src/kitemviews/kstandarditemlistwidget.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2012 Peter Penz <peter.penz19@gmail.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #include "kstandarditemlistwidget.h"
   8
   9 #include "dolphin_contentdisplaysettings.h"
  10 #include "kfileitemlistview.h"
  11 #include "private/kfileitemclipboard.h"
  12 #include "private/kitemlistroleeditor.h"
  13 #include "private/kitemviewsutils.h"
  14 #include "private/kpixmapmodifier.h"
  15
  16 #include <KIconEffect>
  17 #include <KIconLoader>
  18 #include <KIconUtils>
  19 #include <KRatingPainter>
  20 #include <KStringHandler>
  21 #include <klocalizedstring.h>
  22
  23 #include <QApplication>
  24 #include <QGraphicsScene>
  25 #include <QGraphicsSceneResizeEvent>
  26 #include <QGraphicsView>
  27 #include <QPixmapCache>
  28 #include <QStyleOption>
  29 #include <QTextBoundaryFinder>
  30 #include <QVariantAnimation>
  31
  32 // #define KSTANDARDITEMLISTWIDGET_DEBUG
  33
  34 KStandardItemListWidgetInformant::KStandardItemListWidgetInformant()
  35     : KItemListWidgetInformant()
  36 {
  37 }
  38
  39 KStandardItemListWidgetInformant::~KStandardItemListWidgetInformant()
  40 {
  41 }
  42
  43 void KStandardItemListWidgetInformant::calculateItemSizeHints(QVector<std::pair<qreal, bool>> &logicalHeightHints,
  44                                                               qreal &logicalWidthHint,
  45                                                               const KItemListView *view) const
  46 {
  47     switch (static_cast<const KStandardItemListView *>(view)->itemLayout()) {
  48     case KStandardItemListView::IconsLayout:
  49         calculateIconsLayoutItemSizeHints(logicalHeightHints, logicalWidthHint, view);
  50         break;
  51
  52     case KStandardItemListView::CompactLayout:
  53         calculateCompactLayoutItemSizeHints(logicalHeightHints, logicalWidthHint, view);
  54         break;
  55
  56     case KStandardItemListView::DetailsLayout:
  57         calculateDetailsLayoutItemSizeHints(logicalHeightHints, logicalWidthHint, view);
  58         break;
  59
  60     default:
  61         Q_ASSERT(false);
  62         break;
  63     }
  64 }
  65
  66 qreal KStandardItemListWidgetInformant::preferredRoleColumnWidth(const QByteArray &role, int index, const KItemListView *view) const
  67 {
  68     const QHash<QByteArray, QVariant> values = view->model()->data(index);
  69     const KItemListStyleOption &option = view->styleOption();
  70
  71     const QString text = roleText(role, values);
  72     qreal width = KStandardItemListWidget::columnPadding(option);
  73
  74     const QFontMetrics &normalFontMetrics = option.fontMetrics;
  75     const QFontMetrics linkFontMetrics(customizedFontForLinks(option.font));
  76
  77     if (role == "rating") {
  78         width += KStandardItemListWidget::preferredRatingSize(option).width();
  79     } else {
  80         // If current item is a link, we use the customized link font metrics instead of the normal font metrics.
  81         const QFontMetrics &fontMetrics = itemIsLink(index, view) ? linkFontMetrics : normalFontMetrics;
  82
  83         width += fontMetrics.horizontalAdvance(text);
  84
  85         if (role == "text") {
  86             if (view->supportsItemExpanding()) {
  87                 // Increase the width by the expansion-toggle and the current expansion level
  88                 const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
  89                 const qreal height = option.padding * 2 + qMax(option.iconSize, fontMetrics.height());
  90                 width += (expandedParentsCount + 1) * height;
  91             }
  92
  93             // Increase the width by the required space for the icon
  94             width += option.padding * 2 + option.iconSize;
  95         }
  96     }
  97
  98     return width;
  99 }
 100
 101 QString KStandardItemListWidgetInformant::itemText(int index, const KItemListView *view) const
 102 {
 103     return view->model()->data(index).value("text").toString();
 104 }
 105
 106 bool KStandardItemListWidgetInformant::itemIsLink(int index, const KItemListView *view) const
 107 {
 108     Q_UNUSED(index)
 109     Q_UNUSED(view)
 110     return false;
 111 }
 112
 113 QString KStandardItemListWidgetInformant::roleText(const QByteArray &role, const QHash<QByteArray, QVariant> &values, ForUsageAs forUsageAs) const
 114 {
 115     if (role == "rating") {
 116         if (forUsageAs == ForUsageAs::DisplayedText) {
 117             // Always use an empty text, as the rating is shown by the image m_rating.
 118             return QString();
 119         } else {
 120             const int rating{values.value(role).toInt()};
 121             // Check if there are half stars
 122             if (rating % 2) {
 123                 return i18ncp("@accessible rating", "%1 and a half stars", "%1 and a half stars", rating / 2);
 124             }
 125             return i18ncp("@accessible rating", "%1 star", "%1 stars", rating / 2);
 126         }
 127     }
 128     return values.value(role).toString();
 129 }
 130
 131 QFont KStandardItemListWidgetInformant::customizedFontForLinks(const QFont &baseFont) const
 132 {
 133     return baseFont;
 134 }
 135
 136 void KStandardItemListWidgetInformant::calculateIconsLayoutItemSizeHints(QVector<std::pair<qreal, bool>> &logicalHeightHints,
 137                                                                          qreal &logicalWidthHint,
 138                                                                          const KItemListView *view) const
 139 {
 140     const KItemListStyleOption &option = view->styleOption();
 141     const QFont &normalFont = option.font;
 142     const int additionalRolesCount = qMax(view->visibleRoles().count() - 1, 0);
 143
 144     const qreal itemWidth = view->itemSize().width();
 145     const qreal maxWidth = itemWidth - 2 * option.padding;
 146     const qreal additionalRolesSpacing = additionalRolesCount * option.fontMetrics.lineSpacing();
 147     const qreal spacingAndIconHeight = option.iconSize + option.padding * 3;
 148
 149     const QFont linkFont = customizedFontForLinks(normalFont);
 150
 151     QTextOption textOption(Qt::AlignHCenter);
 152     textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 153
 154     for (int index = 0; index < logicalHeightHints.count(); ++index) {
 155         if (logicalHeightHints.at(index).first > 0.0) {
 156             continue;
 157         }
 158
 159         // If the current item is a link, we use the customized link font instead of the normal font.
 160         const QFont &font = itemIsLink(index, view) ? linkFont : normalFont;
 161
 162         const QString &text = KStringHandler::preProcessWrap(itemText(index, view));
 163
 164         // Calculate the number of lines required for wrapping the name
 165         qreal textHeight = 0;
 166         QTextLayout layout(text, font);
 167         layout.setTextOption(textOption);
 168         layout.beginLayout();
 169         QTextLine line;
 170         int lineCount = 0;
 171         bool isElided = false;
 172         while ((line = layout.createLine()).isValid()) {
 173             line.setLineWidth(maxWidth);
 174             line.naturalTextWidth();
 175             textHeight += line.height();
 176
 177             ++lineCount;
 178             if (lineCount == option.maxTextLines) {
 179                 isElided = layout.createLine().isValid();
 180                 break;
 181             }
 182         }
 183         layout.endLayout();
 184
 185         // Add one line for each additional information
 186         textHeight += additionalRolesSpacing;
 187
 188         logicalHeightHints[index].first = textHeight + spacingAndIconHeight;
 189         logicalHeightHints[index].second = isElided;
 190     }
 191
 192     logicalWidthHint = itemWidth;
 193 }
 194
 195 void KStandardItemListWidgetInformant::calculateCompactLayoutItemSizeHints(QVector<std::pair<qreal, bool>> &logicalHeightHints,
 196                                                                            qreal &logicalWidthHint,
 197                                                                            const KItemListView *view) const
 198 {
 199     const KItemListStyleOption &option = view->styleOption();
 200     const QFontMetrics &normalFontMetrics = option.fontMetrics;
 201     const int additionalRolesCount = qMax(view->visibleRoles().count() - 1, 0);
 202
 203     const QList<QByteArray> &visibleRoles = view->visibleRoles();
 204     const bool showOnlyTextRole = (visibleRoles.count() == 1) && (visibleRoles.first() == "text");
 205     const qreal maxWidth = option.maxTextWidth;
 206     const qreal paddingAndIconWidth = option.padding * 4 + option.iconSize;
 207     const qreal height = option.padding * 2 + qMax(option.iconSize, (1 + additionalRolesCount) * normalFontMetrics.lineSpacing());
 208
 209     const QFontMetrics linkFontMetrics(customizedFontForLinks(option.font));
 210
 211     for (int index = 0; index < logicalHeightHints.count(); ++index) {
 212         if (logicalHeightHints.at(index).first > 0.0) {
 213             continue;
 214         }
 215
 216         // If the current item is a link, we use the customized link font metrics instead of the normal font metrics.
 217         const QFontMetrics &fontMetrics = itemIsLink(index, view) ? linkFontMetrics : normalFontMetrics;
 218
 219         // For each row exactly one role is shown. Calculate the maximum required width that is necessary
 220         // to show all roles without horizontal clipping.
 221         qreal maximumRequiredWidth = 0.0;
 222
 223         if (showOnlyTextRole) {
 224             maximumRequiredWidth = fontMetrics.horizontalAdvance(itemText(index, view));
 225         } else {
 226             const QHash<QByteArray, QVariant> &values = view->model()->data(index);
 227             for (const QByteArray &role : visibleRoles) {
 228                 const QString &text = roleText(role, values);
 229                 const qreal requiredWidth = fontMetrics.horizontalAdvance(text);
 230                 maximumRequiredWidth = qMax(maximumRequiredWidth, requiredWidth);
 231             }
 232         }
 233
 234         qreal width = paddingAndIconWidth + maximumRequiredWidth;
 235         if (maxWidth > 0 && width > maxWidth) {
 236             width = maxWidth;
 237         }
 238
 239         logicalHeightHints[index].first = width;
 240     }
 241
 242     logicalWidthHint = height;
 243 }
 244
 245 void KStandardItemListWidgetInformant::calculateDetailsLayoutItemSizeHints(QVector<std::pair<qreal, bool>> &logicalHeightHints,
 246                                                                            qreal &logicalWidthHint,
 247                                                                            const KItemListView *view) const
 248 {
 249     const KItemListStyleOption &option = view->styleOption();
 250     const qreal height = option.padding * 2 + qMax(option.iconSize, option.fontMetrics.height());
 251     logicalHeightHints.fill(std::make_pair(height, false));
 252     logicalWidthHint = -1.0;
 253 }
 254
 255 KStandardItemListWidget::KStandardItemListWidget(KItemListWidgetInformant *informant, QGraphicsItem *parent)
 256     : KItemListWidget(informant, parent)
 257     , m_textInfo()
 258     , m_isCut(false)
 259     , m_isHidden(false)
 260     , m_customizedFont()
 261     , m_customizedFontMetrics(m_customizedFont)
 262     , m_isExpandable(false)
 263     , m_highlightEntireRow(false)
 264     , m_supportsItemExpanding(false)
 265     , m_dirtyLayout(true)
 266     , m_dirtyContent(true)
 267     , m_dirtyContentRoles()
 268     , m_layout(IconsLayout)
 269     , m_pixmapPos()
 270     , m_pixmap()
 271     , m_scaledPixmapSize()
 272     , m_columnWidthSum()
 273     , m_iconRect()
 274     , m_textRect()
 275     , m_sortedVisibleRoles()
 276     , m_expansionArea()
 277     , m_customTextColor()
 278     , m_additionalInfoTextColor()
 279     , m_overlays()
 280     , m_rating()
 281     , m_roleEditor(nullptr)
 282     , m_oldRoleEditor(nullptr)
 283 {
 284 }
 285
 286 KStandardItemListWidget::~KStandardItemListWidget()
 287 {
 288     qDeleteAll(m_textInfo);
 289     m_textInfo.clear();
 290
 291     if (m_roleEditor) {
 292         m_roleEditor->deleteLater();
 293     }
 294
 295     if (m_oldRoleEditor) {
 296         m_oldRoleEditor->deleteLater();
 297     }
 298 }
 299
 300 void KStandardItemListWidget::setLayout(Layout layout)
 301 {
 302     if (m_layout != layout) {
 303         m_layout = layout;
 304         m_dirtyLayout = true;
 305         updateAdditionalInfoTextColor();
 306         update();
 307     }
 308 }
 309
 310 void KStandardItemListWidget::setHighlightEntireRow(bool highlightEntireRow)
 311 {
 312     if (m_highlightEntireRow != highlightEntireRow) {
 313         m_highlightEntireRow = highlightEntireRow;
 314         m_dirtyLayout = true;
 315         update();
 316     }
 317 }
 318
 319 bool KStandardItemListWidget::highlightEntireRow() const
 320 {
 321     return m_highlightEntireRow;
 322 }
 323
 324 void KStandardItemListWidget::setSupportsItemExpanding(bool supportsItemExpanding)
 325 {
 326     if (m_supportsItemExpanding != supportsItemExpanding) {
 327         m_supportsItemExpanding = supportsItemExpanding;
 328         m_dirtyLayout = true;
 329         update();
 330     }
 331 }
 332
 333 bool KStandardItemListWidget::supportsItemExpanding() const
 334 {
 335     return m_supportsItemExpanding;
 336 }
 337
 338 void KStandardItemListWidget::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
 339 {
 340     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 341
 342     KItemListWidget::paint(painter, option, widget);
 343
 344     if (!m_expansionArea.isEmpty()) {
 345         drawSiblingsInformation(painter);
 346     }
 347
 348     auto pixmap = m_pixmap;
 349     if (!m_overlays.isEmpty()) {
 350         const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
 351
 352         const bool iconOnTop = (m_layout == IconsLayout);
 353         const KItemListStyleOption &option = styleOption();
 354         const qreal padding = option.padding;
 355
 356         const int widgetIconSize = iconSize();
 357         const int maxIconWidth = iconOnTop ? size().width() - 2 * padding : widgetIconSize;
 358         const int maxIconHeight = widgetIconSize;
 359
 360         pixmap = addOverlays(pixmap, m_overlays, QSize(maxIconWidth, maxIconHeight), dpr);
 361     }
 362
 363     const KItemListStyleOption &itemListStyleOption = styleOption();
 364     if (isHovered() && !pixmap.isNull()) {
 365         if (hoverOpacity() < 1.0) {
 366             /*
 367              * Linear interpolation between pixmap and m_hoverPixmap.
 368              *
 369              * Note that this cannot be achieved by painting m_hoverPixmap over
 370              * pixmap, even if the opacities are adjusted. For details see
 371              * https://git.reviewboard.kde.org/r/109614/
 372              */
 373             // Paint pixmap1 so that pixmap1 = pixmap * (1.0 - hoverOpacity())
 374             QPixmap pixmap1(pixmap.size());
 375             pixmap1.setDevicePixelRatio(pixmap.devicePixelRatio());
 376             pixmap1.fill(Qt::transparent);
 377             {
 378                 QPainter p(&pixmap1);
 379                 p.setOpacity(1.0 - hoverOpacity());
 380                 p.drawPixmap(0, 0, pixmap);
 381             }
 382
 383             // Paint pixmap2 so that pixmap2 = m_hoverPixmap * hoverOpacity()
 384             QPixmap pixmap2(pixmap1.size());
 385             pixmap2.setDevicePixelRatio(pixmap1.devicePixelRatio());
 386             pixmap2.fill(Qt::transparent);
 387             {
 388                 QPainter p(&pixmap2);
 389                 p.setOpacity(hoverOpacity());
 390                 p.drawPixmap(0, 0, m_pixmap);
 391             }
 392
 393             // Paint pixmap2 on pixmap1 using CompositionMode_Plus
 394             // Now pixmap1 = pixmap2 + pixmap * (1.0 - hoverOpacity())
 395             //             = m_hoverPixmap * hoverOpacity() + pixmap * (1.0 - hoverOpacity())
 396             {
 397                 QPainter p(&pixmap1);
 398                 p.setCompositionMode(QPainter::CompositionMode_Plus);
 399                 p.drawPixmap(0, 0, pixmap2);
 400             }
 401
 402             // Finally paint pixmap1 on the widget
 403             drawPixmap(painter, pixmap1);
 404         } else {
 405             drawPixmap(painter, pixmap);
 406         }
 407     } else if (!pixmap.isNull()) {
 408         drawPixmap(painter, pixmap);
 409     }
 410
 411     painter->setFont(m_customizedFont);
 412     painter->setPen(textColor(*widget));
 413     const TextInfo *textInfo = m_textInfo.value("text");
 414
 415     if (!textInfo) {
 416         // It seems that we can end up here even if m_textInfo does not contain
 417         // the key "text", see bug 306167. According to triggerCacheRefreshing(),
 418         // this can only happen if the index is negative. This can happen when
 419         // the item is about to be removed, see KItemListView::slotItemsRemoved().
 420         // TODO: try to reproduce the crash and find a better fix.
 421         return;
 422     }
 423
 424     painter->drawStaticText(textInfo->pos, textInfo->staticText);
 425
 426     bool clipAdditionalInfoBounds = false;
 427     if (m_supportsItemExpanding && m_sortedVisibleRoles.count() > 1) {
 428         // Prevent a possible overlapping of the additional-information-texts with the icon.
 429         // This will happen if the user has resized the width of the name-column to be very narrow while having folders expanded.
 430         // We only want to draw additional info text outside the area of the icon or expansion area, so we set a clip rect that does not contain the icon area.
 431         // This needs to work both for left-to-right as well as right-to-left layout directions.
 432         const TextInfo *potentiallyOverlappingRoleText = m_textInfo.value(m_sortedVisibleRoles[1]); // Only the first column after the name column can overlap.
 433         if (layoutDirection() == Qt::LeftToRight) { // In left-to-right languages the left end of text would overlap. This is mirrored for right-to-left.
 434             const qreal minX = m_iconRect.right() + 2 * itemListStyleOption.padding;
 435             if (potentiallyOverlappingRoleText->pos.x() < minX) {
 436                 clipAdditionalInfoBounds = true;
 437                 painter->save();
 438                 painter->setClipRect(minX, 0, size().width() - minX, size().height(), Qt::IntersectClip);
 439             }
 440         } else {
 441             const qreal maxX = m_iconRect.left() - 2 * itemListStyleOption.padding;
 442             if (potentiallyOverlappingRoleText->pos.x() + m_customizedFontMetrics.horizontalAdvance(potentiallyOverlappingRoleText->staticText.text()) > maxX) {
 443                 clipAdditionalInfoBounds = true;
 444                 painter->save();
 445                 painter->setClipRect(0, 0, maxX, size().height(), Qt::IntersectClip);
 446             }
 447         }
 448     }
 449
 450     painter->setPen(m_additionalInfoTextColor);
 451     painter->setFont(m_customizedFont);
 452
 453     for (int i = 1; i < m_sortedVisibleRoles.count(); ++i) {
 454         const TextInfo *textInfo = m_textInfo.value(m_sortedVisibleRoles[i]);
 455         painter->drawStaticText(textInfo->pos, textInfo->staticText);
 456     }
 457
 458     if (!m_rating.isNull()) {
 459         const TextInfo *ratingTextInfo = m_textInfo.value("rating");
 460         QPointF pos = ratingTextInfo->pos;
 461         const Qt::Alignment align = ratingTextInfo->staticText.textOption().alignment();
 462         if (align & Qt::AlignHCenter) {
 463             pos.rx() += (size().width() - m_rating.width() / m_rating.devicePixelRatioF()) / 2 - 2;
 464         }
 465         painter->drawPixmap(pos, m_rating);
 466     }
 467
 468     if (clipAdditionalInfoBounds) {
 469         painter->restore();
 470     }
 471
 472 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
 473     painter->setBrush(Qt::NoBrush);
 474     painter->setPen(Qt::green);
 475     painter->drawRect(m_iconRect);
 476
 477     painter->setPen(Qt::blue);
 478     painter->drawRect(m_textRect);
 479
 480     painter->setPen(Qt::red);
 481     painter->drawText(QPointF(0, m_customizedFontMetrics.height()), QString::number(index()));
 482     painter->drawRect(rect());
 483 #endif
 484 }
 485
 486 QRectF KStandardItemListWidget::textRect() const
 487 {
 488     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 489     return m_textRect;
 490 }
 491
 492 QRectF KStandardItemListWidget::textFocusRect() const
 493 {
 494     // In the compact- and details-layout a larger textRect() is returned to be aligned
 495     // with the iconRect(). This is useful to have a larger selection/hover-area
 496     // when having a quite large icon size but only one line of text. Still the
 497     // focus rectangle should be shown as narrow as possible around the text.
 498
 499     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 500
 501     switch (m_layout) {
 502     case CompactLayout: {
 503         QRectF rect = m_textRect;
 504         const TextInfo *topText = m_textInfo.value(m_sortedVisibleRoles.first());
 505         const TextInfo *bottomText = m_textInfo.value(m_sortedVisibleRoles.last());
 506         rect.setTop(topText->pos.y());
 507         rect.setBottom(bottomText->pos.y() + bottomText->staticText.size().height());
 508         return rect;
 509     }
 510
 511     case DetailsLayout: {
 512         QRectF rect = m_textRect;
 513         const TextInfo *textInfo = m_textInfo.value(m_sortedVisibleRoles.first());
 514         rect.setTop(textInfo->pos.y());
 515         rect.setBottom(textInfo->pos.y() + textInfo->staticText.size().height());
 516
 517         const KItemListStyleOption &option = styleOption();
 518         if (option.extendedSelectionRegion) {
 519             const QString text = textInfo->staticText.text();
 520             rect.setWidth(m_customizedFontMetrics.horizontalAdvance(text) + 2 * option.padding);
 521         }
 522
 523         return rect;
 524     }
 525
 526     default:
 527         break;
 528     }
 529
 530     return m_textRect;
 531 }
 532
 533 QRectF KStandardItemListWidget::selectionRectFull() const
 534 {
 535     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 536     const int padding = styleOption().padding;
 537     if (m_layout == DetailsLayout) {
 538         auto rect = m_iconRect | m_textRect;
 539         if (m_highlightEntireRow) {
 540             if (layoutDirection() == Qt::LeftToRight) {
 541                 rect.setRight(leftPadding() + m_columnWidthSum);
 542             } else {
 543                 rect.setLeft(size().width() - m_columnWidthSum - rightPadding());
 544             }
 545         }
 546         return rect.adjusted(-padding, 0, padding, 0);
 547     } else {
 548         if (m_layout == CompactLayout) {
 549             return rect().adjusted(-padding, 0, padding, 0);
 550         }
 551         return rect();
 552     }
 553 }
 554
 555 QRectF KStandardItemListWidget::selectionRectCore() const
 556 {
 557     // Allow dragging from selection area in details view.
 558     if (m_layout == DetailsLayout && highlightEntireRow() && !isSelected()) {
 559         QRectF result = m_iconRect | m_textRect;
 560         return result;
 561     }
 562     return selectionRectFull();
 563 }
 564
 565 QRectF KStandardItemListWidget::expansionToggleRect() const
 566 {
 567     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 568     return m_isExpandable ? m_expansionArea : QRectF();
 569 }
 570
 571 QRectF KStandardItemListWidget::selectionToggleRect() const
 572 {
 573     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 574
 575     const int widgetIconSize = iconSize();
 576     int toggleSize = KIconLoader::SizeSmall;
 577     if (widgetIconSize >= KIconLoader::SizeEnormous) {
 578         toggleSize = KIconLoader::SizeMedium;
 579     } else if (widgetIconSize >= KIconLoader::SizeLarge) {
 580         toggleSize = KIconLoader::SizeSmallMedium;
 581     }
 582
 583     const int padding = styleOption().padding;
 584     const QRectF selectionRectMinusPadding = selectionRectFull().adjusted(padding, padding, -padding, -padding);
 585     QPointF pos = selectionRectMinusPadding.topLeft();
 586     if (QApplication::isRightToLeft()) {
 587         pos.setX(selectionRectMinusPadding.right() - (pos.x() + toggleSize - selectionRectMinusPadding.left()));
 588     }
 589
 590     return QRectF(pos, QSizeF(toggleSize, toggleSize));
 591 }
 592
 593 QPixmap KStandardItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem *option, QWidget *widget)
 594 {
 595     QPixmap pixmap = KItemListWidget::createDragPixmap(option, widget);
 596     if (m_layout != DetailsLayout) {
 597         return pixmap;
 598     }
 599
 600     // Only return the content of the text-column as pixmap
 601     const int leftClip = m_pixmapPos.x();
 602
 603     const TextInfo *textInfo = m_textInfo.value("text");
 604     const int rightClip = textInfo->pos.x() + textInfo->staticText.size().width() + 2 * styleOption().padding;
 605
 606     QPixmap clippedPixmap(rightClip - leftClip + 1, pixmap.height());
 607     clippedPixmap.fill(Qt::transparent);
 608
 609     QPainter painter(&clippedPixmap);
 610     painter.drawPixmap(-leftClip, 0, pixmap);
 611
 612     return clippedPixmap;
 613 }
 614
 615 void KStandardItemListWidget::startActivateSoonAnimation(int timeUntilActivation)
 616 {
 617     if (m_activateSoonAnimation) {
 618         m_activateSoonAnimation->stop(); // automatically DeleteWhenStopped
 619     }
 620
 621     m_activateSoonAnimation = new QVariantAnimation{this};
 622     m_activateSoonAnimation->setStartValue(0.0);
 623     m_activateSoonAnimation->setEndValue(1.0);
 624     m_activateSoonAnimation->setDuration(timeUntilActivation);
 625
 626     const QVariant originalIconName{value("iconName")};
 627     connect(m_activateSoonAnimation, &QVariantAnimation::valueChanged, this, [originalIconName, this](const QVariant &value) {
 628         auto progress = value.toFloat();
 629
 630         QVariant wantedIconName;
 631         if (progress < 0.333) {
 632             wantedIconName = "folder-open";
 633         } else if (progress < 0.666) {
 634             wantedIconName = originalIconName;
 635         } else {
 636             wantedIconName = "folder-open";
 637         }
 638
 639         QHash<QByteArray, QVariant> itemData{data()};
 640         if (itemData["iconName"] != wantedIconName) {
 641             itemData.insert("iconName", wantedIconName);
 642             setData(itemData);
 643             invalidateIconCache();
 644         }
 645     });
 646
 647     connect(m_activateSoonAnimation, &QObject::destroyed, this, [originalIconName, this]() {
 648         QHash<QByteArray, QVariant> itemData{data()};
 649         if (itemData["iconName"] == "folder-open") {
 650             itemData.insert("iconName", originalIconName);
 651             setData(itemData);
 652             invalidateIconCache();
 653         }
 654     });
 655
 656     m_activateSoonAnimation->start(QAbstractAnimation::DeleteWhenStopped);
 657 }
 658
 659 bool KStandardItemListWidget::isIconControlledByActivateSoonAnimation() const
 660 {
 661     return m_activateSoonAnimation && value("iconName") == "folder-open";
 662 }
 663
 664 KItemListWidgetInformant *KStandardItemListWidget::createInformant()
 665 {
 666     return new KStandardItemListWidgetInformant();
 667 }
 668
 669 void KStandardItemListWidget::invalidateCache()
 670 {
 671     m_dirtyLayout = true;
 672     m_dirtyContent = true;
 673 }
 674
 675 void KStandardItemListWidget::invalidateIconCache()
 676 {
 677     m_dirtyContent = true;
 678     m_dirtyContentRoles.insert("iconPixmap");
 679 }
 680
 681 void KStandardItemListWidget::refreshCache()
 682 {
 683 }
 684
 685 bool KStandardItemListWidget::isRoleRightAligned(const QByteArray &role) const
 686 {
 687     Q_UNUSED(role)
 688     return false;
 689 }
 690
 691 bool KStandardItemListWidget::isHidden() const
 692 {
 693     return false;
 694 }
 695
 696 QFont KStandardItemListWidget::customizedFont(const QFont &baseFont) const
 697 {
 698     return baseFont;
 699 }
 700
 701 QPalette::ColorRole KStandardItemListWidget::normalTextColorRole() const
 702 {
 703     if (isPressed()) {
 704         return QPalette::HighlightedText;
 705     } else {
 706         return QPalette::Text;
 707     }
 708 }
 709
 710 void KStandardItemListWidget::setTextColor(const QColor &color)
 711 {
 712     if (color != m_customTextColor) {
 713         m_customTextColor = color;
 714         updateAdditionalInfoTextColor();
 715         update();
 716     }
 717 }
 718
 719 QColor KStandardItemListWidget::textColor(const QWidget &widget) const
 720 {
 721     if (!isSelected()) {
 722         if (m_isHidden) {
 723             return m_additionalInfoTextColor;
 724         } else if (m_customTextColor.isValid()) {
 725             return m_customTextColor;
 726         }
 727     }
 728
 729     const QPalette::ColorGroup group = isActiveWindow() && widget.hasFocus() ? QPalette::Active : QPalette::Inactive;
 730     const QPalette::ColorRole role = normalTextColorRole();
 731     return styleOption().palette.color(group, role);
 732 }
 733
 734 void KStandardItemListWidget::setOverlays(QHash<Qt::Corner, QString> &overlays)
 735 {
 736     if (overlays == m_overlays) {
 737         return;
 738     }
 739
 740     m_overlays = overlays;
 741     m_dirtyContent = true;
 742     m_dirtyContentRoles.insert("iconOverlays");
 743     update();
 744 }
 745
 746 QHash<Qt::Corner, QString> KStandardItemListWidget::overlays() const
 747 {
 748     return m_overlays;
 749 }
 750
 751 QString KStandardItemListWidget::roleText(const QByteArray &role, const QHash<QByteArray, QVariant> &values) const
 752 {
 753     return static_cast<const KStandardItemListWidgetInformant *>(informant())->roleText(role, values);
 754 }
 755
 756 void KStandardItemListWidget::dataChanged(const QHash<QByteArray, QVariant> &current, const QSet<QByteArray> &roles)
 757 {
 758     Q_UNUSED(current)
 759
 760     m_dirtyContent = true;
 761
 762     QSet<QByteArray> dirtyRoles;
 763     if (roles.isEmpty()) {
 764         const auto visibleRoles = this->visibleRoles();
 765         dirtyRoles = QSet<QByteArray>(visibleRoles.constBegin(), visibleRoles.constEnd());
 766     } else {
 767         dirtyRoles = roles;
 768     }
 769
 770     // The URL might have changed (i.e., if the sort order of the items has
 771     // been changed). Therefore, the "is cut" state must be updated.
 772     KFileItemClipboard *clipboard = KFileItemClipboard::instance();
 773     const QUrl itemUrl = data().value("url").toUrl();
 774     m_isCut = clipboard->isCut(itemUrl);
 775
 776     // The icon-state might depend from other roles and hence is
 777     // marked as dirty whenever a role has been changed
 778     dirtyRoles.insert("iconPixmap");
 779     dirtyRoles.insert("iconName");
 780
 781     QSetIterator<QByteArray> it(dirtyRoles);
 782     while (it.hasNext()) {
 783         const QByteArray &role = it.next();
 784         m_dirtyContentRoles.insert(role);
 785     }
 786 }
 787
 788 void KStandardItemListWidget::visibleRolesChanged(const QList<QByteArray> &current, const QList<QByteArray> &previous)
 789 {
 790     Q_UNUSED(previous)
 791     m_sortedVisibleRoles = current;
 792     m_dirtyLayout = true;
 793 }
 794
 795 void KStandardItemListWidget::columnWidthChanged(const QByteArray &role, qreal current, qreal previous)
 796 {
 797     Q_UNUSED(role)
 798     Q_UNUSED(current)
 799     Q_UNUSED(previous)
 800     m_dirtyLayout = true;
 801 }
 802
 803 void KStandardItemListWidget::sidePaddingChanged(qreal leftPaddingWidth, qreal rightPaddingWidth)
 804 {
 805     Q_UNUSED(leftPaddingWidth)
 806     Q_UNUSED(rightPaddingWidth)
 807     m_dirtyLayout = true;
 808 }
 809
 810 void KStandardItemListWidget::styleOptionChanged(const KItemListStyleOption &current, const KItemListStyleOption &previous)
 811 {
 812     KItemListWidget::styleOptionChanged(current, previous);
 813
 814     updateAdditionalInfoTextColor();
 815     m_dirtyLayout = true;
 816 }
 817
 818 void KStandardItemListWidget::hoveredChanged(bool hovered)
 819 {
 820     if (!hovered && m_activateSoonAnimation) {
 821         m_activateSoonAnimation->stop(); // automatically DeleteWhenStopped
 822     }
 823     m_dirtyLayout = true;
 824 }
 825
 826 void KStandardItemListWidget::selectedChanged(bool selected)
 827 {
 828     Q_UNUSED(selected)
 829     updateAdditionalInfoTextColor();
 830     m_dirtyContent = true;
 831 }
 832
 833 void KStandardItemListWidget::siblingsInformationChanged(const QBitArray &current, const QBitArray &previous)
 834 {
 835     Q_UNUSED(current)
 836     Q_UNUSED(previous)
 837     m_dirtyLayout = true;
 838 }
 839
 840 int KStandardItemListWidget::numberOfUnicodeCharactersIn(const QString &text)
 841 {
 842     int count = 0;
 843     QTextBoundaryFinder boundaryFinder(QTextBoundaryFinder::Grapheme, text);
 844     while (boundaryFinder.toNextBoundary() != -1) {
 845         ++count;
 846     }
 847     return count;
 848 }
 849
 850 int KStandardItemListWidget::selectionLength(const QString &text) const
 851 {
 852     return numberOfUnicodeCharactersIn(text);
 853 }
 854
 855 void KStandardItemListWidget::editedRoleChanged(const QByteArray &current, const QByteArray &previous)
 856 {
 857     Q_UNUSED(previous)
 858
 859     QGraphicsView *parent = scene()->views()[0];
 860     if (current.isEmpty() || !parent || current != "text") {
 861         if (m_roleEditor) {
 862             Q_EMIT roleEditingCanceled(index(), current, data().value(current));
 863             closeRoleEditor();
 864         }
 865         return;
 866     }
 867
 868     Q_ASSERT(!m_roleEditor);
 869
 870     const TextInfo *textInfo = m_textInfo.value("text");
 871
 872     m_roleEditor = new KItemListRoleEditor(parent);
 873     m_roleEditor->setRole(current);
 874     m_roleEditor->setAllowUpDownKeyChainEdit(m_layout != IconsLayout);
 875     m_roleEditor->setFont(styleOption().font);
 876
 877     const QString text = data().value(current).toString();
 878     m_roleEditor->setPlainText(text);
 879
 880     QTextOption textOption = textInfo->staticText.textOption();
 881     m_roleEditor->document()->setDefaultTextOption(textOption);
 882
 883     const int textSelectionLength = selectionLength(text);
 884
 885     if (textSelectionLength > 0) {
 886         QTextCursor cursor = m_roleEditor->textCursor();
 887         cursor.movePosition(QTextCursor::StartOfBlock);
 888         cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, textSelectionLength);
 889         m_roleEditor->setTextCursor(cursor);
 890     }
 891
 892     connect(m_roleEditor, &KItemListRoleEditor::roleEditingCanceled, this, &KStandardItemListWidget::slotRoleEditingCanceled);
 893     connect(m_roleEditor, &KItemListRoleEditor::roleEditingFinished, this, &KStandardItemListWidget::slotRoleEditingFinished);
 894
 895     // Adjust the geometry of the editor
 896     QRectF rect = roleEditingRect(current);
 897     const int frameWidth = m_roleEditor->frameWidth();
 898     rect.adjust(-frameWidth, -frameWidth, frameWidth, frameWidth);
 899     rect.translate(pos());
 900     if (rect.right() > parent->width()) {
 901         rect.setWidth(parent->width() - rect.left());
 902     }
 903     m_roleEditor->setGeometry(rect.toRect());
 904     m_roleEditor->autoAdjustSize();
 905     m_roleEditor->show();
 906     m_roleEditor->setFocus();
 907 }
 908
 909 void KStandardItemListWidget::iconSizeChanged(int current, int previous)
 910 {
 911     KItemListWidget::iconSizeChanged(current, previous);
 912
 913     invalidateIconCache();
 914     triggerCacheRefreshing();
 915     update();
 916 }
 917
 918 void KStandardItemListWidget::resizeEvent(QGraphicsSceneResizeEvent *event)
 919 {
 920     if (m_roleEditor) {
 921         setEditedRole(QByteArray());
 922         Q_ASSERT(!m_roleEditor);
 923     }
 924
 925     KItemListWidget::resizeEvent(event);
 926
 927     m_dirtyLayout = true;
 928 }
 929
 930 void KStandardItemListWidget::showEvent(QShowEvent *event)
 931 {
 932     KItemListWidget::showEvent(event);
 933
 934     // Listen to changes of the clipboard to mark the item as cut/uncut
 935     KFileItemClipboard *clipboard = KFileItemClipboard::instance();
 936
 937     const QUrl itemUrl = data().value("url").toUrl();
 938     m_isCut = clipboard->isCut(itemUrl);
 939
 940     connect(clipboard, &KFileItemClipboard::cutItemsChanged, this, &KStandardItemListWidget::slotCutItemsChanged);
 941 }
 942
 943 void KStandardItemListWidget::hideEvent(QHideEvent *event)
 944 {
 945     disconnect(KFileItemClipboard::instance(), &KFileItemClipboard::cutItemsChanged, this, &KStandardItemListWidget::slotCutItemsChanged);
 946
 947     KItemListWidget::hideEvent(event);
 948 }
 949
 950 bool KStandardItemListWidget::event(QEvent *event)
 951 {
 952     if (event->type() == QEvent::WindowDeactivate || event->type() == QEvent::WindowActivate || event->type() == QEvent::PaletteChange) {
 953         m_dirtyContent = true;
 954     }
 955
 956     return KItemListWidget::event(event);
 957 }
 958
 959 void KStandardItemListWidget::finishRoleEditing()
 960 {
 961     if (!editedRole().isEmpty() && m_roleEditor) {
 962         slotRoleEditingFinished(editedRole(), KIO::encodeFileName(m_roleEditor->toPlainText()));
 963     }
 964 }
 965
 966 void KStandardItemListWidget::slotCutItemsChanged()
 967 {
 968     const QUrl itemUrl = data().value("url").toUrl();
 969     const bool isCut = KFileItemClipboard::instance()->isCut(itemUrl);
 970     if (m_isCut != isCut) {
 971         m_isCut = isCut;
 972         m_pixmap = QPixmap();
 973         m_dirtyContent = true;
 974         update();
 975     }
 976 }
 977
 978 void KStandardItemListWidget::slotRoleEditingCanceled(const QByteArray &role, const QVariant &value)
 979 {
 980     closeRoleEditor();
 981     Q_EMIT roleEditingCanceled(index(), role, value);
 982     setEditedRole(QByteArray());
 983 }
 984
 985 void KStandardItemListWidget::slotRoleEditingFinished(const QByteArray &role, const QVariant &value)
 986 {
 987     closeRoleEditor();
 988     Q_EMIT roleEditingFinished(index(), role, value);
 989     setEditedRole(QByteArray());
 990 }
 991
 992 void KStandardItemListWidget::triggerCacheRefreshing()
 993 {
 994     if ((!m_dirtyContent && !m_dirtyLayout) || index() < 0) {
 995         return;
 996     }
 997
 998     refreshCache();
 999
1000     const QHash<QByteArray, QVariant> values = data();
1001     m_isExpandable = m_supportsItemExpanding && values["isExpandable"].toBool();
1002     m_isHidden = isHidden();
1003     m_customizedFont = customizedFont(styleOption().font);
1004     m_customizedFontMetrics = QFontMetrics(m_customizedFont);
1005     m_columnWidthSum = std::accumulate(m_sortedVisibleRoles.begin(), m_sortedVisibleRoles.end(), qreal(), [this](qreal sum, const auto &role) {
1006         return sum + columnWidth(role);
1007     });
1008
1009     updateExpansionArea();
1010     updateTextsCache();
1011     updatePixmapCache();
1012     clearHoverCache();
1013
1014     m_dirtyLayout = false;
1015     m_dirtyContent = false;
1016     m_dirtyContentRoles.clear();
1017 }
1018
1019 void KStandardItemListWidget::updateExpansionArea()
1020 {
1021     if (m_supportsItemExpanding) {
1022         const QHash<QByteArray, QVariant> values = data();
1023         const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
1024         if (expandedParentsCount >= 0) {
1025             const int widgetIconSize = iconSize();
1026             const qreal widgetHeight = size().height();
1027             const qreal inc = (widgetHeight - widgetIconSize) / 2;
1028             const qreal x = expandedParentsCount * widgetHeight + inc;
1029             const qreal y = inc;
1030             if (layoutDirection() == Qt::LeftToRight) {
1031                 const qreal leftPaddingWidth = m_highlightEntireRow ? leftPadding() : 0;
1032                 m_expansionArea = QRectF(leftPaddingWidth + x, y, widgetIconSize, widgetIconSize);
1033                 return;
1034             }
1035             const qreal rightPaddingWidth = m_highlightEntireRow ? rightPadding() : 0;
1036             m_expansionArea = QRectF(size().width() - rightPaddingWidth - x - widgetIconSize, y, widgetIconSize, widgetIconSize);
1037             return;
1038         }
1039     }
1040
1041     m_expansionArea = QRectF();
1042 }
1043
1044 void KStandardItemListWidget::updatePixmapCache()
1045 {
1046     // Precondition: Requires already updated m_textPos values to calculate
1047     // the remaining height when the alignment is vertical.
1048
1049     const QSizeF widgetSize = size();
1050     const bool iconOnTop = (m_layout == IconsLayout);
1051     const KItemListStyleOption &option = styleOption();
1052     const qreal padding = option.padding;
1053     const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
1054
1055     const int widgetIconSize = iconSize();
1056     const int maxIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : widgetIconSize;
1057     const int maxIconHeight = widgetIconSize;
1058
1059     const QHash<QByteArray, QVariant> values = data();
1060
1061     bool updatePixmap = (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight);
1062     if (!updatePixmap && m_dirtyContent) {
1063         updatePixmap = m_dirtyContentRoles.isEmpty() || m_dirtyContentRoles.contains("iconPixmap") || m_dirtyContentRoles.contains("iconName")
1064             || m_dirtyContentRoles.contains("iconOverlays");
1065     }
1066
1067     if (updatePixmap) {
1068         m_pixmap = QPixmap();
1069
1070         int sequenceIndex = hoverSequenceIndex();
1071
1072         if (values.contains("hoverSequencePixmaps") && !isIconControlledByActivateSoonAnimation()) {
1073             // Use one of the hover sequence pixmaps instead of the default
1074             // icon pixmap.
1075
1076             const QVector<QPixmap> pixmaps = values["hoverSequencePixmaps"].value<QVector<QPixmap>>();
1077
1078             if (values.contains("hoverSequenceWraparoundPoint")) {
1079                 const float wap = values["hoverSequenceWraparoundPoint"].toFloat();
1080                 if (wap >= 1.0f) {
1081                     sequenceIndex %= static_cast<int>(wap);
1082                 }
1083             }
1084
1085             const int loadedIndex = qMax(qMin(sequenceIndex, pixmaps.size() - 1), 0);
1086
1087             if (loadedIndex != 0) {
1088                 m_pixmap = pixmaps[loadedIndex];
1089             }
1090         }
1091
1092         if (m_pixmap.isNull() && !isIconControlledByActivateSoonAnimation()) {
1093             m_pixmap = values["iconPixmap"].value<QPixmap>();
1094         }
1095
1096         if (m_pixmap.isNull()) {
1097             // Use the icon that fits to the MIME-type
1098             QString iconName = values["iconName"].toString();
1099             if (iconName.isEmpty()) {
1100                 // The icon-name has not been not resolved by KFileItemModelRolesUpdater,
1101                 // use a generic icon as fallback
1102                 iconName = QStringLiteral("unknown");
1103             }
1104             const bool hasFocus = scene()->views()[0]->parentWidget()->hasFocus();
1105             m_pixmap = pixmapForIcon(iconName,
1106                                      QSize(maxIconWidth, maxIconHeight),
1107                                      m_layout != IconsLayout && isActiveWindow() && isSelected() && hasFocus ? QIcon::Selected : QIcon::Normal);
1108
1109         } else {
1110             if (m_pixmap.width() / m_pixmap.devicePixelRatio() != maxIconWidth || m_pixmap.height() / m_pixmap.devicePixelRatio() != maxIconHeight) {
1111                 // A custom pixmap has been applied. Assure that the pixmap
1112                 // is scaled to the maximum available size.
1113                 KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight) * dpr);
1114             }
1115         }
1116
1117         if (m_pixmap.isNull()) {
1118             return;
1119         }
1120
1121         if (m_isCut) {
1122             KIconEffect::toDisabled(m_pixmap);
1123         }
1124
1125         if (m_isHidden) {
1126             KIconEffect::semiTransparent(m_pixmap);
1127         }
1128     }
1129
1130     int scaledIconSize = 0;
1131     if (iconOnTop) {
1132         const TextInfo *textInfo = m_textInfo.value("text");
1133         scaledIconSize = static_cast<int>(textInfo->pos.y() - 2 * padding);
1134     } else {
1135         const int textRowsCount = (m_layout == CompactLayout) ? visibleRoles().count() : 1;
1136         const qreal requiredTextHeight = textRowsCount * m_customizedFontMetrics.height();
1137         scaledIconSize = (requiredTextHeight < maxIconHeight) ? widgetSize.height() - 2 * padding : maxIconHeight;
1138     }
1139
1140     const int maxScaledIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : scaledIconSize;
1141     const int maxScaledIconHeight = scaledIconSize;
1142
1143     m_scaledPixmapSize = m_pixmap.size();
1144     m_scaledPixmapSize.scale(maxScaledIconWidth * dpr, maxScaledIconHeight * dpr, Qt::KeepAspectRatio);
1145     m_scaledPixmapSize = m_scaledPixmapSize / dpr;
1146
1147     if (iconOnTop) {
1148         // Center horizontally and align on bottom within the icon-area
1149         m_pixmapPos.setX((widgetSize.width() - m_scaledPixmapSize.width()) / 2.0);
1150         m_pixmapPos.setY(padding + scaledIconSize - m_scaledPixmapSize.height());
1151     } else {
1152         // Center horizontally and vertically within the icon-area
1153         const TextInfo *textInfo = m_textInfo.value("text");
1154         if (QApplication::isRightToLeft()) {
1155             m_pixmapPos.setX(m_textRect.right() + 2.0 * padding);
1156         } else {
1157             m_pixmapPos.setX(textInfo->pos.x() - 2.0 * padding - (scaledIconSize + m_scaledPixmapSize.width()) / 2.0);
1158         }
1159
1160         // Derive icon's vertical center from the center of the text frame, including
1161         // any necessary adjustment if the font's midline is offset from the frame center
1162         const qreal midlineShift = m_customizedFontMetrics.height() / 2.0 - m_customizedFontMetrics.descent() - m_customizedFontMetrics.capHeight() / 2.0;
1163         m_pixmapPos.setY(m_textRect.center().y() + midlineShift - m_scaledPixmapSize.height() / 2.0);
1164     }
1165
1166     if (m_layout == IconsLayout) {
1167         m_iconRect = QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize));
1168     } else {
1169         const qreal widthOffset = widgetIconSize - m_scaledPixmapSize.width();
1170         const qreal heightOffset = widgetIconSize - m_scaledPixmapSize.height();
1171         const QPointF squareIconPos(m_pixmapPos.x() - 0.5 * widthOffset, m_pixmapPos.y() - 0.5 * heightOffset);
1172         const QSizeF squareIconSize(widgetIconSize, widgetIconSize);
1173         m_iconRect = QRectF(squareIconPos, squareIconSize);
1174     }
1175 }
1176
1177 void KStandardItemListWidget::updateTextsCache()
1178 {
1179     QTextOption textOption;
1180     switch (m_layout) {
1181     case IconsLayout:
1182         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
1183         textOption.setAlignment(Qt::AlignHCenter);
1184         break;
1185     case CompactLayout:
1186         textOption.setAlignment(QApplication::isRightToLeft() ? Qt::AlignRight : Qt::AlignLeft);
1187         textOption.setWrapMode(QTextOption::NoWrap);
1188         break;
1189     case DetailsLayout:
1190         textOption.setAlignment(Qt::AlignLeft);
1191         textOption.setWrapMode(QTextOption::NoWrap);
1192         break;
1193     default:
1194         Q_ASSERT(false);
1195         break;
1196     }
1197
1198     qDeleteAll(m_textInfo);
1199     m_textInfo.clear();
1200     for (int i = 0; i < m_sortedVisibleRoles.count(); ++i) {
1201         TextInfo *textInfo = new TextInfo();
1202         textInfo->staticText.setTextFormat(Qt::PlainText);
1203         textInfo->staticText.setPerformanceHint(QStaticText::AggressiveCaching);
1204         textInfo->staticText.setTextOption(textOption);
1205         m_textInfo.insert(m_sortedVisibleRoles[i], textInfo);
1206     }
1207
1208     switch (m_layout) {
1209     case IconsLayout:
1210         updateIconsLayoutTextCache();
1211         break;
1212     case CompactLayout:
1213         updateCompactLayoutTextCache();
1214         break;
1215     case DetailsLayout:
1216         updateDetailsLayoutTextCache();
1217         break;
1218     default:
1219         Q_ASSERT(false);
1220         break;
1221     }
1222
1223     const TextInfo *ratingTextInfo = m_textInfo.value("rating");
1224     if (ratingTextInfo) {
1225         // The text of the rating-role has been set to empty to get
1226         // replaced by a rating-image showing the rating as stars.
1227         const KItemListStyleOption &option = styleOption();
1228         QSizeF ratingSize = preferredRatingSize(option);
1229
1230         const qreal availableWidth = (m_layout == DetailsLayout) ? columnWidth("rating") - columnPadding(option) : size().width();
1231         if (ratingSize.width() > availableWidth) {
1232             ratingSize.rwidth() = availableWidth;
1233         }
1234         const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
1235         m_rating = QPixmap(ratingSize.toSize() * dpr);
1236         m_rating.setDevicePixelRatio(dpr);
1237         m_rating.fill(Qt::transparent);
1238
1239         QPainter painter(&m_rating);
1240         const QRect rect(QPoint(0, 0), ratingSize.toSize());
1241         const int rating = data().value("rating").toInt();
1242         KRatingPainter::paintRating(&painter, rect, Qt::AlignJustify | Qt::AlignVCenter, rating);
1243     } else if (!m_rating.isNull()) {
1244         m_rating = QPixmap();
1245     }
1246 }
1247
1248 QString KStandardItemListWidget::elideText(QString text, qreal maxWidth) const
1249 {
1250     if (ContentDisplaySettings::elidingMode() == ContentDisplaySettings::ElidingMode::Middle) {
1251         return m_customizedFontMetrics.elidedText(text, Qt::ElideMiddle, maxWidth);
1252     }
1253
1254     if (ContentDisplaySettings::elidingMode() == ContentDisplaySettings::ElidingMode::Right) {
1255         qsizetype lastDotPosition = text.lastIndexOf(".");
1256         QString extension = text.mid(lastDotPosition);
1257
1258         if (m_customizedFontMetrics.horizontalAdvance(QStringLiteral("…") + extension) > maxWidth) {
1259             extension = "";
1260             lastDotPosition = text.size();
1261         }
1262
1263         maxWidth -= m_customizedFontMetrics.horizontalAdvance(extension);
1264         QString leftPart = m_customizedFontMetrics.elidedText(text.left(lastDotPosition), Qt::ElideRight, maxWidth);
1265
1266         return leftPart + extension;
1267     }
1268
1269     Q_UNREACHABLE();
1270     return text;
1271 }
1272
1273 QString KStandardItemListWidget::escapeString(const QString &text) const
1274 {
1275     QString escaped(text);
1276
1277     const QChar returnSymbol(0x21b5);
1278     escaped.replace('\n', returnSymbol);
1279
1280     return escaped;
1281 }
1282
1283 void KStandardItemListWidget::updateIconsLayoutTextCache()
1284 {
1285     //      +------+
1286     //      | Icon |
1287     //      +------+
1288     //
1289     //    Name role that
1290     // might get wrapped above
1291     //    several lines.
1292     //  Additional role 1
1293     //  Additional role 2
1294
1295     const QHash<QByteArray, QVariant> values = data();
1296
1297     const KItemListStyleOption &option = styleOption();
1298     const qreal padding = option.padding;
1299     const qreal maxWidth = size().width() - 2 * padding;
1300     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
1301
1302     // Initialize properties for the "text" role. It will be used as anchor
1303     // for initializing the position of the other roles.
1304     TextInfo *nameTextInfo = m_textInfo.value("text");
1305     const QString nameText = KStringHandler::preProcessWrap(escapeString(values["text"].toString()));
1306     nameTextInfo->staticText.setText(nameText);
1307
1308     // Calculate the number of lines required for the name and the required width
1309     qreal nameWidth = 0;
1310     qreal nameHeight = 0;
1311     QTextLine line;
1312
1313     QTextLayout layout(nameTextInfo->staticText.text(), m_customizedFont);
1314     layout.setTextOption(nameTextInfo->staticText.textOption());
1315     layout.beginLayout();
1316     int nameLineIndex = 0;
1317     while ((line = layout.createLine()).isValid()) {
1318         line.setLineWidth(maxWidth);
1319         nameWidth = qMax(nameWidth, line.naturalTextWidth());
1320         nameHeight += line.height();
1321
1322         ++nameLineIndex;
1323         if (nameLineIndex == option.maxTextLines) {
1324             // The maximum number of textlines has been reached. If this is
1325             // the case provide an elided text if necessary.
1326             const int textLength = line.textStart() + line.textLength();
1327             if (textLength < nameText.length()) {
1328                 // Elide the last line of the text
1329                 qreal elidingWidth = maxWidth;
1330                 qreal lastLineWidth;
1331                 do {
1332                     QString lastTextLine = nameText.mid(line.textStart());
1333                     lastTextLine = elideText(lastTextLine, elidingWidth);
1334                     const QString elidedText = nameText.left(line.textStart()) + lastTextLine;
1335                     nameTextInfo->staticText.setText(elidedText);
1336
1337                     lastLineWidth = m_customizedFontMetrics.boundingRect(lastTextLine).width();
1338
1339                     // We do the text eliding in a loop with decreasing width (1 px / iteration)
1340                     // to avoid problems related to different width calculation code paths
1341                     // within Qt. (see bug 337104)
1342                     elidingWidth -= 1.0;
1343                 } while (lastLineWidth > maxWidth);
1344
1345                 nameWidth = qMax(nameWidth, lastLineWidth);
1346             }
1347             break;
1348         }
1349     }
1350     layout.endLayout();
1351
1352     // Use one line for each additional information
1353     nameTextInfo->staticText.setTextWidth(maxWidth);
1354     nameTextInfo->pos = QPointF(padding, iconSize() + 2 * padding);
1355     m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2, nameTextInfo->pos.y(), nameWidth, nameHeight);
1356
1357     // Calculate the position for each additional information
1358     qreal y = nameTextInfo->pos.y() + nameHeight;
1359     for (const QByteArray &role : std::as_const(m_sortedVisibleRoles)) {
1360         if (role == "text") {
1361             continue;
1362         }
1363
1364         const QString text = roleText(role, values);
1365         TextInfo *textInfo = m_textInfo.value(role);
1366         textInfo->staticText.setText(text);
1367
1368         qreal requiredWidth = 0;
1369
1370         QTextLayout layout(text, m_customizedFont);
1371         QTextOption textOption;
1372         textOption.setWrapMode(QTextOption::NoWrap);
1373         layout.setTextOption(textOption);
1374
1375         layout.beginLayout();
1376         QTextLine textLine = layout.createLine();
1377         if (textLine.isValid()) {
1378             textLine.setLineWidth(maxWidth);
1379             requiredWidth = textLine.naturalTextWidth();
1380             if (requiredWidth > maxWidth) {
1381                 const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1382                 textInfo->staticText.setText(elidedText);
1383                 requiredWidth = m_customizedFontMetrics.horizontalAdvance(elidedText);
1384             } else if (role == "rating") {
1385                 // Use the width of the rating pixmap, because the rating text is empty.
1386                 requiredWidth = m_rating.width() / m_rating.devicePixelRatioF();
1387             }
1388         }
1389         layout.endLayout();
1390
1391         textInfo->pos = QPointF(padding, y);
1392         textInfo->staticText.setTextWidth(maxWidth);
1393
1394         const QRectF textRect(padding + (maxWidth - requiredWidth) / 2, y, requiredWidth, lineSpacing);
1395
1396         // Ignore empty roles. Avoids a text rect taller than the area that actually contains text.
1397         if (!textRect.isEmpty()) {
1398             m_textRect |= textRect;
1399         }
1400
1401         y += lineSpacing;
1402     }
1403
1404     // Add a padding to the text rectangle
1405     m_textRect.adjust(-padding, -padding, padding, padding);
1406 }
1407
1408 void KStandardItemListWidget::updateCompactLayoutTextCache()
1409 {
1410     // +------+  Name role
1411     // | Icon |  Additional role 1
1412     // +------+  Additional role 2
1413
1414     const QHash<QByteArray, QVariant> values = data();
1415
1416     const KItemListStyleOption &option = styleOption();
1417     const qreal widgetHeight = size().height();
1418     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
1419     const qreal textLinesHeight = qMax(visibleRoles().count(), 1) * lineSpacing;
1420
1421     qreal maximumRequiredTextWidth = 0;
1422     const qreal x = QApplication::isRightToLeft() ? option.padding : option.padding * 3 + iconSize();
1423     qreal y = qRound((widgetHeight - textLinesHeight) / 2);
1424     const qreal maxWidth = size().width() - iconSize() - 4 * option.padding;
1425     for (const QByteArray &role : std::as_const(m_sortedVisibleRoles)) {
1426         const QString text = escapeString(roleText(role, values));
1427         TextInfo *textInfo = m_textInfo.value(role);
1428         textInfo->staticText.setText(text);
1429
1430         qreal requiredWidth = m_customizedFontMetrics.horizontalAdvance(text);
1431         if (requiredWidth > maxWidth) {
1432             requiredWidth = maxWidth;
1433             if (role == "text") {
1434                 const QString elidedText = elideText(text, maxWidth);
1435                 textInfo->staticText.setText(elidedText);
1436             } else {
1437                 const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1438                 textInfo->staticText.setText(elidedText);
1439             }
1440         }
1441
1442         textInfo->pos = QPointF(x, y);
1443         textInfo->staticText.setTextWidth(maxWidth);
1444
1445         maximumRequiredTextWidth = qMax(maximumRequiredTextWidth, requiredWidth);
1446
1447         y += lineSpacing;
1448     }
1449
1450     m_textRect = QRectF(x - option.padding, 0, maximumRequiredTextWidth + 2 * option.padding, widgetHeight);
1451 }
1452
1453 void KStandardItemListWidget::updateDetailsLayoutTextCache()
1454 {
1455     // Precondition: Requires already updated m_expansionArea
1456     // to determine the left position.
1457
1458     // +------+
1459     // | Icon |  Name role   Additional role 1   Additional role 2
1460     // +------+
1461     // Mirror the above for right-to-left languages.
1462     const bool isLeftToRight = QApplication::layoutDirection() == Qt::LeftToRight;
1463     m_textRect = QRectF();
1464
1465     const KItemListStyleOption &option = styleOption();
1466     const QHash<QByteArray, QVariant> values = data();
1467
1468     const qreal widgetHeight = size().height();
1469     const int fontHeight = m_customizedFontMetrics.height();
1470
1471     const qreal columnWidthInc = columnPadding(option);
1472     qreal firstColumnInc = iconSize();
1473     if (m_supportsItemExpanding) {
1474         firstColumnInc += isLeftToRight ? (m_expansionArea.left() + m_expansionArea.right() + widgetHeight) / 2
1475                                         : ((size().width() - m_expansionArea.left()) + (size().width() - m_expansionArea.right()) + widgetHeight) / 2;
1476     } else {
1477         firstColumnInc += option.padding + (isLeftToRight ? leftPadding() : rightPadding());
1478     }
1479
1480     qreal x = firstColumnInc;
1481     const qreal y = qMax(qreal(option.padding), (widgetHeight - fontHeight) / 2);
1482
1483     for (const QByteArray &role : std::as_const(m_sortedVisibleRoles)) {
1484         QString text = roleText(role, values);
1485
1486         // Elide the text in case it does not fit into the available column-width
1487         qreal requiredWidth = m_customizedFontMetrics.horizontalAdvance(text);
1488         const qreal roleWidth = columnWidth(role);
1489         qreal availableTextWidth = roleWidth - columnWidthInc;
1490
1491         const bool isTextRole = (role == "text");
1492         if (isTextRole) {
1493             text = escapeString(text);
1494             availableTextWidth -= firstColumnInc - (isLeftToRight ? leftPadding() : rightPadding());
1495         }
1496
1497         if (requiredWidth > availableTextWidth) {
1498             if (isTextRole) {
1499                 text = elideText(text, availableTextWidth);
1500             } else {
1501                 text = m_customizedFontMetrics.elidedText(text, Qt::ElideRight, availableTextWidth);
1502             }
1503             requiredWidth = m_customizedFontMetrics.horizontalAdvance(text);
1504         }
1505
1506         TextInfo *textInfo = m_textInfo.value(role);
1507         textInfo->staticText.setText(text);
1508         textInfo->pos = QPointF(isLeftToRight ? (x + columnWidthInc / 2) : (size().width() - (x + columnWidthInc / 2) - requiredWidth), y);
1509         x += roleWidth;
1510
1511         if (isTextRole) {
1512             m_textRect = QRectF(textInfo->pos.x() - option.padding, 0, requiredWidth + 2 * option.padding, size().height());
1513
1514             // The column after the name should always be aligned on the same x-position independent
1515             // from the expansion-level shown in the name column
1516             x -= firstColumnInc - (isLeftToRight ? leftPadding() : rightPadding());
1517         } else if (isRoleRightAligned(role) && isLeftToRight) {
1518             textInfo->pos.rx() += roleWidth - requiredWidth - columnWidthInc;
1519         }
1520     }
1521 }
1522
1523 void KStandardItemListWidget::updateAdditionalInfoTextColor()
1524 {
1525     QColor c1;
1526     const bool hasFocus = scene()->views()[0]->parentWidget()->hasFocus();
1527     if (m_customTextColor.isValid()) {
1528         c1 = m_customTextColor;
1529     } else if (isSelected() && hasFocus && (m_layout != DetailsLayout || m_highlightEntireRow)) {
1530         // The detail text color needs to match the main text (HighlightedText) for the same level
1531         // of readability. We short circuit early here to avoid interpolating with another color.
1532         m_additionalInfoTextColor = styleOption().palette.color(normalTextColorRole());
1533         return;
1534     } else {
1535         c1 = styleOption().palette.text().color();
1536     }
1537
1538     // For the color of the additional info the inactive text color
1539     // is not used as this might lead to unreadable text for some color schemes. Instead
1540     // the text color c1 is slightly mixed with the background color.
1541     const QColor c2 = styleOption().palette.base().color();
1542     const int p1 = 70;
1543     const int p2 = 100 - p1;
1544     m_additionalInfoTextColor =
1545         QColor((c1.red() * p1 + c2.red() * p2) / 100, (c1.green() * p1 + c2.green() * p2) / 100, (c1.blue() * p1 + c2.blue() * p2) / 100);
1546 }
1547
1548 QPixmap
1549 KStandardItemListWidget::addOverlays(const QPixmap &pixmap, const QHash<Qt::Corner, QString> &overlays, const QSize &size, qreal dpr, QIcon::Mode mode) const
1550 {
1551     // similar to KIconUtils::addOverlays, keep in sync preferrably
1552     if (overlays.isEmpty()) {
1553         return pixmap;
1554     }
1555
1556     int width = size.width();
1557     int height = size.height();
1558     const int iconSize = qMin(width, height);
1559
1560     // Determine the overlay icon
1561     int overlaySize;
1562     if (iconSize < 32) {
1563         overlaySize = 8;
1564     } else if (iconSize <= 48) {
1565         overlaySize = 16;
1566     } else if (iconSize <= 96) {
1567         overlaySize = 22;
1568     } else if (iconSize < 256) {
1569         overlaySize = 32;
1570     } else {
1571         overlaySize = 64;
1572     }
1573
1574     auto phyiscalSize = QSize(std::clamp(pixmap.width(), qFloor(2 * overlaySize * dpr), qFloor(size.width() * dpr)),
1575                               std::clamp(pixmap.height(), qFloor(2 * overlaySize * dpr), qFloor(size.height() * dpr)));
1576
1577     QPixmap output(phyiscalSize);
1578     output.setDevicePixelRatio(dpr);
1579     output.fill(Qt::transparent);
1580
1581     QPainter painter(&output);
1582     painter.drawPixmap(qFloor(phyiscalSize.width() / dpr / 2) - qFloor(pixmap.width() / pixmap.devicePixelRatio() / 2),
1583                        // align the icon to the bottom to match the behavior elsewhere
1584                        qFloor(phyiscalSize.height() / dpr) - qFloor(pixmap.height() / pixmap.devicePixelRatio()),
1585                        pixmap);
1586
1587     width = qCeil(phyiscalSize.width() / dpr);
1588     height = qCeil(phyiscalSize.height() / dpr);
1589
1590     // Iterate over stored overlays
1591     for (const auto &[corner, overlay] : overlays.asKeyValueRange()) {
1592         const QPixmap overlayPixmap = QIcon::fromTheme(overlay).pixmap(QSize{overlaySize, overlaySize}, dpr, mode);
1593         if (overlayPixmap.isNull()) {
1594             continue;
1595         }
1596
1597         QPoint startPoint;
1598         switch (corner) {
1599         case Qt::BottomLeftCorner:
1600             startPoint = QPoint{0, height - overlaySize};
1601             break;
1602         case Qt::BottomRightCorner:
1603             startPoint = QPoint{width - overlaySize, height - overlaySize};
1604             break;
1605         case Qt::TopRightCorner:
1606             startPoint = QPoint{width - overlaySize, 0};
1607             break;
1608         case Qt::TopLeftCorner:
1609             startPoint = QPoint{};
1610             break;
1611         }
1612         painter.drawPixmap(startPoint, overlayPixmap);
1613     }
1614
1615     return output;
1616 }
1617
1618 void KStandardItemListWidget::drawPixmap(QPainter *painter, const QPixmap &pixmap)
1619 {
1620     if (m_scaledPixmapSize != pixmap.size() / pixmap.devicePixelRatio()) {
1621         const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
1622         QPixmap scaledPixmap = pixmap;
1623         KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize * dpr);
1624         scaledPixmap.setDevicePixelRatio(dpr);
1625         painter->drawPixmap(m_pixmapPos, scaledPixmap);
1626
1627 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
1628         painter->setPen(Qt::blue);
1629         painter->drawRect(QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize)));
1630 #endif
1631     } else {
1632         painter->drawPixmap(m_pixmapPos, pixmap);
1633     }
1634 }
1635
1636 void KStandardItemListWidget::drawSiblingsInformation(QPainter *painter)
1637 {
1638     const int siblingSize = size().height();
1639     const int x = (m_expansionArea.left() + m_expansionArea.right() - siblingSize) / 2;
1640     QRect siblingRect(x, 0, siblingSize, siblingSize);
1641
1642     bool isItemSibling = true;
1643
1644     const QBitArray siblings = siblingsInformation();
1645     QStyleOption option;
1646     const auto normalColor = option.palette.color(normalTextColorRole());
1647     const auto highlightColor = option.palette.color(expansionAreaHovered() ? QPalette::Highlight : normalTextColorRole());
1648     for (int i = siblings.count() - 1; i >= 0; --i) {
1649         option.rect = siblingRect;
1650         option.state = siblings.at(i) ? QStyle::State_Sibling : QStyle::State_None;
1651         if (isItemSibling) {
1652             option.state |= QStyle::State_Item;
1653             if (m_isExpandable) {
1654                 option.state |= QStyle::State_Children;
1655             }
1656             if (data().value("isExpanded").toBool()) {
1657                 option.state |= QStyle::State_Open;
1658             }
1659             option.palette.setColor(QPalette::Text, highlightColor);
1660             isItemSibling = false;
1661         } else {
1662             option.palette.setColor(QPalette::Text, normalColor);
1663         }
1664
1665         style()->drawPrimitive(QStyle::PE_IndicatorBranch, &option, painter);
1666
1667         siblingRect.translate(layoutDirection() == Qt::LeftToRight ? -siblingRect.width() : siblingRect.width(), 0);
1668     }
1669 }
1670
1671 QRectF KStandardItemListWidget::roleEditingRect(const QByteArray &role) const
1672 {
1673     const TextInfo *textInfo = m_textInfo.value(role);
1674     if (!textInfo) {
1675         return QRectF();
1676     }
1677
1678     QRectF rect(textInfo->pos, textInfo->staticText.size());
1679     if (m_layout == DetailsLayout) {
1680         rect.setWidth(columnWidth(role) - rect.x());
1681     }
1682
1683     return rect;
1684 }
1685
1686 void KStandardItemListWidget::closeRoleEditor()
1687 {
1688     disconnect(m_roleEditor, &KItemListRoleEditor::roleEditingCanceled, this, &KStandardItemListWidget::slotRoleEditingCanceled);
1689     disconnect(m_roleEditor, &KItemListRoleEditor::roleEditingFinished, this, &KStandardItemListWidget::slotRoleEditingFinished);
1690
1691     if (m_roleEditor->hasFocus()) {
1692         // If the editing was not ended by a FocusOut event, we have
1693         // to transfer the keyboard focus back to the KItemListContainer.
1694         scene()->views()[0]->parentWidget()->setFocus();
1695     }
1696
1697     if (m_oldRoleEditor) {
1698         m_oldRoleEditor->deleteLater();
1699     }
1700     m_oldRoleEditor = m_roleEditor;
1701     m_roleEditor->hide();
1702     m_roleEditor = nullptr;
1703 }
1704
1705 QPixmap KStandardItemListWidget::pixmapForIcon(const QString &name, const QSize &size, QIcon::Mode mode) const
1706 {
1707     static const QIcon fallbackIcon = QIcon::fromTheme(QStringLiteral("unknown"));
1708     const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
1709
1710     int iconHeight = size.height();
1711     QSize iconSize = QSize(iconHeight, iconHeight);
1712
1713     const QString key = "KStandardItemListWidget:" % name % ":" % QString::number(iconHeight) % "@" % QString::number(dpr) % ":" % QString::number(mode);
1714     QPixmap pixmap;
1715
1716     if (!QPixmapCache::find(key, &pixmap)) {
1717         QIcon icon = QIcon::fromTheme(name);
1718         if (icon.isNull()) {
1719             icon = QIcon(name);
1720         }
1721         if (!icon.isNull()) {
1722             pixmap = icon.pixmap(iconSize, dpr, mode);
1723         }
1724         if (pixmap.isNull()) {
1725             icon = fallbackIcon;
1726             pixmap = icon.pixmap(iconSize, dpr, mode);
1727         }
1728         if (pixmap.width() != iconHeight * dpr || pixmap.height() != iconHeight * dpr) {
1729             KPixmapModifier::scale(pixmap, iconSize * dpr);
1730         }
1731
1732         QPixmapCache::insert(key, pixmap);
1733     }
1734     pixmap.setDevicePixelRatio(dpr);
1735
1736     return pixmap;
1737 }
1738
1739 QSizeF KStandardItemListWidget::preferredRatingSize(const KItemListStyleOption &option)
1740 {
1741     const qreal height = option.fontMetrics.ascent();
1742     return QSizeF(height * 5, height);
1743 }
1744
1745 qreal KStandardItemListWidget::columnPadding(const KItemListStyleOption &option)
1746 {
1747     return option.padding * 6;
1748 }
1749
1750 #include "moc_kstandarditemlistwidget.cpp"