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 TableWindow.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 DBACCESS_DLLIMPLEMENTATION -D EXCEPTIONS_ON -D LIBO_INTERNAL_ONLY -I /home/maarten/src/libreoffice/core/external/unixODBC/inc -I /home/maarten/src/libreoffice/core/external/boost/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/boost -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/dbaccess/inc -I /home/maarten/src/libreoffice/core/dbaccess/source/inc -I /home/maarten/src/libreoffice/core/dbaccess/source/ui/inc -I /home/maarten/src/libreoffice/core/workdir/YaccTarget/connectivity/source/parse -I /home/maarten/src/libreoffice/core/workdir/CustomTarget/officecfg/registry -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/udkapi/normal -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/offapi/normal -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/dbaccess/source/ui/querydesign/TableWindow.cxx

/home/maarten/src/libreoffice/core/dbaccess/source/ui/querydesign/TableWindow.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 <TableWindow.hxx>
21#include <TableWindowListBox.hxx>
22#include <TableWindowData.hxx>
23#include <imageprovider.hxx>
24#include <JoinController.hxx>
25#include <JoinTableView.hxx>
26#include <JoinDesignView.hxx>
27#include <osl/diagnose.h>
28#include <vcl/svapp.hxx>
29#include <vcl/wall.hxx>
30#include <vcl/settings.hxx>
31#include <vcl/commandevent.hxx>
32#include <vcl/event.hxx>
33#include <vcl/ptrstyle.hxx>
34
35#include <com/sun/star/container/XContainer.hpp>
36#include <com/sun/star/container/XNameAccess.hpp>
37#include <com/sun/star/beans/XPropertySet.hpp>
38#include <com/sun/star/sdb/application/DatabaseObject.hpp>
39#include <bitmaps.hlst>
40#include <TableWindowAccess.hxx>
41#include <connectivity/dbtools.hxx>
42#include <vcl/builder.hxx>
43#include <vcl/menu.hxx>
44
45using namespace dbaui;
46using namespace ::utl;
47using namespace ::com::sun::star;
48using namespace ::com::sun::star::sdb;
49using namespace ::com::sun::star::sdbc;
50using namespace ::com::sun::star::sdbcx;
51using namespace ::com::sun::star::uno;
52using namespace ::com::sun::star::beans;
53using namespace ::com::sun::star::container;
54using namespace ::com::sun::star::lang;
55using namespace ::com::sun::star::accessibility;
56
57namespace DatabaseObject = css::sdb::application::DatabaseObject;
58
59#define TABWIN_SIZING_AREA4 4
60#define TABWIN_WIDTH_MIN90 90
61#define TABWIN_HEIGHT_MIN80 80
62
63namespace {
64
65void Draw3DBorder(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect)
66{
67 // Use the System Style-Settings for my colours
68 const StyleSettings& aSystemStyle = Application::GetSettings().GetStyleSettings();
69
70 // Black lines for bottom and right
71 rRenderContext.SetLineColor(aSystemStyle.GetDarkShadowColor());
72 rRenderContext.DrawLine(rRect.BottomLeft(), rRect.BottomRight());
73 rRenderContext.DrawLine(rRect.BottomRight(), rRect.TopRight());
74
75 // Dark grey lines over the black lines
76 rRenderContext.SetLineColor(aSystemStyle.GetShadowColor());
77 Point aEHvector(1, 1);
78 rRenderContext.DrawLine(rRect.BottomLeft() + Point(1, -1), rRect.BottomRight() - aEHvector);
79 rRenderContext.DrawLine(rRect.BottomRight() - aEHvector, rRect.TopRight() + Point(-1, 1));
80
81 // Light grey lines for top and left
82 rRenderContext.SetLineColor(aSystemStyle.GetLightColor());
83 rRenderContext.DrawLine(rRect.BottomLeft() + Point(1, -2), rRect.TopLeft() + aEHvector);
84 rRenderContext.DrawLine(rRect.TopLeft() + aEHvector, rRect.TopRight() + Point(-2, 1));
85}
86
87}
88
89OTableWindow::OTableWindow( vcl::Window* pParent, const TTableWindowData::value_type& pTabWinData )
90 : ::comphelper::OContainerListener(m_aMutex)
91 ,Window( pParent, WB_3DLOOK|WB_MOVEABLE )
92 ,m_aTypeImage( VclPtr<FixedImage>::Create(this) )
93 ,m_xTitle( VclPtr<OTableWindowTitle>::Create(this) )
94 ,m_pData( pTabWinData )
95 ,m_nMoveCount(0)
96 ,m_nMoveIncrement(1)
97 ,m_nSizingFlags( SizingFlags::NONE )
98{
99
100 // Set position and size
101 if( GetData()->HasPosition() )
102 SetPosPixel( GetData()->GetPosition() );
103
104 if( GetData()->HasSize() )
105 SetSizePixel( GetData()->GetSize() );
106
107 // Set background
108 const StyleSettings& aSystemStyle = Application::GetSettings().GetStyleSettings();
109 SetBackground(Wallpaper(aSystemStyle.GetFaceColor()));
110 // Set the text colour even though there is no text,
111 // because derived classes might need it
112 SetTextColor(aSystemStyle.GetButtonTextColor());
113
114 EnableClipSiblings();
115}
116
117OTableWindow::~OTableWindow()
118{
119 disposeOnce();
120}
121
122void OTableWindow::dispose()
123{
124 if (m_xListBox)
1
Taking false branch
→
125 {
126 OSL_ENSURE(m_xListBox->get_widget().n_children()==0,"Forgot to call EmptyListbox()!")do { if (true && (!(m_xListBox->get_widget().n_children
()==0))) { sal_detail_logFormat((SAL_DETAIL_LOG_LEVEL_WARN), (
"legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/querydesign/TableWindow.cxx"
":" "126" ": "), "%s", "Forgot to call EmptyListbox()!"); } }
while (false);
127 }
128 m_xListBox.disposeAndClear();
129 if ( m_pContainerListener.is() )
2
←
Taking false branch
→
130 m_pContainerListener->dispose();
131
132 m_aTypeImage.disposeAndClear();
133 m_xTitle.disposeAndClear();
3
←
Calling 'VclPtr::disposeAndClear'
→
134 vcl::Window::dispose();
135}
136
137const OJoinTableView* OTableWindow::getTableView() const
138{
139 OSL_ENSURE(static_cast<OJoinTableView*>(GetParent()),"No OJoinTableView!")do { if (true && (!(static_cast<OJoinTableView*>
(GetParent())))) { sal_detail_logFormat((SAL_DETAIL_LOG_LEVEL_WARN
), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/querydesign/TableWindow.cxx"
":" "139" ": "), "%s", "No OJoinTableView!"); } } while (false
);
140 return static_cast<OJoinTableView*>(GetParent());
141}
142
143OJoinTableView* OTableWindow::getTableView()
144{
145 OSL_ENSURE(static_cast<OJoinTableView*>(GetParent()),"No OJoinTableView!")do { if (true && (!(static_cast<OJoinTableView*>
(GetParent())))) { sal_detail_logFormat((SAL_DETAIL_LOG_LEVEL_WARN
), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/querydesign/TableWindow.cxx"
":" "145" ": "), "%s", "No OJoinTableView!"); } } while (false
);
146 return static_cast<OJoinTableView*>(GetParent());
147}
148
149OJoinDesignView* OTableWindow::getDesignView()
150{
151 OSL_ENSURE(static_cast<OJoinDesignView*>(GetParent()->GetParent()->GetParent()),"No OJoinDesignView!")do { if (true && (!(static_cast<OJoinDesignView*>
(GetParent()->GetParent()->GetParent())))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/querydesign/TableWindow.cxx"
":" "151" ": "), "%s", "No OJoinDesignView!"); } } while (false
);
152 return static_cast<OJoinDesignView*>(GetParent()->GetParent()->GetParent());
153}
154
155void OTableWindow::SetPosPixel( const Point& rNewPos )
156{
157 Point aNewPosData = rNewPos + getTableView()->GetScrollOffset();
158 GetData()->SetPosition( aNewPosData );
159 Window::SetPosPixel( rNewPos );
160}
161
162void OTableWindow::SetSizePixel( const Size& rNewSize )
163{
164 Size aOutSize(rNewSize);
165 if( aOutSize.Width() < TABWIN_WIDTH_MIN90 )
166 aOutSize.setWidth( TABWIN_WIDTH_MIN90 );
167 if( aOutSize.Height() < TABWIN_HEIGHT_MIN80 )
168 aOutSize.setHeight( TABWIN_HEIGHT_MIN80 );
169
170 GetData()->SetSize( aOutSize );
171 Window::SetSizePixel( aOutSize );
172}
173
174void OTableWindow::SetPosSizePixel( const Point& rNewPos, const Size& rNewSize )
175{
176 SetPosPixel( rNewPos );
177 SetSizePixel( rNewSize );
178}
179
180void OTableWindow::FillListBox()
181{
182 clearListBox();
183 weld::TreeView& rTreeView = m_xListBox->get_widget();
184 assert(!rTreeView.n_children())(static_cast <bool> (!rTreeView.n_children()) ? void (0
) : __assert_fail ("!rTreeView.n_children()", "/home/maarten/src/libreoffice/core/dbaccess/source/ui/querydesign/TableWindow.cxx"
, 184, __extension__ __PRETTY_FUNCTION__));
185
186 if ( !m_pContainerListener.is() )
187 {
188 Reference< XContainer> xContainer(m_pData->getColumns(),UNO_QUERY);
189 if ( xContainer.is() )
190 m_pContainerListener = new ::comphelper::OContainerListenerAdapter(this,xContainer);
191 }
192
193 // mark all primary keys with special image
194 OUString aPrimKeyImage(BMP_PRIMARY_KEY"dbaccess/res/jo01.png");
195
196 if (GetData()->IsShowAll())
197 {
198 rTreeView.append(OUString::number(reinterpret_cast<sal_uInt64>(createUserData(nullptr,false))), OUString("*"));
199 }
200
201 Reference<XNameAccess> xPKeyColumns;
202 try
203 {
204 xPKeyColumns = dbtools::getPrimaryKeyColumns_throw(m_pData->getTable());
205 }
206 catch(Exception&)
207 {
208 OSL_FAIL("Exception occurred!")do { if (true && (((sal_Bool)1))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/querydesign/TableWindow.cxx"
":" "208" ": "), "%s", "Exception occurred!"); } } while (false
);
209 }
210 try
211 {
212 Reference< XNameAccess > xColumns = m_pData->getColumns();
213 if( xColumns.is() )
214 {
215 Sequence< OUString> aColumns = xColumns->getElementNames();
216 const OUString* pIter = aColumns.getConstArray();
217 const OUString* pEnd = pIter + aColumns.getLength();
218
219 for (; pIter != pEnd; ++pIter)
220 {
221 bool bPrimaryKeyColumn = xPKeyColumns.is() && xPKeyColumns->hasByName( *pIter );
222
223 OUString sId;
224 Reference<XPropertySet> xColumn(xColumns->getByName(*pIter),UNO_QUERY);
225 if (xColumn.is())
226 sId = OUString::number(reinterpret_cast<sal_uInt64>(createUserData(xColumn, bPrimaryKeyColumn)));
227
228 rTreeView.append(sId, *pIter);
229
230 // is this column in the primary key
231 if ( bPrimaryKeyColumn )
232 rTreeView.set_image(rTreeView.n_children() - 1, aPrimKeyImage);
233 }
234
235 }
236 }
237 catch(Exception&)
238 {
239 OSL_FAIL("Exception occurred!")do { if (true && (((sal_Bool)1))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/querydesign/TableWindow.cxx"
":" "239" ": "), "%s", "Exception occurred!"); } } while (false
);
240 }
241}
242
243void* OTableWindow::createUserData(const Reference< XPropertySet>& /*_xColumn*/,bool /*_bPrimaryKey*/)
244{
245 return nullptr;
246}
247
248void OTableWindow::deleteUserData(void*& _pUserData)
249{
250 OSL_ENSURE(!_pUserData,"INVALID call. Need to delete the userclass!")do { if (true && (!(!_pUserData))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/querydesign/TableWindow.cxx"
":" "250" ": "), "%s", "INVALID call. Need to delete the userclass!"
); } } while (false);
251 _pUserData = nullptr;
252}
253
254void OTableWindow::clearListBox()
255{
256 if ( !m_xListBox )
257 return;
258
259 weld::TreeView& rTreeView = m_xListBox->get_widget();
260 rTreeView.all_foreach([this, &rTreeView](weld::TreeIter& rEntry){
261 void* pUserData = reinterpret_cast<void*>(rTreeView.get_id(rEntry).toUInt64());
262 deleteUserData(pUserData);
263 return false;
264 });
265
266 rTreeView.clear();
267}
268
269void OTableWindow::impl_updateImage()
270{
271 ImageProvider aImageProvider( getDesignView()->getController().getConnection() );
272
273 Image aImage;
274 aImageProvider.getImages( GetComposedName(), m_pData->isQuery() ? DatabaseObject::QUERY : DatabaseObject::TABLE, aImage );
275
276 if ( !aImage )
277 {
278 OSL_FAIL( "OTableWindow::impl_updateImage: no images!" )do { if (true && (((sal_Bool)1))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/dbaccess/source/ui/querydesign/TableWindow.cxx"
":" "278" ": "), "%s", "OTableWindow::impl_updateImage: no images!"
); } } while (false);
279 return;
280 }
281
282 m_aTypeImage->SetModeImage( aImage );
283 m_aTypeImage->Show();
284}
285
286bool OTableWindow::Init()
287{
288 // create list box if necessary
289 if ( !m_xListBox )
290 {
291 m_xListBox = VclPtr<OTableWindowListBox>::Create(this);
292 assert(m_xListBox && "OTableWindow::Init() : CreateListBox returned NULL !")(static_cast <bool> (m_xListBox && "OTableWindow::Init() : CreateListBox returned NULL !"
) ? void (0) : __assert_fail ("m_xListBox && \"OTableWindow::Init() : CreateListBox returned NULL !\""
, "/home/maarten/src/libreoffice/core/dbaccess/source/ui/querydesign/TableWindow.cxx"
, 292, __extension__ __PRETTY_FUNCTION__));
293 m_xListBox->get_widget().set_selection_mode(SelectionMode::Multiple);
294 }
295
296 // Set the title
297 m_xTitle->SetText( m_pData->GetWinName() );
298 m_xTitle->Show();
299
300 m_xListBox->Show();
301
302 // add the fields to the ListBox
303 FillListBox();
304 m_xListBox->get_widget().unselect_all();
305
306 impl_updateImage();
307
308 return true;
309}
310
311void OTableWindow::DataChanged(const DataChangedEvent& rDCEvt)
312{
313 if (rDCEvt.GetType() == DataChangedEventType::SETTINGS)
314 {
315 // In the worst-case the colours have changed so
316 // adapt myself to the new colours
317 const StyleSettings& aSystemStyle = Application::GetSettings().GetStyleSettings();
318 SetBackground(Wallpaper(aSystemStyle.GetFaceColor()));
319 SetTextColor(aSystemStyle.GetButtonTextColor());
320 }
321}
322
323void OTableWindow::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect)
324{
325 tools::Rectangle aRect(Point(0,0), GetOutputSizePixel());
326 Window::Paint(rRenderContext, rRect);
327 Draw3DBorder(rRenderContext, aRect);
328}
329
330tools::Rectangle OTableWindow::getSizingRect(const Point& _rPos,const Size& _rOutputSize) const
331{
332 tools::Rectangle aSizingRect( GetPosPixel(), GetSizePixel() );
333
334 if( m_nSizingFlags & SizingFlags::Top )
335 {
336 if( _rPos.Y() < 0 )
337 aSizingRect.SetTop( 0 );
338 else
339 aSizingRect.SetTop( _rPos.Y() );
340 }
341
342 if( m_nSizingFlags & SizingFlags::Bottom )
343 {
344 if( _rPos.Y() > _rOutputSize.Height() )
345 aSizingRect.SetBottom( _rOutputSize.Height() );
346 else
347 aSizingRect.SetBottom( _rPos.Y() );
348 }
349
350 if( m_nSizingFlags & SizingFlags::Right )
351 {
352 if( _rPos.X() > _rOutputSize.Width() )
353 aSizingRect.SetRight( _rOutputSize.Width() );
354 else
355 aSizingRect.SetRight( _rPos.X() );
356 }
357
358 if( m_nSizingFlags & SizingFlags::Left )
359 {
360 if( _rPos.X() < 0 )
361 aSizingRect.SetLeft( 0 );
362 else
363 aSizingRect.SetLeft( _rPos.X() );
364 }
365 return aSizingRect;
366}
367
368void OTableWindow::setSizingFlag(const Point& _rPos)
369{
370 Size aOutSize = GetOutputSizePixel();
371 // Set the flags when the mouse cursor is in the sizing area
372 m_nSizingFlags = SizingFlags::NONE;
373
374 if( _rPos.X() < TABWIN_SIZING_AREA4 )
375 m_nSizingFlags |= SizingFlags::Left;
376
377 if( _rPos.Y() < TABWIN_SIZING_AREA4 )
378 m_nSizingFlags |= SizingFlags::Top;
379
380 if( _rPos.X() > aOutSize.Width()-TABWIN_SIZING_AREA4 )
381 m_nSizingFlags |= SizingFlags::Right;
382
383 if( _rPos.Y() > aOutSize.Height()-TABWIN_SIZING_AREA4 )
384 m_nSizingFlags |= SizingFlags::Bottom;
385}
386
387void OTableWindow::MouseMove( const MouseEvent& rEvt )
388{
389 Window::MouseMove(rEvt);
390
391 OJoinTableView* pCont = getTableView();
392 if (pCont->getDesignView()->getController().isReadOnly())
393 return;
394
395 Point aPos = rEvt.GetPosPixel();
396 setSizingFlag(aPos);
397 PointerStyle aPointer = PointerStyle::Arrow;
398
399 // Set the mouse cursor when it is in the sizing area
400 if ( m_nSizingFlags == SizingFlags::Top ||
401 m_nSizingFlags == SizingFlags::Bottom )
402 aPointer = PointerStyle::SSize;
403 else if ( m_nSizingFlags == SizingFlags::Left ||
404 m_nSizingFlags ==SizingFlags::Right )
405 aPointer = PointerStyle::ESize;
406 else if ( m_nSizingFlags == (SizingFlags::Left | SizingFlags::Top) ||
407 m_nSizingFlags == (SizingFlags::Right | SizingFlags::Bottom) )
408 aPointer = PointerStyle::SESize;
409 else if ( m_nSizingFlags == (SizingFlags::Right | SizingFlags::Top) ||
410 m_nSizingFlags == (SizingFlags::Left | SizingFlags::Bottom) )
411 aPointer = PointerStyle::NESize;
412
413 SetPointer( aPointer );
414}
415
416void OTableWindow::MouseButtonDown( const MouseEvent& rEvt )
417{
418 // When resizing, the parent must be informed that
419 // the window size of its child has changed
420 if( m_nSizingFlags != SizingFlags::NONE )
421 getTableView()->BeginChildSizing( this, GetPointer() );
422
423 Window::MouseButtonDown( rEvt );
424}
425
426void OTableWindow::Resize()
427{
428 // The window must not disappear so we enforce a minimum size
429 Size aOutSize = GetOutputSizePixel();
430 aOutSize = Size(CalcZoom(aOutSize.Width()),CalcZoom(aOutSize.Height()));
431
432 long nTitleHeight = CalcZoom( GetTextHeight() )+ CalcZoom( 4 );
433
434 // Set the title and ListBox
435 long n5Pos = CalcZoom(5);
436 long nPositionX = n5Pos;
437 long nPositionY = n5Pos;
438
439 // position the image which indicates the type
440 m_aTypeImage->SetPosPixel( Point( nPositionX, nPositionY ) );
441 Size aImageSize( m_aTypeImage->GetImage().GetSizePixel() );
442 m_aTypeImage->SetSizePixel( aImageSize );
443
444 if ( nTitleHeight < aImageSize.Height() )
445 nTitleHeight = aImageSize.Height();
446
447 nPositionX += aImageSize.Width() + CalcZoom( 2 );
448 m_xTitle->SetPosSizePixel( Point( nPositionX, nPositionY ), Size( aOutSize.Width() - nPositionX - n5Pos, nTitleHeight ) );
449
450 long nTitleToList = CalcZoom( 3 );
451
452 m_xListBox->SetPosSizePixel(
453 Point( n5Pos, nPositionY + nTitleHeight + nTitleToList ),
454 Size( aOutSize.Width() - 2 * n5Pos, aOutSize.Height() - ( nPositionY + nTitleHeight + nTitleToList ) - n5Pos )
455 );
456
457 Window::Invalidate();
458}
459
460void OTableWindow::SetBoldTitle( bool bBold )
461{
462 vcl::Font aFont = m_xTitle->GetFont();
463 aFont.SetWeight( bBold?WEIGHT_BOLD:WEIGHT_NORMAL );
464 m_xTitle->SetFont( aFont );
465 m_xTitle->Invalidate();
466}
467
468void OTableWindow::GetFocus()
469{
470 Window::GetFocus();
471 // we have to forward the focus to our listbox to enable keystrokes
472 if(m_xListBox)
473 m_xListBox->GrabFocus();
474}
475
476void OTableWindow::setActive(bool _bActive)
477{
478 SetBoldTitle( _bActive );
479 if (_bActive || !m_xListBox)
480 return;
481
482 weld::TreeView& rTreeView = m_xListBox->get_widget();
483 if (rTreeView.get_selected_index() != -1)
484 rTreeView.unselect_all();
485}
486
487void OTableWindow::Remove()
488{
489 // Delete the window
490 OJoinTableView* pTabWinCont = getTableView();
491 VclPtr<OTableWindow> aHoldSelf(this); // keep ourselves alive during the RemoveTabWin process
492 pTabWinCont->RemoveTabWin( this );
493 pTabWinCont->Invalidate();
494}
495
496bool OTableWindow::ExistsAConn() const
497{
498 return getTableView()->ExistsAConn(this);
499}
500
501void OTableWindow::EnumValidFields(std::vector< OUString>& arrstrFields)
502{
503 arrstrFields.clear();
504 weld::TreeView& rTreeView = m_xListBox->get_widget();
505
506 // This default implementation counts every item in the ListBox ... for any other behaviour it must be over-written
507 rTreeView.all_foreach([&rTreeView, &arrstrFields](weld::TreeIter& rEntry){
508 arrstrFields.push_back(rTreeView.get_text(rEntry));
509 return false;
510 });
511}
512
513void OTableWindow::StateChanged( StateChangedType nType )
514{
515 Window::StateChanged( nType );
516
517 // FIXME RenderContext
518
519 if ( nType != StateChangedType::Zoom )
520 return;
521
522 const StyleSettings& rStyleSettings = GetSettings().GetStyleSettings();
523
524 vcl::Font aFont = rStyleSettings.GetGroupFont();
525 if ( IsControlFont() )
526 aFont.Merge( GetControlFont() );
527 SetZoomedPointFont(*this, aFont);
528
529 m_xTitle->SetZoom(GetZoom());
530 m_xListBox->SetZoom(GetZoom());
531 Resize();
532 Invalidate();
533}
534
535Reference< XAccessible > OTableWindow::CreateAccessible()
536{
537 return new OTableWindowAccess(this);
538}
539
540void OTableWindow::Command(const CommandEvent& rEvt)
541{
542 switch (rEvt.GetCommand())
543 {
544 case CommandEventId::ContextMenu:
545 {
546 OJoinController& rController = getDesignView()->getController();
547 if(!rController.isReadOnly() && rController.isConnected())
548 {
549 Point ptWhere;
550 if ( rEvt.IsMouseEvent() )
551 ptWhere = rEvt.GetMousePosPixel();
552 else
553 {
554 weld::TreeView& rTreeView = m_xListBox->get_widget();
555 std::unique_ptr<weld::TreeIter> xCurrent = rTreeView.make_iterator();
556 if (rTreeView.get_cursor(xCurrent.get()))
557 ptWhere = rTreeView.get_row_area(*xCurrent).Center();
558 else
559 ptWhere = m_xTitle->GetPosPixel();
560 }
561
562 VclBuilder aBuilder(nullptr, AllSettings::GetUIRootDir(), "dbaccess/ui/jointablemenu.ui", "");
563 VclPtr<PopupMenu> aContextMenu(aBuilder.get_menu("menu"));
564 if (aContextMenu->Execute(this, ptWhere))
565 Remove();
566 }
567 break;
568 }
569 default:
570 Window::Command(rEvt);
571 }
572}
573
574bool OTableWindow::PreNotify(NotifyEvent& rNEvt)
575{
576 bool bHandled = false;
577 switch (rNEvt.GetType())
578 {
579 case MouseNotifyEvent::KEYINPUT:
580 {
581 if ( getDesignView()->getController().isReadOnly() )
582 break;
583
584 const KeyEvent* pKeyEvent = rNEvt.GetKeyEvent();
585 const vcl::KeyCode& rCode = pKeyEvent->GetKeyCode();
586 if ( rCode.IsMod1() )
587 {
588 Point aStartPoint = GetPosPixel();
589 if ( rCode.IsShift() )
590 {
591 aStartPoint.setX( GetSizePixel().Width() );
592 aStartPoint.setY( GetSizePixel().Height() );
593 }
594
595 switch( rCode.GetCode() )
596 {
597 case KEY_DOWN:
598 bHandled = true;
599 aStartPoint.AdjustY(m_nMoveIncrement );
600 break;
601 case KEY_UP:
602 bHandled = true;
603 aStartPoint.AdjustY(-m_nMoveIncrement );
604 break;
605 case KEY_LEFT:
606 bHandled = true;
607 aStartPoint.AdjustX(-m_nMoveIncrement );
608 break;
609 case KEY_RIGHT:
610 bHandled = true;
611 aStartPoint.AdjustX(m_nMoveIncrement );
612 break;
613 }
614 if ( bHandled )
615 {
616 if ( rCode.IsShift() )
617 {
618 OJoinTableView* pView = getTableView();
619 Point ptOld = GetPosPixel();
620 Size aSize = pView->getRealOutputSize();
621 Size aNewSize(aStartPoint.X(),aStartPoint.Y());
622 if ( ((ptOld.X() + aNewSize.Width()) <= aSize.Width())
623 && ((ptOld.Y() + aNewSize.Height()) <= aSize.Height()) )
624 {
625 if ( aNewSize.Width() < TABWIN_WIDTH_MIN90 )
626 aNewSize.setWidth( TABWIN_WIDTH_MIN90 );
627 if ( aNewSize.Height() < TABWIN_HEIGHT_MIN80 )
628 aNewSize.setHeight( TABWIN_HEIGHT_MIN80 );
629
630 Size szOld = GetSizePixel();
631
632 aNewSize = Size(pView->CalcZoom(aNewSize.Width()),pView->CalcZoom(aNewSize.Height()));
633 SetPosSizePixel( ptOld, aNewSize );
634 pView->TabWinSized(this, ptOld, szOld);
635 Invalidate( InvalidateFlags::NoChildren );
636 }
637 }
638 else
639 {
640 // remember how often the user moved our window
641 ++m_nMoveCount;
642 if( m_nMoveCount == 5 )
643 m_nMoveIncrement = 10;
644 else if( m_nMoveCount > 15 )
645 m_nMoveCount = m_nMoveIncrement = 20;
646
647 Point aOldDataPoint = GetData()->GetPosition();
648 Point aNewDataPoint = aStartPoint + getTableView()->GetScrollOffset();
649 if ( aNewDataPoint.X() > -1 && aNewDataPoint.Y() > -1 )
650 {
651 OJoinTableView* pView = getTableView();
652 if ( pView->isMovementAllowed(aNewDataPoint, GetData()->GetSize()) )
653 {
654 SetPosPixel(aStartPoint);
655
656 // aNewDataPoint can not be used here because SetPosPixel reset it
657 pView->EnsureVisible(GetData()->GetPosition(), GetData()->GetSize());
658 pView->TabWinMoved(this,aOldDataPoint);
659 Invalidate(InvalidateFlags::NoChildren);
660 getDesignView()->getController().setModified( true );
661 }
662 else
663 {
664 m_nMoveCount = 0; // reset our movement count
665 m_nMoveIncrement = 1;
666 }
667 }
668 else
669 {
670 m_nMoveCount = 0; // reset our movement count
671 m_nMoveIncrement = 1;
672 }
673 }
674 m_nSizingFlags = SizingFlags::NONE;
675 }
676 else
677 {
678 m_nMoveCount = 0; // reset our movement count
679 m_nMoveIncrement = 1;
680 }
681 }
682 else
683 {
684 m_nMoveCount = 0; // reset our movement count
685 m_nMoveIncrement = 1;
686 }
687 break;
688 }
689 case MouseNotifyEvent::KEYUP:
690 {
691 const KeyEvent* pKeyEvent = rNEvt.GetKeyEvent();
692 const vcl::KeyCode& rCode = pKeyEvent->GetKeyCode();
693 sal_uInt16 nKeyCode = rCode.GetCode();
694 if ( rCode.IsMod2() && nKeyCode != KEY_UP && nKeyCode != KEY_DOWN && nKeyCode != KEY_LEFT && nKeyCode != KEY_RIGHT )
695 {
696 m_nMoveCount = 0; // reset our movement count
697 m_nMoveIncrement = 1;
698 }
699 break;
700 }
701 default:
702 break;
703 }
704 if (!bHandled)
705 return Window::PreNotify(rNEvt);
706 return true;
707}
708
709OUString OTableWindow::getTitle() const
710{
711 return m_xTitle->GetText();
712}
713
714void OTableWindow::_elementInserted( const container::ContainerEvent& /*_rEvent*/ )
715{
716 FillListBox();
717}
718
719void OTableWindow::_elementRemoved( const container::ContainerEvent& /*_rEvent*/ )
720{
721 FillListBox();
722}
723
724void OTableWindow::_elementReplaced( const container::ContainerEvent& /*_rEvent*/ )
725{
726 FillListBox();
727}
728
729/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
←

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

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

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

→
1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#ifndef INCLUDED_RTL_REF_HXX
21#define INCLUDED_RTL_REF_HXX
22
23#include "sal/config.h"
24
25#include <cassert>
26#include <cstddef>
27#include <functional>
28#ifdef LIBO_INTERNAL_ONLY1
29#include <type_traits>
30#endif
31
32#include "sal/types.h"
33
34namespace rtl
35{
36
37/** Template reference class for reference type.
38*/
39template <class reference_type>
40class Reference
41{
42 /** The <b>reference_type</b> body pointer.
43 */
44 reference_type * m_pBody;
45
46
47public:
48 /** Constructor...
49 */
50 Reference()
51 : m_pBody (NULL__null)
52 {}
53
54
55 /** Constructor...
56 */
57 Reference (reference_type * pBody, __sal_NoAcquire)
58 : m_pBody (pBody)
59 {
60 }
61
62 /** Constructor...
63 */
64 Reference (reference_type * pBody)
65 : m_pBody (pBody)
66 {
67 if (m_pBody)
68 m_pBody->acquire();
69 }
70
71 /** Copy constructor...
72 */
73 Reference (const Reference<reference_type> & handle)
74 : m_pBody (handle.m_pBody)
75 {
76 if (m_pBody)
5
←
Assuming field 'm_pBody' is non-null
→
6
←
Taking true branch
→
77 m_pBody->acquire();
78 }
79
80#ifdef LIBO_INTERNAL_ONLY1
81 /** Move constructor...
82 */
83 Reference (Reference<reference_type> && handle) noexcept
84 : m_pBody (handle.m_pBody)
85 {
86 handle.m_pBody = nullptr;
87 }
88#endif
89
90#if defined LIBO_INTERNAL_ONLY1
91 /** Up-casting conversion constructor: Copies interface reference.
92
93 Does not work for up-casts to ambiguous bases.
94
95 @param rRef another reference
96 */
97 template< class derived_type >
98 inline Reference(
99 const Reference< derived_type > & rRef,
100 std::enable_if_t<std::is_base_of_v<reference_type, derived_type>, int> = 0 )
101 : m_pBody (rRef.get())
102 {
103 if (m_pBody)
104 m_pBody->acquire();
105 }
106#endif
107
108 /** Destructor...
109 */
110 ~Reference() COVERITY_NOEXCEPT_FALSE
111 {
112 if (m_pBody)
113 m_pBody->release();
114 }
115
116 /** Set...
117 Similar to assignment.
118 */
119 Reference<reference_type> &
120 SAL_CALL set (reference_type * pBody)
121 {
122 if (pBody)
123 pBody->acquire();
124 reference_type * const pOld = m_pBody;
125 m_pBody = pBody;
126 if (pOld)
127 pOld->release();
128 return *this;
129 }
130
131 /** Assignment.
132 Unbinds this instance from its body (if bound) and
133 bind it to the body represented by the handle.
134 */
135 Reference<reference_type> &
136 SAL_CALL operator= (const Reference<reference_type> & handle)
137 {
138 return set( handle.m_pBody );
139 }
140
141#ifdef LIBO_INTERNAL_ONLY1
142 /** Assignment.
143 * Unbinds this instance from its body (if bound),
144 * bind it to the body represented by the handle, and
145 * set the body represented by the handle to nullptr.
146 */
147 Reference<reference_type> &
148 operator= (Reference<reference_type> && handle)
149 {
150 // self-movement guts ourself
151 if (m_pBody)
152 m_pBody->release();
153 m_pBody = handle.m_pBody;
154 handle.m_pBody = nullptr;
155 return *this;
156 }
157#endif
158
159 /** Assignment...
160 */
161 Reference<reference_type> &
162 SAL_CALL operator= (reference_type * pBody)
163 {
164 return set( pBody );
165 }
166
167 /** Unbind the body from this handle.
168 Note that for a handle representing a large body,
169 "handle.clear().set(new body());" _might_
170 perform a little bit better than "handle.set(new body());",
171 since in the second case two large objects exist in memory
172 (the old body and the new body).
173 */
174 Reference<reference_type> & SAL_CALL clear()
175 {
176 if (m_pBody
8.1
Field 'm_pBody' is non-null
8.1
Field 'm_pBody' is non-null
8.1
Field 'm_pBody' is non-null
8.1
Field 'm_pBody' is non-null
)
9
←
Taking true branch
→
177 {
178 reference_type * const pOld = m_pBody;
179 m_pBody = NULL__null;
180 pOld->release();
10
←
Calling 'VclReferenceBase::release'
→
14
←
Returning; memory was released
→
181 }
182 return *this;
183 }
184
185
186 /** Get the body. Can be used instead of operator->().
187 I.e. handle->someBodyOp() and handle.get()->someBodyOp()
188 are the same.
189 */
190 reference_type * SAL_CALL get() const
191 {
192 return m_pBody;
17
←
Use of memory after it is freed
193 }
194
195
196 /** Probably most common used: handle->someBodyOp().
197 */
198 reference_type * SAL_CALL operator->() const
199 {
200 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 200, __extension__ __PRETTY_FUNCTION__));
201 return m_pBody;
202 }
203
204
205 /** Allows (*handle).someBodyOp().
206 */
207 reference_type & SAL_CALL operator*() const
208 {
209 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 209, __extension__ __PRETTY_FUNCTION__));
210 return *m_pBody;
211 }
212
213
214 /** Returns True if the handle does point to a valid body.
215 */
216 bool SAL_CALL is() const
217 {
218 return (m_pBody != NULL__null);
219 }
220
221#if defined LIBO_INTERNAL_ONLY1
222 /** Returns True if the handle does point to a valid body.
223 */
224 explicit operator bool() const
225 {
226 return is();
227 }
228#endif
229
230 /** Returns True if this points to pBody.
231 */
232 bool SAL_CALL operator== (const reference_type * pBody) const
233 {
234 return (m_pBody == pBody);
235 }
236
237
238 /** Returns True if handle points to the same body.
239 */
240 bool
241 SAL_CALL operator== (const Reference<reference_type> & handle) const
242 {
243 return (m_pBody == handle.m_pBody);
244 }
245
246
247 /** Needed to place References into STL collection.
248 */
249 bool
250 SAL_CALL operator!= (const Reference<reference_type> & handle) const
251 {
252 return (m_pBody != handle.m_pBody);
253 }
254
255
256 /** Needed to place References into STL collection.
257 */
258 bool
259 SAL_CALL operator< (const Reference<reference_type> & handle) const
260 {
261 return (m_pBody < handle.m_pBody);
262 }
263
264
265 /** Needed to place References into STL collection.
266 */
267 bool
268 SAL_CALL operator> (const Reference<reference_type> & handle) const
269 {
270 return (m_pBody > handle.m_pBody);
271 }
272};
273
274} // namespace rtl
275
276#if defined LIBO_INTERNAL_ONLY1
277namespace std
278{
279
280/// @cond INTERNAL
281/**
282 Make rtl::Reference hashable by default for use in STL containers.
283
284 @since LibreOffice 6.3
285*/
286template<typename T>
287struct hash<::rtl::Reference<T>>
288{
289 std::size_t operator()(::rtl::Reference<T> const & s) const
290 { return std::size_t(s.get()); }
291};
292/// @endcond
293
294}
295
296#endif
297
298#endif /* ! INCLUDED_RTL_REF_HXX */
299
300/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
←

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

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