Cppcheck - HTML report - digiKam-nl-search-more-criteria-rev-e2466e0973

# Cppcheck report - digiKam-nl-search-more-criteria-rev-e2466e0973: ../../core/libs/widgets/itemview/itemviewtooltip.cpp

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    /* ============================================================
     *
     * This file is a part of digiKam project
     * https://www.digikam.org
     *
     * Date        : 2009-04-24
     * Description : A DItemToolTip prepared for use in QAbstractItemViews
     *
     * SPDX-FileCopyrightText: 2009-2011 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
     *
     * SPDX-License-Identifier: GPL-2.0-or-later
     *
     * ============================================================ */

    #include "itemviewtooltip.h"

    // Qt includes

    #include <QApplication>
    #include <QToolTip>

    // Local includes

    #include "digikam_debug.h"

    namespace Digikam
    {

    class Q_DECL_HIDDEN ItemViewToolTip::Private
    {
    public:

        Private() = default;

        QAbstractItemView* view             = nullptr;
        QModelIndex        index;
        QRect              rect;
        QString            text;
        bool               filterInstalled  = false;
    };

    ItemViewToolTip::ItemViewToolTip(QAbstractItemView* const view)
        : DItemToolTip(view),
          d           (new Private)
    {
        d->view = view;

        setForegroundRole(QPalette::ToolTipText);
        setBackgroundRole(QPalette::ToolTipBase);
        setMouseTracking(true);
    }

    ItemViewToolTip::~ItemViewToolTip()
    {
        delete d;
    }

    QAbstractItemView* ItemViewToolTip::view() const
    {
        return d->view;
    }

    QAbstractItemModel* ItemViewToolTip::model() const
    {
        return (d->view ? d->view->model() : nullptr);
    }

    QModelIndex ItemViewToolTip::currentIndex() const
    {
        return d->index;
    }

    void ItemViewToolTip::show(const QStyleOptionViewItem& option, const QModelIndex& index)
    {
        d->index = index;
        d->rect  = option.rect;
        d->rect.moveTopLeft(d->view->viewport()->mapToGlobal(d->rect.topLeft()));
        updateToolTip();
        reposition();

        if (isHidden() && !toolTipIsEmpty())
        {
            if (!d->filterInstalled)
            {
                qApp->installEventFilter(this);
                d->filterInstalled = true;
            }

            DItemToolTip::show();
        }
    }

    void ItemViewToolTip::setTipContents(const QString& tipContents)<--- Shadow argument
    {
        d->text = tipContents;
        updateToolTip();
    }

    QString ItemViewToolTip::tipContents()
    {
        return d->text;
    }

    QRect ItemViewToolTip::repositionRect()
    {
        return d->rect;
    }

    void ItemViewToolTip::hideEvent(QHideEvent*)
    {
        d->rect  = QRect();
        d->index = QModelIndex();

        if (d->filterInstalled)
        {
            d->filterInstalled = false;
            qApp->removeEventFilter(this);
        }
    }

    // The following code is inspired by qtooltip.cpp,
    // Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).

    bool ItemViewToolTip::eventFilter(QObject* o, QEvent* e)
    {
        switch (e->type())
        {

    #ifdef Q_OS_MACOS

            case QEvent::KeyPress:
            case QEvent::KeyRelease:
            {
                int key                    = static_cast<QKeyEvent*>(e)->key();
                Qt::KeyboardModifiers mody = static_cast<QKeyEvent*>(e)->modifiers();

                if (
                    !(mody & Qt::KeyboardModifierMask) &&
                    (key != Qt::Key_Shift)             &&
                    (key != Qt::Key_Control)           &&
                    (key != Qt::Key_Alt)               &&
                    (key != Qt::Key_Meta)
                   )
                {
                    hide();
                }

                break;
            }

    #endif // Q_OS_MACOS

            case QEvent::Leave:
            {
                hide(); // could add a 300ms timer here, like Qt
                break;
            }

            case QEvent::WindowActivate:
            case QEvent::WindowDeactivate:
            case QEvent::MouseButtonPress:
            case QEvent::MouseButtonDblClick:
            case QEvent::FocusIn:
            case QEvent::FocusOut:
            case QEvent::Wheel:
            {
                hide();
                break;
            }

            case QEvent::MouseMove:
            {
                // needs mouse tracking, obviously
                if (
                    (o == d->view->viewport()) &&
                    !d->rect.isNull()          &&

    #if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))

                    !d->rect.contains(static_cast<QMouseEvent*>(e)->globalPosition().toPoint())

    #else

                    !d->rect.contains(static_cast<QMouseEvent*>(e)->globalPos())

    #endif

                   )
                {
                    hide();
                }

                break;
            }

            default:
            {
                break;
            }
        }

        return false;
    }

    void ItemViewToolTip::mouseMoveEvent(QMouseEvent* e)
    {
        if (d->rect.isNull())
        {
            return;
        }

    #if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))

        QPoint pos = e->globalPosition().toPoint();

    #else

        QPoint pos = e->globalPos();

    #endif

        pos        = d->view->viewport()->mapFromGlobal(pos);

        if (!d->rect.contains(pos))
        {
            hide();
        }

        DItemToolTip::mouseMoveEvent(e);
    }

    } // namespace Digikam

    #include "moc_itemviewtooltip.cpp"