File indexing completed on 2024-04-28 03:59:13

 /*
     This file is part of the KDE libraries
     SPDX-FileCopyrightText: 1999 Reginald Stadlbauer <reggie@kde.org>
     SPDX-FileCopyrightText: 1999 Simon Hausmann <hausmann@kde.org>
     SPDX-FileCopyrightText: 2000 Nicolas Hadacek <haadcek@kde.org>
     SPDX-FileCopyrightText: 2000 Kurt Granroth <granroth@kde.org>
     SPDX-FileCopyrightText: 2000 Michael Koch <koch@kde.org>
     SPDX-FileCopyrightText: 2001 Holger Freyther <freyther@kde.org>
     SPDX-FileCopyrightText: 2002 Ellis Whitehead <ellis@kde.org>
     SPDX-FileCopyrightText: 2002 Joseph Wenninger <jowenn@kde.org>
     SPDX-FileCopyrightText: 2003 Andras Mantia <amantia@kde.org>
     SPDX-FileCopyrightText: 2005-2006 Hamish Rodda <rodda@kde.org>
     SPDX-FileCopyrightText: 2006 Albert Astals Cid <aacid@kde.org>
     SPDX-FileCopyrightText: 2006 Clarence Dang <dang@kde.org>
     SPDX-FileCopyrightText: 2006 Michel Hermier <michel.hermier@gmail.com>
     SPDX-FileCopyrightText: 2007 Nick Shaforostoff <shafff@ukr.net>
 
     SPDX-License-Identifier: LGPL-2.0-only
 */
 
 #include "kselectaction.h"
 #include "kselectaction_p.h"
 
 #include "loggingcategory.h"
 
 #include <QActionEvent>
 #include <QEvent>
 #include <QMenu>
 #include <QStandardItem>
 #include <QToolBar>
 
 // QAction::setText("Hi") and then KPopupAccelManager exec'ing, causes
 // QAction::text() to return "&Hi" :(  Comboboxes don't have accels and
 // display ampersands literally.
 static QString DropAmpersands(const QString &text)
 {
     QString label = text;
 
     int p = label.indexOf(QLatin1Char('&'));
     while (p >= 0 && p < label.length() - 1) {
         if (label[p + 1].isLetterOrNumber() // Valid accelerator.
             || label[p + 1] == QLatin1Char('&')) { // Escaped accelerator marker.
             label.remove(p, 1);
         }
 
         p = label.indexOf(QLatin1Char('&'), p + 1);
     }
 
     return label;
 }
 
 KSelectAction::KSelectAction(QObject *parent)
     : KSelectAction(*new KSelectActionPrivate(this), parent)
 {
 }
 
 KSelectAction::KSelectAction(const QString &text, QObject *parent)
     : KSelectAction(*new KSelectActionPrivate(this), parent)
 {
     setText(text);
 }
 
 KSelectAction::KSelectAction(const QIcon &icon, const QString &text, QObject *parent)
     : KSelectAction(*new KSelectActionPrivate(this), parent)
 {
     setIcon(icon);
     setText(text);
 }
 
 KSelectAction::KSelectAction(KSelectActionPrivate &dd, QObject *parent)
     : QWidgetAction(parent)
     , d_ptr(&dd)
 {
     Q_D(KSelectAction);
     d->init();
 }
 
 KSelectAction::~KSelectAction()
 {
     menu()->deleteLater();
 }
 
 void KSelectActionPrivate::init()
 {
     QObject::connect(q_ptr->selectableActionGroup(), &QActionGroup::triggered, q_ptr, &KSelectAction::slotActionTriggered);
     QObject::connect(q_ptr, &QAction::toggled, q_ptr, &KSelectAction::slotToggled);
     q_ptr->setMenu(new QMenu());
     q_ptr->setEnabled(false);
 }
 
 QActionGroup *KSelectAction::selectableActionGroup() const
 {
     Q_D(const KSelectAction);
     return d->m_actionGroup;
 }
 
 QList<QAction *> KSelectAction::actions() const
 {
     return selectableActionGroup()->actions();
 }
 
 QAction *KSelectAction::currentAction() const
 {
     return selectableActionGroup()->checkedAction();
 }
 
 int KSelectAction::currentItem() const
 {
     return selectableActionGroup()->actions().indexOf(currentAction());
 }
 
 QString KSelectAction::currentText() const
 {
     if (QAction *a = currentAction()) {
         return ::DropAmpersands(a->text());
     }
 
     return QString();
 }
 
 bool KSelectAction::setCurrentAction(QAction *action)
 {
     // qCDebug(KWidgetsAddonsLog) << "KSelectAction::setCurrentAction(" << action << ")";
     if (action) {
         if (actions().contains(action)) {
             if (action->isVisible() && action->isEnabled() && action->isCheckable()) {
                 action->setChecked(true);
                 if (isCheckable()) {
                     setChecked(true);
                 }
                 return true;
             } else {
                 qCWarning(KWidgetsAddonsLog) << "Action does not have the correct properties to be current:" << action->text();
             }
         } else {
             qCWarning(KWidgetsAddonsLog) << "Action does not belong to group:" << action->text();
         }
         return false;
     }
 
     if (currentAction()) {
         currentAction()->setChecked(false);
     }
 
     return false;
 }
 
 bool KSelectAction::setCurrentItem(int index)
 {
     // qCDebug(KWidgetsAddonsLog) << "KSelectAction::setCurrentIndex(" << index << ")";
     return setCurrentAction(action(index));
 }
 
 QAction *KSelectAction::action(int index) const
 {
     if (index >= 0 && index < selectableActionGroup()->actions().count()) {
         return selectableActionGroup()->actions().at(index);
     }
 
     return nullptr;
 }
 
 QAction *KSelectAction::action(const QString &text, Qt::CaseSensitivity cs) const
 {
     QString compare;
     if (cs == Qt::CaseSensitive) {
         compare = text;
     } else {
         compare = text.toLower();
     }
 
     const auto selectableActions = selectableActionGroup()->actions();
     for (QAction *action : selectableActions) {
         const QString text = ::DropAmpersands(action->text());
         if (cs == Qt::CaseSensitive) {
             if (text == compare) {
                 return action;
             }
 
         } else if (cs == Qt::CaseInsensitive) {
             if (text.toLower() == compare) {
                 return action;
             }
         }
     }
 
     return nullptr;
 }
 
 bool KSelectAction::setCurrentAction(const QString &text, Qt::CaseSensitivity cs)
 {
     // qCDebug(KWidgetsAddonsLog) << "KSelectAction::setCurrentAction(" << text << ",cs=" << cs << ")";
     return setCurrentAction(action(text, cs));
 }
 
 void KSelectAction::setComboWidth(int width)
 {
     Q_D(KSelectAction);
     if (width < 0) {
         return;
     }
 
     d->m_comboWidth = width;
 
     for (QComboBox *box : std::as_const(d->m_comboBoxes)) {
         box->setMaximumWidth(d->m_comboWidth);
     }
 
     Q_EMIT changed();
 }
 
 void KSelectAction::setMaxComboViewCount(int n)
 {
     Q_D(KSelectAction);
     d->m_maxComboViewCount = n;
 
     for (QComboBox *box : std::as_const(d->m_comboBoxes)) {
         if (d->m_maxComboViewCount != -1) {
             box->setMaxVisibleItems(d->m_maxComboViewCount);
         } else
         // hardcoded qt default
         {
             box->setMaxVisibleItems(10);
         }
     }
 
     Q_EMIT changed();
 }
 
 void KSelectAction::addAction(QAction *action)
 {
     insertAction(nullptr, action);
 }
 
 QAction *KSelectAction::addAction(const QString &text)
 {
     Q_D(KSelectAction);
     QAction *newAction = new QAction(parent());
     newAction->setText(text);
     newAction->setCheckable(true);
     newAction->setProperty("isShortcutConfigurable", false);
 
     if (!d->m_menuAccelsEnabled) {
         newAction->setText(text);
         newAction->setShortcut(QKeySequence());
     }
 
     addAction(newAction);
     return newAction;
 }
 
 QAction *KSelectAction::addAction(const QIcon &icon, const QString &text)
 {
     QAction *newAction = addAction(text);
     newAction->setIcon(icon);
     return newAction;
 }
 
 QAction *KSelectAction::removeAction(QAction *action)
 {
     Q_D(KSelectAction);
     // qCDebug(KWidgetsAddonsLog) << "KSelectAction::removeAction(" << action << ")";
     // int index = selectableActionGroup()->actions().indexOf(action);
     // qCDebug(KWidgetsAddonsLog) << "\tindex=" << index;
 
     // Removes the action from the group and sets its parent to null.
     d->m_actionGroup->removeAction(action);
 
     // Disable when no action is in the group
     bool hasActions = selectableActionGroup()->actions().isEmpty();
     setEnabled(!hasActions);
 
     for (QToolButton *button : std::as_const(d->m_buttons)) {
         button->setEnabled(!hasActions);
         button->removeAction(action);
     }
 
     for (QComboBox *comboBox : std::as_const(d->m_comboBoxes)) {
         comboBox->setEnabled(!hasActions);
         comboBox->removeAction(action);
     }
 
     menu()->removeAction(action);
 
     return action;
 }
 
 void KSelectAction::insertAction(QAction *before, QAction *action)
 {
     Q_D(KSelectAction);
     action->setActionGroup(selectableActionGroup());
 
     // Re-Enable when an action is added
     setEnabled(true);
 
     // Keep in sync with createToolBarWidget()
     for (QToolButton *button : std::as_const(d->m_buttons)) {
         button->setEnabled(true);
         button->insertAction(before, action);
     }
 
     for (QComboBox *comboBox : std::as_const(d->m_comboBoxes)) {
         comboBox->setEnabled(true);
         comboBox->insertAction(before, action);
     }
 
     menu()->insertAction(before, action);
 }
 
 void KSelectAction::slotActionTriggered(QAction *action)
 {
     // cache values so we don't need access to members in the action
     // after we've done an emit()
     const QString text = ::DropAmpersands(action->text());
     const int index = selectableActionGroup()->actions().indexOf(action);
     // qCDebug(KWidgetsAddonsLog) << "KSelectAction::slotActionTriggered(" << action << ") text=" << text
     //          << " index=" << index  << " emitting triggered()" << endl;
 
     if (isCheckable()) { // if this is subsidiary of other KSelectAction-derived class
         trigger(); // then imitate usual QAction behaviour so that other submenus (and their items) become unchecked
     }
 
     Q_EMIT actionTriggered(action);
     Q_EMIT indexTriggered(index);
     Q_EMIT textTriggered(text);
 }
 
 QStringList KSelectAction::items() const
 {
     Q_D(const KSelectAction);
     QStringList ret;
 
     const auto actions = d->m_actionGroup->actions();
     ret.reserve(actions.size());
     for (QAction *action : actions) {
         ret << ::DropAmpersands(action->text());
     }
 
     return ret;
 }
 
 void KSelectAction::changeItem(int index, const QString &text)
 {
     Q_D(KSelectAction);
     if (index < 0 || index >= actions().count()) {
         qCWarning(KWidgetsAddonsLog) << "KSelectAction::changeItem Index out of scope";
         return;
     }
 
     actions()[index]->setText(d->makeMenuText(text));
 }
 
 void KSelectAction::setItems(const QStringList &lst)
 {
     Q_D(KSelectAction);
     // qCDebug(KWidgetsAddonsLog) << "KSelectAction::setItems(" << lst << ")";
 
     clear();
 
     for (const QString &string : lst) {
         if (!string.isEmpty()) {
             addAction(string);
         } else {
             QAction *action = new QAction(this);
             action->setSeparator(true);
             addAction(action);
         }
     }
 
     // Disable if empty and not editable
     setEnabled(lst.count() > 0 || d->m_edit);
 }
 
 int KSelectAction::comboWidth() const
 {
     Q_D(const KSelectAction);
     return d->m_comboWidth;
 }
 
 void KSelectAction::clear()
 {
     Q_D(KSelectAction);
     // qCDebug(KWidgetsAddonsLog) << "KSelectAction::clear()";
 
     // we need to delete the actions later since we may get a call to clear()
     // from a method called due to a triggered(...) signal
     const QList<QAction *> actions = d->m_actionGroup->actions();
     for (int i = 0; i < actions.count(); ++i) {
         // deleteLater() only removes us from the actions() list (among
         // other things) on the next entry into the event loop.  Until then,
         // e.g. action() and setCurrentItem() will be working on items
         // that are supposed to have been deleted.  So detach the action to
         // prevent this from happening.
         removeAction(actions[i]);
 
         actions[i]->deleteLater();
     }
 }
 
 void KSelectAction::removeAllActions()
 {
     Q_D(KSelectAction);
     while (d->m_actionGroup->actions().count()) {
         removeAction(d->m_actionGroup->actions().first());
     }
 }
 
 void KSelectAction::setEditable(bool edit)
 {
     Q_D(KSelectAction);
     d->m_edit = edit;
 
     for (QComboBox *comboBox : std::as_const(d->m_comboBoxes)) {
         comboBox->setEditable(edit);
     }
 
     Q_EMIT changed();
 }
 
 bool KSelectAction::isEditable() const
 {
     Q_D(const KSelectAction);
     return d->m_edit;
 }
 
 void KSelectAction::slotToggled(bool checked)
 {
     // if (checked && selectableActionGroup()->checkedAction())
     if (!checked && currentAction()) { // other's submenu item has been selected
         currentAction()->setChecked(false);
     }
 }
 
 KSelectAction::ToolBarMode KSelectAction::toolBarMode() const
 {
     Q_D(const KSelectAction);
     return d->m_toolBarMode;
 }
 
 void KSelectAction::setToolBarMode(ToolBarMode mode)
 {
     Q_D(KSelectAction);
     d->m_toolBarMode = mode;
 }
 
 QToolButton::ToolButtonPopupMode KSelectAction::toolButtonPopupMode() const
 {
     Q_D(const KSelectAction);
     return d->m_toolButtonPopupMode;
 }
 
 void KSelectAction::setToolButtonPopupMode(QToolButton::ToolButtonPopupMode mode)
 {
     Q_D(KSelectAction);
     d->m_toolButtonPopupMode = mode;
 }
 
 void KSelectActionPrivate::comboBoxDeleted(QComboBox *combo)
 {
     m_comboBoxes.removeAll(combo);
 }
 
 void KSelectActionPrivate::comboBoxCurrentIndexChanged(int index)
 {
     Q_Q(KSelectAction);
     // qCDebug(KWidgetsAddonsLog) << "KSelectActionPrivate::comboBoxCurrentIndexChanged(" << index << ")";
 
     QComboBox *triggeringCombo = qobject_cast<QComboBox *>(q->sender());
 
     QAction *a = q->action(index);
     // qCDebug(KWidgetsAddonsLog) << "\ta=" << a;
     if (a) {
         // qCDebug(KWidgetsAddonsLog) << "\t\tsetting as current action";
         a->trigger();
 
     } else if (q->isEditable() && triggeringCombo && triggeringCombo->count() > 0 && index == triggeringCombo->count() - 1) {
         // User must have added a new item by typing and pressing enter.
         const QString newItemText = triggeringCombo->currentText();
         // qCDebug(KWidgetsAddonsLog) << "\t\tuser typed new item '" << newItemText << "'";
 
         // Only 1 combobox contains this and it's not a proper action.
         bool blocked = triggeringCombo->blockSignals(true);
         triggeringCombo->removeItem(index);
         triggeringCombo->blockSignals(blocked);
 
         QAction *newAction = q->addAction(newItemText);
 
         newAction->trigger();
     } else {
         if (q->selectableActionGroup()->checkedAction()) {
             q->selectableActionGroup()->checkedAction()->setChecked(false);
         }
     }
 }
 
 // TODO: DropAmpersands() certainly makes sure this doesn't work.  But I don't
 // think it did anyway esp. in the presence KCheckAccelerator - Clarence.
 void KSelectAction::setMenuAccelsEnabled(bool b)
 {
     Q_D(KSelectAction);
     d->m_menuAccelsEnabled = b;
 }
 
 bool KSelectAction::menuAccelsEnabled() const
 {
     Q_D(const KSelectAction);
     return d->m_menuAccelsEnabled;
 }
 
 QWidget *KSelectAction::createWidget(QWidget *parent)
 {
     Q_D(KSelectAction);
     QMenu *menu = qobject_cast<QMenu *>(parent);
     if (menu) { // If used in a menu want to return 0 and use only the text, not a widget
         return nullptr;
     }
     ToolBarMode mode = toolBarMode();
     QToolBar *toolBar = qobject_cast<QToolBar *>(parent);
     if (!toolBar && mode != ComboBoxMode) { // we can return a combobox just fine.
         return nullptr;
     }
     switch (mode) {
     case MenuMode: {
         QToolButton *button = new QToolButton(toolBar);
         button->setToolTip(toolTip());
         button->setWhatsThis(whatsThis());
         button->setStatusTip(statusTip());
         button->setAutoRaise(true);
         button->setFocusPolicy(Qt::NoFocus);
         button->setIconSize(toolBar->iconSize());
         button->setToolButtonStyle(toolBar->toolButtonStyle());
         QObject::connect(toolBar, &QToolBar::iconSizeChanged, button, &QAbstractButton::setIconSize);
         QObject::connect(toolBar, &QToolBar::toolButtonStyleChanged, button, &QToolButton::setToolButtonStyle);
         button->setDefaultAction(this);
         QObject::connect(button, &QToolButton::triggered, toolBar, &QToolBar::actionTriggered);
 
         button->setPopupMode(toolButtonPopupMode());
 
         button->addActions(selectableActionGroup()->actions());
 
         d->m_buttons.append(button);
         return button;
     }
 
     case ComboBoxMode: {
         QComboBox *comboBox = new QComboBox(parent);
         comboBox->installEventFilter(this);
 
         if (d->m_maxComboViewCount != -1) {
             comboBox->setMaxVisibleItems(d->m_maxComboViewCount);
         }
 
         if (d->m_comboWidth > 0) {
             comboBox->setMaximumWidth(d->m_comboWidth);
         }
 
         comboBox->setEditable(isEditable());
         comboBox->setToolTip(toolTip());
         comboBox->setWhatsThis(whatsThis());
         comboBox->setStatusTip(statusTip());
 
         const auto selectableActions = selectableActionGroup()->actions();
         for (QAction *action : selectableActions) {
             comboBox->addAction(action);
         }
 
         if (selectableActions.isEmpty()) {
             comboBox->setEnabled(false);
         }
 
         connect(comboBox, &QComboBox::destroyed, this, [d, comboBox]() {
             d->comboBoxDeleted(comboBox);
         });
 
         connect(comboBox, &QComboBox::currentIndexChanged, this, [d](int value) {
             d->comboBoxCurrentIndexChanged(value);
         });
 
         d->m_comboBoxes.append(comboBox);
 
         return comboBox;
     }
     }
 
     return nullptr;
 }
 
 void KSelectAction::deleteWidget(QWidget *widget)
 {
     Q_D(KSelectAction);
     if (QToolButton *toolButton = qobject_cast<QToolButton *>(widget)) {
         d->m_buttons.removeAll(toolButton);
     } else if (QComboBox *comboBox = qobject_cast<QComboBox *>(widget)) {
         d->m_comboBoxes.removeAll(comboBox);
     }
     QWidgetAction::deleteWidget(widget);
 }
 
 bool KSelectAction::event(QEvent *event)
 {
     Q_D(KSelectAction);
     if (event->type() == QEvent::ActionChanged) {
         for (QComboBox *comboBox : std::as_const(d->m_comboBoxes)) {
             comboBox->setToolTip(toolTip());
             comboBox->setWhatsThis(whatsThis());
             comboBox->setStatusTip(statusTip());
         }
         for (QToolButton *toolButton : std::as_const(d->m_buttons)) {
             toolButton->setToolTip(toolTip());
             toolButton->setWhatsThis(whatsThis());
             toolButton->setStatusTip(statusTip());
         }
     }
     return QWidgetAction::event(event);
 }
 
 // KSelectAction::eventFilter() is called before action->setChecked()
 // invokes the signal to update QActionGroup so KSelectAction::currentItem()
 // returns an old value.  There are 3 possibilities, where n actions will
 // report QAction::isChecked() where n is:
 //
 // 0: the checked action was unchecked
 // 1: the checked action did not change
 // 2: another action was checked but QActionGroup has not been invoked yet
 //    to uncheck the one that was checked before
 //
 // TODO: we might want to cache this since QEvent::ActionChanged is fired
 //       often.
 static int TrueCurrentItem(KSelectAction *sa)
 {
     QAction *curAction = sa->currentAction();
     // qCDebug(KWidgetsAddonsLog) << "\tTrueCurrentItem(" << sa << ") curAction=" << curAction;
 
     const auto actions = sa->actions();
     int i = 0;
     for (QAction *action : actions) {
         if (action->isChecked()) {
             // qCDebug(KWidgetsAddonsLog) << "\t\taction " << action << " (text=" << action->text () << ") isChecked";
 
             // 2 actions checked case?
             if (action != curAction) {
                 // qCDebug(KWidgetsAddonsLog) << "\t\t\tmust be newly selected one";
                 return i;
             }
         }
         ++i;
     }
 
     // qCDebug(KWidgetsAddonsLog) << "\t\tcurrent action still selected? " << (curAction && curAction->isChecked ());
     // 1 or 0 actions checked case (in that order)?
     return (curAction && curAction->isChecked()) ? sa->actions().indexOf(curAction) : -1;
 }
 
 bool KSelectAction::eventFilter(QObject *watched, QEvent *event)
 {
     QComboBox *comboBox = qobject_cast<QComboBox *>(watched);
     if (!comboBox) {
         return false /*propagate event*/;
     }
 
     // If focus is lost, replace any edited text with the currently selected
     // item.
     if (event->type() == QEvent::FocusOut) {
         QFocusEvent *const e = static_cast<QFocusEvent *>(event);
         // qCDebug(KWidgetsAddonsLog) << "KSelectAction::eventFilter(FocusOut)"
         //  << "    comboBox: ptr=" << comboBox
         //  << " reason=" << e->reason ()
         //  << endl;
 
         if (e->reason() != Qt::ActiveWindowFocusReason // switch window
             && e->reason() != Qt::PopupFocusReason // menu
             && e->reason() != Qt::OtherFocusReason // inconsistently reproduceable actions...
         ) {
             // qCDebug(KWidgetsAddonsLog) << "\tkilling text";
             comboBox->setEditText(comboBox->itemText(comboBox->currentIndex()));
         }
 
         return false /*propagate event*/;
     }
 
     bool blocked = comboBox->blockSignals(true);
 
     if (event->type() == QEvent::ActionAdded) {
         QActionEvent *const e = static_cast<QActionEvent *>(event);
 
         const int index = e->before() ? comboBox->findData(QVariant::fromValue(e->before())) : comboBox->count();
         const int newItem = ::TrueCurrentItem(this);
         // qCDebug(KWidgetsAddonsLog) << "KSelectAction::eventFilter(ActionAdded)"
         //          << "    comboBox: ptr=" << comboBox
         //          << " currentItem=" << comboBox->currentIndex ()
         //          << "    add index=" << index
         //          << "    action new: e->before=" << e->before ()
         //          << " ptr=" << e->action ()
         //          << " icon=" << e->action ()->icon ()
         //          << " text=" << e->action ()->text ()
         //          << " currentItem=" << newItem
         //          << endl;
         comboBox->insertItem(index, e->action()->icon(), ::DropAmpersands(e->action()->text()), QVariant::fromValue(e->action()));
         if (QStandardItemModel *model = qobject_cast<QStandardItemModel *>(comboBox->model())) {
             QStandardItem *item = model->item(index);
             item->setEnabled(e->action()->isEnabled());
         }
 
         // Inserting an item into a combobox can change the current item so
         // make sure the item corresponding to the checked action is selected.
         comboBox->setCurrentIndex(newItem);
     } else if (event->type() == QEvent::ActionChanged) {
         QActionEvent *const e = static_cast<QActionEvent *>(event);
 
         const int index = comboBox->findData(QVariant::fromValue(e->action()));
         const int newItem = ::TrueCurrentItem(this);
         // qCDebug(KWidgetsAddonsLog) << "KSelectAction::eventFilter(ActionChanged)"
         //          << "    comboBox: ptr=" << comboBox
         //          << " currentItem=" << comboBox->currentIndex ()
         //          << "    changed action's index=" << index
         //          << "    action new: ptr=" << e->action ()
         //          << " icon=" << e->action ()->icon ()
         //          << " text=" << e->action ()->text ()
         //          << " currentItem=" << newItem
         //          << endl;
         comboBox->setItemIcon(index, e->action()->icon());
         comboBox->setItemText(index, ::DropAmpersands(e->action()->text()));
         if (QStandardItemModel *model = qobject_cast<QStandardItemModel *>(comboBox->model())) {
             QStandardItem *item = model->item(index);
             item->setEnabled(e->action()->isEnabled());
         }
 
         // The checked action may have become unchecked so
         // make sure the item corresponding to the checked action is selected.
         comboBox->setCurrentIndex(newItem);
     } else if (event->type() == QEvent::ActionRemoved) {
         QActionEvent *const e = static_cast<QActionEvent *>(event);
 
         const int index = comboBox->findData(QVariant::fromValue(e->action()));
         const int newItem = ::TrueCurrentItem(this);
         // qCDebug(KWidgetsAddonsLog) << "KSelectAction::eventFilter(ActionRemoved)"
         //          << "    comboBox: ptr=" << comboBox
         //          << " currentItem=" << comboBox->currentIndex ()
         //          << "    delete action index=" << index
         //          << "    new: currentItem=" << newItem
         //          << endl;
         comboBox->removeItem(index);
 
         // Removing an item from a combobox can change the current item so
         // make sure the item corresponding to the checked action is selected.
         comboBox->setCurrentIndex(newItem);
     }
 
     comboBox->blockSignals(blocked);
 
     return false /*propagate event*/;
 }
 
 // END
 
 #include "moc_kselectaction.cpp"