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 tbxitem.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 -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 SFX2_DLLIMPLEMENTATION -D ENABLE_CUPS -D SYSTEM_LIBXML -D EXCEPTIONS_ON -D LIBO_INTERNAL_ONLY -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/liborcus/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/liborcus/include -I /home/maarten/src/libreoffice/core/external/boost/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/boost -I /home/maarten/src/libreoffice/core/sfx2/inc -I /home/maarten/src/libreoffice/core/sfx2/source/inc -I /home/maarten/src/libreoffice/core/workdir/SdiTarget/sfx2/sdi -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/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/sfx2/source/toolbox/tbxitem.cxx

/home/maarten/src/libreoffice/core/sfx2/source/toolbox/tbxitem.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#ifdef __sun
22#include <ctime>
23#endif
24
25#include <com/sun/star/uno/Reference.h>
26#include <com/sun/star/frame/XFrame.hpp>
27#include <com/sun/star/awt/XWindow.hpp>
28#include <com/sun/star/util/URL.hpp>
29#include <com/sun/star/util/URLTransformer.hpp>
30#include <com/sun/star/util/XURLTransformer.hpp>
31#include <com/sun/star/frame/XController.hpp>
32#include <com/sun/star/frame/XDispatchProvider.hpp>
33#include <com/sun/star/lang/XUnoTunnel.hpp>
34#include <com/sun/star/beans/PropertyValue.hpp>
35#include <com/sun/star/frame/status/ItemStatus.hpp>
36#include <com/sun/star/ui/XUIElementFactory.hpp>
37#include <com/sun/star/frame/status/Visibility.hpp>
38#include <svl/eitem.hxx>
39#include <svl/stritem.hxx>
40#include <svl/intitem.hxx>
41#include <svl/visitem.hxx>
42#include <vcl/svapp.hxx>
43#include <vcl/toolbox.hxx>
44
45#include <svtools/framestatuslistener.hxx>
46#include <comphelper/processfactory.hxx>
47#include <vcl/taskpanelist.hxx>
48#include <vcl/event.hxx>
49#include <toolkit/helper/vclunohelper.hxx>
50
51#include <vcl/InterimItemWindow.hxx>
52#include <sfx2/tbxctrl.hxx>
53#include <sfx2/dispatch.hxx>
54#include <sfx2/msg.hxx>
55#include <sfx2/msgpool.hxx>
56#include <sfx2/viewfrm.hxx>
57#include <sfx2/module.hxx>
58#include <sfx2/app.hxx>
59#include <unoctitm.hxx>
60#include <ctrlfactoryimpl.hxx>
61
62using namespace ::com::sun::star;
63using namespace ::com::sun::star::beans;
64using namespace ::com::sun::star::frame;
65using namespace ::com::sun::star::frame::status;
66using namespace ::com::sun::star::lang;
67using namespace ::com::sun::star::uno;
68using namespace ::com::sun::star::util;
69using namespace ::com::sun::star::container;
70using namespace ::com::sun::star::ui;
71
72
73SFX_IMPL_TOOLBOX_CONTROL_ARG(SfxToolBoxControl, SfxStringItem, true)SfxToolBoxControl* SfxToolBoxControl::CreateImpl( sal_uInt16 nSlotId
, sal_uInt16 nId, ToolBox &rTbx ) { return new SfxToolBoxControl
( nSlotId, nId, rTbx, true); } void SfxToolBoxControl::RegisterControl
(sal_uInt16 nSlotId, SfxModule *pMod) { SfxToolBoxControl::RegisterToolBoxControl
( pMod, SfxTbxCtrlFactory( SfxToolBoxControl::CreateImpl, typeid
(SfxStringItem), nSlotId ) ); };
74
75svt::ToolboxController* SfxToolBoxControllerFactory( const Reference< XFrame >& rFrame, ToolBox* pToolbox, unsigned short nID, const OUString& aCommandURL )
76{
77 SolarMutexGuard aGuard;
78
79 URL aTargetURL;
80 aTargetURL.Complete = aCommandURL;
81 Reference < XURLTransformer > xTrans( URLTransformer::create( ::comphelper::getProcessComponentContext() ) );
82 xTrans->parseStrict( aTargetURL );
83 if ( !aTargetURL.Arguments.isEmpty() )
84 return nullptr;
85
86 Reference < XController > xController;
87 Reference < XModel > xModel;
88 if ( rFrame.is() )
89 {
90 xController = rFrame->getController();
91 if ( xController.is() )
92 xModel = xController->getModel();
93 }
94
95 SfxObjectShell* pObjShell = SfxObjectShell::GetShellFromComponent(xModel);
96 SfxModule* pModule = pObjShell ? pObjShell->GetModule() : nullptr;
97 SfxSlotPool* pSlotPool = nullptr;
98
99 if ( pModule )
100 pSlotPool = pModule->GetSlotPool();
101 else
102 pSlotPool = &(SfxSlotPool::GetSlotPool());
103
104 const SfxSlot* pSlot = pSlotPool->GetUnoSlot( aTargetURL.Path );
105 if ( pSlot )
106 {
107 sal_uInt16 nSlotId = pSlot->GetSlotId();
108 if ( nSlotId > 0 )
109 return SfxToolBoxControl::CreateControl( nSlotId, nID, pToolbox, pModule );
110 }
111
112 return nullptr;
113}
114
115struct SfxToolBoxControl_Impl
116{
117 VclPtr<ToolBox> pBox;
118 bool bShowString;
119 sal_uInt16 nTbxId;
120 sal_uInt16 nSlotId;
121};
122
123SfxToolBoxControl::SfxToolBoxControl(
124 sal_uInt16 nSlotID,
125 sal_uInt16 nID,
126 ToolBox& rBox,
127 bool bShowStringItems )
128 : pImpl( new SfxToolBoxControl_Impl )
129{
130 pImpl->pBox = &rBox;
131 pImpl->bShowString = bShowStringItems;
132 pImpl->nTbxId = nID;
133 pImpl->nSlotId = nSlotID;
134}
135
136
137SfxToolBoxControl::~SfxToolBoxControl()
138{
139}
140
141
142ToolBox& SfxToolBoxControl::GetToolBox() const
143{
144 return *pImpl->pBox;
145}
146unsigned short SfxToolBoxControl::GetId() const
147{
148 return pImpl->nTbxId;
149}
150unsigned short SfxToolBoxControl::GetSlotId() const
151{
152 return pImpl->nSlotId;
153}
154
155
156void SAL_CALL SfxToolBoxControl::dispose()
157{
158 if ( m_bDisposed )
1
Assuming field 'm_bDisposed' is false
→
2
←
Taking false branch
→
159 return;
160
161 svt::ToolboxController::dispose();
162
163 // Remove and destroy our item window at our toolbox
164 SolarMutexGuard aGuard;
165 VclPtr< vcl::Window > pWindow = pImpl->pBox->GetItemWindow( pImpl->nTbxId );
3
←
Calling constructor for 'VclPtr<vcl::Window>'
→
8
←
Returning from constructor for 'VclPtr<vcl::Window>'
→
166 pImpl->pBox->SetItemWindow( pImpl->nTbxId, nullptr );
167 pWindow.disposeAndClear();
9
←
Calling 'VclPtr::disposeAndClear'
→
168}
169
170
171void SfxToolBoxControl::RegisterToolBoxControl( SfxModule* pMod, const SfxTbxCtrlFactory& rFact)
172{
173 SfxGetpApp()->RegisterToolBoxControl_Impl( pMod, rFact );
174}
175
176SfxToolBoxControl* SfxToolBoxControl::CreateControl( sal_uInt16 nSlotId, sal_uInt16 nTbxId, ToolBox *pBox, SfxModule const * pMod )
177{
178 SolarMutexGuard aGuard;
179
180 SfxApplication *pApp = SfxGetpApp();
181
182 SfxSlotPool *pSlotPool;
183 if ( pMod )
184 pSlotPool = pMod->GetSlotPool();
185 else
186 pSlotPool = &SfxSlotPool::GetSlotPool();
187 const std::type_info* aSlotType = pSlotPool->GetSlotType( nSlotId );
188 if ( aSlotType )
189 {
190 SfxToolBoxControl *pCtrl;
191 if ( pMod )
192 {
193 SfxTbxCtrlFactArr_Impl *pFactories = pMod->GetTbxCtrlFactories_Impl();
194 if ( pFactories )
195 {
196 SfxTbxCtrlFactArr_Impl &rFactories = *pFactories;
197 sal_uInt16 nFactory;
198 const sal_uInt16 nCount = rFactories.size();
199
200 // search for a factory with the given slot id
201 for( nFactory = 0; nFactory < nCount; ++nFactory )
202 if( (rFactories[nFactory].nTypeId == *aSlotType) && (rFactories[nFactory].nSlotId == nSlotId) )
203 break;
204
205 if( nFactory == nCount )
206 {
207 // if no factory exists for the given slot id, see if we
208 // have a generic factory with the correct slot type and slot id == 0
209 for ( nFactory = 0; nFactory < nCount; ++nFactory )
210 if( (rFactories[nFactory].nTypeId == *aSlotType) && (rFactories[nFactory].nSlotId == 0) )
211 break;
212 }
213
214 if( nFactory < nCount )
215 {
216 pCtrl = rFactories[nFactory].pCtor( nSlotId, nTbxId, *pBox );
217 return pCtrl;
218 }
219 }
220 }
221
222 SfxTbxCtrlFactArr_Impl &rFactories = pApp->GetTbxCtrlFactories_Impl();
223 sal_uInt16 nFactory;
224 const sal_uInt16 nCount = rFactories.size();
225
226 for( nFactory = 0; nFactory < nCount; ++nFactory )
227 if( (rFactories[nFactory].nTypeId == *aSlotType) && (rFactories[nFactory].nSlotId == nSlotId) )
228 break;
229
230 if( nFactory == nCount )
231 {
232 // if no factory exists for the given slot id, see if we
233 // have a generic factory with the correct slot type and slot id == 0
234 for( nFactory = 0; nFactory < nCount; ++nFactory )
235 if( (rFactories[nFactory].nTypeId == *aSlotType) && (rFactories[nFactory].nSlotId == 0) )
236 break;
237 }
238
239 if( nFactory < nCount )
240 {
241 pCtrl = rFactories[nFactory].pCtor( nSlotId, nTbxId, *pBox );
242 return pCtrl;
243 }
244 }
245
246 return nullptr;
247}
248
249SfxItemState SfxToolBoxControl::GetItemState(
250 const SfxPoolItem* pState )
251/* [Description]
252
253 Static method for determining the status of the SfxPoolItem-pointer,
254 used in the method <SfxControllerItem::StateChanged(const SfxPoolItem*)>.
255
256 [Return value]
257
258 SfxItemState SfxItemState::UNKNOWN
259 Enabled, however no further status information is available.
260 Typical for <Slot>s, which are temporarily disabled a
261 anyway but other than that do not change their appearance.
262
263 SfxItemState::DISABLED
264 Disabled, no further status information is available.
265 All other displayed values should be reset to the default
266 if possible.
267
268 SfxItemState::DONTCARE
269 Enabled but there were only ambiguous values available
270 (i.e. none that could be queried).
271
272 SfxItemState::DEFAULT
273 Enabled and with available values which can be queried
274 through'pState'. The type is thus by the Slot clearly
275 defined in the entire Program.
276*/
277
278{
279 return !pState
280 ? SfxItemState::DISABLED
281 : IsInvalidItem(pState)
282 ? SfxItemState::DONTCARE
283 : pState->IsVoidItem() && !pState->Which()
284 ? SfxItemState::UNKNOWN
285 : SfxItemState::DEFAULT;
286}
287
288void SfxToolBoxControl::Dispatch(
289 const Reference< XDispatchProvider >& rProvider,
290 const OUString& rCommand,
291 Sequence< ::PropertyValue > const & aArgs )
292{
293 if ( rProvider.is() )
294 {
295 css::util::URL aTargetURL;
296 aTargetURL.Complete = rCommand;
297 Reference < XURLTransformer > xTrans( URLTransformer::create( ::comphelper::getProcessComponentContext() ) );
298 xTrans->parseStrict( aTargetURL );
299
300 Reference < XDispatch > xDispatch = rProvider->queryDispatch( aTargetURL, OUString(), 0 );
301 if ( xDispatch.is() )
302 xDispatch->dispatch( aTargetURL, aArgs );
303 }
304}
305
306void SfxToolBoxControl::Dispatch( const OUString& aCommand, css::uno::Sequence< css::beans::PropertyValue > const & aArgs )
307{
308 Reference < XController > xController;
309
310 SolarMutexGuard aGuard;
311 if ( getFrameInterface().is() )
312 xController = getFrameInterface()->getController();
313
314 Reference < XDispatchProvider > xProvider( xController, UNO_QUERY );
315 if ( xProvider.is() )
316 {
317 css::util::URL aTargetURL;
318 aTargetURL.Complete = aCommand;
319 getURLTransformer()->parseStrict( aTargetURL );
320
321 Reference < XDispatch > xDispatch = xProvider->queryDispatch( aTargetURL, OUString(), 0 );
322 if ( xDispatch.is() )
323 xDispatch->dispatch( aTargetURL, aArgs );
324 }
325}
326
327// XStatusListener
328void SAL_CALL SfxToolBoxControl::statusChanged( const FeatureStateEvent& rEvent )
329{
330 SfxViewFrame* pViewFrame = nullptr;
331 Reference < XController > xController;
332
333 SolarMutexGuard aGuard;
334 if ( getFrameInterface().is() )
335 xController = getFrameInterface()->getController();
336
337 Reference < XDispatchProvider > xProvider( xController, UNO_QUERY );
338 if ( xProvider.is() )
339 {
340 Reference < XDispatch > xDisp = xProvider->queryDispatch( rEvent.FeatureURL, OUString(), 0 );
341 if ( xDisp.is() )
342 {
343 Reference< XUnoTunnel > xTunnel( xDisp, UNO_QUERY );
344 SfxOfficeDispatch* pDisp = nullptr;
345 if ( xTunnel.is() )
346 {
347 sal_Int64 nImplementation = xTunnel->getSomething(SfxOfficeDispatch::impl_getStaticIdentifier());
348 pDisp = reinterpret_cast< SfxOfficeDispatch* >( sal::static_int_cast< sal_IntPtr >( nImplementation ));
349 }
350
351 if ( pDisp )
352 pViewFrame = pDisp->GetDispatcher_Impl()->GetFrame();
353 }
354 }
355
356 sal_uInt16 nSlotId = 0;
357 SfxSlotPool& rPool = SfxSlotPool::GetSlotPool( pViewFrame );
358 const SfxSlot* pSlot = rPool.GetUnoSlot( rEvent.FeatureURL.Path );
359 if ( pSlot )
360 nSlotId = pSlot->GetSlotId();
361 else if ( m_aCommandURL == rEvent.FeatureURL.Path )
362 nSlotId = GetSlotId();
363
364 if ( nSlotId <= 0 )
365 return;
366
367 if ( rEvent.Requery )
368 svt::ToolboxController::statusChanged( rEvent );
369 else
370 {
371 SfxItemState eState = SfxItemState::DISABLED;
372 std::unique_ptr<SfxPoolItem> pItem;
373 if ( rEvent.IsEnabled )
374 {
375 eState = SfxItemState::DEFAULT;
376 css::uno::Type aType = rEvent.State.getValueType();
377
378 if ( aType == cppu::UnoType<void>::get() )
379 {
380 pItem.reset(new SfxVoidItem( nSlotId ));
381 eState = SfxItemState::UNKNOWN;
382 }
383 else if ( aType == cppu::UnoType<bool>::get() )
384 {
385 bool bTemp = false;
386 rEvent.State >>= bTemp ;
387 pItem.reset(new SfxBoolItem( nSlotId, bTemp ));
388 }
389 else if ( aType == ::cppu::UnoType< ::cppu::UnoUnsignedShortType >::get())
390 {
391 sal_uInt16 nTemp = 0;
392 rEvent.State >>= nTemp ;
393 pItem.reset(new SfxUInt16Item( nSlotId, nTemp ));
394 }
395 else if ( aType == cppu::UnoType<sal_uInt32>::get() )
396 {
397 sal_uInt32 nTemp = 0;
398 rEvent.State >>= nTemp ;
399 pItem.reset(new SfxUInt32Item( nSlotId, nTemp ));
400 }
401 else if ( aType == cppu::UnoType<OUString>::get() )
402 {
403 OUString sTemp ;
404 rEvent.State >>= sTemp ;
405 pItem.reset(new SfxStringItem( nSlotId, sTemp ));
406 }
407 else if ( aType == cppu::UnoType< css::frame::status::ItemStatus>::get() )
408 {
409 ItemStatus aItemStatus;
410 rEvent.State >>= aItemStatus;
411 SfxItemState tmpState = static_cast<SfxItemState>(aItemStatus.State);
412 // make sure no-one tries to send us a combination of states
413 if (tmpState != SfxItemState::UNKNOWN && tmpState != SfxItemState::DISABLED &&
414 tmpState != SfxItemState::READONLY && tmpState != SfxItemState::DONTCARE &&
415 tmpState != SfxItemState::DEFAULT && tmpState != SfxItemState::SET)
416 throw css::uno::RuntimeException("unknown status");
417 eState = tmpState;
418 pItem.reset(new SfxVoidItem( nSlotId ));
419 }
420 else if ( aType == cppu::UnoType< css::frame::status::Visibility>::get() )
421 {
422 Visibility aVisibilityStatus;
423 rEvent.State >>= aVisibilityStatus;
424 pItem.reset(new SfxVisibilityItem( nSlotId, aVisibilityStatus.bVisible ));
425 }
426 else
427 {
428 if ( pSlot )
429 pItem = pSlot->GetType()->CreateItem();
430 if ( pItem )
431 {
432 pItem->SetWhich( nSlotId );
433 pItem->PutValue( rEvent.State, 0 );
434 }
435 else
436 pItem.reset(new SfxVoidItem( nSlotId ));
437 }
438 }
439
440 StateChanged( nSlotId, eState, pItem.get() );
441 }
442}
443
444// XToolbarController
445void SAL_CALL SfxToolBoxControl::execute( sal_Int16 KeyModifier )
446{
447 SolarMutexGuard aGuard;
448 Select( static_cast<sal_uInt16>(KeyModifier) );
449}
450
451void SAL_CALL SfxToolBoxControl::click()
452{
453 SolarMutexGuard aGuard;
454 Click();
455}
456
457void SAL_CALL SfxToolBoxControl::doubleClick()
458{
459 SolarMutexGuard aGuard;
460 DoubleClick();
461}
462
463Reference< css::awt::XWindow > SAL_CALL SfxToolBoxControl::createPopupWindow()
464{
465 SolarMutexGuard aGuard;
466 CreatePopupWindow();
467 return nullptr;
468}
469
470Reference< css::awt::XWindow > SAL_CALL SfxToolBoxControl::createItemWindow( const Reference< css::awt::XWindow >& rParent )
471{
472 SolarMutexGuard aGuard;
473 return VCLUnoHelper::GetInterface( CreateItemWindow( VCLUnoHelper::GetWindow( rParent )));
474}
475
476void SfxToolBoxControl::StateChanged
477(
478 sal_uInt16 nId,
479 SfxItemState eState,
480 const SfxPoolItem* pState
481)
482{
483 DBG_ASSERT( pImpl->pBox != nullptr, "setting state to dangling ToolBox" )do { if (true && (!(pImpl->pBox != nullptr))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.tools"), ("/home/maarten/src/libreoffice/core/sfx2/source/toolbox/tbxitem.cxx"
":" "483" ": "), "%s", "setting state to dangling ToolBox");
} } while (false);
484
485 // enabled/disabled-Flag correcting the lump sum
486 pImpl->pBox->EnableItem( GetId(), eState != SfxItemState::DISABLED );
487
488 ToolBoxItemBits nItemBits = pImpl->pBox->GetItemBits( GetId() );
489 nItemBits &= ~ToolBoxItemBits::CHECKABLE;
490 ::TriState eTri = TRISTATE_FALSE;
491 switch ( eState )
492 {
493 case SfxItemState::DEFAULT:
494 if ( pState )
495 {
496 if ( auto pBoolItem = dynamic_cast< const SfxBoolItem* >(pState) )
497 {
498 // BoolItem for checking
499 if ( pBoolItem->GetValue() )
500 eTri = TRISTATE_TRUE;
501 nItemBits |= ToolBoxItemBits::CHECKABLE;
502 }
503 else if ( dynamic_cast< const SfxEnumItemInterface *>( pState ) != nullptr &&
504 static_cast<const SfxEnumItemInterface *>(pState)->HasBoolValue())
505 {
506 // EnumItem is handled as Bool
507 if ( static_cast<const SfxEnumItemInterface *>(pState)->GetBoolValue() )
508 eTri = TRISTATE_TRUE;
509 nItemBits |= ToolBoxItemBits::CHECKABLE;
510 }
511 else if ( pImpl->bShowString && dynamic_cast< const SfxStringItem *>( pState ) != nullptr )
512 pImpl->pBox->SetItemText(nId, static_cast<const SfxStringItem*>(pState)->GetValue() );
513 }
514 break;
515
516 case SfxItemState::DONTCARE:
517 {
518 eTri = TRISTATE_INDET;
519 nItemBits |= ToolBoxItemBits::CHECKABLE;
520 }
521 break;
522
523 default: break; // do nothing
524 }
525
526 pImpl->pBox->SetItemState( GetId(), eTri );
527 pImpl->pBox->SetItemBits( GetId(), nItemBits );
528}
529
530
531void SfxToolBoxControl::Select( sal_uInt16 nSelectModifier )
532{
533 svt::ToolboxController::execute( nSelectModifier );
534}
535
536
537void SfxToolBoxControl::DoubleClick()
538{
539}
540
541
542void SfxToolBoxControl::Click()
543{
544}
545
546void SfxToolBoxControl::CreatePopupWindow()
547{
548}
549
550VclPtr<InterimItemWindow> SfxToolBoxControl::CreateItemWindow(vcl::Window*)
551{
552 return VclPtr<InterimItemWindow>();
553}
554
555/* 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)
4
←
Calling constructor for 'Reference<vcl::Window>'
→
7
←
Returning from constructor for 'Reference<vcl::Window>'
→
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);
204 m_rInnerRef.clear(); // we should use some 'swap' method ideally ;-)
10
←
Calling 'Reference::clear'
→
17
←
Returning; memory was released
→
205 if (aTmp.get()) {
18
←
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)
5
←
Assuming field 'm_pBody' is non-null
→
6
←
Taking true branch
→
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)
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
10.1
Field 'm_pBody' is non-null
10.1
Field 'm_pBody' is non-null
10.1
Field 'm_pBody' is non-null
10.1
Field 'm_pBody' is non-null
)
11
←
Taking true branch
→
177 {
178 reference_type * const pOld = m_pBody;
179 m_pBody = NULL__null;
180 pOld->release();
12
←
Calling 'VclReferenceBase::release'
→
16
←
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;
19
←
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)
13
←
Assuming the condition is true
→
14
←
Taking true branch
→
40 delete this;
15
←
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