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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#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 <numeric>
#include <algorithm>
//////////////////////////////////////////////////////////////////////////////
namespace drawinglayer
{
// fdo#49438: heuristic pseudo hack
static bool lcl_UseHairline(double const fW,
basegfx::B2DPoint const& rStart, basegfx::B2DPoint const& rEnd,
geometry::ViewInformation2D const& rViewInformation)
{
basegfx::B2DTuple scale;
basegfx::B2DTuple translation;
double fRotation;
double fShear;
rViewInformation.getObjectToViewTransformation().decompose(
scale, translation, fRotation, fShear);
double const fScale(
(rEnd.getX() - rStart.getX() > rEnd.getY() - rStart.getY())
? scale.getY() : scale.getX());
return (fW * fScale < 0.51);
}
static double lcl_GetCorrectedWidth(double const fW,
basegfx::B2DPoint const& rStart, basegfx::B2DPoint const& rEnd,
geometry::ViewInformation2D const& rViewInformation)
{
return (lcl_UseHairline(fW, rStart, rEnd, rViewInformation)) ? 0.0 : fW;
}
namespace primitive2d
{
double BorderLinePrimitive2D::getWidth(
geometry::ViewInformation2D const& rViewInformation) const
{
return lcl_GetCorrectedWidth(mfLeftWidth, getStart(), getEnd(),
rViewInformation)
+ lcl_GetCorrectedWidth(mfDistance, getStart(), getEnd(),
rViewInformation)
+ lcl_GetCorrectedWidth(mfRightWidth, getStart(), getEnd(),
rViewInformation);
}
basegfx::B2DPolyPolygon BorderLinePrimitive2D::getClipPolygon(
geometry::ViewInformation2D const& rViewInformation) const
{
basegfx::B2DPolygon clipPolygon;
// Get the vectors
basegfx::B2DVector aVector( getEnd() - getStart() );
aVector.normalize();
const basegfx::B2DVector aPerpendicular(basegfx::getPerpendicular(aVector));
// Get the points
const basegfx::B2DVector aLeftOff(aPerpendicular * (-0.5 * (getWidth(rViewInformation))));
const basegfx::B2DVector aRightOff(aPerpendicular * (0.5 * (getWidth(rViewInformation))));
const basegfx::B2DVector aSLVector( aLeftOff - ( getExtendLeftStart() * aVector ) );
clipPolygon.append( basegfx::B2DPoint( getStart() + aSLVector * 2.0 ) );
clipPolygon.append( getStart( ) );
const basegfx::B2DVector aSRVector( aRightOff - ( getExtendRightStart() * aVector ) );
clipPolygon.append( basegfx::B2DPoint( getStart() + aSRVector * 2.0 ) );
const basegfx::B2DVector aERVector( aRightOff + ( getExtendRightEnd() * aVector ) );
clipPolygon.append( basegfx::B2DPoint( getEnd() + aERVector * 2.0 ) );
clipPolygon.append( getEnd( ) );
const basegfx::B2DVector aELVector( aLeftOff + ( getExtendLeftEnd() * aVector ) );
clipPolygon.append( basegfx::B2DPoint( getEnd() + aELVector * 2.0 ) );
clipPolygon.setClosed( true );
return basegfx::B2DPolyPolygon( clipPolygon );
}
Primitive2DSequence BorderLinePrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
{
Primitive2DSequence xRetval;
if(!getStart().equal(getEnd()) && ( isInsideUsed() || isOutsideUsed() ) )
{
// get data and vectors
const double fWidth(getWidth(rViewInformation));
basegfx::B2DVector aVector(getEnd() - getStart());
aVector.normalize();
const basegfx::B2DVector aPerpendicular(basegfx::getPerpendicular(aVector));
const basegfx::B2DPolyPolygon& aClipRegion =
getClipPolygon(rViewInformation);
if(isOutsideUsed() && isInsideUsed())
{
const double fExt = getWidth(rViewInformation); // Extend a lot: it'll be clipped after
// both used, double line definition. Create left and right offset
xRetval.realloc(2);
sal_uInt32 nInsert(0);
basegfx::B2DPolygon aGap;
{
// create geometry for left
const basegfx::B2DVector aLeftOff(aPerpendicular * (0.5 * (lcl_GetCorrectedWidth(mfLeftWidth, getStart(), getEnd(), rViewInformation) - fWidth + 1)));
const basegfx::B2DPoint aTmpStart(getStart() + aLeftOff - ( fExt * aVector));
const basegfx::B2DPoint aTmpEnd(getEnd() + aLeftOff + ( fExt * aVector));
basegfx::B2DPolygon aLeft;
if (lcl_UseHairline(mfLeftWidth, getStart(), getEnd(),
rViewInformation))
{
// create hairline primitive
aLeft.append(aTmpStart);
aLeft.append(aTmpEnd);
basegfx::B2DPolyPolygon const aClipped =
basegfx::tools::clipPolygonOnPolyPolygon(
aLeft, aClipRegion, true, true);
xRetval[nInsert++] =
new PolyPolygonHairlinePrimitive2D(
aClipped,
getRGBColorLeft());
aGap.append( getStart() - getExtendLeftStart() * aVector );
aGap.append( getEnd() + getExtendLeftEnd() * aVector );
}
else
{
// create filled polygon primitive. Already tried to create thick lines
// with the correct LineWidth, but this leads to problems when no AA
// is available and fat line special case reductions between 0.5 < x < 2.5 line widths
// are executed due to the FilledPolygon-do-not-paint-their-bottom-and-right-lines.
const basegfx::B2DVector aLineWidthOffset((lcl_GetCorrectedWidth(mfLeftWidth, getStart(), getEnd(), rViewInformation) * 0.5) * aPerpendicular);
aLeft.append(aTmpStart + aLineWidthOffset);
aLeft.append(aTmpEnd + aLineWidthOffset);
aLeft.append(aTmpEnd - aLineWidthOffset);
aLeft.append(aTmpStart - aLineWidthOffset);
aLeft.setClosed(true);
basegfx::B2DPolyPolygon aClipped = basegfx::tools::clipPolygonOnPolyPolygon(
aLeft, aClipRegion, true, false );
aGap.append( aTmpStart + aLineWidthOffset );
aGap.append( aTmpEnd + aLineWidthOffset );
xRetval[nInsert++] = Primitive2DReference(new PolyPolygonColorPrimitive2D(
aClipped, getRGBColorLeft()));
}
}
{
// create geometry for right
const basegfx::B2DVector aRightOff(aPerpendicular * (0.5 * (fWidth - lcl_GetCorrectedWidth(mfRightWidth, getStart(), getEnd(), rViewInformation) + 1)));
const basegfx::B2DPoint aTmpStart(getStart() + aRightOff - ( fExt * aVector));
const basegfx::B2DPoint aTmpEnd(getEnd() + aRightOff + ( fExt * aVector));
basegfx::B2DPolygon aRight;
if (lcl_UseHairline(mfRightWidth, getStart(), getEnd(),
rViewInformation))
{
// create hairline primitive
aRight.append(aTmpStart);
aRight.append(aTmpEnd);
basegfx::B2DPolyPolygon const aClipped =
basegfx::tools::clipPolygonOnPolyPolygon(
aRight, aClipRegion, true, true);
xRetval[nInsert++] =
new PolyPolygonHairlinePrimitive2D(
aClipped,
getRGBColorRight());
aGap.append( getStart() - getExtendRightStart() * aVector );
aGap.append( getEnd() + getExtendRightEnd() * aVector );
}
else
{
// create filled polygon primitive
const basegfx::B2DVector aLineWidthOffset((lcl_GetCorrectedWidth(mfRightWidth, getStart(), getEnd(), rViewInformation) * 0.5) * aPerpendicular);
aRight.append(aTmpStart + aLineWidthOffset);
aRight.append(aTmpEnd + aLineWidthOffset);
aRight.append(aTmpEnd - aLineWidthOffset);
aRight.append(aTmpStart - aLineWidthOffset);
aRight.setClosed(true);
basegfx::B2DPolyPolygon aClipped = basegfx::tools::clipPolygonOnPolyPolygon(
aRight, aClipRegion, true, false );
xRetval[nInsert++] = Primitive2DReference(new PolyPolygonColorPrimitive2D(
aClipped, getRGBColorRight()));
aGap.append( aTmpEnd - aLineWidthOffset );
aGap.append( aTmpStart - aLineWidthOffset );
}
}
if (hasGapColor() && aGap.count() == 4)
{
xRetval.realloc( xRetval.getLength() + 1 );
// create geometry for filled gap
aGap.setClosed( true );
basegfx::B2DPolyPolygon aClipped = basegfx::tools::clipPolygonOnPolyPolygon(
aGap, aClipRegion, true, false );
xRetval[nInsert++] = Primitive2DReference( new PolyPolygonColorPrimitive2D(
aClipped, getRGBColorGap() ) );
}
}
else
{
// single line, create geometry
basegfx::B2DPolygon aPolygon;
const double fExt = getWidth(rViewInformation); // Extend a lot: it'll be clipped after
const basegfx::B2DPoint aTmpStart(getStart() - (fExt * aVector));
const basegfx::B2DPoint aTmpEnd(getEnd() + (fExt * aVector));
xRetval.realloc(1);
// Get which is the line to show
bool bIsSolidline = isSolidLine();
double nWidth = getLeftWidth();
basegfx::BColor aColor = getRGBColorLeft();
if ( basegfx::fTools::equal( 0.0, mfLeftWidth ) )
{
nWidth = getRightWidth();
aColor = getRGBColorRight();
}
bool const bIsHairline = lcl_UseHairline(
nWidth, getStart(), getEnd(), rViewInformation);
nWidth = lcl_GetCorrectedWidth(nWidth,
getStart(), getEnd(), rViewInformation);
if(bIsHairline && bIsSolidline)
{
// create hairline primitive
aPolygon.append( getStart() );
aPolygon.append( getEnd() );
xRetval[0] = Primitive2DReference(new PolygonHairlinePrimitive2D(
aPolygon,
aColor));
}
else
{
// create filled polygon primitive
const basegfx::B2DVector aLineWidthOffset(((nWidth + 1) * 0.5) * aPerpendicular);
basegfx::B2DVector aScale( rViewInformation.getInverseObjectToViewTransformation() * aVector );
aPolygon.append( aTmpStart );
aPolygon.append( aTmpEnd );
basegfx::B2DPolyPolygon aDashed = svtools::ApplyLineDashing(
aPolygon, getStyle(), MAP_PIXEL, aScale.getLength() );
for (sal_uInt32 i = 0; i < aDashed.count(); i++ )
{
basegfx::B2DPolygon aDash = aDashed.getB2DPolygon( i );
basegfx::B2DPoint aDashStart = aDash.getB2DPoint( 0 );
basegfx::B2DPoint aDashEnd = aDash.getB2DPoint( aDash.count() - 1 );
basegfx::B2DPolygon aDashPolygon;
aDashPolygon.append( aDashStart + aLineWidthOffset );
aDashPolygon.append( aDashEnd + aLineWidthOffset );
aDashPolygon.append( aDashEnd - aLineWidthOffset );
aDashPolygon.append( aDashStart - aLineWidthOffset );
aDashPolygon.setClosed( true );
basegfx::B2DPolyPolygon aClipped = basegfx::tools::clipPolygonOnPolyPolygon(
aDashPolygon, aClipRegion, true, false );
if ( aClipped.count() )
aDashed.setB2DPolygon( i, aClipped.getB2DPolygon( 0 ) );
}
xRetval[0] = Primitive2DReference(new PolyPolygonColorPrimitive2D(
basegfx::B2DPolyPolygon( aDashed ), aColor));
}
}
}
return xRetval;
}
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,
const short nStyle)
: 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)
{
}
bool BorderLinePrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
{
if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
{
const BorderLinePrimitive2D& rCompare = (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());
}
return false;
}
// provide unique ID
ImplPrimitrive2DIDBlock(BorderLinePrimitive2D, PRIMITIVE2D_ID_BORDERLINEPRIMITIVE2D)
} // end of namespace primitive2d
} // end of namespace drawinglayer
//////////////////////////////////////////////////////////////////////////////
// eof
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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