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 autofmt.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 SC_DLLIMPLEMENTATION -D SC_INFO_OSVERSION="LINUX" -D SYSTEM_LIBXML -D EXCEPTIONS_ON -D LIBO_INTERNAL_ONLY -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/liborcus/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/mdds/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/external/clew/source/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/sc/source/core/inc -I /home/maarten/src/libreoffice/core/sc/source/filter/inc -I /home/maarten/src/libreoffice/core/sc/source/ui/inc -I /home/maarten/src/libreoffice/core/sc/inc -I /home/maarten/src/libreoffice/core/workdir/SdiTarget/sc/sdi -I /home/maarten/src/libreoffice/core/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include/linux -I /home/maarten/src/libreoffice/core/config_host -I /home/maarten/src/libreoffice/core/workdir/CustomTarget/officecfg/registry -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/udkapi/normal -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/offapi/normal -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/sc/source/ui/miscdlgs/autofmt.cxx

/home/maarten/src/libreoffice/core/sc/source/ui/miscdlgs/autofmt.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 <scitems.hxx>
21#include <editeng/boxitem.hxx>
22#include <editeng/brushitem.hxx>
23#include <editeng/contouritem.hxx>
24#include <editeng/colritem.hxx>
25#include <editeng/crossedoutitem.hxx>
26#include <editeng/fontitem.hxx>
27#include <editeng/justifyitem.hxx>
28#include <editeng/lineitem.hxx>
29#include <editeng/postitem.hxx>
30#include <editeng/shdditem.hxx>
31#include <editeng/udlnitem.hxx>
32#include <editeng/wghtitem.hxx>
33#include <svl/zforlist.hxx>
34#include <svtools/scriptedtext.hxx>
35#include <svx/framelink.hxx>
36#include <vcl/settings.hxx>
37#include <vcl/svapp.hxx>
38#include <vcl/virdev.hxx>
39#include <comphelper/processfactory.hxx>
40#include <drawinglayer/processor2d/processor2dtools.hxx>
41#include <drawinglayer/processor2d/baseprocessor2d.hxx>
42
43#include <strings.hrc>
44#include <zforauto.hxx>
45#include <global.hxx>
46#include <autoform.hxx>
47#include <autofmt.hxx>
48#include <scresid.hxx>
49#include <document.hxx>
50#include <viewdata.hxx>
51
52#define FRAME_OFFSET 4
53
54// ScAutoFmtPreview
55
56ScAutoFmtPreview::ScAutoFmtPreview()
57 : pCurData(nullptr)
58 , bFitWidth(false)
59 , mbRTL(false)
60 , aStrJan(ScResId(STR_JANreinterpret_cast<char const *>("STR_JAN" "\004" u8"Jan"
)))
61 , aStrFeb(ScResId(STR_FEBreinterpret_cast<char const *>("STR_FEB" "\004" u8"Feb"
)))
62 , aStrMar(ScResId(STR_MARreinterpret_cast<char const *>("STR_MAR" "\004" u8"Mar"
)))
63 , aStrNorth(ScResId(STR_NORTHreinterpret_cast<char const *>("STR_NORTH" "\004" u8"North"
)))
64 , aStrMid(ScResId(STR_MIDreinterpret_cast<char const *>("STR_MID" "\004" u8"Mid"
)))
65 , aStrSouth(ScResId(STR_SOUTHreinterpret_cast<char const *>("STR_SOUTH" "\004" u8"South"
)))
66 , aStrSum(ScResId(STR_SUMreinterpret_cast<char const *>("STR_SUM" "\004" u8"Total"
)))
67 , pNumFmt(new SvNumberFormatter(::comphelper::getProcessComponentContext(), ScGlobal::eLnge))
68{
69 Init();
70}
71
72void ScAutoFmtPreview::SetDrawingArea(weld::DrawingArea* pDrawingArea)
73{
74 aVD.disposeAndReset(VclPtr<VirtualDevice>::Create(pDrawingArea->get_ref_device()));
75 CustomWidgetController::SetDrawingArea(pDrawingArea);
76}
77
78void ScAutoFmtPreview::Resize()
79{
80 Size aSize(GetOutputSizePixel());
81 aPrvSize = Size(aSize.Width() - 6, aSize.Height() - 30);
82 mnLabelColWidth = (aPrvSize.Width() - 4) / 4 - 12;
83 mnDataColWidth1 = (aPrvSize.Width() - 4 - 2 * mnLabelColWidth) / 3;
84 mnDataColWidth2 = (aPrvSize.Width() - 4 - 2 * mnLabelColWidth) / 4;
85 mnRowHeight = (aPrvSize.Height() - 4) / 5;
86 NotifyChange(pCurData);
87}
88
89ScAutoFmtPreview::~ScAutoFmtPreview()
90{
91}
1
Calling implicit destructor for 'ScopedVclPtrInstance<VirtualDevice>'
→
2
←
Calling '~ScopedVclPtr'
→
92
93static void lcl_SetFontProperties(
94 vcl::Font& rFont,
95 const SvxFontItem& rFontItem,
96 const SvxWeightItem& rWeightItem,
97 const SvxPostureItem& rPostureItem )
98{
99 rFont.SetFamily ( rFontItem.GetFamily() );
100 rFont.SetFamilyName ( rFontItem.GetFamilyName() );
101 rFont.SetStyleName ( rFontItem.GetStyleName() );
102 rFont.SetCharSet ( rFontItem.GetCharSet() );
103 rFont.SetPitch ( rFontItem.GetPitch() );
104 rFont.SetWeight ( rWeightItem.GetValue() );
105 rFont.SetItalic ( rPostureItem.GetValue() );
106}
107
108void ScAutoFmtPreview::MakeFonts(vcl::RenderContext const& rRenderContext, sal_uInt16 nIndex, vcl::Font& rFont, vcl::Font& rCJKFont, vcl::Font& rCTLFont)
109{
110 if ( !pCurData )
111 return;
112
113 rFont = rCJKFont = rCTLFont = rRenderContext.GetFont();
114 Size aFontSize(rFont.GetFontSize().Width(), 10 * rRenderContext.GetDPIScaleFactor());
115
116 const SvxFontItem* pFontItem = pCurData->GetItem( nIndex, ATTR_FONT );
117 const SvxWeightItem* pWeightItem = pCurData->GetItem( nIndex, ATTR_FONT_WEIGHT );
118 const SvxPostureItem* pPostureItem = pCurData->GetItem( nIndex, ATTR_FONT_POSTURE );
119 const SvxFontItem* pCJKFontItem = pCurData->GetItem( nIndex, ATTR_CJK_FONT );
120 const SvxWeightItem* pCJKWeightItem = pCurData->GetItem( nIndex, ATTR_CJK_FONT_WEIGHT );
121 const SvxPostureItem* pCJKPostureItem = pCurData->GetItem( nIndex, ATTR_CJK_FONT_POSTURE );
122 const SvxFontItem* pCTLFontItem = pCurData->GetItem( nIndex, ATTR_CTL_FONT );
123 const SvxWeightItem* pCTLWeightItem = pCurData->GetItem( nIndex, ATTR_CTL_FONT_WEIGHT );
124 const SvxPostureItem* pCTLPostureItem = pCurData->GetItem( nIndex, ATTR_CTL_FONT_POSTURE );
125 const SvxUnderlineItem* pUnderlineItem = pCurData->GetItem( nIndex, ATTR_FONT_UNDERLINE );
126 const SvxOverlineItem* pOverlineItem = pCurData->GetItem( nIndex, ATTR_FONT_OVERLINE );
127 const SvxCrossedOutItem* pCrossedOutItem = pCurData->GetItem( nIndex, ATTR_FONT_CROSSEDOUT );
128 const SvxContourItem* pContourItem = pCurData->GetItem( nIndex, ATTR_FONT_CONTOUR );
129 const SvxShadowedItem* pShadowedItem = pCurData->GetItem( nIndex, ATTR_FONT_SHADOWED );
130 const SvxColorItem* pColorItem = pCurData->GetItem( nIndex, ATTR_FONT_COLOR );
131
132 lcl_SetFontProperties( rFont, *pFontItem, *pWeightItem, *pPostureItem );
133 lcl_SetFontProperties( rCJKFont, *pCJKFontItem, *pCJKWeightItem, *pCJKPostureItem );
134 lcl_SetFontProperties( rCTLFont, *pCTLFontItem, *pCTLWeightItem, *pCTLPostureItem );
135
136 Color aColor( pColorItem->GetValue() );
137 if( aColor == COL_TRANSPARENT )
138 aColor = Application::GetSettings().GetStyleSettings().GetWindowTextColor();
139
140#define SETONALLFONTS( MethodName, Value ) \
141rFont.MethodName( Value ); rCJKFont.MethodName( Value ); rCTLFont.MethodName( Value );
142
143 SETONALLFONTS( SetUnderline, pUnderlineItem->GetValue() )
144 SETONALLFONTS( SetOverline, pOverlineItem->GetValue() )
145 SETONALLFONTS( SetStrikeout, pCrossedOutItem->GetValue() )
146 SETONALLFONTS( SetOutline, pContourItem->GetValue() )
147 SETONALLFONTS( SetShadow, pShadowedItem->GetValue() )
148 SETONALLFONTS( SetColor, aColor )
149 SETONALLFONTS( SetFontSize, aFontSize )
150 SETONALLFONTS( SetTransparent, true )
151
152#undef SETONALLFONTS
153}
154
155sal_uInt16 ScAutoFmtPreview::GetFormatIndex( size_t nCol, size_t nRow ) const
156{
157 static const sal_uInt16 pnFmtMap[] =
158 {
159 0, 1, 2, 1, 3,
160 4, 5, 6, 5, 7,
161 8, 9, 10, 9, 11,
162 4, 5, 6, 5, 7,
163 12, 13, 14, 13, 15
164 };
165 return pnFmtMap[ maArray.GetCellIndex( nCol, nRow, mbRTL ) ];
166}
167
168const SvxBoxItem& ScAutoFmtPreview::GetBoxItem( size_t nCol, size_t nRow ) const
169{
170 OSL_ENSURE( pCurData, "ScAutoFmtPreview::GetBoxItem - no format data found" )do { if (true && (!(pCurData))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/sc/source/ui/miscdlgs/autofmt.cxx"
":" "170" ": "), "%s", "ScAutoFmtPreview::GetBoxItem - no format data found"
); } } while (false);
171 return * pCurData->GetItem( GetFormatIndex( nCol, nRow ), ATTR_BORDER );
172}
173
174const SvxLineItem& ScAutoFmtPreview::GetDiagItem( size_t nCol, size_t nRow, bool bTLBR ) const
175{
176 OSL_ENSURE( pCurData, "ScAutoFmtPreview::GetDiagItem - no format data found" )do { if (true && (!(pCurData))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/sc/source/ui/miscdlgs/autofmt.cxx"
":" "176" ": "), "%s", "ScAutoFmtPreview::GetDiagItem - no format data found"
); } } while (false);
177 return * pCurData->GetItem( GetFormatIndex( nCol, nRow ), bTLBR ? ATTR_BORDER_TLBR : ATTR_BORDER_BLTR );
178}
179
180void ScAutoFmtPreview::DrawString(vcl::RenderContext& rRenderContext, size_t nCol, size_t nRow)
181{
182 if (!pCurData)
183 {
184 return;
185 }
186
187 // Emit the cell text
188
189 OUString cellString;
190 bool bNumFormat = pCurData->GetIncludeValueFormat();
191 sal_uInt32 nNum;
192 double nVal;
193 const Color* pDummy = nullptr;
194 sal_uInt16 nIndex = static_cast<sal_uInt16>(maArray.GetCellIndex(nCol, nRow, mbRTL));
195
196 switch (nIndex)
197 {
198 case 1: cellString = aStrJan; break;
199 case 2: cellString = aStrFeb; break;
200 case 3: cellString = aStrMar; break;
201 case 5: cellString = aStrNorth; break;
202 case 10: cellString = aStrMid; break;
203 case 15: cellString = aStrSouth; break;
204 case 4:
205 case 20: cellString = aStrSum; break;
206
207 case 6:
208 case 8:
209 case 16:
210 case 18: nVal = nIndex;
211 nNum = 5;
212 goto mknum;
213 case 17:
214 case 7: nVal = nIndex;
215 nNum = 6;
216 goto mknum;
217 case 11:
218 case 12:
219 case 13: nVal = nIndex;
220 nNum = 12 == nIndex ? 10 : 9;
221 goto mknum;
222
223 case 9: nVal = 21; nNum = 7; goto mknum;
224 case 14: nVal = 36; nNum = 11; goto mknum;
225 case 19: nVal = 51; nNum = 7; goto mknum;
226 case 21: nVal = 33; nNum = 13; goto mknum;
227 case 22: nVal = 36; nNum = 14; goto mknum;
228 case 23: nVal = 39; nNum = 13; goto mknum;
229 case 24: nVal = 108; nNum = 15;
230 mknum:
231 if (bNumFormat)
232 {
233 ScNumFormatAbbrev& rNumFormat = const_cast<ScNumFormatAbbrev&>(pCurData->GetNumFormat(sal_uInt16(nNum)));
234 nNum = rNumFormat.GetFormatIndex(*pNumFmt);
235 }
236 else
237 nNum = 0;
238 pNumFmt->GetOutputString(nVal, nNum, cellString, &pDummy);
239 break;
240 }
241
242 if (cellString.isEmpty())
243 return;
244
245 Size aStrSize;
246 sal_uInt16 nFmtIndex = GetFormatIndex( nCol, nRow );
247 const basegfx::B2DRange cellRange(maArray.GetCellRange( nCol, nRow, true ));
248 Point aPos(basegfx::fround(cellRange.getMinX()), basegfx::fround(cellRange.getMinY()));
249 sal_uInt16 nRightX = 0;
250 bool bJustify = pCurData->GetIncludeJustify();
251 SvxCellHorJustify eJustification;
252
253 SvtScriptedTextHelper aScriptedText(rRenderContext);
254
255 // Justification:
256
257 eJustification = mbRTL ? SvxCellHorJustify::Right : bJustify ?
258 pCurData->GetItem(nFmtIndex, ATTR_HOR_JUSTIFY)->GetValue() :
259 SvxCellHorJustify::Standard;
260
261 if (pCurData->GetIncludeFont())
262 {
263 vcl::Font aFont, aCJKFont, aCTLFont;
264 Size theMaxStrSize;
265
266 MakeFonts(rRenderContext, nFmtIndex, aFont, aCJKFont, aCTLFont);
267
268 theMaxStrSize = Size(basegfx::fround(cellRange.getWidth()), basegfx::fround(cellRange.getHeight()));
269 theMaxStrSize.AdjustWidth( -(FRAME_OFFSET) );
270 theMaxStrSize.AdjustHeight( -(FRAME_OFFSET) );
271
272 aScriptedText.SetFonts( &aFont, &aCJKFont, &aCTLFont );
273 aScriptedText.SetText(cellString, xBreakIter);
274 aStrSize = aScriptedText.GetTextSize();
275
276 if (theMaxStrSize.Height() < aStrSize.Height())
277 {
278 // if the string does not fit in the row using this font,
279 // the default font is used
280 aScriptedText.SetDefaultFont();
281 aStrSize = aScriptedText.GetTextSize();
282 }
283 while((theMaxStrSize.Width() <= aStrSize.Width()) && (cellString.getLength() > 1))
284 {
285 if( eJustification == SvxCellHorJustify::Right )
286 cellString = cellString.copy(1);
287 else
288 cellString = cellString.copy(0, cellString.getLength() - 1 );
289
290 aScriptedText.SetText( cellString, xBreakIter );
291 aStrSize = aScriptedText.GetTextSize();
292 }
293 }
294 else
295 {
296 aScriptedText.SetDefaultFont();
297 aScriptedText.SetText( cellString, xBreakIter );
298 aStrSize = aScriptedText.GetTextSize();
299 }
300
301 nRightX = sal_uInt16(basegfx::fround(cellRange.getWidth()) - aStrSize.Width() - FRAME_OFFSET);
302
303 // vertical (always center):
304
305 aPos.AdjustY((mnRowHeight - static_cast<sal_uInt16>(aStrSize.Height())) / 2 );
306
307 // horizontal
308
309 if (eJustification != SvxCellHorJustify::Standard)
310 {
311 sal_uInt16 nHorPos = sal_uInt16((basegfx::fround(cellRange.getWidth())-aStrSize.Width()) / 2);
312 //sal_uInt16 nHorPos = sal_uInt16((basegfx::fround(cellRange.getWidth())-aStrSize.Width()) / 2);
313
314 switch (eJustification)
315 {
316 case SvxCellHorJustify::Left:
317 aPos.AdjustX(FRAME_OFFSET );
318 break;
319 case SvxCellHorJustify::Right:
320 aPos.AdjustX(nRightX );
321 break;
322 case SvxCellHorJustify::Block:
323 case SvxCellHorJustify::Repeat:
324 case SvxCellHorJustify::Center:
325 aPos.AdjustX(nHorPos );
326 break;
327 // coverity[dead_error_line] - following conditions exist to avoid compiler warning
328 case SvxCellHorJustify::Standard:
329 default:
330 // Standard is not handled here
331 break;
332 }
333 }
334 else
335 {
336
337 // Standard justification
338
339 if (nCol == 0 || nRow == 0)
340 {
341 // Text label to the left or sum left adjusted
342 aPos.AdjustX(FRAME_OFFSET );
343 }
344 else
345 {
346 // Numbers/Dates right adjusted
347 aPos.AdjustX(nRightX );
348 }
349 }
350 aScriptedText.DrawText(aPos);
351}
352
353#undef FRAME_OFFSET
354
355void ScAutoFmtPreview::DrawBackground(vcl::RenderContext& rRenderContext)
356{
357 if (!pCurData)
358 return;
359
360 for(size_t nRow = 0; nRow < 5; ++nRow)
361 {
362 for(size_t nCol = 0; nCol < 5; ++nCol)
363 {
364 const SvxBrushItem* pItem =
365 pCurData->GetItem( GetFormatIndex( nCol, nRow ), ATTR_BACKGROUND );
366
367 rRenderContext.Push( PushFlags::LINECOLOR | PushFlags::FILLCOLOR );
368 rRenderContext.SetLineColor();
369 rRenderContext.SetFillColor( pItem->GetColor() );
370
371 const basegfx::B2DRange aCellRange(maArray.GetCellRange( nCol, nRow, true ));
372 rRenderContext.DrawRect(
373 tools::Rectangle(
374 basegfx::fround(aCellRange.getMinX()), basegfx::fround(aCellRange.getMinY()),
375 basegfx::fround(aCellRange.getMaxX()), basegfx::fround(aCellRange.getMaxY())));
376
377 rRenderContext.Pop();
378 }
379 }
380}
381
382void ScAutoFmtPreview::PaintCells(vcl::RenderContext& rRenderContext)
383{
384 if (!pCurData)
385 return;
386
387 // 1) background
388 if (pCurData->GetIncludeBackground())
389 DrawBackground(rRenderContext);
390
391 // 2) values
392 for(size_t nRow = 0; nRow < 5; ++nRow)
393 for(size_t nCol = 0; nCol < 5; ++nCol)
394 DrawString(rRenderContext, nCol, nRow);
395
396 // 3) border
397 if (!pCurData->GetIncludeFrame())
398 return;
399
400 const drawinglayer::geometry::ViewInformation2D aNewViewInformation2D;
401 std::unique_ptr<drawinglayer::processor2d::BaseProcessor2D> pProcessor2D(
402 drawinglayer::processor2d::createPixelProcessor2DFromOutputDevice(
403 rRenderContext,
404 aNewViewInformation2D));
405
406 if (pProcessor2D)
407 {
408 pProcessor2D->process(maArray.CreateB2DPrimitiveArray());
409 pProcessor2D.reset();
410 }
411}
412
413void ScAutoFmtPreview::Init()
414{
415 maArray.Initialize( 5, 5 );
416 mnLabelColWidth = 0;
417 mnDataColWidth1 = 0;
418 mnDataColWidth2 = 0;
419 mnRowHeight = 0;
420 CalcCellArray( false );
421 CalcLineMap();
422}
423
424void ScAutoFmtPreview::DetectRTL(const ScViewData *pViewData)
425{
426 SCTAB nCurrentTab = pViewData->GetTabNo();
427 ScDocument& rDoc = pViewData->GetDocument();
428 mbRTL = rDoc.IsLayoutRTL(nCurrentTab);
429 xBreakIter = rDoc.GetBreakIterator();
430}
431
432void ScAutoFmtPreview::CalcCellArray( bool bFitWidthP )
433{
434 maArray.SetXOffset( 2 );
435 maArray.SetAllColWidths( bFitWidthP ? mnDataColWidth2 : mnDataColWidth1 );
436 maArray.SetColWidth( 0, mnLabelColWidth );
437 maArray.SetColWidth( 4, mnLabelColWidth );
438
439 maArray.SetYOffset( 2 );
440 maArray.SetAllRowHeights( mnRowHeight );
441
442 aPrvSize.setWidth( maArray.GetWidth() + 4 );
443 aPrvSize.setHeight( maArray.GetHeight() + 4 );
444}
445
446static void lclSetStyleFromBorder( svx::frame::Style& rStyle, const ::editeng::SvxBorderLine* pBorder )
447{
448 rStyle.Set( pBorder, 1.0 / TWIPS_PER_POINT20.0, 5 );
449}
450
451void ScAutoFmtPreview::CalcLineMap()
452{
453 if ( !pCurData )
454 return;
455
456 for( size_t nRow = 0; nRow < 5; ++nRow )
457 {
458 for( size_t nCol = 0; nCol < 5; ++nCol )
459 {
460 svx::frame::Style aStyle;
461
462 const SvxBoxItem& rItem = GetBoxItem( nCol, nRow );
463 lclSetStyleFromBorder( aStyle, rItem.GetLeft() );
464 maArray.SetCellStyleLeft( nCol, nRow, aStyle );
465 lclSetStyleFromBorder( aStyle, rItem.GetRight() );
466 maArray.SetCellStyleRight( nCol, nRow, aStyle );
467 lclSetStyleFromBorder( aStyle, rItem.GetTop() );
468 maArray.SetCellStyleTop( nCol, nRow, aStyle );
469 lclSetStyleFromBorder( aStyle, rItem.GetBottom() );
470 maArray.SetCellStyleBottom( nCol, nRow, aStyle );
471
472 lclSetStyleFromBorder( aStyle, GetDiagItem( nCol, nRow, true ).GetLine() );
473 maArray.SetCellStyleTLBR( nCol, nRow, aStyle );
474 lclSetStyleFromBorder( aStyle, GetDiagItem( nCol, nRow, false ).GetLine() );
475 maArray.SetCellStyleBLTR( nCol, nRow, aStyle );
476 }
477 }
478}
479
480void ScAutoFmtPreview::NotifyChange( ScAutoFormatData* pNewData )
481{
482 if (pNewData)
483 {
484 pCurData = pNewData;
485 bFitWidth = pNewData->GetIncludeWidthHeight();
486 }
487
488 CalcCellArray( bFitWidth );
489 CalcLineMap();
490
491 Invalidate();
492}
493
494void ScAutoFmtPreview::DoPaint(vcl::RenderContext& rRenderContext)
495{
496 rRenderContext.Push(PushFlags::ALL);
497 DrawModeFlags nOldDrawMode = aVD->GetDrawMode();
498
499 Size aWndSize(GetOutputSizePixel());
500 vcl::Font aFont(aVD->GetFont());
501 Color aBackCol(rRenderContext.GetSettings().GetStyleSettings().GetWindowColor());
502 tools::Rectangle aRect(Point(), aWndSize);
503
504 aFont.SetTransparent( true );
505 aVD->SetFont(aFont);
506 aVD->SetLineColor();
507 aVD->SetFillColor(aBackCol);
508 aVD->SetOutputSize(aWndSize);
509 aVD->DrawRect(aRect);
510
511 PaintCells(*aVD);
512
513 rRenderContext.SetLineColor();
514 rRenderContext.SetFillColor(aBackCol);
515 rRenderContext.DrawRect(aRect);
516
517 Point aPos((aWndSize.Width() - aPrvSize.Width()) / 2, (aWndSize.Height() - aPrvSize.Height()) / 2);
518 if (AllSettings::GetLayoutRTL())
519 aPos.setX( -aPos.X() );
520 rRenderContext.DrawOutDev(aPos, aWndSize, Point(), aWndSize, *aVD);
521 aVD->SetDrawMode(nOldDrawMode);
522 rRenderContext.Pop();
523}
524
525void ScAutoFmtPreview::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& /*rRect*/)
526{
527 DoPaint(rRenderContext);
528}
529
530/* 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);
4
←
Calling copy constructor for 'Reference<VirtualDevice>'
→
7
←
Returning from copy constructor for 'Reference<VirtualDevice>'
→
204 m_rInnerRef.clear(); // we should use some 'swap' method ideally ;-)
8
←
Calling 'Reference::clear'
→
15
←
Returning; memory was released
→
205 if (aTmp.get()) {
16
←
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();
3
←
Calling 'VclPtr::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)
5
←
Assuming field 'm_pBody' is non-null
→
6
←
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
8.1
Field 'm_pBody' is non-null
8.1
Field 'm_pBody' is non-null
8.1
Field 'm_pBody' is non-null
8.1
Field 'm_pBody' is non-null
)
9
←
Taking true branch
→
177 {
178 reference_type * const pOld = m_pBody;
179 m_pBody = NULL__null;
180 pOld->release();
10
←
Calling 'VclReferenceBase::release'
→
14
←
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;
17
←
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)
11
←
Assuming the condition is true
→
12
←
Taking true branch
→
40 delete this;
13
←
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