office-gobmx/vcl/source/outdev/line.cxx
Luboš Luňák ff8b9f6fca use dashing info from struct LineInfo in EPS writer (tdf#146804)
It had a random(?) hardcoded '2' as the dashing info. While at it,
I've also made few other places use the common implementation
of creating the dotdash array instead of doing it manually.

Change-Id: Id349ca138c98d08eef47dc0bfe6d162e03fc4a9f
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/131932
Tested-by: Jenkins
Reviewed-by: Luboš Luňák <l.lunak@collabora.com>
2022-03-22 15:17:08 +01:00

358 lines
11 KiB
C++

/* -*- 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 <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/polygon/b2dpolypolygontools.hxx>
#include <basegfx/polygon/b2dlinegeometry.hxx>
#include <tools/debug.hxx>
#include <vcl/lineinfo.hxx>
#include <vcl/metaact.hxx>
#include <vcl/virdev.hxx>
#include <drawmode.hxx>
#include <salgdi.hxx>
#include <cassert>
#include <numeric>
void OutputDevice::SetLineColor()
{
if ( mpMetaFile )
mpMetaFile->AddAction( new MetaLineColorAction( Color(), false ) );
if ( mbLineColor )
{
mbInitLineColor = true;
mbLineColor = false;
maLineColor = COL_TRANSPARENT;
}
if( mpAlphaVDev )
mpAlphaVDev->SetLineColor();
}
void OutputDevice::SetLineColor( const Color& rColor )
{
Color aColor = vcl::drawmode::GetLineColor(rColor, GetDrawMode(), GetSettings().GetStyleSettings());
if( mpMetaFile )
mpMetaFile->AddAction( new MetaLineColorAction( aColor, true ) );
if( aColor.IsTransparent() )
{
if ( mbLineColor )
{
mbInitLineColor = true;
mbLineColor = false;
maLineColor = COL_TRANSPARENT;
}
}
else
{
if( maLineColor != aColor )
{
mbInitLineColor = true;
mbLineColor = true;
maLineColor = aColor;
}
}
if( mpAlphaVDev )
mpAlphaVDev->SetLineColor( COL_BLACK );
}
void OutputDevice::InitLineColor()
{
DBG_TESTSOLARMUTEX();
if( mbLineColor )
{
if( RasterOp::N0 == meRasterOp )
mpGraphics->SetROPLineColor( SalROPColor::N0 );
else if( RasterOp::N1 == meRasterOp )
mpGraphics->SetROPLineColor( SalROPColor::N1 );
else if( RasterOp::Invert == meRasterOp )
mpGraphics->SetROPLineColor( SalROPColor::Invert );
else
mpGraphics->SetLineColor( maLineColor );
}
else
{
mpGraphics->SetLineColor();
}
mbInitLineColor = false;
}
void OutputDevice::DrawLine( const Point& rStartPt, const Point& rEndPt,
const LineInfo& rLineInfo )
{
assert(!is_double_buffered_window());
if ( rLineInfo.IsDefault() )
{
DrawLine( rStartPt, rEndPt );
return;
}
if ( mpMetaFile )
mpMetaFile->AddAction( new MetaLineAction( rStartPt, rEndPt, rLineInfo ) );
if ( !IsDeviceOutputNecessary() || !mbLineColor || ( LineStyle::NONE == rLineInfo.GetStyle() ) || ImplIsRecordLayout() )
return;
if( !mpGraphics && !AcquireGraphics() )
return;
assert(mpGraphics);
if ( mbInitClipRegion )
InitClipRegion();
if ( mbOutputClipped )
return;
const Point aStartPt( ImplLogicToDevicePixel( rStartPt ) );
const Point aEndPt( ImplLogicToDevicePixel( rEndPt ) );
const LineInfo aInfo( ImplLogicToDevicePixel( rLineInfo ) );
const bool bDashUsed(LineStyle::Dash == aInfo.GetStyle());
const bool bLineWidthUsed(aInfo.GetWidth() > 1);
if ( mbInitLineColor )
InitLineColor();
if(bDashUsed || bLineWidthUsed)
{
basegfx::B2DPolygon aLinePolygon;
aLinePolygon.append(basegfx::B2DPoint(aStartPt.X(), aStartPt.Y()));
aLinePolygon.append(basegfx::B2DPoint(aEndPt.X(), aEndPt.Y()));
drawLine( basegfx::B2DPolyPolygon(aLinePolygon), aInfo );
}
else
{
mpGraphics->DrawLine( aStartPt.X(), aStartPt.Y(), aEndPt.X(), aEndPt.Y(), *this );
}
if( mpAlphaVDev )
mpAlphaVDev->DrawLine( rStartPt, rEndPt, rLineInfo );
}
void OutputDevice::DrawLine( const Point& rStartPt, const Point& rEndPt )
{
assert(!is_double_buffered_window());
if ( mpMetaFile )
mpMetaFile->AddAction( new MetaLineAction( rStartPt, rEndPt ) );
if ( !IsDeviceOutputNecessary() || !mbLineColor || ImplIsRecordLayout() )
return;
if ( !mpGraphics && !AcquireGraphics() )
return;
assert(mpGraphics);
if ( mbInitClipRegion )
InitClipRegion();
if ( mbOutputClipped )
return;
if ( mbInitLineColor )
InitLineColor();
bool bDrawn = false;
// #i101598# support AA and snap for lines, too
if( mpGraphics->supportsOperation(OutDevSupportType::B2DDraw)
&& RasterOp::OverPaint == GetRasterOp()
&& IsLineColor())
{
// at least transform with double precision to device coordinates; this will
// avoid pixel snap of single, appended lines
const basegfx::B2DHomMatrix aTransform(ImplGetDeviceTransformation());
basegfx::B2DPolygon aB2DPolyLine;
aB2DPolyLine.append(basegfx::B2DPoint(rStartPt.X(), rStartPt.Y()));
aB2DPolyLine.append(basegfx::B2DPoint(rEndPt.X(), rEndPt.Y()));
aB2DPolyLine.transform( aTransform );
const bool bPixelSnapHairline(mnAntialiasing & AntialiasingFlags::PixelSnapHairline);
bDrawn = mpGraphics->DrawPolyLine(
basegfx::B2DHomMatrix(),
aB2DPolyLine,
0.0,
0.0, // tdf#124848 hairline
nullptr, // MM01
basegfx::B2DLineJoin::NONE,
css::drawing::LineCap_BUTT,
basegfx::deg2rad(15.0), // not used with B2DLineJoin::NONE, but the correct default
bPixelSnapHairline,
*this);
}
if(!bDrawn)
{
const Point aStartPt(ImplLogicToDevicePixel(rStartPt));
const Point aEndPt(ImplLogicToDevicePixel(rEndPt));
mpGraphics->DrawLine( aStartPt.X(), aStartPt.Y(), aEndPt.X(), aEndPt.Y(), *this );
}
if( mpAlphaVDev )
mpAlphaVDev->DrawLine( rStartPt, rEndPt );
}
void OutputDevice::drawLine( basegfx::B2DPolyPolygon aLinePolyPolygon, const LineInfo& rInfo )
{
const bool bTryB2d(mpGraphics->supportsOperation(OutDevSupportType::B2DDraw)
&& RasterOp::OverPaint == GetRasterOp()
&& IsLineColor());
basegfx::B2DPolyPolygon aFillPolyPolygon;
const bool bDashUsed(LineStyle::Dash == rInfo.GetStyle());
const bool bLineWidthUsed(rInfo.GetWidth() > 1);
if(bDashUsed && aLinePolyPolygon.count())
{
::std::vector< double > fDotDashArray = rInfo.GetDotDashArray();
const double fAccumulated(::std::accumulate(fDotDashArray.begin(), fDotDashArray.end(), 0.0));
if(fAccumulated > 0.0)
{
basegfx::B2DPolyPolygon aResult;
for(auto const& rPolygon : std::as_const(aLinePolyPolygon))
{
basegfx::B2DPolyPolygon aLineTarget;
basegfx::utils::applyLineDashing(
rPolygon,
fDotDashArray,
&aLineTarget);
aResult.append(aLineTarget);
}
aLinePolyPolygon = aResult;
}
}
if(bLineWidthUsed && aLinePolyPolygon.count())
{
const double fHalfLineWidth((rInfo.GetWidth() * 0.5) + 0.5);
if(aLinePolyPolygon.areControlPointsUsed())
{
// #i110768# When area geometry has to be created, do not
// use the fallback bezier decomposition inside createAreaGeometry,
// but one that is at least as good as ImplSubdivideBezier was.
// There, Polygon::AdaptiveSubdivide was used with default parameter
// 1.0 as quality index.
aLinePolyPolygon = basegfx::utils::adaptiveSubdivideByDistance(aLinePolyPolygon, 1.0);
}
for(auto const& rPolygon : std::as_const(aLinePolyPolygon))
{
aFillPolyPolygon.append(basegfx::utils::createAreaGeometry(
rPolygon,
fHalfLineWidth,
rInfo.GetLineJoin(),
rInfo.GetLineCap()));
}
aLinePolyPolygon.clear();
}
GDIMetaFile* pOldMetaFile = mpMetaFile;
mpMetaFile = nullptr;
if(aLinePolyPolygon.count())
{
for(auto const& rB2DPolygon : std::as_const(aLinePolyPolygon))
{
const bool bPixelSnapHairline(mnAntialiasing & AntialiasingFlags::PixelSnapHairline);
bool bDone(false);
if(bTryB2d)
{
bDone = mpGraphics->DrawPolyLine(
basegfx::B2DHomMatrix(),
rB2DPolygon,
0.0,
0.0, // tdf#124848 hairline
nullptr, // MM01
basegfx::B2DLineJoin::NONE,
css::drawing::LineCap_BUTT,
basegfx::deg2rad(15.0), // not used with B2DLineJoin::NONE, but the correct default
bPixelSnapHairline,
*this);
}
if(!bDone)
{
tools::Polygon aPolygon(rB2DPolygon);
mpGraphics->DrawPolyLine(
aPolygon.GetSize(),
aPolygon.GetPointAry(),
*this);
}
}
}
if(aFillPolyPolygon.count())
{
const Color aOldLineColor( maLineColor );
const Color aOldFillColor( maFillColor );
SetLineColor();
InitLineColor();
SetFillColor( aOldLineColor );
InitFillColor();
bool bDone(false);
if(bTryB2d)
{
bDone = mpGraphics->DrawPolyPolygon(
basegfx::B2DHomMatrix(),
aFillPolyPolygon,
0.0,
*this);
}
if(!bDone)
{
for(auto const& rB2DPolygon : std::as_const(aFillPolyPolygon))
{
tools::Polygon aPolygon(rB2DPolygon);
// need to subdivide, mpGraphics->DrawPolygon ignores curves
aPolygon.AdaptiveSubdivide(aPolygon);
mpGraphics->DrawPolygon(aPolygon.GetSize(), aPolygon.GetConstPointAry(), *this);
}
}
SetFillColor( aOldFillColor );
SetLineColor( aOldLineColor );
}
mpMetaFile = pOldMetaFile;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */