Bug Summary

File:home/maarten/src/libreoffice/core/include/rtl/ref.hxx
Warning:line 192, column 9
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 propbrw.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 -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 EXCEPTIONS_ON -D LIBO_INTERNAL_ONLY -I /home/maarten/src/libreoffice/core/external/boost/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/boost -I /home/maarten/src/libreoffice/core/basctl/inc -I /home/maarten/src/libreoffice/core/basctl/sdi -I /home/maarten/src/libreoffice/core/basctl/source/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/workdir/SdiTarget/basctl/sdi -I /home/maarten/src/libreoffice/core/workdir/CustomTarget/officecfg/registry -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/udkapi/normal -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/offapi/normal -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/basctl/source/dlged/propbrw.cxx

/home/maarten/src/libreoffice/core/basctl/source/dlged/propbrw.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
21#include <propbrw.hxx>
22#include <basidesh.hxx>
23#include <dlgedobj.hxx>
24#include <iderid.hxx>
25#include <baside3.hxx>
26#include <strings.hrc>
27
28#include <strings.hxx>
29
30#include <com/sun/star/frame/Frame.hpp>
31#include <com/sun/star/inspection/XObjectInspector.hpp>
32#include <com/sun/star/lang/XServiceInfo.hpp>
33#include <comphelper/types.hxx>
34#include <comphelper/processfactory.hxx>
35#include <cppuhelper/component_context.hxx>
36#include <tools/debug.hxx>
37#include <svx/svditer.hxx>
38#include <svx/svdview.hxx>
39#include <toolkit/helper/vclunohelper.hxx>
40#include <tools/diagnose_ex.h>
41#include <vcl/layout.hxx>
42#include <vcl/stdtext.hxx>
43#include <vcl/weld.hxx>
44
45#include <memory>
46
47namespace basctl
48{
49
50using namespace ::com::sun::star;
51using namespace ::com::sun::star::uno;
52using namespace ::com::sun::star::lang;
53using namespace ::com::sun::star::frame;
54using namespace ::com::sun::star::beans;
55using namespace ::com::sun::star::container;
56using namespace ::comphelper;
57
58
59void PropBrw::Update( const SfxViewShell* pShell )
60{
61 Shell const* pIdeShell = dynamic_cast<Shell const*>(pShell);
62 OSL_ENSURE( pIdeShell || !pShell, "PropBrw::Update: invalid shell!" )do { if (true && (!(pIdeShell || !pShell))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/basctl/source/dlged/propbrw.cxx"
":" "62" ": "), "%s", "PropBrw::Update: invalid shell!"); } }
while (false);
63 if (pIdeShell)
64 ImplUpdate(pIdeShell->GetCurrentDocument(), pIdeShell->GetCurDlgView());
65 else if (pShell)
66 ImplUpdate(nullptr, pShell->GetDrawView());
67 else
68 ImplUpdate(nullptr, nullptr);
69}
70
71
72namespace
73{
74
75const long STD_WIN_SIZE_X = 300;
76const long STD_WIN_SIZE_Y = 350;
77
78const long STD_MIN_SIZE_X = 250;
79const long STD_MIN_SIZE_Y = 250;
80
81const long WIN_BORDER = 2;
82
83} // namespace
84
85PropBrw::PropBrw (DialogWindowLayout& rLayout_):
86 DockingWindow(&rLayout_),
87 m_xContentArea(VclPtr<VclVBox>::Create(this)),
88 m_bInitialStateChange(true),
89 m_xContextDocument(SfxViewShell::Current() ? SfxViewShell::Current()->GetCurrentDocument() : Reference<XModel>()),
90 pView(nullptr)
91{
92 Size aPropWinSize(STD_WIN_SIZE_X,STD_WIN_SIZE_Y);
93 SetMinOutputSizePixel(Size(STD_MIN_SIZE_X,STD_MIN_SIZE_Y));
94 SetOutputSizePixel(aPropWinSize);
95
96 // turn off WB_CLIPCHILDREN otherwise the bg won't extend "under"
97 // transparent children of the widget
98 m_xContentArea->SetControlBackground(m_xContentArea->GetSettings().GetStyleSettings().GetWindowColor());
99 m_xContentArea->SetBackground(m_xContentArea->GetControlBackground());
100 m_xContentArea->SetStyle(m_xContentArea->GetStyle() & ~WB_CLIPCHILDREN);
101 m_xContentArea->Show();
102
103 try
104 {
105 // create a frame wrapper for myself
106 m_xMeAsFrame = frame::Frame::create( comphelper::getProcessComponentContext() );
107 m_xMeAsFrame->initialize(VCLUnoHelper::GetInterface(m_xContentArea));
108 m_xMeAsFrame->setName( "form property browser" ); // change name!
109 }
110 catch (const Exception&)
111 {
112 OSL_FAIL("PropBrw::PropBrw: could not create/initialize my frame!")do { if (true && (((sal_Bool)1))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/basctl/source/dlged/propbrw.cxx"
":" "112" ": "), "%s", "PropBrw::PropBrw: could not create/initialize my frame!"
); } } while (false);
113 m_xMeAsFrame.clear();
114 }
115
116 ImplReCreateController();
117}
118
119
120void PropBrw::ImplReCreateController()
121{
122 OSL_PRECOND( m_xMeAsFrame.is(), "PropBrw::ImplCreateController: no frame for myself!" )do { if (true && (!(m_xMeAsFrame.is()))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/basctl/source/dlged/propbrw.cxx"
":" "122" ": "), "%s", "PropBrw::ImplCreateController: no frame for myself!"
); } } while (false);
123 if ( !m_xMeAsFrame.is() )
124 return;
125
126 if ( m_xBrowserController.is() )
127 ImplDestroyController();
128
129 try
130 {
131 Reference< XComponentContext > xOwnContext = comphelper::getProcessComponentContext();
132
133 // a ComponentContext for the
134 ::cppu::ContextEntry_Init aHandlerContextInfo[] =
135 {
136 ::cppu::ContextEntry_Init( "DialogParentWindow", Any(VCLUnoHelper::GetInterface(this))),
137 ::cppu::ContextEntry_Init( "ContextDocument", Any( m_xContextDocument ) )
138 };
139 Reference< XComponentContext > xInspectorContext(
140 ::cppu::createComponentContext( aHandlerContextInfo, SAL_N_ELEMENTS( aHandlerContextInfo )(sizeof(sal_n_array_size(aHandlerContextInfo))), xOwnContext ) );
141
142 // create a property browser controller
143 Reference< XMultiComponentFactory > xFactory( xInspectorContext->getServiceManager(), UNO_SET_THROW );
144 static const char s_sControllerServiceName[] = "com.sun.star.awt.PropertyBrowserController";
145 m_xBrowserController.set( xFactory->createInstanceWithContext( s_sControllerServiceName, xInspectorContext ), UNO_QUERY );
146 if ( !m_xBrowserController.is() )
147 {
148 vcl::Window* pWin = GetParent();
149 ShowServiceNotAvailableError(pWin ? pWin->GetFrameWeld() : nullptr, s_sControllerServiceName, true);
150 }
151 else
152 {
153 Reference< XController > xAsXController( m_xBrowserController, UNO_QUERY );
154 DBG_ASSERT(xAsXController.is(), "PropBrw::PropBrw: invalid controller object!")do { if (true && (!(xAsXController.is()))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.tools"), ("/home/maarten/src/libreoffice/core/basctl/source/dlged/propbrw.cxx"
":" "154" ": "), "%s", "PropBrw::PropBrw: invalid controller object!"
); } } while (false);
155 if (!xAsXController.is())
156 {
157 ::comphelper::disposeComponent(m_xBrowserController);
158 m_xBrowserController.clear();
159 }
160 else
161 {
162 xAsXController->attachFrame( Reference<XFrame>(m_xMeAsFrame,UNO_QUERY_THROW) );
163 }
164 }
165
166 Point aPropWinPos( WIN_BORDER, WIN_BORDER );
167 Size aPropWinSize(STD_WIN_SIZE_X,STD_WIN_SIZE_Y);
168 aPropWinSize.AdjustWidth( -(2*WIN_BORDER) );
169 aPropWinSize.AdjustHeight( -(2*WIN_BORDER) );
170
171 VclContainer::setLayoutAllocation(*m_xContentArea, aPropWinPos, aPropWinSize);
172 m_xContentArea->Show();
173 }
174 catch (const Exception&)
175 {
176 OSL_FAIL("PropBrw::PropBrw: could not create/initialize the browser controller!")do { if (true && (((sal_Bool)1))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/basctl/source/dlged/propbrw.cxx"
":" "176" ": "), "%s", "PropBrw::PropBrw: could not create/initialize the browser controller!"
); } } while (false);
177 try
178 {
179 ::comphelper::disposeComponent(m_xBrowserController);
180 }
181 catch(const Exception&)
182 {
183 }
184
185 m_xBrowserController.clear();
186 }
187 Resize();
188}
189
190PropBrw::~PropBrw()
191{
192 disposeOnce();
193}
194
195void PropBrw::dispose()
196{
197 if ( m_xBrowserController.is() )
1
Taking false branch
→
198 ImplDestroyController();
199 m_xContentArea.disposeAndClear();
2
←
Calling 'VclPtr::disposeAndClear'
→
200 DockingWindow::dispose();
201}
202
203
204void PropBrw::ImplDestroyController()
205{
206 implSetNewObject( Reference< XPropertySet >() );
207
208 if ( m_xMeAsFrame.is() )
209 m_xMeAsFrame->setComponent( nullptr, nullptr );
210
211 Reference< XController > xAsXController( m_xBrowserController, UNO_QUERY );
212 if ( xAsXController.is() )
213 xAsXController->attachFrame( nullptr );
214
215 try
216 {
217 ::comphelper::disposeComponent( m_xBrowserController );
218 }
219 catch( const Exception& )
220 {
221 DBG_UNHANDLED_EXCEPTION("basctl")DbgUnhandledException( DbgGetCaughtException(), __func__, "/home/maarten/src/libreoffice/core/basctl/source/dlged/propbrw.cxx"
":" "221" ": ", "basctl" );;
222 }
223
224 m_xBrowserController.clear();
225}
226
227bool PropBrw::Close()
228{
229 ImplDestroyController();
230
231 if( IsRollUp() )
232 RollDown();
233
234 return DockingWindow::Close();
235}
236
237Sequence< Reference< XInterface > >
238 PropBrw::CreateMultiSelectionSequence( const SdrMarkList& _rMarkList )
239{
240 Sequence< Reference< XInterface > > aSeq;
241 InterfaceArray aInterfaces;
242
243 const size_t nMarkCount = _rMarkList.GetMarkCount();
244 for( size_t i = 0 ; i < nMarkCount ; ++i )
245 {
246 SdrObject* pCurrent = _rMarkList.GetMark(i)->GetMarkedSdrObj();
247
248 std::unique_ptr<SdrObjListIter> pGroupIterator;
249 if (pCurrent->IsGroupObject())
250 {
251 pGroupIterator.reset(new SdrObjListIter(pCurrent->GetSubList()));
252 pCurrent = pGroupIterator->IsMore() ? pGroupIterator->Next() : nullptr;
253 }
254
255 while (pCurrent)
256 {
257 if (DlgEdObj* pDlgEdObj = dynamic_cast<DlgEdObj*>(pCurrent))
258 {
259 Reference< XInterface > xControlInterface(pDlgEdObj->GetUnoControlModel(), UNO_QUERY);
260 if (xControlInterface.is())
261 aInterfaces.push_back(xControlInterface);
262 }
263
264 // next element
265 pCurrent = pGroupIterator && pGroupIterator->IsMore() ? pGroupIterator->Next() : nullptr;
266 }
267 }
268
269 sal_Int32 nCount = aInterfaces.size();
270 aSeq.realloc( nCount );
271 Reference< XInterface >* pInterfaces = aSeq.getArray();
272 for( sal_Int32 i = 0 ; i < nCount ; i++ )
273 pInterfaces[i] = aInterfaces[i];
274
275 return aSeq;
276}
277
278
279void PropBrw::implSetNewObjectSequence
280 ( const Sequence< Reference< XInterface > >& _rObjectSeq )
281{
282 Reference< inspection::XObjectInspector > xObjectInspector(m_xBrowserController, UNO_QUERY);
283 if ( xObjectInspector.is() )
284 {
285 xObjectInspector->inspect( _rObjectSeq );
286
287 OUString aText = IDEResId(RID_STR_BRWTITLE_PROPERTIESreinterpret_cast<char const *>("RID_STR_BRWTITLE_PROPERTIES"
"\004" u8"Properties: "))
288 + IDEResId(RID_STR_BRWTITLE_MULTISELECTreinterpret_cast<char const *>("RID_STR_BRWTITLE_MULTISELECT"
"\004" u8"Multiselection"));
289 SetText( aText );
290 }
291}
292
293
294void PropBrw::implSetNewObject( const Reference< XPropertySet >& _rxObject )
295{
296 if ( m_xBrowserController.is() )
297 {
298 m_xBrowserController->setPropertyValue( "IntrospectedObject",
299 Any( _rxObject )
300 );
301
302 // set the new title according to the selected object
303 SetText( GetHeadlineName( _rxObject ) );
304 }
305}
306
307
308OUString PropBrw::GetHeadlineName( const Reference< XPropertySet >& _rxObject )
309{
310 OUString aName;
311 Reference< lang::XServiceInfo > xServiceInfo( _rxObject, UNO_QUERY );
312
313 if (xServiceInfo.is()) // single selection
314 {
315 OUString sResId;
316 aName = IDEResId(RID_STR_BRWTITLE_PROPERTIESreinterpret_cast<char const *>("RID_STR_BRWTITLE_PROPERTIES"
"\004" u8"Properties: "));
317
318 if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlDialogModel" ) )
319 {
320 sResId = RID_STR_CLASS_DIALOG"Dialog";
321 }
322 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlButtonModel" ) )
323 {
324 sResId = RID_STR_CLASS_BUTTON"CommandButton";
325 }
326 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlRadioButtonModel" ) )
327 {
328 sResId = RID_STR_CLASS_RADIOBUTTON"OptionButton";
329 }
330 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlCheckBoxModel" ) )
331 {
332 sResId = RID_STR_CLASS_CHECKBOX"CheckBox";
333 }
334 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlListBoxModel" ) )
335 {
336 sResId = RID_STR_CLASS_LISTBOX"ListBox";
337 }
338 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlComboBoxModel" ) )
339 {
340 sResId = RID_STR_CLASS_COMBOBOX"ComboBox";
341 }
342 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlGroupBoxModel" ) )
343 {
344 sResId = RID_STR_CLASS_GROUPBOX"FrameControl";
345 }
346 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlEditModel" ) )
347 {
348 sResId = RID_STR_CLASS_EDIT"TextField";
349 }
350 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlFixedTextModel" ) )
351 {
352 sResId = RID_STR_CLASS_FIXEDTEXT"Label";
353 }
354 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlImageControlModel" ) )
355 {
356 sResId = RID_STR_CLASS_IMAGECONTROL"ImageControl";
357 }
358 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlProgressBarModel" ) )
359 {
360 sResId = RID_STR_CLASS_PROGRESSBAR"ProgressBar";
361 }
362 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlScrollBarModel" ) )
363 {
364 sResId = RID_STR_CLASS_SCROLLBAR"ScrollBar";
365 }
366 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlFixedLineModel" ) )
367 {
368 sResId = RID_STR_CLASS_FIXEDLINE"FixedLine";
369 }
370 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlDateFieldModel" ) )
371 {
372 sResId = RID_STR_CLASS_DATEFIELD"DateField";
373 }
374 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlTimeFieldModel" ) )
375 {
376 sResId = RID_STR_CLASS_TIMEFIELD"TimeField";
377 }
378 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlNumericFieldModel" ) )
379 {
380 sResId = RID_STR_CLASS_NUMERICFIELD"NumericField";
381 }
382 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlCurrencyFieldModel" ) )
383 {
384 sResId = RID_STR_CLASS_CURRENCYFIELD"CurrencyField";
385 }
386 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlFormattedFieldModel" ) )
387 {
388 sResId = RID_STR_CLASS_FORMATTEDFIELD"FormattedField";
389 }
390 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlPatternFieldModel" ) )
391 {
392 sResId = RID_STR_CLASS_PATTERNFIELD"PatternField";
393 }
394 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlFileControlModel" ) )
395 {
396 sResId = RID_STR_CLASS_FILECONTROL"FileControl";
397 }
398 else if ( xServiceInfo->supportsService( "com.sun.star.awt.tree.TreeControlModel" ) )
399 {
400 sResId = RID_STR_CLASS_TREECONTROL"TreeControl";
401 }
402 else if ( xServiceInfo->supportsService( "com.sun.star.awt.grid.UnoControlGridModel" ) )
403 {
404 sResId = RID_STR_CLASS_GRIDCONTROL"GridControl";
405 }
406 else if ( xServiceInfo->supportsService( "com.sun.star.awt.UnoControlFixedHyperlinkModel" ) )
407 {
408 sResId = RID_STR_CLASS_HYPERLINKCONTROL"HyperlinkControl";
409 }
410 else
411 {
412 sResId = RID_STR_CLASS_CONTROL"Control";
413 }
414
415 if (!sResId.isEmpty())
416 {
417 aName += sResId;
418 }
419 }
420 else if (!_rxObject.is()) // no properties
421 {
422 aName = IDEResId(RID_STR_BRWTITLE_NO_PROPERTIESreinterpret_cast<char const *>("RID_STR_BRWTITLE_NO_PROPERTIES"
"\004" u8"No Control marked"));
423 }
424
425 return aName;
426}
427
428void PropBrw::ImplUpdate( const Reference< XModel >& _rxContextDocument, SdrView* pNewView )
429{
430 Reference< XModel > xContextDocument( _rxContextDocument );
431
432 // if we should simply "empty" ourself, assume the context document didn't change
433 if ( !pNewView )
434 {
435 OSL_ENSURE( !_rxContextDocument.is(), "PropBrw::ImplUpdate: no view, but a document?!" )do { if (true && (!(!_rxContextDocument.is()))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/basctl/source/dlged/propbrw.cxx"
":" "435" ": "), "%s", "PropBrw::ImplUpdate: no view, but a document?!"
); } } while (false);
436 xContextDocument = m_xContextDocument;
437 }
438
439 if ( xContextDocument != m_xContextDocument )
440 {
441 m_xContextDocument = xContextDocument;
442 ImplReCreateController();
443 }
444
445 try
446 {
447 if ( pView )
448 {
449 EndListening( *(pView->GetModel()) );
450 pView = nullptr;
451 }
452
453 if ( !pNewView )
454 return;
455
456 pView = pNewView;
457
458 // set focus on initialization
459 if ( m_bInitialStateChange )
460 {
461 m_xContentArea->GrabFocus();
462 m_bInitialStateChange = false;
463 }
464
465 const SdrMarkList& rMarkList = pView->GetMarkedObjectList();
466 const size_t nMarkCount = rMarkList.GetMarkCount();
467
468 if ( nMarkCount == 0 )
469 {
470 EndListening( *(pView->GetModel()) );
471 pView = nullptr;
472 implSetNewObject( nullptr );
473 return;
474 }
475
476 Reference< XPropertySet > xNewObject;
477 Sequence< Reference< XInterface > > aNewObjects;
478 if ( nMarkCount == 1 )
479 {
480 if (DlgEdObj* pDlgEdObj = dynamic_cast<DlgEdObj*>(rMarkList.GetMark(0)->GetMarkedSdrObj()))
481 {
482 if ( pDlgEdObj->IsGroupObject() ) // group object
483 aNewObjects = CreateMultiSelectionSequence( rMarkList );
484 else // single selection
485 xNewObject.set(pDlgEdObj->GetUnoControlModel(), css::uno::UNO_QUERY);
486 }
487 }
488 else if ( nMarkCount > 1 ) // multiple selection
489 {
490 aNewObjects = CreateMultiSelectionSequence( rMarkList );
491 }
492
493 if ( aNewObjects.hasElements() )
494 implSetNewObjectSequence( aNewObjects );
495 else
496 implSetNewObject( xNewObject );
497
498 StartListening( *(pView->GetModel()) );
499 }
500 catch ( const PropertyVetoException& ) { /* silence */ }
501 catch ( const Exception& )
502 {
503 DBG_UNHANDLED_EXCEPTION("basctl")DbgUnhandledException( DbgGetCaughtException(), __func__, "/home/maarten/src/libreoffice/core/basctl/source/dlged/propbrw.cxx"
":" "503" ": ", "basctl" );;
504 }
505}
506
507} // namespace basctl
508
509/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx

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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);
3
←
Calling copy constructor for 'Reference<vcl::Window>'
→
6
←
Returning from copy constructor for 'Reference<vcl::Window>'
→
204 m_rInnerRef.clear(); // we should use some 'swap' method ideally ;-)
7
←
Calling 'Reference::clear'
→
14
←
Returning; memory was released
→
205 if (aTmp.get()) {
15
←
Calling 'Reference::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)
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();
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)
4
←
Assuming field 'm_pBody' is non-null
→
5
←
Taking true branch
→
77 m_pBody->acquire();
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)
113 m_pBody->release();
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
7.1
Field 'm_pBody' is non-null
7.1
Field 'm_pBody' is non-null
7.1
Field 'm_pBody' is non-null
7.1
Field 'm_pBody' is non-null
)
8
←
Taking true branch
→
177 {
178 reference_type * const pOld = m_pBody;
179 m_pBody = NULL__null;
180 pOld->release();
9
←
Calling 'VclReferenceBase::release'
→
13
←
Returning; memory was released
→
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;
16
←
Use of memory after it is freed
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)
10
←
Assuming the condition is true
→
11
←
Taking true branch
→
40 delete this;
12
←
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