Bug Summary

File:home/maarten/src/libreoffice/core/include/rtl/ref.hxx
Warning:line 77, column 13
Use of memory after it is freed

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name fumorph.cxx -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -mframe-pointer=all -fmath-errno -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/lib64/clang/11.0.0 -isystem /usr/include/libxml2 -isystem /usr/include/dbus-1.0 -isystem /usr/lib64/dbus-1.0/include -D BOOST_ERROR_CODE_HEADER_ONLY -D BOOST_SYSTEM_NO_DEPRECATED -D CPPU_ENV=gcc3 -D LINUX -D OSL_DEBUG_LEVEL=1 -D SAL_LOG_INFO -D SAL_LOG_WARN -D UNIX -D UNX -D X86_64 -D _PTHREADS -D _REENTRANT -D SD_DLLIMPLEMENTATION -D SDUI_DLL_NAME="libsduilo.so" -D SYSTEM_LIBXML -D ENABLE_SDREMOTE -D ENABLE_SDREMOTE_BLUETOOTH -D EXCEPTIONS_ON -D LIBO_INTERNAL_ONLY -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/icu/source -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/icu/source/i18n -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/icu/source/common -I /home/maarten/src/libreoffice/core/external/boost/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/boost -I /home/maarten/src/libreoffice/core/external/bluez_bluetooth/inc -I /home/maarten/src/libreoffice/core/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include/linux -I /home/maarten/src/libreoffice/core/config_host -I /home/maarten/src/libreoffice/core/sd/inc -I /home/maarten/src/libreoffice/core/sd/source/ui/inc -I /home/maarten/src/libreoffice/core/sd/source/ui/slidesorter/inc -I /home/maarten/src/libreoffice/core/workdir/SdiTarget/sd/sdi -I /home/maarten/src/libreoffice/core/workdir/CustomTarget/officecfg/registry -I /home/maarten/src/libreoffice/core/workdir/CustomTarget/oox/generated -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/udkapi/normal -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/offapi/normal -I /usr/include/glib-2.0 -I /usr/lib64/glib-2.0/include -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10 -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/x86_64-redhat-linux -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/backward -internal-isystem /usr/local/include -internal-isystem /usr/lib64/clang/11.0.0/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O0 -Wno-missing-braces -std=c++17 -fdeprecated-macro -fdebug-compilation-dir /home/maarten/src/libreoffice/core -ferror-limit 19 -fvisibility hidden -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -debug-info-kind=constructor -analyzer-output=html -faddrsig -o /home/maarten/tmp/wis/scan-build-libreoffice/output/report/2020-10-07-141433-9725-1 -x c++ /home/maarten/src/libreoffice/core/sd/source/ui/func/fumorph.cxx

/home/maarten/src/libreoffice/core/sd/source/ui/func/fumorph.cxx

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#include <fumorph.hxx>
21#include <svx/xfillit0.hxx>
22#include <svx/xlineit0.hxx>
23#include <svx/xlnclit.hxx>
24#include <svx/xlnwtit.hxx>
25#include <svx/xflclit.hxx>
26#include <svx/svdopath.hxx>
27#include <svx/svdogrp.hxx>
28#include <editeng/eeitem.hxx>
29#include <editeng/outlobj.hxx>
30
31#include <View.hxx>
32#include <Window.hxx>
33#include <basegfx/polygon/b2dpolygontools.hxx>
34#include <basegfx/polygon/b2dpolypolygontools.hxx>
35#include <basegfx/matrix/b2dhommatrix.hxx>
36#include <basegfx/matrix/b2dhommatrixtools.hxx>
37
38#include <strings.hrc>
39#include <sdresid.hxx>
40
41#include <sdabstdlg.hxx>
42
43#include <svx/svditer.hxx>
44
45#include <basegfx/color/bcolor.hxx>
46#include <com/sun/star/drawing/LineStyle.hpp>
47
48using namespace com::sun::star;
49
50namespace sd {
51
52FuMorph::FuMorph (
53 ViewShell* pViewSh,
54 ::sd::Window* pWin,
55 ::sd::View* pView,
56 SdDrawDocument* pDoc,
57 SfxRequest& rReq )
58 : FuPoor(pViewSh, pWin, pView, pDoc, rReq)
59{
60}
61
62rtl::Reference<FuPoor> FuMorph::Create(
63 ViewShell* pViewSh,
64 ::sd::Window* pWin,
65 ::sd::View* pView,
66 SdDrawDocument* pDoc,
67 SfxRequest& rReq
68)
69{
70 rtl::Reference<FuPoor> xFunc( new FuMorph( pViewSh, pWin, pView, pDoc, rReq ) );
71 xFunc->DoExecute(rReq);
72 return xFunc;
73}
74
75void FuMorph::DoExecute( SfxRequest& )
76{
77 const SdrMarkList& rMarkList = mpView->GetMarkedObjectList();
78
79 if(rMarkList.GetMarkCount() != 2)
1
Assuming the condition is false
2
Taking false branch
80 return;
81
82 // create clones
83 SdrObject* pObj1 = rMarkList.GetMark(0)->GetMarkedSdrObj();
84 SdrObject* pObj2 = rMarkList.GetMark(1)->GetMarkedSdrObj();
85 SdrObject* pCloneObj1(pObj1->CloneSdrObject(pObj1->getSdrModelFromSdrObject()));
86 SdrObject* pCloneObj2(pObj2->CloneSdrObject(pObj2->getSdrModelFromSdrObject()));
87
88 // delete text at clone, otherwise we do not get a correct PathObj
89 pCloneObj1->SetOutlinerParaObject(nullptr);
90 pCloneObj2->SetOutlinerParaObject(nullptr);
91
92 // create path objects
93 SdrObjectUniquePtr pPolyObj1 = pCloneObj1->ConvertToPolyObj(false, false);
94 SdrObjectUniquePtr pPolyObj2 = pCloneObj2->ConvertToPolyObj(false, false);
95 SdAbstractDialogFactory* pFact = SdAbstractDialogFactory::Create();
96 ScopedVclPtr<AbstractMorphDlg> pDlg( pFact->CreateMorphDlg(mpWindow ? mpWindow->GetFrameWeld() : nullptr, pObj1, pObj2) );
3
'?' condition is false
4
Calling constructor for 'ScopedVclPtr<AbstractMorphDlg>'
11
Returning from constructor for 'ScopedVclPtr<AbstractMorphDlg>'
12
Calling implicit destructor for 'VclPtr<AbstractMorphDlg>'
13
Calling '~Reference'
20
Returning from '~Reference'
21
Returning from destructor for 'VclPtr<AbstractMorphDlg>'
97 if(pPolyObj1 && pPolyObj2 && (pDlg->Execute() == RET_OK))
98 {
99 B2DPolyPolygonList_impl aPolyPolyList;
100 ::basegfx::B2DPolyPolygon aPolyPoly1;
101 ::basegfx::B2DPolyPolygon aPolyPoly2;
102
103 pDlg->SaveSettings();
104
105 // #i48168# Not always is the pPolyObj1/pPolyObj2 a SdrPathObj, it may also be a group object
106 // containing SdrPathObjs. To get the polygons, I add two iters here
107 SdrObjListIter aIter1(*pPolyObj1);
108 SdrObjListIter aIter2(*pPolyObj2);
109
110 while(aIter1.IsMore())
111 {
112 SdrObject* pObj = aIter1.Next();
113 if(auto pPathObj = dynamic_cast< SdrPathObj *>( pObj ))
114 aPolyPoly1.append(pPathObj->GetPathPoly());
115 }
116
117 while(aIter2.IsMore())
118 {
119 SdrObject* pObj = aIter2.Next();
120 if(auto pPathObj = dynamic_cast< SdrPathObj *>( pObj ))
121 aPolyPoly2.append(pPathObj->GetPathPoly());
122 }
123
124 // perform morphing
125 if(aPolyPoly1.count() && aPolyPoly2.count())
126 {
127 aPolyPoly1 = ::basegfx::utils::correctOrientations(aPolyPoly1);
128 aPolyPoly1.removeDoublePoints();
129 ::basegfx::B2VectorOrientation eIsClockwise1(::basegfx::utils::getOrientation(aPolyPoly1.getB2DPolygon(0)));
130
131 aPolyPoly2 = ::basegfx::utils::correctOrientations(aPolyPoly2);
132 aPolyPoly2.removeDoublePoints();
133 ::basegfx::B2VectorOrientation eIsClockwise2(::basegfx::utils::getOrientation(aPolyPoly2.getB2DPolygon(0)));
134
135 // set same orientation
136 if(eIsClockwise1 != eIsClockwise2)
137 aPolyPoly2.flip();
138
139 // force same poly count
140 if(aPolyPoly1.count() < aPolyPoly2.count())
141 ImpAddPolys(aPolyPoly1, aPolyPoly2);
142 else if(aPolyPoly2.count() < aPolyPoly1.count())
143 ImpAddPolys(aPolyPoly2, aPolyPoly1);
144
145 // use orientation flag from dialog
146 if(!pDlg->IsOrientationFade())
147 aPolyPoly2.flip();
148
149 // force same point counts
150 for( sal_uInt32 a(0); a < aPolyPoly1.count(); a++ )
151 {
152 ::basegfx::B2DPolygon aSub1(aPolyPoly1.getB2DPolygon(a));
153 ::basegfx::B2DPolygon aSub2(aPolyPoly2.getB2DPolygon(a));
154
155 if(aSub1.count() < aSub2.count())
156 ImpEqualizePolyPointCount(aSub1, aSub2);
157 else if(aSub2.count() < aSub1.count())
158 ImpEqualizePolyPointCount(aSub2, aSub1);
159
160 aPolyPoly1.setB2DPolygon(a, aSub1);
161 aPolyPoly2.setB2DPolygon(a, aSub2);
162 }
163
164 ImpMorphPolygons(aPolyPoly1, aPolyPoly2, pDlg->GetFadeSteps(), aPolyPolyList);
165
166 OUString aString = mpView->GetDescriptionOfMarkedObjects() +
167 " " + SdResId(STR_UNDO_MORPHINGreinterpret_cast<char const *>("STR_UNDO_MORPHING" "\004"
u8"Cross-fading")
);
168
169 mpView->BegUndo(aString);
170 ImpInsertPolygons(aPolyPolyList, pDlg->IsAttributeFade(), pObj1, pObj2);
171 mpView->EndUndo();
172 }
173 }
174 SdrObject::Free( pCloneObj1 );
175 SdrObject::Free( pCloneObj2 );
176}
22
Calling '~ScopedVclPtr'
177
178static ::basegfx::B2DPolygon ImpGetExpandedPolygon(
179 const ::basegfx::B2DPolygon& rCandidate,
180 sal_uInt32 nNum
181)
182{
183 if(rCandidate.count() && nNum && rCandidate.count() != nNum)
184 {
185 // length of step in dest poly
186 ::basegfx::B2DPolygon aRetval;
187 const double fStep(::basegfx::utils::getLength(rCandidate) / static_cast<double>(rCandidate.isClosed() ? nNum : nNum - 1));
188 double fDestPos(0.0);
189 double fSrcPos(0.0);
190 sal_uInt32 nSrcPos(0);
191 sal_uInt32 nSrcPosNext((nSrcPos + 1 == rCandidate.count()) ? 0L : nSrcPos + 1);
192 double fNextSrcLen(::basegfx::B2DVector(rCandidate.getB2DPoint(nSrcPos) - rCandidate.getB2DPoint(nSrcPosNext)).getLength());
193
194 for(sal_uInt32 b(0); b < nNum; b++)
195 {
196 // calc fDestPos in source
197 while(fSrcPos + fNextSrcLen < fDestPos)
198 {
199 fSrcPos += fNextSrcLen;
200 nSrcPos++;
201 nSrcPosNext = (nSrcPos + 1 == rCandidate.count()) ? 0L : nSrcPos + 1;
202 fNextSrcLen = ::basegfx::B2DVector(rCandidate.getB2DPoint(nSrcPos) - rCandidate.getB2DPoint(nSrcPosNext)).getLength();
203 }
204
205 // fDestPos is between fSrcPos and (fSrcPos + fNextSrcLen)
206 const double fLenA((fDestPos - fSrcPos) / fNextSrcLen);
207 const ::basegfx::B2DPoint aOld1(rCandidate.getB2DPoint(nSrcPos));
208 const ::basegfx::B2DPoint aOld2(rCandidate.getB2DPoint(nSrcPosNext));
209 ::basegfx::B2DPoint aNewPoint(basegfx::interpolate(aOld1, aOld2, fLenA));
210 aRetval.append(aNewPoint);
211
212 // next step
213 fDestPos += fStep;
214 }
215
216 if(aRetval.count() >= 3)
217 {
218 aRetval.setClosed(rCandidate.isClosed());
219 }
220
221 return aRetval;
222 }
223 else
224 {
225 return rCandidate;
226 }
227}
228
229/**
230 * make the point count of the polygons equal in adding points
231 */
232void FuMorph::ImpEqualizePolyPointCount(
233 ::basegfx::B2DPolygon& rSmall,
234 const ::basegfx::B2DPolygon& rBig
235)
236{
237 // create poly with equal point count
238 const sal_uInt32 nCnt(rBig.count());
239 ::basegfx::B2DPolygon aPoly1(ImpGetExpandedPolygon(rSmall, nCnt));
240
241 // create transformation for rBig to do the compare
242 const ::basegfx::B2DRange aSrcSize(::basegfx::utils::getRange(rBig));
243 const ::basegfx::B2DPoint aSrcPos(aSrcSize.getCenter());
244 const ::basegfx::B2DRange aDstSize(::basegfx::utils::getRange(rSmall));
245 const ::basegfx::B2DPoint aDstPos(aDstSize.getCenter());
246
247 basegfx::B2DHomMatrix aTrans(basegfx::utils::createTranslateB2DHomMatrix(-aSrcPos.getX(), -aSrcPos.getY()));
248 aTrans.scale(aDstSize.getWidth() / aSrcSize.getWidth(), aDstSize.getHeight() / aSrcSize.getHeight());
249 aTrans.translate(aDstPos.getX(), aDstPos.getY());
250
251 // transpose points to have smooth linear blending
252 ::basegfx::B2DPolygon aPoly2;
253 aPoly2.append(::basegfx::B2DPoint(), nCnt);
254 sal_uInt32 nInd(ImpGetNearestIndex(aPoly1, aTrans * rBig.getB2DPoint(0)));
255
256 for(sal_uInt32 a(0); a < nCnt; a++)
257 {
258 aPoly2.setB2DPoint((a + nCnt - nInd) % nCnt, aPoly1.getB2DPoint(a));
259 }
260
261 aPoly2.setClosed(rBig.isClosed());
262 rSmall = aPoly2;
263}
264
265sal_uInt32 FuMorph::ImpGetNearestIndex(
266 const ::basegfx::B2DPolygon& rPoly,
267 const ::basegfx::B2DPoint& rPos
268)
269{
270 double fMinDist = 0.0;
271 sal_uInt32 nActInd = 0;
272
273 for(sal_uInt32 a(0); a < rPoly.count(); a++)
274 {
275 double fNewDist(::basegfx::B2DVector(rPoly.getB2DPoint(a) - rPos).getLength());
276
277 if(!a || fNewDist < fMinDist)
278 {
279 fMinDist = fNewDist;
280 nActInd = a;
281 }
282 }
283
284 return nActInd;
285}
286
287/**
288 * add to a point reduced polys until count is same
289 */
290void FuMorph::ImpAddPolys(
291 ::basegfx::B2DPolyPolygon& rSmaller,
292 const ::basegfx::B2DPolyPolygon& rBigger
293)
294{
295 while(rSmaller.count() < rBigger.count())
296 {
297 const ::basegfx::B2DPolygon& aToBeCopied(rBigger.getB2DPolygon(rSmaller.count()));
298 const ::basegfx::B2DRange aToBeCopiedPolySize(::basegfx::utils::getRange(aToBeCopied));
299 ::basegfx::B2DPoint aNewPoint(aToBeCopiedPolySize.getCenter());
300 ::basegfx::B2DPolygon aNewPoly;
301
302 const ::basegfx::B2DRange aSrcSize(::basegfx::utils::getRange(rBigger.getB2DPolygon(0)));
303 const ::basegfx::B2DPoint aSrcPos(aSrcSize.getCenter());
304 const ::basegfx::B2DRange aDstSize(::basegfx::utils::getRange(rSmaller.getB2DPolygon(0)));
305 const ::basegfx::B2DPoint aDstPos(aDstSize.getCenter());
306 aNewPoint = aNewPoint - aSrcPos + aDstPos;
307
308 for(sal_uInt32 a(0); a < aToBeCopied.count(); a++)
309 {
310 aNewPoly.append(aNewPoint);
311 }
312
313 rSmaller.append(aNewPoly);
314 }
315}
316
317/**
318 * create group object with morphed polygons
319 */
320void FuMorph::ImpInsertPolygons(
321 B2DPolyPolygonList_impl& rPolyPolyList3D,
322 bool bAttributeFade,
323 const SdrObject* pObj1,
324 const SdrObject* pObj2
325)
326{
327 Color aStartFillCol;
328 Color aEndFillCol;
329 Color aStartLineCol;
330 Color aEndLineCol;
331 long nStartLineWidth = 0;
332 long nEndLineWidth = 0;
333 SdrPageView* pPageView = mpView->GetSdrPageView();
334 SfxItemPool & rPool = pObj1->GetObjectItemPool();
335 SfxItemSet aSet1( rPool,svl::Items<SDRATTR_START,SDRATTR_NOTPERSIST_FIRST-1,EE_ITEMS_START,EE_ITEMS_END>{} );
336 SfxItemSet aSet2( aSet1 );
337 bool bLineColor = false;
338 bool bFillColor = false;
339 bool bLineWidth = false;
340 bool bIgnoreLine = false;
341 bool bIgnoreFill = false;
342
343 aSet1.Put(pObj1->GetMergedItemSet());
344 aSet2.Put(pObj2->GetMergedItemSet());
345
346 const drawing::LineStyle eLineStyle1 = aSet1.Get(XATTR_LINESTYLE).GetValue();
347 const drawing::LineStyle eLineStyle2 = aSet2.Get(XATTR_LINESTYLE).GetValue();
348 const drawing::FillStyle eFillStyle1 = aSet1.Get(XATTR_FILLSTYLE).GetValue();
349 const drawing::FillStyle eFillStyle2 = aSet2.Get(XATTR_FILLSTYLE).GetValue();
350
351 if ( bAttributeFade )
352 {
353 if ( ( eLineStyle1 != drawing::LineStyle_NONE ) && ( eLineStyle2 != drawing::LineStyle_NONE ) )
354 {
355 bLineWidth = bLineColor = true;
356
357 aStartLineCol = aSet1.Get(XATTR_LINECOLOR).GetColorValue();
358 aEndLineCol = aSet2.Get(XATTR_LINECOLOR).GetColorValue();
359
360 nStartLineWidth = aSet1.Get(XATTR_LINEWIDTH).GetValue();
361 nEndLineWidth = aSet2.Get(XATTR_LINEWIDTH).GetValue();
362 }
363 else if ( ( eLineStyle1 == drawing::LineStyle_NONE ) && ( eLineStyle2 == drawing::LineStyle_NONE ) )
364 bIgnoreLine = true;
365
366 if ( ( eFillStyle1 == drawing::FillStyle_SOLID ) && ( eFillStyle2 == drawing::FillStyle_SOLID ) )
367 {
368 bFillColor = true;
369 aStartFillCol = aSet1.Get(XATTR_FILLCOLOR).GetColorValue();
370 aEndFillCol = aSet2.Get(XATTR_FILLCOLOR).GetColorValue();
371 }
372 else if ( ( eFillStyle1 == drawing::FillStyle_NONE ) && ( eFillStyle2 == drawing::FillStyle_NONE ) )
373 bIgnoreFill = true;
374 }
375
376 if ( !pPageView )
377 return;
378
379 SfxItemSet aSet( aSet1 );
380 std::unique_ptr<SdrObjGroup, SdrObjectFreeOp> xObjGroup(new SdrObjGroup(mpView->getSdrModelFromSdrView()));
381 SdrObjList* pObjList = xObjGroup->GetSubList();
382 const size_t nCount = rPolyPolyList3D.size();
383 const double fStep = 1. / ( nCount + 1 );
384 const double fDelta = nEndLineWidth - nStartLineWidth;
385 double fFactor = fStep;
386
387 aSet.Put( XLineStyleItem( drawing::LineStyle_SOLID ) );
388 aSet.Put( XFillStyleItem( drawing::FillStyle_SOLID ) );
389
390 for ( size_t i = 0; i < nCount; i++, fFactor += fStep )
391 {
392 const ::basegfx::B2DPolyPolygon& rPolyPoly3D = rPolyPolyList3D[ i ];
393 SdrPathObj* pNewObj = new SdrPathObj(
394 mpView->getSdrModelFromSdrView(),
395 OBJ_POLY,
396 rPolyPoly3D);
397
398 // line color
399 if ( bLineColor )
400 {
401 const basegfx::BColor aLineColor(basegfx::interpolate(aStartLineCol.getBColor(), aEndLineCol.getBColor(), fFactor));
402 aSet.Put( XLineColorItem( "", Color(aLineColor)));
403 }
404 else if ( bIgnoreLine )
405 aSet.Put( XLineStyleItem( drawing::LineStyle_NONE ) );
406
407 // fill color
408 if ( bFillColor )
409 {
410 const basegfx::BColor aFillColor(basegfx::interpolate(aStartFillCol.getBColor(), aEndFillCol.getBColor(), fFactor));
411 aSet.Put( XFillColorItem( "", Color(aFillColor)));
412 }
413 else if ( bIgnoreFill )
414 aSet.Put( XFillStyleItem( drawing::FillStyle_NONE ) );
415
416 // line width
417 if ( bLineWidth )
418 aSet.Put( XLineWidthItem( nStartLineWidth + static_cast<long>( fFactor * fDelta + 0.5 ) ) );
419
420 pNewObj->SetMergedItemSetAndBroadcast(aSet);
421
422 pObjList->InsertObject( pNewObj );
423 }
424
425 if ( nCount )
426 {
427 pObjList->InsertObject(
428 pObj1->CloneSdrObject(pObj1->getSdrModelFromSdrObject()),
429 0 );
430 pObjList->InsertObject(
431 pObj2->CloneSdrObject(pObj2->getSdrModelFromSdrObject()) );
432
433 mpView->DeleteMarked();
434 mpView->InsertObjectAtView(xObjGroup.release(), *pPageView, SdrInsertFlags:: SETDEFLAYER);
435 }
436}
437
438/**
439 * create single morphed PolyPolygon
440 */
441::basegfx::B2DPolyPolygon FuMorph::ImpCreateMorphedPolygon(
442 const ::basegfx::B2DPolyPolygon& rPolyPolyStart,
443 const ::basegfx::B2DPolyPolygon& rPolyPolyEnd,
444 double fMorphingFactor
445)
446{
447 ::basegfx::B2DPolyPolygon aNewPolyPolygon;
448 const double fFactor = 1.0 - fMorphingFactor;
449
450 for(sal_uInt32 a(0); a < rPolyPolyStart.count(); a++)
451 {
452 const ::basegfx::B2DPolygon& aPolyStart(rPolyPolyStart.getB2DPolygon(a));
453 const ::basegfx::B2DPolygon& aPolyEnd(rPolyPolyEnd.getB2DPolygon(a));
454 const sal_uInt32 nCount(aPolyStart.count());
455 ::basegfx::B2DPolygon aNewPolygon;
456
457 for(sal_uInt32 b(0); b < nCount; b++)
458 {
459 const ::basegfx::B2DPoint& aPtStart(aPolyStart.getB2DPoint(b));
460 const ::basegfx::B2DPoint& aPtEnd(aPolyEnd.getB2DPoint(b));
461 aNewPolygon.append(aPtEnd + ((aPtStart - aPtEnd) * fFactor));
462 }
463
464 aNewPolygon.setClosed(aPolyStart.isClosed() && aPolyEnd.isClosed());
465 aNewPolyPolygon.append(aNewPolygon);
466 }
467
468 return aNewPolyPolygon;
469}
470
471/**
472 * create morphed PolyPolygons
473 */
474void FuMorph::ImpMorphPolygons(
475 const ::basegfx::B2DPolyPolygon& rPolyPoly1,
476 const ::basegfx::B2DPolyPolygon& rPolyPoly2,
477 const sal_uInt16 nSteps,
478 B2DPolyPolygonList_impl& rPolyPolyList3D
479)
480{
481 if(!nSteps)
482 return;
483
484 const ::basegfx::B2DRange aStartPolySize(::basegfx::utils::getRange(rPolyPoly1));
485 const ::basegfx::B2DPoint aStartCenter(aStartPolySize.getCenter());
486 const ::basegfx::B2DRange aEndPolySize(::basegfx::utils::getRange(rPolyPoly2));
487 const ::basegfx::B2DPoint aEndCenter(aEndPolySize.getCenter());
488 const ::basegfx::B2DPoint aDelta(aEndCenter - aStartCenter);
489 const double fFactor(1.0 / (nSteps + 1));
490 double fValue(0.0);
491
492 for(sal_uInt16 i(0); i < nSteps; i++)
493 {
494 fValue += fFactor;
495 ::basegfx::B2DPolyPolygon aNewPolyPoly2D = ImpCreateMorphedPolygon(rPolyPoly1, rPolyPoly2, fValue);
496
497 const ::basegfx::B2DRange aNewPolySize(::basegfx::utils::getRange(aNewPolyPoly2D));
498 const ::basegfx::B2DPoint aNewS(aNewPolySize.getCenter());
499 const ::basegfx::B2DPoint aRealS(aStartCenter + (aDelta * fValue));
500 const ::basegfx::B2DPoint aDiff(aRealS - aNewS);
501
502 aNewPolyPoly2D.transform(basegfx::utils::createTranslateB2DHomMatrix(aDiff));
503 rPolyPolyList3D.push_back( std::move(aNewPolyPoly2D) );
504 }
505}
506
507} // end of namespace sd
508
509/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#ifndef INCLUDED_VCL_PTR_HXX
21#define INCLUDED_VCL_PTR_HXX
22
23#include <sal/config.h>
24
25#include <rtl/ref.hxx>
26
27#include <utility>
28#include <type_traits>
29
30#ifdef DBG_UTIL
31#ifndef _WIN32
32#include <vcl/vclmain.hxx>
33#endif
34#endif
35
36class VclReferenceBase;
37
38namespace vcl::detail {
39
40template<typename>
41constexpr bool isIncompleteOrDerivedFromVclReferenceBase(...) { return true; }
42
43template<typename T> constexpr bool isIncompleteOrDerivedFromVclReferenceBase(
44 int (*)[sizeof(T)])
45{ return std::is_base_of<VclReferenceBase, T>::value; }
46
47} // namespace vcl::detail
48
49/**
50 * A thin wrapper around rtl::Reference to implement the acquire and dispose semantics we want for references to vcl::Window subclasses.
51 *
52 * For more details on the design please see vcl/README.lifecycle
53 *
54 * @param reference_type must be a subclass of vcl::Window
55 */
56template <class reference_type>
57class VclPtr
58{
59 static_assert(
60 vcl::detail::isIncompleteOrDerivedFromVclReferenceBase<reference_type>(
61 nullptr),
62 "template argument type must be derived from VclReferenceBase");
63
64 ::rtl::Reference<reference_type> m_rInnerRef;
65
66public:
67 /** Constructor...
68 */
69 VclPtr()
70 : m_rInnerRef()
71 {}
72
73 /** Constructor...
74 */
75 VclPtr (reference_type * pBody)
76 : m_rInnerRef(pBody)
77 {}
78
79 /** Constructor... that doesn't take a ref.
80 */
81 VclPtr (reference_type * pBody, __sal_NoAcquire)
82 : m_rInnerRef(pBody, SAL_NO_ACQUIRE)
83 {}
84
85 /** Up-casting conversion constructor: Copies interface reference.
86
87 Does not work for up-casts to ambiguous bases. For the special case of
88 up-casting to Reference< XInterface >, see the corresponding conversion
89 operator.
90
91 @param rRef another reference
92 */
93 template< class derived_type >
94 VclPtr(
95 const VclPtr< derived_type > & rRef,
96 typename std::enable_if<
97 std::is_base_of<reference_type, derived_type>::value, int>::type
98 = 0 )
99 : m_rInnerRef( static_cast<reference_type*>(rRef) )
100 {
101 }
102
103#if defined(DBG_UTIL) && !defined(_WIN32)
104 virtual ~VclPtr()
105 {
106 assert(m_rInnerRef.get() == nullptr || vclmain::isAlive())(static_cast <bool> (m_rInnerRef.get() == nullptr || vclmain
::isAlive()) ? void (0) : __assert_fail ("m_rInnerRef.get() == nullptr || vclmain::isAlive()"
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 106, __extension__ __PRETTY_FUNCTION__))
;
107 // We can be one of the intermediate counts, but if we are the last
108 // VclPtr keeping this object alive, then something forgot to call dispose().
109 assert((!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1)(static_cast <bool> ((!m_rInnerRef.get() || m_rInnerRef
->isDisposed() || m_rInnerRef->getRefCount() > 1) &&
"someone forgot to call dispose()") ? void (0) : __assert_fail
("(!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1) && \"someone forgot to call dispose()\""
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 110, __extension__ __PRETTY_FUNCTION__))
110 && "someone forgot to call dispose()")(static_cast <bool> ((!m_rInnerRef.get() || m_rInnerRef
->isDisposed() || m_rInnerRef->getRefCount() > 1) &&
"someone forgot to call dispose()") ? void (0) : __assert_fail
("(!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1) && \"someone forgot to call dispose()\""
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 110, __extension__ __PRETTY_FUNCTION__))
;
111 }
112 VclPtr(VclPtr const &) = default;
113 VclPtr(VclPtr &&) = default;
114 VclPtr & operator =(VclPtr const &) = default;
115 VclPtr & operator =(VclPtr &&) = default;
116#endif
117
118 /**
119 * A construction helper for VclPtr. Since VclPtr types are created
120 * with a reference-count of one - to help fit into the existing
121 * code-flow; this helps us to construct them easily.
122 *
123 * For more details on the design please see vcl/README.lifecycle
124 *
125 * @tparam reference_type must be a subclass of vcl::Window
126 */
127 template<typename... Arg> [[nodiscard]] static VclPtr< reference_type > Create(Arg &&... arg)
128 {
129 return VclPtr< reference_type >( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE );
130 }
131
132 /** Probably most common used: handle->someBodyOp().
133 */
134 reference_type * operator->() const
135 {
136 return m_rInnerRef.get();
137 }
138
139 /** Get the body. Can be used instead of operator->().
140 I.e. handle->someBodyOp() and handle.get()->someBodyOp()
141 are the same.
142 */
143 reference_type * get() const
144 {
145 return m_rInnerRef.get();
146 }
147
148 void set(reference_type *pBody)
149 {
150 m_rInnerRef.set(pBody);
151 }
152
153 void reset(reference_type *pBody)
154 {
155 m_rInnerRef.set(pBody);
156 }
157
158 /** Up-casting copy assignment operator.
159
160 Does not work for up-casts to ambiguous bases.
161
162 @param rRef another reference
163 */
164 template<typename derived_type>
165 typename std::enable_if<
166 std::is_base_of<reference_type, derived_type>::value,
167 VclPtr &>::type
168 operator =(VclPtr<derived_type> const & rRef)
169 {
170 m_rInnerRef.set(rRef.get());
171 return *this;
172 }
173
174 VclPtr & operator =(reference_type * pBody)
175 {
176 m_rInnerRef.set(pBody);
177 return *this;
178 }
179
180 operator reference_type * () const
181 {
182 return m_rInnerRef.get();
183 }
184
185 explicit operator bool () const
186 {
187 return m_rInnerRef.get() != nullptr;
188 }
189
190 void clear()
191 {
192 m_rInnerRef.clear();
193 }
194
195 void reset()
196 {
197 m_rInnerRef.clear();
198 }
199
200 void disposeAndClear()
201 {
202 // hold it alive for the lifetime of this method
203 ::rtl::Reference<reference_type> aTmp(m_rInnerRef);
24
Calling copy constructor for 'Reference<AbstractMorphDlg>'
204 m_rInnerRef.clear(); // we should use some 'swap' method ideally ;-)
205 if (aTmp.get()) {
206 aTmp->disposeOnce();
207 }
208 }
209
210 /** Needed to place VclPtr's into STL collection.
211 */
212 bool operator< (const VclPtr<reference_type> & handle) const
213 {
214 return (m_rInnerRef < handle.m_rInnerRef);
215 }
216}; // class VclPtr
217
218template<typename T1, typename T2>
219inline bool operator ==(VclPtr<T1> const & p1, VclPtr<T2> const & p2) {
220 return p1.get() == p2.get();
221}
222
223template<typename T> inline bool operator ==(VclPtr<T> const & p1, T const * p2)
224{
225 return p1.get() == p2;
226}
227
228template<typename T> inline bool operator ==(VclPtr<T> const & p1, T * p2) {
229 return p1.get() == p2;
230}
231
232template<typename T> inline bool operator ==(T const * p1, VclPtr<T> const & p2)
233{
234 return p1 == p2.get();
235}
236
237template<typename T> inline bool operator ==(T * p1, VclPtr<T> const & p2) {
238 return p1 == p2.get();
239}
240
241template<typename T1, typename T2>
242inline bool operator !=(VclPtr<T1> const & p1, VclPtr<T2> const & p2) {
243 return !(p1 == p2);
244}
245
246template<typename T> inline bool operator !=(VclPtr<T> const & p1, T const * p2)
247{
248 return !(p1 == p2);
249}
250
251template<typename T> inline bool operator !=(VclPtr<T> const & p1, T * p2) {
252 return !(p1 == p2);
253}
254
255template<typename T> inline bool operator !=(T const * p1, VclPtr<T> const & p2)
256{
257 return !(p1 == p2);
258}
259
260template<typename T> inline bool operator !=(T * p1, VclPtr<T> const & p2) {
261 return !(p1 == p2);
262}
263
264/**
265 * A construction helper for a temporary VclPtr. Since VclPtr types
266 * are created with a reference-count of one - to help fit into
267 * the existing code-flow; this helps us to construct them easily.
268 * see also VclPtr::Create and ScopedVclPtr
269 *
270 * For more details on the design please see vcl/README.lifecycle
271 *
272 * @param reference_type must be a subclass of vcl::Window
273 */
274template <class reference_type>
275class SAL_WARN_UNUSED__attribute__((warn_unused)) VclPtrInstance final : public VclPtr<reference_type>
276{
277public:
278 template<typename... Arg> VclPtrInstance(Arg &&... arg)
279 : VclPtr<reference_type>( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE )
280 {
281 }
282
283 /**
284 * Override and disallow this, to prevent people accidentally calling it and actually
285 * getting VclPtr::Create and getting a naked VclPtr<> instance
286 */
287 template<typename... Arg> static VclPtrInstance< reference_type > Create(Arg &&... ) = delete;
288};
289
290template <class reference_type>
291class ScopedVclPtr : public VclPtr<reference_type>
292{
293public:
294 /** Constructor...
295 */
296 ScopedVclPtr()
297 : VclPtr<reference_type>()
298 {}
299
300 /** Constructor
301 */
302 ScopedVclPtr (reference_type * pBody)
303 : VclPtr<reference_type>(pBody)
304 {}
305
306 /** Copy constructor...
307 */
308 ScopedVclPtr (const VclPtr<reference_type> & handle)
309 : VclPtr<reference_type>(handle)
5
Calling implicit copy constructor for 'VclPtr<AbstractMorphDlg>'
6
Calling copy constructor for 'Reference<AbstractMorphDlg>'
9
Returning from copy constructor for 'Reference<AbstractMorphDlg>'
10
Returning from copy constructor for 'VclPtr<AbstractMorphDlg>'
310 {}
311
312 /**
313 Assignment that releases the last reference.
314 */
315 void disposeAndReset(reference_type *pBody)
316 {
317 if (pBody != this->get()) {
318 VclPtr<reference_type>::disposeAndClear();
319 VclPtr<reference_type>::set(pBody);
320 }
321 }
322
323 /**
324 Assignment that releases the last reference.
325 */
326 ScopedVclPtr<reference_type>& operator = (reference_type * pBody)
327 {
328 disposeAndReset(pBody);
329 return *this;
330 }
331
332 /** Up-casting conversion constructor: Copies interface reference.
333
334 Does not work for up-casts to ambiguous bases. For the special case of
335 up-casting to Reference< XInterface >, see the corresponding conversion
336 operator.
337
338 @param rRef another reference
339 */
340 template< class derived_type >
341 ScopedVclPtr(
342 const VclPtr< derived_type > & rRef,
343 typename std::enable_if<
344 std::is_base_of<reference_type, derived_type>::value, int>::type
345 = 0 )
346 : VclPtr<reference_type>( rRef )
347 {
348 }
349
350 /** Up-casting assignment operator.
351
352 Does not work for up-casts to ambiguous bases.
353
354 @param rRef another VclPtr
355 */
356 template<typename derived_type>
357 typename std::enable_if<
358 std::is_base_of<reference_type, derived_type>::value,
359 ScopedVclPtr &>::type
360 operator =(VclPtr<derived_type> const & rRef)
361 {
362 disposeAndReset(rRef.get());
363 return *this;
364 }
365
366 /**
367 * Override and disallow this, to prevent people accidentally calling it and actually
368 * getting VclPtr::Create and getting a naked VclPtr<> instance
369 */
370 template<typename... Arg> static ScopedVclPtr< reference_type > Create(Arg &&... ) = delete;
371
372 ~ScopedVclPtr()
373 {
374 VclPtr<reference_type>::disposeAndClear();
23
Calling 'VclPtr::disposeAndClear'
375 assert(VclPtr<reference_type>::get() == nullptr)(static_cast <bool> (VclPtr<reference_type>::get(
) == nullptr) ? void (0) : __assert_fail ("VclPtr<reference_type>::get() == nullptr"
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 375, __extension__ __PRETTY_FUNCTION__))
; // make sure there are no lingering references
376 }
377
378private:
379 // Most likely we don't want this default copy-constructor.
380 ScopedVclPtr (const ScopedVclPtr<reference_type> &) = delete;
381 // And certainly we don't want a default assignment operator.
382 ScopedVclPtr<reference_type>& operator = (const ScopedVclPtr<reference_type> &) = delete;
383 // And disallow reset as that doesn't call disposeAndClear on the original reference
384 void reset() = delete;
385 void reset(reference_type *pBody) = delete;
386
387protected:
388 ScopedVclPtr (reference_type * pBody, __sal_NoAcquire)
389 : VclPtr<reference_type>(pBody, SAL_NO_ACQUIRE)
390 {}
391};
392
393/**
394 * A construction helper for ScopedVclPtr. Since VclPtr types are created
395 * with a reference-count of one - to help fit into the existing
396 * code-flow; this helps us to construct them easily.
397 *
398 * For more details on the design please see vcl/README.lifecycle
399 *
400 * @param reference_type must be a subclass of vcl::Window
401 */
402#if defined _MSC_VER
403#pragma warning(push)
404#pragma warning(disable: 4521) // " multiple copy constructors specified"
405#endif
406template <class reference_type>
407class SAL_WARN_UNUSED__attribute__((warn_unused)) ScopedVclPtrInstance final : public ScopedVclPtr<reference_type>
408{
409public:
410 template<typename... Arg> ScopedVclPtrInstance(Arg &&... arg)
411 : ScopedVclPtr<reference_type>( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE )
412 {
413 }
414
415 /**
416 * Override and disallow this, to prevent people accidentally calling it and actually
417 * getting VclPtr::Create and getting a naked VclPtr<> instance
418 */
419 template<typename... Arg> static ScopedVclPtrInstance< reference_type > Create(Arg &&...) = delete;
420
421private:
422 // Prevent the above perfect forwarding ctor from hijacking (accidental)
423 // attempts at ScopedVclPtrInstance copy construction (where the hijacking
424 // would typically lead to somewhat obscure error messages); both non-const
425 // and const variants are needed here, as the ScopedVclPtr base class has a
426 // const--variant copy ctor, so the implicitly declared copy ctor for
427 // ScopedVclPtrInstance would also be the const variant, so non-const copy
428 // construction attempts would be hijacked by the perfect forwarding ctor;
429 // but if we only declared a non-const variant here, the const variant would
430 // no longer be implicitly declared (as there would already be an explicitly
431 // declared copy ctor), so const copy construction attempts would then be
432 // hijacked by the perfect forwarding ctor:
433 ScopedVclPtrInstance(ScopedVclPtrInstance &) = delete;
434 ScopedVclPtrInstance(ScopedVclPtrInstance const &) = delete;
435};
436#if defined _MSC_VER
437#pragma warning(pop)
438#endif
439
440#endif // INCLUDED_VCL_PTR_HXX
441
442/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

/home/maarten/src/libreoffice/core/include/rtl/ref.hxx

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#ifndef INCLUDED_RTL_REF_HXX
21#define INCLUDED_RTL_REF_HXX
22
23#include "sal/config.h"
24
25#include <cassert>
26#include <cstddef>
27#include <functional>
28#ifdef LIBO_INTERNAL_ONLY1
29#include <type_traits>
30#endif
31
32#include "sal/types.h"
33
34namespace rtl
35{
36
37/** Template reference class for reference type.
38*/
39template <class reference_type>
40class Reference
41{
42 /** The <b>reference_type</b> body pointer.
43 */
44 reference_type * m_pBody;
45
46
47public:
48 /** Constructor...
49 */
50 Reference()
51 : m_pBody (NULL__null)
52 {}
53
54
55 /** Constructor...
56 */
57 Reference (reference_type * pBody, __sal_NoAcquire)
58 : m_pBody (pBody)
59 {
60 }
61
62 /** Constructor...
63 */
64 Reference (reference_type * pBody)
65 : m_pBody (pBody)
66 {
67 if (m_pBody)
68 m_pBody->acquire();
69 }
70
71 /** Copy constructor...
72 */
73 Reference (const Reference<reference_type> & handle)
74 : m_pBody (handle.m_pBody)
75 {
76 if (m_pBody
24.1
Field 'm_pBody' is non-null
24.1
Field 'm_pBody' is non-null
24.1
Field 'm_pBody' is non-null
24.1
Field 'm_pBody' is non-null
)
7
Assuming field 'm_pBody' is non-null
8
Taking true branch
25
Taking true branch
77 m_pBody->acquire();
26
Use of memory after it is freed
78 }
79
80#ifdef LIBO_INTERNAL_ONLY1
81 /** Move constructor...
82 */
83 Reference (Reference<reference_type> && handle) noexcept
84 : m_pBody (handle.m_pBody)
85 {
86 handle.m_pBody = nullptr;
87 }
88#endif
89
90#if defined LIBO_INTERNAL_ONLY1
91 /** Up-casting conversion constructor: Copies interface reference.
92
93 Does not work for up-casts to ambiguous bases.
94
95 @param rRef another reference
96 */
97 template< class derived_type >
98 inline Reference(
99 const Reference< derived_type > & rRef,
100 std::enable_if_t<std::is_base_of_v<reference_type, derived_type>, int> = 0 )
101 : m_pBody (rRef.get())
102 {
103 if (m_pBody)
104 m_pBody->acquire();
105 }
106#endif
107
108 /** Destructor...
109 */
110 ~Reference() COVERITY_NOEXCEPT_FALSE
111 {
112 if (m_pBody
13.1
Field 'm_pBody' is non-null
13.1
Field 'm_pBody' is non-null
13.1
Field 'm_pBody' is non-null
13.1
Field 'm_pBody' is non-null
)
14
Taking true branch
113 m_pBody->release();
15
Calling 'VclReferenceBase::release'
19
Returning; memory was released
114 }
115
116 /** Set...
117 Similar to assignment.
118 */
119 Reference<reference_type> &
120 SAL_CALL set (reference_type * pBody)
121 {
122 if (pBody)
123 pBody->acquire();
124 reference_type * const pOld = m_pBody;
125 m_pBody = pBody;
126 if (pOld)
127 pOld->release();
128 return *this;
129 }
130
131 /** Assignment.
132 Unbinds this instance from its body (if bound) and
133 bind it to the body represented by the handle.
134 */
135 Reference<reference_type> &
136 SAL_CALL operator= (const Reference<reference_type> & handle)
137 {
138 return set( handle.m_pBody );
139 }
140
141#ifdef LIBO_INTERNAL_ONLY1
142 /** Assignment.
143 * Unbinds this instance from its body (if bound),
144 * bind it to the body represented by the handle, and
145 * set the body represented by the handle to nullptr.
146 */
147 Reference<reference_type> &
148 operator= (Reference<reference_type> && handle)
149 {
150 // self-movement guts ourself
151 if (m_pBody)
152 m_pBody->release();
153 m_pBody = handle.m_pBody;
154 handle.m_pBody = nullptr;
155 return *this;
156 }
157#endif
158
159 /** Assignment...
160 */
161 Reference<reference_type> &
162 SAL_CALL operator= (reference_type * pBody)
163 {
164 return set( pBody );
165 }
166
167 /** Unbind the body from this handle.
168 Note that for a handle representing a large body,
169 "handle.clear().set(new body());" _might_
170 perform a little bit better than "handle.set(new body());",
171 since in the second case two large objects exist in memory
172 (the old body and the new body).
173 */
174 Reference<reference_type> & SAL_CALL clear()
175 {
176 if (m_pBody)
177 {
178 reference_type * const pOld = m_pBody;
179 m_pBody = NULL__null;
180 pOld->release();
181 }
182 return *this;
183 }
184
185
186 /** Get the body. Can be used instead of operator->().
187 I.e. handle->someBodyOp() and handle.get()->someBodyOp()
188 are the same.
189 */
190 reference_type * SAL_CALL get() const
191 {
192 return m_pBody;
193 }
194
195
196 /** Probably most common used: handle->someBodyOp().
197 */
198 reference_type * SAL_CALL operator->() const
199 {
200 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 200, __extension__ __PRETTY_FUNCTION__))
;
201 return m_pBody;
202 }
203
204
205 /** Allows (*handle).someBodyOp().
206 */
207 reference_type & SAL_CALL operator*() const
208 {
209 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 209, __extension__ __PRETTY_FUNCTION__))
;
210 return *m_pBody;
211 }
212
213
214 /** Returns True if the handle does point to a valid body.
215 */
216 bool SAL_CALL is() const
217 {
218 return (m_pBody != NULL__null);
219 }
220
221#if defined LIBO_INTERNAL_ONLY1
222 /** Returns True if the handle does point to a valid body.
223 */
224 explicit operator bool() const
225 {
226 return is();
227 }
228#endif
229
230 /** Returns True if this points to pBody.
231 */
232 bool SAL_CALL operator== (const reference_type * pBody) const
233 {
234 return (m_pBody == pBody);
235 }
236
237
238 /** Returns True if handle points to the same body.
239 */
240 bool
241 SAL_CALL operator== (const Reference<reference_type> & handle) const
242 {
243 return (m_pBody == handle.m_pBody);
244 }
245
246
247 /** Needed to place References into STL collection.
248 */
249 bool
250 SAL_CALL operator!= (const Reference<reference_type> & handle) const
251 {
252 return (m_pBody != handle.m_pBody);
253 }
254
255
256 /** Needed to place References into STL collection.
257 */
258 bool
259 SAL_CALL operator< (const Reference<reference_type> & handle) const
260 {
261 return (m_pBody < handle.m_pBody);
262 }
263
264
265 /** Needed to place References into STL collection.
266 */
267 bool
268 SAL_CALL operator> (const Reference<reference_type> & handle) const
269 {
270 return (m_pBody > handle.m_pBody);
271 }
272};
273
274} // namespace rtl
275
276#if defined LIBO_INTERNAL_ONLY1
277namespace std
278{
279
280/// @cond INTERNAL
281/**
282 Make rtl::Reference hashable by default for use in STL containers.
283
284 @since LibreOffice 6.3
285*/
286template<typename T>
287struct hash<::rtl::Reference<T>>
288{
289 std::size_t operator()(::rtl::Reference<T> const & s) const
290 { return std::size_t(s.get()); }
291};
292/// @endcond
293
294}
295
296#endif
297
298#endif /* ! INCLUDED_RTL_REF_HXX */
299
300/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

/home/maarten/src/libreoffice/core/include/vcl/vclreferencebase.hxx

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19#ifndef INCLUDED_VCL_Reference_HXX
20#define INCLUDED_VCL_Reference_HXX
21
22#include <vcl/dllapi.h>
23#include <osl/interlck.h>
24
25class VCL_DLLPUBLIC__attribute__ ((visibility("default"))) VclReferenceBase
26{
27 mutable oslInterlockedCount mnRefCnt;
28
29 template<typename T> friend class VclPtr;
30
31public:
32 void acquire() const
33 {
34 osl_atomic_increment(&mnRefCnt)__sync_add_and_fetch((&mnRefCnt), 1);
35 }
36
37 void release() const
38 {
39 if (osl_atomic_decrement(&mnRefCnt)__sync_sub_and_fetch((&mnRefCnt), 1) == 0)
16
Assuming the condition is true
17
Taking true branch
40 delete this;
18
Memory is released
41 }
42#ifdef DBG_UTIL
43#ifndef _WIN32
44 sal_Int32 getRefCount() const { return mnRefCnt; }
45#endif
46#endif
47
48
49private:
50 VclReferenceBase(const VclReferenceBase&) = delete;
51 VclReferenceBase& operator=(const VclReferenceBase&) = delete;
52
53 bool mbDisposed : 1;
54
55protected:
56 VclReferenceBase();
57protected:
58 virtual ~VclReferenceBase();
59
60protected:
61 virtual void dispose();
62
63public:
64 void disposeOnce();
65 bool isDisposed() const { return mbDisposed; }
66
67};
68#endif