File: | home/maarten/src/libreoffice/core/include/rtl/ref.hxx |
Warning: | line 113, column 13 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 <com/sun/star/awt/DeviceCapability.hpp> | |||
21 | ||||
22 | #include <com/sun/star/util/MeasureUnit.hpp> | |||
23 | #include <com/sun/star/lang/IllegalArgumentException.hpp> | |||
24 | ||||
25 | #include <toolkit/awt/vclxdevice.hxx> | |||
26 | #include <toolkit/awt/vclxfont.hxx> | |||
27 | #include <awt/vclxbitmap.hxx> | |||
28 | #include <toolkit/helper/vclunohelper.hxx> | |||
29 | #include <toolkit/helper/macros.hxx> | |||
30 | #include <cppuhelper/queryinterface.hxx> | |||
31 | ||||
32 | #include <vcl/svapp.hxx> | |||
33 | #include <vcl/outdev.hxx> | |||
34 | #include <vcl/window.hxx> | |||
35 | #include <vcl/print.hxx> | |||
36 | #include <vcl/virdev.hxx> | |||
37 | #include <vcl/bitmapex.hxx> | |||
38 | #include <vcl/metric.hxx> | |||
39 | ||||
40 | ||||
41 | VCLXDevice::VCLXDevice() | |||
42 | { | |||
43 | } | |||
44 | ||||
45 | VCLXDevice::~VCLXDevice() | |||
46 | { | |||
47 | //TODO: why was this empty, and everything done in ~VCLXVirtualDevice? | |||
48 | SolarMutexGuard g; | |||
49 | mpOutputDevice.reset(); | |||
50 | } | |||
51 | ||||
52 | // css::lang::XUnoTunnel | |||
53 | UNO3_GETIMPLEMENTATION_IMPL( VCLXDevice )namespace { class theVCLXDeviceUnoTunnelId : public rtl::Static < UnoTunnelIdInit, theVCLXDeviceUnoTunnelId> {}; } const css::uno::Sequence< sal_Int8 > & VCLXDevice::getUnoTunnelId () throw() { return theVCLXDeviceUnoTunnelId::get().getSeq(); }sal_Int64 VCLXDevice::getSomething( const css::uno::Sequence < sal_Int8 >& rId ) { if( isUnoTunnelId<VCLXDevice >(rId) ) { return sal::static_int_cast<sal_Int64>(reinterpret_cast <sal_IntPtr>(this)); } return 0; }; | |||
54 | ||||
55 | // css::awt::XDevice, | |||
56 | css::uno::Reference< css::awt::XGraphics > VCLXDevice::createGraphics( ) | |||
57 | { | |||
58 | SolarMutexGuard aGuard; | |||
59 | ||||
60 | css::uno::Reference< css::awt::XGraphics > xRef; | |||
61 | ||||
62 | if ( mpOutputDevice ) | |||
63 | xRef = mpOutputDevice->CreateUnoGraphics(); | |||
64 | ||||
65 | return xRef; | |||
66 | } | |||
67 | ||||
68 | css::uno::Reference< css::awt::XDevice > VCLXDevice::createDevice( sal_Int32 nWidth, sal_Int32 nHeight ) | |||
69 | { | |||
70 | SolarMutexGuard aGuard; | |||
71 | ||||
72 | css::uno::Reference< css::awt::XDevice > xRef; | |||
73 | if ( GetOutputDevice() ) | |||
| ||||
74 | { | |||
75 | VCLXVirtualDevice* pVDev = new VCLXVirtualDevice; | |||
76 | VclPtrInstance<VirtualDevice> pVclVDev( *GetOutputDevice() ); | |||
77 | pVclVDev->SetOutputSizePixel( Size( nWidth, nHeight ) ); | |||
78 | pVDev->SetVirtualDevice( pVclVDev ); | |||
79 | xRef = pVDev; | |||
80 | } | |||
81 | return xRef; | |||
82 | } | |||
83 | ||||
84 | css::awt::DeviceInfo VCLXDevice::getInfo() | |||
85 | { | |||
86 | SolarMutexGuard aGuard; | |||
87 | ||||
88 | css::awt::DeviceInfo aInfo; | |||
89 | ||||
90 | if( mpOutputDevice ) | |||
91 | { | |||
92 | Size aDevSz; | |||
93 | OutDevType eDevType = mpOutputDevice->GetOutDevType(); | |||
94 | if ( eDevType == OUTDEV_WINDOW ) | |||
95 | { | |||
96 | aDevSz = static_cast<vcl::Window*>(mpOutputDevice.get())->GetSizePixel(); | |||
97 | static_cast<vcl::Window*>(mpOutputDevice.get())->GetBorder( aInfo.LeftInset, aInfo.TopInset, aInfo.RightInset, aInfo.BottomInset ); | |||
98 | } | |||
99 | else if ( eDevType == OUTDEV_PRINTER ) | |||
100 | { | |||
101 | aDevSz = static_cast<Printer*>(mpOutputDevice.get())->GetPaperSizePixel(); | |||
102 | Size aOutSz = mpOutputDevice->GetOutputSizePixel(); | |||
103 | Point aOffset = static_cast<Printer*>(mpOutputDevice.get())->GetPageOffset(); | |||
104 | aInfo.LeftInset = aOffset.X(); | |||
105 | aInfo.TopInset = aOffset.Y(); | |||
106 | aInfo.RightInset = aDevSz.Width() - aOutSz.Width() - aOffset.X(); | |||
107 | aInfo.BottomInset = aDevSz.Height() - aOutSz.Height() - aOffset.Y(); | |||
108 | } | |||
109 | else // VirtualDevice | |||
110 | { | |||
111 | aDevSz = mpOutputDevice->GetOutputSizePixel(); | |||
112 | aInfo.LeftInset = 0; | |||
113 | aInfo.TopInset = 0; | |||
114 | aInfo.RightInset = 0; | |||
115 | aInfo.BottomInset = 0; | |||
116 | } | |||
117 | ||||
118 | aInfo.Width = aDevSz.Width(); | |||
119 | aInfo.Height = aDevSz.Height(); | |||
120 | ||||
121 | Size aTmpSz = mpOutputDevice->LogicToPixel( Size( 1000, 1000 ), MapMode( MapUnit::MapCM ) ); | |||
122 | aInfo.PixelPerMeterX = aTmpSz.Width()/10; | |||
123 | aInfo.PixelPerMeterY = aTmpSz.Height()/10; | |||
124 | ||||
125 | aInfo.BitsPerPixel = mpOutputDevice->GetBitCount(); | |||
126 | ||||
127 | aInfo.Capabilities = 0; | |||
128 | if ( mpOutputDevice->GetOutDevType() != OUTDEV_PRINTER ) | |||
129 | aInfo.Capabilities = css::awt::DeviceCapability::RASTEROPERATIONS|css::awt::DeviceCapability::GETBITS; | |||
130 | } | |||
131 | ||||
132 | return aInfo; | |||
133 | } | |||
134 | ||||
135 | css::uno::Sequence< css::awt::FontDescriptor > VCLXDevice::getFontDescriptors( ) | |||
136 | { | |||
137 | SolarMutexGuard aGuard; | |||
138 | ||||
139 | css::uno::Sequence< css::awt::FontDescriptor> aFonts; | |||
140 | if( mpOutputDevice ) | |||
141 | { | |||
142 | int nFonts = mpOutputDevice->GetDevFontCount(); | |||
143 | if ( nFonts ) | |||
144 | { | |||
145 | aFonts = css::uno::Sequence< css::awt::FontDescriptor>( nFonts ); | |||
146 | css::awt::FontDescriptor* pFonts = aFonts.getArray(); | |||
147 | for ( int n = 0; n < nFonts; n++ ) | |||
148 | pFonts[n] = VCLUnoHelper::CreateFontDescriptor( mpOutputDevice->GetDevFont( n ) ); | |||
149 | } | |||
150 | } | |||
151 | return aFonts; | |||
152 | } | |||
153 | ||||
154 | css::uno::Reference< css::awt::XFont > VCLXDevice::getFont( const css::awt::FontDescriptor& rDescriptor ) | |||
155 | { | |||
156 | SolarMutexGuard aGuard; | |||
157 | ||||
158 | css::uno::Reference< css::awt::XFont > xRef; | |||
159 | if( mpOutputDevice ) | |||
160 | { | |||
161 | VCLXFont* pMetric = new VCLXFont; | |||
162 | pMetric->Init( *this, VCLUnoHelper::CreateFont( rDescriptor, mpOutputDevice->GetFont() ) ); | |||
163 | xRef = pMetric; | |||
164 | } | |||
165 | return xRef; | |||
166 | } | |||
167 | ||||
168 | css::uno::Reference< css::awt::XBitmap > VCLXDevice::createBitmap( sal_Int32 nX, sal_Int32 nY, sal_Int32 nWidth, sal_Int32 nHeight ) | |||
169 | { | |||
170 | SolarMutexGuard aGuard; | |||
171 | ||||
172 | css::uno::Reference< css::awt::XBitmap > xBmp; | |||
173 | if( mpOutputDevice ) | |||
174 | { | |||
175 | BitmapEx aBmp = mpOutputDevice->GetBitmapEx( Point( nX, nY ), Size( nWidth, nHeight ) ); | |||
176 | ||||
177 | VCLXBitmap* pBmp = new VCLXBitmap; | |||
178 | pBmp->SetBitmap( aBmp ); | |||
179 | xBmp = pBmp; | |||
180 | } | |||
181 | return xBmp; | |||
182 | } | |||
183 | ||||
184 | css::uno::Reference< css::awt::XDisplayBitmap > VCLXDevice::createDisplayBitmap( const css::uno::Reference< css::awt::XBitmap >& rxBitmap ) | |||
185 | { | |||
186 | SolarMutexGuard aGuard; | |||
187 | ||||
188 | BitmapEx aBmp = VCLUnoHelper::GetBitmap( rxBitmap ); | |||
189 | VCLXBitmap* pBmp = new VCLXBitmap; | |||
190 | pBmp->SetBitmap( aBmp ); | |||
191 | css::uno::Reference< css::awt::XDisplayBitmap > xDBmp = pBmp; | |||
192 | return xDBmp; | |||
193 | } | |||
194 | ||||
195 | VCLXVirtualDevice::~VCLXVirtualDevice() | |||
196 | { | |||
197 | SolarMutexGuard aGuard; | |||
198 | ||||
199 | mpOutputDevice.disposeAndClear(); | |||
200 | } | |||
201 | ||||
202 | // Interface implementation of css::awt::XUnitConversion | |||
203 | ||||
204 | css::awt::Point SAL_CALL VCLXDevice::convertPointToLogic( const css::awt::Point& aPoint, ::sal_Int16 TargetUnit ) | |||
205 | { | |||
206 | SolarMutexGuard aGuard; | |||
207 | if (TargetUnit == css::util::MeasureUnit::PERCENT ) | |||
208 | { | |||
209 | // percentage not allowed here | |||
210 | throw css::lang::IllegalArgumentException(); | |||
211 | } | |||
212 | ||||
213 | css::awt::Point aAWTPoint(0,0); | |||
214 | // X,Y | |||
215 | ||||
216 | if( mpOutputDevice ) | |||
217 | { | |||
218 | MapMode aMode(VCLUnoHelper::ConvertToMapModeUnit(TargetUnit)); | |||
219 | ::Point aVCLPoint = VCLUnoHelper::ConvertToVCLPoint(aPoint); | |||
220 | ::Point aDevPoint = mpOutputDevice->PixelToLogic(aVCLPoint, aMode ); | |||
221 | aAWTPoint = VCLUnoHelper::ConvertToAWTPoint(aDevPoint); | |||
222 | } | |||
223 | ||||
224 | return aAWTPoint; | |||
225 | } | |||
226 | ||||
227 | ||||
228 | css::awt::Point SAL_CALL VCLXDevice::convertPointToPixel( const css::awt::Point& aPoint, ::sal_Int16 SourceUnit ) | |||
229 | { | |||
230 | SolarMutexGuard aGuard; | |||
231 | if (SourceUnit == css::util::MeasureUnit::PERCENT || | |||
232 | SourceUnit == css::util::MeasureUnit::PIXEL ) | |||
233 | { | |||
234 | // pixel or percentage not allowed here | |||
235 | throw css::lang::IllegalArgumentException(); | |||
236 | } | |||
237 | ||||
238 | css::awt::Point aAWTPoint(0,0); | |||
239 | ||||
240 | if( mpOutputDevice ) | |||
241 | { | |||
242 | MapMode aMode(VCLUnoHelper::ConvertToMapModeUnit(SourceUnit)); | |||
243 | ::Point aVCLPoint = VCLUnoHelper::ConvertToVCLPoint(aPoint); | |||
244 | ::Point aDevPoint = mpOutputDevice->LogicToPixel(aVCLPoint, aMode ); | |||
245 | aAWTPoint = VCLUnoHelper::ConvertToAWTPoint(aDevPoint); | |||
246 | } | |||
247 | ||||
248 | return aAWTPoint; | |||
249 | } | |||
250 | ||||
251 | css::awt::Size SAL_CALL VCLXDevice::convertSizeToLogic( const css::awt::Size& aSize, ::sal_Int16 TargetUnit ) | |||
252 | { | |||
253 | SolarMutexGuard aGuard; | |||
254 | if (TargetUnit == css::util::MeasureUnit::PERCENT) | |||
255 | { | |||
256 | // percentage not allowed here | |||
257 | throw css::lang::IllegalArgumentException(); | |||
258 | } | |||
259 | ||||
260 | css::awt::Size aAWTSize(0,0); | |||
261 | // Width, Height | |||
262 | ||||
263 | ||||
264 | if( mpOutputDevice ) | |||
265 | { | |||
266 | MapMode aMode(VCLUnoHelper::ConvertToMapModeUnit(TargetUnit)); | |||
267 | ::Size aVCLSize = VCLUnoHelper::ConvertToVCLSize(aSize); | |||
268 | ::Size aDevSz = mpOutputDevice->PixelToLogic(aVCLSize, aMode ); | |||
269 | aAWTSize = VCLUnoHelper::ConvertToAWTSize(aDevSz); | |||
270 | } | |||
271 | ||||
272 | return aAWTSize; | |||
273 | } | |||
274 | ||||
275 | css::awt::Size SAL_CALL VCLXDevice::convertSizeToPixel( const css::awt::Size& aSize, ::sal_Int16 SourceUnit ) | |||
276 | { | |||
277 | SolarMutexGuard aGuard; | |||
278 | if (SourceUnit == css::util::MeasureUnit::PERCENT || | |||
279 | SourceUnit == css::util::MeasureUnit::PIXEL) | |||
280 | { | |||
281 | // pixel or percentage not allowed here | |||
282 | throw css::lang::IllegalArgumentException(); | |||
283 | } | |||
284 | ||||
285 | css::awt::Size aAWTSize(0,0); | |||
286 | // Width, Height | |||
287 | if( mpOutputDevice ) | |||
288 | { | |||
289 | MapMode aMode(VCLUnoHelper::ConvertToMapModeUnit(SourceUnit)); | |||
290 | ::Size aVCLSize = VCLUnoHelper::ConvertToVCLSize(aSize); | |||
291 | ::Size aDevSz = mpOutputDevice->LogicToPixel(aVCLSize, aMode ); | |||
292 | aAWTSize = VCLUnoHelper::ConvertToAWTSize(aDevSz); | |||
293 | } | |||
294 | ||||
295 | return aAWTSize; | |||
296 | } | |||
297 | ||||
298 | /* 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_TOOLKIT_AWT_VCLXDEVICE_HXX |
21 | #define INCLUDED_TOOLKIT_AWT_VCLXDEVICE_HXX |
22 | |
23 | #include <toolkit/dllapi.h> |
24 | #include <com/sun/star/awt/XDevice.hpp> |
25 | #include <com/sun/star/lang/XUnoTunnel.hpp> |
26 | #include <comphelper/servicehelper.hxx> |
27 | #include <cppuhelper/implbase.hxx> |
28 | #include <vcl/virdev.hxx> |
29 | #include <vcl/vclptr.hxx> |
30 | |
31 | #include <com/sun/star/awt/XUnitConversion.hpp> |
32 | |
33 | /// A UNO wrapper for the VCL OutputDevice |
34 | class TOOLKIT_DLLPUBLIC__attribute__ ((visibility("default"))) VCLXDevice : |
35 | public cppu::WeakImplHelper< |
36 | css::awt::XDevice, |
37 | css::lang::XUnoTunnel, |
38 | css::awt::XUnitConversion> |
39 | { |
40 | friend class VCLXGraphics; |
41 | friend class VCLXVirtualDevice; |
42 | |
43 | private: |
44 | VclPtr<OutputDevice> mpOutputDevice; |
45 | |
46 | public: |
47 | VCLXDevice(); |
48 | virtual ~VCLXDevice() override; |
49 | |
50 | void SetOutputDevice( const VclPtr<OutputDevice> &pOutDev ) { mpOutputDevice = pOutDev; } |
51 | const VclPtr<OutputDevice>& GetOutputDevice() const { return mpOutputDevice; } |
52 | |
53 | // css::lang::XUnoTunnel |
54 | UNO3_GETIMPLEMENTATION_DECL(VCLXDevice)static const css::uno::Sequence< sal_Int8 > & getUnoTunnelId () throw(); virtual sal_Int64 getSomething( const css::uno::Sequence < sal_Int8 >& aIdentifier ) override; |
55 | |
56 | // css::awt::XDevice, |
57 | css::uno::Reference< css::awt::XGraphics > SAL_CALL createGraphics( ) override; |
58 | css::uno::Reference< css::awt::XDevice > SAL_CALL createDevice( sal_Int32 nWidth, sal_Int32 nHeight ) override; |
59 | css::awt::DeviceInfo SAL_CALL getInfo() override; |
60 | css::uno::Sequence< css::awt::FontDescriptor > SAL_CALL getFontDescriptors( ) override; |
61 | css::uno::Reference< css::awt::XFont > SAL_CALL getFont( const css::awt::FontDescriptor& aDescriptor ) override; |
62 | css::uno::Reference< css::awt::XBitmap > SAL_CALL createBitmap( sal_Int32 nX, sal_Int32 nY, sal_Int32 nWidth, sal_Int32 nHeight ) override; |
63 | css::uno::Reference< css::awt::XDisplayBitmap > SAL_CALL createDisplayBitmap( const css::uno::Reference< css::awt::XBitmap >& Bitmap ) override; |
64 | |
65 | // css::awt::XUnitConversion |
66 | css::awt::Point SAL_CALL convertPointToLogic( const css::awt::Point& aPoint, ::sal_Int16 TargetUnit ) override; |
67 | css::awt::Point SAL_CALL convertPointToPixel( const css::awt::Point& aPoint, ::sal_Int16 SourceUnit ) override; |
68 | css::awt::Size SAL_CALL convertSizeToLogic( const css::awt::Size& aSize, ::sal_Int16 TargetUnit ) override; |
69 | css::awt::Size SAL_CALL convertSizeToPixel( const css::awt::Size& aSize, ::sal_Int16 SourceUnit ) override; |
70 | |
71 | |
72 | }; |
73 | |
74 | |
75 | |
76 | |
77 | class VCLXVirtualDevice : public VCLXDevice |
78 | { |
79 | public: |
80 | virtual ~VCLXVirtualDevice() override; |
81 | |
82 | void SetVirtualDevice( VirtualDevice* pVDev ) { SetOutputDevice( pVDev ); } |
83 | }; |
84 | |
85 | |
86 | #endif // INCLUDED_TOOLKIT_AWT_VCLXDEVICE_HXX |
87 | |
88 | /* 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 |