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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#include <tools/gen.hxx>
#include <vcl/gradient.hxx>
class Gradient::Impl
{
public:
GradientStyle meStyle;
Color maStartColor;
Color maEndColor;
Degree10 mnAngle;
sal_uInt16 mnBorder;
sal_uInt16 mnOfsX;
sal_uInt16 mnOfsY;
sal_uInt16 mnIntensityStart;
sal_uInt16 mnIntensityEnd;
sal_uInt16 mnStepCount;
Impl()
: meStyle (GradientStyle::Linear)
, maStartColor(COL_BLACK)
, maEndColor(COL_WHITE)
, mnAngle(0)
, mnBorder(0)
, mnOfsX(50)
, mnOfsY(50)
, mnIntensityStart(100)
, mnIntensityEnd(100)
, mnStepCount(0)
{
}
Impl(const Impl& rImplGradient)
: meStyle (rImplGradient.meStyle)
, maStartColor(rImplGradient.maStartColor)
, maEndColor(rImplGradient.maEndColor)
, mnAngle(rImplGradient.mnAngle)
, mnBorder(rImplGradient.mnBorder)
, mnOfsX(rImplGradient.mnOfsX)
, mnOfsY(rImplGradient.mnOfsY)
, mnIntensityStart(rImplGradient.mnIntensityStart)
, mnIntensityEnd(rImplGradient.mnIntensityEnd)
, mnStepCount(rImplGradient.mnStepCount)
{
}
bool operator==(const Impl& rImpl_Gradient) const
{
return (meStyle == rImpl_Gradient.meStyle)
&& (mnAngle == rImpl_Gradient.mnAngle)
&& (mnBorder == rImpl_Gradient.mnBorder)
&& (mnOfsX == rImpl_Gradient.mnOfsX)
&& (mnOfsY == rImpl_Gradient.mnOfsY)
&& (mnStepCount == rImpl_Gradient.mnStepCount)
&& (mnIntensityStart == rImpl_Gradient.mnIntensityStart)
&& (mnIntensityEnd == rImpl_Gradient.mnIntensityEnd)
&& (maStartColor == rImpl_Gradient.maStartColor)
&& (maEndColor == rImpl_Gradient.maEndColor);
}
};
Gradient::Gradient() = default;
Gradient::Gradient( const Gradient& ) = default;
Gradient::Gradient( Gradient&& ) = default;
Gradient::Gradient( GradientStyle eStyle,
const Color& rStartColor, const Color& rEndColor )
{
mpImplGradient->meStyle = eStyle;
mpImplGradient->maStartColor = rStartColor;
mpImplGradient->maEndColor = rEndColor;
}
Gradient::~Gradient() = default;
GradientStyle Gradient::GetStyle() const
{
return mpImplGradient->meStyle;
}
void Gradient::SetStyle( GradientStyle eStyle )
{
mpImplGradient->meStyle = eStyle;
}
const Color& Gradient::GetStartColor() const
{
return mpImplGradient->maStartColor;
}
void Gradient::SetStartColor( const Color& rColor )
{
mpImplGradient->maStartColor = rColor;
}
const Color& Gradient::GetEndColor() const
{
return mpImplGradient->maEndColor;
}
void Gradient::SetEndColor( const Color& rColor )
{
mpImplGradient->maEndColor = rColor;
}
Degree10 Gradient::GetAngle() const
{
return mpImplGradient->mnAngle;
}
void Gradient::SetAngle( Degree10 nAngle )
{
mpImplGradient->mnAngle = nAngle;
}
sal_uInt16 Gradient::GetBorder() const
{
return mpImplGradient->mnBorder;
}
void Gradient::SetBorder( sal_uInt16 nBorder )
{
mpImplGradient->mnBorder = nBorder;
}
sal_uInt16 Gradient::GetOfsX() const
{
return mpImplGradient->mnOfsX;
}
void Gradient::SetOfsX( sal_uInt16 nOfsX )
{
mpImplGradient->mnOfsX = nOfsX;
}
sal_uInt16 Gradient::GetOfsY() const
{
return mpImplGradient->mnOfsY;
}
void Gradient::SetOfsY( sal_uInt16 nOfsY )
{
mpImplGradient->mnOfsY = nOfsY;
}
sal_uInt16 Gradient::GetStartIntensity() const
{
return mpImplGradient->mnIntensityStart;
}
void Gradient::SetStartIntensity( sal_uInt16 nIntens )
{
mpImplGradient->mnIntensityStart = nIntens;
}
sal_uInt16 Gradient::GetEndIntensity() const
{
return mpImplGradient->mnIntensityEnd;
}
void Gradient::SetEndIntensity( sal_uInt16 nIntens )
{
mpImplGradient->mnIntensityEnd = nIntens;
}
sal_uInt16 Gradient::GetSteps() const
{
return mpImplGradient->mnStepCount;
}
void Gradient::SetSteps( sal_uInt16 nSteps )
{
mpImplGradient->mnStepCount = nSteps;
}
void Gradient::GetBoundRect( const tools::Rectangle& rRect, tools::Rectangle& rBoundRect, Point& rCenter ) const
{
tools::Rectangle aRect( rRect );
Degree10 nAngle = GetAngle() % 3600_deg10;
if( GetStyle() == GradientStyle::Linear || GetStyle() == GradientStyle::Axial )
{
const double fAngle = toRadians(nAngle);
const double fWidth = aRect.GetWidth();
const double fHeight = aRect.GetHeight();
double fDX = fWidth * fabs( cos( fAngle ) ) +
fHeight * fabs( sin( fAngle ) );
double fDY = fHeight * fabs( cos( fAngle ) ) +
fWidth * fabs( sin( fAngle ) );
fDX = (fDX - fWidth) * 0.5 + 0.5;
fDY = (fDY - fHeight) * 0.5 + 0.5;
aRect.AdjustLeft( -static_cast<tools::Long>(fDX) );
aRect.AdjustRight(static_cast<tools::Long>(fDX) );
aRect.AdjustTop( -static_cast<tools::Long>(fDY) );
aRect.AdjustBottom(static_cast<tools::Long>(fDY) );
rBoundRect = aRect;
rCenter = rRect.Center();
}
else
{
if( GetStyle() == GradientStyle::Square || GetStyle() == GradientStyle::Rect )
{
const double fAngle = toRadians(nAngle);
const double fWidth = aRect.GetWidth();
const double fHeight = aRect.GetHeight();
double fDX = fWidth * fabs( cos( fAngle ) ) + fHeight * fabs( sin( fAngle ) );
double fDY = fHeight * fabs( cos( fAngle ) ) + fWidth * fabs( sin( fAngle ) );
fDX = ( fDX - fWidth ) * 0.5 + 0.5;
fDY = ( fDY - fHeight ) * 0.5 + 0.5;
aRect.AdjustLeft( -static_cast<tools::Long>(fDX) );
aRect.AdjustRight(static_cast<tools::Long>(fDX) );
aRect.AdjustTop( -static_cast<tools::Long>(fDY) );
aRect.AdjustBottom(static_cast<tools::Long>(fDY) );
}
Size aSize( aRect.GetSize() );
if( GetStyle() == GradientStyle::Radial )
{
// Calculation of radii for circle
aSize.setWidth( static_cast<tools::Long>(0.5 + sqrt(static_cast<double>(aSize.Width())*static_cast<double>(aSize.Width()) + static_cast<double>(aSize.Height())*static_cast<double>(aSize.Height()))) );
aSize.setHeight( aSize.Width() );
}
else if( GetStyle() == GradientStyle::Elliptical )
{
// Calculation of radii for ellipse
aSize.setWidth( static_cast<tools::Long>( 0.5 + static_cast<double>(aSize.Width()) * 1.4142 ) );
aSize.setHeight( static_cast<tools::Long>( 0.5 + static_cast<double>(aSize.Height()) * 1.4142 ) );
}
// Calculate new centers
tools::Long nZWidth = aRect.GetWidth() * static_cast<tools::Long>(GetOfsX()) / 100;
tools::Long nZHeight = aRect.GetHeight() * static_cast<tools::Long>(GetOfsY()) / 100;
tools::Long nBorderX = static_cast<tools::Long>(GetBorder()) * aSize.Width() / 100;
tools::Long nBorderY = static_cast<tools::Long>(GetBorder()) * aSize.Height() / 100;
rCenter = Point( aRect.Left() + nZWidth, aRect.Top() + nZHeight );
// Respect borders
aSize.AdjustWidth( -nBorderX );
aSize.AdjustHeight( -nBorderY );
// Recalculate output rectangle
aRect.SetLeft( rCenter.X() - ( aSize.Width() >> 1 ) );
aRect.SetTop( rCenter.Y() - ( aSize.Height() >> 1 ) );
aRect.SetSize( aSize );
rBoundRect = aRect;
}
}
void Gradient::MakeGrayscale()
{
Color aStartCol(GetStartColor());
Color aEndCol(GetEndColor());
sal_uInt8 cStartLum = aStartCol.GetLuminance();
sal_uInt8 cEndLum = aEndCol.GetLuminance();
aStartCol = Color(cStartLum, cStartLum, cStartLum);
aEndCol = Color(cEndLum, cEndLum, cEndLum);
SetStartColor(aStartCol);
SetEndColor(aEndCol);
}
Gradient& Gradient::operator=( const Gradient& ) = default;
Gradient& Gradient::operator=( Gradient&& ) = default;
bool Gradient::operator==( const Gradient& rGradient ) const
{
return mpImplGradient == rGradient.mpImplGradient;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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