Bug Summary

File:home/maarten/src/libreoffice/core/include/rtl/ref.hxx
Warning:line 192, column 9
Use of memory after it is freed

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name virdev.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/gdi/virdev.cxx

/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.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 <salinst.hxx>
21#include <salgdi.hxx>
22#include <salvd.hxx>
23#include <outdev.h>
24#include <PhysicalFontCollection.hxx>
25#include <svdata.hxx>
26#include <vcl/virdev.hxx>
27#include <sal/log.hxx>
28#include <tools/debug.hxx>
29
30using namespace ::com::sun::star::uno;
31
32bool VirtualDevice::AcquireGraphics() const
33{
34 DBG_TESTSOLARMUTEX()do { DbgTestSolarMutex(); } while(false);
35
36 if ( mpGraphics )
37 return true;
38
39 mbInitLineColor = true;
40 mbInitFillColor = true;
41 mbInitFont = true;
42 mbInitTextColor = true;
43 mbInitClipRegion = true;
44
45 ImplSVData* pSVData = ImplGetSVData();
46
47 if ( mpVirDev )
48 {
49 mpGraphics = mpVirDev->AcquireGraphics();
50 // if needed retry after releasing least recently used virtual device graphics
51 while ( !mpGraphics )
52 {
53 if ( !pSVData->maGDIData.mpLastVirGraphics )
54 break;
55 pSVData->maGDIData.mpLastVirGraphics->ReleaseGraphics();
56 mpGraphics = mpVirDev->AcquireGraphics();
57 }
58 // update global LRU list of virtual device graphics
59 if ( mpGraphics )
60 {
61 mpNextGraphics = pSVData->maGDIData.mpFirstVirGraphics;
62 pSVData->maGDIData.mpFirstVirGraphics = const_cast<VirtualDevice*>(this);
63 if ( mpNextGraphics )
64 mpNextGraphics->mpPrevGraphics = const_cast<VirtualDevice*>(this);
65 if ( !pSVData->maGDIData.mpLastVirGraphics )
66 pSVData->maGDIData.mpLastVirGraphics = const_cast<VirtualDevice*>(this);
67 }
68 }
69
70 if ( mpGraphics )
71 {
72 mpGraphics->SetXORMode( (RasterOp::Invert == meRasterOp) || (RasterOp::Xor == meRasterOp), RasterOp::Invert == meRasterOp );
73 mpGraphics->setAntiAlias(bool(mnAntialiasing & AntialiasingFlags::Enable));
74 }
75
76 return mpGraphics != nullptr;
77}
78
79void VirtualDevice::ReleaseGraphics( bool bRelease )
80{
81 DBG_TESTSOLARMUTEX()do { DbgTestSolarMutex(); } while(false);
82
83 if ( !mpGraphics )
84 return;
85
86 // release the fonts of the physically released graphics device
87 if ( bRelease )
88 ImplReleaseFonts();
89
90 ImplSVData* pSVData = ImplGetSVData();
91
92 VirtualDevice* pVirDev = this;
93
94 if ( bRelease )
95 pVirDev->mpVirDev->ReleaseGraphics( mpGraphics );
96 // remove from global LRU list of virtual device graphics
97 if ( mpPrevGraphics )
98 mpPrevGraphics->mpNextGraphics = mpNextGraphics;
99 else
100 pSVData->maGDIData.mpFirstVirGraphics = mpNextGraphics;
101 if ( mpNextGraphics )
102 mpNextGraphics->mpPrevGraphics = mpPrevGraphics;
103 else
104 pSVData->maGDIData.mpLastVirGraphics = mpPrevGraphics;
105
106 mpGraphics = nullptr;
107 mpPrevGraphics = nullptr;
108 mpNextGraphics = nullptr;
109}
110
111void VirtualDevice::ImplInitVirDev( const OutputDevice* pOutDev,
112 long nDX, long nDY, const SystemGraphicsData *pData )
113{
114 SAL_INFO( "vcl.virdev", "ImplInitVirDev(" << nDX << "," << nDY << ")" )do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_INFO
, "vcl.virdev")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case
SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult
( ::sal::detail::StreamStart() << "ImplInitVirDev(" <<
nDX << "," << nDY << ")") == 1) { ::sal_detail_log
( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "114" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "ImplInitVirDev(" << nDX <<
"," << nDY << ")"), 0); } else { ::std::ostringstream
sal_detail_stream; sal_detail_stream << "ImplInitVirDev("
<< nDX << "," << nDY << ")"; ::sal::
detail::log( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), (
"/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "114" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "ImplInitVirDev(" << nDX << "," <<
nDY << ")") == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_INFO
), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "114" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "ImplInitVirDev(" << nDX <<
"," << nDY << ")"), 0); } else { ::std::ostringstream
sal_detail_stream; sal_detail_stream << "ImplInitVirDev("
<< nDX << "," << nDY << ")"; ::sal::
detail::log( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), (
"/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "114" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
115
116 meRefDevMode = RefDevMode::NONE;
117 mbForceZeroExtleadBug = false;
118
119 bool bErase = nDX > 0 && nDY > 0;
120
121 if ( nDX < 1 )
122 nDX = 1;
123
124 if ( nDY < 1 )
125 nDY = 1;
126
127 ImplSVData* pSVData = ImplGetSVData();
128
129 if ( !pOutDev )
130 pOutDev = ImplGetDefaultWindow();
131 if( !pOutDev )
132 return;
133
134 SalGraphics* pGraphics;
135 if ( !pOutDev->mpGraphics )
136 (void)pOutDev->AcquireGraphics();
137 pGraphics = pOutDev->mpGraphics;
138 if ( pGraphics )
139 mpVirDev = pSVData->mpDefInst->CreateVirtualDevice(pGraphics, nDX, nDY, meFormat, pData);
140 else
141 mpVirDev = nullptr;
142 if ( !mpVirDev )
143 {
144 // do not abort but throw an exception, may be the current thread terminates anyway (plugin-scenario)
145 throw css::uno::RuntimeException(
146 "Could not create system bitmap!",
147 css::uno::Reference< css::uno::XInterface >() );
148 }
149
150 switch (meFormat)
151 {
152 case DeviceFormat::BITMASK:
153 mnBitCount = 1;
154 break;
155 default:
156 mnBitCount = pOutDev->GetBitCount();
157 break;
158 }
159 mnOutWidth = nDX;
160 mnOutHeight = nDY;
161
162 if (meFormat == DeviceFormat::BITMASK)
163 SetAntialiasing( AntialiasingFlags::DisableText );
164
165 mbScreenComp = pOutDev->IsScreenComp();
166
167 mbDevOutput = true;
168 mxFontCollection = pSVData->maGDIData.mxScreenFontList;
169 mxFontCache = pSVData->maGDIData.mxScreenFontCache;
170 mnDPIX = pOutDev->mnDPIX;
171 mnDPIY = pOutDev->mnDPIY;
172 mnDPIScalePercentage = pOutDev->mnDPIScalePercentage;
173 maFont = pOutDev->maFont;
174
175 if( maTextColor != pOutDev->maTextColor )
176 {
177 maTextColor = pOutDev->maTextColor;
178 mbInitTextColor = true;
179 }
180
181 // virtual devices have white background by default
182 SetBackground( Wallpaper( COL_WHITE ) );
183
184 // #i59283# don't erase user-provided surface
185 if( !pData && bErase)
186 Erase();
187
188 // register VirDev in the list
189 mpNext = pSVData->maGDIData.mpFirstVirDev;
190 mpPrev = nullptr;
191 if ( mpNext )
192 mpNext->mpPrev = this;
193 pSVData->maGDIData.mpFirstVirDev = this;
194}
195
196VirtualDevice::VirtualDevice(const OutputDevice* pCompDev, DeviceFormat eFormat,
197 DeviceFormat eAlphaFormat, OutDevType eOutDevType)
198 : OutputDevice(eOutDevType)
199 , meFormat(eFormat)
200 , meAlphaFormat(eAlphaFormat)
201{
202 SAL_INFO( "vcl.virdev", "VirtualDevice::VirtualDevice( " << static_cast<int>(eFormat)do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_INFO
, "vcl.virdev")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case
SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult
( ::sal::detail::StreamStart() << "VirtualDevice::VirtualDevice( "
<< static_cast<int>(eFormat) << ", " <<
static_cast<int>(eAlphaFormat) << ", " << static_cast
<int>(eOutDevType) << " )") == 1) { ::sal_detail_log
( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "204" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::VirtualDevice( " <<
static_cast<int>(eFormat) << ", " << static_cast
<int>(eAlphaFormat) << ", " << static_cast<
int>(eOutDevType) << " )"), 0); } else { ::std::ostringstream
sal_detail_stream; sal_detail_stream << "VirtualDevice::VirtualDevice( "
<< static_cast<int>(eFormat) << ", " <<
static_cast<int>(eAlphaFormat) << ", " << static_cast
<int>(eOutDevType) << " )"; ::sal::detail::log( (
::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "204" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "VirtualDevice::VirtualDevice( " << static_cast
<int>(eFormat) << ", " << static_cast<int
>(eAlphaFormat) << ", " << static_cast<int>
(eOutDevType) << " )") == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_INFO
), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "204" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::VirtualDevice( " <<
static_cast<int>(eFormat) << ", " << static_cast
<int>(eAlphaFormat) << ", " << static_cast<
int>(eOutDevType) << " )"), 0); } else { ::std::ostringstream
sal_detail_stream; sal_detail_stream << "VirtualDevice::VirtualDevice( "
<< static_cast<int>(eFormat) << ", " <<
static_cast<int>(eAlphaFormat) << ", " << static_cast
<int>(eOutDevType) << " )"; ::sal::detail::log( (
::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "204" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false)
203 << ", " << static_cast<int>(eAlphaFormat)do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_INFO
, "vcl.virdev")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case
SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult
( ::sal::detail::StreamStart() << "VirtualDevice::VirtualDevice( "
<< static_cast<int>(eFormat) << ", " <<
static_cast<int>(eAlphaFormat) << ", " << static_cast
<int>(eOutDevType) << " )") == 1) { ::sal_detail_log
( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "204" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::VirtualDevice( " <<
static_cast<int>(eFormat) << ", " << static_cast
<int>(eAlphaFormat) << ", " << static_cast<
int>(eOutDevType) << " )"), 0); } else { ::std::ostringstream
sal_detail_stream; sal_detail_stream << "VirtualDevice::VirtualDevice( "
<< static_cast<int>(eFormat) << ", " <<
static_cast<int>(eAlphaFormat) << ", " << static_cast
<int>(eOutDevType) << " )"; ::sal::detail::log( (
::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "204" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "VirtualDevice::VirtualDevice( " << static_cast
<int>(eFormat) << ", " << static_cast<int
>(eAlphaFormat) << ", " << static_cast<int>
(eOutDevType) << " )") == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_INFO
), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "204" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::VirtualDevice( " <<
static_cast<int>(eFormat) << ", " << static_cast
<int>(eAlphaFormat) << ", " << static_cast<
int>(eOutDevType) << " )"), 0); } else { ::std::ostringstream
sal_detail_stream; sal_detail_stream << "VirtualDevice::VirtualDevice( "
<< static_cast<int>(eFormat) << ", " <<
static_cast<int>(eAlphaFormat) << ", " << static_cast
<int>(eOutDevType) << " )"; ::sal::detail::log( (
::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "204" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false)
204 << ", " << static_cast<int>(eOutDevType) << " )" )do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_INFO
, "vcl.virdev")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case
SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult
( ::sal::detail::StreamStart() << "VirtualDevice::VirtualDevice( "
<< static_cast<int>(eFormat) << ", " <<
static_cast<int>(eAlphaFormat) << ", " << static_cast
<int>(eOutDevType) << " )") == 1) { ::sal_detail_log
( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "204" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::VirtualDevice( " <<
static_cast<int>(eFormat) << ", " << static_cast
<int>(eAlphaFormat) << ", " << static_cast<
int>(eOutDevType) << " )"), 0); } else { ::std::ostringstream
sal_detail_stream; sal_detail_stream << "VirtualDevice::VirtualDevice( "
<< static_cast<int>(eFormat) << ", " <<
static_cast<int>(eAlphaFormat) << ", " << static_cast
<int>(eOutDevType) << " )"; ::sal::detail::log( (
::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "204" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "VirtualDevice::VirtualDevice( " << static_cast
<int>(eFormat) << ", " << static_cast<int
>(eAlphaFormat) << ", " << static_cast<int>
(eOutDevType) << " )") == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_INFO
), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "204" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::VirtualDevice( " <<
static_cast<int>(eFormat) << ", " << static_cast
<int>(eAlphaFormat) << ", " << static_cast<
int>(eOutDevType) << " )"), 0); } else { ::std::ostringstream
sal_detail_stream; sal_detail_stream << "VirtualDevice::VirtualDevice( "
<< static_cast<int>(eFormat) << ", " <<
static_cast<int>(eAlphaFormat) << ", " << static_cast
<int>(eOutDevType) << " )"; ::sal::detail::log( (
::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "204" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
205
206 ImplInitVirDev(pCompDev ? pCompDev : Application::GetDefaultDevice(), 0, 0);
207}
208
209VirtualDevice::VirtualDevice(const SystemGraphicsData& rData, const Size &rSize,
210 DeviceFormat eFormat)
211 : OutputDevice(OUTDEV_VIRDEV)
212 , meFormat(eFormat)
213 , meAlphaFormat(DeviceFormat::NONE)
214{
215 SAL_INFO( "vcl.virdev", "VirtualDevice::VirtualDevice( " << static_cast<int>(eFormat) << " )" )do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_INFO
, "vcl.virdev")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case
SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult
( ::sal::detail::StreamStart() << "VirtualDevice::VirtualDevice( "
<< static_cast<int>(eFormat) << " )") == 1
) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"
), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "215" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::VirtualDevice( " <<
static_cast<int>(eFormat) << " )"), 0); } else {
::std::ostringstream sal_detail_stream; sal_detail_stream <<
"VirtualDevice::VirtualDevice( " << static_cast<int
>(eFormat) << " )"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_INFO
), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "215" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "VirtualDevice::VirtualDevice( " << static_cast
<int>(eFormat) << " )") == 1) { ::sal_detail_log(
(::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "215" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::VirtualDevice( " <<
static_cast<int>(eFormat) << " )"), 0); } else {
::std::ostringstream sal_detail_stream; sal_detail_stream <<
"VirtualDevice::VirtualDevice( " << static_cast<int
>(eFormat) << " )"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_INFO
), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "215" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
216
217 ImplInitVirDev(Application::GetDefaultDevice(), rSize.Width(), rSize.Height(), &rData);
218}
219
220VirtualDevice::~VirtualDevice()
221{
222 SAL_INFO( "vcl.virdev", "VirtualDevice::~VirtualDevice()" )do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_INFO
, "vcl.virdev")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case
SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult
( ::sal::detail::StreamStart() << "VirtualDevice::~VirtualDevice()"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"
), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "222" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::~VirtualDevice()"), 0)
; } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "VirtualDevice::~VirtualDevice()"; ::sal::detail::log
( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "222" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "VirtualDevice::~VirtualDevice()") == 1) { ::sal_detail_log
( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "222" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::~VirtualDevice()"), 0)
; } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "VirtualDevice::~VirtualDevice()"; ::sal::detail::log
( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "222" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
223 disposeOnce();
224}
225
226void VirtualDevice::dispose()
227{
228 SAL_INFO( "vcl.virdev", "VirtualDevice::dispose()" )do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_INFO
, "vcl.virdev")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case
SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult
( ::sal::detail::StreamStart() << "VirtualDevice::dispose()"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"
), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "228" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::dispose()"), 0); } else
{ ::std::ostringstream sal_detail_stream; sal_detail_stream <<
"VirtualDevice::dispose()"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_INFO
), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "228" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "VirtualDevice::dispose()") == 1) { ::sal_detail_log
( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "228" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::dispose()"), 0); } else
{ ::std::ostringstream sal_detail_stream; sal_detail_stream <<
"VirtualDevice::dispose()"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_INFO
), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "228" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
229
230 ImplSVData* pSVData = ImplGetSVData();
231
232 ReleaseGraphics();
233
234 mpVirDev.reset();
235
236 // remove this VirtualDevice from the double-linked global list
237 if( mpPrev )
238 mpPrev->mpNext = mpNext;
239 else
240 pSVData->maGDIData.mpFirstVirDev = mpNext;
241
242 if( mpNext )
243 mpNext->mpPrev = mpPrev;
244
245 OutputDevice::dispose();
246}
247
248bool VirtualDevice::InnerImplSetOutputSizePixel( const Size& rNewSize, bool bErase,
249 sal_uInt8 *const pBuffer)
250{
251 SAL_INFO( "vcl.virdev",do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_INFO
, "vcl.virdev")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case
SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult
( ::sal::detail::StreamStart() << "VirtualDevice::InnerImplSetOutputSizePixel( "
<< rNewSize.Width() << ", " << rNewSize.Height
() << ", " << int(bErase) << " )") == 1) { ::
sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev")
, ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "253" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::InnerImplSetOutputSizePixel( "
<< rNewSize.Width() << ", " << rNewSize.Height
() << ", " << int(bErase) << " )"), 0); } else
{ ::std::ostringstream sal_detail_stream; sal_detail_stream <<
"VirtualDevice::InnerImplSetOutputSizePixel( " << rNewSize
.Width() << ", " << rNewSize.Height() << ", "
<< int(bErase) << " )"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_INFO
), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "253" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "VirtualDevice::InnerImplSetOutputSizePixel( " <<
rNewSize.Width() << ", " << rNewSize.Height() <<
", " << int(bErase) << " )") == 1) { ::sal_detail_log
( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "253" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::InnerImplSetOutputSizePixel( "
<< rNewSize.Width() << ", " << rNewSize.Height
() << ", " << int(bErase) << " )"), 0); } else
{ ::std::ostringstream sal_detail_stream; sal_detail_stream <<
"VirtualDevice::InnerImplSetOutputSizePixel( " << rNewSize
.Width() << ", " << rNewSize.Height() << ", "
<< int(bErase) << " )"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_INFO
), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "253" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false)
252 "VirtualDevice::InnerImplSetOutputSizePixel( " << rNewSize.Width() << ", "do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_INFO
, "vcl.virdev")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case
SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult
( ::sal::detail::StreamStart() << "VirtualDevice::InnerImplSetOutputSizePixel( "
<< rNewSize.Width() << ", " << rNewSize.Height
() << ", " << int(bErase) << " )") == 1) { ::
sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev")
, ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "253" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::InnerImplSetOutputSizePixel( "
<< rNewSize.Width() << ", " << rNewSize.Height
() << ", " << int(bErase) << " )"), 0); } else
{ ::std::ostringstream sal_detail_stream; sal_detail_stream <<
"VirtualDevice::InnerImplSetOutputSizePixel( " << rNewSize
.Width() << ", " << rNewSize.Height() << ", "
<< int(bErase) << " )"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_INFO
), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "253" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "VirtualDevice::InnerImplSetOutputSizePixel( " <<
rNewSize.Width() << ", " << rNewSize.Height() <<
", " << int(bErase) << " )") == 1) { ::sal_detail_log
( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "253" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::InnerImplSetOutputSizePixel( "
<< rNewSize.Width() << ", " << rNewSize.Height
() << ", " << int(bErase) << " )"), 0); } else
{ ::std::ostringstream sal_detail_stream; sal_detail_stream <<
"VirtualDevice::InnerImplSetOutputSizePixel( " << rNewSize
.Width() << ", " << rNewSize.Height() << ", "
<< int(bErase) << " )"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_INFO
), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "253" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false)
253 << rNewSize.Height() << ", " << int(bErase) << " )" )do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_INFO
, "vcl.virdev")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case
SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult
( ::sal::detail::StreamStart() << "VirtualDevice::InnerImplSetOutputSizePixel( "
<< rNewSize.Width() << ", " << rNewSize.Height
() << ", " << int(bErase) << " )") == 1) { ::
sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev")
, ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "253" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::InnerImplSetOutputSizePixel( "
<< rNewSize.Width() << ", " << rNewSize.Height
() << ", " << int(bErase) << " )"), 0); } else
{ ::std::ostringstream sal_detail_stream; sal_detail_stream <<
"VirtualDevice::InnerImplSetOutputSizePixel( " << rNewSize
.Width() << ", " << rNewSize.Height() << ", "
<< int(bErase) << " )"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_INFO
), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "253" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "VirtualDevice::InnerImplSetOutputSizePixel( " <<
rNewSize.Width() << ", " << rNewSize.Height() <<
", " << int(bErase) << " )") == 1) { ::sal_detail_log
( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "253" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VirtualDevice::InnerImplSetOutputSizePixel( "
<< rNewSize.Width() << ", " << rNewSize.Height
() << ", " << int(bErase) << " )"), 0); } else
{ ::std::ostringstream sal_detail_stream; sal_detail_stream <<
"VirtualDevice::InnerImplSetOutputSizePixel( " << rNewSize
.Width() << ", " << rNewSize.Height() << ", "
<< int(bErase) << " )"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_INFO
), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "253" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
254
255 if ( !mpVirDev )
256 return false;
257 else if ( rNewSize == GetOutputSizePixel() )
258 {
259 if ( bErase )
260 Erase();
261 SAL_INFO( "vcl.virdev", "Trying to re-use a VirtualDevice but this time using a pre-allocated buffer")do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_INFO
, "vcl.virdev")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case
SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult
( ::sal::detail::StreamStart() << "Trying to re-use a VirtualDevice but this time using a pre-allocated buffer"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"
), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "261" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Trying to re-use a VirtualDevice but this time using a pre-allocated buffer"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Trying to re-use a VirtualDevice but this time using a pre-allocated buffer"
; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"
), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "261" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Trying to re-use a VirtualDevice but this time using a pre-allocated buffer"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"
), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "261" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Trying to re-use a VirtualDevice but this time using a pre-allocated buffer"
), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Trying to re-use a VirtualDevice but this time using a pre-allocated buffer"
; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_INFO), ("vcl.virdev"
), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "261" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
262 return true;
263 }
264
265 bool bRet;
266 long nNewWidth = rNewSize.Width(), nNewHeight = rNewSize.Height();
267
268 if ( nNewWidth < 1 )
269 nNewWidth = 1;
270
271 if ( nNewHeight < 1 )
272 nNewHeight = 1;
273
274 if ( bErase )
275 {
276 if ( pBuffer )
277 bRet = mpVirDev->SetSizeUsingBuffer( nNewWidth, nNewHeight, pBuffer );
278 else
279 bRet = mpVirDev->SetSize( nNewWidth, nNewHeight );
280
281 if ( bRet )
282 {
283 mnOutWidth = rNewSize.Width();
284 mnOutHeight = rNewSize.Height();
285 Erase();
286 }
287 }
288 else
289 {
290 std::unique_ptr<SalVirtualDevice> pNewVirDev;
291 ImplSVData* pSVData = ImplGetSVData();
292
293 // we need a graphics
294 if ( !mpGraphics && !AcquireGraphics() )
295 return false;
296
297 pNewVirDev = pSVData->mpDefInst->CreateVirtualDevice(mpGraphics, nNewWidth, nNewHeight, meFormat);
298 if ( pNewVirDev )
299 {
300 SalGraphics* pGraphics = pNewVirDev->AcquireGraphics();
301 if ( pGraphics )
302 {
303 long nWidth;
304 long nHeight;
305 if ( mnOutWidth < nNewWidth )
306 nWidth = mnOutWidth;
307 else
308 nWidth = nNewWidth;
309 if ( mnOutHeight < nNewHeight )
310 nHeight = mnOutHeight;
311 else
312 nHeight = nNewHeight;
313 SalTwoRect aPosAry(0, 0, nWidth, nHeight, 0, 0, nWidth, nHeight);
314 pGraphics->CopyBits( aPosAry, mpGraphics, this, this );
315 pNewVirDev->ReleaseGraphics( pGraphics );
316 ReleaseGraphics();
317 mpVirDev = std::move(pNewVirDev);
318 mnOutWidth = rNewSize.Width();
319 mnOutHeight = rNewSize.Height();
320 bRet = true;
321 }
322 else
323 {
324 bRet = false;
325 }
326 }
327 else
328 bRet = false;
329 }
330
331 return bRet;
332}
333
334// #i32109#: Fill opaque areas correctly (without relying on
335// fill/linecolor state)
336void VirtualDevice::ImplFillOpaqueRectangle( const tools::Rectangle& rRect )
337{
338 // Set line and fill color to black (->opaque),
339 // fill rect with that (linecolor, too, because of
340 // those pesky missing pixel problems)
341 Push( PushFlags::LINECOLOR | PushFlags::FILLCOLOR );
342 SetLineColor( COL_BLACK );
343 SetFillColor( COL_BLACK );
344 DrawRect( rRect );
345 Pop();
346}
347
348bool VirtualDevice::ImplSetOutputSizePixel( const Size& rNewSize, bool bErase,
349 sal_uInt8 *const pBuffer)
350{
351 if( InnerImplSetOutputSizePixel(rNewSize, bErase, pBuffer) )
2
←
Taking true branch
→
352 {
353 if (meAlphaFormat != DeviceFormat::NONE)
3
←
Assuming field 'meAlphaFormat' is not equal to NONE
→
4
←
Taking true branch
→
354 {
355 // #110958# Setup alpha bitmap
356 if(mpAlphaVDev && mpAlphaVDev->GetOutputSizePixel() != rNewSize)
5
←
Taking true branch
→
357 {
358 mpAlphaVDev.disposeAndClear();
6
←
Calling 'VclPtr::disposeAndClear'
→
359 }
360
361 if( !mpAlphaVDev )
362 {
363 mpAlphaVDev = VclPtr<VirtualDevice>::Create(*this, meAlphaFormat);
364 mpAlphaVDev->InnerImplSetOutputSizePixel(rNewSize, bErase, nullptr);
365 }
366
367 // TODO: copy full outdev state to new one, here. Also needed in outdev2.cxx:DrawOutDev
368 if( GetLineColor() != COL_TRANSPARENT )
369 mpAlphaVDev->SetLineColor( COL_BLACK );
370
371 if( GetFillColor() != COL_TRANSPARENT )
372 mpAlphaVDev->SetFillColor( COL_BLACK );
373
374 mpAlphaVDev->SetMapMode( GetMapMode() );
375 }
376
377 return true;
378 }
379
380 return false;
381}
382
383void VirtualDevice::EnableRTL( bool bEnable )
384{
385 // virdevs default to not mirroring, they will only be set to mirroring
386 // under rare circumstances in the UI, eg the valueset control
387 // because each virdev has its own SalGraphics we can safely switch the SalGraphics here
388 // ...hopefully
389 if( AcquireGraphics() )
390 mpGraphics->SetLayout( bEnable ? SalLayoutFlags::BiDiRtl : SalLayoutFlags::NONE );
391
392 OutputDevice::EnableRTL(bEnable);
393}
394
395bool VirtualDevice::SetOutputSizePixel( const Size& rNewSize, bool bErase )
396{
397 return ImplSetOutputSizePixel(rNewSize, bErase, nullptr);
1
Calling 'VirtualDevice::ImplSetOutputSizePixel'
→
398}
399
400bool VirtualDevice::SetOutputSizePixelScaleOffsetAndBuffer(
401 const Size& rNewSize, const Fraction& rScale, const Point& rNewOffset,
402 sal_uInt8 *const pBuffer)
403{
404 if (pBuffer) {
405 MapMode mm = GetMapMode();
406 mm.SetOrigin( rNewOffset );
407 mm.SetScaleX( rScale );
408 mm.SetScaleY( rScale );
409 SetMapMode( mm );
410 }
411 return ImplSetOutputSizePixel(rNewSize, true, pBuffer);
412}
413
414void VirtualDevice::SetReferenceDevice( RefDevMode i_eRefDevMode )
415{
416 sal_Int32 nDPIX = 600, nDPIY = 600;
417 switch( i_eRefDevMode )
418 {
419 case RefDevMode::NONE:
420 default:
421 SAL_WARN( "vcl.virdev", "VDev::SetRefDev illegal argument!" )do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_WARN
, "vcl.virdev")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case
SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult
( ::sal::detail::StreamStart() << "VDev::SetRefDev illegal argument!"
) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl.virdev"
), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "421" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VDev::SetRefDev illegal argument!"), 0
); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "VDev::SetRefDev illegal argument!"; ::sal::detail::
log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "421" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "VDev::SetRefDev illegal argument!") == 1) { ::sal_detail_log
( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "421" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "VDev::SetRefDev illegal argument!"), 0
); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "VDev::SetRefDev illegal argument!"; ::sal::detail::
log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl.virdev"), ("/home/maarten/src/libreoffice/core/vcl/source/gdi/virdev.cxx"
":" "421" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false);
422 break;
423 case RefDevMode::Dpi600:
424 nDPIX = nDPIY = 600;
425 break;
426 case RefDevMode::MSO1:
427 nDPIX = nDPIY = 6*1440;
428 break;
429 case RefDevMode::PDF1:
430 nDPIX = nDPIY = 720;
431 break;
432 }
433 ImplSetReferenceDevice( i_eRefDevMode, nDPIX, nDPIY );
434}
435
436void VirtualDevice::SetReferenceDevice( sal_Int32 i_nDPIX, sal_Int32 i_nDPIY )
437{
438 ImplSetReferenceDevice( RefDevMode::Custom, i_nDPIX, i_nDPIY );
439}
440
441bool VirtualDevice::IsVirtual() const
442{
443 return true;
444}
445
446void VirtualDevice::ImplSetReferenceDevice( RefDevMode i_eRefDevMode, sal_Int32 i_nDPIX, sal_Int32 i_nDPIY )
447{
448 mnDPIX = i_nDPIX;
449 mnDPIY = i_nDPIY;
450 mnDPIScalePercentage = 100;
451
452 EnableOutput( false ); // prevent output on reference device
453 mbScreenComp = false;
454
455 // invalidate currently selected fonts
456 mbInitFont = true;
457 mbNewFont = true;
458
459 // avoid adjusting font lists when already in refdev mode
460 RefDevMode nOldRefDevMode = meRefDevMode;
461 meRefDevMode = i_eRefDevMode;
462 if( nOldRefDevMode != RefDevMode::NONE )
463 return;
464
465 // the reference device should have only scalable fonts
466 // => clean up the original font lists before getting new ones
467 mpFontInstance.clear();
468 mpDeviceFontList.reset();
469 mpDeviceFontSizeList.reset();
470
471 // preserve global font lists
472 ImplSVData* pSVData = ImplGetSVData();
473 mxFontCollection.reset();
474 mxFontCache.reset();
475
476 // get font list with scalable fonts only
477 (void)AcquireGraphics();
478 mxFontCollection = pSVData->maGDIData.mxScreenFontList->Clone();
479
480 // prepare to use new font lists
481 mxFontCache = std::make_shared<ImplFontCache>();
482}
483
484sal_uInt16 VirtualDevice::GetBitCount() const
485{
486 return mnBitCount;
487}
488
489bool VirtualDevice::UsePolyPolygonForComplexGradient()
490{
491 return true;
492}
493
494void VirtualDevice::Compat_ZeroExtleadBug()
495{
496 mbForceZeroExtleadBug = true;
497}
498
499long VirtualDevice::GetFontExtLeading() const
500{
501#ifdef UNX1
502 // backwards compatible line metrics after fixing #i60945#
503 if ( mbForceZeroExtleadBug )
504 return 0;
505#endif
506
507 return mpFontInstance->mxFontMetric->GetExternalLeading();
508}
509
510/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
←

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

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

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

→
1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#ifndef INCLUDED_RTL_REF_HXX
21#define INCLUDED_RTL_REF_HXX
22
23#include "sal/config.h"
24
25#include <cassert>
26#include <cstddef>
27#include <functional>
28#ifdef LIBO_INTERNAL_ONLY1
29#include <type_traits>
30#endif
31
32#include "sal/types.h"
33
34namespace rtl
35{
36
37/** Template reference class for reference type.
38*/
39template <class reference_type>
40class Reference
41{
42 /** The <b>reference_type</b> body pointer.
43 */
44 reference_type * m_pBody;
45
46
47public:
48 /** Constructor...
49 */
50 Reference()
51 : m_pBody (NULL__null)
52 {}
53
54
55 /** Constructor...
56 */
57 Reference (reference_type * pBody, __sal_NoAcquire)
58 : m_pBody (pBody)
59 {
60 }
61
62 /** Constructor...
63 */
64 Reference (reference_type * pBody)
65 : m_pBody (pBody)
66 {
67 if (m_pBody)
68 m_pBody->acquire();
69 }
70
71 /** Copy constructor...
72 */
73 Reference (const Reference<reference_type> & handle)
74 : m_pBody (handle.m_pBody)
75 {
76 if (m_pBody)
77 m_pBody->acquire();
78 }
79
80#ifdef LIBO_INTERNAL_ONLY1
81 /** Move constructor...
82 */
83 Reference (Reference<reference_type> && handle) noexcept
84 : m_pBody (handle.m_pBody)
85 {
86 handle.m_pBody = nullptr;
87 }
88#endif
89
90#if defined LIBO_INTERNAL_ONLY1
91 /** Up-casting conversion constructor: Copies interface reference.
92
93 Does not work for up-casts to ambiguous bases.
94
95 @param rRef another reference
96 */
97 template< class derived_type >
98 inline Reference(
99 const Reference< derived_type > & rRef,
100 std::enable_if_t<std::is_base_of_v<reference_type, derived_type>, int> = 0 )
101 : m_pBody (rRef.get())
102 {
103 if (m_pBody)
104 m_pBody->acquire();
105 }
106#endif
107
108 /** Destructor...
109 */
110 ~Reference() COVERITY_NOEXCEPT_FALSE
111 {
112 if (m_pBody)
113 m_pBody->release();
114 }
115
116 /** Set...
117 Similar to assignment.
118 */
119 Reference<reference_type> &
120 SAL_CALL set (reference_type * pBody)
121 {
122 if (pBody)
123 pBody->acquire();
124 reference_type * const pOld = m_pBody;
125 m_pBody = pBody;
126 if (pOld)
127 pOld->release();
128 return *this;
129 }
130
131 /** Assignment.
132 Unbinds this instance from its body (if bound) and
133 bind it to the body represented by the handle.
134 */
135 Reference<reference_type> &
136 SAL_CALL operator= (const Reference<reference_type> & handle)
137 {
138 return set( handle.m_pBody );
139 }
140
141#ifdef LIBO_INTERNAL_ONLY1
142 /** Assignment.
143 * Unbinds this instance from its body (if bound),
144 * bind it to the body represented by the handle, and
145 * set the body represented by the handle to nullptr.
146 */
147 Reference<reference_type> &
148 operator= (Reference<reference_type> && handle)
149 {
150 // self-movement guts ourself
151 if (m_pBody)
152 m_pBody->release();
153 m_pBody = handle.m_pBody;
154 handle.m_pBody = nullptr;
155 return *this;
156 }
157#endif
158
159 /** Assignment...
160 */
161 Reference<reference_type> &
162 SAL_CALL operator= (reference_type * pBody)
163 {
164 return set( pBody );
165 }
166
167 /** Unbind the body from this handle.
168 Note that for a handle representing a large body,
169 "handle.clear().set(new body());" _might_
170 perform a little bit better than "handle.set(new body());",
171 since in the second case two large objects exist in memory
172 (the old body and the new body).
173 */
174 Reference<reference_type> & SAL_CALL clear()
175 {
176 if (m_pBody
7.1
Field 'm_pBody' is non-null
7.1
Field 'm_pBody' is non-null
7.1
Field 'm_pBody' is non-null
7.1
Field 'm_pBody' is non-null
)
8
←
Taking true branch
→
177 {
178 reference_type * const pOld = m_pBody;
179 m_pBody = NULL__null;
180 pOld->release();
9
←
Calling 'VclReferenceBase::release'
→
13
←
Returning; memory was released
→
181 }
182 return *this;
183 }
184
185
186 /** Get the body. Can be used instead of operator->().
187 I.e. handle->someBodyOp() and handle.get()->someBodyOp()
188 are the same.
189 */
190 reference_type * SAL_CALL get() const
191 {
192 return m_pBody;
16
←
Use of memory after it is freed
193 }
194
195
196 /** Probably most common used: handle->someBodyOp().
197 */
198 reference_type * SAL_CALL operator->() const
199 {
200 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 200, __extension__ __PRETTY_FUNCTION__));
201 return m_pBody;
202 }
203
204
205 /** Allows (*handle).someBodyOp().
206 */
207 reference_type & SAL_CALL operator*() const
208 {
209 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 209, __extension__ __PRETTY_FUNCTION__));
210 return *m_pBody;
211 }
212
213
214 /** Returns True if the handle does point to a valid body.
215 */
216 bool SAL_CALL is() const
217 {
218 return (m_pBody != NULL__null);
219 }
220
221#if defined LIBO_INTERNAL_ONLY1
222 /** Returns True if the handle does point to a valid body.
223 */
224 explicit operator bool() const
225 {
226 return is();
227 }
228#endif
229
230 /** Returns True if this points to pBody.
231 */
232 bool SAL_CALL operator== (const reference_type * pBody) const
233 {
234 return (m_pBody == pBody);
235 }
236
237
238 /** Returns True if handle points to the same body.
239 */
240 bool
241 SAL_CALL operator== (const Reference<reference_type> & handle) const
242 {
243 return (m_pBody == handle.m_pBody);
244 }
245
246
247 /** Needed to place References into STL collection.
248 */
249 bool
250 SAL_CALL operator!= (const Reference<reference_type> & handle) const
251 {
252 return (m_pBody != handle.m_pBody);
253 }
254
255
256 /** Needed to place References into STL collection.
257 */
258 bool
259 SAL_CALL operator< (const Reference<reference_type> & handle) const
260 {
261 return (m_pBody < handle.m_pBody);
262 }
263
264
265 /** Needed to place References into STL collection.
266 */
267 bool
268 SAL_CALL operator> (const Reference<reference_type> & handle) const
269 {
270 return (m_pBody > handle.m_pBody);
271 }
272};
273
274} // namespace rtl
275
276#if defined LIBO_INTERNAL_ONLY1
277namespace std
278{
279
280/// @cond INTERNAL
281/**
282 Make rtl::Reference hashable by default for use in STL containers.
283
284 @since LibreOffice 6.3
285*/
286template<typename T>
287struct hash<::rtl::Reference<T>>
288{
289 std::size_t operator()(::rtl::Reference<T> const & s) const
290 { return std::size_t(s.get()); }
291};
292/// @endcond
293
294}
295
296#endif
297
298#endif /* ! INCLUDED_RTL_REF_HXX */
299
300/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
←

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

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