C++ destroyed函数代码示例

QWidget* PathChooserDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &) const
{
    QTreeWidgetItem *item = tree_->currentItem();
    if (!item) {
        return NULL;
    }
    path_item_ = item;

    path_editor_ = new QWidget(parent);
    QHBoxLayout *hbox = new QHBoxLayout(path_editor_);
    path_editor_->setLayout(hbox);
    path_le_ = new QLineEdit(path_editor_);
    QPushButton *pb = new QPushButton(path_editor_);

    path_le_->setText(item->text(col_p_pipe_));
    pb->setText(QString(tr("Browse" UTF8_HORIZONTAL_ELLIPSIS)));

    hbox->setContentsMargins(0, 0, 0, 0);
    hbox->addWidget(path_le_);
    hbox->addWidget(pb);
    hbox->setSizeConstraint(QLayout::SetMinimumSize);

    // Grow the item to match the editor. According to the QAbstractItemDelegate
    // documenation we're supposed to reimplement sizeHint but this seems to work.
    QSize size = option.rect.size();
    size.setHeight(qMax(option.rect.height(), hbox->sizeHint().height()));
    item->setData(col_p_pipe_, Qt::SizeHintRole, size);

    path_le_->selectAll();
    path_editor_->setFocusProxy(path_le_);
    path_editor_->setFocusPolicy(path_le_->focusPolicy());

    connect(path_le_, SIGNAL(destroyed()), this, SLOT(stopEditor()));
    connect(pb, SIGNAL(pressed()), this, SLOT(browse_button_clicked()));
    return path_editor_;
}

void Scene_polylines_item::change_corner_radii(double r) {
    if(r >= 0) {
        d->spheres_drawn_radius = r;
        d->draw_extremities = (r > 0);
        if(r>0 && !spheres)
        {
          spheres = new Scene_spheres_item(this, false);
          spheres->setName("Corner spheres");
          spheres->setRenderingMode(Gouraud);
          connect(spheres, SIGNAL(destroyed()), this, SLOT(reset_spheres()));
          scene->addItem(spheres);
          scene->changeGroup(spheres, this);
          lockChild(spheres);
          computeSpheres();
          spheres->invalidateOpenGLBuffers();
        }
        else if (r<=0 && spheres!=NULL)
        {
          unlockChild(spheres);
          scene->erase(scene->item_id(spheres));
        }
    Q_EMIT itemChanged();
    }
}

void tst_QPluginLoader::reloadPlugin()
{
    QPluginLoader loader;
    loader.setFileName( sys_qualifiedLibraryName("theplugin"));     //a plugin
    loader.load(); // not recommended, instance() should do the job.
    PluginInterface *instance = qobject_cast<PluginInterface*>(loader.instance());
    QVERIFY(instance);
    QCOMPARE(instance->pluginName(), QLatin1String("Plugin ok"));

    QSignalSpy spy(loader.instance(), SIGNAL(destroyed()));
    QVERIFY(spy.isValid());
    QVERIFY(loader.unload());   // refcount reached 0, did really unload
    QCOMPARE(spy.count(), 1);

    // reload plugin
    QVERIFY(loader.load());
    QVERIFY(loader.isLoaded());

    PluginInterface *instance2 = qobject_cast<PluginInterface*>(loader.instance());
    QVERIFY(instance2);
    QCOMPARE(instance2->pluginName(), QLatin1String("Plugin ok"));

    QVERIFY(loader.unload());
}

void KBinaryClock::toggleCalendar()
{
	if (_calendar && !_disableCalendar) {
		// calls slotCalendarDeleted which does the cleanup for us
		_calendar->close();
		return;
	}
	if (_calendar || _disableCalendar){
		return;
	}
	_calendar = new DatePicker(this, QDateTime::currentDateTime().date());
	connect( _calendar, SIGNAL( destroyed() ), SLOT( slotCalendarDeleted() ));

	// some extra spacing is included if aligned on a desktop edge
	QPoint c = mapToGlobal(QPoint(0,0));

	int w = _calendar->sizeHint().width() + 28;
															// Added 28 px. to size poperly as said in API
	int h = _calendar->sizeHint().height();

	switch (position()) {
	case KPanelApplet::pLeft:	c.setX(c.x()+width()+2);	break;
	case KPanelApplet::pRight:	c.setX(c.x()-w-2);		break;
	case KPanelApplet::pTop:	c.setY(c.y()+height()+2);	break;
	case KPanelApplet::pBottom:	c.setY(c.y()-h-2);		break;
		}

		// make calendar fully visible
		QRect deskR = KGlobalSettings::desktopGeometry(QPoint(0,0));

		if (c.y()+h > deskR.bottom())	c.setY(deskR.bottom()-h-1);
		if (c.x()+w > deskR.right())				c.setX(deskR.right()-w-1);

		_calendar->move(c);
		_calendar->show();
}

void FindReplaceDialog::setExtendedScintilla(ExtendedScintilla* scintilla)
{
    m_scintilla = scintilla;

    // Create indicator for find-all and replace-all occurrences
    foundIndicatorNumber = m_scintilla->indicatorDefine(QsciScintilla::StraightBoxIndicator);
    m_scintilla->setIndicatorForegroundColor(Qt::magenta, foundIndicatorNumber);
    m_scintilla->setIndicatorDrawUnder(true, foundIndicatorNumber);

    bool isWriteable = ! m_scintilla->isReadOnly();
    ui->replaceWithText->setEnabled(isWriteable);
    ui->replaceButton->setEnabled(isWriteable);
    ui->replaceAllButton->setEnabled(isWriteable);

    connect(m_scintilla, SIGNAL(destroyed()), this, SLOT(hide()));
    connect(ui->findText, SIGNAL(editingFinished()), this, SLOT(cancelFind()));
    connect(ui->regexpCheckBox, &QCheckBox::toggled, this, &FindReplaceDialog::cancelFind);
    connect(ui->caseCheckBox, &QCheckBox::toggled, this, &FindReplaceDialog::cancelFind);
    connect(ui->wholeWordsCheckBox, &QCheckBox::toggled, this, &FindReplaceDialog::cancelFind);
    connect(ui->wrapCheckBox, &QCheckBox::toggled, this, &FindReplaceDialog::cancelFind);
    connect(ui->backwardsCheckBox, &QCheckBox::toggled, this, &FindReplaceDialog::cancelFind);
    connect(ui->selectionCheckBox, &QCheckBox::toggled, this, &FindReplaceDialog::cancelFind);
    connect(ui->selectionCheckBox, &QCheckBox::toggled, ui->wrapCheckBox, &QCheckBox::setDisabled);
}

void SongLoaderInserter::Load(Playlist* destination, int row, bool play_now,
                              bool enqueue, const QList<QUrl>& urls) {
  destination_ = destination;
  row_ = row;
  play_now_ = play_now;
  enqueue_ = enqueue;

  connect(destination, SIGNAL(destroyed()), SLOT(DestinationDestroyed()));
  connect(this, SIGNAL(PreloadFinished()), SLOT(InsertSongs()));
  connect(this, SIGNAL(EffectiveLoadFinished(const SongList&)), destination,
          SLOT(UpdateItems(const SongList&)));

  for (const QUrl& url : urls) {
    SongLoader* loader = new SongLoader(library_, player_, this);

    SongLoader::Result ret = loader->Load(url);

    if (ret == SongLoader::BlockingLoadRequired) {
      pending_.append(loader);
      continue;
    }

    if (ret == SongLoader::Success)
      songs_ << loader->songs();
    else
      emit Error(tr("Error loading %1").arg(url.toString()));
    delete loader;
  }

  if (pending_.isEmpty()) {
    InsertSongs();
    deleteLater();
  } else {
    QtConcurrent::run(this, &SongLoaderInserter::AsyncLoad);
  }
}

void NetworkAccessManager::handleAuthenticationRequired(QNetworkReply *reply, QAuthenticator *authenticator)
{
	if (m_widget)
	{
		AuthenticationDialog *authenticationDialog = new AuthenticationDialog(reply->url(), authenticator, m_widget);
		authenticationDialog->setButtonsVisible(false);

		ContentsDialog dialog(Utils::getIcon(QLatin1String("dialog-password")), authenticationDialog->windowTitle(), QString(), QString(), (QDialogButtonBox::Ok | QDialogButtonBox::Cancel), authenticationDialog, m_widget);

		connect(&dialog, SIGNAL(accepted()), authenticationDialog, SLOT(accept()));

		QEventLoop eventLoop;

		m_widget->showDialog(&dialog);

		connect(&dialog, SIGNAL(closed(bool,QDialogButtonBox::StandardButton)), &eventLoop, SLOT(quit()));
		connect(this, SIGNAL(destroyed()), &eventLoop, SLOT(quit()));

		eventLoop.exec();

		m_widget->hideDialog(&dialog);
	}
	else
	{

void medViewContainer::setView(medAbstractView *view)
{
    if(d->view)
    {
        d->view->viewWidget()->hide();
        this->removeInternView();
    }
    if(view)
    {
        d->view = view;
        connect(d->view, SIGNAL(destroyed()), this, SLOT(removeInternView()));
        connect(d->view, SIGNAL(selectedRequest(bool)), this, SLOT(setSelected(bool)));

        if(medAbstractLayeredView* layeredView = dynamic_cast<medAbstractLayeredView*>(view))
        {
            connect(layeredView, SIGNAL(currentLayerChanged()), this, SIGNAL(currentLayerChanged()));
            connect(layeredView, SIGNAL(currentLayerChanged()), this, SLOT(updateToolBar()));
            connect(layeredView, SIGNAL(layerAdded(uint)), this, SIGNAL(viewContentChanged()));
            connect(layeredView, SIGNAL(layerRemoved(uint)), this, SIGNAL(viewContentChanged()));
        }

        if (medAbstractImageView* imageView = dynamic_cast <medAbstractImageView*> (view))
        {
            if (!d->userSplittable)
                imageView->fourViewsParameter()->hide();
        }
        
        d->maximizedAction->setEnabled(true);
        d->defaultWidget->hide();
        d->mainLayout->addWidget(d->view->viewWidget(), 2, 0, 1, 1);
        d->view->viewWidget()->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::MinimumExpanding);
        d->view->viewWidget()->show();

        emit viewChanged();
    }
}

/*!
  \internal

  Creates a new script in \a project with the name \a name,
  context \a context and code \a code.
*/
QSScript::QSScript(QSProject *project,
                   const QString &name,
                   const QString &code,
                   QObject *context)
  :
  QObject(project, name.local8Bit())
{
  d = new QSScriptPrivate;
#ifndef AQ_ENABLE_SCRIPTCACHE
  d->code = code;
#else
  d->code = aqSha1(code);
  aqDiskCacheInsert(d->code, code);
#endif

  d->name = name;
  d->project = project;

  if (context) {
    d->context = context;
    connect(context, SIGNAL(destroyed()),
            this, SLOT(objectDestroyed()));
  }
}

void PukeController::insertPObject(int fd, int iWinId, WidgetS *obj){ /*FOLD00*/
  // If no widget list exists for this fd, create one
  if(WidgetList[fd] == NULL){
    QIntDict<WidgetS> *qidWS = new("QIntDict<WidgetS>") QIntDict<WidgetS>;
    qidWS->setAutoDelete(TRUE);
    WidgetList.insert(fd, qidWS);
  }
  // Set main widget structure list
  WidgetList[fd]->insert(iWinId, obj);

  // Set reverse list used durring delete to remove the widget
  widgetId *pwi = new("widgetId") widgetId;
  pwi->fd = fd;
  pwi->iWinId = iWinId;
  char key[keySize];
  memset(key, 0, keySize);
  sprintf(key, "%p", obj->pwidget);
  revWidgetList.insert(key, pwi);

  // Now connect to the destroyed signal so we can remove the object from the lists
  // Once it is deleted
  connect(obj->pwidget, SIGNAL(destroyed()),
          this, SLOT(pobjectDestroyed()));
}

Bus::~Bus()
{
  emit destroyed();
}

//!
//! Destructor of the ClusteringLayouterNode class.
//!
//! Defined virtual to guarantee that the destructor of a derived class
//! will be called if the instance of the derived class is saved in a
//! variable of its parent class type.
//!
ClusteringLayouterNode::~ClusteringLayouterNode ()
{
	emit destroyed();
    DEC_INSTANCE_COUNTER
    Log::info(QString("ClusteringLayouterNode destroyed."), "ClusteringLayouterNode::~ClusteringLayouterNode");
}

QgsAttributeTableDialog::QgsAttributeTableDialog( QgsVectorLayer *theLayer, QWidget *parent, Qt::WindowFlags flags )
    : QDialog( parent, flags ), mDock( NULL )
{
  mLayer = theLayer;

  setupUi( this );

  setAttribute( Qt::WA_DeleteOnClose );

  QSettings settings;
  restoreGeometry( settings.value( "/Windows/BetterAttributeTable/geometry" ).toByteArray() );

  mView->setLayer( mLayer );
  mFilterModel = ( QgsAttributeTableFilterModel * ) mView->model();
  mModel = ( QgsAttributeTableModel * )(( QgsAttributeTableFilterModel * )mView->model() )->sourceModel();

  mQuery = query;
  mColumnBox = columnBox;
  columnBoxInit();

  bool myDockFlag = settings.value( "/qgis/dockAttributeTable", false ).toBool();
  if ( myDockFlag )
  {
    mDock = new QgsAttributeTableDock( tr( "Attribute table - %1 (%n Feature(s))", "feature count", mModel->rowCount() ).arg( mLayer->name() ), QgisApp::instance() );
    mDock->setAllowedAreas( Qt::BottomDockWidgetArea | Qt::TopDockWidgetArea );
    mDock->setWidget( this );
    connect( this, SIGNAL( destroyed() ), mDock, SLOT( close() ) );
    QgisApp::instance()->addDockWidget( Qt::BottomDockWidgetArea, mDock );
  }

  updateTitle();

  mRemoveSelectionButton->setIcon( QgisApp::getThemeIcon( "/mActionUnselectAttributes.png" ) );
  mSelectedToTopButton->setIcon( QgisApp::getThemeIcon( "/mActionSelectedToTop.png" ) );
  mCopySelectedRowsButton->setIcon( QgisApp::getThemeIcon( "/mActionCopySelected.png" ) );
  mZoomMapToSelectedRowsButton->setIcon( QgisApp::getThemeIcon( "/mActionZoomToSelected.png" ) );
  mInvertSelectionButton->setIcon( QgisApp::getThemeIcon( "/mActionInvertSelection.png" ) );
  mToggleEditingButton->setIcon( QgisApp::getThemeIcon( "/mActionToggleEditing.png" ) );
  mSaveEditsButton->setIcon( QgisApp::getThemeIcon( "/mActionSaveEdits.png" ) );
  mDeleteSelectedButton->setIcon( QgisApp::getThemeIcon( "/mActionDeleteSelected.png" ) );
  mOpenFieldCalculator->setIcon( QgisApp::getThemeIcon( "/mActionCalculateField.png" ) );
  mAddAttribute->setIcon( QgisApp::getThemeIcon( "/mActionNewAttribute.png" ) );
  mRemoveAttribute->setIcon( QgisApp::getThemeIcon( "/mActionDeleteAttribute.png" ) );

  // toggle editing
  bool canChangeAttributes = mLayer->dataProvider()->capabilities() & QgsVectorDataProvider::ChangeAttributeValues;
  bool canDeleteFeatures = mLayer->dataProvider()->capabilities() & QgsVectorDataProvider::DeleteFeatures;
  bool canAddAttributes = mLayer->dataProvider()->capabilities() & QgsVectorDataProvider::AddAttributes;
  bool canDeleteAttributes = mLayer->dataProvider()->capabilities() & QgsVectorDataProvider::DeleteAttributes;
  bool canAddFeatures = mLayer->dataProvider()->capabilities() & QgsVectorDataProvider::AddFeatures;

  mToggleEditingButton->setCheckable( true );
  mToggleEditingButton->setChecked( mLayer->isEditable() );
  mToggleEditingButton->setEnabled( canChangeAttributes && !mLayer->isReadOnly() );

  mSaveEditsButton->setEnabled( canChangeAttributes && mLayer->isEditable() );
  mOpenFieldCalculator->setEnabled( canChangeAttributes && mLayer->isEditable() );
  mDeleteSelectedButton->setEnabled( canDeleteFeatures && mLayer->isEditable() );
  mAddAttribute->setEnabled( canAddAttributes && mLayer->isEditable() );
  mRemoveAttribute->setEnabled( canDeleteAttributes && mLayer->isEditable() );
  mAddFeature->setEnabled( canAddFeatures && mLayer->isEditable() && mLayer->geometryType() == QGis::NoGeometry );
  mAddFeature->setHidden( !canAddFeatures || mLayer->geometryType() != QGis::NoGeometry );

  // info from table to application
  connect( this, SIGNAL( editingToggled( QgsMapLayer * ) ), QgisApp::instance(), SLOT( toggleEditing( QgsMapLayer * ) ) );
  connect( this, SIGNAL( saveEdits( QgsMapLayer * ) ), QgisApp::instance(), SLOT( saveEdits( QgsMapLayer * ) ) );

  // info from layer to table
  connect( mLayer, SIGNAL( editingStarted() ), this, SLOT( editingToggled() ) );
  connect( mLayer, SIGNAL( editingStopped() ), this, SLOT( editingToggled() ) );

  connect( searchButton, SIGNAL( clicked() ), this, SLOT( search() ) );
  connect( mAddFeature, SIGNAL( clicked() ), this, SLOT( addFeature() ) );

  connect( mLayer, SIGNAL( selectionChanged() ), this, SLOT( updateSelectionFromLayer() ) );
  connect( mLayer, SIGNAL( layerDeleted() ), this, SLOT( close() ) );
  connect( mView->verticalHeader(), SIGNAL( sectionClicked( int ) ), this, SLOT( updateRowSelection( int ) ) );
  connect( mView->verticalHeader(), SIGNAL( sectionPressed( int ) ), this, SLOT( updateRowPressed( int ) ) );
  connect( mModel, SIGNAL( modelChanged() ), this, SLOT( updateSelection() ) );

  if ( settings.value( "/qgis/attributeTableBehaviour", 0 ).toInt() == 2 )
  {
    connect( QgisApp::instance()->mapCanvas(), SIGNAL( extentsChanged() ), mModel, SLOT( layerModified() ) );
  }

  mLastClickedHeaderIndex = 0;
  mSelectionModel = new QItemSelectionModel( mFilterModel );
  updateSelectionFromLayer();

  //make sure to show all recs on first load
  on_cbxShowSelectedOnly_toggled( false );
}

YTLocalVideoData::~YTLocalVideoData()
{
    Q_ASSERT(_videoFile.isNull());
    Q_ASSERT(_status != YTLocalVideo::Loading);
    emit destroyed(_videoId);
}

BufferView::~BufferView()
{
    emit destroyed(this);
}