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(m_isHidden ? m_additionalInfoTextColor : 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 bool KStandardItemListWidget::isHidden() const
 430 {
 431     return false;
 432 }
 433
 434 void KStandardItemListWidget::setTextColor(const QColor& color)
 435 {
 436     if (color != m_customTextColor) {
 437         m_customTextColor = color;
 438         updateAdditionalInfoTextColor();
 439         update();
 440     }
 441 }
 442
 443 QColor KStandardItemListWidget::textColor() const
 444 {
 445     if (m_customTextColor.isValid() && !isSelected()) {
 446         return m_customTextColor;
 447     }
 448
 449     const QPalette::ColorGroup group = isActiveWindow() ? QPalette::Active : QPalette::Inactive;
 450     const QPalette::ColorRole role = isSelected() ? QPalette::HighlightedText : QPalette::Text;
 451     return styleOption().palette.brush(group, role).color();
 452 }
 453
 454 void KStandardItemListWidget::setOverlay(const QPixmap& overlay)
 455 {
 456     m_overlay = overlay;
 457     m_dirtyContent = true;
 458     update();
 459 }
 460
 461 QPixmap KStandardItemListWidget::overlay() const
 462 {
 463     return m_overlay;
 464 }
 465
 466
 467 QString KStandardItemListWidget::roleText(const QByteArray& role,
 468                                           const QHash<QByteArray, QVariant>& values) const
 469 {
 470     return static_cast<const KStandardItemListWidgetInformant*>(informant())->roleText(role, values);
 471 }
 472
 473 void KStandardItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& current,
 474                                           const QSet<QByteArray>& roles)
 475 {
 476     Q_UNUSED(current);
 477
 478     m_dirtyContent = true;
 479
 480     QSet<QByteArray> dirtyRoles;
 481     if (roles.isEmpty()) {
 482         dirtyRoles = visibleRoles().toSet();
 483     } else {
 484         dirtyRoles = roles;
 485     }
 486
 487     // The icon-state might depend from other roles and hence is
 488     // marked as dirty whenever a role has been changed
 489     dirtyRoles.insert("iconPixmap");
 490     dirtyRoles.insert("iconName");
 491
 492     QSetIterator<QByteArray> it(dirtyRoles);
 493     while (it.hasNext()) {
 494         const QByteArray& role = it.next();
 495         m_dirtyContentRoles.insert(role);
 496     }
 497 }
 498
 499 void KStandardItemListWidget::visibleRolesChanged(const QList<QByteArray>& current,
 500                                               const QList<QByteArray>& previous)
 501 {
 502     Q_UNUSED(previous);
 503     m_sortedVisibleRoles = current;
 504     m_dirtyLayout = true;
 505 }
 506
 507 void KStandardItemListWidget::columnWidthChanged(const QByteArray& role,
 508                                              qreal current,
 509                                              qreal previous)
 510 {
 511     Q_UNUSED(role);
 512     Q_UNUSED(current);
 513     Q_UNUSED(previous);
 514     m_dirtyLayout = true;
 515 }
 516
 517 void KStandardItemListWidget::styleOptionChanged(const KItemListStyleOption& current,
 518                                              const KItemListStyleOption& previous)
 519 {
 520     Q_UNUSED(current);
 521     Q_UNUSED(previous);
 522     updateAdditionalInfoTextColor();
 523     m_dirtyLayout = true;
 524 }
 525
 526 void KStandardItemListWidget::hoveredChanged(bool hovered)
 527 {
 528     Q_UNUSED(hovered);
 529     m_dirtyLayout = true;
 530 }
 531
 532 void KStandardItemListWidget::selectedChanged(bool selected)
 533 {
 534     Q_UNUSED(selected);
 535     updateAdditionalInfoTextColor();
 536 }
 537
 538 void KStandardItemListWidget::siblingsInformationChanged(const QBitArray& current, const QBitArray& previous)
 539 {
 540     Q_UNUSED(current);
 541     Q_UNUSED(previous);
 542     m_dirtyLayout = true;
 543 }
 544
 545 void KStandardItemListWidget::editedRoleChanged(const QByteArray& current, const QByteArray& previous)
 546 {
 547     Q_UNUSED(previous);
 548
 549    QGraphicsView* parent = scene()->views()[0];
 550    if (current.isEmpty() || !parent || current != "text") {
 551         if (m_roleEditor) {
 552             emit roleEditingCanceled(index(), current, data().value(current));
 553             m_roleEditor->deleteLater();
 554             m_roleEditor = 0;
 555         }
 556         return;
 557     }
 558
 559     Q_ASSERT(!m_roleEditor);
 560
 561     const TextInfo* textInfo = m_textInfo.value("text");
 562
 563     m_roleEditor = new KItemListRoleEditor(parent);
 564     m_roleEditor->setIndex(index());
 565     m_roleEditor->setRole(current);
 566
 567     const QString text = data().value(current).toString();
 568     m_roleEditor->setPlainText(text);
 569
 570     QTextOption textOption = textInfo->staticText.textOption();
 571     m_roleEditor->document()->setDefaultTextOption(textOption);
 572
 573     // Select the text without MIME-type extension
 574     int selectionLength = text.length();
 575
 576     const QString extension = KMimeType::extractKnownExtension(text);
 577     if (!extension.isEmpty()) {
 578         selectionLength -= extension.length() + 1;
 579     }
 580
 581     if (selectionLength > 0) {
 582         QTextCursor cursor = m_roleEditor->textCursor();
 583         cursor.movePosition(QTextCursor::StartOfBlock);
 584         cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, selectionLength);
 585         m_roleEditor->setTextCursor(cursor);
 586     }
 587
 588     connect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
 589             this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
 590     connect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 591             this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 592
 593     // Adjust the geometry of the editor
 594     QRectF rect = roleEditingRect(current);
 595     const int frameWidth = m_roleEditor->frameWidth();
 596     rect.adjust(-frameWidth, -frameWidth, frameWidth, frameWidth);
 597     rect.translate(pos());
 598     if (rect.right() > parent->width()) {
 599         rect.setWidth(parent->width() - rect.left());
 600     }
 601     m_roleEditor->setGeometry(rect.toRect());
 602     m_roleEditor->show();
 603     m_roleEditor->setFocus();
 604 }
 605
 606 void KStandardItemListWidget::resizeEvent(QGraphicsSceneResizeEvent* event)
 607 {
 608     if (m_roleEditor) {
 609         setEditedRole(QByteArray());
 610         Q_ASSERT(!m_roleEditor);
 611     }
 612
 613     KItemListWidget::resizeEvent(event);
 614
 615     m_dirtyLayout = true;
 616 }
 617
 618 void KStandardItemListWidget::showEvent(QShowEvent* event)
 619 {
 620     KItemListWidget::showEvent(event);
 621
 622     // Listen to changes of the clipboard to mark the item as cut/uncut
 623     KFileItemClipboard* clipboard = KFileItemClipboard::instance();
 624
 625     const KUrl itemUrl = data().value("url").value<KUrl>();
 626     m_isCut = clipboard->isCut(itemUrl);
 627
 628     connect(clipboard, SIGNAL(cutItemsChanged()),
 629             this, SLOT(slotCutItemsChanged()));
 630 }
 631
 632 void KStandardItemListWidget::hideEvent(QHideEvent* event)
 633 {
 634     disconnect(KFileItemClipboard::instance(), SIGNAL(cutItemsChanged()),
 635                this, SLOT(slotCutItemsChanged()));
 636
 637     KItemListWidget::hideEvent(event);
 638 }
 639
 640 void KStandardItemListWidget::slotCutItemsChanged()
 641 {
 642     const KUrl itemUrl = data().value("url").value<KUrl>();
 643     const bool isCut = KFileItemClipboard::instance()->isCut(itemUrl);
 644     if (m_isCut != isCut) {
 645         m_isCut = isCut;
 646         m_pixmap = QPixmap();
 647         m_dirtyContent = true;
 648         update();
 649     }
 650 }
 651
 652 void KStandardItemListWidget::slotRoleEditingCanceled(int index,
 653                                                   const QByteArray& role,
 654                                                   const QVariant& value)
 655 {
 656     m_roleEditor->deleteLater();
 657     m_roleEditor = 0;
 658     emit roleEditingCanceled(index, role, value);
 659     setEditedRole(QByteArray());
 660 }
 661
 662 void KStandardItemListWidget::slotRoleEditingFinished(int index,
 663                                                   const QByteArray& role,
 664                                                   const QVariant& value)
 665 {
 666     m_roleEditor->deleteLater();
 667     m_roleEditor = 0;
 668     emit roleEditingFinished(index, role, value);
 669     setEditedRole(QByteArray());
 670 }
 671
 672 void KStandardItemListWidget::triggerCacheRefreshing()
 673 {
 674     if ((!m_dirtyContent && !m_dirtyLayout) || index() < 0) {
 675         return;
 676     }
 677
 678     refreshCache();
 679
 680     const QHash<QByteArray, QVariant> values = data();
 681     m_isExpandable = m_supportsItemExpanding && values["isExpandable"].toBool();
 682     m_isHidden = isHidden();
 683
 684     updateExpansionArea();
 685     updateTextsCache();
 686     updatePixmapCache();
 687
 688     m_dirtyLayout = false;
 689     m_dirtyContent = false;
 690     m_dirtyContentRoles.clear();
 691 }
 692
 693 void KStandardItemListWidget::updateExpansionArea()
 694 {
 695     if (m_supportsItemExpanding) {
 696         const QHash<QByteArray, QVariant> values = data();
 697         Q_ASSERT(values.contains("expandedParentsCount"));
 698         const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
 699         if (expandedParentsCount >= 0) {
 700             const qreal widgetHeight = size().height();
 701             const qreal inc = (widgetHeight - KIconLoader::SizeSmall) / 2;
 702             const qreal x = expandedParentsCount * widgetHeight + inc;
 703             const qreal y = inc;
 704             m_expansionArea = QRectF(x, y, KIconLoader::SizeSmall, KIconLoader::SizeSmall);
 705             return;
 706         }
 707     }
 708
 709     m_expansionArea = QRectF();
 710 }
 711
 712 void KStandardItemListWidget::updatePixmapCache()
 713 {
 714     // Precondition: Requires already updated m_textPos values to calculate
 715     // the remaining height when the alignment is vertical.
 716
 717     const QSizeF widgetSize = size();
 718     const bool iconOnTop = (m_layout == IconsLayout);
 719     const KItemListStyleOption& option = styleOption();
 720     const qreal padding = option.padding;
 721
 722     const int maxIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : option.iconSize;
 723     const int maxIconHeight = option.iconSize;
 724
 725     const QHash<QByteArray, QVariant> values = data();
 726
 727     bool updatePixmap = (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight);
 728     if (!updatePixmap && m_dirtyContent) {
 729         updatePixmap = m_dirtyContentRoles.isEmpty()
 730                        || m_dirtyContentRoles.contains("iconPixmap")
 731                        || m_dirtyContentRoles.contains("iconName")
 732                        || m_dirtyContentRoles.contains("iconOverlays");
 733     }
 734
 735     if (updatePixmap) {
 736         m_pixmap = values["iconPixmap"].value<QPixmap>();
 737         if (m_pixmap.isNull()) {
 738             // Use the icon that fits to the MIME-type
 739             QString iconName = values["iconName"].toString();
 740             if (iconName.isEmpty()) {
 741                 // The icon-name has not been not resolved by KFileItemModelRolesUpdater,
 742                 // use a generic icon as fallback
 743                 iconName = QLatin1String("unknown");
 744             }
 745             m_pixmap = pixmapForIcon(iconName, maxIconHeight);
 746         } else if (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight) {
 747             // A custom pixmap has been applied. Assure that the pixmap
 748             // is scaled to the maximum available size.
 749             KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight));
 750         }
 751
 752         const QStringList overlays = values["iconOverlays"].toStringList();
 753
 754         // Strangely KFileItem::overlays() returns empty string-values, so
 755         // we need to check first whether an overlay must be drawn at all.
 756         // It is more efficient to do it here, as KIconLoader::drawOverlays()
 757         // assumes that an overlay will be drawn and has some additional
 758         // setup time.
 759         foreach (const QString& overlay, overlays) {
 760             if (!overlay.isEmpty()) {
 761                 // There is at least one overlay, draw all overlays above m_pixmap
 762                 // and cancel the check
 763                 KIconLoader::global()->drawOverlays(overlays, m_pixmap, KIconLoader::Desktop);
 764                 break;
 765             }
 766         }
 767
 768         if (m_isCut) {
 769             applyCutEffect(m_pixmap);
 770         }
 771
 772         if (m_isHidden) {
 773             applyHiddenEffect(m_pixmap);
 774         }
 775     }
 776
 777     if (!m_overlay.isNull()) {
 778         QPainter painter(&m_pixmap);
 779         painter.drawPixmap(0, m_pixmap.height() - m_overlay.height(), m_overlay);
 780     }
 781
 782     int scaledIconSize = 0;
 783     if (iconOnTop) {
 784         const TextInfo* textInfo = m_textInfo.value("text");
 785         scaledIconSize = static_cast<int>(textInfo->pos.y() - 2 * padding);
 786     } else {
 787         const int textRowsCount = (m_layout == CompactLayout) ? visibleRoles().count() : 1;
 788         const qreal requiredTextHeight = textRowsCount * option.fontMetrics.height();
 789         scaledIconSize = (requiredTextHeight < maxIconHeight) ?
 790                            widgetSize.height() - 2 * padding : maxIconHeight;
 791     }
 792
 793     const int maxScaledIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : scaledIconSize;
 794     const int maxScaledIconHeight = scaledIconSize;
 795
 796     m_scaledPixmapSize = m_pixmap.size();
 797     m_scaledPixmapSize.scale(maxScaledIconWidth, maxScaledIconHeight, Qt::KeepAspectRatio);
 798
 799     if (iconOnTop) {
 800         // Center horizontally and align on bottom within the icon-area
 801         m_pixmapPos.setX((widgetSize.width() - m_scaledPixmapSize.width()) / 2);
 802         m_pixmapPos.setY(padding + scaledIconSize - m_scaledPixmapSize.height());
 803     } else {
 804         // Center horizontally and vertically within the icon-area
 805         const TextInfo* textInfo = m_textInfo.value("text");
 806         m_pixmapPos.setX(textInfo->pos.x() - 2 * padding
 807                          - (scaledIconSize + m_scaledPixmapSize.width()) / 2);
 808         m_pixmapPos.setY(padding
 809                          + (scaledIconSize - m_scaledPixmapSize.height()) / 2);
 810     }
 811
 812     m_iconRect = QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize));
 813
 814     // Prepare the pixmap that is used when the item gets hovered
 815     if (isHovered()) {
 816         m_hoverPixmap = m_pixmap;
 817         KIconEffect* effect = KIconLoader::global()->iconEffect();
 818         // In the KIconLoader terminology, active = hover.
 819         if (effect->hasEffect(KIconLoader::Desktop, KIconLoader::ActiveState)) {
 820             m_hoverPixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::ActiveState);
 821         } else {
 822             m_hoverPixmap = m_pixmap;
 823         }
 824     } else if (hoverOpacity() <= 0.0) {
 825         // No hover animation is ongoing. Clear m_hoverPixmap to save memory.
 826         m_hoverPixmap = QPixmap();
 827     }
 828 }
 829
 830 void KStandardItemListWidget::updateTextsCache()
 831 {
 832     QTextOption textOption;
 833     switch (m_layout) {
 834     case IconsLayout:
 835         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 836         textOption.setAlignment(Qt::AlignHCenter);
 837         break;
 838     case CompactLayout:
 839     case DetailsLayout:
 840         textOption.setAlignment(Qt::AlignLeft);
 841         textOption.setWrapMode(QTextOption::NoWrap);
 842         break;
 843     default:
 844         Q_ASSERT(false);
 845         break;
 846     }
 847
 848     qDeleteAll(m_textInfo);
 849     m_textInfo.clear();
 850     for (int i = 0; i < m_sortedVisibleRoles.count(); ++i) {
 851         TextInfo* textInfo = new TextInfo();
 852         textInfo->staticText.setTextFormat(Qt::PlainText);
 853         textInfo->staticText.setPerformanceHint(QStaticText::AggressiveCaching);
 854         textInfo->staticText.setTextOption(textOption);
 855         m_textInfo.insert(m_sortedVisibleRoles[i], textInfo);
 856     }
 857
 858     switch (m_layout) {
 859     case IconsLayout:   updateIconsLayoutTextCache(); break;
 860     case CompactLayout: updateCompactLayoutTextCache(); break;
 861     case DetailsLayout: updateDetailsLayoutTextCache(); break;
 862     default: Q_ASSERT(false); break;
 863     }
 864
 865     const TextInfo* ratingTextInfo = m_textInfo.value("rating");
 866     if (ratingTextInfo) {
 867         // The text of the rating-role has been set to empty to get
 868         // replaced by a rating-image showing the rating as stars.
 869         const KItemListStyleOption& option = styleOption();
 870         QSizeF ratingSize = preferredRatingSize(option);
 871
 872         const qreal availableWidth = (m_layout == DetailsLayout)
 873                                      ? columnWidth("rating") - columnPadding(option)
 874                                      : m_textRect.width();
 875         if (ratingSize.width() > availableWidth) {
 876             ratingSize.rwidth() = availableWidth;
 877         }
 878         m_rating = QPixmap(ratingSize.toSize());
 879         m_rating.fill(Qt::transparent);
 880
 881         QPainter painter(&m_rating);
 882         const QRect rect(0, 0, m_rating.width(), m_rating.height());
 883         const int rating = data().value("rating").toInt();
 884         KRatingPainter::paintRating(&painter, rect, Qt::AlignJustify | Qt::AlignVCenter, rating);
 885     } else if (!m_rating.isNull()) {
 886         m_rating = QPixmap();
 887     }
 888 }
 889
 890 void KStandardItemListWidget::updateIconsLayoutTextCache()
 891 {
 892     //      +------+
 893     //      | Icon |
 894     //      +------+
 895     //
 896     //    Name role that
 897     // might get wrapped above
 898     //    several lines.
 899     //  Additional role 1
 900     //  Additional role 2
 901
 902     const QHash<QByteArray, QVariant> values = data();
 903
 904     const KItemListStyleOption& option = styleOption();
 905     const qreal padding = option.padding;
 906     const qreal maxWidth = size().width() - 2 * padding;
 907     const qreal widgetHeight = size().height();
 908     const qreal lineSpacing = option.fontMetrics.lineSpacing();
 909
 910     // Initialize properties for the "text" role. It will be used as anchor
 911     // for initializing the position of the other roles.
 912     TextInfo* nameTextInfo = m_textInfo.value("text");
 913     const QString nameText = KStringHandler::preProcessWrap(values["text"].toString());
 914     nameTextInfo->staticText.setText(nameText);
 915
 916     // Calculate the number of lines required for the name and the required width
 917     qreal nameWidth = 0;
 918     qreal nameHeight = 0;
 919     QTextLine line;
 920
 921     const int additionalRolesCount = qMax(visibleRoles().count() - 1, 0);
 922     const int maxNameLines = (option.maxTextSize.height() / int(lineSpacing)) - additionalRolesCount;
 923
 924     QTextLayout layout(nameTextInfo->staticText.text(), option.font);
 925     layout.setTextOption(nameTextInfo->staticText.textOption());
 926     layout.beginLayout();
 927     int nameLineIndex = 0;
 928     while ((line = layout.createLine()).isValid()) {
 929         line.setLineWidth(maxWidth);
 930         nameWidth = qMax(nameWidth, line.naturalTextWidth());
 931         nameHeight += line.height();
 932
 933         ++nameLineIndex;
 934         if (nameLineIndex == maxNameLines) {
 935             // The maximum number of textlines has been reached. If this is
 936             // the case provide an elided text if necessary.
 937             const int textLength = line.textStart() + line.textLength();
 938             if (textLength < nameText.length()) {
 939                 // Elide the last line of the text
 940                 QString lastTextLine = nameText.mid(line.textStart(), line.textLength());
 941                 lastTextLine = option.fontMetrics.elidedText(lastTextLine,
 942                                                              Qt::ElideRight,
 943                                                              line.naturalTextWidth() - 1);
 944                 const QString elidedText = nameText.left(line.textStart()) + lastTextLine;
 945                 nameTextInfo->staticText.setText(elidedText);
 946             }
 947             break;
 948         }
 949     }
 950     layout.endLayout();
 951
 952     // Use one line for each additional information
 953     nameTextInfo->staticText.setTextWidth(maxWidth);
 954     nameTextInfo->pos = QPointF(padding, widgetHeight -
 955                                          nameHeight -
 956                                          additionalRolesCount * lineSpacing -
 957                                          padding);
 958     m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2,
 959                         nameTextInfo->pos.y(),
 960                         nameWidth,
 961                         nameHeight);
 962
 963     // Calculate the position for each additional information
 964     qreal y = nameTextInfo->pos.y() + nameHeight;
 965     foreach (const QByteArray& role, m_sortedVisibleRoles) {
 966         if (role == "text") {
 967             continue;
 968         }
 969
 970         const QString text = roleText(role, values);
 971         TextInfo* textInfo = m_textInfo.value(role);
 972         textInfo->staticText.setText(text);
 973
 974         qreal requiredWidth = 0;
 975
 976         QTextLayout layout(text, option.font);
 977         QTextOption textOption;
 978         textOption.setWrapMode(QTextOption::NoWrap);
 979         layout.setTextOption(textOption);
 980
 981         layout.beginLayout();
 982         QTextLine textLine = layout.createLine();
 983         if (textLine.isValid()) {
 984             textLine.setLineWidth(maxWidth);
 985             requiredWidth = textLine.naturalTextWidth();
 986             if (requiredWidth > maxWidth) {
 987                 const QString elidedText = option.fontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
 988                 textInfo->staticText.setText(elidedText);
 989                 requiredWidth = option.fontMetrics.width(elidedText);
 990             }
 991         }
 992         layout.endLayout();
 993
 994         textInfo->pos = QPointF(padding, y);
 995         textInfo->staticText.setTextWidth(maxWidth);
 996
 997         const QRectF textRect(padding + (maxWidth - requiredWidth) / 2, y, requiredWidth, lineSpacing);
 998         m_textRect |= textRect;
 999
1000         y += lineSpacing;
1001     }
1002
1003     // Add a padding to the text rectangle
1004     m_textRect.adjust(-padding, -padding, padding, padding);
1005 }
1006
1007 void KStandardItemListWidget::updateCompactLayoutTextCache()
1008 {
1009     // +------+  Name role
1010     // | Icon |  Additional role 1
1011     // +------+  Additional role 2
1012
1013     const QHash<QByteArray, QVariant> values = data();
1014
1015     const KItemListStyleOption& option = styleOption();
1016     const qreal widgetHeight = size().height();
1017     const qreal lineSpacing = option.fontMetrics.lineSpacing();
1018     const qreal textLinesHeight = qMax(visibleRoles().count(), 1) * lineSpacing;
1019     const int scaledIconSize = (textLinesHeight < option.iconSize) ? widgetHeight - 2 * option.padding : option.iconSize;
1020
1021     qreal maximumRequiredTextWidth = 0;
1022     const qreal x = option.padding * 3 + scaledIconSize;
1023     qreal y = qRound((widgetHeight - textLinesHeight) / 2);
1024     const qreal maxWidth = size().width() - x - option.padding;
1025     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1026         const QString text = roleText(role, values);
1027         TextInfo* textInfo = m_textInfo.value(role);
1028         textInfo->staticText.setText(text);
1029
1030         qreal requiredWidth = option.fontMetrics.width(text);
1031         if (requiredWidth > maxWidth) {
1032             requiredWidth = maxWidth;
1033             const QString elidedText = option.fontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1034             textInfo->staticText.setText(elidedText);
1035         }
1036
1037         textInfo->pos = QPointF(x, y);
1038         textInfo->staticText.setTextWidth(maxWidth);
1039
1040         maximumRequiredTextWidth = qMax(maximumRequiredTextWidth, requiredWidth);
1041
1042         y += lineSpacing;
1043     }
1044
1045     m_textRect = QRectF(x - option.padding, 0, maximumRequiredTextWidth + 2 * option.padding, widgetHeight);
1046 }
1047
1048 void KStandardItemListWidget::updateDetailsLayoutTextCache()
1049 {
1050     // Precondition: Requires already updated m_expansionArea
1051     // to determine the left position.
1052
1053     // +------+
1054     // | Icon |  Name role   Additional role 1   Additional role 2
1055     // +------+
1056     m_textRect = QRectF();
1057
1058     const KItemListStyleOption& option = styleOption();
1059     const QHash<QByteArray, QVariant> values = data();
1060
1061     const qreal widgetHeight = size().height();
1062     const int scaledIconSize = widgetHeight - 2 * option.padding;
1063     const int fontHeight = option.fontMetrics.height();
1064
1065     const qreal columnWidthInc = columnPadding(option);
1066     qreal firstColumnInc = scaledIconSize;
1067     if (m_supportsItemExpanding) {
1068         firstColumnInc += (m_expansionArea.left() + m_expansionArea.right() + widgetHeight) / 2;
1069     } else {
1070         firstColumnInc += option.padding;
1071     }
1072
1073     qreal x = firstColumnInc;
1074     const qreal y = qMax(qreal(option.padding), (widgetHeight - fontHeight) / 2);
1075
1076     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1077         QString text = roleText(role, values);
1078
1079         // Elide the text in case it does not fit into the available column-width
1080         qreal requiredWidth = option.fontMetrics.width(text);
1081         const qreal roleWidth = columnWidth(role);
1082         qreal availableTextWidth = roleWidth - columnWidthInc;
1083
1084         const bool isTextRole = (role == "text");
1085         if (isTextRole) {
1086             availableTextWidth -= firstColumnInc;
1087         }
1088
1089         if (requiredWidth > availableTextWidth) {
1090             text = option.fontMetrics.elidedText(text, Qt::ElideRight, availableTextWidth);
1091             requiredWidth = option.fontMetrics.width(text);
1092         }
1093
1094         TextInfo* textInfo = m_textInfo.value(role);
1095         textInfo->staticText.setText(text);
1096         textInfo->pos = QPointF(x + columnWidthInc / 2, y);
1097         x += roleWidth;
1098
1099         if (isTextRole) {
1100             const qreal textWidth = option.extendedSelectionRegion
1101                                     ? size().width() - textInfo->pos.x()
1102                                     : requiredWidth + 2 * option.padding;
1103             m_textRect = QRectF(textInfo->pos.x() - option.padding, 0,
1104                                 textWidth, size().height());
1105
1106             // The column after the name should always be aligned on the same x-position independent
1107             // from the expansion-level shown in the name column
1108             x -= firstColumnInc;
1109         } else if (isRoleRightAligned(role)) {
1110             textInfo->pos.rx() += roleWidth - requiredWidth - columnWidthInc;
1111         }
1112     }
1113 }
1114
1115 void KStandardItemListWidget::updateAdditionalInfoTextColor()
1116 {
1117     QColor c1;
1118     if (m_customTextColor.isValid()) {
1119         c1 = m_customTextColor;
1120     } else if (isSelected() && m_layout != DetailsLayout) {
1121         c1 = styleOption().palette.highlightedText().color();
1122     } else {
1123         c1 = styleOption().palette.text().color();
1124     }
1125
1126     // For the color of the additional info the inactive text color
1127     // is not used as this might lead to unreadable text for some color schemes. Instead
1128     // the text color c1 is slightly mixed with the background color.
1129     const QColor c2 = styleOption().palette.base().color();
1130     const int p1 = 70;
1131     const int p2 = 100 - p1;
1132     m_additionalInfoTextColor = QColor((c1.red()   * p1 + c2.red()   * p2) / 100,
1133                                        (c1.green() * p1 + c2.green() * p2) / 100,
1134                                        (c1.blue()  * p1 + c2.blue()  * p2) / 100);
1135 }
1136
1137 void KStandardItemListWidget::drawPixmap(QPainter* painter, const QPixmap& pixmap)
1138 {
1139     if (m_scaledPixmapSize != pixmap.size()) {
1140         QPixmap scaledPixmap = pixmap;
1141         KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize);
1142         painter->drawPixmap(m_pixmapPos, scaledPixmap);
1143
1144 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
1145         painter->setPen(Qt::blue);
1146         painter->drawRect(QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize)));
1147 #endif
1148     } else {
1149         painter->drawPixmap(m_pixmapPos, pixmap);
1150     }
1151 }
1152
1153 void KStandardItemListWidget::drawSiblingsInformation(QPainter* painter)
1154 {
1155     const int siblingSize = size().height();
1156     const int x = (m_expansionArea.left() + m_expansionArea.right() - siblingSize) / 2;
1157     QRect siblingRect(x, 0, siblingSize, siblingSize);
1158
1159     QStyleOption option;
1160     bool isItemSibling = true;
1161
1162     const QBitArray siblings = siblingsInformation();
1163     for (int i = siblings.count() - 1; i >= 0; --i) {
1164         option.rect = siblingRect;
1165         option.state = siblings.at(i) ? QStyle::State_Sibling : QStyle::State_None;
1166
1167         if (isItemSibling) {
1168             option.state |= QStyle::State_Item;
1169             if (m_isExpandable) {
1170                 option.state |= QStyle::State_Children;
1171             }
1172             if (data()["isExpanded"].toBool()) {
1173                 option.state |= QStyle::State_Open;
1174             }
1175             isItemSibling = false;
1176         }
1177
1178         style()->drawPrimitive(QStyle::PE_IndicatorBranch, &option, painter);
1179
1180         siblingRect.translate(-siblingRect.width(), 0);
1181     }
1182 }
1183
1184 QRectF KStandardItemListWidget::roleEditingRect(const QByteArray& role) const
1185 {
1186     const TextInfo* textInfo = m_textInfo.value(role);
1187     if (!textInfo) {
1188         return QRectF();
1189     }
1190
1191     QRectF rect(textInfo->pos, textInfo->staticText.size());
1192     if (m_layout == DetailsLayout) {
1193         rect.setWidth(columnWidth(role) - rect.x());
1194     }
1195
1196     return rect;
1197 }
1198
1199 QPixmap KStandardItemListWidget::pixmapForIcon(const QString& name, int size)
1200 {
1201     const KIcon icon(name);
1202
1203     int requestedSize;
1204     if (size <= KIconLoader::SizeSmall) {
1205         requestedSize = KIconLoader::SizeSmall;
1206     } else if (size <= KIconLoader::SizeSmallMedium) {
1207         requestedSize = KIconLoader::SizeSmallMedium;
1208     } else if (size <= KIconLoader::SizeMedium) {
1209         requestedSize = KIconLoader::SizeMedium;
1210     } else if (size <= KIconLoader::SizeLarge) {
1211         requestedSize = KIconLoader::SizeLarge;
1212     } else if (size <= KIconLoader::SizeHuge) {
1213         requestedSize = KIconLoader::SizeHuge;
1214     } else if (size <= KIconLoader::SizeEnormous) {
1215         requestedSize = KIconLoader::SizeEnormous;
1216     } else if (size <= KIconLoader::SizeEnormous * 2) {
1217         requestedSize = KIconLoader::SizeEnormous * 2;
1218     } else {
1219         requestedSize = size;
1220     }
1221
1222     QPixmap pixmap = icon.pixmap(requestedSize, requestedSize);
1223     if (requestedSize != size) {
1224         KPixmapModifier::scale(pixmap, QSize(size, size));
1225     }
1226
1227     return pixmap;
1228 }
1229
1230 void KStandardItemListWidget::applyCutEffect(QPixmap& pixmap)
1231 {
1232     KIconEffect* effect = KIconLoader::global()->iconEffect();
1233     pixmap = effect->apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
1234 }
1235
1236 void KStandardItemListWidget::applyHiddenEffect(QPixmap& pixmap)
1237 {
1238     KIconEffect::semiTransparent(pixmap);
1239 }
1240
1241 QSizeF KStandardItemListWidget::preferredRatingSize(const KItemListStyleOption& option)
1242 {
1243     const qreal height = option.fontMetrics.ascent();
1244     return QSizeF(height * 5, height);
1245 }
1246
1247 qreal KStandardItemListWidget::columnPadding(const KItemListStyleOption& option)
1248 {
1249     return option.padding * 6;
1250 }
1251
1252 #include "kstandarditemlistwidget.moc"