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 PageBreakWin.cxx -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -mframe-pointer=all -fmath-errno -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/lib64/clang/11.0.0 -isystem /usr/include/libxml2 -D BOOST_ERROR_CODE_HEADER_ONLY -D BOOST_SYSTEM_NO_DEPRECATED -D CPPU_ENV=gcc3 -D LINUX -D OSL_DEBUG_LEVEL=1 -D SAL_LOG_INFO -D SAL_LOG_WARN -D UNIX -D UNX -D X86_64 -D _PTHREADS -D _REENTRANT -D SW_DLLIMPLEMENTATION -D SWUI_DLL_NAME="libswuilo.so" -D SYSTEM_LIBXML -D EXCEPTIONS_ON -D LIBO_INTERNAL_ONLY -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/external/boost/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/boost -I /home/maarten/src/libreoffice/core/sw/source/core/inc -I /home/maarten/src/libreoffice/core/sw/source/filter/inc -I /home/maarten/src/libreoffice/core/sw/source/uibase/inc -I /home/maarten/src/libreoffice/core/sw/inc -I /home/maarten/src/libreoffice/core/workdir/SdiTarget/sw/sdi -I /home/maarten/src/libreoffice/core/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include/linux -I /home/maarten/src/libreoffice/core/config_host -I /home/maarten/src/libreoffice/core/workdir/CustomTarget/officecfg/registry -I /home/maarten/src/libreoffice/core/workdir/CustomTarget/sw/generated -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/UnoApiHeadersTarget/oovbaapi/normal -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10 -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/x86_64-redhat-linux -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/backward -internal-isystem /usr/local/include -internal-isystem /usr/lib64/clang/11.0.0/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O0 -Wno-missing-braces -std=c++17 -fdeprecated-macro -fdebug-compilation-dir /home/maarten/src/libreoffice/core -ferror-limit 19 -fvisibility hidden -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -debug-info-kind=constructor -analyzer-output=html -faddrsig -o /home/maarten/tmp/wis/scan-build-libreoffice/output/report/2020-10-07-141433-9725-1 -x c++ /home/maarten/src/libreoffice/core/sw/source/uibase/docvw/PageBreakWin.cxx

/home/maarten/src/libreoffice/core/sw/source/uibase/docvw/PageBreakWin.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
10#include <bitmaps.hlst>
11
12#include <cmdid.h>
13#include <cntfrm.hxx>
14#include <txtfrm.hxx>
15#include <notxtfrm.hxx>
16#include <ndtxt.hxx>
17#include <DashedLine.hxx>
18#include <doc.hxx>
19#include <edtwin.hxx>
20#include <fmtpdsc.hxx>
21#include <IDocumentUndoRedo.hxx>
22#include <IDocumentContentOperations.hxx>
23#include <PageBreakWin.hxx>
24#include <pagefrm.hxx>
25#include <PostItMgr.hxx>
26#include <FrameControlsManager.hxx>
27#include <uiitems.hxx>
28#include <view.hxx>
29#include <viewopt.hxx>
30#include <wrtsh.hxx>
31
32#include <basegfx/color/bcolortools.hxx>
33#include <basegfx/polygon/b2dpolygon.hxx>
34#include <basegfx/polygon/b2dpolygontools.hxx>
35#include <basegfx/range/b2drectangle.hxx>
36#include <drawinglayer/primitive2d/discretebitmapprimitive2d.hxx>
37#include <drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx>
38#include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
39#include <drawinglayer/primitive2d/PolyPolygonColorPrimitive2D.hxx>
40#include <drawinglayer/primitive2d/PolyPolygonHairlinePrimitive2D.hxx>
41#include <drawinglayer/processor2d/baseprocessor2d.hxx>
42#include <drawinglayer/processor2d/processorfromoutputdevice.hxx>
43#include <editeng/formatbreakitem.hxx>
44#include <sfx2/dispatch.hxx>
45#include <sfx2/viewfrm.hxx>
46#include <svl/stritem.hxx>
47#include <vcl/canvastools.hxx>
48#include <vcl/event.hxx>
49#include <vcl/svapp.hxx>
50#include <vcl/settings.hxx>
51#include <memory>
52
53#define BUTTON_WIDTH30 30
54#define BUTTON_HEIGHT19 19
55#define ARROW_WIDTH9 9
56
57using namespace basegfx;
58using namespace basegfx::utils;
59
60namespace
61{
62 class SwBreakDashedLine : public SwDashedLine
63 {
64 private:
65 VclPtr<SwPageBreakWin> m_pWin;
66
67 public:
68 SwBreakDashedLine( vcl::Window* pParent, Color& ( *pColorFn )(), SwPageBreakWin* pWin ) :
69 SwDashedLine( pParent, pColorFn ),
70 m_pWin( pWin ) {};
71 virtual ~SwBreakDashedLine() override { disposeOnce(); }
72 virtual void dispose() override { m_pWin.clear(); SwDashedLine::dispose(); }
73
74 virtual void MouseMove( const MouseEvent& rMEvt ) override;
75 };
76
77 void SwBreakDashedLine::MouseMove( const MouseEvent& rMEvt )
78 {
79 if ( rMEvt.IsLeaveWindow() )
80 {
81 // don't fade if we just move to the 'button'
82 Point aEventPos( GetPosPixel() + rMEvt.GetPosPixel() );
83 if ( !m_pWin->Contains( aEventPos ) || !m_pWin->IsVisible() )
84 m_pWin->Fade( false );
85 }
86 else if ( !m_pWin->IsVisible() )
87 {
88 m_pWin->Fade( true );
89 }
90
91 if ( !rMEvt.IsSynthetic() && !m_pWin->IsVisible() )
92 {
93 m_pWin->UpdatePosition( rMEvt.GetPosPixel() );
94 }
95 }
96}
97
98SwPageBreakWin::SwPageBreakWin( SwEditWin* pEditWin, const SwFrame *pFrame ) :
99 SwFrameMenuButtonBase( pEditWin, pFrame ),
100 m_aBuilder(nullptr, AllSettings::GetUIRootDir(), "modules/swriter/ui/pagebreakmenu.ui", ""),
101 m_pPopupMenu(m_aBuilder.get_menu("menu")),
102 m_pLine( nullptr ),
103 m_bIsAppearing( false ),
104 m_nFadeRate( 100 ),
105 m_nDelayAppearing( 0 ),
106 m_bDestroyed( false )
107{
108 // Use pixels for the rest of the drawing
109 SetMapMode( MapMode ( MapUnit::MapPixel ) );
110
111 // Create the line control
112 m_pLine = VclPtr<SwBreakDashedLine>::Create( GetEditWin(), &SwViewOption::GetPageBreakColor, this );
113
114 // Set the popup menu
115 m_pPopupMenu->SetDeactivateHdl( LINK( this, SwPageBreakWin, HideHandler )::tools::detail::makeLink( ::tools::detail::castTo<SwPageBreakWin
*>(this), &SwPageBreakWin::LinkStubHideHandler)
);
116 SetPopupMenu(m_pPopupMenu);
117
118 m_aFadeTimer.SetTimeout( 50 );
119 m_aFadeTimer.SetInvokeHandler( LINK( this, SwPageBreakWin, FadeHandler )::tools::detail::makeLink( ::tools::detail::castTo<SwPageBreakWin
*>(this), &SwPageBreakWin::LinkStubFadeHandler)
);
120}
121
122SwPageBreakWin::~SwPageBreakWin( )
123{
124 disposeOnce();
125}
126
127void SwPageBreakWin::dispose()
128{
129 m_bDestroyed = true;
130 m_aFadeTimer.Stop();
131
132 m_pLine.disposeAndClear();
1
Calling 'VclPtr::disposeAndClear'
133 m_pPopupMenu.clear();
134 m_aBuilder.disposeBuilder();
135
136 SwFrameMenuButtonBase::dispose();
137}
138
139void SwPageBreakWin::Paint(vcl::RenderContext& rRenderContext, const ::tools::Rectangle&)
140{
141 const ::tools::Rectangle aRect(::tools::Rectangle(Point(0, 0), rRenderContext.PixelToLogic(GetSizePixel())));
142
143 // Properly paint the control
144 BColor aColor = SwViewOption::GetPageBreakColor().getBColor();
145
146 BColor aHslLine = rgb2hsl(aColor);
147 double nLuminance = aHslLine.getZ();
148 nLuminance += (1.0 - nLuminance) * 0.75;
149 if ( aHslLine.getZ() > 0.7 )
150 nLuminance = aHslLine.getZ() * 0.7;
151 aHslLine.setZ(nLuminance);
152 BColor aOtherColor = hsl2rgb(aHslLine);
153
154 const StyleSettings& rSettings = Application::GetSettings().GetStyleSettings();
155 if (rSettings.GetHighContrastMode())
156 {
157 aColor = rSettings.GetDialogTextColor().getBColor();
158 aOtherColor = rSettings.GetDialogColor().getBColor();
159 }
160
161 bool bRtl = AllSettings::GetLayoutRTL();
162
163 drawinglayer::primitive2d::Primitive2DContainer aSeq(3);
164 B2DRectangle aBRect = vcl::unotools::b2DRectangleFromRectangle(aRect);
165 B2DPolygon aPolygon = createPolygonFromRect(aBRect, 3.0 / BUTTON_WIDTH30, 3.0 / BUTTON_HEIGHT19);
166
167 // Create the polygon primitives
168 aSeq[0].set(new drawinglayer::primitive2d::PolyPolygonColorPrimitive2D(
169 B2DPolyPolygon(aPolygon), aOtherColor));
170 aSeq[1].set(new drawinglayer::primitive2d::PolygonHairlinePrimitive2D(
171 aPolygon, aColor));
172
173 // Create the primitive for the image
174 BitmapEx aBmpEx(RID_BMP_PAGE_BREAK"sw/res/page_break.png");
175 double nImgOfstX = 3.0;
176 if (bRtl)
177 nImgOfstX = aRect.Right() - aBmpEx.GetSizePixel().Width() - 3.0;
178 aSeq[2].set(new drawinglayer::primitive2d::DiscreteBitmapPrimitive2D(
179 aBmpEx, B2DPoint(nImgOfstX, 1.0)));
180
181 double nTop = double(aRect.getHeight()) / 2.0;
182 double nBottom = nTop + 4.0;
183 double nLeft = aRect.getWidth() - ARROW_WIDTH9 - 6.0;
184 if (bRtl)
185 nLeft = ARROW_WIDTH9 - 2.0;
186 double nRight = nLeft + 8.0;
187
188 B2DPolygon aTriangle;
189 aTriangle.append(B2DPoint(nLeft, nTop));
190 aTriangle.append(B2DPoint(nRight, nTop));
191 aTriangle.append(B2DPoint((nLeft + nRight) / 2.0, nBottom));
192 aTriangle.setClosed(true);
193
194 BColor aTriangleColor = COL_BLACK.getBColor();
195 if (Application::GetSettings().GetStyleSettings().GetHighContrastMode())
196 aTriangleColor = COL_WHITE.getBColor();
197
198 aSeq.emplace_back();
199 aSeq.back().set( new drawinglayer::primitive2d::PolyPolygonColorPrimitive2D(
200 B2DPolyPolygon(aTriangle), aTriangleColor));
201
202 drawinglayer::primitive2d::Primitive2DContainer aGhostedSeq(1);
203 double nFadeRate = double(m_nFadeRate) / 100.0;
204 const basegfx::BColorModifierSharedPtr aBColorModifier =
205 std::make_shared<basegfx::BColorModifier_interpolate>(COL_WHITE.getBColor(),
206 1.0 - nFadeRate);
207 aGhostedSeq[0].set( new drawinglayer::primitive2d::ModifiedColorPrimitive2D(
208 aSeq, aBColorModifier));
209
210 // Create the processor and process the primitives
211 const drawinglayer::geometry::ViewInformation2D aNewViewInfos;
212 std::unique_ptr<drawinglayer::processor2d::BaseProcessor2D> pProcessor(
213 drawinglayer::processor2d::createBaseProcessor2DFromOutputDevice(rRenderContext, aNewViewInfos));
214
215 pProcessor->process(aGhostedSeq);
216}
217
218void SwPageBreakWin::Select()
219{
220 SwFrameControlPtr pThis = GetEditWin()->GetFrameControlsManager( ).GetControl( FrameControlType::PageBreak, GetFrame() );
221
222 OString sIdent = GetCurItemIdent();
223 if (sIdent == "edit")
224 {
225 const SwLayoutFrame* pBodyFrame = static_cast< const SwLayoutFrame* >( GetPageFrame()->Lower() );
226 while ( pBodyFrame && !pBodyFrame->IsBodyFrame() )
227 pBodyFrame = static_cast< const SwLayoutFrame* >( pBodyFrame->GetNext() );
228
229 SwEditWin* pEditWin = GetEditWin();
230
231 if ( pBodyFrame )
232 {
233 SwWrtShell& rSh = pEditWin->GetView().GetWrtShell();
234 bool bOldLock = rSh.IsViewLocked();
235 rSh.LockView( true );
236
237 if ( pBodyFrame->Lower()->IsTabFrame() )
238 {
239 rSh.Push( );
240 rSh.ClearMark();
241
242 SwContentFrame *pCnt = const_cast< SwContentFrame* >( pBodyFrame->ContainsContent() );
243 SwContentNode* pNd = pCnt->IsTextFrame()
244 ? static_cast<SwTextFrame*>(pCnt)->GetTextNodeFirst()
245 : static_cast<SwNoTextFrame*>(pCnt)->GetNode();
246 rSh.SetSelection( *pNd );
247
248 SfxStringItem aItem(pEditWin->GetView().GetPool().GetWhich(FN_FORMAT_TABLE_DLG((20000 + 400) + 60)), "textflow");
249 pEditWin->GetView().GetViewFrame()->GetDispatcher()->ExecuteList(
250 FN_FORMAT_TABLE_DLG((20000 + 400) + 60),
251 SfxCallMode::SYNCHRON | SfxCallMode::RECORD,
252 { &aItem });
253
254 rSh.Pop(SwCursorShell::PopMode::DeleteCurrent);
255 }
256 else
257 {
258 SwContentFrame *pCnt = const_cast< SwContentFrame* >( pBodyFrame->ContainsContent() );
259 SwContentNode* pNd = pCnt->IsTextFrame()
260 ? static_cast<SwTextFrame*>(pCnt)->GetTextNodeFirst()
261 : static_cast<SwNoTextFrame*>(pCnt)->GetNode();
262
263 SwPaM aPaM( *pNd );
264 SwPaMItem aPaMItem( pEditWin->GetView().GetPool( ).GetWhich( FN_PARAM_PAM((20000 + 2400)+27) ), &aPaM );
265 SfxStringItem aItem( pEditWin->GetView().GetPool( ).GetWhich( SID_PARA_DLG( 10000 + 297 ) ), "textflow" );
266 pEditWin->GetView().GetViewFrame()->GetDispatcher()->ExecuteList(
267 SID_PARA_DLG( 10000 + 297 ),
268 SfxCallMode::SYNCHRON | SfxCallMode::RECORD,
269 { &aItem, &aPaMItem });
270 }
271 rSh.LockView( bOldLock );
272 pEditWin->GrabFocus( );
273 }
274 }
275 else if (sIdent == "delete")
276 {
277 const SwLayoutFrame* pBodyFrame = static_cast< const SwLayoutFrame* >( GetPageFrame()->Lower() );
278 while ( pBodyFrame && !pBodyFrame->IsBodyFrame() )
279 pBodyFrame = static_cast< const SwLayoutFrame* >( pBodyFrame->GetNext() );
280
281 if ( pBodyFrame )
282 {
283
284 SwContentFrame *pCnt = const_cast< SwContentFrame* >( pBodyFrame->ContainsContent() );
285 SwContentNode* pNd = pCnt->IsTextFrame()
286 ? static_cast<SwTextFrame*>(pCnt)->GetTextNodeFirst()
287 : static_cast<SwNoTextFrame*>(pCnt)->GetNode();
288
289 pNd->GetDoc().GetIDocumentUndoRedo( ).StartUndo( SwUndoId::UI_DELETE_PAGE_BREAK, nullptr );
290
291 SfxItemSet aSet(
292 GetEditWin()->GetView().GetWrtShell().GetAttrPool(),
293 svl::Items<RES_PAGEDESC, RES_BREAK>{});
294 aSet.Put( SvxFormatBreakItem( SvxBreak::NONE, RES_BREAK ) );
295 aSet.Put( SwFormatPageDesc( nullptr ) );
296
297 SwPaM aPaM( *pNd );
298 pNd->GetDoc().getIDocumentContentOperations().InsertItemSet(
299 aPaM, aSet, SetAttrMode::DEFAULT, GetPageFrame()->getRootFrame());
300
301 pNd->GetDoc().GetIDocumentUndoRedo( ).EndUndo( SwUndoId::UI_DELETE_PAGE_BREAK, nullptr );
302 }
303 }
304
305 // Only fade if there is more than this temporary shared pointer:
306 // The main reference has been deleted due to a page break removal
307 if ( pThis.use_count() > 1 )
308 Fade( false );
309}
310
311void SwPageBreakWin::MouseMove( const MouseEvent& rMEvt )
312{
313 if ( rMEvt.IsLeaveWindow() )
314 {
315 // don't fade if we just move to the 'line', or the popup menu is open
316 Point aEventPos( rMEvt.GetPosPixel() + rMEvt.GetPosPixel() );
317 if ( !Contains( aEventPos ) && !PopupMenu::IsInExecute() )
318 Fade( false );
319 }
320 else if ( !IsVisible() )
321 Fade( true );
322}
323
324void SwPageBreakWin::Activate( )
325{
326 Fade( true );
327 MenuButton::Activate();
328}
329
330void SwPageBreakWin::UpdatePosition(const std::optional<Point>& xEvtPt)
331{
332 if ( xEvtPt )
333 {
334 if ( xEvtPt == m_xMousePt )
335 return;
336 m_xMousePt = xEvtPt;
337 }
338
339 const SwPageFrame* pPageFrame = GetPageFrame();
340 const SwFrame* pPrevPage = pPageFrame;
341 do
342 {
343 pPrevPage = pPrevPage->GetPrev();
344 }
345 while ( pPrevPage && ( ( pPrevPage->getFrameArea().Top( ) == pPageFrame->getFrameArea().Top( ) )
346 || static_cast< const SwPageFrame* >( pPrevPage )->IsEmptyPage( ) ) );
347
348 ::tools::Rectangle aBoundRect = GetEditWin()->LogicToPixel( pPageFrame->GetBoundRect(GetEditWin()).SVRect() );
349 ::tools::Rectangle aFrameRect = GetEditWin()->LogicToPixel( pPageFrame->getFrameArea().SVRect() );
350
351 long nYLineOffset = ( aBoundRect.Top() + aFrameRect.Top() ) / 2;
352 if ( pPrevPage )
353 {
354 ::tools::Rectangle aPrevFrameRect = GetEditWin()->LogicToPixel( pPrevPage->getFrameArea().SVRect() );
355 nYLineOffset = ( aPrevFrameRect.Bottom() + aFrameRect.Top() ) / 2;
356 }
357
358 // Get the page + sidebar coords
359 long nPgLeft = aFrameRect.Left();
360 long nPgRight = aFrameRect.Right();
361
362 unsigned long nSidebarWidth = 0;
363 const SwPostItMgr* pPostItMngr = GetEditWin()->GetView().GetWrtShell().GetPostItMgr();
364 if ( pPostItMngr && pPostItMngr->HasNotes() && pPostItMngr->ShowNotes() )
365 nSidebarWidth = pPostItMngr->GetSidebarBorderWidth( true ) + pPostItMngr->GetSidebarWidth( true );
366
367 if ( pPageFrame->SidebarPosition( ) == sw::sidebarwindows::SidebarPosition::LEFT )
368 nPgLeft -= nSidebarWidth;
369 else if ( pPageFrame->SidebarPosition( ) == sw::sidebarwindows::SidebarPosition::RIGHT )
370 nPgRight += nSidebarWidth;
371
372 Size aBtnSize( BUTTON_WIDTH30 + ARROW_WIDTH9, BUTTON_HEIGHT19 );
373
374 // Place the button on the left or right?
375 ::tools::Rectangle aVisArea = GetEditWin()->LogicToPixel( GetEditWin()->GetView().GetVisArea() );
376
377 long nLineLeft = std::max( nPgLeft, aVisArea.Left() );
378 long nLineRight = std::min( nPgRight, aVisArea.Right() );
379 long nBtnLeft = nLineLeft;
380
381 if ( m_xMousePt )
382 {
383 nBtnLeft = nLineLeft + m_xMousePt->X() - aBtnSize.getWidth() / 2;
384
385 if ( nBtnLeft < nLineLeft )
386 nBtnLeft = nLineLeft;
387 else if ( ( nBtnLeft + aBtnSize.getWidth() ) > nLineRight )
388 nBtnLeft = nLineRight - aBtnSize.getWidth();
389 }
390
391 // Set the button position
392 Point aBtnPos( nBtnLeft, nYLineOffset - BUTTON_HEIGHT19 / 2 );
393 SetPosSizePixel( aBtnPos, aBtnSize );
394
395 // Set the line position
396 Point aLinePos( nLineLeft, nYLineOffset - 5 );
397 Size aLineSize( nLineRight - nLineLeft, 10 );
398 m_pLine->SetPosSizePixel( aLinePos, aLineSize );
399}
400
401void SwPageBreakWin::ShowAll( bool bShow )
402{
403 m_pLine->Show( bShow );
404}
405
406bool SwPageBreakWin::Contains( const Point &rDocPt ) const
407{
408 ::tools::Rectangle aRect( GetPosPixel(), GetSizePixel() );
409 if ( aRect.IsInside( rDocPt ) )
410 return true;
411
412 ::tools::Rectangle aLineRect( m_pLine->GetPosPixel(), m_pLine->GetSizePixel() );
413 return aLineRect.IsInside( rDocPt );
414}
415
416void SwPageBreakWin::SetReadonly( bool bReadonly )
417{
418 ShowAll( !bReadonly );
419}
420
421void SwPageBreakWin::Fade( bool bFadeIn )
422{
423 m_bIsAppearing = bFadeIn;
424 if ( bFadeIn )
425 m_nDelayAppearing = 0;
426
427 if ( !m_bDestroyed && m_aFadeTimer.IsActive( ) )
428 m_aFadeTimer.Stop();
429 if ( !m_bDestroyed )
430 m_aFadeTimer.Start( );
431}
432
433IMPL_LINK_NOARG(SwPageBreakWin, HideHandler, Menu *, bool)bool SwPageBreakWin::LinkStubHideHandler(void * instance, Menu
* data) { return static_cast<SwPageBreakWin *>(instance
)->HideHandler(data); } bool SwPageBreakWin::HideHandler(__attribute__
((unused)) Menu *)
434{
435 Fade( false );
436
437 return false;
438}
439
440IMPL_LINK_NOARG(SwPageBreakWin, FadeHandler, Timer *, void)void SwPageBreakWin::LinkStubFadeHandler(void * instance, Timer
* data) { return static_cast<SwPageBreakWin *>(instance
)->FadeHandler(data); } void SwPageBreakWin::FadeHandler(__attribute__
((unused)) Timer *)
441{
442 const int TICKS_BEFORE_WE_APPEAR = 10;
443 if ( m_bIsAppearing && m_nDelayAppearing < TICKS_BEFORE_WE_APPEAR )
444 {
445 ++m_nDelayAppearing;
446 m_aFadeTimer.Start();
447 return;
448 }
449
450 if ( m_bIsAppearing && m_nFadeRate > 0 )
451 m_nFadeRate -= 25;
452 else if ( !m_bIsAppearing && m_nFadeRate < 100 )
453 m_nFadeRate += 25;
454
455 if ( m_nFadeRate != 100 && !IsVisible() )
456 Show();
457 else if ( m_nFadeRate == 100 && IsVisible( ) )
458 Hide();
459 else
460 {
461 UpdatePosition();
462 Invalidate();
463 }
464
465 if (IsVisible( ) && m_nFadeRate > 0 && m_nFadeRate < 100)
466 m_aFadeTimer.Start();
467}
468
469/* 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);
2
Calling copy constructor for 'Reference<vcl::Window>'
5
Returning from copy constructor for 'Reference<vcl::Window>'
204 m_rInnerRef.clear(); // we should use some 'swap' method ideally ;-)
6
Calling 'Reference::clear'
13
Returning; memory was released
205 if (aTmp.get()) {
14
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)
3
Assuming field 'm_pBody' is non-null
4
Taking true branch
77 m_pBody->acquire();
78 }
79
80#ifdef LIBO_INTERNAL_ONLY1
81 /** Move constructor...
82 */
83 Reference (Reference<reference_type> && handle) noexcept
84 : m_pBody (handle.m_pBody)
85 {
86 handle.m_pBody = nullptr;
87 }
88#endif
89
90#if defined LIBO_INTERNAL_ONLY1
91 /** Up-casting conversion constructor: Copies interface reference.
92
93 Does not work for up-casts to ambiguous bases.
94
95 @param rRef another reference
96 */
97 template< class derived_type >
98 inline Reference(
99 const Reference< derived_type > & rRef,
100 std::enable_if_t<std::is_base_of_v<reference_type, derived_type>, int> = 0 )
101 : m_pBody (rRef.get())
102 {
103 if (m_pBody)
104 m_pBody->acquire();
105 }
106#endif
107
108 /** Destructor...
109 */
110 ~Reference() COVERITY_NOEXCEPT_FALSE
111 {
112 if (m_pBody)
113 m_pBody->release();
114 }
115
116 /** Set...
117 Similar to assignment.
118 */
119 Reference<reference_type> &
120 SAL_CALL set (reference_type * pBody)
121 {
122 if (pBody)
123 pBody->acquire();
124 reference_type * const pOld = m_pBody;
125 m_pBody = pBody;
126 if (pOld)
127 pOld->release();
128 return *this;
129 }
130
131 /** Assignment.
132 Unbinds this instance from its body (if bound) and
133 bind it to the body represented by the handle.
134 */
135 Reference<reference_type> &
136 SAL_CALL operator= (const Reference<reference_type> & handle)
137 {
138 return set( handle.m_pBody );
139 }
140
141#ifdef LIBO_INTERNAL_ONLY1
142 /** Assignment.
143 * Unbinds this instance from its body (if bound),
144 * bind it to the body represented by the handle, and
145 * set the body represented by the handle to nullptr.
146 */
147 Reference<reference_type> &
148 operator= (Reference<reference_type> && handle)
149 {
150 // self-movement guts ourself
151 if (m_pBody)
152 m_pBody->release();
153 m_pBody = handle.m_pBody;
154 handle.m_pBody = nullptr;
155 return *this;
156 }
157#endif
158
159 /** Assignment...
160 */
161 Reference<reference_type> &
162 SAL_CALL operator= (reference_type * pBody)
163 {
164 return set( pBody );
165 }
166
167 /** Unbind the body from this handle.
168 Note that for a handle representing a large body,
169 "handle.clear().set(new body());" _might_
170 perform a little bit better than "handle.set(new body());",
171 since in the second case two large objects exist in memory
172 (the old body and the new body).
173 */
174 Reference<reference_type> & SAL_CALL clear()
175 {
176 if (m_pBody
6.1
Field 'm_pBody' is non-null
6.1
Field 'm_pBody' is non-null
6.1
Field 'm_pBody' is non-null
6.1
Field 'm_pBody' is non-null
)
7
Taking true branch
177 {
178 reference_type * const pOld = m_pBody;
179 m_pBody = NULL__null;
180 pOld->release();
8
Calling 'VclReferenceBase::release'
12
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;
15
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)
9
Assuming the condition is true
10
Taking true branch
40 delete this;
11
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