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     const KItemListStyleOption &itemListStyleOption = styleOption();
 349     if (isHovered() && !m_pixmap.isNull()) {
 350         if (hoverOpacity() < 1.0) {
 351             /*
 352              * Linear interpolation between m_pixmap and m_hoverPixmap.
 353              *
 354              * Note that this cannot be achieved by painting m_hoverPixmap over
 355              * m_pixmap, even if the opacities are adjusted. For details see
 356              * https://git.reviewboard.kde.org/r/109614/
 357              */
 358             // Paint pixmap1 so that pixmap1 = m_pixmap * (1.0 - hoverOpacity())
 359             QPixmap pixmap1(m_pixmap.size());
 360             pixmap1.setDevicePixelRatio(m_pixmap.devicePixelRatio());
 361             pixmap1.fill(Qt::transparent);
 362             {
 363                 QPainter p(&pixmap1);
 364                 p.setOpacity(1.0 - hoverOpacity());
 365                 p.drawPixmap(0, 0, m_pixmap);
 366             }
 367
 368             // Paint pixmap2 so that pixmap2 = m_hoverPixmap * hoverOpacity()
 369             QPixmap pixmap2(pixmap1.size());
 370             pixmap2.setDevicePixelRatio(pixmap1.devicePixelRatio());
 371             pixmap2.fill(Qt::transparent);
 372             {
 373                 QPainter p(&pixmap2);
 374                 p.setOpacity(hoverOpacity());
 375                 p.drawPixmap(0, 0, m_hoverPixmap);
 376             }
 377
 378             // Paint pixmap2 on pixmap1 using CompositionMode_Plus
 379             // Now pixmap1 = pixmap2 + m_pixmap * (1.0 - hoverOpacity())
 380             //             = m_hoverPixmap * hoverOpacity() + m_pixmap * (1.0 - hoverOpacity())
 381             {
 382                 QPainter p(&pixmap1);
 383                 p.setCompositionMode(QPainter::CompositionMode_Plus);
 384                 p.drawPixmap(0, 0, pixmap2);
 385             }
 386
 387             // Finally paint pixmap1 on the widget
 388             drawPixmap(painter, pixmap1);
 389         } else {
 390             drawPixmap(painter, m_hoverPixmap);
 391         }
 392     } else if (!m_pixmap.isNull()) {
 393         drawPixmap(painter, m_pixmap);
 394     }
 395
 396     painter->setFont(m_customizedFont);
 397     painter->setPen(textColor(*widget));
 398     const TextInfo *textInfo = m_textInfo.value("text");
 399
 400     if (!textInfo) {
 401         // It seems that we can end up here even if m_textInfo does not contain
 402         // the key "text", see bug 306167. According to triggerCacheRefreshing(),
 403         // this can only happen if the index is negative. This can happen when
 404         // the item is about to be removed, see KItemListView::slotItemsRemoved().
 405         // TODO: try to reproduce the crash and find a better fix.
 406         return;
 407     }
 408
 409     painter->drawStaticText(textInfo->pos, textInfo->staticText);
 410
 411     bool clipAdditionalInfoBounds = false;
 412     if (m_supportsItemExpanding && m_sortedVisibleRoles.count() > 1) {
 413         // Prevent a possible overlapping of the additional-information-texts with the icon.
 414         // This will happen if the user has resized the width of the name-column to be very narrow while having folders expanded.
 415         // 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.
 416         // This needs to work both for left-to-right as well as right-to-left layout directions.
 417         const TextInfo *potentiallyOverlappingRoleText = m_textInfo.value(m_sortedVisibleRoles[1]); // Only the first column after the name column can overlap.
 418         if (layoutDirection() == Qt::LeftToRight) { // In left-to-right languages the left end of text would overlap. This is mirrored for right-to-left.
 419             const qreal minX = m_iconRect.right() + 2 * itemListStyleOption.padding;
 420             if (potentiallyOverlappingRoleText->pos.x() < minX) {
 421                 clipAdditionalInfoBounds = true;
 422                 painter->save();
 423                 painter->setClipRect(minX, 0, size().width() - minX, size().height(), Qt::IntersectClip);
 424             }
 425         } else {
 426             const qreal maxX = m_iconRect.left() - 2 * itemListStyleOption.padding;
 427             if (potentiallyOverlappingRoleText->pos.x() + m_customizedFontMetrics.horizontalAdvance(potentiallyOverlappingRoleText->staticText.text()) > maxX) {
 428                 clipAdditionalInfoBounds = true;
 429                 painter->save();
 430                 painter->setClipRect(0, 0, maxX, size().height(), Qt::IntersectClip);
 431             }
 432         }
 433     }
 434
 435     painter->setPen(m_additionalInfoTextColor);
 436     painter->setFont(m_customizedFont);
 437
 438     for (int i = 1; i < m_sortedVisibleRoles.count(); ++i) {
 439         const TextInfo *textInfo = m_textInfo.value(m_sortedVisibleRoles[i]);
 440         painter->drawStaticText(textInfo->pos, textInfo->staticText);
 441     }
 442
 443     if (!m_rating.isNull()) {
 444         const TextInfo *ratingTextInfo = m_textInfo.value("rating");
 445         QPointF pos = ratingTextInfo->pos;
 446         const Qt::Alignment align = ratingTextInfo->staticText.textOption().alignment();
 447         if (align & Qt::AlignHCenter) {
 448             pos.rx() += (size().width() - m_rating.width() / m_rating.devicePixelRatioF()) / 2 - 2;
 449         }
 450         painter->drawPixmap(pos, m_rating);
 451     }
 452
 453     if (clipAdditionalInfoBounds) {
 454         painter->restore();
 455     }
 456
 457 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
 458     painter->setBrush(Qt::NoBrush);
 459     painter->setPen(Qt::green);
 460     painter->drawRect(m_iconRect);
 461
 462     painter->setPen(Qt::blue);
 463     painter->drawRect(m_textRect);
 464
 465     painter->setPen(Qt::red);
 466     painter->drawText(QPointF(0, m_customizedFontMetrics.height()), QString::number(index()));
 467     painter->drawRect(rect());
 468 #endif
 469 }
 470
 471 QRectF KStandardItemListWidget::iconRect() const
 472 {
 473     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 474     return m_iconRect;
 475 }
 476
 477 QRectF KStandardItemListWidget::textRect() const
 478 {
 479     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 480     return m_textRect;
 481 }
 482
 483 QRectF KStandardItemListWidget::textFocusRect() const
 484 {
 485     // In the compact- and details-layout a larger textRect() is returned to be aligned
 486     // with the iconRect(). This is useful to have a larger selection/hover-area
 487     // when having a quite large icon size but only one line of text. Still the
 488     // focus rectangle should be shown as narrow as possible around the text.
 489
 490     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 491
 492     switch (m_layout) {
 493     case CompactLayout: {
 494         QRectF rect = m_textRect;
 495         const TextInfo *topText = m_textInfo.value(m_sortedVisibleRoles.first());
 496         const TextInfo *bottomText = m_textInfo.value(m_sortedVisibleRoles.last());
 497         rect.setTop(topText->pos.y());
 498         rect.setBottom(bottomText->pos.y() + bottomText->staticText.size().height());
 499         return rect;
 500     }
 501
 502     case DetailsLayout: {
 503         QRectF rect = m_textRect;
 504         const TextInfo *textInfo = m_textInfo.value(m_sortedVisibleRoles.first());
 505         rect.setTop(textInfo->pos.y());
 506         rect.setBottom(textInfo->pos.y() + textInfo->staticText.size().height());
 507
 508         const KItemListStyleOption &option = styleOption();
 509         if (option.extendedSelectionRegion) {
 510             const QString text = textInfo->staticText.text();
 511             rect.setWidth(m_customizedFontMetrics.horizontalAdvance(text) + 2 * option.padding);
 512         }
 513
 514         return rect;
 515     }
 516
 517     default:
 518         break;
 519     }
 520
 521     return m_textRect;
 522 }
 523
 524 QRectF KStandardItemListWidget::selectionRect() const
 525 {
 526     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 527
 528     switch (m_layout) {
 529     case IconsLayout:
 530         return m_textRect;
 531
 532     case CompactLayout:
 533     case DetailsLayout: {
 534         const int padding = styleOption().padding;
 535         QRectF adjustedIconRect = iconRect().adjusted(-padding, -padding, padding, padding);
 536         QRectF result = adjustedIconRect | m_textRect;
 537         if (m_highlightEntireRow) {
 538             if (layoutDirection() == Qt::LeftToRight) {
 539                 result.setRight(leftPadding() + m_columnWidthSum);
 540             } else {
 541                 result.setLeft(size().width() - m_columnWidthSum - rightPadding());
 542             }
 543         }
 544         return result;
 545     }
 546
 547     default:
 548         Q_ASSERT(false);
 549         break;
 550     }
 551
 552     return m_textRect;
 553 }
 554
 555 QRectF KStandardItemListWidget::expansionToggleRect() const
 556 {
 557     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 558     return m_isExpandable ? m_expansionArea : QRectF();
 559 }
 560
 561 QRectF KStandardItemListWidget::selectionToggleRect() const
 562 {
 563     const_cast<KStandardItemListWidget *>(this)->triggerCacheRefreshing();
 564
 565     const QRectF widgetIconRect = iconRect();
 566     const int widgetIconSize = iconSize();
 567     int toggleSize = KIconLoader::SizeSmall;
 568     if (widgetIconSize >= KIconLoader::SizeEnormous) {
 569         toggleSize = KIconLoader::SizeMedium;
 570     } else if (widgetIconSize >= KIconLoader::SizeLarge) {
 571         toggleSize = KIconLoader::SizeSmallMedium;
 572     }
 573
 574     QPointF pos = widgetIconRect.topLeft();
 575
 576     // If the selection toggle has a very small distance to the
 577     // widget borders, the size of the selection toggle will get
 578     // increased to prevent an accidental clicking of the item
 579     // when trying to hit the toggle.
 580     const int widgetHeight = size().height();
 581     const int widgetWidth = size().width();
 582     const int minMargin = 2;
 583
 584     if (toggleSize + minMargin * 2 >= widgetHeight) {
 585         pos.rx() -= (widgetHeight - toggleSize) / 2;
 586         toggleSize = widgetHeight;
 587         pos.setY(0);
 588     }
 589     if (toggleSize + minMargin * 2 >= widgetWidth) {
 590         pos.ry() -= (widgetWidth - toggleSize) / 2;
 591         toggleSize = widgetWidth;
 592         pos.setX(0);
 593     }
 594
 595     if (QApplication::isRightToLeft()) {
 596         pos.setX(widgetIconRect.right() - (pos.x() + toggleSize - widgetIconRect.left()));
 597     }
 598
 599     return QRectF(pos, QSizeF(toggleSize, toggleSize));
 600 }
 601
 602 QPixmap KStandardItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem *option, QWidget *widget)
 603 {
 604     QPixmap pixmap = KItemListWidget::createDragPixmap(option, widget);
 605     if (m_layout != DetailsLayout) {
 606         return pixmap;
 607     }
 608
 609     // Only return the content of the text-column as pixmap
 610     const int leftClip = m_pixmapPos.x();
 611
 612     const TextInfo *textInfo = m_textInfo.value("text");
 613     const int rightClip = textInfo->pos.x() + textInfo->staticText.size().width() + 2 * styleOption().padding;
 614
 615     QPixmap clippedPixmap(rightClip - leftClip + 1, pixmap.height());
 616     clippedPixmap.fill(Qt::transparent);
 617
 618     QPainter painter(&clippedPixmap);
 619     painter.drawPixmap(-leftClip, 0, pixmap);
 620
 621     return clippedPixmap;
 622 }
 623
 624 void KStandardItemListWidget::startActivateSoonAnimation(int timeUntilActivation)
 625 {
 626     if (m_activateSoonAnimation) {
 627         m_activateSoonAnimation->stop(); // automatically DeleteWhenStopped
 628     }
 629
 630     m_activateSoonAnimation = new QVariantAnimation{this};
 631     m_activateSoonAnimation->setStartValue(0.0);
 632     m_activateSoonAnimation->setEndValue(1.0);
 633     m_activateSoonAnimation->setDuration(timeUntilActivation);
 634
 635     const QVariant originalIconName{data()["iconName"]};
 636     connect(m_activateSoonAnimation, &QVariantAnimation::valueChanged, this, [originalIconName, this](const QVariant &value) {
 637         auto progress = value.toFloat();
 638
 639         QVariant wantedIconName;
 640         if (progress < 0.333) {
 641             wantedIconName = "folder-open";
 642         } else if (progress < 0.666) {
 643             wantedIconName = originalIconName;
 644         } else {
 645             wantedIconName = "folder-open";
 646         }
 647
 648         QHash<QByteArray, QVariant> itemData{data()};
 649         if (itemData["iconName"] != wantedIconName) {
 650             itemData.insert("iconName", wantedIconName);
 651             setData(itemData);
 652             invalidateIconCache();
 653         }
 654     });
 655
 656     connect(m_activateSoonAnimation, &QObject::destroyed, this, [originalIconName, this]() {
 657         QHash<QByteArray, QVariant> itemData{data()};
 658         if (itemData["iconName"] == "folder-open") {
 659             itemData.insert("iconName", originalIconName);
 660             setData(itemData);
 661             invalidateIconCache();
 662         }
 663     });
 664
 665     m_activateSoonAnimation->start(QAbstractAnimation::DeleteWhenStopped);
 666 }
 667
 668 bool KStandardItemListWidget::isIconControlledByActivateSoonAnimation() const
 669 {
 670     return m_activateSoonAnimation && data()["iconName"] == "folder-open";
 671 }
 672
 673 KItemListWidgetInformant *KStandardItemListWidget::createInformant()
 674 {
 675     return new KStandardItemListWidgetInformant();
 676 }
 677
 678 void KStandardItemListWidget::invalidateCache()
 679 {
 680     m_dirtyLayout = true;
 681     m_dirtyContent = true;
 682 }
 683
 684 void KStandardItemListWidget::invalidateIconCache()
 685 {
 686     m_dirtyContent = true;
 687     m_dirtyContentRoles.insert("iconPixmap");
 688 }
 689
 690 void KStandardItemListWidget::refreshCache()
 691 {
 692 }
 693
 694 bool KStandardItemListWidget::isRoleRightAligned(const QByteArray &role) const
 695 {
 696     Q_UNUSED(role)
 697     return false;
 698 }
 699
 700 bool KStandardItemListWidget::isHidden() const
 701 {
 702     return false;
 703 }
 704
 705 QFont KStandardItemListWidget::customizedFont(const QFont &baseFont) const
 706 {
 707     return baseFont;
 708 }
 709
 710 QPalette::ColorRole KStandardItemListWidget::normalTextColorRole() const
 711 {
 712     return QPalette::Text;
 713 }
 714
 715 void KStandardItemListWidget::setTextColor(const QColor &color)
 716 {
 717     if (color != m_customTextColor) {
 718         m_customTextColor = color;
 719         updateAdditionalInfoTextColor();
 720         update();
 721     }
 722 }
 723
 724 QColor KStandardItemListWidget::textColor(const QWidget &widget) const
 725 {
 726     if (!isSelected()) {
 727         if (m_isHidden) {
 728             return m_additionalInfoTextColor;
 729         } else if (m_customTextColor.isValid()) {
 730             return m_customTextColor;
 731         }
 732     }
 733
 734     const QPalette::ColorGroup group = isActiveWindow() && widget.hasFocus() ? QPalette::Active : QPalette::Inactive;
 735     const QPalette::ColorRole role = isSelected() ? QPalette::HighlightedText : normalTextColorRole();
 736     return styleOption().palette.color(group, role);
 737 }
 738
 739 void KStandardItemListWidget::setOverlays(QHash<Qt::Corner, QString> &overlays)
 740 {
 741     if (overlays == m_overlays) {
 742         return;
 743     }
 744
 745     m_overlays = overlays;
 746     m_dirtyContent = true;
 747     m_dirtyContentRoles.insert("iconOverlays");
 748     update();
 749 }
 750
 751 QHash<Qt::Corner, QString> KStandardItemListWidget::overlays() const
 752 {
 753     return m_overlays;
 754 }
 755
 756 QString KStandardItemListWidget::roleText(const QByteArray &role, const QHash<QByteArray, QVariant> &values) const
 757 {
 758     return static_cast<const KStandardItemListWidgetInformant *>(informant())->roleText(role, values);
 759 }
 760
 761 void KStandardItemListWidget::dataChanged(const QHash<QByteArray, QVariant> &current, const QSet<QByteArray> &roles)
 762 {
 763     Q_UNUSED(current)
 764
 765     m_dirtyContent = true;
 766
 767     QSet<QByteArray> dirtyRoles;
 768     if (roles.isEmpty()) {
 769         const auto visibleRoles = this->visibleRoles();
 770         dirtyRoles = QSet<QByteArray>(visibleRoles.constBegin(), visibleRoles.constEnd());
 771     } else {
 772         dirtyRoles = roles;
 773     }
 774
 775     // The URL might have changed (i.e., if the sort order of the items has
 776     // been changed). Therefore, the "is cut" state must be updated.
 777     KFileItemClipboard *clipboard = KFileItemClipboard::instance();
 778     const QUrl itemUrl = data().value("url").toUrl();
 779     m_isCut = clipboard->isCut(itemUrl);
 780
 781     // The icon-state might depend from other roles and hence is
 782     // marked as dirty whenever a role has been changed
 783     dirtyRoles.insert("iconPixmap");
 784     dirtyRoles.insert("iconName");
 785
 786     QSetIterator<QByteArray> it(dirtyRoles);
 787     while (it.hasNext()) {
 788         const QByteArray &role = it.next();
 789         m_dirtyContentRoles.insert(role);
 790     }
 791 }
 792
 793 void KStandardItemListWidget::visibleRolesChanged(const QList<QByteArray> &current, const QList<QByteArray> &previous)
 794 {
 795     Q_UNUSED(previous)
 796     m_sortedVisibleRoles = current;
 797     m_dirtyLayout = true;
 798 }
 799
 800 void KStandardItemListWidget::columnWidthChanged(const QByteArray &role, qreal current, qreal previous)
 801 {
 802     Q_UNUSED(role)
 803     Q_UNUSED(current)
 804     Q_UNUSED(previous)
 805     m_dirtyLayout = true;
 806 }
 807
 808 void KStandardItemListWidget::sidePaddingChanged(qreal leftPaddingWidth, qreal rightPaddingWidth)
 809 {
 810     Q_UNUSED(leftPaddingWidth)
 811     Q_UNUSED(rightPaddingWidth)
 812     m_dirtyLayout = true;
 813 }
 814
 815 void KStandardItemListWidget::styleOptionChanged(const KItemListStyleOption &current, const KItemListStyleOption &previous)
 816 {
 817     KItemListWidget::styleOptionChanged(current, previous);
 818
 819     updateAdditionalInfoTextColor();
 820     m_dirtyLayout = true;
 821 }
 822
 823 void KStandardItemListWidget::hoveredChanged(bool hovered)
 824 {
 825     if (!hovered && m_activateSoonAnimation) {
 826         m_activateSoonAnimation->stop(); // automatically DeleteWhenStopped
 827     }
 828     m_dirtyLayout = true;
 829 }
 830
 831 void KStandardItemListWidget::selectedChanged(bool selected)
 832 {
 833     Q_UNUSED(selected)
 834     updateAdditionalInfoTextColor();
 835     m_dirtyContent = true;
 836 }
 837
 838 void KStandardItemListWidget::siblingsInformationChanged(const QBitArray &current, const QBitArray &previous)
 839 {
 840     Q_UNUSED(current)
 841     Q_UNUSED(previous)
 842     m_dirtyLayout = true;
 843 }
 844
 845 int KStandardItemListWidget::numberOfUnicodeCharactersIn(const QString &text)
 846 {
 847     int count = 0;
 848     QTextBoundaryFinder boundaryFinder(QTextBoundaryFinder::Grapheme, text);
 849     while (boundaryFinder.toNextBoundary() != -1) {
 850         ++count;
 851     }
 852     return count;
 853 }
 854
 855 int KStandardItemListWidget::selectionLength(const QString &text) const
 856 {
 857     return numberOfUnicodeCharactersIn(text);
 858 }
 859
 860 void KStandardItemListWidget::editedRoleChanged(const QByteArray &current, const QByteArray &previous)
 861 {
 862     Q_UNUSED(previous)
 863
 864     QGraphicsView *parent = scene()->views()[0];
 865     if (current.isEmpty() || !parent || current != "text") {
 866         if (m_roleEditor) {
 867             Q_EMIT roleEditingCanceled(index(), current, data().value(current));
 868             closeRoleEditor();
 869         }
 870         return;
 871     }
 872
 873     Q_ASSERT(!m_roleEditor);
 874
 875     const TextInfo *textInfo = m_textInfo.value("text");
 876
 877     m_roleEditor = new KItemListRoleEditor(parent);
 878     m_roleEditor->setRole(current);
 879     m_roleEditor->setAllowUpDownKeyChainEdit(m_layout != IconsLayout);
 880     m_roleEditor->setFont(styleOption().font);
 881
 882     const QString text = data().value(current).toString();
 883     m_roleEditor->setPlainText(text);
 884
 885     QTextOption textOption = textInfo->staticText.textOption();
 886     m_roleEditor->document()->setDefaultTextOption(textOption);
 887
 888     const int textSelectionLength = selectionLength(text);
 889
 890     if (textSelectionLength > 0) {
 891         QTextCursor cursor = m_roleEditor->textCursor();
 892         cursor.movePosition(QTextCursor::StartOfBlock);
 893         cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, textSelectionLength);
 894         m_roleEditor->setTextCursor(cursor);
 895     }
 896
 897     connect(m_roleEditor, &KItemListRoleEditor::roleEditingCanceled, this, &KStandardItemListWidget::slotRoleEditingCanceled);
 898     connect(m_roleEditor, &KItemListRoleEditor::roleEditingFinished, this, &KStandardItemListWidget::slotRoleEditingFinished);
 899
 900     // Adjust the geometry of the editor
 901     QRectF rect = roleEditingRect(current);
 902     const int frameWidth = m_roleEditor->frameWidth();
 903     rect.adjust(-frameWidth, -frameWidth, frameWidth, frameWidth);
 904     rect.translate(pos());
 905     if (rect.right() > parent->width()) {
 906         rect.setWidth(parent->width() - rect.left());
 907     }
 908     m_roleEditor->setGeometry(rect.toRect());
 909     m_roleEditor->autoAdjustSize();
 910     m_roleEditor->show();
 911     m_roleEditor->setFocus();
 912 }
 913
 914 void KStandardItemListWidget::iconSizeChanged(int current, int previous)
 915 {
 916     KItemListWidget::iconSizeChanged(current, previous);
 917
 918     invalidateIconCache();
 919     triggerCacheRefreshing();
 920     update();
 921 }
 922
 923 void KStandardItemListWidget::resizeEvent(QGraphicsSceneResizeEvent *event)
 924 {
 925     if (m_roleEditor) {
 926         setEditedRole(QByteArray());
 927         Q_ASSERT(!m_roleEditor);
 928     }
 929
 930     KItemListWidget::resizeEvent(event);
 931
 932     m_dirtyLayout = true;
 933 }
 934
 935 void KStandardItemListWidget::showEvent(QShowEvent *event)
 936 {
 937     KItemListWidget::showEvent(event);
 938
 939     // Listen to changes of the clipboard to mark the item as cut/uncut
 940     KFileItemClipboard *clipboard = KFileItemClipboard::instance();
 941
 942     const QUrl itemUrl = data().value("url").toUrl();
 943     m_isCut = clipboard->isCut(itemUrl);
 944
 945     connect(clipboard, &KFileItemClipboard::cutItemsChanged, this, &KStandardItemListWidget::slotCutItemsChanged);
 946 }
 947
 948 void KStandardItemListWidget::hideEvent(QHideEvent *event)
 949 {
 950     disconnect(KFileItemClipboard::instance(), &KFileItemClipboard::cutItemsChanged, this, &KStandardItemListWidget::slotCutItemsChanged);
 951
 952     KItemListWidget::hideEvent(event);
 953 }
 954
 955 bool KStandardItemListWidget::event(QEvent *event)
 956 {
 957     if (event->type() == QEvent::WindowDeactivate || event->type() == QEvent::WindowActivate || event->type() == QEvent::PaletteChange) {
 958         m_dirtyContent = true;
 959     }
 960
 961     return KItemListWidget::event(event);
 962 }
 963
 964 void KStandardItemListWidget::finishRoleEditing()
 965 {
 966     if (!editedRole().isEmpty() && m_roleEditor) {
 967         slotRoleEditingFinished(editedRole(), KIO::encodeFileName(m_roleEditor->toPlainText()));
 968     }
 969 }
 970
 971 void KStandardItemListWidget::slotCutItemsChanged()
 972 {
 973     const QUrl itemUrl = data().value("url").toUrl();
 974     const bool isCut = KFileItemClipboard::instance()->isCut(itemUrl);
 975     if (m_isCut != isCut) {
 976         m_isCut = isCut;
 977         m_pixmap = QPixmap();
 978         m_dirtyContent = true;
 979         update();
 980     }
 981 }
 982
 983 void KStandardItemListWidget::slotRoleEditingCanceled(const QByteArray &role, const QVariant &value)
 984 {
 985     closeRoleEditor();
 986     Q_EMIT roleEditingCanceled(index(), role, value);
 987     setEditedRole(QByteArray());
 988 }
 989
 990 void KStandardItemListWidget::slotRoleEditingFinished(const QByteArray &role, const QVariant &value)
 991 {
 992     closeRoleEditor();
 993     Q_EMIT roleEditingFinished(index(), role, value);
 994     setEditedRole(QByteArray());
 995 }
 996
 997 void KStandardItemListWidget::triggerCacheRefreshing()
 998 {
 999     if ((!m_dirtyContent && !m_dirtyLayout) || index() < 0) {
1000         return;
1001     }
1002
1003     refreshCache();
1004
1005     const QHash<QByteArray, QVariant> values = data();
1006     m_isExpandable = m_supportsItemExpanding && values["isExpandable"].toBool();
1007     m_isHidden = isHidden();
1008     m_customizedFont = customizedFont(styleOption().font);
1009     m_customizedFontMetrics = QFontMetrics(m_customizedFont);
1010     m_columnWidthSum = std::accumulate(m_sortedVisibleRoles.begin(), m_sortedVisibleRoles.end(), qreal(), [this](qreal sum, const auto &role) {
1011         return sum + columnWidth(role);
1012     });
1013
1014     updateExpansionArea();
1015     updateTextsCache();
1016     updatePixmapCache();
1017     clearHoverCache();
1018
1019     m_dirtyLayout = false;
1020     m_dirtyContent = false;
1021     m_dirtyContentRoles.clear();
1022 }
1023
1024 void KStandardItemListWidget::updateExpansionArea()
1025 {
1026     if (m_supportsItemExpanding) {
1027         const QHash<QByteArray, QVariant> values = data();
1028         const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
1029         if (expandedParentsCount >= 0) {
1030             const int widgetIconSize = iconSize();
1031             const qreal widgetHeight = size().height();
1032             const qreal inc = (widgetHeight - widgetIconSize) / 2;
1033             const qreal x = expandedParentsCount * widgetHeight + inc;
1034             const qreal y = inc;
1035             if (layoutDirection() == Qt::LeftToRight) {
1036                 const qreal leftPaddingWidth = m_highlightEntireRow ? leftPadding() : 0;
1037                 m_expansionArea = QRectF(leftPaddingWidth + x, y, widgetIconSize, widgetIconSize);
1038                 return;
1039             }
1040             const qreal rightPaddingWidth = m_highlightEntireRow ? rightPadding() : 0;
1041             m_expansionArea = QRectF(size().width() - rightPaddingWidth - x - widgetIconSize, y, widgetIconSize, widgetIconSize);
1042             return;
1043         }
1044     }
1045
1046     m_expansionArea = QRectF();
1047 }
1048
1049 void KStandardItemListWidget::updatePixmapCache()
1050 {
1051     // Precondition: Requires already updated m_textPos values to calculate
1052     // the remaining height when the alignment is vertical.
1053
1054     const QSizeF widgetSize = size();
1055     const bool iconOnTop = (m_layout == IconsLayout);
1056     const KItemListStyleOption &option = styleOption();
1057     const qreal padding = option.padding;
1058     const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
1059
1060     const int widgetIconSize = iconSize();
1061     const int maxIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : widgetIconSize;
1062     const int maxIconHeight = widgetIconSize;
1063
1064     const QHash<QByteArray, QVariant> values = data();
1065
1066     bool updatePixmap = (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight);
1067     if (!updatePixmap && m_dirtyContent) {
1068         updatePixmap = m_dirtyContentRoles.isEmpty() || m_dirtyContentRoles.contains("iconPixmap") || m_dirtyContentRoles.contains("iconName")
1069             || m_dirtyContentRoles.contains("iconOverlays");
1070     }
1071
1072     if (updatePixmap) {
1073         m_pixmap = QPixmap();
1074
1075         int sequenceIndex = hoverSequenceIndex();
1076
1077         if (values.contains("hoverSequencePixmaps") && !isIconControlledByActivateSoonAnimation()) {
1078             // Use one of the hover sequence pixmaps instead of the default
1079             // icon pixmap.
1080
1081             const QVector<QPixmap> pixmaps = values["hoverSequencePixmaps"].value<QVector<QPixmap>>();
1082
1083             if (values.contains("hoverSequenceWraparoundPoint")) {
1084                 const float wap = values["hoverSequenceWraparoundPoint"].toFloat();
1085                 if (wap >= 1.0f) {
1086                     sequenceIndex %= static_cast<int>(wap);
1087                 }
1088             }
1089
1090             const int loadedIndex = qMax(qMin(sequenceIndex, pixmaps.size() - 1), 0);
1091
1092             if (loadedIndex != 0) {
1093                 m_pixmap = pixmaps[loadedIndex];
1094             }
1095         }
1096
1097         if (m_pixmap.isNull() && !isIconControlledByActivateSoonAnimation()) {
1098             m_pixmap = values["iconPixmap"].value<QPixmap>();
1099         }
1100
1101         if (m_pixmap.isNull()) {
1102             // Use the icon that fits to the MIME-type
1103             QString iconName = values["iconName"].toString();
1104             if (iconName.isEmpty()) {
1105                 // The icon-name has not been not resolved by KFileItemModelRolesUpdater,
1106                 // use a generic icon as fallback
1107                 iconName = QStringLiteral("unknown");
1108             }
1109             const QStringList overlays = values["iconOverlays"].toStringList();
1110             const bool hasFocus = scene()->views()[0]->parentWidget()->hasFocus();
1111             m_pixmap = pixmapForIcon(iconName,
1112                                      m_overlays,
1113                                      QSize(maxIconWidth, maxIconHeight),
1114                                      m_layout != IconsLayout && isActiveWindow() && isSelected() && hasFocus ? QIcon::Selected : QIcon::Normal);
1115
1116         } else {
1117             if (!m_overlays.isEmpty()) {
1118                 m_pixmap = addOverlays(m_pixmap, m_overlays, QSize(maxIconWidth, maxIconHeight), dpr);
1119             } else if (m_pixmap.width() / m_pixmap.devicePixelRatio() != maxIconWidth || m_pixmap.height() / m_pixmap.devicePixelRatio() != maxIconHeight) {
1120                 // A custom pixmap has been applied. Assure that the pixmap
1121                 // is scaled to the maximum available size.
1122                 KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight) * dpr);
1123             }
1124         }
1125
1126         if (m_pixmap.isNull()) {
1127             m_hoverPixmap = QPixmap();
1128             return;
1129         }
1130
1131         if (m_isCut) {
1132             KIconEffect::toDisabled(m_pixmap);
1133         }
1134
1135         if (m_isHidden) {
1136             KIconEffect::semiTransparent(m_pixmap);
1137         }
1138
1139         if (m_layout == IconsLayout && isSelected()) {
1140             const QColor color = palette().brush(QPalette::Normal, QPalette::Highlight).color();
1141             QImage image = m_pixmap.toImage();
1142             if (image.isNull()) {
1143                 m_hoverPixmap = QPixmap();
1144                 return;
1145             }
1146             KIconEffect::colorize(image, color, 0.8f);
1147             m_pixmap = QPixmap::fromImage(image);
1148         }
1149     }
1150
1151     int scaledIconSize = 0;
1152     if (iconOnTop) {
1153         const TextInfo *textInfo = m_textInfo.value("text");
1154         scaledIconSize = static_cast<int>(textInfo->pos.y() - 2 * padding);
1155     } else {
1156         const int textRowsCount = (m_layout == CompactLayout) ? visibleRoles().count() : 1;
1157         const qreal requiredTextHeight = textRowsCount * m_customizedFontMetrics.height();
1158         scaledIconSize = (requiredTextHeight < maxIconHeight) ? widgetSize.height() - 2 * padding : maxIconHeight;
1159     }
1160
1161     const int maxScaledIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : scaledIconSize;
1162     const int maxScaledIconHeight = scaledIconSize;
1163
1164     m_scaledPixmapSize = m_pixmap.size();
1165     m_scaledPixmapSize.scale(maxScaledIconWidth * dpr, maxScaledIconHeight * dpr, Qt::KeepAspectRatio);
1166     m_scaledPixmapSize = m_scaledPixmapSize / dpr;
1167
1168     if (iconOnTop) {
1169         // Center horizontally and align on bottom within the icon-area
1170         m_pixmapPos.setX((widgetSize.width() - m_scaledPixmapSize.width()) / 2.0);
1171         m_pixmapPos.setY(padding + scaledIconSize - m_scaledPixmapSize.height());
1172     } else {
1173         // Center horizontally and vertically within the icon-area
1174         const TextInfo *textInfo = m_textInfo.value("text");
1175         if (QApplication::isRightToLeft()) {
1176             m_pixmapPos.setX(m_textRect.right() + 2.0 * padding);
1177         } else {
1178             m_pixmapPos.setX(textInfo->pos.x() - 2.0 * padding - (scaledIconSize + m_scaledPixmapSize.width()) / 2.0);
1179         }
1180
1181         // Derive icon's vertical center from the center of the text frame, including
1182         // any necessary adjustment if the font's midline is offset from the frame center
1183         const qreal midlineShift = m_customizedFontMetrics.height() / 2.0 - m_customizedFontMetrics.descent() - m_customizedFontMetrics.capHeight() / 2.0;
1184         m_pixmapPos.setY(m_textRect.center().y() + midlineShift - m_scaledPixmapSize.height() / 2.0);
1185     }
1186
1187     if (m_layout == IconsLayout) {
1188         m_iconRect = QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize));
1189     } else {
1190         const qreal widthOffset = widgetIconSize - m_scaledPixmapSize.width();
1191         const qreal heightOffset = widgetIconSize - m_scaledPixmapSize.height();
1192         const QPointF squareIconPos(m_pixmapPos.x() - 0.5 * widthOffset, m_pixmapPos.y() - 0.5 * heightOffset);
1193         const QSizeF squareIconSize(widgetIconSize, widgetIconSize);
1194         m_iconRect = QRectF(squareIconPos, squareIconSize);
1195     }
1196
1197     // Prepare the pixmap that is used when the item gets hovered
1198     if (isHovered()) {
1199         m_hoverPixmap = m_pixmap;
1200         KIconEffect::toActive(m_hoverPixmap);
1201     } else if (hoverOpacity() <= 0.0) {
1202         // No hover animation is ongoing. Clear m_hoverPixmap to save memory.
1203         m_hoverPixmap = QPixmap();
1204     }
1205 }
1206
1207 void KStandardItemListWidget::updateTextsCache()
1208 {
1209     QTextOption textOption;
1210     switch (m_layout) {
1211     case IconsLayout:
1212         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
1213         textOption.setAlignment(Qt::AlignHCenter);
1214         break;
1215     case CompactLayout:
1216         textOption.setAlignment(QApplication::isRightToLeft() ? Qt::AlignRight : Qt::AlignLeft);
1217         textOption.setWrapMode(QTextOption::NoWrap);
1218         break;
1219     case DetailsLayout:
1220         textOption.setAlignment(Qt::AlignLeft);
1221         textOption.setWrapMode(QTextOption::NoWrap);
1222         break;
1223     default:
1224         Q_ASSERT(false);
1225         break;
1226     }
1227
1228     qDeleteAll(m_textInfo);
1229     m_textInfo.clear();
1230     for (int i = 0; i < m_sortedVisibleRoles.count(); ++i) {
1231         TextInfo *textInfo = new TextInfo();
1232         textInfo->staticText.setTextFormat(Qt::PlainText);
1233         textInfo->staticText.setPerformanceHint(QStaticText::AggressiveCaching);
1234         textInfo->staticText.setTextOption(textOption);
1235         m_textInfo.insert(m_sortedVisibleRoles[i], textInfo);
1236     }
1237
1238     switch (m_layout) {
1239     case IconsLayout:
1240         updateIconsLayoutTextCache();
1241         break;
1242     case CompactLayout:
1243         updateCompactLayoutTextCache();
1244         break;
1245     case DetailsLayout:
1246         updateDetailsLayoutTextCache();
1247         break;
1248     default:
1249         Q_ASSERT(false);
1250         break;
1251     }
1252
1253     const TextInfo *ratingTextInfo = m_textInfo.value("rating");
1254     if (ratingTextInfo) {
1255         // The text of the rating-role has been set to empty to get
1256         // replaced by a rating-image showing the rating as stars.
1257         const KItemListStyleOption &option = styleOption();
1258         QSizeF ratingSize = preferredRatingSize(option);
1259
1260         const qreal availableWidth = (m_layout == DetailsLayout) ? columnWidth("rating") - columnPadding(option) : size().width();
1261         if (ratingSize.width() > availableWidth) {
1262             ratingSize.rwidth() = availableWidth;
1263         }
1264         const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
1265         m_rating = QPixmap(ratingSize.toSize() * dpr);
1266         m_rating.setDevicePixelRatio(dpr);
1267         m_rating.fill(Qt::transparent);
1268
1269         QPainter painter(&m_rating);
1270         const QRect rect(QPoint(0, 0), ratingSize.toSize());
1271         const int rating = data().value("rating").toInt();
1272         KRatingPainter::paintRating(&painter, rect, Qt::AlignJustify | Qt::AlignVCenter, rating);
1273     } else if (!m_rating.isNull()) {
1274         m_rating = QPixmap();
1275     }
1276 }
1277
1278 QString KStandardItemListWidget::escapeString(const QString &text) const
1279 {
1280     QString escaped(text);
1281
1282     const QChar returnSymbol(0x21b5);
1283     escaped.replace('\n', returnSymbol);
1284
1285     return escaped;
1286 }
1287
1288 void KStandardItemListWidget::updateIconsLayoutTextCache()
1289 {
1290     //      +------+
1291     //      | Icon |
1292     //      +------+
1293     //
1294     //    Name role that
1295     // might get wrapped above
1296     //    several lines.
1297     //  Additional role 1
1298     //  Additional role 2
1299
1300     const QHash<QByteArray, QVariant> values = data();
1301
1302     const KItemListStyleOption &option = styleOption();
1303     const qreal padding = option.padding;
1304     const qreal maxWidth = size().width() - 2 * padding;
1305     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
1306
1307     // Initialize properties for the "text" role. It will be used as anchor
1308     // for initializing the position of the other roles.
1309     TextInfo *nameTextInfo = m_textInfo.value("text");
1310     const QString nameText = KStringHandler::preProcessWrap(escapeString(values["text"].toString()));
1311     nameTextInfo->staticText.setText(nameText);
1312
1313     // Calculate the number of lines required for the name and the required width
1314     qreal nameWidth = 0;
1315     qreal nameHeight = 0;
1316     QTextLine line;
1317
1318     QTextLayout layout(nameTextInfo->staticText.text(), m_customizedFont);
1319     layout.setTextOption(nameTextInfo->staticText.textOption());
1320     layout.beginLayout();
1321     int nameLineIndex = 0;
1322     while ((line = layout.createLine()).isValid()) {
1323         line.setLineWidth(maxWidth);
1324         nameWidth = qMax(nameWidth, line.naturalTextWidth());
1325         nameHeight += line.height();
1326
1327         ++nameLineIndex;
1328         if (nameLineIndex == option.maxTextLines) {
1329             // The maximum number of textlines has been reached. If this is
1330             // the case provide an elided text if necessary.
1331             const int textLength = line.textStart() + line.textLength();
1332             if (textLength < nameText.length()) {
1333                 // Elide the last line of the text
1334                 qreal elidingWidth = maxWidth;
1335                 qreal lastLineWidth;
1336                 do {
1337                     QString lastTextLine = nameText.mid(line.textStart());
1338                     lastTextLine = m_customizedFontMetrics.elidedText(lastTextLine, Qt::ElideMiddle, elidingWidth);
1339                     const QString elidedText = nameText.left(line.textStart()) + lastTextLine;
1340                     nameTextInfo->staticText.setText(elidedText);
1341
1342                     lastLineWidth = m_customizedFontMetrics.horizontalAdvance(lastTextLine);
1343
1344                     // We do the text eliding in a loop with decreasing width (1 px / iteration)
1345                     // to avoid problems related to different width calculation code paths
1346                     // within Qt. (see bug 337104)
1347                     elidingWidth -= 1.0;
1348                 } while (lastLineWidth > maxWidth);
1349
1350                 nameWidth = qMax(nameWidth, lastLineWidth);
1351             }
1352             break;
1353         }
1354     }
1355     layout.endLayout();
1356
1357     // Use one line for each additional information
1358     nameTextInfo->staticText.setTextWidth(maxWidth);
1359     nameTextInfo->pos = QPointF(padding, iconSize() + 2 * padding);
1360     m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2, nameTextInfo->pos.y(), nameWidth, nameHeight);
1361
1362     // Calculate the position for each additional information
1363     qreal y = nameTextInfo->pos.y() + nameHeight;
1364     for (const QByteArray &role : std::as_const(m_sortedVisibleRoles)) {
1365         if (role == "text") {
1366             continue;
1367         }
1368
1369         const QString text = roleText(role, values);
1370         TextInfo *textInfo = m_textInfo.value(role);
1371         textInfo->staticText.setText(text);
1372
1373         qreal requiredWidth = 0;
1374
1375         QTextLayout layout(text, m_customizedFont);
1376         QTextOption textOption;
1377         textOption.setWrapMode(QTextOption::NoWrap);
1378         layout.setTextOption(textOption);
1379
1380         layout.beginLayout();
1381         QTextLine textLine = layout.createLine();
1382         if (textLine.isValid()) {
1383             textLine.setLineWidth(maxWidth);
1384             requiredWidth = textLine.naturalTextWidth();
1385             if (requiredWidth > maxWidth) {
1386                 const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideMiddle, maxWidth);
1387                 textInfo->staticText.setText(elidedText);
1388                 requiredWidth = m_customizedFontMetrics.horizontalAdvance(elidedText);
1389             } else if (role == "rating") {
1390                 // Use the width of the rating pixmap, because the rating text is empty.
1391                 requiredWidth = m_rating.width() / m_rating.devicePixelRatioF();
1392             }
1393         }
1394         layout.endLayout();
1395
1396         textInfo->pos = QPointF(padding, y);
1397         textInfo->staticText.setTextWidth(maxWidth);
1398
1399         const QRectF textRect(padding + (maxWidth - requiredWidth) / 2, y, requiredWidth, lineSpacing);
1400
1401         // Ignore empty roles. Avoids a text rect taller than the area that actually contains text.
1402         if (!textRect.isEmpty()) {
1403             m_textRect |= textRect;
1404         }
1405
1406         y += lineSpacing;
1407     }
1408
1409     // Add a padding to the text rectangle
1410     m_textRect.adjust(-padding, -padding, padding, padding);
1411 }
1412
1413 void KStandardItemListWidget::updateCompactLayoutTextCache()
1414 {
1415     // +------+  Name role
1416     // | Icon |  Additional role 1
1417     // +------+  Additional role 2
1418
1419     const QHash<QByteArray, QVariant> values = data();
1420
1421     const KItemListStyleOption &option = styleOption();
1422     const qreal widgetHeight = size().height();
1423     const qreal lineSpacing = m_customizedFontMetrics.lineSpacing();
1424     const qreal textLinesHeight = qMax(visibleRoles().count(), 1) * lineSpacing;
1425
1426     qreal maximumRequiredTextWidth = 0;
1427     const qreal x = QApplication::isRightToLeft() ? option.padding : option.padding * 3 + iconSize();
1428     qreal y = qRound((widgetHeight - textLinesHeight) / 2);
1429     const qreal maxWidth = size().width() - iconSize() - 4 * option.padding;
1430     for (const QByteArray &role : std::as_const(m_sortedVisibleRoles)) {
1431         const QString text = escapeString(roleText(role, values));
1432         TextInfo *textInfo = m_textInfo.value(role);
1433         textInfo->staticText.setText(text);
1434
1435         qreal requiredWidth = m_customizedFontMetrics.horizontalAdvance(text);
1436         if (requiredWidth > maxWidth) {
1437             requiredWidth = maxWidth;
1438             const QString elidedText = m_customizedFontMetrics.elidedText(text, Qt::ElideMiddle, maxWidth);
1439             textInfo->staticText.setText(elidedText);
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             text = m_customizedFontMetrics.elidedText(text, Qt::ElideMiddle, availableTextWidth);
1499             requiredWidth = m_customizedFontMetrics.horizontalAdvance(text);
1500         }
1501
1502         TextInfo *textInfo = m_textInfo.value(role);
1503         textInfo->staticText.setText(text);
1504         textInfo->pos = QPointF(isLeftToRight ? (x + columnWidthInc / 2) : (size().width() - (x + columnWidthInc / 2) - requiredWidth), y);
1505         x += roleWidth;
1506
1507         if (isTextRole) {
1508             m_textRect = QRectF(textInfo->pos.x() - option.padding, 0, requiredWidth + 2 * option.padding, size().height());
1509
1510             // The column after the name should always be aligned on the same x-position independent
1511             // from the expansion-level shown in the name column
1512             x -= firstColumnInc - (isLeftToRight ? leftPadding() : rightPadding());
1513         } else if (isRoleRightAligned(role) && isLeftToRight) {
1514             textInfo->pos.rx() += roleWidth - requiredWidth - columnWidthInc;
1515         }
1516     }
1517 }
1518
1519 void KStandardItemListWidget::updateAdditionalInfoTextColor()
1520 {
1521     QColor c1;
1522     const bool hasFocus = scene()->views()[0]->parentWidget()->hasFocus();
1523     if (m_customTextColor.isValid()) {
1524         c1 = m_customTextColor;
1525     } else if (isSelected() && hasFocus && (m_layout != DetailsLayout || m_highlightEntireRow)) {
1526         // The detail text color needs to match the main text (HighlightedText) for the same level
1527         // of readability. We short circuit early here to avoid interpolating with another color.
1528         m_additionalInfoTextColor = styleOption().palette.color(QPalette::HighlightedText);
1529         return;
1530     } else {
1531         c1 = styleOption().palette.text().color();
1532     }
1533
1534     // For the color of the additional info the inactive text color
1535     // is not used as this might lead to unreadable text for some color schemes. Instead
1536     // the text color c1 is slightly mixed with the background color.
1537     const QColor c2 = styleOption().palette.base().color();
1538     const int p1 = 70;
1539     const int p2 = 100 - p1;
1540     m_additionalInfoTextColor =
1541         QColor((c1.red() * p1 + c2.red() * p2) / 100, (c1.green() * p1 + c2.green() * p2) / 100, (c1.blue() * p1 + c2.blue() * p2) / 100);
1542 }
1543
1544 QPixmap
1545 KStandardItemListWidget::addOverlays(const QPixmap &pixmap, const QHash<Qt::Corner, QString> &overlays, const QSize &size, qreal dpr, QIcon::Mode mode) const
1546 {
1547     // similar to KIconUtils::addOverlays, keep in sync preferrably
1548     if (overlays.isEmpty()) {
1549         return pixmap;
1550     }
1551
1552     int width = size.width();
1553     int height = size.height();
1554     const int iconSize = qMin(width, height);
1555
1556     // Determine the overlay icon
1557     int overlaySize;
1558     if (iconSize < 32) {
1559         overlaySize = 8;
1560     } else if (iconSize <= 48) {
1561         overlaySize = 16;
1562     } else if (iconSize <= 96) {
1563         overlaySize = 22;
1564     } else if (iconSize < 256) {
1565         overlaySize = 32;
1566     } else {
1567         overlaySize = 64;
1568     }
1569
1570     auto phyiscalSize = QSize(std::clamp(pixmap.width(), qFloor(2 * overlaySize * dpr), qFloor(size.width() * dpr)),
1571                               std::clamp(pixmap.height(), qFloor(2 * overlaySize * dpr), qFloor(size.height() * dpr)));
1572
1573     QPixmap output(phyiscalSize);
1574     output.setDevicePixelRatio(dpr);
1575     output.fill(Qt::transparent);
1576
1577     QPainter painter(&output);
1578     painter.drawPixmap(qFloor(phyiscalSize.width() / dpr / 2) - qFloor(pixmap.width() / pixmap.devicePixelRatio() / 2),
1579                        // align the icon to the bottom to match the behavior elsewhere
1580                        qFloor(phyiscalSize.height() / dpr) - qFloor(pixmap.height() / pixmap.devicePixelRatio()),
1581                        pixmap);
1582
1583     width = qCeil(phyiscalSize.width() / dpr);
1584     height = qCeil(phyiscalSize.height() / dpr);
1585
1586     // Iterate over stored overlays
1587     for (const auto &[corner, overlay] : overlays.asKeyValueRange()) {
1588         const QPixmap overlayPixmap = QIcon::fromTheme(overlay).pixmap(QSize{overlaySize, overlaySize}, dpr, mode);
1589         if (overlayPixmap.isNull()) {
1590             continue;
1591         }
1592
1593         QPoint startPoint;
1594         switch (corner) {
1595         case Qt::BottomLeftCorner:
1596             startPoint = QPoint{0, height - overlaySize};
1597             break;
1598         case Qt::BottomRightCorner:
1599             startPoint = QPoint{width - overlaySize, height - overlaySize};
1600             break;
1601         case Qt::TopRightCorner:
1602             startPoint = QPoint{width - overlaySize, 0};
1603             break;
1604         case Qt::TopLeftCorner:
1605             startPoint = QPoint{};
1606             break;
1607         }
1608         painter.drawPixmap(startPoint, overlayPixmap);
1609     }
1610
1611     return output;
1612 }
1613
1614 void KStandardItemListWidget::drawPixmap(QPainter *painter, const QPixmap &pixmap)
1615 {
1616     if (m_scaledPixmapSize != pixmap.size() / pixmap.devicePixelRatio()) {
1617         const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
1618         QPixmap scaledPixmap = pixmap;
1619         KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize * dpr);
1620         scaledPixmap.setDevicePixelRatio(dpr);
1621         painter->drawPixmap(m_pixmapPos, scaledPixmap);
1622
1623 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
1624         painter->setPen(Qt::blue);
1625         painter->drawRect(QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize)));
1626 #endif
1627     } else {
1628         painter->drawPixmap(m_pixmapPos, pixmap);
1629     }
1630 }
1631
1632 void KStandardItemListWidget::drawSiblingsInformation(QPainter *painter)
1633 {
1634     const int siblingSize = size().height();
1635     const int x = (m_expansionArea.left() + m_expansionArea.right() - siblingSize) / 2;
1636     QRect siblingRect(x, 0, siblingSize, siblingSize);
1637
1638     bool isItemSibling = true;
1639
1640     const QBitArray siblings = siblingsInformation();
1641     QStyleOption option;
1642     const auto normalColor = option.palette.color(normalTextColorRole());
1643     const auto highlightColor = option.palette.color(expansionAreaHovered() ? QPalette::Highlight : normalTextColorRole());
1644     for (int i = siblings.count() - 1; i >= 0; --i) {
1645         option.rect = siblingRect;
1646         option.state = siblings.at(i) ? QStyle::State_Sibling : QStyle::State_None;
1647         if (isItemSibling) {
1648             option.state |= QStyle::State_Item;
1649             if (m_isExpandable) {
1650                 option.state |= QStyle::State_Children;
1651             }
1652             if (data().value("isExpanded").toBool()) {
1653                 option.state |= QStyle::State_Open;
1654             }
1655             option.palette.setColor(QPalette::Text, highlightColor);
1656             isItemSibling = false;
1657         } else {
1658             option.palette.setColor(QPalette::Text, normalColor);
1659         }
1660
1661         style()->drawPrimitive(QStyle::PE_IndicatorBranch, &option, painter);
1662
1663         siblingRect.translate(layoutDirection() == Qt::LeftToRight ? -siblingRect.width() : siblingRect.width(), 0);
1664     }
1665 }
1666
1667 QRectF KStandardItemListWidget::roleEditingRect(const QByteArray &role) const
1668 {
1669     const TextInfo *textInfo = m_textInfo.value(role);
1670     if (!textInfo) {
1671         return QRectF();
1672     }
1673
1674     QRectF rect(textInfo->pos, textInfo->staticText.size());
1675     if (m_layout == DetailsLayout) {
1676         rect.setWidth(columnWidth(role) - rect.x());
1677     }
1678
1679     return rect;
1680 }
1681
1682 void KStandardItemListWidget::closeRoleEditor()
1683 {
1684     disconnect(m_roleEditor, &KItemListRoleEditor::roleEditingCanceled, this, &KStandardItemListWidget::slotRoleEditingCanceled);
1685     disconnect(m_roleEditor, &KItemListRoleEditor::roleEditingFinished, this, &KStandardItemListWidget::slotRoleEditingFinished);
1686
1687     if (m_roleEditor->hasFocus()) {
1688         // If the editing was not ended by a FocusOut event, we have
1689         // to transfer the keyboard focus back to the KItemListContainer.
1690         scene()->views()[0]->parentWidget()->setFocus();
1691     }
1692
1693     if (m_oldRoleEditor) {
1694         m_oldRoleEditor->deleteLater();
1695     }
1696     m_oldRoleEditor = m_roleEditor;
1697     m_roleEditor->hide();
1698     m_roleEditor = nullptr;
1699 }
1700
1701 QPixmap KStandardItemListWidget::pixmapForIcon(const QString &name, const QHash<Qt::Corner, QString> &overlays, const QSize &size, QIcon::Mode mode) const
1702 {
1703     static const QIcon fallbackIcon = QIcon::fromTheme(QStringLiteral("unknown"));
1704     const qreal dpr = KItemViewsUtils::devicePixelRatio(this);
1705
1706     int iconHeight = size.height();
1707     QSize iconSize = QSize(iconHeight, iconHeight);
1708
1709     const QString key = "KStandardItemListWidget:" % name % ":" % overlays.values().join(QLatin1Char(':')) % ":" % QString::number(iconHeight) % "@"
1710         % QString::number(dpr) % ":" % QString::number(mode);
1711     QPixmap pixmap;
1712
1713     if (!QPixmapCache::find(key, &pixmap)) {
1714         QIcon icon = QIcon::fromTheme(name);
1715         if (icon.isNull()) {
1716             icon = QIcon(name);
1717         }
1718         if (!icon.isNull()) {
1719             pixmap = icon.pixmap(iconSize, dpr, mode);
1720         }
1721         if (pixmap.isNull()) {
1722             icon = fallbackIcon;
1723             pixmap = icon.pixmap(iconSize, dpr, mode);
1724         }
1725         if (pixmap.width() != iconHeight * dpr || pixmap.height() != iconHeight * dpr) {
1726             KPixmapModifier::scale(pixmap, iconSize * dpr);
1727         }
1728
1729         pixmap = addOverlays(pixmap, overlays, size, dpr, mode);
1730
1731         QPixmapCache::insert(key, pixmap);
1732     }
1733     pixmap.setDevicePixelRatio(dpr);
1734
1735     return pixmap;
1736 }
1737
1738 QSizeF KStandardItemListWidget::preferredRatingSize(const KItemListStyleOption &option)
1739 {
1740     const qreal height = option.fontMetrics.ascent();
1741     return QSizeF(height * 5, height);
1742 }
1743
1744 qreal KStandardItemListWidget::columnPadding(const KItemListStyleOption &option)
1745 {
1746     return option.padding * 6;
1747 }
1748
1749 #include "moc_kstandarditemlistwidget.cpp"