Bug Summary

File:home/maarten/src/libreoffice/core/include/rtl/ref.hxx
Warning:line 113, column 13
Use of memory after it is freed

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name event.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 /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/glm -isystem /usr/include/glib-2.0 -isystem /usr/lib64/glib-2.0/include -isystem /usr/include/libmount -isystem /usr/include/blkid -isystem /usr/include/cairo -isystem /usr/include/glib-2.0 -isystem /usr/lib64/glib-2.0/include -isystem /usr/include/pixman-1 -isystem /usr/include/freetype2 -isystem /usr/include/libpng16 -isystem /usr/include/libxml2 -isystem /usr/include/freetype2 -isystem /usr/include/libpng16 -isystem /usr/include/dbus-1.0 -isystem /usr/lib64/dbus-1.0/include -isystem /usr/include/freetype2 -isystem /usr/include/libpng16 -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 VCL_DLLIMPLEMENTATION -D DLLIMPLEMENTATION_UITEST -D CUI_DLL_NAME="libcuilo.so" -D DESKTOP_DETECTOR_DLL_NAME="libdesktop_detectorlo.so" -D TK_DLL_NAME="libtklo.so" -D SYSTEM_ZLIB -D GLM_FORCE_CTOR_INIT -D SK_USER_CONFIG_HEADER=</home/maarten/src/libreoffice/core/config_host/config_skia.h> -D SKIA_DLL -D ENABLE_CUPS -D HAVE_VALGRIND_HEADERS -D EXCEPTIONS_ON -D LIBO_INTERNAL_ONLY -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/epoxy/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/skia/include/core -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/skia/include/effects -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/skia/include/gpu -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/skia/include/config -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/skia/include/ports -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/skia/include/third_party/vulkan -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/skia/tools/gpu -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/skia -I /home/maarten/src/libreoffice/core/external/skia/inc/ -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/mdds/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/lcms2/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/icu/source -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/icu/source/i18n -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/icu/source/common -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/harfbuzz/src -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/graphite/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/workdir/UnpackedTarball/pdfium -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/pdfium/public -D COMPONENT_BUILD -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/libpng -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/libjpeg-turbo -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/vcl/inc -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/udkapi/normal -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/offapi/normal -I /home/maarten/src/libreoffice/core/workdir/CustomTarget/officecfg/registry -I /usr/include/freetype2 -I /usr/include/libpng16 -I /usr/include/libxml2 -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/vcl/source/window/event.cxx

/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx

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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#include <vcl/event.hxx>
21#include <vcl/window.hxx>
22#include <vcl/dockwin.hxx>
23#include <vcl/layout.hxx>
24#include <vcl/opengl/OpenGLWrapper.hxx>
25#include <sal/log.hxx>
26
27#include <window.h>
28#include <svdata.hxx>
29#include <salframe.hxx>
30#include <config_features.h>
31#include <comphelper/scopeguard.hxx>
32
33namespace vcl {
34
35void Window::DataChanged( const DataChangedEvent& )
36{
37}
38
39void Window::NotifyAllChildren( DataChangedEvent& rDCEvt )
40{
41 CompatDataChanged( rDCEvt );
42
43 vcl::Window* pChild = mpWindowImpl->mpFirstChild;
44 while ( pChild )
45 {
46 pChild->NotifyAllChildren( rDCEvt );
47 pChild = pChild->mpWindowImpl->mpNext;
48 }
49}
50
51bool Window::PreNotify( NotifyEvent& rNEvt )
52{
53 bool bDone = false;
54 if ( mpWindowImpl->mpParent && !ImplIsOverlapWindow() )
55 bDone = mpWindowImpl->mpParent->CompatPreNotify( rNEvt );
56
57 if ( !bDone )
58 {
59 if( rNEvt.GetType() == MouseNotifyEvent::GETFOCUS )
60 {
61 bool bCompoundFocusChanged = false;
62 if ( mpWindowImpl->mbCompoundControl && !mpWindowImpl->mbCompoundControlHasFocus && HasChildPathFocus() )
63 {
64 mpWindowImpl->mbCompoundControlHasFocus = true;
65 bCompoundFocusChanged = true;
66 }
67
68 if ( bCompoundFocusChanged || ( rNEvt.GetWindow() == this ) )
69 CallEventListeners( VclEventId::WindowGetFocus );
70 }
71 else if( rNEvt.GetType() == MouseNotifyEvent::LOSEFOCUS )
72 {
73 bool bCompoundFocusChanged = false;
74 if ( mpWindowImpl->mbCompoundControl && mpWindowImpl->mbCompoundControlHasFocus && !HasChildPathFocus() )
75 {
76 mpWindowImpl->mbCompoundControlHasFocus = false ;
77 bCompoundFocusChanged = true;
78 }
79
80 if ( bCompoundFocusChanged || ( rNEvt.GetWindow() == this ) )
81 CallEventListeners( VclEventId::WindowLoseFocus );
82 }
83
84 // #82968# mouse and key events will be notified after processing ( in ImplNotifyKeyMouseCommandEventListeners() )!
85 // see also ImplHandleMouseEvent(), ImplHandleKey()
86
87 }
88
89 return bDone;
90}
91
92namespace
93{
94 bool parentNotDialogControl(Window* pWindow)
95 {
96 vcl::Window* pParent = getNonLayoutParent(pWindow);
97 if (!pParent)
98 return true;
99 return ((pParent->GetStyle() & (WB_DIALOGCONTROL | WB_NODIALOGCONTROL)) != WB_DIALOGCONTROL);
100 }
101}
102
103bool Window::EventNotify( NotifyEvent& rNEvt )
104{
105 bool bRet = false;
106
107 if (IsDisposed())
108 return false;
109
110 // check for docking window
111 // but do nothing if window is docked and locked
112 ImplDockingWindowWrapper *pWrapper = ImplGetDockingManager()->GetDockingWindowWrapper( this );
113 if (pWrapper && ( pWrapper->IsFloatingMode() || !pWrapper->IsLocked() ))
114 {
115 const bool bDockingSupportCrippled = !StyleSettings::GetDockingFloatsSupported();
116
117 if ( rNEvt.GetType() == MouseNotifyEvent::MOUSEBUTTONDOWN )
118 {
119 const MouseEvent* pMEvt = rNEvt.GetMouseEvent();
120 bool bHit = pWrapper->GetDragArea().IsInside( pMEvt->GetPosPixel() );
121 if ( pMEvt->IsLeft() )
122 {
123 if (!bDockingSupportCrippled && pMEvt->IsMod1() && (pMEvt->GetClicks() == 2))
124 {
125 // ctrl double click toggles floating mode
126 pWrapper->SetFloatingMode( !pWrapper->IsFloatingMode() );
127 return true;
128 }
129 else if ( pMEvt->GetClicks() == 1 && bHit)
130 {
131 // allow start docking during mouse move
132 pWrapper->ImplEnableStartDocking();
133 return true;
134 }
135 }
136 }
137 else if ( rNEvt.GetType() == MouseNotifyEvent::MOUSEMOVE )
138 {
139 const MouseEvent* pMEvt = rNEvt.GetMouseEvent();
140 bool bHit = pWrapper->GetDragArea().IsInside( pMEvt->GetPosPixel() );
141 if ( pMEvt->IsLeft() )
142 {
143 // check if a single click initiated this sequence ( ImplStartDockingEnabled() )
144 // check if window is docked and
145 if( pWrapper->ImplStartDockingEnabled() && !pWrapper->IsFloatingMode() &&
146 !pWrapper->IsDocking() && bHit )
147 {
148 Point aPos = pMEvt->GetPosPixel();
149 vcl::Window* pWindow = rNEvt.GetWindow();
150 if ( pWindow != this )
151 {
152 aPos = pWindow->OutputToScreenPixel( aPos );
153 aPos = ScreenToOutputPixel( aPos );
154 }
155 pWrapper->ImplStartDocking( aPos );
156 }
157 return true;
158 }
159 }
160 else if( rNEvt.GetType() == MouseNotifyEvent::KEYINPUT )
161 {
162 const vcl::KeyCode& rKey = rNEvt.GetKeyEvent()->GetKeyCode();
163 if (rKey.GetCode() == KEY_F10 && rKey.GetModifier() &&
164 rKey.IsShift() && rKey.IsMod1() && !bDockingSupportCrippled)
165 {
166 pWrapper->SetFloatingMode( !pWrapper->IsFloatingMode() );
167 /* At this point the floating toolbar frame does not have the
168 * input focus since these frames don't get the focus per default
169 * To enable keyboard handling of this toolbar set the input focus
170 * to the frame. This needs to be done with ToTop since GrabFocus
171 * would not notice any change since "this" already has the focus.
172 */
173 if( pWrapper->IsFloatingMode() )
174 ToTop( ToTopFlags::GrabFocusOnly );
175 return true;
176 }
177 }
178 }
179
180 // manage the dialogs
181 if ( (GetStyle() & (WB_DIALOGCONTROL | WB_NODIALOGCONTROL)) == WB_DIALOGCONTROL )
182 {
183 // if the parent also has dialog control activated, the parent takes over control
184 if ( (rNEvt.GetType() == MouseNotifyEvent::KEYINPUT) || (rNEvt.GetType() == MouseNotifyEvent::KEYUP) )
185 {
186 // ScGridWindow has WB_DIALOGCONTROL set, so pressing tab in ScCheckListMenuControl won't
187 // get processed here by the toplevel DockingWindow of ScCheckListMenuControl by
188 // just checking if parentNotDialogControl is true
189 bool bTopLevelFloatingWindow = (pWrapper && pWrapper->IsFloatingMode());
190 if (ImplIsOverlapWindow() || parentNotDialogControl(this) || bTopLevelFloatingWindow)
191 {
192 bRet = ImplDlgCtrl( *rNEvt.GetKeyEvent(), rNEvt.GetType() == MouseNotifyEvent::KEYINPUT );
193 }
194 }
195 else if ( (rNEvt.GetType() == MouseNotifyEvent::GETFOCUS) || (rNEvt.GetType() == MouseNotifyEvent::LOSEFOCUS) )
196 {
197 ImplDlgCtrlFocusChanged( rNEvt.GetWindow(), rNEvt.GetType() == MouseNotifyEvent::GETFOCUS );
198 if ( (rNEvt.GetWindow() == this) && (rNEvt.GetType() == MouseNotifyEvent::GETFOCUS) &&
199 !(GetStyle() & WB_TABSTOP) && !(mpWindowImpl->mnDlgCtrlFlags & DialogControlFlags::WantFocus) )
200 {
201 vcl::Window* pFirstChild = ImplGetDlgWindow( 0, GetDlgWindowType::First );
202 if ( pFirstChild )
203 pFirstChild->ImplControlFocus();
204 }
205 }
206 }
207
208 if ( !bRet )
209 {
210 if ( mpWindowImpl->mpParent && !ImplIsOverlapWindow() )
211 bRet = mpWindowImpl->mpParent->CompatNotify( rNEvt );
212 }
213
214 return bRet;
215}
216
217void Window::CallEventListeners( VclEventId nEvent, void* pData )
218{
219 VclWindowEvent aEvent( this, nEvent, pData );
220
221 VclPtr<vcl::Window> xWindow = this;
222
223 Application::ImplCallEventListeners( aEvent );
224
225 if ( xWindow->IsDisposed() )
4
←
Assuming the condition is false
→
5
←
Taking false branch
→
226 return;
227
228 // If maEventListeners is empty, the XVCLWindow has not yet been initialized.
229 // Calling GetComponentInterface will do that.
230 if (mpWindowImpl->maEventListeners.empty() && pData)
6
←
Assuming the condition is false
→
231 xWindow->GetComponentInterface();
232
233 if (!mpWindowImpl->maEventListeners.empty())
7
←
Assuming the condition is false
→
8
←
Taking false branch
→
234 {
235 // Copy the list, because this can be destroyed when calling a Link...
236 std::vector<Link<VclWindowEvent&,void>> aCopy( mpWindowImpl->maEventListeners );
237 // we use an iterating counter/flag and a set of deleted Link's to avoid O(n^2) behaviour
238 mpWindowImpl->mnEventListenersIteratingCount++;
239 auto& rWindowImpl = *mpWindowImpl;
240 comphelper::ScopeGuard aGuard(
241 [&rWindowImpl, &xWindow]()
242 {
243 if (!xWindow->IsDisposed())
244 {
245 rWindowImpl.mnEventListenersIteratingCount--;
246 if (rWindowImpl.mnEventListenersIteratingCount == 0)
247 rWindowImpl.maEventListenersDeleted.clear();
248 }
249 }
250 );
251 for ( const Link<VclWindowEvent&,void>& rLink : aCopy )
252 {
253 if (xWindow->IsDisposed()) break;
254 // check this hasn't been removed in some re-enterancy scenario fdo#47368
255 if( rWindowImpl.maEventListenersDeleted.find(rLink) == rWindowImpl.maEventListenersDeleted.end() )
256 rLink.Call( aEvent );
257 }
258 }
259
260 while ( xWindow )
9
←
Loop condition is true. Entering loop body
→
16
←
Loop condition is true. Entering loop body
→
38
←
Loop condition is true. Entering loop body
→
261 {
262
263 if ( xWindow->IsDisposed() )
10
←
Assuming the condition is false
→
11
←
Taking false branch
→
17
←
Assuming the condition is false
→
18
←
Taking false branch
→
39
←
Assuming the condition is false
→
40
←
Taking false branch
→
264 return;
265
266 auto& rWindowImpl = *xWindow->mpWindowImpl;
267 if (!rWindowImpl.maChildEventListeners.empty())
12
←
Assuming the condition is false
→
13
←
Taking false branch
→
19
←
Assuming the condition is true
→
20
←
Taking true branch
→
41
←
Assuming the condition is true
→
42
←
Taking true branch
→
268 {
269 // Copy the list, because this can be destroyed when calling a Link...
270 std::vector<Link<VclWindowEvent&,void>> aCopy( rWindowImpl.maChildEventListeners );
271 // we use an iterating counter/flag and a set of deleted Link's to avoid O(n^2) behaviour
272 rWindowImpl.mnChildEventListenersIteratingCount++;
273 comphelper::ScopeGuard aGuard(
274 [&rWindowImpl, &xWindow]()
275 {
276 if (!xWindow->IsDisposed())
277 {
278 rWindowImpl.mnChildEventListenersIteratingCount--;
279 if (rWindowImpl.mnChildEventListenersIteratingCount == 0)
280 rWindowImpl.maChildEventListenersDeleted.clear();
281 }
282 }
283 );
284 for ( const Link<VclWindowEvent&,void>& rLink : aCopy )
285 {
286 if (xWindow->IsDisposed())
21
←
Assuming the condition is false
→
22
←
Taking false branch
→
43
←
Assuming the condition is true
→
44
←
Taking true branch
→
287 return;
45
←
Calling implicit destructor for 'VclPtr<vcl::Window>'
→
46
←
Calling '~Reference'
→
288 // Check this hasn't been removed in some re-enterancy scenario fdo#47368.
289 if( rWindowImpl.maChildEventListenersDeleted.find(rLink) == rWindowImpl.maChildEventListenersDeleted.end() )
23
←
Taking false branch
→
290 rLink.Call( aEvent );
291 }
292 }
293
294 if ( xWindow->IsDisposed() )
14
←
Assuming the condition is false
→
15
←
Taking false branch
→
24
←
Assuming the condition is false
→
25
←
Taking false branch
→
295 return;
296
297 xWindow = xWindow->GetParent();
26
←
Calling 'VclPtr::operator='
→
37
←
Returning; memory was released
→
298 }
299}
300
301void Window::AddEventListener( const Link<VclWindowEvent&,void>& rEventListener )
302{
303 mpWindowImpl->maEventListeners.push_back( rEventListener );
304}
305
306void Window::RemoveEventListener( const Link<VclWindowEvent&,void>& rEventListener )
307{
308 if (mpWindowImpl)
309 {
310 auto& rListeners = mpWindowImpl->maEventListeners;
311 rListeners.erase( std::remove(rListeners.begin(), rListeners.end(), rEventListener ), rListeners.end() );
312 if (mpWindowImpl->mnEventListenersIteratingCount)
313 mpWindowImpl->maEventListenersDeleted.insert(rEventListener);
314 }
315}
316
317void Window::AddChildEventListener( const Link<VclWindowEvent&,void>& rEventListener )
318{
319 mpWindowImpl->maChildEventListeners.push_back( rEventListener );
320}
321
322void Window::RemoveChildEventListener( const Link<VclWindowEvent&,void>& rEventListener )
323{
324 if (mpWindowImpl)
325 {
326 auto& rListeners = mpWindowImpl->maChildEventListeners;
327 rListeners.erase( std::remove(rListeners.begin(), rListeners.end(), rEventListener ), rListeners.end() );
328 if (mpWindowImpl->mnChildEventListenersIteratingCount)
329 mpWindowImpl->maChildEventListenersDeleted.insert(rEventListener);
330 }
331}
332
333ImplSVEvent * Window::PostUserEvent( const Link<void*,void>& rLink, void* pCaller, bool bReferenceLink )
334{
335 std::unique_ptr<ImplSVEvent> pSVEvent(new ImplSVEvent);
336 pSVEvent->mpData = pCaller;
337 pSVEvent->maLink = rLink;
338 pSVEvent->mpWindow = this;
339 pSVEvent->mbCall = true;
340 if (bReferenceLink)
341 {
342 // Double check that this is indeed a vcl::Window instance.
343 assert(dynamic_cast<vcl::Window *>((static_cast <bool> (dynamic_cast<vcl::Window *>(
static_cast<OutputDevice *>(rLink.GetInstance())) == static_cast
<vcl::Window *>(rLink.GetInstance())) ? void (0) : __assert_fail
("dynamic_cast<vcl::Window *>( static_cast<OutputDevice *>(rLink.GetInstance())) == static_cast<vcl::Window *>(rLink.GetInstance())"
, "/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
, 345, __extension__ __PRETTY_FUNCTION__))
344 static_cast<OutputDevice *>(rLink.GetInstance())) ==(static_cast <bool> (dynamic_cast<vcl::Window *>(
static_cast<OutputDevice *>(rLink.GetInstance())) == static_cast
<vcl::Window *>(rLink.GetInstance())) ? void (0) : __assert_fail
("dynamic_cast<vcl::Window *>( static_cast<OutputDevice *>(rLink.GetInstance())) == static_cast<vcl::Window *>(rLink.GetInstance())"
, "/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
, 345, __extension__ __PRETTY_FUNCTION__))
345 static_cast<vcl::Window *>(rLink.GetInstance()))(static_cast <bool> (dynamic_cast<vcl::Window *>(
static_cast<OutputDevice *>(rLink.GetInstance())) == static_cast
<vcl::Window *>(rLink.GetInstance())) ? void (0) : __assert_fail
("dynamic_cast<vcl::Window *>( static_cast<OutputDevice *>(rLink.GetInstance())) == static_cast<vcl::Window *>(rLink.GetInstance())"
, "/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
, 345, __extension__ __PRETTY_FUNCTION__));
346 pSVEvent->mpInstanceRef = static_cast<vcl::Window *>(rLink.GetInstance());
347 }
348
349 auto pTmpEvent = pSVEvent.get();
350 if (!mpWindowImpl->mpFrame->PostEvent( std::move(pSVEvent) ))
351 return nullptr;
352 return pTmpEvent;
353}
354
355void Window::RemoveUserEvent( ImplSVEvent * nUserEvent )
356{
357 SAL_WARN_IF( nUserEvent->mpWindow.get() != this, "vcl",do { if (true && (nUserEvent->mpWindow.get() != this
)) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_WARN
, "vcl")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case SAL_DETAIL_LOG_ACTION_LOG
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Window::RemoveUserEvent(): Event doesn't send to this window or is already removed"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "358" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::RemoveUserEvent(): Event doesn't send to this window or is already removed"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::RemoveUserEvent(): Event doesn't send to this window or is already removed"
; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"),
("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "358" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Window::RemoveUserEvent(): Event doesn't send to this window or is already removed"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "358" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::RemoveUserEvent(): Event doesn't send to this window or is already removed"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::RemoveUserEvent(): Event doesn't send to this window or is already removed"
; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"),
("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "358" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false)
358 "Window::RemoveUserEvent(): Event doesn't send to this window or is already removed" )do { if (true && (nUserEvent->mpWindow.get() != this
)) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_WARN
, "vcl")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case SAL_DETAIL_LOG_ACTION_LOG
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Window::RemoveUserEvent(): Event doesn't send to this window or is already removed"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "358" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::RemoveUserEvent(): Event doesn't send to this window or is already removed"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::RemoveUserEvent(): Event doesn't send to this window or is already removed"
; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"),
("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "358" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Window::RemoveUserEvent(): Event doesn't send to this window or is already removed"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "358" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::RemoveUserEvent(): Event doesn't send to this window or is already removed"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::RemoveUserEvent(): Event doesn't send to this window or is already removed"
; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"),
("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "358" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
359 SAL_WARN_IF( !nUserEvent->mbCall, "vcl",do { if (true && (!nUserEvent->mbCall)) { switch (
sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_WARN, "vcl")) { case
SAL_DETAIL_LOG_ACTION_IGNORE: break; case SAL_DETAIL_LOG_ACTION_LOG
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Window::RemoveUserEvent(): Event is already removed"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "360" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::RemoveUserEvent(): Event is already removed"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::RemoveUserEvent(): Event is already removed"
; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"),
("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "360" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Window::RemoveUserEvent(): Event is already removed"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "360" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::RemoveUserEvent(): Event is already removed"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::RemoveUserEvent(): Event is already removed"
; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"),
("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "360" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false)
360 "Window::RemoveUserEvent(): Event is already removed" )do { if (true && (!nUserEvent->mbCall)) { switch (
sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_WARN, "vcl")) { case
SAL_DETAIL_LOG_ACTION_IGNORE: break; case SAL_DETAIL_LOG_ACTION_LOG
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Window::RemoveUserEvent(): Event is already removed"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "360" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::RemoveUserEvent(): Event is already removed"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::RemoveUserEvent(): Event is already removed"
; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"),
("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "360" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Window::RemoveUserEvent(): Event is already removed"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "360" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::RemoveUserEvent(): Event is already removed"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::RemoveUserEvent(): Event is already removed"
; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"),
("/home/maarten/src/libreoffice/core/vcl/source/window/event.cxx"
":" "360" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
361
362 if ( nUserEvent->mpWindow )
363 {
364 nUserEvent->mpWindow = nullptr;
365 }
366
367 nUserEvent->mbCall = false;
368}
369
370
371static MouseEvent ImplTranslateMouseEvent( const MouseEvent& rE, vcl::Window const * pSource, vcl::Window const * pDest )
372{
373 // the mouse event occurred in a different window, we need to translate the coordinates of
374 // the mouse cursor within that (source) window to the coordinates the mouse cursor would
375 // be in the destination window
376 Point aPos = pSource->OutputToScreenPixel( rE.GetPosPixel() );
377 return MouseEvent( pDest->ScreenToOutputPixel( aPos ), rE.GetClicks(), rE.GetMode(), rE.GetButtons(), rE.GetModifier() );
378}
379
380void Window::ImplNotifyKeyMouseCommandEventListeners( NotifyEvent& rNEvt )
381{
382 if( rNEvt.GetType() == MouseNotifyEvent::COMMAND )
383 {
384 const CommandEvent* pCEvt = rNEvt.GetCommandEvent();
385 if ( pCEvt->GetCommand() != CommandEventId::ContextMenu )
386 // non context menu events are not to be notified up the chain
387 // so we return immediately
388 return;
389
390 if ( mpWindowImpl->mbCompoundControl || ( rNEvt.GetWindow() == this ) )
391 {
392 // not interested: The event listeners are already called in ::Command,
393 // and calling them here a second time doesn't make sense
394 if ( rNEvt.GetWindow() != this )
395 {
396 CommandEvent aCommandEvent;
397
398 if ( !pCEvt->IsMouseEvent() )
399 {
400 aCommandEvent = *pCEvt;
401 }
402 else
403 {
404 // the mouse event occurred in a different window, we need to translate the coordinates of
405 // the mouse cursor within that window to the coordinates the mouse cursor would be in the
406 // current window
407 vcl::Window* pSource = rNEvt.GetWindow();
408 Point aPos = pSource->OutputToScreenPixel( pCEvt->GetMousePosPixel() );
409 aCommandEvent = CommandEvent( ScreenToOutputPixel( aPos ), pCEvt->GetCommand(), pCEvt->IsMouseEvent(), pCEvt->GetEventData() );
410 }
411
412 CallEventListeners( VclEventId::WindowCommand, &aCommandEvent );
413 }
414 }
415 }
416
417 // #82968# notify event listeners for mouse and key events separately and
418 // not in PreNotify ( as for focus listeners )
419 // this allows for processing those events internally first and pass it to
420 // the toolkit later
421
422 VclPtr<vcl::Window> xWindow = this;
423
424 if( rNEvt.GetType() == MouseNotifyEvent::MOUSEMOVE )
425 {
426 if ( mpWindowImpl->mbCompoundControl || ( rNEvt.GetWindow() == this ) )
427 {
428 if ( rNEvt.GetWindow() == this )
429 CallEventListeners( VclEventId::WindowMouseMove, const_cast<MouseEvent *>(rNEvt.GetMouseEvent()) );
430 else
431 {
432 MouseEvent aMouseEvent = ImplTranslateMouseEvent( *rNEvt.GetMouseEvent(), rNEvt.GetWindow(), this );
433 CallEventListeners( VclEventId::WindowMouseMove, &aMouseEvent );
434 }
435 }
436 }
437 else if( rNEvt.GetType() == MouseNotifyEvent::MOUSEBUTTONUP )
438 {
439 if ( mpWindowImpl->mbCompoundControl || ( rNEvt.GetWindow() == this ) )
440 {
441 if ( rNEvt.GetWindow() == this )
442 CallEventListeners( VclEventId::WindowMouseButtonUp, const_cast<MouseEvent *>(rNEvt.GetMouseEvent()) );
443 else
444 {
445 MouseEvent aMouseEvent = ImplTranslateMouseEvent( *rNEvt.GetMouseEvent(), rNEvt.GetWindow(), this );
446 CallEventListeners( VclEventId::WindowMouseButtonUp, &aMouseEvent );
447 }
448 }
449 }
450 else if( rNEvt.GetType() == MouseNotifyEvent::MOUSEBUTTONDOWN )
451 {
452 if ( mpWindowImpl->mbCompoundControl || ( rNEvt.GetWindow() == this ) )
453 {
454 if ( rNEvt.GetWindow() == this )
455 CallEventListeners( VclEventId::WindowMouseButtonDown, const_cast<MouseEvent *>(rNEvt.GetMouseEvent()) );
456 else
457 {
458 MouseEvent aMouseEvent = ImplTranslateMouseEvent( *rNEvt.GetMouseEvent(), rNEvt.GetWindow(), this );
459 CallEventListeners( VclEventId::WindowMouseButtonDown, &aMouseEvent );
460 }
461 }
462 }
463 else if( rNEvt.GetType() == MouseNotifyEvent::KEYINPUT )
464 {
465 if ( mpWindowImpl->mbCompoundControl || ( rNEvt.GetWindow() == this ) )
466 CallEventListeners( VclEventId::WindowKeyInput, const_cast<KeyEvent *>(rNEvt.GetKeyEvent()) );
467 }
468 else if( rNEvt.GetType() == MouseNotifyEvent::KEYUP )
469 {
470 if ( mpWindowImpl->mbCompoundControl || ( rNEvt.GetWindow() == this ) )
471 CallEventListeners( VclEventId::WindowKeyUp, const_cast<KeyEvent *>(rNEvt.GetKeyEvent()) );
472 }
473
474 if ( xWindow->IsDisposed() )
475 return;
476
477 // #106721# check if we're part of a compound control and notify
478 vcl::Window *pParent = ImplGetParent();
479 while( pParent )
480 {
481 if( pParent->IsCompoundControl() )
482 {
483 pParent->ImplNotifyKeyMouseCommandEventListeners( rNEvt );
484 break;
485 }
486 pParent = pParent->ImplGetParent();
487 }
488}
489
490void Window::ImplCallInitShow()
491{
492 mpWindowImpl->mbReallyShown = true;
493 mpWindowImpl->mbInInitShow = true;
494 CompatStateChanged( StateChangedType::InitShow );
495 mpWindowImpl->mbInInitShow = false;
496
497 vcl::Window* pWindow = mpWindowImpl->mpFirstOverlap;
498 while ( pWindow )
499 {
500 if ( pWindow->mpWindowImpl->mbVisible )
501 pWindow->ImplCallInitShow();
502 pWindow = pWindow->mpWindowImpl->mpNext;
503 }
504
505 pWindow = mpWindowImpl->mpFirstChild;
506 while ( pWindow )
507 {
508 if ( pWindow->mpWindowImpl->mbVisible )
509 pWindow->ImplCallInitShow();
510 pWindow = pWindow->mpWindowImpl->mpNext;
511 }
512}
513
514
515void Window::ImplCallResize()
516{
517 mpWindowImpl->mbCallResize = false;
518
519 // OpenGL has a charming feature of black clearing the whole window
520 // some legacy code eg. the app-menu has the beautiful feature of
521 // avoiding re-paints when width doesn't change => invalidate all.
522#if HAVE_FEATURE_OPENGL1
523 if( OpenGLWrapper::isVCLOpenGLEnabled() )
524 Invalidate();
525
526 // Normally we avoid blanking on re-size unless people might notice:
527 else
528#endif
529 if( GetBackground().IsGradient() )
530 Invalidate();
531
532 Resize();
533
534 // #88419# Most classes don't call the base class in Resize() and Move(),
535 // => Call ImpleResize/Move instead of Resize/Move directly...
536 CallEventListeners( VclEventId::WindowResize );
537}
538
539void Window::ImplCallMove()
540{
541 mpWindowImpl->mbCallMove = false;
542
543 if( mpWindowImpl->mbFrame )
1
Assuming field 'mbFrame' is false
→
2
←
Taking false branch
→
544 {
545 // update frame position
546 SalFrame *pParentFrame = nullptr;
547 vcl::Window *pParent = ImplGetParent();
548 while( pParent )
549 {
550 if( pParent->mpWindowImpl->mpFrame != mpWindowImpl->mpFrame )
551 {
552 pParentFrame = pParent->mpWindowImpl->mpFrame;
553 break;
554 }
555 pParent = pParent->GetParent();
556 }
557
558 SalFrameGeometry g = mpWindowImpl->mpFrame->GetGeometry();
559 mpWindowImpl->maPos = Point( g.nX, g.nY );
560 if( pParentFrame )
561 {
562 g = pParentFrame->GetGeometry();
563 mpWindowImpl->maPos -= Point( g.nX, g.nY );
564 }
565 // the client window and all its subclients have the same position as the borderframe
566 // this is important for floating toolbars where the borderwindow is a floating window
567 // which has another borderwindow (ie the system floating window)
568 vcl::Window *pClientWin = mpWindowImpl->mpClientWindow;
569 while( pClientWin )
570 {
571 pClientWin->mpWindowImpl->maPos = mpWindowImpl->maPos;
572 pClientWin = pClientWin->mpWindowImpl->mpClientWindow;
573 }
574 }
575
576 Move();
577
578 CallEventListeners( VclEventId::WindowMove );
3
←
Calling 'Window::CallEventListeners'
→
579}
580
581void Window::ImplCallFocusChangeActivate( vcl::Window* pNewOverlapWindow,
582 vcl::Window* pOldOverlapWindow )
583{
584 ImplSVData* pSVData = ImplGetSVData();
585 vcl::Window* pNewRealWindow;
586 vcl::Window* pOldRealWindow;
587 bool bCallActivate = true;
588 bool bCallDeactivate = true;
589
590 if (!pOldOverlapWindow)
591 {
592 return;
593 }
594
595 pOldRealWindow = pOldOverlapWindow->ImplGetWindow();
596 if (!pNewOverlapWindow)
597 {
598 return;
599 }
600
601 pNewRealWindow = pNewOverlapWindow->ImplGetWindow();
602 if ( (pOldRealWindow->GetType() != WindowType::FLOATINGWINDOW) ||
603 pOldRealWindow->GetActivateMode() != ActivateModeFlags::NONE )
604 {
605 if ( (pNewRealWindow->GetType() == WindowType::FLOATINGWINDOW) &&
606 pNewRealWindow->GetActivateMode() == ActivateModeFlags::NONE)
607 {
608 pSVData->mpWinData->mpLastDeacWin = pOldOverlapWindow;
609 bCallDeactivate = false;
610 }
611 }
612 else if ( (pNewRealWindow->GetType() != WindowType::FLOATINGWINDOW) ||
613 pNewRealWindow->GetActivateMode() != ActivateModeFlags::NONE )
614 {
615 if (pSVData->mpWinData->mpLastDeacWin)
616 {
617 if (pSVData->mpWinData->mpLastDeacWin.get() == pNewOverlapWindow)
618 bCallActivate = false;
619 else
620 {
621 vcl::Window* pLastRealWindow = pSVData->mpWinData->mpLastDeacWin->ImplGetWindow();
622 pSVData->mpWinData->mpLastDeacWin->mpWindowImpl->mbActive = false;
623 pSVData->mpWinData->mpLastDeacWin->Deactivate();
624 if (pLastRealWindow != pSVData->mpWinData->mpLastDeacWin.get())
625 {
626 pLastRealWindow->mpWindowImpl->mbActive = true;
627 pLastRealWindow->Activate();
628 }
629 }
630 pSVData->mpWinData->mpLastDeacWin = nullptr;
631 }
632 }
633
634 if ( bCallDeactivate )
635 {
636 if( pOldOverlapWindow->mpWindowImpl->mbActive )
637 {
638 pOldOverlapWindow->mpWindowImpl->mbActive = false;
639 pOldOverlapWindow->Deactivate();
640 }
641 if ( pOldRealWindow != pOldOverlapWindow )
642 {
643 if( pOldRealWindow->mpWindowImpl->mbActive )
644 {
645 pOldRealWindow->mpWindowImpl->mbActive = false;
646 pOldRealWindow->Deactivate();
647 }
648 }
649 }
650 if ( !bCallActivate || pNewOverlapWindow->mpWindowImpl->mbActive )
651 return;
652
653 pNewOverlapWindow->mpWindowImpl->mbActive = true;
654 pNewOverlapWindow->Activate();
655
656 if ( pNewRealWindow != pNewOverlapWindow )
657 {
658 if( ! pNewRealWindow->mpWindowImpl->mbActive )
659 {
660 pNewRealWindow->mpWindowImpl->mbActive = true;
661 pNewRealWindow->Activate();
662 }
663 }
664}
665
666} /* namespace vcl */
667
668
669NotifyEvent::NotifyEvent( MouseNotifyEvent nEventType, vcl::Window* pWindow,
670 const void* pEvent )
671{
672 mpWindow = pWindow;
673 mpData = const_cast<void*>(pEvent);
674 mnEventType = nEventType;
675}
676
677/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
←

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

→
1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#ifndef INCLUDED_VCL_PTR_HXX
21#define INCLUDED_VCL_PTR_HXX
22
23#include <sal/config.h>
24
25#include <rtl/ref.hxx>
26
27#include <utility>
28#include <type_traits>
29
30#ifdef DBG_UTIL
31#ifndef _WIN32
32#include <vcl/vclmain.hxx>
33#endif
34#endif
35
36class VclReferenceBase;
37
38namespace vcl::detail {
39
40template<typename>
41constexpr bool isIncompleteOrDerivedFromVclReferenceBase(...) { return true; }
42
43template<typename T> constexpr bool isIncompleteOrDerivedFromVclReferenceBase(
44 int (*)[sizeof(T)])
45{ return std::is_base_of<VclReferenceBase, T>::value; }
46
47} // namespace vcl::detail
48
49/**
50 * A thin wrapper around rtl::Reference to implement the acquire and dispose semantics we want for references to vcl::Window subclasses.
51 *
52 * For more details on the design please see vcl/README.lifecycle
53 *
54 * @param reference_type must be a subclass of vcl::Window
55 */
56template <class reference_type>
57class VclPtr
58{
59 static_assert(
60 vcl::detail::isIncompleteOrDerivedFromVclReferenceBase<reference_type>(
61 nullptr),
62 "template argument type must be derived from VclReferenceBase");
63
64 ::rtl::Reference<reference_type> m_rInnerRef;
65
66public:
67 /** Constructor...
68 */
69 VclPtr()
70 : m_rInnerRef()
71 {}
72
73 /** Constructor...
74 */
75 VclPtr (reference_type * pBody)
76 : m_rInnerRef(pBody)
77 {}
78
79 /** Constructor... that doesn't take a ref.
80 */
81 VclPtr (reference_type * pBody, __sal_NoAcquire)
82 : m_rInnerRef(pBody, SAL_NO_ACQUIRE)
83 {}
84
85 /** Up-casting conversion constructor: Copies interface reference.
86
87 Does not work for up-casts to ambiguous bases. For the special case of
88 up-casting to Reference< XInterface >, see the corresponding conversion
89 operator.
90
91 @param rRef another reference
92 */
93 template< class derived_type >
94 VclPtr(
95 const VclPtr< derived_type > & rRef,
96 typename std::enable_if<
97 std::is_base_of<reference_type, derived_type>::value, int>::type
98 = 0 )
99 : m_rInnerRef( static_cast<reference_type*>(rRef) )
100 {
101 }
102
103#if defined(DBG_UTIL) && !defined(_WIN32)
104 virtual ~VclPtr()
105 {
106 assert(m_rInnerRef.get() == nullptr || vclmain::isAlive())(static_cast <bool> (m_rInnerRef.get() == nullptr || vclmain
::isAlive()) ? void (0) : __assert_fail ("m_rInnerRef.get() == nullptr || vclmain::isAlive()"
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 106, __extension__ __PRETTY_FUNCTION__));
107 // We can be one of the intermediate counts, but if we are the last
108 // VclPtr keeping this object alive, then something forgot to call dispose().
109 assert((!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1)(static_cast <bool> ((!m_rInnerRef.get() || m_rInnerRef
->isDisposed() || m_rInnerRef->getRefCount() > 1) &&
"someone forgot to call dispose()") ? void (0) : __assert_fail
("(!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1) && \"someone forgot to call dispose()\""
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 110, __extension__ __PRETTY_FUNCTION__))
110 && "someone forgot to call dispose()")(static_cast <bool> ((!m_rInnerRef.get() || m_rInnerRef
->isDisposed() || m_rInnerRef->getRefCount() > 1) &&
"someone forgot to call dispose()") ? void (0) : __assert_fail
("(!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1) && \"someone forgot to call dispose()\""
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 110, __extension__ __PRETTY_FUNCTION__));
111 }
112 VclPtr(VclPtr const &) = default;
113 VclPtr(VclPtr &&) = default;
114 VclPtr & operator =(VclPtr const &) = default;
115 VclPtr & operator =(VclPtr &&) = default;
116#endif
117
118 /**
119 * A construction helper for VclPtr. Since VclPtr types are created
120 * with a reference-count of one - to help fit into the existing
121 * code-flow; this helps us to construct them easily.
122 *
123 * For more details on the design please see vcl/README.lifecycle
124 *
125 * @tparam reference_type must be a subclass of vcl::Window
126 */
127 template<typename... Arg> [[nodiscard]] static VclPtr< reference_type > Create(Arg &&... arg)
128 {
129 return VclPtr< reference_type >( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE );
130 }
131
132 /** Probably most common used: handle->someBodyOp().
133 */
134 reference_type * operator->() const
135 {
136 return m_rInnerRef.get();
137 }
138
139 /** Get the body. Can be used instead of operator->().
140 I.e. handle->someBodyOp() and handle.get()->someBodyOp()
141 are the same.
142 */
143 reference_type * get() const
144 {
145 return m_rInnerRef.get();
146 }
147
148 void set(reference_type *pBody)
149 {
150 m_rInnerRef.set(pBody);
151 }
152
153 void reset(reference_type *pBody)
154 {
155 m_rInnerRef.set(pBody);
156 }
157
158 /** Up-casting copy assignment operator.
159
160 Does not work for up-casts to ambiguous bases.
161
162 @param rRef another reference
163 */
164 template<typename derived_type>
165 typename std::enable_if<
166 std::is_base_of<reference_type, derived_type>::value,
167 VclPtr &>::type
168 operator =(VclPtr<derived_type> const & rRef)
169 {
170 m_rInnerRef.set(rRef.get());
171 return *this;
172 }
173
174 VclPtr & operator =(reference_type * pBody)
175 {
176 m_rInnerRef.set(pBody);
27
←
Calling 'Reference::set'
→
36
←
Returning; memory was released
→
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 ;-)
205 if (aTmp.get()) {
206 aTmp->disposeOnce();
207 }
208 }
209
210 /** Needed to place VclPtr's into STL collection.
211 */
212 bool operator< (const VclPtr<reference_type> & handle) const
213 {
214 return (m_rInnerRef < handle.m_rInnerRef);
215 }
216}; // class VclPtr
217
218template<typename T1, typename T2>
219inline bool operator ==(VclPtr<T1> const & p1, VclPtr<T2> const & p2) {
220 return p1.get() == p2.get();
221}
222
223template<typename T> inline bool operator ==(VclPtr<T> const & p1, T const * p2)
224{
225 return p1.get() == p2;
226}
227
228template<typename T> inline bool operator ==(VclPtr<T> const & p1, T * p2) {
229 return p1.get() == p2;
230}
231
232template<typename T> inline bool operator ==(T const * p1, VclPtr<T> const & p2)
233{
234 return p1 == p2.get();
235}
236
237template<typename T> inline bool operator ==(T * p1, VclPtr<T> const & p2) {
238 return p1 == p2.get();
239}
240
241template<typename T1, typename T2>
242inline bool operator !=(VclPtr<T1> const & p1, VclPtr<T2> const & p2) {
243 return !(p1 == p2);
244}
245
246template<typename T> inline bool operator !=(VclPtr<T> const & p1, T const * p2)
247{
248 return !(p1 == p2);
249}
250
251template<typename T> inline bool operator !=(VclPtr<T> const & p1, T * p2) {
252 return !(p1 == p2);
253}
254
255template<typename T> inline bool operator !=(T const * p1, VclPtr<T> const & p2)
256{
257 return !(p1 == p2);
258}
259
260template<typename T> inline bool operator !=(T * p1, VclPtr<T> const & p2) {
261 return !(p1 == p2);
262}
263
264/**
265 * A construction helper for a temporary VclPtr. Since VclPtr types
266 * are created with a reference-count of one - to help fit into
267 * the existing code-flow; this helps us to construct them easily.
268 * see also VclPtr::Create and ScopedVclPtr
269 *
270 * For more details on the design please see vcl/README.lifecycle
271 *
272 * @param reference_type must be a subclass of vcl::Window
273 */
274template <class reference_type>
275class SAL_WARN_UNUSED__attribute__((warn_unused)) VclPtrInstance final : public VclPtr<reference_type>
276{
277public:
278 template<typename... Arg> VclPtrInstance(Arg &&... arg)
279 : VclPtr<reference_type>( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE )
280 {
281 }
282
283 /**
284 * Override and disallow this, to prevent people accidentally calling it and actually
285 * getting VclPtr::Create and getting a naked VclPtr<> instance
286 */
287 template<typename... Arg> static VclPtrInstance< reference_type > Create(Arg &&... ) = delete;
288};
289
290template <class reference_type>
291class ScopedVclPtr : public VclPtr<reference_type>
292{
293public:
294 /** Constructor...
295 */
296 ScopedVclPtr()
297 : VclPtr<reference_type>()
298 {}
299
300 /** Constructor
301 */
302 ScopedVclPtr (reference_type * pBody)
303 : VclPtr<reference_type>(pBody)
304 {}
305
306 /** Copy constructor...
307 */
308 ScopedVclPtr (const VclPtr<reference_type> & handle)
309 : VclPtr<reference_type>(handle)
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)
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
46.1
Field 'm_pBody' is non-null
46.1
Field 'm_pBody' is non-null
46.1
Field 'm_pBody' is non-null
46.1
Field 'm_pBody' is non-null
)
47
←
Taking true branch
→
113 m_pBody->release();
48
←
Use of memory after it is freed
114 }
115
116 /** Set...
117 Similar to assignment.
118 */
119 Reference<reference_type> &
120 SAL_CALL set (reference_type * pBody)
121 {
122 if (pBody)
28
←
Assuming 'pBody' is non-null
→
29
←
Taking true branch
→
123 pBody->acquire();
124 reference_type * const pOld = m_pBody;
125 m_pBody = pBody;
126 if (pOld
29.1
'pOld' is non-null
29.1
'pOld' is non-null
29.1
'pOld' is non-null
29.1
'pOld' is non-null
)
30
←
Taking true branch
→
127 pOld->release();
31
←
Calling 'VclReferenceBase::release'
→
35
←
Returning; memory was released
→
128 return *this;
129 }
130
131 /** Assignment.
132 Unbinds this instance from its body (if bound) and
133 bind it to the body represented by the handle.
134 */
135 Reference<reference_type> &
136 SAL_CALL operator= (const Reference<reference_type> & handle)
137 {
138 return set( handle.m_pBody );
139 }
140
141#ifdef LIBO_INTERNAL_ONLY1
142 /** Assignment.
143 * Unbinds this instance from its body (if bound),
144 * bind it to the body represented by the handle, and
145 * set the body represented by the handle to nullptr.
146 */
147 Reference<reference_type> &
148 operator= (Reference<reference_type> && handle)
149 {
150 // self-movement guts ourself
151 if (m_pBody)
152 m_pBody->release();
153 m_pBody = handle.m_pBody;
154 handle.m_pBody = nullptr;
155 return *this;
156 }
157#endif
158
159 /** Assignment...
160 */
161 Reference<reference_type> &
162 SAL_CALL operator= (reference_type * pBody)
163 {
164 return set( pBody );
165 }
166
167 /** Unbind the body from this handle.
168 Note that for a handle representing a large body,
169 "handle.clear().set(new body());" _might_
170 perform a little bit better than "handle.set(new body());",
171 since in the second case two large objects exist in memory
172 (the old body and the new body).
173 */
174 Reference<reference_type> & SAL_CALL clear()
175 {
176 if (m_pBody)
177 {
178 reference_type * const pOld = m_pBody;
179 m_pBody = NULL__null;
180 pOld->release();
181 }
182 return *this;
183 }
184
185
186 /** Get the body. Can be used instead of operator->().
187 I.e. handle->someBodyOp() and handle.get()->someBodyOp()
188 are the same.
189 */
190 reference_type * SAL_CALL get() const
191 {
192 return m_pBody;
193 }
194
195
196 /** Probably most common used: handle->someBodyOp().
197 */
198 reference_type * SAL_CALL operator->() const
199 {
200 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 200, __extension__ __PRETTY_FUNCTION__));
201 return m_pBody;
202 }
203
204
205 /** Allows (*handle).someBodyOp().
206 */
207 reference_type & SAL_CALL operator*() const
208 {
209 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 209, __extension__ __PRETTY_FUNCTION__));
210 return *m_pBody;
211 }
212
213
214 /** Returns True if the handle does point to a valid body.
215 */
216 bool SAL_CALL is() const
217 {
218 return (m_pBody != NULL__null);
219 }
220
221#if defined LIBO_INTERNAL_ONLY1
222 /** Returns True if the handle does point to a valid body.
223 */
224 explicit operator bool() const
225 {
226 return is();
227 }
228#endif
229
230 /** Returns True if this points to pBody.
231 */
232 bool SAL_CALL operator== (const reference_type * pBody) const
233 {
234 return (m_pBody == pBody);
235 }
236
237
238 /** Returns True if handle points to the same body.
239 */
240 bool
241 SAL_CALL operator== (const Reference<reference_type> & handle) const
242 {
243 return (m_pBody == handle.m_pBody);
244 }
245
246
247 /** Needed to place References into STL collection.
248 */
249 bool
250 SAL_CALL operator!= (const Reference<reference_type> & handle) const
251 {
252 return (m_pBody != handle.m_pBody);
253 }
254
255
256 /** Needed to place References into STL collection.
257 */
258 bool
259 SAL_CALL operator< (const Reference<reference_type> & handle) const
260 {
261 return (m_pBody < handle.m_pBody);
262 }
263
264
265 /** Needed to place References into STL collection.
266 */
267 bool
268 SAL_CALL operator> (const Reference<reference_type> & handle) const
269 {
270 return (m_pBody > handle.m_pBody);
271 }
272};
273
274} // namespace rtl
275
276#if defined LIBO_INTERNAL_ONLY1
277namespace std
278{
279
280/// @cond INTERNAL
281/**
282 Make rtl::Reference hashable by default for use in STL containers.
283
284 @since LibreOffice 6.3
285*/
286template<typename T>
287struct hash<::rtl::Reference<T>>
288{
289 std::size_t operator()(::rtl::Reference<T> const & s) const
290 { return std::size_t(s.get()); }
291};
292/// @endcond
293
294}
295
296#endif
297
298#endif /* ! INCLUDED_RTL_REF_HXX */
299
300/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
←

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

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19#ifndef INCLUDED_VCL_Reference_HXX
20#define INCLUDED_VCL_Reference_HXX
21
22#include <vcl/dllapi.h>
23#include <osl/interlck.h>
24
25class VCL_DLLPUBLIC__attribute__ ((visibility("default"))) VclReferenceBase
26{
27 mutable oslInterlockedCount mnRefCnt;
28
29 template<typename T> friend class VclPtr;
30
31public:
32 void acquire() const
33 {
34 osl_atomic_increment(&mnRefCnt)__sync_add_and_fetch((&mnRefCnt), 1);
35 }
36
37 void release() const
38 {
39 if (osl_atomic_decrement(&mnRefCnt)__sync_sub_and_fetch((&mnRefCnt), 1) == 0)
32
←
Assuming the condition is true
→
33
←
Taking true branch
→
40 delete this;
34
←
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