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Merge branch 'wxQt-memory-leaks' of https://github.com/catalinr/wxWidgets

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Fix many memory leaks in wxQt port.

See https://github.com/wxWidgets/wxWidgets/pull/1243
This commit is contained in:
Vadim Zeitlin
2019-03-05 23:36:41 +01:00
parent c2c3096530 6374aef924
commit d841f7b34e
13 changed files with 71 additions and 81 deletions
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2
include/wx/qt/accel.h
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@@ -43,7 +43,7 @@ public:
wxAcceleratorTable(int n, const wxAcceleratorEntry entries[]);
// Implementation
QList < QShortcut* > *ConvertShortcutTable( QWidget *parent ) const;
wxVector<QShortcut*> ConvertShortcutTable( QWidget *parent ) const;
bool Ok() const { return IsOk(); }
bool IsOk() const;

6
include/wx/qt/app.h
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@@ -9,6 +9,8 @@
#ifndef _WX_QT_APP_H_
#define _WX_QT_APP_H_
#include <wx/scopedarray.h>
class QApplication;
class WXDLLIMPEXP_CORE wxApp : public wxAppBase
{
@@ -19,9 +21,9 @@ public:
virtual bool Initialize(int& argc, wxChar **argv);
private:
QApplication *m_qtApplication;
wxScopedPtr<QApplication> m_qtApplication;
int m_qtArgc;
char **m_qtArgv;
wxScopedArray<char*> m_qtArgv;
wxDECLARE_DYNAMIC_CLASS_NO_COPY( wxApp );
};

2
include/wx/qt/statusbar.h
View File

@@ -45,7 +45,7 @@ private:
void UpdateFields();
QStatusBar *m_qtStatusBar;
QList< QLabel* > *m_qtPanes;
wxVector<QLabel*> m_qtPanes;
wxDECLARE_DYNAMIC_CLASS(wxStatusBar);
};

14
include/wx/qt/window.h
View File

@@ -216,24 +216,24 @@ protected:
private:
void Init();
QScrollArea *m_qtContainer;
QScrollArea *m_qtContainer; // either NULL or the same as m_qtWindow pointer
QScrollBar *m_horzScrollBar;
QScrollBar *m_vertScrollBar;
QScrollBar *m_horzScrollBar; // owned by m_qtWindow when allocated
QScrollBar *m_vertScrollBar; // owned by m_qtWindow when allocated
QScrollBar *QtGetScrollBar( int orientation ) const;
QScrollBar *QtSetScrollBar( int orientation, QScrollBar *scrollBar=NULL );
bool QtSetBackgroundStyle();
QPicture *m_qtPicture;
QPainter *m_qtPainter;
QPicture *m_qtPicture; // not owned
wxScopedPtr<QPainter> m_qtPainter; // always allocated
bool m_mouseInside;
#if wxUSE_ACCEL
QList< QShortcut* > *m_qtShortcuts;
wxQtShortcutHandler *m_qtShortcutHandler;
wxVector<QShortcut*> m_qtShortcuts; // owned by whatever GetHandle() returns
wxScopedPtr<wxQtShortcutHandler> m_qtShortcutHandler; // always allocated
bool m_processingShortcut;
#endif // wxUSE_ACCEL

1
samples/minimal/minimal.cpp
View File

@@ -170,6 +170,7 @@ MyFrame::MyFrame(const wxString& title)
wxButton* aboutBtn = new wxButton(this, wxID_ANY, "About...");
aboutBtn->Bind(wxEVT_BUTTON, &MyFrame::OnAbout, this);
sizer->Add(aboutBtn, wxSizerFlags().Center());
SetSizer(sizer);
#endif // wxUSE_MENUS/!wxUSE_MENUS
#if wxUSE_STATUSBAR

11
src/qt/accel.cpp
View File

@@ -82,16 +82,17 @@ wxAcceleratorTable::wxAcceleratorTable(int n, const wxAcceleratorEntry entries[]
}
}
QList< QShortcut* > *wxAcceleratorTable::ConvertShortcutTable( QWidget *parent ) const
wxVector<QShortcut*> wxAcceleratorTable::ConvertShortcutTable( QWidget *parent ) const
{
QList< QShortcut* > *qtList = new QList< QShortcut* >;
wxVector<QShortcut*> shortcuts;
for ( wxAccelList::compatibility_iterator node = M_ACCELDATA->m_accels.GetFirst(); node; node = node->GetNext() )
for ( wxAccelList::compatibility_iterator node = M_ACCELDATA->m_accels.GetFirst();
node; node = node->GetNext() )
{
qtList->push_back(ConvertAccelerator( node->GetData(), parent ));
shortcuts.push_back(ConvertAccelerator(node->GetData(), parent));
}
return qtList;
return shortcuts;
}
wxObjectRefData *wxAcceleratorTable::CreateRefData() const

13
src/qt/app.cpp
View File

@@ -19,19 +19,16 @@ wxIMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler);
wxApp::wxApp()
{
m_qtApplication = NULL;
m_qtArgc = 0;
m_qtArgv = NULL;
}
wxApp::~wxApp()
{
// Only delete if the app was actually initialized
if ( m_qtApplication != NULL )
// Delete command line arguments
for ( int i = 0; i < m_qtArgc; ++i )
{
m_qtApplication->deleteLater();
delete [] m_qtArgv;
delete m_qtArgv[i];
}
}
@@ -49,7 +46,7 @@ bool wxApp::Initialize( int &argc, wxChar **argv )
// TODO: Check whether new/strdup etc. can be replaced with std::vector<>.
// Clone and store arguments
m_qtArgv = new char *[argc + 1];
m_qtArgv.reset(new char* [argc + 1]);
for ( int i = 0; i < argc; i++ )
{
m_qtArgv[i] = wxStrdupA(wxConvUTF8.cWX2MB(argv[i]));
@@ -57,7 +54,7 @@ bool wxApp::Initialize( int &argc, wxChar **argv )
m_qtArgv[argc] = NULL;
m_qtArgc = argc;
m_qtApplication = new QApplication( m_qtArgc, m_qtArgv );
m_qtApplication.reset(new QApplication(m_qtArgc, m_qtArgv.get()));
// Use the args returned by Qt as it may have deleted (processed) some of them
// Using QApplication::arguments() forces argument processing

4
src/qt/choice.cpp
View File

@@ -20,6 +20,8 @@ namespace
class LexicalSortProxyModel : public QSortFilterProxyModel
{
public:
explicit LexicalSortProxyModel(QObject* owner) : QSortFilterProxyModel(owner) {}
bool lessThan( const QModelIndex &left, const QModelIndex &right ) const wxOVERRIDE
{
const QVariant leftData = sourceModel()->data( left );
@@ -77,7 +79,7 @@ wxChoice::wxChoice() :
void wxChoice::QtInitSort( QComboBox *combo )
{
QSortFilterProxyModel *proxyModel = new LexicalSortProxyModel();
QSortFilterProxyModel *proxyModel = new LexicalSortProxyModel(combo);
proxyModel->setSourceModel(combo->model());
combo->model()->setParent(proxyModel);
combo->setModel(proxyModel);

1
src/qt/dc.cpp
View File

@@ -49,6 +49,7 @@ wxQtDCImpl::wxQtDCImpl( wxDC *owner )
: wxDCImpl( owner )
{
m_qtPixmap = NULL;
m_qtPainter = NULL;
m_rasterColourOp = wxQtNONE;
m_qtPenColor = new QColor;
m_qtBrushColor = new QColor;

4
src/qt/dcclient.cpp
View File

@@ -90,8 +90,6 @@ wxIMPLEMENT_CLASS(wxClientDCImpl,wxWindowDCImpl);
wxClientDCImpl::wxClientDCImpl( wxDC *owner )
: wxWindowDCImpl( owner )
{
m_window = NULL;
m_qtPainter = NULL;
}
wxClientDCImpl::wxClientDCImpl( wxDC *owner, wxWindow *win )
@@ -99,8 +97,6 @@ wxClientDCImpl::wxClientDCImpl( wxDC *owner, wxWindow *win )
{
m_window = win;
m_qtPainter = new QPainter();
m_pict.reset(new QPicture());
m_ok = m_qtPainter->begin( m_pict.get() );

13
src/qt/menu.cpp
View File

@@ -88,6 +88,12 @@ static void InsertMenuItemAction( const wxMenu *menu, const wxMenuItem *previous
break;
case wxITEM_NORMAL:
{
// If the inserted action is a submenu, set the owner for the submenu.
if ( item->IsSubMenu() )
{
item->GetSubMenu()->GetHandle()->setParent(qtMenu, Qt::Popup);
}
wxWindowID id = item->GetId();
if ( wxIsStockID( id ) )
{
@@ -113,6 +119,9 @@ static void InsertMenuItemAction( const wxMenu *menu, const wxMenuItem *previous
// Insert the action into the actual menu:
QAction *successiveItemAction = ( successiveItem != NULL ) ? successiveItem->GetHandle() : NULL;
qtMenu->insertAction( successiveItemAction, itemAction );
// Menu items in Qt can be part of multiple menus, so a menu will not take ownership
// when one is added to it. Take it explicitly, otherwise it will create a memory leak.
itemAction->setParent(qtMenu);
}
wxMenuItem *wxMenu::DoAppend(wxMenuItem *item)
@@ -211,6 +220,9 @@ bool wxMenuBar::Append( wxMenu *menu, const wxString& title )
QMenu *qtMenu = SetTitle( menu, title );
m_qtMenuBar->addMenu( qtMenu );
// Menus in Qt can be reused as popups, so a menu bar will not take ownership when
// one is added to it. Take it explicitly, otherwise there will be a memory leak.
qtMenu->setParent(m_qtMenuBar, Qt::Popup); // must specify window type for correct display!
return true;
}
@@ -233,6 +245,7 @@ bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title)
QMenu *qtMenu = SetTitle( menu, title );
QAction *qtAction = GetActionAt( m_qtMenuBar, pos );
m_qtMenuBar->insertMenu( qtAction, qtMenu );
qtMenu->setParent(m_qtMenuBar, Qt::Popup); // must specify window type for correct display!
return true;
}

18
src/qt/statusbar.cpp
View File

@@ -48,7 +48,6 @@ bool wxStatusBar::Create(wxWindow *parent, wxWindowID WXUNUSED(winid),
long style, const wxString& WXUNUSED(name))
{
m_qtStatusBar = new wxQtStatusBar( parent, this );
m_qtPanes = new QList < QLabel* >;
if ( style & wxSTB_SIZEGRIP )
m_qtStatusBar->setSizeGripEnabled(true);
@@ -65,10 +64,10 @@ bool wxStatusBar::GetFieldRect(int i, wxRect& rect) const
wxCHECK_MSG( (i >= 0) && ((size_t)i < m_panes.GetCount()), false,
"invalid statusbar field index" );
if ( static_cast<size_t>(m_qtPanes->count()) != m_panes.GetCount() )
if ( m_qtPanes.size() != m_panes.GetCount() )
const_cast<wxStatusBar*>(this)->UpdateFields();
rect = wxQtConvertRect((*m_qtPanes)[i]->geometry());
rect = wxQtConvertRect(m_qtPanes[i]->geometry());
return true;
}
@@ -89,10 +88,10 @@ int wxStatusBar::GetBorderY() const
void wxStatusBar::DoUpdateStatusText(int number)
{
if ( static_cast<size_t>(m_qtPanes->count()) != m_panes.GetCount() )
if ( m_qtPanes.size() != m_panes.GetCount() )
UpdateFields();
(*m_qtPanes)[number]->setText( wxQtConvertString( m_panes[number].GetText() ) );
m_qtPanes[number]->setText( wxQtConvertString( m_panes[number].GetText() ) );
}
// Called each time number/size of panes changes
@@ -106,18 +105,19 @@ void wxStatusBar::Refresh( bool eraseBackground, const wxRect *rect )
void wxStatusBar::Init()
{
m_qtStatusBar = NULL;
m_qtPanes = NULL;
}
void wxStatusBar::UpdateFields()
{
// is it a good idea to recreate all the panes every update?
while ( !m_qtPanes->isEmpty() )
for ( wxVector<QLabel*>::const_iterator it = m_qtPanes.begin();
it != m_qtPanes.end(); ++it )
{
//Remove all panes
delete m_qtPanes->takeLast();
delete *it;
}
m_qtPanes.clear();
for (size_t i = 0; i < m_panes.GetCount(); i++)
{
@@ -125,7 +125,7 @@ void wxStatusBar::UpdateFields()
int width = m_panes[i].GetWidth();
QLabel *pane = new QLabel( m_qtStatusBar );
m_qtPanes->append( pane );
m_qtPanes.push_back(pane);
if ( width >= 0 )
{

61
src/qt/window.cpp
View File

@@ -211,19 +211,16 @@ void wxWindowQt::Init()
m_vertScrollBar = NULL;
m_qtPicture = NULL;
m_qtPainter = new QPainter();
m_qtPainter.reset(new QPainter());
m_mouseInside = false;
#if wxUSE_ACCEL
m_qtShortcutHandler = new wxQtShortcutHandler( this );
m_qtShortcutHandler.reset(new wxQtShortcutHandler(this));
m_processingShortcut = false;
m_qtShortcuts = NULL;
#endif
m_qtWindow = NULL;
m_qtContainer = NULL;
m_dropTarget = NULL;
}
wxWindowQt::wxWindowQt()
@@ -251,13 +248,6 @@ wxWindowQt::~wxWindowQt()
DestroyChildren(); // This also destroys scrollbars
delete m_qtPainter;
#if wxUSE_ACCEL
m_qtShortcutHandler->deleteLater();
delete m_qtShortcuts;
#endif
#if wxUSE_DRAG_AND_DROP
SetDropTarget(NULL);
#endif
@@ -266,23 +256,8 @@ wxWindowQt::~wxWindowQt()
if (m_qtWindow)
{
wxLogTrace(TRACE_QT_WINDOW, wxT("wxWindow::~wxWindow %s m_qtWindow=%p"), GetName(), m_qtWindow);
// Avoid sending further signals (i.e. if deleting the current page)
m_qtWindow->blockSignals(true);
// Reset the pointer to avoid handling pending event and signals
QtStoreWindowPointer( GetHandle(), NULL );
if ( m_horzScrollBar )
{
QtStoreWindowPointer( m_horzScrollBar, NULL );
m_horzScrollBar->deleteLater();
}
if ( m_vertScrollBar )
{
QtStoreWindowPointer( m_vertScrollBar, NULL );
m_vertScrollBar->deleteLater();
}
// Delete QWidget when control return to event loop (safer)
m_qtWindow->deleteLater();
m_qtWindow = NULL;
delete m_qtWindow;
}
else
{
@@ -622,6 +597,8 @@ QScrollBar *wxWindowQt::QtSetScrollBar( int orientation, QScrollBar *scrollBar )
void wxWindowQt::SetScrollbar( int orientation, int pos, int thumbvisible, int range, bool WXUNUSED(refresh) )
{
wxCHECK_RET(GetHandle(), "Window has not been created");
//If not exist, create the scrollbar
QScrollBar *scrollBar = QtGetScrollBar( orientation );
if ( scrollBar == NULL )
@@ -706,6 +683,7 @@ void wxWindowQt::SetDropTarget( wxDropTarget *dropTarget )
if ( m_dropTarget != NULL )
{
m_dropTarget->Disconnect();
delete m_dropTarget;
}
m_dropTarget = dropTarget;
@@ -1006,26 +984,25 @@ bool wxWindowQt::DoPopupMenu(wxMenu *menu, int x, int y)
#if wxUSE_ACCEL
void wxWindowQt::SetAcceleratorTable( const wxAcceleratorTable& accel )
{
wxCHECK_RET(GetHandle(), "Window has not been created");
wxWindowBase::SetAcceleratorTable( accel );
if ( m_qtShortcuts )
{
// Disable previously set accelerators
while ( !m_qtShortcuts->isEmpty() )
delete m_qtShortcuts->takeFirst();
// Create new shortcuts (use GetHandle() so all events inside
// the window are handled, not only in the container subwindow)
delete m_qtShortcuts;
for ( wxVector<QShortcut*>::const_iterator it = m_qtShortcuts.begin();
it != m_qtShortcuts.end(); ++it )
{
delete *it;
}
m_qtShortcuts = accel.ConvertShortcutTable(GetHandle());
// Connect shortcuts to window
Q_FOREACH( QShortcut *s, *m_qtShortcuts )
for ( wxVector<QShortcut*>::const_iterator it = m_qtShortcuts.begin();
it != m_qtShortcuts.end(); ++it )
{
QObject::connect( s, &QShortcut::activated, m_qtShortcutHandler, &wxQtShortcutHandler::activated );
QObject::connect( s, &QShortcut::activatedAmbiguously, m_qtShortcutHandler, &wxQtShortcutHandler::activated );
QObject::connect( *it, &QShortcut::activated, m_qtShortcutHandler.get(), &wxQtShortcutHandler::activated );
QObject::connect( *it, &QShortcut::activatedAmbiguously, m_qtShortcutHandler.get(), &wxQtShortcutHandler::activated );
}
}
#endif // wxUSE_ACCEL
@@ -1191,7 +1168,7 @@ bool wxWindowQt::QtHandlePaintEvent ( QWidget *handler, QPaintEvent *event )
else
{
// Data from wxClientDC, paint it
m_qtPicture->play( m_qtPainter );
m_qtPicture->play( m_qtPainter.get() );
// Reset picture
m_qtPicture->setData( NULL, 0 );
handled = true;
@@ -1574,5 +1551,5 @@ void wxWindowQt::QtSetPicture( QPicture* pict )
QPainter *wxWindowQt::QtGetPainter()
{
return m_qtPainter;
return m_qtPainter.get();
}