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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 <drawinglayer/geometry/viewinformation2d.hxx>
#include <drawinglayer/primitive2d/borderlineprimitive2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolygonclipper.hxx>
#include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#include <svtools/borderhelper.hxx>
#include <editeng/borderline.hxx>
#include <android/compatibility.hxx>
#include <algorithm>
#include <cmath>
#include <numeric>
namespace drawinglayer
{
namespace primitive2d
{
// helper to add a centered, maybe stroked line primitive to rContainer
void addPolygonStrokePrimitive2D(
Primitive2DContainer& rContainer,
const basegfx::B2DPoint& rStart,
const basegfx::B2DPoint& rEnd,
const basegfx::BColor& rColor,
double fWidth,
SvxBorderLineStyle aStyle,
double fPatternScale)
{
basegfx::B2DPolygon aPolygon;
aPolygon.append(rStart);
aPolygon.append(rEnd);
const attribute::LineAttribute aLineAttribute(rColor, fWidth);
static double fPatScFact(10.0); // 10.0 multiply, see old code
const std::vector<double> aDashing(svtools::GetLineDashing(aStyle, fPatternScale * fPatScFact));
if (aDashing.empty())
{
rContainer.push_back(
new PolygonStrokePrimitive2D(
aPolygon,
aLineAttribute));
}
else
{
const attribute::StrokeAttribute aStrokeAttribute(aDashing);
rContainer.push_back(
new PolygonStrokePrimitive2D(
aPolygon,
aLineAttribute,
aStrokeAttribute));
}
}
void BorderLinePrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& /*rViewInformation*/) const
{
if (!getStart().equal(getEnd()) && (isInsideUsed() || isOutsideUsed()))
{
// get data and vectors
basegfx::B2DVector aVector(getEnd() - getStart());
aVector.normalize();
const basegfx::B2DVector aPerpendicular(basegfx::getPerpendicular(aVector));
if (isOutsideUsed() && isInsideUsed())
{
// double line with gap. Use mfDiscreteDistance (see get2DDecomposition) as distance.
// That value is prepared to be at least one pixel (discrete unit) so that the
// decomposition is view-dependent in this cases
if (isInsideUsed())
{
// inside line (left). Create stroke primitive centered on line width
const double fDeltaY((mfDiscreteDistance + getLeftWidth()) * 0.5);
const basegfx::B2DVector aDeltaY(aPerpendicular * fDeltaY);
const basegfx::B2DPoint aStart(getStart() - (aVector * getExtendLeftStart()) - aDeltaY);
const basegfx::B2DPoint aEnd(getEnd() + (aVector * getExtendLeftEnd()) - aDeltaY);
addPolygonStrokePrimitive2D(
rContainer,
aStart,
aEnd,
getRGBColorLeft(),
getLeftWidth(),
getStyle(),
getPatternScale());
}
if (hasGapColor() && isDistanceUsed())
{
// gap (if visible, found no practical usage).
// Create stroke primitive on vector with given color
addPolygonStrokePrimitive2D(
rContainer,
getStart(),
getEnd(),
getRGBColorGap(),
mfDiscreteDistance,
getStyle(),
getPatternScale());
}
if (isOutsideUsed())
{
// outside line (right). Create stroke primitive centered on line width
const double fDeltaY((mfDiscreteDistance + getRightWidth()) * 0.5);
const basegfx::B2DVector aDeltaY(aPerpendicular * fDeltaY);
const basegfx::B2DPoint aStart(getStart() - (aVector * getExtendRightStart()) + aDeltaY);
const basegfx::B2DPoint aEnd(getEnd() + (aVector * getExtendRightEnd()) + aDeltaY);
addPolygonStrokePrimitive2D(
rContainer,
aStart,
aEnd,
getRGBColorRight(),
getRightWidth(),
getStyle(),
getPatternScale());
}
}
else if(isInsideUsed())
{
// single line, only inside values used, no vertical offsets
addPolygonStrokePrimitive2D(
rContainer,
getStart(),
getEnd(),
getRGBColorLeft(),
getLeftWidth(),
getStyle(),
getPatternScale());
}
}
}
bool BorderLinePrimitive2D::isHorizontalOrVertical(const geometry::ViewInformation2D& rViewInformation) const
{
if (!getStart().equal(getEnd()))
{
const basegfx::B2DHomMatrix& rOTVT = rViewInformation.getObjectToViewTransformation();
const basegfx::B2DVector aVector(rOTVT * getEnd() - rOTVT * getStart());
return basegfx::fTools::equalZero(aVector.getX()) || basegfx::fTools::equalZero(aVector.getY());
}
return false;
}
BorderLinePrimitive2D::BorderLinePrimitive2D(
const basegfx::B2DPoint& rStart,
const basegfx::B2DPoint& rEnd,
double fLeftWidth,
double fDistance,
double fRightWidth,
double fExtendLeftStart,
double fExtendLeftEnd,
double fExtendRightStart,
double fExtendRightEnd,
const basegfx::BColor& rRGBColorRight,
const basegfx::BColor& rRGBColorLeft,
const basegfx::BColor& rRGBColorGap,
bool bHasGapColor,
SvxBorderLineStyle nStyle,
double fPatternScale)
: BufferedDecompositionPrimitive2D(),
maStart(rStart),
maEnd(rEnd),
mfLeftWidth(fLeftWidth),
mfDistance(fDistance),
mfRightWidth(fRightWidth),
mfExtendLeftStart(fExtendLeftStart),
mfExtendLeftEnd(fExtendLeftEnd),
mfExtendRightStart(fExtendRightStart),
mfExtendRightEnd(fExtendRightEnd),
maRGBColorRight(rRGBColorRight),
maRGBColorLeft(rRGBColorLeft),
maRGBColorGap(rRGBColorGap),
mbHasGapColor(bHasGapColor),
mnStyle(nStyle),
mfPatternScale(fPatternScale),
mfDiscreteDistance(0.0)
{
}
bool BorderLinePrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
{
if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
{
const BorderLinePrimitive2D& rCompare = static_cast<const BorderLinePrimitive2D&>(rPrimitive);
return (getStart() == rCompare.getStart()
&& getEnd() == rCompare.getEnd()
&& getLeftWidth() == rCompare.getLeftWidth()
&& getDistance() == rCompare.getDistance()
&& getRightWidth() == rCompare.getRightWidth()
&& getExtendLeftStart() == rCompare.getExtendLeftStart()
&& getExtendLeftEnd() == rCompare.getExtendLeftEnd()
&& getExtendRightStart() == rCompare.getExtendRightStart()
&& getExtendRightEnd() == rCompare.getExtendRightEnd()
&& getRGBColorRight() == rCompare.getRGBColorRight()
&& getRGBColorLeft() == rCompare.getRGBColorLeft()
&& getRGBColorGap() == rCompare.getRGBColorGap()
&& hasGapColor() == rCompare.hasGapColor()
&& getStyle() == rCompare.getStyle()
&& getPatternScale() == rCompare.getPatternScale());
}
return false;
}
void BorderLinePrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const
{
::osl::MutexGuard aGuard(m_aMutex);
if (!getStart().equal(getEnd()) && isOutsideUsed() && isInsideUsed())
{
// Double line with gap. In this case, we want to be view-dependent.
// Get the current DiscreteUnit, look at X and Y and use the maximum
const basegfx::B2DVector aDiscreteVector(rViewInformation.getInverseObjectToViewTransformation() * basegfx::B2DVector(1.0, 1.0));
const double fDiscreteUnit(std::min(fabs(aDiscreteVector.getX()), fabs(aDiscreteVector.getY())));
// When discrete unit is bigger than distance (distance is less than one pixel),
// force distance to one pixel. Or expressed different, do not let the distance
// get smaller than one pixel. This is done for screen rendering and compatibility.
// This can also be done using DiscreteMetricDependentPrimitive2D as base class
// for this class, but specialization is better here for later buffering (only
// do this when 'double line with gap')
const double fNewDiscreteDistance(std::max(fDiscreteUnit, getDistance()));
if (!rtl::math::approxEqual(fNewDiscreteDistance, mfDiscreteDistance))
{
if (!getBuffered2DDecomposition().empty())
{
// conditions of last local decomposition have changed, delete
const_cast< BorderLinePrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DContainer());
}
// remember value for usage in create2DDecomposition
const_cast< BorderLinePrimitive2D* >(this)->mfDiscreteDistance = fNewDiscreteDistance;
}
}
// call base implementation
BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation);
}
// provide unique ID
ImplPrimitive2DIDBlock(BorderLinePrimitive2D, PRIMITIVE2D_ID_BORDERLINEPRIMITIVE2D)
} // end of namespace primitive2d
} // end of namespace drawinglayer
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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