File indexing completed on 2024-04-28 05:45:11

 /*
  * SPDX-FileCopyrightText: 2012 Peter Penz <peter.penz19@gmail.com>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #include "kstandarditemlistwidget.h"
 
 #include "kfileitemlistview.h"
 #include "kfileitemmodel.h"
 #include "private/kfileitemclipboard.h"
 #include "private/kitemlistroleeditor.h"
 #include "private/kitemviewsutils.h"
 #include "private/kpixmapmodifier.h"
 
 #include <KIconEffect>
 #include <KIconLoader>
 #include <KRatingPainter>
 #include <KStringHandler>
 
 #include <QApplication>
 #include <QGraphicsScene>
 #include <QGraphicsSceneResizeEvent>
 #include <QGraphicsView>
 #include <QPixmapCache>
 #include <QStyleOption>
 
 // #define KSTANDARDITEMLISTWIDGET_DEBUG
 
 KStandardItemListWidgetInformant::KStandardItemListWidgetInformant()
     : KItemListWidgetInformant()
 {
 }
 
 KStandardItemListWidgetInformant::~KStandardItemListWidgetInformant()
 {
 }
 
 void KStandardItemListWidgetInformant::calculateItemSizeHints(QVector<std::pair<qreal, bool>> &logicalHeightHints,
                                                               qreal &logicalWidthHint,
                                                               const KItemListView *view) const
 {
     switch (static_cast<const KStandardItemListView *>(view)->itemLayout()) {
     case KStandardItemListView::IconsLayout:
         calculateIconsLayoutItemSizeHints(logicalHeightHints, logicalWidthHint, view);
         break;
 
     case KStandardItemListView::CompactLayout:
         calculateCompactLayoutItemSizeHints(logicalHeightHints, logicalWidthHint, view);
         break;
 
     case KStandardItemListView::DetailsLayout:
         calculateDetailsLayoutItemSizeHints(logicalHeightHints, logicalWidthHint, view);
         break;
 
     default:
         Q_ASSERT(false);
         break;
     }
 }
 
 qreal KStandardItemListWidgetInformant::preferredRoleColumnWidth(const QByteArray &role, int index, const KItemListView *view) const
 {
     const QHash<QByteArray, QVariant> values = view->model()->data(index);
     const KItemListStyleOption &option = view->styleOption();
 
     const QString text = roleText(role, values);
     qreal width = KStandardItemListWidget::columnPadding(option);
 
     const QFontMetrics &normalFontMetrics = option.fontMetrics;
     const QFontMetrics linkFontMetrics(customizedFontForLinks(option.font));
 
     if (role == "rating") {
         width += KStandardItemListWidget::preferredRatingSize(option).width();
     } else {
         // If current item is a link, we use the customized link font metrics instead of the normal font metrics.
         const QFontMetrics &fontMetrics = itemIsLink(index, view) ? linkFontMetrics : normalFontMetrics;
 
         width += fontMetrics.horizontalAdvance(text);
 
         if (role == "text") {
             if (view->supportsItemExpanding()) {
                 // Increase the width by the expansion-toggle and the current expansion level
                 const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
                 const qreal height = option.padding * 2 + qMax(option.iconSize, fontMetrics.height());
                 width += (expandedParentsCount + 1) * height;
             }
 
             // Increase the width by the required space for the icon
             width += option.padding * 2 + option.iconSize;
         }
     }
 
     return width;
 }
 
 QString KStandardItemListWidgetInformant::itemText(int index, const KItemListView *view) const
 {
     return view->model()->data(index).value("text").toString();
 }
 
 bool KStandardItemListWidgetInformant::itemIsLink(int index, const KItemListView *view) const
 {
     Q_UNUSED(index)
     Q_UNUSED(view)
     return false;
 }
 
 QString KStandardItemListWidgetInformant::roleText(const QByteArray &role, const QHash<QByteArray, QVariant> &values) const
 {
     if (role == "rating") {
         // Always use an empty text, as the rating is shown by the image m_rating.
         return QString();
     }
     return values.value(role).toString();
 }
 
 QFont KStandardItemListWidgetInformant::customizedFontForLinks(const QFont &baseFont) const
 {
     return baseFont;
 }
 
 void KStandardItemListWidgetInformant::calculateIconsLayoutItemSizeHints(QVector<std::pair<qreal, bool>> &logicalHeightHints,
                                                                          qreal &logicalWidthHint,
                                                                          const KItemListView *view) const
 {
     const KItemListStyleOption &option = view->styleOption();
     const QFont &normalFont = option.font;
     const int additionalRolesCount = qMax(view->visibleRoles().count() - 1, 0);
 
     const qreal itemWidth = view->itemSize().width();
     const qreal maxWidth = itemWidth - 2 * option.padding;
     const qreal additionalRolesSpacing = additionalRolesCount * option.fontMetrics.lineSpacing();
     const qreal spacingAndIconHeight = option.iconSize + option.padding * 3;
 
     const QFont linkFont = customizedFontForLinks(normalFont);
 
     QTextOption textOption(Qt::AlignHCenter);
     textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 
     for (int index = 0; index < logicalHeightHints.count(); ++index) {
         if (logicalHeightHints.at(index).first > 0.0) {
             continue;
         }
 
         // If the current item is a link, we use the customized link font instead of the normal font.
         const QFont &font = itemIsLink(index, view) ? linkFont : normalFont;
 
         const QString &text = KStringHandler::preProcessWrap(itemText(index, view));
 
         // Calculate the number of lines required for wrapping the name
         qreal textHeight = 0;
         QTextLayout layout(text, font);
         layout.setTextOption(textOption);
         layout.beginLayout();
         QTextLine line;
         int lineCount = 0;
         bool isElided = false;
         while ((line = layout.createLine()).isValid()) {
             line.setLineWidth(maxWidth);
             line.naturalTextWidth();
             textHeight += line.height();
 
             ++lineCount;
             if (lineCount == option.maxTextLines) {
                 isElided = layout.createLine().isValid();
                 break;
             }
         }
         layout.endLayout();
 
         // Add one line for each additional information
         textHeight += additionalRolesSpacing;
 
         logicalHeightHints[index].first = textHeight + spacingAndIconHeight;
         logicalHeightHints[index].second = isElided;
     }
 
     logicalWidthHint = itemWidth;
 }
 
 void KStandardItemListWidgetInformant::calculateCompactLayoutItemSizeHints(QVector<std::pair<qreal, bool>> &logicalHeightHints,
                                                                            qreal &logicalWidthHint,
                                                                            const KItemListView *view) const
 {
     const KItemListStyleOption &option = view->styleOption();
     const QFontMetrics &normalFontMetrics = option.fontMetrics;
     const int additionalRolesCount = qMax(view->visibleRoles().count() - 1, 0);
 
     const QList<QByteArray> &visibleRoles = view->visibleRoles();
     const bool showOnlyTextRole = (visibleRoles.count() == 1) && (visibleRoles.first() == "text");
     const qreal maxWidth = option.maxTextWidth;
     const qreal paddingAndIconWidth = option.padding * 4 + option.iconSize;
     const qreal height = option.padding * 2 + qMax(option.iconSize, (1 + additionalRolesCount) * normalFontMetrics.lineSpacing());
 
     const QFontMetrics linkFontMetrics(customizedFontForLinks(option.font));
 
     for (int index = 0; index < logicalHeightHints.count(); ++index) {
         if (logicalHeightHints.at(index).first > 0.0) {
             continue;
         }
 
         // If the current item is a link, we use the customized link font metrics instead of the normal font metrics.
         const QFontMetrics &fontMetrics = itemIsLink(index, view) ? linkFontMetrics : normalFontMetrics;
 
         // For each row exactly one role is shown. Calculate the maximum required width that is necessary
         // to show all roles without horizontal clipping.
         qreal maximumRequiredWidth = 0.0;
 
         if (showOnlyTextRole) {
             maximumRequiredWidth = fontMetrics.horizontalAdvance(itemText(index, view));
         } else {
             const QHash<QByteArray, QVariant> &values = view->model()->data(index);
             for (const QByteArray &role : visibleRoles) {
                 const QString &text = roleText(role, values);
                 const qreal requiredWidth = fontMetrics.horizontalAdvance(text);
                 maximumRequiredWidth = qMax(maximumRequiredWidth, requiredWidth);
             }
         }
 
         qreal width = paddingAndIconWidth + maximumRequiredWidth;
         if (maxWidth > 0 && width > maxWidth) {
             width = maxWidth;
         }
 
         logicalHeightHints[index].first = width;
     }
 
     logicalWidthHint = height;
 }
 
 void KStandardItemListWidgetInformant::calculateDetailsLayoutItemSizeHints(QVector<std::pair<qreal, bool>> &logicalHeightHints,
                                                                            qreal &logicalWidthHint,
                                                                            const KItemListView *view) const
 {
     const KItemListStyleOption &option = view->styleOption();
     const qreal height = option.padding * 2 + qMax(option.iconSize, option.fontMetrics.height());
     logicalHeightHints.fill(std::make_pair(height, false));
     logicalWidthHint = -1.0;
 }
 
 KStandardItemListWidget::KStandardItemListWidget(KItemListWidgetInformant *informant, QGraphicsItem *parent)
     : KItemListWidget(informant, parent)
     , m_textInfo()
     , m_isCut(false)
     , m_isHidden(false)
     , m_customizedFont()
     , m_customizedFontMetrics(m_customizedFont)
     , m_isExpandable(false)
     , m_highlightEntireRow(false)
     , m_supportsItemExpanding(false)
     , m_dirtyLayout(true)
     , m_dirtyContent(true)
     , m_dirtyContentRoles()
     , m_layout(IconsLayout)
     , m_pixmapPos()
     , m_pixmap()
     , m_scaledPixmapSize()
     , m_columnWidthSum()
     , m_iconRect()
     , m_hoverPixmap()
     , m_textRect()
     , m_sortedVisibleRoles()
     , m_expansionArea()
     , m_customTextColor()
     , m_additionalInfoTextColor()
     , m_overlay()
     , m_rating()
     , m_roleEditor(nullptr)
     , m_oldRoleEditor(nullptr)
 {
 }
 
 KStandardItemListWidget::~KStandardItemListWidget()
 {
     qDeleteAll(m_textInfo);
     m_textInfo.clear();
 
     if (m_roleEditor) {
         m_roleEditor->deleteLater();
     }
 
     if (m_oldRoleEditor) {
         m_oldRoleEditor->deleteLater();
     }
 }
 
 void KStandardItemListWidget::setLayout(Layout layout)
 {
     if (m_layout != layout) {
         m_layout = layout;
         m_dirtyLayout = true;
         updateAdditionalInfoTextColor();
         update();
     }
 }
 
 void KStandardItemListWidget::setHighlightEntireRow(bool highlightEntireRow)
 {
     if (m_highlightEntireRow != highlightEntireRow) {
         m_highlightEntireRow = highlightEntireRow;
         m_dirtyLayout = true;
         update();
     }
 }
 
 bool KStandardItemListWidget::highlightEntireRow() const
 {
     return m_highlightEntireRow;
 }
 
 void KStandardItemListWidget::setSupportsItemExpanding(bool supportsItemExpanding)
 {
     if (m_supportsItemExpanding != supportsItemExpanding) {
         m_supportsItemExpanding = supportsItemExpanding;
         m_dirtyLayout = true;
         update();
     }
 }
 
 bool KStandardItemListWidget::supportsItemExpanding() const
 {
     return m_supportsItemExpanding;
 }
 
 void KStandardItemListWidget::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
 {
     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 
     KItemListWidget::paint(painter, option, widget);
 
     if (!m_expansionArea.isEmpty()) {
         drawSiblingsInformation(painter);
     }
 
     const KItemListStyleOption &itemListStyleOption = styleOption();
     if (isHovered() && !m_pixmap.isNull()) {
         if (hoverOpacity() < 1.0) {
             /*
              * Linear interpolation between m_pixmap and m_hoverPixmap.
              *
              * Note that this cannot be achieved by painting m_hoverPixmap over
              * m_pixmap, even if the opacities are adjusted. For details see
              * https://git.reviewboard.kde.org/r/109614/
              */
             // Paint pixmap1 so that pixmap1 = m_pixmap * (1.0 - hoverOpacity())
             QPixmap pixmap1(m_pixmap.size());
             pixmap1.setDevicePixelRatio(m_pixmap.devicePixelRatio());
             pixmap1.fill(Qt::transparent);
             {
                 QPainter p(&pixmap1);
                 p.setOpacity(1.0 - hoverOpacity());
                 p.drawPixmap(0, 0, m_pixmap);
             }
 
             // Paint pixmap2 so that pixmap2 = m_hoverPixmap * hoverOpacity()
             QPixmap pixmap2(pixmap1.size());
             pixmap2.setDevicePixelRatio(pixmap1.devicePixelRatio());
             pixmap2.fill(Qt::transparent);
             {
                 QPainter p(&pixmap2);
                 p.setOpacity(hoverOpacity());
                 p.drawPixmap(0, 0, m_hoverPixmap);
             }
 
             // Paint pixmap2 on pixmap1 using CompositionMode_Plus
             // Now pixmap1 = pixmap2 + m_pixmap * (1.0 - hoverOpacity())
             //             = m_hoverPixmap * hoverOpacity() + m_pixmap * (1.0 - hoverOpacity())
             {
                 QPainter p(&pixmap1);
                 p.setCompositionMode(QPainter::CompositionMode_Plus);
                 p.drawPixmap(0, 0, pixmap2);
             }
 
             // Finally paint pixmap1 on the widget
             drawPixmap(painter, pixmap1);
         } else {
             drawPixmap(painter, m_hoverPixmap);
         }
     } else if (!m_pixmap.isNull()) {
         drawPixmap(painter, m_pixmap);
     }
 
     painter->setFont(m_customizedFont);
     painter->setPen(textColor(*widget));
     const TextInfo *textInfo = m_textInfo.value("text");
 
     if (!textInfo) {
         // It seems that we can end up here even if m_textInfo does not contain
         // the key "text", see bug 306167. According to triggerCacheRefreshing(),
         // this can only happen if the index is negative. This can happen when
         // the item is about to be removed, see KItemListView::slotItemsRemoved().
         // TODO: try to reproduce the crash and find a better fix.
         return;
     }
 
     painter->drawStaticText(textInfo->pos, textInfo->staticText);
 
     bool clipAdditionalInfoBounds = false;
     if (m_supportsItemExpanding) {
         // Prevent a possible overlapping of the additional-information texts
         // with the icon. This can happen if the user has minimized the width
         // of the name-column to a very small value.
         const qreal minX = m_pixmapPos.x() + m_pixmap.width() + 4 * itemListStyleOption.padding;
         if (textInfo->pos.x() + columnWidth("text") > minX) {
             clipAdditionalInfoBounds = true;
             painter->save();
             painter->setClipRect(minX, 0, size().width() - minX, size().height(), Qt::IntersectClip);
         }
     }
 
     painter->setPen(m_additionalInfoTextColor);
     painter->setFont(m_customizedFont);
 
     for (int i = 1; i < m_sortedVisibleRoles.count(); ++i) {
         const TextInfo *textInfo = m_textInfo.value(m_sortedVisibleRoles[i]);
         painter->drawStaticText(textInfo->pos, textInfo->staticText);
     }
 
     if (!m_rating.isNull()) {
         const TextInfo *ratingTextInfo = m_textInfo.value("rating");
         QPointF pos = ratingTextInfo->pos;
         const Qt::Alignment align = ratingTextInfo->staticText.textOption().alignment();
         if (align & Qt::AlignHCenter) {
             pos.rx() += (size().width() - m_rating.width() / m_rating.devicePixelRatioF()) / 2 - 2;
         }
         painter->drawPixmap(pos, m_rating);
     }
 
     if (clipAdditionalInfoBounds) {
         painter->restore();
     }
 
 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
     painter->setBrush(Qt::NoBrush);
     painter->setPen(Qt::green);
     painter->drawRect(m_iconRect);
 
     painter->setPen(Qt::blue);
     painter->drawRect(m_textRect);
 
     painter->setPen(Qt::red);
     painter->drawText(QPointF(0, m_customizedFontMetrics.height()), QString::number(index()));
     painter->drawRect(rect());
 #endif
 }
 
 QRectF KStandardItemListWidget::iconRect() const
 {
     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
     return m_iconRect;
 }
 
 QRectF KStandardItemListWidget::textRect() const
 {
     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
     return m_textRect;
 }
 
 QRectF KStandardItemListWidget::textFocusRect() const
 {
     // In the compact- and details-layout a larger textRect() is returned to be aligned
     // with the iconRect(). This is useful to have a larger selection/hover-area
     // when having a quite large icon size but only one line of text. Still the
     // focus rectangle should be shown as narrow as possible around the text.
 
     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 
     switch (m_layout) {
     case CompactLayout: {
         QRectF rect = m_textRect;
         const TextInfo *topText = m_textInfo.value(m_sortedVisibleRoles.first());
         const TextInfo *bottomText = m_textInfo.value(m_sortedVisibleRoles.last());
         rect.setTop(topText->pos.y());
         rect.setBottom(bottomText->pos.y() + bottomText->staticText.size().height());
         return rect;
     }
 
     case DetailsLayout: {
         QRectF rect = m_textRect;
         const TextInfo *textInfo = m_textInfo.value(m_sortedVisibleRoles.first());
         rect.setTop(textInfo->pos.y());
         rect.setBottom(textInfo->pos.y() + textInfo->staticText.size().height());
 
         const KItemListStyleOption &option = styleOption();
         if (option.extendedSelectionRegion) {
             const QString text = textInfo->staticText.text();
             rect.setWidth(m_customizedFontMetrics.horizontalAdvance(text) + 2 * option.padding);
         }
 
         return rect;
     }
 
     default:
         break;
     }
 
     return m_textRect;
 }
 
 QRectF KStandardItemListWidget::selectionRect() const
 {
     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 
     switch (m_layout) {
     case IconsLayout:
         return m_textRect;
 
     case CompactLayout:
     case DetailsLayout: {
         const int padding = styleOption().padding;
         QRectF adjustedIconRect = iconRect().adjusted(-padding, -padding, padding, padding);
         QRectF result = adjustedIconRect | m_textRect;
         if (m_highlightEntireRow) {
             result.setRight(m_columnWidthSum + sidePadding());
         }
         return result;
     }
 
     default:
         Q_ASSERT(false);
         break;
     }
 
     return m_textRect;
 }
 
 QRectF KStandardItemListWidget::expansionToggleRect() const
 {
     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
     return m_isExpandable ? m_expansionArea : QRectF();
 }
 
 QRectF KStandardItemListWidget::selectionToggleRect() const
 {
     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 
     const int widgetIconSize = iconSize();
     int toggleSize = KIconLoader::SizeSmall;
     if (widgetIconSize >= KIconLoader::SizeEnormous) {
         toggleSize = KIconLoader::SizeMedium;
     } else if (widgetIconSize >= KIconLoader::SizeLarge) {
         toggleSize = KIconLoader::SizeSmallMedium;
     }
 
     QPointF pos = iconRect().topLeft();
 
     // If the selection toggle has a very small distance to the
     // widget borders, the size of the selection toggle will get
     // increased to prevent an accidental clicking of the item
     // when trying to hit the toggle.
     const int widgetHeight = size().height();
     const int widgetWidth = size().width();
     const int minMargin = 2;
 
     if (toggleSize + minMargin * 2 >= widgetHeight) {
         pos.rx() -= (widgetHeight - toggleSize) / 2;
         toggleSize = widgetHeight;
         pos.setY(0);
     }
     if (toggleSize + minMargin * 2 >= widgetWidth) {
         pos.ry() -= (widgetWidth - toggleSize) / 2;
         toggleSize = widgetWidth;
         pos.setX(0);
     }
 
     return QRectF(pos, QSizeF(toggleSize, toggleSize));
 }
 
 QPixmap KStandardItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem *option, QWidget *widget)
 {
     QPixmap pixmap = KItemListWidget::createDragPixmap(option, widget);
     if (m_layout != DetailsLayout) {
         return pixmap;
     }
 
     // Only return the content of the text-column as pixmap
     const int leftClip = m_pixmapPos.x();
 
     const TextInfo *textInfo = m_textInfo.value("text");
     const int rightClip = textInfo->pos.x() + textInfo->staticText.size().width() + 2 * styleOption().padding;
 
     QPixmap clippedPixmap(rightClip - leftClip + 1, pixmap.height());
     clippedPixmap.fill(Qt::transparent);
 
     QPainter painter(&clippedPixmap);
     painter.drawPixmap(-leftClip, 0, pixmap);
 
     return clippedPixmap;
 }
 
 KItemListWidgetInformant *KStandardItemListWidget::createInformant()
 {
     return new KStandardItemListWidgetInformant();
 }
 
 void KStandardItemListWidget::invalidateCache()
 {
     m_dirtyLayout = true;
     m_dirtyContent = true;
 }
 
 void KStandardItemListWidget::invalidateIconCache()
 {
     m_dirtyContent = true;
     m_dirtyContentRoles.insert("iconPixmap");
     m_dirtyContentRoles.insert("iconOverlays");
 }
 
 void KStandardItemListWidget::refreshCache()
 {
 }
 
 bool KStandardItemListWidget::isRoleRightAligned(const QByteArray &role) const
 {
     Q_UNUSED(role)
     return false;
 }
 
 bool KStandardItemListWidget::isHidden() const
 {
     return false;
 }
 
 QFont KStandardItemListWidget::customizedFont(const QFont &baseFont) const
 {
     return baseFont;
 }
 
 QPalette::ColorRole KStandardItemListWidget::normalTextColorRole() const
 {
     return QPalette::Text;
 }
 
 void KStandardItemListWidget::setTextColor(const QColor &color)
 {
     if (color != m_customTextColor) {
         m_customTextColor = color;
         updateAdditionalInfoTextColor();
         update();
     }
 }
 
 QColor KStandardItemListWidget::textColor(const QWidget &widget) const
 {
     if (!isSelected()) {
         if (m_isHidden) {
             return m_additionalInfoTextColor;
         } else if (m_customTextColor.isValid()) {
             return m_customTextColor;
         }
     }
 
     const QPalette::ColorGroup group = isActiveWindow() && widget.hasFocus() ? QPalette::Active : QPalette::Inactive;
     const QPalette::ColorRole role = isSelected() ? QPalette::HighlightedText : normalTextColorRole();
     return styleOption().palette.color(group, role);
 }
 
 void KStandardItemListWidget::setOverlay(const QPixmap &overlay)
 {
     m_overlay = overlay;
     m_dirtyContent = true;
     update();
 }
 
 QPixmap KStandardItemListWidget::overlay() const
 {
     return m_overlay;
 }
 
 QString KStandardItemListWidget::roleText(const QByteArray &role, const QHash<QByteArray, QVariant> &values) const
 {
     return static_cast<const KStandardItemListWidgetInformant *>(informant())->roleText(role, values);
 }
 
 void KStandardItemListWidget::dataChanged(const QHash<QByteArray, QVariant> &current, const QSet<QByteArray> &roles)
 {
     Q_UNUSED(current)
 
     m_dirtyContent = true;
 
     QSet<QByteArray> dirtyRoles;
     if (roles.isEmpty()) {
         const auto visibleRoles = this->visibleRoles();
         dirtyRoles = QSet<QByteArray>(visibleRoles.constBegin(), visibleRoles.constEnd());
     } else {
         dirtyRoles = roles;
     }
 
     // The URL might have changed (i.e., if the sort order of the items has
     // been changed). Therefore, the "is cut" state must be updated.
     KFileItemClipboard *clipboard = KFileItemClipboard::instance();
     const QUrl itemUrl = data().value("url").toUrl();
     m_isCut = clipboard->isCut(itemUrl);
 
     // The icon-state might depend from other roles and hence is
     // marked as dirty whenever a role has been changed
     dirtyRoles.insert("iconPixmap");
     dirtyRoles.insert("iconName");
 
     QSetIterator<QByteArray> it(dirtyRoles);
     while (it.hasNext()) {
         const QByteArray &role = it.next();
         m_dirtyContentRoles.insert(role);
     }
 }
 
 void KStandardItemListWidget::visibleRolesChanged(const QList<QByteArray> &current, const QList<QByteArray> &previous)
 {
     Q_UNUSED(previous)
     m_sortedVisibleRoles = current;
     m_dirtyLayout = true;
 }
 
 void KStandardItemListWidget::columnWidthChanged(const QByteArray &role, qreal current, qreal previous)
 {
     Q_UNUSED(role)
     Q_UNUSED(current)
     Q_UNUSED(previous)
     m_dirtyLayout = true;
 }
 
 void KStandardItemListWidget::sidePaddingChanged(qreal padding)
 {
     Q_UNUSED(padding)
     m_dirtyLayout = true;
 }
 
 void KStandardItemListWidget::styleOptionChanged(const KItemListStyleOption &current, const KItemListStyleOption &previous)
 {
     KItemListWidget::styleOptionChanged(current, previous);
 
     updateAdditionalInfoTextColor();
     m_dirtyLayout = true;
 }
 
 void KStandardItemListWidget::hoveredChanged(bool hovered)
 {
     Q_UNUSED(hovered)
     m_dirtyLayout = true;
 }
 
 void KStandardItemListWidget::selectedChanged(bool selected)
 {
     Q_UNUSED(selected)
     updateAdditionalInfoTextColor();
     m_dirtyContent = true;
 }
 
 void KStandardItemListWidget::siblingsInformationChanged(const QBitArray &current, const QBitArray &previous)
 {
     Q_UNUSED(current)
     Q_UNUSED(previous)
     m_dirtyLayout = true;
 }
 
 int KStandardItemListWidget::selectionLength(const QString &text) const
 {
     return text.length();
 }
 
 void KStandardItemListWidget::editedRoleChanged(const QByteArray &current, const QByteArray &previous)
 {
     Q_UNUSED(previous)
 
     QGraphicsView *parent = scene()->views()[0];
     if (current.isEmpty() || !parent || current != "text") {
         if (m_roleEditor) {
             Q_EMIT roleEditingCanceled(index(), current, data().value(current));
 
             disconnect(m_roleEditor, &KItemListRoleEditor::roleEditingCanceled, this, &KStandardItemListWidget::slotRoleEditingCanceled);
             disconnect(m_roleEditor, &KItemListRoleEditor::roleEditingFinished, this, &KStandardItemListWidget::slotRoleEditingFinished);
 
             if (m_oldRoleEditor) {
                 m_oldRoleEditor->deleteLater();
             }
             m_oldRoleEditor = m_roleEditor;
             m_roleEditor->hide();
             m_roleEditor = nullptr;
         }
         return;
     }
 
     Q_ASSERT(!m_roleEditor);
 
     const TextInfo *textInfo = m_textInfo.value("text");
 
     m_roleEditor = new KItemListRoleEditor(parent);
     m_roleEditor->setRole(current);
     m_roleEditor->setAllowUpDownKeyChainEdit(m_layout != IconsLayout);
     m_roleEditor->setFont(styleOption().font);
 
     const QString text = data().value(current).toString();
     m_roleEditor->setPlainText(text);
 
     QTextOption textOption = textInfo->staticText.textOption();
     m_roleEditor->document()->setDefaultTextOption(textOption);
 
     const int textSelectionLength = selectionLength(text);
 
     if (textSelectionLength > 0) {
         QTextCursor cursor = m_roleEditor->textCursor();
         cursor.movePosition(QTextCursor::StartOfBlock);
         cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, textSelectionLength);
         m_roleEditor->setTextCursor(cursor);
     }
 
     connect(m_roleEditor, &KItemListRoleEditor::roleEditingCanceled, this, &KStandardItemListWidget::slotRoleEditingCanceled);
     connect(m_roleEditor, &KItemListRoleEditor::roleEditingFinished, this, &KStandardItemListWidget::slotRoleEditingFinished);
 
     // Adjust the geometry of the editor
     QRectF rect = roleEditingRect(current);
     const int frameWidth = m_roleEditor->frameWidth();
     rect.adjust(-frameWidth, -frameWidth, frameWidth, frameWidth);
     rect.translate(pos());
     if (rect.right() > parent->width()) {
         rect.setWidth(parent->width() - rect.left());
     }
     m_roleEditor->setGeometry(rect.toRect());
     m_roleEditor->autoAdjustSize();
     m_roleEditor->show();
     m_roleEditor->setFocus();
 }
 
 void KStandardItemListWidget::iconSizeChanged(int current, int previous)
 {
     KItemListWidget::iconSizeChanged(current, previous);
 
     invalidateIconCache();
     triggerCacheRefreshing();
     update();
 }
 
 void KStandardItemListWidget::resizeEvent(QGraphicsSceneResizeEvent *event)
 {
     if (m_roleEditor) {
         setEditedRole(QByteArray());
         Q_ASSERT(!m_roleEditor);
     }
 
     KItemListWidget::resizeEvent(event);
 
     m_dirtyLayout = true;
 }
 
 void KStandardItemListWidget::showEvent(QShowEvent *event)
 {
     KItemListWidget::showEvent(event);
 
     // Listen to changes of the clipboard to mark the item as cut/uncut
     KFileItemClipboard *clipboard = KFileItemClipboard::instance();
 
     const QUrl itemUrl = data().value("url").toUrl();
     m_isCut = clipboard->isCut(itemUrl);
 
     connect(clipboard, &KFileItemClipboard::cutItemsChanged, this, &KStandardItemListWidget::slotCutItemsChanged);
 }
 
 void KStandardItemListWidget::hideEvent(QHideEvent *event)
 {
     disconnect(KFileItemClipboard::instance(), &KFileItemClipboard::cutItemsChanged, this, &KStandardItemListWidget::slotCutItemsChanged);
 
     KItemListWidget::hideEvent(event);
 }
 
 bool KStandardItemListWidget::event(QEvent *event)
 {
     if (event->type() == QEvent::WindowDeactivate || event->type() == QEvent::WindowActivate || event->type() == QEvent::PaletteChange) {
         m_dirtyContent = true;
     }
 
     return KItemListWidget::event(event);
 }
 
 void KStandardItemListWidget::finishRoleEditing()
 {
     if (!editedRole().isEmpty() && m_roleEditor) {
         slotRoleEditingFinished(editedRole(), KIO::encodeFileName(m_roleEditor->toPlainText()));
     }
 }
 
 void KStandardItemListWidget::slotCutItemsChanged()
 {
     const QUrl itemUrl = data().value("url").toUrl();
     const bool isCut = KFileItemClipboard::instance()->isCut(itemUrl);
     if (m_isCut != isCut) {
         m_isCut = isCut;
         m_pixmap = QPixmap();
         m_dirtyContent = true;
         update();
     }
 }
 
 void KStandardItemListWidget::slotRoleEditingCanceled(const QByteArray &role, const QVariant &value)
 {
     closeRoleEditor();
     Q_EMIT roleEditingCanceled(index(), role, value);
     setEditedRole(QByteArray());
 }
 
 void KStandardItemListWidget::slotRoleEditingFinished(const QByteArray &role, const QVariant &value)
 {
     closeRoleEditor();
     Q_EMIT roleEditingFinished(index(), role, value);
     setEditedRole(QByteArray());
 }
 
 void KStandardItemListWidget::triggerCacheRefreshing()
 {
     if ((!m_dirtyContent && !m_dirtyLayout) || index() < 0) {
         return;
     }
 
     refreshCache();
 
     const QHash<QByteArray, QVariant> values = data();
     m_isExpandable = m_supportsItemExpanding && values["isExpandable"].toBool();
     m_isHidden = isHidden();
     m_customizedFont = customizedFont(styleOption().font);
     m_customizedFontMetrics = QFontMetrics(m_customizedFont);
     m_columnWidthSum = std::accumulate(m_sortedVisibleRoles.begin(), m_sortedVisibleRoles.end(), qreal(), [this](qreal sum, const auto &role) {
         return sum + columnWidth(role);
     });
 
     updateExpansionArea();
     updateTextsCache();
     updatePixmapCache();
     clearHoverCache();
 
     m_dirtyLayout = false;
     m_dirtyContent = false;
     m_dirtyContentRoles.clear();
 }
 
 void KStandardItemListWidget::updateExpansionArea()
 {
     if (m_supportsItemExpanding) {
         const QHash<QByteArray, QVariant> values = data();
         const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
         if (expandedParentsCount >= 0) {
             const int widgetIconSize = iconSize();
             const qreal widgetHeight = size().height();
             const qreal inc = (widgetHeight - widgetIconSize) / 2;
             const qreal x = expandedParentsCount * widgetHeight + inc;
             const qreal y = inc;
             const qreal xPadding = m_highlightEntireRow ? sidePadding() : 0;
             m_expansionArea = QRectF(xPadding + x, y, widgetIconSize, widgetIconSize);
             return;
         }
     }
 
     m_expansionArea = QRectF();
 }
 
 void KStandardItemListWidget::updatePixmapCache()
 {
     // Precondition: Requires already updated m_textPos values to calculate
     // the remaining height when the alignment is vertical.
 
     const QSizeF widgetSize = size();
     const bool iconOnTop = (m_layout == IconsLayout);
     const KItemListStyleOption &option = styleOption();
     const qreal padding = option.padding;
     const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
 
     const int widgetIconSize = iconSize();
     const int maxIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : widgetIconSize;
     const int maxIconHeight = widgetIconSize;
 
     const QHash<QByteArray, QVariant> values = data();
 
     bool updatePixmap = (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight);
     if (!updatePixmap && m_dirtyContent) {
         updatePixmap = m_dirtyContentRoles.isEmpty() || m_dirtyContentRoles.contains("iconPixmap") || m_dirtyContentRoles.contains("iconName")
             || m_dirtyContentRoles.contains("iconOverlays");
     }
 
     if (updatePixmap) {
         m_pixmap = QPixmap();
 
         int sequenceIndex = hoverSequenceIndex();
 
         if (values.contains("hoverSequencePixmaps")) {
             // Use one of the hover sequence pixmaps instead of the default
             // icon pixmap.
 
             const QVector<QPixmap> pixmaps = values["hoverSequencePixmaps"].value<QVector<QPixmap>>();
 
             if (values.contains("hoverSequenceWraparoundPoint")) {
                 const float wap = values["hoverSequenceWraparoundPoint"].toFloat();
                 if (wap >= 1.0f) {
                     sequenceIndex %= static_cast<int>(wap);
                 }
             }
 
             const int loadedIndex = qMax(qMin(sequenceIndex, pixmaps.size() - 1), 0);
 
             if (loadedIndex != 0) {
                 m_pixmap = pixmaps[loadedIndex];
             }
         }
 
         if (m_pixmap.isNull()) {
             m_pixmap = values["iconPixmap"].value<QPixmap>();
         }
 
         if (m_pixmap.isNull()) {
             // Use the icon that fits to the MIME-type
             QString iconName = values["iconName"].toString();
             if (iconName.isEmpty()) {
                 // The icon-name has not been not resolved by KFileItemModelRolesUpdater,
                 // use a generic icon as fallback
                 iconName = QStringLiteral("unknown");
             }
             const QStringList overlays = values["iconOverlays"].toStringList();
             const bool hasFocus = scene()->views()[0]->parentWidget()->hasFocus();
             m_pixmap = pixmapForIcon(iconName,
                                      overlays,
                                      maxIconHeight,
                                      m_layout != IconsLayout && isActiveWindow() && isSelected() && hasFocus ? QIcon::Selected : QIcon::Normal);
 
         } else if (m_pixmap.width() / m_pixmap.devicePixelRatio() != maxIconWidth || m_pixmap.height() / m_pixmap.devicePixelRatio() != maxIconHeight) {
             // A custom pixmap has been applied. Assure that the pixmap
             // is scaled to the maximum available size.
             KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight) * dpr);
         }
 
         if (m_pixmap.isNull()) {
             m_hoverPixmap = QPixmap();
             return;
         }
 
         if (m_isCut) {
             KIconEffect *effect = KIconLoader::global()->iconEffect();
             m_pixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
         }
 
         if (m_isHidden) {
             KIconEffect::semiTransparent(m_pixmap);
         }
 
         if (m_layout == IconsLayout && isSelected()) {
             const QColor color = palette().brush(QPalette::Normal, QPalette::Highlight).color();
             QImage image = m_pixmap.toImage();
             if (image.isNull()) {
                 m_hoverPixmap = QPixmap();
                 return;
             }
             KIconEffect::colorize(image, color, 0.8f);
             m_pixmap = QPixmap::fromImage(image);
         }
     }
 
     if (!m_overlay.isNull()) {
         QPainter painter(&m_pixmap);
         painter.drawPixmap(0, (m_pixmap.height() - m_overlay.height()) / m_pixmap.devicePixelRatio(), m_overlay);
     }
 
     int scaledIconSize = 0;
     if (iconOnTop) {
         const TextInfo *textInfo = m_textInfo.value("text");
         scaledIconSize = static_cast<int>(textInfo->pos.y() - 2 * padding);
     } else {
         const int textRowsCount = (m_layout == CompactLayout) ? visibleRoles().count() : 1;
         const qreal requiredTextHeight = textRowsCount * m_customizedFontMetrics.height();
         scaledIconSize = (requiredTextHeight < maxIconHeight) ? widgetSize.height() - 2 * padding : maxIconHeight;
     }
 
     const int maxScaledIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : scaledIconSize;
     const int maxScaledIconHeight = scaledIconSize;
 
     m_scaledPixmapSize = m_pixmap.size();
     m_scaledPixmapSize.scale(maxScaledIconWidth * dpr, maxScaledIconHeight * dpr, Qt::KeepAspectRatio);
     m_scaledPixmapSize = m_scaledPixmapSize / dpr;
 
     if (iconOnTop) {
         // Center horizontally and align on bottom within the icon-area
         m_pixmapPos.setX((widgetSize.width() - m_scaledPixmapSize.width()) / 2.0);
         m_pixmapPos.setY(padding + scaledIconSize - m_scaledPixmapSize.height());
     } else {
         // Center horizontally and vertically within the icon-area
         const TextInfo *textInfo = m_textInfo.value("text");
         m_pixmapPos.setX(textInfo->pos.x() - 2.0 * padding - (scaledIconSize + m_scaledPixmapSize.width()) / 2.0);
 
         // Derive icon's vertical center from the center of the text frame, including
         // any necessary adjustment if the font's midline is offset from the frame center
         const qreal midlineShift = m_customizedFontMetrics.height() / 2.0 - m_customizedFontMetrics.descent() - m_customizedFontMetrics.capHeight() / 2.0;
         m_pixmapPos.setY(m_textRect.center().y() + midlineShift - m_scaledPixmapSize.height() / 2.0);
     }
 
     if (m_layout == IconsLayout) {
         m_iconRect = QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize));
     } else {
         const qreal widthOffset = widgetIconSize - m_scaledPixmapSize.width();
         const qreal heightOffset = widgetIconSize - m_scaledPixmapSize.height();
         const QPointF squareIconPos(m_pixmapPos.x() - 0.5 * widthOffset, m_pixmapPos.y() - 0.5 * heightOffset);
         const QSizeF squareIconSize(widgetIconSize, widgetIconSize);
         m_iconRect = QRectF(squareIconPos, squareIconSize);
     }
 
     // Prepare the pixmap that is used when the item gets hovered
     if (isHovered()) {
         m_hoverPixmap = m_pixmap;
         KIconEffect *effect = KIconLoader::global()->iconEffect();
         // In the KIconLoader terminology, active = hover.
         if (effect->hasEffect(KIconLoader::Desktop, KIconLoader::ActiveState)) {
             m_hoverPixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::ActiveState);
         } else {
             m_hoverPixmap = m_pixmap;
         }
     } else if (hoverOpacity() <= 0.0) {
         // No hover animation is ongoing. Clear m_hoverPixmap to save memory.
         m_hoverPixmap = QPixmap();
     }
 }
 
 void KStandardItemListWidget::updateTextsCache()
 {
     QTextOption textOption;
     switch (m_layout) {
     case IconsLayout:
         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
         textOption.setAlignment(Qt::AlignHCenter);
         break;
     case CompactLayout:
     case DetailsLayout:
         textOption.setAlignment(Qt::AlignLeft);
         textOption.setWrapMode(QTextOption::NoWrap);
         break;
     default:
         Q_ASSERT(false);
         break;
     }
 
     qDeleteAll(m_textInfo);
     m_textInfo.clear();
     for (int i = 0; i < m_sortedVisibleRoles.count(); ++i) {
         TextInfo *textInfo = new TextInfo();
         textInfo->staticText.setTextFormat(Qt::PlainText);
         textInfo->staticText.setPerformanceHint(QStaticText::AggressiveCaching);
         textInfo->staticText.setTextOption(textOption);
         m_textInfo.insert(m_sortedVisibleRoles[i], textInfo);
     }
 
     switch (m_layout) {
     case IconsLayout:
         updateIconsLayoutTextCache();
         break;
     case CompactLayout:
         updateCompactLayoutTextCache();
         break;
     case DetailsLayout:
         updateDetailsLayoutTextCache();
         break;
     default:
         Q_ASSERT(false);
         break;
     }
 
     const TextInfo *ratingTextInfo = m_textInfo.value("rating");
     if (ratingTextInfo) {
         // The text of the rating-role has been set to empty to get
         // replaced by a rating-image showing the rating as stars.
         const KItemListStyleOption &option = styleOption();
         QSizeF ratingSize = preferredRatingSize(option);
 
         const qreal availableWidth = (m_layout == DetailsLayout) ? columnWidth("rating") - columnPadding(option) : size().width();
         if (ratingSize.width() > availableWidth) {
             ratingSize.rwidth() = availableWidth;
         }
         const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
         m_rating = QPixmap(ratingSize.toSize() * dpr);
         m_rating.setDevicePixelRatio(dpr);
         m_rating.fill(Qt::transparent);
 
         QPainter painter(&m_rating);
         const QRect rect(QPoint(0, 0), ratingSize.toSize());
         const int rating = data().value("rating").toInt();
         KRatingPainter::paintRating(&painter, rect, Qt::AlignJustify | Qt::AlignVCenter, rating);
     } else if (!m_rating.isNull()) {
         m_rating = QPixmap();
     }
 }
 
 QString KStandardItemListWidget::elideRightKeepExtension(const QString &text, int elidingWidth) const
 {
     const auto extensionIndex = text.lastIndexOf('.');
     if (extensionIndex != -1) {
         // has file extension
         const auto extensionLength = text.length() - extensionIndex;
         const auto extensionWidth = m_customizedFontMetrics.horizontalAdvance(text.right(extensionLength));
         if (elidingWidth > extensionWidth && extensionLength < 6 && (float(extensionWidth) / float(elidingWidth)) < 0.3) {
             // if we have room to display the file extension and the extension is not too long
             QString ret = m_customizedFontMetrics.elidedText(text.chopped(extensionLength), Qt::ElideRight, elidingWidth - extensionWidth);
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
             ret.append(text.rightRef(extensionLength));
 #else
             ret.append(QStringView(text).right(extensionLength));
 #endif
             return ret;
         }
     }
     return m_customizedFontMetrics.elidedText(text, Qt::ElideRight, elidingWidth);
 }
 
 QString KStandardItemListWidget::escapeString(const QString &text) const
 {
     QString escaped(text);
 
     const QChar returnSymbol(0x21b5);
     escaped.replace('\n', returnSymbol);
 
     return escaped;
 }
 
 void KStandardItemListWidget::updateIconsLayoutTextCache()
 {
     //      +------+
     //      | Icon |
     //      +------+
     //
     //    Name role that
     // might get wrapped above
     //    several lines.
     //  Additional role 1
     //  Additional role 2
 
     const QHash<QByteArray, QVariant> values = data();
 
     const KItemListStyleOption &option = styleOption();
     const qreal padding = option.padding;
     const qreal maxWidth = size().width() - 2 * padding;
     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
 
     // Initialize properties for the "text" role. It will be used as anchor
     // for initializing the position of the other roles.
     TextInfo *nameTextInfo = m_textInfo.value("text");
     const QString nameText = KStringHandler::preProcessWrap(escapeString(values["text"].toString()));
     nameTextInfo->staticText.setText(nameText);
 
     // Calculate the number of lines required for the name and the required width
     qreal nameWidth = 0;
     qreal nameHeight = 0;
     QTextLine line;
 
     QTextLayout layout(nameTextInfo->staticText.text(), m_customizedFont);
     layout.setTextOption(nameTextInfo->staticText.textOption());
     layout.beginLayout();
     int nameLineIndex = 0;
     while ((line = layout.createLine()).isValid()) {
         line.setLineWidth(maxWidth);
         nameWidth = qMax(nameWidth, line.naturalTextWidth());
         nameHeight += line.height();
 
         ++nameLineIndex;
         if (nameLineIndex == option.maxTextLines) {
             // The maximum number of textlines has been reached. If this is
             // the case provide an elided text if necessary.
             const int textLength = line.textStart() + line.textLength();
             if (textLength < nameText.length()) {
                 // Elide the last line of the text
                 qreal elidingWidth = maxWidth;
                 qreal lastLineWidth;
                 do {
                     QString lastTextLine = nameText.mid(line.textStart());
                     lastTextLine = elideRightKeepExtension(lastTextLine, elidingWidth);
                     const QString elidedText = nameText.left(line.textStart()) + lastTextLine;
                     nameTextInfo->staticText.setText(elidedText);
 
                     lastLineWidth = m_customizedFontMetrics.horizontalAdvance(lastTextLine);
 
                     // We do the text eliding in a loop with decreasing width (1 px / iteration)
                     // to avoid problems related to different width calculation code paths
                     // within Qt. (see bug 337104)
                     elidingWidth -= 1.0;
                 } while (lastLineWidth > maxWidth);
 
                 nameWidth = qMax(nameWidth, lastLineWidth);
             }
             break;
         }
     }
     layout.endLayout();
 
     // Use one line for each additional information
     nameTextInfo->staticText.setTextWidth(maxWidth);
     nameTextInfo->pos = QPointF(padding, iconSize() + 2 * padding);
     m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2, nameTextInfo->pos.y(), nameWidth, nameHeight);
 
     // Calculate the position for each additional information
     qreal y = nameTextInfo->pos.y() + nameHeight;
     for (const QByteArray &role : std::as_const(m_sortedVisibleRoles)) {
         if (role == "text") {
             continue;
         }
 
         const QString text = roleText(role, values);
         TextInfo *textInfo = m_textInfo.value(role);
         textInfo->staticText.setText(text);
 
         qreal requiredWidth = 0;
 
         QTextLayout layout(text, m_customizedFont);
         QTextOption textOption;
         textOption.setWrapMode(QTextOption::NoWrap);
         layout.setTextOption(textOption);
 
         layout.beginLayout();
         QTextLine textLine = layout.createLine();
         if (textLine.isValid()) {
             textLine.setLineWidth(maxWidth);
             requiredWidth = textLine.naturalTextWidth();
             if (requiredWidth > maxWidth) {
                 const QString elidedText = elideRightKeepExtension(text, maxWidth);
                 textInfo->staticText.setText(elidedText);
                 requiredWidth = m_customizedFontMetrics.horizontalAdvance(elidedText);
             } else if (role == "rating") {
                 // Use the width of the rating pixmap, because the rating text is empty.
                 requiredWidth = m_rating.width() / m_rating.devicePixelRatioF();
             }
         }
         layout.endLayout();
 
         textInfo->pos = QPointF(padding, y);
         textInfo->staticText.setTextWidth(maxWidth);
 
         const QRectF textRect(padding + (maxWidth - requiredWidth) / 2, y, requiredWidth, lineSpacing);
 
         // Ignore empty roles. Avoids a text rect taller than the area that actually contains text.
         if (!textRect.isEmpty()) {
             m_textRect |= textRect;
         }
 
         y += lineSpacing;
     }
 
     // Add a padding to the text rectangle
     m_textRect.adjust(-padding, -padding, padding, padding);
 }
 
 void KStandardItemListWidget::updateCompactLayoutTextCache()
 {
     // +------+  Name role
     // | Icon |  Additional role 1
     // +------+  Additional role 2
 
     const QHash<QByteArray, QVariant> values = data();
 
     const KItemListStyleOption &option = styleOption();
     const qreal widgetHeight = size().height();
     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
     const qreal textLinesHeight = qMax(visibleRoles().count(), 1) * lineSpacing;
 
     qreal maximumRequiredTextWidth = 0;
     const qreal x = option.padding * 3 + iconSize();
     qreal y = qRound((widgetHeight - textLinesHeight) / 2);
     const qreal maxWidth = size().width() - x - option.padding;
     for (const QByteArray &role : std::as_const(m_sortedVisibleRoles)) {
         const QString text = escapeString(roleText(role, values));
         TextInfo *textInfo = m_textInfo.value(role);
         textInfo->staticText.setText(text);
 
         qreal requiredWidth = m_customizedFontMetrics.horizontalAdvance(text);
         if (requiredWidth > maxWidth) {
             requiredWidth = maxWidth;
             const QString elidedText = elideRightKeepExtension(text, maxWidth);
             textInfo->staticText.setText(elidedText);
         }
 
         textInfo->pos = QPointF(x, y);
         textInfo->staticText.setTextWidth(maxWidth);
 
         maximumRequiredTextWidth = qMax(maximumRequiredTextWidth, requiredWidth);
 
         y += lineSpacing;
     }
 
     m_textRect = QRectF(x - option.padding, 0, maximumRequiredTextWidth + 2 * option.padding, widgetHeight);
 }
 
 void KStandardItemListWidget::updateDetailsLayoutTextCache()
 {
     // Precondition: Requires already updated m_expansionArea
     // to determine the left position.
 
     // +------+
     // | Icon |  Name role   Additional role 1   Additional role 2
     // +------+
     m_textRect = QRectF();
 
     const KItemListStyleOption &option = styleOption();
     const QHash<QByteArray, QVariant> values = data();
 
     const qreal widgetHeight = size().height();
     const int fontHeight = m_customizedFontMetrics.height();
 
     const qreal columnWidthInc = columnPadding(option);
     qreal firstColumnInc = iconSize();
     if (m_supportsItemExpanding) {
         firstColumnInc += (m_expansionArea.left() + m_expansionArea.right() + widgetHeight) / 2;
     } else {
         firstColumnInc += option.padding + sidePadding();
     }
 
     qreal x = firstColumnInc;
     const qreal y = qMax(qreal(option.padding), (widgetHeight - fontHeight) / 2);
 
     for (const QByteArray &role : std::as_const(m_sortedVisibleRoles)) {
         QString text = roleText(role, values);
 
         // Elide the text in case it does not fit into the available column-width
         qreal requiredWidth = m_customizedFontMetrics.horizontalAdvance(text);
         const qreal roleWidth = columnWidth(role);
         qreal availableTextWidth = roleWidth - columnWidthInc;
 
         const bool isTextRole = (role == "text");
         if (isTextRole) {
             text = escapeString(text);
             availableTextWidth -= firstColumnInc - sidePadding();
         }
 
         if (requiredWidth > availableTextWidth) {
             text = elideRightKeepExtension(text, availableTextWidth);
             requiredWidth = m_customizedFontMetrics.horizontalAdvance(text);
         }
 
         TextInfo *textInfo = m_textInfo.value(role);
         textInfo->staticText.setText(text);
         textInfo->pos = QPointF(x + columnWidthInc / 2, y);
         x += roleWidth;
 
         if (isTextRole) {
             const qreal textWidth = option.extendedSelectionRegion ? size().width() - textInfo->pos.x() : requiredWidth + 2 * option.padding;
             m_textRect = QRectF(textInfo->pos.x() - option.padding, 0, textWidth, size().height());
 
             // The column after the name should always be aligned on the same x-position independent
             // from the expansion-level shown in the name column
             x -= firstColumnInc - sidePadding();
         } else if (isRoleRightAligned(role)) {
             textInfo->pos.rx() += roleWidth - requiredWidth - columnWidthInc;
         }
     }
 }
 
 void KStandardItemListWidget::updateAdditionalInfoTextColor()
 {
     QColor c1;
     const bool hasFocus = scene()->views()[0]->parentWidget()->hasFocus();
     if (m_customTextColor.isValid()) {
         c1 = m_customTextColor;
     } else if (isSelected() && hasFocus && (m_layout != DetailsLayout || m_highlightEntireRow)) {
         // The detail text colour needs to match the main text (HighlightedText) for the same level
         // of readability. We short circuit early here to avoid interpolating with another colour.
         m_additionalInfoTextColor = styleOption().palette.color(QPalette::HighlightedText);
         return;
     } else {
         c1 = styleOption().palette.text().color();
     }
 
     // For the color of the additional info the inactive text color
     // is not used as this might lead to unreadable text for some color schemes. Instead
     // the text color c1 is slightly mixed with the background color.
     const QColor c2 = styleOption().palette.base().color();
     const int p1 = 70;
     const int p2 = 100 - p1;
     m_additionalInfoTextColor =
         QColor((c1.red() * p1 + c2.red() * p2) / 100, (c1.green() * p1 + c2.green() * p2) / 100, (c1.blue() * p1 + c2.blue() * p2) / 100);
 }
 
 void KStandardItemListWidget::drawPixmap(QPainter *painter, const QPixmap &pixmap)
 {
     if (m_scaledPixmapSize != pixmap.size() / pixmap.devicePixelRatio()) {
         const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
         QPixmap scaledPixmap = pixmap;
         KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize * dpr);
         scaledPixmap.setDevicePixelRatio(dpr);
         painter->drawPixmap(m_pixmapPos, scaledPixmap);
 
 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
         painter->setPen(Qt::blue);
         painter->drawRect(QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize)));
 #endif
     } else {
         painter->drawPixmap(m_pixmapPos, pixmap);
     }
 }
 
 void KStandardItemListWidget::drawSiblingsInformation(QPainter *painter)
 {
     const int siblingSize = size().height();
     const int x = (m_expansionArea.left() + m_expansionArea.right() - siblingSize) / 2;
     QRect siblingRect(x, 0, siblingSize, siblingSize);
 
     bool isItemSibling = true;
 
     const QBitArray siblings = siblingsInformation();
     QStyleOption option;
     const auto normalColor = option.palette.color(normalTextColorRole());
     const auto highlightColor = option.palette.color(expansionAreaHovered() ? QPalette::Highlight : normalTextColorRole());
     for (int i = siblings.count() - 1; i >= 0; --i) {
         option.rect = siblingRect;
         option.state = siblings.at(i) ? QStyle::State_Sibling : QStyle::State_None;
         if (isItemSibling) {
             option.state |= QStyle::State_Item;
             if (m_isExpandable) {
                 option.state |= QStyle::State_Children;
             }
             if (data().value("isExpanded").toBool()) {
                 option.state |= QStyle::State_Open;
             }
             option.palette.setColor(QPalette::Text, highlightColor);
             isItemSibling = false;
         } else {
             option.palette.setColor(QPalette::Text, normalColor);
         }
 
         style()->drawPrimitive(QStyle::PE_IndicatorBranch, &option, painter);
 
         siblingRect.translate(-siblingRect.width(), 0);
     }
 }
 
 QRectF KStandardItemListWidget::roleEditingRect(const QByteArray &role) const
 {
     const TextInfo *textInfo = m_textInfo.value(role);
     if (!textInfo) {
         return QRectF();
     }
 
     QRectF rect(textInfo->pos, textInfo->staticText.size());
     if (m_layout == DetailsLayout) {
         rect.setWidth(columnWidth(role) - rect.x());
     }
 
     return rect;
 }
 
 void KStandardItemListWidget::closeRoleEditor()
 {
     disconnect(m_roleEditor, &KItemListRoleEditor::roleEditingCanceled, this, &KStandardItemListWidget::slotRoleEditingCanceled);
     disconnect(m_roleEditor, &KItemListRoleEditor::roleEditingFinished, this, &KStandardItemListWidget::slotRoleEditingFinished);
 
     if (m_roleEditor->hasFocus()) {
         // If the editing was not ended by a FocusOut event, we have
         // to transfer the keyboard focus back to the KItemListContainer.
         scene()->views()[0]->parentWidget()->setFocus();
     }
 
     if (m_oldRoleEditor) {
         m_oldRoleEditor->deleteLater();
     }
     m_oldRoleEditor = m_roleEditor;
     m_roleEditor->hide();
     m_roleEditor = nullptr;
 }
 
 QPixmap KStandardItemListWidget::pixmapForIcon(const QString &name, const QStringList &overlays, int size, QIcon::Mode mode) const
 {
     static const QIcon fallbackIcon = QIcon::fromTheme(QStringLiteral("unknown"));
     const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
 
     size *= dpr;
 
     const QString key = "KStandardItemListWidget:" % name % ":" % overlays.join(QLatin1Char(':')) % ":" % QString::number(size) % "@" % QString::number(dpr)
         % ":" % QString::number(mode);
     QPixmap pixmap;
 
     if (!QPixmapCache::find(key, &pixmap)) {
         QIcon icon = QIcon::fromTheme(name);
         if (icon.isNull()) {
             icon = QIcon(name);
         }
         if (icon.isNull() || icon.pixmap(size / dpr, size / dpr, mode).isNull()) {
             icon = fallbackIcon;
         }
 
         pixmap = icon.pixmap(QSize(size / dpr, size / dpr), dpr, mode);
         if (pixmap.width() != size || pixmap.height() != size) {
             KPixmapModifier::scale(pixmap, QSize(size, size));
         }
 
         // Strangely KFileItem::overlays() returns empty string-values, so
         // we need to check first whether an overlay must be drawn at all.
         // It is more efficient to do it here, as KIconLoader::drawOverlays()
         // assumes that an overlay will be drawn and has some additional
         // setup time.
         for (const QString &overlay : overlays) {
             if (!overlay.isEmpty()) {
                 int state = KIconLoader::DefaultState;
 
                 switch (mode) {
                 case QIcon::Normal:
                     break;
                 case QIcon::Active:
                     state = KIconLoader::ActiveState;
                     break;
                 case QIcon::Disabled:
                     state = KIconLoader::DisabledState;
                     break;
                 case QIcon::Selected:
                     state = KIconLoader::SelectedState;
                     break;
                 }
 
                 // There is at least one overlay, draw all overlays above m_pixmap
                 // and cancel the check
                 KIconLoader::global()->drawOverlays(overlays, pixmap, KIconLoader::Desktop, state);
                 break;
             }
         }
 
         QPixmapCache::insert(key, pixmap);
     }
     pixmap.setDevicePixelRatio(dpr);
 
     return pixmap;
 }
 
 QSizeF KStandardItemListWidget::preferredRatingSize(const KItemListStyleOption &option)
 {
     const qreal height = option.fontMetrics.ascent();
     return QSizeF(height * 5, height);
 }
 
 qreal KStandardItemListWidget::columnPadding(const KItemListStyleOption &option)
 {
     return option.padding * 6;
 }
 
 #include "moc_kstandarditemlistwidget.cpp"