Bug Summary

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

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name tbunocontroller.cxx -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -mframe-pointer=all -fmath-errno -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/lib64/clang/11.0.0 -D BOOST_ERROR_CODE_HEADER_ONLY -D BOOST_SYSTEM_NO_DEPRECATED -D CPPU_ENV=gcc3 -D LINUX -D OSL_DEBUG_LEVEL=1 -D SAL_LOG_INFO -D SAL_LOG_WARN -D UNIX -D UNX -D X86_64 -D _PTHREADS -D _REENTRANT -D SVX_DLLIMPLEMENTATION -D EXCEPTIONS_ON -D LIBO_INTERNAL_ONLY -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/icu/source -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/icu/source/i18n -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/icu/source/common -I /home/maarten/src/libreoffice/core/external/boost/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/boost -I /home/maarten/src/libreoffice/core/svx/inc -I /home/maarten/src/libreoffice/core/svx/source/inc -I /home/maarten/src/libreoffice/core/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include/linux -I /home/maarten/src/libreoffice/core/config_host -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/udkapi/normal -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/offapi/normal -I /home/maarten/src/libreoffice/core/workdir/CustomTarget/officecfg/registry -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10 -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/x86_64-redhat-linux -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/backward -internal-isystem /usr/local/include -internal-isystem /usr/lib64/clang/11.0.0/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O0 -Wno-missing-braces -std=c++17 -fdeprecated-macro -fdebug-compilation-dir /home/maarten/src/libreoffice/core -ferror-limit 19 -fvisibility hidden -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -debug-info-kind=constructor -analyzer-output=html -faddrsig -o /home/maarten/tmp/wis/scan-build-libreoffice/output/report/2020-10-07-141433-9725-1 -x c++ /home/maarten/src/libreoffice/core/svx/source/tbxctrls/tbunocontroller.cxx

/home/maarten/src/libreoffice/core/svx/source/tbxctrls/tbunocontroller.cxx

→
1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#include <com/sun/star/awt/FontDescriptor.hpp>
21#include <com/sun/star/frame/XFrame.hpp>
22#include <com/sun/star/frame/status/FontHeight.hpp>
23#include <com/sun/star/frame/XDispatchProvider.hpp>
24#include <com/sun/star/beans/PropertyValue.hpp>
25#include <com/sun/star/lang/XServiceInfo.hpp>
26#include <com/sun/star/util/XURLTransformer.hpp>
27
28#include <vcl/event.hxx>
29#include <vcl/svapp.hxx>
30#include <vcl/weldutils.hxx>
31#include <vcl/window.hxx>
32#include <vcl/settings.hxx>
33#include <toolkit/helper/vclunohelper.hxx>
34#include <svtools/ctrltool.hxx>
35#include <svtools/ctrlbox.hxx>
36#include <svtools/toolboxcontroller.hxx>
37#include <tools/json_writer.hxx>
38#include <cppuhelper/queryinterface.hxx>
39#include <cppuhelper/supportsservice.hxx>
40
41#include <memory>
42
43#include <vcl/InterimItemWindow.hxx>
44#include <sfx2/sidebar/SidebarToolBox.hxx>
45
46using namespace ::com::sun::star;
47
48namespace {
49
50class SvxFontSizeBox_Base;
51class SvxFontSizeBox_Impl;
52
53class FontHeightToolBoxControl : public svt::ToolboxController,
54 public lang::XServiceInfo
55{
56 public:
57 explicit FontHeightToolBoxControl(
58 const css::uno::Reference< css::uno::XComponentContext >& rServiceManager );
59
60 // XInterface
61 virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type& aType ) override;
62 virtual void SAL_CALL acquire() throw () override;
63 virtual void SAL_CALL release() throw () override;
64
65 // XServiceInfo
66 virtual OUString SAL_CALL getImplementationName() override;
67 virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
68 virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
69
70 // XComponent
71 virtual void SAL_CALL dispose() override;
72
73 // XStatusListener
74 virtual void SAL_CALL statusChanged( const css::frame::FeatureStateEvent& Event ) override;
75
76 // XToolbarController
77 virtual void SAL_CALL execute( sal_Int16 KeyModifier ) override;
78 virtual void SAL_CALL click() override;
79 virtual void SAL_CALL doubleClick() override;
80 virtual css::uno::Reference< css::awt::XWindow > SAL_CALL createPopupWindow() override;
81 virtual css::uno::Reference< css::awt::XWindow > SAL_CALL createItemWindow( const css::uno::Reference< css::awt::XWindow >& Parent ) override;
82
83 void dispatchCommand( const css::uno::Sequence< css::beans::PropertyValue >& rArgs );
84 using svt::ToolboxController::dispatchCommand;
85
86 private:
87 VclPtr<SvxFontSizeBox_Impl> m_xVclBox;
88 std::unique_ptr<SvxFontSizeBox_Base> m_xWeldBox;
89 SvxFontSizeBox_Base* m_pBox;
90 css::awt::FontDescriptor m_aCurrentFont;
91};
92
93class SvxFontSizeBox_Base
94{
95public:
96 SvxFontSizeBox_Base(std::unique_ptr<weld::ComboBox> xWidget,
97 const uno::Reference< frame::XFrame >& _xFrame,
98 FontHeightToolBoxControl& rCtrl);
99
100 virtual ~SvxFontSizeBox_Base()
101 {
102 }
103
104 virtual void set_sensitive(bool bSensitive)
105 {
106 m_xWidget->set_sensitive(bSensitive);
107 }
108
109 void statusChanged_Impl(long nHeight, bool bErase);
110 void UpdateFont(const css::awt::FontDescriptor& rCurrentFont);
111
112protected:
113 FontHeightToolBoxControl& m_rCtrl;
114 OUString m_aCurText;
115 bool m_bRelease;
116 uno::Reference<frame::XFrame> m_xFrame;
117 std::unique_ptr<FontSizeBox> m_xWidget;
118
119 void ReleaseFocus_Impl();
120 void Select();
121
122 virtual bool DoKeyInput(const KeyEvent& rKEvt);
123
124 DECL_LINK(SelectHdl, weld::ComboBox&, void)static void LinkStubSelectHdl(void *, weld::ComboBox&); void
SelectHdl(weld::ComboBox&);
125 DECL_LINK(KeyInputHdl, const KeyEvent&, bool)static bool LinkStubKeyInputHdl(void *, const KeyEvent&);
bool KeyInputHdl(const KeyEvent&);
126 DECL_LINK(ActivateHdl, weld::ComboBox&, bool)static bool LinkStubActivateHdl(void *, weld::ComboBox&);
bool ActivateHdl(weld::ComboBox&);
127 DECL_LINK(FocusOutHdl, weld::Widget&, void)static void LinkStubFocusOutHdl(void *, weld::Widget&); void
FocusOutHdl(weld::Widget&);
128 DECL_LINK(DumpAsPropertyTreeHdl, tools::JsonWriter&, void)static void LinkStubDumpAsPropertyTreeHdl(void *, tools::JsonWriter
&); void DumpAsPropertyTreeHdl(tools::JsonWriter&);
129};
130
131class SvxFontSizeBox_Impl final : public InterimItemWindow
132 , public SvxFontSizeBox_Base
133{
134public:
135 SvxFontSizeBox_Impl(vcl::Window* pParent,
136 const uno::Reference< frame::XFrame >& _xFrame,
137 FontHeightToolBoxControl& rCtrl);
138
139 virtual void dispose() override
140 {
141 m_xWidget.reset();
142 InterimItemWindow::dispose();
143 }
144
145 virtual void GetFocus() override
146 {
147 if (m_xWidget)
148 m_xWidget->grab_focus();
149 InterimItemWindow::GetFocus();
150 }
151
152 virtual ~SvxFontSizeBox_Impl() override
153 {
154 disposeOnce();
155 }
156
157 void SetOptimalSize();
158
159 virtual void DataChanged(const DataChangedEvent& rDCEvt) override;
160
161 virtual void set_sensitive(bool bSensitive) override
162 {
163 m_xWidget->set_sensitive(bSensitive);
164 if (bSensitive)
165 InterimItemWindow::Enable();
166 else
167 InterimItemWindow::Disable();
168 }
169
170private:
171 virtual bool DoKeyInput(const KeyEvent& rKEvt) override;
172};
173
174SvxFontSizeBox_Base::SvxFontSizeBox_Base(std::unique_ptr<weld::ComboBox> xWidget,
175 const uno::Reference<frame::XFrame>& rFrame,
176 FontHeightToolBoxControl& rCtrl)
177 : m_rCtrl(rCtrl)
178 , m_bRelease(true)
179 , m_xFrame(rFrame)
180 , m_xWidget(new FontSizeBox(std::move(xWidget)))
181{
182 m_xWidget->set_value(0);
183 m_xWidget->set_active_or_entry_text("");
184 m_xWidget->disable_entry_completion();
185
186 m_xWidget->connect_changed(LINK(this, SvxFontSizeBox_Base, SelectHdl)::tools::detail::makeLink( ::tools::detail::castTo<SvxFontSizeBox_Base
*>(this), &SvxFontSizeBox_Base::LinkStubSelectHdl));
187 m_xWidget->connect_key_press(LINK(this, SvxFontSizeBox_Base, KeyInputHdl)::tools::detail::makeLink( ::tools::detail::castTo<SvxFontSizeBox_Base
*>(this), &SvxFontSizeBox_Base::LinkStubKeyInputHdl));
188 m_xWidget->connect_entry_activate(LINK(this, SvxFontSizeBox_Base, ActivateHdl)::tools::detail::makeLink( ::tools::detail::castTo<SvxFontSizeBox_Base
*>(this), &SvxFontSizeBox_Base::LinkStubActivateHdl));
189 m_xWidget->connect_focus_out(LINK(this, SvxFontSizeBox_Base, FocusOutHdl)::tools::detail::makeLink( ::tools::detail::castTo<SvxFontSizeBox_Base
*>(this), &SvxFontSizeBox_Base::LinkStubFocusOutHdl));
190 m_xWidget->connect_get_property_tree(LINK(this, SvxFontSizeBox_Base, DumpAsPropertyTreeHdl)::tools::detail::makeLink( ::tools::detail::castTo<SvxFontSizeBox_Base
*>(this), &SvxFontSizeBox_Base::LinkStubDumpAsPropertyTreeHdl
));
191}
192
193void SvxFontSizeBox_Base::ReleaseFocus_Impl()
194{
195 if ( !m_bRelease )
196 {
197 m_bRelease = true;
198 return;
199 }
200
201 if ( m_xFrame.is() && m_xFrame->getContainerWindow().is() )
202 m_xFrame->getContainerWindow()->setFocus();
203}
204
205IMPL_LINK(SvxFontSizeBox_Base, SelectHdl, weld::ComboBox&, rCombo, void)void SvxFontSizeBox_Base::LinkStubSelectHdl(void * instance, weld
::ComboBox& data) { return static_cast<SvxFontSizeBox_Base
*>(instance)->SelectHdl(data); } void SvxFontSizeBox_Base
::SelectHdl(weld::ComboBox& rCombo)
206{
207 if (rCombo.changed_by_direct_pick()) // only when picked from the list
208 Select();
209}
210
211IMPL_LINK_NOARG(SvxFontSizeBox_Base, ActivateHdl, weld::ComboBox&, bool)bool SvxFontSizeBox_Base::LinkStubActivateHdl(void * instance
, weld::ComboBox& data) { return static_cast<SvxFontSizeBox_Base
*>(instance)->ActivateHdl(data); } bool SvxFontSizeBox_Base
::ActivateHdl(__attribute__ ((unused)) weld::ComboBox&)
212{
213 Select();
214 return true;
215}
216
217void SvxFontSizeBox_Base::Select()
218{
219 sal_Int64 nSelVal = m_xWidget->get_value();
220 float fSelVal = float( nSelVal ) / 10;
221
222 uno::Sequence< beans::PropertyValue > aArgs( 1 );
223 aArgs[0].Name = "FontHeight.Height";
224 aArgs[0].Value <<= fSelVal;
225
226 /* #i33380# DR 2004-09-03 Moved the following line above the Dispatch() call.
227 This instance may be deleted in the meantime (i.e. when a dialog is opened
228 while in Dispatch()), accessing members will crash in this case. */
229 ReleaseFocus_Impl();
230
231 m_rCtrl.dispatchCommand( aArgs );
232}
233
234void SvxFontSizeBox_Base::statusChanged_Impl( long nPoint, bool bErase )
235{
236 if ( !bErase )
237 {
238 // convert the metric
239 long nVal = nPoint;
240
241 // changed => set new value
242 if (m_xWidget->get_value() != nVal)
243 m_xWidget->set_value(nVal);
244 }
245 else
246 {
247 // delete value in the display
248 m_xWidget->set_value(-1L);
249 m_xWidget->set_active_or_entry_text("");
250 }
251 m_aCurText = m_xWidget->get_active_text();
252}
253
254void SvxFontSizeBox_Base::UpdateFont(const css::awt::FontDescriptor& rCurrentFont)
255{
256 // filling up the sizes list
257 auto nOldVal = m_xWidget->get_value(); // memorize old value
258 std::unique_ptr<FontList> xFontList(new FontList(Application::GetDefaultDevice()));
259
260 if (!rCurrentFont.Name.isEmpty())
261 {
262 FontMetric aFontMetric;
263 aFontMetric.SetFamilyName(rCurrentFont.Name);
264 aFontMetric.SetStyleName(rCurrentFont.StyleName);
265 aFontMetric.SetFontHeight(rCurrentFont.Height);
266 m_xWidget->Fill(&aFontMetric, xFontList.get());
267 }
268 else
269 {
270 m_xWidget->Fill(nullptr, xFontList.get());
271 }
272 m_xWidget->set_value(nOldVal); // restore old value
273 m_aCurText = m_xWidget->get_active_text(); // memorize to reset at ESC
274}
275
276IMPL_LINK(SvxFontSizeBox_Base, KeyInputHdl, const KeyEvent&, rKEvt, bool)bool SvxFontSizeBox_Base::LinkStubKeyInputHdl(void * instance
, const KeyEvent& data) { return static_cast<SvxFontSizeBox_Base
*>(instance)->KeyInputHdl(data); } bool SvxFontSizeBox_Base
::KeyInputHdl(const KeyEvent& rKEvt)
277{
278 return DoKeyInput(rKEvt);
279}
280
281bool SvxFontSizeBox_Base::DoKeyInput(const KeyEvent& rKEvt)
282{
283 bool bHandled = false;
284
285 sal_uInt16 nCode = rKEvt.GetKeyCode().GetCode();
286
287 switch (nCode)
288 {
289 case KEY_TAB:
290 m_bRelease = false;
291 Select();
292 break;
293
294 case KEY_ESCAPE:
295 m_xWidget->set_active_or_entry_text(m_aCurText);
296 if (!m_rCtrl.IsInSidebar())
297 {
298 ReleaseFocus_Impl();
299 bHandled = true;
300 }
301 break;
302 }
303
304 return bHandled;
305}
306
307bool SvxFontSizeBox_Impl::DoKeyInput(const KeyEvent& rKEvt)
308{
309 return SvxFontSizeBox_Base::DoKeyInput(rKEvt) || ChildKeyInput(rKEvt);
310}
311
312IMPL_LINK_NOARG(SvxFontSizeBox_Base, FocusOutHdl, weld::Widget&, void)void SvxFontSizeBox_Base::LinkStubFocusOutHdl(void * instance
, weld::Widget& data) { return static_cast<SvxFontSizeBox_Base
*>(instance)->FocusOutHdl(data); } void SvxFontSizeBox_Base
::FocusOutHdl(__attribute__ ((unused)) weld::Widget&)
313{
314 if (!m_xWidget->has_focus()) // a combobox can be comprised of different subwidget so double-check if none of those has focus
315 m_xWidget->set_active_or_entry_text(m_aCurText);
316}
317
318void SvxFontSizeBox_Impl::SetOptimalSize()
319{
320 SetSizePixel(get_preferred_size());
321}
322
323SvxFontSizeBox_Impl::SvxFontSizeBox_Impl(vcl::Window* pParent,
324 const uno::Reference<frame::XFrame>& rFrame,
325 FontHeightToolBoxControl& rCtrl)
326 : InterimItemWindow(pParent, "svx/ui/fontsizebox.ui", "FontSizeBox")
327 , SvxFontSizeBox_Base(m_xBuilder->weld_combo_box("fontsizecombobox"), rFrame, rCtrl)
328{
329}
330
331void SvxFontSizeBox_Impl::DataChanged( const DataChangedEvent& rDCEvt )
332{
333 if ( (rDCEvt.GetType() == DataChangedEventType::SETTINGS) &&
334 (rDCEvt.GetFlags() & AllSettingsFlags::STYLE) )
335 {
336 SetOptimalSize();
337 }
338}
339
340IMPL_LINK(SvxFontSizeBox_Base, DumpAsPropertyTreeHdl, tools::JsonWriter&, rJsonWriter, void)void SvxFontSizeBox_Base::LinkStubDumpAsPropertyTreeHdl(void *
instance, tools::JsonWriter& data) { return static_cast<
SvxFontSizeBox_Base *>(instance)->DumpAsPropertyTreeHdl
(data); } void SvxFontSizeBox_Base::DumpAsPropertyTreeHdl(tools
::JsonWriter& rJsonWriter)
341{
342 {
343 auto entriesNode = rJsonWriter.startNode("entries");
344 for (int i = 0, nCount = m_xWidget->get_count(); i < nCount; ++i)
345 {
346 auto entryNode = rJsonWriter.startNode("");
347 rJsonWriter.put("", m_xWidget->get_text(i));
348 }
349 }
350
351 int nActive = m_xWidget->get_active();
352 rJsonWriter.put("selectedCount", static_cast<sal_Int32>(nActive == -1 ? 0 : 1));
353 {
354 auto selectedNode = rJsonWriter.startNode("selectedEntries");
355 if (nActive != -1)
356 {
357 auto node = rJsonWriter.startNode("");
358 rJsonWriter.put("", static_cast<sal_Int32>(nActive));
359 }
360 }
361
362 rJsonWriter.put("command", ".uno:FontHeight");
363}
364
365FontHeightToolBoxControl::FontHeightToolBoxControl( const uno::Reference< uno::XComponentContext >& rxContext )
366 : svt::ToolboxController( rxContext,
367 uno::Reference< frame::XFrame >(),
368 ".uno:FontHeight" ),
369 m_pBox( nullptr )
370{
371 addStatusListener( ".uno:CharFontName");
372}
373
374// XInterface
375css::uno::Any SAL_CALL FontHeightToolBoxControl::queryInterface( const css::uno::Type& aType )
376{
377 uno::Any a = ToolboxController::queryInterface( aType );
378 if ( a.hasValue() )
379 return a;
380
381 return ::cppu::queryInterface( aType, static_cast< lang::XServiceInfo* >( this ));
382}
383
384void SAL_CALL FontHeightToolBoxControl::acquire() throw ()
385{
386 ToolboxController::acquire();
387}
388
389void SAL_CALL FontHeightToolBoxControl::release() throw ()
390{
391 ToolboxController::release();
392}
393
394// XServiceInfo
395sal_Bool SAL_CALL FontHeightToolBoxControl::supportsService( const OUString& ServiceName )
396{
397 return cppu::supportsService(this, ServiceName);
398}
399
400OUString SAL_CALL FontHeightToolBoxControl::getImplementationName()
401{
402 return "com.sun.star.svx.FontHeightToolBoxController";
403}
404
405uno::Sequence< OUString > SAL_CALL FontHeightToolBoxControl::getSupportedServiceNames( )
406{
407 return { "com.sun.star.frame.ToolbarController" };
408}
409
410// XComponent
411void SAL_CALL FontHeightToolBoxControl::dispose()
412{
413 svt::ToolboxController::dispose();
414
415 SolarMutexGuard aSolarMutexGuard;
416 m_xVclBox.disposeAndClear();
1
Calling 'VclPtr::disposeAndClear'
→
417 m_xWeldBox.reset();
418 m_pBox = nullptr;
419}
420
421// XStatusListener
422void SAL_CALL FontHeightToolBoxControl::statusChanged(
423 const frame::FeatureStateEvent& rEvent )
424{
425 if ( !m_pBox )
426 return;
427
428 SolarMutexGuard aSolarMutexGuard;
429 if (rEvent.FeatureURL.Path == "FontHeight")
430 {
431 if ( rEvent.IsEnabled )
432 {
433 m_pBox->set_sensitive(true);
434 frame::status::FontHeight aFontHeight;
435 if ( rEvent.State >>= aFontHeight )
436 m_pBox->statusChanged_Impl( long( 10. * aFontHeight.Height ), false );
437 else
438 m_pBox->statusChanged_Impl( long( -1 ), true );
439 }
440 else
441 {
442 m_pBox->set_sensitive(false);
443 m_pBox->statusChanged_Impl( long( -1 ), true );
444 }
445
446 if (m_pToolbar)
447 m_pToolbar->set_item_sensitive(m_aCommandURL.toUtf8(), rEvent.IsEnabled);
448 else
449 {
450 ToolBox* pToolBox = nullptr;
451 sal_uInt16 nId = 0;
452 if (getToolboxId(nId, &pToolBox))
453 pToolBox->EnableItem(nId, rEvent.IsEnabled);
454 }
455 }
456 else if ( rEvent.FeatureURL.Path == "CharFontName" )
457 {
458 if ( rEvent.State >>= m_aCurrentFont )
459 m_pBox->UpdateFont( m_aCurrentFont );
460 }
461}
462
463// XToolbarController
464void SAL_CALL FontHeightToolBoxControl::execute( sal_Int16 /*KeyModifier*/ )
465{
466}
467
468void SAL_CALL FontHeightToolBoxControl::click()
469{
470}
471
472void SAL_CALL FontHeightToolBoxControl::doubleClick()
473{
474}
475
476uno::Reference< awt::XWindow > SAL_CALL FontHeightToolBoxControl::createPopupWindow()
477{
478 return uno::Reference< awt::XWindow >();
479}
480
481uno::Reference< awt::XWindow > SAL_CALL FontHeightToolBoxControl::createItemWindow(
482 const uno::Reference< awt::XWindow >& xParent )
483{
484 uno::Reference< awt::XWindow > xItemWindow;
485
486 if (m_pBuilder)
487 {
488 SolarMutexGuard aSolarMutexGuard;
489
490 std::unique_ptr<weld::ComboBox> xWidget(m_pBuilder->weld_combo_box("fontsizecombobox"));
491
492 xItemWindow = css::uno::Reference<css::awt::XWindow>(new weld::TransportAsXWindow(xWidget.get()));
493
494 m_xWeldBox.reset(new SvxFontSizeBox_Base(std::move(xWidget), m_xFrame, *this));
495 m_pBox = m_xWeldBox.get();
496 //Get the box to fill itself with all its sizes
497 m_pBox->UpdateFont(m_aCurrentFont);
498 }
499 else
500 {
501 VclPtr<vcl::Window> pParent = VCLUnoHelper::GetWindow( xParent );
502 if ( pParent )
503 {
504 SolarMutexGuard aSolarMutexGuard;
505 m_xVclBox = VclPtr<SvxFontSizeBox_Impl>::Create( pParent, m_xFrame, *this );
506 m_pBox = m_xVclBox.get();
507 //Get the box to fill itself with all its sizes
508 m_pBox->UpdateFont(m_aCurrentFont);
509 //Make it size itself to its optimal size re above sizes
510 m_xVclBox->SetOptimalSize();
511 xItemWindow = VCLUnoHelper::GetInterface(m_xVclBox);
512 }
513 }
514
515 return xItemWindow;
516}
517
518void FontHeightToolBoxControl::dispatchCommand(
519 const uno::Sequence< beans::PropertyValue >& rArgs )
520{
521 uno::Reference< frame::XDispatchProvider > xDispatchProvider( m_xFrame, uno::UNO_QUERY );
522 if ( xDispatchProvider.is() )
523 {
524 util::URL aURL;
525 uno::Reference< frame::XDispatch > xDispatch;
526 uno::Reference< util::XURLTransformer > xURLTransformer = getURLTransformer();
527
528 aURL.Complete = ".uno:FontHeight";
529 xURLTransformer->parseStrict( aURL );
530 xDispatch = xDispatchProvider->queryDispatch( aURL, OUString(), 0 );
531 if ( xDispatch.is() )
532 xDispatch->dispatch( aURL, rArgs );
533 }
534}
535
536}
537
538extern "C" SAL_DLLPUBLIC_EXPORT__attribute__ ((visibility("default"))) css::uno::XInterface *
539com_sun_star_svx_FontHeightToolBoxController_get_implementation(
540 css::uno::XComponentContext *rxContext,
541 css::uno::Sequence<css::uno::Any> const &)
542{
543 return cppu::acquire(new FontHeightToolBoxControl(rxContext));
544}
545
546/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
←

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

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

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

→
1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#ifndef INCLUDED_RTL_REF_HXX
21#define INCLUDED_RTL_REF_HXX
22
23#include "sal/config.h"
24
25#include <cassert>
26#include <cstddef>
27#include <functional>
28#ifdef LIBO_INTERNAL_ONLY1
29#include <type_traits>
30#endif
31
32#include "sal/types.h"
33
34namespace rtl
35{
36
37/** Template reference class for reference type.
38*/
39template <class reference_type>
40class Reference
41{
42 /** The <b>reference_type</b> body pointer.
43 */
44 reference_type * m_pBody;
45
46
47public:
48 /** Constructor...
49 */
50 Reference()
51 : m_pBody (NULL__null)
52 {}
53
54
55 /** Constructor...
56 */
57 Reference (reference_type * pBody, __sal_NoAcquire)
58 : m_pBody (pBody)
59 {
60 }
61
62 /** Constructor...
63 */
64 Reference (reference_type * pBody)
65 : m_pBody (pBody)
66 {
67 if (m_pBody)
68 m_pBody->acquire();
69 }
70
71 /** Copy constructor...
72 */
73 Reference (const Reference<reference_type> & handle)
74 : m_pBody (handle.m_pBody)
75 {
76 if (m_pBody)
3
←
Assuming field 'm_pBody' is non-null
→
4
←
Taking true branch
→
77 m_pBody->acquire();
78 }
79
80#ifdef LIBO_INTERNAL_ONLY1
81 /** Move constructor...
82 */
83 Reference (Reference<reference_type> && handle) noexcept
84 : m_pBody (handle.m_pBody)
85 {
86 handle.m_pBody = nullptr;
87 }
88#endif
89
90#if defined LIBO_INTERNAL_ONLY1
91 /** Up-casting conversion constructor: Copies interface reference.
92
93 Does not work for up-casts to ambiguous bases.
94
95 @param rRef another reference
96 */
97 template< class derived_type >
98 inline Reference(
99 const Reference< derived_type > & rRef,
100 std::enable_if_t<std::is_base_of_v<reference_type, derived_type>, int> = 0 )
101 : m_pBody (rRef.get())
102 {
103 if (m_pBody)
104 m_pBody->acquire();
105 }
106#endif
107
108 /** Destructor...
109 */
110 ~Reference() COVERITY_NOEXCEPT_FALSE
111 {
112 if (m_pBody)
113 m_pBody->release();
114 }
115
116 /** Set...
117 Similar to assignment.
118 */
119 Reference<reference_type> &
120 SAL_CALL set (reference_type * pBody)
121 {
122 if (pBody)
123 pBody->acquire();
124 reference_type * const pOld = m_pBody;
125 m_pBody = pBody;
126 if (pOld)
127 pOld->release();
128 return *this;
129 }
130
131 /** Assignment.
132 Unbinds this instance from its body (if bound) and
133 bind it to the body represented by the handle.
134 */
135 Reference<reference_type> &
136 SAL_CALL operator= (const Reference<reference_type> & handle)
137 {
138 return set( handle.m_pBody );
139 }
140
141#ifdef LIBO_INTERNAL_ONLY1
142 /** Assignment.
143 * Unbinds this instance from its body (if bound),
144 * bind it to the body represented by the handle, and
145 * set the body represented by the handle to nullptr.
146 */
147 Reference<reference_type> &
148 operator= (Reference<reference_type> && handle)
149 {
150 // self-movement guts ourself
151 if (m_pBody)
152 m_pBody->release();
153 m_pBody = handle.m_pBody;
154 handle.m_pBody = nullptr;
155 return *this;
156 }
157#endif
158
159 /** Assignment...
160 */
161 Reference<reference_type> &
162 SAL_CALL operator= (reference_type * pBody)
163 {
164 return set( pBody );
165 }
166
167 /** Unbind the body from this handle.
168 Note that for a handle representing a large body,
169 "handle.clear().set(new body());" _might_
170 perform a little bit better than "handle.set(new body());",
171 since in the second case two large objects exist in memory
172 (the old body and the new body).
173 */
174 Reference<reference_type> & SAL_CALL clear()
175 {
176 if (m_pBody
6.1
Field 'm_pBody' is non-null
6.1
Field 'm_pBody' is non-null
6.1
Field 'm_pBody' is non-null
6.1
Field 'm_pBody' is non-null
)
7
←
Taking true branch
→
177 {
178 reference_type * const pOld = m_pBody;
179 m_pBody = NULL__null;
180 pOld->release();
8
←
Calling 'VclReferenceBase::release'
→
12
←
Returning; memory was released
→
181 }
182 return *this;
183 }
184
185
186 /** Get the body. Can be used instead of operator->().
187 I.e. handle->someBodyOp() and handle.get()->someBodyOp()
188 are the same.
189 */
190 reference_type * SAL_CALL get() const
191 {
192 return m_pBody;
15
←
Use of memory after it is freed
193 }
194
195
196 /** Probably most common used: handle->someBodyOp().
197 */
198 reference_type * SAL_CALL operator->() const
199 {
200 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 200, __extension__ __PRETTY_FUNCTION__));
201 return m_pBody;
202 }
203
204
205 /** Allows (*handle).someBodyOp().
206 */
207 reference_type & SAL_CALL operator*() const
208 {
209 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 209, __extension__ __PRETTY_FUNCTION__));
210 return *m_pBody;
211 }
212
213
214 /** Returns True if the handle does point to a valid body.
215 */
216 bool SAL_CALL is() const
217 {
218 return (m_pBody != NULL__null);
219 }
220
221#if defined LIBO_INTERNAL_ONLY1
222 /** Returns True if the handle does point to a valid body.
223 */
224 explicit operator bool() const
225 {
226 return is();
227 }
228#endif
229
230 /** Returns True if this points to pBody.
231 */
232 bool SAL_CALL operator== (const reference_type * pBody) const
233 {
234 return (m_pBody == pBody);
235 }
236
237
238 /** Returns True if handle points to the same body.
239 */
240 bool
241 SAL_CALL operator== (const Reference<reference_type> & handle) const
242 {
243 return (m_pBody == handle.m_pBody);
244 }
245
246
247 /** Needed to place References into STL collection.
248 */
249 bool
250 SAL_CALL operator!= (const Reference<reference_type> & handle) const
251 {
252 return (m_pBody != handle.m_pBody);
253 }
254
255
256 /** Needed to place References into STL collection.
257 */
258 bool
259 SAL_CALL operator< (const Reference<reference_type> & handle) const
260 {
261 return (m_pBody < handle.m_pBody);
262 }
263
264
265 /** Needed to place References into STL collection.
266 */
267 bool
268 SAL_CALL operator> (const Reference<reference_type> & handle) const
269 {
270 return (m_pBody > handle.m_pBody);
271 }
272};
273
274} // namespace rtl
275
276#if defined LIBO_INTERNAL_ONLY1
277namespace std
278{
279
280/// @cond INTERNAL
281/**
282 Make rtl::Reference hashable by default for use in STL containers.
283
284 @since LibreOffice 6.3
285*/
286template<typename T>
287struct hash<::rtl::Reference<T>>
288{
289 std::size_t operator()(::rtl::Reference<T> const & s) const
290 { return std::size_t(s.get()); }
291};
292/// @endcond
293
294}
295
296#endif
297
298#endif /* ! INCLUDED_RTL_REF_HXX */
299
300/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
←

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

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