src/kitemviews/kstandarditemlistwidget.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2012 by Peter Penz <peter.penz19@gmail.com>             *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "kstandarditemlistwidget.h"
  21
  22 #include "kfileitemlistview.h"
  23 #include "kfileitemmodel.h"
  24
  25 #include <KIcon>
  26 #include <KIconEffect>
  27 #include <KIconLoader>
  28 #include <KLocale>
  29 #include <kratingpainter.h>
  30 #include <KStringHandler>
  31 #include <KDebug>
  32
  33 #include "private/kfileitemclipboard.h"
  34 #include "private/kitemlistroleeditor.h"
  35 #include "private/kpixmapmodifier.h"
  36
  37 #include <QFontMetricsF>
  38 #include <QGraphicsScene>
  39 #include <QGraphicsSceneResizeEvent>
  40 #include <QGraphicsView>
  41 #include <QPainter>
  42 #include <QStyleOption>
  43 #include <QTextLayout>
  44 #include <QTextLine>
  45
  46 // #define KSTANDARDITEMLISTWIDGET_DEBUG
  47
  48 KStandardItemListWidgetInformant::KStandardItemListWidgetInformant() :
  49     KItemListWidgetInformant()
  50 {
  51 }
  52
  53 KStandardItemListWidgetInformant::~KStandardItemListWidgetInformant()
  54 {
  55 }
  56
  57 QSizeF KStandardItemListWidgetInformant::itemSizeHint(int index, const KItemListView* view) const
  58 {
  59     const QHash<QByteArray, QVariant> values = view->model()->data(index);
  60     const KItemListStyleOption& option = view->styleOption();
  61     const int additionalRolesCount = qMax(view->visibleRoles().count() - 1, 0);
  62
  63     switch (static_cast<const KStandardItemListView*>(view)->itemLayout()) {
  64     case KStandardItemListWidget::IconsLayout: {
  65         const QString text = KStringHandler::preProcessWrap(values["text"].toString());
  66
  67         const qreal itemWidth = view->itemSize().width();
  68         const qreal maxWidth = itemWidth - 2 * option.padding;
  69         QTextLine line;
  70
  71         // Calculate the number of lines required for wrapping the name
  72         QTextOption textOption(Qt::AlignHCenter);
  73         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
  74
  75         qreal textHeight = 0;
  76         QTextLayout layout(text, option.font);
  77         layout.setTextOption(textOption);
  78         layout.beginLayout();
  79         while ((line = layout.createLine()).isValid()) {
  80             line.setLineWidth(maxWidth);
  81             line.naturalTextWidth();
  82             textHeight += line.height();
  83         }
  84         layout.endLayout();
  85
  86         // Add one line for each additional information
  87         textHeight += additionalRolesCount * option.fontMetrics.lineSpacing();
  88
  89         const qreal maxTextHeight = option.maxTextSize.height();
  90         if (maxTextHeight > 0 && textHeight > maxTextHeight) {
  91             textHeight = maxTextHeight;
  92         }
  93
  94         return QSizeF(itemWidth, textHeight + option.iconSize + option.padding * 3);
  95     }
  96
  97     case KStandardItemListWidget::CompactLayout: {
  98         // For each row exactly one role is shown. Calculate the maximum required width that is necessary
  99         // to show all roles without horizontal clipping.
 100         qreal maximumRequiredWidth = 0.0;
 101
 102         foreach (const QByteArray& role, view->visibleRoles()) {
 103             const QString text = roleText(role, values);
 104             const qreal requiredWidth = option.fontMetrics.width(text);
 105             maximumRequiredWidth = qMax(maximumRequiredWidth, requiredWidth);
 106         }
 107
 108         qreal width = option.padding * 4 + option.iconSize + maximumRequiredWidth;
 109         const qreal maxWidth = option.maxTextSize.width();
 110         if (maxWidth > 0 && width > maxWidth) {
 111             width = maxWidth;
 112         }
 113         const qreal height = option.padding * 2 + qMax(option.iconSize, (1 + additionalRolesCount) * option.fontMetrics.lineSpacing());
 114         return QSizeF(width, height);
 115     }
 116
 117     case KStandardItemListWidget::DetailsLayout: {
 118         const qreal height = option.padding * 2 + qMax(option.iconSize, option.fontMetrics.height());
 119         return QSizeF(-1, height);
 120     }
 121
 122     default:
 123         Q_ASSERT(false);
 124         break;
 125     }
 126
 127     return QSize();
 128 }
 129
 130 qreal KStandardItemListWidgetInformant::preferredRoleColumnWidth(const QByteArray& role,
 131                                                                  int index,
 132                                                                  const KItemListView* view) const
 133 {
 134     const QHash<QByteArray, QVariant> values = view->model()->data(index);
 135     const KItemListStyleOption& option = view->styleOption();
 136
 137     const QString text = roleText(role, values);
 138     qreal width = KStandardItemListWidget::columnPadding(option);
 139
 140     if (role == "rating") {
 141         width += KStandardItemListWidget::preferredRatingSize(option).width();
 142     } else {
 143         width += option.fontMetrics.width(text);
 144
 145         if (role == "text") {
 146             if (view->supportsItemExpanding()) {
 147                 // Increase the width by the expansion-toggle and the current expansion level
 148                 const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
 149                 const qreal height = option.padding * 2 + qMax(option.iconSize, option.fontMetrics.height());
 150                 width += (expandedParentsCount + 1) * height;
 151             }
 152
 153             // Increase the width by the required space for the icon
 154             width += option.padding * 2 + option.iconSize;
 155         }
 156     }
 157
 158     return width;
 159 }
 160
 161 QString KStandardItemListWidgetInformant::roleText(const QByteArray& role,
 162                                                    const QHash<QByteArray, QVariant>& values) const
 163 {
 164     if (role == "rating") {
 165         // Always use an empty text, as the rating is shown by the image m_rating.
 166         return QString();
 167     }
 168     return values.value(role).toString();
 169 }
 170
 171 KStandardItemListWidget::KStandardItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
 172     KItemListWidget(informant, parent),
 173     m_isCut(false),
 174     m_isHidden(false),
 175     m_isExpandable(false),
 176     m_supportsItemExpanding(false),
 177     m_dirtyLayout(true),
 178     m_dirtyContent(true),
 179     m_dirtyContentRoles(),
 180     m_layout(IconsLayout),
 181     m_pixmapPos(),
 182     m_pixmap(),
 183     m_scaledPixmapSize(),
 184     m_iconRect(),
 185     m_hoverPixmap(),
 186     m_textInfo(),
 187     m_textRect(),
 188     m_sortedVisibleRoles(),
 189     m_expansionArea(),
 190     m_customTextColor(),
 191     m_additionalInfoTextColor(),
 192     m_overlay(),
 193     m_rating(),
 194     m_roleEditor(0)
 195 {
 196 }
 197
 198 KStandardItemListWidget::~KStandardItemListWidget()
 199 {
 200     qDeleteAll(m_textInfo);
 201     m_textInfo.clear();
 202
 203     delete m_roleEditor;
 204 }
 205
 206 void KStandardItemListWidget::setLayout(Layout layout)
 207 {
 208     if (m_layout != layout) {
 209         m_layout = layout;
 210         m_dirtyLayout = true;
 211         updateAdditionalInfoTextColor();
 212         update();
 213     }
 214 }
 215
 216 KStandardItemListWidget::Layout KStandardItemListWidget::layout() const
 217 {
 218     return m_layout;
 219 }
 220
 221 void KStandardItemListWidget::setSupportsItemExpanding(bool supportsItemExpanding)
 222 {
 223     if (m_supportsItemExpanding != supportsItemExpanding) {
 224         m_supportsItemExpanding = supportsItemExpanding;
 225         m_dirtyLayout = true;
 226         update();
 227     }
 228 }
 229
 230 bool KStandardItemListWidget::supportsItemExpanding() const
 231 {
 232     return m_supportsItemExpanding;
 233 }
 234
 235 void KStandardItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
 236 {
 237     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 238
 239     KItemListWidget::paint(painter, option, widget);
 240
 241     if (!m_expansionArea.isEmpty()) {
 242         drawSiblingsInformation(painter);
 243     }
 244
 245     const KItemListStyleOption& itemListStyleOption = styleOption();
 246     if (isHovered()) {
 247         // Blend the unhovered and hovered pixmap if the hovering
 248         // animation is ongoing
 249         if (hoverOpacity() < 1.0) {
 250             drawPixmap(painter, m_pixmap);
 251         }
 252
 253         const qreal opacity = painter->opacity();
 254         painter->setOpacity(hoverOpacity() * opacity);
 255         drawPixmap(painter, m_hoverPixmap);
 256         painter->setOpacity(opacity);
 257     } else {
 258         drawPixmap(painter, m_pixmap);
 259     }
 260
 261     painter->setFont(itemListStyleOption.font);
 262     painter->setPen(textColor());
 263     const TextInfo* textInfo = m_textInfo.value("text");
 264     painter->drawStaticText(textInfo->pos, textInfo->staticText);
 265
 266     bool clipAdditionalInfoBounds = false;
 267     if (m_supportsItemExpanding) {
 268         // Prevent a possible overlapping of the additional-information texts
 269         // with the icon. This can happen if the user has minimized the width
 270         // of the name-column to a very small value.
 271         const qreal minX = m_pixmapPos.x() + m_pixmap.width() + 4 * itemListStyleOption.padding;
 272         if (textInfo->pos.x() + columnWidth("text") > minX) {
 273             clipAdditionalInfoBounds = true;
 274             painter->save();
 275             painter->setClipRect(minX, 0, size().width() - minX, size().height(), Qt::IntersectClip);
 276         }
 277     }
 278
 279     painter->setPen(m_additionalInfoTextColor);
 280     painter->setFont(itemListStyleOption.font);
 281
 282     for (int i = 1; i < m_sortedVisibleRoles.count(); ++i) {
 283         const TextInfo* textInfo = m_textInfo.value(m_sortedVisibleRoles[i]);
 284         painter->drawStaticText(textInfo->pos, textInfo->staticText);
 285     }
 286
 287     if (!m_rating.isNull()) {
 288         const TextInfo* ratingTextInfo = m_textInfo.value("rating");
 289         QPointF pos = ratingTextInfo->pos;
 290         const Qt::Alignment align = ratingTextInfo->staticText.textOption().alignment();
 291         if (align & Qt::AlignHCenter) {
 292             pos.rx() += (size().width() - m_rating.width()) / 2;
 293         }
 294         painter->drawPixmap(pos, m_rating);
 295     }
 296
 297     if (clipAdditionalInfoBounds) {
 298         painter->restore();
 299     }
 300
 301 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
 302     painter->setBrush(Qt::NoBrush);
 303     painter->setPen(Qt::green);
 304     painter->drawRect(m_iconRect);
 305
 306     painter->setPen(Qt::red);
 307     painter->drawText(QPointF(0, itemListStyleOption.fontMetrics.height()), QString::number(index()));
 308     painter->drawRect(rect());
 309 #endif
 310 }
 311
 312 QRectF KStandardItemListWidget::iconRect() const
 313 {
 314     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 315     return m_iconRect;
 316 }
 317
 318 QRectF KStandardItemListWidget::textRect() const
 319 {
 320     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 321     return m_textRect;
 322 }
 323
 324 QRectF KStandardItemListWidget::textFocusRect() const
 325 {
 326     // In the compact- and details-layout a larger textRect() is returned to be aligned
 327     // with the iconRect(). This is useful to have a larger selection/hover-area
 328     // when having a quite large icon size but only one line of text. Still the
 329     // focus rectangle should be shown as narrow as possible around the text.
 330
 331     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 332
 333     switch (m_layout) {
 334     case CompactLayout: {
 335         QRectF rect = m_textRect;
 336         const TextInfo* topText    = m_textInfo.value(m_sortedVisibleRoles.first());
 337         const TextInfo* bottomText = m_textInfo.value(m_sortedVisibleRoles.last());
 338         rect.setTop(topText->pos.y());
 339         rect.setBottom(bottomText->pos.y() + bottomText->staticText.size().height());
 340         return rect;
 341     }
 342
 343     case DetailsLayout: {
 344         QRectF rect = m_textRect;
 345         const TextInfo* textInfo = m_textInfo.value(m_sortedVisibleRoles.first());
 346         rect.setTop(textInfo->pos.y());
 347         rect.setBottom(textInfo->pos.y() + textInfo->staticText.size().height());
 348
 349         const KItemListStyleOption& option = styleOption();
 350         if (option.extendedSelectionRegion) {
 351             const QString text = textInfo->staticText.text();
 352             rect.setWidth(option.fontMetrics.width(text) + 2 * option.padding);
 353         }
 354
 355         return rect;
 356     }
 357
 358     default:
 359         break;
 360     }
 361
 362     return m_textRect;
 363 }
 364
 365 QRectF KStandardItemListWidget::expansionToggleRect() const
 366 {
 367     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 368     return m_isExpandable ? m_expansionArea : QRectF();
 369 }
 370
 371 QRectF KStandardItemListWidget::selectionToggleRect() const
 372 {
 373     const_cast<KStandardItemListWidget*>(this)->triggerCacheRefreshing();
 374
 375     const int iconHeight = styleOption().iconSize;
 376
 377     int toggleSize = KIconLoader::SizeSmall;
 378     if (iconHeight >= KIconLoader::SizeEnormous) {
 379         toggleSize = KIconLoader::SizeMedium;
 380     } else if (iconHeight >= KIconLoader::SizeLarge) {
 381         toggleSize = KIconLoader::SizeSmallMedium;
 382     }
 383
 384     QPointF pos = iconRect().topLeft();
 385
 386     // If the selection toggle has a very small distance to the
 387     // widget borders, the size of the selection toggle will get
 388     // increased to prevent an accidental clicking of the item
 389     // when trying to hit the toggle.
 390     const int widgetHeight = size().height();
 391     const int widgetWidth = size().width();
 392     const int minMargin = 2;
 393
 394     if (toggleSize + minMargin * 2 >= widgetHeight) {
 395         pos.rx() -= (widgetHeight - toggleSize) / 2;
 396         toggleSize = widgetHeight;
 397         pos.setY(0);
 398     }
 399     if (toggleSize + minMargin * 2 >= widgetWidth) {
 400         pos.ry() -= (widgetWidth - toggleSize) / 2;
 401         toggleSize = widgetWidth;
 402         pos.setX(0);
 403     }
 404
 405     return QRectF(pos, QSizeF(toggleSize, toggleSize));
 406 }
 407
 408 KItemListWidgetInformant* KStandardItemListWidget::createInformant()
 409 {
 410     return new KStandardItemListWidgetInformant();
 411 }
 412
 413 void KStandardItemListWidget::invalidateCache()
 414 {
 415     m_dirtyLayout = true;
 416     m_dirtyContent = true;
 417 }
 418
 419 void KStandardItemListWidget::refreshCache()
 420 {
 421 }
 422
 423 bool KStandardItemListWidget::isRoleRightAligned(const QByteArray& role) const
 424 {
 425     Q_UNUSED(role);
 426     return false;
 427 }
 428
 429 void KStandardItemListWidget::setTextColor(const QColor& color)
 430 {
 431     if (color != m_customTextColor) {
 432         m_customTextColor = color;
 433         updateAdditionalInfoTextColor();
 434         update();
 435     }
 436 }
 437
 438 QColor KStandardItemListWidget::textColor() const
 439 {
 440     if (m_customTextColor.isValid() && !isSelected()) {
 441         return m_customTextColor;
 442     }
 443
 444     const QPalette::ColorGroup group = isActiveWindow() ? QPalette::Active : QPalette::Inactive;
 445     const QPalette::ColorRole role = isSelected() ? QPalette::HighlightedText : QPalette::Text;
 446     return styleOption().palette.brush(group, role).color();
 447 }
 448
 449 void KStandardItemListWidget::setOverlay(const QPixmap& overlay)
 450 {
 451     m_overlay = overlay;
 452     m_dirtyContent = true;
 453     update();
 454 }
 455
 456 QPixmap KStandardItemListWidget::overlay() const
 457 {
 458     return m_overlay;
 459 }
 460
 461
 462 QString KStandardItemListWidget::roleText(const QByteArray& role,
 463                                           const QHash<QByteArray, QVariant>& values) const
 464 {
 465     return static_cast<const KStandardItemListWidgetInformant*>(informant())->roleText(role, values);
 466 }
 467
 468 void KStandardItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& current,
 469                                           const QSet<QByteArray>& roles)
 470 {
 471     Q_UNUSED(current);
 472
 473     m_dirtyContent = true;
 474
 475     QSet<QByteArray> dirtyRoles;
 476     if (roles.isEmpty()) {
 477         dirtyRoles = visibleRoles().toSet();
 478         dirtyRoles.insert("iconPixmap");
 479         dirtyRoles.insert("iconName");
 480     } else {
 481         dirtyRoles = roles;
 482     }
 483
 484     QSetIterator<QByteArray> it(dirtyRoles);
 485     while (it.hasNext()) {
 486         const QByteArray& role = it.next();
 487         m_dirtyContentRoles.insert(role);
 488     }
 489 }
 490
 491 void KStandardItemListWidget::visibleRolesChanged(const QList<QByteArray>& current,
 492                                               const QList<QByteArray>& previous)
 493 {
 494     Q_UNUSED(previous);
 495     m_sortedVisibleRoles = current;
 496     m_dirtyLayout = true;
 497 }
 498
 499 void KStandardItemListWidget::columnWidthChanged(const QByteArray& role,
 500                                              qreal current,
 501                                              qreal previous)
 502 {
 503     Q_UNUSED(role);
 504     Q_UNUSED(current);
 505     Q_UNUSED(previous);
 506     m_dirtyLayout = true;
 507 }
 508
 509 void KStandardItemListWidget::styleOptionChanged(const KItemListStyleOption& current,
 510                                              const KItemListStyleOption& previous)
 511 {
 512     Q_UNUSED(current);
 513     Q_UNUSED(previous);
 514     updateAdditionalInfoTextColor();
 515     m_dirtyLayout = true;
 516 }
 517
 518 void KStandardItemListWidget::hoveredChanged(bool hovered)
 519 {
 520     Q_UNUSED(hovered);
 521     m_dirtyLayout = true;
 522 }
 523
 524 void KStandardItemListWidget::selectedChanged(bool selected)
 525 {
 526     Q_UNUSED(selected);
 527     updateAdditionalInfoTextColor();
 528 }
 529
 530 void KStandardItemListWidget::siblingsInformationChanged(const QBitArray& current, const QBitArray& previous)
 531 {
 532     Q_UNUSED(current);
 533     Q_UNUSED(previous);
 534     m_dirtyLayout = true;
 535 }
 536
 537 void KStandardItemListWidget::editedRoleChanged(const QByteArray& current, const QByteArray& previous)
 538 {
 539     Q_UNUSED(previous);
 540
 541    QGraphicsView* parent = scene()->views()[0];
 542    if (current.isEmpty() || !parent || current != "text") {
 543         if (m_roleEditor) {
 544             emit roleEditingCanceled(index(), current, data().value(current));
 545             m_roleEditor->deleteLater();
 546             m_roleEditor = 0;
 547         }
 548         return;
 549     }
 550
 551     Q_ASSERT(!m_roleEditor);
 552
 553     const TextInfo* textInfo = m_textInfo.value("text");
 554
 555     m_roleEditor = new KItemListRoleEditor(parent);
 556     m_roleEditor->setIndex(index());
 557     m_roleEditor->setRole(current);
 558
 559     const QString text = data().value(current).toString();
 560     m_roleEditor->setPlainText(text);
 561
 562     QTextOption textOption = textInfo->staticText.textOption();
 563     m_roleEditor->document()->setDefaultTextOption(textOption);
 564
 565     // Select the text without MIME-type extension
 566     int selectionLength = text.length();
 567
 568     const QString extension = KMimeType::extractKnownExtension(text);
 569     if (!extension.isEmpty()) {
 570         selectionLength -= extension.length() + 1;
 571     }
 572
 573     if (selectionLength > 0) {
 574         QTextCursor cursor = m_roleEditor->textCursor();
 575         cursor.movePosition(QTextCursor::StartOfBlock);
 576         cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, selectionLength);
 577         m_roleEditor->setTextCursor(cursor);
 578     }
 579
 580     connect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
 581             this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
 582     connect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 583             this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 584
 585     // Adjust the geometry of the editor
 586     QRectF rect = roleEditingRect(current);
 587     const int frameWidth = m_roleEditor->frameWidth();
 588     rect.adjust(-frameWidth, -frameWidth, frameWidth, frameWidth);
 589     rect.translate(pos());
 590     if (rect.right() > parent->width()) {
 591         rect.setWidth(parent->width() - rect.left());
 592     }
 593     m_roleEditor->setGeometry(rect.toRect());
 594     m_roleEditor->show();
 595     m_roleEditor->setFocus();
 596 }
 597
 598 void KStandardItemListWidget::resizeEvent(QGraphicsSceneResizeEvent* event)
 599 {
 600     if (m_roleEditor) {
 601         setEditedRole(QByteArray());
 602         Q_ASSERT(!m_roleEditor);
 603     }
 604
 605     KItemListWidget::resizeEvent(event);
 606
 607     m_dirtyLayout = true;
 608 }
 609
 610 void KStandardItemListWidget::showEvent(QShowEvent* event)
 611 {
 612     KItemListWidget::showEvent(event);
 613
 614     // Listen to changes of the clipboard to mark the item as cut/uncut
 615     KFileItemClipboard* clipboard = KFileItemClipboard::instance();
 616
 617     const KUrl itemUrl = data().value("url").value<KUrl>();
 618     m_isCut = clipboard->isCut(itemUrl);
 619
 620     connect(clipboard, SIGNAL(cutItemsChanged()),
 621             this, SLOT(slotCutItemsChanged()));
 622 }
 623
 624 void KStandardItemListWidget::hideEvent(QHideEvent* event)
 625 {
 626     disconnect(KFileItemClipboard::instance(), SIGNAL(cutItemsChanged()),
 627                this, SLOT(slotCutItemsChanged()));
 628
 629     KItemListWidget::hideEvent(event);
 630 }
 631
 632 void KStandardItemListWidget::slotCutItemsChanged()
 633 {
 634     const KUrl itemUrl = data().value("url").value<KUrl>();
 635     const bool isCut = KFileItemClipboard::instance()->isCut(itemUrl);
 636     if (m_isCut != isCut) {
 637         m_isCut = isCut;
 638         m_pixmap = QPixmap();
 639         m_dirtyContent = true;
 640         update();
 641     }
 642 }
 643
 644 void KStandardItemListWidget::slotRoleEditingCanceled(int index,
 645                                                   const QByteArray& role,
 646                                                   const QVariant& value)
 647 {
 648     m_roleEditor->deleteLater();
 649     m_roleEditor = 0;
 650     emit roleEditingCanceled(index, role, value);
 651     setEditedRole(QByteArray());
 652 }
 653
 654 void KStandardItemListWidget::slotRoleEditingFinished(int index,
 655                                                   const QByteArray& role,
 656                                                   const QVariant& value)
 657 {
 658     m_roleEditor->deleteLater();
 659     m_roleEditor = 0;
 660     emit roleEditingFinished(index, role, value);
 661     setEditedRole(QByteArray());
 662 }
 663
 664 void KStandardItemListWidget::triggerCacheRefreshing()
 665 {
 666     if ((!m_dirtyContent && !m_dirtyLayout) || index() < 0) {
 667         return;
 668     }
 669
 670     refreshCache();
 671
 672     const QHash<QByteArray, QVariant> values = data();
 673     m_isExpandable = m_supportsItemExpanding && values["isExpandable"].toBool();
 674     m_isHidden = values["text"].toString().startsWith(QLatin1Char('.'));
 675
 676     updateExpansionArea();
 677     updateTextsCache();
 678     updatePixmapCache();
 679
 680     m_dirtyLayout = false;
 681     m_dirtyContent = false;
 682     m_dirtyContentRoles.clear();
 683 }
 684
 685 void KStandardItemListWidget::updateExpansionArea()
 686 {
 687     if (m_supportsItemExpanding) {
 688         const QHash<QByteArray, QVariant> values = data();
 689         Q_ASSERT(values.contains("expandedParentsCount"));
 690         const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
 691         if (expandedParentsCount >= 0) {
 692             const qreal widgetHeight = size().height();
 693             const qreal inc = (widgetHeight - KIconLoader::SizeSmall) / 2;
 694             const qreal x = expandedParentsCount * widgetHeight + inc;
 695             const qreal y = inc;
 696             m_expansionArea = QRectF(x, y, KIconLoader::SizeSmall, KIconLoader::SizeSmall);
 697             return;
 698         }
 699     }
 700
 701     m_expansionArea = QRectF();
 702 }
 703
 704 void KStandardItemListWidget::updatePixmapCache()
 705 {
 706     // Precondition: Requires already updated m_textPos values to calculate
 707     // the remaining height when the alignment is vertical.
 708
 709     const QSizeF widgetSize = size();
 710     const bool iconOnTop = (m_layout == IconsLayout);
 711     const KItemListStyleOption& option = styleOption();
 712     const qreal padding = option.padding;
 713
 714     const int maxIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : option.iconSize;
 715     const int maxIconHeight = option.iconSize;
 716
 717     const QHash<QByteArray, QVariant> values = data();
 718
 719     bool updatePixmap = (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight);
 720     if (!updatePixmap && m_dirtyContent) {
 721         updatePixmap = m_dirtyContentRoles.isEmpty()
 722                        || m_dirtyContentRoles.contains("iconPixmap")
 723                        || m_dirtyContentRoles.contains("iconName")
 724                        || m_dirtyContentRoles.contains("iconOverlays");
 725     }
 726
 727     if (updatePixmap) {
 728         m_pixmap = values["iconPixmap"].value<QPixmap>();
 729         if (m_pixmap.isNull()) {
 730             // Use the icon that fits to the MIME-type
 731             QString iconName = values["iconName"].toString();
 732             if (iconName.isEmpty()) {
 733                 // The icon-name has not been not resolved by KFileItemModelRolesUpdater,
 734                 // use a generic icon as fallback
 735                 iconName = QLatin1String("unknown");
 736             }
 737             m_pixmap = pixmapForIcon(iconName, maxIconHeight);
 738         } else if (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight) {
 739             // A custom pixmap has been applied. Assure that the pixmap
 740             // is scaled to the maximum available size.
 741             KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight));
 742         }
 743
 744         const QStringList overlays = values["iconOverlays"].toStringList();
 745
 746         // Strangely KFileItem::overlays() returns empty string-values, so
 747         // we need to check first whether an overlay must be drawn at all.
 748         // It is more efficient to do it here, as KIconLoader::drawOverlays()
 749         // assumes that an overlay will be drawn and has some additional
 750         // setup time.
 751         foreach (const QString& overlay, overlays) {
 752             if (!overlay.isEmpty()) {
 753                 // There is at least one overlay, draw all overlays above m_pixmap
 754                 // and cancel the check
 755                 KIconLoader::global()->drawOverlays(overlays, m_pixmap, KIconLoader::Desktop);
 756                 break;
 757             }
 758         }
 759
 760         if (m_isCut) {
 761             applyCutEffect(m_pixmap);
 762         }
 763
 764         if (m_isHidden) {
 765             applyHiddenEffect(m_pixmap);
 766         }
 767     }
 768
 769     if (!m_overlay.isNull()) {
 770         QPainter painter(&m_pixmap);
 771         painter.drawPixmap(0, m_pixmap.height() - m_overlay.height(), m_overlay);
 772     }
 773
 774     int scaledIconSize = 0;
 775     if (iconOnTop) {
 776         const TextInfo* textInfo = m_textInfo.value("text");
 777         scaledIconSize = static_cast<int>(textInfo->pos.y() - 2 * padding);
 778     } else {
 779         const int textRowsCount = (m_layout == CompactLayout) ? visibleRoles().count() : 1;
 780         const qreal requiredTextHeight = textRowsCount * option.fontMetrics.height();
 781         scaledIconSize = (requiredTextHeight < maxIconHeight) ?
 782                            widgetSize.height() - 2 * padding : maxIconHeight;
 783     }
 784
 785     const int maxScaledIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : scaledIconSize;
 786     const int maxScaledIconHeight = scaledIconSize;
 787
 788     m_scaledPixmapSize = m_pixmap.size();
 789     m_scaledPixmapSize.scale(maxScaledIconWidth, maxScaledIconHeight, Qt::KeepAspectRatio);
 790
 791     if (iconOnTop) {
 792         // Center horizontally and align on bottom within the icon-area
 793         m_pixmapPos.setX((widgetSize.width() - m_scaledPixmapSize.width()) / 2);
 794         m_pixmapPos.setY(padding + scaledIconSize - m_scaledPixmapSize.height());
 795     } else {
 796         // Center horizontally and vertically within the icon-area
 797         const TextInfo* textInfo = m_textInfo.value("text");
 798         m_pixmapPos.setX(textInfo->pos.x() - 2 * padding
 799                          - (scaledIconSize + m_scaledPixmapSize.width()) / 2);
 800         m_pixmapPos.setY(padding
 801                          + (scaledIconSize - m_scaledPixmapSize.height()) / 2);
 802     }
 803
 804     m_iconRect = QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize));
 805
 806     // Prepare the pixmap that is used when the item gets hovered
 807     if (isHovered()) {
 808         m_hoverPixmap = m_pixmap;
 809         KIconEffect* effect = KIconLoader::global()->iconEffect();
 810         // In the KIconLoader terminology, active = hover.
 811         if (effect->hasEffect(KIconLoader::Desktop, KIconLoader::ActiveState)) {
 812             m_hoverPixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::ActiveState);
 813         } else {
 814             m_hoverPixmap = m_pixmap;
 815         }
 816     } else if (hoverOpacity() <= 0.0) {
 817         // No hover animation is ongoing. Clear m_hoverPixmap to save memory.
 818         m_hoverPixmap = QPixmap();
 819     }
 820 }
 821
 822 void KStandardItemListWidget::updateTextsCache()
 823 {
 824     QTextOption textOption;
 825     switch (m_layout) {
 826     case IconsLayout:
 827         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 828         textOption.setAlignment(Qt::AlignHCenter);
 829         break;
 830     case CompactLayout:
 831     case DetailsLayout:
 832         textOption.setAlignment(Qt::AlignLeft);
 833         textOption.setWrapMode(QTextOption::NoWrap);
 834         break;
 835     default:
 836         Q_ASSERT(false);
 837         break;
 838     }
 839
 840     qDeleteAll(m_textInfo);
 841     m_textInfo.clear();
 842     for (int i = 0; i < m_sortedVisibleRoles.count(); ++i) {
 843         TextInfo* textInfo = new TextInfo();
 844         textInfo->staticText.setTextFormat(Qt::PlainText);
 845         textInfo->staticText.setPerformanceHint(QStaticText::AggressiveCaching);
 846         textInfo->staticText.setTextOption(textOption);
 847         m_textInfo.insert(m_sortedVisibleRoles[i], textInfo);
 848     }
 849
 850     switch (m_layout) {
 851     case IconsLayout:   updateIconsLayoutTextCache(); break;
 852     case CompactLayout: updateCompactLayoutTextCache(); break;
 853     case DetailsLayout: updateDetailsLayoutTextCache(); break;
 854     default: Q_ASSERT(false); break;
 855     }
 856
 857     const TextInfo* ratingTextInfo = m_textInfo.value("rating");
 858     if (ratingTextInfo) {
 859         // The text of the rating-role has been set to empty to get
 860         // replaced by a rating-image showing the rating as stars.
 861         const KItemListStyleOption& option = styleOption();
 862         QSizeF ratingSize = preferredRatingSize(option);
 863
 864         const qreal availableWidth = (m_layout == DetailsLayout)
 865                                      ? columnWidth("rating") - columnPadding(option)
 866                                      : m_textRect.width();
 867         if (ratingSize.width() > availableWidth) {
 868             ratingSize.rwidth() = availableWidth;
 869         }
 870         m_rating = QPixmap(ratingSize.toSize());
 871         m_rating.fill(Qt::transparent);
 872
 873         QPainter painter(&m_rating);
 874         const QRect rect(0, 0, m_rating.width(), m_rating.height());
 875         const int rating = data().value("rating").toInt();
 876         KRatingPainter::paintRating(&painter, rect, Qt::AlignJustify | Qt::AlignVCenter, rating);
 877     } else if (!m_rating.isNull()) {
 878         m_rating = QPixmap();
 879     }
 880 }
 881
 882 void KStandardItemListWidget::updateIconsLayoutTextCache()
 883 {
 884     //      +------+
 885     //      | Icon |
 886     //      +------+
 887     //
 888     //    Name role that
 889     // might get wrapped above
 890     //    several lines.
 891     //  Additional role 1
 892     //  Additional role 2
 893
 894     const QHash<QByteArray, QVariant> values = data();
 895
 896     const KItemListStyleOption& option = styleOption();
 897     const qreal padding = option.padding;
 898     const qreal maxWidth = size().width() - 2 * padding;
 899     const qreal widgetHeight = size().height();
 900     const qreal lineSpacing = option.fontMetrics.lineSpacing();
 901
 902     // Initialize properties for the "text" role. It will be used as anchor
 903     // for initializing the position of the other roles.
 904     TextInfo* nameTextInfo = m_textInfo.value("text");
 905     const QString nameText = KStringHandler::preProcessWrap(values["text"].toString());
 906     nameTextInfo->staticText.setText(nameText);
 907
 908     // Calculate the number of lines required for the name and the required width
 909     qreal nameWidth = 0;
 910     qreal nameHeight = 0;
 911     QTextLine line;
 912
 913     const int additionalRolesCount = qMax(visibleRoles().count() - 1, 0);
 914     const int maxNameLines = (option.maxTextSize.height() / int(lineSpacing)) - additionalRolesCount;
 915
 916     QTextLayout layout(nameTextInfo->staticText.text(), option.font);
 917     layout.setTextOption(nameTextInfo->staticText.textOption());
 918     layout.beginLayout();
 919     int nameLineIndex = 0;
 920     while ((line = layout.createLine()).isValid()) {
 921         line.setLineWidth(maxWidth);
 922         nameWidth = qMax(nameWidth, line.naturalTextWidth());
 923         nameHeight += line.height();
 924
 925         ++nameLineIndex;
 926         if (nameLineIndex == maxNameLines) {
 927             // The maximum number of textlines has been reached. If this is
 928             // the case provide an elided text if necessary.
 929             const int textLength = line.textStart() + line.textLength();
 930             if (textLength < nameText.length()) {
 931                 // Elide the last line of the text
 932                 QString lastTextLine = nameText.mid(line.textStart(), line.textLength());
 933                 lastTextLine = option.fontMetrics.elidedText(lastTextLine,
 934                                                              Qt::ElideRight,
 935                                                              line.naturalTextWidth() - 1);
 936                 const QString elidedText = nameText.left(line.textStart()) + lastTextLine;
 937                 nameTextInfo->staticText.setText(elidedText);
 938             }
 939             break;
 940         }
 941     }
 942     layout.endLayout();
 943
 944     // Use one line for each additional information
 945     nameTextInfo->staticText.setTextWidth(maxWidth);
 946     nameTextInfo->pos = QPointF(padding, widgetHeight -
 947                                          nameHeight -
 948                                          additionalRolesCount * lineSpacing -
 949                                          padding);
 950     m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2,
 951                         nameTextInfo->pos.y(),
 952                         nameWidth,
 953                         nameHeight);
 954
 955     // Calculate the position for each additional information
 956     qreal y = nameTextInfo->pos.y() + nameHeight;
 957     foreach (const QByteArray& role, m_sortedVisibleRoles) {
 958         if (role == "text") {
 959             continue;
 960         }
 961
 962         const QString text = roleText(role, values);
 963         TextInfo* textInfo = m_textInfo.value(role);
 964         textInfo->staticText.setText(text);
 965
 966         qreal requiredWidth = 0;
 967
 968         QTextLayout layout(text, option.font);
 969         QTextOption textOption;
 970         textOption.setWrapMode(QTextOption::NoWrap);
 971         layout.setTextOption(textOption);
 972
 973         layout.beginLayout();
 974         QTextLine textLine = layout.createLine();
 975         if (textLine.isValid()) {
 976             textLine.setLineWidth(maxWidth);
 977             requiredWidth = textLine.naturalTextWidth();
 978             if (requiredWidth > maxWidth) {
 979                 const QString elidedText = option.fontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
 980                 textInfo->staticText.setText(elidedText);
 981                 requiredWidth = option.fontMetrics.width(elidedText);
 982             }
 983         }
 984         layout.endLayout();
 985
 986         textInfo->pos = QPointF(padding, y);
 987         textInfo->staticText.setTextWidth(maxWidth);
 988
 989         const QRectF textRect(padding + (maxWidth - requiredWidth) / 2, y, requiredWidth, lineSpacing);
 990         m_textRect |= textRect;
 991
 992         y += lineSpacing;
 993     }
 994
 995     // Add a padding to the text rectangle
 996     m_textRect.adjust(-padding, -padding, padding, padding);
 997 }
 998
 999 void KStandardItemListWidget::updateCompactLayoutTextCache()
1000 {
1001     // +------+  Name role
1002     // | Icon |  Additional role 1
1003     // +------+  Additional role 2
1004
1005     const QHash<QByteArray, QVariant> values = data();
1006
1007     const KItemListStyleOption& option = styleOption();
1008     const qreal widgetHeight = size().height();
1009     const qreal lineSpacing = option.fontMetrics.lineSpacing();
1010     const qreal textLinesHeight = qMax(visibleRoles().count(), 1) * lineSpacing;
1011     const int scaledIconSize = (textLinesHeight < option.iconSize) ? widgetHeight - 2 * option.padding : option.iconSize;
1012
1013     qreal maximumRequiredTextWidth = 0;
1014     const qreal x = option.padding * 3 + scaledIconSize;
1015     qreal y = qRound((widgetHeight - textLinesHeight) / 2);
1016     const qreal maxWidth = size().width() - x - option.padding;
1017     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1018         const QString text = roleText(role, values);
1019         TextInfo* textInfo = m_textInfo.value(role);
1020         textInfo->staticText.setText(text);
1021
1022         qreal requiredWidth = option.fontMetrics.width(text);
1023         if (requiredWidth > maxWidth) {
1024             requiredWidth = maxWidth;
1025             const QString elidedText = option.fontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1026             textInfo->staticText.setText(elidedText);
1027         }
1028
1029         textInfo->pos = QPointF(x, y);
1030         textInfo->staticText.setTextWidth(maxWidth);
1031
1032         maximumRequiredTextWidth = qMax(maximumRequiredTextWidth, requiredWidth);
1033
1034         y += lineSpacing;
1035     }
1036
1037     m_textRect = QRectF(x - option.padding, 0, maximumRequiredTextWidth + 2 * option.padding, widgetHeight);
1038 }
1039
1040 void KStandardItemListWidget::updateDetailsLayoutTextCache()
1041 {
1042     // Precondition: Requires already updated m_expansionArea
1043     // to determine the left position.
1044
1045     // +------+
1046     // | Icon |  Name role   Additional role 1   Additional role 2
1047     // +------+
1048     m_textRect = QRectF();
1049
1050     const KItemListStyleOption& option = styleOption();
1051     const QHash<QByteArray, QVariant> values = data();
1052
1053     const qreal widgetHeight = size().height();
1054     const int scaledIconSize = widgetHeight - 2 * option.padding;
1055     const int fontHeight = option.fontMetrics.height();
1056
1057     const qreal columnWidthInc = columnPadding(option);
1058     qreal firstColumnInc = scaledIconSize;
1059     if (m_supportsItemExpanding) {
1060         firstColumnInc += (m_expansionArea.left() + m_expansionArea.right() + widgetHeight) / 2;
1061     } else {
1062         firstColumnInc += option.padding;
1063     }
1064
1065     qreal x = firstColumnInc;
1066     const qreal y = qMax(qreal(option.padding), (widgetHeight - fontHeight) / 2);
1067
1068     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1069         QString text = roleText(role, values);
1070
1071         // Elide the text in case it does not fit into the available column-width
1072         qreal requiredWidth = option.fontMetrics.width(text);
1073         const qreal roleWidth = columnWidth(role);
1074         qreal availableTextWidth = roleWidth - columnWidthInc;
1075
1076         const bool isTextRole = (role == "text");
1077         if (isTextRole) {
1078             availableTextWidth -= firstColumnInc;
1079         }
1080
1081         if (requiredWidth > availableTextWidth) {
1082             text = option.fontMetrics.elidedText(text, Qt::ElideRight, availableTextWidth);
1083             requiredWidth = option.fontMetrics.width(text);
1084         }
1085
1086         TextInfo* textInfo = m_textInfo.value(role);
1087         textInfo->staticText.setText(text);
1088         textInfo->pos = QPointF(x + columnWidthInc / 2, y);
1089         x += roleWidth;
1090
1091         if (isTextRole) {
1092             const qreal textWidth = option.extendedSelectionRegion
1093                                     ? size().width() - textInfo->pos.x()
1094                                     : requiredWidth + 2 * option.padding;
1095             m_textRect = QRectF(textInfo->pos.x() - option.padding, 0,
1096                                 textWidth, size().height());
1097
1098             // The column after the name should always be aligned on the same x-position independent
1099             // from the expansion-level shown in the name column
1100             x -= firstColumnInc;
1101         } else if (isRoleRightAligned(role)) {
1102             textInfo->pos.rx() += roleWidth - requiredWidth - columnWidthInc;
1103         }
1104     }
1105 }
1106
1107 void KStandardItemListWidget::updateAdditionalInfoTextColor()
1108 {
1109     QColor c1;
1110     if (m_customTextColor.isValid()) {
1111         c1 = m_customTextColor;
1112     } else if (isSelected() && m_layout != DetailsLayout) {
1113         c1 = styleOption().palette.highlightedText().color();
1114     } else {
1115         c1 = styleOption().palette.text().color();
1116     }
1117
1118     // For the color of the additional info the inactive text color
1119     // is not used as this might lead to unreadable text for some color schemes. Instead
1120     // the text color c1 is slightly mixed with the background color.
1121     const QColor c2 = styleOption().palette.base().color();
1122     const int p1 = 70;
1123     const int p2 = 100 - p1;
1124     m_additionalInfoTextColor = QColor((c1.red()   * p1 + c2.red()   * p2) / 100,
1125                                        (c1.green() * p1 + c2.green() * p2) / 100,
1126                                        (c1.blue()  * p1 + c2.blue()  * p2) / 100);
1127 }
1128
1129 void KStandardItemListWidget::drawPixmap(QPainter* painter, const QPixmap& pixmap)
1130 {
1131     if (m_scaledPixmapSize != pixmap.size()) {
1132         QPixmap scaledPixmap = pixmap;
1133         KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize);
1134         painter->drawPixmap(m_pixmapPos, scaledPixmap);
1135
1136 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
1137         painter->setPen(Qt::blue);
1138         painter->drawRect(QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize)));
1139 #endif
1140     } else {
1141         painter->drawPixmap(m_pixmapPos, pixmap);
1142     }
1143 }
1144
1145 void KStandardItemListWidget::drawSiblingsInformation(QPainter* painter)
1146 {
1147     const int siblingSize = size().height();
1148     const int x = (m_expansionArea.left() + m_expansionArea.right() - siblingSize) / 2;
1149     QRect siblingRect(x, 0, siblingSize, siblingSize);
1150
1151     QStyleOption option;
1152     bool isItemSibling = true;
1153
1154     const QBitArray siblings = siblingsInformation();
1155     for (int i = siblings.count() - 1; i >= 0; --i) {
1156         option.rect = siblingRect;
1157         option.state = siblings.at(i) ? QStyle::State_Sibling : QStyle::State_None;
1158
1159         if (isItemSibling) {
1160             option.state |= QStyle::State_Item;
1161             if (m_isExpandable) {
1162                 option.state |= QStyle::State_Children;
1163             }
1164             if (data()["isExpanded"].toBool()) {
1165                 option.state |= QStyle::State_Open;
1166             }
1167             isItemSibling = false;
1168         }
1169
1170         style()->drawPrimitive(QStyle::PE_IndicatorBranch, &option, painter);
1171
1172         siblingRect.translate(-siblingRect.width(), 0);
1173     }
1174 }
1175
1176 QRectF KStandardItemListWidget::roleEditingRect(const QByteArray& role) const
1177 {
1178     const TextInfo* textInfo = m_textInfo.value(role);
1179     if (!textInfo) {
1180         return QRectF();
1181     }
1182
1183     QRectF rect(textInfo->pos, textInfo->staticText.size());
1184     if (m_layout == DetailsLayout) {
1185         rect.setWidth(columnWidth(role) - rect.x());
1186     }
1187
1188     return rect;
1189 }
1190
1191 QPixmap KStandardItemListWidget::pixmapForIcon(const QString& name, int size)
1192 {
1193     const KIcon icon(name);
1194
1195     int requestedSize;
1196     if (size <= KIconLoader::SizeSmall) {
1197         requestedSize = KIconLoader::SizeSmall;
1198     } else if (size <= KIconLoader::SizeSmallMedium) {
1199         requestedSize = KIconLoader::SizeSmallMedium;
1200     } else if (size <= KIconLoader::SizeMedium) {
1201         requestedSize = KIconLoader::SizeMedium;
1202     } else if (size <= KIconLoader::SizeLarge) {
1203         requestedSize = KIconLoader::SizeLarge;
1204     } else if (size <= KIconLoader::SizeHuge) {
1205         requestedSize = KIconLoader::SizeHuge;
1206     } else if (size <= KIconLoader::SizeEnormous) {
1207         requestedSize = KIconLoader::SizeEnormous;
1208     } else if (size <= KIconLoader::SizeEnormous * 2) {
1209         requestedSize = KIconLoader::SizeEnormous * 2;
1210     } else {
1211         requestedSize = size;
1212     }
1213
1214     QPixmap pixmap = icon.pixmap(requestedSize, requestedSize);
1215     if (requestedSize != size) {
1216         KPixmapModifier::scale(pixmap, QSize(size, size));
1217     }
1218
1219     return pixmap;
1220 }
1221
1222 void KStandardItemListWidget::applyCutEffect(QPixmap& pixmap)
1223 {
1224     KIconEffect* effect = KIconLoader::global()->iconEffect();
1225     pixmap = effect->apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
1226 }
1227
1228 void KStandardItemListWidget::applyHiddenEffect(QPixmap& pixmap)
1229 {
1230     KIconEffect::semiTransparent(pixmap);
1231 }
1232
1233 QSizeF KStandardItemListWidget::preferredRatingSize(const KItemListStyleOption& option)
1234 {
1235     const qreal height = option.fontMetrics.ascent();
1236     return QSizeF(height * 5, height);
1237 }
1238
1239 qreal KStandardItemListWidget::columnPadding(const KItemListStyleOption& option)
1240 {
1241     return option.padding * 6;
1242 }
1243
1244 #include "kstandarditemlistwidget.moc"