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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 "fumorph.hxx"
#include <svx/xfillit.hxx>
#include <svx/xlineit.hxx>
#include <vcl/msgbox.hxx>
#include <svx/svdpool.hxx>
#include <tools/poly.hxx>
#include <svx/svdopath.hxx>
#include <svx/svdogrp.hxx>
#include <editeng/eeitem.hxx>
#include "View.hxx"
#include "ViewShell.hxx"
#include "Window.hxx"
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/polygon/b2dpolypolygontools.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include "strings.hrc"
#include "sdresid.hxx"
#include "sdabstdlg.hxx"
#include <svx/svditer.hxx>
#include <basegfx/color/bcolor.hxx>
#include <com/sun/star/drawing/LineStyle.hpp>
#include <memory>
using namespace com::sun::star;
namespace sd {
#define ITEMVALUE( ItemSet, Id, Cast ) ( static_cast<const Cast&>( (ItemSet).Get( (Id) ) ).GetValue() )
FuMorph::FuMorph (
ViewShell* pViewSh,
::sd::Window* pWin,
::sd::View* pView,
SdDrawDocument* pDoc,
SfxRequest& rReq )
: FuPoor(pViewSh, pWin, pView, pDoc, rReq)
{
}
rtl::Reference<FuPoor> FuMorph::Create(
ViewShell* pViewSh,
::sd::Window* pWin,
::sd::View* pView,
SdDrawDocument* pDoc,
SfxRequest& rReq
)
{
rtl::Reference<FuPoor> xFunc( new FuMorph( pViewSh, pWin, pView, pDoc, rReq ) );
xFunc->DoExecute(rReq);
return xFunc;
}
void FuMorph::DoExecute( SfxRequest& )
{
const SdrMarkList& rMarkList = mpView->GetMarkedObjectList();
if(rMarkList.GetMarkCount() == 2)
{
// create clones
SdrObject* pObj1 = rMarkList.GetMark(0)->GetMarkedSdrObj();
SdrObject* pObj2 = rMarkList.GetMark(1)->GetMarkedSdrObj();
SdrObject* pCloneObj1 = pObj1->Clone();
SdrObject* pCloneObj2 = pObj2->Clone();
// delete text at clone, otherwise we do net get a correct PathObj
pCloneObj1->SetOutlinerParaObject(nullptr);
pCloneObj2->SetOutlinerParaObject(nullptr);
// create path objects
SdrObject* pPolyObj1 = pCloneObj1->ConvertToPolyObj(false, false);
SdrObject* pPolyObj2 = pCloneObj2->ConvertToPolyObj(false, false);
SdAbstractDialogFactory* pFact = SdAbstractDialogFactory::Create();
ScopedVclPtr<AbstractMorphDlg> pDlg(pFact ? pFact->CreateMorphDlg( static_cast< vcl::Window*>(mpWindow), pObj1, pObj2 ) : nullptr);
if(pPolyObj1 && pPolyObj2 && pDlg && (pDlg->Execute() == RET_OK))
{
B2DPolyPolygonList_impl aPolyPolyList;
::basegfx::B2DPolyPolygon aPolyPoly1;
::basegfx::B2DPolyPolygon aPolyPoly2;
pDlg->SaveSettings();
// #i48168# Not always is the pPolyObj1/pPolyObj2 a SdrPathObj, it may also be a group object
// containing SdrPathObjs. To get the polygons, I add two iters here
SdrObjListIter aIter1(*pPolyObj1);
SdrObjListIter aIter2(*pPolyObj2);
while(aIter1.IsMore())
{
SdrObject* pObj = aIter1.Next();
if(pObj && dynamic_cast< SdrPathObj *>( pObj ) != nullptr)
aPolyPoly1.append(static_cast<SdrPathObj*>(pObj)->GetPathPoly());
}
while(aIter2.IsMore())
{
SdrObject* pObj = aIter2.Next();
if(pObj && dynamic_cast< SdrPathObj *>( pObj ) != nullptr)
aPolyPoly2.append(static_cast<SdrPathObj*>(pObj)->GetPathPoly());
}
// perform morphing
if(aPolyPoly1.count() && aPolyPoly2.count())
{
aPolyPoly1 = ::basegfx::tools::correctOrientations(aPolyPoly1);
aPolyPoly1.removeDoublePoints();
::basegfx::B2VectorOrientation eIsClockwise1(::basegfx::tools::getOrientation(aPolyPoly1.getB2DPolygon(0)));
aPolyPoly2 = ::basegfx::tools::correctOrientations(aPolyPoly2);
aPolyPoly2.removeDoublePoints();
::basegfx::B2VectorOrientation eIsClockwise2(::basegfx::tools::getOrientation(aPolyPoly2.getB2DPolygon(0)));
// set same orientation
if(eIsClockwise1 != eIsClockwise2)
aPolyPoly2.flip();
// force same poly count
if(aPolyPoly1.count() < aPolyPoly2.count())
ImpAddPolys(aPolyPoly1, aPolyPoly2);
else if(aPolyPoly2.count() < aPolyPoly1.count())
ImpAddPolys(aPolyPoly2, aPolyPoly1);
// use orientation flag from dialog
if(!pDlg->IsOrientationFade())
aPolyPoly2.flip();
// force same point counts
for( sal_uInt32 a(0); a < aPolyPoly1.count(); a++ )
{
::basegfx::B2DPolygon aSub1(aPolyPoly1.getB2DPolygon(a));
::basegfx::B2DPolygon aSub2(aPolyPoly2.getB2DPolygon(a));
if(aSub1.count() < aSub2.count())
ImpEqualizePolyPointCount(aSub1, aSub2);
else if(aSub2.count() < aSub1.count())
ImpEqualizePolyPointCount(aSub2, aSub1);
aPolyPoly1.setB2DPolygon(a, aSub1);
aPolyPoly2.setB2DPolygon(a, aSub2);
}
if(ImpMorphPolygons(aPolyPoly1, aPolyPoly2, pDlg->GetFadeSteps(), aPolyPolyList))
{
OUString aString(mpView->GetDescriptionOfMarkedObjects());
aString += " " + SdResId(STR_UNDO_MORPHING);
mpView->BegUndo(aString);
ImpInsertPolygons(aPolyPolyList, pDlg->IsAttributeFade(), pObj1, pObj2);
mpView->EndUndo();
}
for(basegfx::B2DPolyPolygon * p : aPolyPolyList) {
delete p;
}
}
}
SdrObject::Free( pCloneObj1 );
SdrObject::Free( pCloneObj2 );
SdrObject::Free( pPolyObj1 );
SdrObject::Free( pPolyObj2 );
}
}
::basegfx::B2DPolygon ImpGetExpandedPolygon(
const ::basegfx::B2DPolygon& rCandidate,
sal_uInt32 nNum
)
{
if(rCandidate.count() && nNum && rCandidate.count() != nNum)
{
// length of step in dest poly
::basegfx::B2DPolygon aRetval;
const double fStep(::basegfx::tools::getLength(rCandidate) / (double)(rCandidate.isClosed() ? nNum : nNum - 1L));
double fDestPos(0.0);
double fSrcPos(0.0);
sal_uInt32 nSrcPos(0);
sal_uInt32 nSrcPosNext((nSrcPos + 1L == rCandidate.count()) ? 0L : nSrcPos + 1L);
double fNextSrcLen(::basegfx::B2DVector(rCandidate.getB2DPoint(nSrcPos) - rCandidate.getB2DPoint(nSrcPosNext)).getLength());
for(sal_uInt32 b(0); b < nNum; b++)
{
// calc fDestPos in source
while(fSrcPos + fNextSrcLen < fDestPos)
{
fSrcPos += fNextSrcLen;
nSrcPos++;
nSrcPosNext = (nSrcPos + 1L == rCandidate.count()) ? 0L : nSrcPos + 1L;
fNextSrcLen = ::basegfx::B2DVector(rCandidate.getB2DPoint(nSrcPos) - rCandidate.getB2DPoint(nSrcPosNext)).getLength();
}
// fDestPos is between fSrcPos and (fSrcPos + fNextSrcLen)
const double fLenA((fDestPos - fSrcPos) / fNextSrcLen);
const ::basegfx::B2DPoint aOld1(rCandidate.getB2DPoint(nSrcPos));
const ::basegfx::B2DPoint aOld2(rCandidate.getB2DPoint(nSrcPosNext));
::basegfx::B2DPoint aNewPoint(basegfx::interpolate(aOld1, aOld2, fLenA));
aRetval.append(aNewPoint);
// next step
fDestPos += fStep;
}
if(aRetval.count() >= 3L)
{
aRetval.setClosed(rCandidate.isClosed());
}
return aRetval;
}
else
{
return rCandidate;
}
}
/**
* make the point count of the polygons equal in adding points
*/
void FuMorph::ImpEqualizePolyPointCount(
::basegfx::B2DPolygon& rSmall,
const ::basegfx::B2DPolygon& rBig
)
{
// create poly with equal point count
const sal_uInt32 nCnt(rBig.count());
::basegfx::B2DPolygon aPoly1(ImpGetExpandedPolygon(rSmall, nCnt));
// create transformation for rBig to do the compare
const ::basegfx::B2DRange aSrcSize(::basegfx::tools::getRange(rBig));
const ::basegfx::B2DPoint aSrcPos(aSrcSize.getCenter());
const ::basegfx::B2DRange aDstSize(::basegfx::tools::getRange(rSmall));
const ::basegfx::B2DPoint aDstPos(aDstSize.getCenter());
basegfx::B2DHomMatrix aTrans(basegfx::tools::createTranslateB2DHomMatrix(-aSrcPos.getX(), -aSrcPos.getY()));
aTrans.scale(aDstSize.getWidth() / aSrcSize.getWidth(), aDstSize.getHeight() / aSrcSize.getHeight());
aTrans.translate(aDstPos.getX(), aDstPos.getY());
// transpose points to have smooth linear blending
::basegfx::B2DPolygon aPoly2;
aPoly2.append(::basegfx::B2DPoint(), nCnt);
sal_uInt32 nInd(ImpGetNearestIndex(aPoly1, aTrans * rBig.getB2DPoint(0)));
for(sal_uInt32 a(0); a < nCnt; a++)
{
aPoly2.setB2DPoint((a + nCnt - nInd) % nCnt, aPoly1.getB2DPoint(a));
}
aPoly2.setClosed(rBig.isClosed());
rSmall = aPoly2;
}
sal_uInt32 FuMorph::ImpGetNearestIndex(
const ::basegfx::B2DPolygon& rPoly,
const ::basegfx::B2DPoint& rPos
)
{
double fMinDist = 0.0;
sal_uInt32 nActInd = 0;
for(sal_uInt32 a(0); a < rPoly.count(); a++)
{
double fNewDist(::basegfx::B2DVector(rPoly.getB2DPoint(a) - rPos).getLength());
if(!a || fNewDist < fMinDist)
{
fMinDist = fNewDist;
nActInd = a;
}
}
return nActInd;
}
/**
* add to a point reduced polys until count is same
*/
void FuMorph::ImpAddPolys(
::basegfx::B2DPolyPolygon& rSmaller,
const ::basegfx::B2DPolyPolygon& rBigger
)
{
while(rSmaller.count() < rBigger.count())
{
const ::basegfx::B2DPolygon aToBeCopied(rBigger.getB2DPolygon(rSmaller.count()));
const ::basegfx::B2DRange aToBeCopiedPolySize(::basegfx::tools::getRange(aToBeCopied));
::basegfx::B2DPoint aNewPoint(aToBeCopiedPolySize.getCenter());
::basegfx::B2DPolygon aNewPoly;
const ::basegfx::B2DRange aSrcSize(::basegfx::tools::getRange(rBigger.getB2DPolygon(0)));
const ::basegfx::B2DPoint aSrcPos(aSrcSize.getCenter());
const ::basegfx::B2DRange aDstSize(::basegfx::tools::getRange(rSmaller.getB2DPolygon(0)));
const ::basegfx::B2DPoint aDstPos(aDstSize.getCenter());
aNewPoint = aNewPoint - aSrcPos + aDstPos;
for(sal_uInt32 a(0); a < aToBeCopied.count(); a++)
{
aNewPoly.append(aNewPoint);
}
rSmaller.append(aNewPoly);
}
}
/**
* create group object with morphed polygons
*/
void FuMorph::ImpInsertPolygons(
B2DPolyPolygonList_impl& rPolyPolyList3D,
bool bAttributeFade,
const SdrObject* pObj1,
const SdrObject* pObj2
)
{
Color aStartFillCol;
Color aEndFillCol;
Color aStartLineCol;
Color aEndLineCol;
long nStartLineWidth = 0;
long nEndLineWidth = 0;
SdrPageView* pPageView = mpView->GetSdrPageView();
SfxItemPool & rPool = pObj1->GetObjectItemPool();
SfxItemSet aSet1( rPool,svl::Items<SDRATTR_START,SDRATTR_NOTPERSIST_FIRST-1,EE_ITEMS_START,EE_ITEMS_END>{} );
SfxItemSet aSet2( aSet1 );
bool bLineColor = false;
bool bFillColor = false;
bool bLineWidth = false;
bool bIgnoreLine = false;
bool bIgnoreFill = false;
aSet1.Put(pObj1->GetMergedItemSet());
aSet2.Put(pObj2->GetMergedItemSet());
const drawing::LineStyle eLineStyle1 = ITEMVALUE( aSet1, XATTR_LINESTYLE, XLineStyleItem );
const drawing::LineStyle eLineStyle2 = ITEMVALUE( aSet2, XATTR_LINESTYLE, XLineStyleItem );
const drawing::FillStyle eFillStyle1 = ITEMVALUE( aSet1, XATTR_FILLSTYLE, XFillStyleItem );
const drawing::FillStyle eFillStyle2 = ITEMVALUE( aSet2, XATTR_FILLSTYLE, XFillStyleItem );
if ( bAttributeFade )
{
if ( ( eLineStyle1 != drawing::LineStyle_NONE ) && ( eLineStyle2 != drawing::LineStyle_NONE ) )
{
bLineWidth = bLineColor = true;
aStartLineCol = static_cast< XLineColorItem const & >(
aSet1.Get(XATTR_LINECOLOR)).GetColorValue();
aEndLineCol = static_cast< XLineColorItem const & >(
aSet2.Get(XATTR_LINECOLOR)).GetColorValue();
nStartLineWidth = ITEMVALUE( aSet1, XATTR_LINEWIDTH, XLineWidthItem );
nEndLineWidth = ITEMVALUE( aSet2, XATTR_LINEWIDTH, XLineWidthItem );
}
else if ( ( eLineStyle1 == drawing::LineStyle_NONE ) && ( eLineStyle2 == drawing::LineStyle_NONE ) )
bIgnoreLine = true;
if ( ( eFillStyle1 == drawing::FillStyle_SOLID ) && ( eFillStyle2 == drawing::FillStyle_SOLID ) )
{
bFillColor = true;
aStartFillCol = static_cast< XFillColorItem const & >(
aSet1.Get(XATTR_FILLCOLOR)).GetColorValue();
aEndFillCol = static_cast< XFillColorItem const & >(
aSet2.Get(XATTR_FILLCOLOR)).GetColorValue();
}
else if ( ( eFillStyle1 == drawing::FillStyle_NONE ) && ( eFillStyle2 == drawing::FillStyle_NONE ) )
bIgnoreFill = true;
}
if ( pPageView )
{
SfxItemSet aSet( aSet1 );
SdrObjGroup* pObjGroup = new SdrObjGroup;
SdrObjList* pObjList = pObjGroup->GetSubList();
const size_t nCount = rPolyPolyList3D.size();
const double fStep = 1. / ( nCount + 1 );
const double fDelta = nEndLineWidth - nStartLineWidth;
double fFactor = fStep;
aSet.Put( XLineStyleItem( drawing::LineStyle_SOLID ) );
aSet.Put( XFillStyleItem( drawing::FillStyle_SOLID ) );
for ( size_t i = 0; i < nCount; i++, fFactor += fStep )
{
const ::basegfx::B2DPolyPolygon& rPolyPoly3D = *rPolyPolyList3D[ i ];
SdrPathObj* pNewObj = new SdrPathObj(OBJ_POLY, rPolyPoly3D);
// line color
if ( bLineColor )
{
const basegfx::BColor aLineColor(basegfx::interpolate(aStartLineCol.getBColor(), aEndLineCol.getBColor(), fFactor));
aSet.Put( XLineColorItem( "", Color(aLineColor)));
}
else if ( bIgnoreLine )
aSet.Put( XLineStyleItem( drawing::LineStyle_NONE ) );
// fill color
if ( bFillColor )
{
const basegfx::BColor aFillColor(basegfx::interpolate(aStartFillCol.getBColor(), aEndFillCol.getBColor(), fFactor));
aSet.Put( XFillColorItem( "", Color(aFillColor)));
}
else if ( bIgnoreFill )
aSet.Put( XFillStyleItem( drawing::FillStyle_NONE ) );
// line width
if ( bLineWidth )
aSet.Put( XLineWidthItem( nStartLineWidth + (long) ( fFactor * fDelta + 0.5 ) ) );
pNewObj->SetMergedItemSetAndBroadcast(aSet);
pObjList->InsertObject( pNewObj );
}
if ( nCount )
{
pObjList->InsertObject( pObj1->Clone(), 0 );
pObjList->InsertObject( pObj2->Clone() );
mpView->DeleteMarked();
mpView->InsertObjectAtView( pObjGroup, *pPageView, SdrInsertFlags:: SETDEFLAYER );
}
}
}
/**
* create single morphed PolyPolygon
*/
::basegfx::B2DPolyPolygon* FuMorph::ImpCreateMorphedPolygon(
const ::basegfx::B2DPolyPolygon& rPolyPolyStart,
const ::basegfx::B2DPolyPolygon& rPolyPolyEnd,
double fMorphingFactor
)
{
::basegfx::B2DPolyPolygon* pNewPolyPolygon = new ::basegfx::B2DPolyPolygon();
const double fFactor = 1.0 - fMorphingFactor;
for(sal_uInt32 a(0); a < rPolyPolyStart.count(); a++)
{
const ::basegfx::B2DPolygon aPolyStart(rPolyPolyStart.getB2DPolygon(a));
const ::basegfx::B2DPolygon aPolyEnd(rPolyPolyEnd.getB2DPolygon(a));
const sal_uInt32 nCount(aPolyStart.count());
::basegfx::B2DPolygon aNewPolygon;
for(sal_uInt32 b(0); b < nCount; b++)
{
const ::basegfx::B2DPoint& aPtStart(aPolyStart.getB2DPoint(b));
const ::basegfx::B2DPoint& aPtEnd(aPolyEnd.getB2DPoint(b));
aNewPolygon.append(aPtEnd + ((aPtStart - aPtEnd) * fFactor));
}
aNewPolygon.setClosed(aPolyStart.isClosed() && aPolyEnd.isClosed());
pNewPolyPolygon->append(aNewPolygon);
}
return pNewPolyPolygon;
}
/**
* create morphed PolyPolygons
*/
bool FuMorph::ImpMorphPolygons(
const ::basegfx::B2DPolyPolygon& rPolyPoly1,
const ::basegfx::B2DPolyPolygon& rPolyPoly2,
const sal_uInt16 nSteps,
B2DPolyPolygonList_impl& rPolyPolyList3D
)
{
if(nSteps)
{
const ::basegfx::B2DRange aStartPolySize(::basegfx::tools::getRange(rPolyPoly1));
const ::basegfx::B2DPoint aStartCenter(aStartPolySize.getCenter());
const ::basegfx::B2DRange aEndPolySize(::basegfx::tools::getRange(rPolyPoly2));
const ::basegfx::B2DPoint aEndCenter(aEndPolySize.getCenter());
const ::basegfx::B2DPoint aDelta(aEndCenter - aStartCenter);
const double fFactor(1.0 / (nSteps + 1));
double fValue(0.0);
for(sal_uInt16 i(0); i < nSteps; i++)
{
fValue += fFactor;
::basegfx::B2DPolyPolygon* pNewPolyPoly2D = ImpCreateMorphedPolygon(rPolyPoly1, rPolyPoly2, fValue);
const ::basegfx::B2DRange aNewPolySize(::basegfx::tools::getRange(*pNewPolyPoly2D));
const ::basegfx::B2DPoint aNewS(aNewPolySize.getCenter());
const ::basegfx::B2DPoint aRealS(aStartCenter + (aDelta * fValue));
const ::basegfx::B2DPoint aDiff(aRealS - aNewS);
pNewPolyPoly2D->transform(basegfx::tools::createTranslateB2DHomMatrix(aDiff));
rPolyPolyList3D.push_back( pNewPolyPoly2D );
}
}
return true;
}
} // end of namespace sd
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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