File: | home/maarten/src/libreoffice/core/include/rtl/ref.hxx |
Warning: | line 192, column 9 Use of memory after it is freed |
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1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |||
2 | /* | |||
3 | * This file is part of the LibreOffice project. | |||
4 | * | |||
5 | * This Source Code Form is subject to the terms of the Mozilla Public | |||
6 | * License, v. 2.0. If a copy of the MPL was not distributed with this | |||
7 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. | |||
8 | * | |||
9 | * This file incorporates work covered by the following license notice: | |||
10 | * | |||
11 | * Licensed to the Apache Software Foundation (ASF) under one or more | |||
12 | * contributor license agreements. See the NOTICE file distributed | |||
13 | * with this work for additional information regarding copyright | |||
14 | * ownership. The ASF licenses this file to you under the Apache | |||
15 | * License, Version 2.0 (the "License"); you may not use this file | |||
16 | * except in compliance with the License. You may obtain a copy of | |||
17 | * the License at http://www.apache.org/licenses/LICENSE-2.0 . | |||
18 | */ | |||
19 | ||||
20 | #include <sal/config.h> | |||
21 | #include <sal/log.hxx> | |||
22 | ||||
23 | #include <tools/debug.hxx> | |||
24 | #include <vcl/gdimtf.hxx> | |||
25 | #include <vcl/graph.hxx> | |||
26 | #include <vcl/metaact.hxx> | |||
27 | #include <vcl/virdev.hxx> | |||
28 | #include <vcl/outdev.hxx> | |||
29 | #include <vcl/toolkit/unowrap.hxx> | |||
30 | #include <vcl/svapp.hxx> | |||
31 | #include <vcl/sysdata.hxx> | |||
32 | ||||
33 | #include <salgdi.hxx> | |||
34 | #include <window.h> | |||
35 | #include <outdev.h> | |||
36 | ||||
37 | #ifdef DISABLE_DYNLOADING | |||
38 | // Linking all needed LO code into one .so/executable, these already | |||
39 | // exist in the tools library, so put them in the anonymous namespace | |||
40 | // here to avoid clash... | |||
41 | namespace { | |||
42 | #endif | |||
43 | #ifdef DISABLE_DYNLOADING | |||
44 | } | |||
45 | #endif | |||
46 | ||||
47 | // Begin initializer and accessor public functions | |||
48 | ||||
49 | OutputDevice::OutputDevice(OutDevType eOutDevType) : | |||
50 | meOutDevType(eOutDevType), | |||
51 | maRegion(true), | |||
52 | maFillColor( COL_WHITE ), | |||
53 | maTextLineColor( COL_TRANSPARENT ), | |||
54 | mxSettings( new AllSettings(Application::GetSettings()) ) | |||
55 | { | |||
56 | mpGraphics = nullptr; | |||
57 | mpUnoGraphicsList = nullptr; | |||
58 | mpPrevGraphics = nullptr; | |||
59 | mpNextGraphics = nullptr; | |||
60 | mpMetaFile = nullptr; | |||
61 | mpFontInstance = nullptr; | |||
62 | mpDeviceFontList = nullptr; | |||
63 | mpDeviceFontSizeList = nullptr; | |||
64 | mpAlphaVDev = nullptr; | |||
65 | mpExtOutDevData = nullptr; | |||
66 | mnOutOffX = 0; | |||
67 | mnOutOffY = 0; | |||
68 | mnOutWidth = 0; | |||
69 | mnOutHeight = 0; | |||
70 | mnDPIX = 0; | |||
71 | mnDPIY = 0; | |||
72 | mnDPIScalePercentage = 100; | |||
73 | mnTextOffX = 0; | |||
74 | mnTextOffY = 0; | |||
75 | mnOutOffOrigX = 0; | |||
76 | mnOutOffLogicX = 0; | |||
77 | mnOutOffOrigY = 0; | |||
78 | mnOutOffLogicY = 0; | |||
79 | mnEmphasisAscent = 0; | |||
80 | mnEmphasisDescent = 0; | |||
81 | mnDrawMode = DrawModeFlags::Default; | |||
82 | mnTextLayoutMode = ComplexTextLayoutFlags::Default; | |||
83 | ||||
84 | if( AllSettings::GetLayoutRTL() ) //#i84553# tip BiDi preference to RTL | |||
85 | mnTextLayoutMode = ComplexTextLayoutFlags::BiDiRtl | ComplexTextLayoutFlags::TextOriginLeft; | |||
86 | ||||
87 | meOutDevViewType = OutDevViewType::DontKnow; | |||
88 | mbMap = false; | |||
89 | mbClipRegion = false; | |||
90 | mbBackground = false; | |||
91 | mbOutput = true; | |||
92 | mbDevOutput = false; | |||
93 | mbOutputClipped = false; | |||
94 | maTextColor = COL_BLACK; | |||
95 | maOverlineColor = COL_TRANSPARENT; | |||
96 | meRasterOp = RasterOp::OverPaint; | |||
97 | mnAntialiasing = AntialiasingFlags::NONE; | |||
98 | meTextLanguage = LANGUAGE_SYSTEMLanguageType(0x0000); // TODO: get default from configuration? | |||
99 | mbLineColor = true; | |||
100 | mbFillColor = true; | |||
101 | mbInitLineColor = true; | |||
102 | mbInitFillColor = true; | |||
103 | mbInitFont = true; | |||
104 | mbInitTextColor = true; | |||
105 | mbInitClipRegion = true; | |||
106 | mbClipRegionSet = false; | |||
107 | mbNewFont = true; | |||
108 | mbTextLines = false; | |||
109 | mbTextSpecial = false; | |||
110 | mbRefPoint = false; | |||
111 | mbEnableRTL = false; // mirroring must be explicitly allowed (typically for windows only) | |||
112 | ||||
113 | // struct ImplMapRes | |||
114 | maMapRes.mnMapOfsX = 0; | |||
115 | maMapRes.mnMapOfsY = 0; | |||
116 | maMapRes.mnMapScNumX = 1; | |||
117 | maMapRes.mnMapScNumY = 1; | |||
118 | maMapRes.mnMapScDenomX = 1; | |||
119 | maMapRes.mnMapScDenomY = 1; | |||
120 | // struct ImplThresholdRes | |||
121 | maThresRes.mnThresLogToPixX = 0; | |||
122 | maThresRes.mnThresLogToPixY = 0; | |||
123 | maThresRes.mnThresPixToLogX = 0; | |||
124 | maThresRes.mnThresPixToLogY = 0; | |||
125 | ||||
126 | // struct ImplOutDevData- see #i82615# | |||
127 | mpOutDevData.reset(new ImplOutDevData); | |||
128 | mpOutDevData->mpRotateDev = nullptr; | |||
129 | mpOutDevData->mpRecordLayout = nullptr; | |||
130 | ||||
131 | // #i75163# | |||
132 | mpOutDevData->mpViewTransform = nullptr; | |||
133 | mpOutDevData->mpInverseViewTransform = nullptr; | |||
134 | } | |||
135 | ||||
136 | OutputDevice::~OutputDevice() | |||
137 | { | |||
138 | disposeOnce(); | |||
139 | } | |||
140 | ||||
141 | void OutputDevice::dispose() | |||
142 | { | |||
143 | if ( GetUnoGraphicsList() ) | |||
| ||||
144 | { | |||
145 | UnoWrapperBase* pWrapper = UnoWrapperBase::GetUnoWrapper( false ); | |||
146 | if ( pWrapper ) | |||
147 | pWrapper->ReleaseAllGraphics( this ); | |||
148 | delete mpUnoGraphicsList; | |||
149 | mpUnoGraphicsList = nullptr; | |||
150 | } | |||
151 | ||||
152 | mpOutDevData->mpRotateDev.disposeAndClear(); | |||
153 | ||||
154 | // #i75163# | |||
155 | ImplInvalidateViewTransform(); | |||
156 | ||||
157 | mpOutDevData.reset(); | |||
158 | ||||
159 | // for some reason, we haven't removed state from the stack properly | |||
160 | if ( !maOutDevStateStack.empty() ) | |||
161 | SAL_WARN( "vcl.gdi", "OutputDevice::~OutputDevice(): OutputDevice::Push() calls != OutputDevice::Pop() calls" )do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_WARN , "vcl.gdi")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult ( ::sal::detail::StreamStart() << "OutputDevice::~OutputDevice(): OutputDevice::Push() calls != OutputDevice::Pop() calls" ) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl.gdi" ), ("/home/maarten/src/libreoffice/core/vcl/source/outdev/outdev.cxx" ":" "161" ": "), ::sal::detail::unwrapStream( ::sal::detail:: StreamStart() << "OutputDevice::~OutputDevice(): OutputDevice::Push() calls != OutputDevice::Pop() calls" ), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream << "OutputDevice::~OutputDevice(): OutputDevice::Push() calls != OutputDevice::Pop() calls" ; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl.gdi" ), ("/home/maarten/src/libreoffice/core/vcl/source/outdev/outdev.cxx" ":" "161" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL : if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart () << "OutputDevice::~OutputDevice(): OutputDevice::Push() calls != OutputDevice::Pop() calls" ) == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl.gdi" ), ("/home/maarten/src/libreoffice/core/vcl/source/outdev/outdev.cxx" ":" "161" ": "), ::sal::detail::unwrapStream( ::sal::detail:: StreamStart() << "OutputDevice::~OutputDevice(): OutputDevice::Push() calls != OutputDevice::Pop() calls" ), 0); } else { ::std::ostringstream sal_detail_stream; sal_detail_stream << "OutputDevice::~OutputDevice(): OutputDevice::Push() calls != OutputDevice::Pop() calls" ; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl.gdi" ), ("/home/maarten/src/libreoffice/core/vcl/source/outdev/outdev.cxx" ":" "161" ": "), sal_detail_stream, 0); }; std::abort(); break ; } } } while (false); | |||
162 | maOutDevStateStack.clear(); | |||
163 | ||||
164 | // release the active font instance | |||
165 | mpFontInstance.clear(); | |||
166 | ||||
167 | // remove cached results of GetDevFontList/GetDevSizeList | |||
168 | mpDeviceFontList.reset(); | |||
169 | mpDeviceFontSizeList.reset(); | |||
170 | ||||
171 | // release ImplFontCache specific to this OutputDevice | |||
172 | mxFontCache.reset(); | |||
173 | ||||
174 | // release ImplFontList specific to this OutputDevice | |||
175 | mxFontCollection.reset(); | |||
176 | ||||
177 | mpAlphaVDev.disposeAndClear(); | |||
178 | mpPrevGraphics.clear(); | |||
179 | mpNextGraphics.clear(); | |||
180 | VclReferenceBase::dispose(); | |||
181 | } | |||
182 | ||||
183 | bool OutputDevice::IsVirtual() const | |||
184 | { | |||
185 | return false; | |||
186 | } | |||
187 | ||||
188 | SalGraphics* OutputDevice::GetGraphics() | |||
189 | { | |||
190 | DBG_TESTSOLARMUTEX()do { DbgTestSolarMutex(); } while(false); | |||
191 | ||||
192 | if (!mpGraphics && !AcquireGraphics()) | |||
193 | SAL_WARN("vcl.gdi", "No mpGraphics set")do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_WARN , "vcl.gdi")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult ( ::sal::detail::StreamStart() << "No mpGraphics set") == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl.gdi" ), ("/home/maarten/src/libreoffice/core/vcl/source/outdev/outdev.cxx" ":" "193" ": "), ::sal::detail::unwrapStream( ::sal::detail:: StreamStart() << "No mpGraphics set"), 0); } else { ::std ::ostringstream sal_detail_stream; sal_detail_stream << "No mpGraphics set"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN ), ("vcl.gdi"), ("/home/maarten/src/libreoffice/core/vcl/source/outdev/outdev.cxx" ":" "193" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL : if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart () << "No mpGraphics set") == 1) { ::sal_detail_log( (:: SAL_DETAIL_LOG_LEVEL_WARN), ("vcl.gdi"), ("/home/maarten/src/libreoffice/core/vcl/source/outdev/outdev.cxx" ":" "193" ": "), ::sal::detail::unwrapStream( ::sal::detail:: StreamStart() << "No mpGraphics set"), 0); } else { ::std ::ostringstream sal_detail_stream; sal_detail_stream << "No mpGraphics set"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN ), ("vcl.gdi"), ("/home/maarten/src/libreoffice/core/vcl/source/outdev/outdev.cxx" ":" "193" ": "), sal_detail_stream, 0); }; std::abort(); break ; } } } while (false); | |||
194 | ||||
195 | return mpGraphics; | |||
196 | } | |||
197 | ||||
198 | SalGraphics const *OutputDevice::GetGraphics() const | |||
199 | { | |||
200 | DBG_TESTSOLARMUTEX()do { DbgTestSolarMutex(); } while(false); | |||
201 | ||||
202 | if (!mpGraphics && !AcquireGraphics()) | |||
203 | SAL_WARN("vcl.gdi", "No mpGraphics set")do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_WARN , "vcl.gdi")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case SAL_DETAIL_LOG_ACTION_LOG: if (sizeof ::sal::detail::getResult ( ::sal::detail::StreamStart() << "No mpGraphics set") == 1) { ::sal_detail_log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("vcl.gdi" ), ("/home/maarten/src/libreoffice/core/vcl/source/outdev/outdev.cxx" ":" "203" ": "), ::sal::detail::unwrapStream( ::sal::detail:: StreamStart() << "No mpGraphics set"), 0); } else { ::std ::ostringstream sal_detail_stream; sal_detail_stream << "No mpGraphics set"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN ), ("vcl.gdi"), ("/home/maarten/src/libreoffice/core/vcl/source/outdev/outdev.cxx" ":" "203" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL : if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart () << "No mpGraphics set") == 1) { ::sal_detail_log( (:: SAL_DETAIL_LOG_LEVEL_WARN), ("vcl.gdi"), ("/home/maarten/src/libreoffice/core/vcl/source/outdev/outdev.cxx" ":" "203" ": "), ::sal::detail::unwrapStream( ::sal::detail:: StreamStart() << "No mpGraphics set"), 0); } else { ::std ::ostringstream sal_detail_stream; sal_detail_stream << "No mpGraphics set"; ::sal::detail::log( (::SAL_DETAIL_LOG_LEVEL_WARN ), ("vcl.gdi"), ("/home/maarten/src/libreoffice/core/vcl/source/outdev/outdev.cxx" ":" "203" ": "), sal_detail_stream, 0); }; std::abort(); break ; } } } while (false); | |||
204 | ||||
205 | return mpGraphics; | |||
206 | } | |||
207 | ||||
208 | void OutputDevice::SetConnectMetaFile( GDIMetaFile* pMtf ) | |||
209 | { | |||
210 | mpMetaFile = pMtf; | |||
211 | } | |||
212 | ||||
213 | void OutputDevice::SetSettings( const AllSettings& rSettings ) | |||
214 | { | |||
215 | *mxSettings = rSettings; | |||
216 | ||||
217 | if( mpAlphaVDev ) | |||
218 | mpAlphaVDev->SetSettings( rSettings ); | |||
219 | } | |||
220 | ||||
221 | SystemGraphicsData OutputDevice::GetSystemGfxData() const | |||
222 | { | |||
223 | if (!mpGraphics && !AcquireGraphics()) | |||
224 | return SystemGraphicsData(); | |||
225 | ||||
226 | return mpGraphics->GetGraphicsData(); | |||
227 | } | |||
228 | ||||
229 | #if ENABLE_CAIRO_CANVAS1 | |||
230 | ||||
231 | bool OutputDevice::SupportsCairo() const | |||
232 | { | |||
233 | if (!mpGraphics && !AcquireGraphics()) | |||
234 | return false; | |||
235 | ||||
236 | return mpGraphics->SupportsCairo(); | |||
237 | } | |||
238 | ||||
239 | cairo::SurfaceSharedPtr OutputDevice::CreateSurface(const cairo::CairoSurfaceSharedPtr& rSurface) const | |||
240 | { | |||
241 | if (!mpGraphics && !AcquireGraphics()) | |||
242 | return cairo::SurfaceSharedPtr(); | |||
243 | return mpGraphics->CreateSurface(rSurface); | |||
244 | } | |||
245 | ||||
246 | cairo::SurfaceSharedPtr OutputDevice::CreateSurface(int x, int y, int width, int height) const | |||
247 | { | |||
248 | if (!mpGraphics && !AcquireGraphics()) | |||
249 | return cairo::SurfaceSharedPtr(); | |||
250 | return mpGraphics->CreateSurface(*this, x, y, width, height); | |||
251 | } | |||
252 | ||||
253 | cairo::SurfaceSharedPtr OutputDevice::CreateBitmapSurface(const BitmapSystemData& rData, const Size& rSize) const | |||
254 | { | |||
255 | if (!mpGraphics && !AcquireGraphics()) | |||
256 | return cairo::SurfaceSharedPtr(); | |||
257 | return mpGraphics->CreateBitmapSurface(*this, rData, rSize); | |||
258 | } | |||
259 | ||||
260 | css::uno::Any OutputDevice::GetNativeSurfaceHandle(cairo::SurfaceSharedPtr& rSurface, const basegfx::B2ISize& rSize) const | |||
261 | { | |||
262 | if (!mpGraphics && !AcquireGraphics()) | |||
263 | return css::uno::Any(); | |||
264 | return mpGraphics->GetNativeSurfaceHandle(rSurface, rSize); | |||
265 | } | |||
266 | ||||
267 | #endif // ENABLE_CAIRO_CANVAS | |||
268 | ||||
269 | css::uno::Any OutputDevice::GetSystemGfxDataAny() const | |||
270 | { | |||
271 | const SystemGraphicsData aSysData = GetSystemGfxData(); | |||
272 | css::uno::Sequence< sal_Int8 > aSeq( reinterpret_cast<sal_Int8 const *>(&aSysData), | |||
273 | aSysData.nSize ); | |||
274 | ||||
275 | return css::uno::makeAny(aSeq); | |||
276 | } | |||
277 | ||||
278 | void OutputDevice::SetRefPoint() | |||
279 | { | |||
280 | ||||
281 | if ( mpMetaFile ) | |||
282 | mpMetaFile->AddAction( new MetaRefPointAction( Point(), false ) ); | |||
283 | ||||
284 | mbRefPoint = false; | |||
285 | maRefPoint.setX(0); | |||
286 | maRefPoint.setY(0); | |||
287 | ||||
288 | if( mpAlphaVDev ) | |||
289 | mpAlphaVDev->SetRefPoint(); | |||
290 | } | |||
291 | ||||
292 | void OutputDevice::SetRefPoint( const Point& rRefPoint ) | |||
293 | { | |||
294 | ||||
295 | if ( mpMetaFile ) | |||
296 | mpMetaFile->AddAction( new MetaRefPointAction( rRefPoint, true ) ); | |||
297 | ||||
298 | mbRefPoint = true; | |||
299 | maRefPoint = rRefPoint; | |||
300 | ||||
301 | if( mpAlphaVDev ) | |||
302 | mpAlphaVDev->SetRefPoint( rRefPoint ); | |||
303 | } | |||
304 | ||||
305 | sal_uInt16 OutputDevice::GetBitCount() const | |||
306 | { | |||
307 | // we need a graphics instance | |||
308 | if ( !mpGraphics && !AcquireGraphics() ) | |||
309 | return 0; | |||
310 | ||||
311 | return mpGraphics->GetBitCount(); | |||
312 | } | |||
313 | ||||
314 | void OutputDevice::SetOutOffXPixel(long nOutOffX) | |||
315 | { | |||
316 | mnOutOffX = nOutOffX; | |||
317 | } | |||
318 | ||||
319 | void OutputDevice::SetOutOffYPixel(long nOutOffY) | |||
320 | { | |||
321 | mnOutOffY = nOutOffY; | |||
322 | } | |||
323 | ||||
324 | css::uno::Reference< css::awt::XGraphics > OutputDevice::CreateUnoGraphics() | |||
325 | { | |||
326 | UnoWrapperBase* pWrapper = UnoWrapperBase::GetUnoWrapper(); | |||
327 | return pWrapper ? pWrapper->CreateGraphics( this ) : css::uno::Reference< css::awt::XGraphics >(); | |||
328 | } | |||
329 | ||||
330 | std::vector< VCLXGraphics* > *OutputDevice::CreateUnoGraphicsList() | |||
331 | { | |||
332 | mpUnoGraphicsList = new std::vector< VCLXGraphics* >; | |||
333 | return mpUnoGraphicsList; | |||
334 | } | |||
335 | ||||
336 | // Helper public function | |||
337 | ||||
338 | bool OutputDevice::SupportsOperation( OutDevSupportType eType ) const | |||
339 | { | |||
340 | if( !mpGraphics && !AcquireGraphics() ) | |||
341 | return false; | |||
342 | const bool bHasSupport = mpGraphics->supportsOperation( eType ); | |||
343 | return bHasSupport; | |||
344 | } | |||
345 | ||||
346 | // Direct OutputDevice drawing public functions | |||
347 | ||||
348 | void OutputDevice::DrawOutDev( const Point& rDestPt, const Size& rDestSize, | |||
349 | const Point& rSrcPt, const Size& rSrcSize ) | |||
350 | { | |||
351 | if( ImplIsRecordLayout() ) | |||
352 | return; | |||
353 | ||||
354 | if ( RasterOp::Invert == meRasterOp ) | |||
355 | { | |||
356 | DrawRect( tools::Rectangle( rDestPt, rDestSize ) ); | |||
357 | return; | |||
358 | } | |||
359 | ||||
360 | if ( mpMetaFile ) | |||
361 | { | |||
362 | const Bitmap aBmp( GetBitmap( rSrcPt, rSrcSize ) ); | |||
363 | mpMetaFile->AddAction( new MetaBmpScaleAction( rDestPt, rDestSize, aBmp ) ); | |||
364 | } | |||
365 | ||||
366 | if ( !IsDeviceOutputNecessary() ) | |||
367 | return; | |||
368 | ||||
369 | if ( !mpGraphics && !AcquireGraphics() ) | |||
370 | return; | |||
371 | ||||
372 | if ( mbInitClipRegion ) | |||
373 | InitClipRegion(); | |||
374 | ||||
375 | if ( mbOutputClipped ) | |||
376 | return; | |||
377 | ||||
378 | long nSrcWidth = ImplLogicWidthToDevicePixel( rSrcSize.Width() ); | |||
379 | long nSrcHeight = ImplLogicHeightToDevicePixel( rSrcSize.Height() ); | |||
380 | long nDestWidth = ImplLogicWidthToDevicePixel( rDestSize.Width() ); | |||
381 | long nDestHeight = ImplLogicHeightToDevicePixel( rDestSize.Height() ); | |||
382 | ||||
383 | if (nSrcWidth && nSrcHeight && nDestWidth && nDestHeight) | |||
384 | { | |||
385 | SalTwoRect aPosAry(ImplLogicXToDevicePixel(rSrcPt.X()), ImplLogicYToDevicePixel(rSrcPt.Y()), | |||
386 | nSrcWidth, nSrcHeight, | |||
387 | ImplLogicXToDevicePixel(rDestPt.X()), ImplLogicYToDevicePixel(rDestPt.Y()), | |||
388 | nDestWidth, nDestHeight); | |||
389 | ||||
390 | const tools::Rectangle aSrcOutRect( Point( mnOutOffX, mnOutOffY ), | |||
391 | Size( mnOutWidth, mnOutHeight ) ); | |||
392 | ||||
393 | AdjustTwoRect( aPosAry, aSrcOutRect ); | |||
394 | ||||
395 | if ( aPosAry.mnSrcWidth && aPosAry.mnSrcHeight && aPosAry.mnDestWidth && aPosAry.mnDestHeight ) | |||
396 | mpGraphics->CopyBits( aPosAry, nullptr, this, nullptr ); | |||
397 | } | |||
398 | ||||
399 | if( mpAlphaVDev ) | |||
400 | mpAlphaVDev->DrawOutDev( rDestPt, rDestSize, rSrcPt, rSrcSize ); | |||
401 | } | |||
402 | ||||
403 | void OutputDevice::DrawOutDev( const Point& rDestPt, const Size& rDestSize, | |||
404 | const Point& rSrcPt, const Size& rSrcSize, | |||
405 | const OutputDevice& rOutDev ) | |||
406 | { | |||
407 | if ( ImplIsRecordLayout() ) | |||
408 | return; | |||
409 | ||||
410 | if ( RasterOp::Invert == meRasterOp ) | |||
411 | { | |||
412 | DrawRect( tools::Rectangle( rDestPt, rDestSize ) ); | |||
413 | return; | |||
414 | } | |||
415 | ||||
416 | if ( mpMetaFile ) | |||
417 | { | |||
418 | if (rOutDev.mpAlphaVDev) | |||
419 | { | |||
420 | const BitmapEx aBmpEx(rOutDev.GetBitmapEx(rSrcPt, rSrcSize)); | |||
421 | mpMetaFile->AddAction(new MetaBmpExScaleAction(rDestPt, rDestSize, aBmpEx)); | |||
422 | } | |||
423 | else | |||
424 | { | |||
425 | const Bitmap aBmp(rOutDev.GetBitmap(rSrcPt, rSrcSize)); | |||
426 | mpMetaFile->AddAction(new MetaBmpScaleAction(rDestPt, rDestSize, aBmp)); | |||
427 | } | |||
428 | } | |||
429 | ||||
430 | if ( !IsDeviceOutputNecessary() ) | |||
431 | return; | |||
432 | ||||
433 | if ( !mpGraphics && !AcquireGraphics() ) | |||
434 | return; | |||
435 | ||||
436 | if ( mbInitClipRegion ) | |||
437 | InitClipRegion(); | |||
438 | ||||
439 | if ( mbOutputClipped ) | |||
440 | return; | |||
441 | ||||
442 | if (rOutDev.mpAlphaVDev) | |||
443 | { | |||
444 | // alpha-blend source over destination | |||
445 | DrawBitmapEx(rDestPt, rDestSize, rOutDev.GetBitmapEx(rSrcPt, rSrcSize)); | |||
446 | } | |||
447 | else | |||
448 | { | |||
449 | SalTwoRect aPosAry(rOutDev.ImplLogicXToDevicePixel(rSrcPt.X()), | |||
450 | rOutDev.ImplLogicYToDevicePixel(rSrcPt.Y()), | |||
451 | rOutDev.ImplLogicWidthToDevicePixel(rSrcSize.Width()), | |||
452 | rOutDev.ImplLogicHeightToDevicePixel(rSrcSize.Height()), | |||
453 | ImplLogicXToDevicePixel(rDestPt.X()), | |||
454 | ImplLogicYToDevicePixel(rDestPt.Y()), | |||
455 | ImplLogicWidthToDevicePixel(rDestSize.Width()), | |||
456 | ImplLogicHeightToDevicePixel(rDestSize.Height())); | |||
457 | ||||
458 | drawOutDevDirect(&rOutDev, aPosAry); | |||
459 | ||||
460 | // #i32109#: make destination rectangle opaque - source has no alpha | |||
461 | if (mpAlphaVDev) | |||
462 | mpAlphaVDev->ImplFillOpaqueRectangle(tools::Rectangle(rDestPt, rDestSize)); | |||
463 | } | |||
464 | } | |||
465 | ||||
466 | void OutputDevice::CopyArea( const Point& rDestPt, | |||
467 | const Point& rSrcPt, const Size& rSrcSize, | |||
468 | bool bWindowInvalidate ) | |||
469 | { | |||
470 | if ( ImplIsRecordLayout() ) | |||
471 | return; | |||
472 | ||||
473 | RasterOp eOldRop = GetRasterOp(); | |||
474 | SetRasterOp( RasterOp::OverPaint ); | |||
475 | ||||
476 | if ( !IsDeviceOutputNecessary() ) | |||
477 | return; | |||
478 | ||||
479 | if ( !mpGraphics && !AcquireGraphics() ) | |||
480 | return; | |||
481 | ||||
482 | if ( mbInitClipRegion ) | |||
483 | InitClipRegion(); | |||
484 | ||||
485 | if ( mbOutputClipped ) | |||
486 | return; | |||
487 | ||||
488 | long nSrcWidth = ImplLogicWidthToDevicePixel( rSrcSize.Width() ); | |||
489 | long nSrcHeight = ImplLogicHeightToDevicePixel( rSrcSize.Height() ); | |||
490 | if (nSrcWidth && nSrcHeight) | |||
491 | { | |||
492 | SalTwoRect aPosAry(ImplLogicXToDevicePixel(rSrcPt.X()), ImplLogicYToDevicePixel(rSrcPt.Y()), | |||
493 | nSrcWidth, nSrcHeight, | |||
494 | ImplLogicXToDevicePixel(rDestPt.X()), ImplLogicYToDevicePixel(rDestPt.Y()), | |||
495 | nSrcWidth, nSrcHeight); | |||
496 | ||||
497 | const tools::Rectangle aSrcOutRect( Point( mnOutOffX, mnOutOffY ), | |||
498 | Size( mnOutWidth, mnOutHeight ) ); | |||
499 | ||||
500 | AdjustTwoRect( aPosAry, aSrcOutRect ); | |||
501 | ||||
502 | CopyDeviceArea( aPosAry, bWindowInvalidate ); | |||
503 | } | |||
504 | ||||
505 | SetRasterOp( eOldRop ); | |||
506 | ||||
507 | if( mpAlphaVDev ) | |||
508 | mpAlphaVDev->CopyArea( rDestPt, rSrcPt, rSrcSize, bWindowInvalidate ); | |||
509 | } | |||
510 | ||||
511 | // Direct OutputDevice drawing protected function | |||
512 | ||||
513 | void OutputDevice::CopyDeviceArea( SalTwoRect& aPosAry, bool /*bWindowInvalidate*/) | |||
514 | { | |||
515 | if (aPosAry.mnSrcWidth == 0 || aPosAry.mnSrcHeight == 0 || aPosAry.mnDestWidth == 0 || aPosAry.mnDestHeight == 0) | |||
516 | return; | |||
517 | ||||
518 | aPosAry.mnDestWidth = aPosAry.mnSrcWidth; | |||
519 | aPosAry.mnDestHeight = aPosAry.mnSrcHeight; | |||
520 | mpGraphics->CopyBits(aPosAry, nullptr, this, nullptr); | |||
521 | } | |||
522 | ||||
523 | // Direct OutputDevice drawing private function | |||
524 | ||||
525 | void OutputDevice::drawOutDevDirect( const OutputDevice* pSrcDev, SalTwoRect& rPosAry ) | |||
526 | { | |||
527 | SalGraphics* pSrcGraphics; | |||
528 | if (const OutputDevice* pCheckedSrc = DrawOutDevDirectCheck(pSrcDev)) | |||
529 | { | |||
530 | if (!pCheckedSrc->mpGraphics && !pCheckedSrc->AcquireGraphics()) | |||
531 | return; | |||
532 | pSrcGraphics = pCheckedSrc->mpGraphics; | |||
533 | } | |||
534 | else | |||
535 | pSrcGraphics = nullptr; | |||
536 | ||||
537 | if (!mpGraphics && !AcquireGraphics()) | |||
538 | return; | |||
539 | ||||
540 | // #102532# Offset only has to be pseudo window offset | |||
541 | const tools::Rectangle aSrcOutRect( Point( pSrcDev->mnOutOffX, pSrcDev->mnOutOffY ), | |||
542 | Size( pSrcDev->mnOutWidth, pSrcDev->mnOutHeight ) ); | |||
543 | ||||
544 | AdjustTwoRect( rPosAry, aSrcOutRect ); | |||
545 | ||||
546 | if ( rPosAry.mnSrcWidth && rPosAry.mnSrcHeight && rPosAry.mnDestWidth && rPosAry.mnDestHeight ) | |||
547 | { | |||
548 | // if this is no window, but pSrcDev is a window | |||
549 | // mirroring may be required | |||
550 | // because only windows have a SalGraphicsLayout | |||
551 | // mirroring is performed here | |||
552 | DrawOutDevDirectProcess( pSrcDev, rPosAry, pSrcGraphics); | |||
553 | } | |||
554 | } | |||
555 | ||||
556 | const OutputDevice* OutputDevice::DrawOutDevDirectCheck(const OutputDevice* pSrcDev) const | |||
557 | { | |||
558 | return this == pSrcDev ? nullptr : pSrcDev; | |||
559 | } | |||
560 | ||||
561 | void OutputDevice::DrawOutDevDirectProcess( const OutputDevice* pSrcDev, SalTwoRect& rPosAry, SalGraphics* pSrcGraphics ) | |||
562 | { | |||
563 | if( pSrcGraphics && (pSrcGraphics->GetLayout() & SalLayoutFlags::BiDiRtl) ) | |||
564 | { | |||
565 | SalTwoRect aPosAry2 = rPosAry; | |||
566 | pSrcGraphics->mirror( aPosAry2.mnSrcX, aPosAry2.mnSrcWidth, pSrcDev ); | |||
567 | mpGraphics->CopyBits( aPosAry2, pSrcGraphics, this, pSrcDev ); | |||
568 | } | |||
569 | else | |||
570 | mpGraphics->CopyBits( rPosAry, pSrcGraphics, this, pSrcDev ); | |||
571 | } | |||
572 | ||||
573 | tools::Rectangle OutputDevice::GetBackgroundComponentBounds() const | |||
574 | { | |||
575 | return tools::Rectangle( Point( 0, 0 ), GetOutputSizePixel() ); | |||
576 | } | |||
577 | ||||
578 | // Layout public functions | |||
579 | ||||
580 | void OutputDevice::EnableRTL( bool bEnable ) | |||
581 | { | |||
582 | mbEnableRTL = bEnable; | |||
583 | ||||
584 | if( mpAlphaVDev ) | |||
585 | mpAlphaVDev->EnableRTL( bEnable ); | |||
586 | } | |||
587 | ||||
588 | bool OutputDevice::ImplIsAntiparallel() const | |||
589 | { | |||
590 | bool bRet = false; | |||
591 | if( AcquireGraphics() ) | |||
592 | { | |||
593 | if( ( (mpGraphics->GetLayout() & SalLayoutFlags::BiDiRtl) && ! IsRTLEnabled() ) || | |||
594 | ( ! (mpGraphics->GetLayout() & SalLayoutFlags::BiDiRtl) && IsRTLEnabled() ) ) | |||
595 | { | |||
596 | bRet = true; | |||
597 | } | |||
598 | } | |||
599 | return bRet; | |||
600 | } | |||
601 | ||||
602 | // note: the coordinates to be remirrored are in frame coordinates ! | |||
603 | ||||
604 | void OutputDevice::ReMirror( Point &rPoint ) const | |||
605 | { | |||
606 | rPoint.setX( mnOutOffX + mnOutWidth - 1 - rPoint.X() + mnOutOffX ); | |||
607 | } | |||
608 | void OutputDevice::ReMirror( tools::Rectangle &rRect ) const | |||
609 | { | |||
610 | long nWidth = rRect.Right() - rRect.Left(); | |||
611 | ||||
612 | //long lc_x = rRect.nLeft - mnOutOffX; // normalize | |||
613 | //lc_x = mnOutWidth - nWidth - 1 - lc_x; // mirror | |||
614 | //rRect.nLeft = lc_x + mnOutOffX; // re-normalize | |||
615 | ||||
616 | rRect.SetLeft( mnOutOffX + mnOutWidth - nWidth - 1 - rRect.Left() + mnOutOffX ); | |||
617 | rRect.SetRight( rRect.Left() + nWidth ); | |||
618 | } | |||
619 | ||||
620 | void OutputDevice::ReMirror( vcl::Region &rRegion ) const | |||
621 | { | |||
622 | RectangleVector aRectangles; | |||
623 | rRegion.GetRegionRectangles(aRectangles); | |||
624 | vcl::Region aMirroredRegion; | |||
625 | ||||
626 | for (auto & rectangle : aRectangles) | |||
627 | { | |||
628 | ReMirror(rectangle); | |||
629 | aMirroredRegion.Union(rectangle); | |||
630 | } | |||
631 | ||||
632 | rRegion = aMirroredRegion; | |||
633 | ||||
634 | } | |||
635 | ||||
636 | bool OutputDevice::HasMirroredGraphics() const | |||
637 | { | |||
638 | return ( AcquireGraphics() && (mpGraphics->GetLayout() & SalLayoutFlags::BiDiRtl) ); | |||
639 | } | |||
640 | ||||
641 | bool OutputDevice::ImplIsRecordLayout() const | |||
642 | { | |||
643 | if (!mpOutDevData) | |||
644 | return false; | |||
645 | ||||
646 | return mpOutDevData->mpRecordLayout; | |||
647 | } | |||
648 | ||||
649 | // EPS public function | |||
650 | ||||
651 | bool OutputDevice::DrawEPS( const Point& rPoint, const Size& rSize, | |||
652 | const GfxLink& rGfxLink, GDIMetaFile* pSubst ) | |||
653 | { | |||
654 | bool bDrawn(true); | |||
655 | ||||
656 | if ( mpMetaFile ) | |||
657 | { | |||
658 | GDIMetaFile aSubst; | |||
659 | ||||
660 | if( pSubst ) | |||
661 | aSubst = *pSubst; | |||
662 | ||||
663 | mpMetaFile->AddAction( new MetaEPSAction( rPoint, rSize, rGfxLink, aSubst ) ); | |||
664 | } | |||
665 | ||||
666 | if ( !IsDeviceOutputNecessary() || ImplIsRecordLayout() ) | |||
667 | return bDrawn; | |||
668 | ||||
669 | if( mbOutputClipped ) | |||
670 | return bDrawn; | |||
671 | ||||
672 | tools::Rectangle aRect( ImplLogicToDevicePixel( tools::Rectangle( rPoint, rSize ) ) ); | |||
673 | ||||
674 | if( !aRect.IsEmpty() ) | |||
675 | { | |||
676 | // draw the real EPS graphics | |||
677 | if( rGfxLink.GetData() && rGfxLink.GetDataSize() ) | |||
678 | { | |||
679 | if( !mpGraphics && !AcquireGraphics() ) | |||
680 | return bDrawn; | |||
681 | ||||
682 | if( mbInitClipRegion ) | |||
683 | InitClipRegion(); | |||
684 | ||||
685 | aRect.Justify(); | |||
686 | bDrawn = mpGraphics->DrawEPS( aRect.Left(), aRect.Top(), aRect.GetWidth(), aRect.GetHeight(), | |||
687 | const_cast<sal_uInt8*>(rGfxLink.GetData()), rGfxLink.GetDataSize(), this ); | |||
688 | } | |||
689 | ||||
690 | // else draw the substitution graphics | |||
691 | if( !bDrawn && pSubst ) | |||
692 | { | |||
693 | GDIMetaFile* pOldMetaFile = mpMetaFile; | |||
694 | ||||
695 | mpMetaFile = nullptr; | |||
696 | Graphic( *pSubst ).Draw( this, rPoint, rSize ); | |||
697 | mpMetaFile = pOldMetaFile; | |||
698 | } | |||
699 | } | |||
700 | ||||
701 | if( mpAlphaVDev ) | |||
702 | mpAlphaVDev->DrawEPS( rPoint, rSize, rGfxLink, pSubst ); | |||
703 | ||||
704 | return bDrawn; | |||
705 | } | |||
706 | ||||
707 | /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |
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 | |
36 | class VclReferenceBase; |
37 | |
38 | namespace vcl::detail { |
39 | |
40 | template<typename> |
41 | constexpr bool isIncompleteOrDerivedFromVclReferenceBase(...) { return true; } |
42 | |
43 | template<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 | */ |
56 | template <class reference_type> |
57 | class 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 | |
66 | public: |
67 | /** Constructor... |
68 | */ |
69 | VclPtr() |
70 | : m_rInnerRef() |
71 | {} |
72 | |
73 | /** Constructor... |
74 | */ |
75 | VclPtr (reference_type * pBody) |
76 | : m_rInnerRef(pBody) |
77 | {} |
78 | |
79 | /** Constructor... that doesn't take a ref. |
80 | */ |
81 | VclPtr (reference_type * pBody, __sal_NoAcquire) |
82 | : m_rInnerRef(pBody, SAL_NO_ACQUIRE) |
83 | {} |
84 | |
85 | /** Up-casting conversion constructor: Copies interface reference. |
86 | |
87 | Does not work for up-casts to ambiguous bases. For the special case of |
88 | up-casting to Reference< XInterface >, see the corresponding conversion |
89 | operator. |
90 | |
91 | @param rRef another reference |
92 | */ |
93 | template< class derived_type > |
94 | VclPtr( |
95 | const VclPtr< derived_type > & rRef, |
96 | typename std::enable_if< |
97 | std::is_base_of<reference_type, derived_type>::value, int>::type |
98 | = 0 ) |
99 | : m_rInnerRef( static_cast<reference_type*>(rRef) ) |
100 | { |
101 | } |
102 | |
103 | #if defined(DBG_UTIL) && !defined(_WIN32) |
104 | virtual ~VclPtr() |
105 | { |
106 | assert(m_rInnerRef.get() == nullptr || vclmain::isAlive())(static_cast <bool> (m_rInnerRef.get() == nullptr || vclmain ::isAlive()) ? void (0) : __assert_fail ("m_rInnerRef.get() == nullptr || vclmain::isAlive()" , "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx" , 106, __extension__ __PRETTY_FUNCTION__)); |
107 | // We can be one of the intermediate counts, but if we are the last |
108 | // VclPtr keeping this object alive, then something forgot to call dispose(). |
109 | assert((!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1)(static_cast <bool> ((!m_rInnerRef.get() || m_rInnerRef ->isDisposed() || m_rInnerRef->getRefCount() > 1) && "someone forgot to call dispose()") ? void (0) : __assert_fail ("(!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1) && \"someone forgot to call dispose()\"" , "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx" , 110, __extension__ __PRETTY_FUNCTION__)) |
110 | && "someone forgot to call dispose()")(static_cast <bool> ((!m_rInnerRef.get() || m_rInnerRef ->isDisposed() || m_rInnerRef->getRefCount() > 1) && "someone forgot to call dispose()") ? void (0) : __assert_fail ("(!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1) && \"someone forgot to call dispose()\"" , "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx" , 110, __extension__ __PRETTY_FUNCTION__)); |
111 | } |
112 | VclPtr(VclPtr const &) = default; |
113 | VclPtr(VclPtr &&) = default; |
114 | VclPtr & operator =(VclPtr const &) = default; |
115 | VclPtr & operator =(VclPtr &&) = default; |
116 | #endif |
117 | |
118 | /** |
119 | * A construction helper for VclPtr. Since VclPtr types are created |
120 | * with a reference-count of one - to help fit into the existing |
121 | * code-flow; this helps us to construct them easily. |
122 | * |
123 | * For more details on the design please see vcl/README.lifecycle |
124 | * |
125 | * @tparam reference_type must be a subclass of vcl::Window |
126 | */ |
127 | template<typename... Arg> [[nodiscard]] static VclPtr< reference_type > Create(Arg &&... arg) |
128 | { |
129 | return VclPtr< reference_type >( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE ); |
130 | } |
131 | |
132 | /** Probably most common used: handle->someBodyOp(). |
133 | */ |
134 | reference_type * operator->() const |
135 | { |
136 | return m_rInnerRef.get(); |
137 | } |
138 | |
139 | /** Get the body. Can be used instead of operator->(). |
140 | I.e. handle->someBodyOp() and handle.get()->someBodyOp() |
141 | are the same. |
142 | */ |
143 | reference_type * get() const |
144 | { |
145 | return m_rInnerRef.get(); |
146 | } |
147 | |
148 | void set(reference_type *pBody) |
149 | { |
150 | m_rInnerRef.set(pBody); |
151 | } |
152 | |
153 | void reset(reference_type *pBody) |
154 | { |
155 | m_rInnerRef.set(pBody); |
156 | } |
157 | |
158 | /** Up-casting copy assignment operator. |
159 | |
160 | Does not work for up-casts to ambiguous bases. |
161 | |
162 | @param rRef another reference |
163 | */ |
164 | template<typename derived_type> |
165 | typename std::enable_if< |
166 | std::is_base_of<reference_type, derived_type>::value, |
167 | VclPtr &>::type |
168 | operator =(VclPtr<derived_type> const & rRef) |
169 | { |
170 | m_rInnerRef.set(rRef.get()); |
171 | return *this; |
172 | } |
173 | |
174 | VclPtr & operator =(reference_type * pBody) |
175 | { |
176 | m_rInnerRef.set(pBody); |
177 | return *this; |
178 | } |
179 | |
180 | operator reference_type * () const |
181 | { |
182 | return m_rInnerRef.get(); |
183 | } |
184 | |
185 | explicit operator bool () const |
186 | { |
187 | return m_rInnerRef.get() != nullptr; |
188 | } |
189 | |
190 | void clear() |
191 | { |
192 | m_rInnerRef.clear(); |
193 | } |
194 | |
195 | void reset() |
196 | { |
197 | m_rInnerRef.clear(); |
198 | } |
199 | |
200 | void disposeAndClear() |
201 | { |
202 | // hold it alive for the lifetime of this method |
203 | ::rtl::Reference<reference_type> aTmp(m_rInnerRef); |
204 | m_rInnerRef.clear(); // we should use some 'swap' method ideally ;-) |
205 | if (aTmp.get()) { |
206 | aTmp->disposeOnce(); |
207 | } |
208 | } |
209 | |
210 | /** Needed to place VclPtr's into STL collection. |
211 | */ |
212 | bool operator< (const VclPtr<reference_type> & handle) const |
213 | { |
214 | return (m_rInnerRef < handle.m_rInnerRef); |
215 | } |
216 | }; // class VclPtr |
217 | |
218 | template<typename T1, typename T2> |
219 | inline bool operator ==(VclPtr<T1> const & p1, VclPtr<T2> const & p2) { |
220 | return p1.get() == p2.get(); |
221 | } |
222 | |
223 | template<typename T> inline bool operator ==(VclPtr<T> const & p1, T const * p2) |
224 | { |
225 | return p1.get() == p2; |
226 | } |
227 | |
228 | template<typename T> inline bool operator ==(VclPtr<T> const & p1, T * p2) { |
229 | return p1.get() == p2; |
230 | } |
231 | |
232 | template<typename T> inline bool operator ==(T const * p1, VclPtr<T> const & p2) |
233 | { |
234 | return p1 == p2.get(); |
235 | } |
236 | |
237 | template<typename T> inline bool operator ==(T * p1, VclPtr<T> const & p2) { |
238 | return p1 == p2.get(); |
239 | } |
240 | |
241 | template<typename T1, typename T2> |
242 | inline bool operator !=(VclPtr<T1> const & p1, VclPtr<T2> const & p2) { |
243 | return !(p1 == p2); |
244 | } |
245 | |
246 | template<typename T> inline bool operator !=(VclPtr<T> const & p1, T const * p2) |
247 | { |
248 | return !(p1 == p2); |
249 | } |
250 | |
251 | template<typename T> inline bool operator !=(VclPtr<T> const & p1, T * p2) { |
252 | return !(p1 == p2); |
253 | } |
254 | |
255 | template<typename T> inline bool operator !=(T const * p1, VclPtr<T> const & p2) |
256 | { |
257 | return !(p1 == p2); |
258 | } |
259 | |
260 | template<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 | */ |
274 | template <class reference_type> |
275 | class SAL_WARN_UNUSED__attribute__((warn_unused)) VclPtrInstance final : public VclPtr<reference_type> |
276 | { |
277 | public: |
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 | |
290 | template <class reference_type> |
291 | class ScopedVclPtr : public VclPtr<reference_type> |
292 | { |
293 | public: |
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 | |
378 | private: |
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 | |
387 | protected: |
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 |
406 | template <class reference_type> |
407 | class SAL_WARN_UNUSED__attribute__((warn_unused)) ScopedVclPtrInstance final : public ScopedVclPtr<reference_type> |
408 | { |
409 | public: |
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 | |
421 | private: |
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: */ |
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 | |||||||||
34 | namespace rtl | ||||||||
35 | { | ||||||||
36 | |||||||||
37 | /** Template reference class for reference type. | ||||||||
38 | */ | ||||||||
39 | template <class reference_type> | ||||||||
40 | class Reference | ||||||||
41 | { | ||||||||
42 | /** The <b>reference_type</b> body pointer. | ||||||||
43 | */ | ||||||||
44 | reference_type * m_pBody; | ||||||||
45 | |||||||||
46 | |||||||||
47 | public: | ||||||||
48 | /** Constructor... | ||||||||
49 | */ | ||||||||
50 | Reference() | ||||||||
51 | : m_pBody (NULL__null) | ||||||||
52 | {} | ||||||||
53 | |||||||||
54 | |||||||||
55 | /** Constructor... | ||||||||
56 | */ | ||||||||
57 | Reference (reference_type * pBody, __sal_NoAcquire) | ||||||||
58 | : m_pBody (pBody) | ||||||||
59 | { | ||||||||
60 | } | ||||||||
61 | |||||||||
62 | /** Constructor... | ||||||||
63 | */ | ||||||||
64 | Reference (reference_type * pBody) | ||||||||
65 | : m_pBody (pBody) | ||||||||
66 | { | ||||||||
67 | if (m_pBody) | ||||||||
68 | m_pBody->acquire(); | ||||||||
69 | } | ||||||||
70 | |||||||||
71 | /** Copy constructor... | ||||||||
72 | */ | ||||||||
73 | Reference (const Reference<reference_type> & handle) | ||||||||
74 | : m_pBody (handle.m_pBody) | ||||||||
75 | { | ||||||||
76 | if (m_pBody) | ||||||||
77 | m_pBody->acquire(); | ||||||||
78 | } | ||||||||
79 | |||||||||
80 | #ifdef LIBO_INTERNAL_ONLY1 | ||||||||
81 | /** Move constructor... | ||||||||
82 | */ | ||||||||
83 | Reference (Reference<reference_type> && handle) noexcept | ||||||||
84 | : m_pBody (handle.m_pBody) | ||||||||
85 | { | ||||||||
86 | handle.m_pBody = nullptr; | ||||||||
87 | } | ||||||||
88 | #endif | ||||||||
89 | |||||||||
90 | #if defined LIBO_INTERNAL_ONLY1 | ||||||||
91 | /** Up-casting conversion constructor: Copies interface reference. | ||||||||
92 | |||||||||
93 | Does not work for up-casts to ambiguous bases. | ||||||||
94 | |||||||||
95 | @param rRef another reference | ||||||||
96 | */ | ||||||||
97 | template< class derived_type > | ||||||||
98 | inline Reference( | ||||||||
99 | const Reference< derived_type > & rRef, | ||||||||
100 | std::enable_if_t<std::is_base_of_v<reference_type, derived_type>, int> = 0 ) | ||||||||
101 | : m_pBody (rRef.get()) | ||||||||
102 | { | ||||||||
103 | if (m_pBody) | ||||||||
104 | m_pBody->acquire(); | ||||||||
105 | } | ||||||||
106 | #endif | ||||||||
107 | |||||||||
108 | /** Destructor... | ||||||||
109 | */ | ||||||||
110 | ~Reference() COVERITY_NOEXCEPT_FALSE | ||||||||
111 | { | ||||||||
112 | if (m_pBody) | ||||||||
113 | m_pBody->release(); | ||||||||
114 | } | ||||||||
115 | |||||||||
116 | /** Set... | ||||||||
117 | Similar to assignment. | ||||||||
118 | */ | ||||||||
119 | Reference<reference_type> & | ||||||||
120 | SAL_CALL set (reference_type * pBody) | ||||||||
121 | { | ||||||||
122 | if (pBody) | ||||||||
123 | pBody->acquire(); | ||||||||
124 | reference_type * const pOld = m_pBody; | ||||||||
125 | m_pBody = pBody; | ||||||||
126 | if (pOld) | ||||||||
127 | pOld->release(); | ||||||||
128 | return *this; | ||||||||
129 | } | ||||||||
130 | |||||||||
131 | /** Assignment. | ||||||||
132 | Unbinds this instance from its body (if bound) and | ||||||||
133 | bind it to the body represented by the handle. | ||||||||
134 | */ | ||||||||
135 | Reference<reference_type> & | ||||||||
136 | SAL_CALL operator= (const Reference<reference_type> & handle) | ||||||||
137 | { | ||||||||
138 | return set( handle.m_pBody ); | ||||||||
139 | } | ||||||||
140 | |||||||||
141 | #ifdef LIBO_INTERNAL_ONLY1 | ||||||||
142 | /** Assignment. | ||||||||
143 | * Unbinds this instance from its body (if bound), | ||||||||
144 | * bind it to the body represented by the handle, and | ||||||||
145 | * set the body represented by the handle to nullptr. | ||||||||
146 | */ | ||||||||
147 | Reference<reference_type> & | ||||||||
148 | operator= (Reference<reference_type> && handle) | ||||||||
149 | { | ||||||||
150 | // self-movement guts ourself | ||||||||
151 | if (m_pBody) | ||||||||
152 | m_pBody->release(); | ||||||||
153 | m_pBody = handle.m_pBody; | ||||||||
154 | handle.m_pBody = nullptr; | ||||||||
155 | return *this; | ||||||||
156 | } | ||||||||
157 | #endif | ||||||||
158 | |||||||||
159 | /** Assignment... | ||||||||
160 | */ | ||||||||
161 | Reference<reference_type> & | ||||||||
162 | SAL_CALL operator= (reference_type * pBody) | ||||||||
163 | { | ||||||||
164 | return set( pBody ); | ||||||||
165 | } | ||||||||
166 | |||||||||
167 | /** Unbind the body from this handle. | ||||||||
168 | Note that for a handle representing a large body, | ||||||||
169 | "handle.clear().set(new body());" _might_ | ||||||||
170 | perform a little bit better than "handle.set(new body());", | ||||||||
171 | since in the second case two large objects exist in memory | ||||||||
172 | (the old body and the new body). | ||||||||
173 | */ | ||||||||
174 | Reference<reference_type> & SAL_CALL clear() | ||||||||
175 | { | ||||||||
176 | if (m_pBody
| ||||||||
177 | { | ||||||||
178 | reference_type * const pOld = m_pBody; | ||||||||
179 | m_pBody = NULL__null; | ||||||||
180 | pOld->release(); | ||||||||
181 | } | ||||||||
182 | return *this; | ||||||||
183 | } | ||||||||
184 | |||||||||
185 | |||||||||
186 | /** Get the body. Can be used instead of operator->(). | ||||||||
187 | I.e. handle->someBodyOp() and handle.get()->someBodyOp() | ||||||||
188 | are the same. | ||||||||
189 | */ | ||||||||
190 | reference_type * SAL_CALL get() const | ||||||||
191 | { | ||||||||
192 | return m_pBody; | ||||||||
| |||||||||
193 | } | ||||||||
194 | |||||||||
195 | |||||||||
196 | /** Probably most common used: handle->someBodyOp(). | ||||||||
197 | */ | ||||||||
198 | reference_type * SAL_CALL operator->() const | ||||||||
199 | { | ||||||||
200 | assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail ("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx" , 200, __extension__ __PRETTY_FUNCTION__)); | ||||||||
201 | return m_pBody; | ||||||||
202 | } | ||||||||
203 | |||||||||
204 | |||||||||
205 | /** Allows (*handle).someBodyOp(). | ||||||||
206 | */ | ||||||||
207 | reference_type & SAL_CALL operator*() const | ||||||||
208 | { | ||||||||
209 | assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail ("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx" , 209, __extension__ __PRETTY_FUNCTION__)); | ||||||||
210 | return *m_pBody; | ||||||||
211 | } | ||||||||
212 | |||||||||
213 | |||||||||
214 | /** Returns True if the handle does point to a valid body. | ||||||||
215 | */ | ||||||||
216 | bool SAL_CALL is() const | ||||||||
217 | { | ||||||||
218 | return (m_pBody != NULL__null); | ||||||||
219 | } | ||||||||
220 | |||||||||
221 | #if defined LIBO_INTERNAL_ONLY1 | ||||||||
222 | /** Returns True if the handle does point to a valid body. | ||||||||
223 | */ | ||||||||
224 | explicit operator bool() const | ||||||||
225 | { | ||||||||
226 | return is(); | ||||||||
227 | } | ||||||||
228 | #endif | ||||||||
229 | |||||||||
230 | /** Returns True if this points to pBody. | ||||||||
231 | */ | ||||||||
232 | bool SAL_CALL operator== (const reference_type * pBody) const | ||||||||
233 | { | ||||||||
234 | return (m_pBody == pBody); | ||||||||
235 | } | ||||||||
236 | |||||||||
237 | |||||||||
238 | /** Returns True if handle points to the same body. | ||||||||
239 | */ | ||||||||
240 | bool | ||||||||
241 | SAL_CALL operator== (const Reference<reference_type> & handle) const | ||||||||
242 | { | ||||||||
243 | return (m_pBody == handle.m_pBody); | ||||||||
244 | } | ||||||||
245 | |||||||||
246 | |||||||||
247 | /** Needed to place References into STL collection. | ||||||||
248 | */ | ||||||||
249 | bool | ||||||||
250 | SAL_CALL operator!= (const Reference<reference_type> & handle) const | ||||||||
251 | { | ||||||||
252 | return (m_pBody != handle.m_pBody); | ||||||||
253 | } | ||||||||
254 | |||||||||
255 | |||||||||
256 | /** Needed to place References into STL collection. | ||||||||
257 | */ | ||||||||
258 | bool | ||||||||
259 | SAL_CALL operator< (const Reference<reference_type> & handle) const | ||||||||
260 | { | ||||||||
261 | return (m_pBody < handle.m_pBody); | ||||||||
262 | } | ||||||||
263 | |||||||||
264 | |||||||||
265 | /** Needed to place References into STL collection. | ||||||||
266 | */ | ||||||||
267 | bool | ||||||||
268 | SAL_CALL operator> (const Reference<reference_type> & handle) const | ||||||||
269 | { | ||||||||
270 | return (m_pBody > handle.m_pBody); | ||||||||
271 | } | ||||||||
272 | }; | ||||||||
273 | |||||||||
274 | } // namespace rtl | ||||||||
275 | |||||||||
276 | #if defined LIBO_INTERNAL_ONLY1 | ||||||||
277 | namespace 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 | */ | ||||||||
286 | template<typename T> | ||||||||
287 | struct 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: */ |
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 | |
25 | class VCL_DLLPUBLIC__attribute__ ((visibility("default"))) VclReferenceBase |
26 | { |
27 | mutable oslInterlockedCount mnRefCnt; |
28 | |
29 | template<typename T> friend class VclPtr; |
30 | |
31 | public: |
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) |
40 | delete this; |
41 | } |
42 | #ifdef DBG_UTIL |
43 | #ifndef _WIN32 |
44 | sal_Int32 getRefCount() const { return mnRefCnt; } |
45 | #endif |
46 | #endif |
47 | |
48 | |
49 | private: |
50 | VclReferenceBase(const VclReferenceBase&) = delete; |
51 | VclReferenceBase& operator=(const VclReferenceBase&) = delete; |
52 | |
53 | bool mbDisposed : 1; |
54 | |
55 | protected: |
56 | VclReferenceBase(); |
57 | protected: |
58 | virtual ~VclReferenceBase(); |
59 | |
60 | protected: |
61 | virtual void dispose(); |
62 | |
63 | public: |
64 | void disposeOnce(); |
65 | bool isDisposed() const { return mbDisposed; } |
66 | |
67 | }; |
68 | #endif |