Bug Summary

File:home/maarten/src/libreoffice/core/include/rtl/ref.hxx
Warning:line 127, 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 stacking.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/stacking.cxx

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

→
1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#include <vcl/syswin.hxx>
21#include <vcl/window.hxx>
22#include <vcl/taskpanelist.hxx>
23#include <sal/log.hxx>
24
25#include <salframe.hxx>
26#include <salobj.hxx>
27#include <svdata.hxx>
28#include <window.h>
29#include <brdwin.hxx>
30
31#include <com/sun/star/awt/XTopWindow.hpp>
32
33using namespace ::com::sun::star::uno;
34using namespace ::com::sun::star::lang;
35using namespace ::com::sun::star::datatransfer::clipboard;
36using namespace ::com::sun::star::datatransfer::dnd;
37using namespace ::com::sun::star;
38
39using ::com::sun::star::awt::XTopWindow;
40
41struct ImplCalcToTopData
42{
43 std::unique_ptr<ImplCalcToTopData> mpNext;
44 VclPtr<vcl::Window> mpWindow;
45 std::unique_ptr<vcl::Region> mpInvalidateRegion;
46};
47
48namespace vcl {
49
50vcl::Window* Window::ImplGetTopmostFrameWindow()
51{
52 vcl::Window *pTopmostParent = this;
53 while( pTopmostParent->ImplGetParent() )
54 pTopmostParent = pTopmostParent->ImplGetParent();
55 return pTopmostParent->mpWindowImpl->mpFrameWindow;
56}
57
58void Window::ImplInsertWindow( vcl::Window* pParent )
59{
60 mpWindowImpl->mpParent = pParent;
61 mpWindowImpl->mpRealParent = pParent;
62
63 if ( !pParent || mpWindowImpl->mbFrame )
64 return;
65
66 // search frame window and set window frame data
67 vcl::Window* pFrameParent = pParent->mpWindowImpl->mpFrameWindow;
68 mpWindowImpl->mpFrameData = pFrameParent->mpWindowImpl->mpFrameData;
69 if (mpWindowImpl->mpFrame != pFrameParent->mpWindowImpl->mpFrame)
70 {
71 mpWindowImpl->mpFrame = pFrameParent->mpWindowImpl->mpFrame;
72 if (mpWindowImpl->mpSysObj)
73 mpWindowImpl->mpSysObj->Reparent(mpWindowImpl->mpFrame);
74 }
75 mpWindowImpl->mpFrameWindow = pFrameParent;
76 mpWindowImpl->mbFrame = false;
77
78 // search overlap window and insert window in list
79 if ( ImplIsOverlapWindow() )
80 {
81 vcl::Window* pFirstOverlapParent = pParent;
82 while ( !pFirstOverlapParent->ImplIsOverlapWindow() )
83 pFirstOverlapParent = pFirstOverlapParent->ImplGetParent();
84 mpWindowImpl->mpOverlapWindow = pFirstOverlapParent;
85
86 mpWindowImpl->mpNextOverlap = mpWindowImpl->mpFrameData->mpFirstOverlap;
87 mpWindowImpl->mpFrameData->mpFirstOverlap = this;
88
89 // Overlap-Windows are by default the uppermost
90 mpWindowImpl->mpNext = pFirstOverlapParent->mpWindowImpl->mpFirstOverlap;
91 pFirstOverlapParent->mpWindowImpl->mpFirstOverlap = this;
92 if ( !pFirstOverlapParent->mpWindowImpl->mpLastOverlap )
93 pFirstOverlapParent->mpWindowImpl->mpLastOverlap = this;
94 else
95 mpWindowImpl->mpNext->mpWindowImpl->mpPrev = this;
96 }
97 else
98 {
99 if ( pParent->ImplIsOverlapWindow() )
100 mpWindowImpl->mpOverlapWindow = pParent;
101 else
102 mpWindowImpl->mpOverlapWindow = pParent->mpWindowImpl->mpOverlapWindow;
103 mpWindowImpl->mpPrev = pParent->mpWindowImpl->mpLastChild;
104 pParent->mpWindowImpl->mpLastChild = this;
105 if ( !pParent->mpWindowImpl->mpFirstChild )
106 pParent->mpWindowImpl->mpFirstChild = this;
107 else
108 mpWindowImpl->mpPrev->mpWindowImpl->mpNext = this;
109 }
110}
111
112void Window::ImplRemoveWindow( bool bRemoveFrameData )
113{
114 // remove window from the lists
115 if ( !mpWindowImpl->mbFrame )
4
←
Assuming field 'mbFrame' is false
→
5
←
Taking true branch
→
116 {
117 if ( ImplIsOverlapWindow() )
6
←
Assuming the condition is false
→
7
←
Taking false branch
→
118 {
119 if ( mpWindowImpl->mpFrameData->mpFirstOverlap.get() == this )
120 mpWindowImpl->mpFrameData->mpFirstOverlap = mpWindowImpl->mpNextOverlap;
121 else
122 {
123 vcl::Window* pTempWin = mpWindowImpl->mpFrameData->mpFirstOverlap;
124 while ( pTempWin->mpWindowImpl->mpNextOverlap.get() != this )
125 pTempWin = pTempWin->mpWindowImpl->mpNextOverlap;
126 pTempWin->mpWindowImpl->mpNextOverlap = mpWindowImpl->mpNextOverlap;
127 }
128
129 if ( mpWindowImpl->mpPrev )
130 mpWindowImpl->mpPrev->mpWindowImpl->mpNext = mpWindowImpl->mpNext;
131 else
132 mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpFirstOverlap = mpWindowImpl->mpNext;
133 if ( mpWindowImpl->mpNext )
134 mpWindowImpl->mpNext->mpWindowImpl->mpPrev = mpWindowImpl->mpPrev;
135 else
136 mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpLastOverlap = mpWindowImpl->mpPrev;
137 }
138 else
139 {
140 if ( mpWindowImpl->mpPrev )
8
←
Taking true branch
→
141 mpWindowImpl->mpPrev->mpWindowImpl->mpNext = mpWindowImpl->mpNext;
142 else if ( mpWindowImpl->mpParent )
143 mpWindowImpl->mpParent->mpWindowImpl->mpFirstChild = mpWindowImpl->mpNext;
144 if ( mpWindowImpl->mpNext )
9
←
Taking false branch
→
145 mpWindowImpl->mpNext->mpWindowImpl->mpPrev = mpWindowImpl->mpPrev;
146 else if ( mpWindowImpl->mpParent )
10
←
Taking true branch
→
147 mpWindowImpl->mpParent->mpWindowImpl->mpLastChild = mpWindowImpl->mpPrev;
148 }
149
150 mpWindowImpl->mpPrev = nullptr;
11
←
Calling 'VclPtr::operator='
→
21
←
Returning; memory was released
→
151 mpWindowImpl->mpNext = nullptr;
152 }
153
154 if ( bRemoveFrameData
21.1
'bRemoveFrameData' is false
21.1
'bRemoveFrameData' is false
21.1
'bRemoveFrameData' is false
21.1
'bRemoveFrameData' is false
 )
22
←
Taking false branch
→
155 {
156 // release the graphic
157 OutputDevice *pOutDev = GetOutDev();
158 pOutDev->ReleaseGraphics();
159 }
160}
161
162void Window::reorderWithinParent(sal_uInt16 nNewPosition)
163{
164 sal_uInt16 nChildCount = 0;
165 vcl::Window *pSource = mpWindowImpl->mpParent->mpWindowImpl->mpFirstChild;
166 while (pSource)
1
Loop condition is false. Execution continues on line 174
→
167 {
168 if (nChildCount == nNewPosition)
169 break;
170 pSource = pSource->mpWindowImpl->mpNext;
171 nChildCount++;
172 }
173
174 if (pSource == this) //already at the right place
2
←
Taking false branch
→
175 return;
176
177 ImplRemoveWindow(false);
3
←
Calling 'Window::ImplRemoveWindow'
→
23
←
Returning; memory was released
→
178
179 if (pSource
23.1
'pSource' is null
23.1
'pSource' is null
23.1
'pSource' is null
23.1
'pSource' is null
)
24
←
Taking false branch
→
180 {
181 mpWindowImpl->mpNext = pSource;
182 mpWindowImpl->mpPrev = pSource->mpWindowImpl->mpPrev;
183 pSource->mpWindowImpl->mpPrev = this;
184 }
185 else
186 mpWindowImpl->mpParent->mpWindowImpl->mpLastChild = this;
25
←
Calling 'VclPtr::operator='
→
187
188 if (mpWindowImpl->mpPrev)
189 mpWindowImpl->mpPrev->mpWindowImpl->mpNext = this;
190 else
191 mpWindowImpl->mpParent->mpWindowImpl->mpFirstChild = this;
192}
193
194void Window::ImplToBottomChild()
195{
196 if ( ImplIsOverlapWindow() || mpWindowImpl->mbReallyVisible || (mpWindowImpl->mpParent->mpWindowImpl->mpLastChild.get() == this) )
197 return;
198
199 // put the window to the end of the list
200 if ( mpWindowImpl->mpPrev )
201 mpWindowImpl->mpPrev->mpWindowImpl->mpNext = mpWindowImpl->mpNext;
202 else
203 mpWindowImpl->mpParent->mpWindowImpl->mpFirstChild = mpWindowImpl->mpNext;
204 mpWindowImpl->mpNext->mpWindowImpl->mpPrev = mpWindowImpl->mpPrev;
205 mpWindowImpl->mpPrev = mpWindowImpl->mpParent->mpWindowImpl->mpLastChild;
206 mpWindowImpl->mpParent->mpWindowImpl->mpLastChild = this;
207 mpWindowImpl->mpPrev->mpWindowImpl->mpNext = this;
208 mpWindowImpl->mpNext = nullptr;
209}
210
211void Window::ImplCalcToTop( ImplCalcToTopData* pPrevData )
212{
213 SAL_WARN_IF( !ImplIsOverlapWindow(), "vcl", "Window::ImplCalcToTop(): Is not an OverlapWindow" )do { if (true && (!ImplIsOverlapWindow())) { 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::ImplCalcToTop(): Is not an OverlapWindow"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "213" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::ImplCalcToTop(): Is not an OverlapWindow"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::ImplCalcToTop(): Is not an OverlapWindow";
::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"), (
"/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "213" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Window::ImplCalcToTop(): Is not an OverlapWindow"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "213" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::ImplCalcToTop(): Is not an OverlapWindow"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::ImplCalcToTop(): Is not an OverlapWindow";
::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"), (
"/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "213" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
214
215 if ( mpWindowImpl->mbFrame )
216 return;
217
218 if ( !IsReallyVisible() )
219 return;
220
221 // calculate region, where the window overlaps with other windows
222 Point aPoint( mnOutOffX, mnOutOffY );
223 vcl::Region aRegion( tools::Rectangle( aPoint,
224 Size( mnOutWidth, mnOutHeight ) ) );
225 vcl::Region aInvalidateRegion;
226 ImplCalcOverlapRegionOverlaps( aRegion, aInvalidateRegion );
227
228 if ( !aInvalidateRegion.IsEmpty() )
229 {
230 ImplCalcToTopData* pData = new ImplCalcToTopData;
231 pPrevData->mpNext.reset(pData);
232 pData->mpWindow = this;
233 pData->mpInvalidateRegion.reset(new vcl::Region( aInvalidateRegion ));
234 }
235}
236
237void Window::ImplToTop( ToTopFlags nFlags )
238{
239 SAL_WARN_IF( !ImplIsOverlapWindow(), "vcl", "Window::ImplToTop(): Is not an OverlapWindow" )do { if (true && (!ImplIsOverlapWindow())) { 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::ImplToTop(): Is not an OverlapWindow") ==
1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "239" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::ImplToTop(): Is not an OverlapWindow"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::ImplToTop(): Is not an OverlapWindow"; ::sal
::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "239" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Window::ImplToTop(): Is not an OverlapWindow") ==
1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "239" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::ImplToTop(): Is not an OverlapWindow"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::ImplToTop(): Is not an OverlapWindow"; ::sal
::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "239" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
240
241 if ( mpWindowImpl->mbFrame )
242 {
243 // on a mouse click in the external window, it is the latter's
244 // responsibility to assure our frame is put in front
245 if ( !mpWindowImpl->mpFrameData->mbHasFocus &&
246 !mpWindowImpl->mpFrameData->mbSysObjFocus &&
247 !mpWindowImpl->mpFrameData->mbInSysObjFocusHdl &&
248 !mpWindowImpl->mpFrameData->mbInSysObjToTopHdl )
249 {
250 // do not bring floating windows on the client to top
251 if( !ImplGetClientWindow() || !(ImplGetClientWindow()->GetStyle() & WB_SYSTEMFLOATWIN) )
252 {
253 SalFrameToTop nSysFlags = SalFrameToTop::NONE;
254 if ( nFlags & ToTopFlags::RestoreWhenMin )
255 nSysFlags |= SalFrameToTop::RestoreWhenMin;
256 if ( nFlags & ToTopFlags::ForegroundTask )
257 nSysFlags |= SalFrameToTop::ForegroundTask;
258 if ( nFlags & ToTopFlags::GrabFocusOnly )
259 nSysFlags |= SalFrameToTop::GrabFocusOnly;
260 mpWindowImpl->mpFrame->ToTop( nSysFlags );
261 }
262 }
263 }
264 else
265 {
266 if ( mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpFirstOverlap.get() != this )
267 {
268 // remove window from the list
269 mpWindowImpl->mpPrev->mpWindowImpl->mpNext = mpWindowImpl->mpNext;
270 if ( mpWindowImpl->mpNext )
271 mpWindowImpl->mpNext->mpWindowImpl->mpPrev = mpWindowImpl->mpPrev;
272 else
273 mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpLastOverlap = mpWindowImpl->mpPrev;
274
275 // take AlwaysOnTop into account
276 bool bOnTop = IsAlwaysOnTopEnabled();
277 vcl::Window* pNextWin = mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpFirstOverlap;
278 if ( !bOnTop )
279 {
280 while ( pNextWin )
281 {
282 if ( !pNextWin->IsAlwaysOnTopEnabled() )
283 break;
284 pNextWin = pNextWin->mpWindowImpl->mpNext;
285 }
286 }
287
288 // add the window to the list again
289 mpWindowImpl->mpNext = pNextWin;
290 if ( pNextWin )
291 {
292 mpWindowImpl->mpPrev = pNextWin->mpWindowImpl->mpPrev;
293 pNextWin->mpWindowImpl->mpPrev = this;
294 }
295 else
296 {
297 mpWindowImpl->mpPrev = mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpLastOverlap;
298 mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpLastOverlap = this;
299 }
300 if ( mpWindowImpl->mpPrev )
301 mpWindowImpl->mpPrev->mpWindowImpl->mpNext = this;
302 else
303 mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpFirstOverlap = this;
304
305 // recalculate ClipRegion of this and all overlapping windows
306 if ( IsReallyVisible() )
307 {
308 mpWindowImpl->mpOverlapWindow->ImplSetClipFlagOverlapWindows();
309 }
310 }
311 }
312}
313
314void Window::ImplStartToTop( ToTopFlags nFlags )
315{
316 ImplCalcToTopData aStartData;
317 ImplCalcToTopData* pCurData;
318 vcl::Window* pOverlapWindow;
319 if ( ImplIsOverlapWindow() )
320 pOverlapWindow = this;
321 else
322 pOverlapWindow = mpWindowImpl->mpOverlapWindow;
323
324 // first calculate paint areas
325 vcl::Window* pTempOverlapWindow = pOverlapWindow;
326 aStartData.mpNext = nullptr;
327 pCurData = &aStartData;
328 do
329 {
330 pTempOverlapWindow->ImplCalcToTop( pCurData );
331 if ( pCurData->mpNext )
332 pCurData = pCurData->mpNext.get();
333 pTempOverlapWindow = pTempOverlapWindow->mpWindowImpl->mpOverlapWindow;
334 }
335 while ( !pTempOverlapWindow->mpWindowImpl->mbFrame );
336 // next calculate the paint areas of the ChildOverlap windows
337 pTempOverlapWindow = mpWindowImpl->mpFirstOverlap;
338 while ( pTempOverlapWindow )
339 {
340 pTempOverlapWindow->ImplCalcToTop( pCurData );
341 if ( pCurData->mpNext )
342 pCurData = pCurData->mpNext.get();
343 pTempOverlapWindow = pTempOverlapWindow->mpWindowImpl->mpNext;
344 }
345
346 // and next change the windows list
347 pTempOverlapWindow = pOverlapWindow;
348 do
349 {
350 pTempOverlapWindow->ImplToTop( nFlags );
351 pTempOverlapWindow = pTempOverlapWindow->mpWindowImpl->mpOverlapWindow;
352 }
353 while ( !pTempOverlapWindow->mpWindowImpl->mbFrame );
354 // as last step invalidate the invalid areas
355 pCurData = aStartData.mpNext.get();
356 while ( pCurData )
357 {
358 pCurData->mpWindow->ImplInvalidateFrameRegion( pCurData->mpInvalidateRegion.get(), InvalidateFlags::Children );
359 pCurData = pCurData->mpNext.get();
360 }
361}
362
363void Window::ImplFocusToTop( ToTopFlags nFlags, bool bReallyVisible )
364{
365 // do we need to fetch the focus?
366 if ( !(nFlags & ToTopFlags::NoGrabFocus) )
367 {
368 // first window with GrabFocus-Activate gets the focus
369 vcl::Window* pFocusWindow = this;
370 while ( !pFocusWindow->ImplIsOverlapWindow() )
371 {
372 // if the window has no BorderWindow, we
373 // should always find the belonging BorderWindow
374 if ( !pFocusWindow->mpWindowImpl->mpBorderWindow )
375 {
376 if ( pFocusWindow->mpWindowImpl->mnActivateMode & ActivateModeFlags::GrabFocus )
377 break;
378 }
379 pFocusWindow = pFocusWindow->ImplGetParent();
380 }
381 if ( (pFocusWindow->mpWindowImpl->mnActivateMode & ActivateModeFlags::GrabFocus) &&
382 !pFocusWindow->HasChildPathFocus( true ) )
383 pFocusWindow->GrabFocus();
384 }
385
386 if ( bReallyVisible )
387 ImplGenerateMouseMove();
388}
389
390void Window::ImplShowAllOverlaps()
391{
392 vcl::Window* pOverlapWindow = mpWindowImpl->mpFirstOverlap;
393 while ( pOverlapWindow )
394 {
395 if ( pOverlapWindow->mpWindowImpl->mbOverlapVisible )
396 {
397 pOverlapWindow->Show( true, ShowFlags::NoActivate );
398 pOverlapWindow->mpWindowImpl->mbOverlapVisible = false;
399 }
400
401 pOverlapWindow = pOverlapWindow->mpWindowImpl->mpNext;
402 }
403}
404
405void Window::ImplHideAllOverlaps()
406{
407 vcl::Window* pOverlapWindow = mpWindowImpl->mpFirstOverlap;
408 while ( pOverlapWindow )
409 {
410 if ( pOverlapWindow->IsVisible() )
411 {
412 pOverlapWindow->mpWindowImpl->mbOverlapVisible = true;
413 pOverlapWindow->Show( false );
414 }
415
416 pOverlapWindow = pOverlapWindow->mpWindowImpl->mpNext;
417 }
418}
419
420void Window::ToTop( ToTopFlags nFlags )
421{
422 if (!mpWindowImpl)
423 return;
424
425 ImplStartToTop( nFlags );
426 ImplFocusToTop( nFlags, IsReallyVisible() );
427}
428
429void Window::SetZOrder( vcl::Window* pRefWindow, ZOrderFlags nFlags )
430{
431
432 if ( mpWindowImpl->mpBorderWindow )
433 {
434 mpWindowImpl->mpBorderWindow->SetZOrder( pRefWindow, nFlags );
435 return;
436 }
437
438 if ( nFlags & ZOrderFlags::First )
439 {
440 if ( ImplIsOverlapWindow() )
441 pRefWindow = mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpFirstOverlap;
442 else
443 pRefWindow = mpWindowImpl->mpParent->mpWindowImpl->mpFirstChild;
444 nFlags |= ZOrderFlags::Before;
445 }
446 else if ( nFlags & ZOrderFlags::Last )
447 {
448 if ( ImplIsOverlapWindow() )
449 pRefWindow = mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpLastOverlap;
450 else
451 pRefWindow = mpWindowImpl->mpParent->mpWindowImpl->mpLastChild;
452 nFlags |= ZOrderFlags::Behind;
453 }
454
455 while ( pRefWindow && pRefWindow->mpWindowImpl->mpBorderWindow )
456 pRefWindow = pRefWindow->mpWindowImpl->mpBorderWindow;
457 if (!pRefWindow || pRefWindow == this || mpWindowImpl->mbFrame)
458 return;
459
460 SAL_WARN_IF( pRefWindow->mpWindowImpl->mpParent != mpWindowImpl->mpParent, "vcl", "Window::SetZOrder() - pRefWindow has other parent" )do { if (true && (pRefWindow->mpWindowImpl->mpParent
!= mpWindowImpl->mpParent)) { 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::SetZOrder() - pRefWindow has other parent"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "460" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::SetZOrder() - pRefWindow has other parent"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::SetZOrder() - pRefWindow has other parent"
; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"),
("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "460" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Window::SetZOrder() - pRefWindow has other parent"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "460" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::SetZOrder() - pRefWindow has other parent"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::SetZOrder() - pRefWindow has other parent"
; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"),
("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "460" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
461 if ( nFlags & ZOrderFlags::Before )
462 {
463 if ( pRefWindow->mpWindowImpl->mpPrev.get() == this )
464 return;
465
466 if ( ImplIsOverlapWindow() )
467 {
468 if ( mpWindowImpl->mpPrev )
469 mpWindowImpl->mpPrev->mpWindowImpl->mpNext = mpWindowImpl->mpNext;
470 else
471 mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpFirstOverlap = mpWindowImpl->mpNext;
472 if ( mpWindowImpl->mpNext )
473 mpWindowImpl->mpNext->mpWindowImpl->mpPrev = mpWindowImpl->mpPrev;
474 else
475 mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpLastOverlap = mpWindowImpl->mpPrev;
476 if ( !pRefWindow->mpWindowImpl->mpPrev )
477 mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpFirstOverlap = this;
478 }
479 else
480 {
481 if ( mpWindowImpl->mpPrev )
482 mpWindowImpl->mpPrev->mpWindowImpl->mpNext = mpWindowImpl->mpNext;
483 else
484 mpWindowImpl->mpParent->mpWindowImpl->mpFirstChild = mpWindowImpl->mpNext;
485 if ( mpWindowImpl->mpNext )
486 mpWindowImpl->mpNext->mpWindowImpl->mpPrev = mpWindowImpl->mpPrev;
487 else
488 mpWindowImpl->mpParent->mpWindowImpl->mpLastChild = mpWindowImpl->mpPrev;
489 if ( !pRefWindow->mpWindowImpl->mpPrev )
490 mpWindowImpl->mpParent->mpWindowImpl->mpFirstChild = this;
491 }
492
493 mpWindowImpl->mpPrev = pRefWindow->mpWindowImpl->mpPrev;
494 mpWindowImpl->mpNext = pRefWindow;
495 if ( mpWindowImpl->mpPrev )
496 mpWindowImpl->mpPrev->mpWindowImpl->mpNext = this;
497 mpWindowImpl->mpNext->mpWindowImpl->mpPrev = this;
498 }
499 else if ( nFlags & ZOrderFlags::Behind )
500 {
501 if ( pRefWindow->mpWindowImpl->mpNext.get() == this )
502 return;
503
504 if ( ImplIsOverlapWindow() )
505 {
506 if ( mpWindowImpl->mpPrev )
507 mpWindowImpl->mpPrev->mpWindowImpl->mpNext = mpWindowImpl->mpNext;
508 else
509 mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpFirstOverlap = mpWindowImpl->mpNext;
510 if ( mpWindowImpl->mpNext )
511 mpWindowImpl->mpNext->mpWindowImpl->mpPrev = mpWindowImpl->mpPrev;
512 else
513 mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpLastOverlap = mpWindowImpl->mpPrev;
514 if ( !pRefWindow->mpWindowImpl->mpNext )
515 mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpLastOverlap = this;
516 }
517 else
518 {
519 if ( mpWindowImpl->mpPrev )
520 mpWindowImpl->mpPrev->mpWindowImpl->mpNext = mpWindowImpl->mpNext;
521 else
522 mpWindowImpl->mpParent->mpWindowImpl->mpFirstChild = mpWindowImpl->mpNext;
523 if ( mpWindowImpl->mpNext )
524 mpWindowImpl->mpNext->mpWindowImpl->mpPrev = mpWindowImpl->mpPrev;
525 else
526 mpWindowImpl->mpParent->mpWindowImpl->mpLastChild = mpWindowImpl->mpPrev;
527 if ( !pRefWindow->mpWindowImpl->mpNext )
528 mpWindowImpl->mpParent->mpWindowImpl->mpLastChild = this;
529 }
530
531 mpWindowImpl->mpPrev = pRefWindow;
532 mpWindowImpl->mpNext = pRefWindow->mpWindowImpl->mpNext;
533 if ( mpWindowImpl->mpNext )
534 mpWindowImpl->mpNext->mpWindowImpl->mpPrev = this;
535 mpWindowImpl->mpPrev->mpWindowImpl->mpNext = this;
536 }
537
538 if ( !IsReallyVisible() )
539 return;
540
541 if ( !mpWindowImpl->mbInitWinClipRegion && mpWindowImpl->maWinClipRegion.IsEmpty() )
542 return;
543
544 bool bInitWinClipRegion = mpWindowImpl->mbInitWinClipRegion;
545 ImplSetClipFlag();
546
547 // When ClipRegion was not initialised, assume
548 // the window has not been sent, therefore do not
549 // trigger any Invalidates. This is an optimization
550 // for HTML documents with many controls. If this
551 // check gives problems, a flag should be introduced
552 // which tracks whether the window has already been
553 // emitted after Show
554 if ( bInitWinClipRegion )
555 return;
556
557 // Invalidate all windows which are next to each other
558 // Is INCOMPLETE !!!
559 tools::Rectangle aWinRect( Point( mnOutOffX, mnOutOffY ), Size( mnOutWidth, mnOutHeight ) );
560 vcl::Window* pWindow = nullptr;
561 if ( ImplIsOverlapWindow() )
562 {
563 if ( mpWindowImpl->mpOverlapWindow )
564 pWindow = mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpFirstOverlap;
565 }
566 else
567 pWindow = ImplGetParent()->mpWindowImpl->mpFirstChild;
568 // Invalidate all windows in front of us and which are covered by us
569 while ( pWindow )
570 {
571 if ( pWindow == this )
572 break;
573 tools::Rectangle aCompRect( Point( pWindow->mnOutOffX, pWindow->mnOutOffY ),
574 Size( pWindow->mnOutWidth, pWindow->mnOutHeight ) );
575 if ( aWinRect.IsOver( aCompRect ) )
576 pWindow->Invalidate( InvalidateFlags::Children | InvalidateFlags::NoTransparent );
577 pWindow = pWindow->mpWindowImpl->mpNext;
578 }
579
580 // If we are covered by a window in the background
581 // we should redraw it
582 while ( pWindow )
583 {
584 if ( pWindow != this )
585 {
586 tools::Rectangle aCompRect( Point( pWindow->mnOutOffX, pWindow->mnOutOffY ),
587 Size( pWindow->mnOutWidth, pWindow->mnOutHeight ) );
588 if ( aWinRect.IsOver( aCompRect ) )
589 {
590 Invalidate( InvalidateFlags::Children | InvalidateFlags::NoTransparent );
591 break;
592 }
593 }
594 pWindow = pWindow->mpWindowImpl->mpNext;
595 }
596}
597
598void Window::EnableAlwaysOnTop( bool bEnable )
599{
600
601 mpWindowImpl->mbAlwaysOnTop = bEnable;
602
603 if ( mpWindowImpl->mpBorderWindow )
604 mpWindowImpl->mpBorderWindow->EnableAlwaysOnTop( bEnable );
605 else if ( bEnable && IsReallyVisible() )
606 ToTop();
607
608 if ( mpWindowImpl->mbFrame )
609 mpWindowImpl->mpFrame->SetAlwaysOnTop( bEnable );
610}
611
612bool Window::IsTopWindow() const
613{
614 if ( !mpWindowImpl || mpWindowImpl->mbInDispose )
615 return false;
616
617 // topwindows must be frames or they must have a borderwindow which is a frame
618 if( !mpWindowImpl->mbFrame && (!mpWindowImpl->mpBorderWindow || !mpWindowImpl->mpBorderWindow->mpWindowImpl->mbFrame ) )
619 return false;
620
621 ImplGetWinData();
622 if( mpWindowImpl->mpWinData->mnIsTopWindow == sal_uInt16(~0)) // still uninitialized
623 {
624 // #113722#, cache result of expensive queryInterface call
625 vcl::Window *pThisWin = const_cast<vcl::Window*>(this);
626 uno::Reference< XTopWindow > xTopWindow( pThisWin->GetComponentInterface(), UNO_QUERY );
627 pThisWin->mpWindowImpl->mpWinData->mnIsTopWindow = xTopWindow.is() ? 1 : 0;
628 }
629 return mpWindowImpl->mpWinData->mnIsTopWindow == 1;
630}
631
632vcl::Window* Window::ImplFindWindow( const Point& rFramePos )
633{
634 vcl::Window* pTempWindow;
635 vcl::Window* pFindWindow;
636
637 // first check all overlapping windows
638 pTempWindow = mpWindowImpl->mpFirstOverlap;
639 while ( pTempWindow )
640 {
641 pFindWindow = pTempWindow->ImplFindWindow( rFramePos );
642 if ( pFindWindow )
643 return pFindWindow;
644 pTempWindow = pTempWindow->mpWindowImpl->mpNext;
645 }
646
647 // then we check our window
648 if ( !mpWindowImpl->mbVisible )
649 return nullptr;
650
651 WindowHitTest nHitTest = ImplHitTest( rFramePos );
652 if ( nHitTest & WindowHitTest::Inside )
653 {
654 // and then we check all child windows
655 pTempWindow = mpWindowImpl->mpFirstChild;
656 while ( pTempWindow )
657 {
658 pFindWindow = pTempWindow->ImplFindWindow( rFramePos );
659 if ( pFindWindow )
660 return pFindWindow;
661 pTempWindow = pTempWindow->mpWindowImpl->mpNext;
662 }
663
664 if ( nHitTest & WindowHitTest::Transparent )
665 return nullptr;
666 else
667 return this;
668 }
669
670 return nullptr;
671}
672
673bool Window::ImplIsRealParentPath( const vcl::Window* pWindow ) const
674{
675 pWindow = pWindow->GetParent();
676 while ( pWindow )
677 {
678 if ( pWindow == this )
679 return true;
680 pWindow = pWindow->GetParent();
681 }
682
683 return false;
684}
685
686bool Window::ImplIsChild( const vcl::Window* pWindow, bool bSystemWindow ) const
687{
688 do
689 {
690 if ( !bSystemWindow && pWindow->ImplIsOverlapWindow() )
691 break;
692
693 pWindow = pWindow->ImplGetParent();
694
695 if ( pWindow == this )
696 return true;
697 }
698 while ( pWindow );
699
700 return false;
701}
702
703bool Window::ImplIsWindowOrChild( const vcl::Window* pWindow, bool bSystemWindow ) const
704{
705 if ( this == pWindow )
706 return true;
707 return ImplIsChild( pWindow, bSystemWindow );
708}
709
710void Window::ImplResetReallyVisible()
711{
712 bool bBecameReallyInvisible = mpWindowImpl->mbReallyVisible;
713
714 mbDevOutput = false;
715 mpWindowImpl->mbReallyVisible = false;
716 mpWindowImpl->mbReallyShown = false;
717
718 // the SHOW/HIDE events serve as indicators to send child creation/destroy events to the access bridge.
719 // For this, the data member of the event must not be NULL.
720 // Previously, we did this in Window::Show, but there some events got lost in certain situations.
721 if( bBecameReallyInvisible && ImplIsAccessibleCandidate() )
722 CallEventListeners( VclEventId::WindowHide, this );
723 // TODO. It's kind of a hack that we're re-using the VclEventId::WindowHide. Normally, we should
724 // introduce another event which explicitly triggers the Accessibility implementations.
725
726 vcl::Window* pWindow = mpWindowImpl->mpFirstOverlap;
727 while ( pWindow )
728 {
729 if ( pWindow->mpWindowImpl->mbReallyVisible )
730 pWindow->ImplResetReallyVisible();
731 pWindow = pWindow->mpWindowImpl->mpNext;
732 }
733
734 pWindow = mpWindowImpl->mpFirstChild;
735 while ( pWindow )
736 {
737 if ( pWindow->mpWindowImpl->mbReallyVisible )
738 pWindow->ImplResetReallyVisible();
739 pWindow = pWindow->mpWindowImpl->mpNext;
740 }
741}
742
743void Window::ImplUpdateWindowPtr( vcl::Window* pWindow )
744{
745 if ( mpWindowImpl->mpFrameWindow != pWindow->mpWindowImpl->mpFrameWindow )
746 {
747 // release graphic
748 OutputDevice *pOutDev = GetOutDev();
749 pOutDev->ReleaseGraphics();
750 }
751
752 mpWindowImpl->mpFrameData = pWindow->mpWindowImpl->mpFrameData;
753 if (mpWindowImpl->mpFrame != pWindow->mpWindowImpl->mpFrame)
754 {
755 mpWindowImpl->mpFrame = pWindow->mpWindowImpl->mpFrame;
756 if (mpWindowImpl->mpSysObj)
757 mpWindowImpl->mpSysObj->Reparent(mpWindowImpl->mpFrame);
758 }
759 mpWindowImpl->mpFrameWindow = pWindow->mpWindowImpl->mpFrameWindow;
760 if ( pWindow->ImplIsOverlapWindow() )
761 mpWindowImpl->mpOverlapWindow = pWindow;
762 else
763 mpWindowImpl->mpOverlapWindow = pWindow->mpWindowImpl->mpOverlapWindow;
764
765 vcl::Window* pChild = mpWindowImpl->mpFirstChild;
766 while ( pChild )
767 {
768 pChild->ImplUpdateWindowPtr( pWindow );
769 pChild = pChild->mpWindowImpl->mpNext;
770 }
771}
772
773void Window::ImplUpdateWindowPtr()
774{
775 vcl::Window* pChild = mpWindowImpl->mpFirstChild;
776 while ( pChild )
777 {
778 pChild->ImplUpdateWindowPtr( this );
779 pChild = pChild->mpWindowImpl->mpNext;
780 }
781}
782
783void Window::ImplUpdateOverlapWindowPtr( bool bNewFrame )
784{
785 bool bVisible = IsVisible();
786 Show( false );
787 ImplRemoveWindow( bNewFrame );
788 vcl::Window* pRealParent = mpWindowImpl->mpRealParent;
789 ImplInsertWindow( ImplGetParent() );
790 mpWindowImpl->mpRealParent = pRealParent;
791 ImplUpdateWindowPtr();
792 if ( ImplUpdatePos() )
793 ImplUpdateSysObjPos();
794
795 if ( bNewFrame )
796 {
797 vcl::Window* pOverlapWindow = mpWindowImpl->mpFirstOverlap;
798 while ( pOverlapWindow )
799 {
800 vcl::Window* pNextOverlapWindow = pOverlapWindow->mpWindowImpl->mpNext;
801 pOverlapWindow->ImplUpdateOverlapWindowPtr( bNewFrame );
802 pOverlapWindow = pNextOverlapWindow;
803 }
804 }
805
806 if ( bVisible )
807 Show();
808}
809
810SystemWindow* Window::GetSystemWindow() const
811{
812
813 const vcl::Window* pWin = this;
814 while ( pWin && !pWin->IsSystemWindow() )
815 pWin = pWin->GetParent();
816 return static_cast<SystemWindow*>(const_cast<Window*>(pWin));
817}
818
819static SystemWindow *ImplGetLastSystemWindow( vcl::Window *pWin )
820{
821 // get the most top-level system window, the one that contains the taskpanelist
822 SystemWindow *pSysWin = nullptr;
823 if( !pWin )
824 return pSysWin;
825 vcl::Window *pMyParent = pWin;
826 while ( pMyParent )
827 {
828 if ( pMyParent->IsSystemWindow() )
829 pSysWin = static_cast<SystemWindow*>(pMyParent);
830 pMyParent = pMyParent->GetParent();
831 }
832 return pSysWin;
833}
834
835void Window::SetParent( vcl::Window* pNewParent )
836{
837 SAL_WARN_IF( !pNewParent, "vcl", "Window::SetParent(): pParent == NULL" )do { if (true && (!pNewParent)) { 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::SetParent(): pParent == NULL"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "837" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::SetParent(): pParent == NULL"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::SetParent(): pParent == NULL"; ::sal::detail
::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "837" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Window::SetParent(): pParent == NULL") == 1) { ::
sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "837" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Window::SetParent(): pParent == NULL"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Window::SetParent(): pParent == NULL"; ::sal::detail
::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "837" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
838 SAL_WARN_IF( pNewParent == this, "vcl", "someone tried to reparent a window to itself" )do { if (true && (pNewParent == 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() << "someone tried to reparent a window to itself"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "838" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "someone tried to reparent a window to itself"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "someone tried to reparent a window to itself"; ::sal
::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "838" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "someone tried to reparent a window to itself") ==
1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "838" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "someone tried to reparent a window to itself"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "someone tried to reparent a window to itself"; ::sal
::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "838" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
839
840 if( !pNewParent || pNewParent == this )
841 return;
842
843 // check if the taskpanelist would change and move the window pointer accordingly
844 SystemWindow *pSysWin = ImplGetLastSystemWindow(this);
845 SystemWindow *pNewSysWin = nullptr;
846 bool bChangeTaskPaneList = false;
847 if( pSysWin && pSysWin->ImplIsInTaskPaneList( this ) )
848 {
849 pNewSysWin = ImplGetLastSystemWindow( pNewParent );
850 if( pNewSysWin && pNewSysWin != pSysWin )
851 {
852 bChangeTaskPaneList = true;
853 pSysWin->GetTaskPaneList()->RemoveWindow( this );
854 }
855 }
856 // remove ownerdraw decorated windows from list in the top-most frame window
857 if( (GetStyle() & WB_OWNERDRAWDECORATION) && mpWindowImpl->mbFrame )
858 {
859 ::std::vector< VclPtr<vcl::Window> >& rList = ImplGetOwnerDrawList();
860 auto p = ::std::find( rList.begin(), rList.end(), VclPtr<vcl::Window>(this) );
861 if( p != rList.end() )
862 rList.erase( p );
863 }
864
865 ImplSetFrameParent( pNewParent );
866
867 if ( mpWindowImpl->mpBorderWindow )
868 {
869 mpWindowImpl->mpRealParent = pNewParent;
870 mpWindowImpl->mpBorderWindow->SetParent( pNewParent );
871 return;
872 }
873
874 if ( mpWindowImpl->mpParent.get() == pNewParent )
875 return;
876
877 if ( mpWindowImpl->mbFrame )
878 mpWindowImpl->mpFrame->SetParent( pNewParent->mpWindowImpl->mpFrame );
879
880 bool bVisible = IsVisible();
881 Show( false, ShowFlags::NoFocusChange );
882
883 // check if the overlap window changes
884 vcl::Window* pOldOverlapWindow;
885 vcl::Window* pNewOverlapWindow = nullptr;
886 if ( ImplIsOverlapWindow() )
887 pOldOverlapWindow = nullptr;
888 else
889 {
890 pNewOverlapWindow = pNewParent->ImplGetFirstOverlapWindow();
891 if ( mpWindowImpl->mpOverlapWindow.get() != pNewOverlapWindow )
892 pOldOverlapWindow = mpWindowImpl->mpOverlapWindow;
893 else
894 pOldOverlapWindow = nullptr;
895 }
896
897 // convert windows in the hierarchy
898 bool bFocusOverlapWin = HasChildPathFocus( true );
899 bool bFocusWin = HasChildPathFocus();
900 bool bNewFrame = pNewParent->mpWindowImpl->mpFrameWindow != mpWindowImpl->mpFrameWindow;
901 if ( bNewFrame )
902 {
903 if ( mpWindowImpl->mpFrameData->mpFocusWin )
904 {
905 if ( IsWindowOrChild( mpWindowImpl->mpFrameData->mpFocusWin ) )
906 mpWindowImpl->mpFrameData->mpFocusWin = nullptr;
907 }
908 if ( mpWindowImpl->mpFrameData->mpMouseMoveWin )
909 {
910 if ( IsWindowOrChild( mpWindowImpl->mpFrameData->mpMouseMoveWin ) )
911 mpWindowImpl->mpFrameData->mpMouseMoveWin = nullptr;
912 }
913 if ( mpWindowImpl->mpFrameData->mpMouseDownWin )
914 {
915 if ( IsWindowOrChild( mpWindowImpl->mpFrameData->mpMouseDownWin ) )
916 mpWindowImpl->mpFrameData->mpMouseDownWin = nullptr;
917 }
918 }
919 ImplRemoveWindow( bNewFrame );
920 ImplInsertWindow( pNewParent );
921 if ( mpWindowImpl->mnParentClipMode & ParentClipMode::Clip )
922 pNewParent->mpWindowImpl->mbClipChildren = true;
923 ImplUpdateWindowPtr();
924 if ( ImplUpdatePos() )
925 ImplUpdateSysObjPos();
926
927 // If the Overlap-Window has changed, we need to test whether
928 // OverlapWindows that had the Child window as their parent
929 // need to be put into the window hierarchy.
930 if ( ImplIsOverlapWindow() )
931 {
932 if ( bNewFrame )
933 {
934 vcl::Window* pOverlapWindow = mpWindowImpl->mpFirstOverlap;
935 while ( pOverlapWindow )
936 {
937 vcl::Window* pNextOverlapWindow = pOverlapWindow->mpWindowImpl->mpNext;
938 pOverlapWindow->ImplUpdateOverlapWindowPtr( bNewFrame );
939 pOverlapWindow = pNextOverlapWindow;
940 }
941 }
942 }
943 else if ( pOldOverlapWindow )
944 {
945 // reset Focus-Save
946 if ( bFocusWin ||
947 (pOldOverlapWindow->mpWindowImpl->mpLastFocusWindow &&
948 IsWindowOrChild( pOldOverlapWindow->mpWindowImpl->mpLastFocusWindow )) )
949 pOldOverlapWindow->mpWindowImpl->mpLastFocusWindow = nullptr;
950
951 vcl::Window* pOverlapWindow = pOldOverlapWindow->mpWindowImpl->mpFirstOverlap;
952 while ( pOverlapWindow )
953 {
954 vcl::Window* pNextOverlapWindow = pOverlapWindow->mpWindowImpl->mpNext;
955 if ( ImplIsRealParentPath( pOverlapWindow->ImplGetWindow() ) )
956 pOverlapWindow->ImplUpdateOverlapWindowPtr( bNewFrame );
957 pOverlapWindow = pNextOverlapWindow;
958 }
959
960 // update activate-status at next overlap window
961 if ( HasChildPathFocus( true ) )
962 ImplCallFocusChangeActivate( pNewOverlapWindow, pOldOverlapWindow );
963 }
964
965 // also convert Activate-Status
966 if ( bNewFrame )
967 {
968 if ( (GetType() == WindowType::BORDERWINDOW) &&
969 (ImplGetWindow()->GetType() == WindowType::FLOATINGWINDOW) )
970 static_cast<ImplBorderWindow*>(this)->SetDisplayActive( mpWindowImpl->mpFrameData->mbHasFocus );
971 }
972
973 // when required give focus to new frame if
974 // FocusWindow is changed with SetParent()
975 if ( bFocusOverlapWin )
976 {
977 mpWindowImpl->mpFrameData->mpFocusWin = Application::GetFocusWindow();
978 if ( !mpWindowImpl->mpFrameData->mbHasFocus )
979 {
980 mpWindowImpl->mpFrame->ToTop( SalFrameToTop::NONE );
981 }
982 }
983
984 // Assure DragSource and DropTarget members are created
985 if ( bNewFrame )
986 {
987 GetDropTarget();
988 }
989
990 if( bChangeTaskPaneList )
991 pNewSysWin->GetTaskPaneList()->AddWindow( this );
992
993 if( (GetStyle() & WB_OWNERDRAWDECORATION) && mpWindowImpl->mbFrame )
994 ImplGetOwnerDrawList().emplace_back(this );
995
996 if ( bVisible )
997 Show( true, ShowFlags::NoFocusChange | ShowFlags::NoActivate );
998}
999
1000bool Window::IsAncestorOf( const vcl::Window& rWindow ) const
1001{
1002 return ImplIsRealParentPath(&rWindow);
1003}
1004
1005sal_uInt16 Window::GetChildCount() const
1006{
1007 if (!mpWindowImpl)
1008 return 0;
1009
1010 sal_uInt16 nChildCount = 0;
1011 vcl::Window* pChild = mpWindowImpl->mpFirstChild;
1012 while ( pChild )
1013 {
1014 nChildCount++;
1015 pChild = pChild->mpWindowImpl->mpNext;
1016 }
1017
1018 return nChildCount;
1019}
1020
1021vcl::Window* Window::GetChild( sal_uInt16 nChild ) const
1022{
1023 if (!mpWindowImpl)
1024 return nullptr;
1025
1026 sal_uInt16 nChildCount = 0;
1027 vcl::Window* pChild = mpWindowImpl->mpFirstChild;
1028 while ( pChild )
1029 {
1030 if ( nChild == nChildCount )
1031 return pChild;
1032 pChild = pChild->mpWindowImpl->mpNext;
1033 nChildCount++;
1034 }
1035
1036 return nullptr;
1037}
1038
1039vcl::Window* Window::GetWindow( GetWindowType nType ) const
1040{
1041 if (!mpWindowImpl)
1042 return nullptr;
1043
1044 switch ( nType )
1045 {
1046 case GetWindowType::Parent:
1047 return mpWindowImpl->mpRealParent;
1048
1049 case GetWindowType::FirstChild:
1050 return mpWindowImpl->mpFirstChild;
1051
1052 case GetWindowType::LastChild:
1053 return mpWindowImpl->mpLastChild;
1054
1055 case GetWindowType::Prev:
1056 return mpWindowImpl->mpPrev;
1057
1058 case GetWindowType::Next:
1059 return mpWindowImpl->mpNext;
1060
1061 case GetWindowType::FirstOverlap:
1062 return mpWindowImpl->mpFirstOverlap;
1063
1064 case GetWindowType::Overlap:
1065 if ( ImplIsOverlapWindow() )
1066 return const_cast<vcl::Window*>(this);
1067 else
1068 return mpWindowImpl->mpOverlapWindow;
1069
1070 case GetWindowType::ParentOverlap:
1071 if ( ImplIsOverlapWindow() )
1072 return mpWindowImpl->mpOverlapWindow;
1073 else
1074 return mpWindowImpl->mpOverlapWindow->mpWindowImpl->mpOverlapWindow;
1075
1076 case GetWindowType::Client:
1077 return this->ImplGetWindow();
1078
1079 case GetWindowType::RealParent:
1080 return ImplGetParent();
1081
1082 case GetWindowType::Frame:
1083 return mpWindowImpl->mpFrameWindow;
1084
1085 case GetWindowType::Border:
1086 if ( mpWindowImpl->mpBorderWindow )
1087 return mpWindowImpl->mpBorderWindow->GetWindow( GetWindowType::Border );
1088 return const_cast<vcl::Window*>(this);
1089
1090 case GetWindowType::FirstTopWindowChild:
1091 return ImplGetWinData()->maTopWindowChildren.empty() ? nullptr : (*ImplGetWinData()->maTopWindowChildren.begin()).get();
1092
1093 case GetWindowType::NextTopWindowSibling:
1094 {
1095 if ( !mpWindowImpl->mpRealParent )
1096 return nullptr;
1097 const ::std::list< VclPtr<vcl::Window> >& rTopWindows( mpWindowImpl->mpRealParent->ImplGetWinData()->maTopWindowChildren );
1098 ::std::list< VclPtr<vcl::Window> >::const_iterator myPos =
1099 ::std::find( rTopWindows.begin(), rTopWindows.end(), this );
1100 if ( ( myPos == rTopWindows.end() ) || ( ++myPos == rTopWindows.end() ) )
1101 return nullptr;
1102 return *myPos;
1103 }
1104
1105 }
1106
1107 return nullptr;
1108}
1109
1110bool Window::IsChild( const vcl::Window* pWindow ) const
1111{
1112 do
1113 {
1114 if ( pWindow->ImplIsOverlapWindow() )
1115 break;
1116
1117 pWindow = pWindow->ImplGetParent();
1118
1119 if ( pWindow == this )
1120 return true;
1121 }
1122 while ( pWindow );
1123
1124 return false;
1125}
1126
1127bool Window::IsWindowOrChild( const vcl::Window* pWindow, bool bSystemWindow ) const
1128{
1129
1130 if ( this == pWindow )
1131 return true;
1132 return ImplIsChild( pWindow, bSystemWindow );
1133}
1134
1135void Window::ImplSetFrameParent( const vcl::Window* pParent )
1136{
1137 vcl::Window* pFrameWindow = ImplGetSVData()->maFrameData.mpFirstFrame;
1138 while( pFrameWindow )
1139 {
1140 // search all frames that are children of this window
1141 // and reparent them
1142 if( ImplIsRealParentPath( pFrameWindow ) )
1143 {
1144 SAL_WARN_IF( mpWindowImpl->mpFrame == pFrameWindow->mpWindowImpl->mpFrame, "vcl", "SetFrameParent to own" )do { if (true && (mpWindowImpl->mpFrame == pFrameWindow
->mpWindowImpl->mpFrame)) { 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() << "SetFrameParent to own"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"
), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "1144" ": "), ::sal::detail::unwrapStream( ::sal::detail
::StreamStart() << "SetFrameParent to own"), 0); } else
{ ::std::ostringstream sal_detail_stream; sal_detail_stream <<
"SetFrameParent to own"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN
), ("vcl"), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "1144" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "SetFrameParent to own") == 1) { ::sal_detail_log
( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "1144" ": "), ::sal::detail::unwrapStream( ::sal::detail
::StreamStart() << "SetFrameParent to own"), 0); } else
{ ::std::ostringstream sal_detail_stream; sal_detail_stream <<
"SetFrameParent to own"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN
), ("vcl"), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "1144" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
1145 SAL_WARN_IF( !mpWindowImpl->mpFrame, "vcl", "no frame" )do { if (true && (!mpWindowImpl->mpFrame)) { 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
() << "no frame") == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN
), ("vcl"), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "1145" ": "), ::sal::detail::unwrapStream( ::sal::detail
::StreamStart() << "no frame"), 0); } else { ::std::ostringstream
sal_detail_stream; sal_detail_stream << "no frame"; ::
sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "1145" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "no frame") == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN
), ("vcl"), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "1145" ": "), ::sal::detail::unwrapStream( ::sal::detail
::StreamStart() << "no frame"), 0); } else { ::std::ostringstream
sal_detail_stream; sal_detail_stream << "no frame"; ::
sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl"), ("/home/maarten/src/libreoffice/core/vcl/source/window/stacking.cxx"
":" "1145" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
1146 SalFrame* pParentFrame = pParent ? pParent->mpWindowImpl->mpFrame : nullptr;
1147 pFrameWindow->mpWindowImpl->mpFrame->SetParent( pParentFrame );
1148 }
1149 pFrameWindow = pFrameWindow->mpWindowImpl->mpFrameData->mpNextFrame;
1150 }
1151}
1152
1153} /* namespace vcl */
1154
1155/* 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);
12
←
Calling 'Reference::set'
→
20
←
Returning; memory was released
→
26
←
Calling 'Reference::set'
→
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)
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
12.1
'pBody' is null
26.1
'pBody' is non-null
12.1
'pBody' is null
26.1
'pBody' is non-null
12.1
'pBody' is null
26.1
'pBody' is non-null
12.1
'pBody' is null
26.1
'pBody' is non-null
)
13
←
Taking false branch
→
27
←
Taking true branch
→
123 pBody->acquire();
124 reference_type * const pOld = m_pBody;
125 m_pBody = pBody;
126 if (pOld
13.1
'pOld' is non-null
27.1
'pOld' is non-null
13.1
'pOld' is non-null
27.1
'pOld' is non-null
13.1
'pOld' is non-null
27.1
'pOld' is non-null
13.1
'pOld' is non-null
27.1
'pOld' is non-null
)
14
←
Taking true branch
→
28
←
Taking true branch
→
127 pOld->release();
15
←
Calling 'VclReferenceBase::release'
→
19
←
Returning; memory was released
→
29
←
Use of memory after it is freed
128 return *this;
129 }
130
131 /** Assignment.
132 Unbinds this instance from its body (if bound) and
133 bind it to the body represented by the handle.
134 */
135 Reference<reference_type> &
136 SAL_CALL operator= (const Reference<reference_type> & handle)
137 {
138 return set( handle.m_pBody );
139 }
140
141#ifdef LIBO_INTERNAL_ONLY1
142 /** Assignment.
143 * Unbinds this instance from its body (if bound),
144 * bind it to the body represented by the handle, and
145 * set the body represented by the handle to nullptr.
146 */
147 Reference<reference_type> &
148 operator= (Reference<reference_type> && handle)
149 {
150 // self-movement guts ourself
151 if (m_pBody)
152 m_pBody->release();
153 m_pBody = handle.m_pBody;
154 handle.m_pBody = nullptr;
155 return *this;
156 }
157#endif
158
159 /** Assignment...
160 */
161 Reference<reference_type> &
162 SAL_CALL operator= (reference_type * pBody)
163 {
164 return set( pBody );
165 }
166
167 /** Unbind the body from this handle.
168 Note that for a handle representing a large body,
169 "handle.clear().set(new body());" _might_
170 perform a little bit better than "handle.set(new body());",
171 since in the second case two large objects exist in memory
172 (the old body and the new body).
173 */
174 Reference<reference_type> & SAL_CALL clear()
175 {
176 if (m_pBody)
177 {
178 reference_type * const pOld = m_pBody;
179 m_pBody = NULL__null;
180 pOld->release();
181 }
182 return *this;
183 }
184
185
186 /** Get the body. Can be used instead of operator->().
187 I.e. handle->someBodyOp() and handle.get()->someBodyOp()
188 are the same.
189 */
190 reference_type * SAL_CALL get() const
191 {
192 return m_pBody;
193 }
194
195
196 /** Probably most common used: handle->someBodyOp().
197 */
198 reference_type * SAL_CALL operator->() const
199 {
200 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 200, __extension__ __PRETTY_FUNCTION__));
201 return m_pBody;
202 }
203
204
205 /** Allows (*handle).someBodyOp().
206 */
207 reference_type & SAL_CALL operator*() const
208 {
209 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 209, __extension__ __PRETTY_FUNCTION__));
210 return *m_pBody;
211 }
212
213
214 /** Returns True if the handle does point to a valid body.
215 */
216 bool SAL_CALL is() const
217 {
218 return (m_pBody != NULL__null);
219 }
220
221#if defined LIBO_INTERNAL_ONLY1
222 /** Returns True if the handle does point to a valid body.
223 */
224 explicit operator bool() const
225 {
226 return is();
227 }
228#endif
229
230 /** Returns True if this points to pBody.
231 */
232 bool SAL_CALL operator== (const reference_type * pBody) const
233 {
234 return (m_pBody == pBody);
235 }
236
237
238 /** Returns True if handle points to the same body.
239 */
240 bool
241 SAL_CALL operator== (const Reference<reference_type> & handle) const
242 {
243 return (m_pBody == handle.m_pBody);
244 }
245
246
247 /** Needed to place References into STL collection.
248 */
249 bool
250 SAL_CALL operator!= (const Reference<reference_type> & handle) const
251 {
252 return (m_pBody != handle.m_pBody);
253 }
254
255
256 /** Needed to place References into STL collection.
257 */
258 bool
259 SAL_CALL operator< (const Reference<reference_type> & handle) const
260 {
261 return (m_pBody < handle.m_pBody);
262 }
263
264
265 /** Needed to place References into STL collection.
266 */
267 bool
268 SAL_CALL operator> (const Reference<reference_type> & handle) const
269 {
270 return (m_pBody > handle.m_pBody);
271 }
272};
273
274} // namespace rtl
275
276#if defined LIBO_INTERNAL_ONLY1
277namespace std
278{
279
280/// @cond INTERNAL
281/**
282 Make rtl::Reference hashable by default for use in STL containers.
283
284 @since LibreOffice 6.3
285*/
286template<typename T>
287struct hash<::rtl::Reference<T>>
288{
289 std::size_t operator()(::rtl::Reference<T> const & s) const
290 { return std::size_t(s.get()); }
291};
292/// @endcond
293
294}
295
296#endif
297
298#endif /* ! INCLUDED_RTL_REF_HXX */
299
300/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
←

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

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