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 "kfileitemlistview.h"
  10 #include "private/kfileitemclipboard.h"
  11 #include "private/kitemlistroleeditor.h"
  12 #include "private/kitemviewsutils.h"
  13 #include "private/kpixmapmodifier.h"
  14
  15 #include <KIconEffect>
  16 #include <KIconLoader>
  17 #include <KIconUtils>
  18 #include <KRatingPainter>
  19 #include <KStringHandler>
  20 #include <klocalizedstring.h>
  21
  22 #include <QApplication>
  23 #include <QGraphicsScene>
  24 #include <QGraphicsSceneResizeEvent>
  25 #include <QGraphicsView>
  26 #include <QPixmapCache>
  27 #include <QStyleOption>
  28 #include <QTextBoundaryFinder>
  29 #include <QVariantAnimation>
  30
  31 // #define KSTANDARDITEMLISTWIDGET_DEBUG
  32
  33 KStandardItemListWidgetInformant::KStandardItemListWidgetInformant()
  34     : KItemListWidgetInformant()
  35 {
  36 }
  37
  38 KStandardItemListWidgetInformant::~KStandardItemListWidgetInformant()
  39 {
  40 }
  41
  42 void KStandardItemListWidgetInformant::calculateItemSizeHints(QVector<std::pair<qreal, bool>> &logicalHeightHints,
  43                                                               qreal &logicalWidthHint,
  44                                                               const KItemListView *view) const
  45 {
  46     switch (static_cast<const KStandardItemListView *>(view)->itemLayout()) {
  47     case KStandardItemListView::IconsLayout:
  48         calculateIconsLayoutItemSizeHints(logicalHeightHints, logicalWidthHint, view);
  49         break;
  50
  51     case KStandardItemListView::CompactLayout:
  52         calculateCompactLayoutItemSizeHints(logicalHeightHints, logicalWidthHint, view);
  53         break;
  54
  55     case KStandardItemListView::DetailsLayout:
  56         calculateDetailsLayoutItemSizeHints(logicalHeightHints, logicalWidthHint, view);
  57         break;
  58
  59     default:
  60         Q_ASSERT(false);
  61         break;
  62     }
  63 }
  64
  65 qreal KStandardItemListWidgetInformant::preferredRoleColumnWidth(const QByteArray &role, int index, const KItemListView *view) const
  66 {
  67     const QHash<QByteArray, QVariant> values = view->model()->data(index);
  68     const KItemListStyleOption &option = view->styleOption();
  69
  70     const QString text = roleText(role, values);
  71     qreal width = KStandardItemListWidget::columnPadding(option);
  72
  73     const QFontMetrics &normalFontMetrics = option.fontMetrics;
  74     const QFontMetrics linkFontMetrics(customizedFontForLinks(option.font));
  75
  76     if (role == "rating") {
  77         width += KStandardItemListWidget::preferredRatingSize(option).width();
  78     } else {
  79         // If current item is a link, we use the customized link font metrics instead of the normal font metrics.
  80         const QFontMetrics &fontMetrics = itemIsLink(index, view) ? linkFontMetrics : normalFontMetrics;
  81
  82         width += fontMetrics.horizontalAdvance(text);
  83
  84         if (role == "text") {
  85             if (view->supportsItemExpanding()) {
  86                 // Increase the width by the expansion-toggle and the current expansion level
  87                 const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
  88                 const qreal height = option.padding * 2 + qMax(option.iconSize, fontMetrics.height());
  89                 width += (expandedParentsCount + 1) * height;
  90             }
  91
  92             // Increase the width by the required space for the icon
  93             width += option.padding * 2 + option.iconSize;
  94         }
  95     }
  96
  97     return width;
  98 }
  99
 100 QString KStandardItemListWidgetInformant::itemText(int index, const KItemListView *view) const
 101 {
 102     return view->model()->data(index).value("text").toString();
 103 }
 104
 105 bool KStandardItemListWidgetInformant::itemIsLink(int index, const KItemListView *view) const
 106 {
 107     Q_UNUSED(index)
 108     Q_UNUSED(view)
 109     return false;
 110 }
 111
 112 QString KStandardItemListWidgetInformant::roleText(const QByteArray &role, const QHash<QByteArray, QVariant> &values, ForUsageAs forUsageAs) const
 113 {
 114     if (role == "rating") {
 115         if (forUsageAs == ForUsageAs::DisplayedText) {
 116             // Always use an empty text, as the rating is shown by the image m_rating.
 117             return QString();
 118         } else {
 119             const int rating{values.value(role).toInt()};
 120             // Check if there are half stars
 121             if (rating % 2) {
 122                 return i18ncp("@accessible rating", "%1 and a half stars", "%1 and a half stars", rating / 2);
 123             }
 124             return i18ncp("@accessible rating", "%1 star", "%1 stars", rating / 2);
 125         }
 126     }
 127     return values.value(role).toString();
 128 }
 129
 130 QFont KStandardItemListWidgetInformant::customizedFontForLinks(const QFont &baseFont) const
 131 {
 132     return baseFont;
 133 }
 134
 135 void KStandardItemListWidgetInformant::calculateIconsLayoutItemSizeHints(QVector<std::pair<qreal, bool>> &logicalHeightHints,
 136                                                                          qreal &logicalWidthHint,
 137                                                                          const KItemListView *view) const
 138 {
 139     const KItemListStyleOption &option = view->styleOption();
 140     const QFont &normalFont = option.font;
 141     const int additionalRolesCount = qMax(view->visibleRoles().count() - 1, 0);
 142
 143     const qreal itemWidth = view->itemSize().width();
 144     const qreal maxWidth = itemWidth - 2 * option.padding;
 145     const qreal additionalRolesSpacing = additionalRolesCount * option.fontMetrics.lineSpacing();
 146     const qreal spacingAndIconHeight = option.iconSize + option.padding * 3;
 147
 148     const QFont linkFont = customizedFontForLinks(normalFont);
 149
 150     QTextOption textOption(Qt::AlignHCenter);
 151     textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 152
 153     for (int index = 0; index < logicalHeightHints.count(); ++index) {
 154         if (logicalHeightHints.at(index).first > 0.0) {
 155             continue;
 156         }
 157
 158         // If the current item is a link, we use the customized link font instead of the normal font.
 159         const QFont &font = itemIsLink(index, view) ? linkFont : normalFont;
 160
 161         const QString &text = KStringHandler::preProcessWrap(itemText(index, view));
 162
 163         // Calculate the number of lines required for wrapping the name
 164         qreal textHeight = 0;
 165         QTextLayout layout(text, font);
 166         layout.setTextOption(textOption);
 167         layout.beginLayout();
 168         QTextLine line;
 169         int lineCount = 0;
 170         bool isElided = false;
 171         while ((line = layout.createLine()).isValid()) {
 172             line.setLineWidth(maxWidth);
 173             line.naturalTextWidth();
 174             textHeight += line.height();
 175
 176             ++lineCount;
 177             if (lineCount == option.maxTextLines) {
 178                 isElided = layout.createLine().isValid();
 179                 break;
 180             }
 181         }
 182         layout.endLayout();
 183
 184         // Add one line for each additional information
 185         textHeight += additionalRolesSpacing;
 186
 187         logicalHeightHints[index].first = textHeight + spacingAndIconHeight;
 188         logicalHeightHints[index].second = isElided;
 189     }
 190
 191     logicalWidthHint = itemWidth;
 192 }
 193
 194 void KStandardItemListWidgetInformant::calculateCompactLayoutItemSizeHints(QVector<std::pair<qreal, bool>> &logicalHeightHints,
 195                                                                            qreal &logicalWidthHint,
 196                                                                            const KItemListView *view) const
 197 {
 198     const KItemListStyleOption &option = view->styleOption();
 199     const QFontMetrics &normalFontMetrics = option.fontMetrics;
 200     const int additionalRolesCount = qMax(view->visibleRoles().count() - 1, 0);
 201
 202     const QList<QByteArray> &visibleRoles = view->visibleRoles();
 203     const bool showOnlyTextRole = (visibleRoles.count() == 1) && (visibleRoles.first() == "text");
 204     const qreal maxWidth = option.maxTextWidth;
 205     const qreal paddingAndIconWidth = option.padding * 4 + option.iconSize;
 206     const qreal height = option.padding * 2 + qMax(option.iconSize, (1 + additionalRolesCount) * normalFontMetrics.lineSpacing());
 207
 208     const QFontMetrics linkFontMetrics(customizedFontForLinks(option.font));
 209
 210     for (int index = 0; index < logicalHeightHints.count(); ++index) {
 211         if (logicalHeightHints.at(index).first > 0.0) {
 212             continue;
 213         }
 214
 215         // If the current item is a link, we use the customized link font metrics instead of the normal font metrics.
 216         const QFontMetrics &fontMetrics = itemIsLink(index, view) ? linkFontMetrics : normalFontMetrics;
 217
 218         // For each row exactly one role is shown. Calculate the maximum required width that is necessary
 219         // to show all roles without horizontal clipping.
 220         qreal maximumRequiredWidth = 0.0;
 221
 222         if (showOnlyTextRole) {
 223             maximumRequiredWidth = fontMetrics.horizontalAdvance(itemText(index, view));
 224         } else {
 225             const QHash<QByteArray, QVariant> &values = view->model()->data(index);
 226             for (const QByteArray &role : visibleRoles) {
 227                 const QString &text = roleText(role, values);
 228                 const qreal requiredWidth = fontMetrics.horizontalAdvance(text);
 229                 maximumRequiredWidth = qMax(maximumRequiredWidth, requiredWidth);
 230             }
 231         }
 232
 233         qreal width = paddingAndIconWidth + maximumRequiredWidth;
 234         if (maxWidth > 0 && width > maxWidth) {
 235             width = maxWidth;
 236         }
 237
 238         logicalHeightHints[index].first = width;
 239     }
 240
 241     logicalWidthHint = height;
 242 }
 243
 244 void KStandardItemListWidgetInformant::calculateDetailsLayoutItemSizeHints(QVector<std::pair<qreal, bool>> &logicalHeightHints,
 245                                                                            qreal &logicalWidthHint,
 246                                                                            const KItemListView *view) const
 247 {
 248     const KItemListStyleOption &option = view->styleOption();
 249     const qreal height = option.padding * 2 + qMax(option.iconSize, option.fontMetrics.height());
 250     logicalHeightHints.fill(std::make_pair(height, false));
 251     logicalWidthHint = -1.0;
 252 }
 253
 254 KStandardItemListWidget::KStandardItemListWidget(KItemListWidgetInformant *informant, QGraphicsItem *parent)
 255     : KItemListWidget(informant, parent)
 256     , m_textInfo()
 257     , m_isCut(false)
 258     , m_isHidden(false)
 259     , m_customizedFont()
 260     , m_customizedFontMetrics(m_customizedFont)
 261     , m_isExpandable(false)
 262     , m_highlightEntireRow(false)
 263     , m_supportsItemExpanding(false)
 264     , m_dirtyLayout(true)
 265     , m_dirtyContent(true)
 266     , m_dirtyContentRoles()
 267     , m_layout(IconsLayout)
 268     , m_pixmapPos()
 269     , m_pixmap()
 270     , m_scaledPixmapSize()
 271     , m_columnWidthSum()
 272     , m_iconRect()
 273     , m_hoverPixmap()
 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 = isHovered() ? m_hoverPixmap : 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_hoverPixmap);
 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::iconRect() const
 487 {
 488     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 489     return m_iconRect;
 490 }
 491
 492 QRectF KStandardItemListWidget::textRect() const
 493 {
 494     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 495     return m_textRect;
 496 }
 497
 498 QRectF KStandardItemListWidget::textFocusRect() const
 499 {
 500     // In the compact- and details-layout a larger textRect() is returned to be aligned
 501     // with the iconRect(). This is useful to have a larger selection/hover-area
 502     // when having a quite large icon size but only one line of text. Still the
 503     // focus rectangle should be shown as narrow as possible around the text.
 504
 505     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 506
 507     switch (m_layout) {
 508     case CompactLayout: {
 509         QRectF rect = m_textRect;
 510         const TextInfo *topText = m_textInfo.value(m_sortedVisibleRoles.first());
 511         const TextInfo *bottomText = m_textInfo.value(m_sortedVisibleRoles.last());
 512         rect.setTop(topText->pos.y());
 513         rect.setBottom(bottomText->pos.y() + bottomText->staticText.size().height());
 514         return rect;
 515     }
 516
 517     case DetailsLayout: {
 518         QRectF rect = m_textRect;
 519         const TextInfo *textInfo = m_textInfo.value(m_sortedVisibleRoles.first());
 520         rect.setTop(textInfo->pos.y());
 521         rect.setBottom(textInfo->pos.y() + textInfo->staticText.size().height());
 522
 523         const KItemListStyleOption &option = styleOption();
 524         if (option.extendedSelectionRegion) {
 525             const QString text = textInfo->staticText.text();
 526             rect.setWidth(m_customizedFontMetrics.horizontalAdvance(text) + 2 * option.padding);
 527         }
 528
 529         return rect;
 530     }
 531
 532     default:
 533         break;
 534     }
 535
 536     return m_textRect;
 537 }
 538
 539 QRectF KStandardItemListWidget::selectionRect() const
 540 {
 541     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 542
 543     switch (m_layout) {
 544     case IconsLayout:
 545         return m_textRect;
 546
 547     case CompactLayout:
 548     case DetailsLayout: {
 549         const int padding = styleOption().padding;
 550         QRectF adjustedIconRect = iconRect().adjusted(-padding, -padding, padding, padding);
 551         QRectF result = adjustedIconRect | m_textRect;
 552         if (m_highlightEntireRow) {
 553             if (layoutDirection() == Qt::LeftToRight) {
 554                 result.setRight(leftPadding() + m_columnWidthSum);
 555             } else {
 556                 result.setLeft(size().width() - m_columnWidthSum - rightPadding());
 557             }
 558         }
 559         return result;
 560     }
 561
 562     default:
 563         Q_ASSERT(false);
 564         break;
 565     }
 566
 567     return m_textRect;
 568 }
 569
 570 QRectF KStandardItemListWidget::expansionToggleRect() const
 571 {
 572     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 573     return m_isExpandable ? m_expansionArea : QRectF();
 574 }
 575
 576 QRectF KStandardItemListWidget::selectionToggleRect() const
 577 {
 578     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 579
 580     const QRectF widgetIconRect = iconRect();
 581     const int widgetIconSize = iconSize();
 582     int toggleSize = KIconLoader::SizeSmall;
 583     if (widgetIconSize >= KIconLoader::SizeEnormous) {
 584         toggleSize = KIconLoader::SizeMedium;
 585     } else if (widgetIconSize >= KIconLoader::SizeLarge) {
 586         toggleSize = KIconLoader::SizeSmallMedium;
 587     }
 588
 589     QPointF pos = widgetIconRect.topLeft();
 590
 591     // If the selection toggle has a very small distance to the
 592     // widget borders, the size of the selection toggle will get
 593     // increased to prevent an accidental clicking of the item
 594     // when trying to hit the toggle.
 595     const int widgetHeight = size().height();
 596     const int widgetWidth = size().width();
 597     const int minMargin = 2;
 598
 599     if (toggleSize + minMargin * 2 >= widgetHeight) {
 600         pos.rx() -= (widgetHeight - toggleSize) / 2;
 601         toggleSize = widgetHeight;
 602         pos.setY(0);
 603     }
 604     if (toggleSize + minMargin * 2 >= widgetWidth) {
 605         pos.ry() -= (widgetWidth - toggleSize) / 2;
 606         toggleSize = widgetWidth;
 607         pos.setX(0);
 608     }
 609
 610     if (QApplication::isRightToLeft()) {
 611         pos.setX(widgetIconRect.right() - (pos.x() + toggleSize - widgetIconRect.left()));
 612     }
 613
 614     return QRectF(pos, QSizeF(toggleSize, toggleSize));
 615 }
 616
 617 QPixmap KStandardItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem *option, QWidget *widget)
 618 {
 619     QPixmap pixmap = KItemListWidget::createDragPixmap(option, widget);
 620     if (m_layout != DetailsLayout) {
 621         return pixmap;
 622     }
 623
 624     // Only return the content of the text-column as pixmap
 625     const int leftClip = m_pixmapPos.x();
 626
 627     const TextInfo *textInfo = m_textInfo.value("text");
 628     const int rightClip = textInfo->pos.x() + textInfo->staticText.size().width() + 2 * styleOption().padding;
 629
 630     QPixmap clippedPixmap(rightClip - leftClip + 1, pixmap.height());
 631     clippedPixmap.fill(Qt::transparent);
 632
 633     QPainter painter(&clippedPixmap);
 634     painter.drawPixmap(-leftClip, 0, pixmap);
 635
 636     return clippedPixmap;
 637 }
 638
 639 void KStandardItemListWidget::startActivateSoonAnimation(int timeUntilActivation)
 640 {
 641     if (m_activateSoonAnimation) {
 642         m_activateSoonAnimation->stop(); // automatically DeleteWhenStopped
 643     }
 644
 645     m_activateSoonAnimation = new QVariantAnimation{this};
 646     m_activateSoonAnimation->setStartValue(0.0);
 647     m_activateSoonAnimation->setEndValue(1.0);
 648     m_activateSoonAnimation->setDuration(timeUntilActivation);
 649
 650     const QVariant originalIconName{data()["iconName"]};
 651     connect(m_activateSoonAnimation, &QVariantAnimation::valueChanged, this, [originalIconName, this](const QVariant &value) {
 652         auto progress = value.toFloat();
 653
 654         QVariant wantedIconName;
 655         if (progress < 0.333) {
 656             wantedIconName = "folder-open";
 657         } else if (progress < 0.666) {
 658             wantedIconName = originalIconName;
 659         } else {
 660             wantedIconName = "folder-open";
 661         }
 662
 663         QHash<QByteArray, QVariant> itemData{data()};
 664         if (itemData["iconName"] != wantedIconName) {
 665             itemData.insert("iconName", wantedIconName);
 666             setData(itemData);
 667             invalidateIconCache();
 668         }
 669     });
 670
 671     connect(m_activateSoonAnimation, &QObject::destroyed, this, [originalIconName, this]() {
 672         QHash<QByteArray, QVariant> itemData{data()};
 673         if (itemData["iconName"] == "folder-open") {
 674             itemData.insert("iconName", originalIconName);
 675             setData(itemData);
 676             invalidateIconCache();
 677         }
 678     });
 679
 680     m_activateSoonAnimation->start(QAbstractAnimation::DeleteWhenStopped);
 681 }
 682
 683 bool KStandardItemListWidget::isIconControlledByActivateSoonAnimation() const
 684 {
 685     return m_activateSoonAnimation && data()["iconName"] == "folder-open";
 686 }
 687
 688 KItemListWidgetInformant *KStandardItemListWidget::createInformant()
 689 {
 690     return new KStandardItemListWidgetInformant();
 691 }
 692
 693 void KStandardItemListWidget::invalidateCache()
 694 {
 695     m_dirtyLayout = true;
 696     m_dirtyContent = true;
 697 }
 698
 699 void KStandardItemListWidget::invalidateIconCache()
 700 {
 701     m_dirtyContent = true;
 702     m_dirtyContentRoles.insert("iconPixmap");
 703 }
 704
 705 void KStandardItemListWidget::refreshCache()
 706 {
 707 }
 708
 709 bool KStandardItemListWidget::isRoleRightAligned(const QByteArray &role) const
 710 {
 711     Q_UNUSED(role)
 712     return false;
 713 }
 714
 715 bool KStandardItemListWidget::isHidden() const
 716 {
 717     return false;
 718 }
 719
 720 QFont KStandardItemListWidget::customizedFont(const QFont &baseFont) const
 721 {
 722     return baseFont;
 723 }
 724
 725 QPalette::ColorRole KStandardItemListWidget::normalTextColorRole() const
 726 {
 727     return QPalette::Text;
 728 }
 729
 730 void KStandardItemListWidget::setTextColor(const QColor &color)
 731 {
 732     if (color != m_customTextColor) {
 733         m_customTextColor = color;
 734         updateAdditionalInfoTextColor();
 735         update();
 736     }
 737 }
 738
 739 QColor KStandardItemListWidget::textColor(const QWidget &widget) const
 740 {
 741     if (!isSelected()) {
 742         if (m_isHidden) {
 743             return m_additionalInfoTextColor;
 744         } else if (m_customTextColor.isValid()) {
 745             return m_customTextColor;
 746         }
 747     }
 748
 749     const QPalette::ColorGroup group = isActiveWindow() && widget.hasFocus() ? QPalette::Active : QPalette::Inactive;
 750     const QPalette::ColorRole role = isSelected() ? QPalette::HighlightedText : normalTextColorRole();
 751     return styleOption().palette.color(group, role);
 752 }
 753
 754 void KStandardItemListWidget::setOverlays(QHash<Qt::Corner, QString> &overlays)
 755 {
 756     if (overlays == m_overlays) {
 757         return;
 758     }
 759
 760     m_overlays = overlays;
 761     m_dirtyContent = true;
 762     m_dirtyContentRoles.insert("iconOverlays");
 763     update();
 764 }
 765
 766 QHash<Qt::Corner, QString> KStandardItemListWidget::overlays() const
 767 {
 768     return m_overlays;
 769 }
 770
 771 QString KStandardItemListWidget::roleText(const QByteArray &role, const QHash<QByteArray, QVariant> &values) const
 772 {
 773     return static_cast<const KStandardItemListWidgetInformant *>(informant())->roleText(role, values);
 774 }
 775
 776 void KStandardItemListWidget::dataChanged(const QHash<QByteArray, QVariant> &current, const QSet<QByteArray> &roles)
 777 {
 778     Q_UNUSED(current)
 779
 780     m_dirtyContent = true;
 781
 782     QSet<QByteArray> dirtyRoles;
 783     if (roles.isEmpty()) {
 784         const auto visibleRoles = this->visibleRoles();
 785         dirtyRoles = QSet<QByteArray>(visibleRoles.constBegin(), visibleRoles.constEnd());
 786     } else {
 787         dirtyRoles = roles;
 788     }
 789
 790     // The URL might have changed (i.e., if the sort order of the items has
 791     // been changed). Therefore, the "is cut" state must be updated.
 792     KFileItemClipboard *clipboard = KFileItemClipboard::instance();
 793     const QUrl itemUrl = data().value("url").toUrl();
 794     m_isCut = clipboard->isCut(itemUrl);
 795
 796     // The icon-state might depend from other roles and hence is
 797     // marked as dirty whenever a role has been changed
 798     dirtyRoles.insert("iconPixmap");
 799     dirtyRoles.insert("iconName");
 800
 801     QSetIterator<QByteArray> it(dirtyRoles);
 802     while (it.hasNext()) {
 803         const QByteArray &role = it.next();
 804         m_dirtyContentRoles.insert(role);
 805     }
 806 }
 807
 808 void KStandardItemListWidget::visibleRolesChanged(const QList<QByteArray> &current, const QList<QByteArray> &previous)
 809 {
 810     Q_UNUSED(previous)
 811     m_sortedVisibleRoles = current;
 812     m_dirtyLayout = true;
 813 }
 814
 815 void KStandardItemListWidget::columnWidthChanged(const QByteArray &role, qreal current, qreal previous)
 816 {
 817     Q_UNUSED(role)
 818     Q_UNUSED(current)
 819     Q_UNUSED(previous)
 820     m_dirtyLayout = true;
 821 }
 822
 823 void KStandardItemListWidget::sidePaddingChanged(qreal leftPaddingWidth, qreal rightPaddingWidth)
 824 {
 825     Q_UNUSED(leftPaddingWidth)
 826     Q_UNUSED(rightPaddingWidth)
 827     m_dirtyLayout = true;
 828 }
 829
 830 void KStandardItemListWidget::styleOptionChanged(const KItemListStyleOption &current, const KItemListStyleOption &previous)
 831 {
 832     KItemListWidget::styleOptionChanged(current, previous);
 833
 834     updateAdditionalInfoTextColor();
 835     m_dirtyLayout = true;
 836 }
 837
 838 void KStandardItemListWidget::hoveredChanged(bool hovered)
 839 {
 840     if (!hovered && m_activateSoonAnimation) {
 841         m_activateSoonAnimation->stop(); // automatically DeleteWhenStopped
 842     }
 843     m_dirtyLayout = true;
 844 }
 845
 846 void KStandardItemListWidget::selectedChanged(bool selected)
 847 {
 848     Q_UNUSED(selected)
 849     updateAdditionalInfoTextColor();
 850     m_dirtyContent = true;
 851 }
 852
 853 void KStandardItemListWidget::siblingsInformationChanged(const QBitArray &current, const QBitArray &previous)
 854 {
 855     Q_UNUSED(current)
 856     Q_UNUSED(previous)
 857     m_dirtyLayout = true;
 858 }
 859
 860 int KStandardItemListWidget::numberOfUnicodeCharactersIn(const QString &text)
 861 {
 862     int count = 0;
 863     QTextBoundaryFinder boundaryFinder(QTextBoundaryFinder::Grapheme, text);
 864     while (boundaryFinder.toNextBoundary() != -1) {
 865         ++count;
 866     }
 867     return count;
 868 }
 869
 870 int KStandardItemListWidget::selectionLength(const QString &text) const
 871 {
 872     return numberOfUnicodeCharactersIn(text);
 873 }
 874
 875 void KStandardItemListWidget::editedRoleChanged(const QByteArray &current, const QByteArray &previous)
 876 {
 877     Q_UNUSED(previous)
 878
 879     QGraphicsView *parent = scene()->views()[0];
 880     if (current.isEmpty() || !parent || current != "text") {
 881         if (m_roleEditor) {
 882             Q_EMIT roleEditingCanceled(index(), current, data().value(current));
 883             closeRoleEditor();
 884         }
 885         return;
 886     }
 887
 888     Q_ASSERT(!m_roleEditor);
 889
 890     const TextInfo *textInfo = m_textInfo.value("text");
 891
 892     m_roleEditor = new KItemListRoleEditor(parent);
 893     m_roleEditor->setRole(current);
 894     m_roleEditor->setAllowUpDownKeyChainEdit(m_layout != IconsLayout);
 895     m_roleEditor->setFont(styleOption().font);
 896
 897     const QString text = data().value(current).toString();
 898     m_roleEditor->setPlainText(text);
 899
 900     QTextOption textOption = textInfo->staticText.textOption();
 901     m_roleEditor->document()->setDefaultTextOption(textOption);
 902
 903     const int textSelectionLength = selectionLength(text);
 904
 905     if (textSelectionLength > 0) {
 906         QTextCursor cursor = m_roleEditor->textCursor();
 907         cursor.movePosition(QTextCursor::StartOfBlock);
 908         cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, textSelectionLength);
 909         m_roleEditor->setTextCursor(cursor);
 910     }
 911
 912     connect(m_roleEditor, &KItemListRoleEditor::roleEditingCanceled, this, &KStandardItemListWidget::slotRoleEditingCanceled);
 913     connect(m_roleEditor, &KItemListRoleEditor::roleEditingFinished, this, &KStandardItemListWidget::slotRoleEditingFinished);
 914
 915     // Adjust the geometry of the editor
 916     QRectF rect = roleEditingRect(current);
 917     const int frameWidth = m_roleEditor->frameWidth();
 918     rect.adjust(-frameWidth, -frameWidth, frameWidth, frameWidth);
 919     rect.translate(pos());
 920     if (rect.right() > parent->width()) {
 921         rect.setWidth(parent->width() - rect.left());
 922     }
 923     m_roleEditor->setGeometry(rect.toRect());
 924     m_roleEditor->autoAdjustSize();
 925     m_roleEditor->show();
 926     m_roleEditor->setFocus();
 927 }
 928
 929 void KStandardItemListWidget::iconSizeChanged(int current, int previous)
 930 {
 931     KItemListWidget::iconSizeChanged(current, previous);
 932
 933     invalidateIconCache();
 934     triggerCacheRefreshing();
 935     update();
 936 }
 937
 938 void KStandardItemListWidget::resizeEvent(QGraphicsSceneResizeEvent *event)
 939 {
 940     if (m_roleEditor) {
 941         setEditedRole(QByteArray());
 942         Q_ASSERT(!m_roleEditor);
 943     }
 944
 945     KItemListWidget::resizeEvent(event);
 946
 947     m_dirtyLayout = true;
 948 }
 949
 950 void KStandardItemListWidget::showEvent(QShowEvent *event)
 951 {
 952     KItemListWidget::showEvent(event);
 953
 954     // Listen to changes of the clipboard to mark the item as cut/uncut
 955     KFileItemClipboard *clipboard = KFileItemClipboard::instance();
 956
 957     const QUrl itemUrl = data().value("url").toUrl();
 958     m_isCut = clipboard->isCut(itemUrl);
 959
 960     connect(clipboard, &KFileItemClipboard::cutItemsChanged, this, &KStandardItemListWidget::slotCutItemsChanged);
 961 }
 962
 963 void KStandardItemListWidget::hideEvent(QHideEvent *event)
 964 {
 965     disconnect(KFileItemClipboard::instance(), &KFileItemClipboard::cutItemsChanged, this, &KStandardItemListWidget::slotCutItemsChanged);
 966
 967     KItemListWidget::hideEvent(event);
 968 }
 969
 970 bool KStandardItemListWidget::event(QEvent *event)
 971 {
 972     if (event->type() == QEvent::WindowDeactivate || event->type() == QEvent::WindowActivate || event->type() == QEvent::PaletteChange) {
 973         m_dirtyContent = true;
 974     }
 975
 976     return KItemListWidget::event(event);
 977 }
 978
 979 void KStandardItemListWidget::finishRoleEditing()
 980 {
 981     if (!editedRole().isEmpty() && m_roleEditor) {
 982         slotRoleEditingFinished(editedRole(), KIO::encodeFileName(m_roleEditor->toPlainText()));
 983     }
 984 }
 985
 986 void KStandardItemListWidget::slotCutItemsChanged()
 987 {
 988     const QUrl itemUrl = data().value("url").toUrl();
 989     const bool isCut = KFileItemClipboard::instance()->isCut(itemUrl);
 990     if (m_isCut != isCut) {
 991         m_isCut = isCut;
 992         m_pixmap = QPixmap();
 993         m_dirtyContent = true;
 994         update();
 995     }
 996 }
 997
 998 void KStandardItemListWidget::slotRoleEditingCanceled(const QByteArray &role, const QVariant &value)
 999 {
1000     closeRoleEditor();
1001     Q_EMIT roleEditingCanceled(index(), role, value);
1002     setEditedRole(QByteArray());
1003 }
1004
1005 void KStandardItemListWidget::slotRoleEditingFinished(const QByteArray &role, const QVariant &value)
1006 {
1007     closeRoleEditor();
1008     Q_EMIT roleEditingFinished(index(), role, value);
1009     setEditedRole(QByteArray());
1010 }
1011
1012 void KStandardItemListWidget::triggerCacheRefreshing()
1013 {
1014     if ((!m_dirtyContent && !m_dirtyLayout) || index() < 0) {
1015         return;
1016     }
1017
1018     refreshCache();
1019
1020     const QHash<QByteArray, QVariant> values = data();
1021     m_isExpandable = m_supportsItemExpanding && values["isExpandable"].toBool();
1022     m_isHidden = isHidden();
1023     m_customizedFont = customizedFont(styleOption().font);
1024     m_customizedFontMetrics = QFontMetrics(m_customizedFont);
1025     m_columnWidthSum = std::accumulate(m_sortedVisibleRoles.begin(), m_sortedVisibleRoles.end(), qreal(), [this](qreal sum, const auto &role) {
1026         return sum + columnWidth(role);
1027     });
1028
1029     updateExpansionArea();
1030     updateTextsCache();
1031     updatePixmapCache();
1032     clearHoverCache();
1033
1034     m_dirtyLayout = false;
1035     m_dirtyContent = false;
1036     m_dirtyContentRoles.clear();
1037 }
1038
1039 void KStandardItemListWidget::updateExpansionArea()
1040 {
1041     if (m_supportsItemExpanding) {
1042         const QHash<QByteArray, QVariant> values = data();
1043         const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
1044         if (expandedParentsCount >= 0) {
1045             const int widgetIconSize = iconSize();
1046             const qreal widgetHeight = size().height();
1047             const qreal inc = (widgetHeight - widgetIconSize) / 2;
1048             const qreal x = expandedParentsCount * widgetHeight + inc;
1049             const qreal y = inc;
1050             if (layoutDirection() == Qt::LeftToRight) {
1051                 const qreal leftPaddingWidth = m_highlightEntireRow ? leftPadding() : 0;
1052                 m_expansionArea = QRectF(leftPaddingWidth + x, y, widgetIconSize, widgetIconSize);
1053                 return;
1054             }
1055             const qreal rightPaddingWidth = m_highlightEntireRow ? rightPadding() : 0;
1056             m_expansionArea = QRectF(size().width() - rightPaddingWidth - x - widgetIconSize, y, widgetIconSize, widgetIconSize);
1057             return;
1058         }
1059     }
1060
1061     m_expansionArea = QRectF();
1062 }
1063
1064 void KStandardItemListWidget::updatePixmapCache()
1065 {
1066     // Precondition: Requires already updated m_textPos values to calculate
1067     // the remaining height when the alignment is vertical.
1068
1069     const QSizeF widgetSize = size();
1070     const bool iconOnTop = (m_layout == IconsLayout);
1071     const KItemListStyleOption &option = styleOption();
1072     const qreal padding = option.padding;
1073     const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
1074
1075     const int widgetIconSize = iconSize();
1076     const int maxIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : widgetIconSize;
1077     const int maxIconHeight = widgetIconSize;
1078
1079     const QHash<QByteArray, QVariant> values = data();
1080
1081     bool updatePixmap = (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight);
1082     if (!updatePixmap && m_dirtyContent) {
1083         updatePixmap = m_dirtyContentRoles.isEmpty() || m_dirtyContentRoles.contains("iconPixmap") || m_dirtyContentRoles.contains("iconName")
1084             || m_dirtyContentRoles.contains("iconOverlays");
1085     }
1086
1087     if (updatePixmap) {
1088         m_pixmap = QPixmap();
1089
1090         int sequenceIndex = hoverSequenceIndex();
1091
1092         if (values.contains("hoverSequencePixmaps") && !isIconControlledByActivateSoonAnimation()) {
1093             // Use one of the hover sequence pixmaps instead of the default
1094             // icon pixmap.
1095
1096             const QVector<QPixmap> pixmaps = values["hoverSequencePixmaps"].value<QVector<QPixmap>>();
1097
1098             if (values.contains("hoverSequenceWraparoundPoint")) {
1099                 const float wap = values["hoverSequenceWraparoundPoint"].toFloat();
1100                 if (wap >= 1.0f) {
1101                     sequenceIndex %= static_cast<int>(wap);
1102                 }
1103             }
1104
1105             const int loadedIndex = qMax(qMin(sequenceIndex, pixmaps.size() - 1), 0);
1106
1107             if (loadedIndex != 0) {
1108                 m_pixmap = pixmaps[loadedIndex];
1109             }
1110         }
1111
1112         if (m_pixmap.isNull() && !isIconControlledByActivateSoonAnimation()) {
1113             m_pixmap = values["iconPixmap"].value<QPixmap>();
1114         }
1115
1116         if (m_pixmap.isNull()) {
1117             // Use the icon that fits to the MIME-type
1118             QString iconName = values["iconName"].toString();
1119             if (iconName.isEmpty()) {
1120                 // The icon-name has not been not resolved by KFileItemModelRolesUpdater,
1121                 // use a generic icon as fallback
1122                 iconName = QStringLiteral("unknown");
1123             }
1124             const QStringList overlays = values["iconOverlays"].toStringList();
1125             const bool hasFocus = scene()->views()[0]->parentWidget()->hasFocus();
1126             m_pixmap = pixmapForIcon(iconName,
1127                                      QSize(maxIconWidth, maxIconHeight),
1128                                      m_layout != IconsLayout && isActiveWindow() && isSelected() && hasFocus ? QIcon::Selected : QIcon::Normal);
1129
1130         } else {
1131             if (m_pixmap.width() / m_pixmap.devicePixelRatio() != maxIconWidth || m_pixmap.height() / m_pixmap.devicePixelRatio() != maxIconHeight) {
1132                 // A custom pixmap has been applied. Assure that the pixmap
1133                 // is scaled to the maximum available size.
1134                 KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight) * dpr);
1135             }
1136         }
1137
1138         if (m_pixmap.isNull()) {
1139             m_hoverPixmap = QPixmap();
1140             return;
1141         }
1142
1143         if (m_isCut) {
1144             KIconEffect::toDisabled(m_pixmap);
1145         }
1146
1147         if (m_isHidden) {
1148             KIconEffect::semiTransparent(m_pixmap);
1149         }
1150
1151         if (m_layout == IconsLayout && isSelected()) {
1152             const QColor color = palette().brush(QPalette::Normal, QPalette::Highlight).color();
1153             QImage image = m_pixmap.toImage();
1154             if (image.isNull()) {
1155                 m_hoverPixmap = QPixmap();
1156                 return;
1157             }
1158             KIconEffect::colorize(image, color, 0.8f);
1159             m_pixmap = QPixmap::fromImage(image);
1160         }
1161     }
1162
1163     int scaledIconSize = 0;
1164     if (iconOnTop) {
1165         const TextInfo *textInfo = m_textInfo.value("text");
1166         scaledIconSize = static_cast<int>(textInfo->pos.y() - 2 * padding);
1167     } else {
1168         const int textRowsCount = (m_layout == CompactLayout) ? visibleRoles().count() : 1;
1169         const qreal requiredTextHeight = textRowsCount * m_customizedFontMetrics.height();
1170         scaledIconSize = (requiredTextHeight < maxIconHeight) ? widgetSize.height() - 2 * padding : maxIconHeight;
1171     }
1172
1173     const int maxScaledIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : scaledIconSize;
1174     const int maxScaledIconHeight = scaledIconSize;
1175
1176     m_scaledPixmapSize = m_pixmap.size();
1177     m_scaledPixmapSize.scale(maxScaledIconWidth * dpr, maxScaledIconHeight * dpr, Qt::KeepAspectRatio);
1178     m_scaledPixmapSize = m_scaledPixmapSize / dpr;
1179
1180     if (iconOnTop) {
1181         // Center horizontally and align on bottom within the icon-area
1182         m_pixmapPos.setX((widgetSize.width() - m_scaledPixmapSize.width()) / 2.0);
1183         m_pixmapPos.setY(padding + scaledIconSize - m_scaledPixmapSize.height());
1184     } else {
1185         // Center horizontally and vertically within the icon-area
1186         const TextInfo *textInfo = m_textInfo.value("text");
1187         if (QApplication::isRightToLeft()) {
1188             m_pixmapPos.setX(m_textRect.right() + 2.0 * padding);
1189         } else {
1190             m_pixmapPos.setX(textInfo->pos.x() - 2.0 * padding - (scaledIconSize + m_scaledPixmapSize.width()) / 2.0);
1191         }
1192
1193         // Derive icon's vertical center from the center of the text frame, including
1194         // any necessary adjustment if the font's midline is offset from the frame center
1195         const qreal midlineShift = m_customizedFontMetrics.height() / 2.0 - m_customizedFontMetrics.descent() - m_customizedFontMetrics.capHeight() / 2.0;
1196         m_pixmapPos.setY(m_textRect.center().y() + midlineShift - m_scaledPixmapSize.height() / 2.0);
1197     }
1198
1199     if (m_layout == IconsLayout) {
1200         m_iconRect = QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize));
1201     } else {
1202         const qreal widthOffset = widgetIconSize - m_scaledPixmapSize.width();
1203         const qreal heightOffset = widgetIconSize - m_scaledPixmapSize.height();
1204         const QPointF squareIconPos(m_pixmapPos.x() - 0.5 * widthOffset, m_pixmapPos.y() - 0.5 * heightOffset);
1205         const QSizeF squareIconSize(widgetIconSize, widgetIconSize);
1206         m_iconRect = QRectF(squareIconPos, squareIconSize);
1207     }
1208
1209     // Prepare the pixmap that is used when the item gets hovered
1210     if (isHovered()) {
1211         m_hoverPixmap = m_pixmap;
1212         KIconEffect::toActive(m_hoverPixmap);
1213     } else if (hoverOpacity() <= 0.0) {
1214         // No hover animation is ongoing. Clear m_hoverPixmap to save memory.
1215         m_hoverPixmap = QPixmap();
1216     }
1217 }
1218
1219 void KStandardItemListWidget::updateTextsCache()
1220 {
1221     QTextOption textOption;
1222     switch (m_layout) {
1223     case IconsLayout:
1224         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
1225         textOption.setAlignment(Qt::AlignHCenter);
1226         break;
1227     case CompactLayout:
1228         textOption.setAlignment(QApplication::isRightToLeft() ? Qt::AlignRight : Qt::AlignLeft);
1229         textOption.setWrapMode(QTextOption::NoWrap);
1230         break;
1231     case DetailsLayout:
1232         textOption.setAlignment(Qt::AlignLeft);
1233         textOption.setWrapMode(QTextOption::NoWrap);
1234         break;
1235     default:
1236         Q_ASSERT(false);
1237         break;
1238     }
1239
1240     qDeleteAll(m_textInfo);
1241     m_textInfo.clear();
1242     for (int i = 0; i < m_sortedVisibleRoles.count(); ++i) {
1243         TextInfo *textInfo = new TextInfo();
1244         textInfo->staticText.setTextFormat(Qt::PlainText);
1245         textInfo->staticText.setPerformanceHint(QStaticText::AggressiveCaching);
1246         textInfo->staticText.setTextOption(textOption);
1247         m_textInfo.insert(m_sortedVisibleRoles[i], textInfo);
1248     }
1249
1250     switch (m_layout) {
1251     case IconsLayout:
1252         updateIconsLayoutTextCache();
1253         break;
1254     case CompactLayout:
1255         updateCompactLayoutTextCache();
1256         break;
1257     case DetailsLayout:
1258         updateDetailsLayoutTextCache();
1259         break;
1260     default:
1261         Q_ASSERT(false);
1262         break;
1263     }
1264
1265     const TextInfo *ratingTextInfo = m_textInfo.value("rating");
1266     if (ratingTextInfo) {
1267         // The text of the rating-role has been set to empty to get
1268         // replaced by a rating-image showing the rating as stars.
1269         const KItemListStyleOption &option = styleOption();
1270         QSizeF ratingSize = preferredRatingSize(option);
1271
1272         const qreal availableWidth = (m_layout == DetailsLayout) ? columnWidth("rating") - columnPadding(option) : size().width();
1273         if (ratingSize.width() > availableWidth) {
1274             ratingSize.rwidth() = availableWidth;
1275         }
1276         const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
1277         m_rating = QPixmap(ratingSize.toSize() * dpr);
1278         m_rating.setDevicePixelRatio(dpr);
1279         m_rating.fill(Qt::transparent);
1280
1281         QPainter painter(&m_rating);
1282         const QRect rect(QPoint(0, 0), ratingSize.toSize());
1283         const int rating = data().value("rating").toInt();
1284         KRatingPainter::paintRating(&painter, rect, Qt::AlignJustify | Qt::AlignVCenter, rating);
1285     } else if (!m_rating.isNull()) {
1286         m_rating = QPixmap();
1287     }
1288 }
1289
1290 QString KStandardItemListWidget::escapeString(const QString &text) const
1291 {
1292     QString escaped(text);
1293
1294     const QChar returnSymbol(0x21b5);
1295     escaped.replace('\n', returnSymbol);
1296
1297     return escaped;
1298 }
1299
1300 void KStandardItemListWidget::updateIconsLayoutTextCache()
1301 {
1302     //      +------+
1303     //      | Icon |
1304     //      +------+
1305     //
1306     //    Name role that
1307     // might get wrapped above
1308     //    several lines.
1309     //  Additional role 1
1310     //  Additional role 2
1311
1312     const QHash<QByteArray, QVariant> values = data();
1313
1314     const KItemListStyleOption &option = styleOption();
1315     const qreal padding = option.padding;
1316     const qreal maxWidth = size().width() - 2 * padding;
1317     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
1318
1319     // Initialize properties for the "text" role. It will be used as anchor
1320     // for initializing the position of the other roles.
1321     TextInfo *nameTextInfo = m_textInfo.value("text");
1322     const QString nameText = KStringHandler::preProcessWrap(escapeString(values["text"].toString()));
1323     nameTextInfo->staticText.setText(nameText);
1324
1325     // Calculate the number of lines required for the name and the required width
1326     qreal nameWidth = 0;
1327     qreal nameHeight = 0;
1328     QTextLine line;
1329
1330     QTextLayout layout(nameTextInfo->staticText.text(), m_customizedFont);
1331     layout.setTextOption(nameTextInfo->staticText.textOption());
1332     layout.beginLayout();
1333     int nameLineIndex = 0;
1334     while ((line = layout.createLine()).isValid()) {
1335         line.setLineWidth(maxWidth);
1336         nameWidth = qMax(nameWidth, line.naturalTextWidth());
1337         nameHeight += line.height();
1338
1339         ++nameLineIndex;
1340         if (nameLineIndex == option.maxTextLines) {
1341             // The maximum number of textlines has been reached. If this is
1342             // the case provide an elided text if necessary.
1343             const int textLength = line.textStart() + line.textLength();
1344             if (textLength < nameText.length()) {
1345                 // Elide the last line of the text
1346                 qreal elidingWidth = maxWidth;
1347                 qreal lastLineWidth;
1348                 do {
1349                     QString lastTextLine = nameText.mid(line.textStart());
1350                     lastTextLine = m_customizedFontMetrics.elidedText(lastTextLine, Qt::ElideMiddle, elidingWidth);
1351                     const QString elidedText = nameText.left(line.textStart()) + lastTextLine;
1352                     nameTextInfo->staticText.setText(elidedText);
1353
1354                     lastLineWidth = m_customizedFontMetrics.horizontalAdvance(lastTextLine);
1355
1356                     // We do the text eliding in a loop with decreasing width (1 px / iteration)
1357                     // to avoid problems related to different width calculation code paths
1358                     // within Qt. (see bug 337104)
1359                     elidingWidth -= 1.0;
1360                 } while (lastLineWidth > maxWidth);
1361
1362                 nameWidth = qMax(nameWidth, lastLineWidth);
1363             }
1364             break;
1365         }
1366     }
1367     layout.endLayout();
1368
1369     // Use one line for each additional information
1370     nameTextInfo->staticText.setTextWidth(maxWidth);
1371     nameTextInfo->pos = QPointF(padding, iconSize() + 2 * padding);
1372     m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2, nameTextInfo->pos.y(), nameWidth, nameHeight);
1373
1374     // Calculate the position for each additional information
1375     qreal y = nameTextInfo->pos.y() + nameHeight;
1376     for (const QByteArray &role : std::as_const(m_sortedVisibleRoles)) {
1377         if (role == "text") {
1378             continue;
1379         }
1380
1381         const QString text = roleText(role, values);
1382         TextInfo *textInfo = m_textInfo.value(role);
1383         textInfo->staticText.setText(text);
1384
1385         qreal requiredWidth = 0;
1386
1387         QTextLayout layout(text, m_customizedFont);
1388         QTextOption textOption;
1389         textOption.setWrapMode(QTextOption::NoWrap);
1390         layout.setTextOption(textOption);
1391
1392         layout.beginLayout();
1393         QTextLine textLine = layout.createLine();
1394         if (textLine.isValid()) {
1395             textLine.setLineWidth(maxWidth);
1396             requiredWidth = textLine.naturalTextWidth();
1397             if (requiredWidth > maxWidth) {
1398                 const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideMiddle, maxWidth);
1399                 textInfo->staticText.setText(elidedText);
1400                 requiredWidth = m_customizedFontMetrics.horizontalAdvance(elidedText);
1401             } else if (role == "rating") {
1402                 // Use the width of the rating pixmap, because the rating text is empty.
1403                 requiredWidth = m_rating.width() / m_rating.devicePixelRatioF();
1404             }
1405         }
1406         layout.endLayout();
1407
1408         textInfo->pos = QPointF(padding, y);
1409         textInfo->staticText.setTextWidth(maxWidth);
1410
1411         const QRectF textRect(padding + (maxWidth - requiredWidth) / 2, y, requiredWidth, lineSpacing);
1412
1413         // Ignore empty roles. Avoids a text rect taller than the area that actually contains text.
1414         if (!textRect.isEmpty()) {
1415             m_textRect |= textRect;
1416         }
1417
1418         y += lineSpacing;
1419     }
1420
1421     // Add a padding to the text rectangle
1422     m_textRect.adjust(-padding, -padding, padding, padding);
1423 }
1424
1425 void KStandardItemListWidget::updateCompactLayoutTextCache()
1426 {
1427     // +------+  Name role
1428     // | Icon |  Additional role 1
1429     // +------+  Additional role 2
1430
1431     const QHash<QByteArray, QVariant> values = data();
1432
1433     const KItemListStyleOption &option = styleOption();
1434     const qreal widgetHeight = size().height();
1435     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
1436     const qreal textLinesHeight = qMax(visibleRoles().count(), 1) * lineSpacing;
1437
1438     qreal maximumRequiredTextWidth = 0;
1439     const qreal x = QApplication::isRightToLeft() ? option.padding : option.padding * 3 + iconSize();
1440     qreal y = qRound((widgetHeight - textLinesHeight) / 2);
1441     const qreal maxWidth = size().width() - iconSize() - 4 * option.padding;
1442     for (const QByteArray &role : std::as_const(m_sortedVisibleRoles)) {
1443         const QString text = escapeString(roleText(role, values));
1444         TextInfo *textInfo = m_textInfo.value(role);
1445         textInfo->staticText.setText(text);
1446
1447         qreal requiredWidth = m_customizedFontMetrics.horizontalAdvance(text);
1448         if (requiredWidth > maxWidth) {
1449             requiredWidth = maxWidth;
1450             const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideMiddle, maxWidth);
1451             textInfo->staticText.setText(elidedText);
1452         }
1453
1454         textInfo->pos = QPointF(x, y);
1455         textInfo->staticText.setTextWidth(maxWidth);
1456
1457         maximumRequiredTextWidth = qMax(maximumRequiredTextWidth, requiredWidth);
1458
1459         y += lineSpacing;
1460     }
1461
1462     m_textRect = QRectF(x - option.padding, 0, maximumRequiredTextWidth + 2 * option.padding, widgetHeight);
1463 }
1464
1465 void KStandardItemListWidget::updateDetailsLayoutTextCache()
1466 {
1467     // Precondition: Requires already updated m_expansionArea
1468     // to determine the left position.
1469
1470     // +------+
1471     // | Icon |  Name role   Additional role 1   Additional role 2
1472     // +------+
1473     // Mirror the above for right-to-left languages.
1474     const bool isLeftToRight = QApplication::layoutDirection() == Qt::LeftToRight;
1475     m_textRect = QRectF();
1476
1477     const KItemListStyleOption &option = styleOption();
1478     const QHash<QByteArray, QVariant> values = data();
1479
1480     const qreal widgetHeight = size().height();
1481     const int fontHeight = m_customizedFontMetrics.height();
1482
1483     const qreal columnWidthInc = columnPadding(option);
1484     qreal firstColumnInc = iconSize();
1485     if (m_supportsItemExpanding) {
1486         firstColumnInc += isLeftToRight ? (m_expansionArea.left() + m_expansionArea.right() + widgetHeight) / 2
1487                                         : ((size().width() - m_expansionArea.left()) + (size().width() - m_expansionArea.right()) + widgetHeight) / 2;
1488     } else {
1489         firstColumnInc += option.padding + (isLeftToRight ? leftPadding() : rightPadding());
1490     }
1491
1492     qreal x = firstColumnInc;
1493     const qreal y = qMax(qreal(option.padding), (widgetHeight - fontHeight) / 2);
1494
1495     for (const QByteArray &role : std::as_const(m_sortedVisibleRoles)) {
1496         QString text = roleText(role, values);
1497
1498         // Elide the text in case it does not fit into the available column-width
1499         qreal requiredWidth = m_customizedFontMetrics.horizontalAdvance(text);
1500         const qreal roleWidth = columnWidth(role);
1501         qreal availableTextWidth = roleWidth - columnWidthInc;
1502
1503         const bool isTextRole = (role == "text");
1504         if (isTextRole) {
1505             text = escapeString(text);
1506             availableTextWidth -= firstColumnInc - (isLeftToRight ? leftPadding() : rightPadding());
1507         }
1508
1509         if (requiredWidth > availableTextWidth) {
1510             text = m_customizedFontMetrics.elidedText(text, Qt::ElideMiddle, availableTextWidth);
1511             requiredWidth = m_customizedFontMetrics.horizontalAdvance(text);
1512         }
1513
1514         TextInfo *textInfo = m_textInfo.value(role);
1515         textInfo->staticText.setText(text);
1516         textInfo->pos = QPointF(isLeftToRight ? (x + columnWidthInc / 2) : (size().width() - (x + columnWidthInc / 2) - requiredWidth), y);
1517         x += roleWidth;
1518
1519         if (isTextRole) {
1520             m_textRect = QRectF(textInfo->pos.x() - option.padding, 0, requiredWidth + 2 * option.padding, size().height());
1521
1522             // The column after the name should always be aligned on the same x-position independent
1523             // from the expansion-level shown in the name column
1524             x -= firstColumnInc - (isLeftToRight ? leftPadding() : rightPadding());
1525         } else if (isRoleRightAligned(role) && isLeftToRight) {
1526             textInfo->pos.rx() += roleWidth - requiredWidth - columnWidthInc;
1527         }
1528     }
1529 }
1530
1531 void KStandardItemListWidget::updateAdditionalInfoTextColor()
1532 {
1533     QColor c1;
1534     const bool hasFocus = scene()->views()[0]->parentWidget()->hasFocus();
1535     if (m_customTextColor.isValid()) {
1536         c1 = m_customTextColor;
1537     } else if (isSelected() && hasFocus && (m_layout != DetailsLayout || m_highlightEntireRow)) {
1538         // The detail text color needs to match the main text (HighlightedText) for the same level
1539         // of readability. We short circuit early here to avoid interpolating with another color.
1540         m_additionalInfoTextColor = styleOption().palette.color(QPalette::HighlightedText);
1541         return;
1542     } else {
1543         c1 = styleOption().palette.text().color();
1544     }
1545
1546     // For the color of the additional info the inactive text color
1547     // is not used as this might lead to unreadable text for some color schemes. Instead
1548     // the text color c1 is slightly mixed with the background color.
1549     const QColor c2 = styleOption().palette.base().color();
1550     const int p1 = 70;
1551     const int p2 = 100 - p1;
1552     m_additionalInfoTextColor =
1553         QColor((c1.red() * p1 + c2.red() * p2) / 100, (c1.green() * p1 + c2.green() * p2) / 100, (c1.blue() * p1 + c2.blue() * p2) / 100);
1554 }
1555
1556 QPixmap
1557 KStandardItemListWidget::addOverlays(const QPixmap &pixmap, const QHash<Qt::Corner, QString> &overlays, const QSize &size, qreal dpr, QIcon::Mode mode) const
1558 {
1559     // similar to KIconUtils::addOverlays, keep in sync preferrably
1560     if (overlays.isEmpty()) {
1561         return pixmap;
1562     }
1563
1564     int width = size.width();
1565     int height = size.height();
1566     const int iconSize = qMin(width, height);
1567
1568     // Determine the overlay icon
1569     int overlaySize;
1570     if (iconSize < 32) {
1571         overlaySize = 8;
1572     } else if (iconSize <= 48) {
1573         overlaySize = 16;
1574     } else if (iconSize <= 96) {
1575         overlaySize = 22;
1576     } else if (iconSize < 256) {
1577         overlaySize = 32;
1578     } else {
1579         overlaySize = 64;
1580     }
1581
1582     auto phyiscalSize = QSize(std::clamp(pixmap.width(), qFloor(2 * overlaySize * dpr), qFloor(size.width() * dpr)),
1583                               std::clamp(pixmap.height(), qFloor(2 * overlaySize * dpr), qFloor(size.height() * dpr)));
1584
1585     QPixmap output(phyiscalSize);
1586     output.setDevicePixelRatio(dpr);
1587     output.fill(Qt::transparent);
1588
1589     QPainter painter(&output);
1590     painter.drawPixmap(qFloor(phyiscalSize.width() / dpr / 2) - qFloor(pixmap.width() / pixmap.devicePixelRatio() / 2),
1591                        // align the icon to the bottom to match the behavior elsewhere
1592                        qFloor(phyiscalSize.height() / dpr) - qFloor(pixmap.height() / pixmap.devicePixelRatio()),
1593                        pixmap);
1594
1595     width = qCeil(phyiscalSize.width() / dpr);
1596     height = qCeil(phyiscalSize.height() / dpr);
1597
1598     // Iterate over stored overlays
1599     for (const auto &[corner, overlay] : overlays.asKeyValueRange()) {
1600         const QPixmap overlayPixmap = QIcon::fromTheme(overlay).pixmap(QSize{overlaySize, overlaySize}, dpr, mode);
1601         if (overlayPixmap.isNull()) {
1602             continue;
1603         }
1604
1605         QPoint startPoint;
1606         switch (corner) {
1607         case Qt::BottomLeftCorner:
1608             startPoint = QPoint{0, height - overlaySize};
1609             break;
1610         case Qt::BottomRightCorner:
1611             startPoint = QPoint{width - overlaySize, height - overlaySize};
1612             break;
1613         case Qt::TopRightCorner:
1614             startPoint = QPoint{width - overlaySize, 0};
1615             break;
1616         case Qt::TopLeftCorner:
1617             startPoint = QPoint{};
1618             break;
1619         }
1620         painter.drawPixmap(startPoint, overlayPixmap);
1621     }
1622
1623     return output;
1624 }
1625
1626 void KStandardItemListWidget::drawPixmap(QPainter *painter, const QPixmap &pixmap)
1627 {
1628     if (m_scaledPixmapSize != pixmap.size() / pixmap.devicePixelRatio()) {
1629         const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
1630         QPixmap scaledPixmap = pixmap;
1631         KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize * dpr);
1632         scaledPixmap.setDevicePixelRatio(dpr);
1633         painter->drawPixmap(m_pixmapPos, scaledPixmap);
1634
1635 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
1636         painter->setPen(Qt::blue);
1637         painter->drawRect(QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize)));
1638 #endif
1639     } else {
1640         painter->drawPixmap(m_pixmapPos, pixmap);
1641     }
1642 }
1643
1644 void KStandardItemListWidget::drawSiblingsInformation(QPainter *painter)
1645 {
1646     const int siblingSize = size().height();
1647     const int x = (m_expansionArea.left() + m_expansionArea.right() - siblingSize) / 2;
1648     QRect siblingRect(x, 0, siblingSize, siblingSize);
1649
1650     bool isItemSibling = true;
1651
1652     const QBitArray siblings = siblingsInformation();
1653     QStyleOption option;
1654     const auto normalColor = option.palette.color(normalTextColorRole());
1655     const auto highlightColor = option.palette.color(expansionAreaHovered() ? QPalette::Highlight : normalTextColorRole());
1656     for (int i = siblings.count() - 1; i >= 0; --i) {
1657         option.rect = siblingRect;
1658         option.state = siblings.at(i) ? QStyle::State_Sibling : QStyle::State_None;
1659         if (isItemSibling) {
1660             option.state |= QStyle::State_Item;
1661             if (m_isExpandable) {
1662                 option.state |= QStyle::State_Children;
1663             }
1664             if (data().value("isExpanded").toBool()) {
1665                 option.state |= QStyle::State_Open;
1666             }
1667             option.palette.setColor(QPalette::Text, highlightColor);
1668             isItemSibling = false;
1669         } else {
1670             option.palette.setColor(QPalette::Text, normalColor);
1671         }
1672
1673         style()->drawPrimitive(QStyle::PE_IndicatorBranch, &option, painter);
1674
1675         siblingRect.translate(layoutDirection() == Qt::LeftToRight ? -siblingRect.width() : siblingRect.width(), 0);
1676     }
1677 }
1678
1679 QRectF KStandardItemListWidget::roleEditingRect(const QByteArray &role) const
1680 {
1681     const TextInfo *textInfo = m_textInfo.value(role);
1682     if (!textInfo) {
1683         return QRectF();
1684     }
1685
1686     QRectF rect(textInfo->pos, textInfo->staticText.size());
1687     if (m_layout == DetailsLayout) {
1688         rect.setWidth(columnWidth(role) - rect.x());
1689     }
1690
1691     return rect;
1692 }
1693
1694 void KStandardItemListWidget::closeRoleEditor()
1695 {
1696     disconnect(m_roleEditor, &KItemListRoleEditor::roleEditingCanceled, this, &KStandardItemListWidget::slotRoleEditingCanceled);
1697     disconnect(m_roleEditor, &KItemListRoleEditor::roleEditingFinished, this, &KStandardItemListWidget::slotRoleEditingFinished);
1698
1699     if (m_roleEditor->hasFocus()) {
1700         // If the editing was not ended by a FocusOut event, we have
1701         // to transfer the keyboard focus back to the KItemListContainer.
1702         scene()->views()[0]->parentWidget()->setFocus();
1703     }
1704
1705     if (m_oldRoleEditor) {
1706         m_oldRoleEditor->deleteLater();
1707     }
1708     m_oldRoleEditor = m_roleEditor;
1709     m_roleEditor->hide();
1710     m_roleEditor = nullptr;
1711 }
1712
1713 QPixmap KStandardItemListWidget::pixmapForIcon(const QString &name, const QSize &size, QIcon::Mode mode) const
1714 {
1715     static const QIcon fallbackIcon = QIcon::fromTheme(QStringLiteral("unknown"));
1716     const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
1717
1718     int iconHeight = size.height();
1719     QSize iconSize = QSize(iconHeight, iconHeight);
1720
1721     const QString key = "KStandardItemListWidget:" % name % ":" % QString::number(iconHeight) % "@" % QString::number(dpr) % ":" % QString::number(mode);
1722     QPixmap pixmap;
1723
1724     if (!QPixmapCache::find(key, &pixmap)) {
1725         QIcon icon = QIcon::fromTheme(name);
1726         if (icon.isNull()) {
1727             icon = QIcon(name);
1728         }
1729         if (!icon.isNull()) {
1730             pixmap = icon.pixmap(iconSize, dpr, mode);
1731         }
1732         if (pixmap.isNull()) {
1733             icon = fallbackIcon;
1734             pixmap = icon.pixmap(iconSize, dpr, mode);
1735         }
1736         if (pixmap.width() != iconHeight * dpr || pixmap.height() != iconHeight * dpr) {
1737             KPixmapModifier::scale(pixmap, iconSize * dpr);
1738         }
1739
1740         QPixmapCache::insert(key, pixmap);
1741     }
1742     pixmap.setDevicePixelRatio(dpr);
1743
1744     return pixmap;
1745 }
1746
1747 QSizeF KStandardItemListWidget::preferredRatingSize(const KItemListStyleOption &option)
1748 {
1749     const qreal height = option.fontMetrics.ascent();
1750     return QSizeF(height * 5, height);
1751 }
1752
1753 qreal KStandardItemListWidget::columnPadding(const KItemListStyleOption &option)
1754 {
1755     return option.padding * 6;
1756 }
1757
1758 #include "moc_kstandarditemlistwidget.cpp"