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 QPixmap KStandardItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem* option,
 409                                                   QWidget* widget)
 410 {
 411     QPixmap pixmap = KItemListWidget::createDragPixmap(option, widget);
 412     if (m_layout != DetailsLayout || styleOption().extendedSelectionRegion) {
 413         return pixmap;
 414     }
 415
 416     // Only return the content of the text-column as pixmap
 417     const int leftClip = m_pixmapPos.x();
 418
 419     const TextInfo* textInfo = m_textInfo.value("text");
 420     const int rightClip = textInfo->pos.x() +
 421                           textInfo->staticText.size().width() +
 422                           2 * styleOption().padding;
 423
 424     QPixmap clippedPixmap(rightClip - leftClip + 1, pixmap.height());
 425     clippedPixmap.fill(Qt::transparent);
 426
 427     QPainter painter(&clippedPixmap);
 428     painter.drawPixmap(-leftClip, 0, pixmap);
 429
 430     return clippedPixmap;
 431 }
 432
 433
 434 KItemListWidgetInformant* KStandardItemListWidget::createInformant()
 435 {
 436     return new KStandardItemListWidgetInformant();
 437 }
 438
 439 void KStandardItemListWidget::invalidateCache()
 440 {
 441     m_dirtyLayout = true;
 442     m_dirtyContent = true;
 443 }
 444
 445 void KStandardItemListWidget::refreshCache()
 446 {
 447 }
 448
 449 bool KStandardItemListWidget::isRoleRightAligned(const QByteArray& role) const
 450 {
 451     Q_UNUSED(role);
 452     return false;
 453 }
 454
 455 bool KStandardItemListWidget::isHidden() const
 456 {
 457     return false;
 458 }
 459
 460 void KStandardItemListWidget::setTextColor(const QColor& color)
 461 {
 462     if (color != m_customTextColor) {
 463         m_customTextColor = color;
 464         updateAdditionalInfoTextColor();
 465         update();
 466     }
 467 }
 468
 469 QColor KStandardItemListWidget::textColor() const
 470 {
 471     if (m_customTextColor.isValid() && !isSelected()) {
 472         return m_customTextColor;
 473     }
 474
 475     const QPalette::ColorGroup group = isActiveWindow() ? QPalette::Active : QPalette::Inactive;
 476     const QPalette::ColorRole role = isSelected() ? QPalette::HighlightedText : QPalette::Text;
 477     return styleOption().palette.brush(group, role).color();
 478 }
 479
 480 void KStandardItemListWidget::setOverlay(const QPixmap& overlay)
 481 {
 482     m_overlay = overlay;
 483     m_dirtyContent = true;
 484     update();
 485 }
 486
 487 QPixmap KStandardItemListWidget::overlay() const
 488 {
 489     return m_overlay;
 490 }
 491
 492
 493 QString KStandardItemListWidget::roleText(const QByteArray& role,
 494                                           const QHash<QByteArray, QVariant>& values) const
 495 {
 496     return static_cast<const KStandardItemListWidgetInformant*>(informant())->roleText(role, values);
 497 }
 498
 499 void KStandardItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& current,
 500                                           const QSet<QByteArray>& roles)
 501 {
 502     Q_UNUSED(current);
 503
 504     m_dirtyContent = true;
 505
 506     QSet<QByteArray> dirtyRoles;
 507     if (roles.isEmpty()) {
 508         dirtyRoles = visibleRoles().toSet();
 509     } else {
 510         dirtyRoles = roles;
 511     }
 512
 513     // The icon-state might depend from other roles and hence is
 514     // marked as dirty whenever a role has been changed
 515     dirtyRoles.insert("iconPixmap");
 516     dirtyRoles.insert("iconName");
 517
 518     QSetIterator<QByteArray> it(dirtyRoles);
 519     while (it.hasNext()) {
 520         const QByteArray& role = it.next();
 521         m_dirtyContentRoles.insert(role);
 522     }
 523 }
 524
 525 void KStandardItemListWidget::visibleRolesChanged(const QList<QByteArray>& current,
 526                                               const QList<QByteArray>& previous)
 527 {
 528     Q_UNUSED(previous);
 529     m_sortedVisibleRoles = current;
 530     m_dirtyLayout = true;
 531 }
 532
 533 void KStandardItemListWidget::columnWidthChanged(const QByteArray& role,
 534                                              qreal current,
 535                                              qreal previous)
 536 {
 537     Q_UNUSED(role);
 538     Q_UNUSED(current);
 539     Q_UNUSED(previous);
 540     m_dirtyLayout = true;
 541 }
 542
 543 void KStandardItemListWidget::styleOptionChanged(const KItemListStyleOption& current,
 544                                              const KItemListStyleOption& previous)
 545 {
 546     Q_UNUSED(current);
 547     Q_UNUSED(previous);
 548     updateAdditionalInfoTextColor();
 549     m_dirtyLayout = true;
 550 }
 551
 552 void KStandardItemListWidget::hoveredChanged(bool hovered)
 553 {
 554     Q_UNUSED(hovered);
 555     m_dirtyLayout = true;
 556 }
 557
 558 void KStandardItemListWidget::selectedChanged(bool selected)
 559 {
 560     Q_UNUSED(selected);
 561     updateAdditionalInfoTextColor();
 562 }
 563
 564 void KStandardItemListWidget::siblingsInformationChanged(const QBitArray& current, const QBitArray& previous)
 565 {
 566     Q_UNUSED(current);
 567     Q_UNUSED(previous);
 568     m_dirtyLayout = true;
 569 }
 570
 571 void KStandardItemListWidget::editedRoleChanged(const QByteArray& current, const QByteArray& previous)
 572 {
 573     Q_UNUSED(previous);
 574
 575    QGraphicsView* parent = scene()->views()[0];
 576    if (current.isEmpty() || !parent || current != "text") {
 577         if (m_roleEditor) {
 578             emit roleEditingCanceled(index(), current, data().value(current));
 579             m_roleEditor->deleteLater();
 580             m_roleEditor = 0;
 581         }
 582         return;
 583     }
 584
 585     Q_ASSERT(!m_roleEditor);
 586
 587     const TextInfo* textInfo = m_textInfo.value("text");
 588
 589     m_roleEditor = new KItemListRoleEditor(parent);
 590     m_roleEditor->setIndex(index());
 591     m_roleEditor->setRole(current);
 592
 593     const QString text = data().value(current).toString();
 594     m_roleEditor->setPlainText(text);
 595
 596     QTextOption textOption = textInfo->staticText.textOption();
 597     m_roleEditor->document()->setDefaultTextOption(textOption);
 598
 599     // Select the text without MIME-type extension
 600     int selectionLength = text.length();
 601
 602     const QString extension = KMimeType::extractKnownExtension(text);
 603     if (!extension.isEmpty()) {
 604         selectionLength -= extension.length() + 1;
 605     }
 606
 607     if (selectionLength > 0) {
 608         QTextCursor cursor = m_roleEditor->textCursor();
 609         cursor.movePosition(QTextCursor::StartOfBlock);
 610         cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, selectionLength);
 611         m_roleEditor->setTextCursor(cursor);
 612     }
 613
 614     connect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
 615             this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
 616     connect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 617             this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 618
 619     // Adjust the geometry of the editor
 620     QRectF rect = roleEditingRect(current);
 621     const int frameWidth = m_roleEditor->frameWidth();
 622     rect.adjust(-frameWidth, -frameWidth, frameWidth, frameWidth);
 623     rect.translate(pos());
 624     if (rect.right() > parent->width()) {
 625         rect.setWidth(parent->width() - rect.left());
 626     }
 627     m_roleEditor->setGeometry(rect.toRect());
 628     m_roleEditor->show();
 629     m_roleEditor->setFocus();
 630 }
 631
 632 void KStandardItemListWidget::resizeEvent(QGraphicsSceneResizeEvent* event)
 633 {
 634     if (m_roleEditor) {
 635         setEditedRole(QByteArray());
 636         Q_ASSERT(!m_roleEditor);
 637     }
 638
 639     KItemListWidget::resizeEvent(event);
 640
 641     m_dirtyLayout = true;
 642 }
 643
 644 void KStandardItemListWidget::showEvent(QShowEvent* event)
 645 {
 646     KItemListWidget::showEvent(event);
 647
 648     // Listen to changes of the clipboard to mark the item as cut/uncut
 649     KFileItemClipboard* clipboard = KFileItemClipboard::instance();
 650
 651     const KUrl itemUrl = data().value("url").value<KUrl>();
 652     m_isCut = clipboard->isCut(itemUrl);
 653
 654     connect(clipboard, SIGNAL(cutItemsChanged()),
 655             this, SLOT(slotCutItemsChanged()));
 656 }
 657
 658 void KStandardItemListWidget::hideEvent(QHideEvent* event)
 659 {
 660     disconnect(KFileItemClipboard::instance(), SIGNAL(cutItemsChanged()),
 661                this, SLOT(slotCutItemsChanged()));
 662
 663     KItemListWidget::hideEvent(event);
 664 }
 665
 666 void KStandardItemListWidget::slotCutItemsChanged()
 667 {
 668     const KUrl itemUrl = data().value("url").value<KUrl>();
 669     const bool isCut = KFileItemClipboard::instance()->isCut(itemUrl);
 670     if (m_isCut != isCut) {
 671         m_isCut = isCut;
 672         m_pixmap = QPixmap();
 673         m_dirtyContent = true;
 674         update();
 675     }
 676 }
 677
 678 void KStandardItemListWidget::slotRoleEditingCanceled(int index,
 679                                                   const QByteArray& role,
 680                                                   const QVariant& value)
 681 {
 682     m_roleEditor->deleteLater();
 683     m_roleEditor = 0;
 684     emit roleEditingCanceled(index, role, value);
 685     setEditedRole(QByteArray());
 686 }
 687
 688 void KStandardItemListWidget::slotRoleEditingFinished(int index,
 689                                                   const QByteArray& role,
 690                                                   const QVariant& value)
 691 {
 692     m_roleEditor->deleteLater();
 693     m_roleEditor = 0;
 694     emit roleEditingFinished(index, role, value);
 695     setEditedRole(QByteArray());
 696 }
 697
 698 void KStandardItemListWidget::triggerCacheRefreshing()
 699 {
 700     if ((!m_dirtyContent && !m_dirtyLayout) || index() < 0) {
 701         return;
 702     }
 703
 704     refreshCache();
 705
 706     const QHash<QByteArray, QVariant> values = data();
 707     m_isExpandable = m_supportsItemExpanding && values["isExpandable"].toBool();
 708     m_isHidden = isHidden();
 709
 710     updateExpansionArea();
 711     updateTextsCache();
 712     updatePixmapCache();
 713
 714     m_dirtyLayout = false;
 715     m_dirtyContent = false;
 716     m_dirtyContentRoles.clear();
 717 }
 718
 719 void KStandardItemListWidget::updateExpansionArea()
 720 {
 721     if (m_supportsItemExpanding) {
 722         const QHash<QByteArray, QVariant> values = data();
 723         Q_ASSERT(values.contains("expandedParentsCount"));
 724         const int expandedParentsCount = values.value("expandedParentsCount", 0).toInt();
 725         if (expandedParentsCount >= 0) {
 726             const qreal widgetHeight = size().height();
 727             const qreal inc = (widgetHeight - KIconLoader::SizeSmall) / 2;
 728             const qreal x = expandedParentsCount * widgetHeight + inc;
 729             const qreal y = inc;
 730             m_expansionArea = QRectF(x, y, KIconLoader::SizeSmall, KIconLoader::SizeSmall);
 731             return;
 732         }
 733     }
 734
 735     m_expansionArea = QRectF();
 736 }
 737
 738 void KStandardItemListWidget::updatePixmapCache()
 739 {
 740     // Precondition: Requires already updated m_textPos values to calculate
 741     // the remaining height when the alignment is vertical.
 742
 743     const QSizeF widgetSize = size();
 744     const bool iconOnTop = (m_layout == IconsLayout);
 745     const KItemListStyleOption& option = styleOption();
 746     const qreal padding = option.padding;
 747
 748     const int maxIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : option.iconSize;
 749     const int maxIconHeight = option.iconSize;
 750
 751     const QHash<QByteArray, QVariant> values = data();
 752
 753     bool updatePixmap = (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight);
 754     if (!updatePixmap && m_dirtyContent) {
 755         updatePixmap = m_dirtyContentRoles.isEmpty()
 756                        || m_dirtyContentRoles.contains("iconPixmap")
 757                        || m_dirtyContentRoles.contains("iconName")
 758                        || m_dirtyContentRoles.contains("iconOverlays");
 759     }
 760
 761     if (updatePixmap) {
 762         m_pixmap = values["iconPixmap"].value<QPixmap>();
 763         if (m_pixmap.isNull()) {
 764             // Use the icon that fits to the MIME-type
 765             QString iconName = values["iconName"].toString();
 766             if (iconName.isEmpty()) {
 767                 // The icon-name has not been not resolved by KFileItemModelRolesUpdater,
 768                 // use a generic icon as fallback
 769                 iconName = QLatin1String("unknown");
 770             }
 771             m_pixmap = pixmapForIcon(iconName, maxIconHeight);
 772         } else if (m_pixmap.width() != maxIconWidth || m_pixmap.height() != maxIconHeight) {
 773             // A custom pixmap has been applied. Assure that the pixmap
 774             // is scaled to the maximum available size.
 775             KPixmapModifier::scale(m_pixmap, QSize(maxIconWidth, maxIconHeight));
 776         }
 777
 778         const QStringList overlays = values["iconOverlays"].toStringList();
 779
 780         // Strangely KFileItem::overlays() returns empty string-values, so
 781         // we need to check first whether an overlay must be drawn at all.
 782         // It is more efficient to do it here, as KIconLoader::drawOverlays()
 783         // assumes that an overlay will be drawn and has some additional
 784         // setup time.
 785         foreach (const QString& overlay, overlays) {
 786             if (!overlay.isEmpty()) {
 787                 // There is at least one overlay, draw all overlays above m_pixmap
 788                 // and cancel the check
 789                 KIconLoader::global()->drawOverlays(overlays, m_pixmap, KIconLoader::Desktop);
 790                 break;
 791             }
 792         }
 793
 794         if (m_isCut) {
 795             applyCutEffect(m_pixmap);
 796         }
 797
 798         if (m_isHidden) {
 799             applyHiddenEffect(m_pixmap);
 800         }
 801     }
 802
 803     if (!m_overlay.isNull()) {
 804         QPainter painter(&m_pixmap);
 805         painter.drawPixmap(0, m_pixmap.height() - m_overlay.height(), m_overlay);
 806     }
 807
 808     int scaledIconSize = 0;
 809     if (iconOnTop) {
 810         const TextInfo* textInfo = m_textInfo.value("text");
 811         scaledIconSize = static_cast<int>(textInfo->pos.y() - 2 * padding);
 812     } else {
 813         const int textRowsCount = (m_layout == CompactLayout) ? visibleRoles().count() : 1;
 814         const qreal requiredTextHeight = textRowsCount * option.fontMetrics.height();
 815         scaledIconSize = (requiredTextHeight < maxIconHeight) ?
 816                            widgetSize.height() - 2 * padding : maxIconHeight;
 817     }
 818
 819     const int maxScaledIconWidth = iconOnTop ? widgetSize.width() - 2 * padding : scaledIconSize;
 820     const int maxScaledIconHeight = scaledIconSize;
 821
 822     m_scaledPixmapSize = m_pixmap.size();
 823     m_scaledPixmapSize.scale(maxScaledIconWidth, maxScaledIconHeight, Qt::KeepAspectRatio);
 824
 825     if (iconOnTop) {
 826         // Center horizontally and align on bottom within the icon-area
 827         m_pixmapPos.setX((widgetSize.width() - m_scaledPixmapSize.width()) / 2);
 828         m_pixmapPos.setY(padding + scaledIconSize - m_scaledPixmapSize.height());
 829     } else {
 830         // Center horizontally and vertically within the icon-area
 831         const TextInfo* textInfo = m_textInfo.value("text");
 832         m_pixmapPos.setX(textInfo->pos.x() - 2 * padding
 833                          - (scaledIconSize + m_scaledPixmapSize.width()) / 2);
 834         m_pixmapPos.setY(padding
 835                          + (scaledIconSize - m_scaledPixmapSize.height()) / 2);
 836     }
 837
 838     m_iconRect = QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize));
 839
 840     // Prepare the pixmap that is used when the item gets hovered
 841     if (isHovered()) {
 842         m_hoverPixmap = m_pixmap;
 843         KIconEffect* effect = KIconLoader::global()->iconEffect();
 844         // In the KIconLoader terminology, active = hover.
 845         if (effect->hasEffect(KIconLoader::Desktop, KIconLoader::ActiveState)) {
 846             m_hoverPixmap = effect->apply(m_pixmap, KIconLoader::Desktop, KIconLoader::ActiveState);
 847         } else {
 848             m_hoverPixmap = m_pixmap;
 849         }
 850     } else if (hoverOpacity() <= 0.0) {
 851         // No hover animation is ongoing. Clear m_hoverPixmap to save memory.
 852         m_hoverPixmap = QPixmap();
 853     }
 854 }
 855
 856 void KStandardItemListWidget::updateTextsCache()
 857 {
 858     QTextOption textOption;
 859     switch (m_layout) {
 860     case IconsLayout:
 861         textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 862         textOption.setAlignment(Qt::AlignHCenter);
 863         break;
 864     case CompactLayout:
 865     case DetailsLayout:
 866         textOption.setAlignment(Qt::AlignLeft);
 867         textOption.setWrapMode(QTextOption::NoWrap);
 868         break;
 869     default:
 870         Q_ASSERT(false);
 871         break;
 872     }
 873
 874     qDeleteAll(m_textInfo);
 875     m_textInfo.clear();
 876     for (int i = 0; i < m_sortedVisibleRoles.count(); ++i) {
 877         TextInfo* textInfo = new TextInfo();
 878         textInfo->staticText.setTextFormat(Qt::PlainText);
 879         textInfo->staticText.setPerformanceHint(QStaticText::AggressiveCaching);
 880         textInfo->staticText.setTextOption(textOption);
 881         m_textInfo.insert(m_sortedVisibleRoles[i], textInfo);
 882     }
 883
 884     switch (m_layout) {
 885     case IconsLayout:   updateIconsLayoutTextCache(); break;
 886     case CompactLayout: updateCompactLayoutTextCache(); break;
 887     case DetailsLayout: updateDetailsLayoutTextCache(); break;
 888     default: Q_ASSERT(false); break;
 889     }
 890
 891     const TextInfo* ratingTextInfo = m_textInfo.value("rating");
 892     if (ratingTextInfo) {
 893         // The text of the rating-role has been set to empty to get
 894         // replaced by a rating-image showing the rating as stars.
 895         const KItemListStyleOption& option = styleOption();
 896         QSizeF ratingSize = preferredRatingSize(option);
 897
 898         const qreal availableWidth = (m_layout == DetailsLayout)
 899                                      ? columnWidth("rating") - columnPadding(option)
 900                                      : m_textRect.width();
 901         if (ratingSize.width() > availableWidth) {
 902             ratingSize.rwidth() = availableWidth;
 903         }
 904         m_rating = QPixmap(ratingSize.toSize());
 905         m_rating.fill(Qt::transparent);
 906
 907         QPainter painter(&m_rating);
 908         const QRect rect(0, 0, m_rating.width(), m_rating.height());
 909         const int rating = data().value("rating").toInt();
 910         KRatingPainter::paintRating(&painter, rect, Qt::AlignJustify | Qt::AlignVCenter, rating);
 911     } else if (!m_rating.isNull()) {
 912         m_rating = QPixmap();
 913     }
 914 }
 915
 916 void KStandardItemListWidget::updateIconsLayoutTextCache()
 917 {
 918     //      +------+
 919     //      | Icon |
 920     //      +------+
 921     //
 922     //    Name role that
 923     // might get wrapped above
 924     //    several lines.
 925     //  Additional role 1
 926     //  Additional role 2
 927
 928     const QHash<QByteArray, QVariant> values = data();
 929
 930     const KItemListStyleOption& option = styleOption();
 931     const qreal padding = option.padding;
 932     const qreal maxWidth = size().width() - 2 * padding;
 933     const qreal widgetHeight = size().height();
 934     const qreal lineSpacing = option.fontMetrics.lineSpacing();
 935
 936     // Initialize properties for the "text" role. It will be used as anchor
 937     // for initializing the position of the other roles.
 938     TextInfo* nameTextInfo = m_textInfo.value("text");
 939     const QString nameText = KStringHandler::preProcessWrap(values["text"].toString());
 940     nameTextInfo->staticText.setText(nameText);
 941
 942     // Calculate the number of lines required for the name and the required width
 943     qreal nameWidth = 0;
 944     qreal nameHeight = 0;
 945     QTextLine line;
 946
 947     const int additionalRolesCount = qMax(visibleRoles().count() - 1, 0);
 948     const int maxNameLines = (option.maxTextSize.height() / int(lineSpacing)) - additionalRolesCount;
 949
 950     QTextLayout layout(nameTextInfo->staticText.text(), option.font);
 951     layout.setTextOption(nameTextInfo->staticText.textOption());
 952     layout.beginLayout();
 953     int nameLineIndex = 0;
 954     while ((line = layout.createLine()).isValid()) {
 955         line.setLineWidth(maxWidth);
 956         nameWidth = qMax(nameWidth, line.naturalTextWidth());
 957         nameHeight += line.height();
 958
 959         ++nameLineIndex;
 960         if (nameLineIndex == maxNameLines) {
 961             // The maximum number of textlines has been reached. If this is
 962             // the case provide an elided text if necessary.
 963             const int textLength = line.textStart() + line.textLength();
 964             if (textLength < nameText.length()) {
 965                 // Elide the last line of the text
 966                 QString lastTextLine = nameText.mid(line.textStart(), line.textLength());
 967                 lastTextLine = option.fontMetrics.elidedText(lastTextLine,
 968                                                              Qt::ElideRight,
 969                                                              line.naturalTextWidth() - 1);
 970                 const QString elidedText = nameText.left(line.textStart()) + lastTextLine;
 971                 nameTextInfo->staticText.setText(elidedText);
 972             }
 973             break;
 974         }
 975     }
 976     layout.endLayout();
 977
 978     // Use one line for each additional information
 979     nameTextInfo->staticText.setTextWidth(maxWidth);
 980     nameTextInfo->pos = QPointF(padding, widgetHeight -
 981                                          nameHeight -
 982                                          additionalRolesCount * lineSpacing -
 983                                          padding);
 984     m_textRect = QRectF(padding + (maxWidth - nameWidth) / 2,
 985                         nameTextInfo->pos.y(),
 986                         nameWidth,
 987                         nameHeight);
 988
 989     // Calculate the position for each additional information
 990     qreal y = nameTextInfo->pos.y() + nameHeight;
 991     foreach (const QByteArray& role, m_sortedVisibleRoles) {
 992         if (role == "text") {
 993             continue;
 994         }
 995
 996         const QString text = roleText(role, values);
 997         TextInfo* textInfo = m_textInfo.value(role);
 998         textInfo->staticText.setText(text);
 999
1000         qreal requiredWidth = 0;
1001
1002         QTextLayout layout(text, option.font);
1003         QTextOption textOption;
1004         textOption.setWrapMode(QTextOption::NoWrap);
1005         layout.setTextOption(textOption);
1006
1007         layout.beginLayout();
1008         QTextLine textLine = layout.createLine();
1009         if (textLine.isValid()) {
1010             textLine.setLineWidth(maxWidth);
1011             requiredWidth = textLine.naturalTextWidth();
1012             if (requiredWidth > maxWidth) {
1013                 const QString elidedText = option.fontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1014                 textInfo->staticText.setText(elidedText);
1015                 requiredWidth = option.fontMetrics.width(elidedText);
1016             }
1017         }
1018         layout.endLayout();
1019
1020         textInfo->pos = QPointF(padding, y);
1021         textInfo->staticText.setTextWidth(maxWidth);
1022
1023         const QRectF textRect(padding + (maxWidth - requiredWidth) / 2, y, requiredWidth, lineSpacing);
1024         m_textRect |= textRect;
1025
1026         y += lineSpacing;
1027     }
1028
1029     // Add a padding to the text rectangle
1030     m_textRect.adjust(-padding, -padding, padding, padding);
1031 }
1032
1033 void KStandardItemListWidget::updateCompactLayoutTextCache()
1034 {
1035     // +------+  Name role
1036     // | Icon |  Additional role 1
1037     // +------+  Additional role 2
1038
1039     const QHash<QByteArray, QVariant> values = data();
1040
1041     const KItemListStyleOption& option = styleOption();
1042     const qreal widgetHeight = size().height();
1043     const qreal lineSpacing = option.fontMetrics.lineSpacing();
1044     const qreal textLinesHeight = qMax(visibleRoles().count(), 1) * lineSpacing;
1045     const int scaledIconSize = (textLinesHeight < option.iconSize) ? widgetHeight - 2 * option.padding : option.iconSize;
1046
1047     qreal maximumRequiredTextWidth = 0;
1048     const qreal x = option.padding * 3 + scaledIconSize;
1049     qreal y = qRound((widgetHeight - textLinesHeight) / 2);
1050     const qreal maxWidth = size().width() - x - option.padding;
1051     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1052         const QString text = roleText(role, values);
1053         TextInfo* textInfo = m_textInfo.value(role);
1054         textInfo->staticText.setText(text);
1055
1056         qreal requiredWidth = option.fontMetrics.width(text);
1057         if (requiredWidth > maxWidth) {
1058             requiredWidth = maxWidth;
1059             const QString elidedText = option.fontMetrics.elidedText(text, Qt::ElideRight, maxWidth);
1060             textInfo->staticText.setText(elidedText);
1061         }
1062
1063         textInfo->pos = QPointF(x, y);
1064         textInfo->staticText.setTextWidth(maxWidth);
1065
1066         maximumRequiredTextWidth = qMax(maximumRequiredTextWidth, requiredWidth);
1067
1068         y += lineSpacing;
1069     }
1070
1071     m_textRect = QRectF(x - option.padding, 0, maximumRequiredTextWidth + 2 * option.padding, widgetHeight);
1072 }
1073
1074 void KStandardItemListWidget::updateDetailsLayoutTextCache()
1075 {
1076     // Precondition: Requires already updated m_expansionArea
1077     // to determine the left position.
1078
1079     // +------+
1080     // | Icon |  Name role   Additional role 1   Additional role 2
1081     // +------+
1082     m_textRect = QRectF();
1083
1084     const KItemListStyleOption& option = styleOption();
1085     const QHash<QByteArray, QVariant> values = data();
1086
1087     const qreal widgetHeight = size().height();
1088     const int scaledIconSize = widgetHeight - 2 * option.padding;
1089     const int fontHeight = option.fontMetrics.height();
1090
1091     const qreal columnWidthInc = columnPadding(option);
1092     qreal firstColumnInc = scaledIconSize;
1093     if (m_supportsItemExpanding) {
1094         firstColumnInc += (m_expansionArea.left() + m_expansionArea.right() + widgetHeight) / 2;
1095     } else {
1096         firstColumnInc += option.padding;
1097     }
1098
1099     qreal x = firstColumnInc;
1100     const qreal y = qMax(qreal(option.padding), (widgetHeight - fontHeight) / 2);
1101
1102     foreach (const QByteArray& role, m_sortedVisibleRoles) {
1103         QString text = roleText(role, values);
1104
1105         // Elide the text in case it does not fit into the available column-width
1106         qreal requiredWidth = option.fontMetrics.width(text);
1107         const qreal roleWidth = columnWidth(role);
1108         qreal availableTextWidth = roleWidth - columnWidthInc;
1109
1110         const bool isTextRole = (role == "text");
1111         if (isTextRole) {
1112             availableTextWidth -= firstColumnInc;
1113         }
1114
1115         if (requiredWidth > availableTextWidth) {
1116             text = option.fontMetrics.elidedText(text, Qt::ElideRight, availableTextWidth);
1117             requiredWidth = option.fontMetrics.width(text);
1118         }
1119
1120         TextInfo* textInfo = m_textInfo.value(role);
1121         textInfo->staticText.setText(text);
1122         textInfo->pos = QPointF(x + columnWidthInc / 2, y);
1123         x += roleWidth;
1124
1125         if (isTextRole) {
1126             const qreal textWidth = option.extendedSelectionRegion
1127                                     ? size().width() - textInfo->pos.x()
1128                                     : requiredWidth + 2 * option.padding;
1129             m_textRect = QRectF(textInfo->pos.x() - option.padding, 0,
1130                                 textWidth, size().height());
1131
1132             // The column after the name should always be aligned on the same x-position independent
1133             // from the expansion-level shown in the name column
1134             x -= firstColumnInc;
1135         } else if (isRoleRightAligned(role)) {
1136             textInfo->pos.rx() += roleWidth - requiredWidth - columnWidthInc;
1137         }
1138     }
1139 }
1140
1141 void KStandardItemListWidget::updateAdditionalInfoTextColor()
1142 {
1143     QColor c1;
1144     if (m_customTextColor.isValid()) {
1145         c1 = m_customTextColor;
1146     } else if (isSelected() && m_layout != DetailsLayout) {
1147         c1 = styleOption().palette.highlightedText().color();
1148     } else {
1149         c1 = styleOption().palette.text().color();
1150     }
1151
1152     // For the color of the additional info the inactive text color
1153     // is not used as this might lead to unreadable text for some color schemes. Instead
1154     // the text color c1 is slightly mixed with the background color.
1155     const QColor c2 = styleOption().palette.base().color();
1156     const int p1 = 70;
1157     const int p2 = 100 - p1;
1158     m_additionalInfoTextColor = QColor((c1.red()   * p1 + c2.red()   * p2) / 100,
1159                                        (c1.green() * p1 + c2.green() * p2) / 100,
1160                                        (c1.blue()  * p1 + c2.blue()  * p2) / 100);
1161 }
1162
1163 void KStandardItemListWidget::drawPixmap(QPainter* painter, const QPixmap& pixmap)
1164 {
1165     if (m_scaledPixmapSize != pixmap.size()) {
1166         QPixmap scaledPixmap = pixmap;
1167         KPixmapModifier::scale(scaledPixmap, m_scaledPixmapSize);
1168         painter->drawPixmap(m_pixmapPos, scaledPixmap);
1169
1170 #ifdef KSTANDARDITEMLISTWIDGET_DEBUG
1171         painter->setPen(Qt::blue);
1172         painter->drawRect(QRectF(m_pixmapPos, QSizeF(m_scaledPixmapSize)));
1173 #endif
1174     } else {
1175         painter->drawPixmap(m_pixmapPos, pixmap);
1176     }
1177 }
1178
1179 void KStandardItemListWidget::drawSiblingsInformation(QPainter* painter)
1180 {
1181     const int siblingSize = size().height();
1182     const int x = (m_expansionArea.left() + m_expansionArea.right() - siblingSize) / 2;
1183     QRect siblingRect(x, 0, siblingSize, siblingSize);
1184
1185     QStyleOption option;
1186     bool isItemSibling = true;
1187
1188     const QBitArray siblings = siblingsInformation();
1189     for (int i = siblings.count() - 1; i >= 0; --i) {
1190         option.rect = siblingRect;
1191         option.state = siblings.at(i) ? QStyle::State_Sibling : QStyle::State_None;
1192
1193         if (isItemSibling) {
1194             option.state |= QStyle::State_Item;
1195             if (m_isExpandable) {
1196                 option.state |= QStyle::State_Children;
1197             }
1198             if (data()["isExpanded"].toBool()) {
1199                 option.state |= QStyle::State_Open;
1200             }
1201             isItemSibling = false;
1202         }
1203
1204         style()->drawPrimitive(QStyle::PE_IndicatorBranch, &option, painter);
1205
1206         siblingRect.translate(-siblingRect.width(), 0);
1207     }
1208 }
1209
1210 QRectF KStandardItemListWidget::roleEditingRect(const QByteArray& role) const
1211 {
1212     const TextInfo* textInfo = m_textInfo.value(role);
1213     if (!textInfo) {
1214         return QRectF();
1215     }
1216
1217     QRectF rect(textInfo->pos, textInfo->staticText.size());
1218     if (m_layout == DetailsLayout) {
1219         rect.setWidth(columnWidth(role) - rect.x());
1220     }
1221
1222     return rect;
1223 }
1224
1225 QPixmap KStandardItemListWidget::pixmapForIcon(const QString& name, int size)
1226 {
1227     const KIcon icon(name);
1228
1229     int requestedSize;
1230     if (size <= KIconLoader::SizeSmall) {
1231         requestedSize = KIconLoader::SizeSmall;
1232     } else if (size <= KIconLoader::SizeSmallMedium) {
1233         requestedSize = KIconLoader::SizeSmallMedium;
1234     } else if (size <= KIconLoader::SizeMedium) {
1235         requestedSize = KIconLoader::SizeMedium;
1236     } else if (size <= KIconLoader::SizeLarge) {
1237         requestedSize = KIconLoader::SizeLarge;
1238     } else if (size <= KIconLoader::SizeHuge) {
1239         requestedSize = KIconLoader::SizeHuge;
1240     } else if (size <= KIconLoader::SizeEnormous) {
1241         requestedSize = KIconLoader::SizeEnormous;
1242     } else if (size <= KIconLoader::SizeEnormous * 2) {
1243         requestedSize = KIconLoader::SizeEnormous * 2;
1244     } else {
1245         requestedSize = size;
1246     }
1247
1248     QPixmap pixmap = icon.pixmap(requestedSize, requestedSize);
1249     if (requestedSize != size) {
1250         KPixmapModifier::scale(pixmap, QSize(size, size));
1251     }
1252
1253     return pixmap;
1254 }
1255
1256 void KStandardItemListWidget::applyCutEffect(QPixmap& pixmap)
1257 {
1258     KIconEffect* effect = KIconLoader::global()->iconEffect();
1259     pixmap = effect->apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
1260 }
1261
1262 void KStandardItemListWidget::applyHiddenEffect(QPixmap& pixmap)
1263 {
1264     KIconEffect::semiTransparent(pixmap);
1265 }
1266
1267 QSizeF KStandardItemListWidget::preferredRatingSize(const KItemListStyleOption& option)
1268 {
1269     const qreal height = option.fontMetrics.ascent();
1270     return QSizeF(height * 5, height);
1271 }
1272
1273 qreal KStandardItemListWidget::columnPadding(const KItemListStyleOption& option)
1274 {
1275     return option.padding * 6;
1276 }
1277
1278 #include "kstandarditemlistwidget.moc"