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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 <sdr/contact/viewcontactofsdrpathobj.hxx>
#include <svtools/optionsdrawinglayer.hxx>
#include <svx/svdopath.hxx>
#include <svx/svdpage.hxx>
#include <svx/sdr/primitive2d/sdrattributecreator.hxx>
#include <basegfx/polygon/b2dpolypolygontools.hxx>
#include <basegfx/polygon/b2dpolygonclipper.hxx>
#include <sdr/primitive2d/sdrpathprimitive2d.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <vcl/canvastools.hxx>
namespace sdr::contact
{
ViewContactOfSdrPathObj::ViewContactOfSdrPathObj(SdrPathObj& rPathObj)
: ViewContactOfTextObj(rPathObj)
{
}
ViewContactOfSdrPathObj::~ViewContactOfSdrPathObj()
{
}
static sal_uInt32 ensureGeometry(basegfx::B2DPolyPolygon& rUnitPolyPolygon)
{
sal_uInt32 nPolyCount(rUnitPolyPolygon.count());
sal_uInt32 nPointCount(0);
for(auto const& rPolygon : rUnitPolyPolygon)
{
nPointCount += rPolygon.count();
}
if(!nPointCount)
{
OSL_FAIL("PolyPolygon object without geometry detected, this should not be created (!)");
basegfx::B2DPolygon aFallbackLine;
aFallbackLine.append(basegfx::B2DPoint(0.0, 0.0));
aFallbackLine.append(basegfx::B2DPoint(1000.0, 1000.0));
rUnitPolyPolygon = basegfx::B2DPolyPolygon(aFallbackLine);
nPolyCount = 1;
}
return nPolyCount;
}
drawinglayer::primitive2d::Primitive2DContainer ViewContactOfSdrPathObj::createViewIndependentPrimitive2DSequence() const
{
const SfxItemSet& rItemSet = GetPathObj().GetMergedItemSet();
const drawinglayer::attribute::SdrLineFillShadowTextAttribute aAttribute(
drawinglayer::primitive2d::createNewSdrLineFillShadowTextAttribute(
rItemSet,
GetPathObj().getText(0),
false));
basegfx::B2DPolyPolygon aUnitPolyPolygon(GetPathObj().GetPathPoly());
sal_uInt32 nPolyCount(ensureGeometry(aUnitPolyPolygon));
// prepare object transformation and unit polygon (direct model data)
basegfx::B2DHomMatrix aObjectMatrix;
basegfx::B2DPolyPolygon aUnitDefinitionPolyPolygon;
bool bIsLine(
!aUnitPolyPolygon.areControlPointsUsed()
&& 1 == nPolyCount
&& 2 == aUnitPolyPolygon.getB2DPolygon(0).count());
if(bIsLine)
{
//tdf#63955 if we have an extremely long line then clip it to a
//very generous range of -1 page width/height vs +1 page
//width/height to avoid oom and massive churn generating a huge
//polygon chain to cover the length in applyLineDashing if this
//line is dashed
const SdrPage* pPage(GetPathObj().getSdrPageFromSdrObject());
sal_Int32 nPageWidth = pPage ? pPage->GetWidth() : 0;
sal_Int32 nPageHeight = pPage ? pPage->GetHeight() : 0;
//But, see tdf#101187, only do this if our generous clip region
//would not over flow into a tiny clip region
if (nPageWidth < SAL_MAX_INT32/2 && nPageHeight < SAL_MAX_INT32/2)
{
//But, see tdf#97276, tdf#126184 and tdf#98366. Don't clip too much if the
//underlying page dimension is unknown or a paste document
//where the page sizes use the odd default of 10x10
const SvtOptionsDrawinglayer aDrawinglayerOpt;
const sal_Int32 nMaxPaperWidth = aDrawinglayerOpt.GetMaximumPaperWidth() * 1000;
const sal_Int32 nMaxPaperHeight = aDrawinglayerOpt.GetMaximumPaperHeight() * 1000;
nPageWidth = std::max<sal_Int32>(nPageWidth, nMaxPaperWidth);
nPageHeight = std::max<sal_Int32>(nPageHeight, nMaxPaperHeight);
basegfx::B2DRange aClipRange(-nPageWidth, -nPageHeight,
nPageWidth*2, nPageHeight*2);
aUnitPolyPolygon = basegfx::utils::clipPolyPolygonOnRange(aUnitPolyPolygon,
aClipRange, true, true);
nPolyCount = ensureGeometry(aUnitPolyPolygon);
// re-check that we have't been clipped out to oblivion
bIsLine =
!aUnitPolyPolygon.areControlPointsUsed()
&& 1 == nPolyCount
&& 2 == aUnitPolyPolygon.getB2DPolygon(0).count();
}
}
if(bIsLine)
{
// special handling for single line mode (2 points)
const basegfx::B2DPolygon aSubPolygon(aUnitPolyPolygon.getB2DPolygon(0));
const basegfx::B2DPoint aStart(aSubPolygon.getB2DPoint(0));
const basegfx::B2DPoint aEnd(aSubPolygon.getB2DPoint(1));
const basegfx::B2DVector aLine(aEnd - aStart);
// #i102548# create new unit polygon for line (horizontal)
basegfx::B2DPolygon aNewPolygon;
aNewPolygon.append(basegfx::B2DPoint(0.0, 0.0));
aNewPolygon.append(basegfx::B2DPoint(1.0, 0.0));
aUnitPolyPolygon.setB2DPolygon(0, aNewPolygon);
// #i102548# fill objectMatrix with rotation and offset (no shear for lines)
aObjectMatrix = basegfx::utils::createScaleShearXRotateTranslateB2DHomMatrix(
aLine.getLength(), 1.0,
0.0,
atan2(aLine.getY(), aLine.getX()),
aStart.getX(), aStart.getY());
}
else
{
// #i102548# create unscaled, unsheared, unrotated and untranslated polygon
// (unit polygon) by creating the object matrix and back-transforming the polygon
const basegfx::B2DRange aObjectRange(basegfx::utils::getRange(aUnitPolyPolygon));
const GeoStat& rGeoStat(GetPathObj().GetGeoStat());
const double fWidth(aObjectRange.getWidth());
const double fHeight(aObjectRange.getHeight());
const double fScaleX(basegfx::fTools::equalZero(fWidth) ? 1.0 : fWidth);
const double fScaleY(basegfx::fTools::equalZero(fHeight) ? 1.0 : fHeight);
aObjectMatrix = basegfx::utils::createScaleShearXRotateTranslateB2DHomMatrix(
fScaleX, fScaleY,
rGeoStat.nShearAngle ? tan((36000 - rGeoStat.nShearAngle) * F_PI18000) : 0.0,
rGeoStat.nRotationAngle ? (36000 - rGeoStat.nRotationAngle) * F_PI18000 : 0.0,
aObjectRange.getMinX(), aObjectRange.getMinY());
// create unit polygon from object's absolute path
basegfx::B2DHomMatrix aInverse(aObjectMatrix);
aInverse.invert();
aUnitPolyPolygon.transform(aInverse);
// OperationSmiley: Check if a FillGeometryDefiningShape is set
const SdrObject* pFillGeometryDefiningShape(GetPathObj().getFillGeometryDefiningShape());
if(nullptr != pFillGeometryDefiningShape)
{
// If yes, get it's BoundRange and use as defining Geometry for the FillStyle.
// If no, aUnitDefinitionPolyPolygon will just be empty and thus be interpreted
// as unused.
// Using SnapRect will make the FillDefinition to always be extended e.g.
// for rotated/sheared objects.
const tools::Rectangle& rSnapRect(pFillGeometryDefiningShape->GetSnapRect());
aUnitDefinitionPolyPolygon.append(
basegfx::utils::createPolygonFromRect(
vcl::unotools::b2DRectangleFromRectangle(rSnapRect)));
// use same coordinate system as the shape geometry -> this
// makes it relative to shape's unit geometry and thus freely
// transformable with the shape
aUnitDefinitionPolyPolygon.transform(aInverse);
}
}
// create primitive. Always create primitives to allow the decomposition of
// SdrPathPrimitive2D to create needed invisible elements for HitTest and/or BoundRect
const drawinglayer::primitive2d::Primitive2DReference xReference(
new drawinglayer::primitive2d::SdrPathPrimitive2D(
aObjectMatrix,
aAttribute,
aUnitPolyPolygon,
aUnitDefinitionPolyPolygon));
return drawinglayer::primitive2d::Primitive2DContainer { xReference };
}
} // end of namespace
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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