPoint;
double opacity = stop.opacity;
int shade = stop.shade;
QString name = stop.name;
m_colorStops.append( new VColorStopEx(ramp, mid, color, opacity, name, shade) );
}
}
VGradientEx& VGradientEx::operator=( const VGradientEx& gradient )
{
if ( this == &gradient )
return *this;
m_origin = gradient.m_origin;
m_focalPoint = gradient.m_focalPoint;
m_vector = gradient.m_vector;
m_type = gradient.m_type;
m_repeatMethod = gradient.m_repeatMethod;
clearStops();
QList<VColorStopEx*> cs = gradient.colorStops();
qStableSort( cs.begin(), cs.end(), compareStopsEx);
for( int i = 0; i < cs.count(); ++i )
m_colorStops.append( new VColorStopEx( *cs[i] ) );
return *this;
} // VGradientEx::operator=
VGradientEx::~VGradientEx()
{
clearStops();
}
const QList<VColorStopEx*> VGradientEx::colorStops() const
{
return m_colorStops;
} // VGradientEx::colorStops()
void
VGradientEx::clearStops()
{
while (!m_colorStops.isEmpty())
delete m_colorStops.takeFirst();
}
void
VGradientEx::addStop( const VColorStopEx& colorStop )
{
inSort( new VColorStopEx( colorStop ) );
} // VGradientEx::addStop
void
VGradientEx::addStop( const ScColor &color, double rampPoint, double midPoint, double opa, QString name, int shade )
{
// Clamping between 0.0 and 1.0
rampPoint = qMax( 0.0, rampPoint );
rampPoint = qMin( 1.0, rampPoint );
// Clamping between 0.0 and 1.0
midPoint = qMax( 0.0, midPoint );
midPoint = qMin( 1.0, midPoint );
inSort( new VColorStopEx( rampPoint, midPoint, color, opa, name, shade ) );
}
void VGradientEx::removeStop( VColorStopEx& colorstop )
{
int n = m_colorStops.indexOf(&colorstop);
delete m_colorStops.takeAt(n);
}
void VGradientEx::removeStop( uint n )
{
delete m_colorStops.takeAt(n);
}
void VGradientEx::transform( const QMatrix &m )
{
double mx, my;
mx = m.m11() * m_origin.x() + m.m21() * m_origin.y() + m.dx();
my = m.m22() * m_origin.y() + m.m12() * m_origin.x() + m.dy();
m_origin = FPoint(mx, my);
mx = m.m11() * m_focalPoint.x() + m.m21() * m_focalPoint.y() + m.dx();
my = m.m22() * m_focalPoint.y() + m.m12() * m_focalPoint.x() + m.dy();
m_focalPoint = FPoint(mx, my);
mx = m.m11() * m_vector.x() + m.m21() * m_vector.y() + m.dx();
my = m.m22() * m_vector.y() + m.m12() * m_vector.x() + m.dy();
m_vector = FPoint(mx, my);
}
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